diff options
author | Jonathan Gray <jsg@cvs.openbsd.org> | 2016-05-29 10:22:51 +0000 |
---|---|---|
committer | Jonathan Gray <jsg@cvs.openbsd.org> | 2016-05-29 10:22:51 +0000 |
commit | c9223eed3c16cd3e98a8f56dda953d8f299de0e3 (patch) | |
tree | 53e2a1c3f13bcf6b4ed201d7bc135e7213c94ebe /lib/mesa/docs/envvars.html | |
parent | 6e8f2d062ab9c198239b9283b2b7ed12f4ea17d8 (diff) |
Import Mesa 11.2.2
Diffstat (limited to 'lib/mesa/docs/envvars.html')
-rw-r--r-- | lib/mesa/docs/envvars.html | 45 |
1 files changed, 44 insertions, 1 deletions
diff --git a/lib/mesa/docs/envvars.html b/lib/mesa/docs/envvars.html index c0d5a51b4..06aa0ac93 100644 --- a/lib/mesa/docs/envvars.html +++ b/lib/mesa/docs/envvars.html @@ -91,11 +91,20 @@ This is only valid for versions >= 3.0. <li> Mesa may not really implement all the features of the given version. (for developers only) </ul> +<li>MESA_GLES_VERSION_OVERRIDE - changes the value returned by +glGetString(GL_VERSION) for OpenGL ES. +<ul> +<li> The format should be MAJOR.MINOR +<li> Examples: 2.0, 3.0, 3.1 +<li> Mesa may not really implement all the features of the given version. +(for developers only) +</ul> <li>MESA_GLSL_VERSION_OVERRIDE - changes the value returned by glGetString(GL_SHADING_LANGUAGE_VERSION). Valid values are integers, such as "130". Mesa will not really implement all the features of the given language version if it's higher than what's normally reported. (for developers only) <li>MESA_GLSL - <a href="shading.html#envvars">shading language compiler options</a> +<li>MESA_NO_MINMAX_CACHE - when set, the minmax index cache is globally disabled. </ul> @@ -153,6 +162,7 @@ See the <a href="xlibdriver.html">Xlib software driver page</a> for details. <li>no16 - suppress generation of 16-wide fragment shaders. useful for debugging broken shaders</li> <li>blorp - emit messages about the blorp operations (blits & clears)</li> <li>nodualobj - suppress generation of dual-object geometry shader code</li> + <li>optimizer - dump shader assembly to files at each optimization pass and iteration that make progress</li> </ul> </ul> @@ -178,6 +188,14 @@ Mesa EGL supports different sets of environment variables. See the <li>GALLIUM_HUD - draws various information on the screen, like framerate, cpu load, driver statistics, performance counters, etc. Set GALLIUM_HUD=help and run e.g. glxgears for more info. +<li>GALLIUM_HUD_PERIOD - sets the hud update rate in seconds (float). Use zero + to update every frame. The default period is 1/2 second. +<li>GALLIUM_HUD_VISIBLE - control default visibility, defaults to true. +<li>GALLIUM_HUD_TOGGLE_SIGNAL - toggle visibility via user specified signal. + Especially useful to toggle hud at specific points of application and + disable for unencumbered viewing the rest of the time. For example, set + GALLIUM_HUD_VISIBLE to false and GALLIUM_HUD_SIGNAL_TOGGLE to 10 (SIGUSR1). + Use kill -10 <pid> to toggle the hud as desired. <li>GALLIUM_LOG_FILE - specifies a file for logging all errors, warnings, etc. rather than stderr. <li>GALLIUM_PRINT_OPTIONS - if non-zero, print all the Gallium environment @@ -214,7 +232,7 @@ See src/mesa/state_tracker/st_debug.c for other options. <li>LP_PERF - a comma-separated list of options to selectively no-op various parts of the driver. See the source code for details. <li>LP_NUM_THREADS - an integer indicating how many threads to use for rendering. - Zero turns of threading completely. The default value is the number of CPU + Zero turns off threading completely. The default value is the number of CPU cores present. </ul> @@ -229,6 +247,31 @@ for details. </ul> +<h3>VA-API state tracker environment variables</h3> +<ul> +<li>VAAPI_MPEG4_ENABLED - enable MPEG4 for VA-API, disabled by default. +</ul> + + +<h3>VC4 driver environment variables</h3> +<ul> +<li>VC4_DEBUG - a comma-separated list of named flags, which do various things: +<ul> + <li>cl - dump command list during creation</li> + <li>qpu - dump generated QPU instructions</li> + <li>qir - dump QPU IR during program compile</li> + <li>nir - dump NIR during program compile</li> + <li>tgsi - dump TGSI during program compile</li> + <li>shaderdb - dump program compile information for shader-db analysis</li> + <li>perf - print during performance-related events</li> + <li>norast - skip actual hardware execution of commands</li> + <li>always_flush - flush after each draw call</li> + <li>always_sync - wait for finish after each flush</li> + <li>dump - write a GPU command stream trace file (VC4 simulator only)</li> +</ul> +</ul> + + <p> Other Gallium drivers have their own environment variables. These may change frequently so the source code should be consulted for details. |