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Diffstat (limited to 'src/render/Qt3DSRenderTexture2D.h')
| -rw-r--r-- | src/render/Qt3DSRenderTexture2D.h | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/src/render/Qt3DSRenderTexture2D.h b/src/render/Qt3DSRenderTexture2D.h new file mode 100644 index 0000000..29c7c1b --- /dev/null +++ b/src/render/Qt3DSRenderTexture2D.h @@ -0,0 +1,165 @@ +/**************************************************************************** +** +** 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_QT3DS_RENDER_TEXTURE_2D_H +#define QT3DS_RENDER_QT3DS_RENDER_TEXTURE_2D_H +#include "render/Qt3DSRenderBaseTypes.h" +#include "foundation/Qt3DSRefCounted.h" +#include "foundation/Qt3DSOption.h" +#include "foundation/Qt3DSAtomic.h" +#include "render/backends/Qt3DSRenderBackend.h" +#include "render/Qt3DSRenderTextureBase.h" + +namespace qt3ds { +namespace render { + + class NVRenderContextImpl; + class NVRenderTextureSampler; + + class NVRenderTexture2D : public NVRenderTextureBase, public NVRenderImplemented + { + + private: + QT3DSU32 m_Width; ///< texture width + QT3DSU32 m_Height; ///< texture height + + public: + /** + * @brief constructor + * + * @param[in] context Pointer to context + * @param[in] fnd Pointer to foundation + * @param[in] texTarget Texture target + * + * @return No return. + */ + NVRenderTexture2D( + NVRenderContextImpl &context, NVFoundationBase &fnd, + NVRenderTextureTargetType::Enum texTarget = NVRenderTextureTargetType::Texture2D); + + virtual ~NVRenderTexture2D(); + + // Get the texture details for mipmap level 0 if it was set. + STextureDetails GetTextureDetails() const override; + + /** + * @brief Create GL texture object and upload data + * + * @param[in] newBuffer Texture data for level 0 + * @param[in] inMipLevel Texture level count + * @param[in] width Texture width + * @param[in] height Texture height + * @param[in] format Texture data format + * @param[in] formaInternal Texture internal format + * + * @return No return. + */ + virtual void SetTextureData( + NVDataRef<QT3DSU8> newBuffer, QT3DSU8 inMipLevel, QT3DSU32 width, QT3DSU32 height, + NVRenderTextureFormats::Enum format, + NVRenderTextureFormats::Enum formaInternal = NVRenderTextureFormats::Unknown); + + /** + * @brief Create memory storage for a texture object + * This create a texture storage which is immutable in size and format + * Use this for textures used within compute shaders + * + * @param[in] inLevels Texture level count + * @param[in] width Texture width + * @param[in] height Texture height + * @param[in] formaInternal Texture internal format + * @param[in] format Texture data format of dataBuffer + * @param[in] dataBuffer Texture data for level 0 + * + * @return No return. + */ + virtual void + SetTextureStorage(QT3DSU32 inLevels, QT3DSU32 width, QT3DSU32 height, + NVRenderTextureFormats::Enum formaInternal, + NVRenderTextureFormats::Enum format = NVRenderTextureFormats::Unknown, + NVDataRef<QT3DSU8> dataBuffer = NVDataRef<QT3DSU8>()); + + virtual void SetTextureDataMultisample(QT3DSU32 sampleCount, QT3DSU32 width, QT3DSU32 height, + NVRenderTextureFormats::Enum format); + + bool IsMultisampleTexture() const override + { + return (m_TexTarget == NVRenderTextureTargetType::Texture2D_MS); + } + QT3DSU32 GetSampleCount() const override { return m_SampleCount; } + bool IsImmutableTexture() const override { return m_Immutable; } + + // Update a sub-rect of the image. newBuffer is expected to be a continguous subrect of the + // image. + virtual void SetTextureSubData(NVDataRef<QT3DSU8> newBuffer, QT3DSU8 inMipLevel, QT3DSU32 inXOffset, + QT3DSU32 inYOffset, QT3DSU32 inSubImageWidth, + QT3DSU32 inSubImageHeight, NVRenderTextureFormats::Enum format); + // Generate a set of mipmaps from mipLevel( 0 ). Uses the graphis layer to do this if + // possible + // glGenerateMipmap + virtual void GenerateMipmaps(NVRenderHint::Enum genType = NVRenderHint::Nicest); + + /** + * @brief Bind a texture for shader access + * + * + * @return No return. + */ + void Bind() override; + + QT3DSU32 GetNumMipmaps() override { return m_MaxMipLevel; } + + /** + * @brief Query if texture needs coordinate swizzle + * + * @return texture swizzle mode + */ + NVRenderTextureSwizzleMode::Enum GetTextureSwizzleMode() override + { + // if our backend supports hardware texture swizzle then there is no need for a shader + // swizzle + return (m_Backend->GetRenderBackendCap( + NVRenderBackend::NVRenderBackendCaps::TexSwizzle)) + ? NVRenderTextureSwizzleMode::NoSwizzle + : m_Backend->GetTextureSwizzleMode(m_Format); + } + + // this will be obsolete + const void *GetImplementationHandle() const override + { + return reinterpret_cast<void *>(m_TextureHandle); + } + + static NVRenderTexture2D *Create(NVRenderContextImpl &context); + }; +} +} + +#endif |