GLES20RenderEngine.h revision 458197de008be8fe561286b09f4edddb2f5c540a 
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
26#include "RenderEngine.h"
27#include "ProgramCache.h"
28#include "Description.h"
29
30// ---------------------------------------------------------------------------
31namespace android {
32// ---------------------------------------------------------------------------
33
34class String8;
35class Mesh;
36
37class GLES20RenderEngine : public RenderEngine {
38    GLuint mProtectedTexName;
39    GLint mMaxViewportDims[2];
40    GLint mMaxTextureSize;
41
42    Description mState;
43
44    virtual void bindImageAsFramebuffer(EGLImageKHR image,
45            uint32_t* texName, uint32_t* fbName, uint32_t* status);
46    virtual void unbindFramebuffer(uint32_t texName, uint32_t fbName);
47
48public:
49    GLES20RenderEngine();
50
51protected:
52    virtual ~GLES20RenderEngine();
53
54    virtual void dump(String8& result);
55    virtual void setViewportAndProjection(size_t vpw, size_t vph, size_t w, size_t h, bool yswap);
56    virtual void setupLayerBlending(bool premultipliedAlpha, bool opaque, int alpha);
57    virtual void setupDimLayerBlending(int alpha);
58    virtual void setupLayerTexturing(size_t textureName, bool useFiltering, const float* textureMatrix);
59    virtual void setupLayerBlackedOut();
60    virtual void disableTexturing();
61    virtual void disableBlending();
62
63    virtual void fillWithColor(const Mesh& mesh, float r, float g, float b, float a);
64    virtual void drawMesh(const Mesh& mesh);
65
66    virtual size_t getMaxTextureSize() const;
67    virtual size_t getMaxViewportDims() const;
68};
69
70// ---------------------------------------------------------------------------
71}; // namespace android
72// ---------------------------------------------------------------------------
73
74#endif /* SF_GLES20RENDERENGINE_H_ */
75