skia2/include/gpu/GrTexture.h
cdalton 9c3f14327a Add support for vertex and geometry shader textures
Adds a visibility bitfield to GrTextureAccess that controls in which
shaders the texture should be accessible. Also adds caps and
validation to ensure we don't exceed texture limits.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1782583002

Review URL: https://codereview.chromium.org/1782583002
2016-03-11 10:07:37 -08:00

73 lines
1.7 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 "SkPoint.h"
#include "SkRefCnt.h"
class GrTextureParams;
class GrTexturePriv;
class GrTexture : virtual public GrSurface {
public:
GrTexture* asTexture() override { return this; }
const GrTexture* asTexture() const override { return this; }
GrSLType samplerType() const { return fSamplerType; }
/**
* 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*, LifeCycle, const GrSurfaceDesc&, GrSLType, bool wasMipMapDataProvided);
void validateDesc() const;
private:
size_t onGpuMemorySize() const override;
void dirtyMipMaps(bool mipMapsDirty);
enum MipMapsStatus {
kNotAllocated_MipMapsStatus,
kAllocated_MipMapsStatus,
kValid_MipMapsStatus
};
GrSLType fSamplerType;
MipMapsStatus fMipMapsStatus;
int fMaxMipMapLevel;
friend class GrTexturePriv;
typedef GrSurface INHERITED;
};
#endif