diff options
Diffstat (limited to 'engines/gob/surface.cpp')
| -rw-r--r-- | engines/gob/surface.cpp | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/engines/gob/surface.cpp b/engines/gob/surface.cpp index e294209ed7..3eaf741be2 100644 --- a/engines/gob/surface.cpp +++ b/engines/gob/surface.cpp @@ -280,6 +280,18 @@ Surface::Surface(uint16 width, uint16 height, uint8 bpp, byte *vidMem) : _ownVidMem = false; } +Surface::Surface(uint16 width, uint16 height, uint8 bpp, const byte *vidMem) : + _width(width), _height(height), _bpp(bpp), _vidMem(0) { + + assert((_width > 0) && (_height > 0)); + assert((_bpp == 1) || (_bpp == 2)); + + _vidMem = new byte[_bpp * _width * _height]; + _ownVidMem = true; + + memcpy(_vidMem, vidMem, _bpp * _width * _height); +} + Surface::~Surface() { if (_ownVidMem) delete[] _vidMem; @@ -683,6 +695,34 @@ void Surface::drawLine(uint16 x0, uint16 y0, uint16 x1, uint16 y1, uint32 color) Graphics::drawLine(x0, y0, x1, y1, color, &plotPixel, this); } +void Surface::drawRect(uint16 left, uint16 top, uint16 right, uint16 bottom, uint32 color) { + // Just in case those are swapped + if (left > right) + SWAP(left, right); + if (top > bottom) + SWAP(top, bottom); + + if ((left >= _width) || (top >= _height)) + // Nothing to do + return; + + // Area to actually draw + const uint16 width = CLIP<int32>(right - left + 1, 0, _width - left); + const uint16 height = CLIP<int32>(bottom - top + 1, 0, _height - top); + + if ((width == 0) || (height == 0)) + // Nothing to do + return; + + right = left + width - 1; + bottom = top + height - 1; + + drawLine(left , top , left , bottom, color); + drawLine(right, top , right, bottom, color); + drawLine(left , top , right, top , color); + drawLine(left , bottom, right, bottom, color); +} + /* * The original's version of the Bresenham Algorithm was a bit "unclean" * and produced strange edges at 45, 135, 225 and 315 degrees, so using the |