mirror of
https://github.com/brl/mutter.git
synced 2024-09-20 14:35:48 -04:00
db7f087953
This test wasn't actually explicitly clearing the background to black it was simply a fluke that some drivers clear the background when allocating a new framebuffer. Reviewed-by: Neil Roberts <neil@linux.intel.com>
50 lines
1.3 KiB
C
50 lines
1.3 KiB
C
#include <cogl/cogl.h>
|
|
#include <glib.h>
|
|
#include <stdio.h>
|
|
|
|
CoglColor black;
|
|
|
|
int
|
|
main (int argc, char **argv)
|
|
{
|
|
CoglContext *ctx;
|
|
CoglOnscreen *onscreen;
|
|
CoglFramebuffer *fb;
|
|
GError *error = NULL;
|
|
CoglVertexP2C4 triangle_vertices[] = {
|
|
{0, 0.7, 0xff, 0x00, 0x00, 0x80},
|
|
{-0.7, -0.7, 0x00, 0xff, 0x00, 0xff},
|
|
{0.7, -0.7, 0x00, 0x00, 0xff, 0xff}
|
|
};
|
|
CoglPrimitive *triangle;
|
|
|
|
ctx = cogl_context_new (NULL, &error);
|
|
if (!ctx) {
|
|
fprintf (stderr, "Failed to create context: %s\n", error->message);
|
|
return 1;
|
|
}
|
|
|
|
onscreen = cogl_onscreen_new (ctx, 640, 480);
|
|
/* Eventually there will be an implicit allocate on first use so this
|
|
* will become optional... */
|
|
fb = COGL_FRAMEBUFFER (onscreen);
|
|
if (!cogl_framebuffer_allocate (fb, &error)) {
|
|
fprintf (stderr, "Failed to allocate framebuffer: %s\n", error->message);
|
|
return 1;
|
|
}
|
|
|
|
cogl_onscreen_show (onscreen);
|
|
|
|
cogl_push_framebuffer (fb);
|
|
|
|
triangle = cogl_primitive_new_p2c4 (COGL_VERTICES_MODE_TRIANGLES,
|
|
3, triangle_vertices);
|
|
for (;;) {
|
|
cogl_clear (&black, COGL_BUFFER_BIT_COLOR);
|
|
cogl_primitive_draw (triangle);
|
|
cogl_framebuffer_swap_buffers (fb);
|
|
}
|
|
|
|
return 0;
|
|
}
|