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fmt-ops: use faster f32 -> s32 conversion

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This commit is contained in:
Wim Taymans 2019-03-26 17:24:14 +01:00
parent 9c8913437b
commit ecc3e78ad4
4 changed files with 41 additions and 42 deletions
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5
spa/plugins/audioconvert/fmt-ops.c
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@ -51,6 +51,8 @@
#define S24_TO_F32(v) (((int32_t)(v)) * (1.0f / S24_SCALE))
#define F32_TO_S24(v) (int32_t)(SPA_CLAMP(v, -1.0f, 1.0f) * S24_SCALE)
#define S32_SCALE 2147483648.0f
#define S32_MIN 2147483520.0f
#define S32_TO_F32(v) S24_TO_F32((v) >> 8)
#define F32_TO_S32(v) (F32_TO_S24(v) << 8)
@ -734,6 +736,7 @@ static const struct conv_info {
uint32_t src_fmt;
uint32_t dst_fmt;
#define FEATURE_SSE2 SPA_CPU_FLAG_SSE2
#define FEATURE_SSSE3 SPA_CPU_FLAG_SSSE3
uint32_t features;
convert_func_t func;
@ -770,7 +773,7 @@ static const struct conv_info {
{ SPA_AUDIO_FORMAT_S24, SPA_AUDIO_FORMAT_F32P, FEATURE_SSE2, conv_s24_to_f32d_sse41 },
#endif
#if defined (__SSSE3__)
{ SPA_AUDIO_FORMAT_S24, SPA_AUDIO_FORMAT_F32P, FEATURE_SSE2, conv_s24_to_f32d_ssse3 },
{ SPA_AUDIO_FORMAT_S24, SPA_AUDIO_FORMAT_F32P, FEATURE_SSSE3, conv_s24_to_f32d_ssse3 },
#endif
#if defined (__SSE2__)
{ SPA_AUDIO_FORMAT_S24, SPA_AUDIO_FORMAT_F32P, FEATURE_SSE2, conv_s24_to_f32d_sse2 },