DRW: de-duplicate vertex & weight paint engines

These were almost exact duplicates, use one engine for drawing both
kinds of vertex color.

1 files changed, 0 insertions, 292 deletions

diff --git a/source/blender/draw/modes/paint_weight_mode.c b/source/blender/draw/modes/paint_weight_mode.c
deleted file mode 100644
index 42c46f6c284..00000000000
--- a/source/blender/draw/modes/paint_weight_mode.c
+++ /dev/null
@@ -1,292 +0,0 @@
-/*
- * 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 2016, Blender Foundation.
- */
-
-/** \file \ingroup draw
- */
-
-#include "DRW_render.h"
-
-/* If builtin shaders are needed */
-#include "GPU_shader.h"
-
-#include "draw_common.h"
-
-#include "DNA_mesh_types.h"
-#include "DNA_view3d_types.h"
-
-#include "DEG_depsgraph_query.h"
-
-extern char datatoc_paint_face_vert_glsl[];
-extern char datatoc_paint_weight_vert_glsl[];
-extern char datatoc_paint_weight_frag_glsl[];
-extern char datatoc_paint_wire_vert_glsl[];
-extern char datatoc_paint_wire_frag_glsl[];
-extern char datatoc_paint_vert_frag_glsl[];
-extern char datatoc_common_globals_lib_glsl[];
-
-extern char datatoc_gpu_shader_uniform_color_frag_glsl[];
-
-/* *********** LISTS *********** */
-
-typedef struct PAINT_WEIGHT_PassList {
-	struct DRWPass *weight_faces;
-	struct DRWPass *wire_overlay;
-	struct DRWPass *wire_select_overlay;
-	struct DRWPass *face_select_overlay;
-	struct DRWPass *vert_select_overlay;
-} PAINT_WEIGHT_PassList;
-
-typedef struct PAINT_WEIGHT_StorageList {
-	struct PAINT_WEIGHT_PrivateData *g_data;
-} PAINT_WEIGHT_StorageList;
-
-typedef struct PAINT_WEIGHT_Data {
-	void *engine_type;
-	DRWViewportEmptyList *fbl;
-	DRWViewportEmptyList *txl;
-	PAINT_WEIGHT_PassList *psl;
-	PAINT_WEIGHT_StorageList *stl;
-} PAINT_WEIGHT_Data;
-
-typedef struct PAINT_WEIGHT_Shaders {
-	struct GPUShader *weight_face;
-	struct GPUShader *wire_overlay;
-	struct GPUShader *wire_select_overlay;
-	struct GPUShader *face_select_overlay;
-	struct GPUShader *vert_select_overlay;
-} PAINT_WEIGHT_Shaders;
-
-/* *********** STATIC *********** */
-
-static struct {
-	PAINT_WEIGHT_Shaders sh_data[GPU_SHADER_CFG_LEN];
-
-	int actdef;
-} e_data = {NULL}; /* Engine data */
-
-typedef struct PAINT_WEIGHT_PrivateData {
-	DRWShadingGroup *fweights_shgrp;
-	DRWShadingGroup *lwire_shgrp;
-	DRWShadingGroup *lwire_select_shgrp;
-	DRWShadingGroup *face_shgrp;
-	DRWShadingGroup *vert_select_shgrp;
-} PAINT_WEIGHT_PrivateData;
-
-/* *********** FUNCTIONS *********** */
-
-static void PAINT_WEIGHT_engine_init(void *UNUSED(vedata))
-{
-	const DRWContextState *draw_ctx = DRW_context_state_get();
-	PAINT_WEIGHT_Shaders *sh_data = &e_data.sh_data[draw_ctx->sh_cfg];
-	const GPUShaderConfigData *sh_cfg_data = &GPU_shader_cfg_data[draw_ctx->sh_cfg];
-
-	if (draw_ctx->sh_cfg == GPU_SHADER_CFG_CLIPPED) {
-		DRW_state_clip_planes_set_from_rv3d(draw_ctx->rv3d);
-	}
-
-	if (!sh_data->weight_face) {
-		sh_data->weight_face = GPU_shader_create_from_arrays({
-		        .vert = (const char *[]){sh_cfg_data->lib, datatoc_common_globals_lib_glsl, datatoc_paint_weight_vert_glsl, NULL},
-		        .frag = (const char *[]){datatoc_common_globals_lib_glsl, datatoc_paint_weight_frag_glsl, NULL},
-		        .defs = (const char *[]){sh_cfg_data->def, NULL},
-		});
-
-		sh_data->wire_overlay = GPU_shader_create_from_arrays({
-		        .vert = (const char *[]){sh_cfg_data->lib, datatoc_common_globals_lib_glsl, datatoc_paint_wire_vert_glsl, NULL},
-		        .frag = (const char *[]){datatoc_paint_wire_frag_glsl, NULL},
-		        .defs = (const char *[]){sh_cfg_data->def, "#define WEIGHT_MODE\n", NULL},
-		});
-		sh_data->wire_select_overlay = GPU_shader_create_from_arrays({
-		        .vert = (const char *[]){sh_cfg_data->lib, datatoc_common_globals_lib_glsl, datatoc_paint_wire_vert_glsl, NULL},
-		        .frag = (const char *[]){datatoc_paint_wire_frag_glsl, NULL},
-		        .defs = (const char *[]){sh_cfg_data->def, "#define WEIGHT_MODE\n" "#define USE_SELECT\n", NULL},
-		});
-		sh_data->face_select_overlay = GPU_shader_create_from_arrays({
-		        .vert = (const char *[]){sh_cfg_data->lib, datatoc_paint_face_vert_glsl, NULL},
-		        .frag = (const char *[]){datatoc_gpu_shader_uniform_color_frag_glsl, NULL},
-		        .defs = (const char *[]){sh_cfg_data->def, NULL},
-		});
-
-		sh_data->vert_select_overlay = GPU_shader_create_from_arrays({
-		        .vert = (const char *[]){sh_cfg_data->lib, datatoc_common_globals_lib_glsl, datatoc_paint_wire_vert_glsl, NULL},
-		        .frag = (const char *[]){datatoc_common_globals_lib_glsl, datatoc_paint_vert_frag_glsl, NULL},
-		        .defs = (const char *[]){sh_cfg_data->def, "#define USE_SELECT\n", NULL},
-		});
-	}
-}
-
-static void PAINT_WEIGHT_cache_init(void *vedata)
-{
-	PAINT_WEIGHT_PassList *psl = ((PAINT_WEIGHT_Data *)vedata)->psl;
-	PAINT_WEIGHT_StorageList *stl = ((PAINT_WEIGHT_Data *)vedata)->stl;
-	const DRWContextState *draw_ctx = DRW_context_state_get();
-	const View3D *v3d = draw_ctx->v3d;
-	RegionView3D *rv3d = draw_ctx->rv3d;
-	PAINT_WEIGHT_Shaders *sh_data = &e_data.sh_data[draw_ctx->sh_cfg];
-
-	if (!stl->g_data) {
-		/* Alloc transient pointers */
-		stl->g_data = MEM_mallocN(sizeof(*stl->g_data), __func__);
-	}
-
-	{
-		/* Create a pass */
-		DRWPass *pass = DRW_pass_create(
-		        "Weight Pass",
-		        DRW_STATE_WRITE_COLOR | DRW_STATE_DEPTH_EQUAL | DRW_STATE_MULTIPLY);
-		DRWShadingGroup *shgrp = DRW_shgroup_create(sh_data->weight_face, pass);
-		DRW_shgroup_uniform_bool_copy(shgrp, "drawContours", (v3d->overlay.wpaint_flag & V3D_OVERLAY_WPAINT_CONTOURS) != 0);
-		DRW_shgroup_uniform_float(shgrp, "opacity", &v3d->overlay.weight_paint_mode_opacity, 1);
-		DRW_shgroup_uniform_texture(shgrp, "colorramp", G_draw.weight_ramp);
-		DRW_shgroup_uniform_block(shgrp, "globalsBlock", G_draw.block_ubo);
-		if (rv3d->rflag & RV3D_CLIPPING) {
-			DRW_shgroup_world_clip_planes_from_rv3d(shgrp, rv3d);
-		}
-		psl->weight_faces = pass;
-		stl->g_data->fweights_shgrp = shgrp;
-	}
-
-	{
-		DRWPass *pass = DRW_pass_create(
-		        "Wire Pass",
-		        DRW_STATE_WRITE_COLOR | DRW_STATE_WRITE_DEPTH | DRW_STATE_DEPTH_LESS_EQUAL | DRW_STATE_OFFSET_NEGATIVE);
-		DRWShadingGroup *shgrp = DRW_shgroup_create(sh_data->wire_overlay, pass);
-		DRW_shgroup_uniform_block(shgrp, "globalsBlock", G_draw.block_ubo);
-		if (rv3d->rflag & RV3D_CLIPPING) {
-			DRW_shgroup_world_clip_planes_from_rv3d(shgrp, rv3d);
-		}
-		psl->wire_overlay = pass;
-		stl->g_data->lwire_shgrp = shgrp;
-	}
-
-	{
-		DRWPass *pass = DRW_pass_create(
-		        "Wire Mask Pass",
-		        DRW_STATE_WRITE_COLOR | DRW_STATE_WRITE_DEPTH | DRW_STATE_DEPTH_LESS_EQUAL | DRW_STATE_OFFSET_NEGATIVE);
-		DRWShadingGroup *shgrp = DRW_shgroup_create(sh_data->wire_select_overlay, pass);
-		DRW_shgroup_uniform_block(shgrp, "globalsBlock", G_draw.block_ubo);
-		if (rv3d->rflag & RV3D_CLIPPING) {
-			DRW_shgroup_world_clip_planes_from_rv3d(shgrp, rv3d);
-		}
-		psl->wire_select_overlay = pass;
-		stl->g_data->lwire_select_shgrp = shgrp;
-	}
-
-	{
-		static float col[4] = {1.0f, 1.0f, 1.0f, 0.2f};
-		DRWPass *pass = DRW_pass_create(
-		        "Face Mask Pass",
-		        DRW_STATE_WRITE_COLOR | DRW_STATE_WRITE_DEPTH | DRW_STATE_DEPTH_LESS_EQUAL | DRW_STATE_BLEND);
-		DRWShadingGroup *shgrp = DRW_shgroup_create(sh_data->face_select_overlay, pass);
-		DRW_shgroup_uniform_vec4(shgrp, "color", col, 1);
-		if (rv3d->rflag & RV3D_CLIPPING) {
-			DRW_shgroup_world_clip_planes_from_rv3d(shgrp, rv3d);
-		}
-		psl->face_select_overlay = pass;
-		stl->g_data->face_shgrp = shgrp;
-	}
-
-	{
-		DRWPass *pass = DRW_pass_create(
-		        "Vert Mask Pass",
-		        DRW_STATE_WRITE_COLOR | DRW_STATE_WRITE_DEPTH | DRW_STATE_DEPTH_LESS_EQUAL | DRW_STATE_OFFSET_NEGATIVE);
-		DRWShadingGroup *shgrp = DRW_shgroup_create(sh_data->vert_select_overlay, pass);
-		DRW_shgroup_uniform_block(shgrp, "globalsBlock", G_draw.block_ubo);
-		if (rv3d->rflag & RV3D_CLIPPING) {
-			DRW_shgroup_world_clip_planes_from_rv3d(shgrp, rv3d);
-		}
-		psl->vert_select_overlay = pass;
-		stl->g_data->vert_select_shgrp = shgrp;
-	}
-}
-
-static void PAINT_WEIGHT_cache_populate(void *vedata, Object *ob)
-{
-	PAINT_WEIGHT_StorageList *stl = ((PAINT_WEIGHT_Data *)vedata)->stl;
-	const DRWContextState *draw_ctx = DRW_context_state_get();
-	const View3D *v3d = draw_ctx->v3d;
-
-	if ((ob->type == OB_MESH) && (ob == draw_ctx->obact)) {
-		const Mesh *me_orig = DEG_get_original_object(ob)->data;
-		const bool use_wire = (v3d->overlay.paint_flag & V3D_OVERLAY_PAINT_WIRE) != 0;
-		const bool use_surface = v3d->overlay.weight_paint_mode_opacity != 0.0f;
-		const bool use_face_sel = (me_orig->editflag & ME_EDIT_PAINT_FACE_SEL) != 0;
-		const bool use_vert_sel = (me_orig->editflag & ME_EDIT_PAINT_VERT_SEL) != 0;
-		struct GPUBatch *geom;
-
-		if (use_surface) {
-			geom = DRW_cache_mesh_surface_weights_get(ob);
-			DRW_shgroup_call_add(stl->g_data->fweights_shgrp, geom, ob->obmat);
-		}
-
-		if (use_face_sel || use_wire) {
-			DRWShadingGroup *shgrp = use_face_sel ? stl->g_data->lwire_select_shgrp : stl->g_data->lwire_shgrp;
-			geom = DRW_cache_mesh_surface_edges_get(ob);
-			DRW_shgroup_call_add(shgrp, geom, ob->obmat);
-		}
-
-		if (use_face_sel) {
-			geom = DRW_cache_mesh_surface_get(ob);
-			DRW_shgroup_call_add(stl->g_data->face_shgrp, geom, ob->obmat);
-		}
-
-		if (use_vert_sel) {
-			geom = DRW_cache_mesh_all_verts_get(ob);
-			DRW_shgroup_call_add(stl->g_data->vert_select_shgrp, geom, ob->obmat);
-		}
-	}
-}
-
-static void PAINT_WEIGHT_draw_scene(void *vedata)
-{
-	PAINT_WEIGHT_PassList *psl = ((PAINT_WEIGHT_Data *)vedata)->psl;
-
-	DRW_draw_pass(psl->weight_faces);
-	DRW_draw_pass(psl->wire_overlay);
-	DRW_draw_pass(psl->wire_select_overlay);
-	DRW_draw_pass(psl->vert_select_overlay);
-	DRW_draw_pass(psl->face_select_overlay);
-}
-
-static void PAINT_WEIGHT_engine_free(void)
-{
-	for (int sh_data_index = 0; sh_data_index < ARRAY_SIZE(e_data.sh_data); sh_data_index++) {
-		PAINT_WEIGHT_Shaders *sh_data = &e_data.sh_data[sh_data_index];
-		GPUShader **sh_data_as_array = (GPUShader **)sh_data;
-		for (int i = 0; i < (sizeof(PAINT_WEIGHT_Shaders) / sizeof(GPUShader *)); i++) {
-			DRW_SHADER_FREE_SAFE(sh_data_as_array[i]);
-		}
-	}
-}
-
-static const DrawEngineDataSize PAINT_WEIGHT_data_size = DRW_VIEWPORT_DATA_SIZE(PAINT_WEIGHT_Data);
-
-DrawEngineType draw_engine_paint_weight_type = {
-	NULL, NULL,
-	N_("PaintWeightMode"),
-	&PAINT_WEIGHT_data_size,
-	&PAINT_WEIGHT_engine_init,
-	&PAINT_WEIGHT_engine_free,
-	&PAINT_WEIGHT_cache_init,
-	&PAINT_WEIGHT_cache_populate,
-	NULL,
-	NULL,
-	&PAINT_WEIGHT_draw_scene,
-	NULL,
-	NULL,
-};