1 /* 2 * Copyright (C) 2010 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 #ifndef ANDROID_HWUI_PATCH_H 18 #define ANDROID_HWUI_PATCH_H 19 20 #include <sys/types.h> 21 22 #include <GLES2/gl2.h> 23 24 #include <utils/Vector.h> 25 26 #include <androidfw/ResourceTypes.h> 27 28 #include "Rect.h" 29 #include "UvMapper.h" 30 #include "Vertex.h" 31 32 namespace android { 33 namespace uirenderer { 34 35 /////////////////////////////////////////////////////////////////////////////// 36 // 9-patch structures 37 /////////////////////////////////////////////////////////////////////////////// 38 39 struct Patch { 40 Patch(); 41 ~Patch(); 42 43 /** 44 * Returns the size of this patch's mesh in bytes. 45 */ 46 uint32_t getSize() const; 47 48 TextureVertex* vertices; 49 uint32_t verticesCount; 50 uint32_t indexCount; 51 bool hasEmptyQuads; 52 Vector<Rect> quads; 53 54 GLintptr offset; 55 GLintptr textureOffset; 56 57 TextureVertex* createMesh(const float bitmapWidth, const float bitmapHeight, 58 float width, float height, const Res_png_9patch* patch); 59 TextureVertex* createMesh(const float bitmapWidth, const float bitmapHeight, 60 float width, float height, const UvMapper& mapper, const Res_png_9patch* patch); 61 62 private: 63 void generateRow(const int32_t* xDivs, uint32_t xCount, TextureVertex*& vertex, 64 float y1, float y2, float v1, float v2, float stretchX, float rescaleX, 65 float width, float bitmapWidth, uint32_t& quadCount); 66 void generateQuad(TextureVertex*& vertex, float x1, float y1, float x2, float y2, 67 float u1, float v1, float u2, float v2, uint32_t& quadCount); 68 69 uint32_t* mColors; 70 UvMapper mUvMapper; 71 }; // struct Patch 72 73 }; // namespace uirenderer 74 }; // namespace android 75 76 #endif // ANDROID_HWUI_PATCH_H 77
