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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 <cairo.h>
#include "forward.h"
#include "image.h"
static image_state_t *state;
cairo_surface_t *cairo_surface;
static bool
convert_cairo_surface_to_ximage (cairo_surface_t *surface)
{
unsigned char *data = cairo_image_surface_get_data (surface);
state->image.width = cairo_image_surface_get_width (surface);
state->image.height = cairo_image_surface_get_height (surface);
state->image.format = ZPixmap;
state->image.data = (char*)data;
state->image.bitmap_unit = 4 * 8;
state->image.byte_order = LSBFirst;
state->image.bitmap_bit_order = LSBFirst;
state->image.bitmap_pad = 4 * 8;
state->image.depth = 32;
state->image.bytes_per_line = state->image.width * 4;
state->image.bits_per_pixel = 4 * 8;
return XInitImage (&state->image);
}
cairo_surface_t *
create_cairo_surface_image (const device_config_t& config)
{
state = (image_state_t*) malloc (sizeof (image_state_t));
if (!state) {
warnx ("Out of memory\n");
return NULL;
}
if (!createImageWindow(state, config)) {
cleanup_state_image(state);
return NULL;
}
cairo_surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
config.width,
config.height);
return cairo_surface;
}
void
destroy_cairo_image(void)
{
destroyImageWindow(state);
cleanup_state_image(state);
}
void
update_cairo_image(void)
{
if (convert_cairo_surface_to_ximage (cairo_surface)) {
updateImageWindow(state);
}
}
/*
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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