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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/>.
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==*/
///////////////////////////////////////////////////////////////////////////////
// //
// plTextGenerator Class Functions //
// Cyan, Inc. //
// //
//// Version History //////////////////////////////////////////////////////////
// //
// 12.13.2001 mcn - Created. //
// //
///////////////////////////////////////////////////////////////////////////////
#include "hsWindows.h"
#include "hsTypes.h"
#include "hsMatrix44.h"
#include "pnKeyedObject/hsKeyedObject.h"
#include "plTextGenerator.h"
#include "plGImage/plMipmap.h"
#include "plPipeline/hsGDeviceRef.h"
#include "pnMessage/plRefMsg.h"
#include "plgDispatch.h"
#include "hsResMgr.h"
// Because tempKeys haven't been fixed yet (mf says to blame Eric Ellis), reffing
// objects when we have a tempKey (or they have a tempKey) just don't work. In
// fact, it will do nasty things like crashing on shutdown. Until then, we simply
// won't do the refs. Note that this is BAD, but given the only time we currently
// use these objects are very limited, controlled cases that *should* be okay
// for now, we should be reasonably safe. For now.
//#define MCN_DO_REFS
//// Constructor & Destructor /////////////////////////////////////////////////
plTextGenerator::plTextGenerator()
{
fHost = nil;
}
plTextGenerator::plTextGenerator( plMipmap *host, UInt16 width, UInt16 height )
{
fHost = nil;
Attach( host, width, height );
}
plTextGenerator::~plTextGenerator()
{
// This also won't work until tempKeys work, since the mipmap will be gone by
// this time, in which case, calling Detach() crashes
#ifdef MCN_DO_REFS
Detach();
#endif
}
//// Attach ///////////////////////////////////////////////////////////////////
// Grab onto a plMipmap, suck the texture out of it and replace it with our
// own.
void plTextGenerator::Attach( plMipmap *host, UInt16 width, UInt16 height )
{
UInt16 textWidth, textHeight;
hsAssert( fHost == nil, "Attempting to attach an already attached plTextGenerator" );
fHost = host;
/// Suck the old texture data out
fHost->Reset();
/// Make some new
// Note that we need POW-2 textures, so we go for the next one up that will
// fit what we need
for( textWidth = 1; textWidth < width; textWidth <<= 1 );
for( textHeight = 1; textHeight < height; textHeight <<= 1 );
fWidth = width;
fHeight = height;
fHost->fImage = (void *)IAllocateOSSurface( textWidth, textHeight );
fHost->SetConfig( plMipmap::kARGB32Config );
fHost->fWidth = textWidth;
fHost->fHeight = textHeight;
fHost->fPixelSize = 32;
fHost->fRowBytes = textWidth * 4;
fHost->fNumLevels = 1;
fHost->fFlags |= plMipmap::kUserOwnsBitmap | plMipmap::kDontThrowAwayImage;
fHost->fCompressionType = plMipmap::kUncompressed;
fHost->fUncompressedInfo.fType = plMipmap::UncompressedInfo::kRGB8888;
fHost->IBuildLevelSizes();
fHost->fTotalSize = fHost->GetLevelSize( 0 );
// Destroy the old texture ref, since it's probably completely nutsoid at this point.
// This should force the pipeline to recreate one more suitable for our use
fHost->SetDeviceRef( nil );
// Some init color
hsColorRGBA color;
color.Set( 0.f, 0.f, 0.f, 1.f );
ClearToColor( color );
FlushToHost();
#ifdef MCN_DO_REFS
/// Of course, brilliantly enough, if we did an attach on the constructor, we don't have a key
/// yet, so we better give ourselves one before we can call AddViaNotify()
if( GetKey() == nil )
{
char str[ 256 ];
sprintf( str, "plTextGen:%s", fHost->GetKeyName() );
hsgResMgr::ResMgr()->NewKey( str, this, plLocation::kGlobalFixedLoc );
}
/// Send ourselves a passive ref of the mipmap, so we get notified if and when it goes away
hsgResMgr::ResMgr()->AddViaNotify( fHost->GetKey(), TRACKED_NEW plGenRefMsg( GetKey(), plRefMsg::kOnCreate, 0, 0 ), plRefFlags::kActiveRef );
#endif
/// All done!
}
//// IAllocateOSSurface ///////////////////////////////////////////////////////
// OS-specific. Allocates a rectangular bitmap of the given dimensions that
// the OS can draw text into. Returns a pointer to the pixels.
UInt32 *plTextGenerator::IAllocateOSSurface( UInt16 width, UInt16 height )
{
#if HS_BUILD_FOR_WIN32
BITMAPINFO bmi;
// Create a new DC and bitmap that we can draw characters to
memset( &bmi.bmiHeader, 0, sizeof( BITMAPINFOHEADER ) );
bmi.bmiHeader.biSize = sizeof( BITMAPINFOHEADER );
bmi.bmiHeader.biWidth = width;
bmi.bmiHeader.biHeight = -(int)height;
bmi.bmiHeader.biPlanes = 1;
bmi.bmiHeader.biCompression = BI_RGB;
bmi.bmiHeader.biBitCount = 32;
fWinRGBDC = CreateCompatibleDC( nil );
fWinRGBBitmap = CreateDIBSection( fWinRGBDC, &bmi, DIB_RGB_COLORS, (void **)&fWinRGBBits, nil, 0 );
SetMapMode( fWinRGBDC, MM_TEXT );
SetBkMode( fWinRGBDC, TRANSPARENT );
SetTextAlign( fWinRGBDC, TA_TOP | TA_LEFT );
SelectObject( fWinRGBDC, fWinRGBBitmap );
// Now create a second DC/bitmap combo, this one for writing alpha values to
memset( &bmi.bmiHeader, 0, sizeof( BITMAPINFOHEADER ) );
bmi.bmiHeader.biSize = sizeof( BITMAPINFOHEADER );
bmi.bmiHeader.biWidth = width;
bmi.bmiHeader.biHeight = -(int)height;
bmi.bmiHeader.biPlanes = 1;
bmi.bmiHeader.biCompression = BI_RGB;
bmi.bmiHeader.biBitCount = 8;
fWinAlphaDC = CreateCompatibleDC( nil );
fWinAlphaBitmap = CreateDIBSection( fWinAlphaDC, &bmi, DIB_RGB_COLORS, (void **)&fWinAlphaBits, nil, 0 );
SetMapMode( fWinAlphaDC, MM_TEXT );
SetBkMode( fWinAlphaDC, TRANSPARENT );
SetTextAlign( fWinAlphaDC, TA_TOP | TA_LEFT );
SelectObject( fWinAlphaDC, fWinAlphaBitmap );
return (UInt32 *)fWinRGBBits;
#endif
}
//// Detach ///////////////////////////////////////////////////////////////////
// Release the mipmap unto itself.
void plTextGenerator::Detach( void )
{
if( fHost == nil )
return;
// hsAssert( fHost != nil, "Attempting to detach unattached host" );
SetFont( nil, 0 );
IDestroyOSSurface();
fHost->Reset();
fHost->fFlags &= ~( plMipmap::kUserOwnsBitmap | plMipmap::kDontThrowAwayImage );
// Destroy the old texture ref, since we're no longer using it
fHost->SetDeviceRef( nil );
plMipmap *oldHost = fHost;
fHost = nil;
#ifdef MCN_DO_REFS
// Now send ourselves a unref msg, just in case we were called directly (if this was done by
// message, we'll get called a few times, but that's ok, we're set up to handle that, and it
// won't happen 'cept on destruction so the speed penalty shouldn't be a problem)
GetKey()->Release( oldHost->GetKey() );
#endif
}
//// IDestroyOSSurface ////////////////////////////////////////////////////////
// Opposite of allocate. DUH!
void plTextGenerator::IDestroyOSSurface( void )
{
#if HS_BUILD_FOR_WIN32
fHost->fImage = nil; // DeleteObject() will get rid of it for us
DeleteObject( fWinRGBBitmap );
DeleteDC( fWinRGBDC );
DeleteObject( fWinAlphaBitmap );
DeleteDC( fWinAlphaDC );
#endif
}
//// ClearToColor /////////////////////////////////////////////////////////////
void plTextGenerator::ClearToColor( hsColorRGBA &color )
{
int i;
UInt32 *data = (UInt32 *)fHost->fImage;
UInt32 hexColor = color.ToARGB32();
#if HS_BUILD_FOR_WIN32
GdiFlush();
#endif
for( i = 0; i < fHost->fWidth * fHost->fHeight; i++ )
data[ i ] = hexColor;
// Fill our alpha bitmap as well, since we use that too
#if HS_BUILD_FOR_WIN32
memset( fWinAlphaBits, (UInt8)( color.a * 255.f ), fHost->fWidth * fHost->fHeight );
#endif
}
//// SetFont //////////////////////////////////////////////////////////////////
// OS-specific. Load the given font for drawing the text with.
void plTextGenerator::SetFont( const char *face, UInt16 size, hsBool antiAliasRGB )
{
#if HS_BUILD_FOR_WIN32
if( fWinFont != nil )
{
DeleteObject( fWinFont );
fWinFont = nil;
}
if( fWinAlphaFont != nil )
{
DeleteObject( fWinAlphaFont );
fWinAlphaFont = nil;
}
if( face != nil )
{
int nHeight = -MulDiv( size, GetDeviceCaps( fWinRGBDC, LOGPIXELSY ), 72 );
fWinFont = CreateFont( nHeight, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, DEFAULT_CHARSET, OUT_DEFAULT_PRECIS,
CLIP_DEFAULT_PRECIS, antiAliasRGB ? ANTIALIASED_QUALITY : DEFAULT_QUALITY, VARIABLE_PITCH, face );
hsAssert( fWinFont != nil, "Cannot create Windows font for plTextGenerator" );
// The font for the alpha channel is identical except that it's antialiased, whereas the RGB version isn't.
fWinAlphaFont = CreateFont( nHeight, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, DEFAULT_CHARSET, OUT_DEFAULT_PRECIS,
CLIP_DEFAULT_PRECIS, (!antiAliasRGB) ? ANTIALIASED_QUALITY : DEFAULT_QUALITY, VARIABLE_PITCH, face );
hsAssert( fWinAlphaFont != nil, "Cannot create Windows font for plTextGenerator" );
SelectObject( fWinRGBDC, fWinFont );
SelectObject( fWinAlphaDC, fWinAlphaFont );
}
#endif
}
//// SetTextColor /////////////////////////////////////////////////////////////
// blockRGB basically forces the RGB channel to write in blocks instead of
// actual characters. This isn't useful unless you're relying on the alpha
// channel to do the text (opaque text and transparent background), in which
// case you want plenty of block color in your RGB channel because it'll get
// alpha-ed out by the alpha channel.
void plTextGenerator::SetTextColor( hsColorRGBA &color, hsBool blockRGB )
{
#if HS_BUILD_FOR_WIN32
int r = (int)(color.r * 255.f);
int g = (int)(color.g * 255.f);
int b = (int)(color.b * 255.f);
int a = (int)(color.a * 255.f);
if( blockRGB )
{
::SetBkColor( fWinRGBDC, RGB( r, g, b ) );
::SetBkMode( fWinRGBDC, OPAQUE );
}
else
::SetBkMode( fWinRGBDC, TRANSPARENT );
::SetTextColor( fWinRGBDC, RGB( r, g, b ) );
::SetTextColor( fWinAlphaDC, RGB( a, a, a ) );
#endif
}
//// DrawString ///////////////////////////////////////////////////////////////
void plTextGenerator::DrawString( UInt16 x, UInt16 y, const char *text )
{
wchar_t *wText = hsStringToWString(text);
DrawString(x,y,wText);
delete [] wText;
}
void plTextGenerator::DrawString( UInt16 x, UInt16 y, const wchar_t *text )
{
#if HS_BUILD_FOR_WIN32
::TextOutW( fWinRGBDC, x, y, text, wcslen( text ) );
::TextOutW( fWinAlphaDC, x, y, text, wcslen( text ) );
#endif
}
//// DrawClippedString ////////////////////////////////////////////////////////
void plTextGenerator::DrawClippedString( Int16 x, Int16 y, const char *text, UInt16 width, UInt16 height )
{
wchar_t *wText = hsStringToWString(text);
DrawClippedString(x,y,wText,width,height);
delete [] wText;
}
void plTextGenerator::DrawClippedString( Int16 x, Int16 y, const wchar_t *text, UInt16 width, UInt16 height )
{
#if HS_BUILD_FOR_WIN32
RECT r;
::SetRect( &r, x, y, x + width, y + height );
::ExtTextOutW( fWinRGBDC, x, y, ETO_CLIPPED, &r, text, wcslen( text ), nil );
::ExtTextOutW( fWinAlphaDC, x, y, ETO_CLIPPED, &r, text, wcslen( text ), nil );
#endif
}
//// DrawClippedString ////////////////////////////////////////////////////////
void plTextGenerator::DrawClippedString( Int16 x, Int16 y, const char *text, UInt16 clipX, UInt16 clipY, UInt16 width, UInt16 height )
{
wchar_t *wText = hsStringToWString(text);
DrawClippedString(x,y,wText,clipX,clipY,width,height);
delete [] wText;
}
void plTextGenerator::DrawClippedString( Int16 x, Int16 y, const wchar_t *text, UInt16 clipX, UInt16 clipY, UInt16 width, UInt16 height )
{
#if HS_BUILD_FOR_WIN32
RECT r;
::SetRect( &r, clipX, clipY, clipX + width, clipY + height );
::ExtTextOutW( fWinRGBDC, x, y, ETO_CLIPPED, &r, text, wcslen( text ), nil );
::ExtTextOutW( fWinAlphaDC, x, y, ETO_CLIPPED, &r, text, wcslen( text ), nil );
#endif
}
//// DrawWrappedString ////////////////////////////////////////////////////////
void plTextGenerator::DrawWrappedString( UInt16 x, UInt16 y, const char *text, UInt16 width, UInt16 height )
{
wchar_t *wText = hsStringToWString(text);
DrawWrappedString(x,y,wText,width,height);
delete [] wText;
}
void plTextGenerator::DrawWrappedString( UInt16 x, UInt16 y, const wchar_t *text, UInt16 width, UInt16 height )
{
#if HS_BUILD_FOR_WIN32
RECT r;
::SetRect( &r, x, y, x + width, y + height );
// HBRUSH brush = ::CreateSolidBrush( RGB( 255, 255, 255 ) );
// ::FillRect( fWinRGBDC, &r, brush );
// ::DeleteObject( brush );
::DrawTextW( fWinRGBDC, text, wcslen( text ), &r,
DT_TOP | DT_LEFT | DT_NOPREFIX | DT_WORDBREAK );
::DrawTextW( fWinAlphaDC, text, wcslen( text ), &r,
DT_TOP | DT_LEFT | DT_NOPREFIX | DT_WORDBREAK );
#endif
}
//// CalcStringWidth //////////////////////////////////////////////////////////
UInt16 plTextGenerator::CalcStringWidth( const char *text, UInt16 *height )
{
wchar_t *wText = hsStringToWString(text);
UInt16 retVal = CalcStringWidth(wText,height);
delete [] wText;
return retVal;
}
UInt16 plTextGenerator::CalcStringWidth( const wchar_t *text, UInt16 *height )
{
#if HS_BUILD_FOR_WIN32
SIZE size;
::GetTextExtentPoint32W( fWinRGBDC, text, wcslen( text ), &size );
if( height != nil )
*height = (UInt16)size.cy;
return (UInt16)size.cx;
#endif
}
//// CalcWrappedStringSize ////////////////////////////////////////////////////
void plTextGenerator::CalcWrappedStringSize( const char *text, UInt16 *width, UInt16 *height )
{
wchar_t *wText = hsStringToWString(text);
CalcWrappedStringSize(wText,width,height);
delete [] wText;
}
void plTextGenerator::CalcWrappedStringSize( const wchar_t *text, UInt16 *width, UInt16 *height )
{
#if HS_BUILD_FOR_WIN32
RECT r;
::SetRect( &r, 0, 0, *width, 0 );
::DrawTextW( fWinRGBDC, text, wcslen( text ), &r, DT_TOP | DT_LEFT | DT_NOPREFIX | DT_WORDBREAK | DT_CALCRECT );
*width = (UInt16)(r.right);
if( height != nil )
*height = (UInt16)r.bottom;
#endif
}
//// FillRect /////////////////////////////////////////////////////////////////
void plTextGenerator::FillRect( UInt16 x, UInt16 y, UInt16 width, UInt16 height, hsColorRGBA &color )
{
#if HS_BUILD_FOR_WIN32
RECT rc;
::SetRect( &rc, x, y, x + width, y + height );
int r = (int)(color.r * 255.f);
int g = (int)(color.g * 255.f);
int b = (int)(color.b * 255.f);
int a = (int)(color.a * 255.f);
HBRUSH brush = ::CreateSolidBrush( RGB( r, g, b ) );
::FillRect( fWinRGBDC, &rc, brush );
::DeleteObject( brush );
brush = ::CreateSolidBrush( RGB( a, a, a ) );
::FillRect( fWinAlphaDC, &rc, brush );
::DeleteObject( brush );
#endif
}
//// FrameRect ////////////////////////////////////////////////////////////////
void plTextGenerator::FrameRect( UInt16 x, UInt16 y, UInt16 width, UInt16 height, hsColorRGBA &color )
{
#if HS_BUILD_FOR_WIN32
RECT rc;
::SetRect( &rc, x, y, x + width, y + height );
int r = (int)(color.r * 255.f);
int g = (int)(color.g * 255.f);
int b = (int)(color.b * 255.f);
int a = (int)(color.a * 255.f);
HBRUSH brush = ::CreateSolidBrush( RGB( r, g, b ) );
::FrameRect( fWinRGBDC, &rc, brush );
::DeleteObject( brush );
brush = ::CreateSolidBrush( RGB( a, a, a ) );
::FrameRect( fWinAlphaDC, &rc, brush );
::DeleteObject( brush );
#endif
}
//// FlushToHost //////////////////////////////////////////////////////////////
void plTextGenerator::FlushToHost( void )
{
#if HS_BUILD_FOR_WIN32
// Flush the GDI first, to make sure it's done
GdiFlush();
// Now copy our alpha channel over. I hate the GDI
UInt32 i = fHost->fWidth * fHost->fHeight;
UInt32 *dest = fWinRGBBits;
UInt8 *src = fWinAlphaBits;
/* while( i-- )
{
*dest &= 0x00ffffff;
*dest |= ( *src ) << 24;
// *dest |= ( *dest << 16 ) & 0xff000000;
dest++;
src++;
}
*/
do
{
i--;
dest[ i ] &= 0x00ffffff;
dest[ i ] |= src[ i ] << 24;
} while( i );
#endif
// Dirty the mipmap's deviceRef, if there is one
if( fHost->GetDeviceRef() != nil )
fHost->GetDeviceRef()->SetDirty( true );
}
//// GetTextWidth/Height //////////////////////////////////////////////////////
UInt16 plTextGenerator::GetTextWidth( void )
{
return ( fHost != nil ) ? (UInt16)(fHost->fWidth) : 0;
}
UInt16 plTextGenerator::GetTextHeight( void )
{
return ( fHost != nil ) ? (UInt16)(fHost->fHeight) : 0;
}
//// GetLayerTransform ////////////////////////////////////////////////////////
// Since the textGen can actually create a texture bigger than you were expecting,
// you want to be able to apply a layer texture transform that will compensate. This
// function will give you that transform. Just feed it into plLayer->SetTransform().
hsMatrix44 plTextGenerator::GetLayerTransform( void )
{
hsMatrix44 xform;
hsVector3 scale;
scale.Set( (float)GetWidth() / (float)GetTextWidth(),
(float)GetHeight() / (float)GetTextHeight(), 1.f );
xform.MakeScaleMat( &scale );
return xform;
}
//// MsgReceive ///////////////////////////////////////////////////////////////
hsBool plTextGenerator::MsgReceive( plMessage *msg )
{
#ifdef MCN_DO_REFS
plGenRefMsg *refMsg = plGenRefMsg::ConvertNoRef( msg );
if( refMsg != nil )
{
if( refMsg->GetContext() & ( plRefMsg::kOnCreate | plRefMsg::kOnRequest ) )
{
// Don't do anything--already did an attach
}
else if( refMsg->GetContext() & ( plRefMsg::kOnDestroy | plRefMsg::kOnRemove ) )
{
Detach();
}
return true;
}
#endif
return hsKeyedObject::MsgReceive( msg );
}