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/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef GrBackendSurface_DEFINED
#define GrBackendSurface_DEFINED
#include "GrTypes.h"
#include "gl/GrGLTypes.h"
#include "vk/GrVkTypes.h"
class GrBackendTexture {
public:
// The passed in GrVkImageInfo must live until the GrBackendTexture is no longer used in
// creation of SkImages or SkSurfaces.
GrBackendTexture(int width,
int height,
const GrVkImageInfo* vkInfo);
// The passed in GrGLTextureInfo must live until the GrBackendTexture is no longer used in
// creation of SkImages or SkSurfaces.
GrBackendTexture(int width,
int height,
GrPixelConfig config,
const GrGLTextureInfo* glInfo);
int width() const { return fWidth; }
int height() const { return fHeight; }
GrPixelConfig config() const { return fConfig; }
GrBackend backend() const {return fBackend; }
// If the backend API is Vulkan, this returns a pointer to the GrVkImageInfo struct. Otherwise
// it returns nullptr.
const GrVkImageInfo* getVkImageInfo() const;
// If the backend API is GL, this returns a pointer to the GrGLTextureInfo struct. Otherwise
// it returns nullptr.
const GrGLTextureInfo* getGLTextureInfo() const;
private:
// Temporary constructor which can be used to convert from a GrBackendTextureDesc.
GrBackendTexture(const GrBackendTextureDesc& desc, GrBackend backend);
// Friending for access to above constructor taking a GrBackendTextureDesc
friend class SkImage;
friend class SkSurface;
int fWidth; //<! width in pixels
int fHeight; //<! height in pixels
GrPixelConfig fConfig;
GrBackend fBackend;
union {
const GrVkImageInfo* fVkInfo;
const GrGLTextureInfo* fGLInfo;
GrBackendObject fHandle;
};
};
class GrBackendRenderTarget {
public:
GrBackendRenderTarget(int width,
int height,
int sampleCnt,
int stencilBits,
const GrVkImageInfo& vkInfo);
GrBackendRenderTarget(int width,
int height,
int sampleCnt,
int stencilBits,
GrPixelConfig config,
const GrGLFramebufferInfo& glInfo);
int width() const { return fWidth; }
int height() const { return fHeight; }
int sampleCnt() const { return fSampleCnt; }
int stencilBits() const { return fStencilBits; }
GrPixelConfig config() const { return fConfig; }
GrBackend backend() const {return fBackend; }
// If the backend API is Vulkan, this returns a pointer to the GrVkImageInfo struct. Otherwise
// it returns nullptr
const GrVkImageInfo* getVkImageInfo() const;
// If the backend API is GL, this returns a pointer to the GrGLFramebufferInfo struct. Otherwise
// it returns nullptr.
const GrGLFramebufferInfo* getGLFramebufferInfo() const;
private:
// Temporary constructor which can be used to convert from a GrBackendRenderTargetDesc.
GrBackendRenderTarget(const GrBackendRenderTargetDesc& desc, GrBackend backend);
// Friending for access to above constructor taking a GrBackendTextureDesc
friend class SkSurface;
int fWidth; //<! width in pixels
int fHeight; //<! height in pixels
int fSampleCnt;
int fStencilBits;
GrPixelConfig fConfig;
GrBackend fBackend;
union {
GrVkImageInfo fVkInfo;
GrGLFramebufferInfo fGLInfo;
};
};
#endif
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