Commit graph

5 commits

Author SHA1 Message Date
Matthew Waters
93f7e993ad [603/906] update FSF address 2014-03-15 18:36:50 +01:00
Filippo Argiolas
17a33cd19a [453/906] blur: give up some accuracy for speed
Settle with 7x7 gaussian convolution kernels, maybe slightly less
accurate than previous 9x9 but fast enough to be able to use it on i915.
About a 20% percent speed gain (again, roughly measured with
videotestsrc and glimagesink sync=false). No noticeable rendering
difference with current effects.
2014-03-15 18:36:41 +01:00
Filippo Argiolas
98752e51da [423/906] convolution: generate gaussian kernel on the fly
Generate a normalized gaussian kernel with given size and standard
deviation on the fly.
Remove "norm_const" uniform from convolution shaders and provide a
normalized kernel instead. Remove norm_offset uniform as it was always
zero, will reintroduce it if really needed in the future. Thanks to Eric
Anholt for suggesting it.
Save some ALU instruction calculating directly the coordinate for
texture lookup instead of summing an offset.
Still exceed maximum indirect texture lookups on i915, the only solution
I see is using a 3x3 kernel.
2014-03-15 18:36:39 +01:00
Filippo Argiolas
d02a585e7b [395/906] differencematte: fix regressions from gdkpixbuf to libpng migration
The background image needs to be scaled to fit current texture size.
Previously this was done by gdk_pixbuf_scale_simple but that's been
removed.
Create a texture from the background pixbuf with correct dimensions and
use interpolation shader to scale it to the right size. Interpolation
fragment shader doesn't have too much sense if all the textures don't
have the same size so this seemed the most natural place to do the
scaling. It could probably be done with some custom texture mapping
outside the shader but it involved more code.

Fixes bug #599883.
2014-03-15 18:36:37 +01:00
Tim-Philipp Müller
6516ecb3cc [366/906] docs: make remaining elements show up in docs
Split out declarations into header files and hook everything up so
that five more elements show up in the plugin docs. Fixes #559135.
2014-03-15 18:36:36 +01:00