Bug#786576: mpv: --vo=opengl-old:rectangle=1 fails to render OSD

[Yuriy M. Kaminskiy]

Package: mpv
Version: 0.6.2-2
Severity: normal

Dear Maintainer,

mpv --vo=opengl-old fails to render OSD (draws empty rectangles instead) 
when sub-option rectangle is 1 (it is set to 1 by default on some 
video-cards [with mesa ATI r200 driver], otherwise can be enabled by 
--vo=opengl-old:rectangle=1).
OSD rendering assumes GL_TEXTURE_2D was glEnable'd, while with this 
sub-option video rendering glEnable(GL_TEXTURE_RECTANGLE) (which has 
higher priority).
Attached patch (tested, seems to work) mitigates this by temporarily 
switching texture targets when rendering OSD.

Notes:
1) This bug does not affect testing and upstream (--vo=opengl-old was 
completely removed since mpv-0.8), only jessie is affected;
2) --vo=opengl-old is not used by default, however, it was suggested by 
mpv for very old videocards that lacks OpenGL-2.0, and on some of such 
cards rectangle suboption is enabled by default.

-- System Information:
Debian Release: 8.0
    APT prefers stable-updates
    APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: i386 (i686)

Kernel: Linux 3.16.0-4-686-pae (SMP w/1 CPU core)
Locale: LANG=ru_RU.KOI8-R, LC_CTYPE=ru_RU.KOI8-R (charmap=KOI8-R)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages mpv depends on:
ii  libasound2                              1.0.28-1
ii  libass5                                 0.10.2-3
ii  libavcodec56                            6:11.3-1
ii  libavdevice55                           6:11.3-1
ii  libavfilter5                            6:11.3-1
ii  libavformat56                           6:11.3-1
ii  libavresample2                          6:11.3-1
ii  libavutil54                             6:11.3-1
ii  libbluray1                              1:0.6.2-1
ii  libbs2b0                                3.1.0+dfsg-2.1
ii  libc6                                   2.19-18
ii  libcdio-cdda1                           0.83-4.2
ii  libcdio-paranoia1                       0.83-4.2
ii  libcdio13                               0.83-4.2
ii  libdvdnav4                              5.0.1-1
ii  libdvdread4                             5.0.0-1
ii  libegl1-mesa [libegl1-x11]              10.3.2-1
ii  libenca0                                1.16-1
ii  libgl1-mesa-glx [libgl1]                10.3.2-1
ii  libguess1                               1.2-1
ii  libjack-jackd2-0 [libjack-0.116] 1.9.10+20140719git3eb0ae6a~dfsg-2
ii  libjpeg62-turbo                         1:1.3.1-12
ii  liblcms2-2                              2.6-3+b3
ii  liblircclient0                          0.9.0~pre1-1.2
ii  liblua5.2-0                             5.2.3-1.1
ii  libmpg123-0                             1.20.1-2
ii  libpulse0                               5.0-13
ii  libquvi7                                0.4.1-3
ii  libsdl2-2.0-0                           2.0.2+dfsg1-6
ii  libswscale3                             6:11.3-1
ii  libuuid1                                2.25.2-6
ii  libva-glx1                              1.4.1-1
ii  libva-x11-1                             1.4.1-1
ii  libva1                                  1.4.1-1
ii  libvdpau1                               0.8-3
ii  libwayland-client0                      1.6.0-2
ii  libwayland-cursor0                      1.6.0-2
ii  libwayland-egl1-mesa [libwayland-egl1]  10.3.2-1
ii  libx11-6                                2:1.6.2-3
ii  libxext6                                2:1.3.3-1
ii  libxinerama1                            2:1.1.3-1+b1
ii  libxkbcommon0                           0.4.3-2
ii  libxrandr2                              2:1.4.2-1+b1
ii  libxss1                                 1:1.2.2-1
ii  libxv1                                  2:1.0.10-1+b1
ii  zlib1g                                  1:1.2.8.dfsg-2+b1

mpv recommends no packages.

mpv suggests no packages.

-- no debconf information

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