1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/skia/trunk/src/core/SkBlitMask.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,90 @@
1.4 +/*
1.5 + * Copyright 2011 Google Inc.
1.6 + *
1.7 + * Use of this source code is governed by a BSD-style license that can be
1.8 + * found in the LICENSE file.
1.9 + */
1.10 +
1.11 +#ifndef SkBlitMask_DEFINED
1.12 +#define SkBlitMask_DEFINED
1.13 +
1.14 +#include "SkBitmap.h"
1.15 +#include "SkColor.h"
1.16 +#include "SkMask.h"
1.17 +
1.18 +class SkBlitMask {
1.19 +public:
1.20 + /**
1.21 + * Returns true if the device config and mask format were supported.
1.22 + * else return false (nothing was drawn)
1.23 + */
1.24 + static bool BlitColor(const SkBitmap& device, const SkMask& mask,
1.25 + const SkIRect& clip, SkColor color);
1.26 +
1.27 + /**
1.28 + * Function pointer that blits the mask into a device (dst) colorized
1.29 + * by color. The number of pixels to blit is specified by width and height,
1.30 + * but each scanline is offset by dstRB (rowbytes) and srcRB respectively.
1.31 + */
1.32 + typedef void (*ColorProc)(void* dst, size_t dstRB,
1.33 + const void* mask, size_t maskRB,
1.34 + SkColor color, int width, int height);
1.35 +
1.36 + /**
1.37 + * Function pointer that blits a row of mask(lcd16) into a row of dst
1.38 + * colorized by a single color. The number of pixels to blit is specified
1.39 + * by width.
1.40 + */
1.41 + typedef void (*BlitLCD16RowProc)(SkPMColor dst[], const uint16_t src[],
1.42 + SkColor color, int width,
1.43 + SkPMColor opaqueDst);
1.44 +
1.45 + /**
1.46 + * Function pointer that blits a row of src colors through a row of a mask
1.47 + * onto a row of dst colors. The RowFactory that returns this function ptr
1.48 + * will have been told the formats for the mask and the dst.
1.49 + */
1.50 + typedef void (*RowProc)(void* dst, const void* mask,
1.51 + const SkPMColor* src, int width);
1.52 +
1.53 + /**
1.54 + * Public entry-point to return a blitmask ColorProc.
1.55 + * May return NULL if config or format are not supported.
1.56 + */
1.57 + static ColorProc ColorFactory(SkBitmap::Config, SkMask::Format, SkColor);
1.58 +
1.59 + /**
1.60 + * Return either platform specific optimized blitmask ColorProc,
1.61 + * or NULL if no optimized routine is available.
1.62 + */
1.63 + static ColorProc PlatformColorProcs(SkBitmap::Config, SkMask::Format, SkColor);
1.64 +
1.65 + /**
1.66 + * Public entry-point to return a blitcolor BlitLCD16RowProc.
1.67 + */
1.68 + static BlitLCD16RowProc BlitLCD16RowFactory(bool isOpaque);
1.69 +
1.70 + /**
1.71 + * Return either platform specific optimized blitcolor BlitLCD16RowProc,
1.72 + * or NULL if no optimized routine is available.
1.73 + */
1.74 + static BlitLCD16RowProc PlatformBlitRowProcs16(bool isOpaque);
1.75 +
1.76 + enum RowFlags {
1.77 + kSrcIsOpaque_RowFlag = 1 << 0
1.78 + };
1.79 +
1.80 + /**
1.81 + * Public entry-point to return a blitmask RowProc.
1.82 + * May return NULL if config or format are not supported.
1.83 + */
1.84 + static RowProc RowFactory(SkBitmap::Config, SkMask::Format, RowFlags);
1.85 +
1.86 + /**
1.87 + * Return either platform specific optimized blitmask RowProc,
1.88 + * or NULL if no optimized routine is available.
1.89 + */
1.90 + static RowProc PlatformRowProcs(SkBitmap::Config, SkMask::Format, RowFlags);
1.91 +};
1.92 +
1.93 +#endif
