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Taskbar: thumbnails (optimizations)

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This commit is contained in:
o9000 2017-11-15 11:44:35 +01:00
parent 1b6fd91611
commit 2fe7efd4fe
3 changed files with 15 additions and 10 deletions
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2
src/taskbar/task.c
View file

@ -630,7 +630,7 @@ void task_refresh_thumbnail(Task *task)
if (now - task->thumbnail_last_update < 0.1)
return;
fprintf(stderr, "tint2: thumbnail for window: %s" RESET "\n", task->title ? task->title : "");
cairo_surface_t *thumbnail = get_window_thumbnail(task->win, panel_config.g_task.thumbnail_width, task->current_state == TASK_ACTIVE);
cairo_surface_t *thumbnail = get_window_thumbnail(task->win, panel_config.g_task.thumbnail_width);
if (!thumbnail)
return;
if (task->thumbnail)

21
src/util/window.c
View file

@ -414,26 +414,26 @@ cairo_surface_t *screenshot(Window win, size_t size)
(unsigned)wa.width,
(unsigned)wa.height);
if (!ximg) {
fprintf(stderr, "tint2: !ximg\n");
fprintf(stderr, RED "tint2: !ximg" RESET "\n");
goto err0;
}
shminfo.shmid = shmget(IPC_PRIVATE, (size_t)(ximg->bytes_per_line * ximg->height), IPC_CREAT | 0777);
if (shminfo.shmid < 0) {
fprintf(stderr, "tint2: !shmget\n");
fprintf(stderr, RED "tint2: !shmget" RESET "\n");
goto err1;
}
shminfo.shmaddr = ximg->data = (char *)shmat(shminfo.shmid, 0, 0);
if (!shminfo.shmaddr) {
fprintf(stderr, "tint2: !shmat\n");
fprintf(stderr, RED "tint2: !shmat" RESET "\n");
goto err2;
}
shminfo.readOnly = False;
if (!XShmAttach(server.display, &shminfo)) {
fprintf(stderr, "tint2: !xshmattach\n");
fprintf(stderr, RED "tint2: !xshmattach" RESET "\n");
goto err3;
}
if (!XShmGetImage(server.display, win, ximg, 0, 0, AllPlanes)) {
fprintf(stderr, "tint2: !xshmgetimage\n");
fprintf(stderr, RED "tint2: !xshmgetimage" RESET "\n");
goto err4;
}
@ -569,25 +569,30 @@ gboolean cairo_surface_is_blank(cairo_surface_t *image_surface)
return empty;
}
cairo_surface_t *get_window_thumbnail(Window win, int size, gboolean active)
cairo_surface_t *get_window_thumbnail(Window win, int size)
{
cairo_surface_t *image_surface = NULL;
if (server.has_shm && server.composite_manager) {
image_surface = screenshot(win, (size_t)size);
if (cairo_surface_is_blank(image_surface)) {
if (image_surface && cairo_surface_is_blank(image_surface)) {
cairo_surface_destroy(image_surface);
image_surface = NULL;
}
if (!image_surface)
fprintf(stderr, YELLOW "tint2: thumbnail fast path failed, trying slow path" RESET "\n");
}
if (!image_surface) {
image_surface = get_window_thumbnail_cairo(win, size);
if (cairo_surface_is_blank(image_surface)) {
if (image_surface && cairo_surface_is_blank(image_surface)) {
cairo_surface_destroy(image_surface);
image_surface = NULL;
}
if (!image_surface)
fprintf(stderr, YELLOW "tint2: thumbnail slow path failed" RESET "\n");
}
if (!image_surface)
return NULL;

2
src/util/window.h
View file

@ -34,6 +34,6 @@ int get_icon_count(gulong *data, int num);
gulong *get_best_icon(gulong *data, int icon_count, int num, int *iw, int *ih, int best_icon_size);
char *get_window_name(Window win);
cairo_surface_t *get_window_thumbnail(Window win, int size, gboolean active);
cairo_surface_t *get_window_thumbnail(Window win, int size);
#endif