/* * MMI optimized DSP utils * Copyright (c) 2000, 2001 Fabrice Bellard. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * MMI optimization by Leon van Stuivenberg <leonvs@iae.nl> * clear_blocks_mmi() by BroadQ */ #include "../dsputil.h" #include "mmi.h" void ff_mmi_idct_put(uint8_t *dest, int line_size, DCTELEM *block); void ff_mmi_idct_add(uint8_t *dest, int line_size, DCTELEM *block); static void clear_blocks_mmi(DCTELEM * blocks) { asm volatile( ".set noreorder \n" "addiu $9, %0, 768 \n" "nop \n" "1: \n" "sq $0, 0(%0) \n" "move $8, %0 \n" "addi %0, %0, 64 \n" "sq $0, 16($8) \n" "slt $10, %0, $9 \n" "sq $0, 32($8) \n" "bnez $10, 1b \n" "sq $0, 48($8) \n" ".set reorder \n" : "+r" (blocks) :: "$8", "$9", "memory" ); } static void get_pixels_mmi(DCTELEM *block, const uint8_t *pixels, int line_size) { asm volatile( ".set push \n\t" ".set mips3 \n\t" "ld $8, 0(%0) \n\t" "add %0, %0, %2 \n\t" "ld $9, 0(%0) \n\t" "add %0, %0, %2 \n\t" "ld $10, 0(%0) \n\t" "pextlb $8, $0, $8 \n\t" "sq $8, 0(%1) \n\t" "add %0, %0, %2 \n\t" "ld $8, 0(%0) \n\t" "pextlb $9, $0, $9 \n\t" "sq $9, 16(%1) \n\t" "add %0, %0, %2 \n\t" "ld $9, 0(%0) \n\t" "pextlb $10, $0, $10 \n\t" "sq $10, 32(%1) \n\t" "add %0, %0, %2 \n\t" "ld $10, 0(%0) \n\t" "pextlb $8, $0, $8 \n\t" "sq $8, 48(%1) \n\t" "add %0, %0, %2 \n\t" "ld $8, 0(%0) \n\t" "pextlb $9, $0, $9 \n\t" "sq $9, 64(%1) \n\t" "add %0, %0, %2 \n\t" "ld $9, 0(%0) \n\t" "pextlb $10, $0, $10 \n\t" "sq $10, 80(%1) \n\t" "pextlb $8, $0, $8 \n\t" "sq $8, 96(%1) \n\t" "pextlb $9, $0, $9 \n\t" "sq $9, 112(%1) \n\t" ".set pop \n\t" : "+r" (pixels) : "r" (block), "r" (line_size) : "$8", "$9", "$10", "memory" ); } static void put_pixels8_mmi(uint8_t *block, const uint8_t *pixels, int line_size, int h) { asm volatile( ".set push \n\t" ".set mips3 \n\t" "1: \n\t" "ldr $8, 0(%1) \n\t" "addiu %2, %2, -1 \n\t" "ldl $8, 7(%1) \n\t" "add %1, %1, %3 \n\t" "sd $8, 0(%0) \n\t" "add %0, %0, %3 \n\t" "bgtz %2, 1b \n\t" ".set pop \n\t" : "+r" (block), "+r" (pixels), "+r" (h) : "r" (line_size) : "$8", "memory" ); } static void put_pixels16_mmi(uint8_t *block, const uint8_t *pixels, int line_size, int h) { asm volatile ( ".set push \n\t" ".set mips3 \n\t" "1: \n\t" "ldr $8, 0(%1) \n\t" "add $11, %1, %3 \n\t" "ldl $8, 7(%1) \n\t" "add $10, %0, %3 \n\t" "ldr $9, 8(%1) \n\t" "ldl $9, 15(%1) \n\t" "ldr $12, 0($11) \n\t" "add %1, $11, %3 \n\t" "ldl $12, 7($11) \n\t" "pcpyld $8, $9, $8 \n\t" "sq $8, 0(%0) \n\t" "ldr $13, 8($11) \n\t" "addiu %2, %2, -2 \n\t" "ldl $13, 15($11) \n\t" "add %0, $10, %3 \n\t" "pcpyld $12, $13, $12 \n\t" "sq $12, 0($10) \n\t" "bgtz %2, 1b \n\t" ".set pop \n\t" : "+r" (block), "+r" (pixels), "+r" (h) : "r" (line_size) : "$8", "$9", "$10", "$11", "$12", "$13", "memory" ); } void dsputil_init_mmi(DSPContext* c, AVCodecContext *avctx) { const int idct_algo= avctx->idct_algo; c->clear_blocks = clear_blocks_mmi; c->put_pixels_tab[1][0] = put_pixels8_mmi; c->put_no_rnd_pixels_tab[1][0] = put_pixels8_mmi; c->put_pixels_tab[0][0] = put_pixels16_mmi; c->put_no_rnd_pixels_tab[0][0] = put_pixels16_mmi; c->get_pixels = get_pixels_mmi; if(idct_algo==FF_IDCT_AUTO || idct_algo==FF_IDCT_PS2){ c->idct_put= ff_mmi_idct_put; c->idct_add= ff_mmi_idct_add; c->idct_permutation_type= FF_LIBMPEG2_IDCT_PERM; } }