This reverts commit 375f5ec5.

This patch was accidentally pushed.

Bill Spitzak authored 8 years ago and Søren Sandmann committed 8 years ago

This is very useful for comparing the results of SEPARABLE_CONVOLUTION
with BILINEAR and NEAREST.

v14: Removed good/best items
v15: Skip filter generation so gnuplot output continues showing previous value

Signed-off-by: Bill Spitzak <spitzak@gmail.com>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>

Bill Spitzak authored 8 years ago and Søren Sandmann committed 8 years ago

Signed-off-by: Bill Spitzak <spitzak@gmail.com>
Reviewed-by: Søren Sandmann <soren.sandmann@gmail.com>

Bill Spitzak authored 8 years ago and Søren Sandmann committed 8 years ago

It now shows the initial value of 4 when the demo is started

Signed-off-by: Bill Spitzak <spitzak@gmail.com>
Reviewed-by: Søren Sandmann <soren.sandmann@gmail.com>

The separable convolution filter supports a subsample_bits of 0 which
corresponds to no subsampling at all, so allow this value to be used
in the scale demo.

For large upscalings the level of subsampling for the filter has a
quite visible effect, so make it settable in the UI so that people can
experiment with various values.

This program allows interactively scaling and rotating images with
using various filters and repeat modes. It uses
pixman_filter_create_separate_convolution() to generate the filters.