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DirectX.cpp
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DirectX.cpp
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// DIRECTX FUNCTIONS
int DD_Init(HWND hwnd)
{
int index;
if(DirectDrawCreate(NULL,&pdd,NULL)!=DD_OK)
{
DD_Shutdown();
return 0;
}
if(pdd->QueryInterface(IID_IDirectDraw4, (LPVOID *) & lpdd ) != DD_OK)
{
DD_Shutdown();
return 0;
}
if(lpdd->SetCooperativeLevel(hwnd, DDSCL_EXCLUSIVE | DDSCL_FULLSCREEN | DDSCL_FPUSETUP) != DD_OK )
{
DD_Shutdown();
return 0;
}
if(lpdd->SetDisplayMode(SCREEN_WIDTH,SCREEN_HEIGHT,SCREEN_BPP,0,0) != DD_OK)
{
DD_Shutdown();
return 0;
}
ZeroMemory(&ddsd, sizeof(ddsd));
ddsd.dwSize = sizeof(ddsd);
ddsd.dwFlags = DDSD_CAPS | DDSD_BACKBUFFERCOUNT;
ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE | DDSCAPS_FLIP | DDSCAPS_COMPLEX;
ddsd.dwBackBufferCount = 1;
if (lpdd->CreateSurface(&ddsd,&lpddsprimary,NULL) != DD_OK)
{
DD_Shutdown();
return 0;
}
ddscaps.dwCaps = DDSCAPS_BACKBUFFER;
if (lpddsprimary->GetAttachedSurface(&ddscaps,&lpddsback) != DD_OK)
{
DD_Shutdown();
return 0;
}
int temp;
for(index = 0; index < 256; index++ )
{
// Swap blue and red components (Bitmap file stores in incorrect order)
temp = colour_palette[index].peRed;
colour_palette[index].peRed = colour_palette[index].peBlue;
colour_palette[index].peBlue = temp;
// colour_palette[index].peGreen = index;
colour_palette[index].peFlags = PC_NOCOLLAPSE;
}
if(lpdd->CreatePalette((DDPCAPS_8BIT | DDPCAPS_INITIALIZE | DDPCAPS_ALLOW256 ),colour_palette,&lpddpal,NULL)!=DD_OK)
{
DD_Shutdown();
return 0;
}
if( lpddsprimary->SetPalette(lpddpal) != DD_OK )
{
DD_Shutdown();
return 0;
}
for(index = 0; index < 256; index++ )
{
// Swap blue and red components (Bitmap file stores in incorrect order)
temp = colour_palette[index].peRed;
colour_palette[index].peRed = colour_palette[index].peBlue;
colour_palette[index].peBlue = temp;
colour_palette[index].peFlags = PC_EXPLICIT;
}
return 1;
} // end DD_Init
int DD_Shutdown ()
{
if(lpdd)
{
if (lpddsprimary)
{
lpddsprimary->Release();
lpddsprimary = NULL;
}
lpdd->Release();
lpdd = NULL;
return 1;
}
return 0;
} // end DD_Shutdown