2 * Copyright (c) 2021 Samsung Electronics Co., Ltd.
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.
19 #include <dali/internal/render/shaders/program.h>
26 #include <dali/devel-api/common/hash.h>
27 #include <dali/graphics-api/graphics-controller.h>
28 #include <dali/graphics-api/graphics-program.h>
29 #include <dali/graphics-api/graphics-reflection.h>
30 #include <dali/integration-api/debug.h>
31 #include <dali/integration-api/gl-defines.h>
32 #include <dali/internal/common/shader-data.h>
33 #include <dali/internal/render/common/performance-monitor.h>
34 #include <dali/internal/render/shaders/program-cache.h>
35 #include <dali/public-api/common/constants.h>
36 #include <dali/public-api/common/dali-common.h>
37 #include <dali/public-api/common/dali-vector.h>
46 const unsigned int NUMBER_OF_DEFAULT_UNIFORMS = static_cast<unsigned int>(Program::DefaultUniformIndex::COUNT);
49 * List of all default uniforms used for quicker lookup
51 size_t DEFAULT_UNIFORM_HASHTABLE[NUMBER_OF_DEFAULT_UNIFORMS] =
53 CalculateHash(std::string("uModelMatrix")),
54 CalculateHash(std::string("uMvpMatrix")),
55 CalculateHash(std::string("uViewMatrix")),
56 CalculateHash(std::string("uModelView")),
57 CalculateHash(std::string("uNormalMatrix")),
58 CalculateHash(std::string("uProjection")),
59 CalculateHash(std::string("uSize")),
60 CalculateHash(std::string("uColor"))};
66 Program* Program::New(ProgramCache& cache, Internal::ShaderDataPtr shaderData, Graphics::Controller& gfxController, Graphics::UniquePtr<Graphics::Program>&& gfxProgram)
68 uint32_t programId{0u};
70 // Get program id and use it as hash for the cache
71 // in order to maintain current functionality as long as needed
72 gfxController.GetProgramParameter(*gfxProgram, 1, &programId);
74 size_t shaderHash = programId;
76 Program* program = cache.GetProgram(shaderHash);
78 if(nullptr == program)
80 // program not found so create it
81 program = new Program(cache, shaderData, gfxController, std::move(gfxProgram));
82 cache.AddProgram(shaderHash, program);
88 Program::Program(ProgramCache& cache, Internal::ShaderDataPtr shaderData, Graphics::Controller& controller, Graphics::UniquePtr<Graphics::Program>&& gfxProgram)
90 mProjectionMatrix(nullptr),
92 mGfxProgram(std::move(gfxProgram)),
93 mGfxController(controller),
94 mProgramData(shaderData)
96 BuildReflection(controller.GetProgramReflection(*mGfxProgram.get()));
99 Program::~Program() = default;
101 void Program::BuildReflection(const Graphics::Reflection& graphicsReflection)
103 mReflectionDefaultUniforms.clear();
104 mReflectionDefaultUniforms.resize(NUMBER_OF_DEFAULT_UNIFORMS);
106 auto uniformBlockCount = graphicsReflection.GetUniformBlockCount();
108 // add uniform block fields
109 for(auto i = 0u; i < uniformBlockCount; ++i)
111 Graphics::UniformBlockInfo uboInfo;
112 graphicsReflection.GetUniformBlock(i, uboInfo);
114 // for each member store data
115 for(const auto& item : uboInfo.members)
117 auto hashValue = CalculateHash(item.name);
118 mReflection.emplace_back(ReflectionUniformInfo{hashValue, false, item});
120 // update buffer index
121 mReflection.back().uniformInfo.bufferIndex = i;
123 // Update default uniforms
124 for(auto j = 0u; j < NUMBER_OF_DEFAULT_UNIFORMS; ++j)
126 if(hashValue == DEFAULT_UNIFORM_HASHTABLE[j])
128 mReflectionDefaultUniforms[j] = mReflection.back();
136 auto samplers = graphicsReflection.GetSamplers();
137 for(const auto& sampler : samplers)
139 mReflection.emplace_back(ReflectionUniformInfo{CalculateHash(sampler.name), false, sampler});
142 // check for potential collisions
143 std::map<size_t, bool> hashTest;
144 bool hasCollisions(false);
145 for(auto&& item : mReflection)
147 if(hashTest.find(item.hashValue) == hashTest.end())
149 hashTest[item.hashValue] = false;
153 hashTest[item.hashValue] = true;
154 hasCollisions = true;
158 // update collision flag for further use
161 for(auto&& item : mReflection)
163 item.hasCollision = hashTest[item.hashValue];
168 bool Program::GetUniform(const std::string& name, size_t hashedName, Graphics::UniformInfo& out) const
170 if(mReflection.empty())
175 hashedName = !hashedName ? CalculateHash(name, '[') : hashedName;
177 for(const ReflectionUniformInfo& item : mReflection)
179 if(item.hashValue == hashedName)
181 if(!item.hasCollision || item.uniformInfo.name == name)
183 out = item.uniformInfo;
195 const Graphics::UniformInfo* Program::GetDefaultUniform(DefaultUniformIndex defaultUniformIndex) const
197 if(mReflectionDefaultUniforms.empty())
202 const auto value = &mReflectionDefaultUniforms[static_cast<uint32_t>(defaultUniformIndex)];
203 return &value->uniformInfo;
206 } // namespace Internal