1e6ec66330
This adds a conformance test which renders a rectangle texture using the two wrap modes clamp-to-edge and repeat. It then verifies that the correct region of the texture is drawn for the texture coordinates that are > 1.0. The test currently always fails. The cogl_framebuffer_draw_rectangle function is documented to always take normalized texture coordinates regardless of the coordinate system of the texture. This works correctly if all of the texture coordinates are in the range [0.0,1.0] because cogl-primitives uses a different code path in that case. However if the multiple-quad code path is taken then the coordinates actually need to un-normalized for it to work. There is a comment in cogl_meta_texture_foreach_in_region() which implies that the incoming coordinates should always be normalized. The documentation for the callback says that the resulting sub-texture coordinates will always be in the coordinate system of the low-level texture. However it doesn't work out like this because the meta texture function uses the span iterating function which always returns normalized coordinates. It looks like there needs to be some more conversions going on somewhere. Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit d2059bb32b8015060e10f41dbbb68d4230b47ddb)
123 lines
3.9 KiB
C
123 lines
3.9 KiB
C
#ifndef _TEST_UTILS_H_
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#define _TEST_UTILS_H_
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#include <glib.h>
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/* We don't really care about functions that are defined without a
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header for the unit tests so we can just disable it here */
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#ifdef __GNUC__
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#pragma GCC diagnostic ignored "-Wmissing-declarations"
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#endif
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typedef enum _TestFlags
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{
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TEST_KNOWN_FAILURE = 1<<0,
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TEST_REQUIREMENT_GL = 1<<1,
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TEST_REQUIREMENT_NPOT = 1<<2,
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TEST_REQUIREMENT_TEXTURE_3D = 1<<3,
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TEST_REQUIREMENT_TEXTURE_RECTANGLE = 1<<4,
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TEST_REQUIREMENT_POINT_SPRITE = 1<<5,
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TEST_REQUIREMENT_GLES2_CONTEXT = 1<<6,
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TEST_REQUIREMENT_MAP_WRITE = 1<<7,
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TEST_REQUIREMENT_GLSL = 1<<8
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} TestFlags;
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extern CoglContext *test_ctx;
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extern CoglFramebuffer *test_fb;
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void
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test_utils_init (TestFlags requirement_flags,
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TestFlags known_failure_flags);
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void
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test_utils_fini (void);
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/*
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* test_utils_check_pixel:
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* @framebuffer: The #CoglFramebuffer to read from
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* @x: x co-ordinate of the pixel to test
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* @y: y co-ordinate of the pixel to test
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* @pixel: An integer of the form 0xRRGGBBAA representing the expected
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* pixel value
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*
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* This performs reads a pixel on the given cogl @framebuffer and
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* asserts that it matches the given color. The alpha channel of the
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* color is ignored. The pixels are converted to a string and compared
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* with g_assert_cmpstr so that if the comparison fails then the
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* assert will display a meaningful message
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*/
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void
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test_utils_check_pixel (CoglFramebuffer *framebuffer,
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int x, int y, uint32_t expected_pixel);
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/*
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* test_utils_check_pixel:
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* @framebuffer: The #CoglFramebuffer to read from
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* @x: x co-ordinate of the pixel to test
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* @y: y co-ordinate of the pixel to test
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* @pixel: An integer of the form 0xrrggbb representing the expected pixel value
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*
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* This performs reads a pixel on the given cogl @framebuffer and
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* asserts that it matches the given color. The alpha channel of the
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* color is ignored. The pixels are converted to a string and compared
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* with g_assert_cmpstr so that if the comparison fails then the
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* assert will display a meaningful message
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*/
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void
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test_utils_check_pixel_rgb (CoglFramebuffer *framebuffer,
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int x, int y, int r, int g, int b);
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/*
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* test_utils_check_region:
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* @framebuffer: The #CoglFramebuffer to read from
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* @x: x co-ordinate of the region to test
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* @y: y co-ordinate of the region to test
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* @width: width of the region to test
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* @height: height of the region to test
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* @pixel: An integer of the form 0xrrggbb representing the expected region color
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*
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* Performs a read pixel on the specified region of the given cogl
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* @framebuffer and asserts that it matches the given color. The alpha
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* channel of the color is ignored. The pixels are converted to a
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* string and compared with g_assert_cmpstr so that if the comparison
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* fails then the assert will display a meaningful message
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*/
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void
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test_utils_check_region (CoglFramebuffer *framebuffer,
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int x, int y,
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int width, int height,
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uint32_t expected_rgba);
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/*
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* test_utils_compare_pixel:
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* @screen_pixel: A pixel stored in memory
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* @expected_pixel: The expected RGBA value
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*
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* Compares a pixel from a buffer to an expected value. The pixels are
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* converted to a string and compared with g_assert_cmpstr so that if
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* the comparison fails then the assert will display a meaningful
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* message.
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*/
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void
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test_utils_compare_pixel (const uint8_t *screen_pixel, uint32_t expected_pixel);
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/*
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* test_utils_create_color_texture:
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* @context: A #CoglContext
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* @color: A color to put in the texture
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*
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* Creates a 1x1-pixel RGBA texture filled with the given color.
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*/
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CoglTexture *
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test_utils_create_color_texture (CoglContext *context,
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uint32_t color);
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/* cogl_test_verbose:
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*
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* Queries if the user asked for verbose output or not.
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*/
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CoglBool
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cogl_test_verbose (void);
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#endif /* _TEST_UTILS_H_ */
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