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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 SkSurfaceCharacterization_DEFINED
#define SkSurfaceCharacterization_DEFINED
#include "GrTypes.h"
#include "SkColorSpace.h"
#include "SkRefCnt.h"
#include "SkSurfaceProps.h"
class SkColorSpace;
#if SK_SUPPORT_GPU
#include "GrContext.h"
/** \class SkSurfaceCharacterization
A surface characterization contains all the information Ganesh requires to makes its internal
rendering decisions. When passed into a SkDeferredDisplayListRecorder it will copy the
data and pass it on to the SkDeferredDisplayList if/when it is created. Note that both of
those objects (the Recorder and the DisplayList) will take a ref on the
GrContextThreadSafeProxy and SkColorSpace objects.
*/
class SkSurfaceCharacterization {
public:
enum class Textureable : bool { kNo = false, kYes = true };
enum class MipMapped : bool { kNo = false, kYes = true };
SkSurfaceCharacterization()
: fCacheMaxResourceBytes(0)
, fOrigin(kBottomLeft_GrSurfaceOrigin)
, fWidth(0)
, fHeight(0)
, fConfig(kUnknown_GrPixelConfig)
, fFSAAType(GrFSAAType::kNone)
, fStencilCnt(0)
, fIsTextureable(Textureable::kYes)
, fIsMipMapped(MipMapped::kYes)
, fSurfaceProps(0, kUnknown_SkPixelGeometry) {
}
SkSurfaceCharacterization(SkSurfaceCharacterization&&) = default;
SkSurfaceCharacterization& operator=(SkSurfaceCharacterization&&) = default;
SkSurfaceCharacterization(const SkSurfaceCharacterization&) = default;
SkSurfaceCharacterization& operator=(const SkSurfaceCharacterization& other) = default;
SkSurfaceCharacterization createResized(int width, int height) const {
const GrCaps* caps = fContextInfo->caps();
if (!caps) {
return SkSurfaceCharacterization();
}
if (width <= 0 || height <= 0 ||
width > caps->maxRenderTargetSize() || height > caps->maxRenderTargetSize()) {
return SkSurfaceCharacterization();
}
return SkSurfaceCharacterization(fContextInfo,
fCacheMaxResourceBytes,
fOrigin, width, height, fConfig, fFSAAType, fStencilCnt,
fIsTextureable, fIsMipMapped, fColorSpace,
fSurfaceProps);
}
GrContextThreadSafeProxy* contextInfo() const { return fContextInfo.get(); }
sk_sp<GrContextThreadSafeProxy> refContextInfo() const { return fContextInfo; }
size_t cacheMaxResourceBytes() const { return fCacheMaxResourceBytes; }
bool isValid() const { return kUnknown_GrPixelConfig != fConfig; }
GrSurfaceOrigin origin() const { return fOrigin; }
int width() const { return fWidth; }
int height() const { return fHeight; }
GrPixelConfig config() const { return fConfig; }
GrFSAAType fsaaType() const { return fFSAAType; }
int stencilCount() const { return fStencilCnt; }
bool isTextureable() const { return Textureable::kYes == fIsTextureable; }
bool isMipMapped() const { return MipMapped::kYes == fIsMipMapped; }
SkColorSpace* colorSpace() const { return fColorSpace.get(); }
sk_sp<SkColorSpace> refColorSpace() const { return fColorSpace; }
const SkSurfaceProps& surfaceProps()const { return fSurfaceProps; }
private:
friend class SkSurface_Gpu; // for 'set'
friend class GrContextThreadSafeProxy; // for private ctor
SkSurfaceCharacterization(sk_sp<GrContextThreadSafeProxy> contextInfo,
size_t cacheMaxResourceBytes,
GrSurfaceOrigin origin, int width, int height,
GrPixelConfig config, GrFSAAType FSAAType, int stencilCnt,
Textureable isTextureable, MipMapped isMipMapped,
sk_sp<SkColorSpace> colorSpace,
const SkSurfaceProps& surfaceProps)
: fContextInfo(std::move(contextInfo))
, fCacheMaxResourceBytes(cacheMaxResourceBytes)
, fOrigin(origin)
, fWidth(width)
, fHeight(height)
, fConfig(config)
, fFSAAType(FSAAType)
, fStencilCnt(stencilCnt)
, fIsTextureable(isTextureable)
, fIsMipMapped(isMipMapped)
, fColorSpace(std::move(colorSpace))
, fSurfaceProps(surfaceProps) {
}
void set(sk_sp<GrContextThreadSafeProxy> contextInfo,
size_t cacheMaxResourceBytes,
GrSurfaceOrigin origin,
int width, int height,
GrPixelConfig config,
GrFSAAType fsaaType,
int stencilCnt,
Textureable isTextureable,
MipMapped isMipMapped,
sk_sp<SkColorSpace> colorSpace,
const SkSurfaceProps& surfaceProps) {
SkASSERT(MipMapped::kNo == isMipMapped || Textureable::kYes == isTextureable);
fContextInfo = contextInfo;
fCacheMaxResourceBytes = cacheMaxResourceBytes;
fOrigin = origin;
fWidth = width;
fHeight = height;
fConfig = config;
fFSAAType = fsaaType;
fStencilCnt = stencilCnt;
fIsTextureable = isTextureable;
fIsMipMapped = isMipMapped;
fColorSpace = std::move(colorSpace);
fSurfaceProps = surfaceProps;
}
sk_sp<GrContextThreadSafeProxy> fContextInfo;
size_t fCacheMaxResourceBytes;
GrSurfaceOrigin fOrigin;
int fWidth;
int fHeight;
GrPixelConfig fConfig;
GrFSAAType fFSAAType;
int fStencilCnt;
Textureable fIsTextureable;
MipMapped fIsMipMapped;
sk_sp<SkColorSpace> fColorSpace;
SkSurfaceProps fSurfaceProps;
};
#else// !SK_SUPPORT_GPU
class SkSurfaceCharacterization {
public:
SkSurfaceCharacterization() : fSurfaceProps(0, kUnknown_SkPixelGeometry) { }
SkSurfaceCharacterization createResized(int width, int height) const {
return *this;
}
size_t cacheMaxResourceBytes() const { return 0; }
bool isValid() const { return false; }
int width() const { return 0; }
int height() const { return 0; }
int stencilCount() const { return 0; }
bool isTextureable() const { return false; }
bool isMipMapped() const { return false; }
SkColorSpace* colorSpace() const { return nullptr; }
sk_sp<SkColorSpace> refColorSpace() const { return nullptr; }
const SkSurfaceProps& surfaceProps()const { return fSurfaceProps; }
private:
SkSurfaceProps fSurfaceProps;
};
#endif
#endif
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