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add a DispatchAlpha() for SSE2 that handles 8 pixels at a time

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Only slightly faster.

Change-Id: Ie2e57e6a0950166124cf1075c6c9b45b7abdad8c
This commit is contained in:
skal
2014-08-25 20:55:28 -07:00
parent 0b21c30b1a
commit fc98edd936
6 changed files with 98 additions and 0 deletions
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6
src/dsp/alpha_processing.c
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@ -312,6 +312,7 @@ int (*WebPDispatchAlpha)(const uint8_t*, int, int, int, uint8_t*, int);
extern void VP8FiltersInitMIPSdspR2(void);
extern void WebPInitAlphaProcessingMIPSdspR2(void);
extern void WebPInitAlphaProcessingSSE2(void);
void WebPInitAlphaProcessing(void) {
WebPMultARGBRow = MultARGBRow;
@ -322,6 +323,11 @@ void WebPInitAlphaProcessing(void) {
// If defined, use CPUInfo() to overwrite some pointers with faster versions.
if (VP8GetCPUInfo != NULL) {
#if defined(WEBP_USE_SSE2)
if (VP8GetCPUInfo(kSSE2)) {
WebPInitAlphaProcessingSSE2();
}
#endif
#if defined(WEBP_USE_MIPS_DSP_R2)
if (VP8GetCPUInfo(kMIPSdspR2)) {
VP8FiltersInitMIPSdspR2();