914a36b248
Creates a static function on SkImage which converts the SkImage to a GrBackendTexture. The texture is unowned by Skia, and must be deleted by the caller. Allows for a no-copy / no-conversion fast path if the provided image is unowned (unique()) and texture backed. Change-Id: I8a48f9cc39de792725cd72057d98cd1c4594daab Reviewed-on: https://skia-review.googlesource.com/52440 Reviewed-by: Brian Salomon <bsalomon@google.com> Commit-Queue: Eric Karl <ericrk@chromium.org>
89 lines
2.6 KiB
C++
89 lines
2.6 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 "GrBackendSurface.h"
|
|
#include "GrSamplerState.h"
|
|
#include "GrSurface.h"
|
|
#include "SkImage.h"
|
|
#include "SkPoint.h"
|
|
#include "SkRefCnt.h"
|
|
#include "../private/GrTypesPriv.h"
|
|
|
|
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;
|
|
|
|
/**
|
|
* This function steals the backend texture from a uniquely owned GrTexture with no pending
|
|
* IO, passing it out to the caller. The GrTexture is deleted in the process.
|
|
*
|
|
* Note that if the GrTexture is not uniquely owned (no other refs), or has pending IO, this
|
|
* function will fail.
|
|
*/
|
|
static bool StealBackendTexture(sk_sp<GrTexture>&&,
|
|
GrBackendTexture*,
|
|
SkImage::BackendTextureReleaseProc*);
|
|
|
|
#ifdef SK_DEBUG
|
|
void validate() const {
|
|
this->INHERITED::validate();
|
|
}
|
|
#endif
|
|
|
|
// These match the definitions in SkImage, for whence they came
|
|
typedef void* ReleaseCtx;
|
|
typedef void (*ReleaseProc)(ReleaseCtx);
|
|
|
|
virtual void setRelease(ReleaseProc proc, ReleaseCtx ctx) = 0;
|
|
|
|
/** 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,
|
|
GrSamplerState::Filter highestFilterMode, GrMipMapsStatus);
|
|
|
|
virtual bool onStealBackendTexture(GrBackendTexture*, SkImage::BackendTextureReleaseProc*) = 0;
|
|
|
|
private:
|
|
void computeScratchKey(GrScratchKey*) const override;
|
|
size_t onGpuMemorySize() const override;
|
|
void markMipMapsDirty();
|
|
void markMipMapsClean();
|
|
|
|
GrSLType fSamplerType;
|
|
GrSamplerState::Filter fHighestFilterMode;
|
|
GrMipMapsStatus fMipMapsStatus;
|
|
int fMaxMipMapLevel;
|
|
SkDestinationSurfaceColorMode fMipColorMode;
|
|
friend class GrTexturePriv;
|
|
|
|
typedef GrSurface INHERITED;
|
|
};
|
|
|
|
#endif
|