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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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/>.
*
*/
#include "common/file.h"
#include "image/bmp.h"
#include "mm/shared/utils/bitmap_font.h"
namespace MM {
bool BitmapFont::load(const Common::Path &filename) {
Image::BitmapDecoder decoder;
Common::File f;
_startingChar = ' ';
if (!f.open(filename))
error("Could not open font");
if (!decoder.loadStream(f))
error("Could not decode font");
const Graphics::Surface &src = *decoder.getSurface();
assert(src.format.bytesPerPixel == 1);
assert((src.w % 8) == 0);
assert((src.h % 8) == 0);
// Set up a characters array
_chars.resize(97 - 32);
// Iterate through loading characters
Common::Rect r(8, 8);
int charsPerRow = src.w / 8;
for (uint idx = 0; idx < _chars.size(); ++idx) {
r.moveTo((idx % charsPerRow) * 8, (idx / charsPerRow) * 8);
Common::Rect charBounds(r.left, r.top, r.left + 8, r.bottom);
_chars[idx].create(8, 8, Graphics::PixelFormat::createFormatCLUT8());
_chars[idx].transBlitFrom(src, charBounds, Common::Rect(0, 0, 8, 8));
}
return true;
}
void BitmapFont::drawChar(Graphics::Surface *dst, uint32 chr, int x, int y, uint32 color) const {
// Get the fg/bg color. When the character is >= 128,
// the colors are reversed from normal
byte fgColor = (chr < 128) ? color : 0;
byte bgColor = (chr < 128) ? 0 : color;
chr &= 0x7f;
const Graphics::ManagedSurface &c = _chars[chr - _startingChar];
for (int yCtr = 0; yCtr < c.h; ++yCtr) {
const byte *srcP = (const byte *)c.getBasePtr(0, yCtr);
for (int xCtr = 0; xCtr < c.w; ++xCtr, ++srcP) {
dst->hLine(x + xCtr, y + yCtr, x + xCtr,
*srcP ? bgColor : fgColor);
}
}
}
} // namespace MM
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