Commit a1641875 authored by David I. Lehn's avatar David I. Lehn
Browse files

- basic arch check for HAVE_RDTSC

Original commit message from CVS:
- basic arch check for HAVE_RDTSC
- use common gst_trace_read_tsc() for RDTSC call
- add untested function to do ascii dump of trace data
parent 1d9a7781
......@@ -21,6 +21,8 @@
#undef HAVE_CPU_ARM
#undef HAVE_CPU_SPARC
#undef HAVE_RDTSC
#undef HAVE_GDK_PIXBUF
#undef HAVE_LIBGHTTP
#undef HAVE_LIBMMX
......
......@@ -117,16 +117,22 @@ dnl ==============================================
dnl Determine CPU
case "x${target_cpu}" in
xi?86) HAVE_CPU_I386=yes ;
AC_DEFINE(HAVE_CPU_I386) ;;
xpowerpc) HAVE_CPU_PPC=yes ;
AC_DEFINE(HAVE_CPU_PPC) ;;
xalpha) HAVE_CPU_ALPHA=yes ;
AC_DEFINE(HAVE_CPU_ALPHA) ;;
xarm*) HAVE_CPU_ARM=yes ;
AC_DEFINE(HAVE_CPU_ARM) ;;
xsparc*) HAVE_CPU_SPARC=yes ;
AC_DEFINE(HAVE_CPU_SPARC) ;;
xi?86 | k?) HAVE_CPU_I386=yes
AC_DEFINE(HAVE_CPU_I386)
dnl FIXME could use some better detection
dnl (ie CPUID)
case "x${target_cpu}" in
xi386 | xi486) ;;
*) AC_DEFINE(HAVE_RDTSC) ;;
esac ;;
xpowerpc) HAVE_CPU_PPC=yes
AC_DEFINE(HAVE_CPU_PPC) ;;
xalpha) HAVE_CPU_ALPHA=yes
AC_DEFINE(HAVE_CPU_ALPHA) ;;
xarm*) HAVE_CPU_ARM=yes
AC_DEFINE(HAVE_CPU_ARM) ;;
xsparc*) HAVE_CPU_SPARC=yes
AC_DEFINE(HAVE_CPU_SPARC) ;;
esac
dnl Determine endianness
......@@ -720,6 +726,10 @@ if test "x$HAVE_LINUX_VIDEODEV" = xyes; then
AC_DEFINE(HAVE_LINUX_VIDEODEV)
fi
if test "x$HAVE_MPEG2DEC" = xyes; then
AC_DEFINE(HAVE_MPEG2DEC)
fi
dnl #############################
dnl # Set automake conditionals #
dnl #############################
......
......@@ -33,18 +33,15 @@
#include "gsttrace.h"
#ifdef HAVE_RDTS
__inline__ void read_tsc(guint64 *dst) {
__asm__ __volatile__
("rdtsc"
: "=a" (*(guint32 *)dst), "=d" (*(((guint32 *)dst) + 1))
:
: "eax", "edx");
}
#ifdef HAVE_RDTSC
guint64 tsc;
__asm__ __volatile__ ("rdtsc" : "=A" (tsc));
*dst = tsc;
#else
__inline__ void read_tsc(guint64 *dst) {
}
*dst = 0;
#endif
}
void gst_trace_read_tsc(guint64 *dst) {
read_tsc(dst);
......@@ -91,6 +88,27 @@ void gst_trace_flush(GstTrace *trace) {
trace->bufoffset = 0;
}
void gst_trace_text_flush(GstTrace *trace) {
int i;
const int strsize = 20+1 + 10+1 + 10+1 + 112+1 + 1;
char str[strsize];
if (!trace) {
trace = _gst_trace_default;
if (!trace ) return;
}
for (i=0; i<trace->bufoffset; i++) {
snprintf(str, strsize, "%20lld %10d %10d %s\n",
trace->buf[i].timestamp,
trace->buf[i].sequence,
trace->buf[i].data,
trace->buf[i].message);
write(trace->fd,str,strlen(str));
}
trace->bufoffset = 0;
}
void gst_trace_set_default(GstTrace *trace) {
g_return_if_fail(trace != NULL);
_gst_trace_default = trace;
......
......@@ -52,6 +52,7 @@ GstTrace* gst_trace_new (guchar *filename, gint size);
void gst_trace_destroy (GstTrace *trace);
void gst_trace_flush (GstTrace *trace);
void gst_trace_text_flush (GstTrace *trace);
#define gst_trace_get_size(trace) ((trace)->bufsize)
#define gst_trace_get_offset(trace) ((trace)->bufoffset)
#define gst_trace_get_remaining(trace) ((trace)->bufsize - (trace)->bufoffset)
......
......@@ -39,20 +39,6 @@ char * meets (double val, double limit)
return ((fabs(val) <= limit) ? "meets" : "FAILS");
}
#ifdef HAVE_RDTS
__inline__ void read_tsc(guint64 *dst) {
__asm__ __volatile__
("rdtsc"
: "=a" (*(guint32 *)dst), "=d" (*(((guint32 *)dst) + 1))
:
: "eax", "edx");
}
#else
__inline__ void read_tsc(guint64 *dst) {
}
#endif
int
main(int argc, char **argv)
{
......@@ -128,9 +114,9 @@ main(int argc, char **argv)
memcpy(testout, refcoefs, sizeof(DCTELEM)*DCTSIZE2);
}
read_tsc(&tscstart);
gst_trace_read_tsc(&tscstart);
gst_idct_convert(idct, testout);
read_tsc(&tscstop);
gst_trace_read_tsc(&tscstop);
//printf("time %llu, %llu %lld\n", tscstart, tscstop, tscstop-tscstart);
if (tscstop - tscstart < tscmin) tscmin = tscstop-tscstart;
if (tscstop - tscstart > tscmax) tscmax = tscstop-tscstart;
......
#include <gst/gst.h>
#include <stdlib.h>
#define rdtscll(result) \
__asm__ __volatile__("rdtsc" : "=A" (result) : /* No inputs */ )
static guint64 max = 0, min = -1, total = 0;
static guint count = 0;
static guint print_del = 1;
......@@ -11,16 +8,14 @@ static guint iterations = 0;
static guint mhz = 0;
void handoff_src(GstElement *src, GstBuffer *buf, gpointer user_data) {
guint64 start;
rdtscll(start);
GST_BUFFER_TIMESTAMP(buf) = start;
gst_trace_read_tsc(&GST_BUFFER_TIMESTAMP(buf));
}
void handoff_sink(GstElement *sink, GstBuffer *buf, gpointer user_data) {
guint64 end, d, avg;
guint avg_ns;
rdtscll(end);
gst_trace_read_tsc(&end);
d = end - GST_BUFFER_TIMESTAMP(buf);
if (d > max) max = d;
if (d < min) min = d;
......
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