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132 lines
3.8 KiB
132 lines
3.8 KiB
/* |
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* MMI optimized DSP utils |
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* Copyright (c) 2000, 2001 Fabrice Bellard. |
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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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* MMI optimization by Leon van Stuivenberg <leonvs@iae.nl> |
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*/ |
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#include "../dsputil.h" |
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#include "mmi.h" |
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/* the provided 'as' in binutils 2.9EE doesn't support |
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the EE's mips3 instructions properly */ |
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#define AS_BUGGY |
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static void clear_blocks_mmi(DCTELEM * blocks) |
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{ |
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int i; |
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for (i = 0; i < 6; i++) { |
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asm volatile( |
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"sq $0, 0(%0) \n\t" |
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"sq $0, 16(%0) \n\t" |
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"sq $0, 32(%0) \n\t" |
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"sq $0, 48(%0) \n\t" |
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"sq $0, 64(%0) \n\t" |
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"sq $0, 80(%0) \n\t" |
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"sq $0, 96(%0) \n\t" |
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"sq $0, 112(%0) \n\t" :: "r" (blocks) : "memory" ); |
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blocks += 64; |
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} |
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} |
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static void get_pixels_mmi(DCTELEM *block, const UINT8 *pixels, int line_size) |
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{ |
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int i; |
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for(i=0;i<8;i++) { |
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#ifdef AS_BUGGY |
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ld3(5, 0, 8); |
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asm volatile( |
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"add %1, %1, %2 \n\t" |
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"pextlb $8, $0, $8 \n\t" |
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"sq $8, 0(%0) \n\t" :: "r" (block), "r" (pixels), "r" (line_size) : "$8", "memory" ); |
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#else |
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asm volatile( |
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"ld $8, 0(%1) \n\t" |
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"add %1, %1, %2 \n\t" |
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"pextlb $8, $0, $8 \n\t" |
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"sq $8, 0(%0) \n\t" :: "r" (block), "r" (pixels), "r" (line_size) : "$8", "memory" ); |
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#endif |
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block += 8; |
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} |
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} |
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static void put_pixels8_mmi(uint8_t *block, const uint8_t *pixels, int line_size, int h) |
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{ |
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int i; |
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for(i=0; i<h; i++) { |
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#ifdef AS_BUGGY |
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ldr3(5, 0, 8); |
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ldl3(5, 7, 8); |
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asm volatile ( "add $5, $5, $6 \n\t" ); |
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sd3(8, 0, 4); |
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asm volatile ( "add $4, $4, $6 \n\t" ); |
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#else |
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asm volatile( |
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"ldr $8, 0(%1) \n\t" |
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"ldl $8, 7(%1) \n\t" |
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"add %1, %1, %2 \n\t" |
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"sd $8, 0(%0) \n\t" |
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"add %0, %0, %2 \n\t" :: "r" (block), "r" (pixels), "r" (line_size) : "$8", "memory" ); |
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#endif |
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} |
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} |
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static void put_pixels16_mmi(uint8_t *block, const uint8_t *pixels, int line_size, int h) |
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{ |
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int i; |
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for(i=0; i<h; i++) { |
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#ifdef AS_BUGGY |
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ldr3(5, 0, 8); |
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ldl3(5, 7, 8); |
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ldr3(5, 8, 9); |
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ldl3(5, 15, 9); |
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asm volatile ( "add $5, $5, $6 \n\t" ); |
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pcpyld($9, $8, $8); |
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sq($8, 0, $4); |
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asm volatile ( "add $4, $4, $6 \n\t" ); |
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#else |
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asm volatile ( |
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"ldr $8, 0(%1) \n\t" |
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"ldl $8, 7(%1) \n\t" |
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"ldr $9, 8(%1) \n\t" |
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"ldl $9, 15(%1) \n\t" |
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"add %1, %1, %2 \n\t" |
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"pcpyld $8, $9, $8 \n\t" |
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"sq $8, 0(%0) \n\t" |
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"add %0, %0, %2 \n\t" :: "r" (block), "r" (pixels), "r" (line_size) : "$8", "$9", "memory" ); |
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#endif |
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} |
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} |
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void dsputil_init_mmi(void) |
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{ |
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clear_blocks = clear_blocks_mmi; |
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put_pixels_tab[1][0] = put_pixels8_mmi; |
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put_no_rnd_pixels_tab[1][0] = put_pixels8_mmi; |
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put_pixels_tab[0][0] = put_pixels16_mmi; |
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put_no_rnd_pixels_tab[0][0] = put_pixels16_mmi; |
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get_pixels = get_pixels_mmi; |
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} |
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