static void
run_tests(TestState *state)
{
int i;
for(i = 0; i < C_N_ELEMENTS(tests); i++) {
cg_framebuffer_clear4f(test_fb,
CG_BUFFER_BIT_COLOR,
0, 0, 0, 1);
tests[i](state);
}
}
static void
redraw(Data *data)
{
cg_framebuffer_t *fb = data->fb;
cg_framebuffer_clear4f(fb, CG_BUFFER_BIT_COLOR, 0, 0, 0, 1);
cg_framebuffer_push_matrix(fb);
cg_framebuffer_translate(fb, data->center_x, -data->center_y, 0.0f);
cg_primitive_draw(data->triangle, fb, data->pipeline);
cg_framebuffer_pop_matrix(fb);
cg_onscreen_swap_buffers(CG_ONSCREEN(fb));
}
static void
paint (void)
{
cg_pipeline_t *pipeline = cg_pipeline_new (test_dev);
int width = cg_framebuffer_get_width (test_fb);
int half_width = width / 2;
int height = cg_framebuffer_get_height (test_fb);
cg_vertex_p2_t tri0_vertices[] = {
{ 0, 0 },
{ 0, height },
{ half_width, height },
};
cg_vertex_p2c4_t tri1_vertices[] = {
{ half_width, 0, 0x80, 0x80, 0x80, 0x80 },
{ half_width, height, 0x80, 0x80, 0x80, 0x80 },
{ width, height, 0x80, 0x80, 0x80, 0x80 },
};
cg_primitive_t *tri0;
cg_primitive_t *tri1;
cg_framebuffer_clear4f (test_fb, CG_BUFFER_BIT_COLOR, 0, 0, 0, 0);
tri0 = cg_primitive_new_p2 (test_dev, CG_VERTICES_MODE_TRIANGLES,
3, tri0_vertices);
tri1 = cg_primitive_new_p2c4 (test_dev, CG_VERTICES_MODE_TRIANGLES,
3, tri1_vertices);
/* Check that cogl correctly handles the case where we draw
* different primitives same pipeline and switch from using the
* opaque color associated with the pipeline and using a colour
* attribute with an alpha component which implies blending is
* required.
*
* If Cogl gets this wrong then then in all likelyhood the second
* primitive will be drawn with blending still disabled.
*/
cg_primitive_draw (tri0, test_fb, pipeline);
cg_primitive_draw (tri1, test_fb, pipeline);
test_cg_check_pixel_and_alpha (test_fb,
half_width + 5,
height - 5,
0x80808080);
}
static void paint_cb(uv_idle_t *idle)
{
struct demo *demo = idle->data;
unsigned int i;
update_catherine_wheel(demo);
cg_framebuffer_clear4f(demo->fb,
CG_BUFFER_BIT_COLOR | CG_BUFFER_BIT_DEPTH,
0, 0, 0, 1);
for (i = 0; i < C_N_ELEMENTS(demo->emitter); i++)
particle_emitter_paint(demo->emitter[i]);
cg_onscreen_swap_buffers(demo->fb);
uv_idle_stop(&demo->idle);
}
