BramReuling/SDL
1
0
Fork 0
mirror of https://github.com/libsdl-org/SDL.git synced 2026-06-27 08:18:41 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 2

Fix GetSampler() bug for INDEX8 pixel format (#15099)

Browse source 
(cherry picked from commit 4a4ae4a79d)
This commit is contained in:
Void Star Caster 2026-02-24 17:05:30 +01:00 • committed by Sam Lantinga
parent 27439467ce
commit 01d8bb5b7c
5 changed files with 34 additions and 38 deletions
Download patch file Download diff file Expand all files Collapse all files

18
src/render/gpu/SDL_render_gpu.c
View file

@ -774,6 +774,11 @@ static void SetViewportAndScissor(GPU_RenderData *data)
static SDL_GPUSampler *GetSampler(GPU_RenderData *data, SDL_PixelFormat format, SDL_ScaleMode scale_mode, SDL_TextureAddressMode address_u, SDL_TextureAddressMode address_v)
{
if (format == SDL_PIXELFORMAT_INDEX8) {
// We'll do linear sampling in the shader if needed
scale_mode = SDL_SCALEMODE_NEAREST;
}
Uint32 key = RENDER_SAMPLER_HASHKEY(scale_mode, address_u, address_v);
SDL_assert(key < SDL_arraysize(data->samplers));
if (!data->samplers[key]) {
@ -787,16 +792,9 @@ static SDL_GPUSampler *GetSampler(GPU_RenderData *data, SDL_PixelFormat format,
break;
case SDL_SCALEMODE_PIXELART: // Uses linear sampling
case SDL_SCALEMODE_LINEAR:
if (format == SDL_PIXELFORMAT_INDEX8) {
// We'll do linear sampling in the shader
sci.min_filter = SDL_GPU_FILTER_NEAREST;
sci.mag_filter = SDL_GPU_FILTER_NEAREST;
sci.mipmap_mode = SDL_GPU_SAMPLERMIPMAPMODE_NEAREST;
} else {
sci.min_filter = SDL_GPU_FILTER_LINEAR;
sci.mag_filter = SDL_GPU_FILTER_LINEAR;
sci.mipmap_mode = SDL_GPU_SAMPLERMIPMAPMODE_LINEAR;
}
sci.min_filter = SDL_GPU_FILTER_LINEAR;
sci.mag_filter = SDL_GPU_FILTER_LINEAR;
sci.mipmap_mode = SDL_GPU_SAMPLERMIPMAPMODE_LINEAR;
break;
default:
SDL_SetError("Unknown scale mode: %d", scale_mode);