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demos/gears: Add a gears demo.

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This commit is contained in:
Henri Verbeet
2016-11-02 14:56:13 +01:00
parent cd4f4a2976
commit 20508aee7c
11 changed files with 1115 additions and 9 deletions
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26
demos/demo_xcb.h
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@@ -41,6 +41,9 @@ struct demo
struct demo_window **windows;
size_t windows_size;
size_t window_count;
void *user_data;
void (*idle_func)(struct demo *demo, void *user_data);
};
struct demo_window
@@ -207,8 +210,19 @@ static inline void demo_process_events(struct demo *demo)
xcb_flush(demo->connection);
while (demo->window_count && (event = xcb_wait_for_event(demo->connection)))
while (demo->window_count)
{
if (!demo->idle_func)
{
if (!(event = xcb_wait_for_event(demo->connection)))
break;
}
else if (!(event = xcb_poll_for_event(demo->connection)))
{
demo->idle_func(demo, demo->user_data);
continue;
}
switch (XCB_EVENT_RESPONSE_TYPE(event))
{
case XCB_EXPOSE:
@@ -238,7 +252,7 @@ static inline void demo_process_events(struct demo *demo)
}
}
static inline bool demo_init(struct demo *demo)
static inline bool demo_init(struct demo *demo, void *user_data)
{
if (!(demo->connection = xcb_connect(NULL, NULL)))
return false;
@@ -254,6 +268,8 @@ static inline bool demo_init(struct demo *demo)
demo->windows = NULL;
demo->windows_size = 0;
demo->window_count = 0;
demo->user_data = user_data;
demo->idle_func = NULL;
return true;
@@ -269,6 +285,12 @@ static inline void demo_cleanup(struct demo *demo)
xcb_disconnect(demo->connection);
}
static inline void demo_set_idle_func(struct demo *demo,
void (*idle_func)(struct demo *demo, void *user_data))
{
demo->idle_func = idle_func;
}
static inline DXGI_FORMAT demo_get_srgb_format(DXGI_FORMAT format)
{
switch (format)