/**
* <code>setupTexture</code> initializes a new Texture object for use with TextureRenderer.
* Generates a valid gl texture id for this texture and inits the data type for the texture.
*/
public void setupTexture(final Texture tex) {
if (tex.getType() != Type.TwoDimensional) {
throw new IllegalArgumentException("Unsupported type: " + tex.getType());
}
final RenderContext context = ContextManager.getCurrentContext();
final TextureStateRecord record =
(TextureStateRecord) context.getStateRecord(RenderState.StateType.Texture);
// check if we are already setup... if so, throw error.
if (tex.getTextureKey() == null) {
tex.setTextureKey(TextureKey.getRTTKey(tex.getMinificationFilter()));
} else if (tex.getTextureIdForContext(context.getGlContextRep()) != 0) {
throw new Ardor3dException("Texture is already setup and has id.");
}
// Create the texture
final IntBuffer ibuf = BufferUtils.createIntBuffer(1);
GL11.glGenTextures(ibuf);
final int textureId = ibuf.get(0);
tex.setTextureIdForContext(context.getGlContextRep(), textureId);
LwjglTextureStateUtil.doTextureBind(tex, 0, true);
// Initialize our texture with some default data.
final int internalFormat = LwjglTextureUtil.getGLInternalFormat(tex.getTextureStoreFormat());
final int dataFormat =
LwjglTextureUtil.getGLPixelFormatFromStoreFormat(tex.getTextureStoreFormat());
final int pixelDataType =
LwjglTextureUtil.getGLPixelDataType(tex.getRenderedTexturePixelDataType());
GL11.glTexImage2D(
GL11.GL_TEXTURE_2D,
0,
internalFormat,
_width,
_height,
0,
dataFormat,
pixelDataType,
(ByteBuffer) null);
// Setup filtering and wrap
final TextureRecord texRecord = record.getTextureRecord(textureId, tex.getType());
LwjglTextureStateUtil.applyFilter(tex, texRecord, 0, record, context.getCapabilities());
LwjglTextureStateUtil.applyWrap(tex, texRecord, 0, record, context.getCapabilities());
logger.fine("setup pbuffer tex" + textureId + ": " + _width + "," + _height);
}
private void render(
final List<? extends Spatial> toDrawA,
final Spatial toDrawB,
final Scene toDrawC,
final List<Texture> texs,
final int clear) {
try {
if (_pbuffer == null || _pbuffer.isBufferLost()) {
if (_pbuffer != null && _pbuffer.isBufferLost()) {
logger.warning("PBuffer contents lost - will recreate the buffer");
deactivate();
_pbuffer.destroy();
}
initPbuffer();
}
if (texs.size() == 1
&& _useDirectRender
&& !texs.get(0).getTextureStoreFormat().isDepthFormat()) {
// setup and render directly to a 2d texture.
LwjglTextureStateUtil.doTextureBind(texs.get(0), 0, true);
activate();
switchCameraIn(clear);
_pbuffer.releaseTexImage(Pbuffer.FRONT_LEFT_BUFFER);
if (toDrawA != null) {
doDraw(toDrawA);
} else {
doDraw(toDrawB);
}
switchCameraOut();
deactivate();
_pbuffer.bindTexImage(Pbuffer.FRONT_LEFT_BUFFER);
} else {
// render and copy to a texture
activate();
switchCameraIn(clear);
if (toDrawA != null) {
doDraw(toDrawA);
} else {
doDraw(toDrawB);
}
switchCameraOut();
for (int i = 0; i < texs.size(); i++) {
copyToTexture(texs.get(i), 0, 0, _width, _height, 0, 0);
}
deactivate();
}
} catch (final Exception e) {
logger.logp(
Level.SEVERE, this.getClass().toString(), "render(Spatial, Texture)", "Exception", e);
}
}
public void copyToTexture(
final Texture tex,
final int x,
final int y,
final int width,
final int height,
final int xoffset,
final int yoffset) {
LwjglTextureStateUtil.doTextureBind(tex, 0, true);
GL11.glCopyTexSubImage2D(GL11.GL_TEXTURE_2D, 0, xoffset, yoffset, x, y, width, height);
}
