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-rw-r--r--files/source/row_posix.cc659
1 files changed, 659 insertions, 0 deletions
diff --git a/files/source/row_posix.cc b/files/source/row_posix.cc
new file mode 100644
index 00000000..88ce475b
--- /dev/null
+++ b/files/source/row_posix.cc
@@ -0,0 +1,659 @@
+/*
+ * Copyright (c) 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 "row.h"
+
+extern "C" {
+
+#ifdef HAS_ARGBTOYROW_SSSE3
+
+// Constant multiplication table for converting ARGB to I400.
+extern "C" TALIGN16(const uint8, kMultiplyMaskARGBToI400[16]) = {
+ 13u, 64u, 33u, 0u, 13u, 64u, 33u, 0u, 13u, 64u, 33u, 0u, 13u, 64u, 33u, 0u
+};
+
+extern "C" TALIGN16(const uint8, kAdd16[16]) = {
+ 1u, 1u, 1u, 1u, 1u, 1u, 1u, 1u, 1u, 1u, 1u, 1u, 1u, 1u, 1u, 1u
+};
+
+// Shuffle table for converting BG24 to ARGB.
+extern "C" TALIGN16(const uint8, kShuffleMaskBG24ToARGB[16]) = {
+ 0u, 1u, 2u, 12u, 3u, 4u, 5u, 13u, 6u, 7u, 8u, 14u, 9u, 10u, 11u, 15u
+};
+
+// Shuffle table for converting RAW to ARGB.
+extern "C" TALIGN16(const uint8, kShuffleMaskRAWToARGB[16]) = {
+ 2u, 1u, 0u, 12u, 5u, 4u, 3u, 13u, 8u, 7u, 6u, 14u, 11u, 10u, 9u, 15u
+};
+
+void ARGBToYRow_SSSE3(const uint8* src_argb, uint8* dst_y, int pix) {
+ asm volatile(
+ "movdqa (%3),%%xmm7\n"
+ "movdqa (%4),%%xmm6\n"
+ "movdqa %%xmm6,%%xmm5\n"
+ "psllw $0x4,%%xmm5\n" // Generate a mask of 0x10 on each byte.
+"1:"
+ "movdqa (%0),%%xmm0\n"
+ "pmaddubsw %%xmm7,%%xmm0\n"
+ "movdqa 0x10(%0),%%xmm1\n"
+ "psrlw $0x7,%%xmm0\n"
+ "pmaddubsw %%xmm7,%%xmm1\n"
+ "lea 0x20(%0),%0\n"
+ "psrlw $0x7,%%xmm1\n"
+ "packuswb %%xmm1,%%xmm0\n"
+ "pmaddubsw %%xmm6,%%xmm0\n"
+ "packuswb %%xmm0,%%xmm0\n"
+ "paddb %%xmm5,%%xmm0\n"
+ "movq %%xmm0,(%1)\n"
+ "lea 0x8(%1),%1\n"
+ "sub $0x8,%2\n"
+ "ja 1b\n"
+ : "+r"(src_argb), // %0
+ "+r"(dst_y), // %1
+ "+r"(pix) // %2
+ : "r"(kMultiplyMaskARGBToI400), // %3
+ "r"(kAdd16) // %4
+ : "memory"
+);
+}
+#endif
+
+#ifdef HAS_BG24TOARGBROW_SSSE3
+void BG24ToARGBRow_SSSE3(const uint8* src_bg24, uint8* dst_argb, int pix) {
+ asm volatile(
+ "pcmpeqb %%xmm7,%%xmm7\n" // generate mask 0xff000000
+ "pslld $0x18,%%xmm7\n"
+ "movdqa (%3),%%xmm6\n"
+"1:"
+ "movdqa (%0),%%xmm0\n"
+ "movdqa 0x10(%0),%%xmm1\n"
+ "movdqa 0x20(%0),%%xmm3\n"
+ "lea 0x30(%0),%0\n"
+ "movdqa %%xmm3,%%xmm2\n"
+ "palignr $0x8,%%xmm1,%%xmm2\n" // xmm2 = { xmm3[0:3] xmm1[8:15] }
+ "pshufb %%xmm6,%%xmm2\n"
+ "por %%xmm7,%%xmm2\n"
+ "palignr $0xc,%%xmm0,%%xmm1\n" // xmm1 = { xmm3[0:7] xmm0[12:15] }
+ "pshufb %%xmm6,%%xmm0\n"
+ "movdqa %%xmm2,0x20(%1)\n"
+ "por %%xmm7,%%xmm0\n"
+ "pshufb %%xmm6,%%xmm1\n"
+ "movdqa %%xmm0,(%1)\n"
+ "por %%xmm7,%%xmm1\n"
+ "palignr $0x4,%%xmm3,%%xmm3\n" // xmm3 = { xmm3[4:15] }
+ "pshufb %%xmm6,%%xmm3\n"
+ "movdqa %%xmm1,0x10(%1)\n"
+ "por %%xmm7,%%xmm3\n"
+ "movdqa %%xmm3,0x30(%1)\n"
+ "lea 0x40(%1),%1\n"
+ "sub $0x10,%2\n"
+ "ja 1b\n"
+ : "+r"(src_bg24), // %0
+ "+r"(dst_argb), // %1
+ "+r"(pix) // %2
+ : "r"(kShuffleMaskBG24ToARGB) // %3
+ : "memory"
+);
+}
+
+void RAWToARGBRow_SSSE3(const uint8* src_raw, uint8* dst_argb, int pix) {
+ asm volatile(
+ "pcmpeqb %%xmm7,%%xmm7\n" // generate mask 0xff000000
+ "pslld $0x18,%%xmm7\n"
+ "movdqa (%3),%%xmm6\n"
+"1:"
+ "movdqa (%0),%%xmm0\n"
+ "movdqa 0x10(%0),%%xmm1\n"
+ "movdqa 0x20(%0),%%xmm3\n"
+ "lea 0x30(%0),%0\n"
+ "movdqa %%xmm3,%%xmm2\n"
+ "palignr $0x8,%%xmm1,%%xmm2\n" // xmm2 = { xmm3[0:3] xmm1[8:15] }
+ "pshufb %%xmm6,%%xmm2\n"
+ "por %%xmm7,%%xmm2\n"
+ "palignr $0xc,%%xmm0,%%xmm1\n" // xmm1 = { xmm3[0:7] xmm0[12:15] }
+ "pshufb %%xmm6,%%xmm0\n"
+ "movdqa %%xmm2,0x20(%1)\n"
+ "por %%xmm7,%%xmm0\n"
+ "pshufb %%xmm6,%%xmm1\n"
+ "movdqa %%xmm0,(%1)\n"
+ "por %%xmm7,%%xmm1\n"
+ "palignr $0x4,%%xmm3,%%xmm3\n" // xmm3 = { xmm3[4:15] }
+ "pshufb %%xmm6,%%xmm3\n"
+ "movdqa %%xmm1,0x10(%1)\n"
+ "por %%xmm7,%%xmm3\n"
+ "movdqa %%xmm3,0x30(%1)\n"
+ "lea 0x40(%1),%1\n"
+ "sub $0x10,%2\n"
+ "ja 1b\n"
+ : "+r"(src_raw), // %0
+ "+r"(dst_argb), // %1
+ "+r"(pix) // %2
+ : "r"(kShuffleMaskRAWToARGB) // %3
+ : "memory"
+);
+}
+#endif
+
+#if defined(__x86_64__)
+
+// 64 bit linux gcc version
+
+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 volatile(
+"1:"
+ "movzb (%1),%%r10\n"
+ "lea 1(%1),%1\n"
+ "movzb (%2),%%r11\n"
+ "lea 1(%2),%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"
+ "lea 2(%0),%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"
+ "lea 8(%3),%3\n"
+ "sub $0x2,%4\n"
+ "ja 1b\n"
+ : "+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 FastConvertYUVToBGRARow(const uint8* y_buf, // rdi
+ const uint8* u_buf, // rsi
+ const uint8* v_buf, // rdx
+ uint8* rgb_buf, // rcx
+ int width) { // r8
+ asm volatile(
+"1:"
+ "movzb (%1),%%r10\n"
+ "lea 1(%1),%1\n"
+ "movzb (%2),%%r11\n"
+ "lea 1(%2),%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"
+ "lea 2(%0),%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"
+ "lea 8(%3),%3\n"
+ "sub $0x2,%4\n"
+ "ja 1b\n"
+ : "+r"(y_buf), // %0
+ "+r"(u_buf), // %1
+ "+r"(v_buf), // %2
+ "+r"(rgb_buf), // %3
+ "+r"(width) // %4
+ : "r" (_kCoefficientsBgraY) // %5
+ : "memory", "r10", "r11", "xmm0", "xmm1", "xmm2", "xmm3"
+);
+}
+
+void FastConvertYUVToABGRRow(const uint8* y_buf, // rdi
+ const uint8* u_buf, // rsi
+ const uint8* v_buf, // rdx
+ uint8* rgb_buf, // rcx
+ int width) { // r8
+ asm volatile(
+"1:"
+ "movzb (%1),%%r10\n"
+ "lea 1(%1),%1\n"
+ "movzb (%2),%%r11\n"
+ "lea 1(%2),%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"
+ "lea 2(%0),%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"
+ "lea 8(%3),%3\n"
+ "sub $0x2,%4\n"
+ "ja 1b\n"
+ : "+r"(y_buf), // %0
+ "+r"(u_buf), // %1
+ "+r"(v_buf), // %2
+ "+r"(rgb_buf), // %3
+ "+r"(width) // %4
+ : "r" (_kCoefficientsAbgrY) // %5
+ : "memory", "r10", "r11", "xmm0", "xmm1", "xmm2", "xmm3"
+);
+}
+
+void FastConvertYUV444ToRGB32Row(const uint8* y_buf, // rdi
+ const uint8* u_buf, // rsi
+ const uint8* v_buf, // rdx
+ uint8* rgb_buf, // rcx
+ int width) { // r8
+ asm volatile(
+"1:"
+ "movzb (%1),%%r10\n"
+ "lea 1(%1),%1\n"
+ "movzb (%2),%%r11\n"
+ "lea 1(%2),%2\n"
+ "movq 2048(%5,%%r10,8),%%xmm0\n"
+ "movzb (%0),%%r10\n"
+ "movq 4096(%5,%%r11,8),%%xmm1\n"
+ "paddsw %%xmm1,%%xmm0\n"
+ "movq (%5,%%r10,8),%%xmm2\n"
+ "lea 1(%0),%0\n"
+ "paddsw %%xmm0,%%xmm2\n"
+ "shufps $0x44,%%xmm2,%%xmm2\n"
+ "psraw $0x6,%%xmm2\n"
+ "packuswb %%xmm2,%%xmm2\n"
+ "movd %%xmm2,0x0(%3)\n"
+ "lea 4(%3),%3\n"
+ "sub $0x1,%4\n"
+ "ja 1b\n"
+ : "+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"
+);
+}
+
+void FastConvertYToRGB32Row(const uint8* y_buf, // rdi
+ uint8* rgb_buf, // rcx
+ int width) { // r8
+ asm volatile(
+"1:"
+ "movzb (%0),%%r10\n"
+ "movzb 0x1(%0),%%r11\n"
+ "movq (%3,%%r10,8),%%xmm2\n"
+ "lea 2(%0),%0\n"
+ "movq (%3,%%r11,8),%%xmm3\n"
+ "shufps $0x44,%%xmm3,%%xmm2\n"
+ "psraw $0x6,%%xmm2\n"
+ "packuswb %%xmm2,%%xmm2\n"
+ "movq %%xmm2,0x0(%1)\n"
+ "lea 8(%1),%1\n"
+ "sub $0x2,%2\n"
+ "ja 1b\n"
+ : "+r"(y_buf), // %0
+ "+r"(rgb_buf), // %1
+ "+r"(width) // %2
+ : "r" (_kCoefficientsRgbY) // %3
+ : "memory", "r10", "r11", "xmm0", "xmm1", "xmm2", "xmm3"
+);
+}
+
+#elif defined(__i386__)
+// 32 bit gcc version
+
+void FastConvertYUVToRGB32Row(const uint8* y_buf,
+ const uint8* u_buf,
+ const uint8* v_buf,
+ uint8* rgb_buf,
+ int width);
+ asm(
+ ".text\n"
+#if defined(OSX) || defined(IOS)
+ ".globl _FastConvertYUVToRGB32Row\n"
+"_FastConvertYUVToRGB32Row:\n"
+#else
+ ".global FastConvertYUVToRGB32Row\n"
+"FastConvertYUVToRGB32Row:\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 0x34(%esp),%ecx\n"
+
+"1:"
+ "movzbl (%edi),%eax\n"
+ "lea 1(%edi),%edi\n"
+ "movzbl (%esi),%ebx\n"
+ "lea 1(%esi),%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"
+ "lea 2(%edx),%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"
+ "lea 8(%ebp),%ebp\n"
+ "sub $0x2,%ecx\n"
+ "ja 1b\n"
+ "popa\n"
+ "ret\n"
+);
+
+void FastConvertYUVToBGRARow(const uint8* y_buf,
+ const uint8* u_buf,
+ const uint8* v_buf,
+ uint8* rgb_buf,
+ int width);
+ asm(
+ ".text\n"
+#if defined(OSX) || defined(IOS)
+ ".globl _FastConvertYUVToBGRARow\n"
+"_FastConvertYUVToBGRARow:\n"
+#else
+ ".global FastConvertYUVToBGRARow\n"
+"FastConvertYUVToBGRARow:\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 0x34(%esp),%ecx\n"
+
+"1:"
+ "movzbl (%edi),%eax\n"
+ "lea 1(%edi),%edi\n"
+ "movzbl (%esi),%ebx\n"
+ "lea 1(%esi),%esi\n"
+ "movq _kCoefficientsBgraY+2048(,%eax,8),%mm0\n"
+ "movzbl (%edx),%eax\n"
+ "paddsw _kCoefficientsBgraY+4096(,%ebx,8),%mm0\n"
+ "movzbl 0x1(%edx),%ebx\n"
+ "movq _kCoefficientsBgraY(,%eax,8),%mm1\n"
+ "lea 2(%edx),%edx\n"
+ "movq _kCoefficientsBgraY(,%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"
+ "lea 8(%ebp),%ebp\n"
+ "sub $0x2,%ecx\n"
+ "ja 1b\n"
+ "popa\n"
+ "ret\n"
+);
+
+void FastConvertYUVToABGRRow(const uint8* y_buf,
+ const uint8* u_buf,
+ const uint8* v_buf,
+ uint8* rgb_buf,
+ int width);
+ asm(
+ ".text\n"
+#if defined(OSX) || defined(IOS)
+ ".globl _FastConvertYUVToABGRRow\n"
+"_FastConvertYUVToABGRRow:\n"
+#else
+ ".global FastConvertYUVToABGRRow\n"
+"FastConvertYUVToABGRRow:\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 0x34(%esp),%ecx\n"
+
+"1:"
+ "movzbl (%edi),%eax\n"
+ "lea 1(%edi),%edi\n"
+ "movzbl (%esi),%ebx\n"
+ "lea 1(%esi),%esi\n"
+ "movq _kCoefficientsAbgrY+2048(,%eax,8),%mm0\n"
+ "movzbl (%edx),%eax\n"
+ "paddsw _kCoefficientsAbgrY+4096(,%ebx,8),%mm0\n"
+ "movzbl 0x1(%edx),%ebx\n"
+ "movq _kCoefficientsAbgrY(,%eax,8),%mm1\n"
+ "lea 2(%edx),%edx\n"
+ "movq _kCoefficientsAbgrY(,%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"
+ "lea 8(%ebp),%ebp\n"
+ "sub $0x2,%ecx\n"
+ "ja 1b\n"
+ "popa\n"
+ "ret\n"
+);
+
+void FastConvertYUV444ToRGB32Row(const uint8* y_buf,
+ const uint8* u_buf,
+ const uint8* v_buf,
+ uint8* rgb_buf,
+ int width);
+ asm(
+ ".text\n"
+#if defined(OSX) || defined(IOS)
+ ".globl _FastConvertYUV444ToRGB32Row\n"
+"_FastConvertYUV444ToRGB32Row:\n"
+#else
+ ".global FastConvertYUV444ToRGB32Row\n"
+"FastConvertYUV444ToRGB32Row:\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 0x34(%esp),%ecx\n"
+
+"1:"
+ "movzbl (%edi),%eax\n"
+ "lea 1(%edi),%edi\n"
+ "movzbl (%esi),%ebx\n"
+ "lea 1(%esi),%esi\n"
+ "movq _kCoefficientsRgbY+2048(,%eax,8),%mm0\n"
+ "movzbl (%edx),%eax\n"
+ "paddsw _kCoefficientsRgbY+4096(,%ebx,8),%mm0\n"
+ "lea 1(%edx),%edx\n"
+ "paddsw _kCoefficientsRgbY(,%eax,8),%mm0\n"
+ "psraw $0x6,%mm0\n"
+ "packuswb %mm0,%mm0\n"
+ "movd %mm0,0x0(%ebp)\n"
+ "lea 4(%ebp),%ebp\n"
+ "sub $0x1,%ecx\n"
+ "ja 1b\n"
+ "popa\n"
+ "ret\n"
+);
+
+void FastConvertYToRGB32Row(const uint8* y_buf,
+ uint8* rgb_buf,
+ int width);
+ asm(
+ ".text\n"
+#if defined(OSX) || defined(IOS)
+ ".globl _FastConvertYToRGB32Row\n"
+"_FastConvertYToRGB32Row:\n"
+#else
+ ".global FastConvertYToRGB32Row\n"
+"FastConvertYToRGB32Row:\n"
+#endif
+ "push %ebx\n"
+ "mov 0x8(%esp),%eax\n"
+ "mov 0xc(%esp),%edx\n"
+ "mov 0x10(%esp),%ecx\n"
+
+"1:"
+ "movzbl (%eax),%ebx\n"
+ "movq _kCoefficientsRgbY(,%ebx,8),%mm0\n"
+ "psraw $0x6,%mm0\n"
+ "movzbl 0x1(%eax),%ebx\n"
+ "movq _kCoefficientsRgbY(,%ebx,8),%mm1\n"
+ "psraw $0x6,%mm1\n"
+ "packuswb %mm1,%mm0\n"
+ "lea 0x2(%eax),%eax\n"
+ "movq %mm0,(%edx)\n"
+ "lea 0x8(%edx),%edx\n"
+ "sub $0x2,%ecx\n"
+ "ja 1b\n"
+ "pop %ebx\n"
+ "ret\n"
+);
+
+#else
+// C reference code that mimic the YUV assembly.
+#define packuswb(x) ((x) < 0 ? 0 : ((x) > 255 ? 255 : (x)))
+#define paddsw(x, y) (((x) + (y)) < -32768 ? -32768 : \
+ (((x) + (y)) > 32767 ? 32767 : ((x) + (y))))
+
+static inline void YuvPixel(uint8 y,
+ uint8 u,
+ uint8 v,
+ uint8* rgb_buf,
+ int ashift,
+ int rshift,
+ int gshift,
+ int bshift) {
+
+ int b = _kCoefficientsRgbY[256+u][0];
+ int g = _kCoefficientsRgbY[256+u][1];
+ int r = _kCoefficientsRgbY[256+u][2];
+ int a = _kCoefficientsRgbY[256+u][3];
+
+ b = paddsw(b, _kCoefficientsRgbY[512+v][0]);
+ g = paddsw(g, _kCoefficientsRgbY[512+v][1]);
+ r = paddsw(r, _kCoefficientsRgbY[512+v][2]);
+ a = paddsw(a, _kCoefficientsRgbY[512+v][3]);
+
+ b = paddsw(b, _kCoefficientsRgbY[y][0]);
+ g = paddsw(g, _kCoefficientsRgbY[y][1]);
+ r = paddsw(r, _kCoefficientsRgbY[y][2]);
+ a = paddsw(a, _kCoefficientsRgbY[y][3]);
+
+ b >>= 6;
+ g >>= 6;
+ r >>= 6;
+ a >>= 6;
+
+ *reinterpret_cast<uint32*>(rgb_buf) = (packuswb(b) << bshift) |
+ (packuswb(g) << gshift) |
+ (packuswb(r) << rshift) |
+ (packuswb(a) << ashift);
+}
+
+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, 24, 16, 8, 0);
+ if ((x + 1) < width) {
+ uint8 y1 = y_buf[x + 1];
+ YuvPixel(y1, u, v, rgb_buf + 4, 24, 16, 8, 0);
+ }
+ rgb_buf += 8; // Advance 2 pixels.
+ }
+}
+
+void FastConvertYUVToBGRARow(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, 0, 8, 16, 24);
+ if ((x + 1) < width) {
+ uint8 y1 = y_buf[x + 1];
+ YuvPixel(y1, u, v, rgb_buf + 4, 0, 8, 16, 24);
+ }
+ rgb_buf += 8; // Advance 2 pixels.
+ }
+}
+
+void FastConvertYUVToABGRRow(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, 24, 0, 8, 16);
+ if ((x + 1) < width) {
+ uint8 y1 = y_buf[x + 1];
+ YuvPixel(y1, u, v, rgb_buf + 4, 24, 0, 8, 16);
+ }
+ rgb_buf += 8; // Advance 2 pixels.
+ }
+}
+
+void FastConvertYUV444ToRGB32Row(const uint8* y_buf,
+ const uint8* u_buf,
+ const uint8* v_buf,
+ uint8* rgb_buf,
+ int width) {
+ for (int x = 0; x < width; ++x) {
+ uint8 u = u_buf[x];
+ uint8 v = v_buf[x];
+ uint8 y = y_buf[x];
+ YuvPixel(y, u, v, rgb_buf, 24, 16, 8, 0);
+ rgb_buf += 4; // Advance 1 pixel.
+ }
+}
+
+void FastConvertYToRGB32Row(const uint8* y_buf,
+ uint8* rgb_buf,
+ int width) {
+ for (int x = 0; x < width; ++x) {
+ uint8 y = y_buf[x];
+ YuvPixel(y, 128, 128, rgb_buf, 24, 16, 8, 0);
+ rgb_buf += 4; // Advance 1 pixel.
+ }
+}
+
+#endif
+
+} // extern "C"
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-07 08:40:08 +0000