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Diffstat (limited to 'media/libaom/src/third_party/libyuv/source/scale_gcc.cc')
-rw-r--r--media/libaom/src/third_party/libyuv/source/scale_gcc.cc1089
1 files changed, 1089 insertions, 0 deletions
diff --git a/media/libaom/src/third_party/libyuv/source/scale_gcc.cc b/media/libaom/src/third_party/libyuv/source/scale_gcc.cc
new file mode 100644
index 000000000..8a6ac5459
--- /dev/null
+++ b/media/libaom/src/third_party/libyuv/source/scale_gcc.cc
@@ -0,0 +1,1089 @@
+/*
+ * Copyright 2013 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/row.h"
+
+#ifdef __cplusplus
+namespace libyuv {
+extern "C" {
+#endif
+
+// This module is for GCC x86 and x64.
+#if !defined(LIBYUV_DISABLE_X86) && (defined(__x86_64__) || defined(__i386__))
+
+// Offsets for source bytes 0 to 9
+static uvec8 kShuf0 =
+ { 0, 1, 3, 4, 5, 7, 8, 9, 128, 128, 128, 128, 128, 128, 128, 128 };
+
+// Offsets for source bytes 11 to 20 with 8 subtracted = 3 to 12.
+static uvec8 kShuf1 =
+ { 3, 4, 5, 7, 8, 9, 11, 12, 128, 128, 128, 128, 128, 128, 128, 128 };
+
+// Offsets for source bytes 21 to 31 with 16 subtracted = 5 to 31.
+static uvec8 kShuf2 =
+ { 5, 7, 8, 9, 11, 12, 13, 15, 128, 128, 128, 128, 128, 128, 128, 128 };
+
+// Offsets for source bytes 0 to 10
+static uvec8 kShuf01 =
+ { 0, 1, 1, 2, 2, 3, 4, 5, 5, 6, 6, 7, 8, 9, 9, 10 };
+
+// Offsets for source bytes 10 to 21 with 8 subtracted = 3 to 13.
+static uvec8 kShuf11 =
+ { 2, 3, 4, 5, 5, 6, 6, 7, 8, 9, 9, 10, 10, 11, 12, 13 };
+
+// Offsets for source bytes 21 to 31 with 16 subtracted = 5 to 31.
+static uvec8 kShuf21 =
+ { 5, 6, 6, 7, 8, 9, 9, 10, 10, 11, 12, 13, 13, 14, 14, 15 };
+
+// Coefficients for source bytes 0 to 10
+static uvec8 kMadd01 =
+ { 3, 1, 2, 2, 1, 3, 3, 1, 2, 2, 1, 3, 3, 1, 2, 2 };
+
+// Coefficients for source bytes 10 to 21
+static uvec8 kMadd11 =
+ { 1, 3, 3, 1, 2, 2, 1, 3, 3, 1, 2, 2, 1, 3, 3, 1 };
+
+// Coefficients for source bytes 21 to 31
+static uvec8 kMadd21 =
+ { 2, 2, 1, 3, 3, 1, 2, 2, 1, 3, 3, 1, 2, 2, 1, 3 };
+
+// Coefficients for source bytes 21 to 31
+static vec16 kRound34 =
+ { 2, 2, 2, 2, 2, 2, 2, 2 };
+
+static uvec8 kShuf38a =
+ { 0, 3, 6, 8, 11, 14, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 };
+
+static uvec8 kShuf38b =
+ { 128, 128, 128, 128, 128, 128, 0, 3, 6, 8, 11, 14, 128, 128, 128, 128 };
+
+// Arrange words 0,3,6 into 0,1,2
+static uvec8 kShufAc =
+ { 0, 1, 6, 7, 12, 13, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 };
+
+// Arrange words 0,3,6 into 3,4,5
+static uvec8 kShufAc3 =
+ { 128, 128, 128, 128, 128, 128, 0, 1, 6, 7, 12, 13, 128, 128, 128, 128 };
+
+// Scaling values for boxes of 3x3 and 2x3
+static uvec16 kScaleAc33 =
+ { 65536 / 9, 65536 / 9, 65536 / 6, 65536 / 9, 65536 / 9, 65536 / 6, 0, 0 };
+
+// Arrange first value for pixels 0,1,2,3,4,5
+static uvec8 kShufAb0 =
+ { 0, 128, 3, 128, 6, 128, 8, 128, 11, 128, 14, 128, 128, 128, 128, 128 };
+
+// Arrange second value for pixels 0,1,2,3,4,5
+static uvec8 kShufAb1 =
+ { 1, 128, 4, 128, 7, 128, 9, 128, 12, 128, 15, 128, 128, 128, 128, 128 };
+
+// Arrange third value for pixels 0,1,2,3,4,5
+static uvec8 kShufAb2 =
+ { 2, 128, 5, 128, 128, 128, 10, 128, 13, 128, 128, 128, 128, 128, 128, 128 };
+
+// Scaling values for boxes of 3x2 and 2x2
+static uvec16 kScaleAb2 =
+ { 65536 / 3, 65536 / 3, 65536 / 2, 65536 / 3, 65536 / 3, 65536 / 2, 0, 0 };
+
+// GCC versions of row functions are verbatim conversions from Visual C.
+// Generated using gcc disassembly on Visual C object file:
+// objdump -D yuvscaler.obj >yuvscaler.txt
+
+void ScaleRowDown2_SSE2(const uint8* src_ptr, ptrdiff_t src_stride,
+ uint8* dst_ptr, int dst_width) {
+ asm volatile (
+ LABELALIGN
+ "1: \n"
+ "movdqu " MEMACCESS(0) ",%%xmm0 \n"
+ "movdqu " MEMACCESS2(0x10,0) ",%%xmm1 \n"
+ "lea " MEMLEA(0x20,0) ",%0 \n"
+ "psrlw $0x8,%%xmm0 \n"
+ "psrlw $0x8,%%xmm1 \n"
+ "packuswb %%xmm1,%%xmm0 \n"
+ "movdqu %%xmm0," MEMACCESS(1) " \n"
+ "lea " MEMLEA(0x10,1) ",%1 \n"
+ "sub $0x10,%2 \n"
+ "jg 1b \n"
+ : "+r"(src_ptr), // %0
+ "+r"(dst_ptr), // %1
+ "+r"(dst_width) // %2
+ :: "memory", "cc", "xmm0", "xmm1"
+ );
+}
+
+void ScaleRowDown2Linear_SSE2(const uint8* src_ptr, ptrdiff_t src_stride,
+ uint8* dst_ptr, int dst_width) {
+ asm volatile (
+ "pcmpeqb %%xmm5,%%xmm5 \n"
+ "psrlw $0x8,%%xmm5 \n"
+
+ LABELALIGN
+ "1: \n"
+ "movdqu " MEMACCESS(0) ",%%xmm0 \n"
+ "movdqu " MEMACCESS2(0x10, 0) ",%%xmm1 \n"
+ "lea " MEMLEA(0x20,0) ",%0 \n"
+ "movdqa %%xmm0,%%xmm2 \n"
+ "psrlw $0x8,%%xmm0 \n"
+ "movdqa %%xmm1,%%xmm3 \n"
+ "psrlw $0x8,%%xmm1 \n"
+ "pand %%xmm5,%%xmm2 \n"
+ "pand %%xmm5,%%xmm3 \n"
+ "pavgw %%xmm2,%%xmm0 \n"
+ "pavgw %%xmm3,%%xmm1 \n"
+ "packuswb %%xmm1,%%xmm0 \n"
+ "movdqu %%xmm0," MEMACCESS(1) " \n"
+ "lea " MEMLEA(0x10,1) ",%1 \n"
+ "sub $0x10,%2 \n"
+ "jg 1b \n"
+ : "+r"(src_ptr), // %0
+ "+r"(dst_ptr), // %1
+ "+r"(dst_width) // %2
+ :: "memory", "cc", "xmm0", "xmm1", "xmm5"
+ );
+}
+
+void ScaleRowDown2Box_SSE2(const uint8* src_ptr, ptrdiff_t src_stride,
+ uint8* dst_ptr, int dst_width) {
+ asm volatile (
+ "pcmpeqb %%xmm5,%%xmm5 \n"
+ "psrlw $0x8,%%xmm5 \n"
+
+ LABELALIGN
+ "1: \n"
+ "movdqu " MEMACCESS(0) ",%%xmm0 \n"
+ "movdqu " MEMACCESS2(0x10,0) ",%%xmm1 \n"
+ MEMOPREG(movdqu,0x00,0,3,1,xmm2) // movdqu (%0,%3,1),%%xmm2
+ MEMOPREG(movdqu,0x10,0,3,1,xmm3) // movdqu 0x10(%0,%3,1),%%xmm3
+ "lea " MEMLEA(0x20,0) ",%0 \n"
+ "pavgb %%xmm2,%%xmm0 \n"
+ "pavgb %%xmm3,%%xmm1 \n"
+ "movdqa %%xmm0,%%xmm2 \n"
+ "psrlw $0x8,%%xmm0 \n"
+ "movdqa %%xmm1,%%xmm3 \n"
+ "psrlw $0x8,%%xmm1 \n"
+ "pand %%xmm5,%%xmm2 \n"
+ "pand %%xmm5,%%xmm3 \n"
+ "pavgw %%xmm2,%%xmm0 \n"
+ "pavgw %%xmm3,%%xmm1 \n"
+ "packuswb %%xmm1,%%xmm0 \n"
+ "movdqu %%xmm0," MEMACCESS(1) " \n"
+ "lea " MEMLEA(0x10,1) ",%1 \n"
+ "sub $0x10,%2 \n"
+ "jg 1b \n"
+ : "+r"(src_ptr), // %0
+ "+r"(dst_ptr), // %1
+ "+r"(dst_width) // %2
+ : "r"((intptr_t)(src_stride)) // %3
+ : "memory", "cc", NACL_R14
+ "xmm0", "xmm1", "xmm2", "xmm3", "xmm5"
+ );
+}
+
+void ScaleRowDown4_SSE2(const uint8* src_ptr, ptrdiff_t src_stride,
+ uint8* dst_ptr, int dst_width) {
+ asm volatile (
+ "pcmpeqb %%xmm5,%%xmm5 \n"
+ "psrld $0x18,%%xmm5 \n"
+ "pslld $0x10,%%xmm5 \n"
+
+ LABELALIGN
+ "1: \n"
+ "movdqu " MEMACCESS(0) ",%%xmm0 \n"
+ "movdqu " MEMACCESS2(0x10,0) ",%%xmm1 \n"
+ "lea " MEMLEA(0x20,0) ",%0 \n"
+ "pand %%xmm5,%%xmm0 \n"
+ "pand %%xmm5,%%xmm1 \n"
+ "packuswb %%xmm1,%%xmm0 \n"
+ "psrlw $0x8,%%xmm0 \n"
+ "packuswb %%xmm0,%%xmm0 \n"
+ "movq %%xmm0," MEMACCESS(1) " \n"
+ "lea " MEMLEA(0x8,1) ",%1 \n"
+ "sub $0x8,%2 \n"
+ "jg 1b \n"
+ : "+r"(src_ptr), // %0
+ "+r"(dst_ptr), // %1
+ "+r"(dst_width) // %2
+ :: "memory", "cc", "xmm0", "xmm1", "xmm5"
+ );
+}
+
+void ScaleRowDown4Box_SSE2(const uint8* src_ptr, ptrdiff_t src_stride,
+ uint8* dst_ptr, int dst_width) {
+ intptr_t stridex3 = 0;
+ asm volatile (
+ "pcmpeqb %%xmm7,%%xmm7 \n"
+ "psrlw $0x8,%%xmm7 \n"
+ "lea " MEMLEA4(0x00,4,4,2) ",%3 \n"
+
+ LABELALIGN
+ "1: \n"
+ "movdqu " MEMACCESS(0) ",%%xmm0 \n"
+ "movdqu " MEMACCESS2(0x10,0) ",%%xmm1 \n"
+ MEMOPREG(movdqu,0x00,0,4,1,xmm2) // movdqu (%0,%4,1),%%xmm2
+ MEMOPREG(movdqu,0x10,0,4,1,xmm3) // movdqu 0x10(%0,%4,1),%%xmm3
+ "pavgb %%xmm2,%%xmm0 \n"
+ "pavgb %%xmm3,%%xmm1 \n"
+ MEMOPREG(movdqu,0x00,0,4,2,xmm2) // movdqu (%0,%4,2),%%xmm2
+ MEMOPREG(movdqu,0x10,0,4,2,xmm3) // movdqu 0x10(%0,%4,2),%%xmm3
+ MEMOPREG(movdqu,0x00,0,3,1,xmm4) // movdqu (%0,%3,1),%%xmm4
+ MEMOPREG(movdqu,0x10,0,3,1,xmm5) // movdqu 0x10(%0,%3,1),%%xmm5
+ "lea " MEMLEA(0x20,0) ",%0 \n"
+ "pavgb %%xmm4,%%xmm2 \n"
+ "pavgb %%xmm2,%%xmm0 \n"
+ "pavgb %%xmm5,%%xmm3 \n"
+ "pavgb %%xmm3,%%xmm1 \n"
+ "movdqa %%xmm0,%%xmm2 \n"
+ "psrlw $0x8,%%xmm0 \n"
+ "movdqa %%xmm1,%%xmm3 \n"
+ "psrlw $0x8,%%xmm1 \n"
+ "pand %%xmm7,%%xmm2 \n"
+ "pand %%xmm7,%%xmm3 \n"
+ "pavgw %%xmm2,%%xmm0 \n"
+ "pavgw %%xmm3,%%xmm1 \n"
+ "packuswb %%xmm1,%%xmm0 \n"
+ "movdqa %%xmm0,%%xmm2 \n"
+ "psrlw $0x8,%%xmm0 \n"
+ "pand %%xmm7,%%xmm2 \n"
+ "pavgw %%xmm2,%%xmm0 \n"
+ "packuswb %%xmm0,%%xmm0 \n"
+ "movq %%xmm0," MEMACCESS(1) " \n"
+ "lea " MEMLEA(0x8,1) ",%1 \n"
+ "sub $0x8,%2 \n"
+ "jg 1b \n"
+ : "+r"(src_ptr), // %0
+ "+r"(dst_ptr), // %1
+ "+r"(dst_width), // %2
+ "+r"(stridex3) // %3
+ : "r"((intptr_t)(src_stride)) // %4
+ : "memory", "cc", NACL_R14
+ "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm7"
+ );
+}
+
+void ScaleRowDown34_SSSE3(const uint8* src_ptr, ptrdiff_t src_stride,
+ uint8* dst_ptr, int dst_width) {
+ asm volatile (
+ "movdqa %0,%%xmm3 \n"
+ "movdqa %1,%%xmm4 \n"
+ "movdqa %2,%%xmm5 \n"
+ :
+ : "m"(kShuf0), // %0
+ "m"(kShuf1), // %1
+ "m"(kShuf2) // %2
+ );
+ asm volatile (
+ LABELALIGN
+ "1: \n"
+ "movdqu " MEMACCESS(0) ",%%xmm0 \n"
+ "movdqu " MEMACCESS2(0x10,0) ",%%xmm2 \n"
+ "lea " MEMLEA(0x20,0) ",%0 \n"
+ "movdqa %%xmm2,%%xmm1 \n"
+ "palignr $0x8,%%xmm0,%%xmm1 \n"
+ "pshufb %%xmm3,%%xmm0 \n"
+ "pshufb %%xmm4,%%xmm1 \n"
+ "pshufb %%xmm5,%%xmm2 \n"
+ "movq %%xmm0," MEMACCESS(1) " \n"
+ "movq %%xmm1," MEMACCESS2(0x8,1) " \n"
+ "movq %%xmm2," MEMACCESS2(0x10,1) " \n"
+ "lea " MEMLEA(0x18,1) ",%1 \n"
+ "sub $0x18,%2 \n"
+ "jg 1b \n"
+ : "+r"(src_ptr), // %0
+ "+r"(dst_ptr), // %1
+ "+r"(dst_width) // %2
+ :: "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5"
+ );
+}
+
+void ScaleRowDown34_1_Box_SSSE3(const uint8* src_ptr,
+ ptrdiff_t src_stride,
+ uint8* dst_ptr, int dst_width) {
+ asm volatile (
+ "movdqa %0,%%xmm2 \n" // kShuf01
+ "movdqa %1,%%xmm3 \n" // kShuf11
+ "movdqa %2,%%xmm4 \n" // kShuf21
+ :
+ : "m"(kShuf01), // %0
+ "m"(kShuf11), // %1
+ "m"(kShuf21) // %2
+ );
+ asm volatile (
+ "movdqa %0,%%xmm5 \n" // kMadd01
+ "movdqa %1,%%xmm0 \n" // kMadd11
+ "movdqa %2,%%xmm1 \n" // kRound34
+ :
+ : "m"(kMadd01), // %0
+ "m"(kMadd11), // %1
+ "m"(kRound34) // %2
+ );
+ asm volatile (
+ LABELALIGN
+ "1: \n"
+ "movdqu " MEMACCESS(0) ",%%xmm6 \n"
+ MEMOPREG(movdqu,0x00,0,3,1,xmm7) // movdqu (%0,%3),%%xmm7
+ "pavgb %%xmm7,%%xmm6 \n"
+ "pshufb %%xmm2,%%xmm6 \n"
+ "pmaddubsw %%xmm5,%%xmm6 \n"
+ "paddsw %%xmm1,%%xmm6 \n"
+ "psrlw $0x2,%%xmm6 \n"
+ "packuswb %%xmm6,%%xmm6 \n"
+ "movq %%xmm6," MEMACCESS(1) " \n"
+ "movdqu " MEMACCESS2(0x8,0) ",%%xmm6 \n"
+ MEMOPREG(movdqu,0x8,0,3,1,xmm7) // movdqu 0x8(%0,%3),%%xmm7
+ "pavgb %%xmm7,%%xmm6 \n"
+ "pshufb %%xmm3,%%xmm6 \n"
+ "pmaddubsw %%xmm0,%%xmm6 \n"
+ "paddsw %%xmm1,%%xmm6 \n"
+ "psrlw $0x2,%%xmm6 \n"
+ "packuswb %%xmm6,%%xmm6 \n"
+ "movq %%xmm6," MEMACCESS2(0x8,1) " \n"
+ "movdqu " MEMACCESS2(0x10,0) ",%%xmm6 \n"
+ MEMOPREG(movdqu,0x10,0,3,1,xmm7) // movdqu 0x10(%0,%3),%%xmm7
+ "lea " MEMLEA(0x20,0) ",%0 \n"
+ "pavgb %%xmm7,%%xmm6 \n"
+ "pshufb %%xmm4,%%xmm6 \n"
+ "pmaddubsw %4,%%xmm6 \n"
+ "paddsw %%xmm1,%%xmm6 \n"
+ "psrlw $0x2,%%xmm6 \n"
+ "packuswb %%xmm6,%%xmm6 \n"
+ "movq %%xmm6," MEMACCESS2(0x10,1) " \n"
+ "lea " MEMLEA(0x18,1) ",%1 \n"
+ "sub $0x18,%2 \n"
+ "jg 1b \n"
+ : "+r"(src_ptr), // %0
+ "+r"(dst_ptr), // %1
+ "+r"(dst_width) // %2
+ : "r"((intptr_t)(src_stride)), // %3
+ "m"(kMadd21) // %4
+ : "memory", "cc", NACL_R14
+ "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"
+ );
+}
+
+void ScaleRowDown34_0_Box_SSSE3(const uint8* src_ptr,
+ ptrdiff_t src_stride,
+ uint8* dst_ptr, int dst_width) {
+ asm volatile (
+ "movdqa %0,%%xmm2 \n" // kShuf01
+ "movdqa %1,%%xmm3 \n" // kShuf11
+ "movdqa %2,%%xmm4 \n" // kShuf21
+ :
+ : "m"(kShuf01), // %0
+ "m"(kShuf11), // %1
+ "m"(kShuf21) // %2
+ );
+ asm volatile (
+ "movdqa %0,%%xmm5 \n" // kMadd01
+ "movdqa %1,%%xmm0 \n" // kMadd11
+ "movdqa %2,%%xmm1 \n" // kRound34
+ :
+ : "m"(kMadd01), // %0
+ "m"(kMadd11), // %1
+ "m"(kRound34) // %2
+ );
+
+ asm volatile (
+ LABELALIGN
+ "1: \n"
+ "movdqu " MEMACCESS(0) ",%%xmm6 \n"
+ MEMOPREG(movdqu,0x00,0,3,1,xmm7) // movdqu (%0,%3,1),%%xmm7
+ "pavgb %%xmm6,%%xmm7 \n"
+ "pavgb %%xmm7,%%xmm6 \n"
+ "pshufb %%xmm2,%%xmm6 \n"
+ "pmaddubsw %%xmm5,%%xmm6 \n"
+ "paddsw %%xmm1,%%xmm6 \n"
+ "psrlw $0x2,%%xmm6 \n"
+ "packuswb %%xmm6,%%xmm6 \n"
+ "movq %%xmm6," MEMACCESS(1) " \n"
+ "movdqu " MEMACCESS2(0x8,0) ",%%xmm6 \n"
+ MEMOPREG(movdqu,0x8,0,3,1,xmm7) // movdqu 0x8(%0,%3,1),%%xmm7
+ "pavgb %%xmm6,%%xmm7 \n"
+ "pavgb %%xmm7,%%xmm6 \n"
+ "pshufb %%xmm3,%%xmm6 \n"
+ "pmaddubsw %%xmm0,%%xmm6 \n"
+ "paddsw %%xmm1,%%xmm6 \n"
+ "psrlw $0x2,%%xmm6 \n"
+ "packuswb %%xmm6,%%xmm6 \n"
+ "movq %%xmm6," MEMACCESS2(0x8,1) " \n"
+ "movdqu " MEMACCESS2(0x10,0) ",%%xmm6 \n"
+ MEMOPREG(movdqu,0x10,0,3,1,xmm7) // movdqu 0x10(%0,%3,1),%%xmm7
+ "lea " MEMLEA(0x20,0) ",%0 \n"
+ "pavgb %%xmm6,%%xmm7 \n"
+ "pavgb %%xmm7,%%xmm6 \n"
+ "pshufb %%xmm4,%%xmm6 \n"
+ "pmaddubsw %4,%%xmm6 \n"
+ "paddsw %%xmm1,%%xmm6 \n"
+ "psrlw $0x2,%%xmm6 \n"
+ "packuswb %%xmm6,%%xmm6 \n"
+ "movq %%xmm6," MEMACCESS2(0x10,1) " \n"
+ "lea " MEMLEA(0x18,1) ",%1 \n"
+ "sub $0x18,%2 \n"
+ "jg 1b \n"
+ : "+r"(src_ptr), // %0
+ "+r"(dst_ptr), // %1
+ "+r"(dst_width) // %2
+ : "r"((intptr_t)(src_stride)), // %3
+ "m"(kMadd21) // %4
+ : "memory", "cc", NACL_R14
+ "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"
+ );
+}
+
+void ScaleRowDown38_SSSE3(const uint8* src_ptr, ptrdiff_t src_stride,
+ uint8* dst_ptr, int dst_width) {
+ asm volatile (
+ "movdqa %3,%%xmm4 \n"
+ "movdqa %4,%%xmm5 \n"
+
+ LABELALIGN
+ "1: \n"
+ "movdqu " MEMACCESS(0) ",%%xmm0 \n"
+ "movdqu " MEMACCESS2(0x10,0) ",%%xmm1 \n"
+ "lea " MEMLEA(0x20,0) ",%0 \n"
+ "pshufb %%xmm4,%%xmm0 \n"
+ "pshufb %%xmm5,%%xmm1 \n"
+ "paddusb %%xmm1,%%xmm0 \n"
+ "movq %%xmm0," MEMACCESS(1) " \n"
+ "movhlps %%xmm0,%%xmm1 \n"
+ "movd %%xmm1," MEMACCESS2(0x8,1) " \n"
+ "lea " MEMLEA(0xc,1) ",%1 \n"
+ "sub $0xc,%2 \n"
+ "jg 1b \n"
+ : "+r"(src_ptr), // %0
+ "+r"(dst_ptr), // %1
+ "+r"(dst_width) // %2
+ : "m"(kShuf38a), // %3
+ "m"(kShuf38b) // %4
+ : "memory", "cc", "xmm0", "xmm1", "xmm4", "xmm5"
+ );
+}
+
+void ScaleRowDown38_2_Box_SSSE3(const uint8* src_ptr,
+ ptrdiff_t src_stride,
+ uint8* dst_ptr, int dst_width) {
+ asm volatile (
+ "movdqa %0,%%xmm2 \n"
+ "movdqa %1,%%xmm3 \n"
+ "movdqa %2,%%xmm4 \n"
+ "movdqa %3,%%xmm5 \n"
+ :
+ : "m"(kShufAb0), // %0
+ "m"(kShufAb1), // %1
+ "m"(kShufAb2), // %2
+ "m"(kScaleAb2) // %3
+ );
+ asm volatile (
+ LABELALIGN
+ "1: \n"
+ "movdqu " MEMACCESS(0) ",%%xmm0 \n"
+ MEMOPREG(movdqu,0x00,0,3,1,xmm1) // movdqu (%0,%3,1),%%xmm1
+ "lea " MEMLEA(0x10,0) ",%0 \n"
+ "pavgb %%xmm1,%%xmm0 \n"
+ "movdqa %%xmm0,%%xmm1 \n"
+ "pshufb %%xmm2,%%xmm1 \n"
+ "movdqa %%xmm0,%%xmm6 \n"
+ "pshufb %%xmm3,%%xmm6 \n"
+ "paddusw %%xmm6,%%xmm1 \n"
+ "pshufb %%xmm4,%%xmm0 \n"
+ "paddusw %%xmm0,%%xmm1 \n"
+ "pmulhuw %%xmm5,%%xmm1 \n"
+ "packuswb %%xmm1,%%xmm1 \n"
+ "movd %%xmm1," MEMACCESS(1) " \n"
+ "psrlq $0x10,%%xmm1 \n"
+ "movd %%xmm1," MEMACCESS2(0x2,1) " \n"
+ "lea " MEMLEA(0x6,1) ",%1 \n"
+ "sub $0x6,%2 \n"
+ "jg 1b \n"
+ : "+r"(src_ptr), // %0
+ "+r"(dst_ptr), // %1
+ "+r"(dst_width) // %2
+ : "r"((intptr_t)(src_stride)) // %3
+ : "memory", "cc", NACL_R14
+ "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6"
+ );
+}
+
+void ScaleRowDown38_3_Box_SSSE3(const uint8* src_ptr,
+ ptrdiff_t src_stride,
+ uint8* dst_ptr, int dst_width) {
+ asm volatile (
+ "movdqa %0,%%xmm2 \n"
+ "movdqa %1,%%xmm3 \n"
+ "movdqa %2,%%xmm4 \n"
+ "pxor %%xmm5,%%xmm5 \n"
+ :
+ : "m"(kShufAc), // %0
+ "m"(kShufAc3), // %1
+ "m"(kScaleAc33) // %2
+ );
+ asm volatile (
+ LABELALIGN
+ "1: \n"
+ "movdqu " MEMACCESS(0) ",%%xmm0 \n"
+ MEMOPREG(movdqu,0x00,0,3,1,xmm6) // movdqu (%0,%3,1),%%xmm6
+ "movhlps %%xmm0,%%xmm1 \n"
+ "movhlps %%xmm6,%%xmm7 \n"
+ "punpcklbw %%xmm5,%%xmm0 \n"
+ "punpcklbw %%xmm5,%%xmm1 \n"
+ "punpcklbw %%xmm5,%%xmm6 \n"
+ "punpcklbw %%xmm5,%%xmm7 \n"
+ "paddusw %%xmm6,%%xmm0 \n"
+ "paddusw %%xmm7,%%xmm1 \n"
+ MEMOPREG(movdqu,0x00,0,3,2,xmm6) // movdqu (%0,%3,2),%%xmm6
+ "lea " MEMLEA(0x10,0) ",%0 \n"
+ "movhlps %%xmm6,%%xmm7 \n"
+ "punpcklbw %%xmm5,%%xmm6 \n"
+ "punpcklbw %%xmm5,%%xmm7 \n"
+ "paddusw %%xmm6,%%xmm0 \n"
+ "paddusw %%xmm7,%%xmm1 \n"
+ "movdqa %%xmm0,%%xmm6 \n"
+ "psrldq $0x2,%%xmm0 \n"
+ "paddusw %%xmm0,%%xmm6 \n"
+ "psrldq $0x2,%%xmm0 \n"
+ "paddusw %%xmm0,%%xmm6 \n"
+ "pshufb %%xmm2,%%xmm6 \n"
+ "movdqa %%xmm1,%%xmm7 \n"
+ "psrldq $0x2,%%xmm1 \n"
+ "paddusw %%xmm1,%%xmm7 \n"
+ "psrldq $0x2,%%xmm1 \n"
+ "paddusw %%xmm1,%%xmm7 \n"
+ "pshufb %%xmm3,%%xmm7 \n"
+ "paddusw %%xmm7,%%xmm6 \n"
+ "pmulhuw %%xmm4,%%xmm6 \n"
+ "packuswb %%xmm6,%%xmm6 \n"
+ "movd %%xmm6," MEMACCESS(1) " \n"
+ "psrlq $0x10,%%xmm6 \n"
+ "movd %%xmm6," MEMACCESS2(0x2,1) " \n"
+ "lea " MEMLEA(0x6,1) ",%1 \n"
+ "sub $0x6,%2 \n"
+ "jg 1b \n"
+ : "+r"(src_ptr), // %0
+ "+r"(dst_ptr), // %1
+ "+r"(dst_width) // %2
+ : "r"((intptr_t)(src_stride)) // %3
+ : "memory", "cc", NACL_R14
+ "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7"
+ );
+}
+
+// Reads 16xN bytes and produces 16 shorts at a time.
+void ScaleAddRows_SSE2(const uint8* src_ptr, ptrdiff_t src_stride,
+ uint16* dst_ptr, int src_width, int src_height) {
+ int tmp_height = 0;
+ intptr_t tmp_src = 0;
+ asm volatile (
+ "mov %0,%3 \n" // row pointer
+ "mov %5,%2 \n" // height
+ "pxor %%xmm0,%%xmm0 \n" // clear accumulators
+ "pxor %%xmm1,%%xmm1 \n"
+ "pxor %%xmm4,%%xmm4 \n"
+
+ LABELALIGN
+ "1: \n"
+ "movdqu " MEMACCESS(3) ",%%xmm2 \n"
+ "add %6,%3 \n"
+ "movdqa %%xmm2,%%xmm3 \n"
+ "punpcklbw %%xmm4,%%xmm2 \n"
+ "punpckhbw %%xmm4,%%xmm3 \n"
+ "paddusw %%xmm2,%%xmm0 \n"
+ "paddusw %%xmm3,%%xmm1 \n"
+ "sub $0x1,%2 \n"
+ "jg 1b \n"
+
+ "movdqu %%xmm0," MEMACCESS(1) " \n"
+ "movdqu %%xmm1," MEMACCESS2(0x10,1) " \n"
+ "lea " MEMLEA(0x20,1) ",%1 \n"
+ "lea " MEMLEA(0x10,0) ",%0 \n" // src_ptr += 16
+ "mov %0,%3 \n" // row pointer
+ "mov %5,%2 \n" // height
+ "pxor %%xmm0,%%xmm0 \n" // clear accumulators
+ "pxor %%xmm1,%%xmm1 \n"
+ "sub $0x10,%4 \n"
+ "jg 1b \n"
+ : "+r"(src_ptr), // %0
+ "+r"(dst_ptr), // %1
+ "+r"(tmp_height), // %2
+ "+r"(tmp_src), // %3
+ "+r"(src_width), // %4
+ "+rm"(src_height) // %5
+ : "rm"((intptr_t)(src_stride)) // %6
+ : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4"
+ );
+}
+
+// Bilinear column filtering. SSSE3 version.
+void ScaleFilterCols_SSSE3(uint8* dst_ptr, const uint8* src_ptr,
+ int dst_width, int x, int dx) {
+ intptr_t x0 = 0, x1 = 0, temp_pixel = 0;
+ asm volatile (
+ "movd %6,%%xmm2 \n"
+ "movd %7,%%xmm3 \n"
+ "movl $0x04040000,%k2 \n"
+ "movd %k2,%%xmm5 \n"
+ "pcmpeqb %%xmm6,%%xmm6 \n"
+ "psrlw $0x9,%%xmm6 \n"
+ "pextrw $0x1,%%xmm2,%k3 \n"
+ "subl $0x2,%5 \n"
+ "jl 29f \n"
+ "movdqa %%xmm2,%%xmm0 \n"
+ "paddd %%xmm3,%%xmm0 \n"
+ "punpckldq %%xmm0,%%xmm2 \n"
+ "punpckldq %%xmm3,%%xmm3 \n"
+ "paddd %%xmm3,%%xmm3 \n"
+ "pextrw $0x3,%%xmm2,%k4 \n"
+
+ LABELALIGN
+ "2: \n"
+ "movdqa %%xmm2,%%xmm1 \n"
+ "paddd %%xmm3,%%xmm2 \n"
+ MEMOPARG(movzwl,0x00,1,3,1,k2) // movzwl (%1,%3,1),%k2
+ "movd %k2,%%xmm0 \n"
+ "psrlw $0x9,%%xmm1 \n"
+ MEMOPARG(movzwl,0x00,1,4,1,k2) // movzwl (%1,%4,1),%k2
+ "movd %k2,%%xmm4 \n"
+ "pshufb %%xmm5,%%xmm1 \n"
+ "punpcklwd %%xmm4,%%xmm0 \n"
+ "pxor %%xmm6,%%xmm1 \n"
+ "pmaddubsw %%xmm1,%%xmm0 \n"
+ "pextrw $0x1,%%xmm2,%k3 \n"
+ "pextrw $0x3,%%xmm2,%k4 \n"
+ "psrlw $0x7,%%xmm0 \n"
+ "packuswb %%xmm0,%%xmm0 \n"
+ "movd %%xmm0,%k2 \n"
+ "mov %w2," MEMACCESS(0) " \n"
+ "lea " MEMLEA(0x2,0) ",%0 \n"
+ "sub $0x2,%5 \n"
+ "jge 2b \n"
+
+ LABELALIGN
+ "29: \n"
+ "addl $0x1,%5 \n"
+ "jl 99f \n"
+ MEMOPARG(movzwl,0x00,1,3,1,k2) // movzwl (%1,%3,1),%k2
+ "movd %k2,%%xmm0 \n"
+ "psrlw $0x9,%%xmm2 \n"
+ "pshufb %%xmm5,%%xmm2 \n"
+ "pxor %%xmm6,%%xmm2 \n"
+ "pmaddubsw %%xmm2,%%xmm0 \n"
+ "psrlw $0x7,%%xmm0 \n"
+ "packuswb %%xmm0,%%xmm0 \n"
+ "movd %%xmm0,%k2 \n"
+ "mov %b2," MEMACCESS(0) " \n"
+ "99: \n"
+ : "+r"(dst_ptr), // %0
+ "+r"(src_ptr), // %1
+ "+a"(temp_pixel), // %2
+ "+r"(x0), // %3
+ "+r"(x1), // %4
+ "+rm"(dst_width) // %5
+ : "rm"(x), // %6
+ "rm"(dx) // %7
+ : "memory", "cc", NACL_R14
+ "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6"
+ );
+}
+
+// Reads 4 pixels, duplicates them and writes 8 pixels.
+// Alignment requirement: src_argb 16 byte aligned, dst_argb 16 byte aligned.
+void ScaleColsUp2_SSE2(uint8* dst_ptr, const uint8* src_ptr,
+ int dst_width, int x, int dx) {
+ asm volatile (
+ LABELALIGN
+ "1: \n"
+ "movdqu " MEMACCESS(1) ",%%xmm0 \n"
+ "lea " MEMLEA(0x10,1) ",%1 \n"
+ "movdqa %%xmm0,%%xmm1 \n"
+ "punpcklbw %%xmm0,%%xmm0 \n"
+ "punpckhbw %%xmm1,%%xmm1 \n"
+ "movdqu %%xmm0," MEMACCESS(0) " \n"
+ "movdqu %%xmm1," MEMACCESS2(0x10,0) " \n"
+ "lea " MEMLEA(0x20,0) ",%0 \n"
+ "sub $0x20,%2 \n"
+ "jg 1b \n"
+
+ : "+r"(dst_ptr), // %0
+ "+r"(src_ptr), // %1
+ "+r"(dst_width) // %2
+ :: "memory", "cc", "xmm0", "xmm1"
+ );
+}
+
+void ScaleARGBRowDown2_SSE2(const uint8* src_argb,
+ ptrdiff_t src_stride,
+ uint8* dst_argb, int dst_width) {
+ asm volatile (
+ LABELALIGN
+ "1: \n"
+ "movdqu " MEMACCESS(0) ",%%xmm0 \n"
+ "movdqu " MEMACCESS2(0x10,0) ",%%xmm1 \n"
+ "lea " MEMLEA(0x20,0) ",%0 \n"
+ "shufps $0xdd,%%xmm1,%%xmm0 \n"
+ "movdqu %%xmm0," MEMACCESS(1) " \n"
+ "lea " MEMLEA(0x10,1) ",%1 \n"
+ "sub $0x4,%2 \n"
+ "jg 1b \n"
+ : "+r"(src_argb), // %0
+ "+r"(dst_argb), // %1
+ "+r"(dst_width) // %2
+ :: "memory", "cc", "xmm0", "xmm1"
+ );
+}
+
+void ScaleARGBRowDown2Linear_SSE2(const uint8* src_argb,
+ ptrdiff_t src_stride,
+ uint8* dst_argb, int dst_width) {
+ asm volatile (
+ LABELALIGN
+ "1: \n"
+ "movdqu " MEMACCESS(0) ",%%xmm0 \n"
+ "movdqu " MEMACCESS2(0x10,0) ",%%xmm1 \n"
+ "lea " MEMLEA(0x20,0) ",%0 \n"
+ "movdqa %%xmm0,%%xmm2 \n"
+ "shufps $0x88,%%xmm1,%%xmm0 \n"
+ "shufps $0xdd,%%xmm1,%%xmm2 \n"
+ "pavgb %%xmm2,%%xmm0 \n"
+ "movdqu %%xmm0," MEMACCESS(1) " \n"
+ "lea " MEMLEA(0x10,1) ",%1 \n"
+ "sub $0x4,%2 \n"
+ "jg 1b \n"
+ : "+r"(src_argb), // %0
+ "+r"(dst_argb), // %1
+ "+r"(dst_width) // %2
+ :: "memory", "cc", "xmm0", "xmm1"
+ );
+}
+
+void ScaleARGBRowDown2Box_SSE2(const uint8* src_argb,
+ ptrdiff_t src_stride,
+ uint8* dst_argb, int dst_width) {
+ asm volatile (
+ LABELALIGN
+ "1: \n"
+ "movdqu " MEMACCESS(0) ",%%xmm0 \n"
+ "movdqu " MEMACCESS2(0x10,0) ",%%xmm1 \n"
+ MEMOPREG(movdqu,0x00,0,3,1,xmm2) // movdqu (%0,%3,1),%%xmm2
+ MEMOPREG(movdqu,0x10,0,3,1,xmm3) // movdqu 0x10(%0,%3,1),%%xmm3
+ "lea " MEMLEA(0x20,0) ",%0 \n"
+ "pavgb %%xmm2,%%xmm0 \n"
+ "pavgb %%xmm3,%%xmm1 \n"
+ "movdqa %%xmm0,%%xmm2 \n"
+ "shufps $0x88,%%xmm1,%%xmm0 \n"
+ "shufps $0xdd,%%xmm1,%%xmm2 \n"
+ "pavgb %%xmm2,%%xmm0 \n"
+ "movdqu %%xmm0," MEMACCESS(1) " \n"
+ "lea " MEMLEA(0x10,1) ",%1 \n"
+ "sub $0x4,%2 \n"
+ "jg 1b \n"
+ : "+r"(src_argb), // %0
+ "+r"(dst_argb), // %1
+ "+r"(dst_width) // %2
+ : "r"((intptr_t)(src_stride)) // %3
+ : "memory", "cc", NACL_R14
+ "xmm0", "xmm1", "xmm2", "xmm3"
+ );
+}
+
+// Reads 4 pixels at a time.
+// Alignment requirement: dst_argb 16 byte aligned.
+void ScaleARGBRowDownEven_SSE2(const uint8* src_argb, ptrdiff_t src_stride,
+ int src_stepx, uint8* dst_argb, int dst_width) {
+ intptr_t src_stepx_x4 = (intptr_t)(src_stepx);
+ intptr_t src_stepx_x12 = 0;
+ asm volatile (
+ "lea " MEMLEA3(0x00,1,4) ",%1 \n"
+ "lea " MEMLEA4(0x00,1,1,2) ",%4 \n"
+ LABELALIGN
+ "1: \n"
+ "movd " MEMACCESS(0) ",%%xmm0 \n"
+ MEMOPREG(movd,0x00,0,1,1,xmm1) // movd (%0,%1,1),%%xmm1
+ "punpckldq %%xmm1,%%xmm0 \n"
+ MEMOPREG(movd,0x00,0,1,2,xmm2) // movd (%0,%1,2),%%xmm2
+ MEMOPREG(movd,0x00,0,4,1,xmm3) // movd (%0,%4,1),%%xmm3
+ "lea " MEMLEA4(0x00,0,1,4) ",%0 \n"
+ "punpckldq %%xmm3,%%xmm2 \n"
+ "punpcklqdq %%xmm2,%%xmm0 \n"
+ "movdqu %%xmm0," MEMACCESS(2) " \n"
+ "lea " MEMLEA(0x10,2) ",%2 \n"
+ "sub $0x4,%3 \n"
+ "jg 1b \n"
+ : "+r"(src_argb), // %0
+ "+r"(src_stepx_x4), // %1
+ "+r"(dst_argb), // %2
+ "+r"(dst_width), // %3
+ "+r"(src_stepx_x12) // %4
+ :: "memory", "cc", NACL_R14
+ "xmm0", "xmm1", "xmm2", "xmm3"
+ );
+}
+
+// Blends four 2x2 to 4x1.
+// Alignment requirement: dst_argb 16 byte aligned.
+void ScaleARGBRowDownEvenBox_SSE2(const uint8* src_argb,
+ ptrdiff_t src_stride, int src_stepx,
+ uint8* dst_argb, int dst_width) {
+ intptr_t src_stepx_x4 = (intptr_t)(src_stepx);
+ intptr_t src_stepx_x12 = 0;
+ intptr_t row1 = (intptr_t)(src_stride);
+ asm volatile (
+ "lea " MEMLEA3(0x00,1,4) ",%1 \n"
+ "lea " MEMLEA4(0x00,1,1,2) ",%4 \n"
+ "lea " MEMLEA4(0x00,0,5,1) ",%5 \n"
+
+ LABELALIGN
+ "1: \n"
+ "movq " MEMACCESS(0) ",%%xmm0 \n"
+ MEMOPREG(movhps,0x00,0,1,1,xmm0) // movhps (%0,%1,1),%%xmm0
+ MEMOPREG(movq,0x00,0,1,2,xmm1) // movq (%0,%1,2),%%xmm1
+ MEMOPREG(movhps,0x00,0,4,1,xmm1) // movhps (%0,%4,1),%%xmm1
+ "lea " MEMLEA4(0x00,0,1,4) ",%0 \n"
+ "movq " MEMACCESS(5) ",%%xmm2 \n"
+ MEMOPREG(movhps,0x00,5,1,1,xmm2) // movhps (%5,%1,1),%%xmm2
+ MEMOPREG(movq,0x00,5,1,2,xmm3) // movq (%5,%1,2),%%xmm3
+ MEMOPREG(movhps,0x00,5,4,1,xmm3) // movhps (%5,%4,1),%%xmm3
+ "lea " MEMLEA4(0x00,5,1,4) ",%5 \n"
+ "pavgb %%xmm2,%%xmm0 \n"
+ "pavgb %%xmm3,%%xmm1 \n"
+ "movdqa %%xmm0,%%xmm2 \n"
+ "shufps $0x88,%%xmm1,%%xmm0 \n"
+ "shufps $0xdd,%%xmm1,%%xmm2 \n"
+ "pavgb %%xmm2,%%xmm0 \n"
+ "movdqu %%xmm0," MEMACCESS(2) " \n"
+ "lea " MEMLEA(0x10,2) ",%2 \n"
+ "sub $0x4,%3 \n"
+ "jg 1b \n"
+ : "+r"(src_argb), // %0
+ "+r"(src_stepx_x4), // %1
+ "+r"(dst_argb), // %2
+ "+rm"(dst_width), // %3
+ "+r"(src_stepx_x12), // %4
+ "+r"(row1) // %5
+ :: "memory", "cc", NACL_R14
+ "xmm0", "xmm1", "xmm2", "xmm3"
+ );
+}
+
+void ScaleARGBCols_SSE2(uint8* dst_argb, const uint8* src_argb,
+ int dst_width, int x, int dx) {
+ intptr_t x0 = 0, x1 = 0;
+ asm volatile (
+ "movd %5,%%xmm2 \n"
+ "movd %6,%%xmm3 \n"
+ "pshufd $0x0,%%xmm2,%%xmm2 \n"
+ "pshufd $0x11,%%xmm3,%%xmm0 \n"
+ "paddd %%xmm0,%%xmm2 \n"
+ "paddd %%xmm3,%%xmm3 \n"
+ "pshufd $0x5,%%xmm3,%%xmm0 \n"
+ "paddd %%xmm0,%%xmm2 \n"
+ "paddd %%xmm3,%%xmm3 \n"
+ "pshufd $0x0,%%xmm3,%%xmm3 \n"
+ "pextrw $0x1,%%xmm2,%k0 \n"
+ "pextrw $0x3,%%xmm2,%k1 \n"
+ "cmp $0x0,%4 \n"
+ "jl 99f \n"
+ "sub $0x4,%4 \n"
+ "jl 49f \n"
+
+ LABELALIGN
+ "40: \n"
+ MEMOPREG(movd,0x00,3,0,4,xmm0) // movd (%3,%0,4),%%xmm0
+ MEMOPREG(movd,0x00,3,1,4,xmm1) // movd (%3,%1,4),%%xmm1
+ "pextrw $0x5,%%xmm2,%k0 \n"
+ "pextrw $0x7,%%xmm2,%k1 \n"
+ "paddd %%xmm3,%%xmm2 \n"
+ "punpckldq %%xmm1,%%xmm0 \n"
+ MEMOPREG(movd,0x00,3,0,4,xmm1) // movd (%3,%0,4),%%xmm1
+ MEMOPREG(movd,0x00,3,1,4,xmm4) // movd (%3,%1,4),%%xmm4
+ "pextrw $0x1,%%xmm2,%k0 \n"
+ "pextrw $0x3,%%xmm2,%k1 \n"
+ "punpckldq %%xmm4,%%xmm1 \n"
+ "punpcklqdq %%xmm1,%%xmm0 \n"
+ "movdqu %%xmm0," MEMACCESS(2) " \n"
+ "lea " MEMLEA(0x10,2) ",%2 \n"
+ "sub $0x4,%4 \n"
+ "jge 40b \n"
+
+ "49: \n"
+ "test $0x2,%4 \n"
+ "je 29f \n"
+ MEMOPREG(movd,0x00,3,0,4,xmm0) // movd (%3,%0,4),%%xmm0
+ MEMOPREG(movd,0x00,3,1,4,xmm1) // movd (%3,%1,4),%%xmm1
+ "pextrw $0x5,%%xmm2,%k0 \n"
+ "punpckldq %%xmm1,%%xmm0 \n"
+ "movq %%xmm0," MEMACCESS(2) " \n"
+ "lea " MEMLEA(0x8,2) ",%2 \n"
+ "29: \n"
+ "test $0x1,%4 \n"
+ "je 99f \n"
+ MEMOPREG(movd,0x00,3,0,4,xmm0) // movd (%3,%0,4),%%xmm0
+ "movd %%xmm0," MEMACCESS(2) " \n"
+ "99: \n"
+ : "+a"(x0), // %0
+ "+d"(x1), // %1
+ "+r"(dst_argb), // %2
+ "+r"(src_argb), // %3
+ "+r"(dst_width) // %4
+ : "rm"(x), // %5
+ "rm"(dx) // %6
+ : "memory", "cc", NACL_R14
+ "xmm0", "xmm1", "xmm2", "xmm3", "xmm4"
+ );
+}
+
+// Reads 4 pixels, duplicates them and writes 8 pixels.
+// Alignment requirement: src_argb 16 byte aligned, dst_argb 16 byte aligned.
+void ScaleARGBColsUp2_SSE2(uint8* dst_argb, const uint8* src_argb,
+ int dst_width, int x, int dx) {
+ asm volatile (
+ LABELALIGN
+ "1: \n"
+ "movdqu " MEMACCESS(1) ",%%xmm0 \n"
+ "lea " MEMLEA(0x10,1) ",%1 \n"
+ "movdqa %%xmm0,%%xmm1 \n"
+ "punpckldq %%xmm0,%%xmm0 \n"
+ "punpckhdq %%xmm1,%%xmm1 \n"
+ "movdqu %%xmm0," MEMACCESS(0) " \n"
+ "movdqu %%xmm1," MEMACCESS2(0x10,0) " \n"
+ "lea " MEMLEA(0x20,0) ",%0 \n"
+ "sub $0x8,%2 \n"
+ "jg 1b \n"
+
+ : "+r"(dst_argb), // %0
+ "+r"(src_argb), // %1
+ "+r"(dst_width) // %2
+ :: "memory", "cc", NACL_R14
+ "xmm0", "xmm1"
+ );
+}
+
+// Shuffle table for arranging 2 pixels into pairs for pmaddubsw
+static uvec8 kShuffleColARGB = {
+ 0u, 4u, 1u, 5u, 2u, 6u, 3u, 7u, // bbggrraa 1st pixel
+ 8u, 12u, 9u, 13u, 10u, 14u, 11u, 15u // bbggrraa 2nd pixel
+};
+
+// Shuffle table for duplicating 2 fractions into 8 bytes each
+static uvec8 kShuffleFractions = {
+ 0u, 0u, 0u, 0u, 0u, 0u, 0u, 0u, 4u, 4u, 4u, 4u, 4u, 4u, 4u, 4u,
+};
+
+// Bilinear row filtering combines 4x2 -> 4x1. SSSE3 version
+void ScaleARGBFilterCols_SSSE3(uint8* dst_argb, const uint8* src_argb,
+ int dst_width, int x, int dx) {
+ intptr_t x0 = 0, x1 = 0;
+ asm volatile (
+ "movdqa %0,%%xmm4 \n"
+ "movdqa %1,%%xmm5 \n"
+ :
+ : "m"(kShuffleColARGB), // %0
+ "m"(kShuffleFractions) // %1
+ );
+
+ asm volatile (
+ "movd %5,%%xmm2 \n"
+ "movd %6,%%xmm3 \n"
+ "pcmpeqb %%xmm6,%%xmm6 \n"
+ "psrlw $0x9,%%xmm6 \n"
+ "pextrw $0x1,%%xmm2,%k3 \n"
+ "sub $0x2,%2 \n"
+ "jl 29f \n"
+ "movdqa %%xmm2,%%xmm0 \n"
+ "paddd %%xmm3,%%xmm0 \n"
+ "punpckldq %%xmm0,%%xmm2 \n"
+ "punpckldq %%xmm3,%%xmm3 \n"
+ "paddd %%xmm3,%%xmm3 \n"
+ "pextrw $0x3,%%xmm2,%k4 \n"
+
+ LABELALIGN
+ "2: \n"
+ "movdqa %%xmm2,%%xmm1 \n"
+ "paddd %%xmm3,%%xmm2 \n"
+ MEMOPREG(movq,0x00,1,3,4,xmm0) // movq (%1,%3,4),%%xmm0
+ "psrlw $0x9,%%xmm1 \n"
+ MEMOPREG(movhps,0x00,1,4,4,xmm0) // movhps (%1,%4,4),%%xmm0
+ "pshufb %%xmm5,%%xmm1 \n"
+ "pshufb %%xmm4,%%xmm0 \n"
+ "pxor %%xmm6,%%xmm1 \n"
+ "pmaddubsw %%xmm1,%%xmm0 \n"
+ "psrlw $0x7,%%xmm0 \n"
+ "pextrw $0x1,%%xmm2,%k3 \n"
+ "pextrw $0x3,%%xmm2,%k4 \n"
+ "packuswb %%xmm0,%%xmm0 \n"
+ "movq %%xmm0," MEMACCESS(0) " \n"
+ "lea " MEMLEA(0x8,0) ",%0 \n"
+ "sub $0x2,%2 \n"
+ "jge 2b \n"
+
+ LABELALIGN
+ "29: \n"
+ "add $0x1,%2 \n"
+ "jl 99f \n"
+ "psrlw $0x9,%%xmm2 \n"
+ MEMOPREG(movq,0x00,1,3,4,xmm0) // movq (%1,%3,4),%%xmm0
+ "pshufb %%xmm5,%%xmm2 \n"
+ "pshufb %%xmm4,%%xmm0 \n"
+ "pxor %%xmm6,%%xmm2 \n"
+ "pmaddubsw %%xmm2,%%xmm0 \n"
+ "psrlw $0x7,%%xmm0 \n"
+ "packuswb %%xmm0,%%xmm0 \n"
+ "movd %%xmm0," MEMACCESS(0) " \n"
+
+ LABELALIGN
+ "99: \n"
+ : "+r"(dst_argb), // %0
+ "+r"(src_argb), // %1
+ "+rm"(dst_width), // %2
+ "+r"(x0), // %3
+ "+r"(x1) // %4
+ : "rm"(x), // %5
+ "rm"(dx) // %6
+ : "memory", "cc", NACL_R14
+ "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6"
+ );
+}
+
+// Divide num by div and return as 16.16 fixed point result.
+int FixedDiv_X86(int num, int div) {
+ asm volatile (
+ "cdq \n"
+ "shld $0x10,%%eax,%%edx \n"
+ "shl $0x10,%%eax \n"
+ "idiv %1 \n"
+ "mov %0, %%eax \n"
+ : "+a"(num) // %0
+ : "c"(div) // %1
+ : "memory", "cc", "edx"
+ );
+ return num;
+}
+
+// Divide num - 1 by div - 1 and return as 16.16 fixed point result.
+int FixedDiv1_X86(int num, int div) {
+ asm volatile (
+ "cdq \n"
+ "shld $0x10,%%eax,%%edx \n"
+ "shl $0x10,%%eax \n"
+ "sub $0x10001,%%eax \n"
+ "sbb $0x0,%%edx \n"
+ "sub $0x1,%1 \n"
+ "idiv %1 \n"
+ "mov %0, %%eax \n"
+ : "+a"(num) // %0
+ : "c"(div) // %1
+ : "memory", "cc", "edx"
+ );
+ return num;
+}
+
+#endif // defined(__x86_64__) || defined(__i386__)
+
+#ifdef __cplusplus
+} // extern "C"
+} // namespace libyuv
+#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-30 18:19:47 +0000