2c2bc11aea
GrExternalTextureData is an API for exporting the backend-specific information about a texture in a type-safe way, and without pointing into the GrTexture. The new detachBackendTexture API lets us release ownership of a texture to the client. SkCrossContextImageData is the public API that lets clients upload textures on one thread/GrContext, then safely transfer ownership to another thread and GrContext for rendering. Only GL is implemented/supported right now. Vulkan support requires that we add thread-safe memory pools, or otherwise transfer the actual memory block containing the texture to the new context. Re-land of https://skia-review.googlesource.com/c/8529/ BUG=skia: Change-Id: I48ebd57d1ea0cfd3a1db10c475f2903afb821966 Reviewed-on: https://skia-review.googlesource.com/8960 Reviewed-by: Brian Salomon <bsalomon@google.com> Commit-Queue: Brian Osman <brianosman@google.com>
77 lines
2.1 KiB
C++
77 lines
2.1 KiB
C++
|
|
/*
|
|
* Copyright 2011 Google Inc.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*/
|
|
|
|
#ifndef GrTexture_DEFINED
|
|
#define GrTexture_DEFINED
|
|
|
|
#include "GrSurface.h"
|
|
#include "GrSamplerParams.h"
|
|
#include "SkPoint.h"
|
|
#include "SkRefCnt.h"
|
|
|
|
class GrExternalTextureData;
|
|
class GrTexturePriv;
|
|
|
|
class GrTexture : virtual public GrSurface {
|
|
public:
|
|
GrTexture* asTexture() override { return this; }
|
|
const GrTexture* asTexture() const override { return this; }
|
|
|
|
/**
|
|
* Return the native ID or handle to the texture, depending on the
|
|
* platform. e.g. on OpenGL, return the texture ID.
|
|
*/
|
|
virtual GrBackendObject getTextureHandle() const = 0;
|
|
|
|
/**
|
|
* This function indicates that the texture parameters (wrap mode, filtering, ...) have been
|
|
* changed externally to Skia.
|
|
*/
|
|
virtual void textureParamsModified() = 0;
|
|
|
|
#ifdef SK_DEBUG
|
|
void validate() const {
|
|
this->INHERITED::validate();
|
|
this->validateDesc();
|
|
}
|
|
#endif
|
|
|
|
/** Access methods that are only to be used within Skia code. */
|
|
inline GrTexturePriv texturePriv();
|
|
inline const GrTexturePriv texturePriv() const;
|
|
|
|
protected:
|
|
GrTexture(GrGpu*, const GrSurfaceDesc&, GrSLType samplerType,
|
|
GrSamplerParams::FilterMode highestFilterMode, bool wasMipMapDataProvided);
|
|
|
|
void validateDesc() const;
|
|
virtual std::unique_ptr<GrExternalTextureData> detachBackendTexture() = 0;
|
|
|
|
private:
|
|
void computeScratchKey(GrScratchKey*) const override;
|
|
size_t onGpuMemorySize() const override;
|
|
void dirtyMipMaps(bool mipMapsDirty);
|
|
|
|
enum MipMapsStatus {
|
|
kNotAllocated_MipMapsStatus,
|
|
kAllocated_MipMapsStatus,
|
|
kValid_MipMapsStatus
|
|
};
|
|
|
|
GrSLType fSamplerType;
|
|
GrSamplerParams::FilterMode fHighestFilterMode;
|
|
MipMapsStatus fMipMapsStatus;
|
|
int fMaxMipMapLevel;
|
|
SkDestinationSurfaceColorMode fMipColorMode;
|
|
friend class GrTexturePriv;
|
|
|
|
typedef GrSurface INHERITED;
|
|
};
|
|
|
|
#endif
|