mirror of
https://chromium.googlesource.com/libyuv/libyuv
synced 2025-12-06 16:56:55 +08:00
Specialized scale down sample to 1 / 2 size adjust to match general purpose code which uses odd pixel (rounded up - nearest neighbor).
BUG=223 TEST=out\Debug\convert.exe -f 0 faces_640x480_P420.yuv face2_320x240_P420.yuv R=johannkoenig@google.com Review URL: https://webrtc-codereview.appspot.com/1583005 git-svn-id: http://libyuv.googlecode.com/svn/trunk@708 16f28f9a-4ce2-e073-06de-1de4eb20be90
This commit is contained in:
fbarchard@google.com
parent
83408b85e4
commit
8b54a8f9f2
@ -1,6 +1,6 @@
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Name: libyuv
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URL: http://code.google.com/p/libyuv/
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Version: 707
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Version: 708
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License: BSD
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License File: LICENSE
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@ -11,6 +11,6 @@
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#ifndef INCLUDE_LIBYUV_VERSION_H_ // NOLINT
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#define INCLUDE_LIBYUV_VERSION_H_
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#define LIBYUV_VERSION 707
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#define LIBYUV_VERSION 708
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#endif // INCLUDE_LIBYUV_VERSION_H_ NOLINT
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@ -196,16 +196,14 @@ static void ScaleRowDown2_SSE2(const uint8* src_ptr, ptrdiff_t src_stride,
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// src_stride ignored
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mov edx, [esp + 12] // dst_ptr
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mov ecx, [esp + 16] // dst_width
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pcmpeqb xmm5, xmm5 // generate mask 0x00ff00ff
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psrlw xmm5, 8
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align 16
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wloop:
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movdqa xmm0, [eax]
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movdqa xmm1, [eax + 16]
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lea eax, [eax + 32]
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pand xmm0, xmm5
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pand xmm1, xmm5
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psrlw xmm0, 8 // isolate odd pixels.
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psrlw xmm1, 8
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packuswb xmm0, xmm1
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sub ecx, 16
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movdqa [edx], xmm0
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@ -271,16 +269,14 @@ static void ScaleRowDown2_Unaligned_SSE2(const uint8* src_ptr,
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// src_stride ignored
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mov edx, [esp + 12] // dst_ptr
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mov ecx, [esp + 16] // dst_width
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pcmpeqb xmm5, xmm5 // generate mask 0x00ff00ff
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psrlw xmm5, 8
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align 16
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wloop:
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movdqu xmm0, [eax]
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movdqu xmm1, [eax + 16]
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lea eax, [eax + 32]
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pand xmm0, xmm5
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pand xmm1, xmm5
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psrlw xmm0, 8 // isolate odd pixels.
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psrlw xmm1, 8
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packuswb xmm0, xmm1
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sub ecx, 16
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movdqu [edx], xmm0
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@ -1269,15 +1265,13 @@ static void ScaleFilterRows_Unaligned_SSSE3(uint8* dst_ptr,
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static void ScaleRowDown2_SSE2(const uint8* src_ptr, ptrdiff_t src_stride,
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uint8* dst_ptr, int dst_width) {
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asm volatile (
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"pcmpeqb %%xmm5,%%xmm5 \n"
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"psrlw $0x8,%%xmm5 \n"
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".p2align 4 \n"
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"1: \n"
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"movdqa (%0),%%xmm0 \n"
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"movdqa 0x10(%0),%%xmm1 \n"
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"lea 0x20(%0),%0 \n"
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"pand %%xmm5,%%xmm0 \n"
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"pand %%xmm5,%%xmm1 \n"
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"psrlw $0x8,%%xmm0 \n"
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"psrlw $0x8,%%xmm1 \n"
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"packuswb %%xmm1,%%xmm0 \n"
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"movdqa %%xmm0,(%1) \n"
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"lea 0x10(%1),%1 \n"
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@ -1289,7 +1283,7 @@ static void ScaleRowDown2_SSE2(const uint8* src_ptr, ptrdiff_t src_stride,
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:
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: "memory", "cc"
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#if defined(__SSE2__)
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, "xmm0", "xmm1", "xmm5"
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, "xmm0", "xmm1"
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#endif
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);
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}
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@ -1336,15 +1330,13 @@ static void ScaleRowDown2_Unaligned_SSE2(const uint8* src_ptr,
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ptrdiff_t src_stride,
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uint8* dst_ptr, int dst_width) {
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asm volatile (
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"pcmpeqb %%xmm5,%%xmm5 \n"
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"psrlw $0x8,%%xmm5 \n"
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".p2align 4 \n"
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"1: \n"
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"movdqu (%0),%%xmm0 \n"
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"movdqu 0x10(%0),%%xmm1 \n"
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"lea 0x20(%0),%0 \n"
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"pand %%xmm5,%%xmm0 \n"
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"pand %%xmm5,%%xmm1 \n"
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"psrlw $0x8,%%xmm0 \n"
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"psrlw $0x8,%%xmm1 \n"
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"packuswb %%xmm1,%%xmm0 \n"
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"movdqu %%xmm0,(%1) \n"
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"lea 0x10(%1),%1 \n"
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@ -1356,7 +1348,7 @@ static void ScaleRowDown2_Unaligned_SSE2(const uint8* src_ptr,
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:
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: "memory", "cc"
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#if defined(__SSE2__)
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, "xmm0", "xmm1", "xmm5"
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, "xmm0", "xmm1"
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#endif
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);
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}
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@ -2324,13 +2316,13 @@ static void ScaleRowDown2_C(const uint8* src_ptr, ptrdiff_t /* src_stride */,
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uint8* dst, int dst_width) {
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uint8* dend = dst + dst_width - 1;
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do {
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dst[0] = src_ptr[0];
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dst[1] = src_ptr[2];
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dst[0] = src_ptr[1];
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dst[1] = src_ptr[3];
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dst += 2;
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src_ptr += 4;
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} while (dst < dend);
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if (dst_width & 1) {
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dst[0] = src_ptr[0];
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dst[0] = src_ptr[1];
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}
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}
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@ -2689,6 +2681,7 @@ static void ScalePlaneDown2(int /* src_width */, int /* src_height */,
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}
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#endif
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src_ptr += src_stride; // Point to odd rows.
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// TODO(fbarchard): Loop through source height to allow odd height.
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for (int y = 0; y < dst_height; ++y) {
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ScaleRowDown2(src_ptr, src_stride, dst_ptr, dst_width);
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@ -62,7 +62,7 @@ static void ScaleARGBRowDown2_SSE2(const uint8* src_argb,
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movdqa xmm0, [eax]
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movdqa xmm1, [eax + 16]
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lea eax, [eax + 32]
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shufps xmm0, xmm1, 0x88
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shufps xmm0, xmm1, 0xdd
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sub ecx, 4
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movdqa [edx], xmm0
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lea edx, [edx + 16]
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@ -350,7 +350,7 @@ static void ScaleARGBRowDown2_SSE2(const uint8* src_argb,
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"movdqa (%0),%%xmm0 \n"
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"movdqa 0x10(%0),%%xmm1 \n"
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"lea 0x20(%0),%0 \n"
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"shufps $0x88,%%xmm1,%%xmm0 \n"
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"shufps $0xdd,%%xmm1,%%xmm0 \n"
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"sub $0x4,%2 \n"
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"movdqa %%xmm0,(%1) \n"
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"lea 0x10(%1),%1 \n"
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@ -634,13 +634,13 @@ static void ScaleARGBRowDown2_C(const uint8* src_argb,
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uint32* dst = reinterpret_cast<uint32*>(dst_argb);
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for (int x = 0; x < dst_width - 1; x += 2) {
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dst[0] = src[0];
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dst[1] = src[2];
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dst[0] = src[1];
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dst[1] = src[3];
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src += 4;
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dst += 2;
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}
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if (dst_width & 1) {
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dst[0] = src[0];
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dst[0] = src[1];
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}
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}
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@ -743,25 +743,26 @@ static void ScaleARGBDown2(int /* src_width */, int /* src_height */,
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FilterMode filtering) {
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assert(dx == 65536 * 2); // Test scale factor of 2.
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assert((dy & 0x1ffff) == 0); // Test vertical scale is multiple of 2.
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// Advance to odd row / even column.
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src_argb += (y >> 16) * src_stride + ((x >> 16) - 1) * 4;
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int row_stride = src_stride * (dy >> 16);
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void (*ScaleARGBRowDown2)(const uint8* src_argb, ptrdiff_t src_stride,
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uint8* dst_argb, int dst_width) =
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filtering ? ScaleARGBRowDown2Int_C : ScaleARGBRowDown2_C;
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#if defined(HAS_SCALEARGBROWDOWN2_SSE2)
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if (TestCpuFlag(kCpuHasSSE2) && IS_ALIGNED(dst_width, 4) &&
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IS_ALIGNED(src_argb, 16) && IS_ALIGNED(src_stride, 16) &&
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IS_ALIGNED(src_argb, 16) && IS_ALIGNED(row_stride, 16) &&
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IS_ALIGNED(dst_argb, 16) && IS_ALIGNED(dst_stride, 16)) {
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ScaleARGBRowDown2 = filtering ? ScaleARGBRowDown2Int_SSE2 :
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ScaleARGBRowDown2_SSE2;
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}
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#elif defined(HAS_SCALEARGBROWDOWN2_NEON)
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if (TestCpuFlag(kCpuHasNEON) && IS_ALIGNED(dst_width, 8) &&
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IS_ALIGNED(src_argb, 4) && IS_ALIGNED(src_stride, 4)) {
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IS_ALIGNED(src_argb, 4) && IS_ALIGNED(row_stride, 4)) {
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ScaleARGBRowDown2 = filtering ? ScaleARGBRowDown2Int_NEON :
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ScaleARGBRowDown2_NEON;
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}
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#endif
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src_argb += (y >> 16) * src_stride + (x >> 16) * 4;
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int row_stride = src_stride * (dy >> 16);
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// TODO(fbarchard): Loop through source height to allow odd height.
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for (int y = 0; y < dst_height; ++y) {
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@ -782,6 +783,9 @@ static void ScaleARGBDownEven(int src_width, int src_height,
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FilterMode filtering) {
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assert(IS_ALIGNED(src_width, 2));
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assert(IS_ALIGNED(src_height, 2));
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int col_step = dx >> 16;
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int row_stride = (dy >> 16) * src_stride;
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src_argb += (y >> 16) * src_stride + (x >> 16) * 4;
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void (*ScaleARGBRowDownEven)(const uint8* src_argb, ptrdiff_t src_stride,
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int src_step, uint8* dst_argb, int dst_width) =
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filtering ? ScaleARGBRowDownEvenInt_C : ScaleARGBRowDownEven_C;
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@ -798,9 +802,6 @@ static void ScaleARGBDownEven(int src_width, int src_height,
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ScaleARGBRowDownEven_NEON;
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}
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#endif
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int col_step = dx >> 16;
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int row_stride = (dy >> 16) * src_stride;
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src_argb += (y >> 16) * src_stride + (x >> 16) * 4;
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for (int y = 0; y < dst_height; ++y) {
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ScaleARGBRowDownEven(src_argb, src_stride, col_step, dst_argb, dst_width);
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@ -27,8 +27,8 @@ void ScaleARGBRowDown2_NEON(const uint8* src_ptr, ptrdiff_t /* src_stride */,
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"vld2.u32 {q0, q1}, [%0]! \n"
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"vld2.u32 {q2, q3}, [%0]! \n"
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"subs %2, %2, #8 \n" // 8 processed per loop
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"vst1.u8 {q0}, [%1]! \n" // store even pixels
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"vst1.u8 {q2}, [%1]! \n"
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"vst1.u8 {q1}, [%1]! \n" // store odd pixels
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"vst1.u8 {q3}, [%1]! \n"
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"bgt 1b \n"
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: "+r"(src_ptr), // %0
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"+r"(dst), // %1
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@ -78,6 +78,7 @@ void ScaleARGBRowDownEven_NEON(const uint8* src_argb, ptrdiff_t,
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int src_stepx,
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uint8* dst_argb, int dst_width) {
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asm volatile (
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"add %0, #4 \n" // point to odd pixels.
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"mov r12, %3, lsl #2 \n"
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".p2align 2 \n"
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"1: \n"
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@ -39,6 +39,7 @@ void ScaleRowDown2_MIPS_DSPR2(const uint8* src_ptr, ptrdiff_t /* src_stride */,
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"lw $t5, 20(%[src_ptr]) \n" // |23|22|21|20|
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"lw $t6, 24(%[src_ptr]) \n" // |27|26|25|24|
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"lw $t7, 28(%[src_ptr]) \n" // |31|30|29|28|
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// TODO(fbarchard): Use odd pixels instead of even.
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"precr.qb.ph $t8, $t1, $t0 \n" // |6|4|2|0|
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"precr.qb.ph $t0, $t3, $t2 \n" // |14|12|10|8|
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"precr.qb.ph $t1, $t5, $t4 \n" // |22|20|18|16|
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@ -29,7 +29,7 @@ void ScaleRowDown2_NEON(const uint8* src_ptr, ptrdiff_t /* src_stride */,
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// load even pixels into q0, odd into q1
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"vld2.u8 {q0,q1}, [%0]! \n"
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"subs %2, %2, #16 \n" // 16 processed per loop
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"vst1.u8 {q0}, [%1]! \n" // store even pixels
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"vst1.u8 {q1}, [%1]! \n" // store odd pixels
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"bgt 1b \n"
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: "+r"(src_ptr), // %0
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"+r"(dst), // %1
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