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19a0729b4c
This patch lets e.g. dsputil_init chose dsp functions with respect to the bit depth to decode. The naming scheme of bit depth dependent functions is <base name>_<bit depth>[_<prefix>] (i.e. the old clear_blocks_c is now named clear_blocks_8_c). Note: Some of the functions for high bit depth is not dependent on the bit depth, but only on the pixel size. This leaves some room for optimizing binary size. Preparatory patch for high bit depth h264 decoding support. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
167 lines
5.5 KiB
C
167 lines
5.5 KiB
C
/*
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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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* MMI optimization by Leon van Stuivenberg
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* clear_blocks_mmi() by BroadQ
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*
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* This file is part of Libav.
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*
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* Libav 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 2.1 of the License, or (at your option) any later version.
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*
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* Libav 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 Libav; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "libavcodec/dsputil.h"
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#include "mmi.h"
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void ff_mmi_idct_put(uint8_t *dest, int line_size, DCTELEM *block);
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void ff_mmi_idct_add(uint8_t *dest, int line_size, DCTELEM *block);
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void ff_mmi_idct(DCTELEM *block);
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static void clear_blocks_mmi(DCTELEM * blocks)
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{
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__asm__ volatile(
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".set noreorder \n"
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"addiu $9, %0, 768 \n"
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"nop \n"
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"1: \n"
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"sq $0, 0(%0) \n"
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"move $8, %0 \n"
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"addi %0, %0, 64 \n"
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"sq $0, 16($8) \n"
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"slt $10, %0, $9 \n"
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"sq $0, 32($8) \n"
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"bnez $10, 1b \n"
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"sq $0, 48($8) \n"
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".set reorder \n"
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: "+r" (blocks) :: "$8", "$9", "memory" );
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}
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static void get_pixels_mmi(DCTELEM *block, const uint8_t *pixels, int line_size)
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{
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__asm__ volatile(
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".set push \n\t"
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".set mips3 \n\t"
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"ld $8, 0(%0) \n\t"
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"add %0, %0, %2 \n\t"
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"ld $9, 0(%0) \n\t"
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"add %0, %0, %2 \n\t"
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"ld $10, 0(%0) \n\t"
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"pextlb $8, $0, $8 \n\t"
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"sq $8, 0(%1) \n\t"
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"add %0, %0, %2 \n\t"
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"ld $8, 0(%0) \n\t"
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"pextlb $9, $0, $9 \n\t"
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"sq $9, 16(%1) \n\t"
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"add %0, %0, %2 \n\t"
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"ld $9, 0(%0) \n\t"
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"pextlb $10, $0, $10 \n\t"
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"sq $10, 32(%1) \n\t"
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"add %0, %0, %2 \n\t"
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"ld $10, 0(%0) \n\t"
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"pextlb $8, $0, $8 \n\t"
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"sq $8, 48(%1) \n\t"
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"add %0, %0, %2 \n\t"
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"ld $8, 0(%0) \n\t"
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"pextlb $9, $0, $9 \n\t"
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"sq $9, 64(%1) \n\t"
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"add %0, %0, %2 \n\t"
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"ld $9, 0(%0) \n\t"
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"pextlb $10, $0, $10 \n\t"
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"sq $10, 80(%1) \n\t"
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"pextlb $8, $0, $8 \n\t"
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"sq $8, 96(%1) \n\t"
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"pextlb $9, $0, $9 \n\t"
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"sq $9, 112(%1) \n\t"
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".set pop \n\t"
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: "+r" (pixels) : "r" (block), "r" (line_size) : "$8", "$9", "$10", "memory" );
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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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__asm__ volatile(
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".set push \n\t"
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".set mips3 \n\t"
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"1: \n\t"
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"ldr $8, 0(%1) \n\t"
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"addiu %2, %2, -1 \n\t"
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"ldl $8, 7(%1) \n\t"
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"add %1, %1, %3 \n\t"
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"sd $8, 0(%0) \n\t"
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"add %0, %0, %3 \n\t"
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"bgtz %2, 1b \n\t"
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".set pop \n\t"
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: "+r" (block), "+r" (pixels), "+r" (h) : "r" (line_size)
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: "$8", "memory" );
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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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__asm__ volatile (
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".set push \n\t"
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".set mips3 \n\t"
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"1: \n\t"
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"ldr $8, 0(%1) \n\t"
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"add $11, %1, %3 \n\t"
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"ldl $8, 7(%1) \n\t"
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"add $10, %0, %3 \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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"ldr $12, 0($11) \n\t"
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"add %1, $11, %3 \n\t"
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"ldl $12, 7($11) \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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"ldr $13, 8($11) \n\t"
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"addiu %2, %2, -2 \n\t"
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"ldl $13, 15($11) \n\t"
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"add %0, $10, %3 \n\t"
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"pcpyld $12, $13, $12 \n\t"
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"sq $12, 0($10) \n\t"
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"bgtz %2, 1b \n\t"
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".set pop \n\t"
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: "+r" (block), "+r" (pixels), "+r" (h) : "r" (line_size)
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: "$8", "$9", "$10", "$11", "$12", "$13", "memory" );
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}
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void dsputil_init_mmi(DSPContext* c, AVCodecContext *avctx)
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{
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const int idct_algo= avctx->idct_algo;
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const int high_bit_depth = avctx->codec_id == CODEC_ID_H264 && avctx->bits_per_raw_sample > 8;
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if (!high_bit_depth) {
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c->clear_blocks = clear_blocks_mmi;
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c->put_pixels_tab[1][0] = put_pixels8_mmi;
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c->put_no_rnd_pixels_tab[1][0] = put_pixels8_mmi;
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c->put_pixels_tab[0][0] = put_pixels16_mmi;
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c->put_no_rnd_pixels_tab[0][0] = put_pixels16_mmi;
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}
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c->get_pixels = get_pixels_mmi;
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if(idct_algo==FF_IDCT_AUTO || idct_algo==FF_IDCT_PS2){
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c->idct_put= ff_mmi_idct_put;
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c->idct_add= ff_mmi_idct_add;
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c->idct = ff_mmi_idct;
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c->idct_permutation_type= FF_LIBMPEG2_IDCT_PERM;
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}
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}
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