1/*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.example.android.rs.vr.engine;
18
19import android.util.Log;
20
21/**
22 * Base implementation of a rendering pipeline Simply renders a box
23 */
24public class BasicPipeline implements Pipeline {
25    boolean mCancel = false;
26    private static final String LOGTAG = "BasicPipeline";
27    ScriptC_rasterize scriptC_rasterize;
28
29    @Override
30    public void cancel() {
31        mCancel = true;
32    }
33
34    @Override
35    public boolean isCancel() {
36        return mCancel;
37    }
38
39    @Override
40    public void initBuffers(VrState state) {
41        mCancel = false;
42    }
43
44    @Override
45    public void setupTriangles(VrState state) {
46        Matrix m = state.mTransform.getMatrix(Transform.VOLUME_SPACE, Transform.SCREEN_SPACE);
47        state.mCubeVolume.transform(m, state.mCubeScreen);
48    }
49
50    @Override
51    public void rasterizeTriangles(VrState state) {
52        if (scriptC_rasterize == null) {
53            scriptC_rasterize = new ScriptC_rasterize(state.mRs);
54        }
55        scriptC_rasterize.set_index(state.mCubeScreen.mIndex);
56        scriptC_rasterize.set_vert(state.mCubeScreen.mVert);
57        long start = System.nanoTime();
58        scriptC_rasterize.invoke_setup_triangles(state.mImgWidth, state.mImgHeight);
59        if (mCancel) return;
60        scriptC_rasterize.forEach_render_z(state.mzRangeFullAllocation);
61        state.mRs.finish();
62        Log.v(LOGTAG,"render triangles "+((System.nanoTime()-start)/1E6f)+" ms");
63    }
64
65    @Override
66    public void raycast(VrState state) {
67        scriptC_rasterize.set_z_range_buff(state.mzRangeFullAllocation);
68        scriptC_rasterize.forEach_draw_z_buffer(state.mzRangeFullAllocation, state.mScrAllocation);
69    }
70}
71