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 <androidfw/ResourceTypes.h> 25 26 #include "Rect.h" 27 #include "UvMapper.h" 28 29 #include <vector> 30 31 namespace android { 32 namespace uirenderer { 33 34 struct TextureVertex; 35 36 /////////////////////////////////////////////////////////////////////////////// 37 // 9-patch structures 38 /////////////////////////////////////////////////////////////////////////////// 39 40 class Patch { 41 public: 42 Patch(const float bitmapWidth, const float bitmapHeight, 43 float width, float height, 44 const UvMapper& mapper, const Res_png_9patch* patch); 45 46 /** 47 * Returns the size of this patch's mesh in bytes. 48 */ 49 uint32_t getSize() const; 50 51 std::unique_ptr<TextureVertex[]> vertices; 52 uint32_t verticesCount = 0; 53 uint32_t indexCount = 0; 54 bool hasEmptyQuads = false; 55 std::vector<Rect> quads; 56 57 GLintptr positionOffset = 0; 58 GLintptr textureOffset = 0; 59 60 private: 61 void generateRow(const int32_t* xDivs, uint32_t xCount, TextureVertex*& vertex, 62 float y1, float y2, float v1, float v2, float stretchX, float rescaleX, 63 float width, float bitmapWidth, uint32_t& quadCount); 64 void generateQuad(TextureVertex*& vertex, float x1, float y1, float x2, float y2, 65 float u1, float v1, float u2, float v2, uint32_t& quadCount); 66 67 const uint32_t* mColors; 68 UvMapper mUvMapper; 69 }; // struct Patch 70 71 }; // namespace uirenderer 72 }; // namespace android 73 74 #endif // ANDROID_HWUI_PATCH_H 75
