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Diffstat (limited to 'distrib/sdl-1.2.15/src/video/ataricommon/SDL_atarigl_c.h')
| -rw-r--r-- | distrib/sdl-1.2.15/src/video/ataricommon/SDL_atarigl_c.h | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/distrib/sdl-1.2.15/src/video/ataricommon/SDL_atarigl_c.h b/distrib/sdl-1.2.15/src/video/ataricommon/SDL_atarigl_c.h new file mode 100644 index 0000000..5adcf2a --- /dev/null +++ b/distrib/sdl-1.2.15/src/video/ataricommon/SDL_atarigl_c.h @@ -0,0 +1,109 @@ +/* + SDL - Simple DirectMedia Layer + Copyright (C) 1997-2012 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 +*/ +#include "SDL_config.h" + +/* Atari OSMesa.ldg implementation of SDL OpenGL support */ + +#ifndef _SDL_ATARIGL_H_ +#define _SDL_ATARIGL_H_ + +#if SDL_VIDEO_OPENGL +#include <GL/osmesa.h> +#endif + +#include "../SDL_sysvideo.h" + +/* Hidden "this" pointer for the video functions */ +#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); + +#if SDL_VIDEO_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_ */ |