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/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef GrVkTypes_DEFINED
#define GrVkTypes_DEFINED
#include "GrTypes.h"
#include "vk/GrVkDefines.h"
/**
* KHR_debug
*/
/*typedef void (GR_GL_FUNCTION_TYPE* GrVkDEBUGPROC)(GrVkenum source,
GrVkenum type,
GrVkuint id,
GrVkenum severity,
GrVksizei length,
const GrVkchar* message,
const void* userParam);*/
///////////////////////////////////////////////////////////////////////////////
/**
* Types for interacting with Vulkan resources created externally to Skia. GrBackendObjects for
* Vulkan textures are really const GrVkImageInfo*
*/
struct GrVkAlloc {
VkDeviceMemory fMemory = VK_NULL_HANDLE; // can be VK_NULL_HANDLE iff is an RT and is borrowed
VkDeviceSize fOffset = 0;
VkDeviceSize fSize = 0; // this can be indeterminate iff Tex uses borrow semantics
uint32_t fFlags= 0;
enum Flag {
kNoncoherent_Flag = 0x1, // memory must be flushed to device after mapping
};
private:
friend class GrVkHeap; // For access to usesSystemHeap
bool fUsesSystemHeap = false;
};
struct GrVkImageInfo {
/**
* If the image's format is sRGB (GrVkFormatIsSRGB returns true), then the image must have
* been created with VkImageCreateFlags containing VK_IMAGE_CREATE_MUTABLE_FORMAT_BIT.
*/
VkImage fImage;
GrVkAlloc fAlloc;
VkImageTiling fImageTiling;
VkImageLayout fImageLayout;
VkFormat fFormat;
uint32_t fLevelCount;
// This gives a way for a client to update the layout of the Image if they change the layout
// while we're still holding onto the wrapped texture. They will first need to get a handle
// to our internal GrVkImageInfo by calling getTextureHandle on a GrVkTexture.
void updateImageLayout(VkImageLayout layout) { fImageLayout = layout; }
};
GR_STATIC_ASSERT(sizeof(GrBackendObject) >= sizeof(const GrVkImageInfo*));
#endif
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