52811b240f
The fog and perspective API is currently split in two parts: - the floating point version, using values - the fixed point version, using structures The relative properties are using the structure types, since they are meant to set multiple values at the same time. Instead of using bare values, the whole API should be coalesced into two simple calls using structures to match the GObject properties. Thus: clutter_stage_set_fog (ClutterStage*, const ClutterFog*) clutter_stage_get_fog (ClutterStage*, ClutterFog*) clutter_stage_set_perspective (ClutterStage*, const ClutterPerspective*) clutter_stage_get_perspective (ClutterStage*, ClutterPerspective*) Which supercedes the fixed point and floating point variants. More importantly, both ClutterFog and ClutterPerspective should using floating point values, since that's what get passed to COGL anyway. ClutterFog should also drop the "density" member, since ClutterStage only allows linear fog; non-linear fog distribution can be achieved using a signal handler and calling cogl_set_fog() directly; this keeps the API compact yet extensible. Finally, there is no ClutterStage:fog so it should be added.
101 lines
3.1 KiB
C
101 lines
3.1 KiB
C
#include <stdlib.h>
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#include <gmodule.h>
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#include <clutter/clutter.h>
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/* each time the timeline animating the label completes, swap the direction */
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static void
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timeline_completed (ClutterTimeline *timeline,
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gpointer user_data)
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{
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clutter_timeline_set_direction (timeline,
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!clutter_timeline_get_direction (timeline));
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clutter_timeline_start (timeline);
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}
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static gboolean
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change_filter (gpointer actor)
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{
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ClutterTextureQuality old_quality;
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old_quality = clutter_texture_get_filter_quality (actor);
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switch (old_quality)
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{
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case CLUTTER_TEXTURE_QUALITY_LOW:
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clutter_texture_set_filter_quality (actor,
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CLUTTER_TEXTURE_QUALITY_MEDIUM);
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g_print ("Setting texture rendering quality to medium\n");
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break;
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case CLUTTER_TEXTURE_QUALITY_MEDIUM:
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clutter_texture_set_filter_quality (actor,
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CLUTTER_TEXTURE_QUALITY_HIGH);
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g_print ("Setting texture rendering quality to high\n");
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break;
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case CLUTTER_TEXTURE_QUALITY_HIGH:
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clutter_texture_set_filter_quality (actor,
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CLUTTER_TEXTURE_QUALITY_LOW);
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g_print ("Setting texture rendering quality to low\n");
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break;
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}
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return TRUE;
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}
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G_MODULE_EXPORT gint
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test_texture_quality_main (int argc, char *argv[])
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{
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ClutterTimeline *timeline;
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ClutterAlpha *alpha;
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ClutterBehaviour *depth_behavior;
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ClutterActor *stage;
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ClutterActor *image;
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ClutterColor stage_color = { 0x12, 0x34, 0x56, 0xff };
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ClutterFog stage_fog = { 10.0, -50.0 };
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GError *error;
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clutter_init (&argc, &argv);
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stage = clutter_stage_get_default ();
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clutter_stage_set_color (CLUTTER_STAGE (stage), &stage_color);
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clutter_stage_set_use_fog (CLUTTER_STAGE (stage), TRUE);
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clutter_stage_set_fog (CLUTTER_STAGE (stage), &stage_fog);
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g_signal_connect (stage,
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"button-press-event", G_CALLBACK (clutter_main_quit),
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NULL);
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error = NULL;
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image = clutter_texture_new_from_file (argv[1]?argv[1]:"redhand.png", &error);
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if (error)
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g_error ("Unable to load image: %s", error->message);
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if (!argv[1])
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g_print ("Hint: the redhand.png isn't a good test image for this test.\n"
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"This test can take any clutter loadable image as an argument\n");
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/* center the image */
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clutter_actor_set_position (image,
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(clutter_actor_get_width (stage) - clutter_actor_get_width (image))/2,
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(clutter_actor_get_height (stage) - clutter_actor_get_height (image))/2);
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clutter_container_add (CLUTTER_CONTAINER (stage), image, NULL);
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timeline = clutter_timeline_new (60*5, 60);
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g_signal_connect (timeline,
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"completed", G_CALLBACK (timeline_completed),
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NULL);
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alpha = clutter_alpha_new_full (timeline, CLUTTER_LINEAR);
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depth_behavior = clutter_behaviour_depth_new (alpha, -2500, 400);
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clutter_behaviour_apply (depth_behavior, image);
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clutter_actor_show (stage);
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clutter_timeline_start (timeline);
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g_timeout_add (10000, change_filter, image);
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clutter_main ();
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g_object_unref (depth_behavior);
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g_object_unref (timeline);
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return EXIT_SUCCESS;
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}
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