1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Whole-tree processing that's likely to be helpful in multiple render models. 6 7 #ifndef GPU_TOOLS_COMPOSITOR_MODEL_BENCH_RENDER_MODEL_UTILS_H_ 8 #define GPU_TOOLS_COMPOSITOR_MODEL_BENCH_RENDER_MODEL_UTILS_H_ 9 10 #include <stdint.h> 11 12 #include <map> 13 #include <memory> 14 #include <set> 15 #include <vector> 16 17 #include "base/compiler_specific.h" 18 #include "gpu/tools/compositor_model_bench/render_tree.h" 19 20 // This is a visitor that runs over the tree structure that was built from the 21 // configuration file. It creates OpenGL textures (random checkerboards) that 22 // match the specifications of the original textures and overwrites the old 23 // texture ID's in the tree, replacing them with the matching new textures. 24 class TextureGenerator : public RenderNodeVisitor { 25 public: 26 typedef std::unique_ptr<uint8_t[]> ImagePtr; 27 typedef std::vector<Tile>::iterator tile_iter; 28 29 explicit TextureGenerator(RenderNode* root); 30 ~TextureGenerator() override; 31 32 // RenderNodeVisitor functions look for textures and pass them 33 // off to HandleTexture (which behaves appropriately depending 34 // on which pass we are in.) 35 void BeginVisitRenderNode(RenderNode* node) override; 36 void BeginVisitCCNode(CCNode* node) override; 37 38 private: 39 enum TextureGenStage { 40 DiscoveryStage, 41 RemappingStage, 42 ImageGenerationStage 43 }; 44 45 void DiscoverInputIDs(RenderNode* root); 46 void GenerateGLTexIDs(); 47 void AssignIDMapping(); 48 void WriteOutNewIDs(RenderNode* root); 49 void AllocateImageArray(); 50 void BuildTextureImages(RenderNode* root); 51 void HandleTexture(int* texID, int width, int height, GLenum format); 52 void GenerateImageForTexture(int texID, int width, int height, GLenum format); 53 54 TextureGenStage stage_; 55 std::set<int> discovered_ids_; 56 std::unique_ptr<GLuint[]> tex_ids_; 57 std::map<int, int> remapped_ids_; 58 std::unique_ptr<ImagePtr[]> image_data_; 59 int images_generated_; 60 std::set<int> ids_for_completed_textures_; 61 }; 62 63 #endif // GPU_TOOLS_COMPOSITOR_MODEL_BENCH_RENDER_MODEL_UTILS_H_ 64 65