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Issue 1397673002: port ARGB to 565 dithering SSE2 code to GCC. (Closed) Base URL: https://chromium.googlesource.com/libyuv/libyuv@master
Patch Set: remove comment about 8 pixels which is wrong Created 5 years, 2 months ago
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1 /* 1 /*
2 * Copyright 2011 The LibYuv Project Authors. All rights reserved. 2 * Copyright 2011 The LibYuv Project Authors. All rights reserved.
3 * 3 *
4 * Use of this source code is governed by a BSD-style license 4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source 5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found 6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may 7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree. 8 * be found in the AUTHORS file in the root of the source tree.
9 */ 9 */
10 10
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826 por xmm2, xmm3 // 12 bytes from 3 for 2 826 por xmm2, xmm3 // 12 bytes from 3 for 2
827 movdqu [edx + 16], xmm1 // store 1 827 movdqu [edx + 16], xmm1 // store 1
828 movdqu [edx + 32], xmm2 // store 2 828 movdqu [edx + 32], xmm2 // store 2
829 lea edx, [edx + 48] 829 lea edx, [edx + 48]
830 sub ecx, 16 830 sub ecx, 16
831 jg convertloop 831 jg convertloop
832 ret 832 ret
833 } 833 }
834 } 834 }
835 835
836 // 4 pixels
837 __declspec(naked) 836 __declspec(naked)
838 void ARGBToRGB565Row_SSE2(const uint8* src_argb, uint8* dst_rgb, int pix) { 837 void ARGBToRGB565Row_SSE2(const uint8* src_argb, uint8* dst_rgb, int pix) {
839 __asm { 838 __asm {
840 mov eax, [esp + 4] // src_argb 839 mov eax, [esp + 4] // src_argb
841 mov edx, [esp + 8] // dst_rgb 840 mov edx, [esp + 8] // dst_rgb
842 mov ecx, [esp + 12] // pix 841 mov ecx, [esp + 12] // pix
843 pcmpeqb xmm3, xmm3 // generate mask 0x0000001f 842 pcmpeqb xmm3, xmm3 // generate mask 0x0000001f
844 psrld xmm3, 27 843 psrld xmm3, 27
845 pcmpeqb xmm4, xmm4 // generate mask 0x000007e0 844 pcmpeqb xmm4, xmm4 // generate mask 0x000007e0
846 psrld xmm4, 26 845 psrld xmm4, 26
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864 packssdw xmm0, xmm0 863 packssdw xmm0, xmm0
865 lea eax, [eax + 16] 864 lea eax, [eax + 16]
866 movq qword ptr [edx], xmm0 // store 4 pixels of RGB565 865 movq qword ptr [edx], xmm0 // store 4 pixels of RGB565
867 lea edx, [edx + 8] 866 lea edx, [edx + 8]
868 sub ecx, 4 867 sub ecx, 4
869 jg convertloop 868 jg convertloop
870 ret 869 ret
871 } 870 }
872 } 871 }
873 872
874 // 8 pixels
875 __declspec(naked) 873 __declspec(naked)
876 void ARGBToRGB565DitherRow_SSE2(const uint8* src_argb, uint8* dst_rgb, 874 void ARGBToRGB565DitherRow_SSE2(const uint8* src_argb, uint8* dst_rgb,
877 const uint32 dither4, int pix) { 875 const uint32 dither4, int pix) {
878 __asm { 876 __asm {
879 877
880 mov eax, [esp + 4] // src_argb 878 mov eax, [esp + 4] // src_argb
881 mov edx, [esp + 8] // dst_rgb 879 mov edx, [esp + 8] // dst_rgb
882 movd xmm6, [esp + 12] // dither4 880 movd xmm6, [esp + 12] // dither4
883 mov ecx, [esp + 16] // pix 881 mov ecx, [esp + 16] // pix
884 punpcklbw xmm6, xmm6 // make dither 16 bytes 882 punpcklbw xmm6, xmm6 // make dither 16 bytes
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6638 } 6636 }
6639 #endif // HAS_ARGBLUMACOLORTABLEROW_SSSE3 6637 #endif // HAS_ARGBLUMACOLORTABLEROW_SSSE3
6640 6638
6641 #endif // defined(_M_X64) 6639 #endif // defined(_M_X64)
6642 #endif // !defined(LIBYUV_DISABLE_X86) && (defined(_M_IX86) || defined(_M_X64)) 6640 #endif // !defined(LIBYUV_DISABLE_X86) && (defined(_M_IX86) || defined(_M_X64))
6643 6641
6644 #ifdef __cplusplus 6642 #ifdef __cplusplus
6645 } // extern "C" 6643 } // extern "C"
6646 } // namespace libyuv 6644 } // namespace libyuv
6647 #endif 6645 #endif
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