FreeRDP/server/shadow/shadow_screen.c
Jakub Adam dea741fca9 shadow_screen: allow sub-rectangle to span multiple monitors
When we share a sub-rectangle of our desktop, allow it to span over
multiple monitors. Previously it was possible to export an area larger
than one display, however the contents were always cropped to
the boundaries of the selected monitor and the rest was visible for
the client only as a black area .
2015-05-25 14:19:34 +02:00

94 lines
2.1 KiB
C

/**
* FreeRDP: A Remote Desktop Protocol Implementation
*
* Copyright 2014 Marc-Andre Moreau <marcandre.moreau@gmail.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "shadow_surface.h"
#include "shadow_screen.h"
rdpShadowScreen* shadow_screen_new(rdpShadowServer* server)
{
int x, y;
int width, height;
rdpShadowScreen* screen;
rdpShadowSubsystem* subsystem;
screen = (rdpShadowScreen*) calloc(1, sizeof(rdpShadowScreen));
if (!screen)
return NULL;
screen->server = server;
subsystem = server->subsystem;
if (!InitializeCriticalSectionAndSpinCount(&(screen->lock), 4000))
return NULL;
region16_init(&(screen->invalidRegion));
if (server->shareSubRect) {
x = server->subRect.left;
y = server->subRect.top;
width = server->subRect.right - server->subRect.left;
height = server->subRect.bottom - server->subRect.top;
} else {
MONITOR_DEF* primary;
primary = &(subsystem->monitors[subsystem->selectedMonitor]);
x = primary->left;
y = primary->top;
width = primary->right - primary->left;
height = primary->bottom - primary->top;
}
screen->width = width;
screen->height = height;
screen->primary = shadow_surface_new(server, x, y, width, height);
if (!screen->primary)
return NULL;
server->surface = screen->primary;
return screen;
}
void shadow_screen_free(rdpShadowScreen* screen)
{
if (!screen)
return;
DeleteCriticalSection(&(screen->lock));
region16_uninit(&(screen->invalidRegion));
if (screen->primary)
{
shadow_surface_free(screen->primary);
screen->primary = NULL;
}
free(screen);
}