skia2/include/gpu/SkGr.h
2015-09-29 18:27:59 -07:00

144 lines
5.3 KiB
C++

/*
* Copyright 2010 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkGr_DEFINED
#define SkGr_DEFINED
#include <stddef.h>
// Gr headers
#include "GrContext.h"
#include "GrTextureAccess.h"
#include "GrTypes.h"
// skia headers
#include "SkBitmap.h"
#include "SkPath.h"
#include "SkPoint.h"
#include "SkRegion.h"
#include "SkClipStack.h"
////////////////////////////////////////////////////////////////////////////////
// Sk to Gr Type conversions
GR_STATIC_ASSERT((int)kZero_GrBlendCoeff == (int)SkXfermode::kZero_Coeff);
GR_STATIC_ASSERT((int)kOne_GrBlendCoeff == (int)SkXfermode::kOne_Coeff);
GR_STATIC_ASSERT((int)kSC_GrBlendCoeff == (int)SkXfermode::kSC_Coeff);
GR_STATIC_ASSERT((int)kISC_GrBlendCoeff == (int)SkXfermode::kISC_Coeff);
GR_STATIC_ASSERT((int)kDC_GrBlendCoeff == (int)SkXfermode::kDC_Coeff);
GR_STATIC_ASSERT((int)kIDC_GrBlendCoeff == (int)SkXfermode::kIDC_Coeff);
GR_STATIC_ASSERT((int)kSA_GrBlendCoeff == (int)SkXfermode::kSA_Coeff);
GR_STATIC_ASSERT((int)kISA_GrBlendCoeff == (int)SkXfermode::kISA_Coeff);
GR_STATIC_ASSERT((int)kDA_GrBlendCoeff == (int)SkXfermode::kDA_Coeff);
GR_STATIC_ASSERT((int)kIDA_GrBlendCoeff == (int)SkXfermode::kIDA_Coeff);
GR_STATIC_ASSERT(SkXfermode::kCoeffCount == 10);
#define SkXfermodeCoeffToGrBlendCoeff(X) ((GrBlendCoeff)(X))
///////////////////////////////////////////////////////////////////////////////
#include "SkColorPriv.h"
GrPixelConfig SkImageInfo2GrPixelConfig(SkColorType, SkAlphaType, SkColorProfileType);
static inline GrPixelConfig SkImageInfo2GrPixelConfig(const SkImageInfo& info) {
return SkImageInfo2GrPixelConfig(info.colorType(), info.alphaType(), info.profileType());
}
bool GrPixelConfig2ColorAndProfileType(GrPixelConfig, SkColorType*, SkColorProfileType*);
static inline GrColor SkColorToPremulGrColor(SkColor c) {
SkPMColor pm = SkPreMultiplyColor(c);
unsigned r = SkGetPackedR32(pm);
unsigned g = SkGetPackedG32(pm);
unsigned b = SkGetPackedB32(pm);
unsigned a = SkGetPackedA32(pm);
return GrColorPackRGBA(r, g, b, a);
}
static inline GrColor SkColorToUnpremulGrColor(SkColor c) {
unsigned r = SkColorGetR(c);
unsigned g = SkColorGetG(c);
unsigned b = SkColorGetB(c);
unsigned a = SkColorGetA(c);
return GrColorPackRGBA(r, g, b, a);
}
static inline GrColor SkColorToOpaqueGrColor(SkColor c) {
unsigned r = SkColorGetR(c);
unsigned g = SkColorGetG(c);
unsigned b = SkColorGetB(c);
return GrColorPackRGBA(r, g, b, 0xFF);
}
/** Replicates the SkColor's alpha to all four channels of the GrColor. */
static inline GrColor SkColorAlphaToGrColor(SkColor c) {
U8CPU a = SkColorGetA(c);
return GrColorPackRGBA(a, a, a, a);
}
static inline SkPMColor GrColorToSkPMColor(GrColor c) {
GrColorIsPMAssert(c);
return SkPackARGB32(GrColorUnpackA(c), GrColorUnpackR(c), GrColorUnpackG(c), GrColorUnpackB(c));
}
static inline GrColor SkPMColorToGrColor(SkPMColor c) {
return GrColorPackRGBA(SkGetPackedR32(c), SkGetPackedG32(c), SkGetPackedB32(c),
SkGetPackedA32(c));
}
GrSurfaceDesc GrImageInfoToSurfaceDesc(const SkImageInfo&);
////////////////////////////////////////////////////////////////////////////////
/**
* If the compressed data in the SkData is supported (as a texture format, this returns
* the pixel-config that should be used, and sets outStartOfDataToUpload to the ptr into
* the data where the actual raw data starts (skipping any header bytes).
*
* If the compressed data is not supported, this returns kUnknown_GrPixelConfig, and
* ignores outStartOfDataToUpload.
*/
GrPixelConfig GrIsCompressedTextureDataSupported(GrContext* ctx, SkData* data,
int expectedW, int expectedH,
const void** outStartOfDataToUpload);
bool GrIsImageInCache(const GrContext* ctx, uint32_t imageID, const SkIRect& subset,
GrTexture* nativeTexture, const GrTextureParams*);
GrTexture* GrRefCachedBitmapTexture(GrContext*, const SkBitmap&, const GrTextureParams*);
GrTexture* GrRefCachedBitmapTexture(GrContext*, const SkBitmap&, SkImageUsageType);
GrTexture* GrCreateTextureForPixels(GrContext*, const GrUniqueKey& optionalKey, GrSurfaceDesc,
SkPixelRef* pixelRefForInvalidationNotificationOrNull,
const void* pixels, size_t rowBytesOrZero);
////////////////////////////////////////////////////////////////////////////////
SkImageInfo GrMakeInfoFromTexture(GrTexture* tex, int w, int h, bool isOpaque);
// Using the dreaded SkGrPixelRef ...
SK_API void GrWrapTextureInBitmap(GrTexture* src, int w, int h, bool isOpaque,
SkBitmap* dst);
GrTextureParams::FilterMode GrSkFilterQualityToGrFilterMode(SkFilterQuality paintFilterQuality,
const SkMatrix& viewM,
const SkMatrix& localM,
bool* doBicubic);
////////////////////////////////////////////////////////////////////////////////
// Classes
class SkGlyphCache;
////////////////////////////////////////////////////////////////////////////////
#endif