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render: Add support for private-platform shaders in GPU backend

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This commit is contained in:
Ethan Lee
2026-01-05 09:48:34 -05:00
parent 9a5700e9a3
commit 406cd277d2
1 changed files with 25 additions and 0 deletions
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25
src/render/gpu/SDL_shaders_gpu.c
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@@ -33,6 +33,15 @@ typedef struct GPU_ShaderModuleSource
SDL_GPUShaderFormat format;
} GPU_ShaderModuleSource;
#if defined(SDL_GPU_PRIVATE)
#define IF_PRIVATE(...) __VA_ARGS__
#define HAVE_PRIVATE_SHADERS 1
#include "SDL_render_private_shaders.h"
#else
#define IF_PRIVATE(...)
#define HAVE_PRIVATE_SHADERS 0
#endif
#if defined(SDL_GPU_VULKAN) && SDL_GPU_VULKAN
#define IF_VULKAN(...) __VA_ARGS__
#define HAVE_SPIRV_SHADERS 1
@@ -62,6 +71,7 @@ typedef struct GPU_ShaderModuleSource
typedef struct GPU_ShaderSources
{
IF_PRIVATE(GPU_ShaderModuleSource private;)
IF_VULKAN(GPU_ShaderModuleSource spirv;)
IF_D3D12(GPU_ShaderModuleSource dxil60;)
IF_METAL(GPU_ShaderModuleSource msl;)
@@ -69,6 +79,9 @@ typedef struct GPU_ShaderSources
unsigned int num_uniform_buffers;
} GPU_ShaderSources;
#define SHADER_PRIVATE(code) \
IF_PRIVATE(.private = { code, sizeof(code), SDL_GPU_SHADERFORMAT_PRIVATE }, )
#define SHADER_SPIRV(code) \
IF_VULKAN(.spirv = { code, sizeof(code), SDL_GPU_SHADERFORMAT_SPIRV }, )
@@ -83,6 +96,7 @@ static const GPU_ShaderSources vert_shader_sources[NUM_VERT_SHADERS] = {
[VERT_SHADER_LINEPOINT] = {
.num_samplers = 0,
.num_uniform_buffers = 1,
SHADER_PRIVATE(linepoint_vert_private)
SHADER_SPIRV(linepoint_vert_spv)
SHADER_DXIL60(linepoint_vert_dxil)
SHADER_METAL(linepoint_vert_msl)
@@ -90,6 +104,7 @@ static const GPU_ShaderSources vert_shader_sources[NUM_VERT_SHADERS] = {
[VERT_SHADER_TRI_COLOR] = {
.num_samplers = 0,
.num_uniform_buffers = 1,
SHADER_PRIVATE(tri_color_vert_private)
SHADER_SPIRV(tri_color_vert_spv)
SHADER_DXIL60(tri_color_vert_dxil)
SHADER_METAL(tri_color_vert_msl)
@@ -97,6 +112,7 @@ static const GPU_ShaderSources vert_shader_sources[NUM_VERT_SHADERS] = {
[VERT_SHADER_TRI_TEXTURE] = {
.num_samplers = 0,
.num_uniform_buffers = 1,
SHADER_PRIVATE(tri_texture_vert_private)
SHADER_SPIRV(tri_texture_vert_spv)
SHADER_DXIL60(tri_texture_vert_dxil)
SHADER_METAL(tri_texture_vert_msl)
@@ -107,6 +123,7 @@ static const GPU_ShaderSources frag_shader_sources[NUM_FRAG_SHADERS] = {
[FRAG_SHADER_COLOR] = {
.num_samplers = 0,
.num_uniform_buffers = 1,
SHADER_PRIVATE(color_frag_private)
SHADER_SPIRV(color_frag_spv)
SHADER_DXIL60(color_frag_dxil)
SHADER_METAL(color_frag_msl)
@@ -114,6 +131,7 @@ static const GPU_ShaderSources frag_shader_sources[NUM_FRAG_SHADERS] = {
[FRAG_SHADER_TEXTURE_RGB] = {
.num_samplers = 1,
.num_uniform_buffers = 1,
SHADER_PRIVATE(texture_rgb_frag_private)
SHADER_SPIRV(texture_rgb_frag_spv)
SHADER_DXIL60(texture_rgb_frag_dxil)
SHADER_METAL(texture_rgb_frag_msl)
@@ -121,6 +139,7 @@ static const GPU_ShaderSources frag_shader_sources[NUM_FRAG_SHADERS] = {
[FRAG_SHADER_TEXTURE_RGBA] = {
.num_samplers = 1,
.num_uniform_buffers = 1,
SHADER_PRIVATE(texture_rgba_frag_private)
SHADER_SPIRV(texture_rgba_frag_spv)
SHADER_DXIL60(texture_rgba_frag_dxil)
SHADER_METAL(texture_rgba_frag_msl)
@@ -128,6 +147,7 @@ static const GPU_ShaderSources frag_shader_sources[NUM_FRAG_SHADERS] = {
[FRAG_SHADER_TEXTURE_ADVANCED] = {
.num_samplers = 3,
.num_uniform_buffers = 1,
SHADER_PRIVATE(texture_advanced_frag_private)
SHADER_SPIRV(texture_advanced_frag_spv)
SHADER_DXIL60(texture_advanced_frag_dxil)
SHADER_METAL(texture_advanced_frag_msl)
@@ -143,6 +163,10 @@ static SDL_GPUShader *CompileShader(const GPU_ShaderSources *sources, SDL_GPUDev
if (formats == SDL_GPU_SHADERFORMAT_INVALID) {
// SDL_GetGPUShaderFormats already set the error
return NULL;
#if HAVE_PRIVATE_SHADERS
} else if (formats & SDL_GPU_SHADERFORMAT_PRIVATE) {
sms = &sources->private;
#endif // HAVE_PRIVATE_SHADERS
#if HAVE_SPIRV_SHADERS
} else if (formats & SDL_GPU_SHADERFORMAT_SPIRV) {
sms = &sources->spirv;
@@ -251,6 +275,7 @@ void GPU_FillSupportedShaderFormats(SDL_PropertiesID props)
custom_shaders = true;
}
if (!custom_shaders) {
SDL_SetBooleanProperty(props, SDL_PROP_GPU_DEVICE_CREATE_SHADERS_PRIVATE_BOOLEAN, HAVE_PRIVATE_SHADERS);
SDL_SetBooleanProperty(props, SDL_PROP_GPU_DEVICE_CREATE_SHADERS_SPIRV_BOOLEAN, HAVE_SPIRV_SHADERS);
SDL_SetBooleanProperty(props, SDL_PROP_GPU_DEVICE_CREATE_SHADERS_DXIL_BOOLEAN, HAVE_DXIL60_SHADERS);
SDL_SetBooleanProperty(props, SDL_PROP_GPU_DEVICE_CREATE_SHADERS_MSL_BOOLEAN, HAVE_METAL_SHADERS);