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Scale use kMaxStride for row buffers

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BUG=none
TEST=libyuv unittest passes
Review URL: https://webrtc-codereview.appspot.com/1287005

git-svn-id: http://libyuv.googlecode.com/svn/trunk@645 16f28f9a-4ce2-e073-06de-1de4eb20be90
This commit is contained in:
fbarchard@google.com 2013-04-05 18:22:59 +00:00
parent 0cc0b4df46
commit aa544f3205
4 changed files with 16 additions and 25 deletions
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2
README.chromium
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@ -1,6 +1,6 @@
Name: libyuv
URL: http://code.google.com/p/libyuv/
Version: 644
Version: 645
License: BSD
License File: LICENSE

2
include/libyuv/version.h
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@ -11,6 +11,6 @@
#ifndef INCLUDE_LIBYUV_VERSION_H_ // NOLINT
#define INCLUDE_LIBYUV_VERSION_H_
#define LIBYUV_VERSION 644
#define LIBYUV_VERSION 645
#endif // INCLUDE_LIBYUV_VERSION_H_ NOLINT

29
source/scale.cc
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@ -2394,11 +2394,6 @@ static void ScaleRowDown4Int_C(const uint8* src_ptr, ptrdiff_t src_stride,
}
}
// 640 output pixels is enough to allow 5120 input pixels with 1/8 scale down.
// Keeping the total buffer under 4096 bytes avoids a stackcheck, saving 4% cpu.
static const int kMaxOutputWidth = 640;
static const int kMaxRow12 = kMaxOutputWidth * 2;
static void ScaleRowDown8_C(const uint8* src_ptr, ptrdiff_t /* src_stride */,
uint8* dst, int dst_width) {
uint8* dend = dst + dst_width - 1;
@ -2417,13 +2412,13 @@ static void ScaleRowDown8_C(const uint8* src_ptr, ptrdiff_t /* src_stride */,
// uses ScaleRowDown8_C instead.
static void ScaleRowDown8Int_C(const uint8* src_ptr, ptrdiff_t src_stride,
uint8* dst, int dst_width) {
SIMD_ALIGNED(uint8 src_row[kMaxRow12 * 2]);
assert(dst_width <= kMaxOutputWidth);
SIMD_ALIGNED(uint8 src_row[kMaxStride * 2]);
assert(dst_width <= kMaxStride);
ScaleRowDown4Int_C(src_ptr, src_stride, src_row, dst_width * 2);
ScaleRowDown4Int_C(src_ptr + src_stride * 4, src_stride,
src_row + kMaxOutputWidth,
src_row + kMaxStride,
dst_width * 2);
ScaleRowDown2Int_C(src_row, kMaxOutputWidth, dst, dst_width);
ScaleRowDown2Int_C(src_row, kMaxStride, dst, dst_width);
}
static void ScaleRowDown34_C(const uint8* src_ptr, ptrdiff_t /* src_stride */,
@ -2512,8 +2507,6 @@ static void ScaleFilterCols_C(uint8* dst_ptr, const uint8* src_ptr,
}
}
static const int kMaxInputWidth = 2880;
#if defined(HAS_SCALEFILTERROWS_SSE2)
// Filter row to 3/4
static void ScaleFilterCols34_C(uint8* dst_ptr, const uint8* src_ptr,
@ -2536,7 +2529,7 @@ static void ScaleRowDown34_0_Int_SSE2(const uint8* src_ptr,
ptrdiff_t src_stride,
uint8* dst_ptr, int dst_width) {
assert((dst_width % 3 == 0) && (dst_width > 0));
SIMD_ALIGNED(uint8 row[kMaxInputWidth]);
SIMD_ALIGNED(uint8 row[kMaxStride]);
ScaleFilterRows_SSE2(row, src_ptr, src_stride, dst_width * 4 / 3, 256 / 4);
ScaleFilterCols34_C(dst_ptr, row, dst_width);
}
@ -2546,7 +2539,7 @@ static void ScaleRowDown34_1_Int_SSE2(const uint8* src_ptr,
ptrdiff_t src_stride,
uint8* dst_ptr, int dst_width) {
assert((dst_width % 3 == 0) && (dst_width > 0));
SIMD_ALIGNED(uint8 row[kMaxInputWidth]);
SIMD_ALIGNED(uint8 row[kMaxStride]);
ScaleFilterRows_SSE2(row, src_ptr, src_stride, dst_width * 4 / 3, 256 / 2);
ScaleFilterCols34_C(dst_ptr, row, dst_width);
}
@ -2747,7 +2740,7 @@ static void ScalePlaneDown8(int /* src_width */, int /* src_height */,
FilterMode filtering) {
void (*ScaleRowDown8)(const uint8* src_ptr, ptrdiff_t src_stride,
uint8* dst_ptr, int dst_width) =
filtering && (dst_width <= kMaxOutputWidth) ?
filtering && (dst_width <= kMaxStride) ?
ScaleRowDown8Int_C : ScaleRowDown8_C;
#if defined(HAS_SCALEROWDOWN8_SSE2)
if (TestCpuFlag(kCpuHasSSE2) &&
@ -3021,7 +3014,7 @@ static void ScalePlaneBox(int src_width, int src_height,
int x = 0;
int y = 0;
int maxy = (src_height << 16);
if (!IS_ALIGNED(src_width, 16) || (src_width > kMaxInputWidth) ||
if (!IS_ALIGNED(src_width, 16) || (src_width > kMaxStride) ||
dst_height * 2 > src_height) {
uint8* dst = dst_ptr;
for (int j = 0; j < dst_height; ++j) {
@ -3038,7 +3031,7 @@ static void ScalePlaneBox(int src_width, int src_height,
dst += dst_stride;
}
} else {
SIMD_ALIGNED(uint16 row[kMaxInputWidth]);
SIMD_ALIGNED(uint16 row[kMaxStride]);
void (*ScaleAddRows)(const uint8* src_ptr, ptrdiff_t src_stride,
uint16* dst_ptr, int src_width, int src_height)=
ScaleAddRows_C;
@ -3120,12 +3113,12 @@ void ScalePlaneBilinear(int src_width, int src_height,
const uint8* src_ptr, uint8* dst_ptr) {
assert(dst_width > 0);
assert(dst_height > 0);
if (src_width > kMaxInputWidth) {
if (src_width > kMaxStride) {
ScalePlaneBilinearSimple(src_width, src_height, dst_width, dst_height,
src_stride, dst_stride, src_ptr, dst_ptr);
} else {
SIMD_ALIGNED(uint8 row[kMaxInputWidth + 16]);
SIMD_ALIGNED(uint8 row[kMaxStride + 16]);
void (*ScaleFilterRows)(uint8* dst_ptr, const uint8* src_ptr,
ptrdiff_t src_stride,
int dst_width, int source_y_fraction) =

8
source/scale_argb.cc
View File

@ -1018,16 +1018,14 @@ static void ScaleARGBDownEven(int src_width, int src_height,
// ScaleARGB ARGB to/from any dimensions, with bilinear
// interpolation.
// Maximum width handled by 2 pass Bilinear.
static const int kMaxInputWidth = 2880;
static void ScaleARGBBilinear(int src_width, int src_height,
int dst_width, int dst_height,
int src_stride, int dst_stride,
const uint8* src_argb, uint8* dst_argb) {
assert(dst_width > 0);
assert(dst_height > 0);
assert(src_width <= kMaxInputWidth);
SIMD_ALIGNED(uint8 row[kMaxInputWidth * 4 + 16]);
assert(src_width * 4 <= kMaxStride);
SIMD_ALIGNED(uint8 row[kMaxStride + 16]);
void (*ScaleARGBFilterRows)(uint8* dst_argb, const uint8* src_argb,
ptrdiff_t src_stride,
int dst_width, int source_y_fraction) =
@ -1116,7 +1114,7 @@ static void ScaleARGBAnySize(int src_width, int src_height,
int src_stride, int dst_stride,
const uint8* src_argb, uint8* dst_argb,
FilterMode filtering) {
if (!filtering || (src_width > kMaxInputWidth)) {
if (!filtering || (src_width * 4 > kMaxStride)) {
ScaleARGBSimple(src_width, src_height, dst_width, dst_height,
src_stride, dst_stride, src_argb, dst_argb);
} else {