1 files changed, 113 insertions, 0 deletions
diff --git a/vcl/inc/opengl/salbmp.hxx b/vcl/inc/opengl/salbmp.hxx
new file mode 100644
index 000000000..a01eca89f
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+++ b/vcl/inc/opengl/salbmp.hxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifndef INCLUDED_VCL_INC_OPENGL_SALBMP_H
+#define INCLUDED_VCL_INC_OPENGL_SALBMP_H
+
+#include <vcl/opengl/OpenGLContext.hxx>
+
+#include <opengl/texture.hxx>
+
+#include <salbmp.hxx>
+
+#include <memory>
+
+struct  BitmapBuffer;
+class   BitmapPalette;
+namespace vcl
+{
+    class Kernel;
+}
+
+class VCL_PLUGIN_PUBLIC OpenGLSalBitmap final : public SalBitmap
+{
+private:
+    OpenGLTexture                       maTexture;
+    bool                                mbDirtyTexture;
+    BitmapPalette                       maPalette;
+    std::shared_ptr<sal_uInt8>          mpUserBuffer;
+    sal_uInt16                          mnBits;
+    sal_uInt32                          mnBytesPerRow;
+    int                                 mnWidth;
+    int                                 mnHeight;
+
+    virtual void updateChecksum() const override;
+
+    bool calcChecksumGL(OpenGLTexture& rInputTexture, BitmapChecksum& rChecksum) const;
+
+public:
+    OpenGLSalBitmap();
+    virtual ~OpenGLSalBitmap() override;
+
+public:
+
+    // SalBitmap methods
+    bool            Create( const Size& rSize, sal_uInt16 nBitCount, const BitmapPalette& rPal ) override;
+    bool            Create( const SalBitmap& rSalBmp ) override;
+    bool            Create( const SalBitmap& rSalBmp, SalGraphics* pGraphics ) override;
+    bool            Create( const SalBitmap& rSalBmp, sal_uInt16 nNewBitCount ) override;
+    virtual bool    Create( const css::uno::Reference< css::rendering::XBitmapCanvas >& rBitmapCanvas,
+                            Size& rSize,
+                            bool bMask = false ) override;
+
+    void            Destroy() final override;
+
+    Size            GetSize() const override;
+    sal_uInt16      GetBitCount() const override;
+
+    BitmapBuffer*   AcquireBuffer( BitmapAccessMode nMode ) override;
+    void            ReleaseBuffer( BitmapBuffer* pBuffer, BitmapAccessMode nMode ) override;
+
+    bool            GetSystemData( BitmapSystemData& rData ) override;
+
+    bool            ScalingSupported() const override;
+    bool            Scale( const double& rScaleX, const double& rScaleY, BmpScaleFlag nScaleFlag ) override;
+    bool            Replace( const Color& rSearchColor, const Color& rReplaceColor, sal_uInt8 nTol ) override;
+    bool            ConvertToGreyscale() override;
+    bool            InterpretAs8Bit() override;
+
+public:
+
+    void            Create( const OpenGLTexture& rTex, long nX, long nY, long nWidth, long nHeight );
+    OpenGLTexture&  GetTexture() const;
+    const BitmapPalette& GetBitmapPalette() const { return maPalette; }
+
+private:
+
+    GLuint          CreateTexture();
+    bool            AllocateUserData();
+    void            DeallocateUserData();
+    bool            ReadTexture();
+
+private:
+
+    bool ImplScaleFilter( const rtl::Reference< OpenGLContext > &xContext, const double& rScaleX, const double& rScaleY, GLenum nFilter );
+    static void ImplCreateKernel( const double& fScale, const vcl::Kernel& rKernel, GLfloat*& pWeights, sal_uInt32& aKernelSize );
+    bool ImplScaleConvolution(const rtl::Reference< OpenGLContext > &xContext, const double& rScaleX, const double& rScaleY, const vcl::Kernel& rKernel);
+    bool ImplScaleArea( const rtl::Reference< OpenGLContext > &xContext,
+                        double rScaleX, double rScaleY );
+
+public:
+
+    void ImplScale( const double& rScaleX, const double& rScaleY, BmpScaleFlag nScaleFlag );
+};
+
+#endif // INCLUDED_VCL_INC_OPENGL_SALBMP_H
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */