735 lines
18 KiB
C++
735 lines
18 KiB
C++
// Copyright (C) 2014 Jérôme Leclercq
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// This file is part of the "Nazara Engine - Renderer module"
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// For conditions of distribution and use, see copyright notice in Config.hpp
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#include <Nazara/Renderer/Shader.hpp>
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#include <Nazara/Core/Error.hpp>
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#include <Nazara/Renderer/Context.hpp>
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#include <Nazara/Renderer/OpenGL.hpp>
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#include <Nazara/Renderer/Renderer.hpp>
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#include <Nazara/Renderer/ShaderStage.hpp>
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#include <Nazara/Renderer/Debug.hpp>
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NzShader::NzShader() :
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m_linked(false),
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m_program(0)
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{
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}
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NzShader::NzShader(NzShader&& shader) :
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m_linked(shader.m_linked),
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m_program(shader.m_program)
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{
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for (unsigned int i = 0; i <= nzShaderStage_Max; ++i)
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m_attachedShaders[i] = std::move(shader.m_attachedShaders[i]);
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shader.m_linked = false;
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shader.m_program = 0;
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}
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NzShader::~NzShader()
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{
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Destroy();
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}
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void NzShader::AttachStage(nzShaderStage stage, const NzShaderStage& shaderStage)
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{
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#if NAZARA_RENDERER_SAFE
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if (!m_program)
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{
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NazaraError("Invalid program");
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return;
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}
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if (!shaderStage.IsValid())
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{
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NazaraError("Invalid shader stage");
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return;
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}
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if (!shaderStage.IsCompiled())
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{
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NazaraError("Shader stage must be compiled");
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return;
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}
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#endif
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unsigned int shader = shaderStage.GetOpenGLID();
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#if NAZARA_RENDERER_SAFE
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if (std::find(m_attachedShaders[stage].begin(), m_attachedShaders[stage].end(), shader) != m_attachedShaders[stage].end())
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{
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NazaraError("Shader stage is already attached");
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return;
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}
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#endif
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glAttachShader(m_program, shader);
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m_attachedShaders[stage].push_back(shader);
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}
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bool NzShader::AttachStageFromFile(nzShaderStage stage, const NzString& filePath)
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{
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NzShaderStage shaderStage(stage);
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if (!shaderStage.IsValid())
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{
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NazaraError("Failed to create shader stage");
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return false;
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}
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shaderStage.SetSourceFromFile(filePath);
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if (!shaderStage.Compile())
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{
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NazaraError("Failed to compile stage: " + shaderStage.GetLog());
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return false;
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}
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AttachStage(stage, shaderStage);
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return true;
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}
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bool NzShader::AttachStageFromSource(nzShaderStage stage, const char* source, unsigned int length)
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{
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NzShaderStage shaderStage(stage);
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if (!shaderStage.IsValid())
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{
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NazaraError("Failed to create shader stage");
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return false;
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}
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shaderStage.SetSource(source, length);
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if (!shaderStage.Compile())
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{
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NazaraError("Failed to compile stage: " + shaderStage.GetLog());
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return false;
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}
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AttachStage(stage, shaderStage);
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return true;
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}
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bool NzShader::AttachStageFromSource(nzShaderStage stage, const NzString& source)
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{
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NzShaderStage shaderStage(stage);
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if (!shaderStage.IsValid())
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{
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NazaraError("Failed to create shader stage");
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return false;
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}
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shaderStage.SetSource(source);
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if (!shaderStage.Compile())
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{
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NazaraError("Failed to compile stage: " + shaderStage.GetLog());
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return false;
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}
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AttachStage(stage, shaderStage);
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return true;
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}
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void NzShader::Bind() const
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{
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NzOpenGL::BindProgram(m_program);
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}
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bool NzShader::Create()
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{
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NzContext::EnsureContext();
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m_program = glCreateProgram();
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if (!m_program)
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{
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NazaraError("Failed to create program");
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return false;
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}
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m_linked = false;
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glBindAttribLocation(m_program, NzOpenGL::AttributeIndex[nzAttributeUsage_InstanceData0], "InstanceData0");
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glBindAttribLocation(m_program, NzOpenGL::AttributeIndex[nzAttributeUsage_InstanceData1], "InstanceData1");
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glBindAttribLocation(m_program, NzOpenGL::AttributeIndex[nzAttributeUsage_InstanceData2], "InstanceData2");
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glBindAttribLocation(m_program, NzOpenGL::AttributeIndex[nzAttributeUsage_InstanceData3], "InstanceData3");
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glBindAttribLocation(m_program, NzOpenGL::AttributeIndex[nzAttributeUsage_InstanceData4], "InstanceData4");
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glBindAttribLocation(m_program, NzOpenGL::AttributeIndex[nzAttributeUsage_InstanceData5], "InstanceData5");
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glBindAttribLocation(m_program, NzOpenGL::AttributeIndex[nzAttributeUsage_Normal], "VertexNormal");
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glBindAttribLocation(m_program, NzOpenGL::AttributeIndex[nzAttributeUsage_Position], "VertexPosition");
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glBindAttribLocation(m_program, NzOpenGL::AttributeIndex[nzAttributeUsage_Tangent], "VertexTangent");
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glBindAttribLocation(m_program, NzOpenGL::AttributeIndex[nzAttributeUsage_TexCoord], "VertexTexCoord");
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glBindAttribLocation(m_program, NzOpenGL::AttributeIndex[nzAttributeUsage_Userdata0], "VertexUserdata0");
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glBindAttribLocation(m_program, NzOpenGL::AttributeIndex[nzAttributeUsage_Userdata1], "VertexUserdata1");
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glBindAttribLocation(m_program, NzOpenGL::AttributeIndex[nzAttributeUsage_Userdata2], "VertexUserdata2");
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glBindAttribLocation(m_program, NzOpenGL::AttributeIndex[nzAttributeUsage_Userdata3], "VertexUserdata3");
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glBindAttribLocation(m_program, NzOpenGL::AttributeIndex[nzAttributeUsage_Userdata4], "VertexUserdata4");
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glBindAttribLocation(m_program, NzOpenGL::AttributeIndex[nzAttributeUsage_Userdata5], "VertexUserdata5");
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if (NzRenderer::HasCapability(nzRendererCap_MultipleRenderTargets))
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{
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NzString uniform;
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uniform = "RenderTarget";
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unsigned int maxRenderTargets = NzRenderer::GetMaxRenderTargets();
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for (unsigned int i = 0; i < maxRenderTargets; ++i)
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{
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NzString uniformName = uniform + NzString::Number(i);
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glBindFragDataLocation(m_program, i, uniformName.GetConstBuffer());
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}
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}
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if (NzOpenGL::IsSupported(nzOpenGLExtension_GetProgramBinary))
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glProgramParameteri(m_program, GL_PROGRAM_BINARY_RETRIEVABLE_HINT, GL_TRUE);
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return true;
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}
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void NzShader::Destroy()
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{
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NzContext::EnsureContext();
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NzOpenGL::DeleteProgram(m_program);
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}
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NzByteArray NzShader::GetBinary() const
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{
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NzByteArray byteArray;
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NzContext::EnsureContext();
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GLint binaryLength = 0;
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glGetProgramiv(m_program, GL_PROGRAM_BINARY_LENGTH, &binaryLength);
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if (binaryLength > 0)
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{
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byteArray.Resize(sizeof(nzUInt64) + binaryLength);
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nzUInt8* buffer = byteArray.GetBuffer();
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GLenum binaryFormat;
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glGetProgramBinary(m_program, binaryLength, nullptr, &binaryFormat, &buffer[sizeof(nzUInt64)]);
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// On stocke le format au début du binaire
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*reinterpret_cast<nzUInt64*>(&buffer[0]) = binaryFormat;
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}
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return byteArray;
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}
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NzString NzShader::GetLog() const
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{
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#if NAZARA_RENDERER_SAFE
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if (!m_program)
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{
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NazaraError("Shader is not initialized");
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return NzString();
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}
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#endif
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NzString log;
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GLint length = 0;
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glGetProgramiv(m_program, GL_INFO_LOG_LENGTH, &length);
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if (length > 1) // Le caractère de fin faisant partie du compte
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{
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log.Set(length - 1, '\0'); // La taille retournée est celle du buffer (Avec caractère de fin)
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glGetProgramInfoLog(m_program, length, nullptr, &log[0]);
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}
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else
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log = "No log.";
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return log;
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}
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NzString NzShader::GetSourceCode(nzShaderStage stage) const
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{
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if (!HasStage(stage))
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return NzString();
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NzContext::EnsureContext();
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static const char sep[] = "\n////////////////////////////////////////////////////////////////////////////////\n\n";
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unsigned int totalLength = 0;
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for (unsigned int shader : m_attachedShaders[stage])
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{
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GLint length;
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glGetShaderiv(shader, GL_SHADER_SOURCE_LENGTH, &length);
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totalLength += length - 1;
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}
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totalLength += (m_attachedShaders[stage].size()-1)*(sizeof(sep)/sizeof(char));
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NzString source(totalLength, '\0');
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unsigned int offset = 0;
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for (unsigned int shader : m_attachedShaders[stage])
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{
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if (offset > 0)
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{
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std::memcpy(&source[offset], sep, sizeof(sep)/sizeof(char));
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offset += sizeof(sep)/sizeof(char);
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}
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GLint length;
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glGetShaderSource(shader, totalLength, &length, &source[offset]);
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offset += length;
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}
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return source;
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}
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int NzShader::GetUniformLocation(const NzString& name) const
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{
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NzContext::EnsureContext();
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return glGetUniformLocation(m_program, name.GetConstBuffer());
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}
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int NzShader::GetUniformLocation(nzShaderUniform shaderUniform) const
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{
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return m_uniformLocations[shaderUniform];
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}
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bool NzShader::HasStage(nzShaderStage stage) const
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{
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return !m_attachedShaders[stage].empty();
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}
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bool NzShader::IsBinaryRetrievable() const
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{
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return NzOpenGL::IsSupported(nzOpenGLExtension_GetProgramBinary);
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}
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bool NzShader::IsLinked() const
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{
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return m_linked;
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}
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bool NzShader::IsValid() const
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{
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return m_program != 0;
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}
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bool NzShader::Link()
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{
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NzContext::EnsureContext();
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glLinkProgram(m_program);
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return PostLinkage();
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}
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bool NzShader::LoadFromBinary(const void* buffer, unsigned int size)
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{
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#if NAZARA_RENDERER_SAFE
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if (!glProgramBinary)
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{
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NazaraError("GL_ARB_get_program_binary not supported");
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return false;
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}
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if (!buffer || size < sizeof(nzUInt64))
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{
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NazaraError("Invalid buffer");
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return false;
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}
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#endif
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NzContext::EnsureContext();
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const nzUInt8* ptr = reinterpret_cast<const nzUInt8*>(buffer);
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// On récupère le format au début du binaire
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///TODO: ByteStream ?
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GLenum binaryFormat = static_cast<GLenum>(*reinterpret_cast<const nzUInt64*>(&ptr[0]));
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ptr += sizeof(nzUInt64);
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glProgramBinary(m_program, binaryFormat, ptr, size - sizeof(nzUInt64));
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return PostLinkage();
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}
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bool NzShader::LoadFromBinary(const NzByteArray& byteArray)
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{
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return LoadFromBinary(byteArray.GetConstBuffer(), byteArray.GetSize());
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}
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void NzShader::SendBoolean(int location, bool value) const
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{
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if (glProgramUniform1i)
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glProgramUniform1i(m_program, location, value);
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else
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{
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NzOpenGL::BindProgram(m_program);
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glUniform1i(location, value);
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}
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}
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void NzShader::SendColor(int location, const NzColor& color) const
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{
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NzVector4f vecColor(color.r/255.f, color.g/255.f, color.b/255.f, color.a/255.f);
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if (glProgramUniform4fv)
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glProgramUniform4fv(m_program, location, 1, vecColor);
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else
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{
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NzOpenGL::BindProgram(m_program);
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glUniform4fv(location, 1, vecColor);
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}
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}
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void NzShader::SendDouble(int location, double value) const
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{
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if (glProgramUniform1d)
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glProgramUniform1d(m_program, location, value);
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else
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{
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NzOpenGL::BindProgram(m_program);
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glUniform1d(location, value);
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}
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}
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void NzShader::SendDoubleArray(int location, const double* values, unsigned int count) const
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{
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if (glProgramUniform1dv)
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glProgramUniform1dv(m_program, location, count, values);
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else
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{
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NzOpenGL::BindProgram(m_program);
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glUniform1dv(location, count, values);
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}
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}
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void NzShader::SendFloat(int location, float value) const
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{
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if (glProgramUniform1f)
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glProgramUniform1f(m_program, location, value);
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else
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{
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NzOpenGL::BindProgram(m_program);
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glUniform1f(location, value);
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}
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}
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void NzShader::SendFloatArray(int location, const float* values, unsigned int count) const
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{
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if (glProgramUniform1fv)
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glProgramUniform1fv(m_program, location, count, values);
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else
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{
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NzOpenGL::BindProgram(m_program);
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glUniform1fv(location, count, values);
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}
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}
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void NzShader::SendInteger(int location, int value) const
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{
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if (glProgramUniform1i)
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glProgramUniform1i(m_program, location, value);
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else
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{
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NzOpenGL::BindProgram(m_program);
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glUniform1i(location, value);
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}
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}
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void NzShader::SendIntegerArray(int location, const int* values, unsigned int count) const
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{
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if (glProgramUniform1iv)
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glProgramUniform1iv(m_program, location, count, values);
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else
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{
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NzOpenGL::BindProgram(m_program);
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glUniform1iv(location, count, values);
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}
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}
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void NzShader::SendMatrix(int location, const NzMatrix4d& matrix) const
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{
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if (glProgramUniformMatrix4dv)
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glProgramUniformMatrix4dv(m_program, location, 1, GL_FALSE, matrix);
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else
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{
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NzOpenGL::BindProgram(m_program);
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glUniformMatrix4dv(location, 1, GL_FALSE, matrix);
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}
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}
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void NzShader::SendMatrix(int location, const NzMatrix4f& matrix) const
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{
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if (glProgramUniformMatrix4fv)
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glProgramUniformMatrix4fv(m_program, location, 1, GL_FALSE, matrix);
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else
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{
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NzOpenGL::BindProgram(m_program);
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glUniformMatrix4fv(location, 1, GL_FALSE, matrix);
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}
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}
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void NzShader::SendVector(int location, const NzVector2d& vector) const
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{
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if (glProgramUniform2dv)
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glProgramUniform2dv(m_program, location, 1, vector);
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else
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{
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NzOpenGL::BindProgram(m_program);
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glUniform2dv(location, 1, vector);
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}
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}
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void NzShader::SendVector(int location, const NzVector2f& vector) const
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{
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if (glProgramUniform2fv)
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glProgramUniform2fv(m_program, location, 1, vector);
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else
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{
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NzOpenGL::BindProgram(m_program);
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glUniform2fv(location, 1, vector);
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}
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}
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void NzShader::SendVector(int location, const NzVector2i& vector) const
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{
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if (glProgramUniform2fv)
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glProgramUniform2iv(m_program, location, 1, vector);
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else
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{
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NzOpenGL::BindProgram(m_program);
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glUniform2iv(location, 1, vector);
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}
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}
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void NzShader::SendVector(int location, const NzVector3d& vector) const
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{
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if (glProgramUniform3dv)
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glProgramUniform3dv(m_program, location, 1, vector);
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else
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{
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NzOpenGL::BindProgram(m_program);
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glUniform3dv(location, 1, vector);
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}
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}
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void NzShader::SendVector(int location, const NzVector3f& vector) const
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{
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if (glProgramUniform3fv)
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glProgramUniform3fv(m_program, location, 1, vector);
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else
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{
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NzOpenGL::BindProgram(m_program);
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glUniform3fv(location, 1, vector);
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}
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}
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void NzShader::SendVector(int location, const NzVector3i& vector) const
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{
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if (glProgramUniform3iv)
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glProgramUniform3iv(m_program, location, 1, vector);
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else
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{
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NzOpenGL::BindProgram(m_program);
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glUniform3iv(location, 1, vector);
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}
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}
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void NzShader::SendVector(int location, const NzVector4d& vector) const
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{
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if (glProgramUniform4dv)
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glProgramUniform4dv(m_program, location, 1, vector);
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else
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{
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NzOpenGL::BindProgram(m_program);
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glUniform4dv(location, 1, vector);
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}
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}
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void NzShader::SendVector(int location, const NzVector4f& vector) const
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{
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if (glProgramUniform4fv)
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glProgramUniform4fv(m_program, location, 1, vector);
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else
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{
|
|
NzOpenGL::BindProgram(m_program);
|
|
glUniform4fv(location, 1, vector);
|
|
}
|
|
}
|
|
|
|
void NzShader::SendVector(int location, const NzVector4i& vector) const
|
|
{
|
|
if (glProgramUniform4iv)
|
|
glProgramUniform4iv(m_program, location, 1, vector);
|
|
else
|
|
{
|
|
NzOpenGL::BindProgram(m_program);
|
|
glUniform4iv(location, 1, vector);
|
|
}
|
|
}
|
|
|
|
void NzShader::SendVectorArray(int location, const NzVector2d* vectors, unsigned int count) const
|
|
{
|
|
if (glProgramUniform2dv)
|
|
glProgramUniform2dv(m_program, location, count, reinterpret_cast<const double*>(vectors));
|
|
else
|
|
{
|
|
NzOpenGL::BindProgram(m_program);
|
|
glUniform2dv(location, count, reinterpret_cast<const double*>(vectors));
|
|
}
|
|
}
|
|
|
|
void NzShader::SendVectorArray(int location, const NzVector2f* vectors, unsigned int count) const
|
|
{
|
|
if (glProgramUniform2fv)
|
|
glProgramUniform2fv(m_program, location, count, reinterpret_cast<const float*>(vectors));
|
|
else
|
|
{
|
|
NzOpenGL::BindProgram(m_program);
|
|
glUniform2fv(location, count, reinterpret_cast<const float*>(vectors));
|
|
}
|
|
}
|
|
|
|
void NzShader::SendVectorArray(int location, const NzVector2i* vectors, unsigned int count) const
|
|
{
|
|
if (glProgramUniform2iv)
|
|
glProgramUniform2iv(m_program, location, count, reinterpret_cast<const int*>(vectors));
|
|
else
|
|
{
|
|
NzOpenGL::BindProgram(m_program);
|
|
glUniform2iv(location, count, reinterpret_cast<const int*>(vectors));
|
|
}
|
|
}
|
|
|
|
void NzShader::SendVectorArray(int location, const NzVector3d* vectors, unsigned int count) const
|
|
{
|
|
if (glProgramUniform3dv)
|
|
glProgramUniform3dv(m_program, location, count, reinterpret_cast<const double*>(vectors));
|
|
else
|
|
{
|
|
NzOpenGL::BindProgram(m_program);
|
|
glUniform3dv(location, count, reinterpret_cast<const double*>(vectors));
|
|
}
|
|
}
|
|
|
|
void NzShader::SendVectorArray(int location, const NzVector3f* vectors, unsigned int count) const
|
|
{
|
|
if (glProgramUniform3fv)
|
|
glProgramUniform3fv(m_program, location, count, reinterpret_cast<const float*>(vectors));
|
|
else
|
|
{
|
|
NzOpenGL::BindProgram(m_program);
|
|
glUniform3fv(location, count, reinterpret_cast<const float*>(vectors));
|
|
}
|
|
}
|
|
|
|
void NzShader::SendVectorArray(int location, const NzVector3i* vectors, unsigned int count) const
|
|
{
|
|
if (glProgramUniform3iv)
|
|
glProgramUniform3iv(m_program, location, count, reinterpret_cast<const int*>(vectors));
|
|
else
|
|
{
|
|
NzOpenGL::BindProgram(m_program);
|
|
glUniform3iv(location, count, reinterpret_cast<const int*>(vectors));
|
|
}
|
|
}
|
|
|
|
void NzShader::SendVectorArray(int location, const NzVector4d* vectors, unsigned int count) const
|
|
{
|
|
if (glProgramUniform4dv)
|
|
glProgramUniform4dv(m_program, location, count, reinterpret_cast<const double*>(vectors));
|
|
else
|
|
{
|
|
NzOpenGL::BindProgram(m_program);
|
|
glUniform4dv(location, count, reinterpret_cast<const double*>(vectors));
|
|
}
|
|
}
|
|
|
|
void NzShader::SendVectorArray(int location, const NzVector4f* vectors, unsigned int count) const
|
|
{
|
|
if (glProgramUniform4fv)
|
|
glProgramUniform4fv(m_program, location, count, reinterpret_cast<const float*>(vectors));
|
|
else
|
|
{
|
|
NzOpenGL::BindProgram(m_program);
|
|
glUniform4fv(location, count, reinterpret_cast<const float*>(vectors));
|
|
}
|
|
}
|
|
|
|
void NzShader::SendVectorArray(int location, const NzVector4i* vectors, unsigned int count) const
|
|
{
|
|
if (glProgramUniform4iv)
|
|
glProgramUniform4iv(m_program, location, count, reinterpret_cast<const int*>(vectors));
|
|
else
|
|
{
|
|
NzOpenGL::BindProgram(m_program);
|
|
glUniform4iv(location, count, reinterpret_cast<const int*>(vectors));
|
|
}
|
|
}
|
|
|
|
unsigned int NzShader::GetOpenGLID() const
|
|
{
|
|
return m_program;
|
|
}
|
|
|
|
NzShader& NzShader::operator=(NzShader&& shader)
|
|
{
|
|
Destroy();
|
|
|
|
for (unsigned int i = 0; i <= nzShaderStage_Max; ++i)
|
|
m_attachedShaders[i] = std::move(shader.m_attachedShaders[i]);
|
|
|
|
m_linked = shader.m_linked;
|
|
m_program = shader.m_program;
|
|
|
|
shader.m_linked = false;
|
|
shader.m_program = 0;
|
|
|
|
return *this;
|
|
}
|
|
|
|
bool NzShader::IsStageSupported(nzShaderStage stage)
|
|
{
|
|
return NzShaderStage::IsSupported(stage);
|
|
}
|
|
|
|
bool NzShader::PostLinkage()
|
|
{
|
|
GLint success;
|
|
glGetProgramiv(m_program, GL_LINK_STATUS, &success);
|
|
|
|
m_linked = (success == GL_TRUE);
|
|
if (m_linked)
|
|
{
|
|
// Pour éviter de se tromper entre le nom et la constante
|
|
#define CacheUniform(name) m_uniformLocations[nzShaderUniform_##name] = glGetUniformLocation(m_program, #name)
|
|
|
|
CacheUniform(EyePosition);
|
|
CacheUniform(InvProjMatrix);
|
|
CacheUniform(InvTargetSize);
|
|
CacheUniform(InvViewMatrix);
|
|
CacheUniform(InvViewProjMatrix);
|
|
CacheUniform(InvWorldMatrix);
|
|
CacheUniform(InvWorldViewMatrix);
|
|
CacheUniform(InvWorldViewProjMatrix);
|
|
CacheUniform(ProjMatrix);
|
|
CacheUniform(SceneAmbient);
|
|
CacheUniform(TargetSize);
|
|
CacheUniform(ViewMatrix);
|
|
CacheUniform(ViewProjMatrix);
|
|
CacheUniform(WorldMatrix);
|
|
CacheUniform(WorldViewMatrix);
|
|
CacheUniform(WorldViewProjMatrix);
|
|
|
|
#undef CacheUniform
|
|
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
NazaraError("Failed to compile shader stage: " + GetLog());
|
|
return false;
|
|
}
|
|
}
|