enabled setting icon with SDL_image
[btb/d2x.git] / arch / ogl / sdlgl.c
1 /* $Id: sdlgl.c,v 1.6 2003-03-28 09:27:07 btb Exp $ */
2 /*
3  *
4  * Graphics functions for SDL-GL.
5  *
6  *
7  */
8
9 #ifdef HAVE_CONFIG_H
10 #include <conf.h>
11 #endif
12
13 #include <SDL.h>
14 #ifdef SDL_IMAGE
15 #include <SDL_image.h>
16 #endif
17
18 #include "ogl_init.h"
19 #include "vers_id.h"
20 #include "error.h"
21 #include "u_mem.h"
22 #include "args.h"
23
24 static int curx=-1,cury=-1,curfull=0;
25
26 void ogl_do_fullscreen_internal(void){
27         ogl_init_window(curx,cury);
28 }
29
30 void ogl_swap_buffers_internal(void){
31         SDL_GL_SwapBuffers();
32 }
33
34 int ogl_init_window(int x, int y){
35         if (gl_initialized){
36                 if (x==curx && y==cury && curfull==ogl_fullscreen)
37                         return 0;
38                 if (ogl_fullscreen || curfull)
39                         ogl_smash_texture_list_internal();//if we are or were fullscreen, changing vid mode will invalidate current textures
40         }
41         SDL_WM_SetCaption(DESCENT_VERSION, "Descent II");
42
43 #ifdef SDL_IMAGE
44         {
45 #include "descent.xpm"
46                 SDL_WM_SetIcon(IMG_ReadXPMFromArray(pixmap), NULL);
47         }
48 #endif
49
50         if (!SDL_SetVideoMode(x,y, 16, SDL_OPENGL | (ogl_fullscreen?SDL_FULLSCREEN:0))) {
51            Error("Could not set %dx%dx16 opengl video mode\n",x,y);
52         }
53         SDL_ShowCursor(0);
54
55         curx=x;cury=y;curfull=ogl_fullscreen;
56         gl_initialized=1;
57
58         return 0;
59 }
60
61 void ogl_destroy_window(void){
62         if (gl_initialized){
63                 ogl_smash_texture_list_internal();
64                 SDL_ShowCursor(1);
65                 //gl_initialized=0;
66                 //well..SDL doesn't really let you kill the window.. so we just need to wait for sdl_quit
67         }
68         return;
69 }
70
71 void ogl_init(void){
72         int t;
73         if ((t=FindArg("-gl_red")))
74                 SDL_GL_SetAttribute( SDL_GL_RED_SIZE, atoi(Args[t+1]) );
75         if ((t=FindArg("-gl_green")))
76                 SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, atoi(Args[t+1]) );
77         if ((t=FindArg("-gl_blue")))
78                 SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, atoi(Args[t+1]) );
79         if ((t=FindArg("-gl_alpha")))
80                 SDL_GL_SetAttribute( SDL_GL_ALPHA_SIZE, atoi(Args[t+1]) );
81         if ((t=FindArg("-gl_buffer")))
82                 SDL_GL_SetAttribute( SDL_GL_BUFFER_SIZE, atoi(Args[t+1]) );
83 //      SDL_GL_SetAttribute( SDL_GL_RED_SIZE, 5 );
84 //      SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, 5 );
85 //      SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, 5 );
86 //      SDL_GL_SetAttribute( SDL_GL_ALPHA_SIZE, 8 );
87
88
89         SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE,0);
90         SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE,0);
91         SDL_GL_SetAttribute(SDL_GL_ACCUM_RED_SIZE,0);
92         SDL_GL_SetAttribute(SDL_GL_ACCUM_GREEN_SIZE,0);
93         SDL_GL_SetAttribute(SDL_GL_ACCUM_BLUE_SIZE,0);
94         SDL_GL_SetAttribute(SDL_GL_ACCUM_ALPHA_SIZE,0);
95         SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER,1);
96
97 }
98
99 void ogl_close(void){
100 #if 0  // shouldn't really be necessary...
101         if (ogl_fullscreen){
102                 ogl_fullscreen=0;
103                 ogl_do_fullscreen_internal();
104         }
105 #endif
106         ogl_destroy_window();
107 }