Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 914 insertions, 0 deletions

diff --git a/gfx/ycbcr/yuv_row_posix.cpp b/gfx/ycbcr/yuv_row_posix.cpp
new file mode 100644
index 0000000000..c5e55abe4c
--- /dev/null
+++ b/gfx/ycbcr/yuv_row_posix.cpp
@@ -0,0 +1,914 @@
+// 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 "yuv_row.h"
+#include "mozilla/SSE.h"
+
+#define DCHECK(a)
+
+extern "C" {
+
+#if defined(ARCH_CPU_X86_64)
+
+// We don't need CPUID guards here, since x86-64 implies SSE2.
+
+// AMD64 ABI uses register paremters.
+void FastConvertYUVToRGB32Row(const uint8_t* y_buf,  // rdi
+                              const uint8_t* u_buf,  // rsi
+                              const uint8_t* v_buf,  // rdx
+                              uint8_t* rgb_buf,      // rcx
+                              int width) {         // r8
+  asm volatile(
+  "jmp    1f\n"
+"0:"
+  "movzb  (%[u_buf]),%%r10\n"
+  "add    $0x1,%[u_buf]\n"
+  "movzb  (%[v_buf]),%%r11\n"
+  "add    $0x1,%[v_buf]\n"
+  "movq   2048(%[kCoefficientsRgbY],%%r10,8),%%xmm0\n"
+  "movzb  (%[y_buf]),%%r10\n"
+  "movq   4096(%[kCoefficientsRgbY],%%r11,8),%%xmm1\n"
+  "movzb  0x1(%[y_buf]),%%r11\n"
+  "paddsw %%xmm1,%%xmm0\n"
+  "movq   (%[kCoefficientsRgbY],%%r10,8),%%xmm2\n"
+  "add    $0x2,%[y_buf]\n"
+  "movq   (%[kCoefficientsRgbY],%%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(%[rgb_buf])\n"
+  "add    $0x8,%[rgb_buf]\n"
+"1:"
+  "sub    $0x2,%[width]\n"
+  "jns    0b\n"
+
+"2:"
+  "add    $0x1,%[width]\n"
+  "js     3f\n"
+
+  "movzb  (%[u_buf]),%%r10\n"
+  "movq   2048(%[kCoefficientsRgbY],%%r10,8),%%xmm0\n"
+  "movzb  (%[v_buf]),%%r10\n"
+  "movq   4096(%[kCoefficientsRgbY],%%r10,8),%%xmm1\n"
+  "paddsw %%xmm1,%%xmm0\n"
+  "movzb  (%[y_buf]),%%r10\n"
+  "movq   (%[kCoefficientsRgbY],%%r10,8),%%xmm1\n"
+  "paddsw %%xmm0,%%xmm1\n"
+  "psraw  $0x6,%%xmm1\n"
+  "packuswb %%xmm1,%%xmm1\n"
+  "movd   %%xmm1,0x0(%[rgb_buf])\n"
+"3:"
+  : [y_buf] "+r"(y_buf),
+    [u_buf] "+r"(u_buf),
+    [v_buf] "+r"(v_buf),
+    [rgb_buf] "+r"(rgb_buf),
+    [width] "+r"(width)
+  : [kCoefficientsRgbY] "r" (kCoefficientsRgbY)
+  : "cc", "memory", "r10", "r11", "xmm0", "xmm1", "xmm2", "xmm3"
+);
+}
+
+void ScaleYUVToRGB32Row(const uint8_t* y_buf,  // rdi
+                        const uint8_t* u_buf,  // rsi
+                        const uint8_t* v_buf,  // rdx
+                        uint8_t* rgb_buf,      // rcx
+                        int width,           // r8
+                        int source_dx) {     // r9
+  asm volatile(
+  "xor    %%r11,%%r11\n"
+  "sub    $0x2,%[width]\n"
+  "js     1f\n"
+
+"0:"
+  "mov    %%r11,%%r10\n"
+  "sar    $0x11,%%r10\n"
+  "movzb  (%[u_buf],%%r10,1),%%rax\n"
+  "movq   2048(%[kCoefficientsRgbY],%%rax,8),%%xmm0\n"
+  "movzb  (%[v_buf],%%r10,1),%%rax\n"
+  "movq   4096(%[kCoefficientsRgbY],%%rax,8),%%xmm1\n"
+  "lea    (%%r11,%[source_dx]),%%r10\n"
+  "sar    $0x10,%%r11\n"
+  "movzb  (%[y_buf],%%r11,1),%%rax\n"
+  "paddsw %%xmm1,%%xmm0\n"
+  "movq   (%[kCoefficientsRgbY],%%rax,8),%%xmm1\n"
+  "lea    (%%r10,%[source_dx]),%%r11\n"
+  "sar    $0x10,%%r10\n"
+  "movzb  (%[y_buf],%%r10,1),%%rax\n"
+  "movq   (%[kCoefficientsRgbY],%%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(%[rgb_buf])\n"
+  "add    $0x8,%[rgb_buf]\n"
+  "sub    $0x2,%[width]\n"
+  "jns    0b\n"
+
+"1:"
+  "add    $0x1,%[width]\n"
+  "js     2f\n"
+
+  "mov    %%r11,%%r10\n"
+  "sar    $0x11,%%r10\n"
+  "movzb  (%[u_buf],%%r10,1),%%rax\n"
+  "movq   2048(%[kCoefficientsRgbY],%%rax,8),%%xmm0\n"
+  "movzb  (%[v_buf],%%r10,1),%%rax\n"
+  "movq   4096(%[kCoefficientsRgbY],%%rax,8),%%xmm1\n"
+  "paddsw %%xmm1,%%xmm0\n"
+  "sar    $0x10,%%r11\n"
+  "movzb  (%[y_buf],%%r11,1),%%rax\n"
+  "movq   (%[kCoefficientsRgbY],%%rax,8),%%xmm1\n"
+  "paddsw %%xmm0,%%xmm1\n"
+  "psraw  $0x6,%%xmm1\n"
+  "packuswb %%xmm1,%%xmm1\n"
+  "movd   %%xmm1,0x0(%[rgb_buf])\n"
+
+"2:"
+  : [rgb_buf] "+r"(rgb_buf),
+    [width] "+r"(width)
+  : [y_buf] "r"(y_buf),
+    [u_buf] "r"(u_buf),
+    [v_buf] "r"(v_buf),
+    [kCoefficientsRgbY] "r" (kCoefficientsRgbY),
+    [source_dx] "r"(static_cast<long>(source_dx))
+  : "cc", "memory", "r10", "r11", "rax", "xmm0", "xmm1", "xmm2"
+);
+}
+
+void LinearScaleYUVToRGB32Row(const uint8_t* y_buf,
+                              const uint8_t* u_buf,
+                              const uint8_t* v_buf,
+                              uint8_t* rgb_buf,
+                              int width,
+                              int source_dx) {
+  asm volatile(
+  "xor    %%r11,%%r11\n"   // x = 0
+  "sub    $0x2,%[width]\n"
+  "js     2f\n"
+  "cmp    $0x20000,%[source_dx]\n"   // if source_dx >= 2.0
+  "jl     0f\n"
+  "mov    $0x8000,%%r11\n" // x = 0.5 for 1/2 or less
+"0:"
+
+"1:"
+  "mov    %%r11,%%r10\n"
+  "sar    $0x11,%%r10\n"
+
+  "movzb  (%[u_buf], %%r10, 1), %%r13 \n"
+  "movzb  1(%[u_buf], %%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(%[kCoefficientsRgbY],%%r13,8), %%xmm0\n"
+
+  "movzb  (%[v_buf], %%r10, 1), %%r13 \n"
+  "movzb  1(%[v_buf], %%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(%[kCoefficientsRgbY],%%r13,8), %%xmm1\n"
+
+  "mov    %%r11, %%rax \n"
+  "lea    (%%r11,%[source_dx]),%%r10\n"
+  "sar    $0x10,%%r11\n"
+  "paddsw %%xmm1,%%xmm0\n"
+
+  "movzb  (%[y_buf], %%r11, 1), %%r13 \n"
+  "movzb  1(%[y_buf], %%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   (%[kCoefficientsRgbY],%%r13,8),%%xmm1\n"
+
+  "mov    %%r10, %%rax \n"
+  "lea    (%%r10,%[source_dx]),%%r11\n"
+  "sar    $0x10,%%r10\n"
+
+  "movzb  (%[y_buf],%%r10,1), %%r13 \n"
+  "movzb  1(%[y_buf],%%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   (%[kCoefficientsRgbY],%%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(%[rgb_buf])\n"
+  "add    $0x8,%[rgb_buf]\n"
+  "sub    $0x2,%[width]\n"
+  "jns    1b\n"
+
+"2:"
+  "add    $0x1,%[width]\n"
+  "js     3f\n"
+
+  "mov    %%r11,%%r10\n"
+  "sar    $0x11,%%r10\n"
+
+  "movzb  (%[u_buf],%%r10,1), %%r13 \n"
+  "movq   2048(%[kCoefficientsRgbY],%%r13,8),%%xmm0\n"
+
+  "movzb  (%[v_buf],%%r10,1), %%r13 \n"
+  "movq   4096(%[kCoefficientsRgbY],%%r13,8),%%xmm1\n"
+
+  "paddsw %%xmm1,%%xmm0\n"
+  "sar    $0x10,%%r11\n"
+
+  "movzb  (%[y_buf],%%r11,1), %%r13 \n"
+  "movq   (%[kCoefficientsRgbY],%%r13,8),%%xmm1\n"
+
+  "paddsw %%xmm0,%%xmm1\n"
+  "psraw  $0x6,%%xmm1\n"
+  "packuswb %%xmm1,%%xmm1\n"
+  "movd   %%xmm1,0x0(%[rgb_buf])\n"
+
+"3:"
+  : [rgb_buf] "+r"(rgb_buf),
+    [width] "+r"(width)
+  : [y_buf] "r"(y_buf),
+    [u_buf] "r"(u_buf),
+    [v_buf] "r"(v_buf),
+    [kCoefficientsRgbY] "r" (kCoefficientsRgbY),
+    [source_dx] "r"(static_cast<long>(source_dx))
+  : "cc", "memory", "r10", "r11", "r13", "r14", "rax", "xmm0", "xmm1", "xmm2"
+);
+}
+
+#elif defined(MOZILLA_MAY_SUPPORT_SSE) && defined(ARCH_CPU_X86_32) && !defined(__PIC__)
+
+// PIC version is slower because less registers are available, so
+// non-PIC is used on platforms where it is possible.
+void FastConvertYUVToRGB32Row_SSE(const uint8_t* y_buf,
+                                  const uint8_t* u_buf,
+                                  const uint8_t* v_buf,
+                                  uint8_t* rgb_buf,
+                                  int width);
+  asm(
+  ".text\n"
+  ".global FastConvertYUVToRGB32Row_SSE\n"
+  ".type FastConvertYUVToRGB32Row_SSE, @function\n"
+"FastConvertYUVToRGB32Row_SSE:\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    1f\n"
+
+"0:"
+  "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"
+"1:"
+  "sub    $0x2,%ecx\n"
+  "jns    0b\n"
+
+  "and    $0x1,%ecx\n"
+  "je     2f\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"
+"2:"
+  "popa\n"
+  "ret\n"
+#if !defined(XP_MACOSX)
+  ".previous\n"
+#endif
+);
+
+void FastConvertYUVToRGB32Row(const uint8_t* y_buf,
+                              const uint8_t* u_buf,
+                              const uint8_t* v_buf,
+                              uint8_t* rgb_buf,
+                              int width)
+{
+  if (mozilla::supports_sse()) {
+    FastConvertYUVToRGB32Row_SSE(y_buf, u_buf, v_buf, rgb_buf, width);
+    return;
+  }
+
+  FastConvertYUVToRGB32Row_C(y_buf, u_buf, v_buf, rgb_buf, width, 1);
+}
+
+
+void ScaleYUVToRGB32Row_SSE(const uint8_t* y_buf,
+                            const uint8_t* u_buf,
+                            const uint8_t* v_buf,
+                            uint8_t* rgb_buf,
+                            int width,
+                            int source_dx);
+  asm(
+  ".text\n"
+  ".global ScaleYUVToRGB32Row_SSE\n"
+  ".type ScaleYUVToRGB32Row_SSE, @function\n"
+"ScaleYUVToRGB32Row_SSE:\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    1f\n"
+
+"0:"
+  "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"
+"1:"
+  "sub    $0x2,%ecx\n"
+  "jns    0b\n"
+
+  "and    $0x1,%ecx\n"
+  "je     2f\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"
+
+"2:"
+  "popa\n"
+  "ret\n"
+#if !defined(XP_MACOSX)
+  ".previous\n"
+#endif
+);
+
+void ScaleYUVToRGB32Row(const uint8_t* y_buf,
+                        const uint8_t* u_buf,
+                        const uint8_t* v_buf,
+                        uint8_t* rgb_buf,
+                        int width,
+                        int source_dx)
+{
+  if (mozilla::supports_sse()) {
+    ScaleYUVToRGB32Row_SSE(y_buf, u_buf, v_buf, rgb_buf,
+                           width, source_dx);
+    return;
+  }
+
+  ScaleYUVToRGB32Row_C(y_buf, u_buf, v_buf, rgb_buf,
+                       width, source_dx);
+}
+
+void LinearScaleYUVToRGB32Row_SSE(const uint8_t* y_buf,
+                                  const uint8_t* u_buf,
+                                  const uint8_t* v_buf,
+                                  uint8_t* rgb_buf,
+                                  int width,
+                                  int source_dx);
+  asm(
+  ".text\n"
+  ".global LinearScaleYUVToRGB32Row_SSE\n"
+  ".type LinearScaleYUVToRGB32Row_SSE, @function\n"
+"LinearScaleYUVToRGB32Row_SSE:\n"
+  "pusha\n"
+  "mov    0x24(%esp),%edx\n"
+  "mov    0x28(%esp),%edi\n"
+  "mov    0x30(%esp),%ebp\n"
+
+  // source_width = width * source_dx + ebx
+  "mov    0x34(%esp), %ecx\n"
+  "imull  0x38(%esp), %ecx\n"
+  "mov    %ecx, 0x34(%esp)\n"
+
+  "mov    0x38(%esp), %ecx\n"
+  "xor    %ebx,%ebx\n"     // x = 0
+  "cmp    $0x20000,%ecx\n" // if source_dx >= 2.0
+  "jl     1f\n"
+  "mov    $0x8000,%ebx\n"  // x = 0.5 for 1/2 or less
+  "jmp    1f\n"
+
+"0:"
+  "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    2f\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"
+
+"1:"
+  "cmp    0x34(%esp), %ebx\n"
+  "jl     0b\n"
+  "popa\n"
+  "ret\n"
+
+"2:"
+  "paddsw %mm0, %mm1\n"
+  "psraw $6, %mm1\n"
+  "packuswb %mm1, %mm1\n"
+  "movd %mm1, (%ebp)\n"
+  "popa\n"
+  "ret\n"
+#if !defined(XP_MACOSX)
+  ".previous\n"
+#endif
+);
+
+void LinearScaleYUVToRGB32Row(const uint8_t* y_buf,
+                              const uint8_t* u_buf,
+                              const uint8_t* v_buf,
+                              uint8_t* rgb_buf,
+                              int width,
+                              int source_dx)
+{
+  if (mozilla::supports_sse()) {
+    LinearScaleYUVToRGB32Row_SSE(y_buf, u_buf, v_buf, rgb_buf,
+                                 width, source_dx);
+    return;
+  }
+
+  LinearScaleYUVToRGB32Row_C(y_buf, u_buf, v_buf, rgb_buf,
+                             width, source_dx);
+}
+
+#elif defined(MOZILLA_MAY_SUPPORT_SSE) && defined(ARCH_CPU_X86_32) && defined(__PIC__)
+
+void PICConvertYUVToRGB32Row_SSE(const uint8_t* y_buf,
+                                 const uint8_t* u_buf,
+                                 const uint8_t* v_buf,
+                                 uint8_t* rgb_buf,
+                                 int width,
+                                 const int16_t *kCoefficientsRgbY);
+
+  asm(
+  ".text\n"
+#if defined(XP_MACOSX)
+"_PICConvertYUVToRGB32Row_SSE:\n"
+#else
+"PICConvertYUVToRGB32Row_SSE:\n"
+#endif
+  "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    1f\n"
+
+"0:"
+  "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"
+"1:"
+  "subl   $0x2,0x34(%esp)\n"
+  "jns    0b\n"
+
+  "andl   $0x1,0x34(%esp)\n"
+  "je     2f\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"
+"2:"
+  "popa\n"
+  "ret\n"
+#if !defined(XP_MACOSX)
+  ".previous\n"
+#endif
+);
+
+void FastConvertYUVToRGB32Row(const uint8_t* y_buf,
+                              const uint8_t* u_buf,
+                              const uint8_t* v_buf,
+                              uint8_t* rgb_buf,
+                              int width)
+{
+  if (mozilla::supports_sse()) {
+    PICConvertYUVToRGB32Row_SSE(y_buf, u_buf, v_buf, rgb_buf, width,
+                                &kCoefficientsRgbY[0][0]);
+    return;
+  }
+
+  FastConvertYUVToRGB32Row_C(y_buf, u_buf, v_buf, rgb_buf, width, 1);
+}
+
+void PICScaleYUVToRGB32Row_SSE(const uint8_t* y_buf,
+                               const uint8_t* u_buf,
+                               const uint8_t* v_buf,
+                               uint8_t* rgb_buf,
+                               int width,
+                               int source_dx,
+                               const int16_t *kCoefficientsRgbY);
+
+  asm(
+  ".text\n"
+#if defined(XP_MACOSX)
+"_PICScaleYUVToRGB32Row_SSE:\n"
+#else
+"PICScaleYUVToRGB32Row_SSE:\n"
+#endif
+  "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    1f\n"
+
+"0:"
+  "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"
+"1:"
+  "subl   $0x2,0x34(%esp)\n"
+  "jns    0b\n"
+
+  "andl   $0x1,0x34(%esp)\n"
+  "je     2f\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"
+
+"2:"
+  "popa\n"
+  "ret\n"
+#if !defined(XP_MACOSX)
+  ".previous\n"
+#endif
+);
+
+void ScaleYUVToRGB32Row(const uint8_t* y_buf,
+                        const uint8_t* u_buf,
+                        const uint8_t* v_buf,
+                        uint8_t* rgb_buf,
+                        int width,
+                        int source_dx)
+{
+  if (mozilla::supports_sse()) {
+    PICScaleYUVToRGB32Row_SSE(y_buf, u_buf, v_buf, rgb_buf, width, source_dx,
+                              &kCoefficientsRgbY[0][0]);
+    return;
+  }
+
+  ScaleYUVToRGB32Row_C(y_buf, u_buf, v_buf, rgb_buf, width, source_dx);
+}
+
+void PICLinearScaleYUVToRGB32Row_SSE(const uint8_t* y_buf,
+                                     const uint8_t* u_buf,
+                                     const uint8_t* v_buf,
+                                     uint8_t* rgb_buf,
+                                     int width,
+                                     int source_dx,
+                                     const int16_t *kCoefficientsRgbY);
+
+  asm(
+  ".text\n"
+#if defined(XP_MACOSX)
+"_PICLinearScaleYUVToRGB32Row_SSE:\n"
+#else
+"PICLinearScaleYUVToRGB32Row_SSE:\n"
+#endif
+  "pusha\n"
+  "mov    0x24(%esp),%edx\n"
+  "mov    0x30(%esp),%ebp\n"
+  "mov    0x34(%esp),%ecx\n"
+  "mov    0x3c(%esp),%edi\n"
+  "xor    %ebx,%ebx\n"
+
+  // source_width = width * source_dx + ebx
+  "mov    0x34(%esp), %ecx\n"
+  "imull  0x38(%esp), %ecx\n"
+  "mov    %ecx, 0x34(%esp)\n"
+
+  "mov    0x38(%esp), %ecx\n"
+  "xor    %ebx,%ebx\n"     // x = 0
+  "cmp    $0x20000,%ecx\n" // if source_dx >= 2.0
+  "jl     1f\n"
+  "mov    $0x8000,%ebx\n"  // x = 0.5 for 1/2 or less
+  "jmp    1f\n"
+
+"0:"
+  "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    2f\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"
+
+"1:"
+  "cmp    %ebx, 0x34(%esp)\n"
+  "jg     0b\n"
+  "popa\n"
+  "ret\n"
+
+"2:"
+  "paddsw %mm0, %mm1\n"
+  "psraw $6, %mm1\n"
+  "packuswb %mm1, %mm1\n"
+  "movd %mm1, (%ebp)\n"
+  "popa\n"
+  "ret\n"
+#if !defined(XP_MACOSX)
+  ".previous\n"
+#endif
+);
+
+
+void LinearScaleYUVToRGB32Row(const uint8_t* y_buf,
+                              const uint8_t* u_buf,
+                              const uint8_t* v_buf,
+                              uint8_t* rgb_buf,
+                              int width,
+                              int source_dx)
+{
+  if (mozilla::supports_sse()) {
+    PICLinearScaleYUVToRGB32Row_SSE(y_buf, u_buf, v_buf, rgb_buf, width,
+                                    source_dx, &kCoefficientsRgbY[0][0]);
+    return;
+  }
+
+  LinearScaleYUVToRGB32Row_C(y_buf, u_buf, v_buf, rgb_buf, width, source_dx);
+}
+#else
+void FastConvertYUVToRGB32Row(const uint8_t* y_buf,
+                              const uint8_t* u_buf,
+                              const uint8_t* v_buf,
+                              uint8_t* rgb_buf,
+                              int width) {
+  FastConvertYUVToRGB32Row_C(y_buf, u_buf, v_buf, rgb_buf, width, 1);
+}
+
+void ScaleYUVToRGB32Row(const uint8_t* y_buf,
+                        const uint8_t* u_buf,
+                        const uint8_t* v_buf,
+                        uint8_t* rgb_buf,
+                        int width,
+                        int source_dx) {
+  ScaleYUVToRGB32Row_C(y_buf, u_buf, v_buf, rgb_buf, width, source_dx);
+}
+
+void LinearScaleYUVToRGB32Row(const uint8_t* y_buf,
+                              const uint8_t* u_buf,
+                              const uint8_t* v_buf,
+                              uint8_t* rgb_buf,
+                              int width,
+                              int source_dx) {
+  LinearScaleYUVToRGB32Row_C(y_buf, u_buf, v_buf, rgb_buf, width, source_dx);
+}
+#endif
+
+}