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