diff options
| -rw-r--r-- | docs/envvars.html | 1 | ||||
| -rw-r--r-- | src/mesa/main/bufferobj.c | 22 |
2 files changed, 23 insertions, 0 deletions
diff --git a/docs/envvars.html b/docs/envvars.html index 5bb7b1e65bb..ba83335d0b0 100644 --- a/docs/envvars.html +++ b/docs/envvars.html @@ -96,6 +96,7 @@ 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> diff --git a/src/mesa/main/bufferobj.c b/src/mesa/main/bufferobj.c index 3d93cf826b2..dba6934bac4 100644 --- a/src/mesa/main/bufferobj.c +++ b/src/mesa/main/bufferobj.c @@ -32,6 +32,7 @@ #include <stdbool.h> #include <inttypes.h> /* for PRId64 macro */ +#include "util/debug.h" #include "glheader.h" #include "enums.h" #include "hash.h" @@ -521,6 +522,24 @@ _mesa_reference_buffer_object_(struct gl_context *ctx, /** + * Get the value of MESA_NO_MINMAX_CACHE. + */ +static bool +get_no_minmax_cache() +{ + static bool read = false; + static bool disable = false; + + if (!read) { + disable = env_var_as_boolean("MESA_NO_MINMAX_CACHE", false); + read = true; + } + + return disable; +} + + +/** * Initialize a buffer object to default values. */ void @@ -533,6 +552,9 @@ _mesa_initialize_buffer_object(struct gl_context *ctx, obj->RefCount = 1; obj->Name = name; obj->Usage = GL_STATIC_DRAW_ARB; + + if (get_no_minmax_cache()) + obj->UsageHistory |= USAGE_DISABLE_MINMAX_CACHE; } |