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add support for RGB565, ARGB4444 and ARGB colorspace (decoder)

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RGB565 and ARGB4444 are only supported through the advanced decoding API.
ARGB being somewhat generic, there's an easy WebPDecodeARGB()
new function for convenience.

Patch by Vikas Arora (vikaas dot arora at gmail dot com)

Change-Id: Ic7b6f72bd70aca458d14e7fdd23679212430ebca
This commit is contained in:
Pascal Massimino
2011-07-13 09:08:58 -07:00
parent c915fb2aa7
commit 19db59f80f
7 changed files with 123 additions and 45 deletions
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4
src/dec/webpi.h
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@ -67,8 +67,8 @@ typedef void (*WebPUpsampleLinePairFunc)(
uint8_t* top_dst, uint8_t* bottom_dst, int len);
// Upsampler functions to be used to convert YUV to RGB(A) modes
extern WebPUpsampleLinePairFunc WebPUpsamplers[MODE_BGRA + 1];
extern WebPUpsampleLinePairFunc WebPUpsamplersKeepAlpha[MODE_BGRA + 1];
extern WebPUpsampleLinePairFunc WebPUpsamplers[MODE_LAST];
extern WebPUpsampleLinePairFunc WebPUpsamplersKeepAlpha[MODE_LAST];
// Initializes SSE2 version of the fancy upsamplers.
void WebPInitUpsamplersSSE2(void);