errors with directdraw
Author
Im getting some errors when i try to compile this. I dont know how to fix them, please help!
here are the errors:
====================
main.cpp
C:\Windows\Desktop\ddtest\main.cpp(302) : error C2601: ''CreateSurface'' : local function definitions are illegal
C:\Windows\Desktop\ddtest\main.cpp(317) : error C2065: ''FILE_LEN'' : undeclared identifier
C:\Windows\Desktop\ddtest\main.cpp(317) : error C2057: expected constant expression
C:\Windows\Desktop\ddtest\main.cpp(317) : error C2466: cannot allocate an array of constant size 0
C:\Windows\Desktop\ddtest\main.cpp(318) : error C2601: ''CopyBMPToSurface'' : local function definitions are illegal
C:\Windows\Desktop\ddtest\main.cpp(358) : error C2601: ''SetColorKey'' : local function definitions are illegal
C:\Windows\Desktop\ddtest\main.cpp(367) : error C2601: ''RenderTile'' : local function definitions are illegal
C:\Windows\Desktop\ddtest\main.cpp(372) : error C2601: ''DDColorMatch'' : local function definitions are illegal
====================
#define WIN32_LEAN_AND_MEAN
#include
#include
#include
#include
#include
#include
#include
#include
#include
#define WINDOW_CLASS_NAME "WINDOW_CLASS"
#define SCREEN_WIDTH 640
#define SCREEN_HEIGHT 480
#define SCREEN_BPP 8
#define MAX_COLORS 256
typedef unsigned char UCHAR;
#define KEY_DOWN(vk_code) ((GetAsyncKeyState(vk_code) & 0x8000) ? 1 : 0)
#define KEY_UP(vk_code) ((GetAsyncKeyState(vk_code) & 0x8000) ? 0 : 1)
int DD_Init(HWND hwnd);
int DD_Shutdown(void);
//int Set_Pal_Entry(int index, int red, int green, int blue);
void Game_Init(void);
void Game_Main(void);
void Game_Shutdown(void);
void Draw_Image(void);
LPDIRECTDRAW lpdd = NULL;
LPDIRECTDRAWSURFACE lpddsprimary = NULL;
LPDIRECTDRAWPALETTE lpddpal = NULL;
//PALETTEENTRY color_palette[256];
DDSURFACEDESC ddsd;
DDSCAPS ddscaps;
HRESULT ddrval;
HWND main_window_handle = NULL;
UCHAR *video_buffer = NULL;
int DD_Init(HWND hwnd)
{
//int index;
if (DirectDrawCreate(NULL,&lpdd,NULL)!=DD_OK)
{
DD_Shutdown();
return(0);
}
if (lpdd->SetCooperativeLevel(hwnd, DDSCL_ALLOWREBOOT / DDSCL_EXCLUSIVE /
DDSCL_FULLSCREEN / DDSCL_ALLOWMODEX)!=DD_OK)
{
DD_Shutdown();
return(0);
}
if (lpdd->SetDisplayMode(SCREEN_WIDTH,SCREEN_HEIGHT,SCREEN_BPP)!=DD_OK)
{
DD_Shutdown();
return(0);
}
ddsd.dwSize = sizeof(ddsd);
ddsd.dwFlags = DDSD_CAPS;
ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE;
if
(lpdd->CreateSurface(&ddsd,&lpddsprimary,NULL)!=DD_OK)
{
DD_Shutdown();
return(0);
}
/*memset(color_palette,0,256*sizeof(PALETTEENTRY));
for (index=0; index<256; index++)
{
if ((index / 64)==0)
{
color_palette[index].peRed = index*4;
color_palette[index].peGreen = index*4;
color_palette[index].peBlue = index*4;
}
else
if ((index / 64)==1)
color_palette[index].peRed = (index%64)*4;
else
if ((index / 64)==2)
color_palette[index].peGreen = (index%64)*4;
else
if ((index / 64)==3)
color_palette[index].peBlue = (index%64)*4;
color_palette[index].peFlags = PC_NOCOLLAPSE;
}
if (lpdd->CreatePalette((DDPCAPS_8BIT / DDPCAPS_INITIALIZE),color_palette,&lpddpal,NULL)!=DD_OK)
{
DD_Shutdown();
return(0);
}
lpddsprimary->SetPalette(lpddpal);*/
return(1);
}
int DD_Shutdown(void)
{
if (lpdd)
{
if(lpddsprimary)
{
lpddsprimary->Release();
lpddsprimary = NULL;
}
lpdd->Release();
lpdd = NULL;
return(1);
}
else
return(0);
}
/*int Set_Pal_Entry(int index, int red, int green, int blue)
{
PALETTEENTRY color;
color.peRed = (BYTE)red;
color.peGreen = (BYTE)green;
color.peBlue = (BYTE)blue;
color.peFlags = PC_NOCOLLAPSE;
lpddpal->SetEntries(0,index,1,&color);
memcpy(&color_palette[index],
&color,
sizeof(PALETTEENTRY));
return(1);
}*/
LRESULT CALLBACK WindowProc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam)
{
HDC hdc;
PAINTSTRUCT ps;
switch(msg)
{
case WM_CREATE:
{
return(0);
} break;
case WM_PAINT:
{
hdc = BeginPaint(hwnd,&ps);
EndPaint(hwnd,&ps);
return(0);
} break;
case WM_DESTROY:
{
PostQuitMessage(0);
return(0);
} break;
default:break;
}
return (DefWindowProc(hwnd, msg, wparam, lparam));
}
int WINAPI WinMain( HINSTANCE hinstance,
HINSTANCE hprevinstance,
LPSTR lpcmdline,
int ncmdshow)
{
WNDCLASSEX winclass;
HWND hwnd;
MSG msg;
winclass.cbSize = sizeof(WNDCLASSEX);
winclass.style = CS_DBLCLKS / CS_OWNDC / CS_HREDRAW / CS_VREDRAW;
winclass.lpfnWndProc = WindowProc;
winclass.cbClsExtra = 0;
winclass.cbWndExtra = 0;
winclass.hInstance = hinstance;
winclass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
winclass.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
winclass.hCursor = LoadCursor(NULL, IDC_ARROW);
winclass.hbrBackground = NULL; //GetStockObject(BLACK_BRUSH);
winclass.lpszMenuName = NULL;
winclass.lpszClassName = WINDOW_CLASS_NAME;
if (!RegisterClassEx(&winclass))
return(0);
if (!(hwnd = CreateWindowEx(WS_EX_TOPMOST,
WINDOW_CLASS_NAME,
"ddtest",
WS_VISIBLE / WS_POPUP,
0,0,
GetSystemMetrics(SM_CXSCREEN),
GetSystemMetrics(SM_CYSCREEN),
NULL,
NULL,
hinstance,
NULL)))
return(0);
ShowCursor(0);
main_window_handle = hwnd;
if (!DD_Init(hwnd))
{
DestroyWindow(hwnd);
return(0);
}
Game_Init();
while(1)
{
if (PeekMessage(&msg,NULL,0,0,PM_REMOVE))
{
if (msg.message == WM_QUIT)
break;
TranslateMessage(&msg);
DispatchMessage(&msg);
}
else
{
memset(&ddsd,0,sizeof(ddsd));
ddsd.dwSize = sizeof(ddsd);
lpddsprimary->Lock(NULL,&ddsd,DDLOCK_SURFACEMEMORYPTR,NULL);
video_buffer = (UCHAR *)ddsd.lpSurface;
Game_Main();
lpddsprimary->Unlock(ddsd.lpSurface);
}
}
DD_Shutdown();
Game_Shutdown();
return(msg.wParam);
}
void Game_Init(void)
{
}
void Game_Shutdown(void)
{
}
void Game_Main(void)
{
if (KEY_DOWN(VK_ESCAPE))
PostMessage(main_window_handle,WM_CLOSE,0,0);
/*if (KEY_DOWN(VK_RIGHT))
if (++px>SCREEN_WIDTH-8) px=8;
if (KEY_DOWN(VK_LEFT))
if (--px<8) px=SCREEN_WIDTH-8;
if (KEY_DOWN(VK_UP))
if (--py<8) py=SCREEN_HEIGHT-8;
if (KEY_DOWN(VK_DOWN))
if (++py>SCREEN_HEIGHT-8) py=8;
if (KEY_DOWN(''C''))
{
}*/
}
void Draw_Image(void)
{
LPDIRECTDRAWSURFACE CreateSurface(DWORD width, DWORD height)
{
DDSURFACEDESC ddsd;
LPDIRECTDRAWSURFACE lpdds;
memset(&ddsd,0,sizeof(ddsd));
ddsd.dwSize = sizeof(ddsd);
ddsd.dwFlags = DDSD_CAPS / DDSD_WIDTH / DDSD_HEIGHT;
ddsd.dwWidth = width;
ddsd.dwHeight = height;
ddsd.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN;
lpdd->CreateSurface(&ddsd,&lpdds,NULL);
return(lpdds);
}
HRESULT CopyBMPToSurface(LPDIRECTDRAWSURFACE pddsSurface, DWORD width, DWORD height, char file[FILE_LEN])
{
BITMAP bm;
HBITMAP hbm;
HDC hdcBitmap,
hdcTexture;
DDSURFACEDESC ddsdesc;
ddsdesc.dwSize = sizeof(ddsdesc);
ddsdesc.dwFlags = DDSD_HEIGHT / DDSD_WIDTH;
pddsSurface->GetSurfaceDesc(&ddsdesc);
hbm = (HBITMAP)LoadImage( GetModuleHandle(NULL), "c:/windows/desktop/image.bmp", IMAGE_BITMAP, 0, 0, LR_CREATEDIBSECTION );
if( NULL == hbm )
{
hbm = (HBITMAP)LoadImage( NULL, "c:/windows/desktop/image.bmp", IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE/LR_CREATEDIBSECTION );
if( NULL == hbm ) return NULL;
}
hdcBitmap = CreateCompatibleDC( NULL );
if( NULL == hdcBitmap )
{
pddsSurface->Release();
return NULL;
}
SelectObject( hdcBitmap, hbm );
GetObject( hbm, sizeof(BITMAP), &bm );
DWORD x, y;
x = (ddsdesc.dwWidth / 2) - (width / 2);
y = (ddsdesc.dwHeight / 2) - (height / 2);
if( SUCCEEDED( pddsSurface->GetDC( &hdcTexture ) ) )
{
StretchBlt( hdcTexture, 0, 0, width, height,
hdcBitmap, 0, 0, bm.bmWidth, bm.bmHeight, SRCCOPY );
pddsSurface->ReleaseDC( hdcTexture );
}
DeleteDC( hdcBitmap );
DeleteObject(hbm);
return S_OK;
}
void SetColorKey(LPDIRECTDRAWSURFACE texture, BYTE r, BYTE g, BYTE b)
{
DDCOLORKEY ddck;
ddck.dwColorSpaceLowValue = DDColorMatch(texture, RGB(r, g, b));
ddck.dwColorSpaceHighValue = ddck.dwColorSpaceLowValue;
texture->SetColorKey(DDCKEY_SRCBLT, &ddck);
}
void RenderTile(RECT *srect, RECT *drect, LPDIRECTDRAWSURFACE texture)
{
lpddsback->BltFast( drect->left, drect->top, texture, srect, DDBLTFAST_WAIT / DDBLTFAST_SRCCOLORKEY);
}
DWORD DDColorMatch(IDirectDrawSurface *pdds, COLORREF rgb)
{
COLORREF rgbT;
HDC hdc;
DWORD dw = CLR_INVALID;
DDSURFACEDESC ddsd;
HRESULT hres;
if (rgb != CLR_INVALID && pdds->GetDC(&hdc) == DD_OK)
{
rgbT = GetPixel(hdc, 0, 0);
SetPixel(hdc, 0, 0, rgb);
pdds->ReleaseDC(hdc);
}
ddsd.dwSize = sizeof(ddsd);
while ((hres = pdds->Lock(NULL, &ddsd, 0, NULL)) == DDERR_WASSTILLDRAWING);
if (hres == DD_OK)
{
dw = *(DWORD *)ddsd.lpSurface;
if(ddsd.ddpfPixelFormat.dwRGBBitCount < 32)
dw &= (1 << ddsd.ddpfPixelFormat.dwRGBBitCount)-1;
pdds->Unlock(NULL);
}
if (rgb != CLR_INVALID && pdds->GetDC(&hdc) == DD_OK)
{
SetPixel(hdc, 0, 0, rgbT);
pdds->ReleaseDC(hdc);
}
return dw;
}
}
Well, you missed a ''}'' in your first function, DD_Init. That''s usually the cause of "Local function definition" errors.
Hi, your problem is not a DX prob, what you did is you defined functions in other functions. Look at the line before your CreateSurface function:
void Draw_Image(void)
{
LPDIRECTDRAWSURFACE CreateSurface(DWORD width, DWORD height)
{
Notice the CreateSurface function is declared inside the Draw_Image function. You have to close the Draw_Image and all your errors will go away, except for the FILE_LEN error where it expects a constant that has not been declared.
I recommend you indent stuff for better reading, if you have then you should have had no problem finding the error.
OneEyeLeftThanNone - bored out of my mind
oups forgot to use the code tags to get the spacing
Edited by - OneEyeLessThanNone on 4/5/00 9:44:23 AM
void Draw_Image(void)
{
LPDIRECTDRAWSURFACE CreateSurface(DWORD width, DWORD height)
{
Notice the CreateSurface function is declared inside the Draw_Image function. You have to close the Draw_Image and all your errors will go away, except for the FILE_LEN error where it expects a constant that has not been declared.
I recommend you indent stuff for better reading, if you have then you should have had no problem finding the error.
void main( void ){ do_stuff( paramater ); if( done ) exit(0); // note how indentation makes it easier to to read the // code} OneEyeLeftThanNone - bored out of my mind
oups forgot to use the code tags to get the spacing
Edited by - OneEyeLessThanNone on 4/5/00 9:44:23 AM
Never mind, you didn''t miss a bracket in the first function, but there''s probably one missing somewhere
Also here is a problem in your code.
if (lpdd->SetCooperativeLevel(hwnd, DDSCL_ALLOWREBOOT / DDSCL_EXCLUSIVE / DDSCL_FULLSCREEN / DDSCL_ALLOWMODEX) !=DD_OK)
You cant use a / in between the flags. You must use a / called a "pipe." Also i have seen this problem in other areas where flags are used. Now maybe you did have this it just didnt copy right i dont know. Also this could be a coping problem also but At the beginning you have a bunch of #include''s and nothing after them. So insead of #include you have #include
if (lpdd->SetCooperativeLevel(hwnd, DDSCL_ALLOWREBOOT / DDSCL_EXCLUSIVE / DDSCL_FULLSCREEN / DDSCL_ALLOWMODEX) !=DD_OK)
You cant use a / in between the flags. You must use a / called a "pipe." Also i have seen this problem in other areas where flags are used. Now maybe you did have this it just didnt copy right i dont know. Also this could be a coping problem also but At the beginning you have a bunch of #include''s and nothing after them. So insead of #include you have #include
Ya that #include thing is a message board error which i was not aware of. So omit that last part in my post. Sorry.
This topic is closed to new replies.
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