sdl-ios-xcode: docs/html/guidevideoopengl.html annotate

annotate docs/html/guidevideoopengl.html @ 610:95433459fbd2

Date: Mon, 14 Apr 2003 22:08:27 +0100 From: Patrice Mandin Subject: [SDL][PATCH] 2 patches for sdl Here are 2 patches for SDL: - One is to put the dummy video drivers at the end of the video drivers list. It gave me problems, when SDL_VIDEODRIVER is not set, and the dummy driver is used instead of the platform's driver, just because it is always available. So the dummy driver must always be at the end of the list. I suppose picogui and dc video drivers also don't work.

author	Sam Lantinga <slouken@libsdl.org>
date	Tue, 15 Apr 2003 15:46:56 +0000
parents	55f1f1b3e27d
children	355632dca928

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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"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	7 CONTENT="Modular DocBook HTML Stylesheet Version 1.64
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
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	31 WIDTH="100%"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	32 BORDER="0"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	33 CELLPADDING="0"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	34 CELLSPACING="0"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	35 ><TR
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	36 ><TH
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	37 COLSPAN="3"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	38 ALIGN="center"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	39 >SDL Library Documentation</TH
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	40 ></TR
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 ><TD
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	43 WIDTH="10%"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	44 ALIGN="left"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	45 VALIGN="bottom"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	46 ><A
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	47 HREF="guidevideo.html"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	48 >Prev</A
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	49 ></TD
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	50 ><TD
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	51 WIDTH="80%"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	52 ALIGN="center"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	53 VALIGN="bottom"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	54 >Chapter 2. Graphics and Video</TD
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	55 ><TD
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	56 WIDTH="10%"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	57 ALIGN="right"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	58 VALIGN="bottom"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	59 ><A
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	60 HREF="guideinput.html"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	61 >Next</A
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	62 ></TD
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	63 ></TR
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	64 ></TABLE
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	65 ><HR
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	66 ALIGN="LEFT"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	67 WIDTH="100%"></DIV
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	68 ><DIV
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	69 CLASS="SECT1"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	70 ><H1
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	71 CLASS="SECT1"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	72 ><A
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	73 NAME="GUIDEVIDEOOPENGL"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	74 >Using OpenGL With SDL</A
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	75 ></H1
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	76 ><P
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	77 >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	78 ><DIV
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	79 CLASS="SECT2"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	80 ><H2
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	81 CLASS="SECT2"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	82 ><A
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	83 NAME="AEN103"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	84 >Initialisation</A
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	85 ></H2
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	86 ><P
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	87 >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	88 CLASS="LITERAL"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	89 >SDL_OPENGL</TT
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	90 > to <A
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	91 HREF="sdlsetvideomode.html"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	92 ><TT
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	93 CLASS="FUNCTION"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	94 >SDL_SetVideoMode</TT
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	95 ></A
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	96 >, 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	97 HREF="sdlglsetattribute.html"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	98 ><TT
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	99 CLASS="FUNCTION"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	100 >SDL_GL_SetAttribute</TT
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	101 ></A
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	102 > and finally, if you wish to use double buffering you must specify it as a GL attribute, <I
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	103 CLASS="EMPHASIS"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	104 >not</I
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	105 > by passing the <TT
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	106 CLASS="LITERAL"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	107 >SDL_DOUBLEBUF</TT
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	108 > flag to <TT
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	109 CLASS="FUNCTION"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	110 >SDL_SetVideoMode</TT
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	111 >.</P
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	112 ><DIV
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	113 CLASS="EXAMPLE"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	114 ><A
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	115 NAME="AEN114"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	116 ></A
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 ><B
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	119 >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	120 ></P
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	121 ><PRE
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	122 CLASS="PROGRAMLISTING"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	123 > /* Information about the current video settings. */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	124 const SDL_VideoInfo* info = NULL;
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	125 /* Dimensions of our window. */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	126 int width = 0;
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	127 int height = 0;
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	128 /* Color depth in bits of our window. */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	129 int bpp = 0;
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	130 /* Flags we will pass into SDL_SetVideoMode. */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	131 int flags = 0;
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	132
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	133 /* First, initialize SDL's video subsystem. */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	134 if( SDL_Init( SDL_INIT_VIDEO ) < 0 ) {
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	135 /* Failed, exit. */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	136 fprintf( stderr, "Video initialization failed: %s\n",
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	137 SDL_GetError( ) );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	138 quit_tutorial( 1 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	139 }
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	140
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	141 /* Let's get some video information. */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	142 info = SDL_GetVideoInfo( );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	143
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	144 if( !info ) {
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	145 /* This should probably never happen. */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	146 fprintf( stderr, "Video query failed: %s\n",
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	147 SDL_GetError( ) );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	148 quit_tutorial( 1 );
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
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	151 /*
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	152 * 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	153 * 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	154 * 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	155 * 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	156 * resolution, so this is probably being overly
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	157 * safe. Under Win32, ChangeDisplaySettings
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	158 * can change the bpp.
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	159 */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	160 width = 640;
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	161 height = 480;
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	162 bpp = info->vfmt->BitsPerPixel;
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	163
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	164 /*
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	165 * Now, we want to setup our requested
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	166 * window attributes for our OpenGL window.
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	167 * 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	168 * 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	169 * depth buffer.
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 * 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	172 * buffered window. '1' turns on double
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	173 * buffering, '0' turns it off.
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	174 *
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	175 * 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	176 * the flags to SDL_SetVideoMode. That does
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	177 * not affect the GL attribute state, only
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	178 * the standard 2D blitting setup.
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	179 */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	180 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	181 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	182 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	183 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	184 SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 );
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 /*
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	187 * 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	188 * with an OpenGL window, in a fullscreen
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	189 * video mode.
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	190 *
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	191 * EXERCISE:
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	192 * Make starting windowed an option, and
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	193 * handle the resize events properly with
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	194 * glViewport.
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	195 */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	196 flags = SDL_OPENGL \| SDL_FULLSCREEN;
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	197
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	198 /*
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	199 * Set the video mode
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	200 */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	201 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	202 /*
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	203 * 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	204 * including DISPLAY not being set, the specified
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	205 * resolution not being available, etc.
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 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	208 SDL_GetError( ) );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	209 quit_tutorial( 1 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	210 }</PRE
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	211 ></DIV
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	212 ></DIV
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	213 ><DIV
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	214 CLASS="SECT2"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	215 ><H2
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	216 CLASS="SECT2"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	217 ><A
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	218 NAME="AEN117"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	219 >Drawing</A
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	220 ></H2
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	221 ><P
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	222 >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	223 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	224 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	225 use
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	226 <A
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	227 HREF="sdlglswapbuffers.html"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	228 ><TT
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	229 CLASS="FUNCTION"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	230 >SDL_GL_SwapBuffers()</TT
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	231 ></A
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	232 >
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	233 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	234 with OpenGL, use
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	235 <A
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	236 HREF="sdlglsetattribute.html"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	237 ><TT
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	238 CLASS="FUNCTION"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	239 >SDL_GL_SetAttribute</TT
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	240 ></A
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	241 >
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	242 with <TT
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	243 CLASS="LITERAL"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	244 >SDL_GL_DOUBLEBUFFER</TT
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	245 >, and use
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 HREF="sdlglgetattribute.html"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	248 ><TT
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	249 CLASS="FUNCTION"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	250 >SDL_GL_GetAttribute</TT
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	251 ></A
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	252 >
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	253 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	254 ><P
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	255 >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	256 ><DIV
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	257 CLASS="EXAMPLE"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	258 ><A
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	259 NAME="AEN128"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	260 ></A
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	261 ><P
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	262 ><B
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	263 >Example 2-8. SDL and OpenGL</B
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	264 ></P
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	265 ><PRE
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	266 CLASS="PROGRAMLISTING"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	267 >/*
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	268 * SDL OpenGL Tutorial.
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	269 * (c) Michael Vance, 2000
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	270 * briareos@lokigames.com
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	271 *
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	272 * Distributed under terms of the LGPL.
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
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	275 #include <SDL/SDL.h>
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	276 #include <GL/gl.h>
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	277 #include <GL/glu.h>
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	278
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	279 #include <stdio.h>
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	280 #include <stdlib.h>
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	281
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	282 static GLboolean should_rotate = GL_TRUE;
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	283
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	284 static void quit_tutorial( int code )
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	285 {
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	286 /*
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	287 * 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	288 * mode and restore the previous video settings,
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	289 * etc.
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	290 */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	291 SDL_Quit( );
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 /* Exit program. */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	294 exit( code );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	295 }
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 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	298 {
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	299
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	300 /*
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	301 * We're only interested if 'Esc' has
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	302 * been presssed.
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	303 *
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	304 * EXERCISE:
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	305 * 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	306 * viewing position/angle.
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	307 */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	308 switch( keysym->sym ) {
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	309 case SDLK_ESCAPE:
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	310 quit_tutorial( 0 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	311 break;
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	312 case SDLK_SPACE:
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	313 should_rotate = !should_rotate;
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	314 break;
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	315 default:
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	316 break;
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	317 }
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	318
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	319 }
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	320
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	321 static void process_events( void )
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	322 {
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	323 /* Our SDL event placeholder. */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	324 SDL_Event event;
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 /* Grab all the events off the queue. */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	327 while( SDL_PollEvent( &event ) ) {
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 switch( event.type ) {
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	330 case SDL_KEYDOWN:
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	331 /* Handle key presses. */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	332 handle_key_down( &event.key.keysym );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	333 break;
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	334 case SDL_QUIT:
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	335 /* Handle quit requests (like Ctrl-c). */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	336 quit_tutorial( 0 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	337 break;
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	338 }
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	339
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	340 }
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	341
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	342 }
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	343
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	344 static void draw_screen( void )
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 /* Our angle of rotation. */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	347 static float angle = 0.0f;
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 * EXERCISE:
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	351 * Replace this awful mess with vertex
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	352 * arrays and a call to glDrawElements.
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	353 *
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	354 * EXERCISE:
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	355 * After completing the above, change
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	356 * it to use compiled vertex arrays.
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	357 *
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	358 * EXERCISE:
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	359 * Verify my windings are correct here ;).
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	360 */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	361 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	362 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	363 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	364 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	365 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	366 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	367 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	368 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	369 static GLubyte red[] = { 255, 0, 0, 255 };
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	370 static GLubyte green[] = { 0, 255, 0, 255 };
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	371 static GLubyte blue[] = { 0, 0, 255, 255 };
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	372 static GLubyte white[] = { 255, 255, 255, 255 };
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	373 static GLubyte yellow[] = { 0, 255, 255, 255 };
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	374 static GLubyte black[] = { 0, 0, 0, 255 };
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	375 static GLubyte orange[] = { 255, 255, 0, 255 };
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	376 static GLubyte purple[] = { 255, 0, 255, 0 };
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	377
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	378 /* Clear the color and depth buffers. */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	379 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	380
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	381 /* 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	382 glMatrixMode( GL_MODELVIEW );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	383 glLoadIdentity( );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	384
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	385 /* Move down the z-axis. */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	386 glTranslatef( 0.0, 0.0, -5.0 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	387
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	388 /* Rotate. */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	389 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	390
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	391 if( should_rotate ) {
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	392
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	393 if( ++angle > 360.0f ) {
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	394 angle = 0.0f;
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	395 }
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 }
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 /* Send our triangle data to the pipeline. */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	400 glBegin( GL_TRIANGLES );
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 glColor4ubv( red );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	403 glVertex3fv( v0 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	404 glColor4ubv( green );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	405 glVertex3fv( v1 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	406 glColor4ubv( blue );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	407 glVertex3fv( v2 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	408
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	409 glColor4ubv( red );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	410 glVertex3fv( v0 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	411 glColor4ubv( blue );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	412 glVertex3fv( v2 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	413 glColor4ubv( white );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	414 glVertex3fv( v3 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	415
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	416 glColor4ubv( green );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	417 glVertex3fv( v1 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	418 glColor4ubv( black );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	419 glVertex3fv( v5 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	420 glColor4ubv( orange );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	421 glVertex3fv( v6 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	422
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	423 glColor4ubv( green );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	424 glVertex3fv( v1 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	425 glColor4ubv( orange );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	426 glVertex3fv( v6 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	427 glColor4ubv( blue );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	428 glVertex3fv( v2 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	429
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	430 glColor4ubv( black );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	431 glVertex3fv( v5 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	432 glColor4ubv( yellow );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	433 glVertex3fv( v4 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	434 glColor4ubv( purple );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	435 glVertex3fv( v7 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	436
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	437 glColor4ubv( black );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	438 glVertex3fv( v5 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	439 glColor4ubv( purple );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	440 glVertex3fv( v7 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	441 glColor4ubv( orange );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	442 glVertex3fv( v6 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	443
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	444 glColor4ubv( yellow );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	445 glVertex3fv( v4 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	446 glColor4ubv( red );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	447 glVertex3fv( v0 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	448 glColor4ubv( white );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	449 glVertex3fv( v3 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	450
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	451 glColor4ubv( yellow );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	452 glVertex3fv( v4 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	453 glColor4ubv( white );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	454 glVertex3fv( v3 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	455 glColor4ubv( purple );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	456 glVertex3fv( v7 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	457
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	458 glColor4ubv( white );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	459 glVertex3fv( v3 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	460 glColor4ubv( blue );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	461 glVertex3fv( v2 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	462 glColor4ubv( orange );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	463 glVertex3fv( v6 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	464
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	465 glColor4ubv( white );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	466 glVertex3fv( v3 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	467 glColor4ubv( orange );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	468 glVertex3fv( v6 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	469 glColor4ubv( purple );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	470 glVertex3fv( v7 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	471
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	472 glColor4ubv( green );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	473 glVertex3fv( v1 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	474 glColor4ubv( red );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	475 glVertex3fv( v0 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	476 glColor4ubv( yellow );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	477 glVertex3fv( v4 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	478
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	479 glColor4ubv( green );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	480 glVertex3fv( v1 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	481 glColor4ubv( yellow );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	482 glVertex3fv( v4 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	483 glColor4ubv( black );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	484 glVertex3fv( v5 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	485
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	486 glEnd( );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	487
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	488 /*
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	489 * EXERCISE:
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	490 * Draw text telling the user that 'Spc'
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	491 * pauses the rotation and 'Esc' quits.
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	492 * Do it using vetors and textured quads.
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 /*
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	496 * 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	497 * 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	498 * 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	499 * 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	500 *
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	501 * Double buffering prevents nasty visual tearing
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	502 * 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	503 * 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	504 */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	505 SDL_GL_SwapBuffers( );
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
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	508 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	509 {
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	510 float ratio = (float) width / (float) height;
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	511
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	512 /* Our shading model--Gouraud (smooth). */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	513 glShadeModel( GL_SMOOTH );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	514
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	515 /* Culling. */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	516 glCullFace( GL_BACK );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	517 glFrontFace( GL_CCW );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	518 glEnable( GL_CULL_FACE );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	519
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	520 /* Set the clear color. */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	521 glClearColor( 0, 0, 0, 0 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	522
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	523 /* Setup our viewport. */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	524 glViewport( 0, 0, width, height );
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 /*
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	527 * Change to the projection matrix and set
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	528 * our viewing volume.
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	529 */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	530 glMatrixMode( GL_PROJECTION );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	531 glLoadIdentity( );
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 * EXERCISE:
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	534 * Replace this with a call to glFrustum.
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 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	537 }
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 int main( int argc, char* argv[] )
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	540 {
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	541 /* Information about the current video settings. */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	542 const SDL_VideoInfo* info = NULL;
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	543 /* Dimensions of our window. */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	544 int width = 0;
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	545 int height = 0;
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	546 /* Color depth in bits of our window. */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	547 int bpp = 0;
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	548 /* Flags we will pass into SDL_SetVideoMode. */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	549 int flags = 0;
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	550
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	551 /* First, initialize SDL's video subsystem. */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	552 if( SDL_Init( SDL_INIT_VIDEO ) < 0 ) {
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	553 /* Failed, exit. */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	554 fprintf( stderr, "Video initialization failed: %s\n",
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	555 SDL_GetError( ) );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	556 quit_tutorial( 1 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	557 }
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	558
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	559 /* Let's get some video information. */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	560 info = SDL_GetVideoInfo( );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	561
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	562 if( !info ) {
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	563 /* This should probably never happen. */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	564 fprintf( stderr, "Video query failed: %s\n",
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	565 SDL_GetError( ) );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	566 quit_tutorial( 1 );
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
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	569 /*
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	570 * 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	571 * 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	572 * 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	573 * 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	574 * resolution, so this is probably being overly
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	575 * safe. Under Win32, ChangeDisplaySettings
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	576 * can change the bpp.
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	577 */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	578 width = 640;
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	579 height = 480;
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	580 bpp = info->vfmt->BitsPerPixel;
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	581
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	582 /*
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	583 * Now, we want to setup our requested
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	584 * window attributes for our OpenGL window.
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	585 * 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	586 * 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	587 * depth buffer.
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 * 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	590 * buffered window. '1' turns on double
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	591 * buffering, '0' turns it off.
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	592 *
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	593 * 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	594 * the flags to SDL_SetVideoMode. That does
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	595 * not affect the GL attribute state, only
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	596 * the standard 2D blitting setup.
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	597 */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	598 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	599 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	600 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	601 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	602 SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 );
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 /*
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	605 * 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	606 * with an OpenGL window, in a fullscreen
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	607 * video mode.
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	608 *
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	609 * EXERCISE:
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	610 * Make starting windowed an option, and
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	611 * handle the resize events properly with
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	612 * glViewport.
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	613 */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	614 flags = SDL_OPENGL \| SDL_FULLSCREEN;
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	615
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	616 /*
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	617 * Set the video mode
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	618 */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	619 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	620 /*
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	621 * 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	622 * including DISPLAY not being set, the specified
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	623 * resolution not being available, etc.
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 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	626 SDL_GetError( ) );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	627 quit_tutorial( 1 );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	628 }
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	629
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 * 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	632 * double-buffered window for use with OpenGL.
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	633 */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	634 setup_opengl( width, height );
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 * 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	638 * 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	639 */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	640 while( 1 ) {
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	641 /* Process incoming events. */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	642 process_events( );
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	643 /* Draw the screen. */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	644 draw_screen( );
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
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	647 /*
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	648 * EXERCISE:
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	649 * Record timings using SDL_GetTicks() and
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	650 * 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	651 * end.
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 /* Never reached. */
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	655 return 0;
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	656 }</PRE
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	657 ></DIV
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	658 ></DIV
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	659 ></DIV
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	660 ><DIV
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	661 CLASS="NAVFOOTER"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	662 ><HR
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	663 ALIGN="LEFT"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	664 WIDTH="100%"><TABLE
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	665 WIDTH="100%"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	666 BORDER="0"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	667 CELLPADDING="0"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	668 CELLSPACING="0"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	669 ><TR
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	670 ><TD
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	671 WIDTH="33%"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	672 ALIGN="left"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	673 VALIGN="top"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	674 ><A
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	675 HREF="guidevideo.html"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	676 >Prev</A
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 ><TD
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	679 WIDTH="34%"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	680 ALIGN="center"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	681 VALIGN="top"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	682 ><A
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	683 HREF="index.html"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	684 >Home</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="33%"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	688 ALIGN="right"
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="guideinput.html"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	692 >Next</A
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	693 ></TD
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	694 ></TR
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	695 ><TR
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	696 ><TD
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	697 WIDTH="33%"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	698 ALIGN="left"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	699 VALIGN="top"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	700 >Graphics and Video</TD
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	701 ><TD
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	702 WIDTH="34%"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	703 ALIGN="center"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	704 VALIGN="top"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	705 ><A
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	706 HREF="guidevideo.html"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	707 >Up</A
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	708 ></TD
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	709 ><TD
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	710 WIDTH="33%"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	711 ALIGN="right"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	712 VALIGN="top"
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	713 >Input handling</TD
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	714 ></TR
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	715 ></TABLE
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	716 ></DIV
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	717 ></BODY
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	718 ></HTML
55f1f1b3e27d Added new docs for SDL 1.2.1 Sam Lantinga <slouken@lokigames.com> parents: diff changeset	719 >

Mercurial > sdl-ios-xcode

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