Mesa (master): glsl: Expose pack/unpack built-ins for ARB_gpu_shader5.

[Matt Turner]

Module: Mesa
Branch: master
Commit: 7988b4804f07b5cdb01cdca7dcbe75be30f1df9e
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=7988b4804f07b5cdb01cdca7dcbe75be30f1df9e

Author: Matt Turner <mattst88 at gmail.com>
Date:   Tue Mar 11 12:36:04 2014 -0700

glsl: Expose pack/unpack built-ins for ARB_gpu_shader5.

ARB_gpu_shader5 and ES 3.0 expose different subsets of
ARB_shading_language_packing.

Reviewed-by: Anuj Phogat <anuj.phogat at gmail.com>
Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>

---

 src/glsl/builtin_functions.cpp |   26 +++++++++++++++++---------
 1 file changed, 17 insertions(+), 9 deletions(-)

diff --git a/src/glsl/builtin_functions.cpp b/src/glsl/builtin_functions.cpp
index a52077d..3df2e3a 100644
--- a/src/glsl/builtin_functions.cpp
+++ b/src/glsl/builtin_functions.cpp
@@ -194,16 +194,17 @@ shader_integer_mix(const _mesa_glsl_parse_state *state)
 }
 
 static bool
-shader_packing(const _mesa_glsl_parse_state *state)
+shader_packing_or_es3(const _mesa_glsl_parse_state *state)
 {
    return state->ARB_shading_language_packing_enable ||
-          state->is_version(400, 0);
+          state->is_version(400, 300);
 }
 
 static bool
-shader_packing_or_es3(const _mesa_glsl_parse_state *state)
+shader_packing_or_es3_or_gpu_shader5(const _mesa_glsl_parse_state *state)
 {
    return state->ARB_shading_language_packing_enable ||
+          state->ARB_gpu_shader5_enable ||
           state->is_version(400, 300);
 }
 
@@ -214,6 +215,13 @@ gpu_shader5(const _mesa_glsl_parse_state *state)
 }
 
 static bool
+shader_packing_or_gpu_shader5(const _mesa_glsl_parse_state *state)
+{
+   return state->ARB_shading_language_packing_enable ||
+          gpu_shader5(state);
+}
+
+static bool
 texture_array_lod(const _mesa_glsl_parse_state *state)
 {
    return lod_exists_in_stage(state) &&
@@ -991,14 +999,14 @@ builtin_builder::create_builtins()
                 _uintBitsToFloat(glsl_type::uvec4_type),
                 NULL);
 
-   add_function("packUnorm2x16",   _packUnorm2x16(shader_packing_or_es3),   NULL);
+   add_function("packUnorm2x16",   _packUnorm2x16(shader_packing_or_es3_or_gpu_shader5),   NULL);
    add_function("packSnorm2x16",   _packSnorm2x16(shader_packing_or_es3),   NULL);
-   add_function("packUnorm4x8",    _packUnorm4x8(shader_packing),           NULL);
-   add_function("packSnorm4x8",    _packSnorm4x8(shader_packing),           NULL);
-   add_function("unpackUnorm2x16", _unpackUnorm2x16(shader_packing_or_es3), NULL);
+   add_function("packUnorm4x8",    _packUnorm4x8(shader_packing_or_gpu_shader5),           NULL);
+   add_function("packSnorm4x8",    _packSnorm4x8(shader_packing_or_gpu_shader5),           NULL);
+   add_function("unpackUnorm2x16", _unpackUnorm2x16(shader_packing_or_es3_or_gpu_shader5), NULL);
    add_function("unpackSnorm2x16", _unpackSnorm2x16(shader_packing_or_es3), NULL);
-   add_function("unpackUnorm4x8",  _unpackUnorm4x8(shader_packing),         NULL);
-   add_function("unpackSnorm4x8",  _unpackSnorm4x8(shader_packing),         NULL);
+   add_function("unpackUnorm4x8",  _unpackUnorm4x8(shader_packing_or_gpu_shader5),         NULL);
+   add_function("unpackSnorm4x8",  _unpackSnorm4x8(shader_packing_or_gpu_shader5),         NULL);
    add_function("packHalf2x16",    _packHalf2x16(shader_packing_or_es3),    NULL);
    add_function("unpackHalf2x16",  _unpackHalf2x16(shader_packing_or_es3),  NULL);