summaryrefslogtreecommitdiffstats
path: root/video/out/gl_common.c
Commit message (Collapse)AuthorAgeFilesLines
* vo_opengl: better probe handlingwm42014-12-191-38/+39
| | | | | | | | | | | | | Involve detection of software renderers in the probing properly. Other VOs could handle probing also more gracefully, and e.g. produce less noise if an API is unavailable. (Although other than the OpenGL VOs, only vo_wayland will.) Now the "sw" suboption for vo_opengl[_old] is strictly speaking not needed anymore. Doing "--vo=opengl" disables the probing logic, and will always force it, if possible. Includes some simplifications as well.
* vo_opengl: add GLES 2 supportwm42014-12-191-7/+10
| | | | | | | | Rather basic support. Almost nothing works, and even if it does, it's bound to be inefficient (due to texture upload). This was tested with the nVidia desktop binary drivers, which provide GLES 2 support only. However, nVidia is not known to be very strict about OpenGL, and the driver is very new too, so the vo_opengl code will have bugs too.
* vo_opengl: mess with PixelStorei state managementwm42014-12-191-31/+40
| | | | | | | | | | | | | | | | This is needed for GLES 2 support. GLES 2 doesn't support GL_UNPACK_ROW_LENGTH, and we shouldn't even use this constant, since a GLES implementation could raise an error. So set it only if neccessary, and leave it in the default state otherwise. This also smuggles in a ES 2 fallback for glUploadTex(), and querying an extension relevant for ES 2. For the alignment state (GL_[UN]PACK_ALIGNMENT) do the same for symmetry. All 4 states (alignment/rows x pack/unpack) are now assumed to be in their initial states by default. Also redo the PixelStorei handling in the function table. I could rebase this, but look at the commit time.
* vo_opengl: disable some unavailable features under ESwm42014-12-191-1/+4
| | | | There are probably many more which I overlooked.
* vo_opengl: clean up GL ES function loadingwm42014-12-181-86/+114
| | | | | | | | | | | | | | | | | | Previously, this was sort of messed together with desktop OpenGL loading. Add explicit support for ES, and clean up the mess. Also sort the function arrays alphabetically (at least most of them). In some cases, add functions to multiple sections. This keeps the number of sections down. Don't check for GL_ARB_vertex_array_object. This feature must be used in OpenGL 3 core, while it may be not available at all in earlier versions, and not using it if it's available as extension only has no advantages. This commit also considers GLES 2, because actual support for it will be added with a later commit. Also get rid of some MPGL_VER() uses (see some commits ago).
* vo_opengl: do not use 4x3 matrixwm42014-12-181-11/+4
| | | | | | | | | | | This was a nice trick to get the mpv colormatrix directly into OpenGL, because the memory representation happened to match. Unfortunately, OpenGL ES 2 doesn't have glUniformMatrix4x3fv(). Even more unfortunately, the memory representation is now incompatible. It would be nice to change it, but that would mean getting into a big mess.
* vo_opengl: simplify some aspects of the GL function loaderwm42014-12-181-16/+14
|
* vo_opengl: minor simplification in function loaderwm42014-12-181-11/+5
| | | | Don't force every entries without functions to define a dummy array.
* vo_opengl: don't assume legacy OpenGL is available with GLESwm42014-12-171-1/+1
| | | | | | OpenGL 3.0 has the weird situation that it's "hard" to detect whether legacy GL is really present. Since we pretend that we have OpenGL 3.0 if we use GLES, it was assuming legacy GL is available.
* vo_opengl: GLES 3 supportwm42014-12-171-11/+32
| | | | | | | | | | | | Tested with MESA on software emulation. Seems to work well, although the default FBO format in opengl-hq disables most interesting features. I have no idea how well it will work on real hardware (or if it does at all). Unfortunately, some features, including playback of 10 bit video, are not supported. Not sure what to do about this. GLES 2 or 1 do not work.
* vo_opengl: remove quadbuffer/anaglyph stereo 3D renderingwm42014-12-151-86/+0
| | | | | | | | Obscure feature, and I've never heard of anyone using it. The anaglyph effects can be reproduced with vf_stereo3d. The only thing that can't be reproduced with it is "quadbuffer", which requires special and expensive hardware.
* vo_opengl: fix linkage typewm42014-12-091-1/+1
| | | | Can happen on Windows, I suppose.
* vo_opengl: don't crash if framebuffers are not availablewm42014-12-091-0/+9
| | | | | | | | | | | In theory, vo_opengl supports operation without framebuffers. But this has been broken for a while now (commit cc00b3ff is a contender). It crashed because it unconditionally called gl->BindFramebuffer() (which is NULL if framebuffers are missing). Since this function is actually only called to set the default framebuffer, the simplest way to deal with this is to provide a dummy function, insteas of uglifying the code with additional if branches.
* client API: expose OpenGL rendererwm42014-12-091-6/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* vo_opengl: move hwdec parts into their own fileswm42014-12-031-17/+0
| | | | | | This wasn't done before because there was no advantage in "abstracting" it. This changed, and putting this into its own files is better than messing it into gl_common.c/h.
* gl_common: factor context creationwm42014-11-261-5/+16
| | | | | | | Always create the context in mpgl_init(), instead of doing it when mpgl_config_window() is called the first time. This is a small step towards cleaning up the GL backend interface, and adding other things like perhaps GLES support, or a callback-driven backend for libmpv.
* vo_opengl: minimal EGL on X11 supportwm42014-11-041-0/+3
| | | | | | Pretty useless and only good for testing. Does not include any form of GLES support.
* Add some missing "const"swm42014-10-101-1/+1
| | | | | | | The one in msg.c was mistakenly removed with commit e99a37f6. I didn't actually test the change in ao_sndio.c (but obviously "ap" shouldn't be static).
* vo_opengl: don't pass (char*)NULL as %s printf argumentwm42014-08-281-2/+3
| | | | | | glGetString(GL_SHADING_LANGUAGE_VERSION) can return NULL; I suppose this happens on legacy OpenGL, while all the other fields are guaranteed to exist.
* vo_opengl: don't cut off feature list outputwm42014-08-251-1/+1
|
* gl_common: add SGI_video_sync extensionwm42014-08-151-0/+8
|
* Remove some mp_msg calls with no trailing \nwm42014-07-131-2/+4
| | | | | | | The final goal is all mp_msg calls produce complete lines. We want this because otherwise, race conditions could corrupt the terminal output, and it's inconvenient for the client API too. This commit works towards this goal. There's still code that has this not fixed yet, though.
* Audit and replace all ctype.h useswm42014-07-011-1/+0
| | | | | | | | | | | | | | | | Something like "char *s = ...; isdigit(s[0]);" triggers undefined behavior, because char can be signed, and thus s[0] can be a negative value. The is*() functions require unsigned char _or_ EOF. EOF is a special value outside of unsigned char range, thus the argument to the is*() functions can't be a char. This undefined behavior can actually trigger crashes if the implementation of these functions e.g. uses lookup tables, which are then indexed with out-of-range values. Replace all <ctype.h> uses with our own custom mp_is*() functions added with misc/ctype.h. As a bonus, these functions are locale-independent. (Although currently, we _require_ C locale for other reasons.)
* video: introduce failure path for image allocationswm42014-06-171-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Until now, failure to allocate image data resulted in a crash (i.e. abort() was called). This was intentional, because it's pretty silly to degrade playback, and in almost all situations, the OOM will probably kill you anyway. (And then there's the standard Linux overcommit behavior, which also will kill you at some point.) But I changed my opinion, so here we go. This change does not affect _all_ memory allocations, just image data. Now in most failure cases, the output will just be skipped. For video filters, this coincidentally means that failure is treated as EOF (because the playback core assumes EOF if nothing comes out of the video filter chain). In other situations, output might be in some way degraded, like skipping frames, not scaling OSD, and such. Functions whose return values changed semantics: mp_image_alloc mp_image_new_copy mp_image_new_ref mp_image_make_writeable mp_image_setrefp mp_image_to_av_frame_and_unref mp_image_from_av_frame mp_image_new_external_ref mp_image_new_custom_ref mp_image_pool_make_writeable mp_image_pool_get mp_image_pool_new_copy mp_vdpau_mixed_frame_create vf_alloc_out_image vf_make_out_image_writeable glGetWindowScreenshot
* Add more constwm42014-06-111-25/+25
| | | | | | | While I'm not very fond of "const", it's important for declarations (it decides whether a symbol is emitted in a read-only or read/write section). Fix all these cases, so we have writeable global data only when we really need.
* gl_common: remove dlsym() fallbackwm42014-05-311-21/+1
| | | | See previous commits.
* gl_x11: always require some GLX API functions, avoid dlsym()wm42014-05-311-1/+1
| | | | | | | | | | | | | | The functions glXGetProcAddressARB() and glXQueryExtensionsString() were loaded using dlsym(). This could fail when compiling to libmpv, because then dlopen(NULL, ...) will look in the main program's list of libraries, and the libGL linked to libmpv is never considered. (Don't know if this somehow could be worked around.) The result is that using vo_opengl with libmpv can fail. Avoid this by not using dlsym(). glXGetProcAddressARB() was already used directly in the same file, and that never caused any problems. (Still add it to the configure test.) glXQueryExtensionsString() is documented as added in GLX 1.1 - that's ancient.
* gl_common: minor cosmetic changeswm42014-05-261-10/+9
| | | | Why are you reading this message.
* gl_common: correct a typewm42014-05-261-1/+1
| | | | | | | We pass a pointer to a GLint to sscanf, using the %d format. That format _always_ takes int, and not GLint (whatever the heck that is). If GLint is always int, then it doesn't make a difference, but is still better because it doesn't play russian roulette with pointers.
* vo_opengl: always dynamically load OpenGL symbolswm42014-05-261-64/+59
| | | | | | | | | | | | | | Don't emit "hard" references to OpenGL functions. Always use the platform specific function to lookup OpenGL functions, such as glXGetProcAddress() with GLX (x11). This actually fixes the build if only Wayland is enabled (e.g. using --disable-gl-x11 on Linux). Note that some sources claim that wglGetProcAddress() (win32) does not return function pointers for OpenGL 1.1 functions (even if they are valid and necessary in OpenGL 3.0). But if that happens, the fallback employed in gl_w32.c/w32gpa() should catch this.
* video/out: remove unused config() parameterswm42014-05-071-3/+2
| | | | This was cleaned up yesterday.
* msg: rename mp_msg_log -> mp_msgwm42013-12-211-19/+19
| | | | Same for companion functions.
* msg: convert defines to enumwm42013-12-211-1/+1
| | | | Also get rid of MSGL_HINT and the many MSGL_DBG* levels.
* m_option: add mp_log callback to OPT_STRING_VALIDATE optionswm42013-12-211-5/+5
| | | | | And also convert a bunch of other code, especially ao_wasapi and ao_portaudio.
* Move options/config related files from mpvcore/ to options/wm42013-12-171-2/+2
| | | | | | | | | Since m_option.h and options.h are extremely often included, a lot of files have to be changed. Moving path.c/h to options/ is a bit questionable, but since this is mainly about access to config files (which are also handled in options/), it's probably ok.
* vo_opengl: support for vda hardware decodingStefano Pigozzi2013-12-021-0/+4
| | | | | | | | | | | The harder work was done in the previous commits. After that this feature comes out almost for free. The only problem is I can't get the textures created with CGLTexImageIOSurface2D to download properly, thus the code performs download using some CoreVideo APIs. If someone knows why download of textures created with CGLTexImageIOSurface2D doesn't work please contact me :)
* gl_video: support packed YUV formats with Apple extensionsStefano Pigozzi2013-12-021-0/+11
| | | | | | | | | | This adds support for packed YUV formats (YUVY and UYVY) using the extension GL_APPLE_rgb_422. While supporting this formats on their own is not that important (considering most video is planar YUV) they are used for interoperability with IOSurfaces. Next commit will use this formats to render VDA hardware decoded frames through IOSurface and OpenGL interoperability.
* Rename sub.c/.h to osd.c/.hwm42013-11-241-2/+0
| | | | | This was way too misleading. osd.c merely calls the subtitle renderers, instead of actually dealing with subtitles.
* gl_common: print SW renderer warning only if it was the only reason we ↵wm42013-11-141-1/+1
| | | | rejected it
* vo_opengl: fix alpha values written to the framebufferwm42013-11-101-0/+2
| | | | | | | | | | | | | | | | | | | | | | | When blending OSD and subtitles onto the video, we write bogus alpha values. This doesn't normally matter, because these values are normally unused and discarded. But at least on Wayland, the alpha values are used by the compositor and leads to transparent windows even with opaque video on places where the OSD happens to use transparency. (Also see github issue #338.) Until now, the alpha basically contained garbage. The source factor GL_SRC_ALPHA meant that alpha was multiplied with itself. Use GL_ONE instead (which is why we have to use glBlendFuncSeparate()). This should give correct results, even with video that has alpha. (Or at least it's something close to correct, I haven't thought too hard how the compositor will blend it, and in fact I couldn't manage to test it.) If glBlendFuncSeparate() is not available, fall back to glBlendFunc(), which does the same as the code did before this commit. Technically, we support GL 1.1, but glBlendFuncSeparate is 1.4, and I guess we should try not to crash if vo_opengl_old runs on a system with GL 1.1 drivers only.
* vo_opengl: support for vdpau hardware decodingwm42013-11-051-0/+21
| | | | | | | | | | | | This uses vdpau OpenGL interop to convert a vdpau surface to a texture. Note that this is a bit weak and primitive. Deinterlacing (or any other form of vdpau postprocessing) is not supported. vo_opengl chroma scaling and chroma sample position are not supported. Internally, the vdpau video surfaces are converted to a RGBA surface first, because using the video surfaces directly is too complicated. (These surfaces are always split into separate fields, and the vo_opengl core expects progressive frames or frames with weaved fields.)
* Merge branch 'master' into have_configurewm42013-11-041-0/+9
|\ | | | | | | | | Conflicts: configure
| * vo_opengl: add support for VA-API OpenGL interopwm42013-11-041-0/+5
| | | | | | | | | | | | | | | | VA-API's OpenGL/GLX interop is pretty bad and perhaps slow (renders a X11 pixmap into a FBO, and has to go over X11, probably involves one or more copies), and this code serves more as an example, rather than for serious use. On the other hand, this might be work much better than vo_vaapi, even if slightly slower.
| * vo_opengl: add infrastructure for hardware decoding OpenGL interopwm42013-11-041-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | Most hardware decoding APIs provide some OpenGL interop. This allows using vo_opengl, without having to read the video data back from GPU. This requires adding a backend for each hardware decoding API. (Each backend is an entry in gl_hwdec_vaglx[].) The backends expose video data as a set of OpenGL textures. Add infrastructure to support this. The next commit will add support for VA-API.
* | configure: uniform the defines to #define HAVE_xxx (0|1)Stefano Pigozzi2013-11-031-6/+6
|/ | | | | | | | | | | | | | | | | | | | | The configure followed 5 different convetions of defines because the next guy always wanted to introduce a new better way to uniform it[1]. For an hypothetic feature 'hurr' you could have had: * #define HAVE_HURR 1 / #undef HAVE_DURR * #define HAVE_HURR / #undef HAVE_DURR * #define CONFIG_HURR 1 / #undef CONFIG_DURR * #define HAVE_HURR 1 / #define HAVE_DURR 0 * #define CONFIG_HURR 1 / #define CONFIG_DURR 0 All is now uniform and uses: * #define HAVE_HURR 1 * #define HAVE_DURR 0 We like definining to 0 as opposed to `undef` bcause it can help spot typos and is very helpful when doing big reorganizations in the code. [1]: http://xkcd.com/927/ related
* gl_common: suggest --vo=opengl-old if OpenGL 2.1 missingwm42013-10-261-1/+6
| | | | | | | If the caller requests at least OpenGL 2.1 (which --vo=opengl does), but we get OpenGL 1.x, suggest using opengl-old. Based on a patch by pfor on IRC.
* gl_common: add wayland backend before x11 backendAndreas Sinz2013-09-161-3/+5
|
* gl_common: signal to GL backend whether we are probingwm42013-09-161-4/+7
| | | | | | | | | | | This is supposed to reduce the amount of useless error messages shown during initialization of vo_opengl. If multiple backends are compiled, usually only one of them will work. For example, on Linux both X and Wayland backends can be compiled, but usually either Wayland or X is running. Then, if Wayland is not running, but X is, trying to initialize the Wayland backend should not spam the terminal with error messages. Signed-off-by: Andreas Sinz <andreas.sinz@aon.at>
* gl_common: complete mp_msg conversionwm42013-09-121-29/+28
| | | | Hopefully this works on Wayland and Cocoa, which I didn't test.
* core: move contents to mpvcore (2/2)Stefano Pigozzi2013-08-061-2/+2
| | | | Followup commit. Fixes all the files references.
* video/out: use new mp_msg stuff for vo.c and vo_openglwm42013-07-311-2/+2
| | | | The first step; also serves as example.
* vo_opengl: some option changeswm42013-07-221-0/+8
| | | | | | Doing "mpv --vo=opengl:lscale=help" now lists possible scalers and exits. The "backend" suboption behaves similar. Make the "stereo" suboption a choice, instead of using magic integer values.
* vo_opengl_old: use new option APIwm42013-07-221-0/+8
|
* gl_common: fix invalid alignmentwm42013-05-301-2/+2
| | | | | | | | 0 is invalid. The intention of the code turning off any additional alignment, so we need 1. Change a comment: obviously we don't try to set alignment parameters etc.to handle stride correctly, and instead do everything by row.
* gl_video: improve ditheringwm42013-05-261-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | Use a different algorithm to generate the dithering matrix. This looks much better than the previous ordered dither matrix with its cross-hatch artifacts. The matrix generation algorithm as well as its implementation was contributed by Wessel Dankers aka Fruit. The code in dither.c is his implementation, reformatted and with static global variables removed by me. The new matrix is uploaded as float texture - before this commit, it was a normal integer fixed point matrix. This means dithering will be disabled on systems without float textures. The size of the dithering matrix can be configured, as the matrix is generated at runtime. The generation of the matrix can take rather long, and is already unacceptable with size 8. The default is at 6, which takes about 100 ms on a Core2 Duo system with dither.c compiled at -O2, which I consider just about acceptable. The old ordered dithering is still available and can be selected by putting the dither=ordered sub-option. The ordered dither matrix generation code was moved to dither.c. This function was originally written by Uoti Urpala.