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Unified Diff: media/base/simd/convert_yuv_to_rgb_c.cc

Issue 2694113002: Delete media/base/yuv_convert and dependents. Prefer libyuv. (Closed)
Patch Set: Fix media_unittests. Created 3 years, 10 months ago
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Index: media/base/simd/convert_yuv_to_rgb_c.cc
diff --git a/media/base/simd/convert_yuv_to_rgb_c.cc b/media/base/simd/convert_yuv_to_rgb_c.cc
deleted file mode 100644
index f4345df3d1994a52e51bc6f42dd3209540183403..0000000000000000000000000000000000000000
--- a/media/base/simd/convert_yuv_to_rgb_c.cc
+++ /dev/null
@@ -1,277 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include "build/build_config.h"
-#include "media/base/simd/convert_yuv_to_rgb.h"
-
-namespace media {
-
-#define packuswb(x) ((x) < 0 ? 0 : ((x) > 255 ? 255 : (x)))
-#define paddsw(x, y) (((x) + (y)) < -32768 ? -32768 : \
- (((x) + (y)) > 32767 ? 32767 : ((x) + (y))))
-
-// On Android, pixel layout is RGBA (see skia/include/core/SkColorPriv.h);
-// however, other Chrome platforms use BGRA (see skia/config/SkUserConfig.h).
-// Ideally, android should not use the functions here due to performance issue
-// (http://crbug.com/249980).
-#if defined(OS_ANDROID)
-#define SK_R32_SHIFT 0
-#define SK_G32_SHIFT 8
-#define SK_B32_SHIFT 16
-#define SK_A32_SHIFT 24
-#define R_INDEX 0
-#define G_INDEX 1
-#define B_INDEX 2
-#define A_INDEX 3
-#else
-#define SK_B32_SHIFT 0
-#define SK_G32_SHIFT 8
-#define SK_R32_SHIFT 16
-#define SK_A32_SHIFT 24
-#define B_INDEX 0
-#define G_INDEX 1
-#define R_INDEX 2
-#define A_INDEX 3
-#endif
-
-static inline void ConvertYUVToRGB32_C(uint8_t y,
- uint8_t u,
- uint8_t v,
- uint8_t* rgb_buf,
- const int16_t* convert_table) {
- int b = convert_table[4 * (256 + u) + B_INDEX];
- int g = convert_table[4 * (256 + u) + G_INDEX];
- int r = convert_table[4 * (256 + u) + R_INDEX];
- int a = convert_table[4 * (256 + u) + A_INDEX];
-
- b = paddsw(b, convert_table[4 * (512 + v) + B_INDEX]);
- g = paddsw(g, convert_table[4 * (512 + v) + G_INDEX]);
- r = paddsw(r, convert_table[4 * (512 + v) + R_INDEX]);
- a = paddsw(a, convert_table[4 * (512 + v) + A_INDEX]);
-
- b = paddsw(b, convert_table[4 * y + B_INDEX]);
- g = paddsw(g, convert_table[4 * y + G_INDEX]);
- r = paddsw(r, convert_table[4 * y + R_INDEX]);
- a = paddsw(a, convert_table[4 * y + A_INDEX]);
-
- b >>= 6;
- g >>= 6;
- r >>= 6;
- a >>= 6;
-
- *reinterpret_cast<uint32_t*>(rgb_buf) =
- (packuswb(b) << SK_B32_SHIFT) | (packuswb(g) << SK_G32_SHIFT) |
- (packuswb(r) << SK_R32_SHIFT) | (packuswb(a) << SK_A32_SHIFT);
-}
-
-static inline void ConvertYUVAToARGB_C(uint8_t y,
- uint8_t u,
- uint8_t v,
- uint8_t a,
- uint8_t* rgb_buf,
- const int16_t* convert_table) {
- int b = convert_table[4 * (256 + u) + 0];
- int g = convert_table[4 * (256 + u) + 1];
- int r = convert_table[4 * (256 + u) + 2];
-
- b = paddsw(b, convert_table[4 * (512 + v) + 0]);
- g = paddsw(g, convert_table[4 * (512 + v) + 1]);
- r = paddsw(r, convert_table[4 * (512 + v) + 2]);
-
- b = paddsw(b, convert_table[4 * y + 0]);
- g = paddsw(g, convert_table[4 * y + 1]);
- r = paddsw(r, convert_table[4 * y + 2]);
-
- b >>= 6;
- g >>= 6;
- r >>= 6;
-
- b = packuswb(b) * a >> 8;
- g = packuswb(g) * a >> 8;
- r = packuswb(r) * a >> 8;
-
- *reinterpret_cast<uint32_t*>(rgb_buf) =
- (b << SK_B32_SHIFT) | (g << SK_G32_SHIFT) | (r << SK_R32_SHIFT) |
- (a << SK_A32_SHIFT);
-}
-
-void ConvertYUVToRGB32Row_C(const uint8_t* y_buf,
- const uint8_t* u_buf,
- const uint8_t* v_buf,
- uint8_t* rgb_buf,
- ptrdiff_t width,
- const int16_t* convert_table) {
- for (int x = 0; x < width; x += 2) {
- uint8_t u = u_buf[x >> 1];
- uint8_t v = v_buf[x >> 1];
- uint8_t y0 = y_buf[x];
- ConvertYUVToRGB32_C(y0, u, v, rgb_buf, convert_table);
- if ((x + 1) < width) {
- uint8_t y1 = y_buf[x + 1];
- ConvertYUVToRGB32_C(y1, u, v, rgb_buf + 4, convert_table);
- }
- rgb_buf += 8; // Advance 2 pixels.
- }
-}
-
-void ConvertYUVAToARGBRow_C(const uint8_t* y_buf,
- const uint8_t* u_buf,
- const uint8_t* v_buf,
- const uint8_t* a_buf,
- uint8_t* rgba_buf,
- ptrdiff_t width,
- const int16_t* convert_table) {
- for (int x = 0; x < width; x += 2) {
- uint8_t u = u_buf[x >> 1];
- uint8_t v = v_buf[x >> 1];
- uint8_t y0 = y_buf[x];
- uint8_t a0 = a_buf[x];
- ConvertYUVAToARGB_C(y0, u, v, a0, rgba_buf, convert_table);
- if ((x + 1) < width) {
- uint8_t y1 = y_buf[x + 1];
- uint8_t a1 = a_buf[x + 1];
- ConvertYUVAToARGB_C(y1, u, v, a1, rgba_buf + 4, convert_table);
- }
- rgba_buf += 8; // Advance 2 pixels.
- }
-}
-
-// 16.16 fixed point is used. A shift by 16 isolates the integer.
-// A shift by 17 is used to further subsample the chrominence channels.
-// & 0xffff isolates the fixed point fraction. >> 2 to get the upper 2 bits,
-// for 1/65536 pixel accurate interpolation.
-void ScaleYUVToRGB32Row_C(const uint8_t* y_buf,
- const uint8_t* u_buf,
- const uint8_t* v_buf,
- uint8_t* rgb_buf,
- ptrdiff_t width,
- ptrdiff_t source_dx,
- const int16_t* convert_table) {
- int x = 0;
- for (int i = 0; i < width; i += 2) {
- int y = y_buf[x >> 16];
- int u = u_buf[(x >> 17)];
- int v = v_buf[(x >> 17)];
- ConvertYUVToRGB32_C(y, u, v, rgb_buf, convert_table);
- x += source_dx;
- if ((i + 1) < width) {
- y = y_buf[x >> 16];
- ConvertYUVToRGB32_C(y, u, v, rgb_buf+4, convert_table);
- x += source_dx;
- }
- rgb_buf += 8;
- }
-}
-
-void LinearScaleYUVToRGB32Row_C(const uint8_t* y_buf,
- const uint8_t* u_buf,
- const uint8_t* v_buf,
- uint8_t* rgb_buf,
- ptrdiff_t width,
- ptrdiff_t source_dx,
- const int16_t* convert_table) {
- // Avoid point-sampling for down-scaling by > 2:1.
- int source_x = 0;
- if (source_dx >= 0x20000)
- source_x += 0x8000;
- LinearScaleYUVToRGB32RowWithRange_C(y_buf, u_buf, v_buf, rgb_buf, width,
- source_x, source_dx, convert_table);
-}
-
-void LinearScaleYUVToRGB32RowWithRange_C(const uint8_t* y_buf,
- const uint8_t* u_buf,
- const uint8_t* v_buf,
- uint8_t* rgb_buf,
- int dest_width,
- int x,
- int source_dx,
- const int16_t* convert_table) {
- for (int i = 0; i < dest_width; i += 2) {
- int y0 = y_buf[x >> 16];
- int y1 = y_buf[(x >> 16) + 1];
- int u0 = u_buf[(x >> 17)];
- int u1 = u_buf[(x >> 17) + 1];
- int v0 = v_buf[(x >> 17)];
- int v1 = v_buf[(x >> 17) + 1];
- int y_frac = (x & 65535);
- int uv_frac = ((x >> 1) & 65535);
- int y = (y_frac * y1 + (y_frac ^ 65535) * y0) >> 16;
- int u = (uv_frac * u1 + (uv_frac ^ 65535) * u0) >> 16;
- int v = (uv_frac * v1 + (uv_frac ^ 65535) * v0) >> 16;
- ConvertYUVToRGB32_C(y, u, v, rgb_buf, convert_table);
- x += source_dx;
- if ((i + 1) < dest_width) {
- y0 = y_buf[x >> 16];
- y1 = y_buf[(x >> 16) + 1];
- y_frac = (x & 65535);
- y = (y_frac * y1 + (y_frac ^ 65535) * y0) >> 16;
- ConvertYUVToRGB32_C(y, u, v, rgb_buf+4, convert_table);
- x += source_dx;
- }
- rgb_buf += 8;
- }
-}
-
-void ConvertYUVToRGB32_C(const uint8_t* yplane,
- const uint8_t* uplane,
- const uint8_t* vplane,
- uint8_t* rgbframe,
- int width,
- int height,
- int ystride,
- int uvstride,
- int rgbstride,
- YUVType yuv_type) {
- unsigned int y_shift = GetVerticalShift(yuv_type);
- const int16_t* lookup_table = GetLookupTable(yuv_type);
- for (int y = 0; y < height; ++y) {
- uint8_t* rgb_row = rgbframe + y * rgbstride;
- const uint8_t* y_ptr = yplane + y * ystride;
- const uint8_t* u_ptr = uplane + (y >> y_shift) * uvstride;
- const uint8_t* v_ptr = vplane + (y >> y_shift) * uvstride;
-
- ConvertYUVToRGB32Row_C(y_ptr,
- u_ptr,
- v_ptr,
- rgb_row,
- width,
- lookup_table);
- }
-}
-
-void ConvertYUVAToARGB_C(const uint8_t* yplane,
- const uint8_t* uplane,
- const uint8_t* vplane,
- const uint8_t* aplane,
- uint8_t* rgbaframe,
- int width,
- int height,
- int ystride,
- int uvstride,
- int astride,
- int rgbastride,
- YUVType yuv_type) {
- unsigned int y_shift = GetVerticalShift(yuv_type);
- const int16_t* lookup_table = GetLookupTable(yuv_type);
- for (int y = 0; y < height; y++) {
- uint8_t* rgba_row = rgbaframe + y * rgbastride;
- const uint8_t* y_ptr = yplane + y * ystride;
- const uint8_t* u_ptr = uplane + (y >> y_shift) * uvstride;
- const uint8_t* v_ptr = vplane + (y >> y_shift) * uvstride;
- const uint8_t* a_ptr = aplane + y * astride;
-
- ConvertYUVAToARGBRow_C(y_ptr,
- u_ptr,
- v_ptr,
- a_ptr,
- rgba_row,
- width,
- lookup_table);
- }
-}
-
-} // namespace media
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