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/*
* Copyright 1999-2008 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*
*/
package javax.media.j3d;
/**
* The RenderMethod interface is used to create various ways to render
* different geometries.
*/
class DisplayListRenderMethod implements RenderMethod {
/**
* display list buffer size
*/
final int bufferSize = 128;
/**
* display list buffer
*/
int[] buffer = new int[bufferSize];
/**
* The actual rendering code for this RenderMethod
*/
@Override
public boolean render(RenderMolecule rm, Canvas3D cv,
RenderAtomListInfo ra,
int dirtyBits) {
if (rm.doInfinite ||
!VirtualUniverse.mc.viewFrustumCulling ||
rm.vwcBounds.intersect(cv.viewFrustum)) {
cv.updateState(dirtyBits);
cv.callDisplayList(cv.ctx, rm.displayListId,
rm.isNonUniformScale);
return true;
}
return false;
}
public boolean renderSeparateDlists(RenderMolecule rm,
Canvas3D cv,
RenderAtomListInfo r, int dirtyBits) {
if (rm.doInfinite) {
cv.updateState(dirtyBits);
while (r != null) {
cv.callDisplayList(cv.ctx,
((GeometryArrayRetained)r.geometry()).dlistId,
rm.isNonUniformScale);
r = r.next;
}
return true;
}
boolean isVisible = false; // True if any of the RAs is visible.
while (r != null) {
if (cv.ra == r.renderAtom) {
if (cv.raIsVisible) {
cv.updateState(dirtyBits);
cv.callDisplayList(cv.ctx,
((GeometryArrayRetained)r.geometry()).dlistId,
rm.isNonUniformScale);
isVisible = true;
}
}
else {
if (r.renderAtom.localeVwcBounds.intersect(cv.viewFrustum)) {
cv.updateState(dirtyBits);
cv.raIsVisible = true;
cv.callDisplayList(cv.ctx,
((GeometryArrayRetained)r.geometry()).dlistId,
rm.isNonUniformScale);
isVisible = true;
}
else {
cv.raIsVisible = false;
}
cv.ra = r.renderAtom;
}
r = r.next;
}
return isVisible;
}
public boolean renderSeparateDlistPerRinfo(RenderMolecule rm,
Canvas3D cv,
RenderAtomListInfo r,
int dirtyBits) {
if (rm.doInfinite) {
cv.updateState(dirtyBits);
while (r != null) {
cv.callDisplayList(cv.ctx,r.renderAtom.dlistIds[r.index],
rm.isNonUniformScale);
r = r.next;
}
return true;
}
boolean isVisible = false; // True if any of the RAs is visible.
while (r != null) {
if (cv.ra == r.renderAtom) {
if (cv.raIsVisible) {
cv.updateState(dirtyBits);
cv.callDisplayList(cv.ctx, r.renderAtom.dlistIds[r.index],
rm.isNonUniformScale);
isVisible = true;
}
}
else {
if (r.renderAtom.localeVwcBounds.intersect(cv.viewFrustum)) {
cv.updateState(dirtyBits);
cv.raIsVisible = true;
cv.callDisplayList(cv.ctx, r.renderAtom.dlistIds[r.index],
rm.isNonUniformScale);
isVisible = true;
}
else {
cv.raIsVisible = false;
}
cv.ra = r.renderAtom;
}
r = r.next;
}
return isVisible;
}
void buildDisplayList(RenderMolecule rm, Canvas3D cv) {
RenderAtomListInfo ra;
boolean useAlpha;
GeometryArrayRetained geo;
useAlpha = rm.useAlpha;
Transform3D staticTransform;
Transform3D staticNormalTransform;
if ((rm.primaryRenderAtomList != null) &&
(rm.texCoordSetMapLen <= cv.maxTexCoordSets)) {
cv.newDisplayList(cv.ctx, rm.displayListId);
ra = rm.primaryRenderAtomList;
while (ra != null) {
geo = (GeometryArrayRetained)ra.geometry();
if (ra.renderAtom.geometryAtom.source.staticTransform == null) {
staticTransform = null;
staticNormalTransform = null;
} else {
staticTransform =
ra.renderAtom.geometryAtom.source.staticTransform.transform;
if ((geo.vertexFormat & GeometryArray.NORMALS) != 0) {
staticNormalTransform =
ra.renderAtom.geometryAtom.source.staticTransform.getNormalTransform();
} else {
staticNormalTransform = null;
}
}
geo.buildGA(cv, ra.renderAtom, false,
(useAlpha &&
((geo.vertexFormat & GeometryArray.COLOR) != 0)),
rm.alpha,
rm.textureBin.attributeBin.ignoreVertexColors,
staticTransform,
staticNormalTransform);
ra = ra.next;
}
cv.endDisplayList(cv.ctx);
}
}
void buildIndividualDisplayList(RenderAtomListInfo ra, Canvas3D cv,
Context ctx) {
GeometryArrayRetained geo;
geo = (GeometryArrayRetained)ra.geometry();
if ((geo.texCoordSetMap != null) &&
(geo.texCoordSetMap.length > cv.maxTexCoordSets)) {
return;
}
// Note, the dlistId does not change when renderer is building
cv.newDisplayList(ctx, geo.dlistId);
// No need to lock when it is indexed geometry since we have
// our own copy
// Note individual dlist is only created if alpha is not modifiable
// so, we don't need any renderMolecule specific information
geo.buildGA(cv, ra.renderAtom, false,
false,
1.0f,
false,
null, null);
cv.endDisplayList(ctx);
}
void buildDlistPerRinfo(RenderAtomListInfo ra, RenderMolecule rm, Canvas3D cv) {
boolean useAlpha;
GeometryArrayRetained geo;
useAlpha = rm.useAlpha;
Transform3D staticTransform;
Transform3D staticNormalTransform;
int id;
geo = (GeometryArrayRetained)ra.geometry();
if ((rm.primaryRenderAtomList != null) &&
(rm.texCoordSetMapLen <= cv.maxTexCoordSets)) {
id = ra.renderAtom.dlistIds[ra.index];
cv.newDisplayList(cv.ctx, id);
geo = (GeometryArrayRetained)ra.geometry();
if (ra.renderAtom.geometryAtom.source.staticTransform == null) {
staticTransform = null;
staticNormalTransform = null;
} else {
staticTransform =
ra.renderAtom.geometryAtom.source.staticTransform.transform;
if ((geo.vertexFormat & GeometryArray.NORMALS) != 0) {
staticNormalTransform =
ra.renderAtom.geometryAtom.source.staticTransform.getNormalTransform();
} else {
staticNormalTransform = null;
}
}
geo.buildGA(cv, ra.renderAtom, false,
(useAlpha &&
((geo.vertexFormat & GeometryArray.COLOR) != 0)),
rm.alpha,
rm.textureBin.attributeBin.ignoreVertexColors,
staticTransform,
staticNormalTransform);
cv.endDisplayList(cv.ctx);
}
}
}