diff options
Diffstat (limited to 'src/gfx.cpp')
-rw-r--r-- | src/gfx.cpp | 80 |
1 files changed, 12 insertions, 68 deletions
diff --git a/src/gfx.cpp b/src/gfx.cpp index f5f381e62..93b3e3608 100644 --- a/src/gfx.cpp +++ b/src/gfx.cpp @@ -161,79 +161,23 @@ void GfxFillRect(int left, int top, int right, int bottom, int color) } } -static void GfxSetPixel(int x, int y, int color) -{ - Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter(); - const DrawPixelInfo *dpi = _cur_dpi; - - if ((x -= dpi->left) < 0 || x >= dpi->width || (y -= dpi->top) < 0 || y >= dpi->height) return; - blitter->SetPixel(dpi->dst_ptr, x, y, color); -} - void GfxDrawLine(int x, int y, int x2, int y2, int color) { - int dy; - int dx; - int stepx; - int stepy; - int frac; - - /* Check clipping first */ - { - DrawPixelInfo *dpi = _cur_dpi; - int t; - - if (x < dpi->left && x2 < dpi->left) return; - - if (y < dpi->top && y2 < dpi->top) return; - - t = dpi->left + dpi->width; - if (x > t && x2 > t) return; - - t = dpi->top + dpi->height; - if (y > t && y2 > t) return; - } + Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter(); + DrawPixelInfo *dpi = _cur_dpi; - dy = (y2 - y) * 2; - if (dy < 0) { - dy = -dy; - stepy = -1; - } else { - stepy = 1; - } + x -= dpi->left; + x2 -= dpi->left; + y -= dpi->top; + y2 -= dpi->top; - dx = (x2 - x) * 2; - if (dx < 0) { - dx = -dx; - stepx = -1; - } else { - stepx = 1; - } + /* Check clipping */ + if (x < 0 && x2 < 0) return; + if (y < 0 && y2 < 0) return; + if (x > dpi->width && x2 > dpi->width) return; + if (y > dpi->height && y2 > dpi->height) return; - GfxSetPixel(x, y, color); - if (dx > dy) { - frac = dy - (dx >> 1); - while (x != x2) { - if (frac >= 0) { - y += stepy; - frac -= dx; - } - x += stepx; - frac += dy; - GfxSetPixel(x, y, color); - } - } else { - frac = dx - (dy >> 1); - while (y != y2) { - if (frac >= 0) { - x += stepx; - frac -= dy; - } - y += stepy; - frac += dx; - GfxSetPixel(x, y, color); - } - } + blitter->DrawLine(dpi->dst_ptr, x, y, x2, y2, dpi->width, dpi->height, color); } |