diff options
Diffstat (limited to 'source/blender/editors/gpencil/drawgpencil.c')
| -rw-r--r-- | source/blender/editors/gpencil/drawgpencil.c | 1170 |
1 files changed, 572 insertions, 598 deletions
diff --git a/source/blender/editors/gpencil/drawgpencil.c b/source/blender/editors/gpencil/drawgpencil.c index 100e2dc8295..4a95027528b 100644 --- a/source/blender/editors/gpencil/drawgpencil.c +++ b/source/blender/editors/gpencil/drawgpencil.c @@ -60,9 +60,11 @@ #include "WM_api.h" -#include "BIF_gl.h" #include "BIF_glutil.h" +#include "GPU_immediate.h" +#include "GPU_draw.h" + #include "ED_gpencil.h" #include "ED_screen.h" #include "ED_view3d.h" @@ -92,99 +94,194 @@ typedef enum eDrawStrokeFlags { /* thickness above which we should use special drawing */ +#if 0 #define GP_DRAWTHICKNESS_SPECIAL 3 +#endif + +/* conversion utility (float --> normalized unsigned byte) */ +#define F2UB(x) (unsigned char)(255.0f * x) /* ----- Tool Buffer Drawing ------ */ -/* helper function to set color of buffer point */ -static void gp_set_tpoint_color(tGPspoint *pt, float ink[4]) +/* helper functions to set color of buffer point */ + +static void gp_set_tpoint_varying_color(const tGPspoint *pt, const float ink[4], unsigned attrib_id) { float alpha = ink[3] * pt->strength; CLAMP(alpha, GPENCIL_STRENGTH_MIN, 1.0f); - glColor4f(ink[0], ink[1], ink[2], alpha); + immAttrib4ub(attrib_id, F2UB(ink[0]), F2UB(ink[1]), F2UB(ink[2]), F2UB(alpha)); } -/* helper function to set color of point */ -static void gp_set_point_color(bGPDspoint *pt, float ink[4]) +static void gp_set_point_uniform_color(const bGPDspoint *pt, const float ink[4]) { float alpha = ink[3] * pt->strength; CLAMP(alpha, GPENCIL_STRENGTH_MIN, 1.0f); - glColor4f(ink[0], ink[1], ink[2], alpha); + immUniformColor3fvAlpha(ink, alpha); } -/* helper function to set color and point */ -static void gp_set_color_and_tpoint(tGPspoint *pt, float ink[4]) +static void gp_set_point_varying_color(const bGPDspoint *pt, const float ink[4], unsigned attrib_id) { - gp_set_tpoint_color(pt, ink); - glVertex2iv(&pt->x); + float alpha = ink[3] * pt->strength; + CLAMP(alpha, GPENCIL_STRENGTH_MIN, 1.0f); + immAttrib4ub(attrib_id, F2UB(ink[0]), F2UB(ink[1]), F2UB(ink[2]), F2UB(alpha)); +} + +/* draw fills for buffer stroke */ +static void gp_draw_stroke_buffer_fill(const tGPspoint *points, int totpoints, float ink[4]) +{ + if (totpoints < 3) { + return; + } + int tot_triangles = totpoints - 2; + /* allocate memory for temporary areas */ + unsigned int(*tmp_triangles)[3] = MEM_mallocN(sizeof(*tmp_triangles) * tot_triangles, "GP Stroke buffer temp triangulation"); + float(*points2d)[2] = MEM_mallocN(sizeof(*points2d) * totpoints, "GP Stroke buffer temp 2d points"); + + /* Convert points to array and triangulate + * Here a cache is not used because while drawing the information changes all the time, so the cache + * would be recalculated constantly, so it is better to do direct calculation for each function call + */ + for (int i = 0; i < totpoints; i++) { + const tGPspoint *pt = &points[i]; + points2d[i][0] = pt->x; + points2d[i][1] = pt->y; + } + BLI_polyfill_calc((const float(*)[2])points2d, (unsigned int)totpoints, 0, (unsigned int(*)[3])tmp_triangles); + + /* draw triangulation data */ + if (tot_triangles > 0) { + Gwn_VertFormat *format = immVertexFormat(); + unsigned int pos = GWN_vertformat_attr_add(format, "pos", GWN_COMP_I32, 2, GWN_FETCH_INT_TO_FLOAT); + unsigned int color = GWN_vertformat_attr_add(format, "color", GWN_COMP_U8, 4, GWN_FETCH_INT_TO_FLOAT_UNIT); + + immBindBuiltinProgram(GPU_SHADER_2D_SMOOTH_COLOR); + + /* Draw all triangles for filling the polygon */ + immBegin(GWN_PRIM_TRIS, tot_triangles * 3); + /* TODO: use batch instead of immediate mode, to share vertices */ + + const tGPspoint *pt; + for (int i = 0; i < tot_triangles; i++) { + /* vertex 1 */ + pt = &points[tmp_triangles[i][0]]; + gp_set_tpoint_varying_color(pt, ink, color); + immVertex2iv(pos, &pt->x); + /* vertex 2 */ + pt = &points[tmp_triangles[i][1]]; + gp_set_tpoint_varying_color(pt, ink, color); + immVertex2iv(pos, &pt->x); + /* vertex 3 */ + pt = &points[tmp_triangles[i][2]]; + gp_set_tpoint_varying_color(pt, ink, color); + immVertex2iv(pos, &pt->x); + } + + immEnd(); + immUnbindProgram(); + } + + /* clear memory */ + if (tmp_triangles) { + MEM_freeN(tmp_triangles); + } + if (points2d) { + MEM_freeN(points2d); + } } /* draw stroke defined in buffer (simple ogl lines/points for now, as dotted lines) */ -static void gp_draw_stroke_buffer(tGPspoint *points, int totpoints, short thickness, - short dflag, short sflag, float ink[4]) +static void gp_draw_stroke_buffer(const tGPspoint *points, int totpoints, short thickness, + short dflag, short sflag, float ink[4], float fill_ink[4]) { - tGPspoint *pt; - int i; - + int draw_points = 0; + /* error checking */ if ((points == NULL) || (totpoints <= 0)) return; - + /* check if buffer can be drawn */ if (dflag & (GP_DRAWDATA_ONLY3D | GP_DRAWDATA_ONLYV2D)) return; - + + if (sflag & GP_STROKE_ERASER) { + /* don't draw stroke at all! */ + return; + } + + Gwn_VertFormat *format = immVertexFormat(); + unsigned int pos = GWN_vertformat_attr_add(format, "pos", GWN_COMP_I32, 2, GWN_FETCH_INT_TO_FLOAT); + unsigned int color = GWN_vertformat_attr_add(format, "color", GWN_COMP_U8, 4, GWN_FETCH_INT_TO_FLOAT_UNIT); + + const tGPspoint *pt = points; + if (totpoints == 1) { /* if drawing a single point, draw it larger */ glPointSize((float)(thickness + 2) * points->pressure); - glBegin(GL_POINTS); - - gp_set_color_and_tpoint(points, ink); - glEnd(); - } - else if (sflag & GP_STROKE_ERASER) { - /* don't draw stroke at all! */ + immBindBuiltinProgram(GPU_SHADER_3D_POINT_FIXED_SIZE_VARYING_COLOR); + immBegin(GWN_PRIM_POINTS, 1); + gp_set_tpoint_varying_color(pt, ink, color); + immVertex2iv(pos, &pt->x); } else { float oldpressure = points[0].pressure; - + /* draw stroke curve */ - if (G.debug & G_DEBUG) setlinestyle(2); - glLineWidth(max_ff(oldpressure * thickness, 1.0)); - glBegin(GL_LINE_STRIP); - - for (i = 0, pt = points; i < totpoints && pt; i++, pt++) { + immBindBuiltinProgram(GPU_SHADER_2D_SMOOTH_COLOR); + immBeginAtMost(GWN_PRIM_LINE_STRIP, totpoints); + + /* TODO: implement this with a geometry shader to draw one continuous tapered stroke */ + + for (int i = 0; i < totpoints; i++, pt++) { /* if there was a significant pressure change, stop the curve, change the thickness of the stroke, * and continue drawing again (since line-width cannot change in middle of GL_LINE_STRIP) */ if (fabsf(pt->pressure - oldpressure) > 0.2f) { - glEnd(); + /* need to have 2 points to avoid immEnd assert error */ + if (draw_points < 2) { + gp_set_tpoint_varying_color(pt - 1, ink, color); + immVertex2iv(pos, &(pt - 1)->x); + } + + immEnd(); + draw_points = 0; + glLineWidth(max_ff(pt->pressure * thickness, 1.0f)); - glBegin(GL_LINE_STRIP); - + immBeginAtMost(GWN_PRIM_LINE_STRIP, totpoints - i + 1); + /* need to roll-back one point to ensure that there are no gaps in the stroke */ if (i != 0) { - gp_set_color_and_tpoint((pt - 1), ink); + gp_set_tpoint_varying_color(pt - 1, ink, color); + immVertex2iv(pos, &(pt - 1)->x); + ++draw_points; } - - /* now the point we want... */ - gp_set_color_and_tpoint(pt, ink); - - oldpressure = pt->pressure; - } - else { - gp_set_color_and_tpoint(pt, ink); + + oldpressure = pt->pressure; /* reset our threshold */ } + + /* now the point we want */ + gp_set_tpoint_varying_color(pt, ink, color); + immVertex2iv(pos, &pt->x); + ++draw_points; + } + /* need to have 2 points to avoid immEnd assert error */ + if (draw_points < 2) { + gp_set_tpoint_varying_color(pt - 1, ink, color); + immVertex2iv(pos, &(pt - 1)->x); } - glEnd(); + } + + immEnd(); + immUnbindProgram(); - if (G.debug & G_DEBUG) setlinestyle(0); + // draw fill + if (fill_ink[3] > GPENCIL_ALPHA_OPACITY_THRESH) { + gp_draw_stroke_buffer_fill(points, totpoints, fill_ink); } } /* --------- 2D Stroke Drawing Helpers --------- */ /* change in parameter list */ -static void gp_calc_2d_stroke_fxy(float pt[3], short sflag, int offsx, int offsy, int winx, int winy, float r_co[2]) +static void gp_calc_2d_stroke_fxy(const float pt[3], short sflag, int offsx, int offsy, int winx, int winy, float r_co[2]) { if (sflag & GP_STROKE_2DSPACE) { r_co[0] = pt[0]; @@ -210,203 +307,141 @@ static void gp_calc_2d_stroke_fxy(float pt[3], short sflag, int offsx, int offsy /* draw a 2D buffer stroke in "volumetric" style * NOTE: the stroke buffer doesn't have any coordinate offsets/transforms */ -static void gp_draw_stroke_volumetric_buffer(tGPspoint *points, int totpoints, short thickness, - short dflag, short UNUSED(sflag), float ink[4]) +static void gp_draw_stroke_volumetric_buffer(const tGPspoint *points, int totpoints, short thickness, + short dflag, const float ink[4]) { - GLUquadricObj *qobj = gluNewQuadric(); - float modelview[4][4]; - - tGPspoint *pt; - int i; - /* error checking */ if ((points == NULL) || (totpoints <= 0)) return; - + /* check if buffer can be drawn */ if (dflag & (GP_DRAWDATA_ONLY3D | GP_DRAWDATA_ONLYV2D)) return; - - /* get basic matrix - should be camera space (i.e "identity") */ - glGetFloatv(GL_MODELVIEW_MATRIX, (float *)modelview); - - /* draw points */ - glPushMatrix(); - - for (i = 0, pt = points; i < totpoints; i++, pt++) { - /* set the transformed position */ - // TODO: scale should change based on zoom level, which requires proper translation mult too! - modelview[3][0] = pt->x; - modelview[3][1] = pt->y; - - glLoadMatrixf((float *)modelview); - - /* draw the disk using the current state... */ - gp_set_tpoint_color(pt, ink); - gluDisk(qobj, 0.0, pt->pressure * thickness, 32, 1); - - - modelview[3][0] = modelview[3][1] = 0.0f; + + Gwn_VertFormat *format = immVertexFormat(); + unsigned int pos = GWN_vertformat_attr_add(format, "pos", GWN_COMP_F32, 2, GWN_FETCH_FLOAT); + unsigned int size = GWN_vertformat_attr_add(format, "size", GWN_COMP_F32, 1, GWN_FETCH_FLOAT); + unsigned int color = GWN_vertformat_attr_add(format, "color", GWN_COMP_U8, 4, GWN_FETCH_INT_TO_FLOAT_UNIT); + + immBindBuiltinProgram(GPU_SHADER_3D_POINT_VARYING_SIZE_VARYING_COLOR); + GPU_enable_program_point_size(); + immBegin(GWN_PRIM_POINTS, totpoints); + + const tGPspoint *pt = points; + for (int i = 0; i < totpoints; i++, pt++) { + gp_set_tpoint_varying_color(pt, ink, color); + immAttrib1f(size, pt->pressure * thickness); /* TODO: scale based on view transform (zoom level) */ + immVertex2f(pos, pt->x, pt->y); } - glPopMatrix(); - gluDeleteQuadric(qobj); + immEnd(); + immUnbindProgram(); + GPU_disable_program_point_size(); } /* draw a 2D strokes in "volumetric" style */ -static void gp_draw_stroke_volumetric_2d(bGPDspoint *points, int totpoints, short thickness, - short dflag, short sflag, +static void gp_draw_stroke_volumetric_2d(const bGPDspoint *points, int totpoints, short thickness, + short UNUSED(dflag), short sflag, int offsx, int offsy, int winx, int winy, - float diff_mat[4][4], float ink[4]) + const float diff_mat[4][4], const float ink[4]) { - GLUquadricObj *qobj = gluNewQuadric(); - float modelview[4][4]; - float baseloc[3]; - float scalefac = 1.0f; - - bGPDspoint *pt; - int i; - float fpt[3]; - - /* HACK: We need a scale factor for the drawing in the image editor, - * which seems to use 1 unit as it's maximum size, whereas everything - * else assumes 1 unit = 1 pixel. Otherwise, we only get a massive blob. - */ - if ((dflag & GP_DRAWDATA_IEDITHACK) && (dflag & GP_DRAWDATA_ONLYV2D)) { - scalefac = 0.001f; - } - - /* get basic matrix */ - glGetFloatv(GL_MODELVIEW_MATRIX, (float *)modelview); - copy_v3_v3(baseloc, modelview[3]); - - /* draw points */ - glPushMatrix(); - - for (i = 0, pt = points; i < totpoints; i++, pt++) { - /* color of point */ - gp_set_point_color(pt, ink); - - /* set the transformed position */ + Gwn_VertFormat *format = immVertexFormat(); + unsigned int pos = GWN_vertformat_attr_add(format, "pos", GWN_COMP_F32, 2, GWN_FETCH_FLOAT); + unsigned int size = GWN_vertformat_attr_add(format, "size", GWN_COMP_F32, 1, GWN_FETCH_FLOAT); + unsigned int color = GWN_vertformat_attr_add(format, "color", GWN_COMP_U8, 4, GWN_FETCH_INT_TO_FLOAT_UNIT); + + immBindBuiltinProgram(GPU_SHADER_3D_POINT_VARYING_SIZE_VARYING_COLOR); + GPU_enable_program_point_size(); + immBegin(GWN_PRIM_POINTS, totpoints); + + const bGPDspoint *pt = points; + for (int i = 0; i < totpoints; i++, pt++) { + /* transform position to 2D */ float co[2]; - + float fpt[3]; + mul_v3_m4v3(fpt, diff_mat, &pt->x); gp_calc_2d_stroke_fxy(fpt, sflag, offsx, offsy, winx, winy, co); - translate_m4(modelview, co[0], co[1], 0.0f); - - glLoadMatrixf((float *)modelview); - - /* draw the disk using the current state... */ - gluDisk(qobj, 0.0, pt->pressure * thickness * scalefac, 32, 1); - - /* restore matrix */ - copy_v3_v3(modelview[3], baseloc); + + gp_set_point_varying_color(pt, ink, color); + immAttrib1f(size, pt->pressure * thickness); /* TODO: scale based on view transform */ + immVertex2f(pos, co[0], co[1]); } - - glPopMatrix(); - gluDeleteQuadric(qobj); + + immEnd(); + immUnbindProgram(); + GPU_disable_program_point_size(); } /* draw a 3D stroke in "volumetric" style */ static void gp_draw_stroke_volumetric_3d( - bGPDspoint *points, int totpoints, short thickness, - short UNUSED(dflag), short UNUSED(sflag), float diff_mat[4][4], float ink[4]) + const bGPDspoint *points, int totpoints, short thickness, + const float ink[4]) { - GLUquadricObj *qobj = gluNewQuadric(); - - float base_modelview[4][4], modelview[4][4]; - float base_loc[3]; - - bGPDspoint *pt; - int i; - float fpt[3]; - - /* Get the basic modelview matrix we use for performing calculations */ - glGetFloatv(GL_MODELVIEW_MATRIX, (float *)base_modelview); - copy_v3_v3(base_loc, base_modelview[3]); - - /* Create the basic view-aligned billboard matrix we're going to actually draw qobj with: - * - We need to knock out the rotation so that we are - * simply left with a camera-facing billboard - * - The scale factors here are chosen so that the thickness - * is relatively reasonable. Otherwise, it gets far too - * large! - */ - scale_m4_fl(modelview, 0.1f); - - /* draw each point as a disk... */ - glPushMatrix(); - - for (i = 0, pt = points; i < totpoints && pt; i++, pt++) { - /* color of point */ - gp_set_point_color(pt, ink); - - mul_v3_m4v3(fpt, diff_mat, &pt->x); - - /* apply translation to base_modelview, so that the translated point is put in the right place */ - translate_m4(base_modelview, fpt[0], fpt[1], fpt[2]); - - /* copy the translation component to the billboard matrix we're going to use, - * then reset the base matrix to the original values so that we can do the same - * for the next point without accumulation/pollution effects - */ - copy_v3_v3(modelview[3], base_modelview[3]); /* copy offset value */ - copy_v3_v3(base_modelview[3], base_loc); /* restore */ - - /* apply our billboard matrix for drawing... */ - glLoadMatrixf((float *)modelview); - - /* draw the disk using the current state... */ - gluDisk(qobj, 0.0, pt->pressure * thickness, 32, 1); + Gwn_VertFormat *format = immVertexFormat(); + unsigned int pos = GWN_vertformat_attr_add(format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + unsigned int size = GWN_vertformat_attr_add(format, "size", GWN_COMP_F32, 1, GWN_FETCH_FLOAT); + unsigned int color = GWN_vertformat_attr_add(format, "color", GWN_COMP_U8, 4, GWN_FETCH_INT_TO_FLOAT_UNIT); + + immBindBuiltinProgram(GPU_SHADER_3D_POINT_VARYING_SIZE_VARYING_COLOR); + GPU_enable_program_point_size(); + immBegin(GWN_PRIM_POINTS, totpoints); + + const bGPDspoint *pt = points; + for (int i = 0; i < totpoints && pt; i++, pt++) { + gp_set_point_varying_color(pt, ink, color); + immAttrib1f(size, pt->pressure * thickness); /* TODO: scale based on view transform */ + immVertex3fv(pos, &pt->x); /* we can adjust size in vertex shader based on view/projection! */ } - - glPopMatrix(); - gluDeleteQuadric(qobj); + + immEnd(); + immUnbindProgram(); + GPU_disable_program_point_size(); } /* --------------- Stroke Fills ----------------- */ /* Get points of stroke always flat to view not affected by camera view or view position */ -static void gp_stroke_2d_flat(bGPDspoint *points, int totpoints, float(*points2d)[2], int *r_direction) +static void gp_stroke_2d_flat(const bGPDspoint *points, int totpoints, float(*points2d)[2], int *r_direction) { - bGPDspoint *pt0 = &points[0]; - bGPDspoint *pt1 = &points[1]; - bGPDspoint *pt3 = &points[(int)(totpoints * 0.75)]; - + const bGPDspoint *pt0 = &points[0]; + const bGPDspoint *pt1 = &points[1]; + const bGPDspoint *pt3 = &points[(int)(totpoints * 0.75)]; + float locx[3]; float locy[3]; float loc3[3]; float normal[3]; - + /* local X axis (p0 -> p1) */ sub_v3_v3v3(locx, &pt1->x, &pt0->x); - + /* point vector at 3/4 */ sub_v3_v3v3(loc3, &pt3->x, &pt0->x); - + /* vector orthogonal to polygon plane */ cross_v3_v3v3(normal, locx, loc3); - + /* local Y axis (cross to normal/x axis) */ cross_v3_v3v3(locy, normal, locx); - + /* Normalize vectors */ normalize_v3(locx); normalize_v3(locy); - + /* Get all points in local space */ for (int i = 0; i < totpoints; i++) { - bGPDspoint *pt = &points[i]; + const bGPDspoint *pt = &points[i]; float loc[3]; - + /* Get local space using first point as origin */ sub_v3_v3v3(loc, &pt->x, &pt0->x); - + points2d[i][0] = dot_v3v3(loc, locx); points2d[i][1] = dot_v3v3(loc, locy); } - + /* Concave (-1), Convex (1), or Autodetect (0)? */ *r_direction = (int)locy[2]; } @@ -416,14 +451,14 @@ static void gp_stroke_2d_flat(bGPDspoint *points, int totpoints, float(*points2d static void gp_triangulate_stroke_fill(bGPDstroke *gps) { BLI_assert(gps->totpoints >= 3); - + /* allocate memory for temporary areas */ gps->tot_triangles = gps->totpoints - 2; unsigned int (*tmp_triangles)[3] = MEM_mallocN(sizeof(*tmp_triangles) * gps->tot_triangles, "GP Stroke temp triangulation"); float (*points2d)[2] = MEM_mallocN(sizeof(*points2d) * gps->totpoints, "GP Stroke temp 2d points"); - + int direction = 0; - + /* convert to 2d and triangulate */ gp_stroke_2d_flat(gps->points, gps->totpoints, points2d, &direction); BLI_polyfill_calc(points2d, (unsigned int)gps->totpoints, direction, tmp_triangles); @@ -438,25 +473,24 @@ static void gp_triangulate_stroke_fill(bGPDstroke *gps) else { gps->triangles = MEM_recallocN(gps->triangles, sizeof(*gps->triangles) * gps->tot_triangles); } - + for (int i = 0; i < gps->tot_triangles; i++) { - bGPDtriangle *stroke_triangle = &gps->triangles[i]; - memcpy(stroke_triangle->verts, tmp_triangles[i], sizeof(uint[3])); + memcpy(gps->triangles[i].verts, tmp_triangles[i], sizeof(uint[3])); } } else { /* No triangles needed - Free anything allocated previously */ if (gps->triangles) MEM_freeN(gps->triangles); - + gps->triangles = NULL; } - + /* disable recalculation flag */ if (gps->flag & GP_STROKE_RECALC_CACHES) { gps->flag &= ~GP_STROKE_RECALC_CACHES; } - + /* clear memory */ if (tmp_triangles) MEM_freeN(tmp_triangles); if (points2d) MEM_freeN(points2d); @@ -466,78 +500,64 @@ static void gp_triangulate_stroke_fill(bGPDstroke *gps) /* draw fills for shapes */ static void gp_draw_stroke_fill( bGPdata *gpd, bGPDstroke *gps, - int offsx, int offsy, int winx, int winy, float diff_mat[4][4]) + int offsx, int offsy, int winx, int winy, const float diff_mat[4][4], const float color[4]) { - bGPDpalettecolor *palcolor; - int i; float fpt[3]; BLI_assert(gps->totpoints >= 3); - palcolor = ED_gpencil_stroke_getcolor(gpd, gps); + bGPDpalettecolor *palcolor = ED_gpencil_stroke_getcolor(gpd, gps); /* Triangulation fill if high quality flag is enabled */ if (palcolor->flag & PC_COLOR_HQ_FILL) { - bGPDtriangle *stroke_triangle; - bGPDspoint *pt; - /* Calculate triangles cache for filling area (must be done only after changes) */ if ((gps->flag & GP_STROKE_RECALC_CACHES) || (gps->tot_triangles == 0) || (gps->triangles == NULL)) { gp_triangulate_stroke_fill(gps); } - /* Draw all triangles for filling the polygon (cache must be calculated before) */ BLI_assert(gps->tot_triangles >= 1); - glBegin(GL_TRIANGLES); + + unsigned int pos; if (gps->flag & GP_STROKE_3DSPACE) { - for (i = 0, stroke_triangle = gps->triangles; i < gps->tot_triangles; i++, stroke_triangle++) { + pos = GWN_vertformat_attr_add(immVertexFormat(), "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + immBindBuiltinProgram(GPU_SHADER_3D_UNIFORM_COLOR); + } + else { + pos = GWN_vertformat_attr_add(immVertexFormat(), "pos", GWN_COMP_F32, 2, GWN_FETCH_FLOAT); + immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR); + } + + immUniformColor4fv(color); + + /* Draw all triangles for filling the polygon (cache must be calculated before) */ + immBegin(GWN_PRIM_TRIS, gps->tot_triangles * 3); + /* TODO: use batch instead of immediate mode, to share vertices */ + + bGPDtriangle *stroke_triangle = gps->triangles; + bGPDspoint *pt; + + if (gps->flag & GP_STROKE_3DSPACE) { + for (int i = 0; i < gps->tot_triangles; i++, stroke_triangle++) { for (int j = 0; j < 3; j++) { pt = &gps->points[stroke_triangle->verts[j]]; mul_v3_m4v3(fpt, diff_mat, &pt->x); - glVertex3fv(fpt); + immVertex3fv(pos, fpt); } } } else { - for (i = 0, stroke_triangle = gps->triangles; i < gps->tot_triangles; i++, stroke_triangle++) { + for (int i = 0; i < gps->tot_triangles; i++, stroke_triangle++) { for (int j = 0; j < 3; j++) { float co[2]; pt = &gps->points[stroke_triangle->verts[j]]; mul_v3_m4v3(fpt, diff_mat, &pt->x); gp_calc_2d_stroke_fxy(fpt, gps->flag, offsx, offsy, winx, winy, co); - glVertex2fv(co); + immVertex3fv(pos, fpt); } } } - glEnd(); - } - else { - /* As an initial implementation, we use the OpenGL filled polygon drawing - * here since it's the easiest option to implement for this case. It does - * come with limitations (notably for concave shapes), though it shouldn't - * be much of an issue in most cases. - * - * We keep this legacy implementation around despite now having the high quality - * fills, as this is necessary for keeping everything working nicely for files - * created using old versions of Blender which may have depended on the artifacts - * the old fills created. - */ - bGPDspoint *pt; - - glBegin(GL_POLYGON); - for (i = 0, pt = gps->points; i < gps->totpoints; i++, pt++) { - if (gps->flag & GP_STROKE_3DSPACE) { - mul_v3_m4v3(fpt, diff_mat, &pt->x); - glVertex3fv(fpt); - } - else { - float co[2]; - mul_v3_m4v3(fpt, diff_mat, &pt->x); - gp_calc_2d_stroke_fxy(fpt, gps->flag, offsx, offsy, winx, winy, co); - glVertex2fv(co); - } - } - glEnd(); + immEnd(); + immUnbindProgram(); } } @@ -545,153 +565,162 @@ static void gp_draw_stroke_fill( /* draw a given stroke - just a single dot (only one point) */ static void gp_draw_stroke_point( - bGPDspoint *points, short thickness, short dflag, short sflag, - int offsx, int offsy, int winx, int winy, float diff_mat[4][4], float ink[4]) + const bGPDspoint *points, short thickness, short UNUSED(dflag), short sflag, + int offsx, int offsy, int winx, int winy, const float diff_mat[4][4], const float ink[4]) { - float fpt[3]; - bGPDspoint *pt = &points[0]; - - /* color of point */ - gp_set_point_color(pt, ink); + const bGPDspoint *pt = points; - /* set point thickness (since there's only one of these) */ - glPointSize((float)(thickness + 2) * points->pressure); - /* get final position using parent matrix */ + float fpt[3]; mul_v3_m4v3(fpt, diff_mat, &pt->x); - /* draw point */ + Gwn_VertFormat *format = immVertexFormat(); + unsigned int pos = GWN_vertformat_attr_add(format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + if (sflag & GP_STROKE_3DSPACE) { - glBegin(GL_POINTS); - glVertex3fv(fpt); - glEnd(); + immBindBuiltinProgram(GPU_SHADER_3D_POINT_UNIFORM_SIZE_UNIFORM_COLOR_AA); } else { - float co[2]; - - /* get coordinates of point */ + immBindBuiltinProgram(GPU_SHADER_2D_POINT_UNIFORM_SIZE_UNIFORM_COLOR_AA); + + /* get 2D coordinates of point */ + float co[3] = { 0.0f }; gp_calc_2d_stroke_fxy(fpt, sflag, offsx, offsy, winx, winy, co); - - /* if thickness is less than GP_DRAWTHICKNESS_SPECIAL, simple dot looks ok - * - also mandatory in if Image Editor 'image-based' dot - */ - if ((thickness < GP_DRAWTHICKNESS_SPECIAL) || - ((dflag & GP_DRAWDATA_IEDITHACK) && (sflag & GP_STROKE_2DSPACE))) - { - glBegin(GL_POINTS); - glVertex2fv(co); - glEnd(); - } - else { - /* draw filled circle as is done in circf (but without the matrix push/pops which screwed things up) */ - GLUquadricObj *qobj = gluNewQuadric(); - - gluQuadricDrawStyle(qobj, GLU_FILL); - - /* need to translate drawing position, but must reset after too! */ - glTranslate2fv(co); - gluDisk(qobj, 0.0, thickness, 32, 1); - glTranslatef(-co[0], -co[1], 0.0); - - gluDeleteQuadric(qobj); - } + copy_v3_v3(fpt, co); } + + gp_set_point_uniform_color(pt, ink); + /* set point thickness (since there's only one of these) */ + immUniform1f("size", (float)(thickness + 2) * pt->pressure); + + immBegin(GWN_PRIM_POINTS, 1); + immVertex3fv(pos, fpt); + immEnd(); + + immUnbindProgram(); } /* draw a given stroke in 3d (i.e. in 3d-space), using simple ogl lines */ -static void gp_draw_stroke_3d(bGPDspoint *points, int totpoints, short thickness, bool debug, - short UNUSED(sflag), float diff_mat[4][4], float ink[4], bool cyclic) +static void gp_draw_stroke_3d(const bGPDspoint *points, int totpoints, short thickness, bool UNUSED(debug), + short UNUSED(sflag), const float diff_mat[4][4], const float ink[4], bool cyclic) { - bGPDspoint *pt, *pt2; float curpressure = points[0].pressure; - int i; float fpt[3]; float cyclic_fpt[3]; + int draw_points = 0; + + /* if cyclic needs one vertex more */ + int cyclic_add = 0; + if (cyclic) { + ++cyclic_add; + } + + + Gwn_VertFormat *format = immVertexFormat(); + unsigned int pos = GWN_vertformat_attr_add(format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + unsigned int color = GWN_vertformat_attr_add(format, "color", GWN_COMP_U8, 4, GWN_FETCH_INT_TO_FLOAT_UNIT); + + immBindBuiltinProgram(GPU_SHADER_3D_SMOOTH_COLOR); + + /* TODO: implement this with a geometry shader to draw one continuous tapered stroke */ /* draw stroke curve */ glLineWidth(max_ff(curpressure * thickness, 1.0f)); - glBegin(GL_LINE_STRIP); - for (i = 0, pt = points; i < totpoints && pt; i++, pt++) { - gp_set_point_color(pt, ink); + immBeginAtMost(GWN_PRIM_LINE_STRIP, totpoints + cyclic_add); + const bGPDspoint *pt = points; + for (int i = 0; i < totpoints; i++, pt++) { + gp_set_point_varying_color(pt, ink, color); /* if there was a significant pressure change, stop the curve, change the thickness of the stroke, * and continue drawing again (since line-width cannot change in middle of GL_LINE_STRIP) * Note: we want more visible levels of pressures when thickness is bigger. */ if (fabsf(pt->pressure - curpressure) > 0.2f / (float)thickness) { - glEnd(); + /* if the pressure changes before get at least 2 vertices, need to repeat last point to avoid assert in immEnd() */ + if (draw_points < 2) { + const bGPDspoint *pt2 = pt - 1; + mul_v3_m4v3(fpt, diff_mat, &pt2->x); + immVertex3fv(pos, fpt); + } + immEnd(); + draw_points = 0; + curpressure = pt->pressure; glLineWidth(max_ff(curpressure * thickness, 1.0f)); - glBegin(GL_LINE_STRIP); - + immBeginAtMost(GWN_PRIM_LINE_STRIP, totpoints - i + 1 + cyclic_add); + /* need to roll-back one point to ensure that there are no gaps in the stroke */ if (i != 0) { - pt2 = pt - 1; + const bGPDspoint *pt2 = pt - 1; mul_v3_m4v3(fpt, diff_mat, &pt2->x); - glVertex3fv(fpt); + gp_set_point_varying_color(pt2, ink, color); + immVertex3fv(pos, fpt); + ++draw_points; } - - /* now the point we want... */ - mul_v3_m4v3(fpt, diff_mat, &pt->x); - glVertex3fv(fpt); - } - else { - mul_v3_m4v3(fpt, diff_mat, &pt->x); - glVertex3fv(fpt); } - /* saves first point to use in cyclic */ - if (i == 0) { + + /* now the point we want */ + mul_v3_m4v3(fpt, diff_mat, &pt->x); + immVertex3fv(pos, fpt); + ++draw_points; + + if (cyclic && i == 0) { + /* save first point to use in cyclic */ copy_v3_v3(cyclic_fpt, fpt); } } - /* if cyclic draw line to first point */ + if (cyclic) { - glVertex3fv(cyclic_fpt); + /* draw line to first point to complete the cycle */ + immVertex3fv(pos, cyclic_fpt); + ++draw_points; } - glEnd(); - - /* draw debug points of curve on top? */ - /* XXX: for now, we represent "selected" strokes in the same way as debug, which isn't used anymore */ - if (debug) { - glPointSize((float)(thickness + 2)); - - glBegin(GL_POINTS); - for (i = 0, pt = points; i < totpoints && pt; i++, pt++) { - mul_v3_m4v3(fpt, diff_mat, &pt->x); - glVertex3fv(fpt); - } - glEnd(); + /* if less of two points, need to repeat last point to avoid assert in immEnd() */ + if (draw_points < 2) { + const bGPDspoint *pt2 = pt - 1; + mul_v3_m4v3(fpt, diff_mat, &pt2->x); + gp_set_point_varying_color(pt2, ink, color); + immVertex3fv(pos, fpt); } + + immEnd(); + immUnbindProgram(); } /* ----- Fancy 2D-Stroke Drawing ------ */ /* draw a given stroke in 2d */ -static void gp_draw_stroke_2d(bGPDspoint *points, int totpoints, short thickness_s, short dflag, short sflag, - bool debug, int offsx, int offsy, int winx, int winy, float diff_mat[4][4], float ink[4]) +static void gp_draw_stroke_2d(const bGPDspoint *points, int totpoints, short thickness_s, short dflag, short sflag, + bool UNUSED(debug), int offsx, int offsy, int winx, int winy, const float diff_mat[4][4], const float ink[4]) { /* otherwise thickness is twice that of the 3D view */ float thickness = (float)thickness_s * 0.5f; - + /* strokes in Image Editor need a scale factor, since units there are not pixels! */ float scalefac = 1.0f; if ((dflag & GP_DRAWDATA_IEDITHACK) && (dflag & GP_DRAWDATA_ONLYV2D)) { scalefac = 0.001f; } - - /* tessellation code - draw stroke as series of connected quads with connection + + /* TODO: fancy++ with the magic of shaders */ + + /* tessellation code - draw stroke as series of connected quads (triangle strips in fact) with connection * edges rotated to minimize shrinking artifacts, and rounded endcaps */ { - bGPDspoint *pt1, *pt2; + const bGPDspoint *pt1, *pt2; float s0[2], s1[2]; /* segment 'center' points */ float pm[2]; /* normal from previous segment. */ int i; float fpt[3]; - - glShadeModel(GL_FLAT); - glBegin(GL_QUADS); + + Gwn_VertFormat *format = immVertexFormat(); + unsigned int pos = GWN_vertformat_attr_add(format, "pos", GWN_COMP_F32, 2, GWN_FETCH_FLOAT); + unsigned int color = GWN_vertformat_attr_add(format, "color", GWN_COMP_U8, 4, GWN_FETCH_INT_TO_FLOAT_UNIT); + + immBindBuiltinProgram(GPU_SHADER_2D_FLAT_COLOR); + immBegin(GWN_PRIM_TRI_STRIP, totpoints * 2 + 4); /* get x and y coordinates from first point */ mul_v3_m4v3(fpt, diff_mat, &points->x); @@ -706,19 +735,19 @@ static void gp_draw_stroke_2d(bGPDspoint *points, int totpoints, short thickness /* get x and y coordinates from point2 (point1 has already been computed in previous iteration). */ mul_v3_m4v3(fpt, diff_mat, &pt2->x); gp_calc_2d_stroke_fxy(fpt, sflag, offsx, offsy, winx, winy, s1); - + /* calculate gradient and normal - 'angle'=(ny/nx) */ m1[1] = s1[1] - s0[1]; m1[0] = s1[0] - s0[0]; normalize_v2(m1); m2[1] = -m1[0]; m2[0] = m1[1]; - + /* always use pressure from first point here */ pthick = (pt1->pressure * thickness * scalefac); - + /* color of point */ - gp_set_point_color(pt1, ink); + gp_set_point_varying_color(pt1, ink, color); /* if the first segment, start of segment is segment's normal */ if (i == 0) { @@ -729,40 +758,39 @@ static void gp_draw_stroke_2d(bGPDspoint *points, int totpoints, short thickness mt[1] = m2[1] * pthick * 0.5f; sc[0] = s0[0] - (m1[0] * pthick * 0.75f); sc[1] = s0[1] - (m1[1] * pthick * 0.75f); - + t0[0] = sc[0] - mt[0]; t0[1] = sc[1] - mt[1]; t1[0] = sc[0] + mt[0]; t1[1] = sc[1] + mt[1]; - - glVertex2fv(t0); - glVertex2fv(t1); - + + /* First two points of cap. */ + immVertex2fv(pos, t0); + immVertex2fv(pos, t1); + /* calculate points for start of segment */ mt[0] = m2[0] * pthick; mt[1] = m2[1] * pthick; - + t0[0] = s0[0] - mt[0]; t0[1] = s0[1] - mt[1]; t1[0] = s0[0] + mt[0]; t1[1] = s0[1] + mt[1]; - - /* draw this line twice (first to finish off start cap, then for stroke) */ - glVertex2fv(t1); - glVertex2fv(t0); - glVertex2fv(t0); - glVertex2fv(t1); + + /* Last two points of start cap (and first two points of first segment). */ + immVertex2fv(pos, t0); + immVertex2fv(pos, t1); } /* if not the first segment, use bisector of angle between segments */ else { float mb[2]; /* bisector normal */ float athick, dfac; /* actual thickness, difference between thicknesses */ - + /* calculate gradient of bisector (as average of normals) */ mb[0] = (pm[0] + m2[0]) / 2; mb[1] = (pm[1] + m2[1]) / 2; normalize_v2(mb); - + /* calculate gradient to apply * - as basis, use just pthick * bisector gradient * - if cross-section not as thick as it should be, add extra padding to fix it @@ -771,49 +799,44 @@ static void gp_draw_stroke_2d(bGPDspoint *points, int totpoints, short thickness mt[1] = mb[1] * pthick; athick = len_v2(mt); dfac = pthick - (athick * 2); - + if (((athick * 2.0f) < pthick) && (IS_EQF(athick, pthick) == 0)) { mt[0] += (mb[0] * dfac); mt[1] += (mb[1] * dfac); } - + /* calculate points for start of segment */ t0[0] = s0[0] - mt[0]; t0[1] = s0[1] - mt[1]; t1[0] = s0[0] + mt[0]; t1[1] = s0[1] + mt[1]; - - /* draw this line twice (once for end of current segment, and once for start of next) */ - glVertex2fv(t1); - glVertex2fv(t0); - glVertex2fv(t0); - glVertex2fv(t1); + + /* Last two points of previous segment, and first two points of current segment. */ + immVertex2fv(pos, t0); + immVertex2fv(pos, t1); } - + /* if last segment, also draw end of segment (defined as segment's normal) */ if (i == totpoints - 2) { /* for once, we use second point's pressure (otherwise it won't be drawn) */ pthick = (pt2->pressure * thickness * scalefac); - + /* color of point */ - gp_set_point_color(pt2, ink); + gp_set_point_varying_color(pt2, ink, color); /* calculate points for end of segment */ mt[0] = m2[0] * pthick; mt[1] = m2[1] * pthick; - + t0[0] = s1[0] - mt[0]; t0[1] = s1[1] - mt[1]; t1[0] = s1[0] + mt[0]; t1[1] = s1[1] + mt[1]; - - /* draw this line twice (once for end of stroke, and once for endcap)*/ - glVertex2fv(t1); - glVertex2fv(t0); - glVertex2fv(t0); - glVertex2fv(t1); - - + + /* Last two points of last segment (and first two points of end cap). */ + immVertex2fv(pos, t0); + immVertex2fv(pos, t1); + /* draw end cap as last step * - make points slightly closer to center (about halfway across) */ @@ -821,42 +844,25 @@ static void gp_draw_stroke_2d(bGPDspoint *points, int totpoints, short thickness mt[1] = m2[1] * pthick * 0.5f; sc[0] = s1[0] + (m1[0] * pthick * 0.75f); sc[1] = s1[1] + (m1[1] * pthick * 0.75f); - + t0[0] = sc[0] - mt[0]; t0[1] = sc[1] - mt[1]; t1[0] = sc[0] + mt[0]; t1[1] = sc[1] + mt[1]; - - glVertex2fv(t1); - glVertex2fv(t0); + + /* Last two points of end cap. */ + immVertex2fv(pos, t0); + immVertex2fv(pos, t1); } - + /* store computed point2 coordinates as point1 ones of next segment. */ copy_v2_v2(s0, s1); /* store stroke's 'natural' normal for next stroke to use */ copy_v2_v2(pm, m2); } - - glEnd(); - glShadeModel(GL_SMOOTH); - } - - /* draw debug points of curve on top? (original stroke points) */ - if (debug) { - bGPDspoint *pt; - int i; - float fpt[3]; - glPointSize((float)(thickness_s + 2)); - - glBegin(GL_POINTS); - for (i = 0, pt = points; i < totpoints && pt; i++, pt++) { - float co[2]; - mul_v3_m4v3(fpt, diff_mat, &pt->x); - gp_calc_2d_stroke_fxy(fpt, sflag, offsx, offsy, winx, winy, co); - glVertex2fv(co); - } - glEnd(); + immEnd(); + immUnbindProgram(); } } @@ -871,41 +877,41 @@ static bool gp_can_draw_stroke(const bGPDstroke *gps, const int dflag) return false; if (!(dflag & GP_DRAWDATA_ONLY3D) && (gps->flag & GP_STROKE_3DSPACE)) return false; - + /* 2) Screen Space 2D Strokes */ if ((dflag & GP_DRAWDATA_ONLYV2D) && !(gps->flag & GP_STROKE_2DSPACE)) return false; if (!(dflag & GP_DRAWDATA_ONLYV2D) && (gps->flag & GP_STROKE_2DSPACE)) return false; - + /* 3) Image Space (2D) */ if ((dflag & GP_DRAWDATA_ONLYI2D) && !(gps->flag & GP_STROKE_2DIMAGE)) return false; if (!(dflag & GP_DRAWDATA_ONLYI2D) && (gps->flag & GP_STROKE_2DIMAGE)) return false; - - + /* skip stroke if it doesn't have any valid data */ if ((gps->points == NULL) || (gps->totpoints < 1)) return false; - + /* stroke can be drawn */ return true; } /* draw a set of strokes */ static void gp_draw_strokes( - bGPdata *gpd, bGPDframe *gpf, int offsx, int offsy, int winx, int winy, int dflag, + bGPdata *gpd, const bGPDframe *gpf, int offsx, int offsy, int winx, int winy, int dflag, bool debug, short lthick, const float opacity, const float tintcolor[4], - const bool onion, const bool custonion, float diff_mat[4][4]) + const bool onion, const bool custonion, const float diff_mat[4][4]) { - bGPDstroke *gps; float tcolor[4]; float tfill[4]; short sthickness; float ink[4]; - for (gps = gpf->strokes.first; gps; gps = gps->next) { + GPU_enable_program_point_size(); + + for (bGPDstroke *gps = gpf->strokes.first; gps; gps = gps->next) { /* check if stroke can be drawn */ if (gp_can_draw_stroke(gps, dflag) == false) { continue; @@ -923,6 +929,10 @@ static void gp_draw_strokes( /* calculate thickness */ sthickness = gps->thickness + lthick; + if (sthickness <= 0) { + continue; + } + /* check which stroke-drawer to use */ if (dflag & GP_DRAWDATA_ONLY3D) { const int no_xray = (dflag & GP_DRAWDATA_NO_XRAY); @@ -936,10 +946,6 @@ static void gp_draw_strokes( /* first arg is normally rv3d->dist, but this isn't * available here and seems to work quite well without */ bglPolygonOffset(1.0f, 1.0f); -#if 0 - glEnable(GL_POLYGON_OFFSET_LINE); - glPolygonOffset(-1.0f, -1.0f); -#endif } /* 3D Fill */ @@ -949,19 +955,20 @@ static void gp_draw_strokes( interp_v3_v3v3(tfill, palcolor->fill, tintcolor, tintcolor[3]); tfill[3] = palcolor->fill[3] * opacity; if (tfill[3] > GPENCIL_ALPHA_OPACITY_THRESH) { + const float *color; if (!onion) { - glColor4fv(tfill); + color = tfill; } else { if (custonion) { - glColor4fv(tintcolor); + color = tintcolor; } else { ARRAY_SET_ITEMS(tfill, UNPACK3(palcolor->fill), tintcolor[3]); - glColor4fv(tfill); + color = tfill; } } - gp_draw_stroke_fill(gpd, gps, offsx, offsy, winx, winy, diff_mat); + gp_draw_stroke_fill(gpd, gps, offsx, offsy, winx, winy, diff_mat, color); } } @@ -983,7 +990,7 @@ static void gp_draw_strokes( } if (palcolor->flag & PC_COLOR_VOLUMETRIC) { /* volumetric stroke drawing */ - gp_draw_stroke_volumetric_3d(gps->points, gps->totpoints, sthickness, dflag, gps->flag, diff_mat, ink); + gp_draw_stroke_volumetric_3d(gps->points, gps->totpoints, sthickness, ink); } else { /* 3D Lines - OpenGL primitives-based */ @@ -1001,10 +1008,6 @@ static void gp_draw_strokes( glDisable(GL_DEPTH_TEST); bglPolygonOffset(0.0, 0.0); -#if 0 - glDisable(GL_POLYGON_OFFSET_LINE); - glPolygonOffset(0, 0); -#endif } } else { @@ -1014,20 +1017,21 @@ static void gp_draw_strokes( interp_v3_v3v3(tfill, palcolor->fill, tintcolor, tintcolor[3]); tfill[3] = palcolor->fill[3] * opacity; if (tfill[3] > GPENCIL_ALPHA_OPACITY_THRESH) { + const float *color; if (!onion) { - glColor4fv(tfill); + color = tfill; } else { if (custonion) { - glColor4fv(tintcolor); + color = tintcolor; } else { ARRAY_SET_ITEMS(tfill, palcolor->fill[0], palcolor->fill[1], palcolor->fill[2], tintcolor[3]); - glColor4fv(tfill); + color = tfill; } } - gp_draw_stroke_fill(gpd, gps, offsx, offsy, winx, winy, diff_mat); + gp_draw_stroke_fill(gpd, gps, offsx, offsy, winx, winy, diff_mat, color); } } @@ -1065,15 +1069,15 @@ static void gp_draw_strokes( } } } + + GPU_disable_program_point_size(); } /* Draw selected verts for strokes being edited */ static void gp_draw_strokes_edit( - bGPdata *gpd, bGPDframe *gpf, int offsx, int offsy, int winx, int winy, short dflag, - short lflag, float diff_mat[4][4], float alpha) + bGPdata *gpd, const bGPDframe *gpf, int offsx, int offsy, int winx, int winy, short dflag, + short lflag, const float diff_mat[4][4], float alpha) { - bGPDstroke *gps; - /* if alpha 0 do not draw */ if (alpha == 0.0f) return; @@ -1087,36 +1091,28 @@ static void gp_draw_strokes_edit( glGetIntegerv(GL_DEPTH_WRITEMASK, &mask_orig); glDepthMask(0); glEnable(GL_DEPTH_TEST); - + /* first arg is normally rv3d->dist, but this isn't * available here and seems to work quite well without */ bglPolygonOffset(1.0f, 1.0f); -#if 0 - glEnable(GL_POLYGON_OFFSET_LINE); - glPolygonOffset(-1.0f, -1.0f); -#endif } } - - - /* draw stroke verts */ - for (gps = gpf->strokes.first; gps; gps = gps->next) { - bGPDspoint *pt; - float vsize, bsize; - int i; - float fpt[3]; + GPU_enable_program_point_size(); + + /* draw stroke verts */ + for (bGPDstroke *gps = gpf->strokes.first; gps; gps = gps->next) { /* check if stroke can be drawn */ if (gp_can_draw_stroke(gps, dflag) == false) continue; - + /* Optimisation: only draw points for selected strokes * We assume that selected points can only occur in * strokes that are selected too. */ if ((gps->flag & GP_STROKE_SELECT) == 0) continue; - + /* verify palette color lock */ { bGPDpalettecolor *palcolor = ED_gpencil_stroke_getcolor(gpd, gps); @@ -1135,7 +1131,8 @@ static void gp_draw_strokes_edit( * they stand out more. * - We use the theme setting for size of the unselected verts */ - bsize = UI_GetThemeValuef(TH_GP_VERTEX_SIZE); + float bsize = UI_GetThemeValuef(TH_GP_VERTEX_SIZE); + float vsize; if ((int)bsize > 8) { vsize = 10.0f; bsize = 8.0f; @@ -1143,89 +1140,83 @@ static void gp_draw_strokes_edit( else { vsize = bsize + 2; } - - /* First Pass: Draw all the verts (i.e. these become the unselected state) */ + /* for now, we assume that the base color of the points is not too close to the real color */ /* set color using palette */ bGPDpalettecolor *palcolor = ED_gpencil_stroke_getcolor(gpd, gps); - glColor3fv(palcolor->color); - glPointSize(bsize); - - glBegin(GL_POINTS); - for (i = 0, pt = gps->points; i < gps->totpoints && pt; i++, pt++) { + float selectColor[4]; + UI_GetThemeColor3fv(TH_GP_VERTEX_SELECT, selectColor); + selectColor[3] = alpha; + + Gwn_VertFormat *format = immVertexFormat(); + unsigned int pos; /* specified later */ + unsigned int size = GWN_vertformat_attr_add(format, "size", GWN_COMP_F32, 1, GWN_FETCH_FLOAT); + unsigned int color = GWN_vertformat_attr_add(format, "color", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + + if (gps->flag & GP_STROKE_3DSPACE) { + pos = GWN_vertformat_attr_add(format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + immBindBuiltinProgram(GPU_SHADER_3D_POINT_VARYING_SIZE_VARYING_COLOR); + } + else { + pos = GWN_vertformat_attr_add(format, "pos", GWN_COMP_F32, 2, GWN_FETCH_FLOAT); + immBindBuiltinProgram(GPU_SHADER_2D_POINT_VARYING_SIZE_VARYING_COLOR); + } + + immBegin(GWN_PRIM_POINTS, gps->totpoints); + + /* Draw start and end point differently if enabled stroke direction hint */ + bool show_direction_hint = (gpd->flag & GP_DATA_SHOW_DIRECTION) && (gps->totpoints > 1); + + /* Draw all the stroke points (selected or not) */ + bGPDspoint *pt = gps->points; + float fpt[3]; + for (int i = 0; i < gps->totpoints; i++, pt++) { + /* size and color first */ + if (show_direction_hint && i == 0) { + /* start point in green bigger */ + immAttrib3f(color, 0.0f, 1.0f, 0.0f); + immAttrib1f(size, vsize + 4); + } + else if (show_direction_hint && (i == gps->totpoints - 1)) { + /* end point in red smaller */ + immAttrib3f(color, 1.0f, 0.0f, 0.0f); + immAttrib1f(size, vsize + 1); + } + else if (pt->flag & GP_SPOINT_SELECT) { + immAttrib3fv(color, selectColor); + immAttrib1f(size, vsize); + } + else { + immAttrib3fv(color, palcolor->color); + immAttrib1f(size, bsize); + } + + /* then position */ if (gps->flag & GP_STROKE_3DSPACE) { mul_v3_m4v3(fpt, diff_mat, &pt->x); - glVertex3fv(fpt); + immVertex3fv(pos, fpt); } else { float co[2]; mul_v3_m4v3(fpt, diff_mat, &pt->x); gp_calc_2d_stroke_fxy(fpt, gps->flag, offsx, offsy, winx, winy, co); - glVertex2fv(co); + immVertex2fv(pos, co); } } - glEnd(); - - - /* Second Pass: Draw only verts which are selected */ - float curColor[4]; - UI_GetThemeColor3fv(TH_GP_VERTEX_SELECT, curColor); - glColor4f(curColor[0], curColor[1], curColor[2], alpha); - glPointSize(vsize); - - glBegin(GL_POINTS); - for (i = 0, pt = gps->points; i < gps->totpoints && pt; i++, pt++) { - if (pt->flag & GP_SPOINT_SELECT) { - if (gps->flag & GP_STROKE_3DSPACE) { - mul_v3_m4v3(fpt, diff_mat, &pt->x); - glVertex3fv(fpt); - } - else { - float co[2]; - - mul_v3_m4v3(fpt, diff_mat, &pt->x); - gp_calc_2d_stroke_fxy(fpt, gps->flag, offsx, offsy, winx, winy, co); - glVertex2fv(co); - } - } - } - glEnd(); - - /* Draw start and end point if enabled stroke direction hint */ - if ((gpd->flag & GP_DATA_SHOW_DIRECTION) && (gps->totpoints > 1)) { - bGPDspoint *p; - - glPointSize(vsize + 4); - glBegin(GL_POINTS); - - /* start point in green bigger */ - glColor3f(0.0f, 1.0f, 0.0f); - p = &gps->points[0]; - mul_v3_m4v3(fpt, diff_mat, &p->x); - glVertex3fv(fpt); - glEnd(); - - /* end point in red smaller */ - glPointSize(vsize + 1); - glBegin(GL_POINTS); - - glColor3f(1.0f, 0.0f, 0.0f); - p = &gps->points[gps->totpoints - 1]; - mul_v3_m4v3(fpt, diff_mat, &p->x); - glVertex3fv(fpt); - glEnd(); - } + immEnd(); + immUnbindProgram(); } - - + + GPU_disable_program_point_size(); + /* clear depth mask */ if (dflag & GP_DRAWDATA_ONLY3D) { if (no_xray) { glDepthMask(mask_orig); glDisable(GL_DEPTH_TEST); - + bglPolygonOffset(0.0, 0.0); #if 0 glDisable(GL_POLYGON_OFFSET_LINE); @@ -1239,8 +1230,8 @@ static void gp_draw_strokes_edit( /* draw onion-skinning for a layer */ static void gp_draw_onionskins( - bGPdata *gpd, bGPDlayer *gpl, bGPDframe *gpf, int offsx, int offsy, int winx, int winy, - int UNUSED(cfra), int dflag, bool debug, float diff_mat[4][4]) + bGPdata *gpd, const bGPDlayer *gpl, const bGPDframe *gpf, int offsx, int offsy, int winx, int winy, + int UNUSED(cfra), int dflag, bool debug, const float diff_mat[4][4]) { const float default_color[3] = {UNPACK3(U.gpencil_new_layer_col)}; const float alpha = 1.0f; @@ -1253,17 +1244,14 @@ static void gp_draw_onionskins( else { copy_v3_v3(color, default_color); } - + if (gpl->gstep > 0) { - bGPDframe *gf; - float fac; - /* draw previous frames first */ - for (gf = gpf->prev; gf; gf = gf->prev) { + for (bGPDframe *gf = gpf->prev; gf; gf = gf->prev) { /* check if frame is drawable */ if ((gpf->framenum - gf->framenum) <= gpl->gstep) { /* alpha decreases with distance from curframe index */ - fac = 1.0f - ((float)(gpf->framenum - gf->framenum) / (float)(gpl->gstep + 1)); + float fac = 1.0f - ((float)(gpf->framenum - gf->framenum) / (float)(gpl->gstep + 1)); color[3] = alpha * fac * 0.66f; gp_draw_strokes(gpd, gf, offsx, offsy, winx, winy, dflag, debug, gpl->thickness, 1.0f, color, true, gpl->flag & GP_LAYER_GHOST_PREVCOL, diff_mat); @@ -1283,8 +1271,7 @@ static void gp_draw_onionskins( else { /* don't draw - disabled */ } - - + /* 2) Now draw next frames */ if (gpl->flag & GP_LAYER_GHOST_NEXTCOL) { copy_v3_v3(color, gpl->gcolor_next); @@ -1292,17 +1279,14 @@ static void gp_draw_onionskins( else { copy_v3_v3(color, default_color); } - + if (gpl->gstep_next > 0) { - bGPDframe *gf; - float fac; - /* now draw next frames */ - for (gf = gpf->next; gf; gf = gf->next) { + for (bGPDframe *gf = gpf->next; gf; gf = gf->next) { /* check if frame is drawable */ if ((gf->framenum - gpf->framenum) <= gpl->gstep_next) { /* alpha decreases with distance from curframe index */ - fac = 1.0f - ((float)(gf->framenum - gpf->framenum) / (float)(gpl->gstep_next + 1)); + float fac = 1.0f - ((float)(gf->framenum - gpf->framenum) / (float)(gpl->gstep_next + 1)); color[3] = alpha * fac * 0.66f; gp_draw_strokes(gpd, gf, offsx, offsy, winx, winy, dflag, debug, gpl->thickness, 1.0f, color, true, gpl->flag & GP_LAYER_GHOST_NEXTCOL, diff_mat); @@ -1322,7 +1306,6 @@ static void gp_draw_onionskins( else { /* don't draw - disabled */ } - } /* draw interpolate strokes (used only while operator is running) */ @@ -1360,29 +1343,27 @@ void ED_gp_draw_interpolation(tGPDinterpolate *tgpi, const int type) /* loop over gpencil data layers, drawing them */ static void gp_draw_data_layers( - bGPDbrush *brush, float alpha, bGPdata *gpd, + const bGPDbrush *brush, float alpha, bGPdata *gpd, int offsx, int offsy, int winx, int winy, int cfra, int dflag) { - bGPDlayer *gpl; float diff_mat[4][4]; - for (gpl = gpd->layers.first; gpl; gpl = gpl->next) { - bGPDframe *gpf; + for (bGPDlayer *gpl = gpd->layers.first; gpl; gpl = gpl->next) { /* calculate parent position */ ED_gpencil_parent_location(gpl, diff_mat); - bool debug = (gpl->flag & GP_LAYER_DRAWDEBUG) ? true : false; + bool debug = (gpl->flag & GP_LAYER_DRAWDEBUG); short lthick = brush->thickness + gpl->thickness; - + /* don't draw layer if hidden */ if (gpl->flag & GP_LAYER_HIDE) continue; - + /* get frame to draw */ - gpf = BKE_gpencil_layer_getframe(gpl, cfra, 0); + bGPDframe *gpf = BKE_gpencil_layer_getframe(gpl, cfra, 0); if (gpf == NULL) continue; - + /* set basic stroke thickness */ glLineWidth(lthick); @@ -1394,10 +1375,10 @@ static void gp_draw_data_layers( if (condition) dflag |= (draw_flag_value); \ else dflag &= ~(draw_flag_value); \ } (void)0 - + /* xray... */ GP_DRAWFLAG_APPLY((gpl->flag & GP_LAYER_NO_XRAY), GP_DRAWDATA_NO_XRAY); - + /* volumetric strokes... */ GP_DRAWFLAG_APPLY((gpl->flag & GP_LAYER_VOLUMETRIC), GP_DRAWDATA_VOLUMETRIC); @@ -1421,11 +1402,11 @@ static void gp_draw_data_layers( */ gp_draw_onionskins(gpd, gpl, gpf, offsx, offsy, winx, winy, cfra, dflag, debug, diff_mat); } - + /* draw the strokes already in active frame */ gp_draw_strokes(gpd, gpf, offsx, offsy, winx, winy, dflag, debug, gpl->thickness, gpl->opacity, gpl->tintcolor, false, false, diff_mat); - + /* Draw verts of selected strokes * - when doing OpenGL renders, we don't want to be showing these, as that ends up flickering * - locked layers can't be edited, so there's no point showing these verts @@ -1440,16 +1421,13 @@ static void gp_draw_data_layers( { gp_draw_strokes_edit(gpd, gpf, offsx, offsy, winx, winy, dflag, gpl->flag, diff_mat, alpha); } - + /* Check if may need to draw the active stroke cache, only if this layer is the active layer * that is being edited. (Stroke buffer is currently stored in gp-data) */ if (ED_gpencil_session_active() && (gpl->flag & GP_LAYER_ACTIVE) && (gpf->flag & GP_FRAME_PAINT)) { - /* Set color for drawing buffer stroke - since this may not be set yet */ - // glColor4fv(gpl->color); - /* Buffer stroke needs to be drawn with a different linestyle * to help differentiate them from normal strokes. * @@ -1458,89 +1436,84 @@ static void gp_draw_data_layers( */ if (gpd->sflag & PC_COLOR_VOLUMETRIC) { gp_draw_stroke_volumetric_buffer(gpd->sbuffer, gpd->sbuffer_size, lthick, - dflag, gpd->sbuffer_sflag, gpd->scolor); + dflag, gpd->scolor); } else { - gp_draw_stroke_buffer(gpd->sbuffer, gpd->sbuffer_size, lthick, dflag, gpd->sbuffer_sflag, gpd->scolor); + gp_draw_stroke_buffer(gpd->sbuffer, gpd->sbuffer_size, lthick, dflag, gpd->sbuffer_sflag, gpd->scolor, gpd->sfill); } } } } /* draw a short status message in the top-right corner */ -static void gp_draw_status_text(bGPdata *gpd, ARegion *ar) +static void gp_draw_status_text(const bGPdata *gpd, ARegion *ar) { rcti rect; - + /* Cannot draw any status text when drawing OpenGL Renders */ if (G.f & G_RENDER_OGL) return; - + /* Get bounds of region - Necessary to avoid problems with region overlap */ ED_region_visible_rect(ar, &rect); - + /* for now, this should only be used to indicate when we are in stroke editmode */ if (gpd->flag & GP_DATA_STROKE_EDITMODE) { const char *printable = IFACE_("GPencil Stroke Editing"); float printable_size[2]; - int xco, yco; - - BLF_width_and_height_default(printable, BLF_DRAW_STR_DUMMY_MAX, &printable_size[0], &printable_size[1]); - - xco = (rect.xmax - U.widget_unit) - (int)printable_size[0]; - yco = (rect.ymax - U.widget_unit); + + int font_id = BLF_default(); + + BLF_width_and_height(font_id, printable, BLF_DRAW_STR_DUMMY_MAX, &printable_size[0], &printable_size[1]); + int xco = (rect.xmax - U.widget_unit) - (int)printable_size[0]; + int yco = (rect.ymax - U.widget_unit); + /* text label */ - UI_ThemeColor(TH_TEXT_HI); + UI_FontThemeColor(font_id, TH_TEXT_HI); #ifdef WITH_INTERNATIONAL BLF_draw_default(xco, yco, 0.0f, printable, BLF_DRAW_STR_DUMMY_MAX); #else BLF_draw_default_ascii(xco, yco, 0.0f, printable, BLF_DRAW_STR_DUMMY_MAX); #endif - + /* grease pencil icon... */ // XXX: is this too intrusive? glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); glEnable(GL_BLEND); - + xco -= U.widget_unit; yco -= (int)printable_size[1] / 2; UI_icon_draw(xco, yco, ICON_GREASEPENCIL); - + glDisable(GL_BLEND); } } /* draw grease-pencil datablock */ static void gp_draw_data( - bGPDbrush *brush, float alpha, bGPdata *gpd, + const bGPDbrush *brush, float alpha, bGPdata *gpd, int offsx, int offsy, int winx, int winy, int cfra, int dflag) { - /* reset line drawing style (in case previous user didn't reset) */ - setlinestyle(0); - /* turn on smooth lines (i.e. anti-aliasing) */ glEnable(GL_LINE_SMOOTH); - + /* XXX: turn on some way of ensuring that the polygon edges get smoothed * GL_POLYGON_SMOOTH is nasty and shouldn't be used, as it ends up * creating internal white rays due to the ways it accumulates stuff */ - + /* turn on alpha-blending */ glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA); glEnable(GL_BLEND); - + /* draw! */ gp_draw_data_layers(brush, alpha, gpd, offsx, offsy, winx, winy, cfra, dflag); - + /* turn off alpha blending, then smooth lines */ glDisable(GL_BLEND); // alpha blending glDisable(GL_LINE_SMOOTH); // smooth lines - - /* restore initial gl conditions */ - glColor4f(0, 0, 0, 1); } /* if we have strokes for scenes (3d view)/clips (movie clip editor) @@ -1575,7 +1548,7 @@ static void gp_draw_data_all(Scene *scene, bGPdata *gpd, int offsx, int offsy, i } } } - + /* scene/clip data has already been drawn, only object/track data is drawn here * if gpd_source == gpd, we don't have any object/track data and we can skip */ if (gpd_source == NULL || (gpd_source && gpd_source != gpd)) { @@ -1601,28 +1574,27 @@ void ED_gpencil_draw_2dimage(const bContext *C) ScrArea *sa = CTX_wm_area(C); ARegion *ar = CTX_wm_region(C); Scene *scene = CTX_data_scene(C); - bGPdata *gpd; + int offsx, offsy, sizex, sizey; int dflag = GP_DRAWDATA_NOSTATUS; - - gpd = ED_gpencil_data_get_active(C); // XXX + + bGPdata *gpd = ED_gpencil_data_get_active(C); // XXX if (gpd == NULL) return; - + /* calculate rect */ switch (sa->spacetype) { case SPACE_IMAGE: /* image */ case SPACE_CLIP: /* clip */ { - /* just draw using standard scaling (settings here are currently ignored anyways) */ /* FIXME: the opengl poly-strokes don't draw at right thickness when done this way, so disabled */ offsx = 0; offsy = 0; sizex = ar->winx; sizey = ar->winy; - + wmOrtho2(ar->v2d.cur.xmin, ar->v2d.cur.xmax, ar->v2d.cur.ymin, ar->v2d.cur.ymax); - + dflag |= GP_DRAWDATA_ONLYV2D | GP_DRAWDATA_IEDITHACK; break; } @@ -1633,7 +1605,7 @@ void ED_gpencil_draw_2dimage(const bContext *C) offsy = 0; sizex = ar->winx; sizey = ar->winy; - + /* NOTE: I2D was used in 2.4x, but the old settings for that have been deprecated * and everything moved to standard View2d */ @@ -1645,77 +1617,80 @@ void ED_gpencil_draw_2dimage(const bContext *C) offsy = 0; sizex = ar->winx; sizey = ar->winy; - + dflag |= GP_DRAWDATA_ONLYI2D; break; } - + if (ED_screen_animation_playing(wm)) { /* don't show onionskins during animation playback/scrub (i.e. it obscures the poses) * OpenGL Renders (i.e. final output), or depth buffer (i.e. not real strokes) */ dflag |= GP_DRAWDATA_NO_ONIONS; } - - + /* draw it! */ gp_draw_data_all(scene, gpd, offsx, offsy, sizex, sizey, CFRA, dflag, sa->spacetype); } /* draw grease-pencil sketches to specified 2d-view assuming that matrices are already set correctly - * Note: this gets called twice - first time with onlyv2d=1 to draw 'canvas' strokes, - * second time with onlyv2d=0 for screen-aligned strokes */ + * Note: this gets called twice - first time with onlyv2d=true to draw 'canvas' strokes, + * second time with onlyv2d=false for screen-aligned strokes */ void ED_gpencil_draw_view2d(const bContext *C, bool onlyv2d) { wmWindowManager *wm = CTX_wm_manager(C); ScrArea *sa = CTX_wm_area(C); ARegion *ar = CTX_wm_region(C); Scene *scene = CTX_data_scene(C); - bGPdata *gpd; int dflag = 0; /* check that we have grease-pencil stuff to draw */ if (sa == NULL) return; - gpd = ED_gpencil_data_get_active(C); // XXX + bGPdata *gpd = ED_gpencil_data_get_active(C); // XXX if (gpd == NULL) return; - + /* special hack for Image Editor */ /* FIXME: the opengl poly-strokes don't draw at right thickness when done this way, so disabled */ if (ELEM(sa->spacetype, SPACE_IMAGE, SPACE_CLIP)) dflag |= GP_DRAWDATA_IEDITHACK; - + /* draw it! */ if (onlyv2d) dflag |= (GP_DRAWDATA_ONLYV2D | GP_DRAWDATA_NOSTATUS); if (ED_screen_animation_playing(wm)) dflag |= GP_DRAWDATA_NO_ONIONS; - + gp_draw_data_all(scene, gpd, 0, 0, ar->winx, ar->winy, CFRA, dflag, sa->spacetype); - + /* draw status text (if in screen/pixel-space) */ - if (onlyv2d == false) { + if (!onlyv2d) { gp_draw_status_text(gpd, ar); } } /* draw grease-pencil sketches to specified 3d-view assuming that matrices are already set correctly - * Note: this gets called twice - first time with only3d=1 to draw 3d-strokes, - * second time with only3d=0 for screen-aligned strokes */ -void ED_gpencil_draw_view3d(wmWindowManager *wm, Scene *scene, View3D *v3d, ARegion *ar, bool only3d) + * Note: this gets called twice - first time with only3d=true to draw 3d-strokes, + * second time with only3d=false for screen-aligned strokes */ +void ED_gpencil_draw_view3d(wmWindowManager *wm, + Scene *scene, + ViewLayer *view_layer, + const struct Depsgraph *depsgraph, + View3D *v3d, + ARegion *ar, + bool only3d) { - bGPdata *gpd; int dflag = 0; RegionView3D *rv3d = ar->regiondata; int offsx, offsy, winx, winy; - + /* check that we have grease-pencil stuff to draw */ - gpd = ED_gpencil_data_get_active_v3d(scene, v3d); + bGPdata *gpd = ED_gpencil_data_get_active_v3d(scene, view_layer); if (gpd == NULL) return; - + /* when rendering to the offscreen buffer we don't want to * deal with the camera border, otherwise map the coords to the camera border. */ if ((rv3d->persp == RV3D_CAMOB) && !(G.f & G_RENDER_OGL)) { rctf rectf; - ED_view3d_calc_camera_border(scene, ar, v3d, rv3d, &rectf, true); /* no shift */ - + ED_view3d_calc_camera_border(scene, depsgraph, ar, v3d, rv3d, &rectf, true); /* no shift */ + offsx = round_fl_to_int(rectf.xmin); offsy = round_fl_to_int(rectf.ymin); winx = round_fl_to_int(rectf.xmax - rectf.xmin); @@ -1727,7 +1702,7 @@ void ED_gpencil_draw_view3d(wmWindowManager *wm, Scene *scene, View3D *v3d, AReg winx = ar->winx; winy = ar->winy; } - + /* set flags */ if (only3d) { /* 3D strokes/3D space: @@ -1736,28 +1711,27 @@ void ED_gpencil_draw_view3d(wmWindowManager *wm, Scene *scene, View3D *v3d, AReg */ dflag |= (GP_DRAWDATA_ONLY3D | GP_DRAWDATA_NOSTATUS); } - + if (v3d->flag2 & V3D_RENDER_OVERRIDE) { /* don't draw status text when "only render" flag is set */ dflag |= GP_DRAWDATA_NOSTATUS; } - + if ((wm == NULL) || ED_screen_animation_playing(wm)) { /* don't show onionskins during animation playback/scrub (i.e. it obscures the poses) * OpenGL Renders (i.e. final output), or depth buffer (i.e. not real strokes) */ dflag |= GP_DRAWDATA_NO_ONIONS; } - + /* draw it! */ - gp_draw_data_all(scene, gpd, offsx, offsy, winx, winy, CFRA, dflag, v3d->spacetype); - + gp_draw_data_all(scene, gpd, offsx, offsy, winx, winy, CFRA, dflag, v3d->spacetype); } void ED_gpencil_draw_ex(Scene *scene, bGPdata *gpd, int winx, int winy, const int cfra, const char spacetype) { int dflag = GP_DRAWDATA_NOSTATUS | GP_DRAWDATA_ONLYV2D; - + gp_draw_data_all(scene, gpd, 0, 0, winx, winy, cfra, dflag, spacetype); } |