[PATCH 2/2] Implement av_get_cpu_mm_flags().
Stefano Sabatini
stefano.sabatini-lala
Sun Aug 29 23:29:38 CEST 2010
---
libavcodec/Makefile | 1 -
libavcodec/arm/dsputil_init_arm.c | 5 --
libavcodec/dct-test.c | 3 +-
libavcodec/h263dec.c | 3 +-
libavcodec/libxvidff.c | 6 +-
libavcodec/ppc/dsputil_ppc.c | 14 +----
libavcodec/ppc/h264_altivec.c | 5 +-
libavcodec/ppc/mpegvideo_altivec.c | 3 +-
libavcodec/ppc/vp8dsp_altivec.c | 3 +-
libavcodec/x86/cavsdsp_mmx.c | 3 +-
libavcodec/x86/dnxhd_mmx.c | 2 +-
libavcodec/x86/dsputil_mmx.c | 4 +-
libavcodec/x86/dsputilenc_mmx.c | 3 +-
libavcodec/x86/fft.c | 5 +-
libavcodec/x86/h264dsp_mmx.c | 3 +-
libavcodec/x86/motion_est_mmx.c | 2 +-
libavcodec/x86/mpegaudiodec_mmx.c | 3 +-
libavcodec/x86/mpegvideo_mmx.c | 1 +
libavcodec/x86/snowdsp_mmx.c | 2 +-
libavcodec/x86/vc1dsp_mmx.c | 3 +-
libavcodec/x86/vp56dsp_init.c | 3 +-
libavcodec/x86/vp8dsp-init.c | 3 +-
libavutil/Makefile | 3 +-
libavutil/arm/cpu.h | 29 ++++++++++
libavutil/cpu.c | 60 ++++++++++++++++++++
libavutil/cpu.h | 6 ++
libavutil/internal.h | 4 +
.../ppc/check_altivec.c => libavutil/ppc/cpu.h | 22 +++++--
libavcodec/x86/cpuid.c => libavutil/x86/cpu.h | 34 ++---------
29 files changed, 160 insertions(+), 78 deletions(-)
create mode 100644 libavutil/arm/cpu.h
create mode 100644 libavutil/cpu.c
rename libavcodec/ppc/check_altivec.c => libavutil/ppc/cpu.h (89%)
rename libavcodec/x86/cpuid.c => libavutil/x86/cpu.h (82%)
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index 3d0cb8c..0c9c632 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -633,7 +633,6 @@ SKIPHEADERS += mpegaudio3.h
EXAMPLES = api
TESTPROGS = cabac dct eval fft h264 iirfilter rangecoder snow
-TESTPROGS-$(ARCH_X86) += x86/cpuid
TESTPROGS-$(HAVE_MMX) += motion
TESTOBJS = dctref.o
diff --git a/libavcodec/arm/dsputil_init_arm.c b/libavcodec/arm/dsputil_init_arm.c
index d1c482b..5c13290 100644
--- a/libavcodec/arm/dsputil_init_arm.c
+++ b/libavcodec/arm/dsputil_init_arm.c
@@ -73,11 +73,6 @@ static void simple_idct_arm_add(uint8_t *dest, int line_size, DCTELEM *block)
ff_add_pixels_clamped(block, dest, line_size);
}
-int mm_support(void)
-{
- return HAVE_IWMMXT * AV_CPU_MM_IWMMXT;
-}
-
void dsputil_init_arm(DSPContext* c, AVCodecContext *avctx)
{
ff_put_pixels_clamped = c->put_pixels_clamped;
diff --git a/libavcodec/dct-test.c b/libavcodec/dct-test.c
index 7160a7b..8440a07 100644
--- a/libavcodec/dct-test.c
+++ b/libavcodec/dct-test.c
@@ -32,6 +32,7 @@
#include <unistd.h>
#include <math.h>
+#include "libavutil/cpu.h"
#include "libavutil/common.h"
#include "libavutil/lfg.h"
@@ -554,7 +555,7 @@ int main(int argc, char **argv)
int test_idct = 0, test_248_dct = 0;
int c,i;
int test=1;
- cpu_flags = mm_support();
+ cpu_flags = av_get_cpu_mm_flags();
ff_ref_dct_init();
idct_mmx_init();
diff --git a/libavcodec/h263dec.c b/libavcodec/h263dec.c
index 76882d1..cd3d598 100644
--- a/libavcodec/h263dec.c
+++ b/libavcodec/h263dec.c
@@ -25,6 +25,7 @@
* H.263 decoder.
*/
+#include "libavutil/cpu.h"
#include "internal.h"
#include "avcodec.h"
#include "dsputil.h"
@@ -553,7 +554,7 @@ retry:
#endif
#if HAVE_MMX
- if(s->codec_id == CODEC_ID_MPEG4 && s->xvid_build>=0 && avctx->idct_algo == FF_IDCT_AUTO && (mm_support() & AV_CPU_MM_MMX)){
+ if(s->codec_id == CODEC_ID_MPEG4 && s->xvid_build>=0 && avctx->idct_algo == FF_IDCT_AUTO && (av_get_cpu_mm_flags() & AV_CPU_MM_MMX)){
avctx->idct_algo= FF_IDCT_XVIDMMX;
avctx->coded_width= 0; // force reinit
// dsputil_init(&s->dsp, avctx);
diff --git a/libavcodec/libxvidff.c b/libavcodec/libxvidff.c
index 37f6161..bda8ece 100644
--- a/libavcodec/libxvidff.c
+++ b/libavcodec/libxvidff.c
@@ -28,6 +28,7 @@
/* needed for mkstemp() */
#define _XOPEN_SOURCE 600
+#include "libavutil/internal.h"
#include <xvid.h>
#include <unistd.h>
#include "avcodec.h"
@@ -44,9 +45,6 @@
#define BUFFER_REMAINING(x) (BUFFER_SIZE - strlen(x))
#define BUFFER_CAT(x) (&((x)[strlen(x)]))
-/* For PPC Use */
-int has_altivec(void);
-
/**
* Structure for the private Xvid context.
* This stores all the private context for the codec.
@@ -215,7 +213,7 @@ static av_cold int xvid_encode_init(AVCodecContext *avctx) {
#if ARCH_PPC
/* Xvid's PPC support is borked, use libavcodec to detect */
#if HAVE_ALTIVEC
- if( has_altivec() ) {
+ if (ff_has_altivec()) {
xvid_gbl_init.cpu_flags = XVID_CPU_FORCE | XVID_CPU_ALTIVEC;
} else
#endif
diff --git a/libavcodec/ppc/dsputil_ppc.c b/libavcodec/ppc/dsputil_ppc.c
index 09a5f32..682b3fd 100644
--- a/libavcodec/ppc/dsputil_ppc.c
+++ b/libavcodec/ppc/dsputil_ppc.c
@@ -20,20 +20,10 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include "libavutil/internal.h"
#include "libavcodec/dsputil.h"
#include "dsputil_altivec.h"
-int mm_support(void)
-{
- int result = 0;
-#if HAVE_ALTIVEC
- if (has_altivec()) {
- result |= AV_CPU_MM_ALTIVEC;
- }
-#endif /* result */
- return result;
-}
-
/* ***** WARNING ***** WARNING ***** WARNING ***** */
/*
clear_blocks_dcbz32_ppc will not work properly on PowerPC processors with a
@@ -179,7 +169,7 @@ void dsputil_init_ppc(DSPContext* c, AVCodecContext *avctx)
#if HAVE_ALTIVEC
if(CONFIG_H264_DECODER) dsputil_h264_init_ppc(c, avctx);
- if (has_altivec()) {
+ if (ff_has_altivec()) {
dsputil_init_altivec(c, avctx);
if(CONFIG_VC1_DECODER)
vc1dsp_init_altivec(c, avctx);
diff --git a/libavcodec/ppc/h264_altivec.c b/libavcodec/ppc/h264_altivec.c
index c9c2944..1cbee30 100644
--- a/libavcodec/ppc/h264_altivec.c
+++ b/libavcodec/ppc/h264_altivec.c
@@ -18,6 +18,7 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include "libavutil/internal.h"
#include "libavcodec/dsputil.h"
#include "libavcodec/h264data.h"
#include "libavcodec/h264dsp.h"
@@ -969,7 +970,7 @@ H264_WEIGHT( 8, 4)
void dsputil_h264_init_ppc(DSPContext* c, AVCodecContext *avctx) {
- if (has_altivec()) {
+ if (ff_has_altivec()) {
c->put_h264_chroma_pixels_tab[0] = put_h264_chroma_mc8_altivec;
c->avg_h264_chroma_pixels_tab[0] = avg_h264_chroma_mc8_altivec;
c->put_no_rnd_vc1_chroma_pixels_tab[0] = put_no_rnd_vc1_chroma_mc8_altivec;
@@ -1001,7 +1002,7 @@ void dsputil_h264_init_ppc(DSPContext* c, AVCodecContext *avctx) {
void ff_h264dsp_init_ppc(H264DSPContext *c)
{
- if (has_altivec()) {
+ if (ff_has_altivec()) {
c->h264_idct_add = ff_h264_idct_add_altivec;
c->h264_idct_add8 = ff_h264_idct_add8_altivec;
c->h264_idct_add16 = ff_h264_idct_add16_altivec;
diff --git a/libavcodec/ppc/mpegvideo_altivec.c b/libavcodec/ppc/mpegvideo_altivec.c
index 19d897f..818da39 100644
--- a/libavcodec/ppc/mpegvideo_altivec.c
+++ b/libavcodec/ppc/mpegvideo_altivec.c
@@ -23,6 +23,7 @@
#include <stdlib.h>
#include <stdio.h>
+#include "libavutil/internal.h"
#include "libavcodec/dsputil.h"
#include "libavcodec/mpegvideo.h"
@@ -570,7 +571,7 @@ static void dct_unquantize_h263_altivec(MpegEncContext *s,
void MPV_common_init_altivec(MpegEncContext *s)
{
- if (!has_altivec()) return;
+ if (!ff_has_altivec()) return;
if (s->avctx->lowres==0) {
if ((s->avctx->idct_algo == FF_IDCT_AUTO) ||
diff --git a/libavcodec/ppc/vp8dsp_altivec.c b/libavcodec/ppc/vp8dsp_altivec.c
index f7b3cda..da77ee6 100644
--- a/libavcodec/ppc/vp8dsp_altivec.c
+++ b/libavcodec/ppc/vp8dsp_altivec.c
@@ -20,6 +20,7 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include "libavutil/internal.h"
#include "libavcodec/vp8dsp.h"
#include "dsputil_altivec.h"
#include "types_altivec.h"
@@ -265,7 +266,7 @@ static void put_vp8_pixels16_altivec(uint8_t *dst, int stride, uint8_t *src, int
av_cold void ff_vp8dsp_init_altivec(VP8DSPContext *c)
{
- if (!has_altivec())
+ if (!ff_has_altivec())
return;
c->put_vp8_epel_pixels_tab[0][0][0] = put_vp8_pixels16_altivec;
diff --git a/libavcodec/x86/cavsdsp_mmx.c b/libavcodec/x86/cavsdsp_mmx.c
index 6022469..df7b94f 100644
--- a/libavcodec/x86/cavsdsp_mmx.c
+++ b/libavcodec/x86/cavsdsp_mmx.c
@@ -23,6 +23,7 @@
*/
#include "libavutil/common.h"
+#include "libavutil/cpu.h"
#include "libavutil/x86_cpu.h"
#include "libavcodec/dsputil.h"
#include "libavcodec/cavsdsp.h"
@@ -472,7 +473,7 @@ static void ff_cavsdsp_init_3dnow(CAVSDSPContext* c, AVCodecContext *avctx) {
void ff_cavsdsp_init_mmx(CAVSDSPContext *c, AVCodecContext *avctx)
{
- int mm_flags = mm_support();
+ int mm_flags = av_get_cpu_mm_flags();
if (mm_flags & AV_CPU_MM_MMX2) ff_cavsdsp_init_mmx2 (c, avctx);
if (mm_flags & AV_CPU_MM_3DNOW) ff_cavsdsp_init_3dnow(c, avctx);
diff --git a/libavcodec/x86/dnxhd_mmx.c b/libavcodec/x86/dnxhd_mmx.c
index b9d720d..68f4ee0 100644
--- a/libavcodec/x86/dnxhd_mmx.c
+++ b/libavcodec/x86/dnxhd_mmx.c
@@ -52,7 +52,7 @@ static void get_pixels_8x4_sym_sse2(DCTELEM *block, const uint8_t *pixels, int l
void ff_dnxhd_init_mmx(DNXHDEncContext *ctx)
{
- if (mm_support() & AV_CPU_MM_SSE2) {
+ if (av_get_cpu_mm_flags() & AV_CPU_MM_SSE2) {
ctx->get_pixels_8x4_sym = get_pixels_8x4_sym_sse2;
}
}
diff --git a/libavcodec/x86/dsputil_mmx.c b/libavcodec/x86/dsputil_mmx.c
index e251af7..a9e5ac6 100644
--- a/libavcodec/x86/dsputil_mmx.c
+++ b/libavcodec/x86/dsputil_mmx.c
@@ -2501,7 +2501,7 @@ float ff_scalarproduct_float_sse(const float *v1, const float *v2, int order);
void dsputil_init_mmx(DSPContext* c, AVCodecContext *avctx)
{
- int mm_flags = mm_support();
+ int mm_flags = av_get_cpu_mm_flags();
if (avctx->dsp_mask) {
if (avctx->dsp_mask & AV_CPU_MM_FORCE)
@@ -2930,7 +2930,7 @@ void dsputil_init_mmx(DSPContext* c, AVCodecContext *avctx)
#if CONFIG_H264DSP
void ff_h264dsp_init_x86(H264DSPContext *c)
{
- int mm_flags = mm_support();
+ int mm_flags = av_get_cpu_mm_flags();
if (mm_flags & AV_CPU_MM_MMX) {
c->h264_idct_dc_add=
diff --git a/libavcodec/x86/dsputilenc_mmx.c b/libavcodec/x86/dsputilenc_mmx.c
index 66f463a..41f2f68 100644
--- a/libavcodec/x86/dsputilenc_mmx.c
+++ b/libavcodec/x86/dsputilenc_mmx.c
@@ -22,6 +22,7 @@
* MMX optimization by Nick Kurshev <nickols_k at mail.ru>
*/
+#include "libavutil/cpu.h"
#include "libavutil/x86_cpu.h"
#include "libavcodec/dsputil.h"
#include "libavcodec/mpegvideo.h"
@@ -1350,7 +1351,7 @@ static int ssd_int8_vs_int16_mmx(const int8_t *pix1, const int16_t *pix2, int si
void dsputilenc_init_mmx(DSPContext* c, AVCodecContext *avctx)
{
- int mm_flags = mm_support();
+ int mm_flags = av_get_cpu_mm_flags();
if (mm_flags & AV_CPU_MM_MMX) {
const int dct_algo = avctx->dct_algo;
diff --git a/libavcodec/x86/fft.c b/libavcodec/x86/fft.c
index f915cbf..06e8243 100644
--- a/libavcodec/x86/fft.c
+++ b/libavcodec/x86/fft.c
@@ -16,13 +16,14 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include "libavutil/cpu.h"
#include "libavcodec/dsputil.h"
#include "fft.h"
av_cold void ff_fft_init_mmx(FFTContext *s)
{
#if HAVE_YASM
- int has_vectors = mm_support();
+ int has_vectors = av_get_cpu_mm_flags();
if (has_vectors & AV_CPU_MM_SSE && HAVE_SSE) {
/* SSE for P3/P4/K8 */
s->imdct_calc = ff_imdct_calc_sse;
@@ -46,7 +47,7 @@ av_cold void ff_fft_init_mmx(FFTContext *s)
#if CONFIG_DCT
av_cold void ff_dct_init_mmx(DCTContext *s)
{
- int has_vectors = mm_support();
+ int has_vectors = av_get_cpu_mm_flags();
if (has_vectors & AV_CPU_MM_SSE && HAVE_SSE)
s->dct32 = ff_dct32_float_sse;
}
diff --git a/libavcodec/x86/h264dsp_mmx.c b/libavcodec/x86/h264dsp_mmx.c
index 911f1d1..7534386 100644
--- a/libavcodec/x86/h264dsp_mmx.c
+++ b/libavcodec/x86/h264dsp_mmx.c
@@ -18,6 +18,7 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include "libavutil/cpu.h"
#include "dsputil_mmx.h"
#include "libavcodec/h264pred.h"
@@ -2368,7 +2369,7 @@ void ff_pred4x4_vertical_vp8_mmxext(uint8_t *src, const uint8_t *topright, int s
#if CONFIG_H264PRED
void ff_h264_pred_init_x86(H264PredContext *h, int codec_id)
{
- int mm_flags = mm_support();
+ int mm_flags = av_get_cpu_mm_flags();
#if HAVE_YASM
if (mm_flags & AV_CPU_MM_MMX) {
diff --git a/libavcodec/x86/motion_est_mmx.c b/libavcodec/x86/motion_est_mmx.c
index a70e4e5..f1c3b41 100644
--- a/libavcodec/x86/motion_est_mmx.c
+++ b/libavcodec/x86/motion_est_mmx.c
@@ -427,7 +427,7 @@ PIX_SAD(mmx2)
void dsputil_init_pix_mmx(DSPContext* c, AVCodecContext *avctx)
{
- int mm_flags = mm_support();
+ int mm_flags = av_get_cpu_mm_flags();
if (mm_flags & AV_CPU_MM_MMX) {
c->pix_abs[0][0] = sad16_mmx;
diff --git a/libavcodec/x86/mpegaudiodec_mmx.c b/libavcodec/x86/mpegaudiodec_mmx.c
index 0d57bc4..36d5470 100644
--- a/libavcodec/x86/mpegaudiodec_mmx.c
+++ b/libavcodec/x86/mpegaudiodec_mmx.c
@@ -19,6 +19,7 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include "libavutil/cpu.h"
#include "libavutil/x86_cpu.h"
#define CONFIG_FLOAT 1
@@ -149,7 +150,7 @@ static void apply_window_mp3(float *in, float *win, int *unused, float *out,
void ff_mpegaudiodec_init_mmx(MPADecodeContext *s)
{
- int mm_flags = mm_support();
+ int mm_flags = av_get_cpu_mm_flags();
if (mm_flags & AV_CPU_MM_SSE2) {
s->apply_window_mp3 = apply_window_mp3;
diff --git a/libavcodec/x86/mpegvideo_mmx.c b/libavcodec/x86/mpegvideo_mmx.c
index fece818..7e1bef4 100644
--- a/libavcodec/x86/mpegvideo_mmx.c
+++ b/libavcodec/x86/mpegvideo_mmx.c
@@ -22,6 +22,7 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include "libavutil/cpu.h"
#include "libavutil/x86_cpu.h"
#include "libavcodec/avcodec.h"
#include "libavcodec/dsputil.h"
diff --git a/libavcodec/x86/snowdsp_mmx.c b/libavcodec/x86/snowdsp_mmx.c
index 13b7b7d..7726ac8 100644
--- a/libavcodec/x86/snowdsp_mmx.c
+++ b/libavcodec/x86/snowdsp_mmx.c
@@ -875,7 +875,7 @@ static void ff_snow_inner_add_yblock_mmx(const uint8_t *obmc, const int obmc_str
void ff_dwt_init_x86(DWTContext *c)
{
- int mm_flags = mm_support();
+ int mm_flags = av_get_cpu_mm_flags();
if (mm_flags & AV_CPU_MM_MMX) {
if(mm_flags & AV_CPU_MM_SSE2 & 0){
diff --git a/libavcodec/x86/vc1dsp_mmx.c b/libavcodec/x86/vc1dsp_mmx.c
index 930f2ed..b22f62a 100644
--- a/libavcodec/x86/vc1dsp_mmx.c
+++ b/libavcodec/x86/vc1dsp_mmx.c
@@ -24,6 +24,7 @@
* OTHER DEALINGS IN THE SOFTWARE.
*/
+#include "libavutil/cpu.h"
#include "libavutil/x86_cpu.h"
#include "libavcodec/dsputil.h"
#include "dsputil_mmx.h"
@@ -714,7 +715,7 @@ static void vc1_h_loop_filter16_sse4(uint8_t *src, int stride, int pq)
#endif
void ff_vc1dsp_init_mmx(DSPContext* dsp, AVCodecContext *avctx) {
- int mm_flags = mm_support();
+ int mm_flags = av_get_cpu_mm_flags();
dsp->put_vc1_mspel_pixels_tab[ 0] = ff_put_vc1_mspel_mc00_mmx;
dsp->put_vc1_mspel_pixels_tab[ 4] = put_vc1_mspel_mc01_mmx;
diff --git a/libavcodec/x86/vp56dsp_init.c b/libavcodec/x86/vp56dsp_init.c
index a9dc1d9..059c8e5 100644
--- a/libavcodec/x86/vp56dsp_init.c
+++ b/libavcodec/x86/vp56dsp_init.c
@@ -20,6 +20,7 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include "libavutil/cpu.h"
#include "libavutil/x86_cpu.h"
#include "libavcodec/dsputil.h"
#include "libavcodec/vp56dsp.h"
@@ -32,7 +33,7 @@ void ff_vp6_filter_diag4_sse2(uint8_t *dst, uint8_t *src, int stride,
av_cold void ff_vp56dsp_init_x86(VP56DSPContext* c, enum CodecID codec)
{
#if HAVE_YASM
- int mm_flags = mm_support();
+ int mm_flags = av_get_cpu_mm_flags();
if (CONFIG_VP6_DECODER && codec == CODEC_ID_VP6) {
if (mm_flags & AV_CPU_MM_MMX) {
diff --git a/libavcodec/x86/vp8dsp-init.c b/libavcodec/x86/vp8dsp-init.c
index baee2a9..d835f61 100644
--- a/libavcodec/x86/vp8dsp-init.c
+++ b/libavcodec/x86/vp8dsp-init.c
@@ -20,6 +20,7 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include "libavutil/cpu.h"
#include "libavutil/x86_cpu.h"
#include "libavcodec/vp8dsp.h"
@@ -282,7 +283,7 @@ DECLARE_LOOP_FILTER(sse4)
av_cold void ff_vp8dsp_init_x86(VP8DSPContext* c)
{
- int mm_flags = mm_support();
+ int mm_flags = av_get_cpu_mm_flags();
#if HAVE_YASM
if (mm_flags & AV_CPU_MM_MMX) {
diff --git a/libavutil/Makefile b/libavutil/Makefile
index c74eb70..545e1c2 100644
--- a/libavutil/Makefile
+++ b/libavutil/Makefile
@@ -34,6 +34,7 @@ OBJS = adler32.o \
aes.o \
avstring.o \
base64.o \
+ cpu.o \
crc.o \
des.o \
error.o \
@@ -56,7 +57,7 @@ OBJS = adler32.o \
tree.o \
utils.o \
-TESTPROGS = adler32 aes base64 crc des lls md5 pca sha softfloat tree
+TESTPROGS = adler32 aes base64 cpu crc des lls md5 pca sha softfloat tree
TESTPROGS-$(HAVE_LZO1X_999_COMPRESS) += lzo
DIRS = arm bfin sh4 x86
diff --git a/libavutil/arm/cpu.h b/libavutil/arm/cpu.h
new file mode 100644
index 0000000..f67ac32
--- /dev/null
+++ b/libavutil/arm/cpu.h
@@ -0,0 +1,29 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg 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.
+ *
+ * FFmpeg 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 FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVUTIL_ARM_CPU_H
+#define AVUTIL_ARM_CPU_H
+
+#include "config.h"
+
+int av_get_cpu_flags(void)
+{
+ return HAVE_IWMMXT * AV_CPU_MM_IWMMXT;
+}
+
+#endif /* AVUTIL_ARM_CPU_H */
diff --git a/libavutil/cpu.c b/libavutil/cpu.c
new file mode 100644
index 0000000..92d85a6
--- /dev/null
+++ b/libavutil/cpu.c
@@ -0,0 +1,60 @@
+/*
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg 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.
+ *
+ * FFmpeg 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 FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "cpu.h"
+#include "config.h"
+
+#if ARCH_ARM
+# include "arm/cpu.h"
+#elif ARCH_PPC
+# include "arm/ppc.h"
+#elif ARCH_X86
+# include "x86/cpu.h"
+#else
+int av_get_cpu_mm_flags(void)
+{
+ return 0;
+}
+#endif
+
+#ifdef TEST
+
+#undef printf
+
+int main(void)
+{
+ int mm_flags = av_get_cpu_mm_flags();
+
+ printf("mm_flags = 0x%08X\n", mm_flags);
+ printf("mm_flags = %s%s%s%s%s%s%s%s%s%s%s%s\n",
+ mm_flags & AV_CPU_MM_MMX ? "MMX " : "",
+ mm_flags & AV_CPU_MM_MMX2 ? "MMX2 " : "",
+ mm_flags & AV_CPU_MM_SSE ? "SSE " : "",
+ mm_flags & AV_CPU_MM_SSE2 ? "SSE2 " : "",
+ mm_flags & AV_CPU_MM_SSE2SLOW ? "SSE2(slow) " : "",
+ mm_flags & AV_CPU_MM_SSE3 ? "SSE3 " : "",
+ mm_flags & AV_CPU_MM_SSE3SLOW ? "SSE3(slow) " : "",
+ mm_flags & AV_CPU_MM_SSSE3 ? "SSSE3 " : "",
+ mm_flags & AV_CPU_MM_SSE4 ? "SSE4.1 " : "",
+ mm_flags & AV_CPU_MM_SSE42 ? "SSE4.2 " : "",
+ mm_flags & AV_CPU_MM_3DNOW ? "3DNow " : "",
+ mm_flags & AV_CPU_MM_3DNOWEXT ? "3DNowExt " : "");
+
+ return 0;
+}
+#endif
diff --git a/libavutil/cpu.h b/libavutil/cpu.h
index ec361e0..738ef86 100644
--- a/libavutil/cpu.h
+++ b/libavutil/cpu.h
@@ -41,4 +41,10 @@
#define AV_CPU_MM_IWMMXT 0x0100 ///< XScale IWMMXT
#define AV_CPU_MM_ALTIVEC 0x0001 ///< standard
+/**
+ * Return the flags which specify the MultiMedia extensions supported
+ * by the CPU.
+ */
+int av_get_cpu_mm_flags(void);
+
#endif /* AVUTIL_CPU_H */
diff --git a/libavutil/internal.h b/libavutil/internal.h
index 53d2b94..934e15e 100644
--- a/libavutil/internal.h
+++ b/libavutil/internal.h
@@ -231,4 +231,8 @@
type ff_##name args
#endif
+#if HAVE_ALTIVEC
+int ff_has_altivec(void);
+#endif
+
#endif /* AVUTIL_INTERNAL_H */
diff --git a/libavcodec/ppc/check_altivec.c b/libavutil/ppc/cpu.h
similarity index 89%
rename from libavcodec/ppc/check_altivec.c
rename to libavutil/ppc/cpu.h
index 6b9332c..a1fe304 100644
--- a/libavcodec/ppc/check_altivec.c
+++ b/libavutil/ppc/cpu.h
@@ -16,11 +16,8 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-
-/**
- * @file
- * Check for AltiVec presence.
- */
+#ifndef AVUTIL_PPC_CPU_H
+#define AVUTIL_PPC_CPU_H
#ifdef __APPLE__
#undef _POSIX_C_SOURCE
@@ -42,8 +39,7 @@
* This function MAY rely on signal() or fork() in order to make sure AltiVec
* is present.
*/
-
-int has_altivec(void)
+int ff_has_altivec(void)
{
#ifdef __AMIGAOS4__
ULONG result = 0;
@@ -85,3 +81,15 @@ int has_altivec(void)
#endif /* __AMIGAOS4__ */
}
+int av_get_cpu_flags(void)
+{
+ int result = 0;
+#if HAVE_ALTIVEC
+ if (ff_has_altivec()) {
+ result |= AV_CPU_MM_ALTIVEC;
+ }
+#endif
+ return result;
+}
+
+#endif /* AVUTIL_PPC_CPU_H */
diff --git a/libavcodec/x86/cpuid.c b/libavutil/x86/cpu.h
similarity index 82%
rename from libavcodec/x86/cpuid.c
rename to libavutil/x86/cpu.h
index a9a8d78..397885f 100644
--- a/libavcodec/x86/cpuid.c
+++ b/libavutil/x86/cpu.h
@@ -20,11 +20,12 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#ifndef AVUTIL_X86_CPU_H
+#define AVUTIL_X86_CPU_H
+
#include <stdlib.h>
#include "libavutil/x86_cpu.h"
-#include "libavcodec/dsputil.h"
-
-#undef printf
+#include "libavutil/cpu.h"
/* ebx saving is necessary for PIC. gcc seems unable to see it alone */
#define cpuid(index,eax,ebx,ecx,edx)\
@@ -37,7 +38,7 @@
: "0" (index));
/* Function to test if multimedia instructions are supported... */
-int mm_support(void)
+int av_get_cpu_mm_flags(void)
{
int rval = 0;
int eax, ebx, ecx, edx;
@@ -121,30 +122,7 @@ int mm_support(void)
if (rval & AV_CPU_MM_SSE3) rval ^= AV_CPU_MM_SSE3SLOW|AV_CPU_MM_SSE3;
}
-#if 0
- av_log(NULL, AV_LOG_DEBUG, "%s%s%s%s%s%s%s%s%s%s%s%s\n",
- (rval&AV_CPU_MM_MMX) ? "MMX ":"",
- (rval&AV_CPU_MM_MMX2) ? "MMX2 ":"",
- (rval&AV_CPU_MM_SSE) ? "SSE ":"",
- (rval&AV_CPU_MM_SSE2) ? "SSE2 ":"",
- (rval&AV_CPU_MM_SSE2SLOW) ? "SSE2(slow) ":"",
- (rval&AV_CPU_MM_SSE3) ? "SSE3 ":"",
- (rval&AV_CPU_MM_SSE3SLOW) ? "SSE3(slow) ":"",
- (rval&AV_CPU_MM_SSSE3) ? "SSSE3 ":"",
- (rval&AV_CPU_MM_SSE4) ? "SSE4.1 ":"",
- (rval&AV_CPU_MM_SSE42) ? "SSE4.2 ":"",
- (rval&AV_CPU_MM_3DNOW) ? "3DNow ":"",
- (rval&AV_CPU_MM_3DNOWEXT) ? "3DNowExt ":"");
-#endif
return rval;
}
-#ifdef TEST
-int main ( void )
-{
- int mm_flags;
- mm_flags = mm_support();
- printf("mm_support = 0x%08X\n",mm_flags);
- return 0;
-}
-#endif
+#endif /* AVUTIL_X86_CPU_H */
--
1.7.1
--cWoXeonUoKmBZSoM--
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