diff options
Diffstat (limited to 'src/mesa/state_tracker/st_extensions.c')
| -rw-r--r-- | src/mesa/state_tracker/st_extensions.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c index 90e78679e47..6cd74db897b 100644 --- a/src/mesa/state_tracker/st_extensions.c +++ b/src/mesa/state_tracker/st_extensions.c @@ -161,6 +161,13 @@ void st_init_limits(struct st_context *st) pc->MaxNativeTemps = screen->get_param(screen, PIPE_CAP_MAX_VS_TEMPS); pc->MaxNativeAddressRegs = screen->get_param(screen, PIPE_CAP_MAX_VS_ADDRS); pc->MaxNativeParameters = screen->get_param(screen, PIPE_CAP_MAX_VS_CONSTS); + + /* PIPE_CAP_MAX_FS_INPUTS specifies the number of COLORn + GENERICn inputs + * and is set in MaxNativeAttribs. It's always 2 colors + N generic + * attributes. The GLSL compiler never uses COLORn for varyings, so we + * subtract the 2 colors to get the maximum number of varyings (generic + * attributes) supported by a driver. */ + c->MaxVarying = screen->get_param(screen, PIPE_CAP_MAX_FS_INPUTS) - 2; } |