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

annotate docs/html/guidevideoopengl.html @ 701:aaf3b8af6616

Date: Sat, 30 Aug 2003 16:28:10 +0300 From: "Mike Gorchak" Subject: Re: SDL 1.2.6 - minor changes about shared library building under QNX6 into README.QNX - added forgotten libSDLmain.a into distribution, SDL.qpg.in - added header guards to the all headers. - fixed fullscreen double buffered mode. - fixed Photon crashes after/during using fullscreen OpenGL modes. - added GL_MakeCurrent function. - added SDL_VIDEOEXPOSE event, when OpenGL window have been resized - added more HAVE_OPENGL checks to avoid dead code compilation without using OpenGL - finished code reorganization (began into previous patches).

author	Sam Lantinga <slouken@libsdl.org>
date	Sat, 30 Aug 2003 17:07:59 +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

annotate docs/html/guidevideoopengl.html @ 701:aaf3b8af6616