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Issue 2035573002: ARGBExtractAlpha 16 pixels at a time for ARM (Closed) Base URL: https://chromium.googlesource.com/libyuv/libyuv@master
Patch Set: fix lint warning Created 4 years, 6 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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1295 "+r"(width) // %2 1295 "+r"(width) // %2
1296 : 1296 :
1297 : "cc", "memory", "q0", "q1", "q2", "q12", "q13" 1297 : "cc", "memory", "q0", "q1", "q2", "q12", "q13"
1298 ); 1298 );
1299 } 1299 }
1300 1300
1301 void ARGBExtractAlphaRow_NEON(const uint8* src_argb, uint8* dst_a, int width) { 1301 void ARGBExtractAlphaRow_NEON(const uint8* src_argb, uint8* dst_a, int width) {
1302 asm volatile ( 1302 asm volatile (
1303 "1: \n" 1303 "1: \n"
1304 MEMACCESS(0) 1304 MEMACCESS(0)
1305 "vld4.8 {d0, d1, d2, d3}, [%0]! \n" // load row 8 pixels 1305 "vld4.8 {d0, d2, d4, d6}, [%0]! \n" // load 8 ARGB pixels
1306 "subs %2, %2, #8 \n" // 8 processed per loop 1306 "vld4.8 {d1, d3, d5, d7}, [%0]! \n" // load next 8 ARGB pixels
1307 "subs %2, %2, #16 \n" // 16 processed per loop
1307 MEMACCESS(1) 1308 MEMACCESS(1)
1308 "vst1.8 {d3}, [%1]! \n" // store 8 A's. 1309 "vst1.8 {q3}, [%1]! \n" // store 16 A's.
1309 "bgt 1b \n" 1310 "bgt 1b \n"
1310 : "+r"(src_argb), // %0 1311 : "+r"(src_argb), // %0
1311 "+r"(dst_a), // %1 1312 "+r"(dst_a), // %1
1312 "+r"(width) // %2 1313 "+r"(width) // %2
1313 : 1314 :
1314 : "cc", "memory", "d0", "d1", "d2", "d3" // Clobber List 1315 : "cc", "memory", "q0", "q1", "q2", "q3" // Clobber List
1315 ); 1316 );
1316 } 1317 }
1317 1318
1318 void ARGBToYJRow_NEON(const uint8* src_argb, uint8* dst_y, int width) { 1319 void ARGBToYJRow_NEON(const uint8* src_argb, uint8* dst_y, int width) {
1319 asm volatile ( 1320 asm volatile (
1320 "vmov.u8 d24, #15 \n" // B * 0.11400 coefficient 1321 "vmov.u8 d24, #15 \n" // B * 0.11400 coefficient
1321 "vmov.u8 d25, #75 \n" // G * 0.58700 coefficient 1322 "vmov.u8 d25, #75 \n" // G * 0.58700 coefficient
1322 "vmov.u8 d26, #38 \n" // R * 0.29900 coefficient 1323 "vmov.u8 d26, #38 \n" // R * 0.29900 coefficient
1323 "1: \n" 1324 "1: \n"
1324 MEMACCESS(0) 1325 MEMACCESS(0)
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2836 "r"(6) // %5 2837 "r"(6) // %5
2837 : "cc", "memory", "q0", "q1" // Clobber List 2838 : "cc", "memory", "q0", "q1" // Clobber List
2838 ); 2839 );
2839 } 2840 }
2840 #endif // defined(__ARM_NEON__) && !defined(__aarch64__) 2841 #endif // defined(__ARM_NEON__) && !defined(__aarch64__)
2841 2842
2842 #ifdef __cplusplus 2843 #ifdef __cplusplus
2843 } // extern "C" 2844 } // extern "C"
2844 } // namespace libyuv 2845 } // namespace libyuv
2845 #endif 2846 #endif
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