glsl: Enable GL_OES_texture_3D extension for ES2.

8 files changed, 40 insertions, 4 deletions

diff --git a/src/glsl/builtin_types.h b/src/glsl/builtin_types.h
index 8ccbf6e312f..58b9a81273a 100644
--- a/src/glsl/builtin_types.h
+++ b/src/glsl/builtin_types.h
@@ -27,6 +27,10 @@ const glsl_type glsl_type::_error_type =
 const glsl_type glsl_type::_void_type =
    glsl_type(GL_INVALID_ENUM, GLSL_TYPE_VOID, 0, 0, "void");
 
+const glsl_type glsl_type::_sampler3D_type =
+   glsl_type(GL_SAMPLER_3D, GLSL_SAMPLER_DIM_3D, 0, 0, GLSL_TYPE_FLOAT,
+	     "sampler3D");
+
 const glsl_type *const glsl_type::error_type = & glsl_type::_error_type;
 const glsl_type *const glsl_type::void_type = & glsl_type::_void_type;
 
@@ -181,8 +185,6 @@ const glsl_type glsl_type::builtin_110_types[] = {
 	     "sampler1DShadow"),
    glsl_type(GL_SAMPLER_2D_SHADOW, GLSL_SAMPLER_DIM_2D, 1, 0, GLSL_TYPE_FLOAT,
 	     "sampler2DShadow"),
-   glsl_type(GL_SAMPLER_3D,   GLSL_SAMPLER_DIM_3D, 0, 0, GLSL_TYPE_FLOAT,
-	     "sampler3D"),
 };
 /*@}*/
 
diff --git a/src/glsl/builtins/profiles/OES_texture_3D.frag b/src/glsl/builtins/profiles/OES_texture_3D.frag
new file mode 100644
index 00000000000..b6ebd6a311f
--- /dev/null
+++ b/src/glsl/builtins/profiles/OES_texture_3D.frag
@@ -0,0 +1,7 @@
+#version 100
+#extension GL_OES_texture_3D : enable
+
+vec4 texture3D (sampler3D sampler, vec3 coord);
+vec4 texture3DProj (sampler3D sampler, vec4 coord);
+vec4 texture3D (sampler3D sampler, vec3 coord, float bias);
+vec4 texture3DProj (sampler3D sampler, vec4 coord, float bias);
diff --git a/src/glsl/builtins/profiles/OES_texture_3D.vert b/src/glsl/builtins/profiles/OES_texture_3D.vert
new file mode 100644
index 00000000000..81d12f51e9f
--- /dev/null
+++ b/src/glsl/builtins/profiles/OES_texture_3D.vert
@@ -0,0 +1,7 @@
+#version 100
+#extension GL_OES_texture_3D : enable
+
+vec4 texture3D (sampler3D sampler, vec3 coord);
+vec4 texture3DProj (sampler3D sampler, vec4 coord);
+vec4 texture3DLod (sampler3D sampler, vec3 coord, float lod);
+vec4 texture3DProjLod (sampler3D sampler, vec4 coord, float lod);
diff --git a/src/glsl/glsl_parser_extras.cpp b/src/glsl/glsl_parser_extras.cpp
index d7a37aef46d..e8c60936fb6 100644
--- a/src/glsl/glsl_parser_extras.cpp
+++ b/src/glsl/glsl_parser_extras.cpp
@@ -256,6 +256,11 @@ _mesa_glsl_process_extension(const char *name, YYLTYPE *name_locp,
       state->AMD_conservative_depth_enable = (ext_mode != extension_disable);
       state->AMD_conservative_depth_warn = (ext_mode == extension_warn);
       unsupported = !state->extensions->AMD_conservative_depth;
+   } else if (strcmp(name, "GL_OES_texture_3D") == 0 && state->es_shader) {
+      state->OES_texture_3D_enable = (ext_mode != extension_disable);
+      state->OES_texture_3D_warn = (ext_mode == extension_warn);
+
+      unsupported = !state->extensions->EXT_texture3D;
    } else {
       unsupported = true;
    }
diff --git a/src/glsl/glsl_parser_extras.h b/src/glsl/glsl_parser_extras.h
index 10cb673c694..b5c016fb399 100644
--- a/src/glsl/glsl_parser_extras.h
+++ b/src/glsl/glsl_parser_extras.h
@@ -172,6 +172,8 @@ struct _mesa_glsl_parse_state {
    unsigned ARB_shader_stencil_export_warn:1;
    unsigned AMD_conservative_depth_enable:1;
    unsigned AMD_conservative_depth_warn:1;
+   unsigned OES_texture_3D_enable:1;
+   unsigned OES_texture_3D_warn:1;
    /*@}*/
 
    /** Extensions supported by the OpenGL implementation. */
diff --git a/src/glsl/glsl_types.cpp b/src/glsl/glsl_types.cpp
index 76b4f3e4cb0..78d10bd9380 100644
--- a/src/glsl/glsl_types.cpp
+++ b/src/glsl/glsl_types.cpp
@@ -131,6 +131,7 @@ glsl_type::generate_110_types(glsl_symbol_table *symtab)
    add_types_to_symbol_table(symtab, builtin_110_types,
 			     Elements(builtin_110_types),
 			     false);
+   add_types_to_symbol_table(symtab, &_sampler3D_type, 1, false);
    add_types_to_symbol_table(symtab, builtin_110_deprecated_structure_types,
 			     Elements(builtin_110_deprecated_structure_types),
 			     false);
@@ -179,6 +180,13 @@ glsl_type::generate_EXT_texture_array_types(glsl_symbol_table *symtab,
 
 
 void
+glsl_type::generate_OES_texture_3D_types(glsl_symbol_table *symtab, bool warn)
+{
+   add_types_to_symbol_table(symtab, &_sampler3D_type, 1, warn);
+}
+
+
+void
 _mesa_glsl_initialize_types(struct _mesa_glsl_parse_state *state)
 {
    switch (state->language_version) {
@@ -204,6 +212,10 @@ _mesa_glsl_initialize_types(struct _mesa_glsl_parse_state *state)
       glsl_type::generate_ARB_texture_rectangle_types(state->symbols,
 					   state->ARB_texture_rectangle_warn);
    }
+   if (state->OES_texture_3D_enable && state->language_version == 100) {
+      glsl_type::generate_OES_texture_3D_types(state->symbols,
+					       state->OES_texture_3D_warn);
+   }
 
    if (state->EXT_texture_array_enable && state->language_version < 130) {
       // These are already included in 130; don't create twice.
diff --git a/src/glsl/glsl_types.h b/src/glsl/glsl_types.h
index 61bf5e0cfd2..3c2672c01a0 100644
--- a/src/glsl/glsl_types.h
+++ b/src/glsl/glsl_types.h
@@ -427,6 +427,7 @@ private:
    /*@{*/
    static const glsl_type _error_type;
    static const glsl_type _void_type;
+   static const glsl_type _sampler3D_type;
    static const glsl_type builtin_core_types[];
    static const glsl_type builtin_structure_types[];
    static const glsl_type builtin_110_deprecated_structure_types[];
@@ -453,6 +454,7 @@ private:
    static void generate_130_types(glsl_symbol_table *);
    static void generate_ARB_texture_rectangle_types(glsl_symbol_table *, bool);
    static void generate_EXT_texture_array_types(glsl_symbol_table *, bool);
+   static void generate_OES_texture_3D_types(glsl_symbol_table *, bool);
    /*@}*/
 
    /**
diff --git a/src/mesa/main/extensions.c b/src/mesa/main/extensions.c
index 310740b0dd1..b8bb2555acd 100644
--- a/src/mesa/main/extensions.c
+++ b/src/mesa/main/extensions.c
@@ -241,8 +241,7 @@ static const struct extension extension_table[] = {
    { "GL_OES_stencil4",                            o(dummy_false),                     DISABLE                },
    { "GL_OES_stencil8",                            o(EXT_framebuffer_object),                       ES1 | ES2 },
    { "GL_OES_stencil_wrap",                        o(EXT_stencil_wrap),                             ES1       },
-   /* GL_OES_texture_3D is disabled due to missing GLSL support. */
-   { "GL_OES_texture_3D",                          o(EXT_texture3D),                   DISABLE                },
+   { "GL_OES_texture_3D",                          o(EXT_texture3D),                                      ES2 },
    { "GL_OES_texture_cube_map",                    o(ARB_texture_cube_map),                         ES1       },
    { "GL_OES_texture_env_crossbar",                o(ARB_texture_env_crossbar),                     ES1       },
    { "GL_OES_texture_mirrored_repeat",             o(ARB_texture_mirrored_repeat),                  ES1       },