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* vo_opengl: remove requirement for RG textureswm42014-12-161-1/+1
| | | | | Features not supported are disabled (although with a misleading error message).
* vo: fix some nonsensewm42014-12-101-4/+6
| | | | | | | | | Commit d38bc531 is incorrect: the 50ms queue-ahead value and the flip queue offset have different functions. The latter is about calling flip_page in advance, so the change attempted to show video frames 50ms in advance on all VOs. The change was for vo_opengl_cb, but that can be handled differently.
* vo_opengl_cb: simplify reconfigure, render transparent if unconfiguredwm42014-12-091-14/+13
| | | | | | | I think that's expected; mpv shouldn't draw anything while no video is active. This doesn't blend transparently, though. Also document the vo_opengl_cb thing.
* client API: expose OpenGL rendererwm42014-12-091-0/+370
This adds API to libmpv that lets host applications use the mpv opengl renderer. This is a more flexible (and possibly more portable) option to foreign window embedding (via --wid). This assumes that methods like context sharing and multithreaded OpenGL rendering are infeasible, and that a way is needed to integrate it with an application that uses a single thread to render everything. Add an example that does this with QtQuick/qml. The example is relatively lazy, but still shows how relatively simple the integration is. The FBO indirection could probably be avoided, but would require more work (and would probably lead to worse QtQuick integration, because it would have to ignore transformations like rotation). Because this makes mpv directly use the host application's OpenGL context, there is no platform specific code involved in mpv, except for hw decoding interop. main.qml is derived from some Qt example. The following things are still missing: - a way to do better video timing - expose GL renderer options, allow changing them at runtime - support for color equalizer controls - support for screenshots