examples/cogl-texture-pixmap-x11: Add a --stereo command line option
If --stereo is passed, then the texture pixmap is created as a stereo texture pixmap, and also, if passed in conjunction with --gears, glxgears is also run with the -stereo option. Reviewed-by: Robert Bragg <robert.bragg@intel.com>
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@ -27,12 +27,13 @@
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static pid_t gears_pid = 0;
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static void
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spawn_gears (void)
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spawn_gears (CoglBool stereo)
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{
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pid_t pid = fork();
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if (pid == 0)
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execlp ("glxgears", "glxgears",
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stereo ? "-stereo" : NULL,
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NULL);
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gears_pid = pid;
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@ -142,10 +143,11 @@ main (int argc, char **argv)
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Atom atom_wm_delete_window;
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int screen;
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CoglBool gears = FALSE;
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CoglBool stereo = FALSE;
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Window tfp_xwin = None;
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Pixmap pixmap;
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CoglTexturePixmapX11 *tfp;
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CoglTexture *right_texture;
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CoglTexture *right_texture = NULL;
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GC gc = None;
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int i;
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@ -153,9 +155,11 @@ main (int argc, char **argv)
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{
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if (strcmp (argv[i], "--gears") == 0)
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gears = TRUE;
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else if (strcmp (argv[i], "--stereo") == 0)
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stereo = TRUE;
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else
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{
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g_printerr ("Usage: cogl-x11-tfp [--gears]\n");
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g_printerr ("Usage: cogl-x11-tfp [--gears] [--stereo]\n");
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return 1;
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}
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}
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@ -187,7 +191,7 @@ main (int argc, char **argv)
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if (gears)
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{
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spawn_gears ();
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spawn_gears (stereo);
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while (TRUE)
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{
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tfp_xwin = find_gears_toplevel (xdpy, None);
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@ -209,7 +213,8 @@ main (int argc, char **argv)
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/* Request that onscreen framebuffers should have an alpha component */
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onscreen_template = cogl_onscreen_template_new ();
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cogl_onscreen_template_set_has_alpha (onscreen_template, TRUE);
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if (stereo)
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cogl_onscreen_template_set_stereo_enabled (onscreen_template, TRUE);
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/* Give Cogl our template for onscreen windows which can influence
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* how the context will be setup */
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@ -310,7 +315,17 @@ main (int argc, char **argv)
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pixmap = XCompositeNameWindowPixmap (xdpy, tfp_xwin);
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tfp = cogl_texture_pixmap_x11_new (ctx, pixmap, TRUE, &error);
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if (stereo)
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{
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tfp = cogl_texture_pixmap_x11_new_left (ctx, pixmap, TRUE, &error);
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if (tfp)
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right_texture = cogl_texture_pixmap_x11_new_right (tfp);
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}
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else
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{
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tfp = cogl_texture_pixmap_x11_new (ctx, pixmap, TRUE, &error);
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}
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if (!tfp)
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{
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fprintf (stderr, "Failed to create CoglTexturePixmapX11: %s",
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@ -359,10 +374,22 @@ main (int argc, char **argv)
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}
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cogl_framebuffer_clear4f (fb, COGL_BUFFER_BIT_COLOR, 0, 0, 0, 1);
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pipeline = cogl_pipeline_new (ctx);
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cogl_framebuffer_set_stereo_mode (onscreen, COGL_STEREO_LEFT);
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cogl_pipeline_set_layer_texture (pipeline, 0, tfp);
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cogl_framebuffer_draw_rectangle (fb, pipeline, -0.8, 0.8, 0.8, -0.8);
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if (stereo)
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{
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cogl_framebuffer_set_stereo_mode (onscreen, COGL_STEREO_RIGHT);
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cogl_pipeline_set_layer_texture (pipeline, 0, right_texture);
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cogl_framebuffer_draw_rectangle (fb, pipeline, -0.8, 0.8, 0.8, -0.8);
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}
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cogl_object_unref (pipeline);
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cogl_onscreen_swap_buffers (onscreen);
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}
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