diff options
Diffstat (limited to 'libavcodec/mips/dsputil_mmi.c')
| -rw-r--r-- | libavcodec/mips/dsputil_mmi.c | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/libavcodec/mips/dsputil_mmi.c b/libavcodec/mips/dsputil_mmi.c new file mode 100644 index 0000000000..20a435a065 --- /dev/null +++ b/libavcodec/mips/dsputil_mmi.c @@ -0,0 +1,162 @@ +/* + * MMI optimized DSP utils + * Copyright (c) 2000, 2001 Fabrice Bellard + * + * MMI optimization by Leon van Stuivenberg + * clear_blocks_mmi() by BroadQ + * + * This file is part of Libav. + * + * Libav 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 2.1 of the License, or (at your option) any later version. + * + * Libav 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 Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "libavcodec/dsputil.h" +#include "mmi.h" + +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; + const int high_bit_depth = avctx->bits_per_raw_sample > 8; + + if (!high_bit_depth) { + 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 (avctx->bits_per_raw_sample <= 8 && + (idct_algo == FF_IDCT_AUTO || idct_algo == FF_IDCT_MMI)) { + c->idct_put= ff_mmi_idct_put; + c->idct_add= ff_mmi_idct_add; + c->idct = ff_mmi_idct; + c->idct_permutation_type= FF_LIBMPEG2_IDCT_PERM; + } +} |