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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_OPENGLGDIIMPL_HXX
#define INCLUDED_VCL_OPENGLGDIIMPL_HXX
#include "salgeom.hxx"
#include "salgdiimpl.hxx"
#include <vcl/dllapi.h>
#include "opengl/framebuffer.hxx"
#include "opengl/program.hxx"
#include "opengl/texture.hxx"
#include "regionband.hxx"
#include <tools/poly.hxx>
#include <vcl/opengl/OpenGLContext.hxx>
class SalFrame;
class SalVirtualDevice;
namespace basegfx
{
class B2DTrapezoid;
};
class VCL_PLUGIN_PUBLIC OpenGLSalGraphicsImpl : public SalGraphicsImpl
{
protected:
OpenGLContext* mpContext;
SalGraphics& mrParent;
/// Pointer to the SalFrame or SalVirtualDevice
SalGeometryProvider* mpProvider;
OpenGLFramebuffer* mpFramebuffer;
OpenGLProgram* mpProgram;
// clipping
vcl::Region maClipRegion;
bool mbUseScissor;
bool mbUseStencil;
bool mbOffscreen;
OpenGLTexture maOffscreenTex;
SalColor mnLineColor;
SalColor mnFillColor;
#ifdef DBG_UTIL
bool mProgramIsSolidColor;
#endif
SalColor mProgramSolidColor;
double mProgramSolidTransparency;
void ImplInitClipRegion();
void ImplSetClipBit( const vcl::Region& rClip, GLuint nMask );
void ImplDrawLineAA( double nX1, double nY1, double nX2, double nY2, bool edge = false );
bool CheckOffscreenTexture();
public:
bool UseProgram( const OUString& rVertexShader, const OUString& rFragmentShader );
bool UseSolid( SalColor nColor, sal_uInt8 nTransparency );
bool UseSolid( SalColor nColor, double fTransparency );
bool UseSolid( SalColor nColor );
bool UseSolidAA( SalColor nColor, double fTransparency );
bool UseSolidAA( SalColor nColor );
bool UseInvert();
void DrawPoint( long nX, long nY );
void DrawLine( double nX1, double nY1, double nX2, double nY2 );
void DrawLines( sal_uInt32 nPoints, const SalPoint* pPtAry, bool bClose );
void DrawLineAA( double nX1, double nY1, double nX2, double nY2 );
void DrawLinesAA( sal_uInt32 nPoints, const SalPoint* pPtAry, bool bClose );
void DrawEdgeAA( double nX1, double nY1, double nX2, double nY2 );
void DrawConvexPolygon( sal_uInt32 nPoints, const SalPoint* pPtAry, bool blockAA = false );
void DrawConvexPolygon( const Polygon& rPolygon, bool blockAA = false );
void DrawTrapezoid( const basegfx::B2DTrapezoid& trapezoid, bool blockAA = false );
void DrawRect( long nX, long nY, long nWidth, long nHeight );
void DrawRect( const Rectangle& rRect );
void DrawPolygon( sal_uInt32 nPoints, const SalPoint* pPtAry );
void DrawPolyPolygon( const basegfx::B2DPolyPolygon& rPolyPolygon, bool blockAA = false );
void DrawRegionBand( const RegionBand& rRegion );
void DrawTextureRect( OpenGLTexture& rTexture, const SalTwoRect& rPosAry, bool bInverted = false );
void DrawTexture( OpenGLTexture& rTexture, const SalTwoRect& rPosAry, bool bInverted = false );
void DrawTransformedTexture( OpenGLTexture& rTexture, OpenGLTexture& rMask, const basegfx::B2DPoint& rNull, const basegfx::B2DPoint& rX, const basegfx::B2DPoint& rY );
void DrawAlphaTexture( OpenGLTexture& rTexture, const SalTwoRect& rPosAry, bool bInverted = false, bool pPremultiplied = false );
void DrawTextureDiff( OpenGLTexture& rTexture, OpenGLTexture& rMask, const SalTwoRect& rPosAry, bool bInverted = false );
void DrawTextureWithMask( OpenGLTexture& rTexture, OpenGLTexture& rMask, const SalTwoRect& rPosAry );
void DrawBlendedTexture( OpenGLTexture& rTexture, OpenGLTexture& rMask, OpenGLTexture& rAlpha, const SalTwoRect& rPosAry );
void DrawMask( OpenGLTexture& rTexture, SalColor nMaskColor, const SalTwoRect& rPosAry );
void DrawLinearGradient( const Gradient& rGradient, const Rectangle& rRect );
void DrawAxialGradient( const Gradient& rGradient, const Rectangle& rRect );
void DrawRadialGradient( const Gradient& rGradient, const Rectangle& rRect );
public:
// get the width of the device
GLfloat GetWidth() const { return mpProvider ? mpProvider->GetWidth() : 1; }
// get the height of the device
GLfloat GetHeight() const { return mpProvider ? mpProvider->GetHeight() : 1; }
// check whether this instance is used for offscreen rendering
bool IsOffscreen() const { return mpProvider ? mpProvider->IsOffScreen() : true; }
// operations to do before painting
virtual void PreDraw();
// operations to do after painting
virtual void PostDraw();
protected:
bool AcquireContext();
bool ReleaseContext();
// retrieve the default context for offscreen rendering
virtual OpenGLContext* GetDefaultContext();
// create a new context for window rendering
virtual OpenGLContext* CreateWinContext() = 0;
// check whether the given context can be used by this instance
virtual bool UseContext( OpenGLContext* pContext ) = 0;
public:
OpenGLSalGraphicsImpl(SalGraphics& pParent, SalGeometryProvider *pProvider);
virtual ~OpenGLSalGraphicsImpl ();
OpenGLContext* GetOpenGLContext();
virtual void Init() SAL_OVERRIDE;
virtual void freeResources() SAL_OVERRIDE;
virtual const vcl::Region& getClipRegion() const;
virtual bool setClipRegion( const vcl::Region& ) SAL_OVERRIDE;
//
// get the depth of the device
virtual sal_uInt16 GetBitCount() const SAL_OVERRIDE;
// get the width of the device
virtual long GetGraphicsWidth() const SAL_OVERRIDE;
// set the clip region to empty
virtual void ResetClipRegion() SAL_OVERRIDE;
// set the line color to transparent (= don't draw lines)
virtual void SetLineColor() SAL_OVERRIDE;
// set the line color to a specific color
virtual void SetLineColor( SalColor nSalColor ) SAL_OVERRIDE;
// set the fill color to transparent (= don't fill)
virtual void SetFillColor() SAL_OVERRIDE;
// set the fill color to a specific color, shapes will be
// filled accordingly
virtual void SetFillColor( SalColor nSalColor ) SAL_OVERRIDE;
// enable/disable XOR drawing
virtual void SetXORMode( bool bSet, bool bInvertOnly ) SAL_OVERRIDE;
// set line color for raster operations
virtual void SetROPLineColor( SalROPColor nROPColor ) SAL_OVERRIDE;
// set fill color for raster operations
virtual void SetROPFillColor( SalROPColor nROPColor ) SAL_OVERRIDE;
// draw --> LineColor and FillColor and RasterOp and ClipRegion
virtual void drawPixel( long nX, long nY ) SAL_OVERRIDE;
virtual void drawPixel( long nX, long nY, SalColor nSalColor ) SAL_OVERRIDE;
virtual void drawLine( long nX1, long nY1, long nX2, long nY2 ) SAL_OVERRIDE;
virtual void drawRect( long nX, long nY, long nWidth, long nHeight ) SAL_OVERRIDE;
virtual void drawPolyLine( sal_uInt32 nPoints, const SalPoint* pPtAry ) SAL_OVERRIDE;
virtual void drawPolygon( sal_uInt32 nPoints, const SalPoint* pPtAry ) SAL_OVERRIDE;
virtual void drawPolyPolygon( sal_uInt32 nPoly, const sal_uInt32* pPoints, PCONSTSALPOINT* pPtAry ) SAL_OVERRIDE;
virtual bool drawPolyPolygon( const ::basegfx::B2DPolyPolygon&, double fTransparency ) SAL_OVERRIDE;
virtual bool drawPolyLine(
const ::basegfx::B2DPolygon&,
double fTransparency,
const ::basegfx::B2DVector& rLineWidths,
basegfx::B2DLineJoin,
com::sun::star::drawing::LineCap) SAL_OVERRIDE;
virtual bool drawPolyLineBezier(
sal_uInt32 nPoints,
const SalPoint* pPtAry,
const sal_uInt8* pFlgAry ) SAL_OVERRIDE;
virtual bool drawPolygonBezier(
sal_uInt32 nPoints,
const SalPoint* pPtAry,
const sal_uInt8* pFlgAry ) SAL_OVERRIDE;
virtual bool drawPolyPolygonBezier(
sal_uInt32 nPoly,
const sal_uInt32* pPoints,
const SalPoint* const* pPtAry,
const sal_uInt8* const* pFlgAry ) SAL_OVERRIDE;
// CopyArea --> No RasterOp, but ClipRegion
virtual void copyArea(
long nDestX, long nDestY,
long nSrcX, long nSrcY,
long nSrcWidth, long nSrcHeight,
sal_uInt16 nFlags ) SAL_OVERRIDE;
// CopyBits and DrawBitmap --> RasterOp and ClipRegion
// CopyBits() --> pSrcGraphics == NULL, then CopyBits on same Graphics
void DoCopyBits(const SalTwoRect& rPosAry, OpenGLSalGraphicsImpl &rSrcImpl);
virtual bool blendBitmap(
const SalTwoRect&,
const SalBitmap& rBitmap ) SAL_OVERRIDE;
virtual bool blendAlphaBitmap(
const SalTwoRect&,
const SalBitmap& rSrcBitmap,
const SalBitmap& rMaskBitmap,
const SalBitmap& rAlphaBitmap ) SAL_OVERRIDE;
virtual void drawBitmap( const SalTwoRect& rPosAry, const SalBitmap& rSalBitmap ) SAL_OVERRIDE;
virtual void drawBitmap(
const SalTwoRect& rPosAry,
const SalBitmap& rSalBitmap,
SalColor nTransparentColor ) SAL_OVERRIDE;
virtual void drawBitmap(
const SalTwoRect& rPosAry,
const SalBitmap& rSalBitmap,
const SalBitmap& rMaskBitmap ) SAL_OVERRIDE;
virtual void drawMask(
const SalTwoRect& rPosAry,
const SalBitmap& rSalBitmap,
SalColor nMaskColor ) SAL_OVERRIDE;
virtual SalBitmap* getBitmap( long nX, long nY, long nWidth, long nHeight ) SAL_OVERRIDE;
virtual SalColor getPixel( long nX, long nY ) SAL_OVERRIDE;
// invert --> ClipRegion (only Windows or VirDevs)
virtual void invert(
long nX, long nY,
long nWidth, long nHeight,
SalInvert nFlags) SAL_OVERRIDE;
virtual void invert( sal_uInt32 nPoints, const SalPoint* pPtAry, SalInvert nFlags ) SAL_OVERRIDE;
virtual bool drawEPS(
long nX, long nY,
long nWidth, long nHeight,
void* pPtr,
sal_uLong nSize ) SAL_OVERRIDE;
/** Render bitmap with alpha channel
@param rSourceBitmap
Source bitmap to blit
@param rAlphaBitmap
Alpha channel to use for blitting
@return true, if the operation succeeded, and false
otherwise. In this case, clients should try to emulate alpha
compositing themselves
*/
virtual bool drawAlphaBitmap(
const SalTwoRect&,
const SalBitmap& rSourceBitmap,
const SalBitmap& rAlphaBitmap ) SAL_OVERRIDE;
/** Render 32-bits bitmap with alpha channel */
virtual bool drawAlphaBitmap(
const SalTwoRect&,
const SalBitmap& rBitmap ) SAL_OVERRIDE;
/** draw transformed bitmap (maybe with alpha) where Null, X, Y define the coordinate system */
virtual bool drawTransformedBitmap(
const basegfx::B2DPoint& rNull,
const basegfx::B2DPoint& rX,
const basegfx::B2DPoint& rY,
const SalBitmap& rSourceBitmap,
const SalBitmap* pAlphaBitmap) SAL_OVERRIDE;
/** Render solid rectangle with given transparency
@param nTransparency
Transparency value (0-255) to use. 0 blits and opaque, 255 a
fully transparent rectangle
*/
virtual bool drawAlphaRect(
long nX, long nY,
long nWidth, long nHeight,
sal_uInt8 nTransparency ) SAL_OVERRIDE;
virtual bool drawGradient(const tools::PolyPolygon& rPolygon, const Gradient& rGradient) SAL_OVERRIDE;
virtual void beginPaint() SAL_OVERRIDE;
virtual void endPaint() SAL_OVERRIDE;
private:
};
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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