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update libwebp up to 0.3.0

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This commit is contained in:
AoD314
2013-04-02 15:22:10 +04:00
parent db45e04d58
commit 740941c8b8
64 changed files with 5394 additions and 2773 deletions
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21
3rdparty/libwebp/dec/alpha.c vendored
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@@ -13,7 +13,7 @@
#include "./vp8i.h"
#include "./vp8li.h"
#include "../utils/filters.h"
#include "../utils/quant_levels.h"
#include "../utils/quant_levels_dec.h"
#include "../webp/format_constants.h"
#if defined(__cplusplus) || defined(c_plusplus)
@@ -44,7 +44,6 @@ static int DecodeAlpha(const uint8_t* data, size_t data_size,
int width, int height, int stride, uint8_t* output) {
uint8_t* decoded_data = NULL;
const size_t decoded_size = height * width;
uint8_t* unfiltered_data = NULL;
WEBP_FILTER_TYPE filter;
int pre_processing;
int rsrv;
@@ -83,29 +82,19 @@ static int DecodeAlpha(const uint8_t* data, size_t data_size,
}
if (ok) {
WebPFilterFunc unfilter_func = WebPUnfilters[filter];
WebPUnfilterFunc unfilter_func = WebPUnfilters[filter];
if (unfilter_func != NULL) {
unfiltered_data = (uint8_t*)malloc(decoded_size);
if (unfiltered_data == NULL) {
ok = 0;
goto Error;
}
// TODO(vikas): Implement on-the-fly decoding & filter mechanism to decode
// and apply filter per image-row.
unfilter_func(decoded_data, width, height, 1, width, unfiltered_data);
// Construct raw_data (height x stride) from alpha data (height x width).
CopyPlane(unfiltered_data, width, output, stride, width, height);
free(unfiltered_data);
} else {
// Construct raw_data (height x stride) from alpha data (height x width).
CopyPlane(decoded_data, width, output, stride, width, height);
unfilter_func(width, height, width, decoded_data);
}
// Construct raw_data (height x stride) from alpha data (height x width).
CopyPlane(decoded_data, width, output, stride, width, height);
if (pre_processing == ALPHA_PREPROCESSED_LEVELS) {
ok = DequantizeLevels(decoded_data, width, height);
}
}
Error:
if (method != ALPHA_NO_COMPRESSION) {
free(decoded_data);
}