coffee/libyuv
1
0
Fork 0
mirror of https://chromium.googlesource.com/libyuv/libyuv synced 2025-12-08 01:36:47 +08:00
Code Issues Packages Projects Releases Wiki Activity

Make I411ToARGB read 2 bytes to avoid overread.

Browse Source 
BUG=262
TESTED=I411ToARGB
R=kjellander@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/2278004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@799 16f28f9a-4ce2-e073-06de-1de4eb20be90
This commit is contained in:
fbarchard@google.com 2013-09-24 10:07:16 +00:00
parent 07c3fe2f61
commit 47e856c632
2 changed files with 22 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
source/row_win.cc
View File

@ -2220,7 +2220,7 @@ static const vec16 kUVBiasR = { BR, BR, BR, BR, BR, BR, BR, BR };
// TODO(fbarchard): Read that does half size on Y and treats 420 as 444.
// Read 8 UV from 411.
// Read 8 UV from 444.
#define READYUV444 __asm { \
__asm movq xmm0, qword ptr [esi] /* U */ /* NOLINT */ \
__asm movq xmm1, qword ptr [esi + edi] /* V */ /* NOLINT */ \
@ -2239,8 +2239,10 @@ static const vec16 kUVBiasR = { BR, BR, BR, BR, BR, BR, BR, BR };
// Read 2 UV from 411, upsample to 8 UV.
#define READYUV411 __asm { \
__asm movd xmm0, [esi] /* U */ \
__asm movd xmm1, [esi + edi] /* V */ \
__asm movzx ebx, word ptr [esi] /* U */ \
__asm movd xmm0, ebx \
__asm movzx ebx, word ptr [esi + edi] /* V */ \
__asm movd xmm1, ebx \
__asm lea esi, [esi + 2] \
__asm punpcklbw xmm0, xmm1 /* UV */ \
__asm punpcklwd xmm0, xmm0 /* UVUV (upsample) */ \
@ -2573,20 +2575,21 @@ void I411ToARGBRow_SSSE3(const uint8* y_buf,
uint8* dst_argb,
int width) {
__asm {
push ebx
push esi
push edi
mov eax, [esp + 8 + 4] // Y
mov esi, [esp + 8 + 8] // U
mov edi, [esp + 8 + 12] // V
mov edx, [esp + 8 + 16] // argb
mov ecx, [esp + 8 + 20] // width
mov eax, [esp + 12 + 4] // Y
mov esi, [esp + 12 + 8] // U
mov edi, [esp + 12 + 12] // V
mov edx, [esp + 12 + 16] // argb
mov ecx, [esp + 12 + 20] // width
sub edi, esi
pcmpeqb xmm5, xmm5 // generate 0xffffffff for alpha
pxor xmm4, xmm4
align 16
convertloop:
READYUV411
READYUV411 // modifies EBX
YUVTORGB
// Step 3: Weave into ARGB
@ -2603,6 +2606,7 @@ void I411ToARGBRow_SSSE3(const uint8* y_buf,
pop edi
pop esi
pop ebx
ret
}
}
@ -2779,20 +2783,21 @@ void I411ToARGBRow_Unaligned_SSSE3(const uint8* y_buf,
uint8* dst_argb,
int width) {
__asm {
push ebx
push esi
push edi
mov eax, [esp + 8 + 4] // Y
mov esi, [esp + 8 + 8] // U
mov edi, [esp + 8 + 12] // V
mov edx, [esp + 8 + 16] // argb
mov ecx, [esp + 8 + 20] // width
mov eax, [esp + 12 + 4] // Y
mov esi, [esp + 12 + 8] // U
mov edi, [esp + 12 + 12] // V
mov edx, [esp + 12 + 16] // argb
mov ecx, [esp + 12 + 20] // width
sub edi, esi
pcmpeqb xmm5, xmm5 // generate 0xffffffff for alpha
pxor xmm4, xmm4
align 16
convertloop:
READYUV411
READYUV411 // modifies EBX
YUVTORGB
// Step 3: Weave into ARGB
@ -2809,6 +2814,7 @@ void I411ToARGBRow_Unaligned_SSSE3(const uint8* y_buf,
pop edi
pop esi
pop ebx
ret
}
}

3
unit_test/convert_test.cc
View File

@ -480,8 +480,7 @@ TESTPLANARTOB(I422, 2, 1, ARGB, 4, 4, 2, ARGB, 4)
TESTPLANARTOB(I422, 2, 1, BGRA, 4, 4, 2, ARGB, 4)
TESTPLANARTOB(I422, 2, 1, ABGR, 4, 4, 2, ARGB, 4)
TESTPLANARTOB(I422, 2, 1, RGBA, 4, 4, 2, ARGB, 4)
// TODO(fbarchard): Fix DrMemory failure in I411ToARGBRow_SSSE3.
// TESTPLANARTOB(I411, 4, 1, ARGB, 4, 4, 2, ARGB, 4)
TESTPLANARTOB(I411, 4, 1, ARGB, 4, 4, 2, ARGB, 4)
TESTPLANARTOB(I444, 1, 1, ARGB, 4, 4, 2, ARGB, 4)
TESTPLANARTOB(I420, 2, 2, YUY2, 2, 4, 1, ARGB, 4)
TESTPLANARTOB(I420, 2, 2, UYVY, 2, 4, 1, ARGB, 4)