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xbmc: add PR2748
Signed-off-by: Stephan Raue <stephan@openelec.tv>
This commit is contained in:
Stephan Raue
parent
804e2f52c4
commit
8caa619554
295
packages/mediacenter/xbmc/patches/12.2.0/xbmc-990.15-PR2748.patch
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295
packages/mediacenter/xbmc/patches/12.2.0/xbmc-990.15-PR2748.patch
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@ -0,0 +1,295 @@
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From 4a61baea4a936089b589f0b7a834aa180a1017ea Mon Sep 17 00:00:00 2001
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From: Bob van Loosen <bob.loosen@gmail.com>
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Date: Tue, 14 May 2013 12:28:45 +0200
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Subject: [PATCH 1/2] fixed: when doing a format conversion from float to 32
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bit int, multiply with INT32_MAX - 127, since this is the maximum value that
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can be stored in 32 bit float and int, if INT32_MAX gets converted to float,
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it gets rounded to INT32_MAX + 1 which can cause wrap around distortion
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---
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xbmc/cores/AudioEngine/Utils/AEConvert.cpp | 32 +++++++++++++++++-------------
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1 file changed, 18 insertions(+), 14 deletions(-)
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diff --git a/xbmc/cores/AudioEngine/Utils/AEConvert.cpp b/xbmc/cores/AudioEngine/Utils/AEConvert.cpp
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index 97ec87b..5f0af63 100644
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--- a/xbmc/cores/AudioEngine/Utils/AEConvert.cpp
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+++ b/xbmc/cores/AudioEngine/Utils/AEConvert.cpp
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@@ -922,17 +922,21 @@ unsigned int CAEConvert::Float_S24NE3(float *data, const unsigned int samples, u
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return samples * 3;
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}
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+//float can't store INT32_MAX, it gets rounded up to INT32_MAX + 1
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+//INT32_MAX - 127 is the maximum value that can exactly be stored in both 32 bit float and int
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+#define MUL32 ((float)(INT32_MAX - 127))
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+
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unsigned int CAEConvert::Float_S32LE(float *data, const unsigned int samples, uint8_t *dest)
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{
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int32_t *dst = (int32_t*)dest;
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#ifdef __SSE__
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- const __m128 mul = _mm_set_ps1((float)INT32_MAX);
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+ const __m128 mul = _mm_set_ps1(MUL32);
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unsigned int count = samples;
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/* work around invalid alignment */
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while ((((uintptr_t)data & 0xF) || ((uintptr_t)dest & 0xF)) && count > 0)
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{
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- dst[0] = safeRound(data[0] * (float)INT32_MAX);
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+ dst[0] = safeRound(data[0] * MUL32);
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++data;
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++dst;
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--count;
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@@ -955,7 +959,7 @@ unsigned int CAEConvert::Float_S32LE(float *data, const unsigned int samples, ui
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const uint32_t odd = samples - even;
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if (odd == 1)
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{
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- dst[0] = safeRound(data[0] * (float)INT32_MAX);
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+ dst[0] = safeRound(data[0] * MUL32);
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dst[0] = Endian_SwapLE32(dst[0]);
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}
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else
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@@ -988,7 +992,7 @@ unsigned int CAEConvert::Float_S32LE(float *data, const unsigned int samples, ui
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/* no SIMD */
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for (uint32_t i = 0; i < samples; ++i, ++data, ++dst)
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{
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- dst[0] = safeRound(data[0] * (float)INT32_MAX);
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+ dst[0] = safeRound(data[0] * MUL32);
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dst[0] = Endian_SwapLE32(dst[0]);
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}
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#endif
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@@ -1002,7 +1006,7 @@ unsigned int CAEConvert::Float_S32LE_Neon(float *data, const unsigned int sample
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int32_t *dst = (int32_t*)dest;
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for (float *end = data + (samples & ~0x3); data < end; data += 4, dst += 4)
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{
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- float32x4_t val = vmulq_n_f32(vld1q_f32((const float32_t *)data), INT32_MAX);
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+ float32x4_t val = vmulq_n_f32(vld1q_f32((const float32_t *)data), MUL32);
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int32x4_t ret = vcvtq_s32_f32(val);
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#ifdef __BIG_ENDIAN__
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ret = vrev64q_s32(ret);
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@@ -1012,7 +1016,7 @@ unsigned int CAEConvert::Float_S32LE_Neon(float *data, const unsigned int sample
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if (samples & 0x2)
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{
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- float32x2_t val = vmul_n_f32(vld1_f32((const float32_t *)data), INT32_MAX);
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+ float32x2_t val = vmul_n_f32(vld1_f32((const float32_t *)data), MUL32);
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int32x2_t ret = vcvt_s32_f32(val);
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#ifdef __BIG_ENDIAN__
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ret = vrev64_s32(ret);
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@@ -1024,7 +1028,7 @@ unsigned int CAEConvert::Float_S32LE_Neon(float *data, const unsigned int sample
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if (samples & 0x1)
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{
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- dst[0] = safeRound(data[0] * (float)INT32_MAX);
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+ dst[0] = safeRound(data[0] * MUL32);
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dst[0] = Endian_SwapLE32(dst[0]);
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}
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#endif
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@@ -1035,13 +1039,13 @@ unsigned int CAEConvert::Float_S32BE(float *data, const unsigned int samples, ui
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{
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int32_t *dst = (int32_t*)dest;
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#ifdef __SSE__
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- const __m128 mul = _mm_set_ps1((float)INT32_MAX);
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+ const __m128 mul = _mm_set_ps1(MUL32);
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unsigned int count = samples;
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/* work around invalid alignment */
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while ((((uintptr_t)data & 0xF) || ((uintptr_t)dest & 0xF)) && count > 0)
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{
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- dst[0] = safeRound(data[0] * (float)INT32_MAX);
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+ dst[0] = safeRound(data[0] * MUL32);
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++data;
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++dst;
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--count;
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@@ -1064,7 +1068,7 @@ unsigned int CAEConvert::Float_S32BE(float *data, const unsigned int samples, ui
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const uint32_t odd = samples - even;
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if (odd == 1)
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{
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- dst[0] = safeRound(data[0] * (float)INT32_MAX);
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+ dst[0] = safeRound(data[0] * MUL32);
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dst[0] = Endian_SwapBE32(dst[0]);
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}
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else
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@@ -1096,7 +1100,7 @@ unsigned int CAEConvert::Float_S32BE(float *data, const unsigned int samples, ui
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/* no SIMD */
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for (uint32_t i = 0; i < samples; ++i, ++data, ++dst)
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{
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- dst[0] = safeRound(data[0] * (float)INT32_MAX);
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+ dst[0] = safeRound(data[0] * MUL32);
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dst[0] = Endian_SwapBE32(dst[0]);
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}
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#endif
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@@ -1110,7 +1114,7 @@ unsigned int CAEConvert::Float_S32BE_Neon(float *data, const unsigned int sample
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int32_t *dst = (int32_t*)dest;
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for (float *end = data + (samples & ~0x3); data < end; data += 4, dst += 4)
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{
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- float32x4_t val = vmulq_n_f32(vld1q_f32((const float32_t *)data), INT32_MAX);
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+ float32x4_t val = vmulq_n_f32(vld1q_f32((const float32_t *)data), MUL32);
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int32x4_t ret = vcvtq_s32_f32(val);
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#ifndef __BIG_ENDIAN__
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ret = vrev64q_s32(ret);
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@@ -1120,7 +1124,7 @@ unsigned int CAEConvert::Float_S32BE_Neon(float *data, const unsigned int sample
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if (samples & 0x2)
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{
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- float32x2_t val = vmul_n_f32(vld1_f32((const float32_t *)data), INT32_MAX);
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+ float32x2_t val = vmul_n_f32(vld1_f32((const float32_t *)data), MUL32);
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int32x2_t ret = vcvt_s32_f32(val);
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#ifndef __BIG_ENDIAN__
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ret = vrev64_s32(ret);
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@@ -1132,7 +1136,7 @@ unsigned int CAEConvert::Float_S32BE_Neon(float *data, const unsigned int sample
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if (samples & 0x1)
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{
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- dst[0] = safeRound(data[0] * (float)INT32_MAX);
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+ dst[0] = safeRound(data[0] * MUL32);
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dst[0] = Endian_SwapBE32(dst[0]);
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}
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#endif
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--
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1.8.1.6
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From edf2e3d3c9b124446961a9b66aaf401cf1770500 Mon Sep 17 00:00:00 2001
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From: Bob van Loosen <bob.loosen@gmail.com>
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Date: Tue, 14 May 2013 18:43:01 +0200
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Subject: [PATCH 2/2] rename: MUL32 -> AE_MUL32
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---
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xbmc/cores/AudioEngine/Utils/AEConvert.cpp | 30 +++++++++++++++---------------
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1 file changed, 15 insertions(+), 15 deletions(-)
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diff --git a/xbmc/cores/AudioEngine/Utils/AEConvert.cpp b/xbmc/cores/AudioEngine/Utils/AEConvert.cpp
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index 5f0af63..0b0b646 100644
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--- a/xbmc/cores/AudioEngine/Utils/AEConvert.cpp
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+++ b/xbmc/cores/AudioEngine/Utils/AEConvert.cpp
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@@ -924,19 +924,19 @@ unsigned int CAEConvert::Float_S24NE3(float *data, const unsigned int samples, u
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//float can't store INT32_MAX, it gets rounded up to INT32_MAX + 1
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//INT32_MAX - 127 is the maximum value that can exactly be stored in both 32 bit float and int
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-#define MUL32 ((float)(INT32_MAX - 127))
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+#define AE_MUL32 ((float)(INT32_MAX - 127))
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unsigned int CAEConvert::Float_S32LE(float *data, const unsigned int samples, uint8_t *dest)
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{
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int32_t *dst = (int32_t*)dest;
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#ifdef __SSE__
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- const __m128 mul = _mm_set_ps1(MUL32);
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+ const __m128 mul = _mm_set_ps1(AE_MUL32);
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unsigned int count = samples;
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/* work around invalid alignment */
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while ((((uintptr_t)data & 0xF) || ((uintptr_t)dest & 0xF)) && count > 0)
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{
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- dst[0] = safeRound(data[0] * MUL32);
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+ dst[0] = safeRound(data[0] * AE_MUL32);
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++data;
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++dst;
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--count;
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@@ -959,7 +959,7 @@ unsigned int CAEConvert::Float_S32LE(float *data, const unsigned int samples, ui
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const uint32_t odd = samples - even;
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if (odd == 1)
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{
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- dst[0] = safeRound(data[0] * MUL32);
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+ dst[0] = safeRound(data[0] * AE_MUL32);
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dst[0] = Endian_SwapLE32(dst[0]);
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}
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else
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@@ -992,7 +992,7 @@ unsigned int CAEConvert::Float_S32LE(float *data, const unsigned int samples, ui
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/* no SIMD */
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for (uint32_t i = 0; i < samples; ++i, ++data, ++dst)
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{
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- dst[0] = safeRound(data[0] * MUL32);
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+ dst[0] = safeRound(data[0] * AE_MUL32);
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dst[0] = Endian_SwapLE32(dst[0]);
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}
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#endif
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@@ -1006,7 +1006,7 @@ unsigned int CAEConvert::Float_S32LE_Neon(float *data, const unsigned int sample
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int32_t *dst = (int32_t*)dest;
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for (float *end = data + (samples & ~0x3); data < end; data += 4, dst += 4)
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{
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- float32x4_t val = vmulq_n_f32(vld1q_f32((const float32_t *)data), MUL32);
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+ float32x4_t val = vmulq_n_f32(vld1q_f32((const float32_t *)data), AE_MUL32);
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int32x4_t ret = vcvtq_s32_f32(val);
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#ifdef __BIG_ENDIAN__
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ret = vrev64q_s32(ret);
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@@ -1016,7 +1016,7 @@ unsigned int CAEConvert::Float_S32LE_Neon(float *data, const unsigned int sample
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if (samples & 0x2)
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{
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- float32x2_t val = vmul_n_f32(vld1_f32((const float32_t *)data), MUL32);
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+ float32x2_t val = vmul_n_f32(vld1_f32((const float32_t *)data), AE_MUL32);
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int32x2_t ret = vcvt_s32_f32(val);
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#ifdef __BIG_ENDIAN__
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ret = vrev64_s32(ret);
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@@ -1028,7 +1028,7 @@ unsigned int CAEConvert::Float_S32LE_Neon(float *data, const unsigned int sample
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if (samples & 0x1)
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{
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- dst[0] = safeRound(data[0] * MUL32);
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+ dst[0] = safeRound(data[0] * AE_MUL32);
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dst[0] = Endian_SwapLE32(dst[0]);
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}
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#endif
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@@ -1039,13 +1039,13 @@ unsigned int CAEConvert::Float_S32BE(float *data, const unsigned int samples, ui
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{
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int32_t *dst = (int32_t*)dest;
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#ifdef __SSE__
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- const __m128 mul = _mm_set_ps1(MUL32);
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+ const __m128 mul = _mm_set_ps1(AE_MUL32);
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unsigned int count = samples;
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/* work around invalid alignment */
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while ((((uintptr_t)data & 0xF) || ((uintptr_t)dest & 0xF)) && count > 0)
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{
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- dst[0] = safeRound(data[0] * MUL32);
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+ dst[0] = safeRound(data[0] * AE_MUL32);
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++data;
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++dst;
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--count;
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@@ -1068,7 +1068,7 @@ unsigned int CAEConvert::Float_S32BE(float *data, const unsigned int samples, ui
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const uint32_t odd = samples - even;
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if (odd == 1)
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{
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- dst[0] = safeRound(data[0] * MUL32);
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+ dst[0] = safeRound(data[0] * AE_MUL32);
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dst[0] = Endian_SwapBE32(dst[0]);
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}
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else
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@@ -1100,7 +1100,7 @@ unsigned int CAEConvert::Float_S32BE(float *data, const unsigned int samples, ui
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/* no SIMD */
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for (uint32_t i = 0; i < samples; ++i, ++data, ++dst)
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{
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- dst[0] = safeRound(data[0] * MUL32);
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+ dst[0] = safeRound(data[0] * AE_MUL32);
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dst[0] = Endian_SwapBE32(dst[0]);
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}
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#endif
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@@ -1114,7 +1114,7 @@ unsigned int CAEConvert::Float_S32BE_Neon(float *data, const unsigned int sample
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int32_t *dst = (int32_t*)dest;
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for (float *end = data + (samples & ~0x3); data < end; data += 4, dst += 4)
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{
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- float32x4_t val = vmulq_n_f32(vld1q_f32((const float32_t *)data), MUL32);
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+ float32x4_t val = vmulq_n_f32(vld1q_f32((const float32_t *)data), AE_MUL32);
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int32x4_t ret = vcvtq_s32_f32(val);
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#ifndef __BIG_ENDIAN__
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ret = vrev64q_s32(ret);
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@@ -1124,7 +1124,7 @@ unsigned int CAEConvert::Float_S32BE_Neon(float *data, const unsigned int sample
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if (samples & 0x2)
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{
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- float32x2_t val = vmul_n_f32(vld1_f32((const float32_t *)data), MUL32);
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+ float32x2_t val = vmul_n_f32(vld1_f32((const float32_t *)data), AE_MUL32);
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int32x2_t ret = vcvt_s32_f32(val);
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#ifndef __BIG_ENDIAN__
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ret = vrev64_s32(ret);
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@@ -1136,7 +1136,7 @@ unsigned int CAEConvert::Float_S32BE_Neon(float *data, const unsigned int sample
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if (samples & 0x1)
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{
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- dst[0] = safeRound(data[0] * MUL32);
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+ dst[0] = safeRound(data[0] * AE_MUL32);
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dst[0] = Endian_SwapBE32(dst[0]);
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}
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#endif
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--
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1.8.1.6
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