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135 lines
3.5 KiB
135 lines
3.5 KiB
/* |
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* Alpha optimized DSP utils |
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* Copyright (c) 2002 Falk Hueffner <falk@debian.org> |
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* |
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* This library is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2 of the License, or (at your option) any later version. |
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* |
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* This library is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with this library; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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/* This file is intended to be #included with proper definitions of |
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* PIXOPNAME, BTYPE, AVG2, AVG4 and STORE. */ |
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static void PIXOPNAME(_pixels_axp)(BTYPE *block, const UINT8 *pixels, |
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int line_size, int h) |
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{ |
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if ((size_t) pixels & 0x7) { |
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do { |
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STORE(uldq(pixels), block); |
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pixels += line_size; |
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block += line_size; |
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} while (--h); |
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} else { |
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do { |
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STORE(ldq(pixels), block); |
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pixels += line_size; |
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block += line_size; |
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} while (--h); |
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} |
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} |
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static void PIXOPNAME(_pixels_x2_axp)(BTYPE *block, const UINT8 *pixels, |
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int line_size, int h) |
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{ |
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if ((size_t) pixels & 0x7) { |
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do { |
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UINT64 pix1, pix2; |
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pix1 = uldq(pixels); |
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pix2 = pix1 >> 8 | ((UINT64) pixels[8] << 56); |
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STORE(AVG2(pix1, pix2), block); |
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pixels += line_size; |
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block += line_size; |
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} while (--h); |
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} else { |
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do { |
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UINT64 pix1, pix2; |
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pix1 = ldq(pixels); |
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pix2 = pix1 >> 8 | ((UINT64) pixels[8] << 56); |
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STORE(AVG2(pix1, pix2), block); |
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pixels += line_size; |
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block += line_size; |
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} while (--h); |
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} |
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} |
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static void PIXOPNAME(_pixels_y2_axp)(BTYPE *block, const UINT8 *pixels, |
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int line_size, int h) |
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{ |
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if ((size_t) pixels & 0x7) { |
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UINT64 pix = uldq(pixels); |
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do { |
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UINT64 next_pix; |
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pixels += line_size; |
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next_pix = uldq(pixels); |
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STORE(AVG2(pix, next_pix), block); |
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block += line_size; |
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pix = next_pix; |
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} while (--h); |
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} else { |
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UINT64 pix = ldq(pixels); |
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do { |
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UINT64 next_pix; |
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pixels += line_size; |
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next_pix = ldq(pixels); |
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STORE(AVG2(pix, next_pix), block); |
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block += line_size; |
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pix = next_pix; |
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} while (--h); |
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} |
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} |
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/* This could be further sped up by recycling AVG4 intermediate |
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results from the previous loop pass. */ |
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static void PIXOPNAME(_pixels_xy2_axp)(BTYPE *block, const UINT8 *pixels, |
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int line_size, int h) |
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{ |
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if ((size_t) pixels & 0x7) { |
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UINT64 pix1 = uldq(pixels); |
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UINT64 pix2 = pix1 >> 8 | ((UINT64) pixels[8] << 56); |
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do { |
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UINT64 next_pix1, next_pix2; |
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pixels += line_size; |
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next_pix1 = uldq(pixels); |
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next_pix2 = next_pix1 >> 8 | ((UINT64) pixels[8] << 56); |
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STORE(AVG4(pix1, pix2, next_pix1, next_pix2), block); |
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block += line_size; |
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pix1 = next_pix1; |
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pix2 = next_pix2; |
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} while (--h); |
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} else { |
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UINT64 pix1 = ldq(pixels); |
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UINT64 pix2 = pix1 >> 8 | ((UINT64) pixels[8] << 56); |
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do { |
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UINT64 next_pix1, next_pix2; |
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pixels += line_size; |
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next_pix1 = ldq(pixels); |
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next_pix2 = next_pix1 >> 8 | ((UINT64) pixels[8] << 56); |
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STORE(AVG4(pix1, pix2, next_pix1, next_pix2), block); |
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block += line_size; |
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pix1 = next_pix1; |
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pix2 = next_pix2; |
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} while (--h); |
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} |
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}
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