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Diffstat (limited to 'src/libffmpeg/libavcodec/mpegvideo_mmx.c')
-rw-r--r--src/libffmpeg/libavcodec/mpegvideo_mmx.c232
1 files changed, 0 insertions, 232 deletions
diff --git a/src/libffmpeg/libavcodec/mpegvideo_mmx.c b/src/libffmpeg/libavcodec/mpegvideo_mmx.c
deleted file mode 100644
index 7b3ba8aff..000000000
--- a/src/libffmpeg/libavcodec/mpegvideo_mmx.c
+++ /dev/null
@@ -1,232 +0,0 @@
-/*
- * The simplest mpeg encoder (well, it was the simplest!)
- * Copyright (c) 2000,2001 Gerard Lantau.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Optimized for ia32 cpus by Nick Kurshev <nickols_k@mail.ru>
- */
-
-#include "dsputil.h"
-#include "mpegvideo.h"
-#include "xineutils.h"
-
-#if 0
-
-/* XXX: GL: I don't understand why this function needs optimization
- (it is called only once per frame!), so I disabled it */
-
-void MPV_frame_start(MpegEncContext *s)
-{
- if (s->pict_type == B_TYPE) {
- __asm __volatile(
- "movl (%1), %%eax\n\t"
- "movl 4(%1), %%edx\n\t"
- "movl 8(%1), %%ecx\n\t"
- "movl %%eax, (%0)\n\t"
- "movl %%edx, 4(%0)\n\t"
- "movl %%ecx, 8(%0)\n\t"
- :
- :"r"(s->current_picture), "r"(s->aux_picture)
- :"eax","edx","ecx","memory");
- } else {
- /* swap next and last */
- __asm __volatile(
- "movl (%1), %%eax\n\t"
- "movl 4(%1), %%edx\n\t"
- "movl 8(%1), %%ecx\n\t"
- "xchgl (%0), %%eax\n\t"
- "xchgl 4(%0), %%edx\n\t"
- "xchgl 8(%0), %%ecx\n\t"
- "movl %%eax, (%1)\n\t"
- "movl %%edx, 4(%1)\n\t"
- "movl %%ecx, 8(%1)\n\t"
- "movl %%eax, (%2)\n\t"
- "movl %%edx, 4(%2)\n\t"
- "movl %%ecx, 8(%2)\n\t"
- :
- :"r"(s->last_picture), "r"(s->next_picture), "r"(s->current_picture)
- :"eax","edx","ecx","memory");
- }
-}
-#endif
-
-static const unsigned long long int mm_wabs __attribute__ ((aligned(8))) = 0xffffffffffffffffULL;
-static const unsigned long long int mm_wone __attribute__ ((aligned(8))) = 0x0001000100010001ULL;
-
-/*
- NK:
- Note: looking at PARANOID:
- "enable all paranoid tests for rounding, overflows, etc..."
-
-#ifdef PARANOID
- if (level < -2048 || level > 2047)
- fprintf(stderr, "unquant error %d %d\n", i, level);
-#endif
- We can suppose that result of two multiplications can't be greate of 0xFFFF
- i.e. is 16-bit, so we use here only PMULLW instruction and can avoid
- a complex multiplication.
-=====================================================
- Full formula for multiplication of 2 integer numbers
- which are represent as high:low words:
- input: value1 = high1:low1
- value2 = high2:low2
- output: value3 = value1*value2
- value3=high3:low3 (on overflow: modulus 2^32 wrap-around)
- this mean that for 0x123456 * 0x123456 correct result is 0x766cb0ce4
- but this algorithm will compute only 0x66cb0ce4
- this limited by 16-bit size of operands
- ---------------------------------
- tlow1 = high1*low2
- tlow2 = high2*low1
- tlow1 = tlow1 + tlow2
- high3:low3 = low1*low2
- high3 += tlow1
-*/
-static void dct_unquantize_mpeg1_mmx(MpegEncContext *s,
- DCTELEM *block, int n, int qscale)
-{
- int i, level;
- const UINT16 *quant_matrix;
- if (s->mb_intra) {
- if (n < 4)
- block[0] = block[0] * s->y_dc_scale;
- else
- block[0] = block[0] * s->c_dc_scale;
- if (s->out_format == FMT_H263) {
- i = 1;
- goto unquant_even;
- }
- /* XXX: only mpeg1 */
- quant_matrix = s->intra_matrix;
- i=1;
- /* Align on 4 elements boundary */
- while(i&3)
- {
- level = block[i];
- if (level) {
- if (level < 0) level = -level;
- level = (int)(level * qscale * quant_matrix[i]) >> 3;
- level = (level - 1) | 1;
- if (block[i] < 0) level = -level;
- block[i] = level;
- }
- i++;
- }
- __asm __volatile(
- "movd %0, %%mm6\n\t" /* mm6 = qscale | 0 */
- "punpckldq %%mm6, %%mm6\n\t" /* mm6 = qscale | qscale */
- "movq %2, %%mm4\n\t"
- "movq %%mm6, %%mm7\n\t"
- "movq %1, %%mm5\n\t"
- "packssdw %%mm6, %%mm7\n\t" /* mm7 = qscale | qscale | qscale | qscale */
- "pxor %%mm6, %%mm6\n\t"
- ::"g"(qscale),"m"(mm_wone),"m"(mm_wabs):"memory");
- for(;i<64;i+=4) {
- __asm __volatile(
- "movq %1, %%mm0\n\t"
- "movq %%mm7, %%mm1\n\t"
- "movq %%mm0, %%mm2\n\t"
- "movq %%mm0, %%mm3\n\t"
- "pcmpgtw %%mm6, %%mm2\n\t"
- "pmullw %2, %%mm1\n\t"
- "pandn %%mm4, %%mm2\n\t"
- "por %%mm5, %%mm2\n\t"
- "pmullw %%mm2, %%mm0\n\t" /* mm0 = abs(block[i]). */
-
- "pcmpeqw %%mm6, %%mm3\n\t"
- "pmullw %%mm0, %%mm1\n\t"
- "psraw $3, %%mm1\n\t"
- "psubw %%mm5, %%mm1\n\t" /* block[i] --; */
- "pandn %%mm4, %%mm3\n\t" /* fake of pcmpneqw : mm0 != 0 then mm1 = -1 */
- "por %%mm5, %%mm1\n\t" /* block[i] |= 1 */
- "pmullw %%mm2, %%mm1\n\t" /* change signs again */
-
- "pand %%mm3, %%mm1\n\t" /* nullify if was zero */
- "movq %%mm1, %0"
- :"=m"(block[i])
- :"m"(block[i]), "m"(quant_matrix[i])
- :"memory");
- }
- } else {
- i = 0;
- unquant_even:
- quant_matrix = s->non_intra_matrix;
- /* Align on 4 elements boundary */
- while(i&3)
- {
- level = block[i];
- if (level) {
- if (level < 0) level = -level;
- level = (((level << 1) + 1) * qscale *
- ((int) quant_matrix[i])) >> 4;
- level = (level - 1) | 1;
- if(block[i] < 0) level = -level;
- block[i] = level;
- }
- i++;
- }
- __asm __volatile(
- "movd %0, %%mm6\n\t" /* mm6 = qscale | 0 */
- "punpckldq %%mm6, %%mm6\n\t" /* mm6 = qscale | qscale */
- "movq %2, %%mm4\n\t"
- "movq %%mm6, %%mm7\n\t"
- "movq %1, %%mm5\n\t"
- "packssdw %%mm6, %%mm7\n\t" /* mm7 = qscale | qscale | qscale | qscale */
- "pxor %%mm6, %%mm6\n\t"
- ::"g"(qscale),"m"(mm_wone),"m"(mm_wabs):"memory");
- for(;i<64;i+=4) {
- __asm __volatile(
- "movq %1, %%mm0\n\t"
- "movq %%mm7, %%mm1\n\t"
- "movq %%mm0, %%mm2\n\t"
- "movq %%mm0, %%mm3\n\t"
- "pcmpgtw %%mm6, %%mm2\n\t"
- "pmullw %2, %%mm1\n\t"
- "pandn %%mm4, %%mm2\n\t"
- "por %%mm5, %%mm2\n\t"
- "pmullw %%mm2, %%mm0\n\t" /* mm0 = abs(block[i]). */
- "psllw $1, %%mm0\n\t" /* block[i] <<= 1 */
- "paddw %%mm5, %%mm0\n\t" /* block[i] ++ */
-
- "pmullw %%mm0, %%mm1\n\t"
- "psraw $4, %%mm1\n\t"
- "pcmpeqw %%mm6, %%mm3\n\t"
- "psubw %%mm5, %%mm1\n\t" /* block[i] --; */
- "pandn %%mm4, %%mm3\n\t" /* fake of pcmpneqw : mm0 != 0 then mm1 = -1 */
- "por %%mm5, %%mm1\n\t" /* block[i] |= 1 */
- "pmullw %%mm2, %%mm1\n\t" /* change signs again */
-
- "pand %%mm3, %%mm1\n\t" /* nullify if was zero */
- "movq %%mm1, %0"
- :"=m"(block[i])
- :"m"(block[i]), "m"(quant_matrix[i])
- :"memory");
- }
- }
-}
-
-void MPV_common_init_mmx(MpegEncContext *s)
-{
- int mm_flags;
-
- mm_flags = xine_mm_accel();
-
- if (mm_flags & MM_ACCEL_X86_MMX) {
- /* XXX: should include h263 optimization too. It would go even
- faster! */
- s->dct_unquantize = dct_unquantize_mpeg1_mmx;
- }
-}
generated by cgit v1.2.3 (git 2.25.1) at 2025-06-21 06:16:53 +0000