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136 lines
3.4 KiB
C
136 lines
3.4 KiB
C
/*
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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 program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, 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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