protected void beginRendering(DrawContext dc, OGLStackHandler stackHandler) {
if (dc == null) {
String message = Logging.getMessage("nullValue.DrawContextIsNull");
Logging.logger().fine(message);
throw new IllegalArgumentException(message);
}
GL2 gl = dc.getGL();
int attribMask =
GL2.GL_COLOR_BUFFER_BIT // for alpha test func and ref, blend func
| GL2.GL_CURRENT_BIT // for current color
| GL2.GL_ENABLE_BIT // for enable/disable
| GL2.GL_LINE_BIT // for line width
| GL2.GL_TRANSFORM_BIT; // for matrix mode
stackHandler.pushAttrib(gl, attribMask);
stackHandler.pushTextureIdentity(gl);
stackHandler.pushProjectionIdentity(gl);
java.awt.Rectangle viewport = dc.getView().getViewport();
gl.glOrtho(
viewport.x, viewport.x + viewport.width, viewport.y, viewport.y + viewport.height, -1, 1);
stackHandler.pushModelviewIdentity(gl);
// Enable the alpha test.
gl.glEnable(GL2.GL_ALPHA_TEST);
gl.glAlphaFunc(GL2.GL_GREATER, 0.0f);
// Enable blending in premultiplied color mode.
gl.glEnable(GL2.GL_BLEND);
OGLUtil.applyBlending(gl, true);
gl.glDisable(GL2.GL_CULL_FACE);
gl.glDisable(GL2.GL_DEPTH_TEST);
gl.glDisable(GL2.GL_LIGHTING);
gl.glDisable(GL2.GL_TEXTURE_2D);
}
@Override
public void draw(IDelegateView view, DrawContext dc, DrawableSceneController sc) {
GL2 gl = dc.getGL().getGL2();
init(gl);
if (distortionShader.isCreationFailed()) {
view.draw(dc, sc);
return;
}
Rectangle oldViewport = view.getViewport();
hmd.beginFrameTiming(++frameCount);
{
Posef[] eyePoses = hmd.getEyePoses(frameCount, eyeOffsets);
// RiftLogger.logPose(eyePoses);
renderEyes = true;
frameBuffer.bind(gl);
{
sc.clearFrame(dc);
for (int i = 0; i < ovrEye_Count; i++) {
int eye = hmd.EyeRenderOrder[i];
Posef pose = eyePoses[eye];
this.eyePoses[eye].Orientation = pose.Orientation;
this.eyePoses[eye].Position = pose.Position;
this.eye = eye;
gl.glViewport(
eyeRenderViewport[eye].Pos.x,
eyeRenderViewport[eye].Pos.y,
eyeRenderViewport[eye].Size.w,
eyeRenderViewport[eye].Size.h);
sc.applyView(dc);
sc.draw(dc);
}
}
frameBuffer.unbind(gl);
renderEyes = false;
OGLStackHandler oglsh = new OGLStackHandler();
oglsh.pushAttrib(gl, GL2.GL_ENABLE_BIT);
oglsh.pushClientAttrib(gl, GL2.GL_CLIENT_VERTEX_ARRAY_BIT);
try {
gl.glViewport(0, 0, hmd.Resolution.w, hmd.Resolution.h);
gl.glDisable(GL2.GL_DEPTH_TEST);
gl.glEnable(GL2.GL_TEXTURE_2D);
gl.glActiveTexture(GL2.GL_TEXTURE0);
gl.glBindTexture(GL2.GL_TEXTURE_2D, frameBuffer.getTexture().getId());
for (int eyeNum = 0; eyeNum < ovrEye_Count; eyeNum++) {
OvrMatrix4f[] timeWarpMatricesRowMajor = new OvrMatrix4f[2];
hmd.getEyeTimewarpMatrices(eyeNum, eyePoses[eyeNum], timeWarpMatricesRowMajor);
distortionShader.use(
gl,
uvScaleOffset[eyeNum][0].x,
-uvScaleOffset[eyeNum][0].y,
uvScaleOffset[eyeNum][1].x,
1 - uvScaleOffset[eyeNum][1].y,
timeWarpMatricesRowMajor[0].M,
timeWarpMatricesRowMajor[1].M);
gl.glClientActiveTexture(GL2.GL_TEXTURE0);
gl.glEnableClientState(GL2.GL_VERTEX_ARRAY);
gl.glEnableClientState(GL2.GL_TEXTURE_COORD_ARRAY);
gl.glEnableClientState(GL2.GL_COLOR_ARRAY);
gl.glBindBuffer(
GL2.GL_ARRAY_BUFFER, distortionObjects[eyeNum][DistortionObjects.vbo.ordinal()]);
{
int stride = 10 * 4;
gl.glVertexPointer(4, GL2.GL_FLOAT, stride, 0);
gl.glTexCoordPointer(2, GL2.GL_FLOAT, stride, 4 * 4);
gl.glColorPointer(4, GL2.GL_FLOAT, stride, 6 * 4);
gl.glBindBuffer(
GL2.GL_ELEMENT_ARRAY_BUFFER,
distortionObjects[eyeNum][DistortionObjects.ibo.ordinal()]);
{
gl.glDrawElements(GL2.GL_TRIANGLES, indicesCount, GL2.GL_UNSIGNED_INT, 0);
}
gl.glBindBuffer(GL2.GL_ELEMENT_ARRAY_BUFFER, 0);
}
gl.glBindBuffer(GL2.GL_ARRAY_BUFFER, 0);
distortionShader.unuse(gl);
}
} finally {
oglsh.pop(gl);
}
}
hmd.endFrameTiming();
// apply the old viewport, and ensure that the view is updated for the next picking round
gl.glViewport(oldViewport.x, oldViewport.y, oldViewport.width, oldViewport.height);
sc.applyView(dc);
view.firePropertyChange(
AVKey.VIEW, null, view); // make the view draw repeatedly for oculus rotation
}
protected void doRenderGeometry(DrawContext dc, String drawStyle) {
if (dc == null) {
String message = Logging.getMessage("nullValue.DrawContextIsNull");
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
if (dc.getGL() == null) {
String message = Logging.getMessage("nullValue.DrawingContextGLIsNull");
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
double[] angles = this.computeAngles();
// Angles are equal, fallback to drawing a closed cylinder.
if (angles == null) {
super.doRenderGeometry(dc, drawStyle);
return;
}
double[] altitudes = this.getAltitudes(dc.getVerticalExaggeration());
boolean[] terrainConformant = this.isTerrainConforming();
double[] radii = this.getRadii();
int slices = this.getSlices();
int stacks = this.getStacks();
int loops = this.getLoops();
if (this.isEnableLevelOfDetail()) {
DetailLevel level = this.computeDetailLevel(dc);
Object o = level.getValue(SLICES);
if (o != null && o instanceof Integer) slices = (Integer) o;
o = level.getValue(STACKS);
if (o != null && o instanceof Integer) stacks = (Integer) o;
o = level.getValue(LOOPS);
if (o != null && o instanceof Integer) loops = (Integer) o;
o = level.getValue(DISABLE_TERRAIN_CONFORMANCE);
if (o != null && o instanceof Boolean && ((Boolean) o))
terrainConformant[0] = terrainConformant[1] = false;
}
Vec4 referenceCenter = this.computeReferenceCenter(dc);
this.setExpiryTime(this.nextExpiryTime(dc, terrainConformant));
this.clearElevationMap();
GL gl = dc.getGL();
OGLStackHandler ogsh = new OGLStackHandler();
try {
dc.getView().pushReferenceCenter(dc, referenceCenter);
if (Airspace.DRAW_STYLE_OUTLINE.equals(drawStyle)) {
this.drawRadialWallOutline(
dc,
radii,
angles[0],
altitudes,
terrainConformant,
loops,
stacks,
GeometryBuilder.INSIDE,
referenceCenter);
this.drawRadialWallOutline(
dc,
radii,
angles[1],
altitudes,
terrainConformant,
loops,
stacks,
GeometryBuilder.OUTSIDE,
referenceCenter);
// Outer cylinder isn't rendered if outer radius is zero.
if (radii[1] != 0.0) {
this.drawPartialCylinderOutline(
dc,
radii[1],
altitudes,
terrainConformant,
slices,
stacks,
GeometryBuilder.OUTSIDE,
angles[0],
angles[2],
referenceCenter);
}
// Inner cylinder isn't rendered if inner radius is zero.
if (radii[0] != 0.0) {
this.drawPartialCylinderOutline(
dc,
radii[0],
altitudes,
terrainConformant,
slices,
stacks,
GeometryBuilder.INSIDE,
angles[0],
angles[2],
referenceCenter);
}
} else if (Airspace.DRAW_STYLE_FILL.equals(drawStyle)) {
if (this.isEnableCaps()) {
ogsh.pushAttrib(gl, GL.GL_POLYGON_BIT);
gl.glEnable(GL.GL_CULL_FACE);
gl.glFrontFace(GL.GL_CCW);
}
if (this.isEnableCaps()) {
// Caps aren't rendered if radii are equal.
if (radii[0] != radii[1]) {
this.drawPartialDisk(
dc,
radii,
altitudes[1],
terrainConformant[1],
slices,
loops,
GeometryBuilder.OUTSIDE,
angles[0],
angles[2],
referenceCenter);
// Bottom cap isn't rendered if airspace is collapsed.
if (!this.isAirspaceCollapsed()) {
this.drawPartialDisk(
dc,
radii,
altitudes[0],
terrainConformant[0],
slices,
loops,
GeometryBuilder.INSIDE,
angles[0],
angles[2],
referenceCenter);
}
}
}
// Cylinders aren't rendered if airspace is collapsed.
if (!this.isAirspaceCollapsed()) {
this.drawRadialWall(
dc,
radii,
angles[0],
altitudes,
terrainConformant,
loops,
stacks,
GeometryBuilder.INSIDE,
referenceCenter);
this.drawRadialWall(
dc,
radii,
angles[1],
altitudes,
terrainConformant,
loops,
stacks,
GeometryBuilder.OUTSIDE,
referenceCenter);
// Outer cylinder isn't rendered if outer radius is zero.
if (radii[1] != 0.0) {
this.drawPartialCylinder(
dc,
radii[1],
altitudes,
terrainConformant,
slices,
stacks,
GeometryBuilder.OUTSIDE,
angles[0],
angles[2],
referenceCenter);
}
// Inner cylinder isn't rendered if inner radius is zero.
if (radii[0] != 0.0) {
this.drawPartialCylinder(
dc,
radii[0],
altitudes,
terrainConformant,
slices,
stacks,
GeometryBuilder.INSIDE,
angles[0],
angles[2],
referenceCenter);
}
}
}
} finally {
dc.getView().popReferenceCenter(dc);
ogsh.pop(gl);
}
}
protected void doRenderGeometry(
DrawContext dc, String drawStyle, List<LatLon> locations, List<Boolean> edgeFlags) {
if (dc == null) {
String message = Logging.getMessage("nullValue.DrawContextIsNull");
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
if (dc.getGL() == null) {
String message = Logging.getMessage("nullValue.DrawingContextGLIsNull");
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
if (locations == null) {
String message = "nullValue.LocationsIsNull";
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
if (locations.size() == 0) return;
double[] altitudes = this.getAltitudes(dc.getVerticalExaggeration());
boolean[] terrainConformant = this.isTerrainConforming();
boolean enableCaps = this.isEnableCaps();
int subdivisions = this.subdivisions;
if (this.getAltitudeDatum()[0].equals(AVKey.ABOVE_GROUND_REFERENCE)
|| this.getAltitudeDatum()[1].equals(AVKey.ABOVE_GROUND_REFERENCE)) {
this.adjustForGroundReference(dc, terrainConformant, altitudes);
}
if (this.isEnableLevelOfDetail()) {
DetailLevel level = this.computeDetailLevel(dc);
Object o = level.getValue(SUBDIVISIONS);
if (o != null && o instanceof Integer) subdivisions = (Integer) o;
o = level.getValue(DISABLE_TERRAIN_CONFORMANCE);
if (o != null && o instanceof Boolean && (Boolean) o)
terrainConformant[0] = terrainConformant[1] = false;
}
Vec4 referenceCenter = this.computeReferenceCenter(dc);
this.setExpiryTime(this.nextExpiryTime(dc, terrainConformant));
this.clearElevationMap();
GL gl = dc.getGL();
OGLStackHandler ogsh = new OGLStackHandler();
try {
dc.getView().pushReferenceCenter(dc, referenceCenter);
if (Airspace.DRAW_STYLE_FILL.equals(drawStyle)) {
if (enableCaps && !this.isAirspaceCollapsed()) {
ogsh.pushAttrib(gl, GL.GL_POLYGON_BIT);
gl.glEnable(GL.GL_CULL_FACE);
gl.glFrontFace(GL.GL_CCW);
}
this.drawPolygonFill(
dc,
locations,
edgeFlags,
altitudes,
terrainConformant,
enableCaps,
subdivisions,
referenceCenter);
} else if (Airspace.DRAW_STYLE_OUTLINE.equals(drawStyle)) {
this.drawPolygonOutline(
dc,
locations,
edgeFlags,
altitudes,
terrainConformant,
enableCaps,
subdivisions,
referenceCenter);
}
} finally {
dc.getView().popReferenceCenter(dc);
ogsh.pop(gl);
}
}