GlopBuilder.h revision 117bdbcfa3e8306dad21e7e01fa71b00cdfa7265 
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#ifndef RENDERSTATE_GLOPBUILDER_H
17#define RENDERSTATE_GLOPBUILDER_H
18
19#include "OpenGLRenderer.h"
20#include "Program.h"
21#include "utils/Macros.h"
22
23class SkPaint;
24
25namespace android {
26namespace uirenderer {
27
28class Caches;
29struct Glop;
30class Matrix4;
31class RenderState;
32class Texture;
33class VertexBuffer;
34
35class GlopBuilder {
36    PREVENT_COPY_AND_ASSIGN(GlopBuilder);
37public:
38    GlopBuilder(RenderState& renderState, Caches& caches, Glop* outGlop);
39    GlopBuilder& setMeshUnitQuad();
40    GlopBuilder& setMeshVertexBuffer(const VertexBuffer& vertexBuffer, bool shadowInterp);
41
42    GlopBuilder& setTransform(const Matrix4& ortho, const Matrix4& transform, bool fudgingOffset);
43
44    GlopBuilder& setModelViewMapUnitToRect(const Rect destination);
45    GlopBuilder& setModelViewOffsetRect(float offsetX, float offsetY, const Rect source);
46
47    GlopBuilder& setPaint(const SkPaint* paint, float alphaScale);
48    void build();
49private:
50    enum StageFlags {
51        kInitialStage = 0,
52        kMeshStage = 1 << 0,
53        kTransformStage = 1 << 1,
54        kModelViewStage = 1 << 2,
55        kFillStage = 1 << 3,
56        kAllStages = kMeshStage | kTransformStage | kModelViewStage | kFillStage,
57    } mStageFlags;
58
59    ProgramDescription mDescription;
60    RenderState& mRenderState;
61    Caches& mCaches;
62    Glop* mOutGlop;
63};
64
65} /* namespace uirenderer */
66} /* namespace android */
67
68#endif // RENDERSTATE_GLOPBUILDER_H
69