diff options
30 files changed, 6990 insertions, 2 deletions
diff --git a/release/scripts/startup/bl_ui/space_topbar.py b/release/scripts/startup/bl_ui/space_topbar.py index 7219922c379..adab0b0c88a 100644 --- a/release/scripts/startup/bl_ui/space_topbar.py +++ b/release/scripts/startup/bl_ui/space_topbar.py @@ -469,6 +469,8 @@ class TOPBAR_MT_file_import(Menu): if bpy.app.build_options.alembic: self.layout.operator("wm.alembic_import", text="Alembic (.abc)") + self.layout.operator("wm.gpencil_import_svg", text="SVG as Grease Pencil") + class TOPBAR_MT_file_export(Menu): bl_idname = "TOPBAR_MT_file_export" @@ -485,6 +487,13 @@ class TOPBAR_MT_file_export(Menu): self.layout.operator( "wm.usd_export", text="Universal Scene Description (.usd, .usdc, .usda)") + # Pugixml lib dependency + if bpy.app.build_options.pugixml: + self.layout.operator("wm.gpencil_export_svg", text="Grease Pencil as SVG") + # Haru lib dependency + if bpy.app.build_options.haru: + self.layout.operator("wm.gpencil_export_pdf", text="Grease Pencil as PDF") + class TOPBAR_MT_file_external_data(Menu): bl_label = "External Data" diff --git a/source/blender/blenkernel/BKE_gpencil_geom.h b/source/blender/blenkernel/BKE_gpencil_geom.h index 89a794f2df3..a9bd0a524c4 100644 --- a/source/blender/blenkernel/BKE_gpencil_geom.h +++ b/source/blender/blenkernel/BKE_gpencil_geom.h @@ -27,10 +27,10 @@ extern "C" { #endif -struct BoundBox; struct Depsgraph; struct Main; struct Object; +struct RegionView3D; struct Scene; struct bGPDcurve; struct bGPDframe; @@ -173,6 +173,20 @@ void BKE_gpencil_stroke_uniform_subdivide(struct bGPdata *gpd, const uint32_t target_number, const bool select); +void BKE_gpencil_stroke_to_view_space(struct RegionView3D *rv3d, + struct bGPDstroke *gps, + const float diff_mat[4][4]); +void BKE_gpencil_stroke_from_view_space(struct RegionView3D *rv3d, + struct bGPDstroke *gps, + const float diff_mat[4][4]); +struct bGPDstroke *BKE_gpencil_stroke_perimeter_from_view(struct RegionView3D *rv3d, + struct bGPdata *gpd, + const struct bGPDlayer *gpl, + struct bGPDstroke *gps, + const int subdivisions, + const float diff_mat[4][4]); +float BKE_gpencil_stroke_average_pressure_get(struct bGPDstroke *gps); +bool BKE_gpencil_stroke_is_pressure_constant(struct bGPDstroke *gps); #ifdef __cplusplus } #endif diff --git a/source/blender/blenkernel/intern/gpencil_geom.c b/source/blender/blenkernel/intern/gpencil_geom.c index 8c4882854d1..5d8dd99b3ae 100644 --- a/source/blender/blenkernel/intern/gpencil_geom.c +++ b/source/blender/blenkernel/intern/gpencil_geom.c @@ -46,9 +46,11 @@ #include "DNA_mesh_types.h" #include "DNA_meshdata_types.h" #include "DNA_scene_types.h" +#include "DNA_screen_types.h" #include "BLT_translation.h" +#include "BKE_context.h" #include "BKE_deform.h" #include "BKE_gpencil.h" #include "BKE_gpencil_curve.h" @@ -3460,4 +3462,555 @@ void BKE_gpencil_stroke_uniform_subdivide(bGPdata *gpd, BKE_gpencil_stroke_geometry_update(gpd, gps); } +/** + * Stroke to view space + * Transforms a stroke to view space. This allows for manipulations in 2D but also easy conversion + * back to 3D. + * Note: also takes care of parent space transform + */ +void BKE_gpencil_stroke_to_view_space(RegionView3D *rv3d, + bGPDstroke *gps, + const float diff_mat[4][4]) +{ + for (int i = 0; i < gps->totpoints; i++) { + bGPDspoint *pt = &gps->points[i]; + /* Point to parent space. */ + mul_v3_m4v3(&pt->x, diff_mat, &pt->x); + /* point to view space */ + mul_m4_v3(rv3d->viewmat, &pt->x); + } +} + +/** + * Stroke from view space + * Transforms a stroke from view space back to world space. Inverse of + * BKE_gpencil_stroke_to_view_space + * Note: also takes care of parent space transform + */ +void BKE_gpencil_stroke_from_view_space(RegionView3D *rv3d, + bGPDstroke *gps, + const float diff_mat[4][4]) +{ + float inverse_diff_mat[4][4]; + invert_m4_m4(inverse_diff_mat, diff_mat); + + for (int i = 0; i < gps->totpoints; i++) { + bGPDspoint *pt = &gps->points[i]; + mul_v3_m4v3(&pt->x, rv3d->viewinv, &pt->x); + mul_m4_v3(inverse_diff_mat, &pt->x); + } +} + +/* ----------------------------------------------------------------------------- */ +/* Stroke to perimeter */ + +typedef struct tPerimeterPoint { + struct tPerimeterPoint *next, *prev; + float x, y, z; +} tPerimeterPoint; + +static tPerimeterPoint *new_perimeter_point(const float pt[3]) +{ + tPerimeterPoint *new_pt = MEM_callocN(sizeof(tPerimeterPoint), __func__); + copy_v3_v3(&new_pt->x, pt); + return new_pt; +} + +static int generate_arc_from_point_to_point(ListBase *list, + tPerimeterPoint *from, + tPerimeterPoint *to, + float center_pt[3], + int subdivisions, + bool clockwise) +{ + float vec_from[2]; + float vec_to[2]; + sub_v2_v2v2(vec_from, &from->x, center_pt); + sub_v2_v2v2(vec_to, &to->x, center_pt); + if (is_zero_v2(vec_from) || is_zero_v2(vec_to)) { + return 0; + } + + float dot = dot_v2v2(vec_from, vec_to); + float det = cross_v2v2(vec_from, vec_to); + float angle = clockwise ? M_PI - atan2f(-det, -dot) : atan2f(-det, -dot) + M_PI; + + /* Number of points is 2^(n+1) + 1 on half a circle (n=subdivisions) + * so we multiply by (angle / pi) to get the right amount of + * points to insert. */ + int num_points = (int)(((1 << (subdivisions + 1)) - 1) * (angle / M_PI)); + if (num_points > 0) { + float angle_incr = angle / (float)num_points; + + float vec_p[3]; + float vec_t[3]; + float tmp_angle; + tPerimeterPoint *last_point; + if (clockwise) { + last_point = to; + copy_v2_v2(vec_t, vec_to); + } + else { + last_point = from; + copy_v2_v2(vec_t, vec_from); + } + + for (int i = 0; i < num_points - 1; i++) { + tmp_angle = (i + 1) * angle_incr; + + rotate_v2_v2fl(vec_p, vec_t, tmp_angle); + add_v2_v2(vec_p, center_pt); + vec_p[2] = center_pt[2]; + + tPerimeterPoint *new_point = new_perimeter_point(vec_p); + if (clockwise) { + BLI_insertlinkbefore(list, last_point, new_point); + } + else { + BLI_insertlinkafter(list, last_point, new_point); + } + + last_point = new_point; + } + + return num_points - 1; + } + + return 0; +} + +static int generate_semi_circle_from_point_to_point(ListBase *list, + tPerimeterPoint *from, + tPerimeterPoint *to, + int subdivisions) +{ + int num_points = (1 << (subdivisions + 1)) + 1; + float center_pt[3]; + interp_v3_v3v3(center_pt, &from->x, &to->x, 0.5f); + + float vec_center[2]; + sub_v2_v2v2(vec_center, &from->x, center_pt); + if (is_zero_v2(vec_center)) { + return 0; + } + + float vec_p[3]; + float angle_incr = M_PI / ((float)num_points - 1); + + tPerimeterPoint *last_point = from; + for (int i = 1; i < num_points; i++) { + float angle = i * angle_incr; + + /* Rotate vector around point to get perimeter points. */ + rotate_v2_v2fl(vec_p, vec_center, angle); + add_v2_v2(vec_p, center_pt); + vec_p[2] = center_pt[2]; + + tPerimeterPoint *new_point = new_perimeter_point(vec_p); + BLI_insertlinkafter(list, last_point, new_point); + + last_point = new_point; + } + + return num_points - 1; +} + +static int generate_perimeter_cap(const float point[4], + const float other_point[4], + float radius, + ListBase *list, + int subdivisions, + short cap_type) +{ + float cap_vec[2]; + sub_v2_v2v2(cap_vec, other_point, point); + normalize_v2(cap_vec); + + float cap_nvec[2]; + if (is_zero_v2(cap_vec)) { + cap_nvec[0] = 0; + cap_nvec[1] = radius; + } + else { + cap_nvec[0] = -cap_vec[1]; + cap_nvec[1] = cap_vec[0]; + mul_v2_fl(cap_nvec, radius); + } + float cap_nvec_inv[2]; + negate_v2_v2(cap_nvec_inv, cap_nvec); + + float vec_perimeter[3]; + copy_v3_v3(vec_perimeter, point); + add_v2_v2(vec_perimeter, cap_nvec); + + float vec_perimeter_inv[3]; + copy_v3_v3(vec_perimeter_inv, point); + add_v2_v2(vec_perimeter_inv, cap_nvec_inv); + + tPerimeterPoint *p_pt = new_perimeter_point(vec_perimeter); + tPerimeterPoint *p_pt_inv = new_perimeter_point(vec_perimeter_inv); + + BLI_addtail(list, p_pt); + BLI_addtail(list, p_pt_inv); + + int num_points = 0; + if (cap_type == GP_STROKE_CAP_ROUND) { + num_points += generate_semi_circle_from_point_to_point(list, p_pt, p_pt_inv, subdivisions); + } + + return num_points + 2; +} + +/** + * Calculate the perimeter (outline) of a stroke as list of tPerimeterPoint. + * \param subdivisions: Number of subdivions for the start and end caps + * \return: list of tPerimeterPoint + */ +static ListBase *gpencil_stroke_perimeter_ex(const bGPdata *gpd, + const bGPDlayer *gpl, + const bGPDstroke *gps, + int subdivisions, + int *r_num_perimeter_points) +{ + /* sanity check */ + if (gps->totpoints < 1) { + return NULL; + } + + float defaultpixsize = 1000.0f / gpd->pixfactor; + float stroke_radius = ((gps->thickness + gpl->line_change) / defaultpixsize) / 2.0f; + + ListBase *perimeter_right_side = MEM_callocN(sizeof(ListBase), __func__); + ListBase *perimeter_left_side = MEM_callocN(sizeof(ListBase), __func__); + int num_perimeter_points = 0; + + bGPDspoint *first = &gps->points[0]; + bGPDspoint *last = &gps->points[gps->totpoints - 1]; + + float first_radius = stroke_radius * first->pressure; + float last_radius = stroke_radius * last->pressure; + + bGPDspoint *first_next; + bGPDspoint *last_prev; + if (gps->totpoints > 1) { + first_next = &gps->points[1]; + last_prev = &gps->points[gps->totpoints - 2]; + } + else { + first_next = first; + last_prev = last; + } + + float first_pt[3]; + float last_pt[3]; + float first_next_pt[3]; + float last_prev_pt[3]; + copy_v3_v3(first_pt, &first->x); + copy_v3_v3(last_pt, &last->x); + copy_v3_v3(first_next_pt, &first_next->x); + copy_v3_v3(last_prev_pt, &last_prev->x); + + /* edgecase if single point */ + if (gps->totpoints == 1) { + first_next_pt[0] += 1.0f; + last_prev_pt[0] -= 1.0f; + } + + /* generate points for start cap */ + num_perimeter_points += generate_perimeter_cap( + first_pt, first_next_pt, first_radius, perimeter_right_side, subdivisions, gps->caps[0]); + + /* generate perimeter points */ + float curr_pt[3], next_pt[3], prev_pt[3]; + float vec_next[2], vec_prev[2]; + float nvec_next[2], nvec_prev[2]; + float nvec_next_pt[3], nvec_prev_pt[3]; + float vec_tangent[2]; + + float vec_miter_left[2], vec_miter_right[2]; + float miter_left_pt[3], miter_right_pt[3]; + + for (int i = 1; i < gps->totpoints - 1; i++) { + bGPDspoint *curr = &gps->points[i]; + bGPDspoint *prev = &gps->points[i - 1]; + bGPDspoint *next = &gps->points[i + 1]; + float radius = stroke_radius * curr->pressure; + + copy_v3_v3(curr_pt, &curr->x); + copy_v3_v3(next_pt, &next->x); + copy_v3_v3(prev_pt, &prev->x); + + sub_v2_v2v2(vec_prev, curr_pt, prev_pt); + sub_v2_v2v2(vec_next, next_pt, curr_pt); + float prev_length = len_v2(vec_prev); + float next_length = len_v2(vec_next); + + if (normalize_v2(vec_prev) == 0.0f) { + vec_prev[0] = 1.0f; + vec_prev[1] = 0.0f; + } + if (normalize_v2(vec_next) == 0.0f) { + vec_next[0] = 1.0f; + vec_next[1] = 0.0f; + } + + nvec_prev[0] = -vec_prev[1]; + nvec_prev[1] = vec_prev[0]; + + nvec_next[0] = -vec_next[1]; + nvec_next[1] = vec_next[0]; + + add_v2_v2v2(vec_tangent, vec_prev, vec_next); + if (normalize_v2(vec_tangent) == 0.0f) { + copy_v2_v2(vec_tangent, nvec_prev); + } + + vec_miter_left[0] = -vec_tangent[1]; + vec_miter_left[1] = vec_tangent[0]; + + /* calculate miter length */ + float an1 = dot_v2v2(vec_miter_left, nvec_prev); + if (an1 == 0.0f) { + an1 = 1.0f; + } + float miter_length = radius / an1; + if (miter_length <= 0.0f) { + miter_length = 0.01f; + } + + normalize_v2_length(vec_miter_left, miter_length); + + copy_v2_v2(vec_miter_right, vec_miter_left); + negate_v2(vec_miter_right); + + float angle = dot_v2v2(vec_next, nvec_prev); + /* add two points if angle is close to beeing straight */ + if (fabsf(angle) < 0.0001f) { + normalize_v2_length(nvec_prev, radius); + normalize_v2_length(nvec_next, radius); + + copy_v3_v3(nvec_prev_pt, curr_pt); + add_v2_v2(nvec_prev_pt, nvec_prev); + + copy_v3_v3(nvec_next_pt, curr_pt); + negate_v2(nvec_next); + add_v2_v2(nvec_next_pt, nvec_next); + + tPerimeterPoint *normal_prev = new_perimeter_point(nvec_prev_pt); + tPerimeterPoint *normal_next = new_perimeter_point(nvec_next_pt); + + BLI_addtail(perimeter_left_side, normal_prev); + BLI_addtail(perimeter_right_side, normal_next); + num_perimeter_points += 2; + } + else { + /* bend to the left */ + if (angle < 0.0f) { + normalize_v2_length(nvec_prev, radius); + normalize_v2_length(nvec_next, radius); + + copy_v3_v3(nvec_prev_pt, curr_pt); + add_v2_v2(nvec_prev_pt, nvec_prev); + + copy_v3_v3(nvec_next_pt, curr_pt); + add_v2_v2(nvec_next_pt, nvec_next); + + tPerimeterPoint *normal_prev = new_perimeter_point(nvec_prev_pt); + tPerimeterPoint *normal_next = new_perimeter_point(nvec_next_pt); + + BLI_addtail(perimeter_left_side, normal_prev); + BLI_addtail(perimeter_left_side, normal_next); + num_perimeter_points += 2; + + num_perimeter_points += generate_arc_from_point_to_point( + perimeter_left_side, normal_prev, normal_next, curr_pt, subdivisions, true); + + if (miter_length < prev_length && miter_length < next_length) { + copy_v3_v3(miter_right_pt, curr_pt); + add_v2_v2(miter_right_pt, vec_miter_right); + } + else { + copy_v3_v3(miter_right_pt, curr_pt); + negate_v2(nvec_next); + add_v2_v2(miter_right_pt, nvec_next); + } + + tPerimeterPoint *miter_right = new_perimeter_point(miter_right_pt); + BLI_addtail(perimeter_right_side, miter_right); + num_perimeter_points++; + } + /* bend to the right */ + else { + normalize_v2_length(nvec_prev, -radius); + normalize_v2_length(nvec_next, -radius); + + copy_v3_v3(nvec_prev_pt, curr_pt); + add_v2_v2(nvec_prev_pt, nvec_prev); + + copy_v3_v3(nvec_next_pt, curr_pt); + add_v2_v2(nvec_next_pt, nvec_next); + + tPerimeterPoint *normal_prev = new_perimeter_point(nvec_prev_pt); + tPerimeterPoint *normal_next = new_perimeter_point(nvec_next_pt); + + BLI_addtail(perimeter_right_side, normal_prev); + BLI_addtail(perimeter_right_side, normal_next); + num_perimeter_points += 2; + + num_perimeter_points += generate_arc_from_point_to_point( + perimeter_right_side, normal_prev, normal_next, curr_pt, subdivisions, false); + + if (miter_length < prev_length && miter_length < next_length) { + copy_v3_v3(miter_left_pt, curr_pt); + add_v2_v2(miter_left_pt, vec_miter_left); + } + else { + copy_v3_v3(miter_left_pt, curr_pt); + negate_v2(nvec_prev); + add_v2_v2(miter_left_pt, nvec_prev); + } + + tPerimeterPoint *miter_left = new_perimeter_point(miter_left_pt); + BLI_addtail(perimeter_left_side, miter_left); + num_perimeter_points++; + } + } + } + + /* generate points for end cap */ + num_perimeter_points += generate_perimeter_cap( + last_pt, last_prev_pt, last_radius, perimeter_right_side, subdivisions, gps->caps[1]); + + /* merge both sides to one list */ + BLI_listbase_reverse(perimeter_right_side); + BLI_movelisttolist(perimeter_left_side, + perimeter_right_side); // perimeter_left_side contains entire list + ListBase *perimeter_list = perimeter_left_side; + + /* close by creating a point close to the first (make a small gap) */ + float close_pt[3]; + tPerimeterPoint *close_first = (tPerimeterPoint *)perimeter_list->first; + tPerimeterPoint *close_last = (tPerimeterPoint *)perimeter_list->last; + interp_v3_v3v3(close_pt, &close_last->x, &close_first->x, 0.99f); + + if (compare_v3v3(close_pt, &close_first->x, FLT_EPSILON) == false) { + tPerimeterPoint *close_p_pt = new_perimeter_point(close_pt); + BLI_addtail(perimeter_list, close_p_pt); + num_perimeter_points++; + } + + /* free temp data */ + BLI_freelistN(perimeter_right_side); + MEM_freeN(perimeter_right_side); + + *r_num_perimeter_points = num_perimeter_points; + return perimeter_list; +} + +/** + * Calculates the perimeter of a stroke projected from the view and + * returns it as a new stroke. + * \param subdivisions: Number of subdivions for the start and end caps + * \return: bGPDstroke pointer to stroke perimeter + */ +bGPDstroke *BKE_gpencil_stroke_perimeter_from_view(struct RegionView3D *rv3d, + bGPdata *gpd, + const bGPDlayer *gpl, + bGPDstroke *gps, + const int subdivisions, + const float diff_mat[4][4]) +{ + if (gps->totpoints == 0) { + return NULL; + } + bGPDstroke *gps_temp = BKE_gpencil_stroke_duplicate(gps, true, false); + const bool cyclic = ((gps_temp->flag & GP_STROKE_CYCLIC) != 0); + + /* If Cyclic, add a new point. */ + if (cyclic && (gps_temp->totpoints > 1)) { + gps_temp->totpoints++; + gps_temp->points = MEM_recallocN(gps_temp->points, + sizeof(*gps_temp->points) * gps_temp->totpoints); + bGPDspoint *pt_src = &gps_temp->points[0]; + bGPDspoint *pt_dst = &gps_temp->points[gps_temp->totpoints - 1]; + copy_v3_v3(&pt_dst->x, &pt_src->x); + pt_dst->pressure = pt_src->pressure; + pt_dst->strength = pt_src->strength; + pt_dst->uv_fac = 1.0f; + pt_dst->uv_rot = 0; + } + + BKE_gpencil_stroke_to_view_space(rv3d, gps_temp, diff_mat); + int num_perimeter_points = 0; + ListBase *perimeter_points = gpencil_stroke_perimeter_ex( + gpd, gpl, gps_temp, subdivisions, &num_perimeter_points); + + if (num_perimeter_points == 0) { + return NULL; + } + + /* Create new stroke. */ + bGPDstroke *perimeter_stroke = BKE_gpencil_stroke_new(gps_temp->mat_nr, num_perimeter_points, 1); + + int i = 0; + LISTBASE_FOREACH_INDEX (tPerimeterPoint *, curr, perimeter_points, i) { + bGPDspoint *pt = &perimeter_stroke->points[i]; + + copy_v3_v3(&pt->x, &curr->x); + pt->pressure = 0.0f; + pt->strength = 1.0f; + + pt->flag |= GP_SPOINT_SELECT; + } + + BKE_gpencil_stroke_from_view_space(rv3d, perimeter_stroke, diff_mat); + + /* Free temp data. */ + BLI_freelistN(perimeter_points); + MEM_freeN(perimeter_points); + + /* Triangles cache needs to be recalculated. */ + BKE_gpencil_stroke_geometry_update(gpd, perimeter_stroke); + + perimeter_stroke->flag |= GP_STROKE_SELECT | GP_STROKE_CYCLIC; + + BKE_gpencil_free_stroke(gps_temp); + + return perimeter_stroke; +} + +/** Get average pressure. */ +float BKE_gpencil_stroke_average_pressure_get(bGPDstroke *gps) +{ + + if (gps->totpoints == 1) { + return gps->points[0].pressure; + } + + float tot = 0.0f; + for (int i = 0; i < gps->totpoints; i++) { + const bGPDspoint *pt = &gps->points[i]; + tot += pt->pressure; + } + + return tot / (float)gps->totpoints; +} + +/** Check if the thickness of the stroke is constant. */ +bool BKE_gpencil_stroke_is_pressure_constant(bGPDstroke *gps) +{ + if (gps->totpoints == 1) { + return true; + } + + const float first_pressure = gps->points[0].pressure; + for (int i = 0; i < gps->totpoints; i++) { + const bGPDspoint *pt = &gps->points[i]; + if (pt->pressure != first_pressure) { + return false; + } + } + + return true; +} /** \} */ diff --git a/source/blender/editors/gpencil/gpencil_utils.c b/source/blender/editors/gpencil/gpencil_utils.c index 5c041134a74..574670de7ca 100644 --- a/source/blender/editors/gpencil/gpencil_utils.c +++ b/source/blender/editors/gpencil/gpencil_utils.c @@ -596,6 +596,21 @@ bool ED_gpencil_stroke_material_editable(Object *ob, const bGPDlayer *gpl, const return true; } +/* Check whether given stroke is visible for the current material. */ +bool ED_gpencil_stroke_material_visible(Object *ob, const bGPDstroke *gps) +{ + /* check if the color is editable */ + MaterialGPencilStyle *gp_style = BKE_gpencil_material_settings(ob, gps->mat_nr + 1); + + if (gp_style != NULL) { + if (gp_style->flag & GP_MATERIAL_HIDE) { + return false; + } + } + + return true; +} + /* ******************************************************** */ /* Space Conversion */ diff --git a/source/blender/editors/include/ED_gpencil.h b/source/blender/editors/include/ED_gpencil.h index f3b5abb1072..e9ac21f60cf 100644 --- a/source/blender/editors/include/ED_gpencil.h +++ b/source/blender/editors/include/ED_gpencil.h @@ -150,6 +150,7 @@ bool ED_gpencil_stroke_can_use(const struct bContext *C, const struct bGPDstroke bool ED_gpencil_stroke_material_editable(struct Object *ob, const struct bGPDlayer *gpl, const struct bGPDstroke *gps); +bool ED_gpencil_stroke_material_visible(struct Object *ob, const struct bGPDstroke *gps); /* ----------- Grease Pencil Operators ----------------- */ diff --git a/source/blender/editors/io/CMakeLists.txt b/source/blender/editors/io/CMakeLists.txt index e7effd05d34..d45c7ca9b75 100644 --- a/source/blender/editors/io/CMakeLists.txt +++ b/source/blender/editors/io/CMakeLists.txt @@ -24,6 +24,7 @@ set(INC ../../depsgraph ../../io/alembic ../../io/collada + ../../io/gpencil ../../io/usd ../../makesdna ../../makesrna @@ -39,12 +40,16 @@ set(SRC io_alembic.c io_cache.c io_collada.c + io_gpencil_import.c + io_gpencil_export.c + io_gpencil_utils.c io_ops.c io_usd.c io_alembic.h io_cache.h io_collada.h + io_gpencil.h io_ops.h io_usd.h ) @@ -79,4 +84,14 @@ if(WITH_INTERNATIONAL) add_definitions(-DWITH_INTERNATIONAL) endif() +if(WITH_PUGIXML) + add_definitions(-DWITH_PUGIXML) +endif() + +if(WITH_HARU) + add_definitions(-DWITH_HARU) +endif() + +list(APPEND LIB bf_gpencil) + blender_add_lib(bf_editor_io "${SRC}" "${INC}" "${INC_SYS}" "${LIB}") diff --git a/source/blender/editors/io/io_gpencil.h b/source/blender/editors/io/io_gpencil.h new file mode 100644 index 00000000000..98cb8b13310 --- /dev/null +++ b/source/blender/editors/io/io_gpencil.h @@ -0,0 +1,45 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * The Original Code is Copyright (C) 2020 Blender Foundation. + * All rights reserved. + */ + +#ifndef __IO_GPENCIL_H__ +#define __IO_GPENCIL_H__ + +/** \file + * \ingroup editor/io + */ + +struct ARegion; +struct bContext; +struct View3D; +struct wmOperator; +struct wmOperatorType; + +void WM_OT_gpencil_import_svg(struct wmOperatorType *ot); + +#ifdef WITH_PUGIXML +void WM_OT_gpencil_export_svg(struct wmOperatorType *ot); +#endif +#ifdef WITH_HARU +void WM_OT_gpencil_export_pdf(struct wmOperatorType *ot); +#endif + +struct ARegion *get_invoke_region(struct bContext *C); +struct View3D *get_invoke_view3d(struct bContext *C); + +#endif /* __IO_GPENCIL_H__ */ diff --git a/source/blender/editors/io/io_gpencil_export.c b/source/blender/editors/io/io_gpencil_export.c new file mode 100644 index 00000000000..6f1e503403b --- /dev/null +++ b/source/blender/editors/io/io_gpencil_export.c @@ -0,0 +1,430 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * The Original Code is Copyright (C) 2020 Blender Foundation. + * All rights reserved. + */ + +/** \file + * \ingroup editor/io + */ + +#include "BLI_path_util.h" +#include "BLI_string.h" + +#include "DNA_gpencil_types.h" +#include "DNA_space_types.h" + +#include "BKE_gpencil.h" +#include "BKE_main.h" +#include "BKE_report.h" +#include "BKE_screen.h" + +#include "BLT_translation.h" + +#include "RNA_access.h" +#include "RNA_define.h" + +#include "UI_interface.h" +#include "UI_resources.h" + +#include "WM_api.h" +#include "WM_types.h" + +#include "DEG_depsgraph.h" +#include "DEG_depsgraph_query.h" + +#include "io_gpencil.h" + +#include "gpencil_io.h" + +/* Definition of enum elements to export. */ +/* Common props for exporting. */ +static void gpencil_export_common_props_definition(wmOperatorType *ot) +{ + static const EnumPropertyItem select_items[] = { + {GP_EXPORT_ACTIVE, "ACTIVE", 0, "Active", "Include only the active object"}, + {GP_EXPORT_SELECTED, "SELECTED", 0, "Selected", "Include selected objects"}, + {GP_EXPORT_VISIBLE, "VISIBLE", 0, "Visible", "Include all visible objects"}, + {0, NULL, 0, NULL, NULL}, + }; + + RNA_def_boolean(ot->srna, "use_fill", true, "Fill", "Export strokes with fill enabled"); + RNA_def_enum(ot->srna, + "selected_object_type", + select_items, + GP_EXPORT_SELECTED, + "Object", + "Which objects to include in the export"); + RNA_def_float(ot->srna, + "stroke_sample", + 0.0f, + 0.0f, + 100.0f, + "Sampling", + "Precision of stroke sampling. Low values mean a more precise result, and zero " + "disables sampling", + 0.0f, + 100.0f); + RNA_def_boolean(ot->srna, + "use_normalized_thickness", + false, + "Normalize", + "Export strokes with constant thickness"); +} + +static void set_export_filepath(bContext *C, wmOperator *op) +{ + if (!RNA_struct_property_is_set(op->ptr, "filepath")) { + Main *bmain = CTX_data_main(C); + char filepath[FILE_MAX]; + + if (BKE_main_blendfile_path(bmain)[0] == '\0') { + BLI_strncpy(filepath, "untitled", sizeof(filepath)); + } + else { + BLI_strncpy(filepath, BKE_main_blendfile_path(bmain), sizeof(filepath)); + } + + BLI_path_extension_replace(filepath, sizeof(filepath), ".pdf"); + RNA_string_set(op->ptr, "filepath", filepath); + } +} + +/* <-------- SVG single frame export. --------> */ +#ifdef WITH_PUGIXML +static bool wm_gpencil_export_svg_common_check(bContext *UNUSED(C), wmOperator *op) +{ + char filepath[FILE_MAX]; + RNA_string_get(op->ptr, "filepath", filepath); + + if (!BLI_path_extension_check(filepath, ".svg")) { + BLI_path_extension_ensure(filepath, FILE_MAX, ".svg"); + RNA_string_set(op->ptr, "filepath", filepath); + return true; + } + + return false; +} + +static int wm_gpencil_export_svg_invoke(bContext *C, wmOperator *op, const wmEvent *UNUSED(event)) +{ + set_export_filepath(C, op); + + WM_event_add_fileselect(C, op); + + return OPERATOR_RUNNING_MODAL; +} + +static int wm_gpencil_export_svg_exec(bContext *C, wmOperator *op) +{ + Scene *scene = CTX_data_scene(C); + Object *ob = CTX_data_active_object(C); + + if (!RNA_struct_property_is_set(op->ptr, "filepath")) { + BKE_report(op->reports, RPT_ERROR, "No filename given"); + return OPERATOR_CANCELLED; + } + + ARegion *region = get_invoke_region(C); + if (region == NULL) { + BKE_report(op->reports, RPT_ERROR, "Unable to find valid 3D View area"); + return OPERATOR_CANCELLED; + } + View3D *v3d = get_invoke_view3d(C); + + char filename[FILE_MAX]; + RNA_string_get(op->ptr, "filepath", filename); + + const bool use_fill = RNA_boolean_get(op->ptr, "use_fill"); + const bool use_norm_thickness = RNA_boolean_get(op->ptr, "use_normalized_thickness"); + const eGpencilExportSelect select_mode = RNA_enum_get(op->ptr, "selected_object_type"); + + const bool use_clip_camera = RNA_boolean_get(op->ptr, "use_clip_camera"); + + /* Set flags. */ + int flag = 0; + SET_FLAG_FROM_TEST(flag, use_fill, GP_EXPORT_FILL); + SET_FLAG_FROM_TEST(flag, use_norm_thickness, GP_EXPORT_NORM_THICKNESS); + SET_FLAG_FROM_TEST(flag, use_clip_camera, GP_EXPORT_CLIP_CAMERA); + + GpencilIOParams params = {.C = C, + .region = region, + .v3d = v3d, + .ob = ob, + .mode = GP_EXPORT_TO_SVG, + .frame_start = CFRA, + .frame_end = CFRA, + .frame_cur = CFRA, + .flag = flag, + .scale = 1.0f, + .select_mode = select_mode, + .frame_mode = GP_EXPORT_FRAME_ACTIVE, + .stroke_sample = RNA_float_get(op->ptr, "stroke_sample"), + .resolution = 1.0f}; + + /* Do export. */ + WM_cursor_wait(true); + const bool done = gpencil_io_export(filename, ¶ms); + WM_cursor_wait(false); + + if (!done) { + BKE_report(op->reports, RPT_WARNING, "Unable to export SVG"); + } + + return OPERATOR_FINISHED; +} + +static void ui_gpencil_export_svg_settings(uiLayout *layout, PointerRNA *imfptr) +{ + uiLayout *box, *row; + + uiLayoutSetPropSep(layout, true); + uiLayoutSetPropDecorate(layout, false); + + box = uiLayoutBox(layout); + + row = uiLayoutRow(box, false); + uiItemL(row, IFACE_("Scene Options"), ICON_NONE); + + row = uiLayoutRow(box, false); + uiItemR(row, imfptr, "selected_object_type", 0, NULL, ICON_NONE); + + box = uiLayoutBox(layout); + row = uiLayoutRow(box, false); + uiItemL(row, IFACE_("Export Options"), ICON_NONE); + + uiLayout *col = uiLayoutColumn(box, false); + uiItemR(col, imfptr, "stroke_sample", 0, NULL, ICON_NONE); + uiItemR(col, imfptr, "use_fill", 0, NULL, ICON_NONE); + uiItemR(col, imfptr, "use_normalized_thickness", 0, NULL, ICON_NONE); + uiItemR(col, imfptr, "use_clip_camera", 0, NULL, ICON_NONE); +} + +static void wm_gpencil_export_svg_draw(bContext *UNUSED(C), wmOperator *op) +{ + PointerRNA ptr; + + RNA_pointer_create(NULL, op->type->srna, op->properties, &ptr); + + ui_gpencil_export_svg_settings(op->layout, &ptr); +} + +static bool wm_gpencil_export_svg_poll(bContext *C) +{ + if ((CTX_wm_window(C) == NULL) || (CTX_data_mode_enum(C) != CTX_MODE_OBJECT)) { + return false; + } + + return true; +} + +void WM_OT_gpencil_export_svg(wmOperatorType *ot) +{ + ot->name = "Export to SVG"; + ot->description = "Export grease pencil to SVG"; + ot->idname = "WM_OT_gpencil_export_svg"; + + ot->invoke = wm_gpencil_export_svg_invoke; + ot->exec = wm_gpencil_export_svg_exec; + ot->poll = wm_gpencil_export_svg_poll; + ot->ui = wm_gpencil_export_svg_draw; + ot->check = wm_gpencil_export_svg_common_check; + + WM_operator_properties_filesel(ot, + FILE_TYPE_OBJECT_IO, + FILE_BLENDER, + FILE_SAVE, + WM_FILESEL_FILEPATH | WM_FILESEL_SHOW_PROPS, + FILE_DEFAULTDISPLAY, + FILE_SORT_ALPHA); + + gpencil_export_common_props_definition(ot); + + RNA_def_boolean(ot->srna, + "use_clip_camera", + false, + "Clip Camera", + "Clip drawings to camera size when export in camera view"); +} +#endif + +/* <-------- PDF single frame export. --------> */ +#ifdef WITH_HARU +static bool wm_gpencil_export_pdf_common_check(bContext *UNUSED(C), wmOperator *op) +{ + + char filepath[FILE_MAX]; + RNA_string_get(op->ptr, "filepath", filepath); + + if (!BLI_path_extension_check(filepath, ".pdf")) { + BLI_path_extension_ensure(filepath, FILE_MAX, ".pdf"); + RNA_string_set(op->ptr, "filepath", filepath); + return true; + } + + return false; +} + +static int wm_gpencil_export_pdf_invoke(bContext *C, wmOperator *op, const wmEvent *UNUSED(event)) +{ + set_export_filepath(C, op); + + WM_event_add_fileselect(C, op); + + return OPERATOR_RUNNING_MODAL; +} + +static int wm_gpencil_export_pdf_exec(bContext *C, wmOperator *op) +{ + Scene *scene = CTX_data_scene(C); + Object *ob = CTX_data_active_object(C); + + if (!RNA_struct_property_is_set(op->ptr, "filepath")) { + BKE_report(op->reports, RPT_ERROR, "No filename given"); + return OPERATOR_CANCELLED; + } + + ARegion *region = get_invoke_region(C); + if (region == NULL) { + BKE_report(op->reports, RPT_ERROR, "Unable to find valid 3D View area"); + return OPERATOR_CANCELLED; + } + View3D *v3d = get_invoke_view3d(C); + + char filename[FILE_MAX]; + RNA_string_get(op->ptr, "filepath", filename); + + const bool use_fill = RNA_boolean_get(op->ptr, "use_fill"); + const bool use_norm_thickness = RNA_boolean_get(op->ptr, "use_normalized_thickness"); + const short select_mode = RNA_enum_get(op->ptr, "selected_object_type"); + const short frame_mode = RNA_enum_get(op->ptr, "frame_mode"); + + /* Set flags. */ + int flag = 0; + SET_FLAG_FROM_TEST(flag, use_fill, GP_EXPORT_FILL); + SET_FLAG_FROM_TEST(flag, use_norm_thickness, GP_EXPORT_NORM_THICKNESS); + + GpencilIOParams params = {.C = C, + .region = region, + .v3d = v3d, + .ob = ob, + .mode = GP_EXPORT_TO_PDF, + .frame_start = SFRA, + .frame_end = EFRA, + .frame_cur = CFRA, + .flag = flag, + .scale = 1.0f, + .select_mode = select_mode, + .frame_mode = frame_mode, + .stroke_sample = RNA_float_get(op->ptr, "stroke_sample"), + .resolution = 1.0f}; + + /* Do export. */ + WM_cursor_wait(true); + const bool done = gpencil_io_export(filename, ¶ms); + WM_cursor_wait(false); + + if (!done) { + BKE_report(op->reports, RPT_WARNING, "Unable to export PDF"); + } + + return OPERATOR_FINISHED; +} + +static void ui_gpencil_export_pdf_settings(uiLayout *layout, PointerRNA *imfptr) +{ + uiLayout *box, *row, *col, *sub; + + uiLayoutSetPropSep(layout, true); + uiLayoutSetPropDecorate(layout, false); + + box = uiLayoutBox(layout); + + row = uiLayoutRow(box, false); + uiItemL(row, IFACE_("Scene Options"), ICON_NONE); + + row = uiLayoutRow(box, false); + uiItemR(row, imfptr, "selected_object_type", 0, NULL, ICON_NONE); + + box = uiLayoutBox(layout); + row = uiLayoutRow(box, false); + uiItemL(row, IFACE_("Export Options"), ICON_NONE); + + col = uiLayoutColumn(box, false); + sub = uiLayoutColumn(col, true); + uiItemR(sub, imfptr, "frame_mode", 0, IFACE_("Frame"), ICON_NONE); + + uiLayoutSetPropSep(box, true); + + sub = uiLayoutColumn(col, true); + uiItemR(sub, imfptr, "stroke_sample", 0, NULL, ICON_NONE); + uiItemR(sub, imfptr, "use_fill", 0, NULL, ICON_NONE); + uiItemR(sub, imfptr, "use_normalized_thickness", 0, NULL, ICON_NONE); +} + +static void wm_gpencil_export_pdf_draw(bContext *UNUSED(C), wmOperator *op) +{ + PointerRNA ptr; + + RNA_pointer_create(NULL, op->type->srna, op->properties, &ptr); + + ui_gpencil_export_pdf_settings(op->layout, &ptr); +} + +static bool wm_gpencil_export_pdf_poll(bContext *C) +{ + if ((CTX_wm_window(C) == NULL) || (CTX_data_mode_enum(C) != CTX_MODE_OBJECT)) { + return false; + } + + return true; +} + +void WM_OT_gpencil_export_pdf(wmOperatorType *ot) +{ + ot->name = "Export to PDF"; + ot->description = "Export grease pencil to PDF"; + ot->idname = "WM_OT_gpencil_export_pdf"; + + ot->invoke = wm_gpencil_export_pdf_invoke; + ot->exec = wm_gpencil_export_pdf_exec; + ot->poll = wm_gpencil_export_pdf_poll; + ot->ui = wm_gpencil_export_pdf_draw; + ot->check = wm_gpencil_export_pdf_common_check; + + WM_operator_properties_filesel(ot, + FILE_TYPE_OBJECT_IO, + FILE_BLENDER, + FILE_SAVE, + WM_FILESEL_FILEPATH | WM_FILESEL_SHOW_PROPS, + FILE_DEFAULTDISPLAY, + FILE_SORT_ALPHA); + + static const EnumPropertyItem gpencil_export_frame_items[] = { + {GP_EXPORT_FRAME_ACTIVE, "ACTIVE", 0, "Active", "Include only active frame"}, + {GP_EXPORT_FRAME_SELECTED, "SELECTED", 0, "Selected", "Include selected frames"}, + {0, NULL, 0, NULL, NULL}, + }; + + gpencil_export_common_props_definition(ot); + ot->prop = RNA_def_enum(ot->srna, + "frame_mode", + gpencil_export_frame_items, + GP_EXPORT_ACTIVE, + "Frames", + "Which frames to include in the export"); +} +#endif diff --git a/source/blender/editors/io/io_gpencil_import.c b/source/blender/editors/io/io_gpencil_import.c new file mode 100644 index 00000000000..9768da85940 --- /dev/null +++ b/source/blender/editors/io/io_gpencil_import.c @@ -0,0 +1,195 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * The Original Code is Copyright (C) 2020 Blender Foundation. + * All rights reserved. + */ + +/** \file + * \ingroup editor/io + */ + +#include "BLI_path_util.h" + +#include "DNA_gpencil_types.h" +#include "DNA_space_types.h" + +#include "BKE_context.h" +#include "BKE_gpencil.h" +#include "BKE_report.h" + +#include "BLT_translation.h" + +#include "RNA_access.h" +#include "RNA_define.h" + +#include "UI_interface.h" +#include "UI_resources.h" + +#include "WM_api.h" +#include "WM_types.h" + +#include "DEG_depsgraph.h" +#include "DEG_depsgraph_query.h" + +#include "ED_gpencil.h" + +#include "io_gpencil.h" + +#include "gpencil_io.h" + +/* <-------- SVG single frame import. --------> */ +static bool wm_gpencil_import_svg_common_check(bContext *UNUSED(C), wmOperator *op) +{ + + char filepath[FILE_MAX]; + RNA_string_get(op->ptr, "filepath", filepath); + + if (!BLI_path_extension_check(filepath, ".svg")) { + BLI_path_extension_ensure(filepath, FILE_MAX, ".svg"); + RNA_string_set(op->ptr, "filepath", filepath); + return true; + } + + return false; +} + +static int wm_gpencil_import_svg_invoke(bContext *C, wmOperator *op, const wmEvent *UNUSED(event)) +{ + WM_event_add_fileselect(C, op); + + return OPERATOR_RUNNING_MODAL; +} + +static int wm_gpencil_import_svg_exec(bContext *C, wmOperator *op) +{ + Scene *scene = CTX_data_scene(C); + + if (!RNA_struct_property_is_set(op->ptr, "filepath")) { + BKE_report(op->reports, RPT_ERROR, "No filename given"); + return OPERATOR_CANCELLED; + } + + ARegion *region = get_invoke_region(C); + if (region == NULL) { + BKE_report(op->reports, RPT_ERROR, "Unable to find valid 3D View area"); + return OPERATOR_CANCELLED; + } + View3D *v3d = get_invoke_view3d(C); + + char filename[FILE_MAX]; + RNA_string_get(op->ptr, "filepath", filename); + + /* Set flags. */ + int flag = 0; + + const int resolution = RNA_int_get(op->ptr, "resolution"); + const float scale = RNA_float_get(op->ptr, "scale"); + + GpencilIOParams params = { + .C = C, + .region = region, + .v3d = v3d, + .ob = NULL, + .mode = GP_IMPORT_FROM_SVG, + .frame_start = CFRA, + .frame_end = CFRA, + .frame_cur = CFRA, + .flag = flag, + .scale = scale, + .select_mode = 0, + .frame_mode = 0, + .stroke_sample = 0.0f, + .resolution = resolution, + }; + + /* Do Import. */ + WM_cursor_wait(1); + const bool done = gpencil_io_import(filename, ¶ms); + WM_cursor_wait(0); + + if (!done) { + BKE_report(op->reports, RPT_WARNING, "Unable to import SVG"); + } + + return OPERATOR_FINISHED; +} + +static void ui_gpencil_import_svg_settings(uiLayout *layout, PointerRNA *imfptr) +{ + uiLayoutSetPropSep(layout, true); + uiLayoutSetPropDecorate(layout, false); + uiLayout *col = uiLayoutColumn(layout, false); + uiItemR(col, imfptr, "resolution", 0, NULL, ICON_NONE); + uiItemR(col, imfptr, "scale", 0, NULL, ICON_NONE); +} + +static void wm_gpencil_import_svg_draw(bContext *UNUSED(C), wmOperator *op) +{ + PointerRNA ptr; + RNA_pointer_create(NULL, op->type->srna, op->properties, &ptr); + + ui_gpencil_import_svg_settings(op->layout, &ptr); +} + +static bool wm_gpencil_import_svg_poll(bContext *C) +{ + if ((CTX_wm_window(C) == NULL) || (CTX_data_mode_enum(C) != CTX_MODE_OBJECT)) { + return false; + } + + return true; +} + +void WM_OT_gpencil_import_svg(wmOperatorType *ot) +{ + ot->name = "Import SVG"; + ot->description = "Import SVG into grease pencil"; + ot->idname = "WM_OT_gpencil_import_svg"; + + ot->invoke = wm_gpencil_import_svg_invoke; + ot->exec = wm_gpencil_import_svg_exec; + ot->poll = wm_gpencil_import_svg_poll; + ot->ui = wm_gpencil_import_svg_draw; + ot->check = wm_gpencil_import_svg_common_check; + + WM_operator_properties_filesel(ot, + FILE_TYPE_OBJECT_IO, + FILE_BLENDER, + FILE_OPENFILE, + WM_FILESEL_FILEPATH | WM_FILESEL_RELPATH | WM_FILESEL_SHOW_PROPS, + FILE_DEFAULTDISPLAY, + FILE_SORT_DEFAULT); + + RNA_def_int(ot->srna, + "resolution", + 10, + 1, + 30, + "Resolution", + "Resolution of the generated strokes", + 1, + 20); + + RNA_def_float(ot->srna, + "scale", + 10.0f, + 0.001f, + 100.0f, + "Scale", + "Scale of the final strokes", + 0.001f, + 100.0f); +} diff --git a/source/blender/editors/io/io_gpencil_utils.c b/source/blender/editors/io/io_gpencil_utils.c new file mode 100644 index 00000000000..259a669519a --- /dev/null +++ b/source/blender/editors/io/io_gpencil_utils.c @@ -0,0 +1,64 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * The Original Code is Copyright (C) 2020 Blender Foundation. + * All rights reserved. + */ + +/** \file + * \ingroup editor/io + */ + +#include "DNA_space_types.h" + +#include "BKE_context.h" +#include "BKE_screen.h" + +#include "WM_api.h" + +#include "io_gpencil.h" + +ARegion *get_invoke_region(bContext *C) +{ + bScreen *screen = CTX_wm_screen(C); + if (screen == NULL) { + return NULL; + } + ScrArea *area = BKE_screen_find_big_area(screen, SPACE_VIEW3D, 0); + if (area == NULL) { + return NULL; + } + + ARegion *region = BKE_area_find_region_type(area, RGN_TYPE_WINDOW); + + return region; +} + +View3D *get_invoke_view3d(bContext *C) +{ + bScreen *screen = CTX_wm_screen(C); + if (screen == NULL) { + return NULL; + } + ScrArea *area = BKE_screen_find_big_area(screen, SPACE_VIEW3D, 0); + if (area == NULL) { + return NULL; + } + if (area) { + return area->spacedata.first; + } + + return NULL; +} diff --git a/source/blender/editors/io/io_ops.c b/source/blender/editors/io/io_ops.c index acb511a414d..9fa34a1c55d 100644 --- a/source/blender/editors/io/io_ops.c +++ b/source/blender/editors/io/io_ops.c @@ -38,6 +38,7 @@ #endif #include "io_cache.h" +#include "io_gpencil.h" void ED_operatortypes_io(void) { @@ -54,6 +55,16 @@ void ED_operatortypes_io(void) WM_operatortype_append(WM_OT_usd_export); #endif + WM_operatortype_append(WM_OT_gpencil_import_svg); + +#ifdef WITH_PUGIXML + WM_operatortype_append(WM_OT_gpencil_export_svg); +#endif + +#ifdef WITH_HARU + WM_operatortype_append(WM_OT_gpencil_export_pdf); +#endif + WM_operatortype_append(CACHEFILE_OT_open); WM_operatortype_append(CACHEFILE_OT_reload); } diff --git a/source/blender/editors/space_file/filelist.c b/source/blender/editors/space_file/filelist.c index f5ec9a0e8a1..4c9f80bfa64 100644 --- a/source/blender/editors/space_file/filelist.c +++ b/source/blender/editors/space_file/filelist.c @@ -2543,7 +2543,7 @@ int ED_path_extension_type(const char *path) if (BLI_path_extension_check(path, ".zip")) { return FILE_TYPE_ARCHIVE; } - if (BLI_path_extension_check_n(path, ".obj", ".3ds", ".fbx", ".glb", ".gltf", NULL)) { + if (BLI_path_extension_check_n(path, ".obj", ".3ds", ".fbx", ".glb", ".gltf", ".svg", NULL)) { return FILE_TYPE_OBJECT_IO; } if (BLI_path_extension_check_array(path, imb_ext_image)) { diff --git a/source/blender/io/CMakeLists.txt b/source/blender/io/CMakeLists.txt index 360cacc4360..f11ad7627b9 100644 --- a/source/blender/io/CMakeLists.txt +++ b/source/blender/io/CMakeLists.txt @@ -35,3 +35,5 @@ endif() if(WITH_USD) add_subdirectory(usd) endif() + +add_subdirectory(gpencil) diff --git a/source/blender/io/gpencil/CMakeLists.txt b/source/blender/io/gpencil/CMakeLists.txt new file mode 100644 index 00000000000..f394075cb9a --- /dev/null +++ b/source/blender/io/gpencil/CMakeLists.txt @@ -0,0 +1,99 @@ +# ***** BEGIN GPL LICENSE BLOCK ***** +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License +# as published by the Free Software Foundation; either version 2 +# of the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software Foundation, +# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. +# +# The Original Code is Copyright (C) 2006, Blender Foundation +# All rights reserved. +# ***** END GPL LICENSE BLOCK ***** + +set(INC + . + ../common + ../../blenkernel + ../../blenlib + ../../blenloader + ../../bmesh + ../../depsgraph + ../../editors/include + ../../makesdna + ../../makesrna + ../../windowmanager + ../../../../intern/clog + ../../../../intern/guardedalloc + ../../../../intern/utfconv +) + +set(INC_SYS +) + +set(SRC + intern/gpencil_io_capi.cc + + # This line must be removed if NanoSVG is moved to extern + nanosvg/nanosvg.h + + gpencil_io.h + + intern/gpencil_io_base.h + intern/gpencil_io_base.cc + + intern/gpencil_io_import_base.h + intern/gpencil_io_import_svg.h + intern/gpencil_io_import_base.cc + intern/gpencil_io_import_svg.cc + + intern/gpencil_io_export_base.h +) + +set(LIB + bf_blenkernel + bf_blenlib + bf_io_common +) + +if(WITH_PUGIXML) + list(APPEND SRC + intern/gpencil_io_export_svg.h + intern/gpencil_io_export_svg.cc + ) + list(APPEND INC + ${PUGIXML_INCLUDE_DIR} + ) + list(APPEND LIB + ${PUGIXML_LIBRARIES} + ) + add_definitions(-DWITH_PUGIXML) +endif() + +if(WITH_HARU) + list(APPEND SRC + intern/gpencil_io_export_pdf.h + intern/gpencil_io_export_pdf.cc + ) + list(APPEND INC + ${HARU_INCLUDE_DIRS} + ) + list(APPEND LIB + ${HARU_LIBRARIES} + ) + add_definitions(-DWITH_HARU) +endif() + + +list(APPEND LIB + ${BOOST_LIBRARIES} +) + +blender_add_lib(bf_gpencil "${SRC}" "${INC}" "${INC_SYS}" "${LIB}") diff --git a/source/blender/io/gpencil/gpencil_io.h b/source/blender/io/gpencil/gpencil_io.h new file mode 100644 index 00000000000..f4b2e59f8c5 --- /dev/null +++ b/source/blender/io/gpencil/gpencil_io.h @@ -0,0 +1,92 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * The Original Code is Copyright (C) 2020 Blender Foundation + * All rights reserved. + */ +#pragma once + +/** \file + * \ingroup bgpencil + */ + +#ifdef __cplusplus +extern "C" { +#endif + +struct ARegion; +struct bContext; +struct Object; +struct View3D; + +typedef struct GpencilIOParams { + bContext *C; + ARegion *region; + View3D *v3d; + /** Grease pencil object. */ + Object *ob; + /** Mode (see eGpencilIO_Modes). */ + uint16_t mode; + int32_t frame_start; + int32_t frame_end; + int32_t frame_cur; + uint32_t flag; + float scale; + /** Select mode (see eGpencilExportSelect). */ + uint16_t select_mode; + /** Frame mode (see eGpencilExportFrame). */ + uint16_t frame_mode; + /** Stroke sampling factor. */ + float stroke_sample; + int32_t resolution; +} GpencilIOParams; + +/* GpencilIOParams->flag. */ +typedef enum eGpencilIOParams_Flag { + /* Export Filled strokes. */ + GP_EXPORT_FILL = (1 << 0), + /* Export normalized thickness. */ + GP_EXPORT_NORM_THICKNESS = (1 << 1), + /* Clip camera area. */ + GP_EXPORT_CLIP_CAMERA = (1 << 2), +} eGpencilIOParams_Flag; + +typedef enum eGpencilIO_Modes { + GP_EXPORT_TO_SVG = 0, + GP_EXPORT_TO_PDF = 1, + + GP_IMPORT_FROM_SVG = 2, + /* Add new formats here. */ +} eGpencilIO_Modes; + +/* Object to be exported. */ +typedef enum eGpencilExportSelect { + GP_EXPORT_ACTIVE = 0, + GP_EXPORT_SELECTED = 1, + GP_EXPORT_VISIBLE = 2, +} eGpencilExportSelect; + +/* Framerange to be exported. */ +typedef enum eGpencilExportFrame { + GP_EXPORT_FRAME_ACTIVE = 0, + GP_EXPORT_FRAME_SELECTED = 1, +} eGpencilExportFrame; + +bool gpencil_io_export(const char *filename, struct GpencilIOParams *iparams); +bool gpencil_io_import(const char *filename, struct GpencilIOParams *iparams); + +#ifdef __cplusplus +} +#endif diff --git a/source/blender/io/gpencil/intern/gpencil_io_base.cc b/source/blender/io/gpencil/intern/gpencil_io_base.cc new file mode 100644 index 00000000000..855252e648c --- /dev/null +++ b/source/blender/io/gpencil/intern/gpencil_io_base.cc @@ -0,0 +1,386 @@ + + +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * The Original Code is Copyright (C) 2020 Blender Foundation + * All rights reserved. + */ + +/** \file + * \ingroup bgpencil + */ + +#include "BLI_float2.hh" +#include "BLI_float3.hh" +#include "BLI_float4x4.hh" +#include "BLI_path_util.h" +#include "BLI_span.hh" + +#include "DNA_gpencil_types.h" +#include "DNA_layer_types.h" +#include "DNA_material_types.h" +#include "DNA_scene_types.h" +#include "DNA_screen_types.h" + +#include "BKE_camera.h" +#include "BKE_context.h" +#include "BKE_gpencil.h" +#include "BKE_gpencil_geom.h" +#include "BKE_main.h" +#include "BKE_material.h" + +#include "UI_view2d.h" + +#include "ED_view3d.h" + +#include "DEG_depsgraph.h" +#include "DEG_depsgraph_query.h" + +#include "gpencil_io_base.h" + +using blender::Span; + +namespace blender::io::gpencil { + +/* Constructor. */ +GpencilIO::GpencilIO(const GpencilIOParams *iparams) +{ + params_ = *iparams; + + /* Easy access data. */ + bmain_ = CTX_data_main(params_.C); + depsgraph_ = CTX_data_depsgraph_pointer(params_.C); + scene_ = CTX_data_scene(params_.C); + rv3d_ = (RegionView3D *)params_.region->regiondata; + gpd_ = (params_.ob != nullptr) ? (bGPdata *)params_.ob->data : nullptr; + cfra_ = iparams->frame_cur; + + /* Calculate camera matrix. */ + Object *cam_ob = params_.v3d->camera; + if (cam_ob != nullptr) { + /* Set up parameters. */ + CameraParams params; + BKE_camera_params_init(¶ms); + BKE_camera_params_from_object(¶ms, cam_ob); + + /* Compute matrix, viewplane, .. */ + RenderData *rd = &scene_->r; + BKE_camera_params_compute_viewplane(¶ms, rd->xsch, rd->ysch, rd->xasp, rd->yasp); + BKE_camera_params_compute_matrix(¶ms); + + float viewmat[4][4]; + invert_m4_m4(viewmat, cam_ob->obmat); + + mul_m4_m4m4(persmat_, params.winmat, viewmat); + } + else { + unit_m4(persmat_); + } + + winx_ = params_.region->winx; + winy_ = params_.region->winy; + + /* Camera rectangle. */ + if (rv3d_->persp == RV3D_CAMOB) { + render_x_ = (scene_->r.xsch * scene_->r.size) / 100; + render_y_ = (scene_->r.ysch * scene_->r.size) / 100; + + ED_view3d_calc_camera_border(CTX_data_scene(params_.C), + depsgraph_, + params_.region, + params_.v3d, + rv3d_, + &camera_rect_, + true); + is_camera_ = true; + camera_ratio_ = render_x_ / (camera_rect_.xmax - camera_rect_.xmin); + offset_.x = camera_rect_.xmin; + offset_.y = camera_rect_.ymin; + } + else { + is_camera_ = false; + /* Calc selected object boundbox. Need set initial value to some variables. */ + camera_ratio_ = 1.0f; + offset_.x = 0.0f; + offset_.y = 0.0f; + + selected_objects_boundbox_calc(); + rctf boundbox; + selected_objects_boundbox_get(&boundbox); + + render_x_ = boundbox.xmax - boundbox.xmin; + render_y_ = boundbox.ymax - boundbox.ymin; + offset_.x = boundbox.xmin; + offset_.y = boundbox.ymin; + } +} + +/** Create a list of selected objects sorted from back to front */ +void GpencilIO::create_object_list() +{ + ViewLayer *view_layer = CTX_data_view_layer(params_.C); + + float3 camera_z_axis; + copy_v3_v3(camera_z_axis, rv3d_->viewinv[2]); + ob_list_.clear(); + + LISTBASE_FOREACH (Base *, base, &view_layer->object_bases) { + Object *object = base->object; + + if (object->type != OB_GPENCIL) { + continue; + } + if ((params_.select_mode == GP_EXPORT_ACTIVE) && (params_.ob != object)) { + continue; + } + + if ((params_.select_mode == GP_EXPORT_SELECTED) && ((base->flag & BASE_SELECTED) == 0)) { + continue; + } + + /* Save z-depth from view to sort from back to front. */ + if (is_camera_) { + float camera_z = dot_v3v3(camera_z_axis, object->obmat[3]); + ObjectZ obz = {camera_z, object}; + ob_list_.append(obz); + } + else { + float zdepth = 0; + if (rv3d_) { + if (rv3d_->is_persp) { + zdepth = ED_view3d_calc_zfac(rv3d_, object->obmat[3], nullptr); + } + else { + zdepth = -dot_v3v3(rv3d_->viewinv[2], object->obmat[3]); + } + ObjectZ obz = {zdepth * -1.0f, object}; + ob_list_.append(obz); + } + } + } + /* Sort list of objects from point of view. */ + std::sort(ob_list_.begin(), ob_list_.end(), [](const ObjectZ &obz1, const ObjectZ &obz2) { + return obz1.zdepth < obz2.zdepth; + }); +} + +/** + * Set file input_text full path. + * \param filename: Path of the file provided by save dialog. + */ +void GpencilIO::filename_set(const char *filename) +{ + BLI_strncpy(filename_, filename, FILE_MAX); + BLI_path_abs(filename_, BKE_main_blendfile_path(bmain_)); +} + +/** Convert to screenspace. */ +bool GpencilIO::gpencil_3D_point_to_screen_space(const float3 co, float2 &r_co) +{ + float3 parent_co = diff_mat_ * co; + float2 screen_co; + eV3DProjTest test = (eV3DProjTest)(V3D_PROJ_RET_OK); + if (ED_view3d_project_float_global(params_.region, parent_co, screen_co, test) == + V3D_PROJ_RET_OK) { + if (!ELEM(V2D_IS_CLIPPED, screen_co[0], screen_co[1])) { + copy_v2_v2(r_co, screen_co); + /* Invert X axis. */ + if (invert_axis_[0]) { + r_co[0] = winx_ - r_co[0]; + } + /* Invert Y axis. */ + if (invert_axis_[1]) { + r_co[1] = winy_ - r_co[1]; + } + /* Apply offset and scale. */ + sub_v2_v2(r_co, &offset_.x); + mul_v2_fl(r_co, camera_ratio_); + + return true; + } + } + r_co[0] = V2D_IS_CLIPPED; + r_co[1] = V2D_IS_CLIPPED; + + /* Invert X axis. */ + if (invert_axis_[0]) { + r_co[0] = winx_ - r_co[0]; + } + /* Invert Y axis. */ + if (invert_axis_[1]) { + r_co[1] = winy_ - r_co[1]; + } + + return false; +} + +/** Convert to render space. */ +float2 GpencilIO::gpencil_3D_point_to_render_space(const float3 co) +{ + float3 parent_co = diff_mat_ * co; + mul_m4_v3(persmat_, parent_co); + + parent_co.x = parent_co.x / max_ff(FLT_MIN, parent_co[2]); + parent_co.y = parent_co.y / max_ff(FLT_MIN, parent_co[2]); + + float2 r_co; + r_co.x = (parent_co.x + 1.0f) / 2.0f * (float)render_x_; + r_co.y = (parent_co.y + 1.0f) / 2.0f * (float)render_y_; + + /* Invert X axis. */ + if (invert_axis_[0]) { + r_co.x = (float)render_x_ - r_co.x; + } + /* Invert Y axis. */ + if (invert_axis_[1]) { + r_co.y = (float)render_y_ - r_co.y; + } + + return r_co; +} + +/** Convert to 2D. */ +float2 GpencilIO::gpencil_3D_point_to_2D(const float3 co) +{ + const bool is_camera = (bool)(rv3d_->persp == RV3D_CAMOB); + if (is_camera) { + return gpencil_3D_point_to_render_space(co); + } + float2 result; + gpencil_3D_point_to_screen_space(co, result); + return result; +} + +/** Get radius of point. */ +float GpencilIO::stroke_point_radius_get(bGPDlayer *gpl, bGPDstroke *gps) +{ + bGPDspoint *pt = &gps->points[0]; + const float2 screen_co = gpencil_3D_point_to_2D(&pt->x); + + /* Radius. */ + bGPDstroke *gps_perimeter = BKE_gpencil_stroke_perimeter_from_view( + rv3d_, gpd_, gpl, gps, 3, diff_mat_.values); + + pt = &gps_perimeter->points[0]; + const float2 screen_ex = gpencil_3D_point_to_2D(&pt->x); + + const float2 v1 = screen_co - screen_ex; + float radius = v1.length(); + BKE_gpencil_free_stroke(gps_perimeter); + + return MAX2(radius, 1.0f); +} + +void GpencilIO::prepare_layer_export_matrix(Object *ob, bGPDlayer *gpl) +{ + BKE_gpencil_layer_transform_matrix_get(depsgraph_, ob, gpl, diff_mat_.values); + diff_mat_ = diff_mat_ * float4x4(gpl->layer_invmat); +} + +void GpencilIO::prepare_stroke_export_colors(Object *ob, bGPDstroke *gps) +{ + MaterialGPencilStyle *gp_style = BKE_gpencil_material_settings(ob, gps->mat_nr + 1); + + /* Stroke color. */ + copy_v4_v4(stroke_color_, gp_style->stroke_rgba); + avg_opacity_ = 0; + /* Get average vertex color and apply. */ + float avg_color[4] = {0.0f, 0.0f, 0.0f, 0.0f}; + for (const bGPDspoint &pt : Span(gps->points, gps->totpoints)) { + add_v4_v4(avg_color, pt.vert_color); + avg_opacity_ += pt.strength; + } + + mul_v4_v4fl(avg_color, avg_color, 1.0f / (float)gps->totpoints); + interp_v3_v3v3(stroke_color_, stroke_color_, avg_color, avg_color[3]); + avg_opacity_ /= (float)gps->totpoints; + + /* Fill color. */ + copy_v4_v4(fill_color_, gp_style->fill_rgba); + /* Apply vertex color for fill. */ + interp_v3_v3v3(fill_color_, fill_color_, gps->vert_color_fill, gps->vert_color_fill[3]); +} + +float GpencilIO::stroke_average_opacity_get() +{ + return avg_opacity_; +} + +bool GpencilIO::is_camera_mode() +{ + return is_camera_; +} + +/* Calculate selected strokes boundbox. */ +void GpencilIO::selected_objects_boundbox_calc() +{ + const float gap = 10.0f; + + float2 min, max; + INIT_MINMAX2(min, max); + + for (ObjectZ &obz : ob_list_) { + Object *ob = obz.ob; + /* Use evaluated version to get strokes with modifiers. */ + Object *ob_eval = (Object *)DEG_get_evaluated_id(depsgraph_, &ob->id); + bGPdata *gpd_eval = (bGPdata *)ob_eval->data; + + LISTBASE_FOREACH (bGPDlayer *, gpl, &gpd_eval->layers) { + if (gpl->flag & GP_LAYER_HIDE) { + continue; + } + BKE_gpencil_layer_transform_matrix_get(depsgraph_, ob_eval, gpl, diff_mat_.values); + + bGPDframe *gpf = gpl->actframe; + if (gpf == nullptr) { + continue; + } + + LISTBASE_FOREACH (bGPDstroke *, gps, &gpf->strokes) { + if (gps->totpoints == 0) { + continue; + } + for (const bGPDspoint &pt : MutableSpan(gps->points, gps->totpoints)) { + const float2 screen_co = gpencil_3D_point_to_2D(&pt.x); + minmax_v2v2_v2(min, max, screen_co); + } + } + } + } + /* Add small gap. */ + add_v2_fl(min, gap * -1.0f); + add_v2_fl(max, gap); + + select_boundbox_.xmin = min[0]; + select_boundbox_.ymin = min[1]; + select_boundbox_.xmax = max[0]; + select_boundbox_.ymax = max[1]; +} + +void GpencilIO::selected_objects_boundbox_get(rctf *boundbox) +{ + boundbox->xmin = select_boundbox_.xmin; + boundbox->xmax = select_boundbox_.xmax; + boundbox->ymin = select_boundbox_.ymin; + boundbox->ymax = select_boundbox_.ymax; +} + +void GpencilIO::frame_number_set(const int value) +{ + cfra_ = value; +} + +} // namespace blender::io::gpencil diff --git a/source/blender/io/gpencil/intern/gpencil_io_base.h b/source/blender/io/gpencil/intern/gpencil_io_base.h new file mode 100644 index 00000000000..986221618b7 --- /dev/null +++ b/source/blender/io/gpencil/intern/gpencil_io_base.h @@ -0,0 +1,116 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * The Original Code is Copyright (C) 2020 Blender Foundation + * All rights reserved. + */ +#pragma once + +/** \file + * \ingroup bgpencil + */ + +#include "BLI_float2.hh" +#include "BLI_float3.hh" +#include "BLI_float4x4.hh" +#include "BLI_vector.hh" + +#include "DNA_space_types.h" /* for FILE_MAX */ + +#include "gpencil_io.h" + +struct Depsgraph; +struct Main; +struct Object; +struct RegionView3D; +struct Scene; + +struct bGPdata; +struct bGPDlayer; +struct bGPDstroke; + +using blender::Vector; + +namespace blender::io::gpencil { + +class GpencilIO { + public: + GpencilIO(const GpencilIOParams *iparams); + + void frame_number_set(const int value); + + protected: + GpencilIOParams params_; + + bool invert_axis_[2]; + float4x4 diff_mat_; + char filename_[FILE_MAX]; + + /* Used for sorting objects. */ + struct ObjectZ { + float zdepth; + struct Object *ob; + }; + + /** List of included objects. */ + blender::Vector<ObjectZ> ob_list_; + + /* Data for easy access. */ + struct Depsgraph *depsgraph_; + struct bGPdata *gpd_; + struct Main *bmain_; + struct Scene *scene_; + struct RegionView3D *rv3d_; + + int16_t winx_, winy_; + int16_t render_x_, render_y_; + float camera_ratio_; + rctf camera_rect_; + + float2 offset_; + + int cfra_; + + float stroke_color_[4], fill_color_[4]; + + /* Geometry functions. */ + bool gpencil_3D_point_to_screen_space(const float3 co, float2 &r_co); + float2 gpencil_3D_point_to_render_space(const float3 co); + float2 gpencil_3D_point_to_2D(const float3 co); + + float stroke_point_radius_get(struct bGPDlayer *gpl, struct bGPDstroke *gps); + void create_object_list(); + + bool is_camera_mode(); + + float stroke_average_opacity_get(); + + void prepare_layer_export_matrix(struct Object *ob, struct bGPDlayer *gpl); + void prepare_stroke_export_colors(struct Object *ob, struct bGPDstroke *gps); + + void selected_objects_boundbox_calc(); + void selected_objects_boundbox_get(rctf *boundbox); + void filename_set(const char *filename); + + private: + float avg_opacity_; + bool is_camera_; + rctf select_boundbox_; + + /* Camera matrix. */ + float persmat_[4][4]; +}; + +} // namespace blender::io::gpencil diff --git a/source/blender/io/gpencil/intern/gpencil_io_capi.cc b/source/blender/io/gpencil/intern/gpencil_io_capi.cc new file mode 100644 index 00000000000..34539a66fe8 --- /dev/null +++ b/source/blender/io/gpencil/intern/gpencil_io_capi.cc @@ -0,0 +1,202 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * The Original Code is Copyright (C) 2020 Blender Foundation + * All rights reserved. + */ + +/** \file + * \ingroup bgpencil + */ + +#include <stdio.h> + +#include "BLI_listbase.h" + +#include "DNA_gpencil_types.h" +#include "DNA_screen_types.h" +#include "DNA_space_types.h" + +#include "BKE_context.h" +#include "BKE_gpencil.h" +#include "BKE_main.h" +#include "BKE_scene.h" + +#include "DEG_depsgraph.h" +#include "DEG_depsgraph_query.h" + +#include "../gpencil_io.h" + +#ifdef WITH_HARU +# include "gpencil_io_export_pdf.h" +#endif + +#ifdef WITH_PUGIXML +# include "gpencil_io_export_svg.h" +#endif + +#include "gpencil_io_import_svg.h" + +#ifdef WITH_HARU +using blender::io::gpencil::GpencilExporterPDF; +#endif +#ifdef WITH_PUGIXML +using blender::io::gpencil::GpencilExporterSVG; +#endif +using blender::io::gpencil::GpencilImporterSVG; + +/* Check if frame is included. */ +static bool is_keyframe_included(bGPdata *gpd_, const int32_t framenum, const bool use_selected) +{ + /* Check if exist a frame. */ + LISTBASE_FOREACH (bGPDlayer *, gpl, &gpd_->layers) { + if (gpl->flag & GP_LAYER_HIDE) { + continue; + } + LISTBASE_FOREACH (bGPDframe *, gpf, &gpl->frames) { + if (gpf->framenum == framenum) { + if ((!use_selected) || (use_selected && (gpf->flag & GP_FRAME_SELECT))) { + return true; + } + } + } + } + return false; +} + +/* Import frame. */ +static bool gpencil_io_import_frame(void *in_importer, const GpencilIOParams &iparams) +{ + + bool result = false; + switch (iparams.mode) { + case GP_IMPORT_FROM_SVG: { + GpencilImporterSVG *importer = (GpencilImporterSVG *)in_importer; + result |= importer->read(); + break; + } + /* Add new import formats here. */ + default: + break; + } + + return result; +} + +/* Export frame in PDF. */ +#ifdef WITH_HARU +static bool gpencil_io_export_pdf(Depsgraph *depsgraph, + Scene *scene, + Object *ob, + GpencilExporterPDF *exporter, + const GpencilIOParams *iparams) +{ + bool result = false; + Object *ob_eval_ = (Object *)DEG_get_evaluated_id(depsgraph, &ob->id); + bGPdata *gpd_eval = (bGPdata *)ob_eval_->data; + + exporter->frame_number_set(iparams->frame_cur); + result |= exporter->new_document(); + + const bool use_frame_selected = (iparams->frame_mode == GP_EXPORT_FRAME_SELECTED); + if (use_frame_selected) { + for (int32_t i = iparams->frame_start; i < iparams->frame_end + 1; i++) { + if (!is_keyframe_included(gpd_eval, i, use_frame_selected)) { + continue; + } + + CFRA = i; + BKE_scene_graph_update_for_newframe(depsgraph); + exporter->frame_number_set(i); + exporter->add_newpage(); + exporter->add_body(); + } + result = exporter->write(); + /* Back to original frame. */ + exporter->frame_number_set(iparams->frame_cur); + CFRA = iparams->frame_cur; + BKE_scene_graph_update_for_newframe(depsgraph); + } + else { + exporter->add_newpage(); + exporter->add_body(); + result = exporter->write(); + } + + return result; +} +#endif + +/* Export current frame in SVG. */ +#ifdef WITH_PUGIXML +static bool gpencil_io_export_frame_svg(GpencilExporterSVG *exporter, + const GpencilIOParams *iparams, + const bool newpage, + const bool body, + const bool savepage) +{ + bool result = false; + exporter->frame_number_set(iparams->frame_cur); + if (newpage) { + result |= exporter->add_newpage(); + } + if (body) { + result |= exporter->add_body(); + } + if (savepage) { + result = exporter->write(); + } + return result; +} +#endif + +/* Main import entry point function. */ +bool gpencil_io_import(const char *filename, GpencilIOParams *iparams) +{ + GpencilImporterSVG importer = GpencilImporterSVG(filename, iparams); + + return gpencil_io_import_frame(&importer, *iparams); +} + +/* Main export entry point function. */ +bool gpencil_io_export(const char *filename, GpencilIOParams *iparams) +{ + Depsgraph *depsgraph_ = CTX_data_depsgraph_pointer(iparams->C); + Scene *scene_ = CTX_data_scene(iparams->C); + Object *ob = CTX_data_active_object(iparams->C); + + UNUSED_VARS(depsgraph_, scene_, ob); + + switch (iparams->mode) { +#ifdef WITH_PUGIXML + case GP_EXPORT_TO_SVG: { + GpencilExporterSVG exporter = GpencilExporterSVG(filename, iparams); + return gpencil_io_export_frame_svg(&exporter, iparams, true, true, true); + break; + } +#endif +#ifdef WITH_HARU + case GP_EXPORT_TO_PDF: { + GpencilExporterPDF exporter = GpencilExporterPDF(filename, iparams); + return gpencil_io_export_pdf(depsgraph_, scene_, ob, &exporter, iparams); + break; + } +#endif + /* Add new export formats here. */ + default: + break; + } + return false; +} diff --git a/source/blender/io/gpencil/intern/gpencil_io_export_base.h b/source/blender/io/gpencil/intern/gpencil_io_export_base.h new file mode 100644 index 00000000000..19a24a75fd2 --- /dev/null +++ b/source/blender/io/gpencil/intern/gpencil_io_export_base.h @@ -0,0 +1,38 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * The Original Code is Copyright (C) 2020 Blender Foundation + * All rights reserved. + */ +#pragma once + +/** \file + * \ingroup bgpencil + */ +#include "gpencil_io_base.h" + +namespace blender::io::gpencil { + +class GpencilExporter : public GpencilIO { + + public: + GpencilExporter(const struct GpencilIOParams *iparams) : GpencilIO(iparams){}; + virtual bool write() = 0; + + protected: + private: +}; + +} // namespace blender::io::gpencil diff --git a/source/blender/io/gpencil/intern/gpencil_io_export_pdf.cc b/source/blender/io/gpencil/intern/gpencil_io_export_pdf.cc new file mode 100644 index 00000000000..ba16d635c2d --- /dev/null +++ b/source/blender/io/gpencil/intern/gpencil_io_export_pdf.cc @@ -0,0 +1,311 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * The Original Code is Copyright (C) 2020 Blender Foundation + * All rights reserved. + */ + +/** \file + * \ingroup bgpencil + */ + +#include "BLI_math_vector.h" + +#include "DNA_gpencil_types.h" +#include "DNA_material_types.h" +#include "DNA_object_types.h" +#include "DNA_scene_types.h" +#include "DNA_screen_types.h" +#include "DNA_view3d_types.h" + +#include "BKE_context.h" +#include "BKE_gpencil.h" +#include "BKE_gpencil_geom.h" +#include "BKE_main.h" +#include "BKE_material.h" + +#include "DEG_depsgraph.h" +#include "DEG_depsgraph_query.h" + +#include "ED_gpencil.h" +#include "ED_view3d.h" + +#ifdef WIN32 +# include "utfconv.h" +#endif + +#include "UI_view2d.h" + +#include "gpencil_io.h" +#include "gpencil_io_export_pdf.h" + +namespace blender ::io ::gpencil { + +static void error_handler(HPDF_STATUS error_no, HPDF_STATUS detail_no, void *UNUSED(user_data)) +{ + printf("ERROR: error_no=%04X, detail_no=%u\n", (HPDF_UINT)error_no, (HPDF_UINT)detail_no); +} + +/* Constructor. */ +GpencilExporterPDF::GpencilExporterPDF(const char *filename, const GpencilIOParams *iparams) + : GpencilExporter(iparams) +{ + filename_set(filename); + + invert_axis_[0] = false; + invert_axis_[1] = false; + + pdf_ = nullptr; + page_ = nullptr; + gstate_ = nullptr; +} + +bool GpencilExporterPDF::new_document() +{ + return create_document(); +} + +bool GpencilExporterPDF::add_newpage() +{ + return add_page(); +} + +bool GpencilExporterPDF::add_body() +{ + export_gpencil_layers(); + return true; +} + +bool GpencilExporterPDF::write() +{ + /* Support unicode character paths on Windows. */ + HPDF_STATUS res = 0; + /* TODO: It looks libharu does not support unicode. */ + //#ifdef WIN32 + // char filename_cstr[FILE_MAX]; + // BLI_strncpy(filename_cstr, filename_, FILE_MAX); + // + // UTF16_ENCODE(filename_cstr); + // std::wstring wstr(filename_cstr_16); + // res = HPDF_SaveToFile(pdf_, wstr.c_str()); + // + // UTF16_UN_ENCODE(filename_cstr); + //#else + res = HPDF_SaveToFile(pdf_, filename_); + //#endif + + return (res == 0) ? true : false; +} + +/* Create pdf document. */ +bool GpencilExporterPDF::create_document() +{ + pdf_ = HPDF_New(error_handler, nullptr); + if (!pdf_) { + std::cout << "error: cannot create PdfDoc object\n"; + return false; + } + return true; +} + +/* Add page. */ +bool GpencilExporterPDF::add_page() +{ + /* Add a new page object. */ + page_ = HPDF_AddPage(pdf_); + if (!pdf_) { + std::cout << "error: cannot create PdfPage\n"; + return false; + } + + HPDF_Page_SetWidth(page_, render_x_); + HPDF_Page_SetHeight(page_, render_y_); + + return true; +} + +/* Main layer loop. */ +void GpencilExporterPDF::export_gpencil_layers() +{ + /* If is doing a set of frames, the list of objects can change for each frame. */ + create_object_list(); + + const bool is_normalized = ((params_.flag & GP_EXPORT_NORM_THICKNESS) != 0); + + for (ObjectZ &obz : ob_list_) { + Object *ob = obz.ob; + + /* Use evaluated version to get strokes with modifiers. */ + Object *ob_eval_ = (Object *)DEG_get_evaluated_id(depsgraph_, &ob->id); + bGPdata *gpd_eval = (bGPdata *)ob_eval_->data; + + LISTBASE_FOREACH (bGPDlayer *, gpl, &gpd_eval->layers) { + if (gpl->flag & GP_LAYER_HIDE) { + continue; + } + prepare_layer_export_matrix(ob, gpl); + + bGPDframe *gpf = gpl->actframe; + if ((gpf == nullptr) || (gpf->strokes.first == nullptr)) { + continue; + } + + LISTBASE_FOREACH (bGPDstroke *, gps, &gpf->strokes) { + if (gps->totpoints < 2) { + continue; + } + if (!ED_gpencil_stroke_material_visible(ob, gps)) { + continue; + } + /* Duplicate the stroke to apply any layer thickness change. */ + bGPDstroke *gps_duplicate = BKE_gpencil_stroke_duplicate(gps, true, false); + MaterialGPencilStyle *gp_style = BKE_gpencil_material_settings(ob, + gps_duplicate->mat_nr + 1); + + const bool is_stroke = ((gp_style->flag & GP_MATERIAL_STROKE_SHOW) && + (gp_style->stroke_rgba[3] > GPENCIL_ALPHA_OPACITY_THRESH)); + const bool is_fill = ((gp_style->flag & GP_MATERIAL_FILL_SHOW) && + (gp_style->fill_rgba[3] > GPENCIL_ALPHA_OPACITY_THRESH)); + prepare_stroke_export_colors(ob, gps_duplicate); + + /* Apply layer thickness change. */ + gps_duplicate->thickness += gpl->line_change; + /* Apply object scale to thickness. */ + gps_duplicate->thickness *= mat4_to_scale(ob->obmat); + CLAMP_MIN(gps_duplicate->thickness, 1.0f); + /* Fill. */ + if ((is_fill) && (params_.flag & GP_EXPORT_FILL)) { + /* Fill is exported as polygon for fill and stroke in a different shape. */ + export_stroke_to_polyline(gpl, gps_duplicate, is_stroke, true, false); + } + + /* Stroke. */ + if (is_stroke) { + if (is_normalized) { + export_stroke_to_polyline(gpl, gps_duplicate, is_stroke, false, true); + } + else { + bGPDstroke *gps_perimeter = BKE_gpencil_stroke_perimeter_from_view( + rv3d_, gpd_, gpl, gps_duplicate, 3, diff_mat_.values); + + /* Sample stroke. */ + if (params_.stroke_sample > 0.0f) { + BKE_gpencil_stroke_sample(gpd_eval, gps_perimeter, params_.stroke_sample, false); + } + + export_stroke_to_polyline(gpl, gps_perimeter, is_stroke, false, false); + + BKE_gpencil_free_stroke(gps_perimeter); + } + } + BKE_gpencil_free_stroke(gps_duplicate); + } + } + } +} + +/** + * Export a stroke using polyline or polygon + * \param do_fill: True if the stroke is only fill + */ +void GpencilExporterPDF::export_stroke_to_polyline(bGPDlayer *gpl, + bGPDstroke *gps, + const bool is_stroke, + const bool do_fill, + const bool normalize) +{ + const bool cyclic = ((gps->flag & GP_STROKE_CYCLIC) != 0); + const float avg_pressure = BKE_gpencil_stroke_average_pressure_get(gps); + + /* Get the thickness in pixels using a simple 1 point stroke. */ + bGPDstroke *gps_temp = BKE_gpencil_stroke_duplicate(gps, false, false); + gps_temp->totpoints = 1; + gps_temp->points = (bGPDspoint *)MEM_callocN(sizeof(bGPDspoint), "gp_stroke_points"); + const bGPDspoint *pt_src = &gps->points[0]; + bGPDspoint *pt_dst = &gps_temp->points[0]; + copy_v3_v3(&pt_dst->x, &pt_src->x); + pt_dst->pressure = avg_pressure; + + const float radius = stroke_point_radius_get(gpl, gps_temp); + + BKE_gpencil_free_stroke(gps_temp); + + color_set(gpl, do_fill); + + if (is_stroke && !do_fill) { + HPDF_Page_SetLineJoin(page_, HPDF_ROUND_JOIN); + HPDF_Page_SetLineWidth(page_, MAX2((radius * 2.0f) - gpl->line_change, 1.0f)); + } + + /* Loop all points. */ + for (const int i : IndexRange(gps->totpoints)) { + bGPDspoint *pt = &gps->points[i]; + const float2 screen_co = gpencil_3D_point_to_2D(&pt->x); + if (i == 0) { + HPDF_Page_MoveTo(page_, screen_co.x, screen_co.y); + } + else { + HPDF_Page_LineTo(page_, screen_co.x, screen_co.y); + } + } + /* Close cyclic */ + if (cyclic) { + HPDF_Page_ClosePath(page_); + } + + if (do_fill || !normalize) { + HPDF_Page_Fill(page_); + } + else { + HPDF_Page_Stroke(page_); + } + + HPDF_Page_GRestore(page_); +} + +/** + * Set color + * @param do_fill: True if the stroke is only fill + */ +void GpencilExporterPDF::color_set(bGPDlayer *gpl, const bool do_fill) +{ + const float fill_opacity = fill_color_[3] * gpl->opacity; + const float stroke_opacity = stroke_color_[3] * stroke_average_opacity_get() * gpl->opacity; + + HPDF_Page_GSave(page_); + gstate_ = HPDF_CreateExtGState(pdf_); + + float col[3]; + if (do_fill) { + interp_v3_v3v3(col, fill_color_, gpl->tintcolor, gpl->tintcolor[3]); + linearrgb_to_srgb_v3_v3(col, col); + CLAMP3(col, 0.0f, 1.0f); + + HPDF_ExtGState_SetAlphaFill(gstate_, clamp_f(fill_opacity, 0.0f, 1.0f)); + HPDF_Page_SetRGBFill(page_, col[0], col[1], col[2]); + } + else { + interp_v3_v3v3(col, stroke_color_, gpl->tintcolor, gpl->tintcolor[3]); + linearrgb_to_srgb_v3_v3(col, col); + CLAMP3(col, 0.0f, 1.0f); + + HPDF_ExtGState_SetAlphaFill(gstate_, clamp_f(stroke_opacity, 0.0f, 1.0f)); + HPDF_ExtGState_SetAlphaStroke(gstate_, clamp_f(stroke_opacity, 0.0f, 1.0f)); + HPDF_Page_SetRGBFill(page_, col[0], col[1], col[2]); + HPDF_Page_SetRGBStroke(page_, col[0], col[1], col[2]); + } + HPDF_Page_SetExtGState(page_, gstate_); +} +} // namespace blender::io::gpencil diff --git a/source/blender/io/gpencil/intern/gpencil_io_export_pdf.h b/source/blender/io/gpencil/intern/gpencil_io_export_pdf.h new file mode 100644 index 00000000000..009c05a8b49 --- /dev/null +++ b/source/blender/io/gpencil/intern/gpencil_io_export_pdf.h @@ -0,0 +1,67 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * The Original Code is Copyright (C) 2020 Blender Foundation + * All rights reserved. + */ +#pragma once + +/** \file + * \ingroup bgpencil + */ + +#include "gpencil_io_export_base.h" +#include "hpdf.h" + +struct GpencilIOParams; +struct bGPDlayer; +struct bGPDstroke; + +#define PDF_EXPORTER_NAME "PDF Exporter for Grease Pencil" +#define PDF_EXPORTER_VERSION "v1.0" + +namespace blender::io::gpencil { + +class GpencilExporterPDF : public GpencilExporter { + + public: + GpencilExporterPDF(const char *filename, const struct GpencilIOParams *iparams); + bool new_document(); + bool add_newpage(); + bool add_body(); + bool write(); + + protected: + private: + /* PDF document. */ + HPDF_Doc pdf_; + /* PDF page. */ + HPDF_Page page_; + /* State. */ + HPDF_ExtGState gstate_; + + bool create_document(); + bool add_page(); + void export_gpencil_layers(); + + void export_stroke_to_polyline(bGPDlayer *gpl, + bGPDstroke *gps, + const bool is_stroke, + const bool do_fill, + const bool normalize); + void color_set(bGPDlayer *gpl, const bool do_fill); +}; + +} // namespace blender::io::gpencil diff --git a/source/blender/io/gpencil/intern/gpencil_io_export_svg.cc b/source/blender/io/gpencil/intern/gpencil_io_export_svg.cc new file mode 100644 index 00000000000..89584cd242f --- /dev/null +++ b/source/blender/io/gpencil/intern/gpencil_io_export_svg.cc @@ -0,0 +1,464 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * The Original Code is Copyright (C) 2020 Blender Foundation + * All rights reserved. + */ + +/** \file + * \ingroup bgpencil + */ + +#include "BLI_math_vector.h" +#include "BLI_string.h" +#include "BLI_utildefines.h" + +#include "DNA_gpencil_types.h" +#include "DNA_material_types.h" +#include "DNA_object_types.h" +#include "DNA_scene_types.h" +#include "DNA_screen_types.h" + +#include "BKE_gpencil.h" +#include "BKE_gpencil_geom.h" +#include "BKE_main.h" +#include "BKE_material.h" + +#include "DEG_depsgraph.h" +#include "DEG_depsgraph_query.h" + +#include "ED_gpencil.h" +#include "ED_view3d.h" + +#ifdef WIN32 +# include "utfconv.h" +#endif + +#include "UI_view2d.h" + +#include "gpencil_io.h" +#include "gpencil_io_export_svg.h" + +#include "pugixml.hpp" + +namespace blender ::io ::gpencil { + +/* Constructor. */ +GpencilExporterSVG::GpencilExporterSVG(const char *filename, const GpencilIOParams *iparams) + : GpencilExporter(iparams) +{ + filename_set(filename); + + invert_axis_[0] = false; + invert_axis_[1] = true; +} + +bool GpencilExporterSVG::add_newpage() +{ + create_document_header(); + return true; +} + +bool GpencilExporterSVG::add_body() +{ + export_gpencil_layers(); + return true; +} + +bool GpencilExporterSVG::write() +{ + bool result = true; +/* Support unicode character paths on Windows. */ +#ifdef WIN32 + char filename_cstr[FILE_MAX]; + BLI_strncpy(filename_cstr, filename_, FILE_MAX); + + UTF16_ENCODE(filename_cstr); + std::wstring wstr(filename_cstr_16); + result = main_doc_.save_file(wstr.c_str()); + + UTF16_UN_ENCODE(filename_cstr); +#else + result = main_doc_.save_file(filename_); +#endif + + return result; +} + +/* Create document header and main svg node. */ +void GpencilExporterSVG::create_document_header() +{ + /* Add a custom document declaration node. */ + pugi::xml_node decl = main_doc_.prepend_child(pugi::node_declaration); + decl.append_attribute("version") = "1.0"; + decl.append_attribute("encoding") = "UTF-8"; + + pugi::xml_node comment = main_doc_.append_child(pugi::node_comment); + char txt[128]; + sprintf(txt, " Generator: Blender, %s - %s ", SVG_EXPORTER_NAME, SVG_EXPORTER_VERSION); + comment.set_value(txt); + + pugi::xml_node doctype = main_doc_.append_child(pugi::node_doctype); + doctype.set_value( + "svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\" " + "\"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\""); + + main_node_ = main_doc_.append_child("svg"); + main_node_.append_attribute("version").set_value("1.0"); + main_node_.append_attribute("x").set_value("0px"); + main_node_.append_attribute("y").set_value("0px"); + + std::string width; + std::string height; + + width = std::to_string(render_x_); + height = std::to_string(render_y_); + + main_node_.append_attribute("width").set_value((width + "px").c_str()); + main_node_.append_attribute("height").set_value((height + "px").c_str()); + std::string viewbox = "0 0 " + width + " " + height; + main_node_.append_attribute("viewBox").set_value(viewbox.c_str()); +} + +/* Main layer loop. */ +void GpencilExporterSVG::export_gpencil_layers() +{ + const bool is_clipping = is_camera_mode() && (params_.flag & GP_EXPORT_CLIP_CAMERA) != 0; + + /* If is doing a set of frames, the list of objects can change for each frame. */ + create_object_list(); + + for (ObjectZ &obz : ob_list_) { + Object *ob = obz.ob; + + /* Camera clipping. */ + if (is_clipping) { + pugi::xml_node clip_node = main_node_.append_child("clipPath"); + clip_node.append_attribute("id").set_value(("clip-path" + std::to_string(cfra_)).c_str()); + + add_rect(clip_node, 0, 0, render_x_, render_y_, 0.0f, "#000000"); + } + + frame_node_ = main_node_.append_child("g"); + std::string frametxt = "blender_frame_" + std::to_string(cfra_); + frame_node_.append_attribute("id").set_value(frametxt.c_str()); + + /* Clip area. */ + if (is_clipping) { + frame_node_.append_attribute("clip-path") + .set_value(("url(#clip-path" + std::to_string(cfra_) + ")").c_str()); + } + + pugi::xml_node ob_node = frame_node_.append_child("g"); + + char obtxt[96]; + sprintf(obtxt, "blender_object_%s", ob->id.name + 2); + ob_node.append_attribute("id").set_value(obtxt); + + /* Use evaluated version to get strokes with modifiers. */ + Object *ob_eval_ = (Object *)DEG_get_evaluated_id(depsgraph_, &ob->id); + bGPdata *gpd_eval = (bGPdata *)ob_eval_->data; + + LISTBASE_FOREACH (bGPDlayer *, gpl, &gpd_eval->layers) { + if (gpl->flag & GP_LAYER_HIDE) { + continue; + } + prepare_layer_export_matrix(ob, gpl); + + bGPDframe *gpf = gpl->actframe; + if ((gpf == nullptr) || (gpf->strokes.first == nullptr)) { + continue; + } + + /* Layer node. */ + std::string txt = "Layer: "; + txt.append(gpl->info); + ob_node.append_child(pugi::node_comment).set_value(txt.c_str()); + + pugi::xml_node node_gpl = ob_node.append_child("g"); + node_gpl.append_attribute("id").set_value(gpl->info); + + LISTBASE_FOREACH (bGPDstroke *, gps, &gpf->strokes) { + if (gps->totpoints < 2) { + continue; + } + if (!ED_gpencil_stroke_material_visible(ob, gps)) { + continue; + } + + /* Duplicate the stroke to apply any layer thickness change. */ + bGPDstroke *gps_duplicate = BKE_gpencil_stroke_duplicate(gps, true, false); + + MaterialGPencilStyle *gp_style = BKE_gpencil_material_settings(ob, + gps_duplicate->mat_nr + 1); + + const bool is_stroke = ((gp_style->flag & GP_MATERIAL_STROKE_SHOW) && + (gp_style->stroke_rgba[3] > GPENCIL_ALPHA_OPACITY_THRESH)); + const bool is_fill = ((gp_style->flag & GP_MATERIAL_FILL_SHOW) && + (gp_style->fill_rgba[3] > GPENCIL_ALPHA_OPACITY_THRESH)); + + prepare_stroke_export_colors(ob, gps_duplicate); + + /* Apply layer thickness change. */ + gps_duplicate->thickness += gpl->line_change; + /* Apply object scale to thickness. */ + gps_duplicate->thickness *= mat4_to_scale(ob->obmat); + CLAMP_MIN(gps_duplicate->thickness, 1.0f); + + const bool is_normalized = ((params_.flag & GP_EXPORT_NORM_THICKNESS) != 0) || + BKE_gpencil_stroke_is_pressure_constant(gps); + + /* Fill. */ + if ((is_fill) && (params_.flag & GP_EXPORT_FILL)) { + /* Fill is always exported as polygon because the stroke of the fill is done + * in a different SVG command. */ + export_stroke_to_polyline(gpl, gps_duplicate, node_gpl, is_stroke, true); + } + + /* Stroke. */ + if (is_stroke) { + if (is_normalized) { + export_stroke_to_polyline(gpl, gps_duplicate, node_gpl, is_stroke, false); + } + else { + bGPDstroke *gps_perimeter = BKE_gpencil_stroke_perimeter_from_view( + rv3d_, gpd_, gpl, gps_duplicate, 3, diff_mat_.values); + + /* Sample stroke. */ + if (params_.stroke_sample > 0.0f) { + BKE_gpencil_stroke_sample(gpd_eval, gps_perimeter, params_.stroke_sample, false); + } + + export_stroke_to_path(gpl, gps_perimeter, node_gpl, false); + + BKE_gpencil_free_stroke(gps_perimeter); + } + } + + BKE_gpencil_free_stroke(gps_duplicate); + } + } + } +} + +/** + * Export a stroke using SVG path + * \param node_gpl: Node of the layer. + * \param do_fill: True if the stroke is only fill + */ +void GpencilExporterSVG::export_stroke_to_path(bGPDlayer *gpl, + bGPDstroke *gps, + pugi::xml_node node_gpl, + const bool do_fill) +{ + pugi::xml_node node_gps = node_gpl.append_child("path"); + + float col[3]; + std::string stroke_hex; + if (do_fill) { + node_gps.append_attribute("fill-opacity").set_value(fill_color_[3] * gpl->opacity); + + interp_v3_v3v3(col, fill_color_, gpl->tintcolor, gpl->tintcolor[3]); + } + else { + node_gps.append_attribute("fill-opacity") + .set_value(stroke_color_[3] * stroke_average_opacity_get() * gpl->opacity); + + interp_v3_v3v3(col, stroke_color_, gpl->tintcolor, gpl->tintcolor[3]); + } + + linearrgb_to_srgb_v3_v3(col, col); + stroke_hex = rgb_to_hexstr(col); + + node_gps.append_attribute("fill").set_value(stroke_hex.c_str()); + node_gps.append_attribute("stroke").set_value("none"); + + std::string txt = "M"; + for (const int i : IndexRange(gps->totpoints)) { + if (i > 0) { + txt.append("L"); + } + bGPDspoint &pt = gps->points[i]; + const float2 screen_co = gpencil_3D_point_to_2D(&pt.x); + txt.append(std::to_string(screen_co.x) + "," + std::to_string(screen_co.y)); + } + /* Close patch (cyclic)*/ + if (gps->flag & GP_STROKE_CYCLIC) { + txt.append("z"); + } + + node_gps.append_attribute("d").set_value(txt.c_str()); +} + +/** + * Export a stroke using polyline or polygon + * \param node_gpl: Node of the layer. + * \param do_fill: True if the stroke is only fill + */ +void GpencilExporterSVG::export_stroke_to_polyline(bGPDlayer *gpl, + bGPDstroke *gps, + pugi::xml_node node_gpl, + const bool is_stroke, + const bool do_fill) +{ + const bool cyclic = ((gps->flag & GP_STROKE_CYCLIC) != 0); + const float avg_pressure = BKE_gpencil_stroke_average_pressure_get(gps); + + /* Get the thickness in pixels using a simple 1 point stroke. */ + bGPDstroke *gps_temp = BKE_gpencil_stroke_duplicate(gps, false, false); + gps_temp->totpoints = 1; + gps_temp->points = (bGPDspoint *)MEM_callocN(sizeof(bGPDspoint), "gp_stroke_points"); + bGPDspoint *pt_src = &gps->points[0]; + bGPDspoint *pt_dst = &gps_temp->points[0]; + copy_v3_v3(&pt_dst->x, &pt_src->x); + pt_dst->pressure = avg_pressure; + + const float radius = stroke_point_radius_get(gpl, gps_temp); + + BKE_gpencil_free_stroke(gps_temp); + + pugi::xml_node node_gps = node_gpl.append_child(do_fill || cyclic ? "polygon" : "polyline"); + + color_string_set(gpl, gps, node_gps, do_fill); + + if (is_stroke && !do_fill) { + node_gps.append_attribute("stroke-width").set_value((radius * 2.0f) - gpl->line_change); + } + + std::string txt; + for (const int i : IndexRange(gps->totpoints)) { + if (i > 0) { + txt.append(" "); + } + bGPDspoint *pt = &gps->points[i]; + const float2 screen_co = gpencil_3D_point_to_2D(&pt->x); + txt.append(std::to_string(screen_co.x) + "," + std::to_string(screen_co.y)); + } + + node_gps.append_attribute("points").set_value(txt.c_str()); +} + +/** + * Set color SVG string for stroke + * \param node_gps: Stroke node + * @param do_fill: True if the stroke is only fill + */ +void GpencilExporterSVG::color_string_set(bGPDlayer *gpl, + bGPDstroke *gps, + pugi::xml_node node_gps, + const bool do_fill) +{ + const bool round_cap = (gps->caps[0] == GP_STROKE_CAP_ROUND || + gps->caps[1] == GP_STROKE_CAP_ROUND); + + float col[3]; + if (do_fill) { + interp_v3_v3v3(col, fill_color_, gpl->tintcolor, gpl->tintcolor[3]); + linearrgb_to_srgb_v3_v3(col, col); + std::string stroke_hex = rgb_to_hexstr(col); + node_gps.append_attribute("fill").set_value(stroke_hex.c_str()); + node_gps.append_attribute("stroke").set_value("none"); + node_gps.append_attribute("fill-opacity").set_value(fill_color_[3] * gpl->opacity); + } + else { + interp_v3_v3v3(col, stroke_color_, gpl->tintcolor, gpl->tintcolor[3]); + linearrgb_to_srgb_v3_v3(col, col); + std::string stroke_hex = rgb_to_hexstr(col); + node_gps.append_attribute("stroke").set_value(stroke_hex.c_str()); + node_gps.append_attribute("stroke-opacity") + .set_value(stroke_color_[3] * stroke_average_opacity_get() * gpl->opacity); + + if (gps->totpoints > 1) { + node_gps.append_attribute("fill").set_value("none"); + node_gps.append_attribute("stroke-linecap").set_value(round_cap ? "round" : "square"); + } + else { + node_gps.append_attribute("fill").set_value(stroke_hex.c_str()); + node_gps.append_attribute("fill-opacity").set_value(fill_color_[3] * gpl->opacity); + } + } +} + +/** + * Create a SVG rectangle + * \param node: Parent node + * \param x: X location + * \param y: Y location + * \param width: width of the recntagle + * \param height: Height of the rectangle + * \param thickness: Thickness of the line + * \param hexcolor: Color of the line + */ +void GpencilExporterSVG::add_rect(pugi::xml_node node, + float x, + float y, + float width, + float height, + float thickness, + std::string hexcolor) +{ + pugi::xml_node rect_node = node.append_child("rect"); + rect_node.append_attribute("x").set_value(x); + rect_node.append_attribute("y").set_value(y); + rect_node.append_attribute("width").set_value(width); + rect_node.append_attribute("height").set_value(height); + rect_node.append_attribute("fill").set_value("none"); + if (thickness > 0.0f) { + rect_node.append_attribute("stroke").set_value(hexcolor.c_str()); + rect_node.append_attribute("stroke-width").set_value(thickness); + } +} + +/** + * Create SVG text + * \param node: Parent node + * \param x: X location + * \param y: Y location + * \param text: Text to include + * \param size: Size of th etext + * \param hexcolor: Color of the text + */ +void GpencilExporterSVG::add_text(pugi::xml_node node, + float x, + float y, + std::string text, + const float size, + std::string hexcolor) +{ + pugi::xml_node nodetxt = node.append_child("text"); + + nodetxt.append_attribute("x").set_value(x); + nodetxt.append_attribute("y").set_value(y); + // nodetxt.append_attribute("font-family").set_value("'system-ui'"); + nodetxt.append_attribute("font-size").set_value(size); + nodetxt.append_attribute("fill").set_value(hexcolor.c_str()); + nodetxt.text().set(text.c_str()); +} + +/** Convert a color to Hex value (#FFFFFF). */ +std::string GpencilExporterSVG::rgb_to_hexstr(float color[3]) +{ + uint8_t r = color[0] * 255.0f; + uint8_t g = color[1] * 255.0f; + uint8_t b = color[2] * 255.0f; + char hex_string[20]; + sprintf(hex_string, "#%02X%02X%02X", r, g, b); + + std::string hexstr = hex_string; + + return hexstr; +} + +} // namespace blender::io::gpencil diff --git a/source/blender/io/gpencil/intern/gpencil_io_export_svg.h b/source/blender/io/gpencil/intern/gpencil_io_export_svg.h new file mode 100644 index 00000000000..f564736c16e --- /dev/null +++ b/source/blender/io/gpencil/intern/gpencil_io_export_svg.h @@ -0,0 +1,89 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * The Original Code is Copyright (C) 2020 Blender Foundation + * All rights reserved. + */ +#pragma once + +/** \file + * \ingroup bgpencil + */ +#include "BLI_path_util.h" + +#include "gpencil_io_export_base.h" +#include "pugixml.hpp" + +struct GpencilIOParams; + +#define SVG_EXPORTER_NAME "SVG Export for Grease Pencil" +#define SVG_EXPORTER_VERSION "v1.0" + +namespace blender::io::gpencil { + +class GpencilExporterSVG : public GpencilExporter { + + public: + GpencilExporterSVG(const char *filename, const struct GpencilIOParams *iparams); + bool add_newpage(); + bool add_body(); + bool write(); + + protected: + static void add_rect(pugi::xml_node node, + float x, + float y, + float width, + float height, + float thickness, + std::string hexcolor); + + static void add_text(pugi::xml_node node, + float x, + float y, + std::string text, + const float size, + std::string hexcolor); + + private: + /* XML doc. */ + pugi::xml_document main_doc_; + /* Main document node. */ + pugi::xml_node main_node_; + /** Frame node */ + pugi::xml_node frame_node_; + void create_document_header(); + void export_gpencil_layers(); + + void export_stroke_to_path(struct bGPDlayer *gpl, + struct bGPDstroke *gps, + pugi::xml_node node_gpl, + const bool is_fill); + + void export_stroke_to_polyline(struct bGPDlayer *gpl, + struct bGPDstroke *gps, + pugi::xml_node node_gpl, + const bool is_stroke, + const bool is_fill); + + void color_string_set(struct bGPDlayer *gpl, + struct bGPDstroke *gps, + pugi::xml_node node_gps, + const bool is_fill); + + std::string rgb_to_hexstr(float color[3]); +}; + +} // namespace blender::io::gpencil diff --git a/source/blender/io/gpencil/intern/gpencil_io_import_base.cc b/source/blender/io/gpencil/intern/gpencil_io_import_base.cc new file mode 100644 index 00000000000..b49b4c969ad --- /dev/null +++ b/source/blender/io/gpencil/intern/gpencil_io_import_base.cc @@ -0,0 +1,85 @@ + + +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * The Original Code is Copyright (C) 2020 Blender Foundation + * All rights reserved. + */ + +/** \file + * \ingroup bgpencil + */ +#include "BLI_math_vector.h" + +#include "DNA_material_types.h" +#include "DNA_object_types.h" +#include "DNA_scene_types.h" + +#include "BKE_gpencil.h" +#include "BKE_material.h" + +#include "ED_gpencil.h" + +#include "gpencil_io_import_base.h" + +#include "pugixml.hpp" + +namespace blender::io::gpencil { + +/* Constructor. */ +GpencilImporter::GpencilImporter(const GpencilIOParams *iparams) : GpencilIO(iparams) +{ + /* Nothing to do yet */ +} + +Object *GpencilImporter::create_object() +{ + const float *cur = scene_->cursor.location; + ushort local_view_bits = (params_.v3d && params_.v3d->localvd) ? params_.v3d->local_view_uuid : + (ushort)0; + Object *ob_gpencil = ED_gpencil_add_object(params_.C, cur, local_view_bits); + + return ob_gpencil; +} + +int32_t GpencilImporter::create_material(const char *name, const bool stroke, const bool fill) +{ + const float default_stroke_color[4] = {0.0f, 0.0f, 0.0f, 1.0f}; + const float default_fill_color[4] = {0.5f, 0.5f, 0.5f, 1.0f}; + int32_t mat_index = BKE_gpencil_material_find_index_by_name_prefix(params_.ob, name); + /* Stroke and Fill material. */ + if (mat_index == -1) { + int32_t new_idx; + Material *mat_gp = BKE_gpencil_object_material_new(bmain_, params_.ob, name, &new_idx); + MaterialGPencilStyle *gp_style = mat_gp->gp_style; + gp_style->flag &= ~GP_MATERIAL_STROKE_SHOW; + gp_style->flag &= ~GP_MATERIAL_FILL_SHOW; + + copy_v4_v4(gp_style->stroke_rgba, default_stroke_color); + copy_v4_v4(gp_style->fill_rgba, default_fill_color); + if (stroke) { + gp_style->flag |= GP_MATERIAL_STROKE_SHOW; + } + if (fill) { + gp_style->flag |= GP_MATERIAL_FILL_SHOW; + } + mat_index = params_.ob->totcol - 1; + } + + return mat_index; +} + +} // namespace blender::io::gpencil diff --git a/source/blender/io/gpencil/intern/gpencil_io_import_base.h b/source/blender/io/gpencil/intern/gpencil_io_import_base.h new file mode 100644 index 00000000000..efe6264e4e9 --- /dev/null +++ b/source/blender/io/gpencil/intern/gpencil_io_import_base.h @@ -0,0 +1,41 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * The Original Code is Copyright (C) 2020 Blender Foundation + * All rights reserved. + */ +#pragma once + +/** \file + * \ingroup bgpencil + */ +#include "gpencil_io_base.h" + +namespace blender::io::gpencil { + +class GpencilImporter : public GpencilIO { + + public: + GpencilImporter(const struct GpencilIOParams *iparams); + virtual bool read() = 0; + + protected: + struct Object *create_object(); + int32_t create_material(const char *name, const bool stroke, const bool fill); + + private: +}; + +} // namespace blender::io::gpencil diff --git a/source/blender/io/gpencil/intern/gpencil_io_import_svg.cc b/source/blender/io/gpencil/intern/gpencil_io_import_svg.cc new file mode 100644 index 00000000000..7f450477ac2 --- /dev/null +++ b/source/blender/io/gpencil/intern/gpencil_io_import_svg.cc @@ -0,0 +1,253 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * The Original Code is Copyright (C) 2020 Blender Foundation + * All rights reserved. + */ + +/** \file + * \ingroup bgpencil + */ + +#include "BLI_float3.hh" +#include "BLI_math.h" +#include "BLI_span.hh" + +#include "DNA_gpencil_types.h" + +#include "BKE_gpencil.h" +#include "BKE_gpencil_geom.h" + +#include "DEG_depsgraph.h" +#include "DEG_depsgraph_query.h" + +#include "ED_gpencil.h" + +#include "gpencil_io.h" +#include "gpencil_io_import_svg.h" + +/* Custom flags for NanoSVG. */ +#define NANOSVG_ALL_COLOR_KEYWORDS +#define NANOSVG_IMPLEMENTATION + +#include "nanosvg/nanosvg.h" + +using blender::MutableSpan; + +namespace blender::io::gpencil { + +/* Constructor. */ +GpencilImporterSVG::GpencilImporterSVG(const char *filename, const GpencilIOParams *iparams) + : GpencilImporter(iparams) +{ + filename_set(filename); +} + +bool GpencilImporterSVG::read() +{ + bool result = true; + NSVGimage *svg_data = nullptr; + svg_data = nsvgParseFromFile(filename_, "mm", 96.0f); + if (svg_data == nullptr) { + std::cout << " Could not open SVG.\n "; + return false; + } + + /* Create grease pencil object. */ + params_.ob = create_object(); + if (params_.ob == nullptr) { + std::cout << "Unable to create new object.\n"; + if (svg_data) { + nsvgDelete(svg_data); + } + + return false; + } + gpd_ = (bGPdata *)params_.ob->data; + + /* Grease pencil is rotated 90 degrees in X axis by default. */ + float matrix[4][4]; + const float3 scale = float3(params_.scale); + unit_m4(matrix); + rotate_m4(matrix, 'X', DEG2RADF(-90.0f)); + rescale_m4(matrix, scale); + + /* Loop all shapes. */ + char prv_id[70] = {"*"}; + int prefix = 0; + for (NSVGshape *shape = svg_data->shapes; shape; shape = shape->next) { + char *layer_id = (shape->id_parent[0] == '\0') ? BLI_sprintfN("Layer_%03d", prefix) : + BLI_sprintfN("%s", shape->id_parent); + if (!STREQ(prv_id, layer_id)) { + prefix++; + MEM_freeN(layer_id); + layer_id = (shape->id_parent[0] == '\0') ? BLI_sprintfN("Layer_%03d", prefix) : + BLI_sprintfN("%s", shape->id_parent); + strcpy(prv_id, layer_id); + } + + /* Check if the layer exist and create if needed. */ + bGPDlayer *gpl = (bGPDlayer *)BLI_findstring( + &gpd_->layers, layer_id, offsetof(bGPDlayer, info)); + if (gpl == nullptr) { + gpl = BKE_gpencil_layer_addnew(gpd_, layer_id, true); + /* Disable lights. */ + gpl->flag &= ~GP_LAYER_USE_LIGHTS; + } + MEM_freeN(layer_id); + + /* Check frame. */ + bGPDframe *gpf = BKE_gpencil_layer_frame_get(gpl, cfra_, GP_GETFRAME_ADD_NEW); + /* Create materials. */ + bool is_stroke = (bool)shape->stroke.type; + bool is_fill = (bool)shape->fill.type; + if ((!is_stroke) && (!is_fill)) { + is_stroke = true; + } + + /* Create_shape materials. */ + const char *const mat_names[] = {"Stroke", "Fill"}; + int index = 0; + if ((is_stroke) && (is_fill)) { + index = 0; + is_fill = false; + } + else if ((!is_stroke) && (is_fill)) { + index = 1; + } + int32_t mat_index = create_material(mat_names[index], is_stroke, is_fill); + + /* Loop all paths to create the stroke data. */ + for (NSVGpath *path = shape->paths; path; path = path->next) { + create_stroke(gpd_, gpf, shape, path, mat_index, matrix); + } + } + + /* Free SVG memory. */ + nsvgDelete(svg_data); + + /* Calculate bounding box and move all points to new origin center. */ + float gp_center[3]; + BKE_gpencil_centroid_3d(gpd_, gp_center); + + LISTBASE_FOREACH (bGPDlayer *, gpl, &gpd_->layers) { + LISTBASE_FOREACH (bGPDframe *, gpf, &gpl->frames) { + LISTBASE_FOREACH (bGPDstroke *, gps, &gpf->strokes) { + for (bGPDspoint &pt : MutableSpan(gps->points, gps->totpoints)) { + sub_v3_v3(&pt.x, gp_center); + } + } + } + } + + return result; +} + +void GpencilImporterSVG::create_stroke(bGPdata *gpd, + bGPDframe *gpf, + NSVGshape *shape, + NSVGpath *path, + const int32_t mat_index, + const float matrix[4][4]) +{ + const bool is_stroke = (bool)shape->stroke.type; + const bool is_fill = (bool)shape->fill.type; + + const int edges = params_.resolution; + const float step = 1.0f / (float)(edges - 1); + + const int totpoints = (path->npts / 3) * params_.resolution; + + bGPDstroke *gps = BKE_gpencil_stroke_new(mat_index, totpoints, 1.0f); + BLI_addtail(&gpf->strokes, gps); + + if (path->closed == '1') { + gps->flag |= GP_STROKE_CYCLIC; + } + if (is_stroke) { + gps->thickness = shape->strokeWidth * params_.scale; + } + /* Apply Fill vertex color. */ + if (is_fill) { + NSVGpaint fill = shape->fill; + convert_color(fill.color, gps->vert_color_fill); + gps->fill_opacity_fac = gps->vert_color_fill[3]; + gps->vert_color_fill[3] = 1.0f; + } + + int start_index = 0; + for (int i = 0; i < path->npts - 1; i += 3) { + float *p = &path->pts[i * 2]; + float a = 0.0f; + for (int v = 0; v < edges; v++) { + bGPDspoint *pt = &gps->points[start_index]; + pt->strength = shape->opacity; + pt->pressure = 1.0f; + pt->z = 0.0f; + /* TODO: (antoniov) Can be improved loading curve data instead of loading strokes. */ + interp_v2_v2v2v2v2_cubic(&pt->x, &p[0], &p[2], &p[4], &p[6], a); + + /* Scale from milimeters. */ + mul_v3_fl(&pt->x, 0.001f); + mul_m4_v3(matrix, &pt->x); + + /* Apply color to vertex color. */ + if (is_fill) { + NSVGpaint fill = shape->fill; + convert_color(fill.color, pt->vert_color); + } + if (is_stroke) { + NSVGpaint stroke = shape->stroke; + convert_color(stroke.color, pt->vert_color); + gps->fill_opacity_fac = pt->vert_color[3]; + } + pt->vert_color[3] = 1.0f; + + a += step; + start_index++; + } + } + + /* Cleanup and recalculate geometry. */ + BKE_gpencil_stroke_merge_distance(gpd, gpf, gps, 0.001f, true); + BKE_gpencil_stroke_geometry_update(gpd, gps); +} + +/* Unpack internal NanoSVG color. */ +static void unpack_nano_color(const unsigned int pack, float r_col[4]) +{ + unsigned char rgb_u[4]; + + rgb_u[0] = ((pack) >> 0) & 0xFF; + rgb_u[1] = ((pack) >> 8) & 0xFF; + rgb_u[2] = ((pack) >> 16) & 0xFF; + rgb_u[3] = ((pack) >> 24) & 0xFF; + + r_col[0] = (float)rgb_u[0] / 255.0f; + r_col[1] = (float)rgb_u[1] / 255.0f; + r_col[2] = (float)rgb_u[2] / 255.0f; + r_col[3] = (float)rgb_u[3] / 255.0f; +} + +void GpencilImporterSVG::convert_color(const int32_t color, float r_linear_rgba[4]) +{ + float rgba[4]; + unpack_nano_color(color, rgba); + + srgb_to_linearrgb_v3_v3(r_linear_rgba, rgba); + r_linear_rgba[3] = rgba[3]; +} + +} // namespace blender::io::gpencil diff --git a/source/blender/io/gpencil/intern/gpencil_io_import_svg.h b/source/blender/io/gpencil/intern/gpencil_io_import_svg.h new file mode 100644 index 00000000000..6a34ec8423b --- /dev/null +++ b/source/blender/io/gpencil/intern/gpencil_io_import_svg.h @@ -0,0 +1,56 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * The Original Code is Copyright (C) 2020 Blender Foundation + * All rights reserved. + */ +#pragma once + +/** \file + * \ingroup bgpencil + */ +#include "gpencil_io_import_base.h" + +struct GpencilIOParams; +struct NSVGshape; +struct NSVGpath; +struct bGPdata; +struct bGPDframe; + +#define SVG_IMPORTER_NAME "SVG Import for Grease Pencil" +#define SVG_IMPORTER_VERSION "v1.0" + +namespace blender::io::gpencil { + +class GpencilImporterSVG : public GpencilImporter { + + public: + GpencilImporterSVG(const char *filename, const struct GpencilIOParams *iparams); + + bool read(); + + protected: + private: + void create_stroke(struct bGPdata *gpd_, + struct bGPDframe *gpf, + struct NSVGshape *shape, + struct NSVGpath *path, + const int32_t mat_index, + const float matrix[4][4]); + + void convert_color(const int32_t color, float r_linear_rgba[4]); +}; + +} // namespace blender::io::gpencil diff --git a/source/blender/io/gpencil/nanosvg/nanosvg.h b/source/blender/io/gpencil/nanosvg/nanosvg.h new file mode 100644 index 00000000000..1009d684f7c --- /dev/null +++ b/source/blender/io/gpencil/nanosvg/nanosvg.h @@ -0,0 +1,3313 @@ +/* + * Copyright (c) 2013-14 Mikko Mononen memon@inside.org + * + * This software is provided 'as-is', without any express or implied + * warranty. In no event will the authors be held liable for any damages + * arising from the use of this software. + * + * Permission is granted to anyone to use this software for any purpose, + * including commercial applications, and to alter it and redistribute it + * freely, subject to the following restrictions: + * + * 1. The origin of this software must not be misrepresented; you must not + * claim that you wrote the original software. If you use this software + * in a product, an acknowledgment in the product documentation would be + * appreciated but is not required. + * 2. Altered source versions must be plainly marked as such, and must not be + * misrepresented as being the original software. + * 3. This notice may not be removed or altered from any source distribution. + * + * The SVG parser is based on Anti-Grain Geometry 2.4 SVG example + * Copyright (C) 2002-2004 Maxim Shemanarev (McSeem) (http://www.antigrain.com/) + * + * Arc calculation code based on canvg (https://code.google.com/p/canvg/) + * + * Bounding box calculation based on + * http://blog.hackers-cafe.net/2009/06/how-to-calculate-bezier-curves-bounding.html + * + * This is a modified version for Blender used by importers. + * + */ + +#ifndef NANOSVG_H +#define NANOSVG_H + +#ifndef NANOSVG_CPLUSPLUS +# ifdef __cplusplus +extern "C" { +# endif +#endif + +// NanoSVG is a simple stupid single-header-file SVG parse. The output of the parser is a list of +// cubic bezier shapes. +// +// The library suits well for anything from rendering scalable icons in your editor application to +// prototyping a game. +// +// NanoSVG supports a wide range of SVG features, but something may be missing, feel free to create +// a pull request! +// +// The shapes in the SVG images are transformed by the viewBox and converted to specified units. +// That is, you should get the same looking data as your designed in your favorite app. +// +// NanoSVG can return the paths in few different units. For example if you want to render an image, +// you may choose to get the paths in pixels, or if you are feeding the data into a CNC-cutter, you +// may want to use millimeters. +// +// The units passed to NanoSVG should be one of: 'px', 'pt', 'pc' 'mm', 'cm', or 'in'. +// DPI (dots-per-inch) controls how the unit conversion is done. +// +// If you don't know or care about the units stuff, "px" and 96 should get you going. + +/* Example Usage: + // Load SVG + NSVGimage* image; + image = nsvgParseFromFile("test.svg", "px", 96); + printf("size: %f x %f\n", image->width, image->height); + // Use... + for (NSVGshape *shape = image->shapes; shape != NULL; shape = shape->next) { + for (NSVGpath *path = shape->paths; path != NULL; path = path->next) { + for (int i = 0; i < path->npts-1; i += 3) { + float* p = &path->pts[i*2]; + drawCubicBez(p[0],p[1], p[2],p[3], p[4],p[5], p[6],p[7]); + } + } + } + // Delete + nsvgDelete(image); +*/ + +enum NSVGpaintType { + NSVG_PAINT_NONE = 0, + NSVG_PAINT_COLOR = 1, + NSVG_PAINT_LINEAR_GRADIENT = 2, + NSVG_PAINT_RADIAL_GRADIENT = 3 +}; + +enum NSVGspreadType { NSVG_SPREAD_PAD = 0, NSVG_SPREAD_REFLECT = 1, NSVG_SPREAD_REPEAT = 2 }; + +enum NSVGlineJoin { NSVG_JOIN_MITER = 0, NSVG_JOIN_ROUND = 1, NSVG_JOIN_BEVEL = 2 }; + +enum NSVGlineCap { NSVG_CAP_BUTT = 0, NSVG_CAP_ROUND = 1, NSVG_CAP_SQUARE = 2 }; + +enum NSVGfillRule { NSVG_FILLRULE_NONZERO = 0, NSVG_FILLRULE_EVENODD = 1 }; + +enum NSVGflags { NSVG_FLAGS_VISIBLE = 0x01 }; + +typedef struct NSVGgradientStop { + unsigned int color; + float offset; +} NSVGgradientStop; + +typedef struct NSVGgradient { + float xform[6]; + char spread; + float fx, fy; + int nstops; + NSVGgradientStop stops[1]; +} NSVGgradient; + +typedef struct NSVGpaint { + char type; + union { + unsigned int color; + NSVGgradient *gradient; + }; +} NSVGpaint; + +typedef struct NSVGpath { + float *pts; // Cubic bezier points: x0,y0, [cpx1,cpx1,cpx2,cpy2,x1,y1], ... + int npts; // Total number of bezier points. + char closed; // Flag indicating if shapes should be treated as closed. + float bounds[4]; // Tight bounding box of the shape [minx,miny,maxx,maxy]. + struct NSVGpath *next; // Pointer to next path, or NULL if last element. +} NSVGpath; + +typedef struct NSVGshape { + char id[64]; // Optional 'id' attr of the shape or its group + /* Blender: Parent ID used for layer creation. */ + char id_parent[64]; + NSVGpaint fill; // Fill paint + NSVGpaint stroke; // Stroke paint + float opacity; // Opacity of the shape. + float strokeWidth; // Stroke width (scaled). + float strokeDashOffset; // Stroke dash offset (scaled). + float strokeDashArray[8]; // Stroke dash array (scaled). + char strokeDashCount; // Number of dash values in dash array. + char strokeLineJoin; // Stroke join type. + char strokeLineCap; // Stroke cap type. + float miterLimit; // Miter limit + char fillRule; // Fill rule, see NSVGfillRule. + unsigned char flags; // Logical or of NSVG_FLAGS_* flags + float bounds[4]; // Tight bounding box of the shape [minx,miny,maxx,maxy]. + NSVGpath *paths; // Linked list of paths in the image. + struct NSVGshape *next; // Pointer to next shape, or NULL if last element. +} NSVGshape; + +typedef struct NSVGimage { + float width; // Width of the image. + float height; // Height of the image. + NSVGshape *shapes; // Linked list of shapes in the image. +} NSVGimage; + +// Parses SVG file from a file, returns SVG image as paths. +NSVGimage *nsvgParseFromFile(const char *filename, const char *units, float dpi); + +// Parses SVG file from a null terminated string, returns SVG image as paths. +// Important note: changes the string. +NSVGimage *nsvgParse(char *input, const char *units, float dpi); + +// Duplicates a path. +NSVGpath *nsvgDuplicatePath(NSVGpath *p); + +// Deletes an image. +void nsvgDelete(NSVGimage *image); + +#ifndef NANOSVG_CPLUSPLUS +# ifdef __cplusplus +} +# endif +#endif + +#endif // NANOSVG_H + +#ifdef NANOSVG_IMPLEMENTATION + +#include <math.h> +#include <stdlib.h> +#include <string.h> + +#define NSVG_PI (3.14159265358979323846264338327f) +#define NSVG_KAPPA90 \ + (0.5522847493f) // Length proportional to radius of a cubic bezier handle for 90deg arcs. + +#define NSVG_ALIGN_MIN 0 +#define NSVG_ALIGN_MID 1 +#define NSVG_ALIGN_MAX 2 +#define NSVG_ALIGN_NONE 0 +#define NSVG_ALIGN_MEET 1 +#define NSVG_ALIGN_SLICE 2 + +#define NSVG_NOTUSED(v) \ + do { \ + (void)(1 ? (void)0 : ((void)(v))); \ + } while (0) +#define NSVG_RGB(r, g, b) (((unsigned int)r) | ((unsigned int)g << 8) | ((unsigned int)b << 16)) + +#ifdef _MSC_VER +# pragma warning(disable : 4996) // Switch off security warnings +# pragma warning(disable : 4100) // Switch off unreferenced formal parameter warnings +# ifdef __cplusplus +# define NSVG_INLINE inline +# else +# define NSVG_INLINE +# endif +#else +# define NSVG_INLINE inline +#endif + +static int nsvg__isspace(char c) +{ + return strchr(" \t\n\v\f\r", c) != 0; +} + +static int nsvg__isdigit(char c) +{ + return c >= '0' && c <= '9'; +} + +static NSVG_INLINE float nsvg__minf(float a, float b) +{ + return a < b ? a : b; +} +static NSVG_INLINE float nsvg__maxf(float a, float b) +{ + return a > b ? a : b; +} + +// Simple XML parser + +#define NSVG_XML_TAG 1 +#define NSVG_XML_CONTENT 2 +#define NSVG_XML_MAX_ATTRIBS 256 + +static void nsvg__parseContent(char *s, void (*contentCb)(void *ud, const char *s), void *ud) +{ + // Trim start white spaces + while (*s && nsvg__isspace(*s)) + s++; + if (!*s) + return; + + if (contentCb) + (*contentCb)(ud, s); +} + +static void nsvg__parseElement(char *s, + void (*startelCb)(void *ud, const char *el, const char **attr), + void (*endelCb)(void *ud, const char *el), + void *ud) +{ + const char *attr[NSVG_XML_MAX_ATTRIBS]; + int nattr = 0; + char *name; + int start = 0; + int end = 0; + char quote; + + // Skip white space after the '<' + while (*s && nsvg__isspace(*s)) + s++; + + // Check if the tag is end tag + if (*s == '/') { + s++; + end = 1; + } + else { + start = 1; + } + + // Skip comments, data and preprocessor stuff. + if (!*s || *s == '?' || *s == '!') + return; + + // Get tag name + name = s; + while (*s && !nsvg__isspace(*s)) + s++; + if (*s) { + *s++ = '\0'; + } + + // Get attribs + while (!end && *s && nattr < NSVG_XML_MAX_ATTRIBS - 3) { + char *name = NULL; + char *value = NULL; + + // Skip white space before the attrib name + while (*s && nsvg__isspace(*s)) + s++; + if (!*s) + break; + if (*s == '/') { + end = 1; + break; + } + name = s; + // Find end of the attrib name. + while (*s && !nsvg__isspace(*s) && *s != '=') + s++; + if (*s) { + *s++ = '\0'; + } + // Skip until the beginning of the value. + while (*s && *s != '\"' && *s != '\'') + s++; + if (!*s) + break; + quote = *s; + s++; + // Store value and find the end of it. + value = s; + while (*s && *s != quote) + s++; + if (*s) { + *s++ = '\0'; + } + + // Store only well formed attributes + if (name && value) { + attr[nattr++] = name; + attr[nattr++] = value; + } + } + + // List terminator + attr[nattr++] = 0; + attr[nattr++] = 0; + + // Call callbacks. + if (start && startelCb) + (*startelCb)(ud, name, attr); + if (end && endelCb) + (*endelCb)(ud, name); +} + +static int nsvg__parseXML(char *input, + void (*startelCb)(void *ud, const char *el, const char **attr), + void (*endelCb)(void *ud, const char *el), + void (*contentCb)(void *ud, const char *s), + void *ud) +{ + char *s = input; + char *mark = s; + int state = NSVG_XML_CONTENT; + while (*s) { + if (*s == '<' && state == NSVG_XML_CONTENT) { + // Start of a tag + *s++ = '\0'; + nsvg__parseContent(mark, contentCb, ud); + mark = s; + state = NSVG_XML_TAG; + } + else if (*s == '>' && state == NSVG_XML_TAG) { + // Start of a content or new tag. + *s++ = '\0'; + nsvg__parseElement(mark, startelCb, endelCb, ud); + mark = s; + state = NSVG_XML_CONTENT; + } + else { + s++; + } + } + + return 1; +} + +/* Simple SVG parser. */ + +#define NSVG_MAX_ATTR 128 +#define NSVG_MAX_BREADCRUMB 5 + +enum NSVGgradientUnits { NSVG_USER_SPACE = 0, NSVG_OBJECT_SPACE = 1 }; + +#define NSVG_MAX_DASHES 8 + +enum NSVGunits { + NSVG_UNITS_USER, + NSVG_UNITS_PX, + NSVG_UNITS_PT, + NSVG_UNITS_PC, + NSVG_UNITS_MM, + NSVG_UNITS_CM, + NSVG_UNITS_IN, + NSVG_UNITS_PERCENT, + NSVG_UNITS_EM, + NSVG_UNITS_EX +}; + +typedef struct NSVGcoordinate { + float value; + int units; +} NSVGcoordinate; + +typedef struct NSVGlinearData { + NSVGcoordinate x1, y1, x2, y2; +} NSVGlinearData; + +typedef struct NSVGradialData { + NSVGcoordinate cx, cy, r, fx, fy; +} NSVGradialData; + +typedef struct NSVGgradientData { + char id[64]; + char ref[64]; + char type; + union { + NSVGlinearData linear; + NSVGradialData radial; + }; + char spread; + char units; + float xform[6]; + int nstops; + NSVGgradientStop *stops; + struct NSVGgradientData *next; +} NSVGgradientData; + +typedef struct NSVGattrib { + char id[64]; + float xform[6]; + unsigned int fillColor; + unsigned int strokeColor; + float opacity; + float fillOpacity; + float strokeOpacity; + char fillGradient[64]; + char strokeGradient[64]; + float strokeWidth; + float strokeDashOffset; + float strokeDashArray[NSVG_MAX_DASHES]; + int strokeDashCount; + char strokeLineJoin; + char strokeLineCap; + float miterLimit; + char fillRule; + float fontSize; + unsigned int stopColor; + float stopOpacity; + float stopOffset; + char hasFill; + char hasStroke; + char visible; +} NSVGattrib; + +typedef struct NSVGparser { + NSVGattrib attr[NSVG_MAX_ATTR]; + int attrHead; + float *pts; + int npts; + int cpts; + NSVGpath *plist; + NSVGimage *image; + NSVGgradientData *gradients; + NSVGshape *shapesTail; + float viewMinx, viewMiny, viewWidth, viewHeight; + int alignX, alignY, alignType; + float dpi; + char pathFlag; + char defsFlag; + /** Blender breadscrum for layers. */ + char breadcrumb[NSVG_MAX_BREADCRUMB][64]; + /** Blender number of elements in breadscrum. */ + int breadcrumb_len; +} NSVGparser; + +static void nsvg__xformIdentity(float *t) +{ + t[0] = 1.0f; + t[1] = 0.0f; + t[2] = 0.0f; + t[3] = 1.0f; + t[4] = 0.0f; + t[5] = 0.0f; +} + +static void nsvg__xformSetTranslation(float *t, float tx, float ty) +{ + t[0] = 1.0f; + t[1] = 0.0f; + t[2] = 0.0f; + t[3] = 1.0f; + t[4] = tx; + t[5] = ty; +} + +static void nsvg__xformSetScale(float *t, float sx, float sy) +{ + t[0] = sx; + t[1] = 0.0f; + t[2] = 0.0f; + t[3] = sy; + t[4] = 0.0f; + t[5] = 0.0f; +} + +static void nsvg__xformSetSkewX(float *t, float a) +{ + t[0] = 1.0f; + t[1] = 0.0f; + t[2] = tanf(a); + t[3] = 1.0f; + t[4] = 0.0f; + t[5] = 0.0f; +} + +static void nsvg__xformSetSkewY(float *t, float a) +{ + t[0] = 1.0f; + t[1] = tanf(a); + t[2] = 0.0f; + t[3] = 1.0f; + t[4] = 0.0f; + t[5] = 0.0f; +} + +static void nsvg__xformSetRotation(float *t, float a) +{ + float cs = cosf(a), sn = sinf(a); + t[0] = cs; + t[1] = sn; + t[2] = -sn; + t[3] = cs; + t[4] = 0.0f; + t[5] = 0.0f; +} + +static void nsvg__xformMultiply(float *t, float *s) +{ + float t0 = t[0] * s[0] + t[1] * s[2]; + float t2 = t[2] * s[0] + t[3] * s[2]; + float t4 = t[4] * s[0] + t[5] * s[2] + s[4]; + t[1] = t[0] * s[1] + t[1] * s[3]; + t[3] = t[2] * s[1] + t[3] * s[3]; + t[5] = t[4] * s[1] + t[5] * s[3] + s[5]; + t[0] = t0; + t[2] = t2; + t[4] = t4; +} + +static void nsvg__xformInverse(float *inv, float *t) +{ + double invdet, det = (double)t[0] * t[3] - (double)t[2] * t[1]; + if (det > -1e-6 && det < 1e-6) { + nsvg__xformIdentity(t); + return; + } + invdet = 1.0 / det; + inv[0] = (float)(t[3] * invdet); + inv[2] = (float)(-t[2] * invdet); + inv[4] = (float)(((double)t[2] * t[5] - (double)t[3] * t[4]) * invdet); + inv[1] = (float)(-t[1] * invdet); + inv[3] = (float)(t[0] * invdet); + inv[5] = (float)(((double)t[1] * t[4] - (double)t[0] * t[5]) * invdet); +} + +static void nsvg__xformPremultiply(float *t, float *s) +{ + float s2[6]; + memcpy(s2, s, sizeof(float) * 6); + nsvg__xformMultiply(s2, t); + memcpy(t, s2, sizeof(float) * 6); +} + +static void nsvg__xformPoint(float *dx, float *dy, float x, float y, float *t) +{ + *dx = x * t[0] + y * t[2] + t[4]; + *dy = x * t[1] + y * t[3] + t[5]; +} + +static void nsvg__xformVec(float *dx, float *dy, float x, float y, float *t) +{ + *dx = x * t[0] + y * t[2]; + *dy = x * t[1] + y * t[3]; +} + +#define NSVG_EPSILON (1e-12) + +static int nsvg__ptInBounds(float *pt, float *bounds) +{ + return pt[0] >= bounds[0] && pt[0] <= bounds[2] && pt[1] >= bounds[1] && pt[1] <= bounds[3]; +} + +static double nsvg__evalBezier(double t, double p0, double p1, double p2, double p3) +{ + double it = 1.0 - t; + return it * it * it * p0 + 3.0 * it * it * t * p1 + 3.0 * it * t * t * p2 + t * t * t * p3; +} + +static void nsvg__curveBounds(float *bounds, float *curve) +{ + int i, j, count; + double roots[2], a, b, c, b2ac, t, v; + float *v0 = &curve[0]; + float *v1 = &curve[2]; + float *v2 = &curve[4]; + float *v3 = &curve[6]; + + // Start the bounding box by end points + bounds[0] = nsvg__minf(v0[0], v3[0]); + bounds[1] = nsvg__minf(v0[1], v3[1]); + bounds[2] = nsvg__maxf(v0[0], v3[0]); + bounds[3] = nsvg__maxf(v0[1], v3[1]); + + // Bezier curve fits inside the convex hull of it's control points. + // If control points are inside the bounds, we're done. + if (nsvg__ptInBounds(v1, bounds) && nsvg__ptInBounds(v2, bounds)) + return; + + // Add bezier curve inflection points in X and Y. + for (i = 0; i < 2; i++) { + a = -3.0 * v0[i] + 9.0 * v1[i] - 9.0 * v2[i] + 3.0 * v3[i]; + b = 6.0 * v0[i] - 12.0 * v1[i] + 6.0 * v2[i]; + c = 3.0 * v1[i] - 3.0 * v0[i]; + count = 0; + if (fabs(a) < NSVG_EPSILON) { + if (fabs(b) > NSVG_EPSILON) { + t = -c / b; + if (t > NSVG_EPSILON && t < 1.0 - NSVG_EPSILON) + roots[count++] = t; + } + } + else { + b2ac = b * b - 4.0 * c * a; + if (b2ac > NSVG_EPSILON) { + t = (-b + sqrt(b2ac)) / (2.0 * a); + if (t > NSVG_EPSILON && t < 1.0 - NSVG_EPSILON) + roots[count++] = t; + t = (-b - sqrt(b2ac)) / (2.0 * a); + if (t > NSVG_EPSILON && t < 1.0 - NSVG_EPSILON) + roots[count++] = t; + } + } + for (j = 0; j < count; j++) { + v = nsvg__evalBezier(roots[j], v0[i], v1[i], v2[i], v3[i]); + bounds[0 + i] = nsvg__minf(bounds[0 + i], (float)v); + bounds[2 + i] = nsvg__maxf(bounds[2 + i], (float)v); + } + } +} + +static NSVGparser *nsvg__createParser() +{ + NSVGparser *p; + p = (NSVGparser *)malloc(sizeof(NSVGparser)); + if (p == NULL) + goto error; + memset(p, 0, sizeof(NSVGparser)); + + p->image = (NSVGimage *)malloc(sizeof(NSVGimage)); + if (p->image == NULL) + goto error; + memset(p->image, 0, sizeof(NSVGimage)); + + // Init style + nsvg__xformIdentity(p->attr[0].xform); + memset(p->attr[0].id, 0, sizeof p->attr[0].id); + p->attr[0].fillColor = NSVG_RGB(0, 0, 0); + p->attr[0].strokeColor = NSVG_RGB(0, 0, 0); + p->attr[0].opacity = 1; + p->attr[0].fillOpacity = 1; + p->attr[0].strokeOpacity = 1; + p->attr[0].stopOpacity = 1; + p->attr[0].strokeWidth = 1; + p->attr[0].strokeLineJoin = NSVG_JOIN_MITER; + p->attr[0].strokeLineCap = NSVG_CAP_BUTT; + p->attr[0].miterLimit = 4; + p->attr[0].fillRule = NSVG_FILLRULE_NONZERO; + p->attr[0].hasFill = 1; + p->attr[0].visible = 1; + + return p; + +error: + if (p) { + if (p->image) + free(p->image); + free(p); + } + return NULL; +} + +static void nsvg__deletePaths(NSVGpath *path) +{ + while (path) { + NSVGpath *next = path->next; + if (path->pts != NULL) + free(path->pts); + free(path); + path = next; + } +} + +static void nsvg__deletePaint(NSVGpaint *paint) +{ + if (paint->type == NSVG_PAINT_LINEAR_GRADIENT || paint->type == NSVG_PAINT_RADIAL_GRADIENT) + free(paint->gradient); +} + +static void nsvg__deleteGradientData(NSVGgradientData *grad) +{ + NSVGgradientData *next; + while (grad != NULL) { + next = grad->next; + free(grad->stops); + free(grad); + grad = next; + } +} + +static void nsvg__deleteParser(NSVGparser *p) +{ + if (p != NULL) { + nsvg__deletePaths(p->plist); + nsvg__deleteGradientData(p->gradients); + nsvgDelete(p->image); + free(p->pts); + free(p); + } +} + +static void nsvg__resetPath(NSVGparser *p) +{ + p->npts = 0; +} + +static void nsvg__addPoint(NSVGparser *p, float x, float y) +{ + if (p->npts + 1 > p->cpts) { + p->cpts = p->cpts ? p->cpts * 2 : 8; + p->pts = (float *)realloc(p->pts, p->cpts * 2 * sizeof(float)); + if (!p->pts) + return; + } + p->pts[p->npts * 2 + 0] = x; + p->pts[p->npts * 2 + 1] = y; + p->npts++; +} + +static void nsvg__moveTo(NSVGparser *p, float x, float y) +{ + if (p->npts > 0) { + p->pts[(p->npts - 1) * 2 + 0] = x; + p->pts[(p->npts - 1) * 2 + 1] = y; + } + else { + nsvg__addPoint(p, x, y); + } +} + +static void nsvg__lineTo(NSVGparser *p, float x, float y) +{ + float px, py, dx, dy; + if (p->npts > 0) { + px = p->pts[(p->npts - 1) * 2 + 0]; + py = p->pts[(p->npts - 1) * 2 + 1]; + dx = x - px; + dy = y - py; + nsvg__addPoint(p, px + dx / 3.0f, py + dy / 3.0f); + nsvg__addPoint(p, x - dx / 3.0f, y - dy / 3.0f); + nsvg__addPoint(p, x, y); + } +} + +static void nsvg__cubicBezTo( + NSVGparser *p, float cpx1, float cpy1, float cpx2, float cpy2, float x, float y) +{ + if (p->npts > 0) { + nsvg__addPoint(p, cpx1, cpy1); + nsvg__addPoint(p, cpx2, cpy2); + nsvg__addPoint(p, x, y); + } +} + +static NSVGattrib *nsvg__getAttr(NSVGparser *p) +{ + return &p->attr[p->attrHead]; +} + +static void nsvg__pushAttr(NSVGparser *p) +{ + if (p->attrHead < NSVG_MAX_ATTR - 1) { + p->attrHead++; + memcpy(&p->attr[p->attrHead], &p->attr[p->attrHead - 1], sizeof(NSVGattrib)); + } +} + +static void nsvg__popAttr(NSVGparser *p) +{ + if (p->attrHead > 0) + p->attrHead--; +} + +static float nsvg__actualOrigX(NSVGparser *p) +{ + return p->viewMinx; +} + +static float nsvg__actualOrigY(NSVGparser *p) +{ + return p->viewMiny; +} + +static float nsvg__actualWidth(NSVGparser *p) +{ + return p->viewWidth; +} + +static float nsvg__actualHeight(NSVGparser *p) +{ + return p->viewHeight; +} + +static float nsvg__actualLength(NSVGparser *p) +{ + float w = nsvg__actualWidth(p), h = nsvg__actualHeight(p); + return sqrtf(w * w + h * h) / sqrtf(2.0f); +} + +static float nsvg__convertToPixels(NSVGparser *p, NSVGcoordinate c, float orig, float length) +{ + NSVGattrib *attr = nsvg__getAttr(p); + switch (c.units) { + case NSVG_UNITS_USER: + return c.value; + case NSVG_UNITS_PX: + return c.value; + case NSVG_UNITS_PT: + return c.value / 72.0f * p->dpi; + case NSVG_UNITS_PC: + return c.value / 6.0f * p->dpi; + case NSVG_UNITS_MM: + return c.value / 25.4f * p->dpi; + case NSVG_UNITS_CM: + return c.value / 2.54f * p->dpi; + case NSVG_UNITS_IN: + return c.value * p->dpi; + case NSVG_UNITS_EM: + return c.value * attr->fontSize; + case NSVG_UNITS_EX: + return c.value * attr->fontSize * 0.52f; // x-height of Helvetica. + case NSVG_UNITS_PERCENT: + return orig + c.value / 100.0f * length; + default: + return c.value; + } + return c.value; +} + +static NSVGgradientData *nsvg__findGradientData(NSVGparser *p, const char *id) +{ + NSVGgradientData *grad = p->gradients; + if (id == NULL || *id == '\0') + return NULL; + while (grad != NULL) { + if (strcmp(grad->id, id) == 0) + return grad; + grad = grad->next; + } + return NULL; +} + +static NSVGgradient *nsvg__createGradient(NSVGparser *p, + const char *id, + const float *localBounds, + char *paintType) +{ + NSVGattrib *attr = nsvg__getAttr(p); + NSVGgradientData *data = NULL; + NSVGgradientData *ref = NULL; + NSVGgradientStop *stops = NULL; + NSVGgradient *grad; + float ox, oy, sw, sh, sl; + int nstops = 0; + int refIter; + + data = nsvg__findGradientData(p, id); + if (data == NULL) + return NULL; + + // TODO: use ref to fill in all unset values too. + ref = data; + refIter = 0; + while (ref != NULL) { + NSVGgradientData *nextRef = NULL; + if (stops == NULL && ref->stops != NULL) { + stops = ref->stops; + nstops = ref->nstops; + break; + } + nextRef = nsvg__findGradientData(p, ref->ref); + if (nextRef == ref) + break; // prevent infite loops on malformed data + ref = nextRef; + refIter++; + if (refIter > 32) + break; // prevent infite loops on malformed data + } + if (stops == NULL) + return NULL; + + grad = (NSVGgradient *)malloc(sizeof(NSVGgradient) + sizeof(NSVGgradientStop) * (nstops - 1)); + if (grad == NULL) + return NULL; + + // The shape width and height. + if (data->units == NSVG_OBJECT_SPACE) { + ox = localBounds[0]; + oy = localBounds[1]; + sw = localBounds[2] - localBounds[0]; + sh = localBounds[3] - localBounds[1]; + } + else { + ox = nsvg__actualOrigX(p); + oy = nsvg__actualOrigY(p); + sw = nsvg__actualWidth(p); + sh = nsvg__actualHeight(p); + } + sl = sqrtf(sw * sw + sh * sh) / sqrtf(2.0f); + + if (data->type == NSVG_PAINT_LINEAR_GRADIENT) { + float x1, y1, x2, y2, dx, dy; + x1 = nsvg__convertToPixels(p, data->linear.x1, ox, sw); + y1 = nsvg__convertToPixels(p, data->linear.y1, oy, sh); + x2 = nsvg__convertToPixels(p, data->linear.x2, ox, sw); + y2 = nsvg__convertToPixels(p, data->linear.y2, oy, sh); + // Calculate transform aligned to the line + dx = x2 - x1; + dy = y2 - y1; + grad->xform[0] = dy; + grad->xform[1] = -dx; + grad->xform[2] = dx; + grad->xform[3] = dy; + grad->xform[4] = x1; + grad->xform[5] = y1; + } + else { + float cx, cy, fx, fy, r; + cx = nsvg__convertToPixels(p, data->radial.cx, ox, sw); + cy = nsvg__convertToPixels(p, data->radial.cy, oy, sh); + fx = nsvg__convertToPixels(p, data->radial.fx, ox, sw); + fy = nsvg__convertToPixels(p, data->radial.fy, oy, sh); + r = nsvg__convertToPixels(p, data->radial.r, 0, sl); + // Calculate transform aligned to the circle + grad->xform[0] = r; + grad->xform[1] = 0; + grad->xform[2] = 0; + grad->xform[3] = r; + grad->xform[4] = cx; + grad->xform[5] = cy; + grad->fx = fx / r; + grad->fy = fy / r; + } + + nsvg__xformMultiply(grad->xform, data->xform); + nsvg__xformMultiply(grad->xform, attr->xform); + + grad->spread = data->spread; + memcpy(grad->stops, stops, nstops * sizeof(NSVGgradientStop)); + grad->nstops = nstops; + + *paintType = data->type; + + return grad; +} + +static float nsvg__getAverageScale(float *t) +{ + float sx = sqrtf(t[0] * t[0] + t[2] * t[2]); + float sy = sqrtf(t[1] * t[1] + t[3] * t[3]); + return (sx + sy) * 0.5f; +} + +static void nsvg__getLocalBounds(float *bounds, NSVGshape *shape, float *xform) +{ + NSVGpath *path; + float curve[4 * 2], curveBounds[4]; + int i, first = 1; + for (path = shape->paths; path != NULL; path = path->next) { + nsvg__xformPoint(&curve[0], &curve[1], path->pts[0], path->pts[1], xform); + for (i = 0; i < path->npts - 1; i += 3) { + nsvg__xformPoint( + &curve[2], &curve[3], path->pts[(i + 1) * 2], path->pts[(i + 1) * 2 + 1], xform); + nsvg__xformPoint( + &curve[4], &curve[5], path->pts[(i + 2) * 2], path->pts[(i + 2) * 2 + 1], xform); + nsvg__xformPoint( + &curve[6], &curve[7], path->pts[(i + 3) * 2], path->pts[(i + 3) * 2 + 1], xform); + nsvg__curveBounds(curveBounds, curve); + if (first) { + bounds[0] = curveBounds[0]; + bounds[1] = curveBounds[1]; + bounds[2] = curveBounds[2]; + bounds[3] = curveBounds[3]; + first = 0; + } + else { + bounds[0] = nsvg__minf(bounds[0], curveBounds[0]); + bounds[1] = nsvg__minf(bounds[1], curveBounds[1]); + bounds[2] = nsvg__maxf(bounds[2], curveBounds[2]); + bounds[3] = nsvg__maxf(bounds[3], curveBounds[3]); + } + curve[0] = curve[6]; + curve[1] = curve[7]; + } + } +} + +static void nsvg__addShape(NSVGparser *p) +{ + NSVGattrib *attr = nsvg__getAttr(p); + float scale = 1.0f; + NSVGshape *shape; + NSVGpath *path; + int i; + + if (p->plist == NULL) + return; + + shape = (NSVGshape *)malloc(sizeof(NSVGshape)); + if (shape == NULL) + goto error; + memset(shape, 0, sizeof(NSVGshape)); + + memcpy(shape->id, attr->id, sizeof shape->id); + /* Copy parent id from breadcrumb. */ + if (p->breadcrumb_len > 0) { + memcpy(shape->id_parent, p->breadcrumb[0], sizeof shape->id_parent); + } + else { + memcpy(shape->id_parent, attr->id, sizeof shape->id_parent); + } + + scale = nsvg__getAverageScale(attr->xform); + shape->strokeWidth = attr->strokeWidth * scale; + shape->strokeDashOffset = attr->strokeDashOffset * scale; + shape->strokeDashCount = (char)attr->strokeDashCount; + for (i = 0; i < attr->strokeDashCount; i++) + shape->strokeDashArray[i] = attr->strokeDashArray[i] * scale; + shape->strokeLineJoin = attr->strokeLineJoin; + shape->strokeLineCap = attr->strokeLineCap; + shape->miterLimit = attr->miterLimit; + shape->fillRule = attr->fillRule; + shape->opacity = attr->opacity; + + shape->paths = p->plist; + p->plist = NULL; + + // Calculate shape bounds + shape->bounds[0] = shape->paths->bounds[0]; + shape->bounds[1] = shape->paths->bounds[1]; + shape->bounds[2] = shape->paths->bounds[2]; + shape->bounds[3] = shape->paths->bounds[3]; + for (path = shape->paths->next; path != NULL; path = path->next) { + shape->bounds[0] = nsvg__minf(shape->bounds[0], path->bounds[0]); + shape->bounds[1] = nsvg__minf(shape->bounds[1], path->bounds[1]); + shape->bounds[2] = nsvg__maxf(shape->bounds[2], path->bounds[2]); + shape->bounds[3] = nsvg__maxf(shape->bounds[3], path->bounds[3]); + } + + // Set fill + if (attr->hasFill == 0) { + shape->fill.type = NSVG_PAINT_NONE; + } + else if (attr->hasFill == 1) { + shape->fill.type = NSVG_PAINT_COLOR; + shape->fill.color = attr->fillColor; + shape->fill.color |= (unsigned int)(attr->fillOpacity * 255) << 24; + } + else if (attr->hasFill == 2) { + float inv[6], localBounds[4]; + nsvg__xformInverse(inv, attr->xform); + nsvg__getLocalBounds(localBounds, shape, inv); + shape->fill.gradient = nsvg__createGradient( + p, attr->fillGradient, localBounds, &shape->fill.type); + if (shape->fill.gradient == NULL) { + shape->fill.type = NSVG_PAINT_NONE; + } + } + + // Set stroke + if (attr->hasStroke == 0) { + shape->stroke.type = NSVG_PAINT_NONE; + } + else if (attr->hasStroke == 1) { + shape->stroke.type = NSVG_PAINT_COLOR; + shape->stroke.color = attr->strokeColor; + shape->stroke.color |= (unsigned int)(attr->strokeOpacity * 255) << 24; + } + else if (attr->hasStroke == 2) { + float inv[6], localBounds[4]; + nsvg__xformInverse(inv, attr->xform); + nsvg__getLocalBounds(localBounds, shape, inv); + shape->stroke.gradient = nsvg__createGradient( + p, attr->strokeGradient, localBounds, &shape->stroke.type); + if (shape->stroke.gradient == NULL) + shape->stroke.type = NSVG_PAINT_NONE; + } + + // Set flags + shape->flags = (attr->visible ? NSVG_FLAGS_VISIBLE : 0x00); + + // Add to tail + if (p->image->shapes == NULL) + p->image->shapes = shape; + else + p->shapesTail->next = shape; + p->shapesTail = shape; + + return; + +error: + if (shape) + free(shape); +} + +static void nsvg__addPath(NSVGparser *p, char closed) +{ + NSVGattrib *attr = nsvg__getAttr(p); + NSVGpath *path = NULL; + float bounds[4]; + float *curve; + int i; + + if (p->npts < 4) + return; + + if (closed) + nsvg__lineTo(p, p->pts[0], p->pts[1]); + + // Expect 1 + N*3 points (N = number of cubic bezier segments). + if ((p->npts % 3) != 1) + return; + + path = (NSVGpath *)malloc(sizeof(NSVGpath)); + if (path == NULL) + goto error; + memset(path, 0, sizeof(NSVGpath)); + + path->pts = (float *)malloc(p->npts * 2 * sizeof(float)); + if (path->pts == NULL) + goto error; + path->closed = closed; + path->npts = p->npts; + + // Transform path. + for (i = 0; i < p->npts; ++i) + nsvg__xformPoint( + &path->pts[i * 2], &path->pts[i * 2 + 1], p->pts[i * 2], p->pts[i * 2 + 1], attr->xform); + + // Find bounds + for (i = 0; i < path->npts - 1; i += 3) { + curve = &path->pts[i * 2]; + nsvg__curveBounds(bounds, curve); + if (i == 0) { + path->bounds[0] = bounds[0]; + path->bounds[1] = bounds[1]; + path->bounds[2] = bounds[2]; + path->bounds[3] = bounds[3]; + } + else { + path->bounds[0] = nsvg__minf(path->bounds[0], bounds[0]); + path->bounds[1] = nsvg__minf(path->bounds[1], bounds[1]); + path->bounds[2] = nsvg__maxf(path->bounds[2], bounds[2]); + path->bounds[3] = nsvg__maxf(path->bounds[3], bounds[3]); + } + } + + path->next = p->plist; + p->plist = path; + + return; + +error: + if (path != NULL) { + if (path->pts != NULL) + free(path->pts); + free(path); + } +} + +// We roll our own string to float because the std library one uses locale and messes things up. +static double nsvg__atof(const char *s) +{ + char *cur = (char *)s; + char *end = NULL; + double res = 0.0, sign = 1.0; + long long intPart = 0, fracPart = 0; + char hasIntPart = 0, hasFracPart = 0; + + // Parse optional sign + if (*cur == '+') { + cur++; + } + else if (*cur == '-') { + sign = -1; + cur++; + } + + // Parse integer part + if (nsvg__isdigit(*cur)) { + // Parse digit sequence + intPart = strtoll(cur, &end, 10); + if (cur != end) { + res = (double)intPart; + hasIntPart = 1; + cur = end; + } + } + + // Parse fractional part. + if (*cur == '.') { + cur++; // Skip '.' + if (nsvg__isdigit(*cur)) { + // Parse digit sequence + fracPart = strtoll(cur, &end, 10); + if (cur != end) { + res += (double)fracPart / pow(10.0, (double)(end - cur)); + hasFracPart = 1; + cur = end; + } + } + } + + // A valid number should have integer or fractional part. + if (!hasIntPart && !hasFracPart) + return 0.0; + + // Parse optional exponent + if (*cur == 'e' || *cur == 'E') { + long expPart = 0; + cur++; // skip 'E' + expPart = strtol(cur, &end, 10); // Parse digit sequence with sign + if (cur != end) { + res *= pow(10.0, (double)expPart); + } + } + + return res * sign; +} + +static const char *nsvg__parseNumber(const char *s, char *it, const int size) +{ + const int last = size - 1; + int i = 0; + + // sign + if (*s == '-' || *s == '+') { + if (i < last) + it[i++] = *s; + s++; + } + // integer part + while (*s && nsvg__isdigit(*s)) { + if (i < last) + it[i++] = *s; + s++; + } + if (*s == '.') { + // decimal point + if (i < last) + it[i++] = *s; + s++; + // fraction part + while (*s && nsvg__isdigit(*s)) { + if (i < last) + it[i++] = *s; + s++; + } + } + // exponent + if ((*s == 'e' || *s == 'E') && (s[1] != 'm' && s[1] != 'x')) { + if (i < last) + it[i++] = *s; + s++; + if (*s == '-' || *s == '+') { + if (i < last) + it[i++] = *s; + s++; + } + while (*s && nsvg__isdigit(*s)) { + if (i < last) + it[i++] = *s; + s++; + } + } + it[i] = '\0'; + + return s; +} + +static const char *nsvg__getNextPathItem(const char *s, char *it) +{ + it[0] = '\0'; + // Skip white spaces and commas + while (*s && (nsvg__isspace(*s) || *s == ',')) + s++; + if (!*s) + return s; + if (*s == '-' || *s == '+' || *s == '.' || nsvg__isdigit(*s)) { + s = nsvg__parseNumber(s, it, 64); + } + else { + // Parse command + it[0] = *s++; + it[1] = '\0'; + return s; + } + + return s; +} + +static unsigned int nsvg__parseColorHex(const char *str) +{ + unsigned int c = 0, r = 0, g = 0, b = 0; + int n = 0; + str++; // skip # + // Calculate number of characters. + while (str[n] && !nsvg__isspace(str[n])) + n++; + if (n == 6) { + sscanf(str, "%x", &c); + } + else if (n == 3) { + sscanf(str, "%x", &c); + c = (c & 0xf) | ((c & 0xf0) << 4) | ((c & 0xf00) << 8); + c |= c << 4; + } + r = (c >> 16) & 0xff; + g = (c >> 8) & 0xff; + b = c & 0xff; + return NSVG_RGB(r, g, b); +} + +static unsigned int nsvg__parseColorRGB(const char *str) +{ + int r = -1, g = -1, b = -1; + char s1[32] = "", s2[32] = ""; + sscanf(str + 4, "%d%[%%, \t]%d%[%%, \t]%d", &r, s1, &g, s2, &b); + if (strchr(s1, '%')) { + return NSVG_RGB((r * 255) / 100, (g * 255) / 100, (b * 255) / 100); + } + else { + return NSVG_RGB(r, g, b); + } +} + +typedef struct NSVGNamedColor { + const char *name; + unsigned int color; +} NSVGNamedColor; + +NSVGNamedColor nsvg__colors[] = { + + {"red", NSVG_RGB(255, 0, 0)}, + {"green", NSVG_RGB(0, 128, 0)}, + {"blue", NSVG_RGB(0, 0, 255)}, + {"yellow", NSVG_RGB(255, 255, 0)}, + {"cyan", NSVG_RGB(0, 255, 255)}, + {"magenta", NSVG_RGB(255, 0, 255)}, + {"black", NSVG_RGB(0, 0, 0)}, + {"grey", NSVG_RGB(128, 128, 128)}, + {"gray", NSVG_RGB(128, 128, 128)}, + {"white", NSVG_RGB(255, 255, 255)}, + +#ifdef NANOSVG_ALL_COLOR_KEYWORDS + {"aliceblue", NSVG_RGB(240, 248, 255)}, + {"antiquewhite", NSVG_RGB(250, 235, 215)}, + {"aqua", NSVG_RGB(0, 255, 255)}, + {"aquamarine", NSVG_RGB(127, 255, 212)}, + {"azure", NSVG_RGB(240, 255, 255)}, + {"beige", NSVG_RGB(245, 245, 220)}, + {"bisque", NSVG_RGB(255, 228, 196)}, + {"blanchedalmond", NSVG_RGB(255, 235, 205)}, + {"blueviolet", NSVG_RGB(138, 43, 226)}, + {"brown", NSVG_RGB(165, 42, 42)}, + {"burlywood", NSVG_RGB(222, 184, 135)}, + {"cadetblue", NSVG_RGB(95, 158, 160)}, + {"chartreuse", NSVG_RGB(127, 255, 0)}, + {"chocolate", NSVG_RGB(210, 105, 30)}, + {"coral", NSVG_RGB(255, 127, 80)}, + {"cornflowerblue", NSVG_RGB(100, 149, 237)}, + {"cornsilk", NSVG_RGB(255, 248, 220)}, + {"crimson", NSVG_RGB(220, 20, 60)}, + {"darkblue", NSVG_RGB(0, 0, 139)}, + {"darkcyan", NSVG_RGB(0, 139, 139)}, + {"darkgoldenrod", NSVG_RGB(184, 134, 11)}, + {"darkgray", NSVG_RGB(169, 169, 169)}, + {"darkgreen", NSVG_RGB(0, 100, 0)}, + {"darkgrey", NSVG_RGB(169, 169, 169)}, + {"darkkhaki", NSVG_RGB(189, 183, 107)}, + {"darkmagenta", NSVG_RGB(139, 0, 139)}, + {"darkolivegreen", NSVG_RGB(85, 107, 47)}, + {"darkorange", NSVG_RGB(255, 140, 0)}, + {"darkorchid", NSVG_RGB(153, 50, 204)}, + {"darkred", NSVG_RGB(139, 0, 0)}, + {"darksalmon", NSVG_RGB(233, 150, 122)}, + {"darkseagreen", NSVG_RGB(143, 188, 143)}, + {"darkslateblue", NSVG_RGB(72, 61, 139)}, + {"darkslategray", NSVG_RGB(47, 79, 79)}, + {"darkslategrey", NSVG_RGB(47, 79, 79)}, + {"darkturquoise", NSVG_RGB(0, 206, 209)}, + {"darkviolet", NSVG_RGB(148, 0, 211)}, + {"deeppink", NSVG_RGB(255, 20, 147)}, + {"deepskyblue", NSVG_RGB(0, 191, 255)}, + {"dimgray", NSVG_RGB(105, 105, 105)}, + {"dimgrey", NSVG_RGB(105, 105, 105)}, + {"dodgerblue", NSVG_RGB(30, 144, 255)}, + {"firebrick", NSVG_RGB(178, 34, 34)}, + {"floralwhite", NSVG_RGB(255, 250, 240)}, + {"forestgreen", NSVG_RGB(34, 139, 34)}, + {"fuchsia", NSVG_RGB(255, 0, 255)}, + {"gainsboro", NSVG_RGB(220, 220, 220)}, + {"ghostwhite", NSVG_RGB(248, 248, 255)}, + {"gold", NSVG_RGB(255, 215, 0)}, + {"goldenrod", NSVG_RGB(218, 165, 32)}, + {"greenyellow", NSVG_RGB(173, 255, 47)}, + {"honeydew", NSVG_RGB(240, 255, 240)}, + {"hotpink", NSVG_RGB(255, 105, 180)}, + {"indianred", NSVG_RGB(205, 92, 92)}, + {"indigo", NSVG_RGB(75, 0, 130)}, + {"ivory", NSVG_RGB(255, 255, 240)}, + {"khaki", NSVG_RGB(240, 230, 140)}, + {"lavender", NSVG_RGB(230, 230, 250)}, + {"lavenderblush", NSVG_RGB(255, 240, 245)}, + {"lawngreen", NSVG_RGB(124, 252, 0)}, + {"lemonchiffon", NSVG_RGB(255, 250, 205)}, + {"lightblue", NSVG_RGB(173, 216, 230)}, + {"lightcoral", NSVG_RGB(240, 128, 128)}, + {"lightcyan", NSVG_RGB(224, 255, 255)}, + {"lightgoldenrodyellow", NSVG_RGB(250, 250, 210)}, + {"lightgray", NSVG_RGB(211, 211, 211)}, + {"lightgreen", NSVG_RGB(144, 238, 144)}, + {"lightgrey", NSVG_RGB(211, 211, 211)}, + {"lightpink", NSVG_RGB(255, 182, 193)}, + {"lightsalmon", NSVG_RGB(255, 160, 122)}, + {"lightseagreen", NSVG_RGB(32, 178, 170)}, + {"lightskyblue", NSVG_RGB(135, 206, 250)}, + {"lightslategray", NSVG_RGB(119, 136, 153)}, + {"lightslategrey", NSVG_RGB(119, 136, 153)}, + {"lightsteelblue", NSVG_RGB(176, 196, 222)}, + {"lightyellow", NSVG_RGB(255, 255, 224)}, + {"lime", NSVG_RGB(0, 255, 0)}, + {"limegreen", NSVG_RGB(50, 205, 50)}, + {"linen", NSVG_RGB(250, 240, 230)}, + {"maroon", NSVG_RGB(128, 0, 0)}, + {"mediumaquamarine", NSVG_RGB(102, 205, 170)}, + {"mediumblue", NSVG_RGB(0, 0, 205)}, + {"mediumorchid", NSVG_RGB(186, 85, 211)}, + {"mediumpurple", NSVG_RGB(147, 112, 219)}, + {"mediumseagreen", NSVG_RGB(60, 179, 113)}, + {"mediumslateblue", NSVG_RGB(123, 104, 238)}, + {"mediumspringgreen", NSVG_RGB(0, 250, 154)}, + {"mediumturquoise", NSVG_RGB(72, 209, 204)}, + {"mediumvioletred", NSVG_RGB(199, 21, 133)}, + {"midnightblue", NSVG_RGB(25, 25, 112)}, + {"mintcream", NSVG_RGB(245, 255, 250)}, + {"mistyrose", NSVG_RGB(255, 228, 225)}, + {"moccasin", NSVG_RGB(255, 228, 181)}, + {"navajowhite", NSVG_RGB(255, 222, 173)}, + {"navy", NSVG_RGB(0, 0, 128)}, + {"oldlace", NSVG_RGB(253, 245, 230)}, + {"olive", NSVG_RGB(128, 128, 0)}, + {"olivedrab", NSVG_RGB(107, 142, 35)}, + {"orange", NSVG_RGB(255, 165, 0)}, + {"orangered", NSVG_RGB(255, 69, 0)}, + {"orchid", NSVG_RGB(218, 112, 214)}, + {"palegoldenrod", NSVG_RGB(238, 232, 170)}, + {"palegreen", NSVG_RGB(152, 251, 152)}, + {"paleturquoise", NSVG_RGB(175, 238, 238)}, + {"palevioletred", NSVG_RGB(219, 112, 147)}, + {"papayawhip", NSVG_RGB(255, 239, 213)}, + {"peachpuff", NSVG_RGB(255, 218, 185)}, + {"peru", NSVG_RGB(205, 133, 63)}, + {"pink", NSVG_RGB(255, 192, 203)}, + {"plum", NSVG_RGB(221, 160, 221)}, + {"powderblue", NSVG_RGB(176, 224, 230)}, + {"purple", NSVG_RGB(128, 0, 128)}, + {"rosybrown", NSVG_RGB(188, 143, 143)}, + {"royalblue", NSVG_RGB(65, 105, 225)}, + {"saddlebrown", NSVG_RGB(139, 69, 19)}, + {"salmon", NSVG_RGB(250, 128, 114)}, + {"sandybrown", NSVG_RGB(244, 164, 96)}, + {"seagreen", NSVG_RGB(46, 139, 87)}, + {"seashell", NSVG_RGB(255, 245, 238)}, + {"sienna", NSVG_RGB(160, 82, 45)}, + {"silver", NSVG_RGB(192, 192, 192)}, + {"skyblue", NSVG_RGB(135, 206, 235)}, + {"slateblue", NSVG_RGB(106, 90, 205)}, + {"slategray", NSVG_RGB(112, 128, 144)}, + {"slategrey", NSVG_RGB(112, 128, 144)}, + {"snow", NSVG_RGB(255, 250, 250)}, + {"springgreen", NSVG_RGB(0, 255, 127)}, + {"steelblue", NSVG_RGB(70, 130, 180)}, + {"tan", NSVG_RGB(210, 180, 140)}, + {"teal", NSVG_RGB(0, 128, 128)}, + {"thistle", NSVG_RGB(216, 191, 216)}, + {"tomato", NSVG_RGB(255, 99, 71)}, + {"turquoise", NSVG_RGB(64, 224, 208)}, + {"violet", NSVG_RGB(238, 130, 238)}, + {"wheat", NSVG_RGB(245, 222, 179)}, + {"whitesmoke", NSVG_RGB(245, 245, 245)}, + {"yellowgreen", NSVG_RGB(154, 205, 50)}, +#endif +}; + +static unsigned int nsvg__parseColorName(const char *str) +{ + int i, ncolors = sizeof(nsvg__colors) / sizeof(NSVGNamedColor); + + for (i = 0; i < ncolors; i++) { + if (strcmp(nsvg__colors[i].name, str) == 0) { + return nsvg__colors[i].color; + } + } + + return NSVG_RGB(128, 128, 128); +} + +static unsigned int nsvg__parseColor(const char *str) +{ + size_t len = 0; + while (*str == ' ') + ++str; + len = strlen(str); + if (len >= 1 && *str == '#') + return nsvg__parseColorHex(str); + else if (len >= 4 && str[0] == 'r' && str[1] == 'g' && str[2] == 'b' && str[3] == '(') + return nsvg__parseColorRGB(str); + return nsvg__parseColorName(str); +} + +static float nsvg__parseOpacity(const char *str) +{ + float val = nsvg__atof(str); + if (val < 0.0f) + val = 0.0f; + if (val > 1.0f) + val = 1.0f; + return val; +} + +static float nsvg__parseMiterLimit(const char *str) +{ + float val = nsvg__atof(str); + if (val < 0.0f) + val = 0.0f; + return val; +} + +static int nsvg__parseUnits(const char *units) +{ + if (units[0] == 'p' && units[1] == 'x') + return NSVG_UNITS_PX; + else if (units[0] == 'p' && units[1] == 't') + return NSVG_UNITS_PT; + else if (units[0] == 'p' && units[1] == 'c') + return NSVG_UNITS_PC; + else if (units[0] == 'm' && units[1] == 'm') + return NSVG_UNITS_MM; + else if (units[0] == 'c' && units[1] == 'm') + return NSVG_UNITS_CM; + else if (units[0] == 'i' && units[1] == 'n') + return NSVG_UNITS_IN; + else if (units[0] == '%') + return NSVG_UNITS_PERCENT; + else if (units[0] == 'e' && units[1] == 'm') + return NSVG_UNITS_EM; + else if (units[0] == 'e' && units[1] == 'x') + return NSVG_UNITS_EX; + return NSVG_UNITS_USER; +} + +static int nsvg__isCoordinate(const char *s) +{ + // optional sign + if (*s == '-' || *s == '+') + s++; + // must have at least one digit + return nsvg__isdigit(*s); +} + +static NSVGcoordinate nsvg__parseCoordinateRaw(const char *str) +{ + NSVGcoordinate coord = {0, NSVG_UNITS_USER}; + char buf[64]; + coord.units = nsvg__parseUnits(nsvg__parseNumber(str, buf, 64)); + coord.value = nsvg__atof(buf); + return coord; +} + +static NSVGcoordinate nsvg__coord(float v, int units) +{ + NSVGcoordinate coord = {v, units}; + return coord; +} + +static float nsvg__parseCoordinate(NSVGparser *p, const char *str, float orig, float length) +{ + NSVGcoordinate coord = nsvg__parseCoordinateRaw(str); + return nsvg__convertToPixels(p, coord, orig, length); +} + +static int nsvg__parseTransformArgs(const char *str, float *args, int maxNa, int *na) +{ + const char *end; + const char *ptr; + char it[64]; + + *na = 0; + ptr = str; + while (*ptr && *ptr != '(') + ++ptr; + if (*ptr == 0) + return 1; + end = ptr; + while (*end && *end != ')') + ++end; + if (*end == 0) + return 1; + + while (ptr < end) { + if (*ptr == '-' || *ptr == '+' || *ptr == '.' || nsvg__isdigit(*ptr)) { + if (*na >= maxNa) + return 0; + ptr = nsvg__parseNumber(ptr, it, 64); + args[(*na)++] = (float)nsvg__atof(it); + } + else { + ++ptr; + } + } + return (int)(end - str); +} + +static int nsvg__parseMatrix(float *xform, const char *str) +{ + float t[6]; + int na = 0; + int len = nsvg__parseTransformArgs(str, t, 6, &na); + if (na != 6) + return len; + memcpy(xform, t, sizeof(float) * 6); + return len; +} + +static int nsvg__parseTranslate(float *xform, const char *str) +{ + float args[2]; + float t[6]; + int na = 0; + int len = nsvg__parseTransformArgs(str, args, 2, &na); + if (na == 1) + args[1] = 0.0; + + nsvg__xformSetTranslation(t, args[0], args[1]); + memcpy(xform, t, sizeof(float) * 6); + return len; +} + +static int nsvg__parseScale(float *xform, const char *str) +{ + float args[2]; + int na = 0; + float t[6]; + int len = nsvg__parseTransformArgs(str, args, 2, &na); + if (na == 1) + args[1] = args[0]; + nsvg__xformSetScale(t, args[0], args[1]); + memcpy(xform, t, sizeof(float) * 6); + return len; +} + +static int nsvg__parseSkewX(float *xform, const char *str) +{ + float args[1]; + int na = 0; + float t[6]; + int len = nsvg__parseTransformArgs(str, args, 1, &na); + nsvg__xformSetSkewX(t, args[0] / 180.0f * NSVG_PI); + memcpy(xform, t, sizeof(float) * 6); + return len; +} + +static int nsvg__parseSkewY(float *xform, const char *str) +{ + float args[1]; + int na = 0; + float t[6]; + int len = nsvg__parseTransformArgs(str, args, 1, &na); + nsvg__xformSetSkewY(t, args[0] / 180.0f * NSVG_PI); + memcpy(xform, t, sizeof(float) * 6); + return len; +} + +static int nsvg__parseRotate(float *xform, const char *str) +{ + float args[3]; + int na = 0; + float m[6]; + float t[6]; + int len = nsvg__parseTransformArgs(str, args, 3, &na); + if (na == 1) + args[1] = args[2] = 0.0f; + nsvg__xformIdentity(m); + + if (na > 1) { + nsvg__xformSetTranslation(t, -args[1], -args[2]); + nsvg__xformMultiply(m, t); + } + + nsvg__xformSetRotation(t, args[0] / 180.0f * NSVG_PI); + nsvg__xformMultiply(m, t); + + if (na > 1) { + nsvg__xformSetTranslation(t, args[1], args[2]); + nsvg__xformMultiply(m, t); + } + + memcpy(xform, m, sizeof(float) * 6); + + return len; +} + +static void nsvg__parseTransform(float *xform, const char *str) +{ + float t[6]; + int len; + nsvg__xformIdentity(xform); + while (*str) { + if (strncmp(str, "matrix", 6) == 0) + len = nsvg__parseMatrix(t, str); + else if (strncmp(str, "translate", 9) == 0) + len = nsvg__parseTranslate(t, str); + else if (strncmp(str, "scale", 5) == 0) + len = nsvg__parseScale(t, str); + else if (strncmp(str, "rotate", 6) == 0) + len = nsvg__parseRotate(t, str); + else if (strncmp(str, "skewX", 5) == 0) + len = nsvg__parseSkewX(t, str); + else if (strncmp(str, "skewY", 5) == 0) + len = nsvg__parseSkewY(t, str); + else { + ++str; + continue; + } + if (len != 0) { + str += len; + } + else { + ++str; + continue; + } + + nsvg__xformPremultiply(xform, t); + } +} + +static void nsvg__parseUrl(char *id, const char *str) +{ + int i = 0; + str += 4; // "url("; + if (*str == '#') + str++; + while (i < 63 && *str != ')') { + id[i] = *str++; + i++; + } + id[i] = '\0'; +} + +static char nsvg__parseLineCap(const char *str) +{ + if (strcmp(str, "butt") == 0) + return NSVG_CAP_BUTT; + else if (strcmp(str, "round") == 0) + return NSVG_CAP_ROUND; + else if (strcmp(str, "square") == 0) + return NSVG_CAP_SQUARE; + // TODO: handle inherit. + return NSVG_CAP_BUTT; +} + +static char nsvg__parseLineJoin(const char *str) +{ + if (strcmp(str, "miter") == 0) + return NSVG_JOIN_MITER; + else if (strcmp(str, "round") == 0) + return NSVG_JOIN_ROUND; + else if (strcmp(str, "bevel") == 0) + return NSVG_JOIN_BEVEL; + // TODO: handle inherit. + return NSVG_JOIN_MITER; +} + +static char nsvg__parseFillRule(const char *str) +{ + if (strcmp(str, "nonzero") == 0) + return NSVG_FILLRULE_NONZERO; + else if (strcmp(str, "evenodd") == 0) + return NSVG_FILLRULE_EVENODD; + // TODO: handle inherit. + return NSVG_FILLRULE_NONZERO; +} + +static const char *nsvg__getNextDashItem(const char *s, char *it) +{ + int n = 0; + it[0] = '\0'; + // Skip white spaces and commas + while (*s && (nsvg__isspace(*s) || *s == ',')) + s++; + // Advance until whitespace, comma or end. + while (*s && (!nsvg__isspace(*s) && *s != ',')) { + if (n < 63) + it[n++] = *s; + s++; + } + it[n++] = '\0'; + return s; +} + +static int nsvg__parseStrokeDashArray(NSVGparser *p, const char *str, float *strokeDashArray) +{ + char item[64]; + int count = 0, i; + float sum = 0.0f; + + // Handle "none" + if (str[0] == 'n') + return 0; + + // Parse dashes + while (*str) { + str = nsvg__getNextDashItem(str, item); + if (!*item) + break; + if (count < NSVG_MAX_DASHES) + strokeDashArray[count++] = fabsf( + nsvg__parseCoordinate(p, item, 0.0f, nsvg__actualLength(p))); + } + + for (i = 0; i < count; i++) + sum += strokeDashArray[i]; + if (sum <= 1e-6f) + count = 0; + + return count; +} + +static void nsvg__parseStyle(NSVGparser *p, const char *str); + +static int nsvg__parseAttr(NSVGparser *p, const char *name, const char *value) +{ + float xform[6]; + NSVGattrib *attr = nsvg__getAttr(p); + if (!attr) + return 0; + + if (strcmp(name, "style") == 0) { + nsvg__parseStyle(p, value); + } + else if (strcmp(name, "display") == 0) { + if (strcmp(value, "none") == 0) + attr->visible = 0; + // Don't reset ->visible on display:inline, one display:none hides the whole subtree + } + else if (strcmp(name, "fill") == 0) { + if (strcmp(value, "none") == 0) { + attr->hasFill = 0; + } + else if (strncmp(value, "url(", 4) == 0) { + attr->hasFill = 2; + nsvg__parseUrl(attr->fillGradient, value); + } + else { + attr->hasFill = 1; + attr->fillColor = nsvg__parseColor(value); + } + } + else if (strcmp(name, "opacity") == 0) { + attr->opacity = nsvg__parseOpacity(value); + } + else if (strcmp(name, "fill-opacity") == 0) { + attr->fillOpacity = nsvg__parseOpacity(value); + } + else if (strcmp(name, "stroke") == 0) { + if (strcmp(value, "none") == 0) { + attr->hasStroke = 0; + } + else if (strncmp(value, "url(", 4) == 0) { + attr->hasStroke = 2; + nsvg__parseUrl(attr->strokeGradient, value); + } + else { + attr->hasStroke = 1; + attr->strokeColor = nsvg__parseColor(value); + } + } + else if (strcmp(name, "stroke-width") == 0) { + attr->strokeWidth = nsvg__parseCoordinate(p, value, 0.0f, nsvg__actualLength(p)); + } + else if (strcmp(name, "stroke-dasharray") == 0) { + attr->strokeDashCount = nsvg__parseStrokeDashArray(p, value, attr->strokeDashArray); + } + else if (strcmp(name, "stroke-dashoffset") == 0) { + attr->strokeDashOffset = nsvg__parseCoordinate(p, value, 0.0f, nsvg__actualLength(p)); + } + else if (strcmp(name, "stroke-opacity") == 0) { + attr->strokeOpacity = nsvg__parseOpacity(value); + } + else if (strcmp(name, "stroke-linecap") == 0) { + attr->strokeLineCap = nsvg__parseLineCap(value); + } + else if (strcmp(name, "stroke-linejoin") == 0) { + attr->strokeLineJoin = nsvg__parseLineJoin(value); + } + else if (strcmp(name, "stroke-miterlimit") == 0) { + attr->miterLimit = nsvg__parseMiterLimit(value); + } + else if (strcmp(name, "fill-rule") == 0) { + attr->fillRule = nsvg__parseFillRule(value); + } + else if (strcmp(name, "font-size") == 0) { + attr->fontSize = nsvg__parseCoordinate(p, value, 0.0f, nsvg__actualLength(p)); + } + else if (strcmp(name, "transform") == 0) { + nsvg__parseTransform(xform, value); + nsvg__xformPremultiply(attr->xform, xform); + } + else if (strcmp(name, "stop-color") == 0) { + attr->stopColor = nsvg__parseColor(value); + } + else if (strcmp(name, "stop-opacity") == 0) { + attr->stopOpacity = nsvg__parseOpacity(value); + } + else if (strcmp(name, "offset") == 0) { + attr->stopOffset = nsvg__parseCoordinate(p, value, 0.0f, 1.0f); + } + else if (strcmp(name, "id") == 0) { + strncpy(attr->id, value, 63); + attr->id[63] = '\0'; + } + else { + return 0; + } + return 1; +} + +static int nsvg__parseNameValue(NSVGparser *p, const char *start, const char *end) +{ + const char *str; + const char *val; + char name[512]; + char value[512]; + int n; + + str = start; + while (str < end && *str != ':') + ++str; + + val = str; + + // Right Trim + while (str > start && (*str == ':' || nsvg__isspace(*str))) + --str; + ++str; + + n = (int)(str - start); + if (n > 511) + n = 511; + if (n) + memcpy(name, start, n); + name[n] = 0; + + while (val < end && (*val == ':' || nsvg__isspace(*val))) + ++val; + + n = (int)(end - val); + if (n > 511) + n = 511; + if (n) + memcpy(value, val, n); + value[n] = 0; + + return nsvg__parseAttr(p, name, value); +} + +static void nsvg__parseStyle(NSVGparser *p, const char *str) +{ + const char *start; + const char *end; + + while (*str) { + // Left Trim + while (*str && nsvg__isspace(*str)) + ++str; + start = str; + while (*str && *str != ';') + ++str; + end = str; + + // Right Trim + while (end > start && (*end == ';' || nsvg__isspace(*end))) + --end; + ++end; + + nsvg__parseNameValue(p, start, end); + if (*str) + ++str; + } +} + +static void nsvg__parseAttribs(NSVGparser *p, const char **attr) +{ + int i; + for (i = 0; attr[i]; i += 2) { + if (strcmp(attr[i], "style") == 0) + nsvg__parseStyle(p, attr[i + 1]); + else + nsvg__parseAttr(p, attr[i], attr[i + 1]); + } +} + +static int nsvg__getArgsPerElement(char cmd) +{ + switch (cmd) { + case 'v': + case 'V': + case 'h': + case 'H': + return 1; + case 'm': + case 'M': + case 'l': + case 'L': + case 't': + case 'T': + return 2; + case 'q': + case 'Q': + case 's': + case 'S': + return 4; + case 'c': + case 'C': + return 6; + case 'a': + case 'A': + return 7; + case 'z': + case 'Z': + return 0; + } + return -1; +} + +static void nsvg__pathMoveTo(NSVGparser *p, float *cpx, float *cpy, float *args, int rel) +{ + if (rel) { + *cpx += args[0]; + *cpy += args[1]; + } + else { + *cpx = args[0]; + *cpy = args[1]; + } + nsvg__moveTo(p, *cpx, *cpy); +} + +static void nsvg__pathLineTo(NSVGparser *p, float *cpx, float *cpy, float *args, int rel) +{ + if (rel) { + *cpx += args[0]; + *cpy += args[1]; + } + else { + *cpx = args[0]; + *cpy = args[1]; + } + nsvg__lineTo(p, *cpx, *cpy); +} + +static void nsvg__pathHLineTo(NSVGparser *p, float *cpx, float *cpy, float *args, int rel) +{ + if (rel) + *cpx += args[0]; + else + *cpx = args[0]; + nsvg__lineTo(p, *cpx, *cpy); +} + +static void nsvg__pathVLineTo(NSVGparser *p, float *cpx, float *cpy, float *args, int rel) +{ + if (rel) + *cpy += args[0]; + else + *cpy = args[0]; + nsvg__lineTo(p, *cpx, *cpy); +} + +static void nsvg__pathCubicBezTo( + NSVGparser *p, float *cpx, float *cpy, float *cpx2, float *cpy2, float *args, int rel) +{ + float x2, y2, cx1, cy1, cx2, cy2; + + if (rel) { + cx1 = *cpx + args[0]; + cy1 = *cpy + args[1]; + cx2 = *cpx + args[2]; + cy2 = *cpy + args[3]; + x2 = *cpx + args[4]; + y2 = *cpy + args[5]; + } + else { + cx1 = args[0]; + cy1 = args[1]; + cx2 = args[2]; + cy2 = args[3]; + x2 = args[4]; + y2 = args[5]; + } + + nsvg__cubicBezTo(p, cx1, cy1, cx2, cy2, x2, y2); + + *cpx2 = cx2; + *cpy2 = cy2; + *cpx = x2; + *cpy = y2; +} + +static void nsvg__pathCubicBezShortTo( + NSVGparser *p, float *cpx, float *cpy, float *cpx2, float *cpy2, float *args, int rel) +{ + float x1, y1, x2, y2, cx1, cy1, cx2, cy2; + + x1 = *cpx; + y1 = *cpy; + if (rel) { + cx2 = *cpx + args[0]; + cy2 = *cpy + args[1]; + x2 = *cpx + args[2]; + y2 = *cpy + args[3]; + } + else { + cx2 = args[0]; + cy2 = args[1]; + x2 = args[2]; + y2 = args[3]; + } + + cx1 = 2 * x1 - *cpx2; + cy1 = 2 * y1 - *cpy2; + + nsvg__cubicBezTo(p, cx1, cy1, cx2, cy2, x2, y2); + + *cpx2 = cx2; + *cpy2 = cy2; + *cpx = x2; + *cpy = y2; +} + +static void nsvg__pathQuadBezTo( + NSVGparser *p, float *cpx, float *cpy, float *cpx2, float *cpy2, float *args, int rel) +{ + float x1, y1, x2, y2, cx, cy; + float cx1, cy1, cx2, cy2; + + x1 = *cpx; + y1 = *cpy; + if (rel) { + cx = *cpx + args[0]; + cy = *cpy + args[1]; + x2 = *cpx + args[2]; + y2 = *cpy + args[3]; + } + else { + cx = args[0]; + cy = args[1]; + x2 = args[2]; + y2 = args[3]; + } + + // Convert to cubic bezier + cx1 = x1 + 2.0f / 3.0f * (cx - x1); + cy1 = y1 + 2.0f / 3.0f * (cy - y1); + cx2 = x2 + 2.0f / 3.0f * (cx - x2); + cy2 = y2 + 2.0f / 3.0f * (cy - y2); + + nsvg__cubicBezTo(p, cx1, cy1, cx2, cy2, x2, y2); + + *cpx2 = cx; + *cpy2 = cy; + *cpx = x2; + *cpy = y2; +} + +static void nsvg__pathQuadBezShortTo( + NSVGparser *p, float *cpx, float *cpy, float *cpx2, float *cpy2, float *args, int rel) +{ + float x1, y1, x2, y2, cx, cy; + float cx1, cy1, cx2, cy2; + + x1 = *cpx; + y1 = *cpy; + if (rel) { + x2 = *cpx + args[0]; + y2 = *cpy + args[1]; + } + else { + x2 = args[0]; + y2 = args[1]; + } + + cx = 2 * x1 - *cpx2; + cy = 2 * y1 - *cpy2; + + // Convert to cubix bezier + cx1 = x1 + 2.0f / 3.0f * (cx - x1); + cy1 = y1 + 2.0f / 3.0f * (cy - y1); + cx2 = x2 + 2.0f / 3.0f * (cx - x2); + cy2 = y2 + 2.0f / 3.0f * (cy - y2); + + nsvg__cubicBezTo(p, cx1, cy1, cx2, cy2, x2, y2); + + *cpx2 = cx; + *cpy2 = cy; + *cpx = x2; + *cpy = y2; +} + +static float nsvg__sqr(float x) +{ + return x * x; +} +static float nsvg__vmag(float x, float y) +{ + return sqrtf(x * x + y * y); +} + +static float nsvg__vecrat(float ux, float uy, float vx, float vy) +{ + return (ux * vx + uy * vy) / (nsvg__vmag(ux, uy) * nsvg__vmag(vx, vy)); +} + +static float nsvg__vecang(float ux, float uy, float vx, float vy) +{ + float r = nsvg__vecrat(ux, uy, vx, vy); + if (r < -1.0f) + r = -1.0f; + if (r > 1.0f) + r = 1.0f; + return ((ux * vy < uy * vx) ? -1.0f : 1.0f) * acosf(r); +} + +static void nsvg__pathArcTo(NSVGparser *p, float *cpx, float *cpy, float *args, int rel) +{ + // Ported from canvg (https://code.google.com/p/canvg/) + float rx, ry, rotx; + float x1, y1, x2, y2, cx, cy, dx, dy, d; + float x1p, y1p, cxp, cyp, s, sa, sb; + float ux, uy, vx, vy, a1, da; + float x, y, tanx, tany, a, px = 0, py = 0, ptanx = 0, ptany = 0, t[6]; + float sinrx, cosrx; + int fa, fs; + int i, ndivs; + float hda, kappa; + + rx = fabsf(args[0]); // y radius + ry = fabsf(args[1]); // x radius + rotx = args[2] / 180.0f * NSVG_PI; // x rotation angle + fa = fabsf(args[3]) > 1e-6 ? 1 : 0; // Large arc + fs = fabsf(args[4]) > 1e-6 ? 1 : 0; // Sweep direction + x1 = *cpx; // start point + y1 = *cpy; + if (rel) { // end point + x2 = *cpx + args[5]; + y2 = *cpy + args[6]; + } + else { + x2 = args[5]; + y2 = args[6]; + } + + dx = x1 - x2; + dy = y1 - y2; + d = sqrtf(dx * dx + dy * dy); + if (d < 1e-6f || rx < 1e-6f || ry < 1e-6f) { + // The arc degenerates to a line + nsvg__lineTo(p, x2, y2); + *cpx = x2; + *cpy = y2; + return; + } + + sinrx = sinf(rotx); + cosrx = cosf(rotx); + + // Convert to center point parameterization. + // http://www.w3.org/TR/SVG11/implnote.html#ArcImplementationNotes + // 1) Compute x1', y1' + x1p = cosrx * dx / 2.0f + sinrx * dy / 2.0f; + y1p = -sinrx * dx / 2.0f + cosrx * dy / 2.0f; + d = nsvg__sqr(x1p) / nsvg__sqr(rx) + nsvg__sqr(y1p) / nsvg__sqr(ry); + if (d > 1) { + d = sqrtf(d); + rx *= d; + ry *= d; + } + // 2) Compute cx', cy' + s = 0.0f; + sa = nsvg__sqr(rx) * nsvg__sqr(ry) - nsvg__sqr(rx) * nsvg__sqr(y1p) - + nsvg__sqr(ry) * nsvg__sqr(x1p); + sb = nsvg__sqr(rx) * nsvg__sqr(y1p) + nsvg__sqr(ry) * nsvg__sqr(x1p); + if (sa < 0.0f) + sa = 0.0f; + if (sb > 0.0f) + s = sqrtf(sa / sb); + if (fa == fs) + s = -s; + cxp = s * rx * y1p / ry; + cyp = s * -ry * x1p / rx; + + // 3) Compute cx,cy from cx',cy' + cx = (x1 + x2) / 2.0f + cosrx * cxp - sinrx * cyp; + cy = (y1 + y2) / 2.0f + sinrx * cxp + cosrx * cyp; + + // 4) Calculate theta1, and delta theta. + ux = (x1p - cxp) / rx; + uy = (y1p - cyp) / ry; + vx = (-x1p - cxp) / rx; + vy = (-y1p - cyp) / ry; + a1 = nsvg__vecang(1.0f, 0.0f, ux, uy); // Initial angle + da = nsvg__vecang(ux, uy, vx, vy); // Delta angle + + // if (vecrat(ux,uy,vx,vy) <= -1.0f) da = NSVG_PI; + // if (vecrat(ux,uy,vx,vy) >= 1.0f) da = 0; + + if (fs == 0 && da > 0) + da -= 2 * NSVG_PI; + else if (fs == 1 && da < 0) + da += 2 * NSVG_PI; + + // Approximate the arc using cubic spline segments. + t[0] = cosrx; + t[1] = sinrx; + t[2] = -sinrx; + t[3] = cosrx; + t[4] = cx; + t[5] = cy; + + // Split arc into max 90 degree segments. + // The loop assumes an iteration per end point (including start and end), this +1. + ndivs = (int)(fabsf(da) / (NSVG_PI * 0.5f) + 1.0f); + hda = (da / (float)ndivs) / 2.0f; + kappa = fabsf(4.0f / 3.0f * (1.0f - cosf(hda)) / sinf(hda)); + if (da < 0.0f) + kappa = -kappa; + + for (i = 0; i <= ndivs; i++) { + a = a1 + da * ((float)i / (float)ndivs); + dx = cosf(a); + dy = sinf(a); + nsvg__xformPoint(&x, &y, dx * rx, dy * ry, t); // position + nsvg__xformVec(&tanx, &tany, -dy * rx * kappa, dx * ry * kappa, t); // tangent + if (i > 0) + nsvg__cubicBezTo(p, px + ptanx, py + ptany, x - tanx, y - tany, x, y); + px = x; + py = y; + ptanx = tanx; + ptany = tany; + } + + *cpx = x2; + *cpy = y2; +} + +static void nsvg__parsePath(NSVGparser *p, const char **attr) +{ + const char *s = NULL; + char cmd = '\0'; + float args[10]; + int nargs; + int rargs = 0; + char initPoint; + float cpx, cpy, cpx2, cpy2; + const char *tmp[4]; + char closedFlag; + int i; + char item[64]; + + for (i = 0; attr[i]; i += 2) { + if (strcmp(attr[i], "d") == 0) { + s = attr[i + 1]; + } + else { + tmp[0] = attr[i]; + tmp[1] = attr[i + 1]; + tmp[2] = 0; + tmp[3] = 0; + nsvg__parseAttribs(p, tmp); + } + } + + if (s) { + nsvg__resetPath(p); + cpx = 0; + cpy = 0; + cpx2 = 0; + cpy2 = 0; + initPoint = 0; + closedFlag = 0; + nargs = 0; + + while (*s) { + s = nsvg__getNextPathItem(s, item); + if (!*item) + break; + if (cmd != '\0' && nsvg__isCoordinate(item)) { + if (nargs < 10) + args[nargs++] = (float)nsvg__atof(item); + if (nargs >= rargs) { + switch (cmd) { + case 'm': + case 'M': + nsvg__pathMoveTo(p, &cpx, &cpy, args, cmd == 'm' ? 1 : 0); + // Moveto can be followed by multiple coordinate pairs, + // which should be treated as linetos. + cmd = (cmd == 'm') ? 'l' : 'L'; + rargs = nsvg__getArgsPerElement(cmd); + cpx2 = cpx; + cpy2 = cpy; + initPoint = 1; + break; + case 'l': + case 'L': + nsvg__pathLineTo(p, &cpx, &cpy, args, cmd == 'l' ? 1 : 0); + cpx2 = cpx; + cpy2 = cpy; + break; + case 'H': + case 'h': + nsvg__pathHLineTo(p, &cpx, &cpy, args, cmd == 'h' ? 1 : 0); + cpx2 = cpx; + cpy2 = cpy; + break; + case 'V': + case 'v': + nsvg__pathVLineTo(p, &cpx, &cpy, args, cmd == 'v' ? 1 : 0); + cpx2 = cpx; + cpy2 = cpy; + break; + case 'C': + case 'c': + nsvg__pathCubicBezTo(p, &cpx, &cpy, &cpx2, &cpy2, args, cmd == 'c' ? 1 : 0); + break; + case 'S': + case 's': + nsvg__pathCubicBezShortTo(p, &cpx, &cpy, &cpx2, &cpy2, args, cmd == 's' ? 1 : 0); + break; + case 'Q': + case 'q': + nsvg__pathQuadBezTo(p, &cpx, &cpy, &cpx2, &cpy2, args, cmd == 'q' ? 1 : 0); + break; + case 'T': + case 't': + nsvg__pathQuadBezShortTo(p, &cpx, &cpy, &cpx2, &cpy2, args, cmd == 't' ? 1 : 0); + break; + case 'A': + case 'a': + nsvg__pathArcTo(p, &cpx, &cpy, args, cmd == 'a' ? 1 : 0); + cpx2 = cpx; + cpy2 = cpy; + break; + default: + if (nargs >= 2) { + cpx = args[nargs - 2]; + cpy = args[nargs - 1]; + cpx2 = cpx; + cpy2 = cpy; + } + break; + } + nargs = 0; + } + } + else { + cmd = item[0]; + if (cmd == 'M' || cmd == 'm') { + // Commit path. + if (p->npts > 0) + nsvg__addPath(p, closedFlag); + // Start new subpath. + nsvg__resetPath(p); + closedFlag = 0; + nargs = 0; + } + else if (initPoint == 0) { + // Do not allow other commands until initial point has been set (moveTo called once). + cmd = '\0'; + } + if (cmd == 'Z' || cmd == 'z') { + closedFlag = 1; + // Commit path. + if (p->npts > 0) { + // Move current point to first point + cpx = p->pts[0]; + cpy = p->pts[1]; + cpx2 = cpx; + cpy2 = cpy; + nsvg__addPath(p, closedFlag); + } + // Start new subpath. + nsvg__resetPath(p); + nsvg__moveTo(p, cpx, cpy); + closedFlag = 0; + nargs = 0; + } + rargs = nsvg__getArgsPerElement(cmd); + if (rargs == -1) { + // Command not recognized + cmd = '\0'; + rargs = 0; + } + } + } + // Commit path. + if (p->npts) + nsvg__addPath(p, closedFlag); + } + + nsvg__addShape(p); +} + +static void nsvg__parseRect(NSVGparser *p, const char **attr) +{ + float x = 0.0f; + float y = 0.0f; + float w = 0.0f; + float h = 0.0f; + float rx = -1.0f; // marks not set + float ry = -1.0f; + int i; + + for (i = 0; attr[i]; i += 2) { + if (!nsvg__parseAttr(p, attr[i], attr[i + 1])) { + if (strcmp(attr[i], "x") == 0) + x = nsvg__parseCoordinate(p, attr[i + 1], nsvg__actualOrigX(p), nsvg__actualWidth(p)); + if (strcmp(attr[i], "y") == 0) + y = nsvg__parseCoordinate(p, attr[i + 1], nsvg__actualOrigY(p), nsvg__actualHeight(p)); + if (strcmp(attr[i], "width") == 0) + w = nsvg__parseCoordinate(p, attr[i + 1], 0.0f, nsvg__actualWidth(p)); + if (strcmp(attr[i], "height") == 0) + h = nsvg__parseCoordinate(p, attr[i + 1], 0.0f, nsvg__actualHeight(p)); + if (strcmp(attr[i], "rx") == 0) + rx = fabsf(nsvg__parseCoordinate(p, attr[i + 1], 0.0f, nsvg__actualWidth(p))); + if (strcmp(attr[i], "ry") == 0) + ry = fabsf(nsvg__parseCoordinate(p, attr[i + 1], 0.0f, nsvg__actualHeight(p))); + } + } + + if (rx < 0.0f && ry > 0.0f) + rx = ry; + if (ry < 0.0f && rx > 0.0f) + ry = rx; + if (rx < 0.0f) + rx = 0.0f; + if (ry < 0.0f) + ry = 0.0f; + if (rx > w / 2.0f) + rx = w / 2.0f; + if (ry > h / 2.0f) + ry = h / 2.0f; + + if (w != 0.0f && h != 0.0f) { + nsvg__resetPath(p); + + if (rx < 0.00001f || ry < 0.0001f) { + nsvg__moveTo(p, x, y); + nsvg__lineTo(p, x + w, y); + nsvg__lineTo(p, x + w, y + h); + nsvg__lineTo(p, x, y + h); + } + else { + // Rounded rectangle + nsvg__moveTo(p, x + rx, y); + nsvg__lineTo(p, x + w - rx, y); + nsvg__cubicBezTo(p, + x + w - rx * (1 - NSVG_KAPPA90), + y, + x + w, + y + ry * (1 - NSVG_KAPPA90), + x + w, + y + ry); + nsvg__lineTo(p, x + w, y + h - ry); + nsvg__cubicBezTo(p, + x + w, + y + h - ry * (1 - NSVG_KAPPA90), + x + w - rx * (1 - NSVG_KAPPA90), + y + h, + x + w - rx, + y + h); + nsvg__lineTo(p, x + rx, y + h); + nsvg__cubicBezTo(p, + x + rx * (1 - NSVG_KAPPA90), + y + h, + x, + y + h - ry * (1 - NSVG_KAPPA90), + x, + y + h - ry); + nsvg__lineTo(p, x, y + ry); + nsvg__cubicBezTo( + p, x, y + ry * (1 - NSVG_KAPPA90), x + rx * (1 - NSVG_KAPPA90), y, x + rx, y); + } + + nsvg__addPath(p, 1); + + nsvg__addShape(p); + } +} + +static void nsvg__parseCircle(NSVGparser *p, const char **attr) +{ + float cx = 0.0f; + float cy = 0.0f; + float r = 0.0f; + int i; + + for (i = 0; attr[i]; i += 2) { + if (!nsvg__parseAttr(p, attr[i], attr[i + 1])) { + if (strcmp(attr[i], "cx") == 0) + cx = nsvg__parseCoordinate(p, attr[i + 1], nsvg__actualOrigX(p), nsvg__actualWidth(p)); + if (strcmp(attr[i], "cy") == 0) + cy = nsvg__parseCoordinate(p, attr[i + 1], nsvg__actualOrigY(p), nsvg__actualHeight(p)); + if (strcmp(attr[i], "r") == 0) + r = fabsf(nsvg__parseCoordinate(p, attr[i + 1], 0.0f, nsvg__actualLength(p))); + } + } + + if (r > 0.0f) { + nsvg__resetPath(p); + + nsvg__moveTo(p, cx + r, cy); + nsvg__cubicBezTo(p, cx + r, cy + r * NSVG_KAPPA90, cx + r * NSVG_KAPPA90, cy + r, cx, cy + r); + nsvg__cubicBezTo(p, cx - r * NSVG_KAPPA90, cy + r, cx - r, cy + r * NSVG_KAPPA90, cx - r, cy); + nsvg__cubicBezTo(p, cx - r, cy - r * NSVG_KAPPA90, cx - r * NSVG_KAPPA90, cy - r, cx, cy - r); + nsvg__cubicBezTo(p, cx + r * NSVG_KAPPA90, cy - r, cx + r, cy - r * NSVG_KAPPA90, cx + r, cy); + + nsvg__addPath(p, 1); + + nsvg__addShape(p); + } +} + +static void nsvg__parseEllipse(NSVGparser *p, const char **attr) +{ + float cx = 0.0f; + float cy = 0.0f; + float rx = 0.0f; + float ry = 0.0f; + int i; + + for (i = 0; attr[i]; i += 2) { + if (!nsvg__parseAttr(p, attr[i], attr[i + 1])) { + if (strcmp(attr[i], "cx") == 0) + cx = nsvg__parseCoordinate(p, attr[i + 1], nsvg__actualOrigX(p), nsvg__actualWidth(p)); + if (strcmp(attr[i], "cy") == 0) + cy = nsvg__parseCoordinate(p, attr[i + 1], nsvg__actualOrigY(p), nsvg__actualHeight(p)); + if (strcmp(attr[i], "rx") == 0) + rx = fabsf(nsvg__parseCoordinate(p, attr[i + 1], 0.0f, nsvg__actualWidth(p))); + if (strcmp(attr[i], "ry") == 0) + ry = fabsf(nsvg__parseCoordinate(p, attr[i + 1], 0.0f, nsvg__actualHeight(p))); + } + } + + if (rx > 0.0f && ry > 0.0f) { + + nsvg__resetPath(p); + + nsvg__moveTo(p, cx + rx, cy); + nsvg__cubicBezTo( + p, cx + rx, cy + ry * NSVG_KAPPA90, cx + rx * NSVG_KAPPA90, cy + ry, cx, cy + ry); + nsvg__cubicBezTo( + p, cx - rx * NSVG_KAPPA90, cy + ry, cx - rx, cy + ry * NSVG_KAPPA90, cx - rx, cy); + nsvg__cubicBezTo( + p, cx - rx, cy - ry * NSVG_KAPPA90, cx - rx * NSVG_KAPPA90, cy - ry, cx, cy - ry); + nsvg__cubicBezTo( + p, cx + rx * NSVG_KAPPA90, cy - ry, cx + rx, cy - ry * NSVG_KAPPA90, cx + rx, cy); + + nsvg__addPath(p, 1); + + nsvg__addShape(p); + } +} + +static void nsvg__parseLine(NSVGparser *p, const char **attr) +{ + float x1 = 0.0; + float y1 = 0.0; + float x2 = 0.0; + float y2 = 0.0; + int i; + + for (i = 0; attr[i]; i += 2) { + if (!nsvg__parseAttr(p, attr[i], attr[i + 1])) { + if (strcmp(attr[i], "x1") == 0) + x1 = nsvg__parseCoordinate(p, attr[i + 1], nsvg__actualOrigX(p), nsvg__actualWidth(p)); + if (strcmp(attr[i], "y1") == 0) + y1 = nsvg__parseCoordinate(p, attr[i + 1], nsvg__actualOrigY(p), nsvg__actualHeight(p)); + if (strcmp(attr[i], "x2") == 0) + x2 = nsvg__parseCoordinate(p, attr[i + 1], nsvg__actualOrigX(p), nsvg__actualWidth(p)); + if (strcmp(attr[i], "y2") == 0) + y2 = nsvg__parseCoordinate(p, attr[i + 1], nsvg__actualOrigY(p), nsvg__actualHeight(p)); + } + } + + nsvg__resetPath(p); + + nsvg__moveTo(p, x1, y1); + nsvg__lineTo(p, x2, y2); + + nsvg__addPath(p, 0); + + nsvg__addShape(p); +} + +static void nsvg__parsePoly(NSVGparser *p, const char **attr, int closeFlag) +{ + int i; + const char *s; + float args[2]; + int nargs, npts = 0; + char item[64]; + + nsvg__resetPath(p); + + for (i = 0; attr[i]; i += 2) { + if (!nsvg__parseAttr(p, attr[i], attr[i + 1])) { + if (strcmp(attr[i], "points") == 0) { + s = attr[i + 1]; + nargs = 0; + while (*s) { + s = nsvg__getNextPathItem(s, item); + args[nargs++] = (float)nsvg__atof(item); + if (nargs >= 2) { + if (npts == 0) + nsvg__moveTo(p, args[0], args[1]); + else + nsvg__lineTo(p, args[0], args[1]); + nargs = 0; + npts++; + } + } + } + } + } + + nsvg__addPath(p, (char)closeFlag); + + nsvg__addShape(p); +} + +static void nsvg__parseSVG(NSVGparser *p, const char **attr) +{ + int i; + for (i = 0; attr[i]; i += 2) { + if (!nsvg__parseAttr(p, attr[i], attr[i + 1])) { + if (strcmp(attr[i], "width") == 0) { + p->image->width = nsvg__parseCoordinate(p, attr[i + 1], 0.0f, 0.0f); + } + else if (strcmp(attr[i], "height") == 0) { + p->image->height = nsvg__parseCoordinate(p, attr[i + 1], 0.0f, 0.0f); + } + else if (strcmp(attr[i], "viewBox") == 0) { + const char *s = attr[i + 1]; + char buf[64]; + s = nsvg__parseNumber(s, buf, 64); + p->viewMinx = nsvg__atof(buf); + while (*s && (nsvg__isspace(*s) || *s == '%' || *s == ',')) + s++; + if (!*s) + return; + s = nsvg__parseNumber(s, buf, 64); + p->viewMiny = nsvg__atof(buf); + while (*s && (nsvg__isspace(*s) || *s == '%' || *s == ',')) + s++; + if (!*s) + return; + s = nsvg__parseNumber(s, buf, 64); + p->viewWidth = nsvg__atof(buf); + while (*s && (nsvg__isspace(*s) || *s == '%' || *s == ',')) + s++; + if (!*s) + return; + s = nsvg__parseNumber(s, buf, 64); + p->viewHeight = nsvg__atof(buf); + } + else if (strcmp(attr[i], "preserveAspectRatio") == 0) { + if (strstr(attr[i + 1], "none") != 0) { + // No uniform scaling + p->alignType = NSVG_ALIGN_NONE; + } + else { + // Parse X align + if (strstr(attr[i + 1], "xMin") != 0) + p->alignX = NSVG_ALIGN_MIN; + else if (strstr(attr[i + 1], "xMid") != 0) + p->alignX = NSVG_ALIGN_MID; + else if (strstr(attr[i + 1], "xMax") != 0) + p->alignX = NSVG_ALIGN_MAX; + // Parse X align + if (strstr(attr[i + 1], "yMin") != 0) + p->alignY = NSVG_ALIGN_MIN; + else if (strstr(attr[i + 1], "yMid") != 0) + p->alignY = NSVG_ALIGN_MID; + else if (strstr(attr[i + 1], "yMax") != 0) + p->alignY = NSVG_ALIGN_MAX; + // Parse meet/slice + p->alignType = NSVG_ALIGN_MEET; + if (strstr(attr[i + 1], "slice") != 0) + p->alignType = NSVG_ALIGN_SLICE; + } + } + } + } +} + +static void nsvg__parseGradient(NSVGparser *p, const char **attr, char type) +{ + int i; + NSVGgradientData *grad = (NSVGgradientData *)malloc(sizeof(NSVGgradientData)); + if (grad == NULL) + return; + memset(grad, 0, sizeof(NSVGgradientData)); + grad->units = NSVG_OBJECT_SPACE; + grad->type = type; + if (grad->type == NSVG_PAINT_LINEAR_GRADIENT) { + grad->linear.x1 = nsvg__coord(0.0f, NSVG_UNITS_PERCENT); + grad->linear.y1 = nsvg__coord(0.0f, NSVG_UNITS_PERCENT); + grad->linear.x2 = nsvg__coord(100.0f, NSVG_UNITS_PERCENT); + grad->linear.y2 = nsvg__coord(0.0f, NSVG_UNITS_PERCENT); + } + else if (grad->type == NSVG_PAINT_RADIAL_GRADIENT) { + grad->radial.cx = nsvg__coord(50.0f, NSVG_UNITS_PERCENT); + grad->radial.cy = nsvg__coord(50.0f, NSVG_UNITS_PERCENT); + grad->radial.r = nsvg__coord(50.0f, NSVG_UNITS_PERCENT); + } + + nsvg__xformIdentity(grad->xform); + + for (i = 0; attr[i]; i += 2) { + if (strcmp(attr[i], "id") == 0) { + strncpy(grad->id, attr[i + 1], 63); + grad->id[63] = '\0'; + } + else if (!nsvg__parseAttr(p, attr[i], attr[i + 1])) { + if (strcmp(attr[i], "gradientUnits") == 0) { + if (strcmp(attr[i + 1], "objectBoundingBox") == 0) + grad->units = NSVG_OBJECT_SPACE; + else + grad->units = NSVG_USER_SPACE; + } + else if (strcmp(attr[i], "gradientTransform") == 0) { + nsvg__parseTransform(grad->xform, attr[i + 1]); + } + else if (strcmp(attr[i], "cx") == 0) { + grad->radial.cx = nsvg__parseCoordinateRaw(attr[i + 1]); + } + else if (strcmp(attr[i], "cy") == 0) { + grad->radial.cy = nsvg__parseCoordinateRaw(attr[i + 1]); + } + else if (strcmp(attr[i], "r") == 0) { + grad->radial.r = nsvg__parseCoordinateRaw(attr[i + 1]); + } + else if (strcmp(attr[i], "fx") == 0) { + grad->radial.fx = nsvg__parseCoordinateRaw(attr[i + 1]); + } + else if (strcmp(attr[i], "fy") == 0) { + grad->radial.fy = nsvg__parseCoordinateRaw(attr[i + 1]); + } + else if (strcmp(attr[i], "x1") == 0) { + grad->linear.x1 = nsvg__parseCoordinateRaw(attr[i + 1]); + } + else if (strcmp(attr[i], "y1") == 0) { + grad->linear.y1 = nsvg__parseCoordinateRaw(attr[i + 1]); + } + else if (strcmp(attr[i], "x2") == 0) { + grad->linear.x2 = nsvg__parseCoordinateRaw(attr[i + 1]); + } + else if (strcmp(attr[i], "y2") == 0) { + grad->linear.y2 = nsvg__parseCoordinateRaw(attr[i + 1]); + } + else if (strcmp(attr[i], "spreadMethod") == 0) { + if (strcmp(attr[i + 1], "pad") == 0) + grad->spread = NSVG_SPREAD_PAD; + else if (strcmp(attr[i + 1], "reflect") == 0) + grad->spread = NSVG_SPREAD_REFLECT; + else if (strcmp(attr[i + 1], "repeat") == 0) + grad->spread = NSVG_SPREAD_REPEAT; + } + else if (strcmp(attr[i], "xlink:href") == 0) { + const char *href = attr[i + 1]; + strncpy(grad->ref, href + 1, 62); + grad->ref[62] = '\0'; + } + } + } + + grad->next = p->gradients; + p->gradients = grad; +} + +static void nsvg__parseGradientStop(NSVGparser *p, const char **attr) +{ + NSVGattrib *curAttr = nsvg__getAttr(p); + NSVGgradientData *grad; + NSVGgradientStop *stop; + int i, idx; + + curAttr->stopOffset = 0; + curAttr->stopColor = 0; + curAttr->stopOpacity = 1.0f; + + for (i = 0; attr[i]; i += 2) { + nsvg__parseAttr(p, attr[i], attr[i + 1]); + } + + // Add stop to the last gradient. + grad = p->gradients; + if (grad == NULL) + return; + + grad->nstops++; + grad->stops = (NSVGgradientStop *)realloc(grad->stops, sizeof(NSVGgradientStop) * grad->nstops); + if (grad->stops == NULL) + return; + + // Insert + idx = grad->nstops - 1; + for (i = 0; i < grad->nstops - 1; i++) { + if (curAttr->stopOffset < grad->stops[i].offset) { + idx = i; + break; + } + } + if (idx != grad->nstops - 1) { + for (i = grad->nstops - 1; i > idx; i--) + grad->stops[i] = grad->stops[i - 1]; + } + + stop = &grad->stops[idx]; + stop->color = curAttr->stopColor; + stop->color |= (unsigned int)(curAttr->stopOpacity * 255) << 24; + stop->offset = curAttr->stopOffset; +} + +static void nsvg__startElement(void *ud, const char *el, const char **attr) +{ + NSVGparser *p = (NSVGparser *)ud; + + if (p->defsFlag) { + // Skip everything but gradients in defs + if (strcmp(el, "linearGradient") == 0) { + nsvg__parseGradient(p, attr, NSVG_PAINT_LINEAR_GRADIENT); + } + else if (strcmp(el, "radialGradient") == 0) { + nsvg__parseGradient(p, attr, NSVG_PAINT_RADIAL_GRADIENT); + } + else if (strcmp(el, "stop") == 0) { + nsvg__parseGradientStop(p, attr); + } + return; + } + + if (strcmp(el, "g") == 0) { + nsvg__pushAttr(p); + nsvg__parseAttribs(p, attr); + + /* Save the breadcrumb of groups. */ + if (p->breadcrumb_len < NSVG_MAX_BREADCRUMB) { + NSVGattrib *attr_id = nsvg__getAttr(p); + memcpy( + p->breadcrumb[p->breadcrumb_len], attr_id->id, sizeof(p->breadcrumb[p->breadcrumb_len])); + p->breadcrumb_len++; + } + } + else if (strcmp(el, "path") == 0) { + if (p->pathFlag) // Do not allow nested paths. + return; + nsvg__pushAttr(p); + nsvg__parsePath(p, attr); + nsvg__popAttr(p); + } + else if (strcmp(el, "rect") == 0) { + nsvg__pushAttr(p); + nsvg__parseRect(p, attr); + nsvg__popAttr(p); + } + else if (strcmp(el, "circle") == 0) { + nsvg__pushAttr(p); + nsvg__parseCircle(p, attr); + nsvg__popAttr(p); + } + else if (strcmp(el, "ellipse") == 0) { + nsvg__pushAttr(p); + nsvg__parseEllipse(p, attr); + nsvg__popAttr(p); + } + else if (strcmp(el, "line") == 0) { + nsvg__pushAttr(p); + nsvg__parseLine(p, attr); + nsvg__popAttr(p); + } + else if (strcmp(el, "polyline") == 0) { + nsvg__pushAttr(p); + nsvg__parsePoly(p, attr, 0); + nsvg__popAttr(p); + } + else if (strcmp(el, "polygon") == 0) { + nsvg__pushAttr(p); + nsvg__parsePoly(p, attr, 1); + nsvg__popAttr(p); + } + else if (strcmp(el, "linearGradient") == 0) { + nsvg__parseGradient(p, attr, NSVG_PAINT_LINEAR_GRADIENT); + } + else if (strcmp(el, "radialGradient") == 0) { + nsvg__parseGradient(p, attr, NSVG_PAINT_RADIAL_GRADIENT); + } + else if (strcmp(el, "stop") == 0) { + nsvg__parseGradientStop(p, attr); + } + else if (strcmp(el, "defs") == 0) { + p->defsFlag = 1; + } + else if (strcmp(el, "svg") == 0) { + nsvg__parseSVG(p, attr); + } +} + +static void nsvg__endElement(void *ud, const char *el) +{ + NSVGparser *p = (NSVGparser *)ud; + + if (strcmp(el, "g") == 0) { + /* Remove the breadcrumb level. */ + if (p->breadcrumb_len > 0) { + p->breadcrumb[p->breadcrumb_len - 1][0] = '\0'; + p->breadcrumb_len--; + } + + nsvg__popAttr(p); + } + else if (strcmp(el, "path") == 0) { + p->pathFlag = 0; + } + else if (strcmp(el, "defs") == 0) { + p->defsFlag = 0; + } +} + +static void nsvg__content(void *ud, const char *s) +{ + NSVG_NOTUSED(ud); + NSVG_NOTUSED(s); + // empty +} + +static void nsvg__imageBounds(NSVGparser *p, float *bounds) +{ + NSVGshape *shape; + shape = p->image->shapes; + if (shape == NULL) { + bounds[0] = bounds[1] = bounds[2] = bounds[3] = 0.0; + return; + } + bounds[0] = shape->bounds[0]; + bounds[1] = shape->bounds[1]; + bounds[2] = shape->bounds[2]; + bounds[3] = shape->bounds[3]; + for (shape = shape->next; shape != NULL; shape = shape->next) { + bounds[0] = nsvg__minf(bounds[0], shape->bounds[0]); + bounds[1] = nsvg__minf(bounds[1], shape->bounds[1]); + bounds[2] = nsvg__maxf(bounds[2], shape->bounds[2]); + bounds[3] = nsvg__maxf(bounds[3], shape->bounds[3]); + } +} + +static float nsvg__viewAlign(float content, float container, int type) +{ + if (type == NSVG_ALIGN_MIN) + return 0; + else if (type == NSVG_ALIGN_MAX) + return container - content; + // mid + return (container - content) * 0.5f; +} + +static void nsvg__scaleGradient(NSVGgradient *grad, float tx, float ty, float sx, float sy) +{ + float t[6]; + nsvg__xformSetTranslation(t, tx, ty); + nsvg__xformMultiply(grad->xform, t); + + nsvg__xformSetScale(t, sx, sy); + nsvg__xformMultiply(grad->xform, t); +} + +static void nsvg__scaleToViewbox(NSVGparser *p, const char *units) +{ + NSVGshape *shape; + NSVGpath *path; + float tx, ty, sx, sy, us, bounds[4], t[6], avgs; + int i; + float *pt; + + // Guess image size if not set completely. + nsvg__imageBounds(p, bounds); + + if (p->viewWidth == 0) { + if (p->image->width > 0) { + p->viewWidth = p->image->width; + } + else { + p->viewMinx = bounds[0]; + p->viewWidth = bounds[2] - bounds[0]; + } + } + if (p->viewHeight == 0) { + if (p->image->height > 0) { + p->viewHeight = p->image->height; + } + else { + p->viewMiny = bounds[1]; + p->viewHeight = bounds[3] - bounds[1]; + } + } + if (p->image->width == 0) + p->image->width = p->viewWidth; + if (p->image->height == 0) + p->image->height = p->viewHeight; + + tx = -p->viewMinx; + ty = -p->viewMiny; + sx = p->viewWidth > 0 ? p->image->width / p->viewWidth : 0; + sy = p->viewHeight > 0 ? p->image->height / p->viewHeight : 0; + // Unit scaling + us = 1.0f / nsvg__convertToPixels(p, nsvg__coord(1.0f, nsvg__parseUnits(units)), 0.0f, 1.0f); + + // Fix aspect ratio + if (p->alignType == NSVG_ALIGN_MEET) { + // fit whole image into viewbox + sx = sy = nsvg__minf(sx, sy); + tx += nsvg__viewAlign(p->viewWidth * sx, p->image->width, p->alignX) / sx; + ty += nsvg__viewAlign(p->viewHeight * sy, p->image->height, p->alignY) / sy; + } + else if (p->alignType == NSVG_ALIGN_SLICE) { + // fill whole viewbox with image + sx = sy = nsvg__maxf(sx, sy); + tx += nsvg__viewAlign(p->viewWidth * sx, p->image->width, p->alignX) / sx; + ty += nsvg__viewAlign(p->viewHeight * sy, p->image->height, p->alignY) / sy; + } + + // Transform + sx *= us; + sy *= us; + avgs = (sx + sy) / 2.0f; + for (shape = p->image->shapes; shape != NULL; shape = shape->next) { + shape->bounds[0] = (shape->bounds[0] + tx) * sx; + shape->bounds[1] = (shape->bounds[1] + ty) * sy; + shape->bounds[2] = (shape->bounds[2] + tx) * sx; + shape->bounds[3] = (shape->bounds[3] + ty) * sy; + for (path = shape->paths; path != NULL; path = path->next) { + path->bounds[0] = (path->bounds[0] + tx) * sx; + path->bounds[1] = (path->bounds[1] + ty) * sy; + path->bounds[2] = (path->bounds[2] + tx) * sx; + path->bounds[3] = (path->bounds[3] + ty) * sy; + for (i = 0; i < path->npts; i++) { + pt = &path->pts[i * 2]; + pt[0] = (pt[0] + tx) * sx; + pt[1] = (pt[1] + ty) * sy; + } + } + + if (shape->fill.type == NSVG_PAINT_LINEAR_GRADIENT || + shape->fill.type == NSVG_PAINT_RADIAL_GRADIENT) { + nsvg__scaleGradient(shape->fill.gradient, tx, ty, sx, sy); + memcpy(t, shape->fill.gradient->xform, sizeof(float) * 6); + nsvg__xformInverse(shape->fill.gradient->xform, t); + } + if (shape->stroke.type == NSVG_PAINT_LINEAR_GRADIENT || + shape->stroke.type == NSVG_PAINT_RADIAL_GRADIENT) { + nsvg__scaleGradient(shape->stroke.gradient, tx, ty, sx, sy); + memcpy(t, shape->stroke.gradient->xform, sizeof(float) * 6); + nsvg__xformInverse(shape->stroke.gradient->xform, t); + } + + shape->strokeWidth *= avgs; + shape->strokeDashOffset *= avgs; + for (i = 0; i < shape->strokeDashCount; i++) + shape->strokeDashArray[i] *= avgs; + } +} + +NSVGimage *nsvgParse(char *input, const char *units, float dpi) +{ + NSVGparser *p; + NSVGimage *ret = 0; + + p = nsvg__createParser(); + if (p == NULL) { + return NULL; + } + p->dpi = dpi; + + nsvg__parseXML(input, nsvg__startElement, nsvg__endElement, nsvg__content, p); + + // Scale to viewBox + nsvg__scaleToViewbox(p, units); + + ret = p->image; + p->image = NULL; + + nsvg__deleteParser(p); + + return ret; +} + +NSVGimage *nsvgParseFromFile(const char *filename, const char *units, float dpi) +{ + FILE *fp = NULL; + size_t size; + char *data = NULL; + NSVGimage *image = NULL; + + fp = fopen(filename, "rb"); + if (!fp) + goto error; + fseek(fp, 0, SEEK_END); + size = ftell(fp); + fseek(fp, 0, SEEK_SET); + data = (char *)malloc(size + 1); + if (data == NULL) + goto error; + if (fread(data, 1, size, fp) != size) + goto error; + data[size] = '\0'; // Must be null terminated. + fclose(fp); + image = nsvgParse(data, units, dpi); + free(data); + + return image; + +error: + if (fp) + fclose(fp); + if (data) + free(data); + if (image) + nsvgDelete(image); + return NULL; +} + +NSVGpath *nsvgDuplicatePath(NSVGpath *p) +{ + NSVGpath *res = NULL; + + if (p == NULL) + return NULL; + + res = (NSVGpath *)malloc(sizeof(NSVGpath)); + if (res == NULL) + goto error; + memset(res, 0, sizeof(NSVGpath)); + + res->pts = (float *)malloc(p->npts * 2 * sizeof(float)); + if (res->pts == NULL) + goto error; + memcpy(res->pts, p->pts, p->npts * sizeof(float) * 2); + res->npts = p->npts; + + memcpy(res->bounds, p->bounds, sizeof(p->bounds)); + + res->closed = p->closed; + + return res; + +error: + if (res != NULL) { + free(res->pts); + free(res); + } + return NULL; +} + +void nsvgDelete(NSVGimage *image) +{ + NSVGshape *snext, *shape; + if (image == NULL) + return; + shape = image->shapes; + while (shape != NULL) { + snext = shape->next; + nsvg__deletePaths(shape->paths); + nsvg__deletePaint(&shape->fill); + nsvg__deletePaint(&shape->stroke); + free(shape); + shape = snext; + } + free(image); +} + +#endif diff --git a/source/blender/python/intern/CMakeLists.txt b/source/blender/python/intern/CMakeLists.txt index c7816aed3c1..9ac8d4d9f47 100644 --- a/source/blender/python/intern/CMakeLists.txt +++ b/source/blender/python/intern/CMakeLists.txt @@ -363,4 +363,12 @@ if(WITH_POTRACE) add_definitions(-DWITH_POTRACE) endif() +if(WITH_PUGIXML) + add_definitions(-DWITH_PUGIXML) +endif() + +if(WITH_HARU) + add_definitions(-DWITH_HARU) +endif() + blender_add_lib(bf_python "${SRC}" "${INC}" "${INC_SYS}" "${LIB}") diff --git a/source/blender/python/intern/bpy_app_build_options.c b/source/blender/python/intern/bpy_app_build_options.c index 9f12c9f80f1..676d1b8045f 100644 --- a/source/blender/python/intern/bpy_app_build_options.c +++ b/source/blender/python/intern/bpy_app_build_options.c @@ -65,6 +65,8 @@ static PyStructSequence_Field app_builtopts_info_fields[] = { {"fluid", NULL}, {"xr_openxr", NULL}, {"potrace", NULL}, + {"pugixml", NULL}, + {"haru", NULL}, /* Sentinel (this line prevents `clang-format` wrapping into columns). */ {NULL}, }; @@ -311,6 +313,18 @@ static PyObject *make_builtopts_info(void) SetObjIncref(Py_False); #endif +#ifdef WITH_PUGIXML + SetObjIncref(Py_True); +#else + SetObjIncref(Py_False); +#endif + +#ifdef WITH_HARU + SetObjIncref(Py_True); +#else + SetObjIncref(Py_False); +#endif + #undef SetObjIncref return builtopts_info; |