diff options
Diffstat (limited to 'src/compiler/nir/nir_lower_io.c')
| -rw-r--r-- | src/compiler/nir/nir_lower_io.c | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/src/compiler/nir/nir_lower_io.c b/src/compiler/nir/nir_lower_io.c index 72f1b05..c25790a 100644 --- a/src/compiler/nir/nir_lower_io.c +++ b/src/compiler/nir/nir_lower_io.c @@ -43,10 +43,18 @@ struct lower_io_state { void nir_assign_var_locations(struct exec_list *var_list, unsigned *size, + unsigned base_offset, int (*type_size)(const struct glsl_type *)) { unsigned location = 0; + /* There are 32 regular and 32 patch varyings allowed */ + int locations[64][2]; + for (unsigned i = 0; i < 64; i++) { + for (unsigned j = 0; j < 2; j++) + locations[i][j] = -1; + } + nir_foreach_variable(var, var_list) { /* * UBO's have their own address spaces, so don't count them towards the @@ -56,8 +64,24 @@ nir_assign_var_locations(struct exec_list *var_list, unsigned *size, var->interface_type != NULL) continue; - var->data.driver_location = location; - location += type_size(var->type); + /* Make sure we give the same location to varyings packed with + * ARB_enhanced_layouts. + */ + int idx = var->data.location - base_offset; + if (base_offset && idx >= 0) { + assert(idx < ARRAY_SIZE(locations)); + + if (locations[idx][var->data.index] == -1) { + var->data.driver_location = location; + locations[idx][var->data.index] = location; + location += type_size(var->type); + } else { + var->data.driver_location = locations[idx][var->data.index]; + } + } else { + var->data.driver_location = location; + location += type_size(var->type); + } } *size = location; |