test: Add radial-perf-test, a microbenchmark for radial gradients

This benchmark renders one of the radial gradients used in the
swfdec-youtube cairo trace 500 times and reports the average time it
took.

V2: Update .gitignore

diff --git a/.gitignore b/.gitignore
index 584253b..0f11496 100644 (file)
--- a/.gitignore
+++ b/.gitignore
@@ -67,6 +67,7 @@ test/lowlevel-blt-bench
 test/oob-test
 test/pdf-op-test
 test/prng-test
+test/radial-perf-test
 test/region-contains-test
 test/region-test
 test/region-translate

diff --git a/test/Makefile.sources b/test/Makefile.sources
index 5b30970..b5fc740 100644 (file)
--- a/test/Makefile.sources
+++ b/test/Makefile.sources
@@ -28,9 +28,10 @@ TESTPROGRAMS =                       \
        composite               \
        $(NULL)
 
-# Benchmarks
+# Other programs
 OTHERPROGRAMS =                 \
        lowlevel-blt-bench      \
+       radial-perf-test        \
         check-formats           \
        $(NULL)
 

diff --git a/test/radial-perf-test.c b/test/radial-perf-test.c
new file mode 100644 (file)
index 0000000..71092e2
--- /dev/null
+++ b/test/radial-perf-test.c
@@ -0,0 +1,58 @@
+#include "utils.h"
+#include <stdio.h>
+
+int
+main ()
+{
+    static const pixman_point_fixed_t inner = { 0x0000, 0x0000 };
+    static const pixman_point_fixed_t outer = { 0x0000, 0x0000 };
+    static const pixman_fixed_t r_inner = 0;
+    static const pixman_fixed_t r_outer = 64 << 16;
+    static const pixman_gradient_stop_t stops[] = {
+       { 0x00000, { 0x6666, 0x6666, 0x6666, 0xffff } },
+       { 0x10000, { 0x0000, 0x0000, 0x0000, 0xffff } }
+    };
+    static const pixman_transform_t transform = {
+       { { 0x0,        0x26ee, 0x0}, 
+         { 0xffffeeef, 0x0,    0x0}, 
+         { 0x0,        0x0,    0x10000}
+       }
+    };
+    static const pixman_color_t z = { 0x0000, 0x0000, 0x0000, 0x0000 };
+    pixman_image_t *dest, *radial, *zero;
+    int i;
+    double before, after;
+
+    dest = pixman_image_create_bits (
+       PIXMAN_x8r8g8b8, 640, 429, NULL, -1);
+    zero = pixman_image_create_solid_fill (&z);
+    radial = pixman_image_create_radial_gradient (
+       &inner, &outer, r_inner, r_outer, stops, ARRAY_LENGTH (stops));
+    pixman_image_set_transform (radial, &transform);
+    pixman_image_set_repeat (radial, PIXMAN_REPEAT_PAD);
+
+#define N_COMPOSITE    500
+
+    before = gettime();
+    for (i = 0; i < N_COMPOSITE; ++i)
+    {
+       before -= gettime();
+
+       pixman_image_composite (
+           PIXMAN_OP_SRC, zero, NULL, dest,
+           0, 0, 0, 0, 0, 0, 640, 429);
+
+       before += gettime();
+
+       pixman_image_composite32 (
+           PIXMAN_OP_OVER, radial, NULL, dest,
+           - 150, -158, 0, 0, 0, 0, 640, 361);
+    }
+
+    after = gettime();
+
+    write_png (dest, "radial.png");
+
+    printf ("Average time to composite: %f\n", (after - before) / N_COMPOSITE);
+    return 0;
+}