| … | |
… | |
| 140 | $th >>= 1; |
140 | $th >>= 1; |
| 141 | } |
141 | } |
| 142 | |
142 | |
| 143 | # decide the amount of space used in the texture |
143 | # decide the amount of space used in the texture |
| 144 | my ($rw, $rh); |
144 | my ($rw, $rh); |
|
|
145 | my $render; |
| 145 | |
146 | |
| 146 | if ($self->{render_cb}) { |
147 | if ($self->{render_cb}) { |
| 147 | # use only part of the texture |
148 | # use only part of the texture |
| 148 | #$rw >>= 1 while $rw > $tw; |
149 | #$rw >>= 1 while $rw > $tw; |
| 149 | #$rh >>= 1 while $rh > $th; |
150 | #$rh >>= 1 while $rh > $th; |
| 150 | $rw = min $dw, $tw; |
151 | $rw = min $dw, $tw; |
| 151 | $rh = min $dh, $th; |
152 | $rh = min $dh, $th; |
|
|
153 | ++$render; |
| 152 | } else { |
154 | } else { |
| 153 | if ($self->{wrap} || $tw < $dw || $th < $dh) { |
155 | if ($self->{wrap} || $tw < $dw || $th < $dh) { |
| 154 | # scale to the full texture size |
156 | # scale to the full texture size |
| 155 | ($rw, $rh) = ($tw, $th); |
157 | ($rw, $rh) = ($tw, $th); |
|
|
158 | ++$render; |
| 156 | } else { |
159 | } else { |
| 157 | # pad |
160 | # pad |
| 158 | pad $data, $dw, $dh, $tw, $th; |
161 | pad $data, $dw, $dh, $tw, $th; |
| 159 | ($rw, $rh) = ($dw, $dh); |
162 | ($rw, $rh) = ($dw, $dh); |
| 160 | ($dw, $dh) = ($tw, $th); |
163 | ($dw, $dh) = ($tw, $th); |
| 161 | } |
164 | } |
| 162 | } |
165 | } |
| 163 | |
|
|
| 164 | # rendering means we need to scale in some way |
|
|
| 165 | my $render = $self->{render_cb} || $rw != $dw || $th != $dh; |
|
|
| 166 | |
166 | |
| 167 | if ($render) { |
167 | if ($render) { |
| 168 | glViewport 0, 0, $tw, $th; |
168 | glViewport 0, 0, $tw, $th; |
| 169 | glClear 0, 0, 0, 0; |
169 | glClear 0, 0, 0, 0; |
| 170 | glMatrixMode GL_PROJECTION; |
170 | glMatrixMode GL_PROJECTION; |
