glsl: Scaffolding for ARB_shader_bit_encoding.

That adds support for activating the extension.  It doesn't actually
*do* anything yet, of course.

Signed-off-by: Olivier Galibert <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>

8 files changed, 11 insertions, 0 deletions

diff --git a/src/glsl/builtins/tools/generate_builtins.py b/src/glsl/builtins/tools/generate_builtins.py
index eada4a65681..86660a9362c 100755
--- a/src/glsl/builtins/tools/generate_builtins.py
+++ b/src/glsl/builtins/tools/generate_builtins.py
@@ -186,6 +186,7 @@ read_builtins(GLenum target, const char *protos, const char **functions, unsigne
    st->ARB_texture_rectangle_enable = true;
    st->EXT_texture_array_enable = true;
    st->OES_EGL_image_external_enable = true;
+   st->ARB_shader_bit_encoding_enable = true;
    _mesa_glsl_initialize_types(st);
 
    sh->ir = new(sh) exec_list;
diff --git a/src/glsl/glcpp/glcpp-parse.y b/src/glsl/glcpp/glcpp-parse.y
index 47ba54ddfbb..9e8f9b2d653 100644
--- a/src/glsl/glcpp/glcpp-parse.y
+++ b/src/glsl/glcpp/glcpp-parse.y
@@ -1141,6 +1141,9 @@ glcpp_parser_create (const struct gl_extensions *extensions, int api)
 
 	   if (extensions->OES_EGL_image_external)
 	      add_builtin_define(parser, "GL_OES_EGL_image_external", 1);
+
+	   if (extensions->ARB_shader_bit_encoding)
+	      add_builtin_define(parser, "GL_ARB_shader_bit_encoding", 1);
 	}
 
 	language_version = 110;
diff --git a/src/glsl/glsl_parser_extras.cpp b/src/glsl/glsl_parser_extras.cpp
index 46f21dd076c..02c3986169c 100644
--- a/src/glsl/glsl_parser_extras.cpp
+++ b/src/glsl/glsl_parser_extras.cpp
@@ -295,6 +295,7 @@ static const _mesa_glsl_extension _mesa_glsl_supported_extensions[] = {
    EXT(AMD_shader_stencil_export,      false, false, true,  true,  false,     ARB_shader_stencil_export),
    EXT(OES_texture_3D,                 true,  false, true,  false, true,      EXT_texture3D),
    EXT(OES_EGL_image_external,         true,  false, true,  false, true,      OES_EGL_image_external),
+   EXT(ARB_shader_bit_encoding,        true,  true,  true,  true,  false,     ARB_shader_bit_encoding),
 };
 
 #undef EXT
diff --git a/src/glsl/glsl_parser_extras.h b/src/glsl/glsl_parser_extras.h
index 1a909c68b7f..246fc8141db 100644
--- a/src/glsl/glsl_parser_extras.h
+++ b/src/glsl/glsl_parser_extras.h
@@ -205,6 +205,8 @@ struct _mesa_glsl_parse_state {
    bool OES_texture_3D_warn;
    bool OES_EGL_image_external_enable;
    bool OES_EGL_image_external_warn;
+   bool ARB_shader_bit_encoding_enable;
+   bool ARB_shader_bit_encoding_warn;
    /*@}*/
 
    /** Extensions supported by the OpenGL implementation. */
diff --git a/src/glsl/standalone_scaffolding.cpp b/src/glsl/standalone_scaffolding.cpp
index f15f2d882de..679714e384a 100644
--- a/src/glsl/standalone_scaffolding.cpp
+++ b/src/glsl/standalone_scaffolding.cpp
@@ -79,6 +79,7 @@ void initialize_context_to_defaults(struct gl_context *ctx, gl_api api)
    ctx->Extensions.NV_texture_rectangle = true;
    ctx->Extensions.EXT_texture3D = true;
    ctx->Extensions.OES_EGL_image_external = true;
+   ctx->Extensions.ARB_shader_bit_encoding = true;
 
    ctx->Const.GLSLVersion = 120;
 
diff --git a/src/mesa/main/extensions.c b/src/mesa/main/extensions.c
index cd76eeb3d8a..2688f7acedc 100644
--- a/src/mesa/main/extensions.c
+++ b/src/mesa/main/extensions.c
@@ -112,6 +112,7 @@ static const struct extension extension_table[] = {
    { "GL_ARB_robustness",                          o(dummy_true),                              GL,             2010 },
    { "GL_ARB_sampler_objects",                     o(ARB_sampler_objects),                     GL,             2009 },
    { "GL_ARB_seamless_cube_map",                   o(ARB_seamless_cube_map),                   GL,             2009 },
+   { "GL_ARB_shader_bit_encoding",                 o(ARB_shader_bit_encoding),                 GL,             2010 },
    { "GL_ARB_shader_objects",                      o(ARB_shader_objects),                      GL,             2002 },
    { "GL_ARB_shader_stencil_export",               o(ARB_shader_stencil_export),               GL,             2009 },
    { "GL_ARB_shader_texture_lod",                  o(ARB_shader_texture_lod),                  GL,             2009 },
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index 3a8cac9c5a1..ea40ffc9c06 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -2895,6 +2895,7 @@ struct gl_extensions
    GLboolean ARB_point_sprite;
    GLboolean ARB_sampler_objects;
    GLboolean ARB_seamless_cube_map;
+   GLboolean ARB_shader_bit_encoding;
    GLboolean ARB_shader_objects;
    GLboolean ARB_shader_stencil_export;
    GLboolean ARB_shader_texture_lod;
diff --git a/src/mesa/main/version.c b/src/mesa/main/version.c
index 90afecb5d8b..efaaf58de88 100644
--- a/src/mesa/main/version.c
+++ b/src/mesa/main/version.c
@@ -171,6 +171,7 @@ compute_version(struct gl_context *ctx)
                               ctx->Extensions.ARB_instanced_arrays &&
                               ctx->Extensions.ARB_occlusion_query2 &&
                               ctx->Extensions.ARB_sampler_objects &&
+                              ctx->Extensions.ARB_shader_bit_encoding &&
                               ctx->Extensions.ARB_texture_rgb10_a2ui &&
                               ctx->Extensions.ARB_timer_query &&
                               ctx->Extensions.ARB_vertex_type_2_10_10_10_rev &&