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edge tiles seems to be padded with zeros

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in correct order
This commit is contained in:
Artem Pavlenko 2005-02-27 15:52:05 +00:00
parent 4bffcae79d
commit d9c4988b9e
1 changed files with 5 additions and 7 deletions
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12
src/tiff_reader.cc
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@ -174,21 +174,19 @@ namespace mapnik
int start_y=(y0/tile_height_)*tile_height_;
int end_y=((y0+height)/tile_height_+1)*tile_height_;
bool bottomtiles=((unsigned)end_y > height_)?true:false;
int start_x=(x0/tile_width_)*tile_width_;
int end_x=((x0+width)/tile_width_+1)*tile_width_;
int row,tx0,tx1,ty0,ty1;
for (int y=start_y;y<end_y;y+=tile_height_)
{
ty0=std::max(y0,(unsigned)y)-y;
ty1=std::min(height+y0,(unsigned)(y+tile_height_))-y;
int n0=bottomtiles ? 0:(tile_height_-ty1);
int n1=bottomtiles ? (ty1-ty0-1):(tile_height_-ty0-1);
int n0=tile_height_-ty1;
int n1=tile_height_-ty0-1;
for (int x=start_x;x<end_x;x+=tile_width_)
{
@ -233,7 +231,7 @@ namespace mapnik
{
ty0=std::max(y0,y)-y;
ty1=std::min(height+y0,y+rows_per_strip_)-y;
memset(buf,0xff,width_*rows_per_strip_*sizeof(uint32));
if (!TIFFReadRGBAStrip(tif,y,buf)) break;
row=y+ty0-y0;