Differential D5490 Diff 40272 source/blender/draw/engines/select/select_debug_engine.c

Changeset View

Standalone View

source/blender/draw/engines/select/select_debug_engine.c

This file was added.

				/*
				* 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
				*
				* Engine for debuging the selection map drawing.
				*/

				#include "DNA_ID.h"
				#include "DNA_vec_types.h"

				#include "DRW_engine.h"
				#include "DRW_select_buffer.h"

				#include "draw_cache.h"
				#include "draw_manager.h"

				#include "select_engine.h"

				#define SELECT_DEBUG_ENGINE "SELECT_DEBUG_ENGINE"

				/* -------------------------------------------------------------------- */
				/** \name STATIC
				* \{ */

				typedef struct SELECTIDDEBUG_PassList {
				struct DRWPass *debug_pass;
				} SELECTIDDEBUG_PassList;

				typedef struct SELECTIDDEBUG_Data {
				void *engine_type;
				DRWViewportEmptyList *fbl;
				DRWViewportEmptyList *txl;
				SELECTIDDEBUG_PassList *psl;
				DRWViewportEmptyList *stl;
				} SELECTIDDEBUG_Data;

				static struct {
				struct GPUShader *select_debug_sh;
				} e_data = {{NULL}}; /* Engine data */

				/** \} */

				/* -------------------------------------------------------------------- */
				/** \name Engine Functions
				* \{ */

				static void select_debug_engine_init(void *vedata)
				{
				SELECTIDDEBUG_PassList psl = ((SELECTIDDEBUG_Data )vedata)->psl;

				if (!e_data.select_debug_sh) {
				e_data.select_debug_sh = DRW_shader_create_fullscreen(
				"uniform usampler2D image;"
				"in vec4 uvcoordsvar;"
				"out vec4 fragColor;"
				"void main() {"
				" uint px = texture(image, uvcoordsvar.xy).r;"
				" fragColor = vec4(1.0, 1.0, 1.0, 0.0);"
				" if (px != 0u) {"
				" fragColor.a = 1.0;"
				" px &= 0x3Fu;"
				" fragColor.r = ((px >> 0) & 0x3u) / float(0x3u);"
				" fragColor.g = ((px >> 2) & 0x3u) / float(0x3u);"
				" fragColor.b = ((px >> 4) & 0x3u) / float(0x3u);"
				" }"
				"}\n",
				NULL);
				}

				psl->debug_pass = DRW_pass_create("Debug Pass", DRW_STATE_WRITE_COLOR \| DRW_STATE_BLEND_ALPHA);
				GPUTexture *texture_u32 = DRW_engine_select_texture_get();
				if (texture_u32) {
				DRWShadingGroup *shgrp = DRW_shgroup_create(e_data.select_debug_sh, psl->debug_pass);
				struct GPUBatch *quad = DRW_cache_fullscreen_quad_get();
				DRW_shgroup_call(shgrp, quad, NULL);
				fclemUnsubmitted Done Inline Actions Nitpick, you can draw one procedural triangle instead of using the fullscreen quad batch. fclem: Nitpick, you can draw one procedural triangle instead of using the fullscreen quad batch.
				DRW_shgroup_uniform_texture(shgrp, "image", texture_u32);
				}
				}

				static void select_debug_draw_scene(void *vedata)
				{
				SELECTIDDEBUG_PassList psl = ((SELECTIDDEBUG_Data )vedata)->psl;
				DRW_draw_pass(psl->debug_pass);
				}

				static void select_debug_engine_free(void)
				{
				DRW_SHADER_FREE_SAFE(e_data.select_debug_sh);
				}

				/** \} */

				/* -------------------------------------------------------------------- */
				/** \name Engine Type
				* \{ */

				static const DrawEngineDataSize select_debug_data_size = DRW_VIEWPORT_DATA_SIZE(
				SELECTIDDEBUG_Data);

				DrawEngineType draw_engine_debug_select_type = {
				NULL,
				NULL,
				N_("Select ID Debug"),
				&select_debug_data_size,
				&select_debug_engine_init,
				&select_debug_engine_free,
				NULL,
				NULL,
				NULL,
				&select_debug_draw_scene,
				NULL,
				NULL,
				NULL,
				NULL,
				};

				/** \} */

				#undef SELECT_DEBUG_ENGINE