109 lines
3.4 KiB
Java
109 lines
3.4 KiB
Java
/*
|
|
* 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.graphics.Matrix;
|
|
import android.util.Config;
|
|
import android.util.Log;
|
|
|
|
|
|
/**
|
|
* ProgramVertex, also know as a vertex shader, describes a
|
|
* stage in the graphics pipeline responsible for manipulating
|
|
* geometric data in a user-defined way.
|
|
*
|
|
**/
|
|
public class ProgramVertex extends Program {
|
|
|
|
ProgramVertex(int id, RenderScript rs) {
|
|
super(id, rs);
|
|
}
|
|
|
|
/**
|
|
* Builder class for creating ProgramVertex objects.
|
|
* The builder starts empty and the user must minimally provide
|
|
* the GLSL shader code, and the varying inputs. Constant, or
|
|
* uniform parameters to the shader may optionally be provided as
|
|
* well.
|
|
*
|
|
**/
|
|
public static class Builder extends BaseProgramBuilder {
|
|
/**
|
|
* Create a builder object.
|
|
*
|
|
* @param rs Context to which the program will belong.
|
|
*/
|
|
public Builder(RenderScript rs) {
|
|
super(rs);
|
|
}
|
|
|
|
/**
|
|
* Add varying inputs to the program
|
|
*
|
|
* @param e element describing the layout of the varying input
|
|
* structure
|
|
* @return self
|
|
*/
|
|
public Builder addInput(Element e) throws IllegalStateException {
|
|
// Should check for consistant and non-conflicting names...
|
|
if(mInputCount >= MAX_INPUT) {
|
|
throw new RSIllegalArgumentException("Max input count exceeded.");
|
|
}
|
|
if (e.isComplex()) {
|
|
throw new RSIllegalArgumentException("Complex elements not allowed.");
|
|
}
|
|
mInputs[mInputCount++] = e;
|
|
return this;
|
|
}
|
|
|
|
/**
|
|
* Creates ProgramVertex from the current state of the builder
|
|
*
|
|
* @return ProgramVertex
|
|
*/
|
|
public ProgramVertex create() {
|
|
mRS.validate();
|
|
int[] tmp = new int[(mInputCount + mOutputCount + mConstantCount + mTextureCount) * 2];
|
|
int idx = 0;
|
|
|
|
for (int i=0; i < mInputCount; i++) {
|
|
tmp[idx++] = ProgramParam.INPUT.mID;
|
|
tmp[idx++] = mInputs[i].getID();
|
|
}
|
|
for (int i=0; i < mOutputCount; i++) {
|
|
tmp[idx++] = ProgramParam.OUTPUT.mID;
|
|
tmp[idx++] = mOutputs[i].getID();
|
|
}
|
|
for (int i=0; i < mConstantCount; i++) {
|
|
tmp[idx++] = ProgramParam.CONSTANT.mID;
|
|
tmp[idx++] = mConstants[i].getID();
|
|
}
|
|
for (int i=0; i < mTextureCount; i++) {
|
|
tmp[idx++] = ProgramParam.TEXTURE_TYPE.mID;
|
|
tmp[idx++] = mTextureTypes[i].mID;
|
|
}
|
|
|
|
int id = mRS.nProgramVertexCreate(mShader, tmp);
|
|
ProgramVertex pv = new ProgramVertex(id, mRS);
|
|
initProgram(pv);
|
|
return pv;
|
|
}
|
|
}
|
|
|
|
}
|