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| |
| #ifndef QT3DRENDER_RENDER_UNIFORM_P_H |
| #define QT3DRENDER_RENDER_UNIFORM_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 <qt3drender_global.h> |
| #include <Qt3DCore/qnodeid.h> |
| #include <Qt3DCore/private/matrix4x4_p.h> |
| #include <Qt3DCore/private/vector3d_p.h> |
| #include <Qt3DCore/private/vector4d_p.h> |
| #include <Qt3DRender/private/qt3drender_global_p.h> |
| #include <QMatrix4x4> |
| #include <QVector2D> |
| #include <QVector3D> |
| #include <QColor> |
| |
| #include <QDebug> |
| #include <string.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| namespace Qt3DRender { |
| namespace Render { |
| |
| enum UniformType { |
| Float = 0, |
| Vec2, |
| Vec3, |
| Vec4, |
| Double, |
| DVec2, |
| DVec3, |
| DVec4, |
| Int, |
| IVec2, |
| IVec3, |
| IVec4, |
| UInt, |
| UIVec2, |
| UIVec3, |
| UIVec4, |
| Bool, |
| BVec2, |
| BVec3, |
| BVec4, |
| Mat2, |
| Mat3, |
| Mat4, |
| Mat2x3, |
| Mat3x2, |
| Mat2x4, |
| Mat4x2, |
| Mat3x4, |
| Mat4x3, |
| Sampler, |
| Image, |
| Unknown |
| }; |
| |
| class Q_3DRENDERSHARED_PRIVATE_EXPORT UniformValue |
| { |
| public: |
| enum ValueType { |
| ScalarValue, |
| NodeId, |
| TextureValue, |
| BufferValue, |
| ShaderImageValue |
| }; |
| |
| // UniformValue implicitely converts doubles to floats to ensure |
| // correct rendering behavior for the cases where Qt3D parameters created from |
| // a double or QVariant(double) are used to fill uniform values that in reality |
| // should be floats. This occur especially with QML where qreal might be double |
| // and not float. Otherwise, at when filling the uniforms, calling constData<float> |
| // on something that contains a double will result in wrong values |
| |
| UniformValue() |
| : m_data(4) |
| { |
| memset(m_data.data(), 0, m_data.size() * sizeof(float)); |
| } |
| |
| UniformValue(int i) : UniformValue() { data<int>()[0] = i; } |
| UniformValue(uint i) : UniformValue() { data<uint>()[0] = i; } |
| UniformValue(float f) : UniformValue() { data<float>()[0] = f; } |
| UniformValue(double d) : UniformValue() { data<float>()[0] = d; } // Double to float conversion |
| UniformValue(bool b) : UniformValue() { data<bool>()[0] = b; } |
| UniformValue(const QVector2D &vec2) : UniformValue() { memcpy(m_data.data(), &vec2, sizeof(QVector2D)); } |
| UniformValue(const Vector3D &vec3) : UniformValue() { memcpy(m_data.data(), &vec3, sizeof(Vector3D)); } |
| UniformValue(const Vector4D &vec4) : m_data(sizeof(Vector4D) / sizeof(float)) { memcpy(m_data.data(), &vec4, sizeof(Vector4D)); } |
| |
| UniformValue(const QMatrix3x3 &mat33) |
| : m_data(9) |
| { |
| // Use constData because we want column-major layout |
| memcpy(m_data.data(), mat33.constData(), 9 * sizeof(float)); |
| } |
| |
| // We don t want the QMatrix4x4 builder to use sizeof since QMatrix4x4 contains a type flag |
| #if defined(__SSE2__) || defined(__AVX2__) |
| UniformValue(const Matrix4x4 &mat44) |
| : m_data(sizeof(Matrix4x4) / sizeof(float)) |
| { |
| // Use constData because we want column-major layout |
| memcpy(m_data.data(), &mat44, sizeof(Matrix4x4)); |
| } |
| #else |
| UniformValue(const QMatrix4x4 &mat44) |
| : m_data(16) |
| { |
| // Use constData because we want column-major layout |
| memcpy(m_data.data(), mat44.constData(), 16 * sizeof(float)); |
| } |
| #endif |
| |
| UniformValue(const QVector<QMatrix4x4> &v) |
| : m_data(16 * v.size()) |
| { |
| int offset = 0; |
| const int byteSize = 16 * sizeof(float); |
| float *data = m_data.data(); |
| for (const auto &m : v) { |
| memcpy(data + offset, m.constData(), byteSize); |
| offset += 16; |
| } |
| } |
| |
| // Reserve data to be filled in later |
| UniformValue(int byteSize, ValueType valueType) |
| : m_data(byteSize / sizeof(float)) |
| , m_valueType(valueType) |
| { |
| } |
| |
| // For nodes which will later be replaced by a Texture or Buffer |
| UniformValue(Qt3DCore::QNodeId id) |
| : m_data(sizeof(Qt3DCore::QNodeId) / sizeof(float)) |
| { |
| m_valueType = NodeId; |
| memcpy(m_data.data(), &id, sizeof(Qt3DCore::QNodeId)); |
| } |
| |
| ValueType valueType() const { return m_valueType; } |
| UniformType storedType() const { return m_storedType; } |
| |
| template<typename T> |
| void setData(const QVector<T> &v) |
| { |
| m_data.resize(v.size() * sizeof(T) / sizeof(float)); |
| m_valueType = ScalarValue; |
| float *data = m_data.data(); |
| memcpy(data, v.constData(), v.size() * sizeof(T)); |
| } |
| |
| static UniformValue fromVariant(const QVariant &variant); |
| |
| int byteSize() const { return m_data.size() * sizeof(float); } |
| |
| template<typename T> |
| const T *constData() const |
| { |
| return reinterpret_cast<const T *>(m_data.constData()); |
| } |
| |
| template<typename T> |
| T *data() |
| { |
| return reinterpret_cast<T *>(m_data.data()); |
| } |
| |
| bool operator==(const UniformValue &other) const |
| { |
| return other.m_data == m_data; |
| } |
| |
| bool operator!=(const UniformValue &other) const |
| { |
| return !(*this == other); |
| } |
| private: |
| // Allocate 16 floats on stack |
| // For larger elements, heap allocation will be used |
| QVarLengthArray<float, 16> m_data; |
| |
| ValueType m_valueType = ScalarValue; |
| |
| // TODO: Replace this hack see QTBUG-57510 |
| UniformType m_storedType = Unknown; |
| }; |
| |
| template<> |
| Q_3DRENDERSHARED_PRIVATE_EXPORT void UniformValue::setData<QMatrix4x4>(const QVector<QMatrix4x4> &v); |
| |
| } // namespace Render |
| } // namespace Qt3DRender |
| |
| QT_END_NAMESPACE |
| |
| Q_DECLARE_METATYPE(Qt3DRender::Render::UniformType) // LCOV_EXCL_LINE |
| |
| #endif // QT3DRENDER_RENDER_UNIFORM_P_H |