texture usage for auto layout transition

include/Refresh.h

@@ -141,15 +141,14 @@ typedef enum REFRESH_DepthFormat
     REFRESH_DEPTHFORMAT_D32_SFLOAT_S8_UINT
 } REFRESH_DepthFormat;
 
-typedef enum REFRESH_TextureLayout
+typedef enum REFRESH_TextureUsageFlagBits
 {
-	REFRESH_TEXTURELAYOUT_READ,
+	REFRESH_TEXTUREUSAGE_VERTEX_SAMPLER_BIT   = 0x00000001,
-	REFRESH_TEXTURELAYOUT_COLOR_TARGET,
+	REFRESH_TEXTUREUSAGE_FRAGMENT_SAMPLER_BIT = 0x00000002,
-	REFRESH_TEXTURELAYOUT_DEPTHSTENCIL_TARGET,
+	REFRESH_TEXTUREUSAGE_COLOR_TARGET_BIT     = 0x00000004
-	REFRESH_TEXTURELAYOUT_VERTEX_SAMPLER,
+} REFRESH_TextureUsageFlagBits;
-	REFRESH_TEXTURELAYOUT_FRAGMENT_SAMPLER,
+
-	REFRESH_TEXTURELAYOUT_WRITE
+typedef uint32_t REFRESH_TextureUsageFlags;
-} REFRESH_TextureLayout;
 
 typedef enum REFRESH_SampleCount
 {
@@ -733,7 +732,8 @@ REFRESHAPI REFRESH_ShaderModule* REFRESH_CreateShaderModule(
  * format:		The pixel format of the texture data.
  * width:		The width of the texture image.
  * height: 		The height of the texture image.
- * levelCount: 	The number of mipmap levels to allocate.
+ * levelCount:	The number of mipmap levels to allocate.
+ * usageFlags:	Specifies how the texture will be used.
  * 
  * Returns an allocated REFRESH_Texture* object. Note that the contents of
  * the texture are undefined until SetData is called.
@@ -744,7 +744,7 @@ REFRESHAPI REFRESH_Texture* REFRESH_CreateTexture2D(
 	uint32_t width,
 	uint32_t height,
 	uint32_t levelCount,
-	uint8_t canBeRenderTarget
+	REFRESH_TextureUsageFlags usageFlags
 );
 
 /* Creates a 3D texture.
@@ -754,6 +754,7 @@ REFRESHAPI REFRESH_Texture* REFRESH_CreateTexture2D(
  * height: 		The height of the texture image.
  * depth: 		The depth of the texture image.
  * levelCount: 	The number of mipmap levels to allocate.
+ * usageFlags:	Specifies how the texture will be used.
  *
  * Returns an allocated REFRESH_Texture* object. Note that the contents of
  * the texture are undefined until SetData is called.
@@ -765,7 +766,7 @@ REFRESHAPI REFRESH_Texture* REFRESH_CreateTexture3D(
 	uint32_t height,
 	uint32_t depth,
 	uint32_t levelCount,
-	uint8_t canBeRenderTarget
+	REFRESH_TextureUsageFlags usageFlags
 );
 
 /* Creates a texture cube.
@@ -773,6 +774,7 @@ REFRESHAPI REFRESH_Texture* REFRESH_CreateTexture3D(
  * format:		The pixel format of the texture data.
  * size: 		The length of the cube side.
  * levelCount: 	The number of mipmap levels to allocate.
+ * usageFlags:	Specifies how the texture will be used.
  * 
  * Returns an allocated REFRESH_Texture* object. Note that the contents of
  * the texture are undefined until SetData is called.
@@ -782,7 +784,7 @@ REFRESHAPI REFRESH_Texture* REFRESH_CreateTextureCube(
 	REFRESH_SurfaceFormat format,
 	uint32_t size,
 	uint32_t levelCount,
-	uint8_t canBeRenderTarget
+	REFRESH_TextureUsageFlags usageFlags
 );
 
 /* Creates a color target.
@@ -1263,24 +1265,6 @@ REFRESHAPI void REFRESH_BindIndexBuffer(
 	REFRESH_IndexElementSize indexElementSize
 );
 
-/* Transitions */
-
-/* Performs a texture layout transition.
- * Texture layouts must be transitioned for different texture use cases.
- *
- * NOTE: It is an error to perform a layout transition in a render pass.
- * 
- * layout:			The layout to transition to.
- * pTextures:		A pointer to an array of textures to transition.
- * textureCount:	The number of textures in the array to transition.
- */
-REFRESHAPI void REFRESH_TextureLayoutTransition(
-	REFRESH_Device *device,
-	REFRESH_TextureLayout layout,
-	REFRESH_Texture **pTextures,
-	uint32_t textureCount
-);
-
 /* Submission/Presentation */
 
 /* Queues an image to be presented to the screen.

src/Refresh.c

@@ -281,7 +281,7 @@ REFRESH_Texture* REFRESH_CreateTexture2D(
 	uint32_t width,
 	uint32_t height,
 	uint32_t levelCount,
-    uint8_t canBeRenderTarget
+    REFRESH_TextureUsageFlags usageFlags
 ) {
     NULL_RETURN_NULL(device);
     return device->CreateTexture2D(
@@ -290,7 +290,7 @@ REFRESH_Texture* REFRESH_CreateTexture2D(
         width,
         height,
         levelCount,
-        canBeRenderTarget
+        usageFlags
     );
 }
 
@@ -301,7 +301,7 @@ REFRESH_Texture* REFRESH_CreateTexture3D(
 	uint32_t height,
 	uint32_t depth,
 	uint32_t levelCount,
-    uint8_t canBeRenderTarget
+    REFRESH_TextureUsageFlags usageFlags
 ) {
     NULL_RETURN_NULL(device);
     return device->CreateTexture3D(
@@ -311,7 +311,7 @@ REFRESH_Texture* REFRESH_CreateTexture3D(
         height,
         depth,
         levelCount,
-        canBeRenderTarget
+        usageFlags
     );
 }
 
@@ -320,7 +320,7 @@ REFRESH_Texture* REFRESH_CreateTextureCube(
 	REFRESH_SurfaceFormat format,
 	uint32_t size,
 	uint32_t levelCount,
-    uint8_t canBeRenderTarget
+    REFRESH_TextureUsageFlags usageFlags
 ) {
     NULL_RETURN_NULL(device);
     return device->CreateTextureCube(
@@ -328,7 +328,7 @@ REFRESH_Texture* REFRESH_CreateTextureCube(
         format,
         size,
         levelCount,
-        canBeRenderTarget
+        usageFlags
     );
 }
 
@@ -811,21 +811,6 @@ void REFRESH_BindIndexBuffer(
     );
 }
 
-void REFRESH_TextureLayoutTransition(
-    REFRESH_Device *device,
-    REFRESH_TextureLayout layout,
-    REFRESH_Texture **pTextures,
-    uint32_t textureCount
-) {
-    NULL_RETURN(device);
-    device->TextureLayoutTransition(
-        device->driverData,
-        layout,
-        pTextures,
-        textureCount
-    );
-}
-
 void REFRESH_QueuePresent(
     REFRESH_Device *device,
     REFRESH_TextureSlice* textureSlice,

src/Refresh_Driver.h

@@ -239,7 +239,7 @@ struct REFRESH_Device
         uint32_t width,
         uint32_t height,
         uint32_t levelCount,
-        uint8_t canBeRenderTarget
+        REFRESH_TextureUsageFlags usageFlags
     );
 
     REFRESH_Texture* (*CreateTexture3D)(
@@ -249,7 +249,7 @@ struct REFRESH_Device
         uint32_t height,
         uint32_t depth,
         uint32_t levelCount,
-        uint8_t canBeRenderTarget
+        REFRESH_TextureUsageFlags usageFlags
     );
 
     REFRESH_Texture* (*CreateTextureCube)(
@@ -257,7 +257,7 @@ struct REFRESH_Device
         REFRESH_SurfaceFormat format,
         uint32_t size,
         uint32_t levelCount,
-        uint8_t canBeRenderTarget
+        REFRESH_TextureUsageFlags usageFlags
     );
 
     REFRESH_ColorTarget* (*CreateColorTarget)(
@@ -493,13 +493,6 @@ struct REFRESH_Device
         REFRESH_IndexElementSize indexElementSize
     );
 
-    void (*TextureLayoutTransition)(
-        REFRESH_Renderer *driverData,
-        REFRESH_TextureLayout layout,
-        REFRESH_Texture **pTextures,
-        uint32_t textureCount
-    );
-
     void(*QueuePresent)(
         REFRESH_Renderer *driverData,
         REFRESH_TextureSlice *textureSlice,
@@ -562,7 +555,6 @@ struct REFRESH_Device
     ASSIGN_DRIVER_FUNC(BindGraphicsPipeline, name) \
     ASSIGN_DRIVER_FUNC(BindVertexBuffers, name) \
     ASSIGN_DRIVER_FUNC(BindIndexBuffer, name) \
-    ASSIGN_DRIVER_FUNC(TextureLayoutTransition, name) \
     ASSIGN_DRIVER_FUNC(QueuePresent, name) \
     ASSIGN_DRIVER_FUNC(Submit, name)
 

src/Refresh_Driver_Vulkan.c

@@ -699,6 +699,7 @@ typedef struct VulkanTexture
 	uint32_t levelCount;
 	VkFormat format;
 	VulkanResourceAccessType resourceAccessType;
+	REFRESH_TextureUsageFlags usageFlags;
 } VulkanTexture;
 
 typedef struct VulkanDepthStencilTexture
@@ -1009,6 +1010,7 @@ typedef struct VulkanRenderer
 	uint32_t numActiveCommands;
 
 	VulkanGraphicsPipeline *currentGraphicsPipeline;
+	VulkanFramebuffer *currentFramebuffer;
 
 	SamplerDescriptorSetLayoutHashTable samplerDescriptorSetLayoutHashTable;
 	PipelineLayoutHashTable pipelineLayoutHashTable;
@@ -3743,7 +3745,8 @@ static uint8_t VULKAN_INTERNAL_CreateTexture(
 	VkImageAspectFlags aspectMask,
 	VkImageTiling tiling,
 	VkImageType imageType,
-	VkImageUsageFlags usage,
+	VkImageUsageFlags imageUsageFlags,
+	REFRESH_TextureUsageFlags textureUsageFlags,
 	VulkanTexture *texture
 ) {
 	VkResult vulkanResult;
@@ -3755,6 +3758,13 @@ static uint8_t VULKAN_INTERNAL_CreateTexture(
 	uint8_t layerCount = isCube ? 6 : 1;
 	VkComponentMapping swizzle = IDENTITY_SWIZZLE;
 
+	if ((textureUsageFlags & REFRESH_TEXTUREUSAGE_VERTEX_SAMPLER_BIT) &&
+		(textureUsageFlags & REFRESH_TEXTUREUSAGE_FRAGMENT_SAMPLER_BIT))
+	{
+		REFRESH_LogError("Cannot use a texture for both vertex and fragment sampling.");
+		return 0;
+	}
+
 	if (isCube)
 	{
 		imageCreateFlags |= VK_IMAGE_CREATE_CUBE_COMPATIBLE_BIT;
@@ -3776,7 +3786,7 @@ static uint8_t VULKAN_INTERNAL_CreateTexture(
 	imageCreateInfo.arrayLayers = layerCount;
 	imageCreateInfo.samples = samples;
 	imageCreateInfo.tiling = tiling;
-	imageCreateInfo.usage = usage;
+	imageCreateInfo.usage = imageUsageFlags;
 	// FIXME: would this interfere with pixel data sharing?
 	imageCreateInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
 	imageCreateInfo.queueFamilyIndexCount = 0;
@@ -3876,6 +3886,7 @@ static uint8_t VULKAN_INTERNAL_CreateTexture(
 	texture->levelCount = levelCount;
 	texture->layerCount = layerCount;
 	texture->resourceAccessType = RESOURCE_ACCESS_NONE;
+	texture->usageFlags = textureUsageFlags;
 
 	return 1;
 }
@@ -4009,19 +4020,19 @@ static REFRESH_Texture* VULKAN_CreateTexture2D(
 	uint32_t width,
 	uint32_t height,
 	uint32_t levelCount,
-	uint8_t canBeRenderTarget
+	REFRESH_TextureUsageFlags usageFlags
 ) {
 	VulkanRenderer *renderer = (VulkanRenderer*) driverData;
 	VulkanTexture *result;
-	uint32_t usageFlags = (
+	VkImageUsageFlags imageUsageFlags = (
 		VK_IMAGE_USAGE_SAMPLED_BIT |
 		VK_IMAGE_USAGE_TRANSFER_DST_BIT |
 		VK_IMAGE_USAGE_TRANSFER_SRC_BIT
 	);
 
-	if (canBeRenderTarget)
+	if (usageFlags & REFRESH_TEXTUREUSAGE_COLOR_TARGET_BIT)
 	{
-		usageFlags |= VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
+		imageUsageFlags |= VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
 	}
 
 	result = (VulkanTexture*) SDL_malloc(sizeof(VulkanTexture));
@@ -4038,6 +4049,7 @@ static REFRESH_Texture* VULKAN_CreateTexture2D(
 		VK_IMAGE_ASPECT_COLOR_BIT,
 		VK_IMAGE_TILING_OPTIMAL,
 		VK_IMAGE_TYPE_2D,
+		imageUsageFlags,
 		usageFlags,
 		result
 	);
@@ -4052,19 +4064,19 @@ static REFRESH_Texture* VULKAN_CreateTexture3D(
 	uint32_t height,
 	uint32_t depth,
 	uint32_t levelCount,
-	uint8_t canBeRenderTarget
+	REFRESH_TextureUsageFlags usageFlags
 ) {
 	VulkanRenderer *renderer = (VulkanRenderer*) driverData;
 	VulkanTexture *result;
-	uint32_t usageFlags = (
+	VkImageUsageFlags imageUsageFlags = (
 		VK_IMAGE_USAGE_SAMPLED_BIT |
 		VK_IMAGE_USAGE_TRANSFER_DST_BIT |
 		VK_IMAGE_USAGE_TRANSFER_SRC_BIT
 	);
 
-	if (canBeRenderTarget)
+	if (usageFlags & REFRESH_TEXTUREUSAGE_COLOR_TARGET_BIT)
 	{
-		usageFlags |= VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
+		imageUsageFlags |= VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
 	}
 
 	result = (VulkanTexture*) SDL_malloc(sizeof(VulkanTexture));
@@ -4081,6 +4093,7 @@ static REFRESH_Texture* VULKAN_CreateTexture3D(
 		VK_IMAGE_ASPECT_COLOR_BIT,
 		VK_IMAGE_TILING_OPTIMAL,
 		VK_IMAGE_TYPE_3D,
+		imageUsageFlags,
 		usageFlags,
 		result
 	);
@@ -4093,19 +4106,19 @@ static REFRESH_Texture* VULKAN_CreateTextureCube(
 	REFRESH_SurfaceFormat format,
 	uint32_t size,
 	uint32_t levelCount,
-	uint8_t canBeRenderTarget
+	REFRESH_TextureUsageFlags usageFlags
 ) {
 	VulkanRenderer *renderer = (VulkanRenderer*) driverData;
 	VulkanTexture *result;
-	uint32_t usageFlags = (
+	VkImageUsageFlags imageUsageFlags = (
 		VK_IMAGE_USAGE_SAMPLED_BIT |
 		VK_IMAGE_USAGE_TRANSFER_DST_BIT |
 		VK_IMAGE_USAGE_TRANSFER_SRC_BIT
 	);
 
-	if (canBeRenderTarget)
+	if (usageFlags & REFRESH_TEXTUREUSAGE_COLOR_TARGET_BIT)
 	{
-		usageFlags |= VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
+		imageUsageFlags |= VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
 	}
 
 	result = (VulkanTexture*) SDL_malloc(sizeof(VulkanTexture));
@@ -4122,6 +4135,7 @@ static REFRESH_Texture* VULKAN_CreateTextureCube(
 		VK_IMAGE_ASPECT_COLOR_BIT,
 		VK_IMAGE_TILING_OPTIMAL,
 		VK_IMAGE_TYPE_2D,
+		imageUsageFlags,
 		usageFlags,
 		result
 	);
@@ -4164,6 +4178,7 @@ static REFRESH_ColorTarget* VULKAN_CreateColorTarget(
 			VK_IMAGE_TILING_OPTIMAL,
 			VK_IMAGE_TYPE_2D,
 			VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT,
+			REFRESH_TEXTUREUSAGE_COLOR_TARGET_BIT,
 			colorTarget->multisampleTexture
 		);
 		colorTarget->multisampleCount = multisampleCount;
@@ -4402,6 +4417,37 @@ static void VULKAN_SetTextureData2D(
 		1,
 		&imageCopy
 	));
+
+	if (vulkanTexture->usageFlags & REFRESH_TEXTUREUSAGE_VERTEX_SAMPLER_BIT)
+	{
+		VULKAN_INTERNAL_ImageMemoryBarrier(
+			renderer,
+			RESOURCE_ACCESS_VERTEX_SHADER_READ_SAMPLED_IMAGE,
+			VK_IMAGE_ASPECT_COLOR_BIT,
+			0,
+			vulkanTexture->layerCount,
+			0,
+			vulkanTexture->levelCount,
+			0,
+			vulkanTexture->image,
+			&vulkanTexture->resourceAccessType
+		);
+	}
+	else if (vulkanTexture->usageFlags & REFRESH_TEXTUREUSAGE_FRAGMENT_SAMPLER_BIT)
+	{
+		VULKAN_INTERNAL_ImageMemoryBarrier(
+			renderer,
+			RESOURCE_ACCESS_FRAGMENT_SHADER_READ_SAMPLED_IMAGE,
+			VK_IMAGE_ASPECT_COLOR_BIT,
+			0,
+			vulkanTexture->layerCount,
+			0,
+			vulkanTexture->levelCount,
+			0,
+			vulkanTexture->image,
+			&vulkanTexture->resourceAccessType
+		);
+	}
 }
 
 static void VULKAN_SetTextureData3D(
@@ -4482,6 +4528,37 @@ static void VULKAN_SetTextureData3D(
 		1,
 		&imageCopy
 	));
+
+	if (vulkanTexture->usageFlags & REFRESH_TEXTUREUSAGE_VERTEX_SAMPLER_BIT)
+	{
+		VULKAN_INTERNAL_ImageMemoryBarrier(
+			renderer,
+			RESOURCE_ACCESS_VERTEX_SHADER_READ_SAMPLED_IMAGE,
+			VK_IMAGE_ASPECT_COLOR_BIT,
+			0,
+			vulkanTexture->layerCount,
+			0,
+			vulkanTexture->levelCount,
+			0,
+			vulkanTexture->image,
+			&vulkanTexture->resourceAccessType
+		);
+	}
+	else if (vulkanTexture->usageFlags & REFRESH_TEXTUREUSAGE_FRAGMENT_SAMPLER_BIT)
+	{
+		VULKAN_INTERNAL_ImageMemoryBarrier(
+			renderer,
+			RESOURCE_ACCESS_FRAGMENT_SHADER_READ_SAMPLED_IMAGE,
+			VK_IMAGE_ASPECT_COLOR_BIT,
+			0,
+			vulkanTexture->layerCount,
+			0,
+			vulkanTexture->levelCount,
+			0,
+			vulkanTexture->image,
+			&vulkanTexture->resourceAccessType
+		);
+	}
 }
 
 static void VULKAN_SetTextureDataCube(
@@ -4561,6 +4638,37 @@ static void VULKAN_SetTextureDataCube(
 		1,
 		&imageCopy
 	));
+
+	if (vulkanTexture->usageFlags & REFRESH_TEXTUREUSAGE_VERTEX_SAMPLER_BIT)
+	{
+		VULKAN_INTERNAL_ImageMemoryBarrier(
+			renderer,
+			RESOURCE_ACCESS_VERTEX_SHADER_READ_SAMPLED_IMAGE,
+			VK_IMAGE_ASPECT_COLOR_BIT,
+			0,
+			vulkanTexture->layerCount,
+			0,
+			vulkanTexture->levelCount,
+			0,
+			vulkanTexture->image,
+			&vulkanTexture->resourceAccessType
+		);
+	}
+	else if (vulkanTexture->usageFlags & REFRESH_TEXTUREUSAGE_FRAGMENT_SAMPLER_BIT)
+	{
+		VULKAN_INTERNAL_ImageMemoryBarrier(
+			renderer,
+			RESOURCE_ACCESS_FRAGMENT_SHADER_READ_SAMPLED_IMAGE,
+			VK_IMAGE_ASPECT_COLOR_BIT,
+			0,
+			vulkanTexture->layerCount,
+			0,
+			vulkanTexture->levelCount,
+			0,
+			vulkanTexture->image,
+			&vulkanTexture->resourceAccessType
+		);
+	}
 }
 
 static void VULKAN_SetTextureDataYUV(
@@ -4729,6 +4837,37 @@ static void VULKAN_SetTextureDataYUV(
 		1,
 		&imageCopy
 	));
+
+	if (tex->usageFlags & REFRESH_TEXTUREUSAGE_VERTEX_SAMPLER_BIT)
+	{
+		VULKAN_INTERNAL_ImageMemoryBarrier(
+			renderer,
+			RESOURCE_ACCESS_VERTEX_SHADER_READ_SAMPLED_IMAGE,
+			VK_IMAGE_ASPECT_COLOR_BIT,
+			0,
+			tex->layerCount,
+			0,
+			tex->levelCount,
+			0,
+			tex->image,
+			&tex->resourceAccessType
+		);
+	}
+	else if (tex->usageFlags & REFRESH_TEXTUREUSAGE_FRAGMENT_SAMPLER_BIT)
+	{
+		VULKAN_INTERNAL_ImageMemoryBarrier(
+			renderer,
+			RESOURCE_ACCESS_FRAGMENT_SHADER_READ_SAMPLED_IMAGE,
+			VK_IMAGE_ASPECT_COLOR_BIT,
+			0,
+			tex->layerCount,
+			0,
+			tex->levelCount,
+			0,
+			tex->image,
+			&tex->resourceAccessType
+		);
+	}
 }
 
 static void VULKAN_INTERNAL_SetBufferData(
@@ -5312,19 +5451,59 @@ static void VULKAN_BeginRenderPass(
 		VK_SUBPASS_CONTENTS_INLINE
 	));
 
+	renderer->currentFramebuffer = vulkanFramebuffer;
+
 	SDL_stack_free(clearValues);
 }
 
 static void VULKAN_EndRenderPass(
 	REFRESH_Renderer *driverData
 ) {
+	uint32_t i;
 	VulkanRenderer *renderer = (VulkanRenderer*) driverData;
+	VulkanTexture *currentTexture;
 
 	RECORD_CMD(renderer->vkCmdEndRenderPass(
 		renderer->currentCommandBuffer
 	));
 
+	for (i = 0; i < renderer->currentFramebuffer->colorTargetCount; i += 1)
+	{
+		currentTexture = renderer->currentFramebuffer->colorTargets[i]->texture;
+		if (currentTexture->usageFlags & REFRESH_TEXTUREUSAGE_VERTEX_SAMPLER_BIT)
+		{
+			VULKAN_INTERNAL_ImageMemoryBarrier(
+				renderer,
+				RESOURCE_ACCESS_VERTEX_SHADER_READ_SAMPLED_IMAGE,
+				VK_IMAGE_ASPECT_COLOR_BIT,
+				0,
+				currentTexture->layerCount,
+				0,
+				currentTexture->levelCount,
+				0,
+				currentTexture->image,
+				&currentTexture->resourceAccessType
+			);
+		}
+		else if (currentTexture->usageFlags & REFRESH_TEXTUREUSAGE_FRAGMENT_SAMPLER_BIT)
+		{
+			VULKAN_INTERNAL_ImageMemoryBarrier(
+				renderer,
+				RESOURCE_ACCESS_FRAGMENT_SHADER_READ_SAMPLED_IMAGE,
+				VK_IMAGE_ASPECT_COLOR_BIT,
+				0,
+				currentTexture->layerCount,
+				0,
+				currentTexture->levelCount,
+				0,
+				currentTexture->image,
+				&currentTexture->resourceAccessType
+			);
+		}
+	}
+
 	renderer->currentGraphicsPipeline = NULL;
+	renderer->currentFramebuffer = NULL;
 }
 
 static void VULKAN_BindGraphicsPipeline(
@@ -5428,34 +5607,6 @@ static void VULKAN_BindIndexBuffer(
 	));
 }
 
-static void VULKAN_TextureLayoutTransition(
-	REFRESH_Renderer *driverData,
-	REFRESH_TextureLayout layout,
-	REFRESH_Texture **pTextures,
-	uint32_t textureCount
-) {
-	uint32_t i;
-	VulkanTexture* currentTexture;
-	VulkanRenderer* renderer = (VulkanRenderer*) driverData;
-
-	for (i = 0; i < textureCount; i += 1)
-	{
-		currentTexture = (VulkanTexture*) pTextures[i];
-		VULKAN_INTERNAL_ImageMemoryBarrier(
-			renderer,
-			RefreshToVK_ImageLayout[layout],
-			VK_IMAGE_ASPECT_COLOR_BIT,
-			0,
-			currentTexture->layerCount,
-			0,
-			currentTexture->levelCount,
-			0,
-			currentTexture->image,
-			&currentTexture->resourceAccessType
-		);
-	}
-}
-
 static void VULKAN_QueuePresent(
 	REFRESH_Renderer* driverData,
 	REFRESH_TextureSlice* textureSlice,
@@ -7000,6 +7151,10 @@ static REFRESH_Device* VULKAN_CreateDevice(
 	renderer->descriptorPools = NULL;
 	renderer->descriptorPoolCount = 0;
 
+	/* State tracking */
+	renderer->currentGraphicsPipeline = NULL;
+	renderer->currentFramebuffer = NULL;
+
     return result;
 }