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renderer: expose CoglOutputs

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This adds a cogl_renderer_foreach_output() function that can be used to
iterate the display outputs for a particular renderer.

This also updates cogl-info to use this new api so it can dump out all
the output information.

Reviewed-by: Owen W. Taylor <otaylor@fishsoup.net>

(cherry picked from commit a2abf4c4c1fd5aeafd761f965d07a0fe9a362afc)
This commit is contained in:
Robert Bragg
2013-01-21 01:18:25 +00:00
parent 88d8bd84f2
commit 013548c109
4 changed files with 108 additions and 0 deletions
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59
examples/cogl-info.c
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@ -164,6 +164,58 @@ feature_cb (CoglFeatureID feature, void *user_data)
printf (" » Unknown feature %d\n", feature);
}
typedef struct _OutputState
{
int id;
} OutputState;
static void
output_cb (CoglOutput *output, void *user_data)
{
OutputState *state = user_data;
const char *order;
float refresh;
printf (" Output%d:\n", state->id++);
printf (" » position = (%d, %d)\n",
cogl_output_get_x (output),
cogl_output_get_y (output));
printf (" » resolution = %d x %d\n",
cogl_output_get_width (output),
cogl_output_get_height (output));
printf (" » physical size = %dmm x %dmm\n",
cogl_output_get_mm_width (output),
cogl_output_get_mm_height (output));
switch (cogl_output_get_subpixel_order (output))
{
case COGL_SUBPIXEL_ORDER_UNKNOWN:
order = "unknown";
break;
case COGL_SUBPIXEL_ORDER_NONE:
order = "non-standard";
break;
case COGL_SUBPIXEL_ORDER_HORIZONTAL_RGB:
order = "horizontal,rgb";
break;
case COGL_SUBPIXEL_ORDER_HORIZONTAL_BGR:
order = "horizontal,bgr";
break;
case COGL_SUBPIXEL_ORDER_VERTICAL_RGB:
order = "vertical,rgb";
break;
case COGL_SUBPIXEL_ORDER_VERTICAL_BGR:
order = "vertical,bgr";
break;
}
printf (" » sub pixel order = %s\n", order);
refresh = cogl_output_get_refresh_rate (output);
if (refresh)
printf (" » refresh = %f Hz\n", refresh);
else
printf (" » refresh = unknown\n");
}
int
main (int argc, char **argv)
{
@ -173,6 +225,7 @@ main (int argc, char **argv)
CoglError *error = NULL;
CoglWinsysID winsys_id;
const char *winsys_name;
OutputState output_state;
ctx = cogl_context_new (NULL, &error);
if (!ctx) {
@ -189,5 +242,11 @@ main (int argc, char **argv)
g_print ("Features:\n");
cogl_foreach_feature (ctx, feature_cb, NULL);
g_print ("Outputs:\n");
output_state.id = 0;
cogl_renderer_foreach_output (renderer, output_cb, &output_state);
if (output_state.id == 0)
printf (" Unknown\n");
return 0;
}