X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=docs%2Fenvvars.html;h=6d79398e1dfb41f42a620d158d4d30422c6afa43;hb=04d93ea61968b5f163ad37048f07929c55c278e9;hp=bdfe9991a6c86e630e927de20092221b309bf7b7;hpb=005c8e01062e8e88a86904b955d5422742bd32e7;p=mesa.git diff --git a/docs/envvars.html b/docs/envvars.html index bdfe9991a6c..6d79398e1df 100644 --- a/docs/envvars.html +++ b/docs/envvars.html @@ -50,8 +50,17 @@ sometimes be useful for debugging end-user issues. if the application generates a GL_INVALID_ENUM error, a corresponding error message indicating where the error occurred, and possibly why, will be printed to stderr.
- If the value of MESA_DEBUG is 'FP' floating point arithmetic errors will - generate exceptions. + + For release builds, MESA_DEBUG defaults to off (no debug output). + + MESA_DEBUG accepts the following comma-separated list of named + flags, which adds extra behaviour to just set MESA_DEBUG=1: +
  • MESA_LOG_FILE - specifies a file name for logging all errors, warnings, etc., rather than stderr
  • MESA_TEX_PROG - if set, implement conventional texture env modes with @@ -91,11 +100,20 @@ This is only valid for versions >= 3.0.
  • Mesa may not really implement all the features of the given version. (for developers only) +
  • MESA_GLES_VERSION_OVERRIDE - changes the value returned by +glGetString(GL_VERSION) for OpenGL ES. +
  • 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)
  • MESA_GLSL - shading language compiler options +
  • MESA_NO_MINMAX_CACHE - when set, the minmax index cache is globally disabled. @@ -135,11 +153,10 @@ See the Xlib software driver page for details.
  • bat - emit batch information
  • pix - emit messages about pixel operations
  • buf - emit messages about buffer objects
    • -
  • reg - emit messages about regions
  • fbo - emit messages about framebuffers
  • fs - dump shader assembly for fragment shaders
  • gs - dump shader assembly for geometry shaders
    • -
  • sync - emit messages about synchronization
    • +
  • sync - after sending each batch, emit a message and wait for that batch to finish rendering
  • prim - emit messages about drawing primitives
  • vert - emit messages about vertex assembly
  • dri - emit messages about the DRI interface
    • @@ -154,6 +171,19 @@ See the Xlib software driver page for details.
  • blorp - emit messages about the blorp operations (blits & clears)
  • nodualobj - suppress generation of dual-object geometry shader code
  • optimizer - dump shader assembly to files at each optimization pass and iteration that make progress
    • +
  • ann - annotate IR in assembly dumps
    • +
  • no8 - don't generate SIMD8 fragment shader
    • +
  • vec4 - force vec4 mode in vertex shader
    • +
  • spill_fs - force spilling of all registers in the scalar backend (useful to debug spilling code)
    • +
  • spill_vec4 - force spilling of all registers in the vec4 backend (useful to debug spilling code)
    • +
  • cs - dump shader assembly for compute shaders
    • +
  • hex - print instruction hex dump with the disassembly
    • +
  • nocompact - disable instruction compaction
    • +
  • tcs - dump shader assembly for tessellation control shaders
    • +
  • tes - dump shader assembly for tessellation evaluation shaders
    • +
  • l3 - emit messages about the new L3 state during transitions
    • +
  • do32 - generate compute shader SIMD32 programs even if workgroup size doesn't exceed the SIMD16 limit
    • +
  • norbc - disable single sampled render buffer compression
    • @@ -179,6 +209,14 @@ Mesa EGL supports different sets of environment variables. See the
  • 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. +
  • GALLIUM_HUD_PERIOD - sets the hud update rate in seconds (float). Use zero + to update every frame. The default period is 1/2 second. +
  • GALLIUM_HUD_VISIBLE - control default visibility, defaults to true. +
  • 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 to toggle the hud as desired.
  • GALLIUM_LOG_FILE - specifies a file for logging all errors, warnings, etc. rather than stderr.
  • GALLIUM_PRINT_OPTIONS - if non-zero, print all the Gallium environment @@ -215,7 +253,7 @@ See src/mesa/state_tracker/st_debug.c for other options.
  • LP_PERF - a comma-separated list of options to selectively no-op various parts of the driver. See the source code for details.
  • 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. @@ -230,6 +268,31 @@ for details. +

    VA-API state tracker environment variables

    + + + +

    VC4 driver environment variables

    + + +

    Other Gallium drivers have their own environment variables. These may change frequently so the source code should be consulted for details.