diff options
Diffstat (limited to 'src/main/jni/libyuv/source/scale_argb.cc')
| -rw-r--r-- | src/main/jni/libyuv/source/scale_argb.cc | 809 |
1 files changed, 0 insertions, 809 deletions
diff --git a/src/main/jni/libyuv/source/scale_argb.cc b/src/main/jni/libyuv/source/scale_argb.cc deleted file mode 100644 index e339cd7c7..000000000 --- a/src/main/jni/libyuv/source/scale_argb.cc +++ /dev/null @@ -1,809 +0,0 @@ -/* - * Copyright 2011 The LibYuv Project Authors. All rights reserved. - * - * Use of this source code is governed by a BSD-style license - * that can be found in the LICENSE file in the root of the source - * tree. An additional intellectual property rights grant can be found - * in the file PATENTS. All contributing project authors may - * be found in the AUTHORS file in the root of the source tree. - */ - -#include "libyuv/scale.h" - -#include <assert.h> -#include <string.h> - -#include "libyuv/cpu_id.h" -#include "libyuv/planar_functions.h" // For CopyARGB -#include "libyuv/row.h" -#include "libyuv/scale_row.h" - -#ifdef __cplusplus -namespace libyuv { -extern "C" { -#endif - -static __inline int Abs(int v) { - return v >= 0 ? v : -v; -} - -// ScaleARGB ARGB, 1/2 -// This is an optimized version for scaling down a ARGB to 1/2 of -// its original size. -static void ScaleARGBDown2(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, - 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. - if (filtering == kFilterBilinear) { - src_argb += (y >> 16) * src_stride + (x >> 16) * 4; - } else { - src_argb += (y >> 16) * src_stride + ((x >> 16) - 1) * 4; - } - -#if defined(HAS_SCALEARGBROWDOWN2_SSE2) - if (TestCpuFlag(kCpuHasSSE2) && IS_ALIGNED(dst_width, 4) && - IS_ALIGNED(src_argb, 16) && IS_ALIGNED(row_stride, 16) && - IS_ALIGNED(dst_argb, 16) && IS_ALIGNED(dst_stride, 16)) { - ScaleARGBRowDown2 = filtering == kFilterNone ? ScaleARGBRowDown2_SSE2 : - (filtering == kFilterLinear ? ScaleARGBRowDown2Linear_SSE2 : - ScaleARGBRowDown2Box_SSE2); - } -#elif defined(HAS_SCALEARGBROWDOWN2_NEON) - if (TestCpuFlag(kCpuHasNEON) && IS_ALIGNED(dst_width, 8) && - IS_ALIGNED(src_argb, 4) && IS_ALIGNED(row_stride, 4)) { - ScaleARGBRowDown2 = filtering ? ScaleARGBRowDown2Box_NEON : - ScaleARGBRowDown2_NEON; - } -#endif - - if (filtering == kFilterLinear) { - src_stride = 0; - } - for (j = 0; j < dst_height; ++j) { - ScaleARGBRowDown2(src_argb, src_stride, dst_argb, dst_width); - src_argb += row_stride; - dst_argb += dst_stride; - } -} - -// ScaleARGB ARGB, 1/4 -// This is an optimized version for scaling down a ARGB to 1/4 of -// its original size. -static void ScaleARGBDown4Box(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, - int x, int dx, int y, int dy) { - 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) && - IS_ALIGNED(dst_argb, 16) && IS_ALIGNED(dst_stride, 16)) { - ScaleARGBRowDown2 = ScaleARGBRowDown2Box_SSE2; - } -#elif defined(HAS_SCALEARGBROWDOWN2_NEON) - if (TestCpuFlag(kCpuHasNEON) && IS_ALIGNED(dst_width, 8) && - IS_ALIGNED(src_argb, 4) && IS_ALIGNED(row_stride, 4)) { - ScaleARGBRowDown2 = ScaleARGBRowDown2Box_NEON; - } -#endif - 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); - ScaleARGBRowDown2(row, kRowSize, dst_argb, dst_width); - src_argb += row_stride; - dst_argb += dst_stride; - } - free_aligned_buffer_64(row); -} - -// ScaleARGB ARGB Even -// This is an optimized version for scaling down a ARGB to even -// multiple of its original size. -static void ScaleARGBDownEven(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, - int x, int dx, int y, int dy, - enum FilterMode filtering) { - int j; - int col_step = dx >> 16; - int row_stride = (dy >> 16) * src_stride; - 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)) { - ScaleARGBRowDownEven = filtering ? ScaleARGBRowDownEvenBox_SSE2 : - ScaleARGBRowDownEven_SSE2; - } -#elif defined(HAS_SCALEARGBROWDOWNEVEN_NEON) - if (TestCpuFlag(kCpuHasNEON) && IS_ALIGNED(dst_width, 4) && - IS_ALIGNED(src_argb, 4)) { - ScaleARGBRowDownEven = filtering ? ScaleARGBRowDownEvenBox_NEON : - ScaleARGBRowDownEven_NEON; - } -#endif - - if (filtering == kFilterLinear) { - src_stride = 0; - } - 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; - } -} - -// Scale ARGB down with bilinear interpolation. -static void ScaleARGBBilinearDown(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, - 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) = - (src_width >= 32768) ? ScaleARGBFilterCols64_C : ScaleARGBFilterCols_C; - 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. Bilinear uses 2 pixels. - xr = (xr + 1 + 3) & ~3; // 1 beyond 4 pixel aligned right most pixel. - if (xr > src_width) { - xr = src_width; - } - clip_src_width = (int)(xr - xl) * 4; // Width aligned to 4. - src_argb += xl * 4; - x -= (int)(xl << 16); -#if defined(HAS_INTERPOLATEROW_SSE2) - if (TestCpuFlag(kCpuHasSSE2) && clip_src_width >= 16) { - InterpolateRow = InterpolateRow_Any_SSE2; - if (IS_ALIGNED(clip_src_width, 16)) { - InterpolateRow = InterpolateRow_Unaligned_SSE2; - if (IS_ALIGNED(src_argb, 16) && IS_ALIGNED(src_stride, 16)) { - InterpolateRow = InterpolateRow_SSE2; - } - } - } -#endif -#if defined(HAS_INTERPOLATEROW_SSSE3) - if (TestCpuFlag(kCpuHasSSSE3) && clip_src_width >= 16) { - InterpolateRow = InterpolateRow_Any_SSSE3; - if (IS_ALIGNED(clip_src_width, 16)) { - InterpolateRow = InterpolateRow_Unaligned_SSSE3; - if (IS_ALIGNED(src_argb, 16) && IS_ALIGNED(src_stride, 16)) { - InterpolateRow = InterpolateRow_SSSE3; - } - } - } -#endif -#if defined(HAS_INTERPOLATEROW_AVX2) - if (TestCpuFlag(kCpuHasAVX2) && clip_src_width >= 32) { - InterpolateRow = InterpolateRow_Any_AVX2; - if (IS_ALIGNED(clip_src_width, 32)) { - InterpolateRow = InterpolateRow_AVX2; - } - } -#endif -#if defined(HAS_INTERPOLATEROW_NEON) - if (TestCpuFlag(kCpuHasNEON) && clip_src_width >= 16) { - InterpolateRow = InterpolateRow_Any_NEON; - if (IS_ALIGNED(clip_src_width, 16)) { - InterpolateRow = InterpolateRow_NEON; - } - } -#endif -#if defined(HAS_INTERPOLATEROWS_MIPS_DSPR2) - if (TestCpuFlag(kCpuHasMIPS_DSPR2) && clip_src_width >= 4 && - IS_ALIGNED(src_argb, 4) && IS_ALIGNED(src_stride, 4)) { - InterpolateRow = InterpolateRow_Any_MIPS_DSPR2; - if (IS_ALIGNED(clip_src_width, 4)) { - InterpolateRow = InterpolateRow_MIPS_DSPR2; - } - } -#endif -#if defined(HAS_SCALEARGBFILTERCOLS_SSSE3) - if (TestCpuFlag(kCpuHasSSSE3) && src_width < 32768) { - ScaleARGBFilterCols = ScaleARGBFilterCols_SSSE3; - } -#endif - // TODO(fbarchard): Consider not allocating row buffer for kFilterLinear. - // Allocate a row of ARGB. - { - align_buffer_64(row, clip_src_width * 4); - - const int max_y = (src_height - 1) << 16; - if (y > max_y) { - y = max_y; - } - for (j = 0; j < dst_height; ++j) { - int yi = y >> 16; - const uint8* src = src_argb + yi * src_stride; - if (filtering == kFilterLinear) { - ScaleARGBFilterCols(dst_argb, src, dst_width, x, dx); - } else { - int yf = (y >> 8) & 255; - InterpolateRow(row, src, src_stride, clip_src_width, yf); - ScaleARGBFilterCols(dst_argb, row, dst_width, x, dx); - } - dst_argb += dst_stride; - y += dy; - if (y > max_y) { - y = max_y; - } - } - free_aligned_buffer_64(row); - } -} - -// Scale ARGB up with bilinear interpolation. -static void ScaleARGBBilinearUp(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, - 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; - const int max_y = (src_height - 1) << 16; -#if defined(HAS_INTERPOLATEROW_SSE2) - if (TestCpuFlag(kCpuHasSSE2) && dst_width >= 4) { - InterpolateRow = InterpolateRow_Any_SSE2; - if (IS_ALIGNED(dst_width, 4)) { - InterpolateRow = InterpolateRow_Unaligned_SSE2; - if (IS_ALIGNED(dst_argb, 16) && IS_ALIGNED(dst_stride, 16)) { - InterpolateRow = InterpolateRow_SSE2; - } - } - } -#endif -#if defined(HAS_INTERPOLATEROW_SSSE3) - if (TestCpuFlag(kCpuHasSSSE3) && dst_width >= 4) { - InterpolateRow = InterpolateRow_Any_SSSE3; - if (IS_ALIGNED(dst_width, 4)) { - InterpolateRow = InterpolateRow_Unaligned_SSSE3; - if (IS_ALIGNED(dst_argb, 16) && IS_ALIGNED(dst_stride, 16)) { - InterpolateRow = InterpolateRow_SSSE3; - } - } - } -#endif -#if defined(HAS_INTERPOLATEROW_AVX2) - if (TestCpuFlag(kCpuHasAVX2) && dst_width >= 8) { - InterpolateRow = InterpolateRow_Any_AVX2; - if (IS_ALIGNED(dst_width, 8)) { - InterpolateRow = InterpolateRow_AVX2; - } - } -#endif -#if defined(HAS_INTERPOLATEROW_NEON) - if (TestCpuFlag(kCpuHasNEON) && dst_width >= 4) { - InterpolateRow = InterpolateRow_Any_NEON; - if (IS_ALIGNED(dst_width, 4)) { - InterpolateRow = InterpolateRow_NEON; - } - } -#endif -#if defined(HAS_INTERPOLATEROWS_MIPS_DSPR2) - if (TestCpuFlag(kCpuHasMIPS_DSPR2) && dst_width >= 1 && - IS_ALIGNED(dst_argb, 4) && IS_ALIGNED(dst_stride, 4)) { - InterpolateRow = InterpolateRow_MIPS_DSPR2; - } -#endif - if (src_width >= 32768) { - ScaleARGBFilterCols = filtering ? - ScaleARGBFilterCols64_C : ScaleARGBCols64_C; - } -#if defined(HAS_SCALEARGBFILTERCOLS_SSSE3) - if (filtering && TestCpuFlag(kCpuHasSSSE3) && src_width < 32768) { - ScaleARGBFilterCols = ScaleARGBFilterCols_SSSE3; - } -#endif -#if defined(HAS_SCALEARGBCOLS_SSE2) - if (!filtering && TestCpuFlag(kCpuHasSSE2) && src_width < 32768) { - ScaleARGBFilterCols = ScaleARGBCols_SSE2; - } -#endif - if (!filtering && src_width * 2 == dst_width && x < 0x8000) { - ScaleARGBFilterCols = ScaleARGBColsUp2_C; -#if defined(HAS_SCALEARGBCOLSUP2_SSE2) - if (TestCpuFlag(kCpuHasSSE2) && IS_ALIGNED(dst_width, 8) && - IS_ALIGNED(src_argb, 16) && IS_ALIGNED(src_stride, 16) && - IS_ALIGNED(dst_argb, 16) && IS_ALIGNED(dst_stride, 16)) { - ScaleARGBFilterCols = ScaleARGBColsUp2_SSE2; - } -#endif - } - - if (y > max_y) { - y = max_y; - } - - { - int yi = y >> 16; - const uint8* src = src_argb + yi * src_stride; - - // Allocate 2 rows of ARGB. - const int kRowSize = (dst_width * 4 + 15) & ~15; - align_buffer_64(row, kRowSize * 2); - - uint8* rowptr = row; - int rowstride = kRowSize; - int lasty = yi; - - ScaleARGBFilterCols(rowptr, src, dst_width, x, dx); - if (src_height > 1) { - src += src_stride; - } - ScaleARGBFilterCols(rowptr + rowstride, src, dst_width, x, dx); - src += src_stride; - - for (j = 0; j < dst_height; ++j) { - yi = y >> 16; - if (yi != lasty) { - if (y > max_y) { - y = max_y; - yi = y >> 16; - src = src_argb + yi * src_stride; - } - if (yi != lasty) { - ScaleARGBFilterCols(rowptr, src, dst_width, x, dx); - rowptr += rowstride; - rowstride = -rowstride; - lasty = yi; - src += src_stride; - } - } - if (filtering == kFilterLinear) { - InterpolateRow(dst_argb, rowptr, 0, dst_width * 4, 0); - } else { - int yf = (y >> 8) & 255; - InterpolateRow(dst_argb, rowptr, rowstride, dst_width * 4, yf); - } - dst_argb += dst_stride; - y += dy; - } - free_aligned_buffer_64(row); - } -} - -#ifdef YUVSCALEUP -// Scale YUV to ARGB up with bilinear interpolation. -static void ScaleYUVToARGBBilinearUp(int src_width, int src_height, - int dst_width, int dst_height, - int src_stride_y, - int src_stride_u, - int src_stride_v, - int dst_stride_argb, - const uint8* src_y, - const uint8* src_u, - const uint8* src_v, - 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, - uint8* rgb_buf, - int width) = I422ToARGBRow_C; -#if defined(HAS_I422TOARGBROW_SSSE3) - if (TestCpuFlag(kCpuHasSSSE3) && src_width >= 8) { - I422ToARGBRow = I422ToARGBRow_Any_SSSE3; - if (IS_ALIGNED(src_width, 8)) { - I422ToARGBRow = I422ToARGBRow_Unaligned_SSSE3; - if (IS_ALIGNED(dst_argb, 16) && IS_ALIGNED(dst_stride_argb, 16)) { - I422ToARGBRow = I422ToARGBRow_SSSE3; - } - } - } -#endif -#if defined(HAS_I422TOARGBROW_AVX2) - if (TestCpuFlag(kCpuHasAVX2) && src_width >= 16) { - I422ToARGBRow = I422ToARGBRow_Any_AVX2; - if (IS_ALIGNED(src_width, 16)) { - I422ToARGBRow = I422ToARGBRow_AVX2; - } - } -#endif -#if defined(HAS_I422TOARGBROW_NEON) - if (TestCpuFlag(kCpuHasNEON) && src_width >= 8) { - I422ToARGBRow = I422ToARGBRow_Any_NEON; - if (IS_ALIGNED(src_width, 8)) { - I422ToARGBRow = I422ToARGBRow_NEON; - } - } -#endif -#if defined(HAS_I422TOARGBROW_MIPS_DSPR2) - if (TestCpuFlag(kCpuHasMIPS_DSPR2) && IS_ALIGNED(src_width, 4) && - IS_ALIGNED(src_y, 4) && IS_ALIGNED(src_stride_y, 4) && - IS_ALIGNED(src_u, 2) && IS_ALIGNED(src_stride_u, 2) && - IS_ALIGNED(src_v, 2) && IS_ALIGNED(src_stride_v, 2) && - IS_ALIGNED(dst_argb, 4) && IS_ALIGNED(dst_stride_argb, 4)) { - I422ToARGBRow = I422ToARGBRow_MIPS_DSPR2; - } -#endif - - void (*InterpolateRow)(uint8* dst_argb, const uint8* src_argb, - ptrdiff_t src_stride, int dst_width, int source_y_fraction) = - InterpolateRow_C; -#if defined(HAS_INTERPOLATEROW_SSE2) - if (TestCpuFlag(kCpuHasSSE2) && dst_width >= 4) { - InterpolateRow = InterpolateRow_Any_SSE2; - if (IS_ALIGNED(dst_width, 4)) { - InterpolateRow = InterpolateRow_Unaligned_SSE2; - if (IS_ALIGNED(dst_argb, 16) && IS_ALIGNED(dst_stride_argb, 16)) { - InterpolateRow = InterpolateRow_SSE2; - } - } - } -#endif -#if defined(HAS_INTERPOLATEROW_SSSE3) - if (TestCpuFlag(kCpuHasSSSE3) && dst_width >= 4) { - InterpolateRow = InterpolateRow_Any_SSSE3; - if (IS_ALIGNED(dst_width, 4)) { - InterpolateRow = InterpolateRow_Unaligned_SSSE3; - if (IS_ALIGNED(dst_argb, 16) && IS_ALIGNED(dst_stride_argb, 16)) { - InterpolateRow = InterpolateRow_SSSE3; - } - } - } -#endif -#if defined(HAS_INTERPOLATEROW_AVX2) - if (TestCpuFlag(kCpuHasAVX2) && dst_width >= 8) { - InterpolateRow = InterpolateRow_Any_AVX2; - if (IS_ALIGNED(dst_width, 8)) { - InterpolateRow = InterpolateRow_AVX2; - } - } -#endif -#if defined(HAS_INTERPOLATEROW_NEON) - if (TestCpuFlag(kCpuHasNEON) && dst_width >= 4) { - InterpolateRow = InterpolateRow_Any_NEON; - if (IS_ALIGNED(dst_width, 4)) { - InterpolateRow = InterpolateRow_NEON; - } - } -#endif -#if defined(HAS_INTERPOLATEROWS_MIPS_DSPR2) - if (TestCpuFlag(kCpuHasMIPS_DSPR2) && dst_width >= 1 && - IS_ALIGNED(dst_argb, 4) && IS_ALIGNED(dst_stride_argb, 4)) { - 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; - } -#if defined(HAS_SCALEARGBFILTERCOLS_SSSE3) - if (filtering && TestCpuFlag(kCpuHasSSSE3) && src_width < 32768) { - ScaleARGBFilterCols = ScaleARGBFilterCols_SSSE3; - } -#endif -#if defined(HAS_SCALEARGBCOLS_SSE2) - if (!filtering && TestCpuFlag(kCpuHasSSE2) && src_width < 32768) { - ScaleARGBFilterCols = ScaleARGBCols_SSE2; - } -#endif - if (!filtering && src_width * 2 == dst_width && x < 0x8000) { - ScaleARGBFilterCols = ScaleARGBColsUp2_C; -#if defined(HAS_SCALEARGBCOLSUP2_SSE2) - if (TestCpuFlag(kCpuHasSSE2) && IS_ALIGNED(dst_width, 8) && - IS_ALIGNED(src_argb, 16) && IS_ALIGNED(src_stride, 16) && - IS_ALIGNED(dst_argb, 16) && IS_ALIGNED(dst_stride, 16)) { - ScaleARGBFilterCols = ScaleARGBColsUp2_SSE2; - } -#endif - } - - const int max_y = (src_height - 1) << 16; - if (y > max_y) { - y = max_y; - } - const int kYShift = 1; // Shift Y by 1 to convert Y plane to UV coordinate. - int yi = y >> 16; - int uv_yi = yi >> kYShift; - const uint8* src_row_y = src_y + yi * src_stride_y; - const uint8* src_row_u = src_u + uv_yi * src_stride_u; - const uint8* src_row_v = src_v + uv_yi * src_stride_v; - - // Allocate 2 rows of ARGB. - const int kRowSize = (dst_width * 4 + 15) & ~15; - align_buffer_64(row, kRowSize * 2); - - // Allocate 1 row of ARGB for source conversion. - align_buffer_64(argb_row, src_width * 4); - - uint8* rowptr = row; - int rowstride = kRowSize; - int lasty = yi; - - // TODO(fbarchard): Convert first 2 rows of YUV to ARGB. - ScaleARGBFilterCols(rowptr, src_row_y, dst_width, x, dx); - if (src_height > 1) { - src_row_y += src_stride_y; - if (yi & 1) { - src_row_u += src_stride_u; - src_row_v += src_stride_v; - } - } - ScaleARGBFilterCols(rowptr + rowstride, src_row_y, dst_width, x, dx); - if (src_height > 2) { - src_row_y += src_stride_y; - if (!(yi & 1)) { - src_row_u += src_stride_u; - src_row_v += src_stride_v; - } - } - - for (j = 0; j < dst_height; ++j) { - yi = y >> 16; - if (yi != lasty) { - if (y > max_y) { - y = max_y; - yi = y >> 16; - uv_yi = yi >> kYShift; - src_row_y = src_y + yi * src_stride_y; - src_row_u = src_u + uv_yi * src_stride_u; - src_row_v = src_v + uv_yi * src_stride_v; - } - if (yi != lasty) { - // TODO(fbarchard): Convert the clipped region of row. - I422ToARGBRow(src_row_y, src_row_u, src_row_v, argb_row, src_width); - ScaleARGBFilterCols(rowptr, argb_row, dst_width, x, dx); - rowptr += rowstride; - rowstride = -rowstride; - lasty = yi; - src_row_y += src_stride_y; - if (yi & 1) { - src_row_u += src_stride_u; - src_row_v += src_stride_v; - } - } - } - if (filtering == kFilterLinear) { - InterpolateRow(dst_argb, rowptr, 0, dst_width * 4, 0); - } else { - int yf = (y >> 8) & 255; - InterpolateRow(dst_argb, rowptr, rowstride, dst_width * 4, yf); - } - dst_argb += dst_stride_argb; - y += dy; - } - free_aligned_buffer_64(row); - free_aligned_buffer_64(row_argb); -} -#endif - -// Scale ARGB to/from any dimensions, without interpolation. -// Fixed point math is used for performance: The upper 16 bits -// of x and dx is the integer part of the source position and -// the lower 16 bits are the fixed decimal part. - -static void ScaleARGBSimple(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, - 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; -#if defined(HAS_SCALEARGBCOLS_SSE2) - if (TestCpuFlag(kCpuHasSSE2) && src_width < 32768) { - ScaleARGBCols = ScaleARGBCols_SSE2; - } -#endif - if (src_width * 2 == dst_width && x < 0x8000) { - ScaleARGBCols = ScaleARGBColsUp2_C; -#if defined(HAS_SCALEARGBCOLSUP2_SSE2) - if (TestCpuFlag(kCpuHasSSE2) && IS_ALIGNED(dst_width, 8) && - IS_ALIGNED(src_argb, 16) && IS_ALIGNED(src_stride, 16) && - IS_ALIGNED(dst_argb, 16) && IS_ALIGNED(dst_stride, 16)) { - ScaleARGBCols = ScaleARGBColsUp2_SSE2; - } -#endif - } - - for (j = 0; j < dst_height; ++j) { - ScaleARGBCols(dst_argb, src_argb + (y >> 16) * src_stride, - dst_width, x, dx); - dst_argb += dst_stride; - y += dy; - } -} - -// ScaleARGB a ARGB. -// This function in turn calls a scaling function -// suitable for handling the desired resolutions. -static void ScaleARGB(const uint8* src, int src_stride, - int src_width, int src_height, - uint8* dst, int dst_stride, - int dst_width, int dst_height, - int clip_x, int clip_y, int clip_width, int clip_height, - enum FilterMode filtering) { - // Initial source x/y coordinate and step values as 16.16 fixed point. - int x = 0; - int y = 0; - int dx = 0; - int dy = 0; - // ARGB does not support box filter yet, but allow the user to pass it. - // Simplify filtering when possible. - filtering = ScaleFilterReduce(src_width, src_height, - dst_width, dst_height, - filtering); - - // Negative src_height means invert the image. - if (src_height < 0) { - src_height = -src_height; - src = src + (src_height - 1) * src_stride; - src_stride = -src_stride; - } - ScaleSlope(src_width, src_height, dst_width, dst_height, filtering, - &x, &y, &dx, &dy); - src_width = Abs(src_width); - if (clip_x) { - int64 clipf = (int64)(clip_x) * dx; - x += (clipf & 0xffff); - src += (clipf >> 16) * 4; - dst += clip_x * 4; - } - if (clip_y) { - int64 clipf = (int64)(clip_y) * dy; - y += (clipf & 0xffff); - src += (clipf >> 16) * src_stride; - dst += clip_y * dst_stride; - } - - // Special case for integer step values. - if (((dx | dy) & 0xffff) == 0) { - if (!dx || !dy) { // 1 pixel wide and/or tall. - filtering = kFilterNone; - } else { - // Optimized even scale down. ie 2, 4, 6, 8, 10x. - if (!(dx & 0x10000) && !(dy & 0x10000)) { - if (dx == 0x20000) { - // Optimized 1/2 downsample. - ScaleARGBDown2(src_width, src_height, - clip_width, clip_height, - src_stride, dst_stride, src, dst, - x, dx, y, dy, filtering); - return; - } - if (dx == 0x40000 && filtering == kFilterBox) { - // Optimized 1/4 box downsample. - ScaleARGBDown4Box(src_width, src_height, - clip_width, clip_height, - src_stride, dst_stride, src, dst, - x, dx, y, dy); - return; - } - ScaleARGBDownEven(src_width, src_height, - clip_width, clip_height, - src_stride, dst_stride, src, dst, - x, dx, y, dy, filtering); - return; - } - // Optimized odd scale down. ie 3, 5, 7, 9x. - if ((dx & 0x10000) && (dy & 0x10000)) { - filtering = kFilterNone; - if (dx == 0x10000 && dy == 0x10000) { - // Straight copy. - ARGBCopy(src + (y >> 16) * src_stride + (x >> 16) * 4, src_stride, - dst, dst_stride, clip_width, clip_height); - return; - } - } - } - } - if (dx == 0x10000 && (x & 0xffff) == 0) { - // Arbitrary scale vertically, but unscaled vertically. - ScalePlaneVertical(src_height, - clip_width, clip_height, - src_stride, dst_stride, src, dst, - x, y, dy, 4, filtering); - return; - } - if (filtering && dy < 65536) { - ScaleARGBBilinearUp(src_width, src_height, - clip_width, clip_height, - src_stride, dst_stride, src, dst, - x, dx, y, dy, filtering); - return; - } - if (filtering) { - ScaleARGBBilinearDown(src_width, src_height, - clip_width, clip_height, - src_stride, dst_stride, src, dst, - x, dx, y, dy, filtering); - return; - } - ScaleARGBSimple(src_width, src_height, clip_width, clip_height, - src_stride, dst_stride, src, dst, - x, dx, y, dy); -} - -LIBYUV_API -int ARGBScaleClip(const uint8* src_argb, int src_stride_argb, - int src_width, int src_height, - uint8* dst_argb, int dst_stride_argb, - int dst_width, int dst_height, - int clip_x, int clip_y, int clip_width, int clip_height, - enum FilterMode filtering) { - if (!src_argb || src_width == 0 || src_height == 0 || - !dst_argb || dst_width <= 0 || dst_height <= 0 || - clip_x < 0 || clip_y < 0 || - (clip_x + clip_width) > dst_width || - (clip_y + clip_height) > dst_height) { - return -1; - } - ScaleARGB(src_argb, src_stride_argb, src_width, src_height, - dst_argb, dst_stride_argb, dst_width, dst_height, - clip_x, clip_y, clip_width, clip_height, filtering); - return 0; -} - -// Scale an ARGB image. -LIBYUV_API -int ARGBScale(const uint8* src_argb, int src_stride_argb, - int src_width, int src_height, - uint8* dst_argb, int dst_stride_argb, - int dst_width, int dst_height, - enum FilterMode filtering) { - if (!src_argb || src_width == 0 || src_height == 0 || - !dst_argb || dst_width <= 0 || dst_height <= 0) { - return -1; - } - ScaleARGB(src_argb, src_stride_argb, src_width, src_height, - dst_argb, dst_stride_argb, dst_width, dst_height, - 0, 0, dst_width, dst_height, filtering); - return 0; -} - -#ifdef __cplusplus -} // extern "C" -} // namespace libyuv -#endif |