IR variable: Initial work to support GLSL built-in variables

1 files changed, 59 insertions, 0 deletions

diff --git a/builtin_variables.h b/builtin_variables.h
new file mode 100644
index 0000000000..9693217e99
--- /dev/null
+++ b/builtin_variables.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+struct builtin_variable {
+   enum ir_variable_mode mode;
+   const char *type;
+   const char *name;
+};
+
+static const builtin_variable builtin_core_vs_variables[] = {
+   { ir_var_out, "vec4",  "gl_Position" },
+   { ir_var_out, "float", "gl_PointSize" },
+};
+
+static const builtin_variable builtin_110_deprecated_vs_variables[] = {
+   { ir_var_in,  "vec4",  "gl_Vertex" },
+   { ir_var_in,  "vec4",  "gl_Normal" },
+   { ir_var_in,  "vec4",  "gl_Color" },
+   { ir_var_in,  "vec4",  "gl_SecondaryColor" },
+   { ir_var_in,  "vec4",  "gl_MultiTexCoord0" },
+   { ir_var_in,  "vec4",  "gl_MultiTexCoord1" },
+   { ir_var_in,  "vec4",  "gl_MultiTexCoord2" },
+   { ir_var_in,  "vec4",  "gl_MultiTexCoord3" },
+   { ir_var_in,  "vec4",  "gl_MultiTexCoord4" },
+   { ir_var_in,  "vec4",  "gl_MultiTexCoord5" },
+   { ir_var_in,  "vec4",  "gl_MultiTexCoord6" },
+   { ir_var_in,  "vec4",  "gl_MultiTexCoord7" },
+   { ir_var_in,  "float", "gl_FogCoord" },
+   { ir_var_out, "vec4",  "gl_ClipVertex" },
+   { ir_var_out, "vec4",  "gl_FrontColor" },
+   { ir_var_out, "vec4",  "gl_BackColor" },
+   { ir_var_out, "vec4",  "gl_FrontSecondaryColor" },
+   { ir_var_out, "vec4",  "gl_BackSecondaryColor" },
+   { ir_var_out, "vec4",  "gl_FogFragCoord" },
+};
+
+static const builtin_variable builtin_130_vs_variables[] = {
+   { ir_var_in,  "int",   "gl_VertexID" },
+};