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SCI2: Added some currently unused code for drawing text on a buffer

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svn-id: r54143
This commit is contained in:
Filippos Karapetis 2010-11-08 16:12:58 +00:00
parent d8eefdb52a
commit 8504e30dac
2 changed files with 32 additions and 0 deletions
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28
engines/sci/graphics/font.cpp
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@ -99,4 +99,32 @@ void GfxFontFromResource::draw(uint16 chr, int16 top, int16 left, byte color, bo
}
}
#ifdef ENABLE_SCI32
void GfxFontFromResource::drawToBuffer(uint16 chr, int16 top, int16 left, byte color, bool greyedOutput, byte *buffer, int16 bufWidth, int16 bufHeight) {
int charWidth = MIN<int>(getCharWidth(chr), bufWidth - left);
int charHeight = MIN<int>(getCharHeight(chr), bufHeight - top);
byte b = 0, mask = 0xFF;
int y = 0;
int16 greyedTop = top;
byte *pIn = getCharData(chr);
for (int i = 0; i < charHeight; i++, y++) {
if (greyedOutput)
mask = ((greyedTop++) % 2) ? 0xAA : 0x55;
for (int done = 0; done < charWidth; done++) {
if ((done & 7) == 0) // fetching next data byte
b = *(pIn++) & mask;
if (b & 0x80) { // if MSB is set - paint it
_screen->putFontPixel(top, left + done, y, color);
int offset = (top + y) * bufWidth + (left + done);
buffer[offset] = color;
}
b = b << 1;
}
}
}
#endif
} // End of namespace Sci

4
engines/sci/graphics/font.h
View File

@ -56,6 +56,10 @@ public:
byte getHeight();
byte getCharWidth(uint16 chr);
void draw(uint16 chr, int16 top, int16 left, byte color, bool greyedOutput);
#ifdef ENABLE_SCI32
// SCI2/2.1 equivalent
void drawToBuffer(uint16 chr, int16 top, int16 left, byte color, bool greyedOutput, byte *buffer, int16 width, int16 height);
#endif
private:
byte getCharHeight(uint16 chr);