* Copyright (c) 2002 Dieter Shirley
* Copyright (c) 2003-2004 Romain Dolbeau <romain@dolbeau.org>
*
- * This library is free software; you can redistribute it and/or
+ * 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 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This library is distributed in the hope that it will be useful,
+ * 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 this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * License along with Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include "../dsputil.h"
-
-#include "dsputil_ppc.h"
-
-#ifdef HAVE_ALTIVEC
+#include "libavutil/cpu.h"
+#include "libavcodec/dsputil.h"
#include "dsputil_altivec.h"
-#endif
-
-extern void fdct_altivec(int16_t *block);
-extern void idct_put_altivec(uint8_t *dest, int line_size, int16_t *block);
-extern void idct_add_altivec(uint8_t *dest, int line_size, int16_t *block);
-
-int mm_flags = 0;
-
-int mm_support(void)
-{
- int result = 0;
-#ifdef HAVE_ALTIVEC
- if (has_altivec()) {
- result |= MM_ALTIVEC;
- }
-#endif /* result */
- return result;
-}
-
-#ifdef POWERPC_PERFORMANCE_REPORT
-unsigned long long perfdata[POWERPC_NUM_PMC_ENABLED][powerpc_perf_total][powerpc_data_total];
-/* list below must match enum in dsputil_ppc.h */
-static unsigned char* perfname[] = {
- "ff_fft_calc_altivec",
- "gmc1_altivec",
- "dct_unquantize_h263_altivec",
- "fdct_altivec",
- "idct_add_altivec",
- "idct_put_altivec",
- "put_pixels16_altivec",
- "avg_pixels16_altivec",
- "avg_pixels8_altivec",
- "put_pixels8_xy2_altivec",
- "put_no_rnd_pixels8_xy2_altivec",
- "put_pixels16_xy2_altivec",
- "put_no_rnd_pixels16_xy2_altivec",
- "hadamard8_diff8x8_altivec",
- "hadamard8_diff16_altivec",
- "avg_pixels8_xy2_altivec",
- "clear_blocks_dcbz32_ppc",
- "clear_blocks_dcbz128_ppc",
- "put_h264_chroma_mc8_altivec",
- "avg_h264_chroma_mc8_altivec",
- "put_h264_qpel16_h_lowpass_altivec",
- "avg_h264_qpel16_h_lowpass_altivec",
- "put_h264_qpel16_v_lowpass_altivec",
- "avg_h264_qpel16_v_lowpass_altivec",
- "put_h264_qpel16_hv_lowpass_altivec",
- "avg_h264_qpel16_hv_lowpass_altivec",
- ""
-};
-#include <stdio.h>
-#endif
-
-#ifdef POWERPC_PERFORMANCE_REPORT
-void powerpc_display_perf_report(void)
-{
- int i, j;
- av_log(NULL, AV_LOG_INFO, "PowerPC performance report\n Values are from the PMC registers, and represent whatever the registers are set to record.\n");
- for(i = 0 ; i < powerpc_perf_total ; i++)
- {
- for (j = 0; j < POWERPC_NUM_PMC_ENABLED ; j++)
- {
- if (perfdata[j][i][powerpc_data_num] != (unsigned long long)0)
- av_log(NULL, AV_LOG_INFO,
- " Function \"%s\" (pmc%d):\n\tmin: %llu\n\tmax: %llu\n\tavg: %1.2lf (%llu)\n",
- perfname[i],
- j+1,
- perfdata[j][i][powerpc_data_min],
- perfdata[j][i][powerpc_data_max],
- (double)perfdata[j][i][powerpc_data_sum] /
- (double)perfdata[j][i][powerpc_data_num],
- perfdata[j][i][powerpc_data_num]);
- }
- }
-}
-#endif /* POWERPC_PERFORMANCE_REPORT */
/* ***** WARNING ***** WARNING ***** WARNING ***** */
/*
- clear_blocks_dcbz32_ppc will not work properly
- on PowerPC processors with a cache line size
- not equal to 32 bytes.
- Fortunately all processor used by Apple up to
- at least the 7450 (aka second generation G4)
- use 32 bytes cache line.
- This is due to the use of the 'dcbz' instruction.
- It simply clear to zero a single cache line,
- so you need to know the cache line size to use it !
- It's absurd, but it's fast...
-
- update 24/06/2003 : Apple released yesterday the G5,
- with a PPC970. cache line size : 128 bytes. Oups.
- The semantic of dcbz was changed, it always clear
- 32 bytes. so the function below will work, but will
- be slow. So I fixed check_dcbz_effect to use dcbzl,
- which is defined to clear a cache line (as dcbz before).
- So we still can distinguish, and use dcbz (32 bytes)
- or dcbzl (one cache line) as required.
-
- see <http://developer.apple.com/technotes/tn/tn2087.html>
- and <http://developer.apple.com/technotes/tn/tn2086.html>
+clear_blocks_dcbz32_ppc will not work properly on PowerPC processors with a
+cache line size not equal to 32 bytes.
+Fortunately all processor used by Apple up to at least the 7450 (aka second
+generation G4) use 32 bytes cache line.
+This is due to the use of the 'dcbz' instruction. It simply clear to zero a
+single cache line, so you need to know the cache line size to use it !
+It's absurd, but it's fast...
+
+update 24/06/2003 : Apple released yesterday the G5, with a PPC970. cache line
+size: 128 bytes. Oups.
+The semantic of dcbz was changed, it always clear 32 bytes. so the function
+below will work, but will be slow. So I fixed check_dcbz_effect to use dcbzl,
+which is defined to clear a cache line (as dcbz before). So we still can
+distinguish, and use dcbz (32 bytes) or dcbzl (one cache line) as required.
+
+see <http://developer.apple.com/technotes/tn/tn2087.html>
+and <http://developer.apple.com/technotes/tn/tn2086.html>
*/
-void clear_blocks_dcbz32_ppc(DCTELEM *blocks)
+static void clear_blocks_dcbz32_ppc(DCTELEM *blocks)
{
-POWERPC_PERF_DECLARE(powerpc_clear_blocks_dcbz32, 1);
register int misal = ((unsigned long)blocks & 0x00000010);
register int i = 0;
-POWERPC_PERF_START_COUNT(powerpc_clear_blocks_dcbz32, 1);
-#if 1
if (misal) {
- ((unsigned long*)blocks)[0] = 0L;
- ((unsigned long*)blocks)[1] = 0L;
- ((unsigned long*)blocks)[2] = 0L;
- ((unsigned long*)blocks)[3] = 0L;
- i += 16;
+ ((unsigned long*)blocks)[0] = 0L;
+ ((unsigned long*)blocks)[1] = 0L;
+ ((unsigned long*)blocks)[2] = 0L;
+ ((unsigned long*)blocks)[3] = 0L;
+ i += 16;
}
for ( ; i < sizeof(DCTELEM)*6*64-31 ; i += 32) {
-#ifndef __MWERKS__
- asm volatile("dcbz %0,%1" : : "b" (blocks), "r" (i) : "memory");
-#else
- __dcbz( blocks, i );
-#endif
+ __asm__ volatile("dcbz %0,%1" : : "b" (blocks), "r" (i) : "memory");
}
if (misal) {
- ((unsigned long*)blocks)[188] = 0L;
- ((unsigned long*)blocks)[189] = 0L;
- ((unsigned long*)blocks)[190] = 0L;
- ((unsigned long*)blocks)[191] = 0L;
- i += 16;
+ ((unsigned long*)blocks)[188] = 0L;
+ ((unsigned long*)blocks)[189] = 0L;
+ ((unsigned long*)blocks)[190] = 0L;
+ ((unsigned long*)blocks)[191] = 0L;
+ i += 16;
}
-#else
- memset(blocks, 0, sizeof(DCTELEM)*6*64);
-#endif
-POWERPC_PERF_STOP_COUNT(powerpc_clear_blocks_dcbz32, 1);
}
/* same as above, when dcbzl clear a whole 128B cache line
i.e. the PPC970 aka G5 */
-#ifndef NO_DCBZL
-void clear_blocks_dcbz128_ppc(DCTELEM *blocks)
+#if HAVE_DCBZL
+static void clear_blocks_dcbz128_ppc(DCTELEM *blocks)
{
-POWERPC_PERF_DECLARE(powerpc_clear_blocks_dcbz128, 1);
register int misal = ((unsigned long)blocks & 0x0000007f);
register int i = 0;
-POWERPC_PERF_START_COUNT(powerpc_clear_blocks_dcbz128, 1);
-#if 1
- if (misal) {
- // we could probably also optimize this case,
- // but there's not much point as the machines
- // aren't available yet (2003-06-26)
- memset(blocks, 0, sizeof(DCTELEM)*6*64);
+ if (misal) {
+ // we could probably also optimize this case,
+ // but there's not much point as the machines
+ // aren't available yet (2003-06-26)
+ memset(blocks, 0, sizeof(DCTELEM)*6*64);
}
else
- for ( ; i < sizeof(DCTELEM)*6*64 ; i += 128) {
- asm volatile("dcbzl %0,%1" : : "b" (blocks), "r" (i) : "memory");
- }
-#else
- memset(blocks, 0, sizeof(DCTELEM)*6*64);
-#endif
-POWERPC_PERF_STOP_COUNT(powerpc_clear_blocks_dcbz128, 1);
+ for ( ; i < sizeof(DCTELEM)*6*64 ; i += 128) {
+ __asm__ volatile("dcbzl %0,%1" : : "b" (blocks), "r" (i) : "memory");
+ }
}
#else
-void clear_blocks_dcbz128_ppc(DCTELEM *blocks)
+static void clear_blocks_dcbz128_ppc(DCTELEM *blocks)
{
- memset(blocks, 0, sizeof(DCTELEM)*6*64);
+ memset(blocks, 0, sizeof(DCTELEM)*6*64);
}
#endif
-#ifndef NO_DCBZL
+#if HAVE_DCBZL
/* check dcbz report how many bytes are set to 0 by dcbz */
/* update 24/06/2003 : replace dcbz by dcbzl to get
the intended effect (Apple "fixed" dcbz)
unfortunately this cannot be used unless the assembler
knows about dcbzl ... */
-long check_dcbzl_effect(void)
+static long check_dcbzl_effect(void)
{
- register char *fakedata = (char*)av_malloc(1024);
- register char *fakedata_middle;
- register long zero = 0;
- register long i = 0;
- long count = 0;
-
- if (!fakedata)
- {
- return 0L;
- }
+ register char *fakedata = av_malloc(1024);
+ register char *fakedata_middle;
+ register long zero = 0;
+ register long i = 0;
+ long count = 0;
+
+ if (!fakedata) {
+ return 0L;
+ }
- fakedata_middle = (fakedata + 512);
+ fakedata_middle = (fakedata + 512);
- memset(fakedata, 0xFF, 1024);
+ memset(fakedata, 0xFF, 1024);
- /* below the constraint "b" seems to mean "Address base register"
- in gcc-3.3 / RS/6000 speaks. seems to avoid using r0, so.... */
- asm volatile("dcbzl %0, %1" : : "b" (fakedata_middle), "r" (zero));
+ /* below the constraint "b" seems to mean "Address base register"
+ in gcc-3.3 / RS/6000 speaks. seems to avoid using r0, so.... */
+ __asm__ volatile("dcbzl %0, %1" : : "b" (fakedata_middle), "r" (zero));
- for (i = 0; i < 1024 ; i ++)
- {
- if (fakedata[i] == (char)0)
- count++;
- }
+ for (i = 0; i < 1024 ; i ++) {
+ if (fakedata[i] == (char)0)
+ count++;
+ }
- av_free(fakedata);
+ av_free(fakedata);
- return count;
+ return count;
}
#else
-long check_dcbzl_effect(void)
+static long check_dcbzl_effect(void)
{
return 0;
}
#endif
-
-void dsputil_h264_init_ppc(DSPContext* c, AVCodecContext *avctx);
-
-void dsputil_init_ppc(DSPContext* c, AVCodecContext *avctx)
+static void prefetch_ppc(void *mem, int stride, int h)
{
- // Common optimizations whether Altivec is available or not
-
- switch (check_dcbzl_effect()) {
- case 32:
- c->clear_blocks = clear_blocks_dcbz32_ppc;
- break;
- case 128:
- c->clear_blocks = clear_blocks_dcbz128_ppc;
- break;
- default:
- break;
- }
-
-#ifdef HAVE_ALTIVEC
- dsputil_h264_init_ppc(c, avctx);
-
- if (has_altivec()) {
- mm_flags |= MM_ALTIVEC;
+ register const uint8_t *p = mem;
+ do {
+ __asm__ volatile ("dcbt 0,%0" : : "r" (p));
+ p+= stride;
+ } while(--h);
+}
- // Altivec specific optimisations
- c->pix_abs[0][1] = sad16_x2_altivec;
- c->pix_abs[0][2] = sad16_y2_altivec;
- c->pix_abs[0][3] = sad16_xy2_altivec;
- c->pix_abs[0][0] = sad16_altivec;
- c->pix_abs[1][0] = sad8_altivec;
- c->sad[0]= sad16_altivec;
- c->sad[1]= sad8_altivec;
- c->pix_norm1 = pix_norm1_altivec;
- c->sse[1]= sse8_altivec;
- c->sse[0]= sse16_altivec;
- c->pix_sum = pix_sum_altivec;
- c->diff_pixels = diff_pixels_altivec;
- c->get_pixels = get_pixels_altivec;
-// next one disabled as it's untested.
-#if 0
- c->add_bytes= add_bytes_altivec;
-#endif /* 0 */
- c->put_pixels_tab[0][0] = put_pixels16_altivec;
- /* the two functions do the same thing, so use the same code */
- c->put_no_rnd_pixels_tab[0][0] = put_pixels16_altivec;
- c->avg_pixels_tab[0][0] = avg_pixels16_altivec;
- c->avg_pixels_tab[1][0] = avg_pixels8_altivec;
- c->avg_pixels_tab[1][3] = avg_pixels8_xy2_altivec;
- c->put_pixels_tab[1][3] = put_pixels8_xy2_altivec;
- c->put_no_rnd_pixels_tab[1][3] = put_no_rnd_pixels8_xy2_altivec;
- c->put_pixels_tab[0][3] = put_pixels16_xy2_altivec;
- c->put_no_rnd_pixels_tab[0][3] = put_no_rnd_pixels16_xy2_altivec;
+void ff_dsputil_init_ppc(DSPContext* c, AVCodecContext *avctx)
+{
+ const int high_bit_depth = avctx->bits_per_raw_sample > 8;
+
+ // Common optimizations whether AltiVec is available or not
+ c->prefetch = prefetch_ppc;
+ if (!high_bit_depth) {
+ switch (check_dcbzl_effect()) {
+ case 32:
+ c->clear_blocks = clear_blocks_dcbz32_ppc;
+ break;
+ case 128:
+ c->clear_blocks = clear_blocks_dcbz128_ppc;
+ break;
+ default:
+ break;
+ }
+ }
- c->gmc1 = gmc1_altivec;
+#if HAVE_ALTIVEC
+ if(CONFIG_H264_DECODER) ff_dsputil_h264_init_ppc(c, avctx);
-#ifdef CONFIG_DARWIN // ATM gcc-3.3 and gcc-3.4 fail to compile these in linux...
- c->hadamard8_diff[0] = hadamard8_diff16_altivec;
- c->hadamard8_diff[1] = hadamard8_diff8x8_altivec;
-#endif
+ if (av_get_cpu_flags() & AV_CPU_FLAG_ALTIVEC) {
+ ff_dsputil_init_altivec(c, avctx);
+ ff_float_init_altivec(c, avctx);
+ ff_int_init_altivec(c, avctx);
+ c->gmc1 = ff_gmc1_altivec;
-#ifdef CONFIG_ENCODERS
- if (avctx->dct_algo == FF_DCT_AUTO ||
- avctx->dct_algo == FF_DCT_ALTIVEC)
- {
- c->fdct = fdct_altivec;
- }
+#if CONFIG_ENCODERS
+ if (avctx->bits_per_raw_sample <= 8 &&
+ (avctx->dct_algo == FF_DCT_AUTO ||
+ avctx->dct_algo == FF_DCT_ALTIVEC)) {
+ c->fdct = ff_fdct_altivec;
+ }
#endif //CONFIG_ENCODERS
- if (avctx->lowres==0)
- {
- if ((avctx->idct_algo == FF_IDCT_AUTO) ||
- (avctx->idct_algo == FF_IDCT_ALTIVEC))
- {
- c->idct_put = idct_put_altivec;
- c->idct_add = idct_add_altivec;
-#ifndef ALTIVEC_USE_REFERENCE_C_CODE
- c->idct_permutation_type = FF_TRANSPOSE_IDCT_PERM;
-#else /* ALTIVEC_USE_REFERENCE_C_CODE */
- c->idct_permutation_type = FF_NO_IDCT_PERM;
-#endif /* ALTIVEC_USE_REFERENCE_C_CODE */
+ if (avctx->bits_per_raw_sample <= 8) {
+ if ((avctx->idct_algo == FF_IDCT_AUTO) ||
+ (avctx->idct_algo == FF_IDCT_ALTIVEC)) {
+ c->idct_put = ff_idct_put_altivec;
+ c->idct_add = ff_idct_add_altivec;
+ c->idct_permutation_type = FF_TRANSPOSE_IDCT_PERM;
+ }else if((CONFIG_VP3_DECODER || CONFIG_VP5_DECODER || CONFIG_VP6_DECODER) &&
+ avctx->idct_algo==FF_IDCT_VP3){
+ c->idct_put = ff_vp3_idct_put_altivec;
+ c->idct_add = ff_vp3_idct_add_altivec;
+ c->idct = ff_vp3_idct_altivec;
+ c->idct_permutation_type = FF_TRANSPOSE_IDCT_PERM;
+ }
}
- }
-#ifdef POWERPC_PERFORMANCE_REPORT
- {
- int i, j;
- for (i = 0 ; i < powerpc_perf_total ; i++)
- {
- for (j = 0; j < POWERPC_NUM_PMC_ENABLED ; j++)
- {
- perfdata[j][i][powerpc_data_min] = 0xFFFFFFFFFFFFFFFFULL;
- perfdata[j][i][powerpc_data_max] = 0x0000000000000000ULL;
- perfdata[j][i][powerpc_data_sum] = 0x0000000000000000ULL;
- perfdata[j][i][powerpc_data_num] = 0x0000000000000000ULL;
- }
- }
- }
-#endif /* POWERPC_PERFORMANCE_REPORT */
- } else
-#endif /* HAVE_ALTIVEC */
- {
- // Non-AltiVec PPC optimisations
-
- // ... pending ...
}
+#endif /* HAVE_ALTIVEC */
}
projects / ffmpeg / blobdiff