static CGSSurfaceID attach_gl_context_to_window(CGLContextObj glCtx,
CGSWindowID wid, int *width, int *height)
{
CFArrayRef wins;
CFDictionaryRef win, bnd;
GLint params = 0;
Float64 w = 0, h = 0;
CGSSurfaceID sid = 0;
CGSConnectionID cid = CGSMainConnectionID();
printf("cid:%d wid:%d\n", cid, wid);
/* determine window size */
/* FIXME/TODO - CGWindowListCopyWindowInfo was introduced on OSX 10.5,
* find alternative for lower versions. */
wins = CGWindowListCopyWindowInfo(kCGWindowListOptionIncludingWindow, wid); /* expect one result only */
win = (CFDictionaryRef)CFArrayGetValueAtIndex(wins, 0);
bnd = (CFDictionaryRef)CFDictionaryGetValue(win, kCGWindowBounds);
CFNumberGetValue((CFNumberRef)CFDictionaryGetValue((CFDictionaryRef)bnd, CFSTR("Width")),
kCFNumberFloat64Type, &w);
CFNumberGetValue((CFNumberRef)CFDictionaryGetValue(bnd, CFSTR("Height")),
kCFNumberFloat64Type, &h);
CFRelease(wins);
/* create a surface. */
if(CGSAddSurface(cid, wid, &sid) != kCGErrorSuccess)
{
printf("ERR: no surface\n");
}
printf("sid:%d\n", sid);
/* set surface size, and order it frontmost */
if(CGSSetSurfaceBounds(cid, wid, sid, CGRectMake(0, 0, w, h)) != kCGErrorSuccess)
printf("ERR: cant set bounds\n");
if(CGSOrderSurface(cid, wid, sid, 1, 0) != kCGErrorSuccess)
printf("ERR: cant order front\n");
/* attach context to the surface */
if(CGLSetSurface(glCtx, cid, wid, sid) != kCGErrorSuccess)
{
printf("ERR: cant set surface\n");
}
/* check drawable */
CGLGetParameter(glCtx, kCGLCPHasDrawable, ¶ms);
if(params != 1)
{
printf("ERR: no drawable\n");
}
*width = (int)w;
*height = (int)h;
return sid;
}
block_t *screen_Capture(demux_t *p_demux)
{
demux_sys_t *p_sys = p_demux->p_sys;
screen_data_t *p_data = (screen_data_t *)p_sys->p_data;
block_t *p_block;
CGRect capture_rect;
CGImageRef image;
/* forward cursor location */
CGPoint cursor_pos;
CGEventRef event = CGEventCreate(NULL);
cursor_pos = CGEventGetLocation(event);
CFRelease(event);
cursor_pos.x -= p_data->screen_left;
cursor_pos.y -= p_data->screen_top;
if (p_sys->b_follow_mouse)
FollowMouse(p_sys, cursor_pos.x, cursor_pos.y);
capture_rect.origin.x = p_sys->i_left;
capture_rect.origin.y = p_sys->i_top;
capture_rect.size.width = p_data->width;
capture_rect.size.height = p_data->height;
/* fetch image data */
image = CGDisplayCreateImageForRect(p_data->display_id, capture_rect);
if (!image) {
msg_Warn(p_demux, "no image!");
return NULL;
}
/* create offscreen context */
if (!p_data->offscreen_context) {
CGColorSpaceRef colorspace;
colorspace = CGColorSpaceCreateWithName(kCGColorSpaceGenericRGB);
p_data->offscreen_bitmap_size = p_sys->fmt.video.i_width * p_sys->fmt.video.i_height * 4;
p_data->offscreen_bitmap = calloc(1, p_data->offscreen_bitmap_size);
if (p_data->offscreen_bitmap == NULL) {
msg_Warn(p_demux, "can't allocate offscreen bitmap");
CFRelease(image);
return NULL;
}
p_data->offscreen_context = CGBitmapContextCreate(p_data->offscreen_bitmap, p_sys->fmt.video.i_width, p_sys->fmt.video.i_height, 8, p_sys->fmt.video.i_width * 4, colorspace, kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Little);
if (!p_data->offscreen_context) {
msg_Warn(p_demux, "can't create offscreen bitmap context");
CFRelease(image);
return NULL;
}
CGColorSpaceRelease(colorspace);
p_data->offscreen_rect = CGRectMake(0, 0, p_sys->fmt.video.i_width, p_sys->fmt.video.i_height);
}
/* fetch cursor image */
CGImageRef cursor_image;
int cid = CGSMainConnectionID();
CGPoint outHotSpot;
cursor_image = CGSCreateRegisteredCursorImage(cid, (char *)"com.apple.coregraphics.GlobalCurrent", &outHotSpot);
/* draw screen image and cursor image */
CGRect cursor_rect;
cursor_rect.size.width = CGImageGetWidth(cursor_image);
cursor_rect.size.height = CGImageGetHeight(cursor_image);
cursor_rect.origin.x = cursor_pos.x - p_sys->i_left - outHotSpot.x;
cursor_rect.origin.y = p_data->offscreen_rect.size.height
- (cursor_pos.y + cursor_rect.size.height - p_sys->i_top - outHotSpot.y);
CGContextDrawImage(p_data->offscreen_context, p_data->offscreen_rect, image);
CGContextDrawImage(p_data->offscreen_context, cursor_rect, cursor_image);
/* build block */
p_block = block_Alloc(p_data->offscreen_bitmap_size);
if (!p_block) {
msg_Warn(p_demux, "can't get block");
CFRelease(image);
return NULL;
}
memmove(p_block->p_buffer, p_data->offscreen_bitmap, p_data->offscreen_bitmap_size);
CFRelease(image);
return p_block;
}
int main(int argc, const char *argv[]) {
const char *levels[] = {"Base", "Minimum", "Desktop", "Backstop", "Normal", "Floating", "TornOffMenu", "Dock", "MainMenu", "Status", "ModalPanel", "PopUpMenu", "Dragging", "ScreenSaver", "Maximum", "Overlay", "Help", "Utility", "DesktopIcon", "Cursor", "AssistiveTechHigh"};
if (argc < 2) {
usage:
fprintf(stderr, "usage: %s [-s <level>] <wid>\n"
"Levels: Base Minimum Desktop Backstop Normal Floating TornOffMenu Dock MainMenu Status ModalPanel PopUpMenu Dragging ScreenSaver Maximum Overlay Help Utility DesktopIcon Cursor AssistiveTechHigh\n"
, argv[0]);
return 1;
}
CGSConnectionID cid = CGSMainConnectionID();
// CGSWindowID wid = (int)strtol(argv[1], NULL, 10);
#if 0
CGSConnectionID owner = 0;
CGSSharingState sh;
if (!((CGSGetWindowOwner(cid, wid, &owner) == 0 && owner == cid) || (CGSGetWindowSharingState(cid, wid, &sh) == 0 && sh == kCGSSharingReadWrite))) {
#endif
size_t len = 0;
struct kinfo_proc *r = NULL;
int name[] = { CTL_KERN, KERN_PROC, KERN_PROC_ALL, 0 };
if (sysctl(name, 3, NULL, &len, NULL, 0) || ((r = malloc(len)) == NULL) || sysctl(name, 3, r, &len, NULL, 0))
err(1, NULL);
size_t c = len / sizeof(struct kinfo_proc);
struct kinfo_proc *k = r;
while (c--) {
if (strcmp(k->kp_proc.p_comm, "Dock") == 0)
kill(k->kp_proc.p_pid, SIGKILL);
k++;
}
#if 0
}
#endif
CGSSetUniversalOwner(cid);
CGWindowLevel level = 0;
if ((strcmp(argv[1], "-s") == 0) && (argc > 3)) {
char *endptr;
level = (int)strtol(argv[2], &endptr, 10);
if (endptr == argv[2]) {
unsigned int i = 0;
do {
if (strcasecmp(argv[2], levels[i]) == 0) {
level = CGWindowLevelForKey(i);
break;
}
i += 1;
} while (i < sizeof(levels)/sizeof(levels[0]));
if (i == sizeof(levels)/sizeof(levels[0])) {
fprintf(stderr, "%s: Unknown level\n", argv[2]);
goto usage;
}
}
for (int i = 3; i < argc; i++) {
if (CGSSetWindowLevel(cid, (CGSWindowID)strtol(argv[i], NULL, 10), level) != noErr)
warnx("%d: failed", argv[i]);
}
} else {
for (int j = 1; j < argc; j++) {
CGSGetWindowLevel(cid, (CGSWindowID)strtol(argv[j], NULL, 10), &level);
unsigned int i = 0;
do { // todo: option to just print number
if (level == CGWindowLevelForKey(i)) {
puts(levels[i]);
break;
}
} while (++i < sizeof(levels)/sizeof(levels[0]));
// TODO: if multiple wids, format |wid: level|
if (i == sizeof(levels)/sizeof(levels[0]))
printf("%d\n", level);
}
}
return 0;
}