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Added some utility classes which will make finishing work on DisplayDriver much easier and cleaner

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8854 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
DarkWyrm 2004-09-05 00:48:23 +00:00
parent 3713534518
commit e09bff9bf3
4 changed files with 302 additions and 1 deletions
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60
headers/private/servers/app/GraphicsBuffer.h Normal file
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//------------------------------------------------------------------------------
// Copyright (c) 2001-2002, OpenBeOS
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
// File Name: GraphicsBuffer.h
// Author: DarkWyrm <bpmagic@columbus.rr.com>
//
// Description: Convenience class for working with graphics buffers
// Based on concepts from the Anti-Grain Geometry vector gfx library
//------------------------------------------------------------------------------
#ifndef GFX_BUFFER_H
#define GFX_BUFFER_H
#include <SupportDefs.h>
class GraphicsBuffer
{
public:
GraphicsBuffer(uint8 *buffer, uint32 width, uint32 height, uint32 rowbytes);
~GraphicsBuffer();
void SetTo(uint8 *buffer, uint32 width, uint32 height, uint32 rowbytes);
void Unset(void);
uint8 *Bits(void) const { return fBuffer; }
uint8 *RowAt(uint32 row) { return fRowList[row]; }
uint32 Width(void) const { return fWidth; }
uint32 Height(void) const { return fHeight; }
uint32 BytesPerRow(void) const { return fBytesPerRow; }
private:
uint32 fWidth;
uint32 fHeight;
uint8 *fBuffer;
uint8 **fRowList;
uint32 fBytesPerRow;
uint32 fMaxHeight;
};
#endif

116
headers/private/servers/app/IPoint.h Normal file
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//------------------------------------------------------------------------------
// Copyright (c) 2001-2002, OpenBeOS
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
// File Name: IPoint.h
// Author: DarkWyrm <bpmagic@columbus.rr.com>
// Based on BPoint code by Frans Van Nispen
// Description: Integer BPoint class
//------------------------------------------------------------------------------
#ifndef _IPOINT_H
#define _IPOINT_H
// System Includes -------------------------------------------------------------
#include <BeBuild.h>
#include <SupportDefs.h>
#include <Point.h>
class BRect;
class IPoint
{
public:
int32 x;
int32 y;
IPoint(void);
IPoint(int32 X, int32 Y);
IPoint(const IPoint &p);
IPoint(const BPoint &p);
IPoint &operator=(const IPoint &p);
IPoint &operator=(const BPoint &p);
void Set(int32 X, int32 Y);
void ConstrainTo(BRect r);
void PrintToStream() const;
IPoint operator+(const IPoint &p) const;
IPoint operator+(const BPoint &p) const;
IPoint operator-(const IPoint &p) const;
IPoint operator-(const BPoint &p) const;
IPoint &operator+=(const IPoint &p);
IPoint &operator+=(const BPoint &p);
IPoint &operator-=(const IPoint &p);
IPoint &operator-=(const BPoint &p);
bool operator!=(const IPoint &p) const;
bool operator!=(const BPoint &p) const;
bool operator==(const IPoint &p) const;
bool operator==(const BPoint &p) const;
};
//------------------------------------------------------------------------------
inline IPoint::IPoint(void)
{
x = y = 0;
}
//------------------------------------------------------------------------------
inline IPoint::IPoint(int32 X, int32 Y)
{
x = X;
y = Y;
}
//------------------------------------------------------------------------------
inline IPoint::IPoint(const IPoint& pt)
{
x = pt.x;
y = pt.y;
}
//------------------------------------------------------------------------------
inline IPoint::IPoint(const BPoint& pt)
{
x = (int32)pt.x;
y = (int32)pt.y;
}
//------------------------------------------------------------------------------
inline IPoint &IPoint::operator=(const IPoint& from)
{
x = from.x;
y = from.y;
return *this;
}
//------------------------------------------------------------------------------
inline IPoint &IPoint::operator=(const BPoint& from)
{
x = (int32)from.x;
y = (int32)from.y;
return *this;
}
//------------------------------------------------------------------------------
inline void IPoint::Set(int32 X, int32 Y)
{
x = X;
y = Y;
}
//------------------------------------------------------------------------------
#endif

125
headers/private/servers/app/PixelRenderer.h Normal file
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//------------------------------------------------------------------------------
// Copyright (c) 2001-2002, OpenBeOS
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
// File Name: PixelRenderer.cpp
// Author: DarkWyrm <bpmagic@columbus.rr.com>
//
// Description: Base class for pixel plotting renderers
// Based on concepts from the Anti-Grain Geometry vector gfx library
//------------------------------------------------------------------------------
#ifndef PIXEL_RENDERER
#define PIXEL_RENDERER
#include "GraphicsBuffer.h"
#include "GraphicsDefs.h"
#include "RGBColor.h"
class IPoint;
class PixelRenderer
{
public:
PixelRenderer(GraphicsBuffer &buffer);
virtual ~PixelRenderer(void);
virtual color_space ColorSpace(void) { return B_NO_COLOR_SPACE; }
virtual RGBColor GetPixel(const IPoint &pt);
virtual void PutPixel(const IPoint &pt, RGBColor &c);
virtual void PutHLine(const IPoint &pt, const uint32 length, RGBColor &c);
virtual void PutVLine(const IPoint &pt, const uint32 length, RGBColor &c);
virtual void SetBuffer(GraphicsBuffer &buffer) { fBuffer=&buffer; }
GraphicsBuffer *GetBuffer(void) const { return fBuffer; }
private:
GraphicsBuffer *fBuffer;
};
class PixelRendererRGBA32 : public PixelRenderer
{
public:
PixelRendererRGBA32(GraphicsBuffer &buffer);
virtual ~PixelRendererRGBA32(void);
virtual color_space ColorSpace(void) { return B_RGBA32; }
virtual RGBColor GetPixel(const IPoint &pt);
virtual void PutPixel(const IPoint &pt, RGBColor &c);
virtual void PutHLine(const IPoint &pt, const uint32 length, RGBColor &c);
virtual void PutVLine(const IPoint &pt, const uint32 length, RGBColor &c);
};
class PixelRendererRGB16 : public PixelRenderer
{
public:
PixelRendererRGB16(GraphicsBuffer &buffer);
virtual ~PixelRendererRGB16(void);
virtual color_space ColorSpace(void) { return B_RGB16; }
virtual RGBColor GetPixel(const IPoint &pt);
virtual void PutPixel(const IPoint &pt, RGBColor &c);
virtual void PutHLine(const IPoint &pt, const uint32 length, RGBColor &c);
virtual void PutVLine(const IPoint &pt, const uint32 length, RGBColor &c);
};
class PixelRendererRGBA15 : public PixelRenderer
{
public:
PixelRendererRGBA15(GraphicsBuffer &buffer);
virtual ~PixelRendererRGBA15(void);
virtual color_space ColorSpace(void) { return B_RGBA15; }
virtual RGBColor GetPixel(const IPoint &pt);
virtual void PutPixel(const IPoint &pt, RGBColor &c);
virtual void PutHLine(const IPoint &pt, const uint32 length, RGBColor &c);
virtual void PutVLine(const IPoint &pt, const uint32 length, RGBColor &c);
};
class PixelRendererCMAP8 : public PixelRenderer
{
public:
PixelRendererCMAP8(GraphicsBuffer &buffer);
virtual ~PixelRendererCMAP8(void);
virtual color_space ColorSpace(void) { return B_CMAP8; }
virtual RGBColor GetPixel(const IPoint &pt);
virtual void PutPixel(const IPoint &pt, RGBColor &c);
virtual void PutHLine(const IPoint &pt, const uint32 length, RGBColor &c);
virtual void PutVLine(const IPoint &pt, const uint32 length, RGBColor &c);
};
// TODO: These inlines probably should go in ColorUtils
inline uint16 MakeRGB16Color(uint8 r, uint8 g, uint8 b)
{
return (uint16)(((r & 0xF8) << 8) | ((g & 0xFC) << 3) | (b >> 3));
}
// TODO: Doublecheck to make sure the shifting is correct in MakeRGBA15Color
inline uint16 MakeRGBA15Color(uint8 r, uint8 g, uint8 b, bool visible=true)
{
return (uint16)(((r & 0xF8) << 7) | ((g & 0xF8) << 2) | (b >> 3));
}
#endif

2
headers/private/servers/app/SystemPalette.h
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#include <GraphicsDefs.h>
void GenerateSystemPalette(rgb_color *palette);
extern rgb_color system_palette[];
extern const rgb_color system_palette[];
#endif