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Implemented Pbuffers on win32 and linux (render to texture will be done later)

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Implemented native cursor caps (one bit transparancy, alpha translucency and animations)
This commit is contained in:
Elias Naur 2003-05-20 12:20:13 +00:00
parent 586c0f4647
commit 9bcaa18c3d
22 changed files with 1262 additions and 201 deletions
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12
src/java/org/lwjgl/Window.java
View file

@ -71,15 +71,15 @@ public abstract class Window {
*
* Only one Window can be created() at a time; to create another Window you must
* first destroy() the first window.
*
* The dimensions may be ignored if the window cannot be made non-
* fullscreen. The position may be ignored in either case.
*
* The dimensions may be ignored if the window cannot be made non-
* fullscreen. The position may be ignored in either case.
*
* @param title The window's title
* @param x Position on x axis of top left corner of window.
* @param y Position on y axis of top left corner of window.
* @param width Width of window
* @param height Height of window
* @param y Position on y axis of top left corner of window.
* @param width Width of window
* @param height Height of window
* @throws RuntimeException if you attempt to create more than one window at the same time
*/
protected Window(String title, int x, int y, int width, int height) {

8
src/java/org/lwjgl/input/Cursor.java
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@ -64,12 +64,14 @@ public class Cursor {
* @param height cursor image height
* @param xHotspot the x coordinate of the cursor hotspot
* @param yHotspot the y coordinate of the cursor hotspot
* @param numImages number of cursor images specified. Must be 1 if animations are not supported.
* @param cursorAddress the address of an int array containing the cursor image
* @param delayAddresses the address of animation frame delays, if numImages is greater than 1, else Sys.NULL
* @throws Exception if the cursor could not be created for any reason
*/
public Cursor(int width, int height, int xHotspot, int yHotspot, int imageAddress) throws Exception {
public Cursor(int width, int height, int xHotspot, int yHotspot, int numImages, int imageAddress, int delayAddresses) throws Exception {
assert Mouse.isCreated();
nativeHandle = nCreateCursor(width, height, xHotspot, yHotspot, imageAddress);
nativeHandle = nCreateCursor(width, height, xHotspot, yHotspot, numImages, imageAddress, delayAddresses);
}
/**
@ -89,7 +91,7 @@ public class Cursor {
/**
* Native method to create a native cursor
*/
private static native int nCreateCursor(int width, int height, int xHotspot, int yHotspot, int imageAddresses);
private static native int nCreateCursor(int width, int height, int xHotspot, int yHotspot, int numImages, int imageAddresses, int delayAddresses);
/**
* Native method to destroy a native cursor

25
src/java/org/lwjgl/input/Mouse.java
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@ -48,6 +48,9 @@ import org.lwjgl.*;
* @version $Revision$
*/
public class Mouse {
public final static int CURSOR_ONE_BIT_TRANSPARANCY = 1;
public final static int CURSOR_8_BIT_ALPHA = 2;
public final static int CURSOR_ANIMATION = 4;
/** Has the mouse been created? */
private static boolean created;
@ -92,17 +95,21 @@ public class Mouse {
}
/**
* Check native cursor support
* @return true if native cursors are supported
* Get the capabilities of the native cursor. Return a bit mask of the native cursor capabilities.
* The CURSOR_ONE_BIT_TRANSPARANCY indicates support for cursors with one bit transparancy,
* the CURSOR_8_BIT_ALPHA indicates support for 8 bit alpha and CURSOR_ANIMATION indicates
* support for cursor animations.
*
* @return A bit mask with native cursor capabilities.
*/
public static boolean isNativeCursorSupported() {
return nIsNativeCursorSupported();
public static int getNativeCursorCaps() {
return nGetNativeCursorCaps();
}
/**
* Native function to determine native cursor support
*/
private static native boolean nIsNativeCursorSupported();
private static native int nGetNativeCursorCaps();
/**
* Binds a native cursor. If the cursor argument is null, the
@ -120,7 +127,7 @@ public class Mouse {
* @throws Exception if the cursor could not be set for any reason
*/
public static Cursor setNativeCursor(Cursor cursor) throws Exception {
assert created && isNativeCursorSupported();
assert created && ((getNativeCursorCaps() | CURSOR_ONE_BIT_TRANSPARANCY) != 0);
Cursor oldCursor = currentCursor;
currentCursor = cursor;
if (currentCursor != null) {
@ -136,7 +143,8 @@ public class Mouse {
/**
* Gets the minimum size of a native cursor. Can only be called if
* The Mouse is created and isNativeCursorSupported() returns true
* The Mouse is created and cursor caps includes at least
* CURSOR_ONE_BIT_TRANSPARANCY.
*
* @return the maximum size of a native cursor
*/
@ -149,7 +157,8 @@ public class Mouse {
/**
* Gets the maximum size of a native cursor. Can only be called if
* The Mouse is created and isNativeCursorSupported() returns true
* The Mouse is created and cursor caps includes at least
* CURSOR_ONE_BIT_TRANSPARANCY.
*
* @return the maximum size of a native cursor
*/

6
src/java/org/lwjgl/opengl/BaseGL.java
View file

@ -88,12 +88,12 @@ public class BaseGL extends Window {
* support windowed mode, then the width and height must match the current
* display resolution, or an Exception will be thrown. Otherwise a fullscreen
* window will be created.
*
*
* @param title The title of the window
* @param x The position of the window on the x axis. May be ignored.
* @param y The position of the window on the y axis. May be ignored.
* @param y The position of the window on the y axis. May be ignored.
* @param width The width of the window's client area
* @param height The height of the window's client area
* @param height The height of the window's client area
* @param bpp Require colour bits
* @param alpha Required alpha bits
* @param depth Required depth bits

162
src/java/org/lwjgl/opengl/Pbuffer.java Normal file
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@ -0,0 +1,162 @@
/*
* Copyright (c) 2002 Lightweight Java Game Library Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of 'Light Weight Java Game Library' nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.lwjgl.opengl;
import org.lwjgl.*;
import org.lwjgl.Window;
/**
* $Id$
*
* Pbuffer encapsulates an OpenGL pbuffer.
*
* Each instance of GL is only valid in the thread that creates it.
* In addition, only one instance of an OpenGL window or Pbuffer may be
* the current GL context in any one thread. To make a GL instance the
* current context, use makeCurrent().
*
* @author elias_naur <elias_naur@users.sourceforge.net>
* @version $Revision$
*/
public class Pbuffer {
public final static int PBUFFER_SUPPORTED = 1;
static {
System.loadLibrary(Sys.getLibraryName());
}
/** Handle to the native GL rendering context */
protected final int handle;
/** Current Pbuffer */
private static Pbuffer currentBuffer = null;
/**
* Construct an instance of a Pbuffer. If this fails then an Exception will be thrown.
* The buffer is single-buffered.
*
* NOTE: An OpenGL window must be created before a Pbuffer can be created. The Pbuffer will
* have its own context that shares display lists and textures with the OpenGL window context,
* but it will have its own OpenGL state. Therefore, state changes to a pbuffer will not be seen
* in the window context and vice versa.
*
* NOTE: Some OpenGL implementations requires the shared contexts to use the same pixel format.
* So if possible, use the same bpp, alpha, depth and stencil values used to create the main window.
*
* @param width Pbuffer width
* @param height Pbuffer height
* @param bpp Minimum bits per pixel
* @param alpha Minimum bits per pixel in alpha buffer
* @param depth Minimum bits per pixel in depth buffer
* @param stencil Minimum bits per pixel in stencil buffer
*/
public Pbuffer(int width, int height, int bpp, int alpha, int depth, int stencil) throws Exception {
handle = nCreate(width, height, bpp, alpha, depth, stencil);
}
/**
* Method to release the current Pbuffer context and make the OpenGL window current.
*/
public static void releaseContext() {
currentBuffer = null;
nReleaseContext();
}
/**
* Method to test for validity of the buffer. If this function returns true,
* the buffer contents is lost. The buffer can still be used, but the results are undefined.
* The application is expected to release the buffer if needed, destroy it and recreate a new
* buffer.
*
* @return true if the buffer is lost and destroyed, false if the buffer is valid.
*/
public boolean isBufferLost() {
return nIsBufferLost(handle);
}
/**
* Native method to test for buffer integrity
*/
private native static boolean nIsBufferLost(int handle);
/**
* Native method to release the context.
*/
private native static void nReleaseContext();
/**
* Method to make the Pbuffer context current. All subsequent OpenGL
* calls will go to this buffer.
*/
public void makeCurrent() {
currentBuffer = this;
nMakeCurrent(handle);
}
/**
* Native method to make a pbuffer current.
*/
private native static void nMakeCurrent(int handle);
/**
* Gets the Pbuffer capabilities. Only the flag PBUFFER_SUPPORTED is
* available, and indicates that Pbuffers can be created.
*
* @return a bitmask of Pbuffer capabilities.
*/
public static native int getPbufferCaps();
/**
* Native method to create a Pbuffer
*/
private native static int nCreate(
int width,
int height,
int bpp,
int alpha,
int depth,
int stencil) throws Exception;
/**
* Destroys the Pbuffer. The buffer must not be current.
*/
public void destroy() {
assert currentBuffer != this : "Pbuffers must not be current when releasing it";
nDestroy(handle);
}
/**
* Natively destroy any GL-related stuff
*/
private native static void nDestroy(int handle);
}

28
src/java/org/lwjgl/test/input/HWCursorTest.java
View file

@ -104,19 +104,19 @@ public class HWCursorTest {
} catch (Exception e) {
e.printStackTrace();
}
if (!Mouse.isNativeCursorSupported()) {
if ((Mouse.getNativeCursorCaps() & Mouse.CURSOR_ONE_BIT_TRANSPARANCY) == 0) {
System.out.println("No HW cursor support!");
System.exit(0);
}
System.out.println("Maximum native cursor size: " + Mouse.getMaxCursorSize() + ", min size: " + Mouse.getMinCursorSize());
mouse_x = mouse_y = 0;
// int num_images = 3;
int num_images = 3;
int image_size = Mouse.getMaxCursorSize()*Mouse.getMaxCursorSize();
IntBuffer cursor_images = ByteBuffer.allocateDirect(/*num_images**/image_size*4).order(ByteOrder.nativeOrder()).asIntBuffer();
/* IntBuffer delays = ByteBuffer.allocateDirect(num_images*4).order(ByteOrder.nativeOrder()).asIntBuffer();
IntBuffer cursor_images = ByteBuffer.allocateDirect(num_images*image_size*4).order(ByteOrder.nativeOrder()).asIntBuffer();
IntBuffer delays = ByteBuffer.allocateDirect(num_images*4).order(ByteOrder.nativeOrder()).asIntBuffer();
delays.put(0, 500);
delays.put(1, 500);
delays.put(2, 500);*/
delays.put(2, 500);
int color_scale = 255/Mouse.getMaxCursorSize();
int bit_mask = 0x81000000;
for (int j = 0; j < image_size; j++) {
@ -125,16 +125,22 @@ public class HWCursorTest {
int color = (j*color_scale/Mouse.getMaxCursorSize()) << 16;
cursor_images.put(0*image_size + j, 0x00000020 | color | bit_mask);
}
/* for (int j = 0; j < image_size; j++) {
for (int j = 0; j < image_size; j++) {
if (j % 4 == 0)
bit_mask = (~bit_mask) & 0x81000000;
int color = (j*color_scale/Mouse.getMaxCursorSize()) << 8;
cursor_images.put(1*image_size + j, 0x80000000 | color);
cursor_images.put(1*image_size + j, 0x00000020 | color | bit_mask);
}
for (int j = 0; j < image_size; j++) {
int color = j*color_scale/Mouse.getMaxCursorSize();
cursor_images.put(2*image_size + j, 0x80000000 | color);
}*/
if (j % 4 == 0)
bit_mask = (~bit_mask) & 0x81000000;
int color = (j*color_scale/Mouse.getMaxCursorSize());
cursor_images.put(2*image_size + j, 0x00000020 | color | bit_mask);
}
try {
cursor = new Cursor(Mouse.getMaxCursorSize(), Mouse.getMaxCursorSize(), Mouse.getMaxCursorSize()/2, Mouse.getMaxCursorSize()/2/*, num_images*/, Sys.getDirectBufferAddress(cursor_images)/*, Sys.getDirectBufferAddress(delays)*/);
if ((Mouse.getNativeCursorCaps() | Mouse.CURSOR_ANIMATION) == 0)
num_images = 1;
cursor = new Cursor(Mouse.getMaxCursorSize(), Mouse.getMaxCursorSize(), Mouse.getMaxCursorSize()/2, Mouse.getMaxCursorSize()/2, num_images, Sys.getDirectBufferAddress(cursor_images), Sys.getDirectBufferAddress(delays));
Mouse.setNativeCursor(cursor);
} catch (Exception e) {
e.printStackTrace();

427
src/java/org/lwjgl/test/opengl/PbufferTest.java Normal file
View file

@ -0,0 +1,427 @@
/*
* Copyright (c) 2003 Lightweight Java Game Library Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of 'Lightweight Java Game Library' nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.lwjgl.test.opengl;
import org.lwjgl.*;
import org.lwjgl.input.*;
import org.lwjgl.opengl.*;
import org.lwjgl.vector.Vector2f;
import java.nio.*;
/**
* $Id$
*
* Tests Pbuffers
*
* @author elias_naur <elias_naur@users.sourceforge.net>
* @version $Revision$
*/
public class PbufferTest {
/** Intended deiplay mode */
private DisplayMode mode;
/** GL instance */
private GL gl;
/** GLU instance */
private GLU glu;
/** our quad moving around */
private Vector2f quadPosition;
/** our quadVelocity */
private Vector2f quadVelocity;
/** angle of quad */
private float angle;
/** degrees to rotate per frame */
private float angleRotation = 1.0f;
/** Max speed of all changable attributes */
private static final float MAX_SPEED = 20.0f;
/** Pbuffer instance */
private static Pbuffer pbuffer;
/** The shared texture */
private static int tex_handle;
/**
* Executes the test
*/
public void execute() {
initialize();
mainLoop();
cleanup();
}
/**
* Initializes the test
*/
private void initialize() {
try {
//find displaymode
mode = findDisplayMode(800, 600, 16);
// start of in windowed mode
gl = new GL("Test", 50, 50, mode.width, mode.height, mode.bpp, 0, 0, 0);
// gl = new GL("Test", 50, 50, mode.width, mode.height, mode.bpp, 0, 0, 0);
gl.create();
glu = new GLU(gl);
if ((Pbuffer.getPbufferCaps() & Pbuffer.PBUFFER_SUPPORTED) == 0) {
System.out.println("No Pbuffer support!");
System.exit(1);
}
System.out.println("Pbuffer support detected");
glInit();
initPbuffer();
Keyboard.create();
quadPosition = new Vector2f(100f, 100f);
quadVelocity = new Vector2f(1.0f, 1.0f);
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* Runs the main loop of the "test"
*/
private void mainLoop() {
while (!Keyboard.isKeyDown(Keyboard.KEY_ESCAPE)
&& !gl.isCloseRequested()) {
// allow subsystem to get a chance to run too
gl.tick();
if (!gl.isMinimized()) {
// check keyboard input
processKeyboard();
// do "game" logic, and render it
logic();
render();
// paint window
gl.paint();
} else {
// no need to render/paint if nothing has changed (ie. window dragged over)
if (gl.isDirty()) {
render();
gl.paint();
}
// don't waste cpu time, sleep more
try {
Thread.sleep(100);
} catch (InterruptedException inte) {
}
}
}
}
/**
* Performs the logic
*/
private void logic() {
angle += angleRotation;
if (angle > 90.0f) {
angle = 0.0f;
}
quadPosition.x += quadVelocity.x;
quadPosition.y += quadVelocity.y;
//check colision with vertical border border
if (quadPosition.x + 50 >= mode.width || quadPosition.x - 50 <= 0) {
quadVelocity.x *= -1;
}
//check collision with horizontal border
if (quadPosition.y + 50 >= mode.height || quadPosition.y - 50 <= 0) {
quadVelocity.y *= -1;
}
}
private void render() {
if (pbuffer.isBufferLost()) {
System.out.println("Buffer contents lost - will recreate the buffer");
Pbuffer.releaseContext();
pbuffer.destroy();
initPbuffer();
}
pbuffer.makeCurrent();
// Pbuffer rendering
//clear background
gl.clear(GL.COLOR_BUFFER_BIT);
// draw white quad
gl.pushMatrix();
{
gl.translatef(quadPosition.x, quadPosition.y, 0);
gl.rotated(angle, 0.0f, 0.0f, 1.0f);
gl.color3f(1.0f, 1.0f, 1.0f);
gl.begin(GL.QUADS);
{
gl.vertex2i(-50, -50);
gl.vertex2i(50, -50);
gl.vertex2i(50, 50);
gl.vertex2i(-50, 50);
}
gl.end();
}
gl.popMatrix();
gl.copyTexImage2D(GL.TEXTURE_2D, 0, GL.RGB, 0, 0, 256, 256, 0);
Pbuffer.releaseContext();
// OpenGL window rendering
gl.clear(GL.COLOR_BUFFER_BIT);
// draw white quad
gl.pushMatrix();
{
gl.translatef(quadPosition.x, quadPosition.y, 0);
gl.rotated(angle, 0.0f, 0.0f, 1.0f);
gl.color3f(1.0f, 1.0f, 0.0f);
gl.begin(GL.QUADS);
{
gl.texCoord2f(0f, 0f);
gl.vertex2i(-50, -50);
gl.texCoord2f(1f, 0f);
gl.vertex2i(50, -50);
gl.texCoord2f(1f, 1f);
gl.vertex2i(50, 50);
gl.texCoord2f(0f, 1f);
gl.vertex2i(-50, 50);
}
gl.end();
}
gl.popMatrix();
}
private void initPbuffer() {
try {
pbuffer = new Pbuffer(256, 256, mode.bpp, 0, 0, 0);
pbuffer.makeCurrent();
initGLState(256, 256, 0.5f);
gl.bindTexture(GL.TEXTURE_2D, tex_handle);
Pbuffer.releaseContext();
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* Processes keyboard input
*/
private void processKeyboard() {
Keyboard.poll();
//check for fullscreen key
if (Keyboard.isKeyDown(Keyboard.KEY_F)) {
try {
destroyTexture();
Keyboard.destroy();
Pbuffer.releaseContext();
pbuffer.destroy();
gl.destroy();
Display.setDisplayMode(mode);
gl = new GL("Test", mode.bpp, 0, 0, 0);
gl.create();
glInit();
initPbuffer();
glu = new GLU(gl);
Keyboard.create();
} catch (Exception e) {
e.printStackTrace();
}
}
//check for window key
if (Keyboard.isKeyDown(Keyboard.KEY_W)) {
try {
destroyTexture();
Keyboard.destroy();
Pbuffer.releaseContext();
pbuffer.destroy();
gl.destroy();
Display.resetDisplayMode();
gl = new GL("Test", 50, 50, mode.width, mode.height, mode.bpp, 0, 0, 0);
gl.create();
glInit();
initPbuffer();
glu = new GLU(gl);
Keyboard.create();
} catch (Exception e) {
e.printStackTrace();
}
}
//check for speed changes
if (Keyboard.isKeyDown(Keyboard.KEY_UP)) {
quadVelocity.y += 0.1f;
}
if (Keyboard.isKeyDown(Keyboard.KEY_DOWN)) {
quadVelocity.y -= 0.1f;
}
if (Keyboard.isKeyDown(Keyboard.KEY_RIGHT)) {
quadVelocity.x += 0.1f;
}
if (Keyboard.isKeyDown(Keyboard.KEY_LEFT)) {
quadVelocity.x -= 0.1f;
}
if (Keyboard.isKeyDown(Keyboard.KEY_ADD)) {
angleRotation += 0.1f;
}
if (Keyboard.isKeyDown(Keyboard.KEY_SUBTRACT)) {
angleRotation -= 0.1f;
}
//throttle
if (quadVelocity.x < -MAX_SPEED) {
quadVelocity.x = -MAX_SPEED;
}
if (quadVelocity.x > MAX_SPEED) {
quadVelocity.x = MAX_SPEED;
}
if (quadVelocity.y < -MAX_SPEED) {
quadVelocity.y = -MAX_SPEED;
}
if (quadVelocity.y > MAX_SPEED) {
quadVelocity.y = MAX_SPEED;
}
if (angleRotation < 0.0f) {
angleRotation = 0.0f;
}
if (angleRotation > MAX_SPEED) {
angleRotation = MAX_SPEED;
}
}
private void destroyTexture() {
IntBuffer buffer = ByteBuffer.allocateDirect(4).order(ByteOrder.nativeOrder()).asIntBuffer();
buffer.put(0, tex_handle);
gl.deleteTextures(1, Sys.getDirectBufferAddress(buffer));
}
/**
* Cleans up the test
*/
private void cleanup() {
destroyTexture();
Keyboard.destroy();
Pbuffer.releaseContext();
pbuffer.destroy();
gl.destroy();
}
/**
* Retrieves a displaymode, if one such is available
*
* @param width Required width
* @param height Required height
* @param bpp Minimum required bits per pixel
* @return
*/
private DisplayMode findDisplayMode(int width, int height, int bpp) {
DisplayMode[] modes = Display.getAvailableDisplayModes();
for (int i = 0; i < modes.length; i++) {
if (modes[i].width == width
&& modes[i].height == height
&& modes[i].bpp >= bpp) {
return modes[i];
}
}
return null;
}
private void initGLState(int width, int height, float color) {
gl.matrixMode(GL.PROJECTION);
gl.loadIdentity();
glu.ortho2D(0, mode.width, 0, mode.height);
gl.matrixMode(GL.MODELVIEW);
gl.loadIdentity();
gl.viewport(0, 0, width, height);
//set clear color to black
gl.clearColor(color, color, color, 0.0f);
}
/**
* Initializes OGL
*/
private void glInit() {
// Go into orthographic projection mode.
gl.determineAvailableExtensions();
//sync frame (only works on windows)
if (GL.WGL_EXT_swap_control) {
GL.wglSwapIntervalEXT(1);
}
gl.texEnvf(GL.TEXTURE_ENV, GL.TEXTURE_ENV_MODE, GL.REPLACE);
gl.enable(GL.TEXTURE_2D);
// Create shared texture
IntBuffer buffer = ByteBuffer.allocateDirect(4).order(ByteOrder.nativeOrder()).asIntBuffer();
gl.genTextures(1, Sys.getDirectBufferAddress(buffer));
tex_handle = buffer.get(0);
gl.bindTexture(GL.TEXTURE_2D, tex_handle);
gl.texParameteri(GL.TEXTURE_2D, GL.TEXTURE_WRAP_S, GL.CLAMP);
gl.texParameteri(GL.TEXTURE_2D, GL.TEXTURE_WRAP_T, GL.CLAMP);
gl.texParameteri(GL.TEXTURE_2D, GL.TEXTURE_MIN_FILTER, GL.LINEAR);
gl.texParameteri(GL.TEXTURE_2D, GL.TEXTURE_MAG_FILTER, GL.LINEAR);
initGLState(mode.width, mode.height, 0f);
}
/**
* Test entry point
*/
public static void main(String[] args) {
System.out.println(
"Change between fullscreen and windowed mode, by pressing F and W respectively");
System.out.println("Move quad using arrowkeys, and change rotation using +/-");
PbufferTest fswTest = new PbufferTest();
fswTest.execute();
}
}