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Add progress hook granularity in lossless

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A WebPPicture instance is necessary to call WebPReportProgress() which
sets WebPPicture::error_code so as well use WebPEncodingSetError() to
record errors too, instead of functions returning a WebPEncodingError.
However there must be one WebPPicture instance per thread, with error
codes merged at sync time. A mutex could simplify that but it is not
the objective of this change.

https://groups.google.com/a/webmproject.org/g/webp-discuss/c/yOiP8APubgc/m/vCTvxl6ODgAJ

Change-Id: Ia1a8f9d1199202e1c88484ce719b0180a80447ce
This commit is contained in:
Yannis Guyon
2022-02-02 14:39:21 +01:00
parent 26139c7398
commit ec178f2c7f
9 changed files with 414 additions and 284 deletions
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24
src/enc/vp8li_enc.h
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@ -89,9 +89,10 @@ int VP8LEncodeImage(const WebPConfig* const config,
// Encodes the main image stream using the supplied bit writer.
// If 'use_cache' is false, disables the use of color cache.
WebPEncodingError VP8LEncodeStream(const WebPConfig* const config,
const WebPPicture* const picture,
VP8LBitWriter* const bw, int use_cache);
// Returns false in case of error (stored in picture->error_code).
int VP8LEncodeStream(const WebPConfig* const config,
const WebPPicture* const picture, VP8LBitWriter* const bw,
int use_cache);
#if (WEBP_NEAR_LOSSLESS == 1)
// in near_lossless.c
@ -103,13 +104,18 @@ int VP8ApplyNearLossless(const WebPPicture* const picture, int quality,
//------------------------------------------------------------------------------
// Image transforms in predictor.c.
void VP8LResidualImage(int width, int height, int bits, int low_effort,
uint32_t* const argb, uint32_t* const argb_scratch,
uint32_t* const image, int near_lossless, int exact,
int used_subtract_green);
// pic and percent are for progress.
// Returns false in case of error (stored in pic->error_code).
int VP8LResidualImage(int width, int height, int bits, int low_effort,
uint32_t* const argb, uint32_t* const argb_scratch,
uint32_t* const image, int near_lossless, int exact,
int used_subtract_green, const WebPPicture* const pic,
int percent_range, int* const percent);
void VP8LColorSpaceTransform(int width, int height, int bits, int quality,
uint32_t* const argb, uint32_t* image);
int VP8LColorSpaceTransform(int width, int height, int bits, int quality,
uint32_t* const argb, uint32_t* image,
const WebPPicture* const pic, int percent_range,
int* const percent);
//------------------------------------------------------------------------------