static bool
glx_platform_make_current(struct wcore_platform *wc_self,
struct wcore_display *wc_dpy,
struct wcore_window *wc_window,
struct wcore_context *wc_ctx)
{
return wrapped_glXMakeCurrent(glx_display(wc_dpy)->x11.xlib,
wc_window ? glx_window(wc_window)->x11.xcb : 0,
wc_ctx ? glx_context(wc_ctx)->glx : NULL);
}
bool
glx_window_swap_buffers(struct wcore_window *wc_self)
{
struct glx_window *self = glx_window(wc_self);
struct glx_display *dpy = glx_display(wc_self->display);
struct glx_platform *plat = glx_platform(wc_self->display->platform);
wrapped_glXSwapBuffers(plat, dpy->x11.xlib, self->x11.xcb);
return true;
}
union waffle_native_config*
glx_config_get_native(struct wcore_config *wc_self)
{
struct glx_config *self = glx_config(wc_self);
struct glx_display *dpy = glx_display(wc_self->display);
union waffle_native_config *n_config;
WCORE_CREATE_NATIVE_UNION(n_config, glx);
if (!n_config)
return NULL;
n_config->glx->xlib_display = dpy->x11.xlib;
n_config->glx->glx_fbconfig = self->glx_fbconfig;
return n_config;
}
union waffle_native_window*
glx_window_get_native(struct wcore_window *wc_self)
{
struct glx_window *self = glx_window(wc_self);
struct glx_display *dpy = glx_display(wc_self->display);
union waffle_native_window *n_window;
WCORE_CREATE_NATIVE_UNION(n_window, glx);
if (!n_window)
return NULL;
n_window->glx->xlib_display = dpy->x11.xlib;
n_window->glx->xlib_window = self->x11.xcb;
return n_window;
}
struct wcore_window*
glx_window_create(struct wcore_platform *wc_plat,
struct wcore_config *wc_config,
int32_t width,
int32_t height,
const intptr_t attrib_list[])
{
struct glx_window *self;
struct glx_display *dpy = glx_display(wc_config->display);
struct glx_config *config = glx_config(wc_config);
bool ok = true;
if (width == -1 && height == -1) {
width = DisplayWidth(dpy->x11.xlib, dpy->x11.screen);
height = DisplayHeight(dpy->x11.xlib, dpy->x11.screen);
}
if (wcore_attrib_list_length(attrib_list) > 0) {
wcore_error_bad_attribute(attrib_list[0]);
return NULL;
}
self = wcore_calloc(sizeof(*self));
if (self == NULL)
return NULL;
ok = wcore_window_init(&self->wcore, wc_config);
if (!ok)
goto error;
ok = x11_window_init(&self->x11,
&dpy->x11,
config->xcb_visual_id,
width,
height);
if (!ok)
goto error;
return &self->wcore;
error:
glx_window_destroy(&self->wcore);
return NULL;
}
static bool
glx_platform_make_current(struct wcore_platform *wc_self,
struct wcore_display *wc_dpy,
struct wcore_window *wc_window,
struct wcore_context *wc_ctx)
{
struct glx_platform *self = glx_platform(wc_self);
Display *dpy = glx_display(wc_dpy)->x11.xlib;
GLXDrawable win = wc_window ? glx_window(wc_window)->x11.xcb : 0;
GLXContext ctx = wc_ctx ? glx_context(wc_ctx)->glx : NULL;
bool ok;
ok = wrapped_glXMakeCurrent(self, dpy, win, ctx);
if (!ok) {
wcore_errorf(WAFFLE_ERROR_UNKNOWN, "glXMakeCurrent failed");
}
return ok;
}
struct wcore_config*
glx_config_choose(struct wcore_platform *wc_plat,
struct wcore_display *wc_dpy,
const struct wcore_config_attrs *attrs)
{
struct glx_config *self;
struct glx_display *dpy = glx_display(wc_dpy);
struct glx_platform *plat = glx_platform(wc_plat);
GLXFBConfig *configs = NULL;
int num_configs = 0;
XVisualInfo *vi = NULL;
bool ok = true;
if (!glx_config_check_context_attrs(dpy, attrs))
return NULL;
self = wcore_calloc(sizeof(*self));
if (self == NULL)
return NULL;
ok = wcore_config_init(&self->wcore, wc_dpy, attrs);
if (!ok)
goto error;
int attrib_list[] = {
// From page 12 (18 of pdf) of the GLX 1.4 spec:
//
// For GLXFBConfigs that correspond to a TrueColor or DirectColor
// visual, GLX BUFFER SIZE is the sum of GLX RED SIZE, GLX GREEN
// SIZE, GLX BLUE SIZE, and GLX ALPHA SIZE.
GLX_BUFFER_SIZE, attrs->rgba_size,
GLX_RED_SIZE, attrs->red_size,
GLX_GREEN_SIZE, attrs->green_size,
GLX_BLUE_SIZE, attrs->blue_size,
GLX_ALPHA_SIZE, attrs->alpha_size,
GLX_DEPTH_SIZE, attrs->depth_size,
GLX_STENCIL_SIZE, attrs->stencil_size,
GLX_SAMPLE_BUFFERS, attrs->sample_buffers,
GLX_SAMPLES, attrs->samples,
GLX_DOUBLEBUFFER, attrs->double_buffered,
GLX_ACCUM_RED_SIZE, attrs->accum_buffer,
GLX_ACCUM_GREEN_SIZE, attrs->accum_buffer,
GLX_ACCUM_BLUE_SIZE, attrs->accum_buffer,
GLX_ACCUM_ALPHA_SIZE, attrs->accum_buffer,
// According to the GLX 1.4 spec Table 3.4, the default value of
// GLX_DRAWABLE_TYPE is GLX_WINDOW_BIT. Explicitly set the default
// here for the sake of self-documentation.
GLX_DRAWABLE_TYPE, GLX_WINDOW_BIT,
0,
};
// Set glx_fbconfig.
configs = wrapped_glXChooseFBConfig(plat, dpy->x11.xlib,
dpy->x11.screen,
attrib_list,
&num_configs);
if (!configs || num_configs == 0) {
wcore_errorf(WAFFLE_ERROR_UNKNOWN,
"glXChooseFBConfig returned no matching configs");
goto error;
}
// Simply take the first.
self->glx_fbconfig = configs[0];
// Set glx_fbconfig_id.
ok = !wrapped_glXGetFBConfigAttrib(plat, dpy->x11.xlib,
self->glx_fbconfig,
GLX_FBCONFIG_ID,
&self->glx_fbconfig_id);
if (!ok) {
wcore_errorf(WAFFLE_ERROR_UNKNOWN, "glxGetFBConfigAttrib failed");
goto error;
}
// Set xcb_visual_id.
vi = wrapped_glXGetVisualFromFBConfig(plat, dpy->x11.xlib,
self->glx_fbconfig);
if (!vi) {
wcore_errorf(WAFFLE_ERROR_UNKNOWN,
"glXGetVisualInfoFromFBConfig failed with "
"GLXFBConfigID=0x%x\n", self->glx_fbconfig_id);
goto error;
}
self->xcb_visual_id = vi->visualid;
goto cleanup;
error:
glx_config_destroy(&self->wcore);
self = NULL;
cleanup:
if (configs)
XFree(configs);
if (vi)
XFree(vi);
return &self->wcore;
}