void
TopCanvas::CreateGLX(_XDisplay *_x_display,
X11Window x_window,
GLXFBConfig *fb_cfg)
{
x_display = _x_display;
glx_context = glXCreateNewContext(_x_display, *fb_cfg, GLX_RGBA_TYPE,
nullptr, true);
if (glx_context == nullptr) {
fprintf(stderr, "Failed to create GLX context\n");
exit(EXIT_FAILURE);
}
glx_window = glXCreateWindow(_x_display, *fb_cfg, x_window, nullptr);
XSync(x_display, false);
if (!glXMakeContextCurrent(_x_display, glx_window, glx_window, glx_context)) {
fprintf(stderr, "Failed to attach GLX context to GLX window\n");
exit(EXIT_FAILURE);
}
unsigned int glx_width = -1, glx_height = -1;
glXQueryDrawable(_x_display, glx_window, GLX_WIDTH, &glx_width);
glXQueryDrawable(_x_display, glx_window, GLX_HEIGHT, &glx_height);
if ((glx_width <= 0) || (glx_height <= 0)) {
fprintf(stderr, "Failed to query GLX drawable size\n");
exit(EXIT_FAILURE);
}
const PixelSize effective_size = { glx_width, glx_height };
OpenGL::SetupContext();
OpenGL::SetupViewport(UnsignedPoint2D(effective_size.cx,
effective_size.cy));
Canvas::Create(effective_size);
}
void
TopCanvas::SetupViewport(PixelSize native_size)
{
auto new_size = OpenGL::SetupViewport(UnsignedPoint2D(native_size.cx,
native_size.cy));
Canvas::Create(PixelSize(new_size.x, new_size.y));
}
void
TopCanvas::OnResize(PixelSize new_size)
{
if (new_size == size)
return;
OpenGL::SetupViewport(UnsignedPoint2D(new_size.cx, new_size.cy));
Canvas::Create(new_size);
}
void
TopCanvas::Resume()
{
#if defined(ANDROID) && defined(USE_EGL)
surface = eglGetCurrentSurface(EGL_DRAW);
#endif
OpenGL::SetupContext();
OpenGL::SetupViewport(UnsignedPoint2D(size.cx, size.cy));
}
void
TopCanvas::Create(PixelSize new_size, bool full_screen, bool resizable)
{
#ifdef USE_EGL
display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
surface = eglGetCurrentSurface(EGL_DRAW);
#endif
OpenGL::SetupContext();
OpenGL::SetupViewport(UnsignedPoint2D(new_size.cx, new_size.cy));
Canvas::Create(new_size);
}
