2 * Copyright 2013 The Android Open Source Project
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
18 #ifndef SF_RENDERENGINE_H_
19 #define SF_RENDERENGINE_H_
22 #include <sys/types.h>
25 #include <EGL/eglext.h>
27 // ---------------------------------------------------------------------------
29 // ---------------------------------------------------------------------------
39 GLES_VERSION_1_0 = 0x10000,
40 GLES_VERSION_1_1 = 0x10001,
41 GLES_VERSION_2_0 = 0x20000,
42 GLES_VERSION_3_0 = 0x30000,
44 static GlesVersion parseGlesVersion(const char* str);
46 EGLContext mEGLContext;
47 void setEGLContext(EGLContext ctxt);
49 virtual void bindImageAsFramebuffer(EGLImageKHR image, uint32_t* texName, uint32_t* fbName, uint32_t* status) = 0;
50 virtual void unbindFramebuffer(uint32_t texName, uint32_t fbName) = 0;
54 virtual ~RenderEngine() = 0;
57 static RenderEngine* create(EGLDisplay display, EGLConfig config);
59 // dump the extension strings. always call the base class.
60 virtual void dump(String8& result);
63 void clearWithColor(float red, float green, float blue, float alpha);
64 void fillRegionWithColor(const Region& region, uint32_t height,
65 float red, float green, float blue, float alpha);
67 // common to all GL versions
68 void setScissor(uint32_t left, uint32_t bottom, uint32_t right, uint32_t top);
69 void disableScissor();
70 void genTextures(size_t count, uint32_t* names);
71 void deleteTextures(size_t count, uint32_t const* names);
73 class BindImageAsFramebuffer {
74 RenderEngine& mEngine;
75 uint32_t mTexName, mFbName;
78 BindImageAsFramebuffer(RenderEngine& engine, EGLImageKHR image);
79 ~BindImageAsFramebuffer();
80 int getStatus() const;
84 virtual void checkErrors() const;
85 virtual void setViewportAndProjection(size_t vpw, size_t vph, size_t w, size_t h, bool yswap) = 0;
86 virtual void setupLayerBlending(bool premultipliedAlpha, bool opaque, int alpha) = 0;
87 virtual void setupDimLayerBlending(int alpha) = 0;
88 virtual void setupLayerTexturing(const Texture& texture) = 0;
89 virtual void setupLayerBlackedOut() = 0;
91 virtual void disableTexturing() = 0;
92 virtual void disableBlending() = 0;
95 virtual void fillWithColor(const Mesh& mesh, float r, float g, float b, float a) = 0;
96 virtual void drawMesh(const Mesh& mesh) = 0;
99 virtual size_t getMaxTextureSize() const = 0;
100 virtual size_t getMaxViewportDims() const = 0;
104 EGLContext getEGLContext() const;
107 // ---------------------------------------------------------------------------
108 }; // namespace android
109 // ---------------------------------------------------------------------------
111 #endif /* SF_RENDERENGINE_H_ */