bool DisplayManager::Direct3DOccluded(HWND hWnd) {
IDirect3D9Ex *pDirect3DEx;
LPDIRECT3DDEVICE9EX pDeviceEx;
DWORD behaviorFlags = D3DCREATE_HARDWARE_VERTEXPROCESSING;
D3DPRESENT_PARAMETERS d3dpp = { 0 };
d3dpp.Windowed = TRUE;
d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
Direct3DCreate9Ex(D3D_SDK_VERSION, &pDirect3DEx);
HRESULT hr = pDirect3DEx->CreateDeviceEx(
D3DADAPTER_DEFAULT,
D3DDEVTYPE_HAL,
hWnd,
behaviorFlags,
&d3dpp,
NULL,
&pDeviceEx);
hr = pDeviceEx->CheckDeviceState(NULL);
bool occluded = (hr == S_PRESENT_OCCLUDED);
pDeviceEx->Release();
pDirect3DEx->Release();
return occluded;
}
void D3D9_SwapBuffers() {
if (has9Ex) {
deviceEx->EndScene();
deviceEx->PresentEx(NULL, NULL, NULL, NULL, 0);
deviceEx->BeginScene();
} else {
device->EndScene();
device->Present(NULL, NULL, NULL, NULL);
device->BeginScene();
}
}
// this is the function used to render a single frame
void render_frame(void)
{
HRESULT hr;
static int col = 0;
hr = d3ddev->Clear(0, NULL, D3DCLEAR_TARGET, D3DCOLOR_XRGB(0, 0, col++), 1.0f, 0);
if (FAILED(hr)) ERR("Clear\n");
hr = d3ddev->BeginScene();
if (FAILED(hr)) ERR("BeginScene\n");
// select which vertex format we are using
hr = d3ddev->SetFVF(CUSTOMFVF);
if (FAILED(hr)) ERR("SetFVF\n");
// select the vertex buffer to display
hr = d3ddev->SetStreamSource(0, v_buffer, 0, sizeof(CUSTOMVERTEX));
if (FAILED(hr)) ERR("SetStreamSource\n");
// copy the vertex buffer to the back buffer
hr = d3ddev->DrawPrimitive(D3DPT_TRIANGLELIST, 0, 1);
if (FAILED(hr)) ERR("DrawPrimitive\n");
hr = d3ddev->EndScene();
if (FAILED(hr)) ERR("EndScene\n");
hr = d3ddev->Present(NULL, NULL, NULL, NULL);
if (FAILED(hr)) ERR("Present\n");
}
void init_graphics(void)
{
// create a vertex buffer interface called v_buffer
d3ddev->CreateVertexBuffer(3 * sizeof(CUSTOMVERTEX),
0,
CUSTOMFVF,
D3DPOOL_MANAGED,
&v_buffer,
NULL);
load_triangle(SCREEN_WIDTH, SCREEN_HEIGHT, v_buffer);
}
static bool set_window_size(SDL_Window* Window, int w, int h, bool fullscreen)
{
D3DDISPLAYMODEEX mode;
D3DPRESENT_PARAMETERS d3dpp;
fillin_present_parameters(Window, w, h, fullscreen, d3dpp, mode);
HRESULT hr = d3ddev->ResetEx(&d3dpp, &mode);
if (FAILED(hr)) {
ERR("Resize failed\n");
return false;
}
return true;
}
int main(int argc, char **argv)
{
bool fullscreen = false;
if (SDL_Init(0) != 0){
ERR("SDL_Init\n");
return 1;
}
SDL_Window* Window = SDL_CreateWindow("SDL Nine", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, SCREEN_WIDTH, SCREEN_HEIGHT, SDL_WINDOW_SHOWN | SDL_WINDOW_RESIZABLE );
if (!Window) {
ERR("SDL_CreateWindow\n");
return 1;
}
d3d = SDL_Direct3DCreate9Ex(Window);
if (!d3d) {
ERR("X11_Direct3DCreate9\n");
return 1;
}
{
HWND FakeWnd= (HWND)Window;
D3DDISPLAYMODEEX mode;
D3DPRESENT_PARAMETERS d3dpp;
fillin_present_parameters(Window, SCREEN_WIDTH, SCREEN_HEIGHT, fullscreen, d3dpp, mode);
// create a device class using this information and the info from the d3dpp stuct
HRESULT hr = d3d->CreateDeviceEx(D3DADAPTER_DEFAULT,
D3DDEVTYPE_HAL,
FakeWnd,
D3DCREATE_HARDWARE_VERTEXPROCESSING,
&d3dpp, &mode,
&d3ddev);
if (FAILED(hr)) {
ERR("X11_Direct3DCreate9\n");
return 1;
}
}
init_graphics(); // call the function to initialize the triangle
Uint32 MainWindowID = SDL_GetWindowID(Window);
bool quit = false;
SDL_Event e;
//While application is running
while (!quit)
{
//Handle events on queue
while (SDL_PollEvent(&e) != 0)
{
//User requests quit
if (e.type == SDL_QUIT)
{
quit = true;
}
else if (e.type == SDL_WINDOWEVENT && e.window.windowID == MainWindowID)
{
switch (e.window.event) {
case SDL_WINDOWEVENT_SIZE_CHANGED:
{
int width = e.window.data1;
int height = e.window.data2;
bool ok = set_window_size(Window, width, height, fullscreen);
if (ok)
load_triangle(width, height, v_buffer);
} break;
}
}
else if (e.type == SDL_KEYDOWN && e.window.windowID == MainWindowID && e.key.keysym.sym == SDLK_F11 && e.key.state == SDL_PRESSED)
{
fullscreen = !fullscreen;
bool ok = set_window_size(Window, SCREEN_WIDTH, SCREEN_HEIGHT, fullscreen);
if (ok)
load_triangle(SCREEN_WIDTH, SCREEN_HEIGHT, v_buffer);
}
}
//Render quad
render_frame();
}
// clean up DirectX
{
v_buffer->Release(); // close and release the vertex buffer
d3ddev->Release(); // close and release the 3D device
d3d->Release(); // close and release Direct3D
}
SDL_Quit();
return 0;
}