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Side by Side Diff: source/libvpx/vp8/common/mips/dspr2/idctllm_dspr2.c

Issue 11555023: libvpx: Add VP9 decoder. (Closed) Base URL: svn://chrome-svn/chrome/trunk/deps/third_party/libvpx/
Patch Set: Created 8 years ago
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1 /* 1 /*
2 * Copyright (c) 2012 The WebM project authors. All Rights Reserved. 2 * Copyright (c) 2012 The WebM 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
11 #include "vpx_rtcd.h" 11 #include "vp8_rtcd.h"
12 12
13 #if HAVE_DSPR2 13 #if HAVE_DSPR2
14 #define CROP_WIDTH 256 14 #define CROP_WIDTH 256
15 15
16 /****************************************************************************** 16 /******************************************************************************
17 * Notes: 17 * Notes:
18 * 18 *
19 * This implementation makes use of 16 bit fixed point version of two multiply 19 * This implementation makes use of 16 bit fixed point version of two multiply
20 * constants: 20 * constants:
21 * 1. sqrt(2) * cos (pi/8) 21 * 1. sqrt(2) * cos (pi/8)
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360 "sh %[a1], 416(%[mb_dqcoeff]) \n\t" 360 "sh %[a1], 416(%[mb_dqcoeff]) \n\t"
361 "sh %[a1], 448(%[mb_dqcoeff]) \n\t" 361 "sh %[a1], 448(%[mb_dqcoeff]) \n\t"
362 "sh %[a1], 480(%[mb_dqcoeff]) \n\t" 362 "sh %[a1], 480(%[mb_dqcoeff]) \n\t"
363 363
364 : 364 :
365 : [a1] "r" (a1), [mb_dqcoeff] "r" (mb_dqcoeff) 365 : [a1] "r" (a1), [mb_dqcoeff] "r" (mb_dqcoeff)
366 ); 366 );
367 } 367 }
368 368
369 #endif 369 #endif
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