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Diffstat (limited to 'src/render/Qt3DSRenderShader.h')
-rw-r--r-- | src/render/Qt3DSRenderShader.h | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/src/render/Qt3DSRenderShader.h b/src/render/Qt3DSRenderShader.h new file mode 100644 index 0000000..8d0a62c --- /dev/null +++ b/src/render/Qt3DSRenderShader.h @@ -0,0 +1,123 @@ +/**************************************************************************** +** +** Copyright (C) 2008-2012 NVIDIA Corporation. +** Copyright (C) 2017 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of Qt 3D Studio. +** +** $QT_BEGIN_LICENSE:GPL$ +** 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 General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3 or (at your option) 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.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-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ +#pragma once +#ifndef QT3DS_RENDER_SHADER_H +#define QT3DS_RENDER_SHADER_H + +#include "foundation/Qt3DSFoundation.h" +#include "foundation/Qt3DSBroadcastingAllocator.h" +#include "foundation/Qt3DSAtomic.h" +#include "render/Qt3DSRenderContext.h" +#include "render/backends/Qt3DSRenderBackend.h" +#include <EASTL/string.h> + +namespace qt3ds { +namespace render { + using namespace foundation; + + class NVRenderContextImpl; + + ///< A shader program is an object composed of a multiple shaders (vertex, fragment, + ///geometry,....) + class NVRenderShader + { + protected: + NVRenderContextImpl &m_Context; ///< pointer to context + NVFoundationBase &m_Foundation; ///< pointer to foundation + NVRenderBackend *m_Backend; ///< pointer to backend + NVConstDataRef<QT3DSI8> m_Source; ///< shader source code + bool m_Binary; ///< true for binary programs + eastl::string m_ErrorMessage; ///< contains the error message if linking fails + + public: + /** + * @brief constructor + * + * @param[in] context Pointer to render context + * @param[in] fnd Pointer to foundation + * + * @return No return. + */ + NVRenderShader(NVRenderContextImpl &context, NVFoundationBase &fnd, + NVConstDataRef<QT3DSI8> source, bool binaryProgram) + : m_Context(context) + , m_Foundation(fnd) + , m_Backend(context.GetBackend()) + , m_Source(source) + , m_Binary(binaryProgram) + { + } + + /// @brief destructor + ~NVRenderShader(){} + + /** + * @brief Query if shader compiled succesfuly + * + * @return True if shader is valid. + */ + virtual bool IsValid() = 0; + + /** + * @brief Get Error Message + * + * @param[out] messageLength Pointer to error string + * @param[out] messageLength Size of error meesage + * + * @return no return + */ + virtual void GetErrorMessage(QT3DSI32 *messageLength, const char *errorMessage) + { + // Since we do not have any error message just generate a generic one + if (m_Binary) + m_ErrorMessage = "Binary shader compilation failed"; + + *messageLength = m_ErrorMessage.size(); + errorMessage = m_ErrorMessage.c_str(); + } + + /** + * @brief Get Error Message + * + * + * @return error message. + */ + virtual const char *GetErrorMessage() + { + if (m_Binary) + m_ErrorMessage = "Binary shader compilation failed"; + + return m_ErrorMessage.c_str(); + } + }; +} +} + +#endif |