Merge remote branch 'qatar/master'

[ffmpeg] / libavcodec / x86 / ac3dsp_mmx.c

diff --git a/libavcodec/x86/ac3dsp_mmx.c b/libavcodec/x86/ac3dsp_mmx.c
index 835b10696d11365bffc242afc23aff3abb3ebdc0..97d0657aa636d3c07f784ea500f5c00dd1040783 100644 (file)
--- a/libavcodec/x86/ac3dsp_mmx.c
+++ b/libavcodec/x86/ac3dsp_mmx.c
@@ -38,7 +38,11 @@ extern void ff_ac3_lshift_int16_sse2(int16_t *src, unsigned int len, unsigned in
 extern void ff_ac3_rshift_int32_mmx (int32_t *src, unsigned int len, unsigned int shift);
 extern void ff_ac3_rshift_int32_sse2(int32_t *src, unsigned int len, unsigned int shift);
 
-av_cold void ff_ac3dsp_init_x86(AC3DSPContext *c)
+extern void ff_float_to_fixed24_3dnow(int32_t *dst, const float *src, unsigned int len);
+extern void ff_float_to_fixed24_sse  (int32_t *dst, const float *src, unsigned int len);
+extern void ff_float_to_fixed24_sse2 (int32_t *dst, const float *src, unsigned int len);
+
+av_cold void ff_ac3dsp_init_x86(AC3DSPContext *c, int bit_exact)
 {
     int mm_flags = av_get_cpu_flags();
 
@@ -49,13 +53,22 @@ av_cold void ff_ac3dsp_init_x86(AC3DSPContext *c)
         c->ac3_lshift_int16 = ff_ac3_lshift_int16_mmx;
         c->ac3_rshift_int32 = ff_ac3_rshift_int32_mmx;
     }
+    if (mm_flags & AV_CPU_FLAG_3DNOW && HAVE_AMD3DNOW) {
+        if (!bit_exact) {
+            c->float_to_fixed24 = ff_float_to_fixed24_3dnow;
+        }
+    }
     if (mm_flags & AV_CPU_FLAG_MMX2 && HAVE_MMX2) {
         c->ac3_exponent_min = ff_ac3_exponent_min_mmxext;
         c->ac3_max_msb_abs_int16 = ff_ac3_max_msb_abs_int16_mmxext;
     }
+    if (mm_flags & AV_CPU_FLAG_SSE && HAVE_SSE) {
+        c->float_to_fixed24 = ff_float_to_fixed24_sse;
+    }
     if (mm_flags & AV_CPU_FLAG_SSE2 && HAVE_SSE) {
         c->ac3_exponent_min = ff_ac3_exponent_min_sse2;
         c->ac3_max_msb_abs_int16 = ff_ac3_max_msb_abs_int16_sse2;
+        c->float_to_fixed24 = ff_float_to_fixed24_sse2;
         if (!(mm_flags & AV_CPU_FLAG_SSE2SLOW)) {
             c->ac3_lshift_int16 = ff_ac3_lshift_int16_sse2;
             c->ac3_rshift_int32 = ff_ac3_rshift_int32_sse2;