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/*==LICENSE==*
CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011 Cyan Worlds, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Additional permissions under GNU GPL version 3 section 7
If you modify this Program, or any covered work, by linking or
combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK,
NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent
JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK
(or a modified version of those libraries),
containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA,
PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG
JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the
licensors of this Program grant you additional
permission to convey the resulting work. Corresponding Source for a
non-source form of such a combination shall include the source code for
the parts of OpenSSL and IJG JPEG Library used as well as that of the covered
work.
You can contact Cyan Worlds, Inc. by email legal@cyan.com
or by snail mail at:
Cyan Worlds, Inc.
14617 N Newport Hwy
Mead, WA 99021
*==LICENSE==*/
///////////////////////////////////////////////////////////////////////////////
// //
// plFont Class Header //
// Seems like we've come full circle again. This is our generic Plasma //
// bitmap font class/format. Quick list of things it supports, or needs to: //
// - Antialiasing, either in the font def or at rendertime //
// - Doublebyte character sets //
// - Platform independence, of course //
// - Render to reasonably arbitrary mipmap //
// - Character-level kerning, both before and after, as well as //
// negative kerning (for ligatures) //
// //
// Cyan, Inc. //
// //
//// Version History //////////////////////////////////////////////////////////
// //
// 5.4.2003 mcn - Created. //
// //
///////////////////////////////////////////////////////////////////////////////
#ifndef _plFont_h
#define _plFont_h
#include "HeadSpin.h"
#include "hsColorRGBA.h"
#include "hsTemplates.h"
#include "pcSmallRect.h"
#include "pnKeyedObject/hsKeyedObject.h"
#include <wchar.h>
class plBDFConvertCallback
{
public:
virtual void NumChars( uint16_t chars ) {}
virtual void CharDone( void ) {}
};
//// Class Definition /////////////////////////////////////////////////////////
class plMipmap;
class plBDFHeaderParser;
class plBDFPropertiesParser;
class plBDFCharsParser;
class plFont : public hsKeyedObject
{
public:
enum RenderFlags
{
kRenderItalic = 0x00000001,
kRenderBold = 0x00000002,
kRenderScaleAA = 0x00000004,
kRenderClip = 0x00000008,
kRenderWrap = 0x00000010,
kRenderJustXLeft = 0,
kRenderJustXRight = 0x00000020, // X right justify
kRenderJustXCenter = 0x00000040, // X center justify (left default)
kRenderJustXForceLeft=0x00000080, // Force left (no kerning)
kRenderJustXMask = 0x000000e0,
kRenderJustYBaseline = 0,
kRenderJustYTop = 0x00000100, // Y top justify
kRenderJustYCenter = 0x00000200, // Y center justify
kRenderJustYBottom = 0x00000400, // Y bottom justify (baseline is default)
kRenderJustYMask = 0x00000700,
kRenderIntoAlpha = 0x00000800, // This option causes grayscale (AA) fonts to
// render into the alpha channel instead of the color
// channel, so that the resulting pixels touched always
// have the renderColor and the alpha = to the font pixel.
// By default, we use the font pixel as an alpha blending
// value between the renderColor and the destColor and
// leave the alpha as-is
// This flag has no effect on monochrome fonts
kRenderAlphaPremultiplied = 0x00001000, // Destination has color values premultiplied by alpha
kRenderShadow = 0x00002000, // Render text shadows
};
enum Flags
{
kFlagBold = 0x00000001,
kFlagItalic = 0x00000002
};
protected:
friend class plBDFHeaderParser;
friend class plBDFPropertiesParser;
friend class plBDFCharsParser;
// Font face and size. This is just used for IDing purposes, not for rendering
plString fFace;
uint8_t fSize;
uint32_t fFlags;
// Size of the whole font bitmap. Fonts are stored vertically, one
// character at a time, so fWidth is really the max width of any one
// character bitmap, with of course the proper padding
uint32_t fWidth, fHeight;
// Bpp of our font bitmap. We're grayscale, remember...
uint8_t fBPP;
// Bitmap data!
uint8_t *fBMapData;
// Our character class, for per-char info
class plCharacter
{
public:
uint32_t fBitmapOff; // Offset in the font bitmap in bytes
// to the first uint8_t of the character
uint32_t fHeight; // Height in pixels of this character
int32_t fBaseline; // Number of pixels down from the top of
// the char bitmap to the baseline.
float fLeftKern; // Kerning values for this char, in pixels
float fRightKern; // Note that the right kern is relative to
// the right side of the bitmap area, which
// is the width of the font bitmap, so
// basically each character is the same width,
// just kerned back!
// (left kerning currently unsupported, just
// in here in case we need to eventually)
plCharacter& operator=(const int zero)
{
fBitmapOff=0;
fHeight = 0;
fBaseline = 0;
fLeftKern = 0;
fRightKern = 0;
return *this;
}
plCharacter();
void Read( hsStream *s );
void Write( hsStream *s );
};
// First character we encode--everything below this we don't render
uint16_t fFirstChar;
// Our characters, stored in an hsTArray for easy construction
hsTArray<plCharacter> fCharacters;
// Max character bitmap height and max ascent for any character
uint32_t fMaxCharHeight;
int32_t fFontAscent, fFontDescent;
typedef void (plFont::*CharRenderFunc)( const plCharacter &c );
// Render info
class plRenderInfo
{
public:
int16_t fFirstLineIndent;
int16_t fX, fY, fNumCols, fFarthestX, fLastX, fLastY;
int16_t fMaxWidth, fMaxHeight, fMaxAscent, fMaxDescent;
int16_t fLineSpacing;
uint8_t *fDestPtr;
uint32_t fDestStride;
uint8_t fDestBPP;
uint32_t fColor;
plMipmap *fMipmap;
uint32_t fFlags;
pcSmallRect fClipRect;
float fFloatWidth;
const wchar_t *fVolatileStringPtr; // Just so we know where we clipped
CharRenderFunc fRenderFunc;
};
plRenderInfo fRenderInfo;
void IClear( bool onConstruct = false );
void ICalcFontAscent( void );
uint8_t *IGetFreeCharData( uint32_t &newOffset );
void IRenderLoop( const wchar_t *string, int32_t maxCount );
12 years ago
void IRenderString( plMipmap *mip, uint16_t x, uint16_t y, const wchar_t *string, bool justCalc );
// Various render functions
void IRenderChar1To32( const plCharacter &c );
void IRenderChar1To32AA( const plCharacter &c );
void IRenderChar8To32( const plCharacter &c );
void IRenderChar8To32Alpha( const plCharacter &c );
void IRenderChar8To32FullAlpha( const plCharacter &c );
void IRenderChar8To32AlphaPremultiplied( const plCharacter &c );
void IRenderChar8To32AlphaPremShadow( const plCharacter &c );
void IRenderCharNull( const plCharacter &c );
uint32_t IGetCharPixel( const plCharacter &c, int32_t x, int32_t y )
{
// only for 8-bit characters
return (x < 0 || y < 0 || (uint32_t)x >= fWidth || (uint32_t)y >= c.fHeight) ? 0 : *(fBMapData + c.fBitmapOff + y*fWidth + x);
}
public:
plFont();
virtual ~plFont();
CLASSNAME_REGISTER( plFont );
GETINTERFACE_ANY( plFont, hsKeyedObject );
virtual void Read( hsStream *s, hsResMgr *mgr );
virtual void Write( hsStream *s, hsResMgr *mgr );
plString GetFace( void ) const { return fFace; }
uint8_t GetSize( void ) const { return fSize; }
uint16_t GetFirstChar( void ) const { return fFirstChar; }
uint16_t GetNumChars( void ) const { return fCharacters.GetCount(); }
uint32_t GetFlags( void ) const { return fFlags; }
float GetDescent( void ) const { return (float)fFontDescent; }
float GetAscent( void ) const { return (float)fFontAscent; }
uint32_t GetBitmapWidth( void ) const { return fWidth; }
uint32_t GetBitmapHeight( void ) const { return fHeight; }
uint8_t GetBitmapBPP( void ) const { return fBPP; }
void SetFace( const plString &face ) { fFace = face; }
void SetSize( uint8_t size ) { fSize = size; }
void SetFlags( uint32_t flags ) { fFlags = flags; }
12 years ago
void SetFlag( uint32_t flag, bool on ) { if( on ) fFlags |= flag; else fFlags &= ~flag; }
bool IsFlagSet( uint32_t flag ) { if( fFlags & flag ) return true; return false; }
void SetRenderColor( uint32_t color );
12 years ago
void SetRenderFlag( uint32_t flag, bool on ) { if( on ) fRenderInfo.fFlags |= flag; else fRenderInfo.fFlags &= ~flag; }
bool IsRenderFlagSet( uint32_t flag ) { return ( fRenderInfo.fFlags & flag ) ? true : false; }
void SetRenderClipRect( int16_t x, int16_t y, int16_t width, int16_t height );
void SetRenderXJustify( uint32_t j ) { fRenderInfo.fFlags &= ~kRenderJustXMask; fRenderInfo.fFlags |= j; }
void SetRenderYJustify( uint32_t j ) { fRenderInfo.fFlags &= ~kRenderJustYMask; fRenderInfo.fFlags |= j; }
void SetRenderFirstLineIndent( int16_t indent ) { fRenderInfo.fFirstLineIndent = indent; }
void SetRenderLineSpacing( int16_t spacing ) { fRenderInfo.fLineSpacing = spacing; }
// Sets flags too
void SetRenderClipping( int16_t x, int16_t y, int16_t width, int16_t height );
void SetRenderWrapping( int16_t x, int16_t y, int16_t width, int16_t height );
void RenderString( plMipmap *mip, uint16_t x, uint16_t y, const plString &string, uint16_t *lastX = nil, uint16_t *lastY = nil );
void RenderString( plMipmap *mip, uint16_t x, uint16_t y, const wchar_t *string, uint16_t *lastX = nil, uint16_t *lastY = nil );
uint16_t CalcStringWidth( const plString &string );
uint16_t CalcStringWidth( const wchar_t *string );
void CalcStringExtents( const plString &string, uint16_t &width, uint16_t &height, uint16_t &ascent, uint32_t &firstClippedChar, uint16_t &lastX, uint16_t &lastY );
void CalcStringExtents( const wchar_t *string, uint16_t &width, uint16_t &height, uint16_t &ascent, uint32_t &firstClippedChar, uint16_t &lastX, uint16_t &lastY );
bool LoadFromFNT( const plFileName &path );
12 years ago
bool LoadFromFNTStream( hsStream *stream );
bool LoadFromBDF( const plFileName &path, plBDFConvertCallback *callback );
12 years ago
bool LoadFromBDFStream( hsStream *stream, plBDFConvertCallback *callback );
bool LoadFromP2FFile( const plFileName &path );
12 years ago
bool ReadRaw( hsStream *stream );
bool WriteRaw( hsStream *stream );
};
#endif // _plFont_h