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Add a test for cogl_framebuffer_push_path_clip

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The test makes an L-shaped path that fills the whole framebuffer
except for the top right quadrant. It then clips to that and tries to
fill the framebuffer with a rectangle. Then it verifies that all of
the quadrants have the expected colour.

This is currently failing due to a bug in the primitive clipping.

Reviewed-by: Robert Bragg <robert@linux.intel.com>
(cherry picked from commit 5404033220099b4a3c6cf32a0d269c4e98489fee)
This commit is contained in:
Neil Roberts 2013-12-02 18:43:45 +00:00
parent bc41489336
commit 7f7187eaf1
3 changed files with 72 additions and 1 deletions
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4
tests/conform/Makefile.am
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@ -76,7 +76,9 @@ test_sources += test-fence.c
endif
if BUILD_COGL_PATH
test_sources += test-path.c
test_sources += \
test-path.c \
test-path-clip.c
endif
test_conformance_SOURCES = $(common_sources) $(test_sources)

1
tests/conform/test-conform-main.c
View File

@ -59,6 +59,7 @@ main (int argc, char **argv)
UNPORTED_TEST (test_readpixels);
#ifdef COGL_HAS_COGL_PATH_SUPPORT
ADD_TEST (test_path, 0, 0);
ADD_TEST (test_path_clip, 0, TEST_KNOWN_FAILURE);
#endif
ADD_TEST (test_depth_test, 0, 0);
ADD_TEST (test_color_mask, 0, 0);

68
tests/conform/test-path-clip.c Normal file
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@ -0,0 +1,68 @@
#define COGL_ENABLE_EXPERIMENTAL_2_0_API
#include <cogl/cogl.h>
#include <cogl-path/cogl-path.h>
#include <string.h>
#include "test-utils.h"
void
test_path_clip (void)
{
CoglPath *path;
CoglPipeline *pipeline;
int fb_width, fb_height;
fb_width = cogl_framebuffer_get_width (test_fb);
fb_height = cogl_framebuffer_get_height (test_fb);
cogl_framebuffer_orthographic (test_fb,
0, 0, fb_width, fb_height, -1, 100);
path = cogl_path_new ();
cogl_framebuffer_clear4f (test_fb,
COGL_BUFFER_BIT_COLOR,
1.0f, 0.0f, 0.0f, 1.0f);
/* Make an L-shape with the top right corner left untouched */
cogl_path_move_to (path, 0, fb_height);
cogl_path_line_to (path, fb_width, fb_height);
cogl_path_line_to (path, fb_width, fb_height / 2);
cogl_path_line_to (path, fb_width / 2, fb_height / 2);
cogl_path_line_to (path, fb_width / 2, 0);
cogl_path_line_to (path, 0, 0);
cogl_path_close (path);
cogl_framebuffer_push_path_clip (test_fb, path);
/* Try to fill the framebuffer with a blue rectangle. This should be
* clipped to leave the top right quadrant as is */
pipeline = cogl_pipeline_new (test_ctx);
cogl_pipeline_set_color4ub (pipeline, 0, 0, 255, 255);
cogl_framebuffer_draw_rectangle (test_fb,
pipeline,
0, 0, fb_width, fb_height);
cogl_framebuffer_pop_clip (test_fb);
cogl_object_unref (pipeline);
cogl_object_unref (path);
/* Check each of the four quadrants */
test_utils_check_pixel (test_fb,
fb_width / 4, fb_height / 4,
0x0000ffff);
test_utils_check_pixel (test_fb,
fb_width * 3 / 4, fb_height / 4,
0xff0000ff);
test_utils_check_pixel (test_fb,
fb_width / 4, fb_height * 3 / 4,
0x0000ffff);
test_utils_check_pixel (test_fb,
fb_width * 3 / 4, fb_height * 3 / 4,
0x0000ffff);
if (cogl_test_verbose ())
g_print ("OK\n");
}