mirrors/SDL
1
0
Fork 0
mirror of https://github.com/libsdl-org/SDL.git synced 2025-09-23 19:48:29 +00:00
Code Issues Packages Projects Releases Wiki Activity

gpu: Check shader format support in PrepareDriver

Browse Source
This commit is contained in:
Ethan Lee
2025-05-19 08:56:29 -04:00
committed by Sam Lantinga
parent 8289656a4e
commit 510126ee63
5 changed files with 37 additions and 32 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
src/gpu/d3d12/SDL_gpu_d3d12.c
View File

@@ -8333,6 +8333,17 @@ static bool D3D12_PrepareDriver(SDL_VideoDevice *_this, SDL_PropertiesID props)
IDXGIFactory6 *factory6;
IDXGIAdapter1 *adapter;
// Early check to see if the app has _any_ D3D12 formats, if not we don't
// have to fuss with loading D3D in the first place.
bool has_dxbc = SDL_GetBooleanProperty(props, SDL_PROP_GPU_DEVICE_CREATE_SHADERS_DXBC_BOOLEAN, false);
bool has_dxil = SDL_GetBooleanProperty(props, SDL_PROP_GPU_DEVICE_CREATE_SHADERS_DXIL_BOOLEAN, false);
bool supports_dxil = false;
// TODO SM7: bool has_spirv = SDL_GetBooleanProperty(props, SDL_PROP_GPU_DEVICE_CREATE_SHADERS_SPIRV_BOOLEAN, false);
// TODO SM7: bool supports_spirv = false;
if (!has_dxbc && !has_dxil) {
return false;
}
// Can we load D3D12?
d3d12Dll = SDL_LoadObject(D3D12_DLL);
@@ -8427,6 +8438,18 @@ static bool D3D12_PrepareDriver(SDL_VideoDevice *_this, SDL_PropertiesID props)
(void **)&device);
if (SUCCEEDED(res)) {
D3D12_FEATURE_DATA_SHADER_MODEL shaderModel;
shaderModel.HighestShaderModel = D3D_SHADER_MODEL_6_0;
res = ID3D12Device_CheckFeatureSupport(
device,
D3D12_FEATURE_SHADER_MODEL,
&shaderModel,
sizeof(shaderModel));
if (SUCCEEDED(res) && shaderModel.HighestShaderModel >= D3D_SHADER_MODEL_6_0) {
supports_dxil = true;
}
ID3D12Device_Release(device);
}
IDXGIAdapter1_Release(adapter);
@@ -8435,6 +8458,11 @@ static bool D3D12_PrepareDriver(SDL_VideoDevice *_this, SDL_PropertiesID props)
SDL_UnloadObject(d3d12Dll);
SDL_UnloadObject(dxgiDll);
if (!supports_dxil && !has_dxbc) {
SDL_LogWarn(SDL_LOG_CATEGORY_GPU, "D3D12: DXIL is not supported and DXBC is not being provided");
return false;
}
if (FAILED(res)) {
SDL_LogWarn(SDL_LOG_CATEGORY_GPU, "D3D12: Could not create D3D12Device with feature level " D3D_FEATURE_LEVEL_CHOICE_STR);
return false;
@@ -9207,7 +9235,6 @@ static SDL_GPUDevice *D3D12_CreateDevice(bool debugMode, bool preferLowPower, SD
SDL_GPUBootstrap D3D12Driver = {
"direct3d12",
SDL_GPU_SHADERFORMAT_DXIL | SDL_GPU_SHADERFORMAT_DXBC,
D3D12_PrepareDriver,
D3D12_CreateDevice
};