include/Refresh.h

@@ -169,7 +169,10 @@ typedef enum Refresh_SampleCount
 	REFRESH_SAMPLECOUNT_1,
 	REFRESH_SAMPLECOUNT_2,
 	REFRESH_SAMPLECOUNT_4,
-	REFRESH_SAMPLECOUNT_8
+	REFRESH_SAMPLECOUNT_8,
+	REFRESH_SAMPLECOUNT_16,
+	REFRESH_SAMPLECOUNT_32,
+	REFRESH_SAMPLECOUNT_64
 } Refresh_SampleCount;
 
 typedef enum Refresh_CubeMapFace
@@ -464,6 +467,7 @@ typedef struct Refresh_TextureCreateInfo
 	uint32_t height;
 	uint32_t depth;
 	uint8_t isCube;
+	Refresh_SampleCount sampleCount;
 	uint32_t levelCount;
 	Refresh_TextureFormat format;
 	Refresh_TextureUsageFlags usageFlags;
@@ -522,6 +526,7 @@ typedef struct Refresh_DepthStencilState
 typedef struct Refresh_ColorAttachmentDescription
 {
 	Refresh_TextureFormat format;
+	Refresh_SampleCount sampleCount;
 	Refresh_ColorAttachmentBlendState blendState;
 } Refresh_ColorAttachmentDescription;
 
@@ -995,6 +1000,11 @@ REFRESHAPI void Refresh_QueueDestroyGraphicsPipeline(
 /* Begins a render pass.
  * This will also set a default viewport and scissor state.
  *
+ * renderArea:
+ * 		The area affected by the render pass.
+ * 		All load, store and resolve operations are restricted
+ * 		to the given rectangle.
+ * 		If NULL, a sensible default will be chosen.
  * colorAttachmentInfos:
  * 		A pointer to an array of Refresh_ColorAttachmentInfo structures
  * 		that contains render targets and clear values. May be NULL.
@@ -1004,6 +1014,7 @@ REFRESHAPI void Refresh_QueueDestroyGraphicsPipeline(
 REFRESHAPI void Refresh_BeginRenderPass(
 	Refresh_Device *device,
 	Refresh_CommandBuffer *commandBuffer,
+	Refresh_Rect *renderArea,
 	Refresh_ColorAttachmentInfo *colorAttachmentInfos,
 	uint32_t colorAttachmentCount,
 	Refresh_DepthStencilAttachmentInfo *depthStencilAttachmentInfo

src/Refresh.c

@@ -625,6 +625,7 @@ void Refresh_QueueDestroyGraphicsPipeline(
 void Refresh_BeginRenderPass(
 	Refresh_Device *device,
 	Refresh_CommandBuffer *commandBuffer,
+	Refresh_Rect *renderArea,
 	Refresh_ColorAttachmentInfo *colorAttachmentInfos,
 	uint32_t colorAttachmentCount,
 	Refresh_DepthStencilAttachmentInfo *depthStencilAttachmentInfo
@@ -633,6 +634,7 @@ void Refresh_BeginRenderPass(
 	device->BeginRenderPass(
 		device->driverData,
 		commandBuffer,
+		renderArea,
 		colorAttachmentInfos,
 		colorAttachmentCount,
 		depthStencilAttachmentInfo

src/Refresh_Driver.h

@@ -395,6 +395,7 @@ struct Refresh_Device
 	void(*BeginRenderPass)(
 		Refresh_Renderer *driverData,
 		Refresh_CommandBuffer *commandBuffer,
+		Refresh_Rect *renderArea,
 		Refresh_ColorAttachmentInfo *colorAttachmentInfos,
 		uint32_t colorAttachmentCount,
 		Refresh_DepthStencilAttachmentInfo *depthStencilAttachmentInfo

src/Refresh_Driver_Vulkan.c

@@ -971,7 +971,6 @@ typedef struct RenderPassHash
 	RenderPassColorTargetDescription colorTargetDescriptions[MAX_COLOR_TARGET_BINDINGS];
 	uint32_t colorAttachmentCount;
 	RenderPassDepthStencilTargetDescription depthStencilTargetDescription;
-	Refresh_SampleCount colorAttachmentSampleCount;
 } RenderPassHash;
 
 typedef struct RenderPassHashMap
@@ -998,11 +997,6 @@ static inline uint8_t RenderPassHash_Compare(
 		return 0;
 	}
 
-	if (a->colorAttachmentSampleCount != b->colorAttachmentSampleCount)
-	{
-		return 0;
-	}
-
 	for (i = 0; i < a->colorAttachmentCount; i += 1)
 	{
 		if (a->colorTargetDescriptions[i].format != b->colorTargetDescriptions[i].format)
@@ -2029,29 +2023,6 @@ static inline VkDeviceSize VULKAN_INTERNAL_BytesPerImage(
 	return blocksPerRow * blocksPerColumn * VULKAN_INTERNAL_BytesPerPixel(format);
 }
 
-static inline Refresh_SampleCount VULKAN_INTERNAL_GetMaxMultiSampleCount(
-	VulkanRenderer *renderer,
-	Refresh_SampleCount multiSampleCount
-) {
-	VkSampleCountFlags flags = renderer->physicalDeviceProperties.properties.limits.framebufferColorSampleCounts;
-	Refresh_SampleCount maxSupported = REFRESH_SAMPLECOUNT_1;
-
-	if (flags & VK_SAMPLE_COUNT_8_BIT)
-	{
-		maxSupported = REFRESH_SAMPLECOUNT_8;
-	}
-	else if (flags & VK_SAMPLE_COUNT_4_BIT)
-	{
-		maxSupported = REFRESH_SAMPLECOUNT_4;
-	}
-	else if (flags & VK_SAMPLE_COUNT_2_BIT)
-	{
-		maxSupported = REFRESH_SAMPLECOUNT_2;
-	}
-
-	return SDL_min(multiSampleCount, maxSupported);
-}
-
 /* Memory Management */
 
 static inline VkDeviceSize VULKAN_INTERNAL_NextHighestAlignment(
@@ -5460,12 +5431,6 @@ static VulkanRenderTarget* VULKAN_INTERNAL_CreateRenderTarget(
 	/* create resolve target for multisample */
 	if (multisampleCount > REFRESH_SAMPLECOUNT_1)
 	{
-		/* Find a compatible sample count to use */
-		multisampleCount = VULKAN_INTERNAL_GetMaxMultiSampleCount(
-			renderer,
-			multisampleCount
-		);
-
 		renderTarget->multisampleTexture =
 			VULKAN_INTERNAL_CreateTexture(
 				renderer,
@@ -5481,7 +5446,7 @@ static VulkanRenderTarget* VULKAN_INTERNAL_CreateRenderTarget(
 				VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT
 			);
 
-		renderTarget->multisampleCount = RefreshToVK_SampleCount[multisampleCount];
+		renderTarget->multisampleCount = multisampleCount;
 	}
 
 	/* create framebuffer compatible views for RenderTarget */
@@ -5575,7 +5540,6 @@ static VulkanRenderTarget* VULKAN_INTERNAL_FetchRenderTarget(
 
 static VkRenderPass VULKAN_INTERNAL_CreateRenderPass(
 	VulkanRenderer *renderer,
-	VulkanCommandBuffer *commandBuffer,
 	Refresh_ColorAttachmentInfo *colorAttachmentInfos,
 	uint32_t colorAttachmentCount,
 	Refresh_DepthStencilAttachmentInfo *depthStencilAttachmentInfo
@@ -5615,22 +5579,6 @@ static VkRenderPass VULKAN_INTERNAL_CreateRenderPass(
 		{
 			multisampling = 1;
 
-			/* Transition the multisample attachment */
-
-			VULKAN_INTERNAL_ImageMemoryBarrier(
-				renderer,
-				commandBuffer->commandBuffer,
-				RESOURCE_ACCESS_COLOR_ATTACHMENT_WRITE,
-				VK_IMAGE_ASPECT_COLOR_BIT,
-				0,
-				renderTarget->multisampleTexture->layerCount,
-				0,
-				renderTarget->multisampleTexture->levelCount,
-				0,
-				renderTarget->multisampleTexture->image,
-				&renderTarget->multisampleTexture->resourceAccessType
-			);
-
 			/* Resolve attachment and multisample attachment */
 
 			attachmentDescriptions[attachmentDescriptionCount].flags = 0;
@@ -5640,8 +5588,9 @@ static VkRenderPass VULKAN_INTERNAL_CreateRenderPass(
 			attachmentDescriptions[attachmentDescriptionCount].loadOp = RefreshToVK_LoadOp[
 				colorAttachmentInfos[i].loadOp
 			];
-			attachmentDescriptions[attachmentDescriptionCount].storeOp =
-				VK_ATTACHMENT_STORE_OP_STORE; /* Always store the resolve texture */
+			attachmentDescriptions[attachmentDescriptionCount].storeOp = RefreshToVK_StoreOp[
+				colorAttachmentInfos[i].storeOp
+			];
 			attachmentDescriptions[attachmentDescriptionCount].stencilLoadOp =
 				VK_ATTACHMENT_LOAD_OP_DONT_CARE;
 			attachmentDescriptions[attachmentDescriptionCount].stencilStoreOp =
@@ -5694,8 +5643,9 @@ static VkRenderPass VULKAN_INTERNAL_CreateRenderPass(
 			attachmentDescriptions[attachmentDescriptionCount].loadOp = RefreshToVK_LoadOp[
 				colorAttachmentInfos[i].loadOp
 			];
-			attachmentDescriptions[attachmentDescriptionCount].storeOp =
-				VK_ATTACHMENT_STORE_OP_STORE; /* Always store non-MSAA textures */
+			attachmentDescriptions[attachmentDescriptionCount].storeOp = RefreshToVK_StoreOp[
+				colorAttachmentInfos[i].storeOp
+			];
 			attachmentDescriptions[attachmentDescriptionCount].stencilLoadOp =
 				VK_ATTACHMENT_LOAD_OP_DONT_CARE;
 			attachmentDescriptions[attachmentDescriptionCount].stencilStoreOp =
@@ -5810,8 +5760,7 @@ static VkRenderPass VULKAN_INTERNAL_CreateRenderPass(
 
 static VkRenderPass VULKAN_INTERNAL_CreateTransientRenderPass(
 	VulkanRenderer *renderer,
-	Refresh_GraphicsPipelineAttachmentInfo attachmentInfo,
-	Refresh_SampleCount sampleCount
+	Refresh_GraphicsPipelineAttachmentInfo attachmentInfo
 ) {
 	VkAttachmentDescription attachmentDescriptions[2 * MAX_COLOR_TARGET_BINDINGS + 1];
 	VkAttachmentReference colorAttachmentReferences[MAX_COLOR_TARGET_BINDINGS];
@@ -5833,7 +5782,7 @@ static VkRenderPass VULKAN_INTERNAL_CreateTransientRenderPass(
 	{
 		attachmentDescription = attachmentInfo.colorAttachmentDescriptions[i];
 
-		if (sampleCount > REFRESH_SAMPLECOUNT_1)
+		if (attachmentDescription.sampleCount > REFRESH_SAMPLECOUNT_1)
 		{
 			multisampling = 1;
 
@@ -5861,9 +5810,7 @@ static VkRenderPass VULKAN_INTERNAL_CreateTransientRenderPass(
 			attachmentDescriptions[attachmentDescriptionCount].format = RefreshToVK_SurfaceFormat[
 				attachmentDescription.format
 			];
-			attachmentDescriptions[attachmentDescriptionCount].samples = RefreshToVK_SampleCount[
-				sampleCount
-			];
+			attachmentDescriptions[attachmentDescriptionCount].samples = VK_SAMPLE_COUNT_1_BIT;
 			attachmentDescriptions[attachmentDescriptionCount].loadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
 			attachmentDescriptions[attachmentDescriptionCount].storeOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
 			attachmentDescriptions[attachmentDescriptionCount].stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
@@ -5993,7 +5940,6 @@ static Refresh_GraphicsPipeline* VULKAN_CreateGraphicsPipeline(
 ) {
 	VkResult vulkanResult;
 	uint32_t i;
-	Refresh_SampleCount actualSampleCount;
 
 	VulkanGraphicsPipeline *graphicsPipeline = (VulkanGraphicsPipeline*) SDL_malloc(sizeof(VulkanGraphicsPipeline));
 	VkGraphicsPipelineCreateInfo vkPipelineCreateInfo;
@@ -6031,19 +5977,11 @@ static Refresh_GraphicsPipeline* VULKAN_CreateGraphicsPipeline(
 
 	VulkanRenderer *renderer = (VulkanRenderer*) driverData;
 
-	/* Find a compatible sample count to use */
-
-	actualSampleCount = VULKAN_INTERNAL_GetMaxMultiSampleCount(
-		renderer,
-		pipelineCreateInfo->multisampleState.multisampleCount
-	);
-
 	/* Create a "compatible" render pass */
 
 	VkRenderPass transientRenderPass = VULKAN_INTERNAL_CreateTransientRenderPass(
 		renderer,
-		pipelineCreateInfo->attachmentInfo,
-		actualSampleCount
+		pipelineCreateInfo->attachmentInfo
 	);
 
 	/* Dynamic state */
@@ -6174,7 +6112,9 @@ static Refresh_GraphicsPipeline* VULKAN_CreateGraphicsPipeline(
 	multisampleStateCreateInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO;
 	multisampleStateCreateInfo.pNext = NULL;
 	multisampleStateCreateInfo.flags = 0;
-	multisampleStateCreateInfo.rasterizationSamples = RefreshToVK_SampleCount[actualSampleCount];
+	multisampleStateCreateInfo.rasterizationSamples = RefreshToVK_SampleCount[
+		pipelineCreateInfo->multisampleState.multisampleCount
+	];
 	multisampleStateCreateInfo.sampleShadingEnable = VK_FALSE;
 	multisampleStateCreateInfo.minSampleShading = 1.0f;
 	multisampleStateCreateInfo.pSampleMask =
@@ -8040,7 +7980,6 @@ static void VULKAN_QueueDestroyGraphicsPipeline(
 
 static VkRenderPass VULKAN_INTERNAL_FetchRenderPass(
 	VulkanRenderer *renderer,
-	VulkanCommandBuffer *commandBuffer,
 	Refresh_ColorAttachmentInfo *colorAttachmentInfos,
 	uint32_t colorAttachmentCount,
 	Refresh_DepthStencilAttachmentInfo *depthStencilAttachmentInfo
@@ -8059,11 +7998,6 @@ static VkRenderPass VULKAN_INTERNAL_FetchRenderPass(
 		hash.colorTargetDescriptions[i].storeOp = colorAttachmentInfos[i].storeOp;
 	}
 
-	if (colorAttachmentCount > 0)
-	{
-		hash.colorAttachmentSampleCount = colorAttachmentInfos[0].sampleCount;
-	}
-
 	hash.colorAttachmentCount = colorAttachmentCount;
 
 	if (depthStencilAttachmentInfo == NULL)
@@ -8096,7 +8030,6 @@ static VkRenderPass VULKAN_INTERNAL_FetchRenderPass(
 
 	renderPass = VULKAN_INTERNAL_CreateRenderPass(
 		renderer,
-		commandBuffer,
 		colorAttachmentInfos,
 		colorAttachmentCount,
 		depthStencilAttachmentInfo
@@ -8361,6 +8294,7 @@ static void VULKAN_SetScissor(
 static void VULKAN_BeginRenderPass(
 	Refresh_Renderer *driverData,
 	Refresh_CommandBuffer *commandBuffer,
+	Refresh_Rect *renderArea,
 	Refresh_ColorAttachmentInfo *colorAttachmentInfos,
 	uint32_t colorAttachmentCount,
 	Refresh_DepthStencilAttachmentInfo *depthStencilAttachmentInfo
@@ -8373,7 +8307,6 @@ static void VULKAN_BeginRenderPass(
 	VulkanTexture *texture;
 	VkClearValue *clearValues;
 	uint32_t clearCount = colorAttachmentCount;
-	uint32_t multisampleAttachmentCount = 0;
 	uint32_t i;
 	VkImageAspectFlags depthAspectFlags;
 	Refresh_Viewport defaultViewport;
@@ -8423,7 +8356,6 @@ static void VULKAN_BeginRenderPass(
 
 	renderPass = VULKAN_INTERNAL_FetchRenderPass(
 		renderer,
-		vulkanCommandBuffer,
 		colorAttachmentInfos,
 		colorAttachmentCount,
 		depthStencilAttachmentInfo
@@ -8461,12 +8393,6 @@ static void VULKAN_BeginRenderPass(
 			&texture->resourceAccessType
 		);
 
-		if (colorAttachmentInfos[i].sampleCount > REFRESH_SAMPLECOUNT_1)
-		{
-			clearCount += 1;
-			multisampleAttachmentCount += 1;
-		}
-
 		VULKAN_INTERNAL_TrackTexture(renderer, vulkanCommandBuffer, texture);
 	}
 
@@ -8504,21 +8430,12 @@ static void VULKAN_BeginRenderPass(
 
 	clearValues = SDL_stack_alloc(VkClearValue, clearCount);
 
-	for (i = 0; i < colorAttachmentCount + multisampleAttachmentCount; i += 1)
+	for (i = 0; i < colorAttachmentCount; i += 1)
 	{
 		clearValues[i].color.float32[0] = colorAttachmentInfos[i].clearColor.x;
 		clearValues[i].color.float32[1] = colorAttachmentInfos[i].clearColor.y;
 		clearValues[i].color.float32[2] = colorAttachmentInfos[i].clearColor.z;
 		clearValues[i].color.float32[3] = colorAttachmentInfos[i].clearColor.w;
-
-		if (colorAttachmentInfos[i].sampleCount > REFRESH_SAMPLECOUNT_1)
-		{
-			i += 1;
-			clearValues[i].color.float32[0] = colorAttachmentInfos[i].clearColor.x;
-			clearValues[i].color.float32[1] = colorAttachmentInfos[i].clearColor.y;
-			clearValues[i].color.float32[2] = colorAttachmentInfos[i].clearColor.z;
-			clearValues[i].color.float32[3] = colorAttachmentInfos[i].clearColor.w;
-		}
 	}
 
 	if (depthStencilAttachmentInfo != NULL)
@@ -8536,10 +8453,21 @@ static void VULKAN_BeginRenderPass(
 	renderPassBeginInfo.framebuffer = framebuffer->framebuffer;
 	renderPassBeginInfo.pClearValues = clearValues;
 	renderPassBeginInfo.clearValueCount = clearCount;
-	renderPassBeginInfo.renderArea.extent.width = framebufferWidth;
-	renderPassBeginInfo.renderArea.extent.height = framebufferHeight;
-	renderPassBeginInfo.renderArea.offset.x = 0;
-	renderPassBeginInfo.renderArea.offset.y = 0;
+
+	if (renderArea != NULL)
+	{
+		renderPassBeginInfo.renderArea.extent.width = renderArea->w;
+		renderPassBeginInfo.renderArea.extent.height = renderArea->h;
+		renderPassBeginInfo.renderArea.offset.x = renderArea->x;
+		renderPassBeginInfo.renderArea.offset.y = renderArea->y;
+	}
+	else
+	{
+		renderPassBeginInfo.renderArea.extent.width = framebufferWidth;
+		renderPassBeginInfo.renderArea.extent.height = framebufferHeight;
+		renderPassBeginInfo.renderArea.offset.x = 0;
+		renderPassBeginInfo.renderArea.offset.y = 0;
+	}
 
 	renderer->vkCmdBeginRenderPass(
 		vulkanCommandBuffer->commandBuffer,