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shaders/gl_program_pool.cpp
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r.kuznetsov
[drape][metal] Added states.
25 сен 2018, 12:33
25 сен 2018, 12:33
a81f1fc
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#include "shaders/gl_program_pool.hpp" #include "shaders/program_params.hpp" #include "shaders/gl_shaders.hpp" #include "drape/gl_gpu_program.hpp" #include "drape/gl_functions.hpp" namespace gpu { GLProgramPool::GLProgramPool(dp::ApiVersion apiVersion) : m_apiVersion(apiVersion) { ProgramParams::Init(); if (m_apiVersion == dp::ApiVersion::OpenGLES3) { #ifdef OMIM_OS_DESKTOP m_baseDefines = std::string(GL3_SHADER_VERSION) + "#define GLES3\n"; #else m_baseDefines = std::string(GLES3_SHADER_VERSION); #endif } } GLProgramPool::~GLProgramPool() { GLFunctions::glUseProgram(0); ProgramParams::Destroy(); } drape_ptr<dp::GpuProgram> GLProgramPool::Get(Program program) { auto const programInfo = GetProgramInfo(m_apiVersion, program); auto vertexShader = GetShader(programInfo.m_vertexShaderName, programInfo.m_vertexShaderSource, dp::Shader::Type::VertexShader); auto fragmentShader = GetShader(programInfo.m_fragmentShaderName, programInfo.m_fragmentShaderSource, dp::Shader::Type::FragmentShader); auto const name = DebugPrint(program); return make_unique_dp<dp::GLGpuProgram>(name, vertexShader, fragmentShader); } void GLProgramPool::SetDefines(std::string const & defines) { m_defines = defines; } ref_ptr<dp::Shader> GLProgramPool::GetShader(std::string const & name, std::string const & source, dp::Shader::Type type) { auto const it = m_shaders.find(name); if (it != m_shaders.end()) return make_ref(it->second); auto shader = make_unique_dp<dp::Shader>(name, source, m_baseDefines + m_defines, type); auto result = make_ref(shader); m_shaders[name] = std::move(shader); return result; } } // namespace gpu