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.
18 #include "gles-graphics-program.h"
21 #include "egl-graphics-controller.h"
22 #include "gles-graphics-reflection.h"
23 #include "gles-graphics-shader.h"
26 #include <dali/integration-api/gl-abstraction.h>
27 #include <dali/integration-api/gl-defines.h>
29 namespace Dali::Graphics::GLES
31 using Integration::GlAbstraction;
34 * Memory compare working on 4-byte types. Since all types used in shaders are
35 * size of 4*N then no need for size and alignment checks.
37 template<class A, class B>
38 inline bool memcmp4(A* a, B* b, uint32_t size)
40 auto* pa = reinterpret_cast<const uint32_t*>(a);
41 auto* pb = reinterpret_cast<const uint32_t*>(b);
43 while(size-- && *pa++ == *pb++)
49 * Structure stores pointer to the function
50 * which will set the uniform of particular type
56 void (GlAbstraction::*uniformfProc)(GLint, GLsizei, const float*);
57 void (GlAbstraction::*uniformiProc)(GLint, GLsizei, const int*);
58 void (GlAbstraction::*uniformMatrixProc)(GLint, GLsizei, GLboolean, const float*);
72 struct ProgramImpl::Impl
74 explicit Impl(EglGraphicsController& _controller, const ProgramCreateInfo& info)
75 : controller(_controller)
80 createInfo.shaderState = new std::vector<ShaderState>(*info.shaderState);
86 delete createInfo.shaderState;
89 EglGraphicsController& controller;
90 ProgramCreateInfo createInfo;
92 uint32_t refCount{0u};
94 std::unique_ptr<GLES::Reflection> reflection{nullptr};
97 std::vector<uint8_t> uniformData;
99 // List of standalone uniform setters
100 std::vector<UniformSetter> uniformSetters;
103 ProgramImpl::ProgramImpl(const Graphics::ProgramCreateInfo& createInfo, Graphics::EglGraphicsController& controller)
105 // Create implementation
106 mImpl = std::make_unique<Impl>(controller, createInfo);
109 mImpl->reflection = std::make_unique<GLES::Reflection>(*this, controller);
112 ProgramImpl::~ProgramImpl() = default;
114 bool ProgramImpl::Destroy()
118 auto gl = mImpl->controller.GetGL();
123 gl->DeleteProgram(mImpl->glProgram);
129 bool ProgramImpl::Create()
131 // Create and link new program
132 auto gl = mImpl->controller.GetGL();
135 // Do nothing during shutdown
139 auto program = gl->CreateProgram();
141 const auto& info = mImpl->createInfo;
142 for(const auto& state : *info.shaderState)
144 const auto* shader = static_cast<const GLES::Shader*>(state.shader);
146 // Compile shader first (ignored when compiled)
147 if(shader->Compile())
149 gl->AttachShader(program, shader->GetGLShader());
152 gl->LinkProgram(program);
155 gl->GetProgramiv(program, GL_LINK_STATUS, &status);
156 if(status != GL_TRUE)
160 gl->GetProgramInfoLog(program, 4096, &size, output);
163 // TODO: un-printf-it
164 printf("Log: %s\n", output);
165 gl->DeleteProgram(program);
169 mImpl->glProgram = program;
171 // Initialize reflection
172 mImpl->reflection->BuildUniformReflection();
173 mImpl->reflection->BuildVertexAttributeReflection();
175 // populate uniform cache memory for standalone uniforms (it's not needed
176 // for real UBOs as real UBOs work with whole memory blocks)
177 auto& reflection = mImpl->reflection;
178 if(!reflection->GetStandaloneUniformExtraInfo().empty())
180 UniformBlockInfo blockInfo;
181 mImpl->reflection->GetUniformBlock(0, blockInfo);
182 auto uniformCacheSize = blockInfo.size;
183 mImpl->uniformData.resize(uniformCacheSize);
185 std::fill(mImpl->uniformData.begin(), mImpl->uniformData.end(), 0);
187 BuildStandaloneUniformCache();
192 uint32_t ProgramImpl::GetGlProgram() const
194 return mImpl->glProgram;
197 uint32_t ProgramImpl::Retain()
199 return ++mImpl->refCount;
202 uint32_t ProgramImpl::Release()
204 return --mImpl->refCount;
207 const GLES::Reflection& ProgramImpl::GetReflection() const
209 return *mImpl->reflection;
212 bool ProgramImpl::GetParameter(uint32_t parameterId, void* out)
214 if(parameterId == 1) // a magic number to access program id
216 *reinterpret_cast<decltype(&mImpl->glProgram)>(out) = mImpl->glProgram;
222 EglGraphicsController& ProgramImpl::GetController() const
224 return mImpl->controller;
227 const ProgramCreateInfo& ProgramImpl::GetCreateInfo() const
229 return mImpl->createInfo;
232 void ProgramImpl::UpdateStandaloneUniformBlock(const char* ptr)
234 const auto& reflection = GetReflection();
236 const auto& extraInfos = reflection.GetStandaloneUniformExtraInfo();
238 auto& gl = *GetController().GetGL();
242 auto cachePtr = reinterpret_cast<char*>(mImpl->uniformData.data());
243 for(const auto& info : extraInfos)
245 auto& setter = mImpl->uniformSetters[index++];
246 auto offset = info.offset;
247 if(!memcmp4(&cachePtr[offset], &ptr[offset], info.size * info.arraySize))
251 case UniformSetter::Type::FLOAT:
253 (gl.*(setter.uniformfProc))(info.location, info.arraySize, reinterpret_cast<const float*>(&ptr[offset]));
256 case UniformSetter::Type::INT:
258 (gl.*(setter.uniformiProc))(info.location, info.arraySize, reinterpret_cast<const int*>(&ptr[offset]));
261 case UniformSetter::Type::MATRIX:
263 (gl.*(setter.uniformMatrixProc))(info.location, info.arraySize, GL_FALSE, reinterpret_cast<const float*>(&ptr[offset]));
266 case UniformSetter::Type::UNDEFINED:
273 memmove(mImpl->uniformData.data(), ptr, mImpl->uniformData.size());
276 void ProgramImpl::BuildStandaloneUniformCache()
278 const auto& reflection = GetReflection();
279 const auto& extraInfos = reflection.GetStandaloneUniformExtraInfo();
281 // Prepare pointers to the uniform setter calls
282 mImpl->uniformSetters.resize(extraInfos.size());
284 for(const auto& info : extraInfos)
286 auto type = GLTypeConversion(info.type).type;
287 mImpl->uniformSetters[index].type = UniformSetter::Type::UNDEFINED;
290 case GLType::FLOAT_VEC2:
292 mImpl->uniformSetters[index].uniformfProc = &GlAbstraction::Uniform2fv;
293 mImpl->uniformSetters[index].type = UniformSetter::Type::FLOAT;
296 case GLType::FLOAT_VEC3:
298 mImpl->uniformSetters[index].uniformfProc = &GlAbstraction::Uniform3fv;
299 mImpl->uniformSetters[index].type = UniformSetter::Type::FLOAT;
302 case GLType::FLOAT_VEC4:
304 mImpl->uniformSetters[index].uniformfProc = &GlAbstraction::Uniform4fv;
305 mImpl->uniformSetters[index].type = UniformSetter::Type::FLOAT;
308 case GLType::INT_VEC2:
310 mImpl->uniformSetters[index].uniformiProc = &GlAbstraction::Uniform2iv;
311 mImpl->uniformSetters[index].type = UniformSetter::Type::INT;
314 case GLType::INT_VEC3:
316 mImpl->uniformSetters[index].uniformiProc = &GlAbstraction::Uniform3iv;
317 mImpl->uniformSetters[index].type = UniformSetter::Type::INT;
320 case GLType::INT_VEC4:
322 mImpl->uniformSetters[index].uniformiProc = &GlAbstraction::Uniform4iv;
323 mImpl->uniformSetters[index].type = UniformSetter::Type::INT;
327 case GLType::BOOL_VEC2:
328 case GLType::BOOL_VEC3:
329 case GLType::BOOL_VEC4:
332 mImpl->uniformSetters[index].uniformfProc = &GlAbstraction::Uniform1fv;
333 mImpl->uniformSetters[index].type = UniformSetter::Type::FLOAT;
336 case GLType::FLOAT_MAT2:
338 mImpl->uniformSetters[index].uniformMatrixProc = &GlAbstraction::UniformMatrix2fv;
339 mImpl->uniformSetters[index].type = UniformSetter::Type::MATRIX;
342 case GLType::FLOAT_MAT3:
344 mImpl->uniformSetters[index].uniformMatrixProc = &GlAbstraction::UniformMatrix3fv;
345 mImpl->uniformSetters[index].type = UniformSetter::Type::MATRIX;
348 case GLType::FLOAT_MAT4:
350 mImpl->uniformSetters[index].uniformMatrixProc = &GlAbstraction::UniformMatrix4fv;
351 mImpl->uniformSetters[index].type = UniformSetter::Type::MATRIX;
354 case GLType::SAMPLER_2D:
355 case GLType::SAMPLER_CUBE:
366 // Destroy GL resources of implementation. This should happen
367 // only if there's no more pipelines using this program so
368 // it is safe to do it in the destructor
369 if(!mProgram->Release())
375 const GLES::Reflection& Program::GetReflection() const
377 return mProgram->GetReflection();
380 EglGraphicsController& Program::GetController() const
382 return GetImplementation()->GetController();
385 const ProgramCreateInfo& Program::GetCreateInfo() const
387 return GetImplementation()->GetCreateInfo();
390 void Program::DiscardResource()
392 GetController().DiscardResource(this);
395 }; // namespace Dali::Graphics::GLES