void XCompcapMain::updateSettings(obs_data_t *settings)
{
PLock lock(&p->lock);
XErrorLock xlock;
ObsGsContextHolder obsctx;
blog(LOG_DEBUG, "Settings updating");
Window prevWin = p->win;
xcc_cleanup(p);
if (settings) {
const char *windowName = obs_data_get_string(settings,
"capture_window");
p->windowName = windowName;
p->win = getWindowFromString(windowName);
p->cut_top = obs_data_get_int(settings, "cut_top");
p->cut_left = obs_data_get_int(settings, "cut_left");
p->cut_right = obs_data_get_int(settings, "cut_right");
p->cut_bot = obs_data_get_int(settings, "cut_bot");
p->lockX = obs_data_get_bool(settings, "lock_x");
p->swapRedBlue = obs_data_get_bool(settings, "swap_redblue");
p->show_cursor = obs_data_get_bool(settings, "show_cursor");
p->include_border = obs_data_get_bool(settings, "include_border");
p->exclude_alpha = obs_data_get_bool(settings, "exclude_alpha");
} else {
p->win = prevWin;
}
xlock.resetError();
if (p->win)
XCompositeRedirectWindow(xdisp, p->win,
CompositeRedirectAutomatic);
if (xlock.gotError()) {
blog(LOG_ERROR, "XCompositeRedirectWindow failed: %s",
xlock.getErrorText().c_str());
return;
}
if (p->win)
XSelectInput(xdisp, p->win, StructureNotifyMask | ExposureMask);
XSync(xdisp, 0);
XWindowAttributes attr;
if (!p->win || !XGetWindowAttributes(xdisp, p->win, &attr)) {
p->win = 0;
p->width = 0;
p->height = 0;
return;
}
if (p->win && p->cursor && p->show_cursor) {
Window child;
int x, y;
XTranslateCoordinates(xdisp, p->win, attr.root, 0, 0, &x, &y,
&child);
xcursor_offset(p->cursor, x, y);
}
gs_color_format cf = GS_RGBA;
if (p->exclude_alpha) {
cf = GS_BGRX;
}
p->border = attr.border_width;
if (p->include_border) {
p->width = attr.width + p->border * 2;
p->height = attr.height + p->border * 2;
} else {
p->width = attr.width;
p->height = attr.height;
}
if (p->cut_top + p->cut_bot < (int)p->height) {
p->cur_cut_top = p->cut_top;
p->cur_cut_bot = p->cut_bot;
} else {
p->cur_cut_top = 0;
p->cur_cut_bot = 0;
}
if (p->cut_left + p->cut_right < (int)p->width) {
p->cur_cut_left = p->cut_left;
p->cur_cut_right = p->cut_right;
} else {
p->cur_cut_left = 0;
p->cur_cut_right = 0;
}
if (p->tex)
gs_texture_destroy(p->tex);
uint8_t *texData = new uint8_t[width() * height() * 4];
memset(texData, 0, width() * height() * 4);
const uint8_t* texDataArr[] = { texData, 0 };
p->tex = gs_texture_create(width(), height(), cf, 1,
texDataArr, 0);
delete[] texData;
if (p->swapRedBlue) {
GLuint tex = *(GLuint*)gs_texture_get_obj(p->tex);
glBindTexture(GL_TEXTURE_2D, tex);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_B, GL_RED);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_R, GL_BLUE);
glBindTexture(GL_TEXTURE_2D, 0);
}
const int attrs[] =
{
GLX_BIND_TO_TEXTURE_RGBA_EXT, GL_TRUE,
GLX_DRAWABLE_TYPE, GLX_PIXMAP_BIT,
GLX_BIND_TO_TEXTURE_TARGETS_EXT, GLX_TEXTURE_2D_BIT_EXT,
GLX_DOUBLEBUFFER, GL_FALSE,
None
};
int nelem = 0;
GLXFBConfig* configs = glXChooseFBConfig(xdisp,
XCompcap::getRootWindowScreen(attr.root),
attrs, &nelem);
if (nelem <= 0) {
blog(LOG_ERROR, "no matching fb config found");
p->win = 0;
p->height = 0;
p->width = 0;
return;
}
glXGetFBConfigAttrib(xdisp, configs[0], GLX_Y_INVERTED_EXT, &nelem);
p->inverted = nelem != 0;
xlock.resetError();
p->pixmap = XCompositeNameWindowPixmap(xdisp, p->win);
if (xlock.gotError()) {
blog(LOG_ERROR, "XCompositeNameWindowPixmap failed: %s",
xlock.getErrorText().c_str());
p->pixmap = 0;
XFree(configs);
return;
}
const int attribs[] =
{
GLX_TEXTURE_TARGET_EXT, GLX_TEXTURE_2D_EXT,
GLX_TEXTURE_FORMAT_EXT, GLX_TEXTURE_FORMAT_RGBA_EXT,
None
};
p->glxpixmap = glXCreatePixmap(xdisp, configs[0], p->pixmap, attribs);
if (xlock.gotError()) {
blog(LOG_ERROR, "glXCreatePixmap failed: %s",
xlock.getErrorText().c_str());
XFreePixmap(xdisp, p->pixmap);
XFree(configs);
p->pixmap = 0;
p->glxpixmap = 0;
return;
}
XFree(configs);
p->gltex = gs_texture_create(p->width, p->height, cf, 1, 0,
GS_GL_DUMMYTEX);
GLuint gltex = *(GLuint*)gs_texture_get_obj(p->gltex);
glBindTexture(GL_TEXTURE_2D, gltex);
glXBindTexImageEXT(xdisp, p->glxpixmap, GLX_FRONT_LEFT_EXT, NULL);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
}
void XCompcapMain::tick(float seconds)
{
UNUSED_PARAMETER(seconds);
if (!obs_source_showing(p->source))
return;
PLock lock(&p->lock, true);
if (!lock.isLocked())
return;
XCompcap::processEvents();
if (XCompcap::windowWasReconfigured(p->win))
updateSettings(0);
XErrorLock xlock;
xlock.resetError();
XWindowAttributes attr;
if (!XGetWindowAttributes(xdisp, p->win, &attr)) {
Window newWin = getWindowFromString(p->windowName);
if (XGetWindowAttributes(xdisp, newWin, &attr)) {
p->win = newWin;
updateSettings(0);
}
return;
}
if (!p->tex || !p->gltex)
return;
obs_enter_graphics();
if (p->lockX) {
XLockDisplay(xdisp);
XSync(xdisp, 0);
}
if (p->include_border) {
gs_copy_texture_region(
p->tex, 0, 0,
p->gltex,
p->cur_cut_left,
p->cur_cut_top,
width(), height());
} else {
gs_copy_texture_region(
p->tex, 0, 0,
p->gltex,
p->cur_cut_left + p->border,
p->cur_cut_top + p->border,
width(), height());
}
if (p->cursor && p->show_cursor) {
xcursor_tick(p->cursor);
p->cursor_outside =
p->cursor->x < p->cur_cut_left ||
p->cursor->y < p->cur_cut_top ||
p->cursor->x > int(p->width - p->cur_cut_right) ||
p->cursor->y > int(p->height - p->cur_cut_bot);
}
if (p->lockX)
XUnlockDisplay(xdisp);
obs_leave_graphics();
}
