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-rw-r--r--media/base/yuv_row_posix.cc1219
1 files changed, 1219 insertions, 0 deletions
diff --git a/media/base/yuv_row_posix.cc b/media/base/yuv_row_posix.cc
new file mode 100644
index 0000000..54ab715
--- /dev/null
+++ b/media/base/yuv_row_posix.cc
@@ -0,0 +1,1219 @@
+// Copyright (c) 2010 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 "media/base/yuv_row.h"
+
+#ifdef _DEBUG
+#include "base/logging.h"
+#else
+#define DCHECK(a)
+#endif
+
+extern "C" {
+#if USE_MMX
+
+#define RGBY(i) { \
+ static_cast<int16>(1.164 * 64 * (i - 16) + 0.5), \
+ static_cast<int16>(1.164 * 64 * (i - 16) + 0.5), \
+ static_cast<int16>(1.164 * 64 * (i - 16) + 0.5), \
+ 0 \
+}
+
+#define RGBU(i) { \
+ static_cast<int16>(2.018 * 64 * (i - 128) + 0.5), \
+ static_cast<int16>(-0.391 * 64 * (i - 128) + 0.5), \
+ 0, \
+ static_cast<int16>(256 * 64 - 1) \
+}
+
+#define RGBV(i) { \
+ 0, \
+ static_cast<int16>(-0.813 * 64 * (i - 128) + 0.5), \
+ static_cast<int16>(1.596 * 64 * (i - 128) + 0.5), \
+ 0 \
+}
+
+#define MMX_ALIGNED(var) var __attribute__((aligned(16)))
+
+
+MMX_ALIGNED(int16 kCoefficientsRgbY[768][4]) = {
+ RGBY(0x00), RGBY(0x01), RGBY(0x02), RGBY(0x03),
+ RGBY(0x04), RGBY(0x05), RGBY(0x06), RGBY(0x07),
+ RGBY(0x08), RGBY(0x09), RGBY(0x0A), RGBY(0x0B),
+ RGBY(0x0C), RGBY(0x0D), RGBY(0x0E), RGBY(0x0F),
+ RGBY(0x10), RGBY(0x11), RGBY(0x12), RGBY(0x13),
+ RGBY(0x14), RGBY(0x15), RGBY(0x16), RGBY(0x17),
+ RGBY(0x18), RGBY(0x19), RGBY(0x1A), RGBY(0x1B),
+ RGBY(0x1C), RGBY(0x1D), RGBY(0x1E), RGBY(0x1F),
+ RGBY(0x20), RGBY(0x21), RGBY(0x22), RGBY(0x23),
+ RGBY(0x24), RGBY(0x25), RGBY(0x26), RGBY(0x27),
+ RGBY(0x28), RGBY(0x29), RGBY(0x2A), RGBY(0x2B),
+ RGBY(0x2C), RGBY(0x2D), RGBY(0x2E), RGBY(0x2F),
+ RGBY(0x30), RGBY(0x31), RGBY(0x32), RGBY(0x33),
+ RGBY(0x34), RGBY(0x35), RGBY(0x36), RGBY(0x37),
+ RGBY(0x38), RGBY(0x39), RGBY(0x3A), RGBY(0x3B),
+ RGBY(0x3C), RGBY(0x3D), RGBY(0x3E), RGBY(0x3F),
+ RGBY(0x40), RGBY(0x41), RGBY(0x42), RGBY(0x43),
+ RGBY(0x44), RGBY(0x45), RGBY(0x46), RGBY(0x47),
+ RGBY(0x48), RGBY(0x49), RGBY(0x4A), RGBY(0x4B),
+ RGBY(0x4C), RGBY(0x4D), RGBY(0x4E), RGBY(0x4F),
+ RGBY(0x50), RGBY(0x51), RGBY(0x52), RGBY(0x53),
+ RGBY(0x54), RGBY(0x55), RGBY(0x56), RGBY(0x57),
+ RGBY(0x58), RGBY(0x59), RGBY(0x5A), RGBY(0x5B),
+ RGBY(0x5C), RGBY(0x5D), RGBY(0x5E), RGBY(0x5F),
+ RGBY(0x60), RGBY(0x61), RGBY(0x62), RGBY(0x63),
+ RGBY(0x64), RGBY(0x65), RGBY(0x66), RGBY(0x67),
+ RGBY(0x68), RGBY(0x69), RGBY(0x6A), RGBY(0x6B),
+ RGBY(0x6C), RGBY(0x6D), RGBY(0x6E), RGBY(0x6F),
+ RGBY(0x70), RGBY(0x71), RGBY(0x72), RGBY(0x73),
+ RGBY(0x74), RGBY(0x75), RGBY(0x76), RGBY(0x77),
+ RGBY(0x78), RGBY(0x79), RGBY(0x7A), RGBY(0x7B),
+ RGBY(0x7C), RGBY(0x7D), RGBY(0x7E), RGBY(0x7F),
+ RGBY(0x80), RGBY(0x81), RGBY(0x82), RGBY(0x83),
+ RGBY(0x84), RGBY(0x85), RGBY(0x86), RGBY(0x87),
+ RGBY(0x88), RGBY(0x89), RGBY(0x8A), RGBY(0x8B),
+ RGBY(0x8C), RGBY(0x8D), RGBY(0x8E), RGBY(0x8F),
+ RGBY(0x90), RGBY(0x91), RGBY(0x92), RGBY(0x93),
+ RGBY(0x94), RGBY(0x95), RGBY(0x96), RGBY(0x97),
+ RGBY(0x98), RGBY(0x99), RGBY(0x9A), RGBY(0x9B),
+ RGBY(0x9C), RGBY(0x9D), RGBY(0x9E), RGBY(0x9F),
+ RGBY(0xA0), RGBY(0xA1), RGBY(0xA2), RGBY(0xA3),
+ RGBY(0xA4), RGBY(0xA5), RGBY(0xA6), RGBY(0xA7),
+ RGBY(0xA8), RGBY(0xA9), RGBY(0xAA), RGBY(0xAB),
+ RGBY(0xAC), RGBY(0xAD), RGBY(0xAE), RGBY(0xAF),
+ RGBY(0xB0), RGBY(0xB1), RGBY(0xB2), RGBY(0xB3),
+ RGBY(0xB4), RGBY(0xB5), RGBY(0xB6), RGBY(0xB7),
+ RGBY(0xB8), RGBY(0xB9), RGBY(0xBA), RGBY(0xBB),
+ RGBY(0xBC), RGBY(0xBD), RGBY(0xBE), RGBY(0xBF),
+ RGBY(0xC0), RGBY(0xC1), RGBY(0xC2), RGBY(0xC3),
+ RGBY(0xC4), RGBY(0xC5), RGBY(0xC6), RGBY(0xC7),
+ RGBY(0xC8), RGBY(0xC9), RGBY(0xCA), RGBY(0xCB),
+ RGBY(0xCC), RGBY(0xCD), RGBY(0xCE), RGBY(0xCF),
+ RGBY(0xD0), RGBY(0xD1), RGBY(0xD2), RGBY(0xD3),
+ RGBY(0xD4), RGBY(0xD5), RGBY(0xD6), RGBY(0xD7),
+ RGBY(0xD8), RGBY(0xD9), RGBY(0xDA), RGBY(0xDB),
+ RGBY(0xDC), RGBY(0xDD), RGBY(0xDE), RGBY(0xDF),
+ RGBY(0xE0), RGBY(0xE1), RGBY(0xE2), RGBY(0xE3),
+ RGBY(0xE4), RGBY(0xE5), RGBY(0xE6), RGBY(0xE7),
+ RGBY(0xE8), RGBY(0xE9), RGBY(0xEA), RGBY(0xEB),
+ RGBY(0xEC), RGBY(0xED), RGBY(0xEE), RGBY(0xEF),
+ RGBY(0xF0), RGBY(0xF1), RGBY(0xF2), RGBY(0xF3),
+ RGBY(0xF4), RGBY(0xF5), RGBY(0xF6), RGBY(0xF7),
+ RGBY(0xF8), RGBY(0xF9), RGBY(0xFA), RGBY(0xFB),
+ RGBY(0xFC), RGBY(0xFD), RGBY(0xFE), RGBY(0xFF),
+
+ // Chroma U table.
+ RGBU(0x00), RGBU(0x01), RGBU(0x02), RGBU(0x03),
+ RGBU(0x04), RGBU(0x05), RGBU(0x06), RGBU(0x07),
+ RGBU(0x08), RGBU(0x09), RGBU(0x0A), RGBU(0x0B),
+ RGBU(0x0C), RGBU(0x0D), RGBU(0x0E), RGBU(0x0F),
+ RGBU(0x10), RGBU(0x11), RGBU(0x12), RGBU(0x13),
+ RGBU(0x14), RGBU(0x15), RGBU(0x16), RGBU(0x17),
+ RGBU(0x18), RGBU(0x19), RGBU(0x1A), RGBU(0x1B),
+ RGBU(0x1C), RGBU(0x1D), RGBU(0x1E), RGBU(0x1F),
+ RGBU(0x20), RGBU(0x21), RGBU(0x22), RGBU(0x23),
+ RGBU(0x24), RGBU(0x25), RGBU(0x26), RGBU(0x27),
+ RGBU(0x28), RGBU(0x29), RGBU(0x2A), RGBU(0x2B),
+ RGBU(0x2C), RGBU(0x2D), RGBU(0x2E), RGBU(0x2F),
+ RGBU(0x30), RGBU(0x31), RGBU(0x32), RGBU(0x33),
+ RGBU(0x34), RGBU(0x35), RGBU(0x36), RGBU(0x37),
+ RGBU(0x38), RGBU(0x39), RGBU(0x3A), RGBU(0x3B),
+ RGBU(0x3C), RGBU(0x3D), RGBU(0x3E), RGBU(0x3F),
+ RGBU(0x40), RGBU(0x41), RGBU(0x42), RGBU(0x43),
+ RGBU(0x44), RGBU(0x45), RGBU(0x46), RGBU(0x47),
+ RGBU(0x48), RGBU(0x49), RGBU(0x4A), RGBU(0x4B),
+ RGBU(0x4C), RGBU(0x4D), RGBU(0x4E), RGBU(0x4F),
+ RGBU(0x50), RGBU(0x51), RGBU(0x52), RGBU(0x53),
+ RGBU(0x54), RGBU(0x55), RGBU(0x56), RGBU(0x57),
+ RGBU(0x58), RGBU(0x59), RGBU(0x5A), RGBU(0x5B),
+ RGBU(0x5C), RGBU(0x5D), RGBU(0x5E), RGBU(0x5F),
+ RGBU(0x60), RGBU(0x61), RGBU(0x62), RGBU(0x63),
+ RGBU(0x64), RGBU(0x65), RGBU(0x66), RGBU(0x67),
+ RGBU(0x68), RGBU(0x69), RGBU(0x6A), RGBU(0x6B),
+ RGBU(0x6C), RGBU(0x6D), RGBU(0x6E), RGBU(0x6F),
+ RGBU(0x70), RGBU(0x71), RGBU(0x72), RGBU(0x73),
+ RGBU(0x74), RGBU(0x75), RGBU(0x76), RGBU(0x77),
+ RGBU(0x78), RGBU(0x79), RGBU(0x7A), RGBU(0x7B),
+ RGBU(0x7C), RGBU(0x7D), RGBU(0x7E), RGBU(0x7F),
+ RGBU(0x80), RGBU(0x81), RGBU(0x82), RGBU(0x83),
+ RGBU(0x84), RGBU(0x85), RGBU(0x86), RGBU(0x87),
+ RGBU(0x88), RGBU(0x89), RGBU(0x8A), RGBU(0x8B),
+ RGBU(0x8C), RGBU(0x8D), RGBU(0x8E), RGBU(0x8F),
+ RGBU(0x90), RGBU(0x91), RGBU(0x92), RGBU(0x93),
+ RGBU(0x94), RGBU(0x95), RGBU(0x96), RGBU(0x97),
+ RGBU(0x98), RGBU(0x99), RGBU(0x9A), RGBU(0x9B),
+ RGBU(0x9C), RGBU(0x9D), RGBU(0x9E), RGBU(0x9F),
+ RGBU(0xA0), RGBU(0xA1), RGBU(0xA2), RGBU(0xA3),
+ RGBU(0xA4), RGBU(0xA5), RGBU(0xA6), RGBU(0xA7),
+ RGBU(0xA8), RGBU(0xA9), RGBU(0xAA), RGBU(0xAB),
+ RGBU(0xAC), RGBU(0xAD), RGBU(0xAE), RGBU(0xAF),
+ RGBU(0xB0), RGBU(0xB1), RGBU(0xB2), RGBU(0xB3),
+ RGBU(0xB4), RGBU(0xB5), RGBU(0xB6), RGBU(0xB7),
+ RGBU(0xB8), RGBU(0xB9), RGBU(0xBA), RGBU(0xBB),
+ RGBU(0xBC), RGBU(0xBD), RGBU(0xBE), RGBU(0xBF),
+ RGBU(0xC0), RGBU(0xC1), RGBU(0xC2), RGBU(0xC3),
+ RGBU(0xC4), RGBU(0xC5), RGBU(0xC6), RGBU(0xC7),
+ RGBU(0xC8), RGBU(0xC9), RGBU(0xCA), RGBU(0xCB),
+ RGBU(0xCC), RGBU(0xCD), RGBU(0xCE), RGBU(0xCF),
+ RGBU(0xD0), RGBU(0xD1), RGBU(0xD2), RGBU(0xD3),
+ RGBU(0xD4), RGBU(0xD5), RGBU(0xD6), RGBU(0xD7),
+ RGBU(0xD8), RGBU(0xD9), RGBU(0xDA), RGBU(0xDB),
+ RGBU(0xDC), RGBU(0xDD), RGBU(0xDE), RGBU(0xDF),
+ RGBU(0xE0), RGBU(0xE1), RGBU(0xE2), RGBU(0xE3),
+ RGBU(0xE4), RGBU(0xE5), RGBU(0xE6), RGBU(0xE7),
+ RGBU(0xE8), RGBU(0xE9), RGBU(0xEA), RGBU(0xEB),
+ RGBU(0xEC), RGBU(0xED), RGBU(0xEE), RGBU(0xEF),
+ RGBU(0xF0), RGBU(0xF1), RGBU(0xF2), RGBU(0xF3),
+ RGBU(0xF4), RGBU(0xF5), RGBU(0xF6), RGBU(0xF7),
+ RGBU(0xF8), RGBU(0xF9), RGBU(0xFA), RGBU(0xFB),
+ RGBU(0xFC), RGBU(0xFD), RGBU(0xFE), RGBU(0xFF),
+
+ // Chroma V table.
+ RGBV(0x00), RGBV(0x01), RGBV(0x02), RGBV(0x03),
+ RGBV(0x04), RGBV(0x05), RGBV(0x06), RGBV(0x07),
+ RGBV(0x08), RGBV(0x09), RGBV(0x0A), RGBV(0x0B),
+ RGBV(0x0C), RGBV(0x0D), RGBV(0x0E), RGBV(0x0F),
+ RGBV(0x10), RGBV(0x11), RGBV(0x12), RGBV(0x13),
+ RGBV(0x14), RGBV(0x15), RGBV(0x16), RGBV(0x17),
+ RGBV(0x18), RGBV(0x19), RGBV(0x1A), RGBV(0x1B),
+ RGBV(0x1C), RGBV(0x1D), RGBV(0x1E), RGBV(0x1F),
+ RGBV(0x20), RGBV(0x21), RGBV(0x22), RGBV(0x23),
+ RGBV(0x24), RGBV(0x25), RGBV(0x26), RGBV(0x27),
+ RGBV(0x28), RGBV(0x29), RGBV(0x2A), RGBV(0x2B),
+ RGBV(0x2C), RGBV(0x2D), RGBV(0x2E), RGBV(0x2F),
+ RGBV(0x30), RGBV(0x31), RGBV(0x32), RGBV(0x33),
+ RGBV(0x34), RGBV(0x35), RGBV(0x36), RGBV(0x37),
+ RGBV(0x38), RGBV(0x39), RGBV(0x3A), RGBV(0x3B),
+ RGBV(0x3C), RGBV(0x3D), RGBV(0x3E), RGBV(0x3F),
+ RGBV(0x40), RGBV(0x41), RGBV(0x42), RGBV(0x43),
+ RGBV(0x44), RGBV(0x45), RGBV(0x46), RGBV(0x47),
+ RGBV(0x48), RGBV(0x49), RGBV(0x4A), RGBV(0x4B),
+ RGBV(0x4C), RGBV(0x4D), RGBV(0x4E), RGBV(0x4F),
+ RGBV(0x50), RGBV(0x51), RGBV(0x52), RGBV(0x53),
+ RGBV(0x54), RGBV(0x55), RGBV(0x56), RGBV(0x57),
+ RGBV(0x58), RGBV(0x59), RGBV(0x5A), RGBV(0x5B),
+ RGBV(0x5C), RGBV(0x5D), RGBV(0x5E), RGBV(0x5F),
+ RGBV(0x60), RGBV(0x61), RGBV(0x62), RGBV(0x63),
+ RGBV(0x64), RGBV(0x65), RGBV(0x66), RGBV(0x67),
+ RGBV(0x68), RGBV(0x69), RGBV(0x6A), RGBV(0x6B),
+ RGBV(0x6C), RGBV(0x6D), RGBV(0x6E), RGBV(0x6F),
+ RGBV(0x70), RGBV(0x71), RGBV(0x72), RGBV(0x73),
+ RGBV(0x74), RGBV(0x75), RGBV(0x76), RGBV(0x77),
+ RGBV(0x78), RGBV(0x79), RGBV(0x7A), RGBV(0x7B),
+ RGBV(0x7C), RGBV(0x7D), RGBV(0x7E), RGBV(0x7F),
+ RGBV(0x80), RGBV(0x81), RGBV(0x82), RGBV(0x83),
+ RGBV(0x84), RGBV(0x85), RGBV(0x86), RGBV(0x87),
+ RGBV(0x88), RGBV(0x89), RGBV(0x8A), RGBV(0x8B),
+ RGBV(0x8C), RGBV(0x8D), RGBV(0x8E), RGBV(0x8F),
+ RGBV(0x90), RGBV(0x91), RGBV(0x92), RGBV(0x93),
+ RGBV(0x94), RGBV(0x95), RGBV(0x96), RGBV(0x97),
+ RGBV(0x98), RGBV(0x99), RGBV(0x9A), RGBV(0x9B),
+ RGBV(0x9C), RGBV(0x9D), RGBV(0x9E), RGBV(0x9F),
+ RGBV(0xA0), RGBV(0xA1), RGBV(0xA2), RGBV(0xA3),
+ RGBV(0xA4), RGBV(0xA5), RGBV(0xA6), RGBV(0xA7),
+ RGBV(0xA8), RGBV(0xA9), RGBV(0xAA), RGBV(0xAB),
+ RGBV(0xAC), RGBV(0xAD), RGBV(0xAE), RGBV(0xAF),
+ RGBV(0xB0), RGBV(0xB1), RGBV(0xB2), RGBV(0xB3),
+ RGBV(0xB4), RGBV(0xB5), RGBV(0xB6), RGBV(0xB7),
+ RGBV(0xB8), RGBV(0xB9), RGBV(0xBA), RGBV(0xBB),
+ RGBV(0xBC), RGBV(0xBD), RGBV(0xBE), RGBV(0xBF),
+ RGBV(0xC0), RGBV(0xC1), RGBV(0xC2), RGBV(0xC3),
+ RGBV(0xC4), RGBV(0xC5), RGBV(0xC6), RGBV(0xC7),
+ RGBV(0xC8), RGBV(0xC9), RGBV(0xCA), RGBV(0xCB),
+ RGBV(0xCC), RGBV(0xCD), RGBV(0xCE), RGBV(0xCF),
+ RGBV(0xD0), RGBV(0xD1), RGBV(0xD2), RGBV(0xD3),
+ RGBV(0xD4), RGBV(0xD5), RGBV(0xD6), RGBV(0xD7),
+ RGBV(0xD8), RGBV(0xD9), RGBV(0xDA), RGBV(0xDB),
+ RGBV(0xDC), RGBV(0xDD), RGBV(0xDE), RGBV(0xDF),
+ RGBV(0xE0), RGBV(0xE1), RGBV(0xE2), RGBV(0xE3),
+ RGBV(0xE4), RGBV(0xE5), RGBV(0xE6), RGBV(0xE7),
+ RGBV(0xE8), RGBV(0xE9), RGBV(0xEA), RGBV(0xEB),
+ RGBV(0xEC), RGBV(0xED), RGBV(0xEE), RGBV(0xEF),
+ RGBV(0xF0), RGBV(0xF1), RGBV(0xF2), RGBV(0xF3),
+ RGBV(0xF4), RGBV(0xF5), RGBV(0xF6), RGBV(0xF7),
+ RGBV(0xF8), RGBV(0xF9), RGBV(0xFA), RGBV(0xFB),
+ RGBV(0xFC), RGBV(0xFD), RGBV(0xFE), RGBV(0xFF),
+};
+
+#undef RGBY
+#undef RGBU
+#undef RGBV
+#undef MMX_ALIGNED
+
+#if defined(ARCH_CPU_X86_64)
+
+// AMD64 ABI uses register paremters.
+void FastConvertYUVToRGB32Row(const uint8* y_buf, // rdi
+ const uint8* u_buf, // rsi
+ const uint8* v_buf, // rdx
+ uint8* rgb_buf, // rcx
+ int width) { // r8
+ asm(
+ "jmp convertend\n"
+"convertloop:"
+ "movzb (%1),%%r10\n"
+ "add $0x1,%1\n"
+ "movzb (%2),%%r11\n"
+ "add $0x1,%2\n"
+ "movq 2048(%5,%%r10,8),%%xmm0\n"
+ "movzb (%0),%%r10\n"
+ "movq 4096(%5,%%r11,8),%%xmm1\n"
+ "movzb 0x1(%0),%%r11\n"
+ "paddsw %%xmm1,%%xmm0\n"
+ "movq (%5,%%r10,8),%%xmm2\n"
+ "add $0x2,%0\n"
+ "movq (%5,%%r11,8),%%xmm3\n"
+ "paddsw %%xmm0,%%xmm2\n"
+ "paddsw %%xmm0,%%xmm3\n"
+ "shufps $0x44,%%xmm3,%%xmm2\n"
+ "psraw $0x6,%%xmm2\n"
+ "packuswb %%xmm2,%%xmm2\n"
+ "movq %%xmm2,0x0(%3)\n"
+ "add $0x8,%3\n"
+"convertend:"
+ "sub $0x2,%4\n"
+ "jns convertloop\n"
+
+"convertnext:"
+ "add $0x1,%4\n"
+ "js convertdone\n"
+
+ "movzb (%1),%%r10\n"
+ "movq 2048(%5,%%r10,8),%%xmm0\n"
+ "movzb (%2),%%r10\n"
+ "movq 4096(%5,%%r10,8),%%xmm1\n"
+ "paddsw %%xmm1,%%xmm0\n"
+ "movzb (%0),%%r10\n"
+ "movq (%5,%%r10,8),%%xmm1\n"
+ "paddsw %%xmm0,%%xmm1\n"
+ "psraw $0x6,%%xmm1\n"
+ "packuswb %%xmm1,%%xmm1\n"
+ "movd %%xmm1,0x0(%3)\n"
+"convertdone:"
+ :
+ : "r"(y_buf), // %0
+ "r"(u_buf), // %1
+ "r"(v_buf), // %2
+ "r"(rgb_buf), // %3
+ "r"(width), // %4
+ "r" (kCoefficientsRgbY) // %5
+ : "memory", "r10", "r11", "xmm0", "xmm1", "xmm2", "xmm3"
+);
+}
+
+void ScaleYUVToRGB32Row(const uint8* y_buf, // rdi
+ const uint8* u_buf, // rsi
+ const uint8* v_buf, // rdx
+ uint8* rgb_buf, // rcx
+ int width, // r8
+ int scaled_dx) { // r9
+ asm(
+ "xor %%r11,%%r11\n"
+ "sub $0x2,%4\n"
+ "js scalenext\n"
+
+"scaleloop:"
+ "mov %%r11,%%r10\n"
+ "sar $0x11,%%r10\n"
+ "movzb (%1,%%r10,1),%%rax\n"
+ "movq 2048(%5,%%rax,8),%%xmm0\n"
+ "movzb (%2,%%r10,1),%%rax\n"
+ "movq 4096(%5,%%rax,8),%%xmm1\n"
+ "lea (%%r11,%6),%%r10\n"
+ "sar $0x10,%%r11\n"
+ "movzb (%0,%%r11,1),%%rax\n"
+ "paddsw %%xmm1,%%xmm0\n"
+ "movq (%5,%%rax,8),%%xmm1\n"
+ "lea (%%r10,%6),%%r11\n"
+ "sar $0x10,%%r10\n"
+ "movzb (%0,%%r10,1),%%rax\n"
+ "movq (%5,%%rax,8),%%xmm2\n"
+ "paddsw %%xmm0,%%xmm1\n"
+ "paddsw %%xmm0,%%xmm2\n"
+ "shufps $0x44,%%xmm2,%%xmm1\n"
+ "psraw $0x6,%%xmm1\n"
+ "packuswb %%xmm1,%%xmm1\n"
+ "movq %%xmm1,0x0(%3)\n"
+ "add $0x8,%3\n"
+ "sub $0x2,%4\n"
+ "jns scaleloop\n"
+
+"scalenext:"
+ "add $0x1,%4\n"
+ "js scaledone\n"
+
+ "mov %%r11,%%r10\n"
+ "sar $0x11,%%r10\n"
+ "movzb (%1,%%r10,1),%%rax\n"
+ "movq 2048(%5,%%rax,8),%%xmm0\n"
+ "movzb (%2,%%r10,1),%%rax\n"
+ "movq 4096(%5,%%rax,8),%%xmm1\n"
+ "paddsw %%xmm1,%%xmm0\n"
+ "sar $0x10,%%r11\n"
+ "movzb (%0,%%r11,1),%%rax\n"
+ "movq (%5,%%rax,8),%%xmm1\n"
+ "paddsw %%xmm0,%%xmm1\n"
+ "psraw $0x6,%%xmm1\n"
+ "packuswb %%xmm1,%%xmm1\n"
+ "movd %%xmm1,0x0(%3)\n"
+
+"scaledone:"
+ :
+ : "r"(y_buf), // %0
+ "r"(u_buf), // %1
+ "r"(v_buf), // %2
+ "r"(rgb_buf), // %3
+ "r"(width), // %4
+ "r" (kCoefficientsRgbY), // %5
+ "r"(static_cast<long>(scaled_dx)) // %6
+ : "memory", "r10", "r11", "rax", "xmm0", "xmm1", "xmm2"
+);
+}
+
+void LinearScaleYUVToRGB32Row(const uint8* y_buf,
+ const uint8* u_buf,
+ const uint8* v_buf,
+ uint8* rgb_buf,
+ int width,
+ int scaled_dx) {
+ asm(
+ "movq $32768,%%r11\n"
+ "sub $0x2,%4\n"
+ "js .lscalenext\n"
+
+".lscaleloop:"
+ "mov %%r11,%%r10\n"
+ "sar $0x11,%%r10\n"
+
+ "movzb (%1, %%r10, 1), %%r13 \n"
+ "movzb 1(%1, %%r10, 1), %%r14 \n"
+ "mov %%r11, %%rax \n"
+ "and $0x1fffe, %%rax \n"
+ "imul %%rax, %%r14 \n"
+ "xor $0x1fffe, %%rax \n"
+ "imul %%rax, %%r13 \n"
+ "add %%r14, %%r13 \n"
+ "shr $17, %%r13 \n"
+ "movq 2048(%5,%%r13,8), %%xmm0\n"
+
+ "movzb (%2, %%r10, 1), %%r13 \n"
+ "movzb 1(%2, %%r10, 1), %%r14 \n"
+ "mov %%r11, %%rax \n"
+ "and $0x1fffe, %%rax \n"
+ "imul %%rax, %%r14 \n"
+ "xor $0x1fffe, %%rax \n"
+ "imul %%rax, %%r13 \n"
+ "add %%r14, %%r13 \n"
+ "shr $17, %%r13 \n"
+ "movq 4096(%5,%%r13,8), %%xmm1\n"
+
+ "mov %%r11, %%rax \n"
+ "lea (%%r11,%6),%%r10\n"
+ "sar $0x10,%%r11\n"
+ "paddsw %%xmm1,%%xmm0\n"
+
+ "movzb (%0, %%r11, 1), %%r13 \n"
+ "movzb 1(%0, %%r11, 1), %%r14 \n"
+ "and $0xffff, %%rax \n"
+ "imul %%rax, %%r14 \n"
+ "xor $0xffff, %%rax \n"
+ "imul %%rax, %%r13 \n"
+ "add %%r14, %%r13 \n"
+ "shr $16, %%r13 \n"
+ "movq (%5,%%r13,8),%%xmm1\n"
+
+ "mov %%r10, %%rax \n"
+ "lea (%%r10,%6),%%r11\n"
+ "sar $0x10,%%r10\n"
+
+ "movzb (%0,%%r10,1), %%r13 \n"
+ "movzb 1(%0,%%r10,1), %%r14 \n"
+ "and $0xffff, %%rax \n"
+ "imul %%rax, %%r14 \n"
+ "xor $0xffff, %%rax \n"
+ "imul %%rax, %%r13 \n"
+ "add %%r14, %%r13 \n"
+ "shr $16, %%r13 \n"
+ "movq (%5,%%r13,8),%%xmm2\n"
+
+ "paddsw %%xmm0,%%xmm1\n"
+ "paddsw %%xmm0,%%xmm2\n"
+ "shufps $0x44,%%xmm2,%%xmm1\n"
+ "psraw $0x6,%%xmm1\n"
+ "packuswb %%xmm1,%%xmm1\n"
+ "movq %%xmm1,0x0(%3)\n"
+ "add $0x8,%3\n"
+ "sub $0x2,%4\n"
+ "jns .lscaleloop\n"
+
+".lscalenext:"
+ "add $0x1,%4\n"
+ "js .lscaledone\n"
+
+ "mov %%r11,%%r10\n"
+ "sar $0x11,%%r10\n"
+
+ "movzb (%1,%%r10,1), %%r13 \n"
+ "movq 2048(%5,%%r13,8),%%xmm0\n"
+
+ "movzb (%2,%%r10,1), %%r13 \n"
+ "movq 4096(%5,%%r13,8),%%xmm1\n"
+
+ "paddsw %%xmm1,%%xmm0\n"
+ "sar $0x10,%%r11\n"
+
+ "movzb (%0,%%r11,1), %%r13 \n"
+ "movq (%5,%%r13,8),%%xmm1\n"
+
+ "paddsw %%xmm0,%%xmm1\n"
+ "psraw $0x6,%%xmm1\n"
+ "packuswb %%xmm1,%%xmm1\n"
+ "movd %%xmm1,0x0(%3)\n"
+
+".lscaledone:"
+ :
+ : "r"(y_buf), // %0
+ "r"(u_buf), // %1
+ "r"(v_buf), // %2
+ "r"(rgb_buf), // %3
+ "r"(width), // %4
+ "r" (kCoefficientsRgbY), // %5
+ "r"(static_cast<long>(scaled_dx)) // %6
+ : "memory", "r10", "r11", "r13", "r14", "rax", "xmm0", "xmm1", "xmm2"
+);
+}
+
+#else // !AMD64
+
+// PIC version is slower because less registers are available, so
+// non-PIC is used on platforms where it is possible.
+
+#if !defined(__PIC__)
+
+void FastConvertYUVToRGB32Row(const uint8* y_buf,
+ const uint8* u_buf,
+ const uint8* v_buf,
+ uint8* rgb_buf,
+ int width);
+
+ asm(
+ ".global FastConvertYUVToRGB32Row\n"
+"FastConvertYUVToRGB32Row:\n"
+ "pusha\n"
+ "mov 0x24(%esp),%edx\n"
+ "mov 0x28(%esp),%edi\n"
+ "mov 0x2c(%esp),%esi\n"
+ "mov 0x30(%esp),%ebp\n"
+ "mov 0x34(%esp),%ecx\n"
+ "jmp convertend\n"
+
+"convertloop:"
+ "movzbl (%edi),%eax\n"
+ "add $0x1,%edi\n"
+ "movzbl (%esi),%ebx\n"
+ "add $0x1,%esi\n"
+ "movq kCoefficientsRgbY+2048(,%eax,8),%mm0\n"
+ "movzbl (%edx),%eax\n"
+ "paddsw kCoefficientsRgbY+4096(,%ebx,8),%mm0\n"
+ "movzbl 0x1(%edx),%ebx\n"
+ "movq kCoefficientsRgbY(,%eax,8),%mm1\n"
+ "add $0x2,%edx\n"
+ "movq kCoefficientsRgbY(,%ebx,8),%mm2\n"
+ "paddsw %mm0,%mm1\n"
+ "paddsw %mm0,%mm2\n"
+ "psraw $0x6,%mm1\n"
+ "psraw $0x6,%mm2\n"
+ "packuswb %mm2,%mm1\n"
+ "movntq %mm1,0x0(%ebp)\n"
+ "add $0x8,%ebp\n"
+"convertend:"
+ "sub $0x2,%ecx\n"
+ "jns convertloop\n"
+
+ "and $0x1,%ecx\n"
+ "je convertdone\n"
+
+ "movzbl (%edi),%eax\n"
+ "movq kCoefficientsRgbY+2048(,%eax,8),%mm0\n"
+ "movzbl (%esi),%eax\n"
+ "paddsw kCoefficientsRgbY+4096(,%eax,8),%mm0\n"
+ "movzbl (%edx),%eax\n"
+ "movq kCoefficientsRgbY(,%eax,8),%mm1\n"
+ "paddsw %mm0,%mm1\n"
+ "psraw $0x6,%mm1\n"
+ "packuswb %mm1,%mm1\n"
+ "movd %mm1,0x0(%ebp)\n"
+"convertdone:"
+ "popa\n"
+ "ret\n"
+);
+
+
+void ScaleYUVToRGB32Row(const uint8* y_buf,
+ const uint8* u_buf,
+ const uint8* v_buf,
+ uint8* rgb_buf,
+ int width,
+ int scaled_dx);
+
+ asm(
+ ".global ScaleYUVToRGB32Row\n"
+"ScaleYUVToRGB32Row:\n"
+ "pusha\n"
+ "mov 0x24(%esp),%edx\n"
+ "mov 0x28(%esp),%edi\n"
+ "mov 0x2c(%esp),%esi\n"
+ "mov 0x30(%esp),%ebp\n"
+ "mov 0x34(%esp),%ecx\n"
+ "xor %ebx,%ebx\n"
+ "jmp scaleend\n"
+
+"scaleloop:"
+ "mov %ebx,%eax\n"
+ "sar $0x11,%eax\n"
+ "movzbl (%edi,%eax,1),%eax\n"
+ "movq kCoefficientsRgbY+2048(,%eax,8),%mm0\n"
+ "mov %ebx,%eax\n"
+ "sar $0x11,%eax\n"
+ "movzbl (%esi,%eax,1),%eax\n"
+ "paddsw kCoefficientsRgbY+4096(,%eax,8),%mm0\n"
+ "mov %ebx,%eax\n"
+ "add 0x38(%esp),%ebx\n"
+ "sar $0x10,%eax\n"
+ "movzbl (%edx,%eax,1),%eax\n"
+ "movq kCoefficientsRgbY(,%eax,8),%mm1\n"
+ "mov %ebx,%eax\n"
+ "add 0x38(%esp),%ebx\n"
+ "sar $0x10,%eax\n"
+ "movzbl (%edx,%eax,1),%eax\n"
+ "movq kCoefficientsRgbY(,%eax,8),%mm2\n"
+ "paddsw %mm0,%mm1\n"
+ "paddsw %mm0,%mm2\n"
+ "psraw $0x6,%mm1\n"
+ "psraw $0x6,%mm2\n"
+ "packuswb %mm2,%mm1\n"
+ "movntq %mm1,0x0(%ebp)\n"
+ "add $0x8,%ebp\n"
+"scaleend:"
+ "sub $0x2,%ecx\n"
+ "jns scaleloop\n"
+
+ "and $0x1,%ecx\n"
+ "je scaledone\n"
+
+ "mov %ebx,%eax\n"
+ "sar $0x11,%eax\n"
+ "movzbl (%edi,%eax,1),%eax\n"
+ "movq kCoefficientsRgbY+2048(,%eax,8),%mm0\n"
+ "mov %ebx,%eax\n"
+ "sar $0x11,%eax\n"
+ "movzbl (%esi,%eax,1),%eax\n"
+ "paddsw kCoefficientsRgbY+4096(,%eax,8),%mm0\n"
+ "mov %ebx,%eax\n"
+ "sar $0x10,%eax\n"
+ "movzbl (%edx,%eax,1),%eax\n"
+ "movq kCoefficientsRgbY(,%eax,8),%mm1\n"
+ "paddsw %mm0,%mm1\n"
+ "psraw $0x6,%mm1\n"
+ "packuswb %mm1,%mm1\n"
+ "movd %mm1,0x0(%ebp)\n"
+
+"scaledone:"
+ "popa\n"
+ "ret\n"
+);
+
+void LinearScaleYUVToRGB32Row(const uint8* y_buf,
+ const uint8* u_buf,
+ const uint8* v_buf,
+ uint8* rgb_buf,
+ int width,
+ int scaled_dx);
+
+ asm(
+ ".global LinearScaleYUVToRGB32Row\n"
+"LinearScaleYUVToRGB32Row:\n"
+ "pusha\n"
+ "mov 0x24(%esp),%edx\n"
+ "mov 0x28(%esp),%edi\n"
+ "mov 0x30(%esp),%ebp\n"
+ "movl $32768,%ebx\n"
+
+ // width = width * scaled_dx + ebx
+ "mov 0x34(%esp), %ecx\n"
+ "imull 0x38(%esp), %ecx\n"
+ "addl %ebx, %ecx\n"
+ "mov %ecx, 0x34(%esp)\n"
+
+ "jmp .lscaleend\n"
+
+".lscaleloop:"
+ "mov %ebx,%eax\n"
+ "sar $0x11,%eax\n"
+
+ "movzbl (%edi,%eax,1),%ecx\n"
+ "movzbl 1(%edi,%eax,1),%esi\n"
+ "mov %ebx,%eax\n"
+ "andl $0x1fffe, %eax \n"
+ "imul %eax, %esi \n"
+ "xorl $0x1fffe, %eax \n"
+ "imul %eax, %ecx \n"
+ "addl %esi, %ecx \n"
+ "shrl $17, %ecx \n"
+ "movq kCoefficientsRgbY+2048(,%ecx,8),%mm0\n"
+
+ "mov 0x2c(%esp),%esi\n"
+ "mov %ebx,%eax\n"
+ "sar $0x11,%eax\n"
+
+ "movzbl (%esi,%eax,1),%ecx\n"
+ "movzbl 1(%esi,%eax,1),%esi\n"
+ "mov %ebx,%eax\n"
+ "andl $0x1fffe, %eax \n"
+ "imul %eax, %esi \n"
+ "xorl $0x1fffe, %eax \n"
+ "imul %eax, %ecx \n"
+ "addl %esi, %ecx \n"
+ "shrl $17, %ecx \n"
+ "paddsw kCoefficientsRgbY+4096(,%ecx,8),%mm0\n"
+
+ "mov %ebx,%eax\n"
+ "sar $0x10,%eax\n"
+ "movzbl (%edx,%eax,1),%ecx\n"
+ "movzbl 1(%edx,%eax,1),%esi\n"
+ "mov %ebx,%eax\n"
+ "add 0x38(%esp),%ebx\n"
+ "andl $0xffff, %eax \n"
+ "imul %eax, %esi \n"
+ "xorl $0xffff, %eax \n"
+ "imul %eax, %ecx \n"
+ "addl %esi, %ecx \n"
+ "shrl $16, %ecx \n"
+ "movq kCoefficientsRgbY(,%ecx,8),%mm1\n"
+
+ "cmp 0x34(%esp), %ebx\n"
+ "jge .lscalelastpixel\n"
+
+ "mov %ebx,%eax\n"
+ "sar $0x10,%eax\n"
+ "movzbl (%edx,%eax,1),%ecx\n"
+ "movzbl 1(%edx,%eax,1),%esi\n"
+ "mov %ebx,%eax\n"
+ "add 0x38(%esp),%ebx\n"
+ "andl $0xffff, %eax \n"
+ "imul %eax, %esi \n"
+ "xorl $0xffff, %eax \n"
+ "imul %eax, %ecx \n"
+ "addl %esi, %ecx \n"
+ "shrl $16, %ecx \n"
+ "movq kCoefficientsRgbY(,%ecx,8),%mm2\n"
+
+ "paddsw %mm0,%mm1\n"
+ "paddsw %mm0,%mm2\n"
+ "psraw $0x6,%mm1\n"
+ "psraw $0x6,%mm2\n"
+ "packuswb %mm2,%mm1\n"
+ "movntq %mm1,0x0(%ebp)\n"
+ "add $0x8,%ebp\n"
+
+".lscaleend:"
+ "cmp 0x34(%esp), %ebx\n"
+ "jl .lscaleloop\n"
+ "popa\n"
+ "ret\n"
+
+".lscalelastpixel:"
+ "paddsw %mm0, %mm1\n"
+ "psraw $6, %mm1\n"
+ "packuswb %mm1, %mm1\n"
+ "movd %mm1, (%ebp)\n"
+ "popa\n"
+ "ret\n"
+);
+
+#else // __PIC__
+
+extern void PICConvertYUVToRGB32Row(const uint8* y_buf,
+ const uint8* u_buf,
+ const uint8* v_buf,
+ uint8* rgb_buf,
+ int width,
+ int16 *kCoefficientsRgbY);
+ __asm__(
+"_PICConvertYUVToRGB32Row:\n"
+ "pusha\n"
+ "mov 0x24(%esp),%edx\n"
+ "mov 0x28(%esp),%edi\n"
+ "mov 0x2c(%esp),%esi\n"
+ "mov 0x30(%esp),%ebp\n"
+ "mov 0x38(%esp),%ecx\n"
+
+ "jmp .Lconvertend\n"
+
+".Lconvertloop:"
+ "movzbl (%edi),%eax\n"
+ "add $0x1,%edi\n"
+ "movzbl (%esi),%ebx\n"
+ "add $0x1,%esi\n"
+ "movq 2048(%ecx,%eax,8),%mm0\n"
+ "movzbl (%edx),%eax\n"
+ "paddsw 4096(%ecx,%ebx,8),%mm0\n"
+ "movzbl 0x1(%edx),%ebx\n"
+ "movq 0(%ecx,%eax,8),%mm1\n"
+ "add $0x2,%edx\n"
+ "movq 0(%ecx,%ebx,8),%mm2\n"
+ "paddsw %mm0,%mm1\n"
+ "paddsw %mm0,%mm2\n"
+ "psraw $0x6,%mm1\n"
+ "psraw $0x6,%mm2\n"
+ "packuswb %mm2,%mm1\n"
+ "movntq %mm1,0x0(%ebp)\n"
+ "add $0x8,%ebp\n"
+".Lconvertend:"
+ "sub $0x2,0x34(%esp)\n"
+ "jns .Lconvertloop\n"
+
+ "and $0x1,0x34(%esp)\n"
+ "je .Lconvertdone\n"
+
+ "movzbl (%edi),%eax\n"
+ "movq 2048(%ecx,%eax,8),%mm0\n"
+ "movzbl (%esi),%eax\n"
+ "paddsw 4096(%ecx,%eax,8),%mm0\n"
+ "movzbl (%edx),%eax\n"
+ "movq 0(%ecx,%eax,8),%mm1\n"
+ "paddsw %mm0,%mm1\n"
+ "psraw $0x6,%mm1\n"
+ "packuswb %mm1,%mm1\n"
+ "movd %mm1,0x0(%ebp)\n"
+".Lconvertdone:\n"
+ "popa\n"
+ "ret\n"
+);
+
+void FastConvertYUVToRGB32Row(const uint8* y_buf,
+ const uint8* u_buf,
+ const uint8* v_buf,
+ uint8* rgb_buf,
+ int width) {
+ PICConvertYUVToRGB32Row(y_buf, u_buf, v_buf, rgb_buf, width,
+ &kCoefficientsRgbY[0][0]);
+}
+
+extern void PICScaleYUVToRGB32Row(const uint8* y_buf,
+ const uint8* u_buf,
+ const uint8* v_buf,
+ uint8* rgb_buf,
+ int width,
+ int scaled_dx,
+ int16 *kCoefficientsRgbY);
+
+ __asm__(
+"_PICScaleYUVToRGB32Row:\n"
+ "pusha\n"
+ "mov 0x24(%esp),%edx\n"
+ "mov 0x28(%esp),%edi\n"
+ "mov 0x2c(%esp),%esi\n"
+ "mov 0x30(%esp),%ebp\n"
+ "mov 0x3c(%esp),%ecx\n"
+ "xor %ebx,%ebx\n"
+ "jmp Lscaleend\n"
+
+"Lscaleloop:"
+ "mov %ebx,%eax\n"
+ "sar $0x11,%eax\n"
+ "movzbl (%edi,%eax,1),%eax\n"
+ "movq 2048(%ecx,%eax,8),%mm0\n"
+ "mov %ebx,%eax\n"
+ "sar $0x11,%eax\n"
+ "movzbl (%esi,%eax,1),%eax\n"
+ "paddsw 4096(%ecx,%eax,8),%mm0\n"
+ "mov %ebx,%eax\n"
+ "add 0x38(%esp),%ebx\n"
+ "sar $0x10,%eax\n"
+ "movzbl (%edx,%eax,1),%eax\n"
+ "movq 0(%ecx,%eax,8),%mm1\n"
+ "mov %ebx,%eax\n"
+ "add 0x38(%esp),%ebx\n"
+ "sar $0x10,%eax\n"
+ "movzbl (%edx,%eax,1),%eax\n"
+ "movq 0(%ecx,%eax,8),%mm2\n"
+ "paddsw %mm0,%mm1\n"
+ "paddsw %mm0,%mm2\n"
+ "psraw $0x6,%mm1\n"
+ "psraw $0x6,%mm2\n"
+ "packuswb %mm2,%mm1\n"
+ "movntq %mm1,0x0(%ebp)\n"
+ "add $0x8,%ebp\n"
+"Lscaleend:"
+ "sub $0x2,0x34(%esp)\n"
+ "jns Lscaleloop\n"
+
+ "and $0x1,0x34(%esp)\n"
+ "je Lscaledone\n"
+
+ "mov %ebx,%eax\n"
+ "sar $0x11,%eax\n"
+ "movzbl (%edi,%eax,1),%eax\n"
+ "movq 2048(%ecx,%eax,8),%mm0\n"
+ "mov %ebx,%eax\n"
+ "sar $0x11,%eax\n"
+ "movzbl (%esi,%eax,1),%eax\n"
+ "paddsw 4096(%ecx,%eax,8),%mm0\n"
+ "mov %ebx,%eax\n"
+ "sar $0x10,%eax\n"
+ "movzbl (%edx,%eax,1),%eax\n"
+ "movq 0(%ecx,%eax,8),%mm1\n"
+ "paddsw %mm0,%mm1\n"
+ "psraw $0x6,%mm1\n"
+ "packuswb %mm1,%mm1\n"
+ "movd %mm1,0x0(%ebp)\n"
+
+"Lscaledone:"
+ "popa\n"
+ "ret\n"
+);
+
+
+void ScaleYUVToRGB32Row(const uint8* y_buf,
+ const uint8* u_buf,
+ const uint8* v_buf,
+ uint8* rgb_buf,
+ int width,
+ int scaled_dx) {
+ PICScaleYUVToRGB32Row(y_buf, u_buf, v_buf, rgb_buf, width, scaled_dx,
+ &kCoefficientsRgbY[0][0]);
+}
+
+void PICLinearScaleYUVToRGB32Row(const uint8* y_buf,
+ const uint8* u_buf,
+ const uint8* v_buf,
+ uint8* rgb_buf,
+ int width,
+ int scaled_dx,
+ int16 *kCoefficientsRgbY);
+
+ asm(
+"_PICLinearScaleYUVToRGB32Row:\n"
+ "pusha\n"
+ "mov 0x24(%esp),%edx\n"
+ "mov 0x30(%esp),%ebp\n"
+ "mov 0x34(%esp),%ecx\n"
+ "mov 0x3c(%esp),%edi\n"
+ "movl $32768,%ebx\n"
+
+ // width = width * scaled_dx + ebx
+ "mov 0x34(%esp), %ecx\n"
+ "imull 0x38(%esp), %ecx\n"
+ "addl %ebx, %ecx\n"
+ "mov %ecx, 0x34(%esp)\n"
+
+ "jmp .lscaleend\n"
+
+".lscaleloop:"
+ "mov 0x28(%esp),%esi\n"
+ "mov %ebx,%eax\n"
+ "sar $0x11,%eax\n"
+
+ "movzbl (%esi,%eax,1),%ecx\n"
+ "movzbl 1(%esi,%eax,1),%esi\n"
+ "mov %ebx,%eax\n"
+ "andl $0x1fffe, %eax \n"
+ "imul %eax, %esi \n"
+ "xorl $0x1fffe, %eax \n"
+ "imul %eax, %ecx \n"
+ "addl %esi, %ecx \n"
+ "shrl $17, %ecx \n"
+ "movq 2048(%edi,%ecx,8),%mm0\n"
+
+ "mov 0x2c(%esp),%esi\n"
+ "mov %ebx,%eax\n"
+ "sar $0x11,%eax\n"
+
+ "movzbl (%esi,%eax,1),%ecx\n"
+ "movzbl 1(%esi,%eax,1),%esi\n"
+ "mov %ebx,%eax\n"
+ "andl $0x1fffe, %eax \n"
+ "imul %eax, %esi \n"
+ "xorl $0x1fffe, %eax \n"
+ "imul %eax, %ecx \n"
+ "addl %esi, %ecx \n"
+ "shrl $17, %ecx \n"
+ "paddsw 4096(%edi,%ecx,8),%mm0\n"
+
+ "mov %ebx,%eax\n"
+ "sar $0x10,%eax\n"
+ "movzbl (%edx,%eax,1),%ecx\n"
+ "movzbl 1(%edx,%eax,1),%esi\n"
+ "mov %ebx,%eax\n"
+ "add 0x38(%esp),%ebx\n"
+ "andl $0xffff, %eax \n"
+ "imul %eax, %esi \n"
+ "xorl $0xffff, %eax \n"
+ "imul %eax, %ecx \n"
+ "addl %esi, %ecx \n"
+ "shrl $16, %ecx \n"
+ "movq (%edi,%ecx,8),%mm1\n"
+
+ "cmp 0x34(%esp), %ebx\n"
+ "jge .lscalelastpixel\n"
+
+ "mov %ebx,%eax\n"
+ "sar $0x10,%eax\n"
+ "movzbl (%edx,%eax,1),%ecx\n"
+ "movzbl 1(%edx,%eax,1),%esi\n"
+ "mov %ebx,%eax\n"
+ "add 0x38(%esp),%ebx\n"
+ "andl $0xffff, %eax \n"
+ "imul %eax, %esi \n"
+ "xorl $0xffff, %eax \n"
+ "imul %eax, %ecx \n"
+ "addl %esi, %ecx \n"
+ "shrl $16, %ecx \n"
+ "movq (%edi,%ecx,8),%mm2\n"
+
+ "paddsw %mm0,%mm1\n"
+ "paddsw %mm0,%mm2\n"
+ "psraw $0x6,%mm1\n"
+ "psraw $0x6,%mm2\n"
+ "packuswb %mm2,%mm1\n"
+ "movntq %mm1,0x0(%ebp)\n"
+ "add $0x8,%ebp\n"
+
+".lscaleend:"
+ "cmp %ebx, 0x34(%esp)\n"
+ "jg .lscaleloop\n"
+ "popa\n"
+ "ret\n"
+
+".lscalelastpixel:"
+ "paddsw %mm0, %mm1\n"
+ "psraw $6, %mm1\n"
+ "packuswb %mm1, %mm1\n"
+ "movd %mm1, (%ebp)\n"
+ "popa\n"
+ "ret\n"
+);
+
+void LinearScaleYUVToRGB32Row(const uint8* y_buf,
+ const uint8* u_buf,
+ const uint8* v_buf,
+ uint8* rgb_buf,
+ int width,
+ int scaled_dx) {
+ PICLinearScaleYUVToRGB32Row(y_buf, u_buf, v_buf, rgb_buf, width, scaled_dx,
+ &kCoefficientsRgbY[0][0]);
+}
+
+#endif // !__PIC__
+
+#endif // !AMD64
+
+#else // USE_MMX
+
+// Reference version of YUV converter.
+static const int kClipTableSize = 256;
+static const int kClipOverflow = 288; // Cb max is 535.
+
+static uint8 kRgbClipTable[kClipOverflow +
+ kClipTableSize +
+ kClipOverflow] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // 288 underflow values
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // clipped to 0.
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, // Unclipped values.
+ 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
+ 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
+ 0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F,
+ 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
+ 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F,
+ 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
+ 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F,
+ 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
+ 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F,
+ 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57,
+ 0x58, 0x59, 0x5A, 0x5B, 0x5C, 0x5D, 0x5E, 0x5F,
+ 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
+ 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F,
+ 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
+ 0x78, 0x79, 0x7A, 0x7B, 0x7C, 0x7D, 0x7E, 0x7F,
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+ 0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F,
+ 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+ 0x98, 0x99, 0x9A, 0x9B, 0x9C, 0x9D, 0x9E, 0x9F,
+ 0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7,
+ 0xA8, 0xA9, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF,
+ 0xB0, 0xB1, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7,
+ 0xB8, 0xB9, 0xBA, 0xBB, 0xBC, 0xBD, 0xBE, 0xBF,
+ 0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
+ 0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF,
+ 0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7,
+ 0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF,
+ 0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,
+ 0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF,
+ 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7,
+ 0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, // 288 overflow values
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, // clipped to 255.
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+};
+
+// Clip an rgb channel value to 0..255 range.
+// Source is signed fixed point 8.8.
+// Table allows for values to underflow or overflow by 128.
+// Therefore source range is -128 to 384.
+// Output clips to unsigned 0 to 255.
+static inline uint32 clip(int32 value) {
+ DCHECK(((value >> 8) + kClipOverflow) >= 0);
+ DCHECK(((value >> 8) + kClipOverflow) <
+ (kClipOverflow + kClipTableSize + kClipOverflow));
+ return static_cast<uint32>(kRgbClipTable[((value) >> 8) + kClipOverflow]);
+}
+
+static inline void YuvPixel(uint8 y,
+ uint8 u,
+ uint8 v,
+ uint8* rgb_buf) {
+ int32 d = static_cast<int32>(u) - 128;
+ int32 e = static_cast<int32>(v) - 128;
+
+ int32 cb = (516 * d + 128);
+ int32 cg = (- 100 * d - 208 * e + 128);
+ int32 cr = (409 * e + 128);
+
+ int32 C298a = ((static_cast<int32>(y) - 16) * 298 + 128);
+ *reinterpret_cast<uint32*>(rgb_buf) = (clip(C298a + cb)) |
+ (clip(C298a + cg) << 8) |
+ (clip(C298a + cr) << 16) |
+ (0xff000000);
+}
+
+void FastConvertYUVToRGB32Row(const uint8* y_buf,
+ const uint8* u_buf,
+ const uint8* v_buf,
+ uint8* rgb_buf,
+ int width) {
+ for (int x = 0; x < width; x += 2) {
+ uint8 u = u_buf[x >> 1];
+ uint8 v = v_buf[x >> 1];
+ uint8 y0 = y_buf[x];
+ YuvPixel(y0, u, v, rgb_buf);
+ if ((x + 1) < width) {
+ uint8 y1 = y_buf[x + 1];
+ YuvPixel(y1, u, v, rgb_buf + 4);
+ }
+ rgb_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(const uint8* y_buf,
+ const uint8* u_buf,
+ const uint8* v_buf,
+ uint8* rgb_buf,
+ int width,
+ int scaled_dx) {
+ int scaled_x = 0;
+ for (int x = 0; x < width; ++x) {
+ uint8 u = u_buf[scaled_x >> 17];
+ uint8 v = v_buf[scaled_x >> 17];
+ uint8 y0 = y_buf[scaled_x >> 16];
+ YuvPixel(y0, u, v, rgb_buf);
+ rgb_buf += 4;
+ scaled_x += scaled_dx;
+ }
+}
+
+void LinearScaleYUVToRGB32Row(const uint8* y_buf,
+ const uint8* u_buf,
+ const uint8* v_buf,
+ uint8* rgb_buf,
+ int width,
+ int dx) {
+ for (int x = 0; x < width * dx; x += dx) {
+ 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 = ((x & 65535) * y1 + ((x & 65535) ^ 65535) * y0) >> 16;
+ int u = ((x & 65535) * u1 + ((x & 65535) ^ 65535) * u0) >> 16;
+ int v = ((x & 65535) * v1 + ((x & 65535) ^ 65535) * v0) >> 16;
+ YuvPixel(y, u, v, rgb_buf);
+ rgb_buf += 4;
+ }
+}
+
+#endif // USE_MMX
+} // extern "C"
generated by cgit v1.1 at 2025-01-19 18:42:16 +0000