diff options
Diffstat (limited to 'source/blender/draw/engines/gpencil/gpencil_shader.c')
| -rw-r--r-- | source/blender/draw/engines/gpencil/gpencil_shader.c | 311 |
1 files changed, 311 insertions, 0 deletions
diff --git a/source/blender/draw/engines/gpencil/gpencil_shader.c b/source/blender/draw/engines/gpencil/gpencil_shader.c new file mode 100644 index 00000000000..8c7ba42a70e --- /dev/null +++ b/source/blender/draw/engines/gpencil/gpencil_shader.c @@ -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. + * + * Copyright 2019, Blender Foundation. + */ + +/** \file + * \ingroup draw + */ +#include "DRW_render.h" + +#include "gpencil_engine.h" + +extern char datatoc_gpencil_common_lib_glsl[]; +extern char datatoc_gpencil_frag_glsl[]; +extern char datatoc_gpencil_vert_glsl[]; +extern char datatoc_gpencil_antialiasing_frag_glsl[]; +extern char datatoc_gpencil_antialiasing_vert_glsl[]; +extern char datatoc_gpencil_layer_blend_frag_glsl[]; +extern char datatoc_gpencil_mask_invert_frag_glsl[]; +extern char datatoc_gpencil_depth_merge_frag_glsl[]; +extern char datatoc_gpencil_depth_merge_vert_glsl[]; +extern char datatoc_gpencil_vfx_frag_glsl[]; + +extern char datatoc_common_colormanagement_lib_glsl[]; +extern char datatoc_common_fullscreen_vert_glsl[]; +extern char datatoc_common_smaa_lib_glsl[]; +extern char datatoc_common_view_lib_glsl[]; + +static struct { + /* SMAA antialiasing */ + GPUShader *antialiasing_sh[3]; + /* GPencil Object rendering */ + GPUShader *gpencil_sh; + /* Final Compositing over rendered background. */ + GPUShader *composite_sh; + /* All layer blend types in one shader! */ + GPUShader *layer_blend_sh; + /* Merge the final object depth to the depth buffer. */ + GPUShader *depth_merge_sh; + /* Invert the content of the mask buffer. */ + GPUShader *mask_invert_sh; + /* Effects. */ + GPUShader *fx_composite_sh; + GPUShader *fx_colorize_sh; + GPUShader *fx_blur_sh; + GPUShader *fx_glow_sh; + GPUShader *fx_pixel_sh; + GPUShader *fx_rim_sh; + GPUShader *fx_shadow_sh; + GPUShader *fx_transform_sh; + /* general drawing shaders */ + GPUShader *gpencil_fill_sh; + GPUShader *gpencil_stroke_sh; + GPUShader *gpencil_point_sh; + GPUShader *gpencil_edit_point_sh; + GPUShader *gpencil_line_sh; + GPUShader *gpencil_drawing_fill_sh; + GPUShader *gpencil_fullscreen_sh; + GPUShader *gpencil_simple_fullscreen_sh; + GPUShader *gpencil_blend_fullscreen_sh; + GPUShader *gpencil_background_sh; + GPUShader *gpencil_paper_sh; +} g_shaders = {{NULL}}; + +void GPENCIL_shader_free(void) +{ + GPUShader **sh_data_as_array = (GPUShader **)&g_shaders; + for (int i = 0; i < (sizeof(g_shaders) / sizeof(GPUShader *)); i++) { + DRW_SHADER_FREE_SAFE(sh_data_as_array[i]); + } +} + +GPUShader *GPENCIL_shader_antialiasing(int stage) +{ + BLI_assert(stage < 3); + + if (!g_shaders.antialiasing_sh[stage]) { + char stage_define[32]; + BLI_snprintf(stage_define, sizeof(stage_define), "#define SMAA_STAGE %d\n", stage); + + g_shaders.antialiasing_sh[stage] = GPU_shader_create_from_arrays({ + .vert = + (const char *[]){ + "#define SMAA_INCLUDE_VS 1\n", + "#define SMAA_INCLUDE_PS 0\n", + "uniform vec4 viewportMetrics;\n", + datatoc_common_smaa_lib_glsl, + datatoc_gpencil_antialiasing_vert_glsl, + NULL, + }, + .frag = + (const char *[]){ + "#define SMAA_INCLUDE_VS 0\n", + "#define SMAA_INCLUDE_PS 1\n", + "uniform vec4 viewportMetrics;\n", + datatoc_common_smaa_lib_glsl, + datatoc_gpencil_antialiasing_frag_glsl, + NULL, + }, + .defs = + (const char *[]){ + "#define SMAA_GLSL_3\n", + "#define SMAA_RT_METRICS viewportMetrics\n", + "#define SMAA_PRESET_HIGH\n", + "#define SMAA_LUMA_WEIGHT float4(1.0, 1.0, 1.0, 0.0)\n", + "#define SMAA_NO_DISCARD\n", + stage_define, + NULL, + }, + }); + } + return g_shaders.antialiasing_sh[stage]; +} + +GPUShader *GPENCIL_shader_geometry_get(void) +{ + if (!g_shaders.gpencil_sh) { + g_shaders.gpencil_sh = GPU_shader_create_from_arrays({ + .vert = + (const char *[]){ + datatoc_common_view_lib_glsl, + datatoc_gpencil_common_lib_glsl, + datatoc_gpencil_vert_glsl, + NULL, + }, + .frag = + (const char *[]){ + datatoc_common_colormanagement_lib_glsl, + datatoc_gpencil_common_lib_glsl, + datatoc_gpencil_frag_glsl, + NULL, + }, + .defs = + (const char *[]){ + "#define GP_MATERIAL_BUFFER_LEN " STRINGIFY(GP_MATERIAL_BUFFER_LEN) "\n", + "#define GPENCIL_LIGHT_BUFFER_LEN " STRINGIFY(GPENCIL_LIGHT_BUFFER_LEN) "\n", + "#define UNIFORM_RESOURCE_ID\n", + NULL, + }, + }); + } + return g_shaders.gpencil_sh; +} + +GPUShader *GPENCIL_shader_layer_blend_get(void) +{ + if (!g_shaders.layer_blend_sh) { + g_shaders.layer_blend_sh = GPU_shader_create_from_arrays({ + .vert = + (const char *[]){ + datatoc_common_fullscreen_vert_glsl, + NULL, + }, + .frag = + (const char *[]){ + datatoc_gpencil_common_lib_glsl, + datatoc_gpencil_layer_blend_frag_glsl, + NULL, + }, + }); + } + return g_shaders.layer_blend_sh; +} + +GPUShader *GPENCIL_shader_mask_invert_get(void) +{ + if (!g_shaders.mask_invert_sh) { + g_shaders.mask_invert_sh = DRW_shader_create_fullscreen(datatoc_gpencil_mask_invert_frag_glsl, + NULL); + } + return g_shaders.mask_invert_sh; +} + +GPUShader *GPENCIL_shader_depth_merge_get(void) +{ + if (!g_shaders.depth_merge_sh) { + g_shaders.depth_merge_sh = GPU_shader_create_from_arrays({ + .vert = + (const char *[]){ + datatoc_common_view_lib_glsl, + datatoc_gpencil_depth_merge_vert_glsl, + NULL, + }, + .frag = + (const char *[]){ + datatoc_gpencil_depth_merge_frag_glsl, + NULL, + }, + }); + } + return g_shaders.depth_merge_sh; +} + +/* ------- FX Shaders --------- */ + +GPUShader *GPENCIL_shader_fx_blur_get(void) +{ + if (!g_shaders.fx_blur_sh) { + g_shaders.fx_blur_sh = DRW_shader_create_fullscreen(datatoc_gpencil_vfx_frag_glsl, + "#define BLUR\n"); + } + return g_shaders.fx_blur_sh; +} + +GPUShader *GPENCIL_shader_fx_colorize_get(void) +{ + if (!g_shaders.fx_colorize_sh) { + g_shaders.fx_colorize_sh = DRW_shader_create_fullscreen(datatoc_gpencil_vfx_frag_glsl, + "#define COLORIZE\n"); + } + return g_shaders.fx_colorize_sh; +} + +GPUShader *GPENCIL_shader_fx_composite_get(void) +{ + if (!g_shaders.fx_composite_sh) { + g_shaders.fx_composite_sh = DRW_shader_create_fullscreen(datatoc_gpencil_vfx_frag_glsl, + "#define COMPOSITE\n"); + } + return g_shaders.fx_composite_sh; +} + +GPUShader *GPENCIL_shader_fx_glow_get(void) +{ + if (!g_shaders.fx_glow_sh) { + g_shaders.fx_glow_sh = GPU_shader_create_from_arrays({ + .vert = + (const char *[]){ + datatoc_common_fullscreen_vert_glsl, + NULL, + }, + .frag = + (const char *[]){ + datatoc_gpencil_common_lib_glsl, + datatoc_gpencil_vfx_frag_glsl, + NULL, + }, + .defs = + (const char *[]){ + "#define GLOW\n", + NULL, + }, + }); + } + return g_shaders.fx_glow_sh; +} + +GPUShader *GPENCIL_shader_fx_pixelize_get(void) +{ + if (!g_shaders.fx_pixel_sh) { + g_shaders.fx_pixel_sh = DRW_shader_create_fullscreen(datatoc_gpencil_vfx_frag_glsl, + "#define PIXELIZE\n"); + } + return g_shaders.fx_pixel_sh; +} + +GPUShader *GPENCIL_shader_fx_rim_get(void) +{ + if (!g_shaders.fx_rim_sh) { + g_shaders.fx_rim_sh = GPU_shader_create_from_arrays({ + .vert = + (const char *[]){ + datatoc_common_fullscreen_vert_glsl, + NULL, + }, + .frag = + (const char *[]){ + datatoc_gpencil_common_lib_glsl, + datatoc_gpencil_vfx_frag_glsl, + NULL, + }, + .defs = + (const char *[]){ + "#define RIM\n", + NULL, + }, + }); + } + return g_shaders.fx_rim_sh; +} + +GPUShader *GPENCIL_shader_fx_shadow_get(void) +{ + if (!g_shaders.fx_shadow_sh) { + g_shaders.fx_shadow_sh = DRW_shader_create_fullscreen(datatoc_gpencil_vfx_frag_glsl, + "#define SHADOW\n"); + } + return g_shaders.fx_shadow_sh; +} + +GPUShader *GPENCIL_shader_fx_transform_get(void) +{ + if (!g_shaders.fx_transform_sh) { + g_shaders.fx_transform_sh = DRW_shader_create_fullscreen(datatoc_gpencil_vfx_frag_glsl, + "#define TRANSFORM\n"); + } + return g_shaders.fx_transform_sh; +} |