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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==*/
///////////////////////////////////////////////////////////////////////////////
// //
// 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_t width, uint16_t 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_t width, uint16_t height )
{
uint16_t 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_t *plTextGenerator::IAllocateOSSurface( uint16_t width, uint16_t 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_t *)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_t *data = (uint32_t *)fHost->fImage;
uint32_t 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_t)( 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_t 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_t x, uint16_t y, const char *text )
{
wchar_t *wText = hsStringToWString(text);
DrawString(x,y,wText);
delete [] wText;
}
void plTextGenerator::DrawString( uint16_t x, uint16_t 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_t x, int16_t y, const char *text, uint16_t width, uint16_t height )
{
wchar_t *wText = hsStringToWString(text);
DrawClippedString(x,y,wText,width,height);
delete [] wText;
}
void plTextGenerator::DrawClippedString( int16_t x, int16_t y, const wchar_t *text, uint16_t width, uint16_t 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_t x, int16_t y, const char *text, uint16_t clipX, uint16_t clipY, uint16_t width, uint16_t height )
{
wchar_t *wText = hsStringToWString(text);
DrawClippedString(x,y,wText,clipX,clipY,width,height);
delete [] wText;
}
void plTextGenerator::DrawClippedString( int16_t x, int16_t y, const wchar_t *text, uint16_t clipX, uint16_t clipY, uint16_t width, uint16_t 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_t x, uint16_t y, const char *text, uint16_t width, uint16_t height )
{
wchar_t *wText = hsStringToWString(text);
DrawWrappedString(x,y,wText,width,height);
delete [] wText;
}
void plTextGenerator::DrawWrappedString( uint16_t x, uint16_t y, const wchar_t *text, uint16_t width, uint16_t 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_t plTextGenerator::CalcStringWidth( const char *text, uint16_t *height )
{
wchar_t *wText = hsStringToWString(text);
uint16_t retVal = CalcStringWidth(wText,height);
delete [] wText;
return retVal;
}
uint16_t plTextGenerator::CalcStringWidth( const wchar_t *text, uint16_t *height )
{
#if HS_BUILD_FOR_WIN32
SIZE size;
::GetTextExtentPoint32W( fWinRGBDC, text, wcslen( text ), &size );
if( height != nil )
*height = (uint16_t)size.cy;
return (uint16_t)size.cx;
#endif
}
//// CalcWrappedStringSize ////////////////////////////////////////////////////
void plTextGenerator::CalcWrappedStringSize( const char *text, uint16_t *width, uint16_t *height )
{
wchar_t *wText = hsStringToWString(text);
CalcWrappedStringSize(wText,width,height);
delete [] wText;
}
void plTextGenerator::CalcWrappedStringSize( const wchar_t *text, uint16_t *width, uint16_t *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_t)(r.right);
if( height != nil )
*height = (uint16_t)r.bottom;
#endif
}
//// FillRect /////////////////////////////////////////////////////////////////
void plTextGenerator::FillRect( uint16_t x, uint16_t y, uint16_t width, uint16_t 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_t x, uint16_t y, uint16_t width, uint16_t 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_t i = fHost->fWidth * fHost->fHeight;
uint32_t *dest = fWinRGBBits;
uint8_t *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_t plTextGenerator::GetTextWidth( void )
{
return ( fHost != nil ) ? (uint16_t)(fHost->fWidth) : 0;
}
uint16_t plTextGenerator::GetTextHeight( void )
{
return ( fHost != nil ) ? (uint16_t)(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 );
}