diff options
author | Kenneth Graunke <kenneth@whitecape.org> | 2013-08-30 23:11:55 -0700 |
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committer | Kenneth Graunke <kenneth@whitecape.org> | 2013-09-09 11:52:21 -0700 |
commit | 3e820e3aef382fed73b6b8128596424ed7690951 (patch) | |
tree | 4b8887c20fc7678133ff79b671a65a3f8060c1f7 /src/glsl/ir.h | |
parent | 0823a87a7520c79708d6990f761b871c41ebffdf (diff) |
glsl: Pass _mesa_glsl_parse_state into matching_signature and such.
During compilation, we'll use this to determine built-in availability.
The plan is to have a single shader containing every built-in in every
version of the language, but filter out the ones that aren't actually
available to the shader being compiled.
At link time, we don't actually need this filtering capability: we've
already imported prototypes for every built-in that the shader actually
calls, and they're flagged as is_builtin(). The linker doesn't import
any additional prototypes, so it won't pull in any unavailable
built-ins. When resolving prototypes to function definitions, the
linker ensures the values of is_builtin() match, which means that a
shader can't trick the linker into importing the body of an unavailable
built-in by defining a suspiciously similar prototype.
In other words, during linking, we can just pass in NULL. It will work
out fine.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
Diffstat (limited to 'src/glsl/ir.h')
-rw-r--r-- | src/glsl/ir.h | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/src/glsl/ir.h b/src/glsl/ir.h index bd1c12cd90a..c673aac416c 100644 --- a/src/glsl/ir.h +++ b/src/glsl/ir.h @@ -765,20 +765,23 @@ public: * Find a signature that matches a set of actual parameters, taking implicit * conversions into account. Also flags whether the match was exact. */ - ir_function_signature *matching_signature(const exec_list *actual_param, + ir_function_signature *matching_signature(_mesa_glsl_parse_state *state, + const exec_list *actual_param, bool *match_is_exact); /** * Find a signature that matches a set of actual parameters, taking implicit * conversions into account. */ - ir_function_signature *matching_signature(const exec_list *actual_param); + ir_function_signature *matching_signature(_mesa_glsl_parse_state *state, + const exec_list *actual_param); /** * Find a signature that exactly matches a set of actual parameters without * any implicit type conversions. */ - ir_function_signature *exact_matching_signature(const exec_list *actual_ps); + ir_function_signature *exact_matching_signature(_mesa_glsl_parse_state *state, + const exec_list *actual_ps); /** * Name of the function. |