1 Movit 1.3.1, February 15th, 2016
3 - Fix an issue where certain effect chains (particularly involving
4 out-of-tree effects that return only a constant color) could cause
5 texture coordinates not to be set properly. (The new code probably
6 also has slightly lower OpenGL driver overhead.) Reported by
10 Movit 1.3.0, January 31st, 2016
12 - Movit now requires GLSL 1.30 (so a driver from 2008 or later);
13 before, it claimed to support 1.10, but actually used 1.30 features.
14 Note that some OpenGL drivers, in particular on OS X, only supports
15 GLSL 1.30 (actually, 1.50) if you have an OpenGL core context.
17 - Add a deinterlacer, based on YADIF.
19 - Allow parallel output to RGBA and Y'CbCr textures at the same time.
21 - Make FlatInput and YCbCrInput support taking in external OpenGL
22 textures. Also allow them to change width/height after instantiation.
24 - Various compatibility and performance fixes. In particular,
25 fp16 conversion on older (non-Haswell) CPUs is much faster, due to
26 new conversion code by Fabian Giesen.
29 Movit 1.2.0, September 24th, 2015
31 - Movit now ships a version.h with a #define MOVIT_VERSION that
32 increases on every API change, including in git. (The number
33 itself carries no semantic meaning beyond this.) Movit 1.2.0
34 is not API or ABI compatible with 1.1.x, so there has been a
35 soname bump to libmovit.so.3.
37 - More flexible Y'CbCr input; in particular, a special input
38 for 4:2:2 interleaved data (UYVY), and support for semi-planar
39 input (Cb and Cr in the same texture, like in NV12). Note that
40 you should now also set the new “num_levels” member of
41 YCbYCbCrFormat to 256 (signifying 8-bit input), although
42 it is not used yet; this is a stepping stone towards supporting
43 10- and 12-bit Y'CbCr.
45 - Basic support for Y'CbCr _output_. Currently only 8-bit,
46 and only 4:4:4 (ie., you'll need to subsample yourself
47 afterwards). It is possible to split the output into multiple
48 textures, though, if you want a luma/chroma split (NV12-like)
51 - Support top-left origin for output. This is only really useful
52 if you are rendering directly into some memory area with top-left
53 origin; most users will get the expected behavior by using
54 bottom-left as before.
56 - Rework uniform handling for less OpenGL overhead. Note that
57 this means your effects now need to register uniforms in the
58 C++ code instead of declaring them in the .frag file.
60 - Make the PaddingEffect border subpixel-aware, and also support
61 an arbitrary (subpixel) border offset. This means that you can
62 compose PaddingEffect with an integral left/top offset
63 (use the new IntegralPaddingEffect for potentially more speed)
64 and ResampleEffect with a subpixel left/top offset (and zoom to
65 compensate) to get Lanczos interpolation for the pixels and a
66 simple bilinear interpolation for the border itself.
68 - Fix a bug that could cause very bad filter weights in
71 - Various performance improvements, in particular with regards to
72 CPU usage in ResampleEffect.
75 Movit 1.1.3, March 29th, 2015
77 - Fix accuracy issues in ResampleEffect, particularly when
78 zooming. Note that this might cost a few percent performance.
79 Reported by Christophe Thommeret.
81 - Make the number of BlurEffect taps configurable.
82 Based on patch by Christophe Thommeret.
84 - Multiple other bugfixes, some courtesy Dan Dennedy and
85 Christophe Thommeret. In particular, thread-safety fixes
86 related to locales and chain finalization.
89 Movit 1.1.2, August 12th, 2014
91 - Performance bugfix: Fix texture freelist behavior so that it's
92 LRU instead of the exact opposite. Patch by Christophe Thommeret.
94 - Performance bugfix: Correct the number of blur taps read in the
95 blur filter (it was reading about twice as many as it should).
96 Also found by Christophe Thommeret.
99 Movit 1.1.1, April 12th, 2014
101 - Fix an issue that could cause assertion failure in ResourcePool
102 when FBOs are reused, especially with NVIDIA's drivers.
105 Movit 1.1, April 10th, 2014
107 - NOTE: Movit now uses libepoxy rather than GLEW. This is needed because
108 of core context and GLES3 support (see below). Movit 1.1 should be
109 generally API-compatible with 1.0.3 (with the exception of the next
110 point), but is not ABI-compatible, so there has been a soname bump
113 - NOTE: The rules for using an EffectChain or ResourcePool in multiple
114 OpenGL contexts or threads have changed somewhat; see the comments in
117 - Movit will now work in OpenGL core contexts, and on GLES 3.0 or newer.
118 (GLES2 devices are not supported.) This also holds for all unit tests,
119 provided that you use SDL2 and not SDL1 (because SDL2 is needed to set
120 up such contexts). Note that the included demo application still requires
121 a classic OpenGL context.
123 - ResampleEffect can now do sub-pixel translate and/or zoom.
125 - LumaMixEffect now has an “invert” flag, as a convenience to e.g. change
126 a left-to-right wipe into a right-to-left one.
128 - Significant reduction in driver overhead, especially on NVIDIA drivers.
130 - Various smaller bugfixes and performance improvements.
133 Movit 1.0.3, March 16th, 2014
135 - Yet more build system tweaks mainly related to distribution packaging.
138 Movit 1.0.2, March 16th, 2014
140 - Make a few tweaks to “make install”, to make distributions' lives easier.
143 Movit 1.0.1, March 16th, 2014
145 - Fix so that shared libraries are built.
148 Movit 1.0, March 16th, 2014