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https://github.com/scummvm/scummvm.git
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66 lines
1.9 KiB
C++
66 lines
1.9 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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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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*
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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, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include "glk/comprehend/charset.h"
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#include "common/file.h"
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#include "graphics/surface.h"
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namespace Glk {
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namespace Comprehend {
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CharSet::CharSet() : Graphics::Font() {
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Common::File f;
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if (!f.open("charset.gda"))
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error("Could not open char set");
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uint version = f.readUint16LE();
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if (version != 0x1100)
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error("Unknown char set version");
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f.seek(4);
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for (int idx = 0; idx < 128 - 32; ++idx)
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f.read(&_data[idx][0], 8);
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f.close();
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}
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void CharSet::drawChar(Graphics::Surface *dst, uint32 chr, int x, int y, uint32 color) const {
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assert(dst->format.bytesPerPixel == 4);
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assert(chr >= 32 && chr < 128);
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for (int yp = 0; yp < 8; ++yp) {
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if ((y + yp) < 0 || (y + yp) >= dst->h)
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continue;
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uint32 *lineP = (uint32 *)dst->getBasePtr(x, y + yp);
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byte bits = _data[chr - 32][yp];
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for (int xp = x; xp < (x + 8); ++xp, ++lineP, bits >>= 1) {
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if ((xp >= 0) && (xp < dst->w) && (bits & 1))
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*lineP = color;
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}
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}
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}
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} // namespace Comprehend
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} // namespace Glk
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