int x11_shadow_screen_grab(x11ShadowSubsystem* subsystem)
{
int count;
int status;
int x, y;
int width, height;
XImage* image;
rdpShadowScreen* screen;
rdpShadowServer* server;
rdpShadowSurface* surface;
RECTANGLE_16 invalidRect;
RECTANGLE_16 surfaceRect;
const RECTANGLE_16 *extents;
server = subsystem->server;
surface = server->surface;
screen = server->screen;
count = ArrayList_Count(server->clients);
if (count < 1)
return 1;
surfaceRect.left = 0;
surfaceRect.top = 0;
surfaceRect.right = surface->width;
surfaceRect.bottom = surface->height;
XLockDisplay(subsystem->display);
/*
* Ignore BadMatch error during image capture. The screen size may be
* changed outside. We will resize to correct resolution at next frame
*/
XSetErrorHandler(x11_shadow_error_handler_for_capture);
if (subsystem->use_xshm)
{
image = subsystem->fb_image;
XCopyArea(subsystem->display, subsystem->root_window, subsystem->fb_pixmap,
subsystem->xshm_gc, 0, 0, subsystem->width, subsystem->height, 0, 0);
status = shadow_capture_compare(surface->data, surface->scanline, surface->width, surface->height,
(BYTE*) &(image->data[surface->width * 4]), image->bytes_per_line, &invalidRect);
}
else
{
image = XGetImage(subsystem->display, subsystem->root_window,
surface->x, surface->y, surface->width, surface->height, AllPlanes, ZPixmap);
if (!image)
{
/*
* BadMatch error happened. The size may have been changed again.
* Give up this frame and we will resize again in next frame
*/
goto fail_capture;
}
status = shadow_capture_compare(surface->data, surface->scanline, surface->width, surface->height,
(BYTE*) image->data, image->bytes_per_line, &invalidRect);
}
/* Restore the default error handler */
XSetErrorHandler(NULL);
XSync(subsystem->display, False);
XUnlockDisplay(subsystem->display);
region16_union_rect(&(surface->invalidRegion), &(surface->invalidRegion), &invalidRect);
region16_intersect_rect(&(surface->invalidRegion), &(surface->invalidRegion), &surfaceRect);
if (!region16_is_empty(&(surface->invalidRegion)))
{
extents = region16_extents(&(surface->invalidRegion));
x = extents->left;
y = extents->top;
width = extents->right - extents->left;
height = extents->bottom - extents->top;
freerdp_image_copy(surface->data, PIXEL_FORMAT_XRGB32,
surface->scanline, x, y, width, height,
(BYTE*) image->data, PIXEL_FORMAT_XRGB32,
image->bytes_per_line, x, y, NULL);
//x11_shadow_blend_cursor(subsystem);
count = ArrayList_Count(server->clients);
shadow_subsystem_frame_update((rdpShadowSubsystem *)subsystem);
if (count == 1)
{
rdpShadowClient* client;
client = (rdpShadowClient*) ArrayList_GetItem(server->clients, 0);
if (client)
{
subsystem->captureFrameRate = shadow_encoder_preferred_fps(client->encoder);
}
}
region16_clear(&(surface->invalidRegion));
}
if (!subsystem->use_xshm)
XDestroyImage(image);
return 1;
fail_capture:
XSetErrorHandler(NULL);
XSync(subsystem->display, False);
XUnlockDisplay(subsystem->display);
return 0;
}
int x11_shadow_screen_grab(x11ShadowSubsystem* subsystem)
{
int count;
int status;
int x, y;
int width, height;
XImage* image;
rdpShadowScreen* screen;
rdpShadowServer* server;
rdpShadowSurface* surface;
RECTANGLE_16 invalidRect;
RECTANGLE_16 surfaceRect;
const RECTANGLE_16 *extents;
server = subsystem->server;
surface = server->surface;
screen = server->screen;
count = ArrayList_Count(server->clients);
if (count < 1)
return 1;
if ((count == 1) && subsystem->suppressOutput)
return 1;
surfaceRect.left = 0;
surfaceRect.top = 0;
surfaceRect.right = surface->width;
surfaceRect.bottom = surface->height;
XLockDisplay(subsystem->display);
if (subsystem->use_xshm)
{
image = subsystem->fb_image;
XCopyArea(subsystem->display, subsystem->root_window, subsystem->fb_pixmap,
subsystem->xshm_gc, 0, 0, subsystem->width, subsystem->height, 0, 0);
status = shadow_capture_compare(surface->data, surface->scanline, surface->width, surface->height,
(BYTE*) &(image->data[surface->width * 4]), image->bytes_per_line, &invalidRect);
}
else
{
image = XGetImage(subsystem->display, subsystem->root_window,
surface->x, surface->y, surface->width, surface->height, AllPlanes, ZPixmap);
status = shadow_capture_compare(surface->data, surface->scanline, surface->width, surface->height,
(BYTE*) image->data, image->bytes_per_line, &invalidRect);
}
XSync(subsystem->display, False);
XUnlockDisplay(subsystem->display);
region16_union_rect(&(subsystem->invalidRegion), &(subsystem->invalidRegion), &invalidRect);
region16_intersect_rect(&(subsystem->invalidRegion), &(subsystem->invalidRegion), &surfaceRect);
if (!region16_is_empty(&(subsystem->invalidRegion)))
{
extents = region16_extents(&(subsystem->invalidRegion));
x = extents->left;
y = extents->top;
width = extents->right - extents->left;
height = extents->bottom - extents->top;
freerdp_image_copy(surface->data, PIXEL_FORMAT_XRGB32,
surface->scanline, x, y, width, height,
(BYTE*) image->data, PIXEL_FORMAT_XRGB32,
image->bytes_per_line, x, y, NULL);
//x11_shadow_blend_cursor(subsystem);
count = ArrayList_Count(server->clients);
shadow_multiclient_publish_and_wait(subsystem->updateEvent);
if (count == 1)
{
rdpShadowClient* client;
client = (rdpShadowClient*) ArrayList_GetItem(server->clients, 0);
if (client)
{
subsystem->captureFrameRate = shadow_encoder_preferred_fps(client->encoder);
}
}
region16_clear(&(subsystem->invalidRegion));
}
if (!subsystem->use_xshm)
XDestroyImage(image);
return 1;
}
