diff options
Diffstat (limited to 'src/mesa')
| -rw-r--r-- | src/mesa/state_tracker/st_extensions.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c index 2dbda83ca10..d2660099fc1 100644 --- a/src/mesa/state_tracker/st_extensions.c +++ b/src/mesa/state_tracker/st_extensions.c @@ -223,8 +223,13 @@ void st_init_limits(struct pipe_screen *screen, pc->MaxUniformComponents = MIN2(pc->MaxUniformComponents, MAX_UNIFORMS * 4); + /* For ARB programs, prog_src_register::Index is a signed 13-bit number. + * This gives us a limit of 4096 values - but we may need to generate + * internal values in addition to what the source program uses. So, we + * drop the limit one step lower, to 2048, to be safe. + */ pc->MaxParameters = - pc->MaxNativeParameters = pc->MaxUniformComponents / 4; + pc->MaxNativeParameters = MIN2(pc->MaxUniformComponents / 4, 2048); pc->MaxInputComponents = screen->get_shader_param(screen, sh, PIPE_SHADER_CAP_MAX_INPUTS) * 4; pc->MaxOutputComponents = |