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8b1757eee2
Mainly this means that it's no longer necessary to reorder the palette to get working translated glyphs, so the FFontChar1 class and the TranslatedPic member and its invasive handling could all be cleaned out. All font operations now take place on true color data, with the sole execption of FSpecialFont's 'notranslate' handling.
181 lines
4.7 KiB
C++
181 lines
4.7 KiB
C++
/*
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** fontchars.cpp
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** Texture class for font characters
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**
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**---------------------------------------------------------------------------
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** Copyright 2004-2006 Randy Heit
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** Copyright 2006-2018 Christoph Oelckers
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** All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions
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** are met:
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**
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** 1. Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** 2. Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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** 3. The name of the author may not be used to endorse or promote products
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** derived from this software without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**---------------------------------------------------------------------------
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**
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**
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*/
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#include "filesystem.h"
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#include "bitmap.h"
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#include "image.h"
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#include "imagehelpers.h"
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#include "fontchars.h"
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#include "engineerrors.h"
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//==========================================================================
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//
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// FFontChar2 :: FFontChar2
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//
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// Used by FON1 and FON2 fonts.
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//
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//==========================================================================
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FFontChar2::FFontChar2(int sourcelump, int sourcepos, int width, int height, int leftofs, int topofs)
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: SourceLump(sourcelump), SourcePos(sourcepos)
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{
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Width = width;
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Height = height;
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LeftOffset = leftofs;
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TopOffset = topofs;
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}
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//==========================================================================
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//
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// FFontChar2 :: Get8BitPixels
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//
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// Like for FontChar1, the render style has no relevance here as well.
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//
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//==========================================================================
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TArray<uint8_t> FFontChar2::CreatePalettedPixels(int)
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{
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auto lump = fileSystem.OpenFileReader(SourceLump);
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int destSize = Width * Height;
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uint8_t max = 255;
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bool rle = true;
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// This is to "fix" bad fonts
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{
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uint8_t buff[16];
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lump.Read(buff, 4);
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if (buff[3] == '2')
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{
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lump.Read(buff, 7);
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max = buff[6];
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lump.Seek(SourcePos - 11, FileReader::SeekCur);
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}
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else if (buff[3] == 0x1A)
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{
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lump.Read(buff, 13);
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max = buff[12] - 1;
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lump.Seek(SourcePos - 17, FileReader::SeekCur);
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rle = false;
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}
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else
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{
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lump.Seek(SourcePos - 4, FileReader::SeekCur);
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}
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}
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TArray<uint8_t> Pixels(destSize, true);
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int runlen = 0, setlen = 0;
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uint8_t setval = 0; // Shut up, GCC!
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uint8_t* dest_p = Pixels.Data();
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int dest_adv = Height;
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int dest_rew = destSize - 1;
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if (rle)
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{
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for (int y = Height; y != 0; --y)
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{
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for (int x = Width; x != 0; )
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{
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if (runlen != 0)
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{
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uint8_t color = lump.ReadUInt8();
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color = MIN(color, max);
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*dest_p = color;
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dest_p += dest_adv;
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x--;
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runlen--;
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}
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else if (setlen != 0)
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{
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*dest_p = setval;
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dest_p += dest_adv;
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x--;
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setlen--;
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}
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else
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{
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int8_t code = lump.ReadInt8();
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if (code >= 0)
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{
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runlen = code + 1;
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}
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else if (code != -128)
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{
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uint8_t color = lump.ReadUInt8();
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setlen = (-code) + 1;
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setval = MIN(color, max);
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}
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}
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}
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dest_p -= dest_rew;
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}
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}
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else
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{
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for (int y = Height; y != 0; --y)
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{
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for (int x = Width; x != 0; --x)
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{
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uint8_t color = lump.ReadUInt8();
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if (color > max)
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{
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color = max;
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}
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*dest_p = color;
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dest_p += dest_adv;
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}
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dest_p -= dest_rew;
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}
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}
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if (destSize < 0)
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{
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char name[9];
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fileSystem.GetFileShortName(name, SourceLump);
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name[8] = 0;
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I_FatalError("The font %s is corrupt", name);
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}
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return Pixels;
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}
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int FFontChar2::CopyPixels(FBitmap* bmp, int conversion)
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{
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if (conversion == luminance) conversion = normal; // luminance images have no use as an RGB source.
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auto ppix = CreatePalettedPixels(conversion);
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bmp->CopyPixelData(0, 0, ppix.Data(), Width, Height, Height, 1, 0, SourceRemap, nullptr);
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return 0;
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}
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