SkGr.h

/*
 * 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 "GrColor.h"
#include "GrTextureAccess.h"
#include "SkColor.h"
#include "SkColorPriv.h"
#include "SkFilterQuality.h"
#include "SkImageInfo.h"

class GrCaps;
class GrContext;
class GrTexture;
class GrTextureParams;
class SkBitmap;

// Sk to Gr Type conversions

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);
}

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));
}


GrTexture* GrRefCachedBitmapTexture(GrContext*, const SkBitmap&, const GrTextureParams&,
                                    SkSourceGammaTreatment);

sk_sp<GrTexture> GrMakeCachedBitmapTexture(GrContext*, const SkBitmap&, const GrTextureParams&,
                                           SkSourceGammaTreatment);

// TODO: Move SkImageInfo2GrPixelConfig to SkGrPriv.h (requires cleanup to SkWindow its subclasses).
GrPixelConfig SkImageInfo2GrPixelConfig(SkColorType, SkAlphaType, const SkColorSpace*,
                                        const GrCaps&);

static inline GrPixelConfig SkImageInfo2GrPixelConfig(const SkImageInfo& info, const GrCaps& caps) {
    return SkImageInfo2GrPixelConfig(info.colorType(), info.alphaType(), info.colorSpace(), caps);
}

GrTextureParams::FilterMode GrSkFilterQualityToGrFilterMode(SkFilterQuality paintFilterQuality,
                                                            const SkMatrix& viewM,
                                                            const SkMatrix& localM,
                                                            bool* doBicubic);

#endif