134                                int copyHeight, const GifImageDesc& imageDesc, int rowStep,  in copyInterlaceGroup()  argument
139     for (row = startRow; row < copyHeight; row += rowStep) {  in copyInterlaceGroup()
159     GifWord copyHeight = frame->ImageDesc.Height;  in blitInterlace()  local
160     if (frame->ImageDesc.Top + copyHeight > height) {  in blitInterlace()
161         copyHeight = height - frame->ImageDesc.Top;  in blitInterlace()
168     copyInterlaceGroup(bm, src, cmap, transparent, copyWidth, copyHeight, frame->ImageDesc, 8, 0);  in blitInterlace()
171     copyInterlaceGroup(bm, src, cmap, transparent, copyWidth, copyHeight, frame->ImageDesc, 8, 4);  in blitInterlace()
174     copyInterlaceGroup(bm, src, cmap, transparent, copyWidth, copyHeight, frame->ImageDesc, 4, 2);  in blitInterlace()
176     copyInterlaceGroup(bm, src, cmap, transparent, copyWidth, copyHeight, frame->ImageDesc, 2, 1);  in blitInterlace()
192     GifWord copyHeight = frame->ImageDesc.Height;  in blitNormal()  local
193     if (frame->ImageDesc.Top + copyHeight > height) {  in blitNormal()
194         copyHeight = height - frame->ImageDesc.Top;  in blitNormal()
197     for (; copyHeight > 0; copyHeight--) {  in blitNormal()
215     GifWord copyHeight = height;  in fillRect()  local
216     if (top + copyHeight > bmHeight) {  in fillRect()
217         copyHeight = bmHeight - top;  in fillRect()
220     for (; copyHeight > 0; copyHeight--) {  in fillRect()