Mercurial > sdl-ios-xcode
view src/video/ataricommon/SDL_atarigl_c.h @ 1303:52b5afd7ecee
Date: Tue, 05 Jul 2005 21:43:26 +1000
From: Sean Childs
Subject: [SDL] Compiling SDL 1.2.8 with the free Borland compiler
When compiling SDL 1.2.8 with the free Borland compiler, I received this
error (there is a similar error that occurs in
src\video\windx5\sdl_dx5events.c):
Error E2342 ..\..\src\video\windib\sdl_dibevents.c 189: Type mismatch in
parameter 'lpPrevWndFunc' (wanted 'int (__stdcall *)()', got 'long
(__stdcall *)(void *,unsigned int,unsigned int,long)') in function
DIB_HandleMessage
I checked the MSDN library at:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winui/winui/
windowsuserinterface/windowing/windowprocedures/windowprocedurereference/wind
owprocedurefunctions/callwindowproc.asp
and it had this to say:
If STRICT is not defined, the lpPrevWndFunc parameter has the data type
FARPROC. The FARPROC type is declared as follows:
int (FAR WINAPI * FARPROC) ()
In C, the FARPROC declaration indicates a callback function that has an
unspecified parameter list. In C++, however, the empty parameter list in
the declaration indicates that a function has no parameters. This subtle
distinction can break careless code. Following is one way to handle this
situation:
#ifdef STRICT
WNDPROC MyWindowProcedure
#else
FARPROC MyWindowProcedure
#endif
...
lResult = CallWindowProc(MyWindowProcedure, ...)
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Tue, 31 Jan 2006 15:30:42 +0000 |
parents | 2ab1cb02a44e |
children | 19418e4422cb |
line wrap: on
line source
/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2004 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with this library; if not, write to the Free Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Sam Lantinga slouken@libsdl.org */ /* Atari OSMesa.ldg implementation of SDL OpenGL support */ #ifndef _SDL_ATARIGL_H_ #define _SDL_ATARIGL_H_ #ifdef HAVE_OPENGL #include <GL/osmesa.h> #endif #include "SDL_sysvideo.h" #define _THIS SDL_VideoDevice *this struct SDL_PrivateGLData { int gl_active; /* to stop switching drivers while we have a valid context */ int gl_oldmesa; /* Old OpenGL support ? */ int gl_pixelsize; /* for CopyShadow functions */ SDL_bool gl_upsidedown; /* Some implementations draw upside down */ Uint8 *gl_shadow; /* Shadow buffer for old implementations */ /* for unsupported OSMesa buffer formats */ void (*ConvertSurface)(_THIS, SDL_Surface *surface); /* to convert the shadow buffer to the screen format */ void (*CopyShadow)(_THIS, SDL_Surface *surface); #ifdef HAVE_OPENGL OSMesaContext ctx; /* OpenGL functions */ void (*glGetIntegerv)( GLenum pname, GLint *value ); void (*glFinish)(void); void (*glFlush)(void); /* osmesa.ldg */ OSMesaContext (*OSMesaCreateContextExt)( GLenum format, GLint depthBits, GLint stencilBits, GLint accumBits, OSMesaContext sharelist); void (*OSMesaDestroyContext)( OSMesaContext ctx ); GLboolean (*OSMesaMakeCurrent)( OSMesaContext ctx, void *buffer, GLenum type, GLsizei width, GLsizei height ); void (*OSMesaPixelStore)( GLint pname, GLint value ); void * (*OSMesaGetProcAddress)( const char *funcName ); /* mesa_gl.ldg, tiny_gl.ldg */ void *(*OSMesaCreateLDG)( long format, long type, long width, long height ); void (*OSMesaDestroyLDG)(void); /* Info needed to compare existing context with new asked one */ int width, height; GLenum format; GLint depth,stencil,accum; #endif }; /* Variable names */ #define gl_active (this->gl_data->gl_active) #define gl_ctx (this->gl_data->ctx) #define gl_oldmesa (this->gl_data->gl_oldmesa) #define gl_pixelsize (this->gl_data->gl_pixelsize) #define gl_upsidedown (this->gl_data->gl_upsidedown) #define gl_shadow (this->gl_data->gl_shadow) #define gl_convert (this->gl_data->ConvertSurface) #define gl_copyshadow (this->gl_data->CopyShadow) #define gl_curformat (this->gl_data->format) #define gl_curdepth (this->gl_data->depth) #define gl_curstencil (this->gl_data->stencil) #define gl_curaccum (this->gl_data->accum) #define gl_curwidth (this->gl_data->width) #define gl_curheight (this->gl_data->height) /* OpenGL functions */ extern int SDL_AtariGL_Init(_THIS, SDL_Surface *current); extern void SDL_AtariGL_Quit(_THIS, SDL_bool unload); extern void SDL_AtariGL_InitPointers(_THIS); extern int SDL_AtariGL_LoadLibrary(_THIS, const char *path); extern void *SDL_AtariGL_GetProcAddress(_THIS, const char *proc); extern int SDL_AtariGL_GetAttribute(_THIS, SDL_GLattr attrib, int* value); extern int SDL_AtariGL_MakeCurrent(_THIS); extern void SDL_AtariGL_SwapBuffers(_THIS); #endif /* _SDL_ATARIGL_H_ */