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/*
* Copyright 2014 © Samsung Research America, Silicon Valley
*
* Use of this source code is governed by the 3-Clause BSD license
* specified in the COPYING file included with this source code.
*/
#include <config.h>
#include <err.h>
#include <stdlib.h>
#include "image.h"
#include "device_config.h"
void
cleanup_state_image (void *data)
{
image_state_t *state = (image_state_t*)data;
free(state);
}
bool
createImageWindow(image_state_t *state, const device_config_t& device_config)
{
state->dpy = XOpenDisplay (NULL);
if (!state->dpy) {
warnx ("fail to open display: %s\n", XDisplayName (0));
return false;
}
int screen = DefaultScreen (state->dpy);
XVisualInfo vi;
XSetWindowAttributes attrs;
XMatchVisualInfo (state->dpy, screen, 32, TrueColor, &vi);
attrs.border_pixel = 0;
attrs.event_mask = StructureNotifyMask;
attrs.colormap = XCreateColormap (state->dpy, DefaultRootWindow (state->dpy),
vi.visual, AllocNone);
state->window = XCreateWindow (state->dpy, DefaultRootWindow (state->dpy),
0, 0,
device_config.width, device_config.height,
0,
vi.depth,
InputOutput, vi.visual,
CWBorderPixel | CWColormap | CWEventMask,
&attrs);
state->width = device_config.width;
state->height = device_config.height;
XMapWindow (state->dpy, state->window);
state->gc = XCreateGC (state->dpy, state->window, 0, NULL);
return true;
}
void
updateImageWindow (image_state_t* state)
{
XPutImage (state->dpy, state->window, state->gc, &state->image,
0, 0,
0, 0,
state->width, state->height);
XSync (state->dpy, False);
}
void
destroyImageWindow (image_state_t* state)
{
if (state->dpy) {
XFreeGC (state->dpy, state->gc);
XDestroyWindow (state->dpy, state->window);
XCloseDisplay (state->dpy);
}
}
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :
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