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ContextAttribs: changed factory to constructor initialization

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Fixed compatible spelling
Small pbuffer fix
This commit is contained in:
Ioannis Tsakpinis 2008-08-19 17:47:24 +00:00
parent d7ee23f9b2
commit 6ea785334e
10 changed files with 138 additions and 127 deletions
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115
src/java/org/lwjgl/opengl/ContextAttribs.java
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@ -45,16 +45,16 @@ import java.nio.IntBuffer;
* Use of this class is optional. If an OpenGL context is created without passing an instance of this class
* (or XGL_create_context is not supported), the old context creation code will be used. Use of ContextAttribs is required
* to create an OpenGL 3.0 or newer context. Support for debug and forward compatible mobes is not guaranteed by the OpenGL
* implementation. Developers may encounter debug contexts being the same as non-debug contexts or forward combatible
* implementation. Developers may encounter debug contexts being the same as non-debug contexts or forward compatible
* contexts having support for deprecated functionality.
* <p/>
* Warning: This functionality is currently available on the Windows platform only. However, if the forwardCombatible
* Warning: This functionality is currently available on the Windows platform only. However, if the forwardCompatible
* attribute is used, LWJGL will not load the deprecated functionality (as defined in the OpenGL 3.0 specification). This
* means that developers can start working on cleaning up their applications without an OpenGL 3.0 complaint driver.
*
* @author spasi <spasi@users.sourceforge.net>
*/
public abstract class ContextAttribs {
public final class ContextAttribs {
private int majorVersion;
private int minorVersion;
@ -62,9 +62,13 @@ public abstract class ContextAttribs {
private int layerPlane;
private boolean debug;
private boolean forwardCombatible;
private boolean forwardCompatible;
protected ContextAttribs(final int majorVersion, final int minorVersion) {
public ContextAttribs() {
this(1, 0);
}
public ContextAttribs(final int majorVersion, final int minorVersion) {
if ( majorVersion < 0 ||
3 < majorVersion ||
minorVersion < 0 ||
@ -79,103 +83,76 @@ public abstract class ContextAttribs {
this.layerPlane = 0;
this.debug = false;
this.forwardCombatible = false;
this.forwardCompatible = false;
}
protected ContextAttribs(final ContextAttribs attribs) {
private ContextAttribs(final ContextAttribs attribs) {
this.majorVersion = attribs.majorVersion;
this.minorVersion = attribs.minorVersion;
this.layerPlane = attribs.layerPlane;
this.debug = attribs.debug;
this.forwardCombatible = attribs.forwardCombatible;
this.forwardCompatible = attribs.forwardCompatible;
}
public static ContextAttribs create() {
return create(1, 0);
}
public static ContextAttribs create(final int majorVersion, final int minorVersion) {
switch ( LWJGLUtil.getPlatform() ) {
case LWJGLUtil.PLATFORM_LINUX:
return new LinuxContextAttribs(majorVersion, minorVersion);
case LWJGLUtil.PLATFORM_WINDOWS:
return new WindowsContextAttribs(majorVersion, minorVersion);
case LWJGLUtil.PLATFORM_MACOSX:
return new MacOSXContextAttribs(majorVersion, minorVersion);
default:
throw new IllegalStateException("Unsupported platform");
}
}
private static ContextAttribs create(final ContextAttribs attribs) {
switch ( LWJGLUtil.getPlatform() ) {
case LWJGLUtil.PLATFORM_LINUX:
return new LinuxContextAttribs(attribs);
case LWJGLUtil.PLATFORM_WINDOWS:
return new WindowsContextAttribs(attribs);
case LWJGLUtil.PLATFORM_MACOSX:
return new MacOSXContextAttribs(attribs);
default:
throw new IllegalStateException("Unsupported platform");
}
}
public final int getMajorVersion() {
public int getMajorVersion() {
return majorVersion;
}
public final int getMinorVersion() {
public int getMinorVersion() {
return minorVersion;
}
public final int getLayerPlane() {
public int getLayerPlane() {
return layerPlane;
}
public final boolean isDebug() {
public boolean isDebug() {
return debug;
}
public final boolean isForwardCombatible() {
return forwardCombatible;
public boolean isForwardCompatible() {
return forwardCompatible;
}
public final ContextAttribs withLayer(final int layerPlane) {
public ContextAttribs withLayer(final int layerPlane) {
if ( layerPlane < 0 )
throw new IllegalArgumentException("Invalid layer plane specified: " + layerPlane);
final ContextAttribs attribs = create(this);
final ContextAttribs attribs = new ContextAttribs(this);
attribs.layerPlane = layerPlane;
return attribs;
}
public final ContextAttribs withDebug(final boolean debug) {
final ContextAttribs attribs = create(this);
public ContextAttribs withDebug(final boolean debug) {
final ContextAttribs attribs = new ContextAttribs(this);
attribs.debug = debug;
return attribs;
}
public final ContextAttribs withForwardCombatible(final boolean forwardCombatible) {
final ContextAttribs attribs = create(this);
attribs.forwardCombatible = forwardCombatible;
public ContextAttribs withForwardCompatible(final boolean forwardCompatible) {
final ContextAttribs attribs = new ContextAttribs(this);
attribs.forwardCompatible = forwardCompatible;
return attribs;
}
protected abstract int getMajorVersionAttrib();
private static ContextAttribsImplementation getImplementation() {
switch ( LWJGLUtil.getPlatform() ) {
case LWJGLUtil.PLATFORM_LINUX:
return new LinuxContextAttribs();
case LWJGLUtil.PLATFORM_WINDOWS:
return new WindowsContextAttribs();
case LWJGLUtil.PLATFORM_MACOSX:
return new MacOSXContextAttribs();
default:
throw new IllegalStateException("Unsupported platform");
}
}
protected abstract int getMinorVersionAttrib();
IntBuffer getAttribList() {
ContextAttribsImplementation implementation = getImplementation();
protected abstract int getLayerPlaneAttrib();
protected abstract int getFlagsAttrib();
protected abstract int getDebugBit();
protected abstract int getForwardCombatibleBit();
final IntBuffer getAttribList() {
int attribCount = 0;
if ( !(majorVersion == 1 && minorVersion == 0) )
@ -185,9 +162,9 @@ public abstract class ContextAttribs {
int flags = 0;
if ( debug )
flags |= getDebugBit();
if ( forwardCombatible )
flags |= getForwardCombatibleBit();
flags |= implementation.getDebugBit();
if ( forwardCompatible )
flags |= implementation.getForwardCompatibleBit();
if ( 0 < flags )
attribCount++;
@ -197,13 +174,13 @@ public abstract class ContextAttribs {
final IntBuffer attribs = BufferUtils.createIntBuffer((attribCount * 2) + 1);
if ( !(majorVersion == 1 && minorVersion == 0) ) {
attribs.put(getMajorVersionAttrib()).put(majorVersion);
attribs.put(getMinorVersionAttrib()).put(minorVersion);
attribs.put(implementation.getMajorVersionAttrib()).put(majorVersion);
attribs.put(implementation.getMinorVersionAttrib()).put(minorVersion);
}
if ( 0 < layerPlane )
attribs.put(getLayerPlaneAttrib()).put(layerPlane);
attribs.put(implementation.getLayerPlaneAttrib()).put(layerPlane);
if ( 0 < flags )
attribs.put(getFlagsAttrib()).put(flags);
attribs.put(implementation.getFlagsAttrib()).put(flags);
attribs.put(0);
attribs.rewind();