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| // g++ -g -Wall -o d3d d3d.cpp -ld3d9 -ld3dx9d
#include <cstdlib>
#include <cstdio>
#include <windows.h>
#include <d3d9.h>
#include <d3dx9.h>
typedef struct Data Data;
struct Data
{
LPDIRECT3D9 object;
LPDIRECT3DDEVICE9 device;
LPD3DXSPRITE sprite;
LPDIRECT3DTEXTURE9 texture;
};
static LRESULT CALLBACK
MainWndProc(HWND hwnd,
UINT uMsg,
WPARAM wParam,
LPARAM lParam)
{
switch (uMsg)
{
case WM_CREATE:
return 0;
case WM_DESTROY:
PostQuitMessage(0);
return 0;
case WM_CLOSE:
PostQuitMessage(0);
return 0;
default:
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
}
Data *
data_init (HWND window,
int width,
int height)
{
D3DPRESENT_PARAMETERS pp;
D3DDISPLAYMODE dm;
Data *d;
d = (Data *)malloc (sizeof (Data));
if (!d)
goto no_data;
d->object = Direct3DCreate9 (D3D_SDK_VERSION);
if (!d->object)
goto no_object;
if (FAILED (d->object->GetAdapterDisplayMode (D3DADAPTER_DEFAULT, &dm)))
goto no_device;
ZeroMemory(&pp, sizeof(pp));
pp.BackBufferFormat = dm.Format;
pp.BackBufferCount = 1;
pp.SwapEffect = D3DSWAPEFFECT_FLIP;
pp.hDeviceWindow = window;
pp.Windowed = TRUE;
if (FAILED(d->object->CreateDevice (D3DADAPTER_DEFAULT,
D3DDEVTYPE_HAL,
window,
D3DCREATE_HARDWARE_VERTEXPROCESSING,
&pp,
&d->device)))
goto no_device;
if (FAILED (D3DXCreateSprite (d->device, &d->sprite)))
goto no_sprite;
if (FAILED (d->device->CreateTexture (width, height, 1,
D3DUSAGE_DYNAMIC,
dm.Format,
D3DPOOL_DEFAULT,
&d->texture, NULL)))
goto no_texture;
return d;
no_texture:
d->sprite->Release ();
no_sprite:
d->device->Release ();
no_device:
d->object->Release ();
no_object:
free (d);
no_data:
return NULL;
}
void
data_shutdown (Data *d)
{
if (!d)
return;
d->texture->Release ();
d->sprite->Release ();
d->device->Release ();
d->object->Release ();
}
void
data_paint (Data *d)
{
D3DLOCKED_RECT d3d_rect;
RECT rect;
int w;
int h;
int depth;
int pitch;
unsigned char *tmp;
unsigned char *d3d_tmp;
static int foo = 0;
void *surf;
w = 64;
h = 64;
depth = 4;
pitch = depth * w;
surf = calloc (w * h * depth, 1);
if (!surf) {
printf ("pas bon \n");
return;
}
tmp = (unsigned char *)surf;
for (int r = 0; r < w; r++) {
for (int g = 0; g < h; g++, tmp += depth) {
tmp[0] = (r * 2 + foo) % 256;
tmp[1] = (g + foo) % 256;
tmp[2] = (w - 1 - g) * 4;
}
}
foo++;
rect.left = 0;
rect.top = 0;
rect.right = w;
rect.bottom = h;
if (FAILED (d->device->BeginScene ()))
return;
if (FAILED (d->sprite->Begin (0)))
return;
if (FAILED (d->texture->LockRect (0, &d3d_rect, NULL, D3DLOCK_DISCARD))) {
d->sprite->End ();
d->device->EndScene ();
return;
}
tmp = (unsigned char *)surf;
d3d_tmp = (unsigned char *)d3d_rect.pBits;
for (int j = 0; j < h; j++, tmp += pitch, d3d_tmp += d3d_rect.Pitch)
memcpy (d3d_tmp, tmp, pitch);
d->texture->UnlockRect(0);
d->sprite->Draw (d->texture, &rect, NULL, NULL,
D3DCOLOR_ARGB (0, 0, 0, 0));
d->sprite->End ();
d->device->EndScene ();
d->device->Present (NULL, NULL, NULL, NULL);
free (surf);
}
int WINAPI
WinMain(HINSTANCE hinstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nCmdShow)
#if 0
main ()
#endif
{
WNDCLASS wc;
RECT rect;
MSG msg;
HINSTANCE instance;
HWND window;
Data *d;
int width;
int height;
instance = GetModuleHandle(0);
if (!instance)
goto no_instance;
ZeroMemory(&wc, sizeof(wc));
wc.lpfnWndProc = MainWndProc;
wc.hInstance = instance;
wc.hIcon = LoadIcon (NULL, IDI_APPLICATION);
wc.hCursor = LoadCursor (NULL, IDC_ARROW);
wc.hbrBackground = (HBRUSH)(1 + COLOR_BTNFACE);
wc.lpszClassName = "Direct3D_test";
if(!RegisterClass(&wc))
goto no_window_class;
width = 320;
height = 200;
rect.left = 0;
rect.top = 0;
rect.right = width;
rect.bottom = height;
AdjustWindowRect (&rect, WS_OVERLAPPEDWINDOW | WS_SIZEBOX, FALSE);
window = CreateWindow("Direct3D_test",
"Direct3D_test",
WS_OVERLAPPEDWINDOW | WS_SIZEBOX,
CW_USEDEFAULT, CW_USEDEFAULT,
rect.right - rect.left, rect.bottom - rect.top,
NULL, NULL, instance, NULL);
if (!window)
goto no_window;
d = data_init (window, width, height);
if (!d)
goto no_data;
ShowWindow(window, SW_SHOWDEFAULT);
UpdateWindow(window);
while (GetMessage (&msg, NULL, 0, 0))
{
TranslateMessage (&msg);
DispatchMessage (&msg);
data_paint (d);
}
data_shutdown (d);
DestroyWindow (window);
UnregisterClass ("Direct3D_test", instance);
FreeLibrary (instance);
return EXIT_SUCCESS;
no_data:
DestroyWindow (window);
no_window:
UnregisterClass ("Direct3D_test", instance);
no_window_class:
FreeLibrary (instance);
no_instance:
return EXIT_FAILURE;
} |
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