coffee/libyuv
1
0
Fork 0
mirror of https://chromium.googlesource.com/libyuv/libyuv synced 2025-12-06 16:56:55 +08:00
Code Issues Packages Projects Releases Wiki Activity

Neon optimized argb filter row for bilinear scale and Effects Interpolate.

Browse Source 
BUG=none
TEST=./libyuv_unittest --gtest_filter=*ARGBScale*
Review URL: https://webrtc-codereview.appspot.com/964017

git-svn-id: http://libyuv.googlecode.com/svn/trunk@497 16f28f9a-4ce2-e073-06de-1de4eb20be90
This commit is contained in:
fbarchard@google.com 2012-11-20 09:44:46 +00:00
parent 958a0b0c19
commit b5491759b4
8 changed files with 451 additions and 55 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
include/libyuv/row.h
View File

@ -217,6 +217,9 @@ extern "C" {
#define HAS_YUY2TOUVROW_NEON
#define HAS_YUY2TOYROW_NEON
#define HAS_ARGBMIRRORROW_NEON
// Effects
#define HAS_ARGBINTERPOLATEROW_NEON
#endif
// The following are available on Mips platforms
@ -1241,6 +1244,9 @@ void ARGBInterpolateRow_C(uint8* dst_argb, const uint8* src_argb,
void ARGBInterpolateRow_SSSE3(uint8* dst_argb, const uint8* src_argb,
ptrdiff_t src_stride_argb, int dst_width,
int source_y_fraction);
void ARGBInterpolateRow_NEON(uint8* dst_argb, const uint8* src_argb,
ptrdiff_t src_stride_argb, int dst_width,
int source_y_fraction);
#ifdef __cplusplus
} // extern "C"

12
source/planar_functions.cc
View File

@ -1121,6 +1121,9 @@ int ARGBShade(const uint8* src_argb, int src_stride_argb,
}
// Interpolate 2 ARGB images by specified amount (0 to 255).
// TODO(fbarchard): Check width is multiple of 16. Do Any version.
// TODO(fbarchard): Consider selecting a specialized interpolator so
// interpolation doesn't need to be checked on each row.
LIBYUV_API
int ARGBInterpolate(const uint8* src_argb0, int src_stride_argb0,
const uint8* src_argb1, int src_stride_argb1,
@ -1136,8 +1139,8 @@ int ARGBInterpolate(const uint8* src_argb0, int src_stride_argb0,
dst_stride_argb = -dst_stride_argb;
}
void (*ARGBInterpolateRow)(uint8* dst_ptr, const uint8* src_ptr,
ptrdiff_t src_stride, int dst_width,
int source_y_fraction) = ARGBInterpolateRow_C;
ptrdiff_t src_stride, int dst_width,
int source_y_fraction) = ARGBInterpolateRow_C;
#if defined(HAS_ARGBINTERPOLATEROW_SSSE3)
if (TestCpuFlag(kCpuHasSSSE3) &&
IS_ALIGNED(src_argb0, 16) && IS_ALIGNED(src_stride_argb0, 16) &&
@ -1145,6 +1148,11 @@ int ARGBInterpolate(const uint8* src_argb0, int src_stride_argb0,
IS_ALIGNED(dst_argb, 16) && IS_ALIGNED(dst_stride_argb, 16)) {
ARGBInterpolateRow = ARGBInterpolateRow_SSSE3;
}
#elif defined(HAS_ARGBINTERPOLATEROW_NEON)
if (TestCpuFlag(kCpuHasNEON) &&
IS_ALIGNED(dst_argb, 4) && IS_ALIGNED(dst_stride_argb, 4)) {
ARGBInterpolateRow = ARGBInterpolateRow_NEON;
}
#endif
for (int y = 0; y < height; ++y) {
ARGBInterpolateRow(dst_argb, src_argb0, src_argb1 - src_argb0,

83
source/row_neon.cc
View File

@ -2275,6 +2275,89 @@ void RAWToYRow_NEON(const uint8* src_raw, uint8* dst_y, int pix) {
}
#endif // HAS_RAWTOYROW_NEON
// 4x2 -> 4x1
// Same as ScaleARGBFilterRows_NEON but with last pixel not duplicated.
void ARGBInterpolateRow_NEON(uint8* dst_ptr,
const uint8* src_ptr, ptrdiff_t src_stride,
int dst_width, int source_y_fraction) {
asm volatile (
"cmp %4, #0 \n"
"beq 100f \n"
"add %2, %1 \n"
"cmp %4, #64 \n"
"beq 75f \n"
"cmp %4, #128 \n"
"beq 50f \n"
"cmp %4, #192 \n"
"beq 25f \n"
"vdup.8 d5, %4 \n"
"rsb %4, #256 \n"
"vdup.8 d4, %4 \n"
// General purpose row blend.
"1: \n"
"vld1.u8 {q0}, [%1]! \n"
"vld1.u8 {q1}, [%2]! \n"
"subs %3, #4 \n"
"vmull.u8 q13, d0, d4 \n"
"vmull.u8 q14, d1, d4 \n"
"vmlal.u8 q13, d2, d5 \n"
"vmlal.u8 q14, d3, d5 \n"
"vrshrn.u16 d0, q13, #8 \n"
"vrshrn.u16 d1, q14, #8 \n"
"vst1.u8 {q0}, [%0]! \n"
"bgt 1b \n"
"b 99f \n"
// Blend 25 / 75.
"25: \n"
"vld1.u8 {q0}, [%1]! \n"
"vld1.u8 {q1}, [%2]! \n"
"subs %3, #4 \n"
"vrhadd.u8 q0, q1 \n"
"vrhadd.u8 q0, q1 \n"
"vst1.u8 {q0}, [%0]! \n"
"bgt 25b \n"
"b 99f \n"
// Blend 50 / 50.
"50: \n"
"vld1.u8 {q0}, [%1]! \n"
"vld1.u8 {q1}, [%2]! \n"
"subs %3, #4 \n"
"vrhadd.u8 q0, q1 \n"
"vst1.u8 {q0}, [%0]! \n"
"bgt 50b \n"
"b 99f \n"
// Blend 75 / 25.
"75: \n"
"vld1.u8 {q1}, [%1]! \n"
"vld1.u8 {q0}, [%2]! \n"
"subs %3, #4 \n"
"vrhadd.u8 q0, q1 \n"
"vrhadd.u8 q0, q1 \n"
"vst1.u8 {q0}, [%0]! \n"
"bgt 75b \n"
"b 99f \n"
// Blend 100 / 0 - Copy row unchanged.
"100: \n"
"vld1.u8 {q0}, [%1]! \n"
"subs %3, #4 \n"
"vst1.u8 {q0}, [%0]! \n"
"bgt 100b \n"
"99: \n"
: "+r"(dst_ptr), // %0
"+r"(src_ptr), // %1
"+r"(src_stride), // %2
"+r"(dst_width), // %3
"+r"(source_y_fraction) // %4
:
: "q0", "q1", "d4", "d5", "q13", "q14", "memory", "cc"
);
}
#endif // __ARM_NEON__
#ifdef __cplusplus

83
source/row_posix.cc
View File

@ -4241,17 +4241,23 @@ void ARGBAffineRow_SSE2(const uint8* src_argb, int src_argb_stride,
}
#endif // HAS_ARGBAFFINEROW_SSE2
// Bilinear row filtering combines 4x2 -> 4x1. SSSE3 version
void ARGBInterpolateRow_SSSE3(uint8* dst_ptr, const uint8* src_ptr,
// Bilinear image filtering.
// Same as ScaleARGBFilterRows_SSSE3 but without last pixel duplicated.
void ARGBInterpolateRow_SSSE3(uint8* dst_argb, const uint8* src_argb,
ptrdiff_t src_stride, int dst_width,
int source_y_fraction) {
asm volatile (
"sub %1,%0 \n"
"shr %3 \n"
"cmp $0x0,%3 \n"
"je 2f \n"
"je 100f \n"
"cmp $0x20,%3 \n"
"je 75f \n"
"cmp $0x40,%3 \n"
"je 3f \n"
"je 50f \n"
"cmp $0x60,%3 \n"
"je 25f \n"
"movd %3,%%xmm0 \n"
"neg %3 \n"
"add $0x80,%3 \n"
@ -4259,6 +4265,8 @@ void ARGBInterpolateRow_SSSE3(uint8* dst_ptr, const uint8* src_ptr,
"punpcklbw %%xmm0,%%xmm5 \n"
"punpcklwd %%xmm5,%%xmm5 \n"
"pshufd $0x0,%%xmm5,%%xmm5 \n"
// General purpose row blend.
".p2align 4 \n"
"1: \n"
"movdqa (%1),%%xmm0 \n"
@ -4275,28 +4283,60 @@ void ARGBInterpolateRow_SSSE3(uint8* dst_ptr, const uint8* src_ptr,
"movdqa %%xmm0,(%1,%0,1) \n"
"lea 0x10(%1),%1 \n"
"jg 1b \n"
"jmp 4f \n"
"jmp 99f \n"
// Blend 25 / 75.
".p2align 4 \n"
"2: \n"
"25: \n"
"movdqa (%1),%%xmm0 \n"
"movdqa (%1,%4,1),%%xmm1 \n"
"pavgb %%xmm1,%%xmm0 \n"
"pavgb %%xmm1,%%xmm0 \n"
"sub $0x4,%2 \n"
"movdqa %%xmm0,(%1,%0,1) \n"
"lea 0x10(%1),%1 \n"
"jg 25b \n"
"jmp 99f \n"
// Blend 50 / 50.
".p2align 4 \n"
"50: \n"
"movdqa (%1),%%xmm0 \n"
"movdqa (%1,%4,1),%%xmm1 \n"
"pavgb %%xmm1,%%xmm0 \n"
"sub $0x4,%2 \n"
"movdqa %%xmm0,(%1,%0,1) \n"
"lea 0x10(%1),%1 \n"
"jg 50b \n"
"jmp 99f \n"
// Blend 75 / 25.
".p2align 4 \n"
"75: \n"
"movdqa (%1),%%xmm1 \n"
"movdqa (%1,%4,1),%%xmm0 \n"
"pavgb %%xmm1,%%xmm0 \n"
"pavgb %%xmm1,%%xmm0 \n"
"sub $0x4,%2 \n"
"movdqa %%xmm0,(%1,%0,1) \n"
"lea 0x10(%1),%1 \n"
"jg 75b \n"
"jmp 99f \n"
// Blend 100 / 0 - Copy row unchanged.
".p2align 4 \n"
"100: \n"
"movdqa (%1),%%xmm0 \n"
"sub $0x4,%2 \n"
"movdqa %%xmm0,(%1,%0,1) \n"
"lea 0x10(%1),%1 \n"
"jg 2b \n"
"jmp 4f \n"
".p2align 4 \n"
"3: \n"
"movdqa (%1),%%xmm0 \n"
"pavgb (%1,%4,1),%%xmm0 \n"
"sub $0x4,%2 \n"
"movdqa %%xmm0,(%1,%0,1) \n"
"lea 0x10(%1),%1 \n"
"jg 3b \n"
"4: \n"
".p2align 4 \n"
: "+r"(dst_ptr), // %0
"+r"(src_ptr), // %1
"+r"(dst_width), // %2
"jg 100b \n"
// Extrude last pixel.
"99: \n"
: "+r"(dst_argb), // %0
"+r"(src_argb), // %1
"+r"(dst_width), // %2
"+r"(source_y_fraction) // %3
: "r"(static_cast<intptr_t>(src_stride)) // %4
: "memory", "cc"
@ -4306,6 +4346,7 @@ void ARGBInterpolateRow_SSSE3(uint8* dst_ptr, const uint8* src_ptr,
);
}
void HalfRow_SSE2(const uint8* src_uv, int src_uv_stride,
uint8* dst_uv, int pix) {
asm volatile (

87
source/row_win.cc
View File

@ -3580,8 +3580,8 @@ void ARGBBlendRow_SSSE3(const uint8* src_argb0, const uint8* src_argb1,
// 1 pixel loop until destination pointer is aligned.
alignloop1:
test edx, 15 // aligned?
je alignloop1b
// test edx, 15 // aligned?
// je alignloop1b
movd xmm3, [eax]
lea eax, [eax + 4]
movdqa xmm0, xmm3 // src argb
@ -4439,25 +4439,31 @@ void ARGBAffineRow_SSE2(const uint8* src_argb, int src_argb_stride,
}
#endif // HAS_ARGBAFFINEROW_SSE2
// Bilinear row filtering combines 4x2 -> 4x1. SSSE3 version.
// Bilinear image filtering.
// Same as ScaleARGBFilterRows_SSSE3 but without last pixel duplicated.
__declspec(naked) __declspec(align(16))
void ARGBInterpolateRow_SSSE3(uint8* dst_ptr, const uint8* src_ptr,
void ARGBInterpolateRow_SSSE3(uint8* dst_argb, const uint8* src_argb,
ptrdiff_t src_stride, int dst_width,
int source_y_fraction) {
__asm {
push esi
push edi
mov edi, [esp + 8 + 4] // dst_ptr
mov esi, [esp + 8 + 8] // src_ptr
mov edi, [esp + 8 + 4] // dst_argb
mov esi, [esp + 8 + 8] // src_argb
mov edx, [esp + 8 + 12] // src_stride
mov ecx, [esp + 8 + 16] // dst_width
mov eax, [esp + 8 + 20] // source_y_fraction (0..255)
sub edi, esi
shr eax, 1
cmp eax, 0
je xloop1
cmp eax, 0 // dispatch to specialized filters if applicable.
je xloop100
cmp eax, 32
je xloop75
cmp eax, 64
je xloop2
je xloop50
cmp eax, 96
je xloop25
movd xmm0, eax // high fraction 0..127
neg eax
add eax, 128
@ -4482,32 +4488,57 @@ void ARGBInterpolateRow_SSSE3(uint8* dst_ptr, const uint8* src_ptr,
movdqa [esi + edi], xmm0
lea esi, [esi + 16]
jg xloop
jmp xloop99
pop edi
pop esi
ret
// Blend 25 / 75.
align 16
xloop1:
xloop25:
movdqa xmm0, [esi]
movdqa xmm1, [esi + edx]
pavgb xmm0, xmm1
pavgb xmm0, xmm1
sub ecx, 4
movdqa [esi + edi], xmm0
lea esi, [esi + 16]
jg xloop25
jmp xloop99
// Blend 50 / 50.
align 16
xloop50:
movdqa xmm0, [esi]
movdqa xmm1, [esi + edx]
pavgb xmm0, xmm1
sub ecx, 4
movdqa [esi + edi], xmm0
lea esi, [esi + 16]
jg xloop50
jmp xloop99
// Blend 75 / 25.
align 16
xloop75:
movdqa xmm1, [esi]
movdqa xmm0, [esi + edx]
pavgb xmm0, xmm1
pavgb xmm0, xmm1
sub ecx, 4
movdqa [esi + edi], xmm0
lea esi, [esi + 16]
jg xloop75
jmp xloop99
// Blend 100 / 0 - Copy row unchanged.
align 16
xloop100:
movdqa xmm0, [esi]
sub ecx, 4
movdqa [esi + edi], xmm0
lea esi, [esi + 16]
jg xloop1
pop edi
pop esi
ret
align 16
xloop2:
movdqa xmm0, [esi]
pavgb xmm0, [esi + edx]
sub ecx, 4
movdqa [esi + edi], xmm0
lea esi, [esi + 16]
jg xloop2
jg xloop100
// Extrude last pixel.
xloop99:
pop edi
pop esi
ret

15
source/scale_argb.cc
View File

@ -30,20 +30,21 @@ extern "C" {
#if !defined(YUV_DISABLE_ASM) && (defined(__ARM_NEON__) || defined(LIBYUV_NEON))
#define HAS_SCALEARGBROWDOWNEVEN_NEON
#define HAS_SCALEARGBROWDOWN2_NEON
#define HAS_SCALEARGBFILTERROWS_NEON
void ScaleARGBRowDownEven_NEON(const uint8* src_argb, int src_stride,
int src_stepx,
uint8* dst_argb, int dst_width);
void ScaleARGBRowDownEvenInt_NEON(const uint8* src_argb, int src_stride,
int src_stepx,
uint8* dst_argb, int dst_width);
#define HAS_SCALEARGBROWDOWN2_NEON
void ScaleARGBRowDown2_NEON(const uint8* src_ptr, ptrdiff_t /* src_stride */,
uint8* dst, int dst_width);
void ScaleARGBRowDown2Int_NEON(const uint8* src_ptr, ptrdiff_t src_stride,
uint8* dst, int dst_width);
void ScaleARGBFilterRows_NEON(uint8* dst_ptr,
const uint8* src_ptr, ptrdiff_t src_stride,
int dst_width, int source_y_fraction);
#endif
/**
@ -964,6 +965,7 @@ static void ScaleARGBBilinear(int src_width, int src_height,
ptrdiff_t src_stride,
int dst_width, int source_y_fraction) =
ScaleARGBFilterRows_C;
// TODO(fbarchard): Check aligned width.
#if defined(HAS_SCALEARGBFILTERROWS_SSE2)
if (TestCpuFlag(kCpuHasSSE2) &&
IS_ALIGNED(src_stride, 16) && IS_ALIGNED(src_argb, 16)) {
@ -975,6 +977,11 @@ static void ScaleARGBBilinear(int src_width, int src_height,
IS_ALIGNED(src_stride, 16) && IS_ALIGNED(src_argb, 16)) {
ScaleARGBFilterRows = ScaleARGBFilterRows_SSSE3;
}
#endif
#if defined(HAS_SCALEARGBFILTERROWS_NEON)
if (TestCpuFlag(kCpuHasNEON)) {
ScaleARGBFilterRows = ScaleARGBFilterRows_NEON;
}
#endif
int dx = (src_width << 16) / dst_width;
int dy = (src_height << 16) / dst_height;

84
source/scale_argb_neon.cc
View File

@ -136,6 +136,90 @@ void ScaleARGBRowDownEvenInt_NEON(const uint8* src_argb, ptrdiff_t src_stride,
: "memory", "cc", "r12", "q0", "q1", "q2", "q3"
);
}
// 4x2 -> 4x1
void ScaleARGBFilterRows_NEON(uint8* dst_ptr,
const uint8* src_ptr, ptrdiff_t src_stride,
int dst_width, int source_y_fraction) {
asm volatile (
"cmp %4, #0 \n"
"beq 100f \n"
"add %2, %1 \n"
"cmp %4, #64 \n"
"beq 75f \n"
"cmp %4, #128 \n"
"beq 50f \n"
"cmp %4, #192 \n"
"beq 25f \n"
"vdup.8 d5, %4 \n"
"rsb %4, #256 \n"
"vdup.8 d4, %4 \n"
// General purpose row blend.
"1: \n"
"vld1.u8 {q0}, [%1]! \n"
"vld1.u8 {q1}, [%2]! \n"
"subs %3, #4 \n"
"vmull.u8 q13, d0, d4 \n"
"vmull.u8 q14, d1, d4 \n"
"vmlal.u8 q13, d2, d5 \n"
"vmlal.u8 q14, d3, d5 \n"
"vrshrn.u16 d0, q13, #8 \n"
"vrshrn.u16 d1, q14, #8 \n"
"vst1.u8 {q0}, [%0]! \n"
"bgt 1b \n"
"b 99f \n"
// Blend 25 / 75.
"25: \n"
"vld1.u8 {q0}, [%1]! \n"
"vld1.u8 {q1}, [%2]! \n"
"subs %3, #4 \n"
"vrhadd.u8 q0, q1 \n"
"vrhadd.u8 q0, q1 \n"
"vst1.u8 {q0}, [%0]! \n"
"bgt 25b \n"
"b 99f \n"
// Blend 50 / 50.
"50: \n"
"vld1.u8 {q0}, [%1]! \n"
"vld1.u8 {q1}, [%2]! \n"
"subs %3, #4 \n"
"vrhadd.u8 q0, q1 \n"
"vst1.u8 {q0}, [%0]! \n"
"bgt 50b \n"
"b 99f \n"
// Blend 75 / 25.
"75: \n"
"vld1.u8 {q1}, [%1]! \n"
"vld1.u8 {q0}, [%2]! \n"
"subs %3, #4 \n"
"vrhadd.u8 q0, q1 \n"
"vrhadd.u8 q0, q1 \n"
"vst1.u8 {q0}, [%0]! \n"
"bgt 75b \n"
"b 99f \n"
// Blend 100 / 0 - Copy row unchanged.
"100: \n"
"vld1.u8 {q0}, [%1]! \n"
"subs %3, #4 \n"
"vst1.u8 {q0}, [%0]! \n"
"bgt 100b \n"
"99: \n"
"vst1.u32 {d1[1]}, [%0] \n"
: "+r"(dst_ptr), // %0
"+r"(src_ptr), // %1
"+r"(src_stride), // %2
"+r"(dst_width), // %3
"+r"(source_y_fraction) // %4
:
: "q0", "q1", "d4", "d5", "q13", "q14", "memory", "cc"
);
}
#endif // __ARM_NEON__
#ifdef __cplusplus

136
unit_test/planar_test.cc
View File

@ -585,6 +585,142 @@ TEST_F(libyuvTest, TestInterpolate) {
}
}
#define TESTTERP(FMT_A, BPP_A, STRIDE_A, \
FMT_B, BPP_B, STRIDE_B, \
W1280, TERP, DIFF, N, NEG, OFF) \
TEST_F(libyuvTest, ARGBInterpolate##TERP##N) { \
const int kWidth = W1280; \
const int kHeight = benchmark_height_; \
const int kStrideA = (kWidth * BPP_A + STRIDE_A - 1) / STRIDE_A * STRIDE_A; \
const int kStrideB = (kWidth * BPP_B + STRIDE_B - 1) / STRIDE_B * STRIDE_B; \
align_buffer_64(src_argb_a, kStrideA * kHeight + OFF); \
align_buffer_64(src_argb_b, kStrideA * kHeight + OFF); \
align_buffer_64(dst_argb_c, kStrideB * kHeight); \
align_buffer_64(dst_argb_opt, kStrideB * kHeight); \
srandom(time(NULL)); \
for (int i = 0; i < kStrideA * kHeight; ++i) { \
src_argb_a[i + OFF] = (random() & 0xff); \
src_argb_b[i + OFF] = (random() & 0xff); \
} \
MaskCpuFlags(0); \
ARGBInterpolate(src_argb_a + OFF, kStrideA, \
src_argb_b + OFF, kStrideA, \
dst_argb_c, kStrideB, \
kWidth, NEG kHeight, TERP); \
MaskCpuFlags(-1); \
for (int i = 0; i < benchmark_iterations_; ++i) { \
ARGBInterpolate(src_argb_a + OFF, kStrideA, \
src_argb_b + OFF, kStrideA, \
dst_argb_opt, kStrideB, \
kWidth, NEG kHeight, TERP); \
} \
int max_diff = 0; \
for (int i = 0; i < kStrideB * kHeight; ++i) { \
int abs_diff = \
abs(static_cast<int>(dst_argb_c[i]) - \
static_cast<int>(dst_argb_opt[i])); \
if (abs_diff > max_diff) { \
max_diff = abs_diff; \
} \
} \
EXPECT_LE(max_diff, DIFF); \
free_aligned_buffer_64(src_argb_a) \
free_aligned_buffer_64(src_argb_b) \
free_aligned_buffer_64(dst_argb_c) \
free_aligned_buffer_64(dst_argb_opt) \
}
#define TESTINTERPOLATE(TERP) \
TESTTERP(ARGB, 4, 1, ARGB, 4, 1, \
benchmark_width_ - 4, TERP, 1, _Any, +, 0) \
TESTTERP(ARGB, 4, 1, ARGB, 4, 1, \
benchmark_width_, TERP, 1, _Unaligned, +, 1) \
TESTTERP(ARGB, 4, 1, ARGB, 4, 1, \
benchmark_width_, TERP, 1, _Invert, -, 0) \
TESTTERP(ARGB, 4, 1, ARGB, 4, 1, \
benchmark_width_, TERP, 1, _Opt, +, 0)
TESTINTERPOLATE(0)
TESTINTERPOLATE(64)
TESTINTERPOLATE(128)
TESTINTERPOLATE(192)
TESTINTERPOLATE(255)
static int TestBlend(int kWidth, int kHeight, int benchmark_iterations,
int NEG, int OFF) {
const int BPP_A = 4;
const int STRIDE_A = 1;
const int BPP_B = 4;
const int STRIDE_B = 1;
const int kStrideA = (kWidth * BPP_A + STRIDE_A - 1) / STRIDE_A * STRIDE_A;
const int kStrideB = (kWidth * BPP_B + STRIDE_B - 1) / STRIDE_B * STRIDE_B;
align_buffer_64(src_argb_a, kStrideA * kHeight + OFF);
align_buffer_64(src_argb_b, kStrideA * kHeight + OFF);
align_buffer_64(dst_argb_c, kStrideB * kHeight);
align_buffer_64(dst_argb_opt, kStrideB * kHeight);
srandom(time(NULL));
for (int i = 0; i < kStrideA * kHeight; ++i) {
src_argb_a[i + OFF] = (random() & 0xff);
src_argb_b[i + OFF] = (random() & 0xff);
}
ARGBAttenuate(src_argb_a, kStrideA, src_argb_a, kStrideA, kWidth, kHeight);
ARGBAttenuate(src_argb_b, kStrideA, src_argb_b, kStrideA, kWidth, kHeight);
memset(dst_argb_c, 255, kStrideB * kHeight);
memset(dst_argb_opt, 255, kStrideB * kHeight);
MaskCpuFlags(0);
ARGBBlend(src_argb_a + OFF, kStrideA,
src_argb_b + OFF, kStrideA,
dst_argb_c, kStrideB,
kWidth, NEG * kHeight);
MaskCpuFlags(-1);
for (int i = 0; i < benchmark_iterations; ++i) {
ARGBBlend(src_argb_a + OFF, kStrideA,
src_argb_b + OFF, kStrideA,
dst_argb_opt, kStrideB,
kWidth, NEG * kHeight);
}
int max_diff = 0;
for (int i = 0; i < kStrideB * kHeight; ++i) {
int abs_diff =
abs(static_cast<int>(dst_argb_c[i]) -
static_cast<int>(dst_argb_opt[i]));
if (abs_diff > max_diff) {
max_diff = abs_diff;
}
}
free_aligned_buffer_64(src_argb_a)
free_aligned_buffer_64(src_argb_b)
free_aligned_buffer_64(dst_argb_c)
free_aligned_buffer_64(dst_argb_opt)
return max_diff;
}
TEST_F(libyuvTest, ARGBBlend_Any) {
int max_diff = TestBlend(benchmark_width_ - 4, benchmark_height_,
benchmark_iterations_, +1, 0);
EXPECT_LE(max_diff, 1);
}
// TODO(fbarchard): Enable unaligned blend test.
// TEST_F(libyuvTest, ARGBBlend_Unaligned) {
// int max_diff = TestBlend(benchmark_width_, benchmark_height_,
// benchmark_iterations_, +1, 1);
// EXPECT_LE(max_diff, 1);
// }
TEST_F(libyuvTest, ARGBBlend_Invert) {
int max_diff = TestBlend(benchmark_width_, benchmark_height_,
benchmark_iterations_, -1, 0);
EXPECT_LE(max_diff, 1);
}
TEST_F(libyuvTest, ARGBBlend_Opt) {
int max_diff = TestBlend(benchmark_width_, benchmark_height_,
benchmark_iterations_, +1, 0);
EXPECT_LE(max_diff, 1);
}
TEST_F(libyuvTest, TestAffine) {
SIMD_ALIGNED(uint8 orig_pixels_0[256][4]);
SIMD_ALIGNED(uint8 interpolate_pixels_C[256][4]);