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Diffstat (limited to 'src/plugins/renderers/opengl/renderer/shaderparameterpack_p.h')
| -rw-r--r-- | src/plugins/renderers/opengl/renderer/shaderparameterpack_p.h | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/src/plugins/renderers/opengl/renderer/shaderparameterpack_p.h b/src/plugins/renderers/opengl/renderer/shaderparameterpack_p.h new file mode 100644 index 000000000..045081afd --- /dev/null +++ b/src/plugins/renderers/opengl/renderer/shaderparameterpack_p.h @@ -0,0 +1,221 @@ +/**************************************************************************** +** +** Copyright (C) 2014 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. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QT3DRENDER_RENDER_SHADERPARAMETERPACK_P_H +#define QT3DRENDER_RENDER_SHADERPARAMETERPACK_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists for the convenience +// of other Qt classes. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include <QVariant> +#include <QByteArray> +#include <QVector> +#include <QOpenGLShaderProgram> +#include <Qt3DCore/qnodeid.h> +#include <Qt3DRender/private/renderlogging_p.h> +#include <Qt3DRender/private/uniform_p.h> +#include <shadervariables_p.h> + +QT_BEGIN_NAMESPACE + +class QOpenGLShaderProgram; + +namespace Qt3DCore { +class QFrameAllocator; +} + +namespace Qt3DRender { +namespace Render { + +class GraphicsContext; + +struct BlockToUBO { + int m_blockIndex; + Qt3DCore::QNodeId m_bufferID; + bool m_needsUpdate; + QHash<QString, QVariant> m_updatedProperties; +}; +QT3D_DECLARE_TYPEINFO_2(Qt3DRender, Render, BlockToUBO, Q_MOVABLE_TYPE) + +struct BlockToSSBO { + int m_blockIndex; + int m_bindingIndex; + Qt3DCore::QNodeId m_bufferID; +}; +QT3D_DECLARE_TYPEINFO_2(Qt3DRender, Render, BlockToSSBO, Q_PRIMITIVE_TYPE) + + +struct PackUniformHash +{ + QVector<int> keys; + QVector<UniformValue> values; + + PackUniformHash() + { + keys.reserve(10); + values.reserve(10); + } + + void insert(int key, const UniformValue &value) + { + const int idx = keys.indexOf(key); + if (idx != -1) { + values[idx] = value; + } else { + keys.push_back(key); + values.push_back(value); + } + } + + UniformValue value(int key) const + { + const int idx = keys.indexOf(key); + if (idx != -1) + return values.at(idx); + return UniformValue(); + } + + UniformValue& value(int key) + { + const int idx = keys.indexOf(key); + if (idx != -1) + return values[idx]; + insert(key, UniformValue()); + return value(key); + } + + void erase(int idx) + { + keys.removeAt(idx); + values.removeAt(idx); + } + + bool contains(int key) const + { + return keys.contains(key); + } +}; + +class Q_AUTOTEST_EXPORT ShaderParameterPack +{ +public: + ~ShaderParameterPack(); + + void setUniform(const int glslNameId, const UniformValue &val); + void setTexture(const int glslNameId, int uniformArrayIndex, Qt3DCore::QNodeId id); + void setImage(const int glslNameId, int uniformArrayIndex, Qt3DCore::QNodeId id); + + void setUniformBuffer(BlockToUBO blockToUBO); + void setShaderStorageBuffer(BlockToSSBO blockToSSBO); + void setSubmissionUniform(const ShaderUniform &uniform); + + inline PackUniformHash &uniforms() { return m_uniforms; } + inline const PackUniformHash &uniforms() const { return m_uniforms; } + UniformValue uniform(const int glslNameId) const { return m_uniforms.value(glslNameId); } + + + struct NamedResource + { + enum Type { + Texture = 0, + Image + }; + + NamedResource() {} + NamedResource(const int glslNameId, Qt3DCore::QNodeId texId, + int uniformArrayIndex, Type type) + : glslNameId(glslNameId) + , nodeId(texId) + , uniformArrayIndex(uniformArrayIndex) + , type(type) + { } + + int glslNameId; + Qt3DCore::QNodeId nodeId; + int uniformArrayIndex; + Type type; + + bool operator==(const NamedResource &other) const + { + return glslNameId == other.glslNameId && + nodeId == other.nodeId && + uniformArrayIndex == other.uniformArrayIndex && + type == other.type; + } + + bool operator!=(const NamedResource &other) const + { + return !(*this == other); + } + }; + + inline QVector<NamedResource> textures() const { return m_textures; } + inline QVector<NamedResource> images() const { return m_images; } + inline QVector<BlockToUBO> uniformBuffers() const { return m_uniformBuffers; } + inline QVector<BlockToSSBO> shaderStorageBuffers() const { return m_shaderStorageBuffers; } + inline QVector<ShaderUniform> submissionUniforms() const { return m_submissionUniforms; } +private: + PackUniformHash m_uniforms; + + QVector<NamedResource> m_textures; + QVector<NamedResource> m_images; + QVector<BlockToUBO> m_uniformBuffers; + QVector<BlockToSSBO> m_shaderStorageBuffers; + QVector<ShaderUniform> m_submissionUniforms; + + friend class RenderView; +}; +QT3D_DECLARE_TYPEINFO_2(Qt3DRender, Render, ShaderParameterPack::NamedResource, Q_PRIMITIVE_TYPE) + +} // namespace Render +} // namespace Qt3DRender + +QT_END_NAMESPACE + +Q_DECLARE_METATYPE(Qt3DRender::Render::ShaderParameterPack) + +#endif // QT3DRENDER_RENDER_SHADERPARAMETERPACK_P_H |