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/*
* SimplX - Proposed name if not taken already.
*
* Copyright (C) 2014 Tomasz Kramkowski <tk@the-tk.com>
*
* This program is free software. It is licensed under version 3 of the
* GNU General Public License.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see [http://www.gnu.org/licenses/].
*/
#include <stdlib.h>
#include <xcb/xcb.h>
#include <xcb/xcb_image.h>
/*
* TODO: Figure out the alignment of these things fix the arrangement.
* Find a good name for this.
*/
typedef struct sx_gc {
/*struct {*/
xcb_connection_t *connection;
xcb_screen_t *screen;
xcb_drawable_t window;
xcb_pixmap_t pixmap;
xcb_image_t *image;
xcb_gcontext_t gc;
/*} xcb;*/
} SX;
SX *sx_new_gc(uint16_t width, uint16_t height)
{
SX *sx = malloc(sizeof(SX));
sx->connection = xcb_connect(NULL, NULL);
sx->screen = xcb_setup_roots_iterator(xcb_get_setup(sx->connection)).data;
uint32_t mask = XCB_CW_BACK_PIXEL; /* Needs events */
uint32_t values[] = {sx->screen->black_pixel};
sx->window = xcb_generate_id(sx->connection);
xcb_create_window(sx->connection,
24,
sx->window,
sx->screen->root,
0, 0,
width, height,
1,
XCB_WINDOW_CLASS_INPUT_OUTPUT,
sx->screen->root_visual,
mask, values);
sx->pixmap = xcb_generate_id(sx->connection);
xcb_create_pixmap(sx->connection,
24,
sx->pixmap,
sx->window,
width, height);
uint8_t *img = malloc(width * height * 4);
xcb_image_t *image = xcb_image_create(width, height,
XCB_IMAGE_FORMAT_Z_PIXMAP,
8, 24, 32,
0,
XCB_IMAGE_ORDER_MSB_FIRST,
XCB_IMAGE_ORDER_LSB_FIRST,
img,
width * height * 4,
img);
mask = XCB_GC_FOREGROUND | XCB_GC_BACKGROUND;
values[0] = sx->screen->black_pixel;
values[1] = 0xFFFFFF;
sx->gc = xcb_generate_id(sx->connection);
xcb_create_gc(sx->connection,
sx->gc,
sx->pixmap,
mask, values);
return sx;
}
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