add Altivec implementation of clear_block
Originally committed as revision 16078 to svn://svn.ffmpeg.org/ffmpeg/trunk
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@ -26,6 +26,7 @@
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#include "dsputil_ppc.h"
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#include "util_altivec.h"
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#include "types_altivec.h"
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int sad16_x2_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
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{
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@ -573,6 +574,20 @@ void diff_pixels_altivec(DCTELEM *restrict block, const uint8_t *s1,
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}
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}
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static void clear_block_altivec(DCTELEM *block) {
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LOAD_ZERO;
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vec_st(zero_s16v, 0, block);
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vec_st(zero_s16v, 16, block);
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vec_st(zero_s16v, 32, block);
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vec_st(zero_s16v, 48, block);
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vec_st(zero_s16v, 64, block);
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vec_st(zero_s16v, 80, block);
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vec_st(zero_s16v, 96, block);
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vec_st(zero_s16v, 112, block);
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}
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void add_bytes_altivec(uint8_t *dst, uint8_t *src, int w) {
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register int i;
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register vector unsigned char vdst, vsrc;
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@ -1420,6 +1435,7 @@ void dsputil_init_altivec(DSPContext* c, AVCodecContext *avctx)
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c->pix_sum = pix_sum_altivec;
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c->diff_pixels = diff_pixels_altivec;
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c->get_pixels = get_pixels_altivec;
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c->clear_block = clear_block_altivec;
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c->add_bytes= add_bytes_altivec;
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c->put_pixels_tab[0][0] = put_pixels16_altivec;
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/* the two functions do the same thing, so use the same code */
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