From f0e5b5d2df0e75f487d1f4a71206b1901221988c Mon Sep 17 00:00:00 2001 From: Kenneth Russel Date: Thu, 2 Feb 2006 22:11:39 +0000 Subject: Fixed Issue 199: Incorporate tile rendering library With the permission of the author, Brian Paul, the Mesa tile rendering library has been incorporated under BSD-compatible licensing terms thanks to porting work by user bleb from the javagaming.org forums. Added demos.misc.TiledRendering demo creating a high-resolution screenshot of the Gears demo. git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/../svn-server-sync/jogl-demos/trunk@171 3298f667-5e0e-4b4a-8ed4-a3559d26a5f4 --- src/demos/misc/TiledRendering.java | 146 +++++++++++++++++++++++++++++++++++++ 1 file changed, 146 insertions(+) create mode 100755 src/demos/misc/TiledRendering.java diff --git a/src/demos/misc/TiledRendering.java b/src/demos/misc/TiledRendering.java new file mode 100755 index 0000000..f5b857e --- /dev/null +++ b/src/demos/misc/TiledRendering.java @@ -0,0 +1,146 @@ +package demos.misc; + +import java.awt.image.*; +import java.io.*; +import java.nio.*; +import javax.imageio.*; + +import javax.media.opengl.*; +import com.sun.opengl.util.*; + +import demos.gears.Gears; + +/** Demonstrates the TileRenderer class by rendering a large version + of the Gears demo to the specified file. */ + +public class TiledRendering { + public static void main(String[] args) throws IOException { + if (args.length != 1) { + System.out.println("Usage: java TiledRendering [output file name]"); + System.out.println("Writes output (a large version of the Gears demo) to"); + System.out.println("the specified file, using either ImageIO or the fast TGA writer"); + System.out.println("depending on the file extension."); + System.exit(1); + } + + String filename = args[0]; + File file = new File(filename); + + if (!GLDrawableFactory.getFactory().canCreateGLPbuffer()) { + System.out.println("Demo requires pbuffer support"); + System.exit(1); + } + + // Use a pbuffer for rendering + GLCapabilities caps = new GLCapabilities(); + caps.setDoubleBuffered(false); + GLPbuffer pbuffer = GLDrawableFactory.getFactory().createGLPbuffer(caps, null, + 256, 256, + null); + + // Fix the image size for now + int tileWidth = 256; + int tileHeight = 256; + int imageWidth = tileWidth * 16; + int imageHeight = tileHeight * 12; + + // Figure out the file format + TGAWriter tga = null; + BufferedImage img = null; + Buffer buf = null; + + if (filename.endsWith(".tga")) { + tga = new TGAWriter(); + tga.open(file, + imageWidth, + imageHeight, + false); + buf = tga.getImageData(); + } else { + img = new BufferedImage(imageWidth, imageHeight, BufferedImage.TYPE_3BYTE_BGR); + buf = ByteBuffer.wrap(((DataBufferByte) img.getRaster().getDataBuffer()).getData()); + } + + // Initialize the tile rendering library + TileRenderer renderer = new TileRenderer(); + renderer.setTileSize(tileWidth, tileHeight, 0); + renderer.setImageSize(imageWidth, imageHeight); + renderer.setImageBuffer(GL.GL_BGR, GL.GL_UNSIGNED_BYTE, buf); + renderer.trPerspective(20.0f, (float) imageWidth / (float) imageHeight, 5.0f, 60.0f); + + GLContext context = pbuffer.getContext(); + if (context.makeCurrent() == GLContext.CONTEXT_NOT_CURRENT) { + System.out.println("Error making pbuffer's context current"); + System.exit(1); + } + + GL gl = pbuffer.getGL(); + gl.glMatrixMode(GL.GL_MODELVIEW); + gl.glLoadIdentity(); + gl.glTranslatef(0.0f, 0.0f, -40.0f); + // Tile renderer will set up projection matrix + + do { + renderer.beginTile(gl); + drawGears(gl); + } while (renderer.endTile(gl)); + + context.release(); + + // Close things up and/or write image using ImageIO + if (tga != null) { + tga.close(); + } else { + ImageUtil.flipImageVertically(img); + if (!ImageIO.write(img, FileUtil.getFileSuffix(file), file)) { + System.err.println("Error writing file using ImageIO (unsupported file format?)"); + } + } + } + + private static void drawGears(GL gl) { + float view_rotx = 20.0f, view_roty = 30.0f, view_rotz = 0.0f; + float angle = 0.0f; + float pos[] = { 5.0f, 5.0f, 10.0f, 0.0f }; + float red[] = { 0.8f, 0.1f, 0.0f, 1.0f }; + float green[] = { 0.0f, 0.8f, 0.2f, 1.0f }; + float blue[] = { 0.2f, 0.2f, 1.0f, 1.0f }; + + gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT); + + gl.glLightfv(GL.GL_LIGHT0, GL.GL_POSITION, pos, 0); + gl.glEnable(GL.GL_CULL_FACE); + gl.glEnable(GL.GL_LIGHTING); + gl.glEnable(GL.GL_LIGHT0); + gl.glEnable(GL.GL_DEPTH_TEST); + gl.glEnable(GL.GL_NORMALIZE); + + gl.glPushMatrix(); + gl.glRotatef(view_rotx, 1.0f, 0.0f, 0.0f); + gl.glRotatef(view_roty, 0.0f, 1.0f, 0.0f); + gl.glRotatef(view_rotz, 0.0f, 0.0f, 1.0f); + + gl.glPushMatrix(); + gl.glTranslatef(-3.0f, -2.0f, 0.0f); + gl.glRotatef(angle, 0.0f, 0.0f, 1.0f); + gl.glMaterialfv(GL.GL_FRONT, GL.GL_AMBIENT_AND_DIFFUSE, red, 0); + Gears.gear(gl, 1.0f, 4.0f, 1.0f, 20, 0.7f); + gl.glPopMatrix(); + + gl.glPushMatrix(); + gl.glTranslatef(3.1f, -2.0f, 0.0f); + gl.glRotatef(-2.0f * angle - 9.0f, 0.0f, 0.0f, 1.0f); + gl.glMaterialfv(GL.GL_FRONT, GL.GL_AMBIENT_AND_DIFFUSE, green, 0); + Gears.gear(gl, 0.5f, 2.0f, 2.0f, 10, 0.7f); + gl.glPopMatrix(); + + gl.glPushMatrix(); + gl.glTranslatef(-3.1f, 4.2f, 0.0f); + gl.glRotatef(-2.0f * angle - 25.0f, 0.0f, 0.0f, 1.0f); + gl.glMaterialfv(GL.GL_FRONT, GL.GL_AMBIENT_AND_DIFFUSE, blue, 0); + Gears.gear(gl, 1.3f, 2.0f, 0.5f, 10, 0.7f); + gl.glPopMatrix(); + + gl.glPopMatrix(); + } +} -- cgit v1.2.3