diff options
Diffstat (limited to 'src/glsl/ast_to_hir.cpp')
| -rw-r--r-- | src/glsl/ast_to_hir.cpp | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/src/glsl/ast_to_hir.cpp b/src/glsl/ast_to_hir.cpp index 73825760ed8..12c691a2d72 100644 --- a/src/glsl/ast_to_hir.cpp +++ b/src/glsl/ast_to_hir.cpp @@ -2181,6 +2181,41 @@ validate_explicit_location(const struct ast_type_qualifier *qual, { bool fail = false; + /* Checks for GL_ARB_explicit_uniform_location. */ + if (qual->flags.q.uniform) { + if (!state->check_explicit_uniform_location_allowed(loc, var)) + return; + + const struct gl_context *const ctx = state->ctx; + unsigned max_loc = qual->location + var->type->uniform_locations() - 1; + + /* ARB_explicit_uniform_location specification states: + * + * "The explicitly defined locations and the generated locations + * must be in the range of 0 to MAX_UNIFORM_LOCATIONS minus one." + * + * "Valid locations for default-block uniform variable locations + * are in the range of 0 to the implementation-defined maximum + * number of uniform locations." + */ + if (qual->location < 0) { + _mesa_glsl_error(loc, state, + "explicit location < 0 for uniform %s", var->name); + return; + } + + if (max_loc >= ctx->Const.MaxUserAssignableUniformLocations) { + _mesa_glsl_error(loc, state, "location(s) consumed by uniform %s " + ">= MAX_UNIFORM_LOCATIONS (%u)", var->name, + ctx->Const.MaxUserAssignableUniformLocations); + return; + } + + var->data.explicit_location = true; + var->data.location = qual->location; + return; + } + /* Between GL_ARB_explicit_attrib_location an * GL_ARB_separate_shader_objects, the inputs and outputs of any shader * stage can be assigned explicit locations. The checking here associates |