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Diffstat (limited to 'src/plugins/renderers/opengl/renderer/glshader.cpp')
| -rw-r--r-- | src/plugins/renderers/opengl/renderer/glshader.cpp | 321 |
1 files changed, 321 insertions, 0 deletions
diff --git a/src/plugins/renderers/opengl/renderer/glshader.cpp b/src/plugins/renderers/opengl/renderer/glshader.cpp new file mode 100644 index 000000000..5e92d84c2 --- /dev/null +++ b/src/plugins/renderers/opengl/renderer/glshader.cpp @@ -0,0 +1,321 @@ +/**************************************************************************** +** +** Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB). +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the Qt3D module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "glshader_p.h" +#include <QMutexLocker> +#include <Qt3DRender/private/stringtoint_p.h> +#include <graphicscontext_p.h> +#include <logging_p.h> + +QT_BEGIN_NAMESPACE + +namespace Qt3DRender { + +namespace Render { + +namespace OpenGL { + +GLShader::GLShader() + : m_isLoaded(false) + , m_graphicsContext(nullptr) +{ + m_shaderCode.resize(static_cast<int>(QShaderProgram::Compute) + 1); +} + +void GLShader::setGraphicsContext(GraphicsContext *context) +{ + QMutexLocker lock(&m_mutex); + m_graphicsContext = context; + if (m_graphicsContext) { + m_contextConnection = QObject::connect(m_graphicsContext->openGLContext(), + &QOpenGLContext::aboutToBeDestroyed, + [this] { setGraphicsContext(nullptr); }); + } +} + +GraphicsContext *GLShader::graphicsContext() +{ + QMutexLocker lock(&m_mutex); + return m_graphicsContext; +} + + +QVector<QString> GLShader::uniformsNames() const +{ + return m_uniformsNames; +} + +QVector<QString> GLShader::attributesNames() const +{ + return m_attributesNames; +} + +QVector<QString> GLShader::uniformBlockNames() const +{ + return m_uniformBlockNames; +} + +QVector<QString> GLShader::storageBlockNames() const +{ + return m_shaderStorageBlockNames; +} + +QVector<QByteArray> GLShader::shaderCode() const +{ + return m_shaderCode; +} + +QHash<QString, ShaderUniform> GLShader::activeUniformsForUniformBlock(int blockIndex) const +{ + return m_uniformBlockIndexToShaderUniforms.value(blockIndex); +} + +ShaderUniformBlock GLShader::uniformBlockForBlockIndex(int blockIndex) +{ + for (int i = 0, m = m_uniformBlocks.size(); i < m; ++i) { + if (m_uniformBlocks[i].m_index == blockIndex) { + return m_uniformBlocks[i]; + } + } + return ShaderUniformBlock(); +} + +ShaderUniformBlock GLShader::uniformBlockForBlockNameId(int blockNameId) +{ + for (int i = 0, m = m_uniformBlocks.size(); i < m; ++i) { + if (m_uniformBlocks[i].m_nameId == blockNameId) { + return m_uniformBlocks[i]; + } + } + return ShaderUniformBlock(); +} + +ShaderUniformBlock GLShader::uniformBlockForBlockName(const QString &blockName) +{ + for (int i = 0, m = m_uniformBlocks.size(); i < m; ++i) { + if (m_uniformBlocks[i].m_name == blockName) { + return m_uniformBlocks[i]; + } + } + return ShaderUniformBlock(); +} + +ShaderStorageBlock GLShader::storageBlockForBlockIndex(int blockIndex) +{ + for (int i = 0, m = m_shaderStorageBlockNames.size(); i < m; ++i) { + if (m_shaderStorageBlocks[i].m_index == blockIndex) + return m_shaderStorageBlocks[i]; + } + return ShaderStorageBlock(); +} + +ShaderStorageBlock GLShader::storageBlockForBlockNameId(int blockNameId) +{ + for (int i = 0, m = m_shaderStorageBlockNames.size(); i < m; ++i) { + if (m_shaderStorageBlocks[i].m_nameId == blockNameId) + return m_shaderStorageBlocks[i]; + } + return ShaderStorageBlock(); +} + +ShaderStorageBlock GLShader::storageBlockForBlockName(const QString &blockName) +{ + for (int i = 0, m = m_shaderStorageBlockNames.size(); i < m; ++i) { + if (m_shaderStorageBlocks[i].m_name == blockName) + return m_shaderStorageBlocks[i]; + } + return ShaderStorageBlock(); +} + +void GLShader::prepareUniforms(ShaderParameterPack &pack) +{ + const PackUniformHash &values = pack.uniforms(); + + auto it = values.keys.cbegin(); + const auto end = values.keys.cend(); + + while (it != end) { + // Find if there's a uniform with the same name id + for (const ShaderUniform &uniform : qAsConst(m_uniforms)) { + if (uniform.m_nameId == *it) { + pack.setSubmissionUniform(uniform); + break; + } + } + ++it; + } +} + +void GLShader::setFragOutputs(const QHash<QString, int> &fragOutputs) +{ + { + QMutexLocker lock(&m_mutex); + m_fragOutputs = fragOutputs; + } +// updateDNA(); +} + +const QHash<QString, int> GLShader::fragOutputs() const +{ + QMutexLocker lock(&m_mutex); + return m_fragOutputs; +} + +void GLShader::initializeUniforms(const QVector<ShaderUniform> &uniformsDescription) +{ + m_uniforms = uniformsDescription; + m_uniformsNames.resize(uniformsDescription.size()); + m_uniformsNamesIds.reserve(uniformsDescription.size()); + m_standardUniformNamesIds.reserve(5); + QHash<QString, ShaderUniform> activeUniformsInDefaultBlock; + + static const QVector<int> standardUniformNameIds = { + Shader::modelMatrixNameId, + Shader::viewMatrixNameId, + Shader::projectionMatrixNameId, + Shader::modelViewMatrixNameId, + Shader::viewProjectionMatrixNameId, + Shader::modelViewProjectionNameId, + Shader::mvpNameId, + Shader::inverseModelMatrixNameId, + Shader::inverseViewMatrixNameId, + Shader::inverseProjectionMatrixNameId, + Shader::inverseModelViewNameId, + Shader::inverseViewProjectionMatrixNameId, + Shader::inverseModelViewProjectionNameId, + Shader::modelNormalMatrixNameId, + Shader::modelViewNormalNameId, + Shader::viewportMatrixNameId, + Shader::inverseViewportMatrixNameId, + Shader::aspectRatioNameId, + Shader::exposureNameId, + Shader::gammaNameId, + Shader::timeNameId, + Shader::eyePositionNameId, + Shader::skinningPaletteNameId, + }; + + for (int i = 0, m = uniformsDescription.size(); i < m; i++) { + m_uniformsNames[i] = m_uniforms[i].m_name; + const int nameId = StringToInt::lookupId(m_uniformsNames[i]); + m_uniforms[i].m_nameId = nameId; + + // Is the uniform a Qt3D "Standard" uniform or a user defined one? + if (standardUniformNameIds.contains(nameId)) + m_standardUniformNamesIds.push_back(nameId); + else + m_uniformsNamesIds.push_back(nameId); + + if (uniformsDescription[i].m_blockIndex == -1) { // Uniform is in default block + qCDebug(Shaders) << "Active Uniform in Default Block " << uniformsDescription[i].m_name << uniformsDescription[i].m_blockIndex; + activeUniformsInDefaultBlock.insert(uniformsDescription[i].m_name, uniformsDescription[i]); + } + } + m_uniformBlockIndexToShaderUniforms.insert(-1, activeUniformsInDefaultBlock); +} + +void GLShader::initializeAttributes(const QVector<ShaderAttribute> &attributesDescription) +{ + m_attributes = attributesDescription; + m_attributesNames.resize(attributesDescription.size()); + m_attributeNamesIds.resize(attributesDescription.size()); + for (int i = 0, m = attributesDescription.size(); i < m; i++) { + m_attributesNames[i] = attributesDescription[i].m_name; + m_attributes[i].m_nameId = StringToInt::lookupId(m_attributesNames[i]); + m_attributeNamesIds[i] = m_attributes[i].m_nameId; + qCDebug(Shaders) << "Active Attribute " << attributesDescription[i].m_name; + } +} + +void GLShader::initializeUniformBlocks(const QVector<ShaderUniformBlock> &uniformBlockDescription) +{ + m_uniformBlocks = uniformBlockDescription; + m_uniformBlockNames.resize(uniformBlockDescription.size()); + m_uniformBlockNamesIds.resize(uniformBlockDescription.size()); + for (int i = 0, m = uniformBlockDescription.size(); i < m; ++i) { + m_uniformBlockNames[i] = m_uniformBlocks[i].m_name; + m_uniformBlockNamesIds[i] = StringToInt::lookupId(m_uniformBlockNames[i]); + m_uniformBlocks[i].m_nameId = m_uniformBlockNamesIds[i]; + qCDebug(Shaders) << "Initializing Uniform Block {" << m_uniformBlockNames[i] << "}"; + + // Find all active uniforms for the shader block + QVector<ShaderUniform>::const_iterator uniformsIt = m_uniforms.cbegin(); + const QVector<ShaderUniform>::const_iterator uniformsEnd = m_uniforms.cend(); + + QVector<QString>::const_iterator uniformNamesIt = m_uniformsNames.cbegin(); + const QVector<QString>::const_iterator uniformNamesEnd = m_attributesNames.cend(); + + QHash<QString, ShaderUniform> activeUniformsInBlock; + + while (uniformsIt != uniformsEnd && uniformNamesIt != uniformNamesEnd) { + if (uniformsIt->m_blockIndex == uniformBlockDescription[i].m_index) { + QString uniformName = *uniformNamesIt; + if (!m_uniformBlockNames[i].isEmpty() && !uniformName.startsWith(m_uniformBlockNames[i])) + uniformName = m_uniformBlockNames[i] + QLatin1Char('.') + *uniformNamesIt; + activeUniformsInBlock.insert(uniformName, *uniformsIt); + qCDebug(Shaders) << "Active Uniform Block " << uniformName << " in block " << m_uniformBlockNames[i] << " at index " << uniformsIt->m_blockIndex; + } + ++uniformsIt; + ++uniformNamesIt; + } + m_uniformBlockIndexToShaderUniforms.insert(uniformBlockDescription[i].m_index, activeUniformsInBlock); + } +} + +void GLShader::initializeShaderStorageBlocks(const QVector<ShaderStorageBlock> &shaderStorageBlockDescription) +{ + m_shaderStorageBlocks = shaderStorageBlockDescription; + m_shaderStorageBlockNames.resize(shaderStorageBlockDescription.size()); + m_shaderStorageBlockNamesIds.resize(shaderStorageBlockDescription.size()); + + for (int i = 0, m = shaderStorageBlockDescription.size(); i < m; ++i) { + m_shaderStorageBlockNames[i] = m_shaderStorageBlocks[i].m_name; + m_shaderStorageBlockNamesIds[i] = StringToInt::lookupId(m_shaderStorageBlockNames[i]); + m_shaderStorageBlocks[i].m_nameId =m_shaderStorageBlockNamesIds[i]; + qCDebug(Shaders) << "Initializing Shader Storage Block {" << m_shaderStorageBlockNames[i] << "}"; + } +} + +} // OpenGL + +} // Render + +} // Qt3DRender + +QT_END_NAMESPACE |