mirror of
https://github.com/brl/mutter.git
synced 2024-12-25 20:32:16 +00:00
1317a25a91
This renames cogl_offscreen_new_to_texture to cogl_offscreen_new_with_texture. The intention is to then cherry-pick this back to the cogl-1.16 branch so we can maintain a parallel cogl_offscreen_new_to_texture() function which keeps the synchronous allocation semantics that some clutter applications are currently relying on. Reviewed-by: Neil Roberts <neil@linux.intel.com> (cherry picked from commit ecc6d2f64481626992b2fe6cdfa7b999270b28f5) Note: Since we can't break the 1.x api on this branch this keeps a thin shim around cogl_offscreen_new_with_texture to implement cogl_offscreen_new_to_texture with its synchronous allocation semantics.
117 lines
3.9 KiB
C
117 lines
3.9 KiB
C
#include <cogl/cogl.h>
|
|
#include <glib.h>
|
|
#include <stdio.h>
|
|
|
|
int
|
|
main (int argc, char **argv)
|
|
{
|
|
CoglOnscreenTemplate *onscreen_template;
|
|
CoglDisplay *display;
|
|
CoglContext *ctx;
|
|
CoglOnscreen *onscreen;
|
|
CoglFramebuffer *fb;
|
|
CoglError *error = NULL;
|
|
CoglVertexP2C4 triangle_vertices[] = {
|
|
{0, 0.7, 0xff, 0x00, 0x00, 0xff},
|
|
{-0.7, -0.7, 0x00, 0xff, 0x00, 0xff},
|
|
{0.7, -0.7, 0x00, 0x00, 0xff, 0xff}
|
|
};
|
|
CoglPrimitive *triangle;
|
|
CoglTexture *tex;
|
|
CoglOffscreen *offscreen;
|
|
CoglFramebuffer *offscreen_fb;
|
|
CoglPipeline *pipeline;
|
|
|
|
onscreen_template = cogl_onscreen_template_new (NULL);
|
|
cogl_onscreen_template_set_samples_per_pixel (onscreen_template, 4);
|
|
display = cogl_display_new (NULL, onscreen_template);
|
|
|
|
if (!cogl_display_setup (display, &error))
|
|
{
|
|
fprintf (stderr, "Platform doesn't support onscreen 4x msaa rendering: %s\n",
|
|
error->message);
|
|
return 1;
|
|
}
|
|
|
|
ctx = cogl_context_new (display, &error);
|
|
if (!ctx)
|
|
{
|
|
fprintf (stderr, "Failed to create context: %s\n", error->message);
|
|
return 1;
|
|
}
|
|
|
|
onscreen = cogl_onscreen_new (ctx, 640, 480);
|
|
fb = COGL_FRAMEBUFFER (onscreen);
|
|
|
|
cogl_framebuffer_set_samples_per_pixel (fb, 4);
|
|
|
|
if (!cogl_framebuffer_allocate (fb, &error))
|
|
{
|
|
fprintf (stderr, "Failed to allocate 4x msaa offscreen framebuffer, "
|
|
"disabling msaa for onscreen rendering: %s\n", error->message);
|
|
cogl_error_free (error);
|
|
cogl_framebuffer_set_samples_per_pixel (fb, 0);
|
|
|
|
error = NULL;
|
|
if (!cogl_framebuffer_allocate (fb, &error))
|
|
{
|
|
fprintf (stderr, "Failed to allocate framebuffer: %s\n", error->message);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
cogl_onscreen_show (onscreen);
|
|
|
|
tex = COGL_TEXTURE (cogl_texture_2d_new_with_size (ctx,
|
|
320, 480,
|
|
COGL_PIXEL_FORMAT_ANY));
|
|
offscreen = cogl_offscreen_new_with_texture (tex);
|
|
offscreen_fb = COGL_FRAMEBUFFER (offscreen);
|
|
cogl_framebuffer_set_samples_per_pixel (offscreen_fb, 4);
|
|
if (!cogl_framebuffer_allocate (offscreen_fb, &error))
|
|
{
|
|
cogl_error_free (error);
|
|
error = NULL;
|
|
fprintf (stderr, "Failed to allocate 4x msaa offscreen framebuffer, "
|
|
"disabling msaa for offscreen rendering");
|
|
cogl_framebuffer_set_samples_per_pixel (offscreen_fb, 0);
|
|
}
|
|
|
|
triangle = cogl_primitive_new_p2c4 (ctx, COGL_VERTICES_MODE_TRIANGLES,
|
|
3, triangle_vertices);
|
|
pipeline = cogl_pipeline_new (ctx);
|
|
|
|
for (;;) {
|
|
CoglPollFD *poll_fds;
|
|
int n_poll_fds;
|
|
int64_t timeout;
|
|
CoglPipeline *texture_pipeline;
|
|
|
|
cogl_framebuffer_clear4f (fb, COGL_BUFFER_BIT_COLOR, 0, 0, 0, 1);
|
|
|
|
cogl_framebuffer_push_matrix (fb);
|
|
cogl_framebuffer_scale (fb, 0.5, 1, 1);
|
|
cogl_framebuffer_translate (fb, -1, 0, 0);
|
|
cogl_primitive_draw (triangle, fb, pipeline);
|
|
cogl_framebuffer_pop_matrix (fb);
|
|
|
|
cogl_primitive_draw (triangle, fb, pipeline);
|
|
cogl_framebuffer_resolve_samples (offscreen_fb);
|
|
|
|
texture_pipeline = cogl_pipeline_new (ctx);
|
|
cogl_pipeline_set_layer_texture (texture_pipeline, 0, tex);
|
|
cogl_framebuffer_draw_rectangle (fb, texture_pipeline, 0, 1, 1, -1);
|
|
cogl_object_unref (texture_pipeline);
|
|
|
|
cogl_onscreen_swap_buffers (onscreen);
|
|
|
|
cogl_poll_renderer_get_info (cogl_context_get_renderer (ctx),
|
|
&poll_fds, &n_poll_fds, &timeout);
|
|
g_poll ((GPollFD *) poll_fds, n_poll_fds, 0);
|
|
cogl_poll_renderer_dispatch (cogl_context_get_renderer (ctx),
|
|
poll_fds, n_poll_fds);
|
|
}
|
|
|
|
return 0;
|
|
}
|