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Commit 75df30c1 authored by fbarchard@google.com's avatar fbarchard@google.com
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YUY2ToI420 handle unaligned pointers 

BUG=none
TEST=none
Review URL: http://webrtc-codereview.appspot.com/329001

git-svn-id: http://libyuv.googlecode.com/svn/trunk@111 16f28f9a-4ce2-e073-06de-1de4eb20be90
parent 103878d5
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Showing with 159 additions and 20 deletions
source/planar_functions.cc
View file @ 75df30c1
...@@ -928,6 +928,7 @@ void YUY2ToI420RowUV_SSE2(const uint8* src_yuy2, int stride_yuy2, ...@@ -928,6 +928,7 @@ void YUY2ToI420RowUV_SSE2(const uint8* src_yuy2, int stride_yuy2,
mov ecx, [esp + 8 + 20] // pix mov ecx, [esp + 8 + 20] // pix
pcmpeqb xmm5, xmm5 // generate mask 0x00ff00ff pcmpeqb xmm5, xmm5 // generate mask 0x00ff00ff
psrlw xmm5, 8 psrlw xmm5, 8
sub edi, edx
convertloop: convertloop:
movdqa xmm0, [eax] movdqa xmm0, [eax]
...@@ -943,12 +944,79 @@ void YUY2ToI420RowUV_SSE2(const uint8* src_yuy2, int stride_yuy2, ...@@ -943,12 +944,79 @@ void YUY2ToI420RowUV_SSE2(const uint8* src_yuy2, int stride_yuy2,
movdqa xmm1, xmm0 movdqa xmm1, xmm0
pand xmm0, xmm5 // U pand xmm0, xmm5 // U
packuswb xmm0, xmm0 packuswb xmm0, xmm0
psrlw xmm1, 8 // V
packuswb xmm1, xmm1
movq qword ptr [edx], xmm0 movq qword ptr [edx], xmm0
movq qword ptr [edx + edi], xmm1
lea edx, [edx + 8] lea edx, [edx + 8]
sub ecx, 16
ja convertloop
pop edi
pop esi
ret
}
}
__declspec(naked)
void YUY2ToI420RowY_Unaligned_SSE2(const uint8* src_yuy2,
uint8* dst_y, int pix) {
__asm {
mov eax, [esp + 4] // src_yuy2
mov edx, [esp + 8] // dst_y
mov ecx, [esp + 12] // pix
pcmpeqb xmm5, xmm5 // generate mask 0x00ff00ff
psrlw xmm5, 8
convertloop:
movdqu xmm0, [eax]
movdqu xmm1, [eax + 16]
lea eax, [eax + 32]
pand xmm0, xmm5 // even bytes are Y
pand xmm1, xmm5
packuswb xmm0, xmm1
movdqu [edx], xmm0
lea edx, [edx + 16]
sub ecx, 16
ja convertloop
ret
}
}
__declspec(naked)
void YUY2ToI420RowUV_Unaligned_SSE2(const uint8* src_yuy2, int stride_yuy2,
uint8* dst_u, uint8* dst_y, int pix) {
__asm {
push esi
push edi
mov eax, [esp + 8 + 4] // src_yuy2
mov esi, [esp + 8 + 8] // stride_yuy2
mov edx, [esp + 8 + 12] // dst_u
mov edi, [esp + 8 + 16] // dst_v
mov ecx, [esp + 8 + 20] // pix
pcmpeqb xmm5, xmm5 // generate mask 0x00ff00ff
psrlw xmm5, 8
sub edi, edx
convertloop:
movdqu xmm0, [eax]
movdqu xmm1, [eax + 16]
movdqu xmm2, [eax + esi]
movdqu xmm3, [eax + esi + 16]
lea eax, [eax + 32]
pavgb xmm0, xmm2
pavgb xmm1, xmm3
psrlw xmm0, 8 // YUYV -> UVUV
psrlw xmm1, 8
packuswb xmm0, xmm1
movdqa xmm1, xmm0
pand xmm0, xmm5 // U
packuswb xmm0, xmm0
psrlw xmm1, 8 // V psrlw xmm1, 8 // V
packuswb xmm1, xmm1 packuswb xmm1, xmm1
movq qword ptr [edi], xmm1 movq qword ptr [edx], xmm0
lea edi, [edi + 8] movq qword ptr [edx + edi], xmm1
lea edx, [edx + 8]
sub ecx, 16 sub ecx, 16
ja convertloop ja convertloop
...@@ -995,6 +1063,7 @@ void UYVYToI420RowUV_SSE2(const uint8* src_uyvy, int stride_uyvy, ...@@ -995,6 +1063,7 @@ void UYVYToI420RowUV_SSE2(const uint8* src_uyvy, int stride_uyvy,
mov ecx, [esp + 8 + 20] // pix mov ecx, [esp + 8 + 20] // pix
pcmpeqb xmm5, xmm5 // generate mask 0x00ff00ff pcmpeqb xmm5, xmm5 // generate mask 0x00ff00ff
psrlw xmm5, 8 psrlw xmm5, 8
sub edi, edx
convertloop: convertloop:
movdqa xmm0, [eax] movdqa xmm0, [eax]
...@@ -1010,12 +1079,11 @@ void UYVYToI420RowUV_SSE2(const uint8* src_uyvy, int stride_uyvy, ...@@ -1010,12 +1079,11 @@ void UYVYToI420RowUV_SSE2(const uint8* src_uyvy, int stride_uyvy,
movdqa xmm1, xmm0 movdqa xmm1, xmm0
pand xmm0, xmm5 // U pand xmm0, xmm5 // U
packuswb xmm0, xmm0 packuswb xmm0, xmm0
movq qword ptr [edx], xmm0
lea edx, [edx + 8]
psrlw xmm1, 8 // V psrlw xmm1, 8 // V
packuswb xmm1, xmm1 packuswb xmm1, xmm1
movq qword ptr [edi], xmm1 movq qword ptr [edx], xmm0
lea edi, [edi + 8] movq qword ptr [edx + edi], xmm1
lea edx, [edx + 8]
sub ecx, 16 sub ecx, 16
ja convertloop ja convertloop
...@@ -1060,6 +1128,7 @@ static void YUY2ToI420RowUV_SSE2(const uint8* src_yuy2, int stride_yuy2, ...@@ -1060,6 +1128,7 @@ static void YUY2ToI420RowUV_SSE2(const uint8* src_yuy2, int stride_yuy2,
asm volatile ( asm volatile (
"pcmpeqb %%xmm5,%%xmm5 \n" "pcmpeqb %%xmm5,%%xmm5 \n"
"psrlw $0x8,%%xmm5 \n" "psrlw $0x8,%%xmm5 \n"
"sub %1,%2 \n"
"1: \n" "1: \n"
"movdqa (%0),%%xmm0 \n" "movdqa (%0),%%xmm0 \n"
"movdqa 0x10(%0),%%xmm1 \n" "movdqa 0x10(%0),%%xmm1 \n"
...@@ -1074,12 +1143,78 @@ static void YUY2ToI420RowUV_SSE2(const uint8* src_yuy2, int stride_yuy2, ...@@ -1074,12 +1143,78 @@ static void YUY2ToI420RowUV_SSE2(const uint8* src_yuy2, int stride_yuy2,
"movdqa %%xmm0,%%xmm1 \n" "movdqa %%xmm0,%%xmm1 \n"
"pand %%xmm5,%%xmm0 \n" "pand %%xmm5,%%xmm0 \n"
"packuswb %%xmm0,%%xmm0 \n" "packuswb %%xmm0,%%xmm0 \n"
"psrlw $0x8,%%xmm1 \n"
"packuswb %%xmm1,%%xmm1 \n"
"movq %%xmm0,(%1) \n" "movq %%xmm0,(%1) \n"
"movq %%xmm1,(%1,%2) \n"
"lea 0x8(%1),%1 \n" "lea 0x8(%1),%1 \n"
"sub $0x10,%3 \n"
"ja 1b \n"
: "+r"(src_yuy2), // %0
"+r"(dst_u), // %1
"+r"(dst_y), // %2
"+r"(pix) // %3
: "r"(static_cast<intptr_t>(stride_yuy2)) // %4
: "memory", "cc"
#if defined(__SSE2__)
, "xmm0", "xmm1", "xmm2", "xmm3", "xmm5"
#endif
);
}
static void YUY2ToI420RowY_Unaligned_SSE2(const uint8* src_yuy2,
uint8* dst_y, int pix) {
asm volatile (
"pcmpeqb %%xmm5,%%xmm5 \n"
"psrlw $0x8,%%xmm5 \n"
"1: \n"
"movdqu (%0),%%xmm0 \n"
"movdqu 0x10(%0),%%xmm1 \n"
"lea 0x20(%0),%0 \n"
"pand %%xmm5,%%xmm0 \n"
"pand %%xmm5,%%xmm1 \n"
"packuswb %%xmm1,%%xmm0 \n"
"movdqu %%xmm0,(%1) \n"
"lea 0x10(%1),%1 \n"
"sub $0x10,%2 \n"
"ja 1b \n"
: "+r"(src_yuy2), // %0
"+r"(dst_y), // %1
"+r"(pix) // %2
:
: "memory", "cc"
#if defined(__SSE2__)
, "xmm0", "xmm1", "xmm5"
#endif
);
}
static void YUY2ToI420RowUV_Unaligned_SSE2(const uint8* src_yuy2,
int stride_yuy2,
uint8* dst_u, uint8* dst_y,
int pix) {
asm volatile (
"pcmpeqb %%xmm5,%%xmm5 \n"
"psrlw $0x8,%%xmm5 \n"
"sub %1,%2 \n"
"1: \n"
"movdqu (%0),%%xmm0 \n"
"movdqu 0x10(%0),%%xmm1 \n"
"movdqu (%0,%4,1),%%xmm2 \n"
"movdqu 0x10(%0,%4,1),%%xmm3 \n"
"lea 0x20(%0),%0 \n"
"pavgb %%xmm2,%%xmm0 \n"
"pavgb %%xmm3,%%xmm1 \n"
"psrlw $0x8,%%xmm0 \n"
"psrlw $0x8,%%xmm1 \n"
"packuswb %%xmm1,%%xmm0 \n"
"movdqa %%xmm0,%%xmm1 \n"
"pand %%xmm5,%%xmm0 \n"
"packuswb %%xmm0,%%xmm0 \n"
"psrlw $0x8,%%xmm1 \n" "psrlw $0x8,%%xmm1 \n"
"packuswb %%xmm1,%%xmm1 \n" "packuswb %%xmm1,%%xmm1 \n"
"movq %%xmm1,(%2) \n" "movq %%xmm0,(%1) \n"
"lea 0x8(%2),%2 \n" "movq %%xmm1,(%1,%2) \n"
"lea 0x8(%1),%1 \n"
"sub $0x10,%3 \n" "sub $0x10,%3 \n"
"ja 1b \n" "ja 1b \n"
: "+r"(src_yuy2), // %0 : "+r"(src_yuy2), // %0
...@@ -1124,6 +1259,7 @@ static void UYVYToI420RowUV_SSE2(const uint8* src_uyvy, int stride_uyvy, ...@@ -1124,6 +1259,7 @@ static void UYVYToI420RowUV_SSE2(const uint8* src_uyvy, int stride_uyvy,
asm volatile ( asm volatile (
"pcmpeqb %%xmm5,%%xmm5 \n" "pcmpeqb %%xmm5,%%xmm5 \n"
"psrlw $0x8,%%xmm5 \n" "psrlw $0x8,%%xmm5 \n"
"sub %1,%2 \n"
"1: \n" "1: \n"
"movdqa (%0),%%xmm0 \n" "movdqa (%0),%%xmm0 \n"
"movdqa 0x10(%0),%%xmm1 \n" "movdqa 0x10(%0),%%xmm1 \n"
...@@ -1138,12 +1274,11 @@ static void UYVYToI420RowUV_SSE2(const uint8* src_uyvy, int stride_uyvy, ...@@ -1138,12 +1274,11 @@ static void UYVYToI420RowUV_SSE2(const uint8* src_uyvy, int stride_uyvy,
"movdqa %%xmm0,%%xmm1 \n" "movdqa %%xmm0,%%xmm1 \n"
"pand %%xmm5,%%xmm0 \n" "pand %%xmm5,%%xmm0 \n"
"packuswb %%xmm0,%%xmm0 \n" "packuswb %%xmm0,%%xmm0 \n"
"movq %%xmm0,(%1) \n"
"lea 0x8(%1),%1 \n"
"psrlw $0x8,%%xmm1 \n" "psrlw $0x8,%%xmm1 \n"
"packuswb %%xmm1,%%xmm1 \n" "packuswb %%xmm1,%%xmm1 \n"
"movq %%xmm1,(%2) \n" "movq %%xmm0,(%1) \n"
"lea 0x8(%2),%2 \n" "movq %%xmm1,(%1,%2) \n"
"lea 0x8(%1),%1 \n"
"sub $0x10,%3 \n" "sub $0x10,%3 \n"
"ja 1b \n" "ja 1b \n"
: "+r"(src_uyvy), // %0 : "+r"(src_uyvy), // %0
...@@ -1221,14 +1356,18 @@ int YUY2ToI420(const uint8* src_yuy2, int src_stride_yuy2, ...@@ -1221,14 +1356,18 @@ int YUY2ToI420(const uint8* src_yuy2, int src_stride_yuy2,
void (*YUY2ToI420RowY)(const uint8* src_yuy2, void (*YUY2ToI420RowY)(const uint8* src_yuy2,
uint8* dst_y, int pix); uint8* dst_y, int pix);
#if defined(HAS_YUY2TOI420ROW_SSE2) #if defined(HAS_YUY2TOI420ROW_SSE2)
if (TestCpuFlag(kCpuHasSSE2) && if (TestCpuFlag(kCpuHasSSE2) && IS_ALIGNED(width, 16)) {
IS_ALIGNED(width, 16) && if (IS_ALIGNED(src_yuy2, 16) && IS_ALIGNED(src_stride_yuy2, 16)) {
IS_ALIGNED(src_yuy2, 16) && IS_ALIGNED(src_stride_yuy2, 16) && YUY2ToI420RowUV = YUY2ToI420RowUV_SSE2;
IS_ALIGNED(dst_y, 16) && IS_ALIGNED(dst_stride_y, 16) && } else {
IS_ALIGNED(dst_u, 8) && IS_ALIGNED(dst_stride_u, 8) && YUY2ToI420RowUV = YUY2ToI420RowUV_Unaligned_SSE2;
IS_ALIGNED(dst_v, 8) && IS_ALIGNED(dst_stride_v, 8)) { }
YUY2ToI420RowY = YUY2ToI420RowY_SSE2; if (IS_ALIGNED(src_yuy2, 16) && IS_ALIGNED(src_stride_yuy2, 16) &&
YUY2ToI420RowUV = YUY2ToI420RowUV_SSE2; IS_ALIGNED(dst_y, 16) && IS_ALIGNED(dst_stride_y, 16)) {
YUY2ToI420RowY = YUY2ToI420RowY_SSE2;
} else {
YUY2ToI420RowY = YUY2ToI420RowY_Unaligned_SSE2;
}
} else } else
#endif #endif
{ {
......
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