annotate docs/html/guidevideoopengl.html @ 1271:092722dbc766

Whoops! (hope this compiles...)
author Sam Lantinga <slouken@libsdl.org>
date Thu, 26 Jan 2006 07:38:43 +0000
parents 355632dca928
children f12379c41042
rev   line source
55
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1 <HTML
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2 ><HEAD
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
3 ><TITLE
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
4 >Using OpenGL With SDL</TITLE
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
5 ><META
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
6 NAME="GENERATOR"
803
355632dca928 Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents: 55
diff changeset
7 CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+
55
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
8 "><LINK
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
9 REL="HOME"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
10 TITLE="SDL Library Documentation"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
11 HREF="index.html"><LINK
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
12 REL="UP"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
13 TITLE="Graphics and Video"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
14 HREF="guidevideo.html"><LINK
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
15 REL="PREVIOUS"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
16 TITLE="Graphics and Video"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
17 HREF="guidevideo.html"><LINK
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
18 REL="NEXT"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
19 TITLE="Input handling"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
20 HREF="guideinput.html"></HEAD
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
21 ><BODY
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
22 CLASS="SECT1"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
23 BGCOLOR="#FFF8DC"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
24 TEXT="#000000"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
25 LINK="#0000ee"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
26 VLINK="#551a8b"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
27 ALINK="#ff0000"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
28 ><DIV
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
29 CLASS="NAVHEADER"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
30 ><TABLE
803
355632dca928 Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents: 55
diff changeset
31 SUMMARY="Header navigation table"
55
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
32 WIDTH="100%"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
33 BORDER="0"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
34 CELLPADDING="0"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
35 CELLSPACING="0"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
36 ><TR
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
37 ><TH
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
38 COLSPAN="3"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
39 ALIGN="center"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
40 >SDL Library Documentation</TH
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
41 ></TR
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
42 ><TR
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
43 ><TD
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
44 WIDTH="10%"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
45 ALIGN="left"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
46 VALIGN="bottom"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
47 ><A
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
48 HREF="guidevideo.html"
803
355632dca928 Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents: 55
diff changeset
49 ACCESSKEY="P"
55
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
50 >Prev</A
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
51 ></TD
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
52 ><TD
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
53 WIDTH="80%"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
54 ALIGN="center"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
55 VALIGN="bottom"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
56 >Chapter 2. Graphics and Video</TD
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
57 ><TD
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
58 WIDTH="10%"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
59 ALIGN="right"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
60 VALIGN="bottom"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
61 ><A
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
62 HREF="guideinput.html"
803
355632dca928 Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents: 55
diff changeset
63 ACCESSKEY="N"
55
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
64 >Next</A
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
65 ></TD
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
66 ></TR
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
67 ></TABLE
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
68 ><HR
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
69 ALIGN="LEFT"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
70 WIDTH="100%"></DIV
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
71 ><DIV
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
72 CLASS="SECT1"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
73 ><H1
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
74 CLASS="SECT1"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
75 ><A
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
76 NAME="GUIDEVIDEOOPENGL"
803
355632dca928 Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents: 55
diff changeset
77 ></A
355632dca928 Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents: 55
diff changeset
78 >Using OpenGL With SDL</H1
55
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
79 ><P
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
80 >SDL has the ability to create and use OpenGL contexts on several platforms(Linux/X11, Win32, BeOS, MacOS Classic/Toolbox, MacOS X, FreeBSD/X11 and Solaris/X11). This allows you to use SDL's audio, event handling, threads and times in your OpenGL applications (a function often performed by GLUT).</P
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
81 ><DIV
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
82 CLASS="SECT2"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
83 ><H2
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
84 CLASS="SECT2"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
85 ><A
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
86 NAME="AEN103"
803
355632dca928 Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents: 55
diff changeset
87 ></A
355632dca928 Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents: 55
diff changeset
88 >Initialisation</H2
55
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
89 ><P
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
90 >Initialising SDL to use OpenGL is not very different to initialising SDL normally. There are three differences; you must pass <TT
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
91 CLASS="LITERAL"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
92 >SDL_OPENGL</TT
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
93 > to <A
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
94 HREF="sdlsetvideomode.html"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
95 ><TT
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
96 CLASS="FUNCTION"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
97 >SDL_SetVideoMode</TT
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
98 ></A
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
99 >, you must specify several GL attributes (depth buffer size, framebuffer sizes) using <A
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
100 HREF="sdlglsetattribute.html"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
101 ><TT
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
102 CLASS="FUNCTION"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
103 >SDL_GL_SetAttribute</TT
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
104 ></A
803
355632dca928 Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents: 55
diff changeset
105 > and finally, if you wish to use double buffering you must specify it as a GL attribute, <SPAN
355632dca928 Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents: 55
diff changeset
106 CLASS="emphasis"
355632dca928 Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents: 55
diff changeset
107 ><I
55
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
108 CLASS="EMPHASIS"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
109 >not</I
803
355632dca928 Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents: 55
diff changeset
110 ></SPAN
55
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
111 > by passing the <TT
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
112 CLASS="LITERAL"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
113 >SDL_DOUBLEBUF</TT
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
114 > flag to <TT
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
115 CLASS="FUNCTION"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
116 >SDL_SetVideoMode</TT
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
117 >.</P
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
118 ><DIV
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
119 CLASS="EXAMPLE"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
120 ><A
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
121 NAME="AEN114"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
122 ></A
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
123 ><P
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
124 ><B
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
125 >Example 2-7. Initializing SDL with OpenGL</B
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
126 ></P
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
127 ><PRE
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
128 CLASS="PROGRAMLISTING"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
129 > /* Information about the current video settings. */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
130 const SDL_VideoInfo* info = NULL;
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
131 /* Dimensions of our window. */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
132 int width = 0;
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
133 int height = 0;
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
134 /* Color depth in bits of our window. */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
135 int bpp = 0;
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
136 /* Flags we will pass into SDL_SetVideoMode. */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
137 int flags = 0;
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
138
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
139 /* First, initialize SDL's video subsystem. */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
140 if( SDL_Init( SDL_INIT_VIDEO ) &#60; 0 ) {
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
141 /* Failed, exit. */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
142 fprintf( stderr, "Video initialization failed: %s\n",
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
143 SDL_GetError( ) );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
144 quit_tutorial( 1 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
145 }
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
146
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
147 /* Let's get some video information. */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
148 info = SDL_GetVideoInfo( );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
149
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
150 if( !info ) {
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
151 /* This should probably never happen. */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
152 fprintf( stderr, "Video query failed: %s\n",
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
153 SDL_GetError( ) );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
154 quit_tutorial( 1 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
155 }
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
156
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
157 /*
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
158 * Set our width/height to 640/480 (you would
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
159 * of course let the user decide this in a normal
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
160 * app). We get the bpp we will request from
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
161 * the display. On X11, VidMode can't change
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
162 * resolution, so this is probably being overly
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
163 * safe. Under Win32, ChangeDisplaySettings
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
164 * can change the bpp.
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
165 */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
166 width = 640;
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
167 height = 480;
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
168 bpp = info-&#62;vfmt-&#62;BitsPerPixel;
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
169
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
170 /*
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
171 * Now, we want to setup our requested
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
172 * window attributes for our OpenGL window.
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
173 * We want *at least* 5 bits of red, green
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
174 * and blue. We also want at least a 16-bit
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
175 * depth buffer.
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
176 *
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
177 * The last thing we do is request a double
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
178 * buffered window. '1' turns on double
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
179 * buffering, '0' turns it off.
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
180 *
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
181 * Note that we do not use SDL_DOUBLEBUF in
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
182 * the flags to SDL_SetVideoMode. That does
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
183 * not affect the GL attribute state, only
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
184 * the standard 2D blitting setup.
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
185 */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
186 SDL_GL_SetAttribute( SDL_GL_RED_SIZE, 5 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
187 SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, 5 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
188 SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, 5 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
189 SDL_GL_SetAttribute( SDL_GL_DEPTH_SIZE, 16 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
190 SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
191
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
192 /*
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
193 * We want to request that SDL provide us
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
194 * with an OpenGL window, in a fullscreen
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
195 * video mode.
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
196 *
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
197 * EXERCISE:
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
198 * Make starting windowed an option, and
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
199 * handle the resize events properly with
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
200 * glViewport.
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
201 */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
202 flags = SDL_OPENGL | SDL_FULLSCREEN;
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
203
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
204 /*
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
205 * Set the video mode
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
206 */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
207 if( SDL_SetVideoMode( width, height, bpp, flags ) == 0 ) {
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
208 /*
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
209 * This could happen for a variety of reasons,
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
210 * including DISPLAY not being set, the specified
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
211 * resolution not being available, etc.
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
212 */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
213 fprintf( stderr, "Video mode set failed: %s\n",
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
214 SDL_GetError( ) );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
215 quit_tutorial( 1 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
216 }</PRE
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
217 ></DIV
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
218 ></DIV
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
219 ><DIV
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
220 CLASS="SECT2"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
221 ><H2
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
222 CLASS="SECT2"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
223 ><A
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
224 NAME="AEN117"
803
355632dca928 Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents: 55
diff changeset
225 ></A
355632dca928 Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents: 55
diff changeset
226 >Drawing</H2
55
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
227 ><P
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
228 >Apart from initialisation, using OpenGL within SDL is the same as using OpenGL
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
229 with any other API, e.g. GLUT. You still use all the same function calls and
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
230 data types. However if you are using a double-buffered display, then you must
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
231 use
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
232 <A
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
233 HREF="sdlglswapbuffers.html"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
234 ><TT
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
235 CLASS="FUNCTION"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
236 >SDL_GL_SwapBuffers()</TT
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
237 ></A
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
238 >
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
239 to swap the buffers and update the display. To request double-buffering
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
240 with OpenGL, use
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
241 <A
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
242 HREF="sdlglsetattribute.html"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
243 ><TT
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
244 CLASS="FUNCTION"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
245 >SDL_GL_SetAttribute</TT
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
246 ></A
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
247 >
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
248 with <TT
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
249 CLASS="LITERAL"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
250 >SDL_GL_DOUBLEBUFFER</TT
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
251 >, and use
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
252 <A
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
253 HREF="sdlglgetattribute.html"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
254 ><TT
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
255 CLASS="FUNCTION"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
256 >SDL_GL_GetAttribute</TT
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
257 ></A
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
258 >
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
259 to see if you actually got it.</P
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
260 ><P
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
261 >A full example code listing is now presented below.</P
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
262 ><DIV
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
263 CLASS="EXAMPLE"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
264 ><A
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
265 NAME="AEN128"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
266 ></A
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
267 ><P
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
268 ><B
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
269 >Example 2-8. SDL and OpenGL</B
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
270 ></P
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
271 ><PRE
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
272 CLASS="PROGRAMLISTING"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
273 >/*
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
274 * SDL OpenGL Tutorial.
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
275 * (c) Michael Vance, 2000
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
276 * briareos@lokigames.com
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
277 *
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
278 * Distributed under terms of the LGPL.
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
279 */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
280
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
281 #include &#60;SDL/SDL.h&#62;
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
282 #include &#60;GL/gl.h&#62;
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
283 #include &#60;GL/glu.h&#62;
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
284
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
285 #include &#60;stdio.h&#62;
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
286 #include &#60;stdlib.h&#62;
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
287
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
288 static GLboolean should_rotate = GL_TRUE;
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
289
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
290 static void quit_tutorial( int code )
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
291 {
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
292 /*
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
293 * Quit SDL so we can release the fullscreen
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
294 * mode and restore the previous video settings,
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
295 * etc.
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
296 */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
297 SDL_Quit( );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
298
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
299 /* Exit program. */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
300 exit( code );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
301 }
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
302
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
303 static void handle_key_down( SDL_keysym* keysym )
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
304 {
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
305
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
306 /*
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
307 * We're only interested if 'Esc' has
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
308 * been presssed.
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
309 *
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
310 * EXERCISE:
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
311 * Handle the arrow keys and have that change the
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
312 * viewing position/angle.
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
313 */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
314 switch( keysym-&#62;sym ) {
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
315 case SDLK_ESCAPE:
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
316 quit_tutorial( 0 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
317 break;
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
318 case SDLK_SPACE:
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
319 should_rotate = !should_rotate;
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
320 break;
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
321 default:
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
322 break;
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
323 }
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
324
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
325 }
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
326
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
327 static void process_events( void )
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
328 {
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
329 /* Our SDL event placeholder. */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
330 SDL_Event event;
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
331
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
332 /* Grab all the events off the queue. */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
333 while( SDL_PollEvent( &#38;event ) ) {
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
334
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
335 switch( event.type ) {
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
336 case SDL_KEYDOWN:
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
337 /* Handle key presses. */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
338 handle_key_down( &#38;event.key.keysym );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
339 break;
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
340 case SDL_QUIT:
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
341 /* Handle quit requests (like Ctrl-c). */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
342 quit_tutorial( 0 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
343 break;
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
344 }
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
345
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
346 }
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
347
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
348 }
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
349
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
350 static void draw_screen( void )
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
351 {
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
352 /* Our angle of rotation. */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
353 static float angle = 0.0f;
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
354
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
355 /*
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
356 * EXERCISE:
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
357 * Replace this awful mess with vertex
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
358 * arrays and a call to glDrawElements.
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
359 *
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
360 * EXERCISE:
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
361 * After completing the above, change
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
362 * it to use compiled vertex arrays.
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
363 *
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
364 * EXERCISE:
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
365 * Verify my windings are correct here ;).
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
366 */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
367 static GLfloat v0[] = { -1.0f, -1.0f, 1.0f };
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
368 static GLfloat v1[] = { 1.0f, -1.0f, 1.0f };
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
369 static GLfloat v2[] = { 1.0f, 1.0f, 1.0f };
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
370 static GLfloat v3[] = { -1.0f, 1.0f, 1.0f };
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
371 static GLfloat v4[] = { -1.0f, -1.0f, -1.0f };
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
372 static GLfloat v5[] = { 1.0f, -1.0f, -1.0f };
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
373 static GLfloat v6[] = { 1.0f, 1.0f, -1.0f };
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
374 static GLfloat v7[] = { -1.0f, 1.0f, -1.0f };
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
375 static GLubyte red[] = { 255, 0, 0, 255 };
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
376 static GLubyte green[] = { 0, 255, 0, 255 };
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
377 static GLubyte blue[] = { 0, 0, 255, 255 };
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
378 static GLubyte white[] = { 255, 255, 255, 255 };
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
379 static GLubyte yellow[] = { 0, 255, 255, 255 };
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
380 static GLubyte black[] = { 0, 0, 0, 255 };
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
381 static GLubyte orange[] = { 255, 255, 0, 255 };
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
382 static GLubyte purple[] = { 255, 0, 255, 0 };
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
383
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
384 /* Clear the color and depth buffers. */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
385 glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
386
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
387 /* We don't want to modify the projection matrix. */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
388 glMatrixMode( GL_MODELVIEW );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
389 glLoadIdentity( );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
390
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
391 /* Move down the z-axis. */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
392 glTranslatef( 0.0, 0.0, -5.0 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
393
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
394 /* Rotate. */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
395 glRotatef( angle, 0.0, 1.0, 0.0 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
396
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
397 if( should_rotate ) {
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
398
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
399 if( ++angle &#62; 360.0f ) {
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
400 angle = 0.0f;
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
401 }
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
402
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
403 }
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
404
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
405 /* Send our triangle data to the pipeline. */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
406 glBegin( GL_TRIANGLES );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
407
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
408 glColor4ubv( red );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
409 glVertex3fv( v0 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
410 glColor4ubv( green );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
411 glVertex3fv( v1 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
412 glColor4ubv( blue );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
413 glVertex3fv( v2 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
414
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
415 glColor4ubv( red );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
416 glVertex3fv( v0 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
417 glColor4ubv( blue );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
418 glVertex3fv( v2 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
419 glColor4ubv( white );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
420 glVertex3fv( v3 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
421
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
422 glColor4ubv( green );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
423 glVertex3fv( v1 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
424 glColor4ubv( black );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
425 glVertex3fv( v5 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
426 glColor4ubv( orange );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
427 glVertex3fv( v6 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
428
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
429 glColor4ubv( green );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
430 glVertex3fv( v1 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
431 glColor4ubv( orange );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
432 glVertex3fv( v6 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
433 glColor4ubv( blue );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
434 glVertex3fv( v2 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
435
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
436 glColor4ubv( black );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
437 glVertex3fv( v5 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
438 glColor4ubv( yellow );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
439 glVertex3fv( v4 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
440 glColor4ubv( purple );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
441 glVertex3fv( v7 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
442
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
443 glColor4ubv( black );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
444 glVertex3fv( v5 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
445 glColor4ubv( purple );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
446 glVertex3fv( v7 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
447 glColor4ubv( orange );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
448 glVertex3fv( v6 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
449
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
450 glColor4ubv( yellow );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
451 glVertex3fv( v4 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
452 glColor4ubv( red );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
453 glVertex3fv( v0 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
454 glColor4ubv( white );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
455 glVertex3fv( v3 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
456
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
457 glColor4ubv( yellow );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
458 glVertex3fv( v4 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
459 glColor4ubv( white );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
460 glVertex3fv( v3 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
461 glColor4ubv( purple );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
462 glVertex3fv( v7 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
463
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
464 glColor4ubv( white );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
465 glVertex3fv( v3 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
466 glColor4ubv( blue );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
467 glVertex3fv( v2 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
468 glColor4ubv( orange );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
469 glVertex3fv( v6 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
470
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
471 glColor4ubv( white );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
472 glVertex3fv( v3 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
473 glColor4ubv( orange );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
474 glVertex3fv( v6 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
475 glColor4ubv( purple );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
476 glVertex3fv( v7 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
477
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
478 glColor4ubv( green );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
479 glVertex3fv( v1 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
480 glColor4ubv( red );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
481 glVertex3fv( v0 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
482 glColor4ubv( yellow );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
483 glVertex3fv( v4 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
484
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
485 glColor4ubv( green );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
486 glVertex3fv( v1 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
487 glColor4ubv( yellow );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
488 glVertex3fv( v4 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
489 glColor4ubv( black );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
490 glVertex3fv( v5 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
491
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
492 glEnd( );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
493
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
494 /*
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
495 * EXERCISE:
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
496 * Draw text telling the user that 'Spc'
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
497 * pauses the rotation and 'Esc' quits.
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
498 * Do it using vetors and textured quads.
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
499 */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
500
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
501 /*
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
502 * Swap the buffers. This this tells the driver to
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
503 * render the next frame from the contents of the
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
504 * back-buffer, and to set all rendering operations
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
505 * to occur on what was the front-buffer.
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
506 *
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
507 * Double buffering prevents nasty visual tearing
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
508 * from the application drawing on areas of the
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
509 * screen that are being updated at the same time.
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
510 */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
511 SDL_GL_SwapBuffers( );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
512 }
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
513
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
514 static void setup_opengl( int width, int height )
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
515 {
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
516 float ratio = (float) width / (float) height;
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
517
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
518 /* Our shading model--Gouraud (smooth). */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
519 glShadeModel( GL_SMOOTH );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
520
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
521 /* Culling. */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
522 glCullFace( GL_BACK );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
523 glFrontFace( GL_CCW );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
524 glEnable( GL_CULL_FACE );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
525
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
526 /* Set the clear color. */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
527 glClearColor( 0, 0, 0, 0 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
528
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
529 /* Setup our viewport. */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
530 glViewport( 0, 0, width, height );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
531
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
532 /*
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
533 * Change to the projection matrix and set
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
534 * our viewing volume.
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
535 */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
536 glMatrixMode( GL_PROJECTION );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
537 glLoadIdentity( );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
538 /*
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
539 * EXERCISE:
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
540 * Replace this with a call to glFrustum.
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
541 */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
542 gluPerspective( 60.0, ratio, 1.0, 1024.0 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
543 }
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
544
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
545 int main( int argc, char* argv[] )
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
546 {
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
547 /* Information about the current video settings. */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
548 const SDL_VideoInfo* info = NULL;
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
549 /* Dimensions of our window. */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
550 int width = 0;
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
551 int height = 0;
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
552 /* Color depth in bits of our window. */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
553 int bpp = 0;
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
554 /* Flags we will pass into SDL_SetVideoMode. */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
555 int flags = 0;
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
556
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
557 /* First, initialize SDL's video subsystem. */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
558 if( SDL_Init( SDL_INIT_VIDEO ) &#60; 0 ) {
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
559 /* Failed, exit. */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
560 fprintf( stderr, "Video initialization failed: %s\n",
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
561 SDL_GetError( ) );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
562 quit_tutorial( 1 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
563 }
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
564
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
565 /* Let's get some video information. */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
566 info = SDL_GetVideoInfo( );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
567
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
568 if( !info ) {
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
569 /* This should probably never happen. */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
570 fprintf( stderr, "Video query failed: %s\n",
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
571 SDL_GetError( ) );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
572 quit_tutorial( 1 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
573 }
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
574
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
575 /*
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
576 * Set our width/height to 640/480 (you would
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
577 * of course let the user decide this in a normal
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
578 * app). We get the bpp we will request from
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
579 * the display. On X11, VidMode can't change
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
580 * resolution, so this is probably being overly
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
581 * safe. Under Win32, ChangeDisplaySettings
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
582 * can change the bpp.
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
583 */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
584 width = 640;
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
585 height = 480;
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
586 bpp = info-&#62;vfmt-&#62;BitsPerPixel;
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
587
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
588 /*
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
589 * Now, we want to setup our requested
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
590 * window attributes for our OpenGL window.
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
591 * We want *at least* 5 bits of red, green
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
592 * and blue. We also want at least a 16-bit
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
593 * depth buffer.
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
594 *
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
595 * The last thing we do is request a double
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
596 * buffered window. '1' turns on double
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
597 * buffering, '0' turns it off.
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
598 *
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
599 * Note that we do not use SDL_DOUBLEBUF in
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
600 * the flags to SDL_SetVideoMode. That does
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
601 * not affect the GL attribute state, only
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
602 * the standard 2D blitting setup.
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
603 */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
604 SDL_GL_SetAttribute( SDL_GL_RED_SIZE, 5 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
605 SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, 5 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
606 SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, 5 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
607 SDL_GL_SetAttribute( SDL_GL_DEPTH_SIZE, 16 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
608 SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
609
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
610 /*
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
611 * We want to request that SDL provide us
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
612 * with an OpenGL window, in a fullscreen
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
613 * video mode.
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
614 *
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
615 * EXERCISE:
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
616 * Make starting windowed an option, and
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
617 * handle the resize events properly with
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
618 * glViewport.
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
619 */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
620 flags = SDL_OPENGL | SDL_FULLSCREEN;
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
621
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
622 /*
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
623 * Set the video mode
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
624 */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
625 if( SDL_SetVideoMode( width, height, bpp, flags ) == 0 ) {
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
626 /*
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
627 * This could happen for a variety of reasons,
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
628 * including DISPLAY not being set, the specified
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
629 * resolution not being available, etc.
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
630 */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
631 fprintf( stderr, "Video mode set failed: %s\n",
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
632 SDL_GetError( ) );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
633 quit_tutorial( 1 );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
634 }
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
635
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
636 /*
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
637 * At this point, we should have a properly setup
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
638 * double-buffered window for use with OpenGL.
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
639 */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
640 setup_opengl( width, height );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
641
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
642 /*
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
643 * Now we want to begin our normal app process--
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
644 * an event loop with a lot of redrawing.
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
645 */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
646 while( 1 ) {
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
647 /* Process incoming events. */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
648 process_events( );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
649 /* Draw the screen. */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
650 draw_screen( );
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
651 }
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
652
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
653 /*
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
654 * EXERCISE:
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
655 * Record timings using SDL_GetTicks() and
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
656 * and print out frames per second at program
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
657 * end.
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
658 */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
659
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
660 /* Never reached. */
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
661 return 0;
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
662 }</PRE
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
663 ></DIV
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
664 ></DIV
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
665 ></DIV
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
666 ><DIV
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
667 CLASS="NAVFOOTER"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
668 ><HR
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
669 ALIGN="LEFT"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
670 WIDTH="100%"><TABLE
803
355632dca928 Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents: 55
diff changeset
671 SUMMARY="Footer navigation table"
55
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
672 WIDTH="100%"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
673 BORDER="0"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
674 CELLPADDING="0"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
675 CELLSPACING="0"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
676 ><TR
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
677 ><TD
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
678 WIDTH="33%"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
679 ALIGN="left"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
680 VALIGN="top"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
681 ><A
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
682 HREF="guidevideo.html"
803
355632dca928 Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents: 55
diff changeset
683 ACCESSKEY="P"
55
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
684 >Prev</A
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
685 ></TD
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
686 ><TD
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
687 WIDTH="34%"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
688 ALIGN="center"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
689 VALIGN="top"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
690 ><A
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
691 HREF="index.html"
803
355632dca928 Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents: 55
diff changeset
692 ACCESSKEY="H"
55
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
693 >Home</A
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
694 ></TD
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
695 ><TD
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
696 WIDTH="33%"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
697 ALIGN="right"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
698 VALIGN="top"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
699 ><A
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
700 HREF="guideinput.html"
803
355632dca928 Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents: 55
diff changeset
701 ACCESSKEY="N"
55
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
702 >Next</A
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
703 ></TD
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
704 ></TR
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
705 ><TR
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
706 ><TD
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
707 WIDTH="33%"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
708 ALIGN="left"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
709 VALIGN="top"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
710 >Graphics and Video</TD
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
711 ><TD
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
712 WIDTH="34%"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
713 ALIGN="center"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
714 VALIGN="top"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
715 ><A
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
716 HREF="guidevideo.html"
803
355632dca928 Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents: 55
diff changeset
717 ACCESSKEY="U"
55
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
718 >Up</A
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
719 ></TD
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
720 ><TD
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
721 WIDTH="33%"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
722 ALIGN="right"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
723 VALIGN="top"
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
724 >Input handling</TD
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
725 ></TR
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
726 ></TABLE
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
727 ></DIV
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
728 ></BODY
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
729 ></HTML
55f1f1b3e27d Added new docs for SDL 1.2.1
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
730 >