diff options
Diffstat (limited to 'src/compiler/glsl')
| -rw-r--r-- | src/compiler/glsl/glsl_to_nir.cpp | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/compiler/glsl/glsl_to_nir.cpp b/src/compiler/glsl/glsl_to_nir.cpp index 69d4c2b20c6..33f71bf416a 100644 --- a/src/compiler/glsl/glsl_to_nir.cpp +++ b/src/compiler/glsl/glsl_to_nir.cpp @@ -129,6 +129,19 @@ private: } /* end of anonymous namespace */ +static void +nir_remap_attributes(nir_shader *shader) +{ + nir_foreach_variable(var, &shader->inputs) { + var->data.location += _mesa_bitcount_64(shader->info->double_inputs_read & + BITFIELD64_MASK(var->data.location)); + } + + /* Once the remap is done, reset double_inputs_read, so later it will have + * which location/slots are doubles */ + shader->info->double_inputs_read = 0; +} + nir_shader * glsl_to_nir(const struct gl_shader_program *shader_prog, gl_shader_stage stage, @@ -146,6 +159,13 @@ glsl_to_nir(const struct gl_shader_program *shader_prog, nir_lower_constant_initializers(shader, (nir_variable_mode)~0); + /* Remap the locations to slots so those requiring two slots will occupy + * two locations. For instance, if we have in the IR code a dvec3 attr0 in + * location 0 and vec4 attr1 in location 1, in NIR attr0 will use + * locations/slots 0 and 1, and attr1 will use location/slot 2 */ + if (shader->stage == MESA_SHADER_VERTEX) + nir_remap_attributes(shader); + shader->info->name = ralloc_asprintf(shader, "GLSL%d", shader_prog->Name); if (shader_prog->Label) shader->info->label = ralloc_strdup(shader, shader_prog->Label); @@ -322,6 +342,14 @@ nir_visitor::visit(ir_variable *ir) var->data.compact = ir->type->without_array()->is_scalar(); } } + + /* Mark all the locations that require two slots */ + if (glsl_type_is_dual_slot(glsl_without_array(var->type))) { + for (uint i = 0; i < glsl_count_attribute_slots(var->type, true); i++) { + uint64_t bitfield = BITFIELD64_BIT(var->data.location + i); + shader->info->double_inputs_read |= bitfield; + } + } break; case ir_var_shader_out: |