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MIPS: dspr2: added optimization for (un)filters

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HorizontalFilter
VerticalFilter
GradientFilter
HorizontalUnfilter
VerticalUnfilter
GradientUnfilter

Change-Id: I54055b4767c37719691811072e95bf79c1f627b1
This commit is contained in:
Djordje Pesut
2014-08-04 16:22:10 +02:00
committed by Gerrit Code Review
parent 137e609016
commit b4dc4069a2
8 changed files with 350 additions and 4 deletions
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4
src/utils/filters.c
View File

@ -248,14 +248,14 @@ WEBP_FILTER_TYPE EstimateBestFilter(const uint8_t* data,
//------------------------------------------------------------------------------
const WebPFilterFunc WebPFilters[WEBP_FILTER_LAST] = {
WebPFilterFunc WebPFilters[WEBP_FILTER_LAST] = {
NULL, // WEBP_FILTER_NONE
HorizontalFilter, // WEBP_FILTER_HORIZONTAL
VerticalFilter, // WEBP_FILTER_VERTICAL
GradientFilter // WEBP_FILTER_GRADIENT
};
const WebPUnfilterFunc WebPUnfilters[WEBP_FILTER_LAST] = {
WebPUnfilterFunc WebPUnfilters[WEBP_FILTER_LAST] = {
NULL, // WEBP_FILTER_NONE
HorizontalUnfilter, // WEBP_FILTER_HORIZONTAL
VerticalUnfilter, // WEBP_FILTER_VERTICAL

4
src/utils/filters.h
View File

@ -41,12 +41,12 @@ typedef void (*WebPUnfilterFunc)(int width, int height, int stride,
// in raster order.
// 'stride' is number of bytes per scan line (with possible padding).
// 'out' should be pre-allocated.
extern const WebPFilterFunc WebPFilters[WEBP_FILTER_LAST];
extern WebPFilterFunc WebPFilters[WEBP_FILTER_LAST];
// In-place reconstruct the original data from the given filtered data.
// The reconstruction will be done for 'num_rows' rows starting from 'row'
// (assuming rows upto 'row - 1' are already reconstructed).
extern const WebPUnfilterFunc WebPUnfilters[WEBP_FILTER_LAST];
extern WebPUnfilterFunc WebPUnfilters[WEBP_FILTER_LAST];
// Fast estimate of a potentially good filter.
WEBP_FILTER_TYPE EstimateBestFilter(const uint8_t* data,