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0790622e42
This updates our in-tree copy of libvpx to match the 1.2.0 git tag. All but one of the patches we were carrying are in this upstream version. Our update.sh script should copy the new files needed but will not remove the old ones for you. Runtime cpu detection was rewritten upstream. We now generate per-platform headers for this and include the correct one from a vpx_rtcd.h wrapper like we were already doing for vpx_config.h This revision includes improved assembly optimizations and should be faster on all platforms. Includes work by Jan Gerber and Ralph Giles. --HG-- rename : media/libvpx/vp8/common/arm/neon/save_neon_reg.asm => media/libvpx/vp8/common/arm/neon/save_reg_neon.asm rename : media/libvpx/vp8/common/arm/armv6/vp8_mse16x16_armv6.asm => media/libvpx/vp8/encoder/arm/armv6/vp8_mse16x16_armv6.asm rename : media/libvpx/vp8/common/arm/neon/vp8_mse16x16_neon.asm => media/libvpx/vp8/encoder/arm/neon/vp8_mse16x16_neon.asm rename : media/libvpx/vp8/encoder/x86/x86_csystemdependent.c => media/libvpx/vp8/encoder/x86/vp8_enc_stubs_mmx.c rename : media/libvpx/vpx_config_arm-linux-gcc.c => media/libvpx/vpx_config_armv7-android-gcc.c rename : media/libvpx/vpx_config_arm-linux-gcc.h => media/libvpx/vpx_config_armv7-android-gcc.h
136 lines
3.7 KiB
C
136 lines
3.7 KiB
C
/*
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* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "quant_common.h"
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static const int dc_qlookup[QINDEX_RANGE] =
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{
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4, 5, 6, 7, 8, 9, 10, 10, 11, 12, 13, 14, 15, 16, 17, 17,
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18, 19, 20, 20, 21, 21, 22, 22, 23, 23, 24, 25, 25, 26, 27, 28,
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29, 30, 31, 32, 33, 34, 35, 36, 37, 37, 38, 39, 40, 41, 42, 43,
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44, 45, 46, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58,
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59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74,
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75, 76, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89,
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91, 93, 95, 96, 98, 100, 101, 102, 104, 106, 108, 110, 112, 114, 116, 118,
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122, 124, 126, 128, 130, 132, 134, 136, 138, 140, 143, 145, 148, 151, 154, 157,
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};
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static const int ac_qlookup[QINDEX_RANGE] =
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{
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4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
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20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35,
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36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51,
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52, 53, 54, 55, 56, 57, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76,
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78, 80, 82, 84, 86, 88, 90, 92, 94, 96, 98, 100, 102, 104, 106, 108,
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110, 112, 114, 116, 119, 122, 125, 128, 131, 134, 137, 140, 143, 146, 149, 152,
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155, 158, 161, 164, 167, 170, 173, 177, 181, 185, 189, 193, 197, 201, 205, 209,
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213, 217, 221, 225, 229, 234, 239, 245, 249, 254, 259, 264, 269, 274, 279, 284,
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};
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int vp8_dc_quant(int QIndex, int Delta)
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{
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int retval;
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QIndex = QIndex + Delta;
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if (QIndex > 127)
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QIndex = 127;
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else if (QIndex < 0)
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QIndex = 0;
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retval = dc_qlookup[ QIndex ];
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return retval;
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}
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int vp8_dc2quant(int QIndex, int Delta)
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{
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int retval;
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QIndex = QIndex + Delta;
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if (QIndex > 127)
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QIndex = 127;
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else if (QIndex < 0)
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QIndex = 0;
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retval = dc_qlookup[ QIndex ] * 2;
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return retval;
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}
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int vp8_dc_uv_quant(int QIndex, int Delta)
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{
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int retval;
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QIndex = QIndex + Delta;
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if (QIndex > 127)
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QIndex = 127;
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else if (QIndex < 0)
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QIndex = 0;
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retval = dc_qlookup[ QIndex ];
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if (retval > 132)
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retval = 132;
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return retval;
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}
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int vp8_ac_yquant(int QIndex)
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{
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int retval;
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if (QIndex > 127)
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QIndex = 127;
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else if (QIndex < 0)
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QIndex = 0;
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retval = ac_qlookup[ QIndex ];
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return retval;
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}
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int vp8_ac2quant(int QIndex, int Delta)
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{
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int retval;
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QIndex = QIndex + Delta;
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if (QIndex > 127)
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QIndex = 127;
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else if (QIndex < 0)
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QIndex = 0;
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/* For all x in [0..284], x*155/100 is bitwise equal to (x*101581) >> 16.
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* The smallest precision for that is '(x*6349) >> 12' but 16 is a good
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* word size. */
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retval = (ac_qlookup[ QIndex ] * 101581) >> 16;
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if (retval < 8)
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retval = 8;
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return retval;
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}
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int vp8_ac_uv_quant(int QIndex, int Delta)
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{
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int retval;
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QIndex = QIndex + Delta;
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if (QIndex > 127)
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QIndex = 127;
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else if (QIndex < 0)
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QIndex = 0;
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retval = ac_qlookup[ QIndex ];
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return retval;
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}
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