gfx/skia/trunk/src/core/SkBitmapProcShader.h

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/gfx/skia/trunk/src/core/SkBitmapProcShader.h	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,62 @@
     1.4 +
     1.5 +/*
     1.6 + * Copyright 2006 The Android Open Source Project
     1.7 + *
     1.8 + * Use of this source code is governed by a BSD-style license that can be
     1.9 + * found in the LICENSE file.
    1.10 + */
    1.11 +
    1.12 +
    1.13 +#ifndef SkBitmapProcShader_DEFINED
    1.14 +#define SkBitmapProcShader_DEFINED
    1.15 +
    1.16 +#include "SkShader.h"
    1.17 +#include "SkBitmapProcState.h"
    1.18 +#include "SkSmallAllocator.h"
    1.19 +
    1.20 +class SkBitmapProcShader : public SkShader {
    1.21 +public:
    1.22 +    SkBitmapProcShader(const SkBitmap& src, TileMode tx, TileMode ty);
    1.23 +
    1.24 +    // overrides from SkShader
    1.25 +    virtual bool isOpaque() const SK_OVERRIDE;
    1.26 +    virtual bool setContext(const SkBitmap&, const SkPaint&, const SkMatrix&) SK_OVERRIDE;
    1.27 +    virtual void endContext() SK_OVERRIDE;
    1.28 +    virtual uint32_t getFlags() SK_OVERRIDE { return fFlags; }
    1.29 +    virtual void shadeSpan(int x, int y, SkPMColor dstC[], int count) SK_OVERRIDE;
    1.30 +    virtual ShadeProc asAShadeProc(void** ctx) SK_OVERRIDE;
    1.31 +    virtual void shadeSpan16(int x, int y, uint16_t dstC[], int count) SK_OVERRIDE;
    1.32 +    virtual BitmapType asABitmap(SkBitmap*, SkMatrix*, TileMode*) const SK_OVERRIDE;
    1.33 +
    1.34 +    static bool CanDo(const SkBitmap&, TileMode tx, TileMode ty);
    1.35 +
    1.36 +    SK_TO_STRING_OVERRIDE()
    1.37 +    SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkBitmapProcShader)
    1.38 +
    1.39 +#if SK_SUPPORT_GPU
    1.40 +    GrEffectRef* asNewEffect(GrContext*, const SkPaint&) const SK_OVERRIDE;
    1.41 +#endif
    1.42 +
    1.43 +protected:
    1.44 +    SkBitmapProcShader(SkReadBuffer& );
    1.45 +    virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE;
    1.46 +
    1.47 +    SkBitmap          fRawBitmap;   // experimental for RLE encoding
    1.48 +    SkBitmapProcState fState;
    1.49 +    uint32_t          fFlags;
    1.50 +
    1.51 +private:
    1.52 +    typedef SkShader INHERITED;
    1.53 +};
    1.54 +
    1.55 +// Commonly used allocator. It currently is only used to allocate up to 2 objects. The total
    1.56 +// bytes requested is calculated using one of our large shaders plus the size of an Sk3DBlitter
    1.57 +// in SkDraw.cpp
    1.58 +typedef SkSmallAllocator<2, sizeof(SkBitmapProcShader) + sizeof(void*) * 2> SkTBlitterAllocator;
    1.59 +
    1.60 +// If alloc is non-NULL, it will be used to allocate the returned SkShader, and MUST outlive
    1.61 +// the SkShader.
    1.62 +SkShader* CreateBitmapShader(const SkBitmap& src, SkShader::TileMode, SkShader::TileMode,
    1.63 +                             SkTBlitterAllocator* alloc);
    1.64 +
    1.65 +#endif

mercurial