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#include "window.h"
#include <assert.h>
#include <stdlib.h>
#include <X11/Xlib.h>
#include<GL/gl.h>
#include<GL/glx.h>
struct imv_window {
Display *x_display;
Window x_window;
GLXContext x_glc;
};
struct imv_window *imv_window_create(int w, int h, const char *title)
{
struct imv_window *window = calloc(1, sizeof *window);
window->x_display = XOpenDisplay(NULL);
assert(window->x_display);
Window root = DefaultRootWindow(window->x_display);
assert(root);
GLint att[] = {
GLX_RGBA,
GLX_DEPTH_SIZE,
24,
GLX_DOUBLEBUFFER,
None
};
XVisualInfo *vi = glXChooseVisual(window->x_display, 0, att);
assert(vi);
Colormap cmap = XCreateColormap(window->x_display, root,
vi->visual, AllocNone);
XSetWindowAttributes wa = {
.colormap = cmap,
.event_mask = ExposureMask | KeyPressMask
};
window->x_window = XCreateWindow(window->x_display, root, 0, 0, w, h,
0, vi->depth, InputOutput, vi->visual, CWColormap | CWEventMask, &wa);
XMapWindow(window->x_display, window->x_window);
XStoreName(window->x_display, window->x_window, title);
window->x_glc = glXCreateContext(window->x_display, vi, NULL, GL_TRUE);
assert(window->x_glc);
glXMakeCurrent(window->x_display, window->x_window, window->x_glc);
return window;
}
void imv_window_free(struct imv_window *window)
{
glXDestroyContext(window->x_display, window->x_glc);
XCloseDisplay(window->x_display);
free(window);
}
void imv_window_clear(struct imv_window *window, unsigned char r,
unsigned char g, unsigned char b)
{
(void)window;
glClearColor(r / 255.0f, g / 255.0f, b / 255.0f, 1.0);
glClear(GL_COLOR_BUFFER_BIT);
}
void imv_window_get_size(struct imv_window *window, int *w, int *h)
{
(void)window;
(void)w;
(void)h;
}
void imv_window_get_framebuffer_size(struct imv_window *window, int *w, int *h)
{
(void)window;
(void)w;
(void)h;
}
void imv_window_set_title(struct imv_window *window, const char *title)
{
XStoreName(window->x_display, window->x_window, title);
}
bool imv_window_is_fullscreen(struct imv_window *window)
{
(void)window;
return false;
}
void imv_window_set_fullscreen(struct imv_window *window, bool fullscreen)
{
(void)window;
(void)fullscreen;
}
bool imv_window_get_mouse_button(struct imv_window *window, int button)
{
(void)window;
(void)button;
return false;
}
void imv_window_get_mouse_position(struct imv_window *window, double *x, double *y)
{
(void)window;
(void)x;
(void)y;
}
void imv_window_present(struct imv_window *window)
{
(void)window;
}
void imv_window_wait_for_event(struct imv_window *window, double timeout)
{
(void)window;
(void)timeout;
}
void imv_window_push_event(struct imv_window *window, struct imv_event *e)
{
(void)window;
(void)e;
}
void imv_window_pump_events(struct imv_window *window, imv_event_handler handler, void *data)
{
(void)handler;
(void)data;
XEvent xev;
while (XPending(window->x_display)) {
XNextEvent(window->x_display, &xev);
if (xev.type == Expose) {
XWindowAttributes wa;
XGetWindowAttributes(window->x_display, window->x_window, &wa);
glViewport(0, 0, wa.width, wa.height);
glXSwapBuffers(window->x_display, window->x_window);
}
}
}
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