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/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.renderscript;
import android.util.Config;
import android.util.Log;
/**
* Program raster is primarily used to specify whether point sprites are enabled and to control
* the culling mode. By default, back faces are culled.
**/
public class ProgramRaster extends BaseObj {
public enum CullMode {
BACK (0),
FRONT (1),
NONE (2);
int mID;
CullMode(int id) {
mID = id;
}
}
boolean mPointSmooth;
boolean mLineSmooth;
boolean mPointSprite;
float mLineWidth;
CullMode mCullMode;
ProgramRaster(int id, RenderScript rs) {
super(id, rs);
mLineWidth = 1.0f;
mPointSmooth = false;
mLineSmooth = false;
mPointSprite = false;
mCullMode = CullMode.BACK;
}
public static ProgramRaster CULL_BACK(RenderScript rs) {
if(rs.mProgramRaster_CULL_BACK == null) {
ProgramRaster.Builder builder = new ProgramRaster.Builder(rs);
builder.setCullMode(CullMode.BACK);
rs.mProgramRaster_CULL_BACK = builder.create();
}
return rs.mProgramRaster_CULL_BACK;
}
public static ProgramRaster CULL_FRONT(RenderScript rs) {
if(rs.mProgramRaster_CULL_FRONT == null) {
ProgramRaster.Builder builder = new ProgramRaster.Builder(rs);
builder.setCullMode(CullMode.FRONT);
rs.mProgramRaster_CULL_FRONT = builder.create();
}
return rs.mProgramRaster_CULL_FRONT;
}
public static ProgramRaster CULL_NONE(RenderScript rs) {
if(rs.mProgramRaster_CULL_NONE == null) {
ProgramRaster.Builder builder = new ProgramRaster.Builder(rs);
builder.setCullMode(CullMode.NONE);
rs.mProgramRaster_CULL_NONE = builder.create();
}
return rs.mProgramRaster_CULL_NONE;
}
public static class Builder {
RenderScript mRS;
boolean mPointSprite;
boolean mPointSmooth;
boolean mLineSmooth;
CullMode mCullMode;
public Builder(RenderScript rs) {
mRS = rs;
mPointSmooth = false;
mLineSmooth = false;
mPointSprite = false;
mCullMode = CullMode.BACK;
}
public Builder setPointSpriteEnabled(boolean enable) {
mPointSprite = enable;
return this;
}
public Builder setCullMode(CullMode m) {
mCullMode = m;
return this;
}
public ProgramRaster create() {
mRS.validate();
int id = mRS.nProgramRasterCreate(mPointSmooth, mLineSmooth, mPointSprite,
1.f, mCullMode.mID);
return new ProgramRaster(id, mRS);
}
}
}
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