GLES20RenderEngine.h revision c3ebe66b49cfba035e1fd0e160a13db38eb81b0e 
1/*
2 * Copyright 2013 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
17
18#ifndef SF_GLES20RENDERENGINE_H_
19#define SF_GLES20RENDERENGINE_H_
20
21#include <stdint.h>
22#include <sys/types.h>
23
24#include <GLES2/gl2.h>
25#include <Transform.h>
26
27#include "RenderEngine.h"
28#include "ProgramCache.h"
29#include "Description.h"
30
31// ---------------------------------------------------------------------------
32namespace android {
33// ---------------------------------------------------------------------------
34
35class String8;
36class Mesh;
37class Texture;
38
39class GLES20RenderEngine : public RenderEngine {
40    GLuint mProtectedTexName;
41    GLint mMaxViewportDims[2];
42    GLint mMaxTextureSize;
43    GLuint mVpWidth;
44    GLuint mVpHeight;
45
46    struct Group {
47        GLuint texture;
48        GLuint fbo;
49        GLuint width;
50        GLuint height;
51        mat4 colorTransform;
52    };
53
54    Description mState;
55    Vector<Group> mGroupStack;
56
57    virtual void bindImageAsFramebuffer(EGLImageKHR image,
58            uint32_t* texName, uint32_t* fbName, uint32_t* status);
59    virtual void unbindFramebuffer(uint32_t texName, uint32_t fbName);
60
61public:
62    GLES20RenderEngine();
63
64protected:
65    virtual ~GLES20RenderEngine();
66
67    virtual void dump(String8& result);
68    virtual void setViewportAndProjection(size_t vpw, size_t vph,
69            Rect sourceCrop, size_t hwh, bool yswap, Transform::orientation_flags rotation);
70    virtual void setupLayerBlending(bool premultipliedAlpha, bool opaque, int alpha);
71    virtual void setupDimLayerBlending(int alpha);
72    virtual void setupLayerTexturing(const Texture& texture);
73    virtual void setupLayerBlackedOut();
74    virtual void setupFillWithColor(float r, float g, float b, float a);
75    virtual void disableTexturing();
76    virtual void disableBlending();
77
78    virtual void drawMesh(const Mesh& mesh);
79
80    virtual void beginGroup(const mat4& colorTransform);
81    virtual void endGroup();
82
83    virtual size_t getMaxTextureSize() const;
84    virtual size_t getMaxViewportDims() const;
85};
86
87// ---------------------------------------------------------------------------
88}; // namespace android
89// ---------------------------------------------------------------------------
90
91#endif /* SF_GLES20RENDERENGINE_H_ */
92