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Port scale to C moving variable definitions to top of functions.

Browse Source 
BUG=303
TESTED=gyp builds still build/pass.
R=tpsiaki@google.com

Review URL: https://webrtc-codereview.appspot.com/6949004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@962 16f28f9a-4ce2-e073-06de-1de4eb20be90
This commit is contained in:
fbarchard@google.com 2014-01-11 04:59:01 +00:00
parent ecf5a1446e
commit 5aa39953cc
4 changed files with 68 additions and 47 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: 960
Version: 961
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 960
#define LIBYUV_VERSION 961
#endif // INCLUDE_LIBYUV_VERSION_H_ NOLINT

45
source/scale.cc
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@ -82,7 +82,8 @@ static void ScalePlaneDown2(int src_width, int src_height,
src_stride = 0;
}
// TODO(fbarchard): Loop through source height to allow odd height.
for (int y = 0; y < dst_height; ++y) {
int y;
for (y = 0; y < dst_height; ++y) {
ScaleRowDown2(src_ptr, src_stride, dst_ptr, dst_width);
src_ptr += row_stride;
dst_ptr += dst_stride;
@ -128,7 +129,8 @@ static void ScalePlaneDown4(int src_width, int src_height,
if (filtering == kFilterLinear) {
src_stride = 0;
}
for (int y = 0; y < dst_height; ++y) {
int y;
for (y = 0; y < dst_height; ++y) {
ScaleRowDown4(src_ptr, src_stride, dst_ptr, dst_width);
src_ptr += row_stride;
dst_ptr += dst_stride;
@ -192,7 +194,8 @@ static void ScalePlaneDown34(int src_width, int src_height,
#endif
const int filter_stride = (filtering == kFilterLinear) ? 0 : src_stride;
for (int y = 0; y < dst_height - 2; y += 3) {
int y;
for (y = 0; y < dst_height - 2; y += 3) {
ScaleRowDown34_0(src_ptr, filter_stride, dst_ptr, dst_width);
src_ptr += src_stride;
dst_ptr += dst_stride;
@ -285,7 +288,8 @@ static void ScalePlaneDown38(int src_width, int src_height,
#endif
const int filter_stride = (filtering == kFilterLinear) ? 0 : src_stride;
for (int y = 0; y < dst_height - 2; y += 3) {
int y;
for (y = 0; y < dst_height - 2; y += 3) {
ScaleRowDown38_3(src_ptr, filter_stride, dst_ptr, dst_width);
src_ptr += src_stride * 3;
dst_ptr += dst_stride;
@ -313,8 +317,10 @@ static __inline uint32 SumBox(int iboxwidth, int iboxheight,
assert(iboxwidth > 0);
assert(iboxheight > 0);
uint32 sum = 0u;
for (int y = 0; y < iboxheight; ++y) {
for (int x = 0; x < iboxwidth; ++x) {
int y;
for (y = 0; y < iboxheight; ++y) {
int x;
for (x = 0; x < iboxwidth; ++x) {
sum += src_ptr[x];
}
src_ptr += src_stride;
@ -325,7 +331,8 @@ static __inline uint32 SumBox(int iboxwidth, int iboxheight,
static void ScalePlaneBoxRow_C(int dst_width, int boxheight,
int x, int dx, ptrdiff_t src_stride,
const uint8* src_ptr, uint8* dst_ptr) {
for (int i = 0; i < dst_width; ++i) {
int i;
for (i = 0; i < dst_width; ++i) {
int ix = x >> 16;
x += dx;
int boxwidth = (x >> 16) - ix;
@ -337,7 +344,8 @@ static void ScalePlaneBoxRow_C(int dst_width, int boxheight,
static __inline uint32 SumPixels(int iboxwidth, const uint16* src_ptr) {
assert(iboxwidth > 0);
uint32 sum = 0u;
for (int x = 0; x < iboxwidth; ++x) {
int x;
for (x = 0; x < iboxwidth; ++x) {
sum += src_ptr[x];
}
return sum;
@ -350,7 +358,8 @@ static void ScaleAddCols2_C(int dst_width, int boxheight, int x, int dx,
scaletbl[0] = 65536 / (minboxwidth * boxheight);
scaletbl[1] = 65536 / ((minboxwidth + 1) * boxheight);
int* scaleptr = scaletbl - minboxwidth;
for (int i = 0; i < dst_width; ++i) {
int i;
for (i = 0; i < dst_width; ++i) {
int ix = x >> 16;
x += dx;
int boxwidth = (x >> 16) - ix;
@ -362,7 +371,8 @@ static void ScaleAddCols1_C(int dst_width, int boxheight, int x, int dx,
const uint16* src_ptr, uint8* dst_ptr) {
int boxwidth = (dx >> 16);
int scaleval = 65536 / (boxwidth * boxheight);
for (int i = 0; i < dst_width; ++i) {
int i;
for (i = 0; i < dst_width; ++i) {
*dst_ptr++ = SumPixels(boxwidth, src_ptr + x) * scaleval >> 16;
x += boxwidth;
}
@ -391,7 +401,8 @@ static void ScalePlaneBox(int src_width, int src_height,
// TODO(fbarchard): Remove this and make AddRows handle boxheight 1.
if (!IS_ALIGNED(src_width, 16) || dst_height * 2 > src_height) {
uint8* dst = dst_ptr;
for (int j = 0; j < dst_height; ++j) {
int j;
for (j = 0; j < dst_height; ++j) {
int iy = y >> 16;
const uint8* src = src_ptr + iy * src_stride;
y += dy;
@ -424,7 +435,8 @@ static void ScalePlaneBox(int src_width, int src_height,
}
#endif
for (int j = 0; j < dst_height; ++j) {
int j;
for (j = 0; j < dst_height; ++j) {
int iy = y >> 16;
const uint8* src = src_ptr + iy * src_stride;
y += dy;
@ -521,7 +533,8 @@ void ScalePlaneBilinearDown(int src_width, int src_height,
align_buffer_64(row, src_width);
const int max_y = (src_height - 1) << 16;
for (int j = 0; j < dst_height; ++j) {
int j;
for (j = 0; j < dst_height; ++j) {
if (y > max_y) {
y = max_y;
}
@ -649,7 +662,8 @@ void ScalePlaneBilinearUp(int src_width, int src_height,
ScaleFilterCols(rowptr + rowstride, src, dst_width, x, dx);
src += src_stride;
for (int j = 0; j < dst_height; ++j) {
int j;
for (j = 0; j < dst_height; ++j) {
yi = y >> 16;
if (yi != lasty) {
if (y > max_y) {
@ -708,7 +722,8 @@ static void ScalePlaneSimple(int src_width, int src_height,
#endif
}
for (int i = 0; i < dst_height; ++i) {
int i;
for (i = 0; i < dst_height; ++i) {
ScaleCols(dst_ptr, src_ptr + (y >> 16) * src_stride,
dst_width, x, dx);
dst_ptr += dst_stride;

66
source/scale_argb.cc
View File

@ -36,6 +36,13 @@ static void ScaleARGBDown2(int src_width, int src_height,
const uint8* src_argb, uint8* dst_argb,
int x, int dx, int y, int dy,
enum FilterMode filtering) {
int j;
int row_stride = src_stride * (dy >> 16);
void (*ScaleARGBRowDown2)(const uint8* src_argb, ptrdiff_t src_stride,
uint8* dst_argb, int dst_width) =
filtering == kFilterNone ? ScaleARGBRowDown2_C :
(filtering == kFilterLinear ? ScaleARGBRowDown2Linear_C :
ScaleARGBRowDown2Box_C);
assert(dx == 65536 * 2); // Test scale factor of 2.
assert((dy & 0x1ffff) == 0); // Test vertical scale is multiple of 2.
// Advance to odd row, even column.
@ -44,12 +51,7 @@ static void ScaleARGBDown2(int src_width, int src_height,
} else {
src_argb += (y >> 16) * src_stride + ((x >> 16) - 1) * 4;
}
int row_stride = src_stride * (dy >> 16);
void (*ScaleARGBRowDown2)(const uint8* src_argb, ptrdiff_t src_stride,
uint8* dst_argb, int dst_width) =
filtering == kFilterNone ? ScaleARGBRowDown2_C :
(filtering == kFilterLinear ? ScaleARGBRowDown2Linear_C :
ScaleARGBRowDown2Box_C);
#if defined(HAS_SCALEARGBROWDOWN2_SSE2)
if (TestCpuFlag(kCpuHasSSE2) && IS_ALIGNED(dst_width, 4) &&
IS_ALIGNED(src_argb, 16) && IS_ALIGNED(row_stride, 16) &&
@ -69,7 +71,7 @@ static void ScaleARGBDown2(int src_width, int src_height,
if (filtering == kFilterLinear) {
src_stride = 0;
}
for (int y = 0; y < dst_height; ++y) {
for (j = 0; j < dst_height; ++j) {
ScaleARGBRowDown2(src_argb, src_stride, dst_argb, dst_width);
src_argb += row_stride;
dst_argb += dst_stride;
@ -84,14 +86,17 @@ static void ScaleARGBDown4Box(int src_width, int src_height,
int src_stride, int dst_stride,
const uint8* src_argb, uint8* dst_argb,
int x, int dx, int y, int dy) {
assert(dx == 65536 * 4); // Test scale factor of 4.
assert((dy & 0x3ffff) == 0); // Test vertical scale is multiple of 4.
// Advance to odd row, even column.
src_argb += (y >> 16) * src_stride + (x >> 16) * 4;
int j;
// Allocate 2 rows of ARGB.
const int kRowSize = (dst_width * 2 * 4 + 15) & ~15;
align_buffer_64(row, kRowSize * 2);
int row_stride = src_stride * (dy >> 16);
void (*ScaleARGBRowDown2)(const uint8* src_argb, ptrdiff_t src_stride,
uint8* dst_argb, int dst_width) = ScaleARGBRowDown2Box_C;
// Advance to odd row, even column.
src_argb += (y >> 16) * src_stride + (x >> 16) * 4;
assert(dx == 65536 * 4); // Test scale factor of 4.
assert((dy & 0x3ffff) == 0); // Test vertical scale is multiple of 4.
#if defined(HAS_SCALEARGBROWDOWN2_SSE2)
if (TestCpuFlag(kCpuHasSSE2) && IS_ALIGNED(dst_width, 4) &&
IS_ALIGNED(src_argb, 16) && IS_ALIGNED(row_stride, 16) &&
@ -104,12 +109,7 @@ static void ScaleARGBDown4Box(int src_width, int src_height,
ScaleARGBRowDown2 = ScaleARGBRowDown2Box_NEON;
}
#endif
// Allocate 2 rows of ARGB.
const int kRowSize = (dst_width * 2 * 4 + 15) & ~15;
align_buffer_64(row, kRowSize * 2);
for (int y = 0; y < dst_height; ++y) {
for (j = 0; j < dst_height; ++j) {
ScaleARGBRowDown2(src_argb, src_stride, row, dst_width * 2);
ScaleARGBRowDown2(src_argb + src_stride * 2, src_stride,
row + kRowSize, dst_width * 2);
@ -129,14 +129,15 @@ static void ScaleARGBDownEven(int src_width, int src_height,
const uint8* src_argb, uint8* dst_argb,
int x, int dx, int y, int dy,
enum FilterMode filtering) {
assert(IS_ALIGNED(src_width, 2));
assert(IS_ALIGNED(src_height, 2));
int j;
int col_step = dx >> 16;
int row_stride = (dy >> 16) * src_stride;
src_argb += (y >> 16) * src_stride + (x >> 16) * 4;
void (*ScaleARGBRowDownEven)(const uint8* src_argb, ptrdiff_t src_stride,
int src_step, uint8* dst_argb, int dst_width) =
filtering ? ScaleARGBRowDownEvenBox_C : ScaleARGBRowDownEven_C;
assert(IS_ALIGNED(src_width, 2));
assert(IS_ALIGNED(src_height, 2));
src_argb += (y >> 16) * src_stride + (x >> 16) * 4;
#if defined(HAS_SCALEARGBROWDOWNEVEN_SSE2)
if (TestCpuFlag(kCpuHasSSE2) && IS_ALIGNED(dst_width, 4) &&
IS_ALIGNED(dst_argb, 16) && IS_ALIGNED(dst_stride, 16)) {
@ -154,7 +155,7 @@ static void ScaleARGBDownEven(int src_width, int src_height,
if (filtering == kFilterLinear) {
src_stride = 0;
}
for (int y = 0; y < dst_height; ++y) {
for (j = 0; j < dst_height; ++j) {
ScaleARGBRowDownEven(src_argb, src_stride, col_step, dst_argb, dst_width);
src_argb += row_stride;
dst_argb += dst_stride;
@ -168,12 +169,14 @@ static void ScaleARGBBilinearDown(int src_width, int src_height,
const uint8* src_argb, uint8* dst_argb,
int x, int dx, int y, int dy,
enum FilterMode filtering) {
int j;
int64 xlast = x + (int64)(dst_width - 1) * dx;
int64 xl = (dx >= 0) ? x : xlast;
int64 xr = (dx >= 0) ? xlast : x;
int clip_src_width;
xl = (xl >> 16) & ~3; // Left edge aligned.
xr = (xr >> 16) + 1; // Right most pixel used.
int clip_src_width = (((xr - xl) + 1 + 3) & ~3) * 4; // Width aligned to 4.
clip_src_width = (((xr - xl) + 1 + 3) & ~3) * 4; // Width aligned to 4.
src_argb += xl * 4;
x -= (int)(xl << 16);
void (*InterpolateRow)(uint8* dst_argb, const uint8* src_argb,
@ -239,7 +242,7 @@ static void ScaleARGBBilinearDown(int src_width, int src_height,
align_buffer_64(row, clip_src_width * 4);
const int max_y = (src_height - 1) << 16;
for (int j = 0; j < dst_height; ++j) {
for (j = 0; j < dst_height; ++j) {
if (y > max_y) {
y = max_y;
}
@ -265,9 +268,13 @@ static void ScaleARGBBilinearUp(int src_width, int src_height,
const uint8* src_argb, uint8* dst_argb,
int x, int dx, int y, int dy,
enum FilterMode filtering) {
int j;
void (*InterpolateRow)(uint8* dst_argb, const uint8* src_argb,
ptrdiff_t src_stride, int dst_width, int source_y_fraction) =
InterpolateRow_C;
void (*ScaleARGBFilterCols)(uint8* dst_argb, const uint8* src_argb,
int dst_width, int x, int dx) =
filtering ? ScaleARGBFilterCols_C : ScaleARGBCols_C;
#if defined(HAS_INTERPOLATEROW_SSE2)
if (TestCpuFlag(kCpuHasSSE2) && dst_width >= 4) {
InterpolateRow = InterpolateRow_Any_SSE2;
@ -312,9 +319,6 @@ static void ScaleARGBBilinearUp(int src_width, int src_height,
InterpolateRow = InterpolateRow_MIPS_DSPR2;
}
#endif
void (*ScaleARGBFilterCols)(uint8* dst_argb, const uint8* src_argb,
int dst_width, int x, int dx) =
filtering ? ScaleARGBFilterCols_C : ScaleARGBCols_C;
if (src_width >= 32768) {
ScaleARGBFilterCols = filtering ?
ScaleARGBFilterCols64_C : ScaleARGBCols64_C;
@ -362,7 +366,7 @@ static void ScaleARGBBilinearUp(int src_width, int src_height,
ScaleARGBFilterCols(rowptr + rowstride, src, dst_width, x, dx);
src += src_stride;
for (int j = 0; j < dst_height; ++j) {
for (j = 0; j < dst_height; ++j) {
yi = y >> 16;
if (yi != lasty) {
if (y > max_y) {
@ -404,6 +408,7 @@ static void ScaleYUVToARGBBilinearUp(int src_width, int src_height,
uint8* dst_argb,
int x, int dx, int y, int dy,
enum FilterMode filtering) {
int j;
void (*I422ToARGBRow)(const uint8* y_buf,
const uint8* u_buf,
const uint8* v_buf,
@ -562,7 +567,7 @@ static void ScaleYUVToARGBBilinearUp(int src_width, int src_height,
}
}
for (int j = 0; j < dst_height; ++j) {
for (j = 0; j < dst_height; ++j) {
yi = y >> 16;
if (yi != lasty) {
if (y > max_y) {
@ -611,6 +616,7 @@ static void ScaleARGBSimple(int src_width, int src_height,
int src_stride, int dst_stride,
const uint8* src_argb, uint8* dst_argb,
int x, int dx, int y, int dy) {
int j;
void (*ScaleARGBCols)(uint8* dst_argb, const uint8* src_argb,
int dst_width, int x, int dx) =
(src_width >= 32768) ? ScaleARGBCols64_C : ScaleARGBCols_C;
@ -630,7 +636,7 @@ static void ScaleARGBSimple(int src_width, int src_height,
#endif
}
for (int i = 0; i < dst_height; ++i) {
for (j = 0; j < dst_height; ++j) {
ScaleARGBCols(dst_argb, src_argb + (y >> 16) * src_stride,
dst_width, x, dx);
dst_argb += dst_stride;