extern void gl_platform_destroy(struct gl_platform *plat)
{
if (!plat) /* In what case would platform be invalid here? */
return;
gl_context_destroy(plat);
}
extern void gl_platform_destroy(struct gl_platform *plat)
{
if (!plat) /* In what case would platform be invalid here? */
return;
struct gl_windowinfo *wi = plat->swap.wi;
gl_context_destroy(plat);
gl_windowinfo_destroy(wi);
}
extern struct gl_platform *gl_platform_create(gs_device_t *device,
uint32_t adapter)
{
/* There's some trickery here... we're mixing libX11, xcb, and GLX
For an explanation see here: http://xcb.freedesktop.org/MixingCalls/
Essentially, GLX requires Xlib. Everything else we use xcb. */
struct gl_platform * plat = bmalloc(sizeof(struct gl_platform));
Display * display = open_windowless_display();
if (!display) {
goto fail_display_open;
}
XSetEventQueueOwner(display, XCBOwnsEventQueue);
XSetErrorHandler(x_error_handler);
/* We assume later that cur_swap is already set. */
device->plat = plat;
plat->display = display;
if (!gl_context_create(plat)) {
blog(LOG_ERROR, "Failed to create context!");
goto fail_context_create;
}
if (!glXMakeContextCurrent(plat->display, plat->pbuffer, plat->pbuffer,
plat->context)) {
blog(LOG_ERROR, "Failed to make context current.");
goto fail_make_current;
}
if (!gladLoadGL()) {
blog(LOG_ERROR, "Failed to load OpenGL entry functions.");
goto fail_load_gl;
}
blog(LOG_INFO, "OpenGL version: %s\n", glGetString(GL_VERSION));
goto success;
fail_make_current:
gl_context_destroy(plat);
fail_context_create:
fail_load_gl:
XCloseDisplay(display);
fail_display_open:
bfree(plat);
plat = NULL;
success:
UNUSED_PARAMETER(adapter);
return plat;
}
extern struct gl_platform *gl_platform_create(gs_device_t *device,
const struct gs_init_data *info)
{
/* There's some trickery here... we're mixing libX11, xcb, and GLX
For an explanation see here: http://xcb.freedesktop.org/MixingCalls/
Essentially, GLX requires Xlib. Everything else we use xcb. */
struct gl_windowinfo *wi = gl_windowinfo_create(info);
struct gl_platform * plat = bmalloc(sizeof(struct gl_platform));
Display * display;
print_info_stuff(info);
if (!wi) {
blog(LOG_ERROR, "Failed to create window info!");
goto fail_wi_create;
}
display = XOpenDisplay(XDisplayString(info->window.display));
if (!display) {
blog(LOG_ERROR, "Unable to open new X connection!");
goto fail_display_open;
}
XSetEventQueueOwner(display, XCBOwnsEventQueue);
XSetErrorHandler(x_error_handler);
/* We assume later that cur_swap is already set. */
device->cur_swap = &plat->swap;
device->plat = plat;
plat->display = display;
plat->swap.device = device;
plat->swap.info = *info;
plat->swap.wi = wi;
if (!gl_platform_init_swapchain(&plat->swap)) {
blog(LOG_ERROR, "Failed to initialize swap chain!");
goto fail_init_swapchain;
}
if (!gl_context_create(plat)) {
blog(LOG_ERROR, "Failed to create context!");
goto fail_context_create;
}
if (!glXMakeCurrent(plat->display, wi->window, plat->context)) {
blog(LOG_ERROR, "Failed to make context current.");
goto fail_make_current;
}
if (!gladLoadGL()) {
blog(LOG_ERROR, "Failed to load OpenGL entry functions.");
goto fail_load_gl;
}
blog(LOG_INFO, "OpenGL version: %s\n", glGetString(GL_VERSION));
goto success;
fail_make_current:
gl_context_destroy(plat);
fail_context_create:
fail_load_gl:
fail_init_swapchain:
XCloseDisplay(display);
fail_display_open:
fail_wi_create:
gl_windowinfo_destroy(wi);
free(plat);
plat = NULL;
success:
return plat;
}
