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/internal/common/shader-data.h>
32 #include <dali/internal/render/common/performance-monitor.h>
33 #include <dali/internal/render/shaders/program-cache.h>
34 #include <dali/public-api/common/constants.h>
35 #include <dali/public-api/common/dali-common.h>
36 #include <dali/public-api/common/dali-vector.h>
45 const unsigned int NUMBER_OF_DEFAULT_UNIFORMS = static_cast<unsigned int>(Program::DefaultUniformIndex::COUNT);
48 * List of all default uniforms used for quicker lookup
50 size_t DEFAULT_UNIFORM_HASHTABLE[NUMBER_OF_DEFAULT_UNIFORMS] =
52 CalculateHash(std::string("uModelMatrix")),
53 CalculateHash(std::string("uMvpMatrix")),
54 CalculateHash(std::string("uViewMatrix")),
55 CalculateHash(std::string("uModelView")),
56 CalculateHash(std::string("uNormalMatrix")),
57 CalculateHash(std::string("uProjection")),
58 CalculateHash(std::string("uSize")),
59 CalculateHash(std::string("uColor")),
60 CalculateHash(std::string("uActorColor"))};
63 * Helper function to calculate the correct alignment of data for uniform buffers
64 * @param dataSize size of uniform buffer
65 * @return aligned offset of data
67 inline uint32_t GetUniformBufferDataAlignment(uint32_t dataSize)
69 return ((dataSize / 256u) + ((dataSize % 256u) ? 1u : 0u)) * 256u;
76 Program* Program::New(ProgramCache& cache, Internal::ShaderDataPtr shaderData, Graphics::Controller& gfxController)
78 size_t shaderHash = shaderData->GetHashValue();
80 Program* program = cache.GetProgram(shaderHash);
82 if(nullptr == program)
84 // program not found so create it
85 program = new Program(cache, shaderData, gfxController);
86 cache.AddProgram(shaderHash, program);
92 Program::Program(ProgramCache& cache, Internal::ShaderDataPtr shaderData, Graphics::Controller& controller)
94 mProjectionMatrix(nullptr),
97 mGfxController(controller),
98 mProgramData(shaderData)
102 Program::~Program() = default;
104 void Program::BuildReflection(const Graphics::Reflection& graphicsReflection)
106 mReflectionDefaultUniforms.clear();
107 mReflectionDefaultUniforms.resize(NUMBER_OF_DEFAULT_UNIFORMS);
109 auto uniformBlockCount = graphicsReflection.GetUniformBlockCount();
111 // add uniform block fields
112 for(auto i = 0u; i < uniformBlockCount; ++i)
114 Graphics::UniformBlockInfo uboInfo;
115 graphicsReflection.GetUniformBlock(i, uboInfo);
117 // for each member store data
118 for(const auto& item : uboInfo.members)
120 auto hashValue = CalculateHash(item.name);
121 mReflection.emplace_back(ReflectionUniformInfo{hashValue, false, item});
123 // update buffer index
124 mReflection.back().uniformInfo.bufferIndex = i;
126 // Update default uniforms
127 for(auto j = 0u; j < NUMBER_OF_DEFAULT_UNIFORMS; ++j)
129 if(hashValue == DEFAULT_UNIFORM_HASHTABLE[j])
131 mReflectionDefaultUniforms[j] = mReflection.back();
139 auto samplers = graphicsReflection.GetSamplers();
140 for(const auto& sampler : samplers)
142 mReflection.emplace_back(ReflectionUniformInfo{CalculateHash(sampler.name), false, sampler});
145 // check for potential collisions
146 std::map<size_t, bool> hashTest;
147 bool hasCollisions(false);
148 for(auto&& item : mReflection)
150 if(hashTest.find(item.hashValue) == hashTest.end())
152 hashTest[item.hashValue] = false;
156 hashTest[item.hashValue] = true;
157 hasCollisions = true;
161 // update collision flag for further use
164 for(auto&& item : mReflection)
166 item.hasCollision = hashTest[item.hashValue];
170 // Calculate size of memory for uniform blocks
171 mUniformBlockRequirements.totalSizeRequired = 0;
172 mUniformBlockRequirements.blockCount = graphicsReflection.GetUniformBlockCount();
173 for (auto i = 0u; i < mUniformBlockRequirements.blockCount; ++i)
175 auto blockSize = GetUniformBufferDataAlignment(graphicsReflection.GetUniformBlockSize(i));
176 mUniformBlockRequirements.totalSizeRequired += blockSize;
180 void Program::SetGraphicsProgram( Graphics::UniquePtr<Graphics::Program>&& program )
182 mGfxProgram = std::move(program);
183 BuildReflection(mGfxController.GetProgramReflection(*mGfxProgram.get()));
187 bool Program::GetUniform(const std::string& name, size_t hashedName, Graphics::UniformInfo& out) const
189 if(mReflection.empty())
194 hashedName = !hashedName ? CalculateHash(name, '[') : hashedName;
196 for(const ReflectionUniformInfo& item : mReflection)
198 if(item.hashValue == hashedName)
200 if(!item.hasCollision || item.uniformInfo.name == name)
202 out = item.uniformInfo;
214 const Graphics::UniformInfo* Program::GetDefaultUniform(DefaultUniformIndex defaultUniformIndex) const
216 if(mReflectionDefaultUniforms.empty())
221 const auto value = &mReflectionDefaultUniforms[static_cast<uint32_t>(defaultUniformIndex)];
222 return &value->uniformInfo;
225 } // namespace Internal