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-rw-r--r--media/libvpx/libvpx/third_party/libyuv/source/scale_gcc.cc1374
1 files changed, 1374 insertions, 0 deletions
diff --git a/media/libvpx/libvpx/third_party/libyuv/source/scale_gcc.cc b/media/libvpx/libvpx/third_party/libyuv/source/scale_gcc.cc
new file mode 100644
index 0000000000..312236d2df
--- /dev/null
+++ b/media/libvpx/libvpx/third_party/libyuv/source/scale_gcc.cc
@@ -0,0 +1,1374 @@
+/*
+ * 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"
+#include "libyuv/scale_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__) && !defined(_MSC_VER)))
+
+// Offsets for source bytes 0 to 9
+static const 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 const 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 const 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 const 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 const 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 const 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 const 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 const 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 const 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 const vec16 kRound34 = {2, 2, 2, 2, 2, 2, 2, 2};
+
+static const uvec8 kShuf38a = {0, 3, 6, 8, 11, 14, 128, 128,
+ 128, 128, 128, 128, 128, 128, 128, 128};
+
+static const 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 const 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 const 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 const 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 const 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 const 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 const 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 const 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_SSSE3(const uint8_t* src_ptr,
+ ptrdiff_t src_stride,
+ uint8_t* dst_ptr,
+ int dst_width) {
+ (void)src_stride;
+ asm volatile(
+ // 16 pixel loop.
+ LABELALIGN
+ "1: \n"
+ "movdqu (%0),%%xmm0 \n"
+ "movdqu 0x10(%0),%%xmm1 \n"
+ "lea 0x20(%0),%0 \n"
+ "psrlw $0x8,%%xmm0 \n"
+ "psrlw $0x8,%%xmm1 \n"
+ "packuswb %%xmm1,%%xmm0 \n"
+ "movdqu %%xmm0,(%1) \n"
+ "lea 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_SSSE3(const uint8_t* src_ptr,
+ ptrdiff_t src_stride,
+ uint8_t* dst_ptr,
+ int dst_width) {
+ (void)src_stride;
+ asm volatile(
+ "pcmpeqb %%xmm4,%%xmm4 \n"
+ "psrlw $0xf,%%xmm4 \n"
+ "packuswb %%xmm4,%%xmm4 \n"
+ "pxor %%xmm5,%%xmm5 \n"
+
+ LABELALIGN
+ "1: \n"
+ "movdqu (%0),%%xmm0 \n"
+ "movdqu 0x10(%0),%%xmm1 \n"
+ "lea 0x20(%0),%0 \n"
+ "pmaddubsw %%xmm4,%%xmm0 \n"
+ "pmaddubsw %%xmm4,%%xmm1 \n"
+ "pavgw %%xmm5,%%xmm0 \n"
+ "pavgw %%xmm5,%%xmm1 \n"
+ "packuswb %%xmm1,%%xmm0 \n"
+ "movdqu %%xmm0,(%1) \n"
+ "lea 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", "xmm4", "xmm5");
+}
+
+void ScaleRowDown2Box_SSSE3(const uint8_t* src_ptr,
+ ptrdiff_t src_stride,
+ uint8_t* dst_ptr,
+ int dst_width) {
+ asm volatile(
+ "pcmpeqb %%xmm4,%%xmm4 \n"
+ "psrlw $0xf,%%xmm4 \n"
+ "packuswb %%xmm4,%%xmm4 \n"
+ "pxor %%xmm5,%%xmm5 \n"
+
+ LABELALIGN
+ "1: \n"
+ "movdqu (%0),%%xmm0 \n"
+ "movdqu 0x10(%0),%%xmm1 \n"
+ "movdqu 0x00(%0,%3,1),%%xmm2 \n"
+ "movdqu 0x10(%0,%3,1),%%xmm3 \n"
+ "lea 0x20(%0),%0 \n"
+ "pmaddubsw %%xmm4,%%xmm0 \n"
+ "pmaddubsw %%xmm4,%%xmm1 \n"
+ "pmaddubsw %%xmm4,%%xmm2 \n"
+ "pmaddubsw %%xmm4,%%xmm3 \n"
+ "paddw %%xmm2,%%xmm0 \n"
+ "paddw %%xmm3,%%xmm1 \n"
+ "psrlw $0x1,%%xmm0 \n"
+ "psrlw $0x1,%%xmm1 \n"
+ "pavgw %%xmm5,%%xmm0 \n"
+ "pavgw %%xmm5,%%xmm1 \n"
+ "packuswb %%xmm1,%%xmm0 \n"
+ "movdqu %%xmm0,(%1) \n"
+ "lea 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", "xmm0", "xmm1", "xmm2", "xmm3", "xmm5");
+}
+
+#ifdef HAS_SCALEROWDOWN2_AVX2
+void ScaleRowDown2_AVX2(const uint8_t* src_ptr,
+ ptrdiff_t src_stride,
+ uint8_t* dst_ptr,
+ int dst_width) {
+ (void)src_stride;
+ asm volatile(
+
+ LABELALIGN
+ "1: \n"
+ "vmovdqu (%0),%%ymm0 \n"
+ "vmovdqu 0x20(%0),%%ymm1 \n"
+ "lea 0x40(%0),%0 \n"
+ "vpsrlw $0x8,%%ymm0,%%ymm0 \n"
+ "vpsrlw $0x8,%%ymm1,%%ymm1 \n"
+ "vpackuswb %%ymm1,%%ymm0,%%ymm0 \n"
+ "vpermq $0xd8,%%ymm0,%%ymm0 \n"
+ "vmovdqu %%ymm0,(%1) \n"
+ "lea 0x20(%1),%1 \n"
+ "sub $0x20,%2 \n"
+ "jg 1b \n"
+ "vzeroupper \n"
+ : "+r"(src_ptr), // %0
+ "+r"(dst_ptr), // %1
+ "+r"(dst_width) // %2
+ ::"memory",
+ "cc", "xmm0", "xmm1");
+}
+
+void ScaleRowDown2Linear_AVX2(const uint8_t* src_ptr,
+ ptrdiff_t src_stride,
+ uint8_t* dst_ptr,
+ int dst_width) {
+ (void)src_stride;
+ asm volatile(
+ "vpcmpeqb %%ymm4,%%ymm4,%%ymm4 \n"
+ "vpsrlw $0xf,%%ymm4,%%ymm4 \n"
+ "vpackuswb %%ymm4,%%ymm4,%%ymm4 \n"
+ "vpxor %%ymm5,%%ymm5,%%ymm5 \n"
+
+ LABELALIGN
+ "1: \n"
+ "vmovdqu (%0),%%ymm0 \n"
+ "vmovdqu 0x20(%0),%%ymm1 \n"
+ "lea 0x40(%0),%0 \n"
+ "vpmaddubsw %%ymm4,%%ymm0,%%ymm0 \n"
+ "vpmaddubsw %%ymm4,%%ymm1,%%ymm1 \n"
+ "vpavgw %%ymm5,%%ymm0,%%ymm0 \n"
+ "vpavgw %%ymm5,%%ymm1,%%ymm1 \n"
+ "vpackuswb %%ymm1,%%ymm0,%%ymm0 \n"
+ "vpermq $0xd8,%%ymm0,%%ymm0 \n"
+ "vmovdqu %%ymm0,(%1) \n"
+ "lea 0x20(%1),%1 \n"
+ "sub $0x20,%2 \n"
+ "jg 1b \n"
+ "vzeroupper \n"
+ : "+r"(src_ptr), // %0
+ "+r"(dst_ptr), // %1
+ "+r"(dst_width) // %2
+ ::"memory",
+ "cc", "xmm0", "xmm1", "xmm4", "xmm5");
+}
+
+void ScaleRowDown2Box_AVX2(const uint8_t* src_ptr,
+ ptrdiff_t src_stride,
+ uint8_t* dst_ptr,
+ int dst_width) {
+ asm volatile(
+ "vpcmpeqb %%ymm4,%%ymm4,%%ymm4 \n"
+ "vpsrlw $0xf,%%ymm4,%%ymm4 \n"
+ "vpackuswb %%ymm4,%%ymm4,%%ymm4 \n"
+ "vpxor %%ymm5,%%ymm5,%%ymm5 \n"
+
+ LABELALIGN
+ "1: \n"
+ "vmovdqu (%0),%%ymm0 \n"
+ "vmovdqu 0x20(%0),%%ymm1 \n"
+ "vmovdqu 0x00(%0,%3,1),%%ymm2 \n"
+ "vmovdqu 0x20(%0,%3,1),%%ymm3 \n"
+ "lea 0x40(%0),%0 \n"
+ "vpmaddubsw %%ymm4,%%ymm0,%%ymm0 \n"
+ "vpmaddubsw %%ymm4,%%ymm1,%%ymm1 \n"
+ "vpmaddubsw %%ymm4,%%ymm2,%%ymm2 \n"
+ "vpmaddubsw %%ymm4,%%ymm3,%%ymm3 \n"
+ "vpaddw %%ymm2,%%ymm0,%%ymm0 \n"
+ "vpaddw %%ymm3,%%ymm1,%%ymm1 \n"
+ "vpsrlw $0x1,%%ymm0,%%ymm0 \n"
+ "vpsrlw $0x1,%%ymm1,%%ymm1 \n"
+ "vpavgw %%ymm5,%%ymm0,%%ymm0 \n"
+ "vpavgw %%ymm5,%%ymm1,%%ymm1 \n"
+ "vpackuswb %%ymm1,%%ymm0,%%ymm0 \n"
+ "vpermq $0xd8,%%ymm0,%%ymm0 \n"
+ "vmovdqu %%ymm0,(%1) \n"
+ "lea 0x20(%1),%1 \n"
+ "sub $0x20,%2 \n"
+ "jg 1b \n"
+ "vzeroupper \n"
+ : "+r"(src_ptr), // %0
+ "+r"(dst_ptr), // %1
+ "+r"(dst_width) // %2
+ : "r"((intptr_t)(src_stride)) // %3
+ : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm5");
+}
+#endif // HAS_SCALEROWDOWN2_AVX2
+
+void ScaleRowDown4_SSSE3(const uint8_t* src_ptr,
+ ptrdiff_t src_stride,
+ uint8_t* dst_ptr,
+ int dst_width) {
+ (void)src_stride;
+ asm volatile(
+ "pcmpeqb %%xmm5,%%xmm5 \n"
+ "psrld $0x18,%%xmm5 \n"
+ "pslld $0x10,%%xmm5 \n"
+
+ LABELALIGN
+ "1: \n"
+ "movdqu (%0),%%xmm0 \n"
+ "movdqu 0x10(%0),%%xmm1 \n"
+ "lea 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,(%1) \n"
+ "lea 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_SSSE3(const uint8_t* src_ptr,
+ ptrdiff_t src_stride,
+ uint8_t* dst_ptr,
+ int dst_width) {
+ intptr_t stridex3;
+ asm volatile(
+ "pcmpeqb %%xmm4,%%xmm4 \n"
+ "psrlw $0xf,%%xmm4 \n"
+ "movdqa %%xmm4,%%xmm5 \n"
+ "packuswb %%xmm4,%%xmm4 \n"
+ "psllw $0x3,%%xmm5 \n"
+ "lea 0x00(%4,%4,2),%3 \n"
+
+ LABELALIGN
+ "1: \n"
+ "movdqu (%0),%%xmm0 \n"
+ "movdqu 0x10(%0),%%xmm1 \n"
+ "movdqu 0x00(%0,%4,1),%%xmm2 \n"
+ "movdqu 0x10(%0,%4,1),%%xmm3 \n"
+ "pmaddubsw %%xmm4,%%xmm0 \n"
+ "pmaddubsw %%xmm4,%%xmm1 \n"
+ "pmaddubsw %%xmm4,%%xmm2 \n"
+ "pmaddubsw %%xmm4,%%xmm3 \n"
+ "paddw %%xmm2,%%xmm0 \n"
+ "paddw %%xmm3,%%xmm1 \n"
+ "movdqu 0x00(%0,%4,2),%%xmm2 \n"
+ "movdqu 0x10(%0,%4,2),%%xmm3 \n"
+ "pmaddubsw %%xmm4,%%xmm2 \n"
+ "pmaddubsw %%xmm4,%%xmm3 \n"
+ "paddw %%xmm2,%%xmm0 \n"
+ "paddw %%xmm3,%%xmm1 \n"
+ "movdqu 0x00(%0,%3,1),%%xmm2 \n"
+ "movdqu 0x10(%0,%3,1),%%xmm3 \n"
+ "lea 0x20(%0),%0 \n"
+ "pmaddubsw %%xmm4,%%xmm2 \n"
+ "pmaddubsw %%xmm4,%%xmm3 \n"
+ "paddw %%xmm2,%%xmm0 \n"
+ "paddw %%xmm3,%%xmm1 \n"
+ "phaddw %%xmm1,%%xmm0 \n"
+ "paddw %%xmm5,%%xmm0 \n"
+ "psrlw $0x4,%%xmm0 \n"
+ "packuswb %%xmm0,%%xmm0 \n"
+ "movq %%xmm0,(%1) \n"
+ "lea 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", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5");
+}
+
+#ifdef HAS_SCALEROWDOWN4_AVX2
+void ScaleRowDown4_AVX2(const uint8_t* src_ptr,
+ ptrdiff_t src_stride,
+ uint8_t* dst_ptr,
+ int dst_width) {
+ (void)src_stride;
+ asm volatile(
+ "vpcmpeqb %%ymm5,%%ymm5,%%ymm5 \n"
+ "vpsrld $0x18,%%ymm5,%%ymm5 \n"
+ "vpslld $0x10,%%ymm5,%%ymm5 \n"
+
+ LABELALIGN
+ "1: \n"
+ "vmovdqu (%0),%%ymm0 \n"
+ "vmovdqu 0x20(%0),%%ymm1 \n"
+ "lea 0x40(%0),%0 \n"
+ "vpand %%ymm5,%%ymm0,%%ymm0 \n"
+ "vpand %%ymm5,%%ymm1,%%ymm1 \n"
+ "vpackuswb %%ymm1,%%ymm0,%%ymm0 \n"
+ "vpermq $0xd8,%%ymm0,%%ymm0 \n"
+ "vpsrlw $0x8,%%ymm0,%%ymm0 \n"
+ "vpackuswb %%ymm0,%%ymm0,%%ymm0 \n"
+ "vpermq $0xd8,%%ymm0,%%ymm0 \n"
+ "vmovdqu %%xmm0,(%1) \n"
+ "lea 0x10(%1),%1 \n"
+ "sub $0x10,%2 \n"
+ "jg 1b \n"
+ "vzeroupper \n"
+ : "+r"(src_ptr), // %0
+ "+r"(dst_ptr), // %1
+ "+r"(dst_width) // %2
+ ::"memory",
+ "cc", "xmm0", "xmm1", "xmm5");
+}
+
+void ScaleRowDown4Box_AVX2(const uint8_t* src_ptr,
+ ptrdiff_t src_stride,
+ uint8_t* dst_ptr,
+ int dst_width) {
+ asm volatile(
+ "vpcmpeqb %%ymm4,%%ymm4,%%ymm4 \n"
+ "vpsrlw $0xf,%%ymm4,%%ymm4 \n"
+ "vpsllw $0x3,%%ymm4,%%ymm5 \n"
+ "vpackuswb %%ymm4,%%ymm4,%%ymm4 \n"
+
+ LABELALIGN
+ "1: \n"
+ "vmovdqu (%0),%%ymm0 \n"
+ "vmovdqu 0x20(%0),%%ymm1 \n"
+ "vmovdqu 0x00(%0,%3,1),%%ymm2 \n"
+ "vmovdqu 0x20(%0,%3,1),%%ymm3 \n"
+ "vpmaddubsw %%ymm4,%%ymm0,%%ymm0 \n"
+ "vpmaddubsw %%ymm4,%%ymm1,%%ymm1 \n"
+ "vpmaddubsw %%ymm4,%%ymm2,%%ymm2 \n"
+ "vpmaddubsw %%ymm4,%%ymm3,%%ymm3 \n"
+ "vpaddw %%ymm2,%%ymm0,%%ymm0 \n"
+ "vpaddw %%ymm3,%%ymm1,%%ymm1 \n"
+ "vmovdqu 0x00(%0,%3,2),%%ymm2 \n"
+ "vmovdqu 0x20(%0,%3,2),%%ymm3 \n"
+ "vpmaddubsw %%ymm4,%%ymm2,%%ymm2 \n"
+ "vpmaddubsw %%ymm4,%%ymm3,%%ymm3 \n"
+ "vpaddw %%ymm2,%%ymm0,%%ymm0 \n"
+ "vpaddw %%ymm3,%%ymm1,%%ymm1 \n"
+ "vmovdqu 0x00(%0,%4,1),%%ymm2 \n"
+ "vmovdqu 0x20(%0,%4,1),%%ymm3 \n"
+ "lea 0x40(%0),%0 \n"
+ "vpmaddubsw %%ymm4,%%ymm2,%%ymm2 \n"
+ "vpmaddubsw %%ymm4,%%ymm3,%%ymm3 \n"
+ "vpaddw %%ymm2,%%ymm0,%%ymm0 \n"
+ "vpaddw %%ymm3,%%ymm1,%%ymm1 \n"
+ "vphaddw %%ymm1,%%ymm0,%%ymm0 \n"
+ "vpermq $0xd8,%%ymm0,%%ymm0 \n"
+ "vpaddw %%ymm5,%%ymm0,%%ymm0 \n"
+ "vpsrlw $0x4,%%ymm0,%%ymm0 \n"
+ "vpackuswb %%ymm0,%%ymm0,%%ymm0 \n"
+ "vpermq $0xd8,%%ymm0,%%ymm0 \n"
+ "vmovdqu %%xmm0,(%1) \n"
+ "lea 0x10(%1),%1 \n"
+ "sub $0x10,%2 \n"
+ "jg 1b \n"
+ "vzeroupper \n"
+ : "+r"(src_ptr), // %0
+ "+r"(dst_ptr), // %1
+ "+r"(dst_width) // %2
+ : "r"((intptr_t)(src_stride)), // %3
+ "r"((intptr_t)(src_stride * 3)) // %4
+ : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5");
+}
+#endif // HAS_SCALEROWDOWN4_AVX2
+
+void ScaleRowDown34_SSSE3(const uint8_t* src_ptr,
+ ptrdiff_t src_stride,
+ uint8_t* dst_ptr,
+ int dst_width) {
+ (void)src_stride;
+ 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 (%0),%%xmm0 \n"
+ "movdqu 0x10(%0),%%xmm2 \n"
+ "lea 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,(%1) \n"
+ "movq %%xmm1,0x8(%1) \n"
+ "movq %%xmm2,0x10(%1) \n"
+ "lea 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_t* src_ptr,
+ ptrdiff_t src_stride,
+ uint8_t* 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 (%0),%%xmm6 \n"
+ "movdqu 0x00(%0,%3,1),%%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,(%1) \n"
+ "movdqu 0x8(%0),%%xmm6 \n"
+ "movdqu 0x8(%0,%3,1),%%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 %%xmm6,0x8(%1) \n"
+ "movdqu 0x10(%0),%%xmm6 \n"
+ "movdqu 0x10(%0,%3,1),%%xmm7 \n"
+ "lea 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 %%xmm6,0x10(%1) \n"
+ "lea 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", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6",
+ "xmm7");
+}
+
+void ScaleRowDown34_0_Box_SSSE3(const uint8_t* src_ptr,
+ ptrdiff_t src_stride,
+ uint8_t* 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 (%0),%%xmm6 \n"
+ "movdqu 0x00(%0,%3,1),%%xmm7 \n"
+ "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,(%1) \n"
+ "movdqu 0x8(%0),%%xmm6 \n"
+ "movdqu 0x8(%0,%3,1),%%xmm7 \n"
+ "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 %%xmm6,0x8(%1) \n"
+ "movdqu 0x10(%0),%%xmm6 \n"
+ "movdqu 0x10(%0,%3,1),%%xmm7 \n"
+ "lea 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 %%xmm6,0x10(%1) \n"
+ "lea 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", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6",
+ "xmm7");
+}
+
+void ScaleRowDown38_SSSE3(const uint8_t* src_ptr,
+ ptrdiff_t src_stride,
+ uint8_t* dst_ptr,
+ int dst_width) {
+ (void)src_stride;
+ asm volatile(
+ "movdqa %3,%%xmm4 \n"
+ "movdqa %4,%%xmm5 \n"
+
+ LABELALIGN
+ "1: \n"
+ "movdqu (%0),%%xmm0 \n"
+ "movdqu 0x10(%0),%%xmm1 \n"
+ "lea 0x20(%0),%0 \n"
+ "pshufb %%xmm4,%%xmm0 \n"
+ "pshufb %%xmm5,%%xmm1 \n"
+ "paddusb %%xmm1,%%xmm0 \n"
+ "movq %%xmm0,(%1) \n"
+ "movhlps %%xmm0,%%xmm1 \n"
+ "movd %%xmm1,0x8(%1) \n"
+ "lea 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_t* src_ptr,
+ ptrdiff_t src_stride,
+ uint8_t* 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 (%0),%%xmm0 \n"
+ "movdqu 0x00(%0,%3,1),%%xmm1 \n"
+ "lea 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,(%1) \n"
+ "psrlq $0x10,%%xmm1 \n"
+ "movd %%xmm1,0x2(%1) \n"
+ "lea 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", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6");
+}
+
+void ScaleRowDown38_3_Box_SSSE3(const uint8_t* src_ptr,
+ ptrdiff_t src_stride,
+ uint8_t* 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 (%0),%%xmm0 \n"
+ "movdqu 0x00(%0,%3,1),%%xmm6 \n"
+ "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"
+ "movdqu 0x00(%0,%3,2),%%xmm6 \n"
+ "lea 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,(%1) \n"
+ "psrlq $0x10,%%xmm6 \n"
+ "movd %%xmm6,0x2(%1) \n"
+ "lea 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", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6",
+ "xmm7");
+}
+
+// Reads 16xN bytes and produces 16 shorts at a time.
+void ScaleAddRow_SSE2(const uint8_t* src_ptr,
+ uint16_t* dst_ptr,
+ int src_width) {
+ asm volatile(
+
+ "pxor %%xmm5,%%xmm5 \n"
+
+ // 16 pixel loop.
+ LABELALIGN
+ "1: \n"
+ "movdqu (%0),%%xmm3 \n"
+ "lea 0x10(%0),%0 \n" // src_ptr += 16
+ "movdqu (%1),%%xmm0 \n"
+ "movdqu 0x10(%1),%%xmm1 \n"
+ "movdqa %%xmm3,%%xmm2 \n"
+ "punpcklbw %%xmm5,%%xmm2 \n"
+ "punpckhbw %%xmm5,%%xmm3 \n"
+ "paddusw %%xmm2,%%xmm0 \n"
+ "paddusw %%xmm3,%%xmm1 \n"
+ "movdqu %%xmm0,(%1) \n"
+ "movdqu %%xmm1,0x10(%1) \n"
+ "lea 0x20(%1),%1 \n"
+ "sub $0x10,%2 \n"
+ "jg 1b \n"
+ : "+r"(src_ptr), // %0
+ "+r"(dst_ptr), // %1
+ "+r"(src_width) // %2
+ :
+ : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm5");
+}
+
+#ifdef HAS_SCALEADDROW_AVX2
+// Reads 32 bytes and accumulates to 32 shorts at a time.
+void ScaleAddRow_AVX2(const uint8_t* src_ptr,
+ uint16_t* dst_ptr,
+ int src_width) {
+ asm volatile(
+
+ "vpxor %%ymm5,%%ymm5,%%ymm5 \n"
+
+ LABELALIGN
+ "1: \n"
+ "vmovdqu (%0),%%ymm3 \n"
+ "lea 0x20(%0),%0 \n" // src_ptr += 32
+ "vpermq $0xd8,%%ymm3,%%ymm3 \n"
+ "vpunpcklbw %%ymm5,%%ymm3,%%ymm2 \n"
+ "vpunpckhbw %%ymm5,%%ymm3,%%ymm3 \n"
+ "vpaddusw (%1),%%ymm2,%%ymm0 \n"
+ "vpaddusw 0x20(%1),%%ymm3,%%ymm1 \n"
+ "vmovdqu %%ymm0,(%1) \n"
+ "vmovdqu %%ymm1,0x20(%1) \n"
+ "lea 0x40(%1),%1 \n"
+ "sub $0x20,%2 \n"
+ "jg 1b \n"
+ "vzeroupper \n"
+ : "+r"(src_ptr), // %0
+ "+r"(dst_ptr), // %1
+ "+r"(src_width) // %2
+ :
+ : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm5");
+}
+#endif // HAS_SCALEADDROW_AVX2
+
+// Constant for making pixels signed to avoid pmaddubsw
+// saturation.
+static const uvec8 kFsub80 = {0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80};
+
+// Constant for making pixels unsigned and adding .5 for rounding.
+static const uvec16 kFadd40 = {0x4040, 0x4040, 0x4040, 0x4040,
+ 0x4040, 0x4040, 0x4040, 0x4040};
+
+// Bilinear column filtering. SSSE3 version.
+void ScaleFilterCols_SSSE3(uint8_t* dst_ptr,
+ const uint8_t* src_ptr,
+ int dst_width,
+ int x,
+ int dx) {
+ intptr_t x0, x1, temp_pixel;
+ 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" // 0x007f007f
+ "pcmpeqb %%xmm7,%%xmm7 \n"
+ "psrlw $15,%%xmm7 \n" // 0x00010001
+
+ "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"
+ "movzwl 0x00(%1,%3,1),%k2 \n"
+ "movd %k2,%%xmm0 \n"
+ "psrlw $0x9,%%xmm1 \n"
+ "movzwl 0x00(%1,%4,1),%k2 \n"
+ "movd %k2,%%xmm4 \n"
+ "pshufb %%xmm5,%%xmm1 \n"
+ "punpcklwd %%xmm4,%%xmm0 \n"
+ "psubb %8,%%xmm0 \n" // make pixels signed.
+ "pxor %%xmm6,%%xmm1 \n" // 128 - f = (f ^ 127 ) +
+ // 1
+ "paddusb %%xmm7,%%xmm1 \n"
+ "pmaddubsw %%xmm0,%%xmm1 \n"
+ "pextrw $0x1,%%xmm2,%k3 \n"
+ "pextrw $0x3,%%xmm2,%k4 \n"
+ "paddw %9,%%xmm1 \n" // make pixels unsigned.
+ "psrlw $0x7,%%xmm1 \n"
+ "packuswb %%xmm1,%%xmm1 \n"
+ "movd %%xmm1,%k2 \n"
+ "mov %w2,(%0) \n"
+ "lea 0x2(%0),%0 \n"
+ "subl $0x2,%5 \n"
+ "jge 2b \n"
+
+ LABELALIGN
+ "29: \n"
+ "addl $0x1,%5 \n"
+ "jl 99f \n"
+ "movzwl 0x00(%1,%3,1),%k2 \n"
+ "movd %k2,%%xmm0 \n"
+ "psrlw $0x9,%%xmm2 \n"
+ "pshufb %%xmm5,%%xmm2 \n"
+ "psubb %8,%%xmm0 \n" // make pixels signed.
+ "pxor %%xmm6,%%xmm2 \n"
+ "paddusb %%xmm7,%%xmm2 \n"
+ "pmaddubsw %%xmm0,%%xmm2 \n"
+ "paddw %9,%%xmm2 \n" // make pixels unsigned.
+ "psrlw $0x7,%%xmm2 \n"
+ "packuswb %%xmm2,%%xmm2 \n"
+ "movd %%xmm2,%k2 \n"
+ "mov %b2,(%0) \n"
+ "99: \n"
+ : "+r"(dst_ptr), // %0
+ "+r"(src_ptr), // %1
+ "=&a"(temp_pixel), // %2
+ "=&r"(x0), // %3
+ "=&r"(x1), // %4
+#if defined(__x86_64__)
+ "+rm"(dst_width) // %5
+#else
+ "+m"(dst_width) // %5
+#endif
+ : "rm"(x), // %6
+ "rm"(dx), // %7
+#if defined(__x86_64__)
+ "x"(kFsub80), // %8
+ "x"(kFadd40) // %9
+#else
+ "m"(kFsub80), // %8
+ "m"(kFadd40) // %9
+#endif
+ : "memory", "cc", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6",
+ "xmm7");
+}
+
+// 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_t* dst_ptr,
+ const uint8_t* src_ptr,
+ int dst_width,
+ int x,
+ int dx) {
+ (void)x;
+ (void)dx;
+ asm volatile(
+
+ LABELALIGN
+ "1: \n"
+ "movdqu (%1),%%xmm0 \n"
+ "lea 0x10(%1),%1 \n"
+ "movdqa %%xmm0,%%xmm1 \n"
+ "punpcklbw %%xmm0,%%xmm0 \n"
+ "punpckhbw %%xmm1,%%xmm1 \n"
+ "movdqu %%xmm0,(%0) \n"
+ "movdqu %%xmm1,0x10(%0) \n"
+ "lea 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_t* src_argb,
+ ptrdiff_t src_stride,
+ uint8_t* dst_argb,
+ int dst_width) {
+ (void)src_stride;
+ asm volatile(
+
+ LABELALIGN
+ "1: \n"
+ "movdqu (%0),%%xmm0 \n"
+ "movdqu 0x10(%0),%%xmm1 \n"
+ "lea 0x20(%0),%0 \n"
+ "shufps $0xdd,%%xmm1,%%xmm0 \n"
+ "movdqu %%xmm0,(%1) \n"
+ "lea 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_t* src_argb,
+ ptrdiff_t src_stride,
+ uint8_t* dst_argb,
+ int dst_width) {
+ (void)src_stride;
+ asm volatile(
+
+ LABELALIGN
+ "1: \n"
+ "movdqu (%0),%%xmm0 \n"
+ "movdqu 0x10(%0),%%xmm1 \n"
+ "lea 0x20(%0),%0 \n"
+ "movdqa %%xmm0,%%xmm2 \n"
+ "shufps $0x88,%%xmm1,%%xmm0 \n"
+ "shufps $0xdd,%%xmm1,%%xmm2 \n"
+ "pavgb %%xmm2,%%xmm0 \n"
+ "movdqu %%xmm0,(%1) \n"
+ "lea 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_t* src_argb,
+ ptrdiff_t src_stride,
+ uint8_t* dst_argb,
+ int dst_width) {
+ asm volatile(
+
+ LABELALIGN
+ "1: \n"
+ "movdqu (%0),%%xmm0 \n"
+ "movdqu 0x10(%0),%%xmm1 \n"
+ "movdqu 0x00(%0,%3,1),%%xmm2 \n"
+ "movdqu 0x10(%0,%3,1),%%xmm3 \n"
+ "lea 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,(%1) \n"
+ "lea 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", "xmm0", "xmm1", "xmm2", "xmm3");
+}
+
+// Reads 4 pixels at a time.
+// Alignment requirement: dst_argb 16 byte aligned.
+void ScaleARGBRowDownEven_SSE2(const uint8_t* src_argb,
+ ptrdiff_t src_stride,
+ int src_stepx,
+ uint8_t* dst_argb,
+ int dst_width) {
+ intptr_t src_stepx_x4 = (intptr_t)(src_stepx);
+ intptr_t src_stepx_x12;
+ (void)src_stride;
+ asm volatile(
+ "lea 0x00(,%1,4),%1 \n"
+ "lea 0x00(%1,%1,2),%4 \n"
+
+ LABELALIGN
+ "1: \n"
+ "movd (%0),%%xmm0 \n"
+ "movd 0x00(%0,%1,1),%%xmm1 \n"
+ "punpckldq %%xmm1,%%xmm0 \n"
+ "movd 0x00(%0,%1,2),%%xmm2 \n"
+ "movd 0x00(%0,%4,1),%%xmm3 \n"
+ "lea 0x00(%0,%1,4),%0 \n"
+ "punpckldq %%xmm3,%%xmm2 \n"
+ "punpcklqdq %%xmm2,%%xmm0 \n"
+ "movdqu %%xmm0,(%2) \n"
+ "lea 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", "xmm0", "xmm1", "xmm2", "xmm3");
+}
+
+// Blends four 2x2 to 4x1.
+// Alignment requirement: dst_argb 16 byte aligned.
+void ScaleARGBRowDownEvenBox_SSE2(const uint8_t* src_argb,
+ ptrdiff_t src_stride,
+ int src_stepx,
+ uint8_t* dst_argb,
+ int dst_width) {
+ intptr_t src_stepx_x4 = (intptr_t)(src_stepx);
+ intptr_t src_stepx_x12;
+ intptr_t row1 = (intptr_t)(src_stride);
+ asm volatile(
+ "lea 0x00(,%1,4),%1 \n"
+ "lea 0x00(%1,%1,2),%4 \n"
+ "lea 0x00(%0,%5,1),%5 \n"
+
+ LABELALIGN
+ "1: \n"
+ "movq (%0),%%xmm0 \n"
+ "movhps 0x00(%0,%1,1),%%xmm0 \n"
+ "movq 0x00(%0,%1,2),%%xmm1 \n"
+ "movhps 0x00(%0,%4,1),%%xmm1 \n"
+ "lea 0x00(%0,%1,4),%0 \n"
+ "movq (%5),%%xmm2 \n"
+ "movhps 0x00(%5,%1,1),%%xmm2 \n"
+ "movq 0x00(%5,%1,2),%%xmm3 \n"
+ "movhps 0x00(%5,%4,1),%%xmm3 \n"
+ "lea 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,(%2) \n"
+ "lea 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", "xmm0", "xmm1", "xmm2", "xmm3");
+}
+
+void ScaleARGBCols_SSE2(uint8_t* dst_argb,
+ const uint8_t* src_argb,
+ int dst_width,
+ int x,
+ int dx) {
+ intptr_t x0, x1;
+ 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"
+ "movd 0x00(%3,%0,4),%%xmm0 \n"
+ "movd 0x00(%3,%1,4),%%xmm1 \n"
+ "pextrw $0x5,%%xmm2,%k0 \n"
+ "pextrw $0x7,%%xmm2,%k1 \n"
+ "paddd %%xmm3,%%xmm2 \n"
+ "punpckldq %%xmm1,%%xmm0 \n"
+ "movd 0x00(%3,%0,4),%%xmm1 \n"
+ "movd 0x00(%3,%1,4),%%xmm4 \n"
+ "pextrw $0x1,%%xmm2,%k0 \n"
+ "pextrw $0x3,%%xmm2,%k1 \n"
+ "punpckldq %%xmm4,%%xmm1 \n"
+ "punpcklqdq %%xmm1,%%xmm0 \n"
+ "movdqu %%xmm0,(%2) \n"
+ "lea 0x10(%2),%2 \n"
+ "sub $0x4,%4 \n"
+ "jge 40b \n"
+
+ "49: \n"
+ "test $0x2,%4 \n"
+ "je 29f \n"
+ "movd 0x00(%3,%0,4),%%xmm0 \n"
+ "movd 0x00(%3,%1,4),%%xmm1 \n"
+ "pextrw $0x5,%%xmm2,%k0 \n"
+ "punpckldq %%xmm1,%%xmm0 \n"
+ "movq %%xmm0,(%2) \n"
+ "lea 0x8(%2),%2 \n"
+ "29: \n"
+ "test $0x1,%4 \n"
+ "je 99f \n"
+ "movd 0x00(%3,%0,4),%%xmm0 \n"
+ "movd %%xmm0,(%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", "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_t* dst_argb,
+ const uint8_t* src_argb,
+ int dst_width,
+ int x,
+ int dx) {
+ (void)x;
+ (void)dx;
+ asm volatile(
+
+ LABELALIGN
+ "1: \n"
+ "movdqu (%1),%%xmm0 \n"
+ "lea 0x10(%1),%1 \n"
+ "movdqa %%xmm0,%%xmm1 \n"
+ "punpckldq %%xmm0,%%xmm0 \n"
+ "punpckhdq %%xmm1,%%xmm1 \n"
+ "movdqu %%xmm0,(%0) \n"
+ "movdqu %%xmm1,0x10(%0) \n"
+ "lea 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", "xmm0", "xmm1");
+}
+
+// Shuffle table for arranging 2 pixels into pairs for pmaddubsw
+static const 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 const 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_t* dst_argb,
+ const uint8_t* src_argb,
+ int dst_width,
+ int x,
+ int dx) {
+ intptr_t x0, x1;
+ 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"
+ "movq 0x00(%1,%3,4),%%xmm0 \n"
+ "psrlw $0x9,%%xmm1 \n"
+ "movhps 0x00(%1,%4,4),%%xmm0 \n"
+ "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,(%0) \n"
+ "lea 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"
+ "movq 0x00(%1,%3,4),%%xmm0 \n"
+ "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,(%0) \n"
+
+ LABELALIGN "99: \n" // clang-format error.
+
+ : "+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", "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 2.39.1) at 2024-06-01 10:02:32 +0000