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introduce a separate WebPRescalerDspInit to initialize pointers

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so that we keep the details of WebPRescaler in utils/rescaler.c
when possible.

Change-Id: Ib6c1029a09b84cbc7a7d2f70dafa4d4d9132cecc
This commit is contained in:
Pascal Massimino
2015-01-10 06:46:00 -08:00
committed by James Zern
parent cbcdd5ffaf
commit ab66becaae
4 changed files with 77 additions and 54 deletions
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16
src/dsp/dsp.h
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@ -284,6 +284,22 @@ WEBP_TSAN_IGNORE_FUNCTION void WebPInitSamplers(void);
// Must be called before using WebPYUV444Converters[]
WEBP_TSAN_IGNORE_FUNCTION void WebPInitYUV444Converters(void);
//------------------------------------------------------------------------------
// Rescaler
struct WebPRescaler;
// Import a row of data and save its contribution in the rescaler.
// 'channel' denotes the channel number to be imported.
extern void (*WebPRescalerImportRow)(struct WebPRescaler* const wrk,
const uint8_t* const src, int channel);
// Export one row (starting at x_out position) from rescaler.
extern void (*WebPRescalerExportRow)(struct WebPRescaler* const wrk, int x_out);
// Must be called first before using the above.
WEBP_TSAN_IGNORE_FUNCTION void WebPRescalerDspInit(void);
//------------------------------------------------------------------------------
// Utilities for processing transparent channel.