| /* |
| * Copyright 2011 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef SkBlitMask_DEFINED |
| #define SkBlitMask_DEFINED |
| |
| #include "SkColor.h" |
| #include "SkMask.h" |
| #include "SkPixmap.h" |
| |
| class SkBlitMask { |
| public: |
| /** |
| * Returns true if the device config and mask format were supported. |
| * else return false (nothing was drawn) |
| */ |
| static bool BlitColor(const SkPixmap& device, const SkMask& mask, |
| const SkIRect& clip, SkColor color); |
| |
| /** |
| * Function pointer that blits the mask into a device (dst) colorized |
| * by color. The number of pixels to blit is specified by width and height, |
| * but each scanline is offset by dstRB (rowbytes) and srcRB respectively. |
| */ |
| typedef void (*ColorProc)(void* dst, size_t dstRB, |
| const void* mask, size_t maskRB, |
| SkColor color, int width, int height); |
| |
| /** |
| * Function pointer that blits a row of mask(lcd16) into a row of dst |
| * colorized by a single color. The number of pixels to blit is specified |
| * by width. |
| */ |
| typedef void (*BlitLCD16RowProc)(SkPMColor dst[], const uint16_t src[], |
| SkColor color, int width, |
| SkPMColor opaqueDst); |
| |
| /** |
| * Function pointer that blits a row of src colors through a row of a mask |
| * onto a row of dst colors. The RowFactory that returns this function ptr |
| * will have been told the formats for the mask and the dst. |
| */ |
| typedef void (*RowProc)(SkPMColor* dst, const void* mask, |
| const SkPMColor* src, int width); |
| |
| /** |
| * Public entry-point to return a blitcolor BlitLCD16RowProc. |
| */ |
| static BlitLCD16RowProc BlitLCD16RowFactory(bool isOpaque); |
| |
| /** |
| * Return either platform specific optimized blitcolor BlitLCD16RowProc, |
| * or nullptr if no optimized routine is available. |
| */ |
| static BlitLCD16RowProc PlatformBlitRowProcs16(bool isOpaque); |
| |
| enum RowFlags { |
| kSrcIsOpaque_RowFlag = 1 << 0 |
| }; |
| |
| /** |
| * Public entry-point to return a blitmask RowProc. |
| * May return nullptr if config or format are not supported. |
| */ |
| static RowProc RowFactory(SkColorType, SkMask::Format, RowFlags); |
| |
| /** |
| * Return either platform specific optimized blitmask RowProc, |
| * or nullptr if no optimized routine is available. |
| */ |
| static RowProc PlatformRowProcs(SkColorType, SkMask::Format, RowFlags); |
| }; |
| |
| #endif |