diff options
Diffstat (limited to 'source/blender/draw/engines/overlay/overlay_edit_uv.c')
| -rw-r--r-- | source/blender/draw/engines/overlay/overlay_edit_uv.c | 394 |
1 files changed, 394 insertions, 0 deletions
diff --git a/source/blender/draw/engines/overlay/overlay_edit_uv.c b/source/blender/draw/engines/overlay/overlay_edit_uv.c new file mode 100644 index 00000000000..109db6433e0 --- /dev/null +++ b/source/blender/draw/engines/overlay/overlay_edit_uv.c @@ -0,0 +1,394 @@ +/* + * 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. + * + * Copyright 2019, Blender Foundation. + */ + +/** \file + * \ingroup draw_engine + */ +#include "DRW_render.h" + +#include "draw_cache_impl.h" +#include "draw_manager_text.h" + +#include "BKE_image.h" + +#include "DNA_mesh_types.h" + +#include "ED_image.h" + +#include "GPU_batch.h" + +#include "UI_interface.h" +#include "UI_resources.h" + +#include "overlay_private.h" + +typedef struct OVERLAY_StretchingAreaTotals { + void *next, *prev; + float *total_area; + float *total_area_uv; +} OVERLAY_StretchingAreaTotals; + +static OVERLAY_UVLineStyle edit_uv_line_style_from_space_image(const SpaceImage *sima) +{ + const bool is_uv_editor = sima->mode == SI_MODE_UV; + if (is_uv_editor) { + switch (sima->dt_uv) { + case SI_UVDT_OUTLINE: + return OVERLAY_UV_LINE_STYLE_OUTLINE; + case SI_UVDT_BLACK: + return OVERLAY_UV_LINE_STYLE_BLACK; + case SI_UVDT_WHITE: + return OVERLAY_UV_LINE_STYLE_WHITE; + case SI_UVDT_DASH: + return OVERLAY_UV_LINE_STYLE_DASH; + default: + return OVERLAY_UV_LINE_STYLE_BLACK; + } + } + else { + return OVERLAY_UV_LINE_STYLE_SHADOW; + } +} + +/* -------------------------------------------------------------------- */ +/** \name Internal API + * \{ */ + +void OVERLAY_edit_uv_init(OVERLAY_Data *vedata) +{ + OVERLAY_StorageList *stl = vedata->stl; + OVERLAY_PrivateData *pd = stl->pd; + const DRWContextState *draw_ctx = DRW_context_state_get(); + SpaceImage *sima = (SpaceImage *)draw_ctx->space_data; + const Scene *scene = draw_ctx->scene; + const ToolSettings *ts = scene->toolsettings; + + Image *image = sima->image; + /* By design no image is an image type. This so editor shows UV's by default. */ + const bool is_image_type = + (image == NULL) || ELEM(image->type, IMA_TYPE_IMAGE, IMA_TYPE_MULTILAYER, IMA_TYPE_UV_TEST); + const bool is_uv_editor = sima->mode == SI_MODE_UV; + const bool has_edit_object = (draw_ctx->object_edit) != NULL; + const bool is_paint_mode = sima->mode == SI_MODE_PAINT; + const bool is_view_mode = sima->mode == SI_MODE_VIEW; + const bool is_edit_mode = draw_ctx->object_mode == OB_MODE_EDIT; + const bool do_uv_overlay = is_image_type && is_uv_editor && has_edit_object; + const bool show_modified_uvs = sima->flag & SI_DRAWSHADOW; + const bool is_tiled_image = image && (image->source == IMA_SRC_TILED); + const bool do_faces = ((sima->flag & SI_NO_DRAWFACES) == 0); + const bool do_face_dots = (ts->uv_flag & UV_SYNC_SELECTION) ? + (ts->selectmode & SCE_SELECT_FACE) != 0 : + (ts->uv_selectmode == UV_SELECT_FACE); + const bool do_uvstretching_overlay = is_image_type && is_uv_editor && is_edit_mode && + ((sima->flag & SI_DRAW_STRETCH) != 0); + pd->edit_uv.do_faces = do_faces && !do_uvstretching_overlay; + pd->edit_uv.do_face_dots = do_faces && do_face_dots; + + pd->edit_uv.do_uv_overlay = do_uv_overlay; + pd->edit_uv.do_uv_shadow_overlay = + is_image_type && + ((is_paint_mode && + ((draw_ctx->object_mode & (OB_MODE_TEXTURE_PAINT | OB_MODE_EDIT)) != 0)) || + (is_view_mode && ((draw_ctx->object_mode & (OB_MODE_TEXTURE_PAINT)) != 0)) || + (do_uv_overlay && (show_modified_uvs))); + pd->edit_uv.do_uv_stretching_overlay = do_uvstretching_overlay; + pd->edit_uv.uv_opacity = sima->uv_opacity; + pd->edit_uv.do_tiled_image_overlay = is_image_type && is_tiled_image; + + pd->edit_uv.dash_length = 4.0f * UI_DPI_FAC; + pd->edit_uv.line_style = edit_uv_line_style_from_space_image(sima); + pd->edit_uv.do_smooth_wire = ((U.gpu_flag & USER_GPU_FLAG_OVERLAY_SMOOTH_WIRE) > 0); + + pd->edit_uv.draw_type = sima->dt_uvstretch; + BLI_listbase_clear(&pd->edit_uv.totals); + pd->edit_uv.total_area_ratio = 0.0f; + pd->edit_uv.total_area_ratio_inv = 0.0f; + + ED_space_image_get_uv_aspect(sima, &pd->edit_uv.aspect[0], &pd->edit_uv.aspect[1]); +} + +void OVERLAY_edit_uv_cache_init(OVERLAY_Data *vedata) +{ + OVERLAY_StorageList *stl = vedata->stl; + OVERLAY_PassList *psl = vedata->psl; + OVERLAY_PrivateData *pd = stl->pd; + + if (pd->edit_uv.do_uv_overlay || pd->edit_uv.do_uv_shadow_overlay) { + /* uv edges */ + { + DRW_PASS_CREATE(psl->edit_uv_edges_ps, + DRW_STATE_WRITE_COLOR | DRW_STATE_WRITE_DEPTH | DRW_STATE_DEPTH_LESS_EQUAL | + DRW_STATE_BLEND_ALPHA); + GPUShader *sh = OVERLAY_shader_edit_uv_edges_get(); + if (pd->edit_uv.do_uv_shadow_overlay) { + pd->edit_uv_shadow_edges_grp = DRW_shgroup_create(sh, psl->edit_uv_edges_ps); + DRW_shgroup_uniform_block(pd->edit_uv_shadow_edges_grp, "globalsBlock", G_draw.block_ubo); + DRW_shgroup_uniform_int_copy( + pd->edit_uv_shadow_edges_grp, "lineStyle", OVERLAY_UV_LINE_STYLE_SHADOW); + DRW_shgroup_uniform_float_copy( + pd->edit_uv_shadow_edges_grp, "alpha", pd->edit_uv.uv_opacity); + DRW_shgroup_uniform_float( + pd->edit_uv_shadow_edges_grp, "dashLength", &pd->edit_uv.dash_length, 1); + DRW_shgroup_uniform_bool( + pd->edit_uv_shadow_edges_grp, "doSmoothWire", &pd->edit_uv.do_smooth_wire, 1); + } + + if (pd->edit_uv.do_uv_overlay) { + pd->edit_uv_edges_grp = DRW_shgroup_create(sh, psl->edit_uv_edges_ps); + DRW_shgroup_uniform_block(pd->edit_uv_edges_grp, "globalsBlock", G_draw.block_ubo); + DRW_shgroup_uniform_int_copy(pd->edit_uv_edges_grp, "lineStyle", pd->edit_uv.line_style); + DRW_shgroup_uniform_float_copy(pd->edit_uv_edges_grp, "alpha", pd->edit_uv.uv_opacity); + DRW_shgroup_uniform_float( + pd->edit_uv_edges_grp, "dashLength", &pd->edit_uv.dash_length, 1); + DRW_shgroup_uniform_bool( + pd->edit_uv_edges_grp, "doSmoothWire", &pd->edit_uv.do_smooth_wire, 1); + } + } + } + + if (pd->edit_uv.do_uv_overlay) { + /* uv verts */ + { + DRW_PASS_CREATE(psl->edit_uv_verts_ps, + DRW_STATE_WRITE_COLOR | DRW_STATE_WRITE_DEPTH | DRW_STATE_DEPTH_LESS_EQUAL | + DRW_STATE_BLEND_ALPHA); + GPUShader *sh = OVERLAY_shader_edit_uv_verts_get(); + pd->edit_uv_verts_grp = DRW_shgroup_create(sh, psl->edit_uv_verts_ps); + + const float point_size = UI_GetThemeValuef(TH_FACEDOT_SIZE); + + DRW_shgroup_uniform_block(pd->edit_uv_verts_grp, "globalsBlock", G_draw.block_ubo); + DRW_shgroup_uniform_float_copy( + pd->edit_uv_verts_grp, "pointSize", (point_size + 1.5f) * M_SQRT2); + DRW_shgroup_uniform_float_copy(pd->edit_uv_verts_grp, "outlineWidth", 0.75f); + } + + /* uv faces */ + if (pd->edit_uv.do_faces) { + DRW_PASS_CREATE(psl->edit_uv_faces_ps, + DRW_STATE_WRITE_COLOR | DRW_STATE_DEPTH_ALWAYS | DRW_STATE_BLEND_ALPHA); + GPUShader *sh = OVERLAY_shader_edit_uv_face_get(); + pd->edit_uv_faces_grp = DRW_shgroup_create(sh, psl->edit_uv_faces_ps); + DRW_shgroup_uniform_block(pd->edit_uv_faces_grp, "globalsBlock", G_draw.block_ubo); + DRW_shgroup_uniform_float(pd->edit_uv_faces_grp, "uvOpacity", &pd->edit_uv.uv_opacity, 1); + } + + /* uv face dots */ + if (pd->edit_uv.do_face_dots) { + const float point_size = UI_GetThemeValuef(TH_FACEDOT_SIZE); + GPUShader *sh = OVERLAY_shader_edit_uv_face_dots_get(); + pd->edit_uv_face_dots_grp = DRW_shgroup_create(sh, psl->edit_uv_verts_ps); + DRW_shgroup_uniform_block(pd->edit_uv_face_dots_grp, "globalsBlock", G_draw.block_ubo); + DRW_shgroup_uniform_float_copy(pd->edit_uv_face_dots_grp, "pointSize", point_size); + } + } + + /* uv stretching */ + if (pd->edit_uv.do_uv_stretching_overlay) { + DRW_PASS_CREATE(psl->edit_uv_stretching_ps, + DRW_STATE_WRITE_COLOR | DRW_STATE_DEPTH_ALWAYS | DRW_STATE_BLEND_ALPHA); + if (pd->edit_uv.draw_type == SI_UVDT_STRETCH_ANGLE) { + GPUShader *sh = OVERLAY_shader_edit_uv_stretching_angle_get(); + pd->edit_uv_stretching_grp = DRW_shgroup_create(sh, psl->edit_uv_stretching_ps); + DRW_shgroup_uniform_block(pd->edit_uv_stretching_grp, "globalsBlock", G_draw.block_ubo); + DRW_shgroup_uniform_vec2_copy(pd->edit_uv_stretching_grp, "aspect", pd->edit_uv.aspect); + } + else /* SI_UVDT_STRETCH_AREA */ { + GPUShader *sh = OVERLAY_shader_edit_uv_stretching_area_get(); + pd->edit_uv_stretching_grp = DRW_shgroup_create(sh, psl->edit_uv_stretching_ps); + DRW_shgroup_uniform_block(pd->edit_uv_stretching_grp, "globalsBlock", G_draw.block_ubo); + DRW_shgroup_uniform_float( + pd->edit_uv_stretching_grp, "totalAreaRatio", &pd->edit_uv.total_area_ratio, 1); + DRW_shgroup_uniform_float( + pd->edit_uv_stretching_grp, "totalAreaRatioInv", &pd->edit_uv.total_area_ratio_inv, 1); + } + } + + if (pd->edit_uv.do_tiled_image_overlay) { + const DRWContextState *draw_ctx = DRW_context_state_get(); + SpaceImage *sima = (SpaceImage *)draw_ctx->space_data; + Image *image = sima->image; + GPUBatch *geom = DRW_cache_quad_wires_get(); + float obmat[4][4]; + unit_m4(obmat); + + DRW_PASS_CREATE(psl->edit_uv_tiled_image_borders_ps, + DRW_STATE_WRITE_COLOR | DRW_STATE_DEPTH_ALWAYS); + GPUShader *sh = OVERLAY_shader_edit_uv_tiled_image_borders_get(); + + float theme_color[4], selected_color[4]; + UI_GetThemeColorShade4fv(TH_BACK, 60, theme_color); + UI_GetThemeColor4fv(TH_FACE_SELECT, selected_color); + srgb_to_linearrgb_v4(theme_color, theme_color); + srgb_to_linearrgb_v4(selected_color, selected_color); + + DRWShadingGroup *grp = DRW_shgroup_create(sh, psl->edit_uv_tiled_image_borders_ps); + DRW_shgroup_uniform_vec4_copy(grp, "color", theme_color); + DRW_shgroup_uniform_vec3_copy(grp, "offset", (float[3]){0.0f, 0.0f, 0.0f}); + + LISTBASE_FOREACH (ImageTile *, tile, &image->tiles) { + const int tile_x = ((tile->tile_number - 1001) % 10); + const int tile_y = ((tile->tile_number - 1001) / 10); + obmat[3][1] = (float)tile_y; + obmat[3][0] = (float)tile_x; + DRW_shgroup_call_obmat(grp, geom, obmat); + } + + /* Active tile border */ + ImageTile *active_tile = BLI_findlink(&image->tiles, image->active_tile_index); + obmat[3][0] = (float)((active_tile->tile_number - 1001) % 10); + obmat[3][1] = (float)((active_tile->tile_number - 1001) / 10); + grp = DRW_shgroup_create(sh, psl->edit_uv_tiled_image_borders_ps); + DRW_shgroup_uniform_vec4_copy(grp, "color", selected_color); + DRW_shgroup_call_obmat(grp, geom, obmat); + + struct DRWTextStore *dt = DRW_text_cache_ensure(); + uchar color[4]; + /* Color Management: Exception here as texts are drawn in sRGB space directly. */ + UI_GetThemeColorShade4ubv(TH_BACK, 60, color); + char text[16]; + LISTBASE_FOREACH (ImageTile *, tile, &image->tiles) { + BLI_snprintf(text, 5, "%d", tile->tile_number); + float tile_location[3] = { + ((tile->tile_number - 1001) % 10), ((tile->tile_number - 1001) / 10), 0.0f}; + DRW_text_cache_add(dt, + tile_location, + text, + strlen(text), + 10, + 10, + DRW_TEXT_CACHE_GLOBALSPACE | DRW_TEXT_CACHE_ASCII, + color); + } + } +} + +void OVERLAY_edit_uv_cache_populate(OVERLAY_Data *vedata, Object *ob) +{ + OVERLAY_StorageList *stl = vedata->stl; + OVERLAY_PrivateData *pd = stl->pd; + GPUBatch *geom; + const bool is_edit_object = DRW_object_is_in_edit_mode(ob); + + const DRWContextState *draw_ctx = DRW_context_state_get(); + const bool draw_shadows = (draw_ctx->object_mode != OB_MODE_OBJECT) && + (ob->mode == draw_ctx->object_mode); + if (is_edit_object) { + if (pd->edit_uv.do_uv_overlay) { + geom = DRW_mesh_batch_cache_get_edituv_edges(ob->data); + if (geom) { + DRW_shgroup_call_obmat(pd->edit_uv_edges_grp, geom, NULL); + } + geom = DRW_mesh_batch_cache_get_edituv_verts(ob->data); + if (geom) { + DRW_shgroup_call_obmat(pd->edit_uv_verts_grp, geom, NULL); + } + if (pd->edit_uv.do_faces) { + geom = DRW_mesh_batch_cache_get_edituv_faces(ob->data); + if (geom) { + DRW_shgroup_call_obmat(pd->edit_uv_faces_grp, geom, NULL); + } + } + if (pd->edit_uv.do_face_dots) { + geom = DRW_mesh_batch_cache_get_edituv_facedots(ob->data); + if (geom) { + DRW_shgroup_call_obmat(pd->edit_uv_face_dots_grp, geom, NULL); + } + } + } + + if (pd->edit_uv.do_uv_stretching_overlay) { + Mesh *me = ob->data; + + if (pd->edit_uv.draw_type == SI_UVDT_STRETCH_ANGLE) { + geom = DRW_mesh_batch_cache_get_edituv_faces_stretch_angle(me); + } + else /* SI_UVDT_STRETCH_AREA */ { + OVERLAY_StretchingAreaTotals *totals = MEM_mallocN(sizeof(OVERLAY_StretchingAreaTotals), + __func__); + BLI_addtail(&pd->edit_uv.totals, totals); + geom = DRW_mesh_batch_cache_get_edituv_faces_stretch_area( + me, &totals->total_area, &totals->total_area_uv); + } + + if (geom) { + DRW_shgroup_call_obmat(pd->edit_uv_stretching_grp, geom, NULL); + } + } + } + + if (draw_shadows) { + if (pd->edit_uv.do_uv_shadow_overlay) { + geom = DRW_mesh_batch_cache_get_uv_edges(ob->data); + if (geom) { + DRW_shgroup_call_obmat(pd->edit_uv_shadow_edges_grp, geom, NULL); + } + } + } +} + +static void edit_uv_stretching_update_ratios(OVERLAY_Data *vedata) +{ + OVERLAY_StorageList *stl = vedata->stl; + OVERLAY_PrivateData *pd = stl->pd; + + if (pd->edit_uv.draw_type == SI_UVDT_STRETCH_AREA) { + float total_area = 0.0f; + float total_area_uv = 0.0f; + + LISTBASE_FOREACH (OVERLAY_StretchingAreaTotals *, totals, &pd->edit_uv.totals) { + total_area += *totals->total_area; + total_area_uv += *totals->total_area_uv; + } + + if (total_area > FLT_EPSILON && total_area_uv > FLT_EPSILON) { + pd->edit_uv.total_area_ratio = total_area / total_area_uv; + pd->edit_uv.total_area_ratio_inv = total_area_uv / total_area; + } + } + BLI_freelistN(&pd->edit_uv.totals); +} + +void OVERLAY_edit_uv_draw(OVERLAY_Data *vedata) +{ + OVERLAY_PassList *psl = vedata->psl; + OVERLAY_StorageList *stl = vedata->stl; + OVERLAY_PrivateData *pd = stl->pd; + + if (pd->edit_uv.do_tiled_image_overlay) { + DRW_draw_pass(psl->edit_uv_tiled_image_borders_ps); + } + + if (pd->edit_uv.do_uv_stretching_overlay) { + edit_uv_stretching_update_ratios(vedata); + DRW_draw_pass(psl->edit_uv_stretching_ps); + } + if (pd->edit_uv.do_uv_overlay) { + if (pd->edit_uv.do_faces) { + DRW_draw_pass(psl->edit_uv_faces_ps); + } + DRW_draw_pass(psl->edit_uv_edges_ps); + + DRW_draw_pass(psl->edit_uv_verts_ps); + } + else if (pd->edit_uv.do_uv_shadow_overlay) { + DRW_draw_pass(psl->edit_uv_edges_ps); + } +} + +/* \{ */ |