82 lines
2.3 KiB
C
Executable file
82 lines
2.3 KiB
C
Executable file
//opengl platform specific functions for SDL - Added 2000/06/19 Matthew Mueller
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#include <SDL/SDL.h>
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#include "ogl_init.h"
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#include "vers_id.h"
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#include "error.h"
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#include "u_mem.h"
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#include "args.h"
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static int curx=-1,cury=-1,curfull=0;
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void ogl_do_fullscreen_internal(void){
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ogl_init_window(curx,cury);
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}
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void ogl_swap_buffers_internal(void){
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SDL_GL_SwapBuffers();
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}
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int ogl_init_window(int x, int y){
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if (gl_initialized){
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if (x==curx && y==cury && curfull==ogl_fullscreen)
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return 0;
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if (ogl_fullscreen || curfull)
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ogl_smash_texture_list_internal();//if we are or were fullscreen, changing vid mode will invalidate current textures
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}
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SDL_WM_SetCaption(DESCENT_VERSION " " D1X_DATE, "Descent");
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if (!SDL_SetVideoMode(x,y, 16, SDL_OPENGL | (ogl_fullscreen?SDL_FULLSCREEN:0))) {
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Error("Could not set %dx%dx16 opengl video mode\n",x,y);
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}
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SDL_ShowCursor(0);
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curx=x;cury=y;curfull=ogl_fullscreen;
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gl_initialized=1;
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return 0;
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}
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void ogl_destroy_window(void){
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if (gl_initialized){
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ogl_smash_texture_list_internal();
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SDL_ShowCursor(1);
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//gl_initialized=0;
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//well..SDL doesn't really let you kill the window.. so we just need to wait for sdl_quit
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}
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return;
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}
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void ogl_init(void){
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int t;
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if ((t=FindArg("-gl_red")))
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SDL_GL_SetAttribute( SDL_GL_RED_SIZE, atoi(Args[t+1]) );
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if ((t=FindArg("-gl_green")))
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SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, atoi(Args[t+1]) );
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if ((t=FindArg("-gl_blue")))
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SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, atoi(Args[t+1]) );
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if ((t=FindArg("-gl_alpha")))
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SDL_GL_SetAttribute( SDL_GL_ALPHA_SIZE, atoi(Args[t+1]) );
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if ((t=FindArg("-gl_buffer")))
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SDL_GL_SetAttribute( SDL_GL_BUFFER_SIZE, atoi(Args[t+1]) );
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// SDL_GL_SetAttribute( SDL_GL_RED_SIZE, 5 );
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// SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, 5 );
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// SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, 5 );
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// SDL_GL_SetAttribute( SDL_GL_ALPHA_SIZE, 8 );
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SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE,0);
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SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE,0);
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SDL_GL_SetAttribute(SDL_GL_ACCUM_RED_SIZE,0);
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SDL_GL_SetAttribute(SDL_GL_ACCUM_GREEN_SIZE,0);
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SDL_GL_SetAttribute(SDL_GL_ACCUM_BLUE_SIZE,0);
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SDL_GL_SetAttribute(SDL_GL_ACCUM_ALPHA_SIZE,0);
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SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER,1);
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}
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void ogl_close(void){
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/* if (ogl_fullscreen){
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ogl_fullscreen=0;
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ogl_do_fullscreen_internal();
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}*/
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ogl_destroy_window();
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}
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