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594 lines
19 KiB
594 lines
19 KiB
/*==LICENSE==* |
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CyanWorlds.com Engine - MMOG client, server and tools |
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Copyright (C) 2011 Cyan Worlds, Inc. |
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This program is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, either version 3 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program. If not, see <http://www.gnu.org/licenses/>. |
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You can contact Cyan Worlds, Inc. by email legal@cyan.com |
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or by snail mail at: |
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Cyan Worlds, Inc. |
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14617 N Newport Hwy |
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Mead, WA 99021 |
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*==LICENSE==*/ |
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/////////////////////////////////////////////////////////////////////////////// |
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// // |
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// plTextGenerator Class Functions // |
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// Cyan, Inc. // |
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// // |
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//// Version History ////////////////////////////////////////////////////////// |
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// // |
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// 12.13.2001 mcn - Created. // |
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// // |
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/////////////////////////////////////////////////////////////////////////////// |
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#include "hsWindows.h" |
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#include "hsTypes.h" |
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#include "hsMatrix44.h" |
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#include "pnKeyedObject/hsKeyedObject.h" |
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#include "plTextGenerator.h" |
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#include "plGImage/plMipmap.h" |
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#include "plPipeline/hsGDeviceRef.h" |
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#include "pnMessage/plRefMsg.h" |
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#include "plgDispatch.h" |
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#include "hsResMgr.h" |
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// Because tempKeys haven't been fixed yet (mf says to blame Eric Ellis), reffing |
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// objects when we have a tempKey (or they have a tempKey) just don't work. In |
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// fact, it will do nasty things like crashing on shutdown. Until then, we simply |
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// won't do the refs. Note that this is BAD, but given the only time we currently |
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// use these objects are very limited, controlled cases that *should* be okay |
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// for now, we should be reasonably safe. For now. |
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//#define MCN_DO_REFS |
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//// Constructor & Destructor ///////////////////////////////////////////////// |
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plTextGenerator::plTextGenerator() |
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{ |
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fHost = nil; |
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} |
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plTextGenerator::plTextGenerator( plMipmap *host, UInt16 width, UInt16 height ) |
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{ |
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fHost = nil; |
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Attach( host, width, height ); |
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} |
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plTextGenerator::~plTextGenerator() |
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{ |
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// This also won't work until tempKeys work, since the mipmap will be gone by |
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// this time, in which case, calling Detach() crashes |
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#ifdef MCN_DO_REFS |
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Detach(); |
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#endif |
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} |
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//// Attach /////////////////////////////////////////////////////////////////// |
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// Grab onto a plMipmap, suck the texture out of it and replace it with our |
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// own. |
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void plTextGenerator::Attach( plMipmap *host, UInt16 width, UInt16 height ) |
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{ |
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UInt16 textWidth, textHeight; |
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hsAssert( fHost == nil, "Attempting to attach an already attached plTextGenerator" ); |
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fHost = host; |
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/// Suck the old texture data out |
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fHost->Reset(); |
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/// Make some new |
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// Note that we need POW-2 textures, so we go for the next one up that will |
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// fit what we need |
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for( textWidth = 1; textWidth < width; textWidth <<= 1 ); |
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for( textHeight = 1; textHeight < height; textHeight <<= 1 ); |
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fWidth = width; |
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fHeight = height; |
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fHost->fImage = (void *)IAllocateOSSurface( textWidth, textHeight ); |
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fHost->SetConfig( plMipmap::kARGB32Config ); |
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fHost->fWidth = textWidth; |
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fHost->fHeight = textHeight; |
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fHost->fPixelSize = 32; |
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fHost->fRowBytes = textWidth * 4; |
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fHost->fNumLevels = 1; |
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fHost->fFlags |= plMipmap::kUserOwnsBitmap | plMipmap::kDontThrowAwayImage; |
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fHost->fCompressionType = plMipmap::kUncompressed; |
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fHost->fUncompressedInfo.fType = plMipmap::UncompressedInfo::kRGB8888; |
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fHost->IBuildLevelSizes(); |
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fHost->fTotalSize = fHost->GetLevelSize( 0 ); |
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// Destroy the old texture ref, since it's probably completely nutsoid at this point. |
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// This should force the pipeline to recreate one more suitable for our use |
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fHost->SetDeviceRef( nil ); |
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// Some init color |
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hsColorRGBA color; |
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color.Set( 0.f, 0.f, 0.f, 1.f ); |
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ClearToColor( color ); |
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FlushToHost(); |
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#ifdef MCN_DO_REFS |
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/// Of course, brilliantly enough, if we did an attach on the constructor, we don't have a key |
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/// yet, so we better give ourselves one before we can call AddViaNotify() |
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if( GetKey() == nil ) |
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{ |
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char str[ 256 ]; |
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sprintf( str, "plTextGen:%s", fHost->GetKeyName() ); |
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hsgResMgr::ResMgr()->NewKey( str, this, plLocation::kGlobalFixedLoc ); |
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} |
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/// Send ourselves a passive ref of the mipmap, so we get notified if and when it goes away |
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hsgResMgr::ResMgr()->AddViaNotify( fHost->GetKey(), TRACKED_NEW plGenRefMsg( GetKey(), plRefMsg::kOnCreate, 0, 0 ), plRefFlags::kActiveRef ); |
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#endif |
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/// All done! |
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} |
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//// IAllocateOSSurface /////////////////////////////////////////////////////// |
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// OS-specific. Allocates a rectangular bitmap of the given dimensions that |
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// the OS can draw text into. Returns a pointer to the pixels. |
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UInt32 *plTextGenerator::IAllocateOSSurface( UInt16 width, UInt16 height ) |
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{ |
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#if HS_BUILD_FOR_WIN32 |
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BITMAPINFO bmi; |
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// Create a new DC and bitmap that we can draw characters to |
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memset( &bmi.bmiHeader, 0, sizeof( BITMAPINFOHEADER ) ); |
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bmi.bmiHeader.biSize = sizeof( BITMAPINFOHEADER ); |
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bmi.bmiHeader.biWidth = width; |
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bmi.bmiHeader.biHeight = -(int)height; |
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bmi.bmiHeader.biPlanes = 1; |
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bmi.bmiHeader.biCompression = BI_RGB; |
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bmi.bmiHeader.biBitCount = 32; |
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fWinRGBDC = CreateCompatibleDC( nil ); |
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fWinRGBBitmap = CreateDIBSection( fWinRGBDC, &bmi, DIB_RGB_COLORS, (void **)&fWinRGBBits, nil, 0 ); |
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SetMapMode( fWinRGBDC, MM_TEXT ); |
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SetBkMode( fWinRGBDC, TRANSPARENT ); |
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SetTextAlign( fWinRGBDC, TA_TOP | TA_LEFT ); |
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SelectObject( fWinRGBDC, fWinRGBBitmap ); |
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// Now create a second DC/bitmap combo, this one for writing alpha values to |
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memset( &bmi.bmiHeader, 0, sizeof( BITMAPINFOHEADER ) ); |
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bmi.bmiHeader.biSize = sizeof( BITMAPINFOHEADER ); |
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bmi.bmiHeader.biWidth = width; |
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bmi.bmiHeader.biHeight = -(int)height; |
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bmi.bmiHeader.biPlanes = 1; |
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bmi.bmiHeader.biCompression = BI_RGB; |
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bmi.bmiHeader.biBitCount = 8; |
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fWinAlphaDC = CreateCompatibleDC( nil ); |
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fWinAlphaBitmap = CreateDIBSection( fWinAlphaDC, &bmi, DIB_RGB_COLORS, (void **)&fWinAlphaBits, nil, 0 ); |
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SetMapMode( fWinAlphaDC, MM_TEXT ); |
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SetBkMode( fWinAlphaDC, TRANSPARENT ); |
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SetTextAlign( fWinAlphaDC, TA_TOP | TA_LEFT ); |
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SelectObject( fWinAlphaDC, fWinAlphaBitmap ); |
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return (UInt32 *)fWinRGBBits; |
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#endif |
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} |
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//// Detach /////////////////////////////////////////////////////////////////// |
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// Release the mipmap unto itself. |
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void plTextGenerator::Detach( void ) |
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{ |
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if( fHost == nil ) |
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return; |
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// hsAssert( fHost != nil, "Attempting to detach unattached host" ); |
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SetFont( nil, 0 ); |
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IDestroyOSSurface(); |
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fHost->Reset(); |
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fHost->fFlags &= ~( plMipmap::kUserOwnsBitmap | plMipmap::kDontThrowAwayImage ); |
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// Destroy the old texture ref, since we're no longer using it |
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fHost->SetDeviceRef( nil ); |
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plMipmap *oldHost = fHost; |
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fHost = nil; |
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#ifdef MCN_DO_REFS |
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// Now send ourselves a unref msg, just in case we were called directly (if this was done by |
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// message, we'll get called a few times, but that's ok, we're set up to handle that, and it |
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// won't happen 'cept on destruction so the speed penalty shouldn't be a problem) |
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GetKey()->Release( oldHost->GetKey() ); |
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#endif |
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} |
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//// IDestroyOSSurface //////////////////////////////////////////////////////// |
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// Opposite of allocate. DUH! |
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void plTextGenerator::IDestroyOSSurface( void ) |
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{ |
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#if HS_BUILD_FOR_WIN32 |
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fHost->fImage = nil; // DeleteObject() will get rid of it for us |
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DeleteObject( fWinRGBBitmap ); |
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DeleteDC( fWinRGBDC ); |
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DeleteObject( fWinAlphaBitmap ); |
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DeleteDC( fWinAlphaDC ); |
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#endif |
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} |
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//// ClearToColor ///////////////////////////////////////////////////////////// |
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void plTextGenerator::ClearToColor( hsColorRGBA &color ) |
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{ |
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int i; |
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UInt32 *data = (UInt32 *)fHost->fImage; |
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UInt32 hexColor = color.ToARGB32(); |
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#if HS_BUILD_FOR_WIN32 |
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GdiFlush(); |
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#endif |
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for( i = 0; i < fHost->fWidth * fHost->fHeight; i++ ) |
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data[ i ] = hexColor; |
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// Fill our alpha bitmap as well, since we use that too |
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#if HS_BUILD_FOR_WIN32 |
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memset( fWinAlphaBits, (UInt8)( color.a * 255.f ), fHost->fWidth * fHost->fHeight ); |
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#endif |
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} |
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//// SetFont ////////////////////////////////////////////////////////////////// |
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// OS-specific. Load the given font for drawing the text with. |
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void plTextGenerator::SetFont( const char *face, UInt16 size, hsBool antiAliasRGB ) |
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{ |
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#if HS_BUILD_FOR_WIN32 |
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if( fWinFont != nil ) |
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{ |
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DeleteObject( fWinFont ); |
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fWinFont = nil; |
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} |
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if( fWinAlphaFont != nil ) |
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{ |
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DeleteObject( fWinAlphaFont ); |
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fWinAlphaFont = nil; |
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} |
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if( face != nil ) |
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{ |
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int nHeight = -MulDiv( size, GetDeviceCaps( fWinRGBDC, LOGPIXELSY ), 72 ); |
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fWinFont = CreateFont( nHeight, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, |
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CLIP_DEFAULT_PRECIS, antiAliasRGB ? ANTIALIASED_QUALITY : DEFAULT_QUALITY, VARIABLE_PITCH, face ); |
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hsAssert( fWinFont != nil, "Cannot create Windows font for plTextGenerator" ); |
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// The font for the alpha channel is identical except that it's antialiased, whereas the RGB version isn't. |
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fWinAlphaFont = CreateFont( nHeight, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, |
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CLIP_DEFAULT_PRECIS, (!antiAliasRGB) ? ANTIALIASED_QUALITY : DEFAULT_QUALITY, VARIABLE_PITCH, face ); |
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hsAssert( fWinAlphaFont != nil, "Cannot create Windows font for plTextGenerator" ); |
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SelectObject( fWinRGBDC, fWinFont ); |
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SelectObject( fWinAlphaDC, fWinAlphaFont ); |
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} |
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#endif |
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} |
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//// SetTextColor ///////////////////////////////////////////////////////////// |
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// blockRGB basically forces the RGB channel to write in blocks instead of |
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// actual characters. This isn't useful unless you're relying on the alpha |
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// channel to do the text (opaque text and transparent background), in which |
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// case you want plenty of block color in your RGB channel because it'll get |
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// alpha-ed out by the alpha channel. |
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void plTextGenerator::SetTextColor( hsColorRGBA &color, hsBool blockRGB ) |
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{ |
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#if HS_BUILD_FOR_WIN32 |
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int r = (int)(color.r * 255.f); |
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int g = (int)(color.g * 255.f); |
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int b = (int)(color.b * 255.f); |
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int a = (int)(color.a * 255.f); |
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if( blockRGB ) |
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{ |
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::SetBkColor( fWinRGBDC, RGB( r, g, b ) ); |
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::SetBkMode( fWinRGBDC, OPAQUE ); |
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} |
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else |
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::SetBkMode( fWinRGBDC, TRANSPARENT ); |
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::SetTextColor( fWinRGBDC, RGB( r, g, b ) ); |
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::SetTextColor( fWinAlphaDC, RGB( a, a, a ) ); |
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#endif |
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} |
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//// DrawString /////////////////////////////////////////////////////////////// |
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void plTextGenerator::DrawString( UInt16 x, UInt16 y, const char *text ) |
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{ |
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wchar_t *wText = hsStringToWString(text); |
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DrawString(x,y,wText); |
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delete [] wText; |
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} |
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void plTextGenerator::DrawString( UInt16 x, UInt16 y, const wchar_t *text ) |
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{ |
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#if HS_BUILD_FOR_WIN32 |
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::TextOutW( fWinRGBDC, x, y, text, wcslen( text ) ); |
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::TextOutW( fWinAlphaDC, x, y, text, wcslen( text ) ); |
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#endif |
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} |
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//// DrawClippedString //////////////////////////////////////////////////////// |
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void plTextGenerator::DrawClippedString( Int16 x, Int16 y, const char *text, UInt16 width, UInt16 height ) |
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{ |
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wchar_t *wText = hsStringToWString(text); |
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DrawClippedString(x,y,wText,width,height); |
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delete [] wText; |
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} |
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void plTextGenerator::DrawClippedString( Int16 x, Int16 y, const wchar_t *text, UInt16 width, UInt16 height ) |
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{ |
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#if HS_BUILD_FOR_WIN32 |
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RECT r; |
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::SetRect( &r, x, y, x + width, y + height ); |
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::ExtTextOutW( fWinRGBDC, x, y, ETO_CLIPPED, &r, text, wcslen( text ), nil ); |
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::ExtTextOutW( fWinAlphaDC, x, y, ETO_CLIPPED, &r, text, wcslen( text ), nil ); |
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#endif |
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} |
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//// DrawClippedString //////////////////////////////////////////////////////// |
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void plTextGenerator::DrawClippedString( Int16 x, Int16 y, const char *text, UInt16 clipX, UInt16 clipY, UInt16 width, UInt16 height ) |
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{ |
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wchar_t *wText = hsStringToWString(text); |
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DrawClippedString(x,y,wText,clipX,clipY,width,height); |
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delete [] wText; |
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} |
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void plTextGenerator::DrawClippedString( Int16 x, Int16 y, const wchar_t *text, UInt16 clipX, UInt16 clipY, UInt16 width, UInt16 height ) |
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{ |
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#if HS_BUILD_FOR_WIN32 |
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RECT r; |
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::SetRect( &r, clipX, clipY, clipX + width, clipY + height ); |
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::ExtTextOutW( fWinRGBDC, x, y, ETO_CLIPPED, &r, text, wcslen( text ), nil ); |
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::ExtTextOutW( fWinAlphaDC, x, y, ETO_CLIPPED, &r, text, wcslen( text ), nil ); |
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#endif |
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} |
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//// DrawWrappedString //////////////////////////////////////////////////////// |
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void plTextGenerator::DrawWrappedString( UInt16 x, UInt16 y, const char *text, UInt16 width, UInt16 height ) |
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{ |
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wchar_t *wText = hsStringToWString(text); |
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DrawWrappedString(x,y,wText,width,height); |
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delete [] wText; |
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} |
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void plTextGenerator::DrawWrappedString( UInt16 x, UInt16 y, const wchar_t *text, UInt16 width, UInt16 height ) |
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{ |
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#if HS_BUILD_FOR_WIN32 |
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RECT r; |
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::SetRect( &r, x, y, x + width, y + height ); |
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// HBRUSH brush = ::CreateSolidBrush( RGB( 255, 255, 255 ) ); |
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// ::FillRect( fWinRGBDC, &r, brush ); |
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// ::DeleteObject( brush ); |
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::DrawTextW( fWinRGBDC, text, wcslen( text ), &r, |
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DT_TOP | DT_LEFT | DT_NOPREFIX | DT_WORDBREAK ); |
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::DrawTextW( fWinAlphaDC, text, wcslen( text ), &r, |
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DT_TOP | DT_LEFT | DT_NOPREFIX | DT_WORDBREAK ); |
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#endif |
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} |
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//// CalcStringWidth ////////////////////////////////////////////////////////// |
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UInt16 plTextGenerator::CalcStringWidth( const char *text, UInt16 *height ) |
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{ |
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wchar_t *wText = hsStringToWString(text); |
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UInt16 retVal = CalcStringWidth(wText,height); |
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delete [] wText; |
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return retVal; |
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} |
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UInt16 plTextGenerator::CalcStringWidth( const wchar_t *text, UInt16 *height ) |
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{ |
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#if HS_BUILD_FOR_WIN32 |
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SIZE size; |
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::GetTextExtentPoint32W( fWinRGBDC, text, wcslen( text ), &size ); |
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if( height != nil ) |
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*height = (UInt16)size.cy; |
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return (UInt16)size.cx; |
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#endif |
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} |
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//// CalcWrappedStringSize //////////////////////////////////////////////////// |
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void plTextGenerator::CalcWrappedStringSize( const char *text, UInt16 *width, UInt16 *height ) |
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{ |
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wchar_t *wText = hsStringToWString(text); |
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CalcWrappedStringSize(wText,width,height); |
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delete [] wText; |
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} |
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void plTextGenerator::CalcWrappedStringSize( const wchar_t *text, UInt16 *width, UInt16 *height ) |
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{ |
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#if HS_BUILD_FOR_WIN32 |
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RECT r; |
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::SetRect( &r, 0, 0, *width, 0 ); |
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::DrawTextW( fWinRGBDC, text, wcslen( text ), &r, DT_TOP | DT_LEFT | DT_NOPREFIX | DT_WORDBREAK | DT_CALCRECT ); |
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*width = (UInt16)(r.right); |
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if( height != nil ) |
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*height = (UInt16)r.bottom; |
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#endif |
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} |
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//// FillRect ///////////////////////////////////////////////////////////////// |
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void plTextGenerator::FillRect( UInt16 x, UInt16 y, UInt16 width, UInt16 height, hsColorRGBA &color ) |
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{ |
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#if HS_BUILD_FOR_WIN32 |
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RECT rc; |
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::SetRect( &rc, x, y, x + width, y + height ); |
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int r = (int)(color.r * 255.f); |
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int g = (int)(color.g * 255.f); |
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int b = (int)(color.b * 255.f); |
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int a = (int)(color.a * 255.f); |
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HBRUSH brush = ::CreateSolidBrush( RGB( r, g, b ) ); |
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::FillRect( fWinRGBDC, &rc, brush ); |
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::DeleteObject( brush ); |
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brush = ::CreateSolidBrush( RGB( a, a, a ) ); |
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::FillRect( fWinAlphaDC, &rc, brush ); |
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::DeleteObject( brush ); |
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#endif |
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} |
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//// FrameRect //////////////////////////////////////////////////////////////// |
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void plTextGenerator::FrameRect( UInt16 x, UInt16 y, UInt16 width, UInt16 height, hsColorRGBA &color ) |
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{ |
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#if HS_BUILD_FOR_WIN32 |
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RECT rc; |
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::SetRect( &rc, x, y, x + width, y + height ); |
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int r = (int)(color.r * 255.f); |
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int g = (int)(color.g * 255.f); |
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int b = (int)(color.b * 255.f); |
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int a = (int)(color.a * 255.f); |
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HBRUSH brush = ::CreateSolidBrush( RGB( r, g, b ) ); |
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::FrameRect( fWinRGBDC, &rc, brush ); |
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::DeleteObject( brush ); |
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brush = ::CreateSolidBrush( RGB( a, a, a ) ); |
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::FrameRect( fWinAlphaDC, &rc, brush ); |
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::DeleteObject( brush ); |
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#endif |
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} |
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//// FlushToHost ////////////////////////////////////////////////////////////// |
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void plTextGenerator::FlushToHost( void ) |
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{ |
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#if HS_BUILD_FOR_WIN32 |
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// Flush the GDI first, to make sure it's done |
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GdiFlush(); |
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// Now copy our alpha channel over. I hate the GDI |
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UInt32 i = fHost->fWidth * fHost->fHeight; |
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UInt32 *dest = fWinRGBBits; |
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UInt8 *src = fWinAlphaBits; |
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/* while( i-- ) |
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{ |
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*dest &= 0x00ffffff; |
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*dest |= ( *src ) << 24; |
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// *dest |= ( *dest << 16 ) & 0xff000000; |
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dest++; |
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src++; |
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} |
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*/ |
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do |
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{ |
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i--; |
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dest[ i ] &= 0x00ffffff; |
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dest[ i ] |= src[ i ] << 24; |
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} while( i ); |
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#endif |
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// Dirty the mipmap's deviceRef, if there is one |
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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 ); |
|
}
|
|
|