GlopBuilder.h revision 0519c810a56bded1284fcb2ae40f438878c6585f 
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
40    GlopBuilder& setMeshUnitQuad();
41    GlopBuilder& setMeshTexturedUnitQuad(const UvMapper* uvMapper, bool isAlphaMaskTexture);
42    GlopBuilder& setMeshVertexBuffer(const VertexBuffer& vertexBuffer, bool shadowInterp);
43    GlopBuilder& setMeshIndexedQuads(void* vertexData, int quadCount);
44
45    GlopBuilder& setFillPaint(const SkPaint& paint, float alphaScale);
46    GlopBuilder& setFillTexturePaint(Texture& texture, bool isAlphaMaskTexture,
47            const SkPaint* paint, float alphaScale);
48
49    GlopBuilder& setTransformClip(const Matrix4& ortho, const Matrix4& transform, bool fudgingOffset);
50
51    GlopBuilder& setModelViewMapUnitToRect(const Rect destination);
52    GlopBuilder& setModelViewMapUnitToRectSnap(const Rect destination);
53    GlopBuilder& setModelViewOffsetRect(float offsetX, float offsetY, const Rect source);
54
55    GlopBuilder& setRoundRectClipState(const RoundRectClipState* roundRectClipState);
56
57    void build();
58private:
59    void setFill(int color, float alphaScale, SkXfermode::Mode mode,
60            const SkShader* shader, const SkColorFilter* colorFilter);
61
62    enum StageFlags {
63        kInitialStage = 0,
64        kMeshStage = 1 << 0,
65        kTransformStage = 1 << 1,
66        kModelViewStage = 1 << 2,
67        kFillStage = 1 << 3,
68        kRoundRectClipStage = 1 << 4,
69        kAllStages = kMeshStage | kFillStage | kTransformStage | kModelViewStage | kRoundRectClipStage,
70    } mStageFlags;
71
72    ProgramDescription mDescription;
73    RenderState& mRenderState;
74    Caches& mCaches;
75    Glop* mOutGlop;
76};
77
78} /* namespace uirenderer */
79} /* namespace android */
80
81#endif // RENDERSTATE_GLOPBUILDER_H
82