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perf: Save/restore gstate across runs

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Reset the cairo_t to the initial state so that subsequent tests are not
affected by earlier tests.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2011-08-01 12:59:11 +01:00
parent c4f4c57261
commit c5405f7324
1 changed files with 10 additions and 1 deletions
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11
perf/cairo-perf-micro.c
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@ -203,7 +203,9 @@ cairo_perf_run (cairo_perf_t *perf,
name, perf->target->name,
_content_to_string (perf->target->content, 0),
perf->size);
cairo_save (perf->cr);
perf_func (perf->cr, perf->size, perf->size, 1);
cairo_restore (perf->cr);
status = cairo_surface_write_to_png (cairo_get_target (perf->cr), filename);
if (status) {
fprintf (stderr, "Failed to generate output check '%s': %s\n",
@ -232,10 +234,14 @@ cairo_perf_run (cairo_perf_t *perf,
if (similar)
cairo_push_group_with_content (perf->cr,
cairo_boilerplate_content (perf->target->content));
else
cairo_save (perf->cr);
perf_func (perf->cr, perf->size, perf->size, 1);
loops = cairo_perf_calibrate (perf, perf_func);
if (similar)
cairo_pattern_destroy (cairo_pop_group (perf->cr));
else
cairo_restore (perf->cr);
low_std_dev_count = 0;
for (i =0; i < perf->iterations; i++) {
@ -243,10 +249,13 @@ cairo_perf_run (cairo_perf_t *perf,
if (similar)
cairo_push_group_with_content (perf->cr,
cairo_boilerplate_content (perf->target->content));
else
cairo_save (perf->cr);
times[i] = perf_func (perf->cr, perf->size, perf->size, loops) / loops;
if (similar)
cairo_pattern_destroy (cairo_pop_group (perf->cr));
else
cairo_restore (perf->cr);
if (perf->raw) {
if (i == 0)
printf ("[*] %s.%s %s.%d %g",