ref: a736bf6bfb66d08848b114344731c4e04ac5066d
dir: /third_party/libyuv/source/rotate_win.cc/
/*
* 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/rotate_row.h"
#ifdef __cplusplus
namespace libyuv {
extern "C" {
#endif
// This module is for Visual C x86.
#if !defined(LIBYUV_DISABLE_X86) && defined(_M_IX86) && \
defined(_MSC_VER) && !defined(__clang__)
__declspec(naked)
void TransposeWx8_SSSE3(const uint8* src, int src_stride,
uint8* dst, int dst_stride, int width) {
__asm {
push edi
push esi
push ebp
mov eax, [esp + 12 + 4] // src
mov edi, [esp + 12 + 8] // src_stride
mov edx, [esp + 12 + 12] // dst
mov esi, [esp + 12 + 16] // dst_stride
mov ecx, [esp + 12 + 20] // width
// Read in the data from the source pointer.
// First round of bit swap.
align 4
convertloop:
movq xmm0, qword ptr [eax]
lea ebp, [eax + 8]
movq xmm1, qword ptr [eax + edi]
lea eax, [eax + 2 * edi]
punpcklbw xmm0, xmm1
movq xmm2, qword ptr [eax]
movdqa xmm1, xmm0
palignr xmm1, xmm1, 8
movq xmm3, qword ptr [eax + edi]
lea eax, [eax + 2 * edi]
punpcklbw xmm2, xmm3
movdqa xmm3, xmm2
movq xmm4, qword ptr [eax]
palignr xmm3, xmm3, 8
movq xmm5, qword ptr [eax + edi]
punpcklbw xmm4, xmm5
lea eax, [eax + 2 * edi]
movdqa xmm5, xmm4
movq xmm6, qword ptr [eax]
palignr xmm5, xmm5, 8
movq xmm7, qword ptr [eax + edi]
punpcklbw xmm6, xmm7
mov eax, ebp
movdqa xmm7, xmm6
palignr xmm7, xmm7, 8
// Second round of bit swap.
punpcklwd xmm0, xmm2
punpcklwd xmm1, xmm3
movdqa xmm2, xmm0
movdqa xmm3, xmm1
palignr xmm2, xmm2, 8
palignr xmm3, xmm3, 8
punpcklwd xmm4, xmm6
punpcklwd xmm5, xmm7
movdqa xmm6, xmm4
movdqa xmm7, xmm5
palignr xmm6, xmm6, 8
palignr xmm7, xmm7, 8
// Third round of bit swap.
// Write to the destination pointer.
punpckldq xmm0, xmm4
movq qword ptr [edx], xmm0
movdqa xmm4, xmm0
palignr xmm4, xmm4, 8
movq qword ptr [edx + esi], xmm4
lea edx, [edx + 2 * esi]
punpckldq xmm2, xmm6
movdqa xmm6, xmm2
palignr xmm6, xmm6, 8
movq qword ptr [edx], xmm2
punpckldq xmm1, xmm5
movq qword ptr [edx + esi], xmm6
lea edx, [edx + 2 * esi]
movdqa xmm5, xmm1
movq qword ptr [edx], xmm1
palignr xmm5, xmm5, 8
punpckldq xmm3, xmm7
movq qword ptr [edx + esi], xmm5
lea edx, [edx + 2 * esi]
movq qword ptr [edx], xmm3
movdqa xmm7, xmm3
palignr xmm7, xmm7, 8
sub ecx, 8
movq qword ptr [edx + esi], xmm7
lea edx, [edx + 2 * esi]
jg convertloop
pop ebp
pop esi
pop edi
ret
}
}
__declspec(naked)
void TransposeUVWx8_SSE2(const uint8* src, int src_stride,
uint8* dst_a, int dst_stride_a,
uint8* dst_b, int dst_stride_b,
int w) {
__asm {
push ebx
push esi
push edi
push ebp
mov eax, [esp + 16 + 4] // src
mov edi, [esp + 16 + 8] // src_stride
mov edx, [esp + 16 + 12] // dst_a
mov esi, [esp + 16 + 16] // dst_stride_a
mov ebx, [esp + 16 + 20] // dst_b
mov ebp, [esp + 16 + 24] // dst_stride_b
mov ecx, esp
sub esp, 4 + 16
and esp, ~15
mov [esp + 16], ecx
mov ecx, [ecx + 16 + 28] // w
align 4
convertloop:
// Read in the data from the source pointer.
// First round of bit swap.
movdqu xmm0, [eax]
movdqu xmm1, [eax + edi]
lea eax, [eax + 2 * edi]
movdqa xmm7, xmm0 // use xmm7 as temp register.
punpcklbw xmm0, xmm1
punpckhbw xmm7, xmm1
movdqa xmm1, xmm7
movdqu xmm2, [eax]
movdqu xmm3, [eax + edi]
lea eax, [eax + 2 * edi]
movdqa xmm7, xmm2
punpcklbw xmm2, xmm3
punpckhbw xmm7, xmm3
movdqa xmm3, xmm7
movdqu xmm4, [eax]
movdqu xmm5, [eax + edi]
lea eax, [eax + 2 * edi]
movdqa xmm7, xmm4
punpcklbw xmm4, xmm5
punpckhbw xmm7, xmm5
movdqa xmm5, xmm7
movdqu xmm6, [eax]
movdqu xmm7, [eax + edi]
lea eax, [eax + 2 * edi]
movdqu [esp], xmm5 // backup xmm5
neg edi
movdqa xmm5, xmm6 // use xmm5 as temp register.
punpcklbw xmm6, xmm7
punpckhbw xmm5, xmm7
movdqa xmm7, xmm5
lea eax, [eax + 8 * edi + 16]
neg edi
// Second round of bit swap.
movdqa xmm5, xmm0
punpcklwd xmm0, xmm2
punpckhwd xmm5, xmm2
movdqa xmm2, xmm5
movdqa xmm5, xmm1
punpcklwd xmm1, xmm3
punpckhwd xmm5, xmm3
movdqa xmm3, xmm5
movdqa xmm5, xmm4
punpcklwd xmm4, xmm6
punpckhwd xmm5, xmm6
movdqa xmm6, xmm5
movdqu xmm5, [esp] // restore xmm5
movdqu [esp], xmm6 // backup xmm6
movdqa xmm6, xmm5 // use xmm6 as temp register.
punpcklwd xmm5, xmm7
punpckhwd xmm6, xmm7
movdqa xmm7, xmm6
// Third round of bit swap.
// Write to the destination pointer.
movdqa xmm6, xmm0
punpckldq xmm0, xmm4
punpckhdq xmm6, xmm4
movdqa xmm4, xmm6
movdqu xmm6, [esp] // restore xmm6
movlpd qword ptr [edx], xmm0
movhpd qword ptr [ebx], xmm0
movlpd qword ptr [edx + esi], xmm4
lea edx, [edx + 2 * esi]
movhpd qword ptr [ebx + ebp], xmm4
lea ebx, [ebx + 2 * ebp]
movdqa xmm0, xmm2 // use xmm0 as the temp register.
punpckldq xmm2, xmm6
movlpd qword ptr [edx], xmm2
movhpd qword ptr [ebx], xmm2
punpckhdq xmm0, xmm6
movlpd qword ptr [edx + esi], xmm0
lea edx, [edx + 2 * esi]
movhpd qword ptr [ebx + ebp], xmm0
lea ebx, [ebx + 2 * ebp]
movdqa xmm0, xmm1 // use xmm0 as the temp register.
punpckldq xmm1, xmm5
movlpd qword ptr [edx], xmm1
movhpd qword ptr [ebx], xmm1
punpckhdq xmm0, xmm5
movlpd qword ptr [edx + esi], xmm0
lea edx, [edx + 2 * esi]
movhpd qword ptr [ebx + ebp], xmm0
lea ebx, [ebx + 2 * ebp]
movdqa xmm0, xmm3 // use xmm0 as the temp register.
punpckldq xmm3, xmm7
movlpd qword ptr [edx], xmm3
movhpd qword ptr [ebx], xmm3
punpckhdq xmm0, xmm7
sub ecx, 8
movlpd qword ptr [edx + esi], xmm0
lea edx, [edx + 2 * esi]
movhpd qword ptr [ebx + ebp], xmm0
lea ebx, [ebx + 2 * ebp]
jg convertloop
mov esp, [esp + 16]
pop ebp
pop edi
pop esi
pop ebx
ret
}
}
#endif // !defined(LIBYUV_DISABLE_X86) && defined(_M_IX86)
#ifdef __cplusplus
} // extern "C"
} // namespace libyuv
#endif