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-rw-r--r--pixman/test/combiner-test.c151
1 files changed, 151 insertions, 0 deletions
diff --git a/pixman/test/combiner-test.c b/pixman/test/combiner-test.c
new file mode 100644
index 000000000..c438ae62e
--- /dev/null
+++ b/pixman/test/combiner-test.c
@@ -0,0 +1,151 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include "utils.h"
+#include <sys/types.h>
+#include "pixman-private.h"
+
+static const pixman_op_t op_list[] =
+{
+ PIXMAN_OP_SRC,
+ PIXMAN_OP_OVER,
+ PIXMAN_OP_ADD,
+ PIXMAN_OP_CLEAR,
+ PIXMAN_OP_SRC,
+ PIXMAN_OP_DST,
+ PIXMAN_OP_OVER,
+ PIXMAN_OP_OVER_REVERSE,
+ PIXMAN_OP_IN,
+ PIXMAN_OP_IN_REVERSE,
+ PIXMAN_OP_OUT,
+ PIXMAN_OP_OUT_REVERSE,
+ PIXMAN_OP_ATOP,
+ PIXMAN_OP_ATOP_REVERSE,
+ PIXMAN_OP_XOR,
+ PIXMAN_OP_ADD,
+ PIXMAN_OP_SATURATE,
+ PIXMAN_OP_DISJOINT_CLEAR,
+ PIXMAN_OP_DISJOINT_SRC,
+ PIXMAN_OP_DISJOINT_DST,
+ PIXMAN_OP_DISJOINT_OVER,
+ PIXMAN_OP_DISJOINT_OVER_REVERSE,
+ PIXMAN_OP_DISJOINT_IN,
+ PIXMAN_OP_DISJOINT_IN_REVERSE,
+ PIXMAN_OP_DISJOINT_OUT,
+ PIXMAN_OP_DISJOINT_OUT_REVERSE,
+ PIXMAN_OP_DISJOINT_ATOP,
+ PIXMAN_OP_DISJOINT_ATOP_REVERSE,
+ PIXMAN_OP_DISJOINT_XOR,
+ PIXMAN_OP_CONJOINT_CLEAR,
+ PIXMAN_OP_CONJOINT_SRC,
+ PIXMAN_OP_CONJOINT_DST,
+ PIXMAN_OP_CONJOINT_OVER,
+ PIXMAN_OP_CONJOINT_OVER_REVERSE,
+ PIXMAN_OP_CONJOINT_IN,
+ PIXMAN_OP_CONJOINT_IN_REVERSE,
+ PIXMAN_OP_CONJOINT_OUT,
+ PIXMAN_OP_CONJOINT_OUT_REVERSE,
+ PIXMAN_OP_CONJOINT_ATOP,
+ PIXMAN_OP_CONJOINT_ATOP_REVERSE,
+ PIXMAN_OP_CONJOINT_XOR,
+ PIXMAN_OP_MULTIPLY,
+ PIXMAN_OP_SCREEN,
+ PIXMAN_OP_OVERLAY,
+ PIXMAN_OP_DARKEN,
+ PIXMAN_OP_LIGHTEN,
+ PIXMAN_OP_COLOR_DODGE,
+ PIXMAN_OP_COLOR_BURN,
+ PIXMAN_OP_HARD_LIGHT,
+ PIXMAN_OP_DIFFERENCE,
+ PIXMAN_OP_EXCLUSION,
+ PIXMAN_OP_SOFT_LIGHT,
+ PIXMAN_OP_HSL_HUE,
+ PIXMAN_OP_HSL_SATURATION,
+ PIXMAN_OP_HSL_COLOR,
+ PIXMAN_OP_HSL_LUMINOSITY,
+};
+
+static float
+rand_float (void)
+{
+ uint32_t u = lcg_rand_u32();
+
+ return *(float *)&u;
+}
+
+static void
+random_floats (argb_t *argb, int width)
+{
+ int i;
+
+ for (i = 0; i < width; ++i)
+ {
+ argb_t *p = argb + i;
+
+ p->a = rand_float();
+ p->r = rand_float();
+ p->g = rand_float();
+ p->b = rand_float();
+ }
+}
+
+#define WIDTH 512
+
+static pixman_combine_float_func_t
+lookup_combiner (pixman_implementation_t *imp, pixman_op_t op,
+ pixman_bool_t component_alpha)
+{
+ pixman_combine_float_func_t f;
+
+ do
+ {
+ if (component_alpha)
+ f = imp->combine_float_ca[op];
+ else
+ f = imp->combine_float[op];
+
+ imp = imp->fallback;
+ }
+ while (!f);
+
+ return f;
+}
+
+int
+main ()
+{
+ pixman_implementation_t *impl;
+ argb_t *src_bytes = malloc (WIDTH * sizeof (argb_t));
+ argb_t *mask_bytes = malloc (WIDTH * sizeof (argb_t));
+ argb_t *dest_bytes = malloc (WIDTH * sizeof (argb_t));
+ int i;
+
+ enable_divbyzero_exceptions();
+
+ impl = _pixman_internal_only_get_implementation();
+
+ lcg_srand (0);
+
+ for (i = 0; i < ARRAY_LENGTH (op_list); ++i)
+ {
+ pixman_op_t op = op_list[i];
+ pixman_combine_float_func_t combiner;
+ int ca;
+
+ for (ca = 0; ca < 2; ++ca)
+ {
+ combiner = lookup_combiner (impl, op, ca);
+
+ random_floats (src_bytes, WIDTH);
+ random_floats (mask_bytes, WIDTH);
+ random_floats (dest_bytes, WIDTH);
+
+ combiner (impl, op,
+ (float *)dest_bytes,
+ (float *)mask_bytes,
+ (float *)src_bytes,
+ WIDTH);
+ }
+ }
+
+ return 0;
+}