Impl. canvas blending

Signed-off-by: pacien <pacien.trangirard@pacien.net>

1 files changed, 26 insertions, 3 deletions

diff --git a/test/blender/blender.c b/test/blender/blender.c
index 344ce04..9a43db0 100644
--- a/test/blender/blender.c
+++ b/test/blender/blender.c
@@ -2,14 +2,37 @@
 #include <assert.h>
 
 static void test_color_blending() {
-  Color a = {{0xFF, 0xED, 0x00, 0x00}};
-  Color b = {{0x00, 0x47, 0xAB, 0x00}};
-  Color result = blender_blend_colors(a, b, 0.125);
+  Color origin = {{0xFF, 0xED, 0x00, 0x00}};
+  Color target = {{0x00, 0x47, 0xAB, 0x00}};
+  Color result = blender_blend_colors(origin, target, 0.125);
 
   assert(color_equals(result, (Color) {{0xEE, 0xDF, 0x3C, 0x00}}));
 }
 
+static void test_canvas_blending() {
+  Morphing morphing;
+  Canvas origin, target, result;
+  CartesianVector sample_point = {13, 17};
+
+  morpher_init(&morphing, 64, 64);
+  canvas_init(&origin, 64, 64);
+  canvas_init(&target, 64, 64);
+  canvas_init(&result, 64, 64);
+
+  canvas_set_pixel(&origin, sample_point, (Color) {{0xFF, 0xED, 0x00, 0x00}});
+  canvas_set_pixel(&target, sample_point, (Color) {{0x00, 0x47, 0xAB, 0x00}});
+
+  blender_blend_canvas(&result, &origin, &target, &morphing, 0.125);
+  assert(color_equals(canvas_get_pixel(&result, sample_point), (Color) {{0xEE, 0xDF, 0x3C, 0x00}}));
+
+  canvas_free(&result);
+  canvas_free(&target);
+  canvas_free(&origin);
+  morpher_free(&morphing);
+}
+
 int main(int argc, char **argv) {
   test_color_blending();
+  test_canvas_blending();
   return 0;
 }