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gpu: Rework driver name queries, add GetGPUShaderFormats

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This commit is contained in:
Ethan Lee
2024-09-13 11:16:43 -04:00
parent 6d92de5d3a
commit 96e147b2b9
12 changed files with 129 additions and 67 deletions
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57
src/gpu/SDL_gpu.c
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@@ -371,7 +371,7 @@ void SDL_GPU_BlitCommon(
// Driver Functions
#ifndef SDL_GPU_DISABLED
static SDL_GPUDriver SDL_GPUSelectBackend(
static const SDL_GPUBootstrap * SDL_GPUSelectBackend(
SDL_VideoDevice *_this,
const char *gpudriver,
SDL_GPUShaderFormat format_flags)
@@ -384,16 +384,16 @@ static SDL_GPUDriver SDL_GPUSelectBackend(
if (SDL_strcasecmp(gpudriver, backends[i]->name) == 0) {
if (!(backends[i]->shader_formats & format_flags)) {
SDL_LogError(SDL_LOG_CATEGORY_GPU, "Required shader format for backend %s not provided!", gpudriver);
return SDL_GPU_DRIVER_INVALID;
return NULL;
}
if (backends[i]->PrepareDriver(_this)) {
return backends[i]->backendflag;
return backends[i];
}
}
}
SDL_LogError(SDL_LOG_CATEGORY_GPU, "SDL_HINT_GPU_DRIVER %s unsupported!", gpudriver);
return SDL_GPU_DRIVER_INVALID;
return NULL;
}
for (i = 0; backends[i]; i += 1) {
@@ -402,12 +402,12 @@ static SDL_GPUDriver SDL_GPUSelectBackend(
continue;
}
if (backends[i]->PrepareDriver(_this)) {
return backends[i]->backendflag;
return backends[i];
}
}
SDL_LogError(SDL_LOG_CATEGORY_GPU, "No supported SDL_GPU backend found!");
return SDL_GPU_DRIVER_INVALID;
return NULL;
}
#endif // SDL_GPU_DISABLED
@@ -455,10 +455,9 @@ SDL_GPUDevice *SDL_CreateGPUDeviceWithProperties(SDL_PropertiesID props)
bool debug_mode;
bool preferLowPower;
int i;
const char *gpudriver;
SDL_GPUDevice *result = NULL;
SDL_GPUDriver selectedBackend;
const SDL_GPUBootstrap *selectedBackend;
SDL_VideoDevice *_this = SDL_GetVideoDevice();
if (_this == NULL) {
@@ -494,17 +493,12 @@ SDL_GPUDevice *SDL_CreateGPUDeviceWithProperties(SDL_PropertiesID props)
}
selectedBackend = SDL_GPUSelectBackend(_this, gpudriver, format_flags);
if (selectedBackend != SDL_GPU_DRIVER_INVALID) {
for (i = 0; backends[i]; i += 1) {
if (backends[i]->backendflag == selectedBackend) {
result = backends[i]->CreateDevice(debug_mode, preferLowPower, props);
if (result != NULL) {
result->backend = backends[i]->backendflag;
result->shader_formats = backends[i]->shader_formats;
result->debug_mode = debug_mode;
break;
}
}
if (selectedBackend != NULL) {
result = selectedBackend->CreateDevice(debug_mode, preferLowPower, props);
if (result != NULL) {
result->backend = selectedBackend->name;
result->shader_formats = selectedBackend->shader_formats;
result->debug_mode = debug_mode;
}
}
return result;
@@ -521,13 +515,34 @@ void SDL_DestroyGPUDevice(SDL_GPUDevice *device)
device->DestroyDevice(device);
}
SDL_GPUDriver SDL_GetGPUDriver(SDL_GPUDevice *device)
int SDL_GetNumGPUDrivers(void)
{
CHECK_DEVICE_MAGIC(device, SDL_GPU_DRIVER_INVALID);
return SDL_arraysize(backends) - 1;
}
const char * SDL_GetGPUDriver(int index)
{
if (index < 0 || index >= SDL_GetNumGPUDrivers()) {
SDL_InvalidParamError("index");
return NULL;
}
return backends[index]->name;
}
const char * SDL_GetGPUDeviceDriver(SDL_GPUDevice *device)
{
CHECK_DEVICE_MAGIC(device, NULL);
return device->backend;
}
SDL_GPUShaderFormat SDL_GetGPUShaderFormats(SDL_GPUDevice *device)
{
CHECK_DEVICE_MAGIC(device, SDL_GPU_SHADERFORMAT_INVALID);
return device->shader_formats;
}
Uint32 SDL_GPUTextureFormatTexelBlockSize(
SDL_GPUTextureFormat format)
{