Initial checkin of new ARB_frag/vertex program parser

1 files changed, 83 insertions, 0 deletions

diff --git a/src/mesa/main/arbparse.h b/src/mesa/main/arbparse.h
new file mode 100644
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+++ b/src/mesa/main/arbparse.h
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+/*
+ * Mesa 3-D graphics library
+ * Version:  5.1
+ *
+ * Copyright (C) 1999-2003  Brian Paul   All Rights Reserved.
+ *
+ * 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 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
+ * BRIAN PAUL 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.
+ *
+ * Authors:
+ *    Brian Paul
+ */
+
+
+#ifndef ARBPARSE_H
+#define ARBPARSE_H
+
+#include "context.h"
+#include "mtypes.h"
+#include "nvvertprog.h"
+#include "nvfragprog.h"
+
+/**
+ * This is basically a union of the vertex_program and fragment_program
+ * structs that we can use to parse the program into
+ *
+ * XXX: this should go into mtypes.h?
+ */
+struct arb_program
+{
+	GLuint type; /* FRAGMENT_PROGRAM_ARB or VERTEX_PROGRAM_ARB */
+
+	struct program Base;
+   struct program_parameter_list *Parameters; 
+	GLuint InputsRead;
+	GLuint OutputsWritten;
+
+	GLuint Position;       /* Just used for error reporting while parsing */
+	GLuint MajorVersion;
+	GLuint MinorVersion;
+
+	/* ARB_vertex_program specifics */ 
+	struct vp_instruction *VPInstructions;
+
+	/* Options currently recognized by the parser */
+	/* ARB_fp */
+	GLboolean HintPrecisionFastest;
+	GLboolean HintPrecisionNicest;
+	GLboolean HintFogExp2;
+	GLboolean HintFogExp;
+	GLboolean HintFogLinear;
+
+	/* ARB_fp & _vp */
+	GLboolean HintPositionInvariant;
+
+	/* ARB_fragment_program sepecifics */
+	struct fp_instruction *FPInstructions;
+   GLuint TexturesUsed[MAX_TEXTURE_IMAGE_UNITS]; 
+   GLuint NumAluInstructions; 
+   GLuint NumTexInstructions;
+   GLuint NumTexIndirections;
+};
+
+extern GLuint 
+_mesa_parse_arb_program( GLcontext *ctx, const GLubyte *str, GLsizei len, 
+                                 struct arb_program *Program );
+                          
+
+#endif