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Code Issues Releases Activity

x86: Only use optimizations with cmov if the CPU supports the instruction

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This commit is contained in:
Diego Biurrun
2012-06-19 12:55:10 +02:00
parent 65345a5a30
commit fe07c9c6b5
3 changed files with 6 additions and 3 deletions
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3
libavcodec/x86/dsputil_mmx.c
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@@ -2829,7 +2829,8 @@ static void dsputil_init_3dnow(DSPContext *c, AVCodecContext *avctx,
c->vorbis_inverse_coupling = vorbis_inverse_coupling_3dnow;
#if HAVE_7REGS
c->add_hfyu_median_prediction = add_hfyu_median_prediction_cmov;
if (mm_flags & AV_CPU_FLAG_CMOV)
c->add_hfyu_median_prediction = add_hfyu_median_prediction_cmov;
#endif
}

3
libavcodec/x86/h264_intrapred_init.c
View File

@@ -188,7 +188,8 @@ void ff_h264_pred_init_x86(H264PredContext *h, int codec_id, const int bit_depth
if (chroma_format_idc == 1)
h->pred8x8 [PLANE_PRED8x8] = ff_pred8x8_plane_mmx;
if (codec_id == CODEC_ID_SVQ3) {
h->pred16x16[PLANE_PRED8x8] = ff_pred16x16_plane_svq3_mmx;
if (mm_flags & AV_CPU_FLAG_CMOV)
h->pred16x16[PLANE_PRED8x8] = ff_pred16x16_plane_svq3_mmx;
} else if (codec_id == CODEC_ID_RV40) {
h->pred16x16[PLANE_PRED8x8] = ff_pred16x16_plane_rv40_mmx;
} else {

3
libavcodec/x86/h264dsp_mmx.c
View File

@@ -361,7 +361,8 @@ void ff_h264dsp_init_x86(H264DSPContext *c, const int bit_depth, const int chrom
if (chroma_format_idc == 1)
c->h264_idct_add8 = ff_h264_idct_add8_8_mmx;
c->h264_idct_add16intra = ff_h264_idct_add16intra_8_mmx;
c->h264_luma_dc_dequant_idct= ff_h264_luma_dc_dequant_idct_mmx;
if (mm_flags & AV_CPU_FLAG_CMOV)
c->h264_luma_dc_dequant_idct = ff_h264_luma_dc_dequant_idct_mmx;
if (mm_flags & AV_CPU_FLAG_MMX2) {
c->h264_idct_dc_add = ff_h264_idct_dc_add_8_mmx2;