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 // --------------------------------------------------------------------------- 31 namespace android { 32 // --------------------------------------------------------------------------- 33 34 class String8; 35 class Mesh; 36 class Texture; 37 38 class GLES20RenderEngine : public RenderEngine { 39 GLuint mProtectedTexName; 40 GLint mMaxViewportDims[2]; 41 GLint mMaxTextureSize; 42 GLuint mVpWidth; 43 GLuint mVpHeight; 44 45 struct Group { 46 GLuint texture; 47 GLuint fbo; 48 GLuint width; 49 GLuint height; 50 mat4 colorTransform; 51 }; 52 53 Description mState; 54 Vector<Group> mGroupStack; 55 56 virtual void bindImageAsFramebuffer(EGLImageKHR image, 57 uint32_t* texName, uint32_t* fbName, uint32_t* status); 58 virtual void unbindFramebuffer(uint32_t texName, uint32_t fbName); 59 60 public: 61 GLES20RenderEngine(); 62 63 protected: 64 virtual ~GLES20RenderEngine(); 65 66 virtual void dump(String8& result); 67 virtual void setViewportAndProjection(size_t vpw, size_t vph, size_t w, size_t h, bool yswap); 68 virtual void setupLayerBlending(bool premultipliedAlpha, bool opaque, int alpha); 69 virtual void setupDimLayerBlending(int alpha); 70 virtual void setupLayerTexturing(const Texture& texture); 71 virtual void setupLayerBlackedOut(); 72 virtual void setupFillWithColor(float r, float g, float b, float a); 73 virtual void disableTexturing(); 74 virtual void disableBlending(); 75 76 virtual void drawMesh(const Mesh& mesh); 77 78 virtual void beginGroup(const mat4& colorTransform); 79 virtual void endGroup(); 80 81 virtual size_t getMaxTextureSize() const; 82 virtual size_t getMaxViewportDims() const; 83 }; 84 85 // --------------------------------------------------------------------------- 86 }; // namespace android 87 // --------------------------------------------------------------------------- 88 89 #endif /* SF_GLES20RENDERENGINE_H_ */ 90