mutter/tests/conform/test-framebuffer-get-bits.c

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#include <cogl/cogl.h>
#include "test-utils.h"
void
test_framebuffer_get_bits (void)
{
CoglTexture2D *tex_a =
cogl_texture_2d_new_with_size (test_ctx,
16, 16, /* width/height */
COGL_PIXEL_FORMAT_A_8);
CoglOffscreen *offscreen_a =
cogl_offscreen_new_with_texture (tex_a);
CoglFramebuffer *fb_a = offscreen_a;
CoglTexture2D *tex_rgba =
cogl_texture_2d_new_with_size (test_ctx,
16, 16, /* width/height */
COGL_PIXEL_FORMAT_RGBA_8888);
CoglOffscreen *offscreen_rgba =
cogl_offscreen_new_with_texture (tex_rgba);
CoglFramebuffer *fb_rgba = offscreen_rgba;
cogl_framebuffer_allocate (fb_a, NULL);
cogl_framebuffer_allocate (fb_rgba, NULL);
g_assert_cmpint (cogl_framebuffer_get_red_bits (fb_a), ==, 0);
g_assert_cmpint (cogl_framebuffer_get_green_bits (fb_a), ==, 0);
g_assert_cmpint (cogl_framebuffer_get_blue_bits (fb_a), ==, 0);
g_assert_cmpint (cogl_framebuffer_get_alpha_bits (fb_a), >=, 1);
g_assert_cmpint (cogl_framebuffer_get_red_bits (fb_rgba), >=, 1);
g_assert_cmpint (cogl_framebuffer_get_green_bits (fb_rgba), >=, 1);
g_assert_cmpint (cogl_framebuffer_get_blue_bits (fb_rgba), >=, 1);
g_assert_cmpint (cogl_framebuffer_get_alpha_bits (fb_rgba), >=, 1);
cogl_object_unref (fb_rgba);
cogl_object_unref (tex_rgba);
cogl_object_unref (fb_a);
cogl_object_unref (tex_a);
}