vulkan gpu: set the sample count for depth prepass

slouken · slouken · commit 819907687869 · 2025-11-22T07:54:21.000-08:00
Fixes libsdl-org#14500 (cherry picked from commit 1fc0934)
diff --git a/src/gpu/vulkan/SDL_gpu_vulkan.c b/src/gpu/vulkan/SDL_gpu_vulkan.c
@@ -7169,6 +7169,8 @@ static VkRenderPass VULKAN_INTERNAL_FetchRenderPass(
     key.sampleCount = VK_SAMPLE_COUNT_1_BIT;
     if (numColorTargets > 0) {
         key.sampleCount = SDLToVK_SampleCount[((VulkanTextureContainer *)colorTargetInfos[0].texture)->header.info.sample_count];
+    } else if (numColorTargets == 0 && depthStencilTargetInfo != NULL) {
+        key.sampleCount = SDLToVK_SampleCount[((VulkanTextureContainer *)depthStencilTargetInfo->texture)->header.info.sample_count];
     }
 
     key.numColorTargets = numColorTargets;

Original file line number	Diff line number	Diff line change
`@@ -7169,6 +7169,8 @@ static VkRenderPass VULKAN_INTERNAL_FetchRenderPass(`
`7169`	`7169`	`key.sampleCount = VK_SAMPLE_COUNT_1_BIT;`
`7170`	`7170`	`if (numColorTargets > 0) {`
`7171`	`7171`	`key.sampleCount = SDLToVK_SampleCount[((VulkanTextureContainer *)colorTargetInfos[0].texture)->header.info.sample_count];`
	`7172`	`+ } else if (numColorTargets == 0 && depthStencilTargetInfo != NULL) {`
	`7173`	`+ key.sampleCount = SDLToVK_SampleCount[((VulkanTextureContainer *)depthStencilTargetInfo->texture)->header.info.sample_count];`
`7172`	`7174`	`}`
`7173`	`7175`
`7174`	`7176`	`key.numColorTargets = numColorTargets;`