+++ /dev/null
-/*
- * Mesa 3-D graphics library
- * Version: 6.1
- *
- * Copyright (C) 1999-2004 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.
- */
-
-#define DEBUG_PARSING 0
-
-/**
- * \file arbparse.c
- * ARB_*_program parser core
- * \author Michal Krol, Karl Rasche
- */
-
-#include "mtypes.h"
-#include "glheader.h"
-#include "context.h"
-#include "hash.h"
-#include "imports.h"
-#include "macros.h"
-#include "program.h"
-#include "nvvertprog.h"
-#include "nvfragprog.h"
-#include "arbparse.h"
-
-/* TODO:
- * Fragment Program Stuff:
- * -----------------------------------------------------
- *
- * - things from Michal's email
- * + overflow on atoi
- * + not-overflowing floats (don't use parse_integer..)
- * + can remove range checking in arbparse.c
- *
- * - check all limits of number of various variables
- * + parameters
- *
- * - test! test! test!
- *
- * Vertex Program Stuff:
- * -----------------------------------------------------
- * - Optimize param array usage and count limits correctly, see spec,
- * section 2.14.3.7
- * + Record if an array is reference absolutly or relatively (or both)
- * + For absolute arrays, store a bitmap of accesses
- * + For single parameters, store an access flag
- * + After parsing, make a parameter cleanup and merging pass, where
- * relative arrays are layed out first, followed by abs arrays, and
- * finally single state.
- * + Remap offsets for param src and dst registers
- * + Now we can properly count parameter usage
- *
- * - Multiple state binding errors in param arrays (see spec, just before
- * section 2.14.3.3)
- * - grep for XXX
- *
- * Mesa Stuff
- * -----------------------------------------------------
- * - User clipping planes vs. PositionInvariant
- * - Is it sufficient to just multiply by the mvp to transform in the
- * PositionInvariant case? Or do we need something more involved?
- *
- * - vp_src swizzle is GLubyte, fp_src swizzle is GLuint
- * - fetch state listed in program_parameters list
- * + WTF should this go???
- * + currently in nvvertexec.c and s_nvfragprog.c
- *
- * - allow for multiple address registers (and fetch address regs properly)
- *
- * Cosmetic Stuff
- * -----------------------------------------------------
- * - remove any leftover unused grammer.c stuff (dict_ ?)
- * - fix grammer.c error handling so its not static
- * - #ifdef around stuff pertaining to extentions
- *
- * Outstanding Questions:
- * -----------------------------------------------------
- * - ARB_matrix_palette / ARB_vertex_blend -- not supported
- * what gets hacked off because of this:
- * + VERTEX_ATTRIB_MATRIXINDEX
- * + VERTEX_ATTRIB_WEIGHT
- * + MATRIX_MODELVIEW
- * + MATRIX_PALETTE
- *
- * - When can we fetch env/local params from their own register files, and
- * when to we have to fetch them into the main state register file?
- * (think arrays)
- *
- * Grammar Changes:
- * -----------------------------------------------------
- */
-
-typedef GLubyte *production;
-
-/*-----------------------------------------------------------------------
- * From here on down is the syntax checking portion
- */
-
-/* VERSION: 0.4 */
-
-/*
-INTRODUCTION
-------------
-
-The task is to check the syntax of an input string. Input string is a
-stream of ASCII characters terminated with null-character
-('\0'). Checking it using C language is difficult and hard to
-implement without bugs. It is hard to maintain and change prior to
-further syntax changes.
-
-This is because of high redundancy of the C code. Large blocks of code
-are duplicated with only small changes. Even using macros does not
-solve the problem, because macros cannot erase the complexity of the
-code.
-
-The resolution is to create a new language that will be highly
-oriented to our task. Once we describe particular syntax, we are
-done. We can then focus on the code that implements the language. The
-size and complexity of it is relatively small than the code that
-directly checks the syntax.
-
-First, we must implement our new language. Here, the language is
-implemented in C, but it could also be implemented in any other
-language. The code is listed below. We must take a good care that it
-is bug free. This is simple because the code is simple and clean.
-
-Next, we must describe the syntax of our new language in itself. Once
-created and checked manually that it is correct, we can use it to
-check another scripts.
-
-Note that our new language loading code does not have to check the
-syntax. It is because we assume that the script describing itself is
-correct, and other scripts can be syntactically checked by the former
-script. The loading code must only do semantic checking which leads us
-to simple resolving references.
-
-THE LANGUAGE
-------------
-
-Here I will describe the syntax of the new language (further called
-"Synek"). It is mainly a sequence of declarations terminated by a
-semicolon. The declaration consists of a symbol, which is an
-identifier, and its definition. A definition is in turn a sequence of
-specifiers connected with ".and" or ".or" operator. These operators
-cannot be mixed together in a one definition. Specifier can be a
-symbol, string, character, character range or a special keyword
-".true" or ".false".
-
-On the very beginning of the script there is a declaration of a root
-symbol and is in the form:
- .syntax <root_symbol>;
-
-The <root_symbol> must be on of the symbols in declaration
-sequence. The syntax is correct if the root symbol evaluates to
-true. A symbol evaluates to true if the definition associated with the
-symbol evaluates to true. Definition evaluation depends on the
-operator used to connect specifiers in the definition. If ".and"
-operator is used, definition evaluates to true if and only if all the
-specifiers evaluate to true. If ".or" operator is used, definition
-evalutes to true if any of the specifiers evaluates to true. If
-definition contains only one specifier, it is evaluated as if it was
-connected with ".true" keyword by ".and" operator.
-
-If specifier is a ".true" keyword, it always evaluates to true.
-
-If specifier is a ".false" keyword, it always evaluates to
-false. Specifier evaluates to false when it does not evaluate to true.
-
-Character range specifier is in the form:
- '<first_character>' - '<second_character>'
-
-If specifier is a character range, it evaluates to true if character
-in the stream is greater or equal to <first_character> and less or
-equal to <second_character>. In that situation the stream pointer is
-advanced to point to next character in the stream. All C-style escape
-sequences are supported although trigraph sequences are not. The
-comparisions are performed on 8-bit unsigned integers.
-
-Character specifier is in the form:
- '<single_character>'
-
-It evaluates to true if the following character range specifier evaluates to
-true:
- '<single_character>' - '<single_character>'
-
-String specifier is in the form:
- "<string>"
-
-Let N be the number of characters in <string>. Let <string>[i]
-designate i-th character in <string>. Then the string specifier
-evaluates to true if and only if for i in the range [0, N) the
-following character specifier evaluates to true:
- '<string>[i]'
-
-If <string>[i] is a quotation mark, '<string>[i]' is replaced with
-'\<string>[i]'.
-
-Symbol specifier can be optionally preceded by a ".loop" keyword in the form:
- .loop <symbol> (1)
- where <symbol> is defined as follows:
- <symbol> <definition>; (2)
- Construction (1) is replaced by the following code:
- <symbol$1>
- and declaration (2) is replaced by the following:
- <symbol$1> <symbol$2> .or .true;
- <symbol$2> <symbol> .and <symbol$1>;
- <symbol> <definition>;
-
-
-ESCAPE SEQUENCES
-----------------
-
-Synek supports all escape sequences in character specifiers. The
-mapping table is listed below. All occurences of the characters in
-the first column are replaced with the corresponding character in the
-second column.
-
- Escape sequence Represents
- -----------------------------------------------------------------------
- \a Bell (alert)
- \b Backspace
- \f Formfeed
- \n New line
- \r Carriage return
- \t Horizontal tab
- \v Vertical tab
- \' Single quotation mark
- \" Double quotation mark
- \\ Backslash
- \? Literal question mark
- \ooo ASCII character in octal notation
- \xhhh ASCII character in hexadecimal notation
- -----------------------------------------------------------------------
-
-
-RAISING ERRORS
---------------
-
-Any specifier can be followed by a special construction that is
-executed when the specifier evaluates to false. The construction is in
-the form:
- .error <ERROR_TEXT>
-
-<ERROR_TEXT> is an identifier declared earlier by error text
-declaration. The declaration is in the form:
-
- .errtext <ERROR_TEXT> "<error_desc>"
-
-When specifier evaluates to false and this construction is present,
-parsing is stopped immediately and <error_desc> is returned as a
-result of parsing. The error position is also returned and it is meant
-as an offset from the beggining of the stream to the character that
-was valid so far. Example:
-
- (**** syntax script ****)
-
- .syntax program;
- .errtext MISSING_SEMICOLON "missing ';'"
- program declaration .and .loop space .and ';'
- .error MISSING_SEMICOLON .and
- .loop space .and '\0';
- declaration "declare" .and .loop space .and identifier;
- space ' ';
- (**** sample code ****)
- declare foo ,
-
-In the example above checking the sample code will result in error
-message "missing ';'" and error position 12. The sample code is not
-correct. Note the presence of '\0' specifier to assure that there is
-no code after semicolon - only spaces. <error_desc> can optionally
-contain identifier surrounded by dollar signs $. In such a case, the
-identifier and dollar signs are replaced by a string retrieved by
-invoking symbol with the identifier name. The starting position is the
-error position. The lenght of the resulting string is the position
-after invoking the symbol.
-
-
-PRODUCTION
-----------
-
-Synek not only checks the syntax but it can also produce (emit) bytes
-associated with specifiers that evaluate to true. That is, every
-specifier and optional error construction can be followed by a number
-of emit constructions that are in the form:
- .emit <parameter>
-
-<paramater> can be a HEX number, identifier, a star * or a dollar
-$. HEX number is preceded by 0x or 0X. If <parameter> is an
-identifier, it must be earlier declared by emit code declaration in
-the form:
- .emtcode <identifier> <hex_number>
-
-When given specifier evaluates to true, all emits associated with the
-specifier are output in order they were declared. A star means that
-last-read character should be output instead of constant
-value. Example:
-
- (**** syntax script ****)
-
- .syntax foobar;
- .emtcode WORD_FOO 0x01
- .emtcode WORD_BAR 0x02
- foobar FOO .emit WORD_FOO .or BAR .emit WORD_BAR .or .true .emit 0x00;
- FOO "foo" .and SPACE;
- BAR "bar" .and SPACE;
- SPACE ' ' .or '\0';
-
- (**** sample text 1 ****)
-
- foo
-
- (**** sample text 2 ****)
-
- foobar
-
-For both samples the result will be one-element array. For first
-sample text it will be value 1, for second - 0. Note that every text
-will be accepted because of presence of .true as an alternative.
-
-Another example:
-
- (**** syntax script ****)
-
- .syntax declaration;
- .emtcode VARIABLE 0x01
- declaration "declare" .and .loop space .and
- identifier .emit VARIABLE .and (1)
- .true .emit 0x00 .and (2)
- .loop space .and ';';
- space ' ' .or '\t';
- identifier .loop id_char .emit *; (3)
- id_char 'a'-'z' .or 'A'-'Z' .or '_';
- (**** sample code ****)
- declare fubar;
-
-In specifier (1) symbol <identifier> is followed by .emit VARIABLE. If
-it evaluates to true, VARIABLE constant and then production of the
-symbol is output. Specifier (2) is used to terminate the string with
-null to signal when the string ends. Specifier (3) outputs all
-characters that make declared identifier. The result of sample code
-will be the following array:
- { 1, 'f', 'u', 'b', 'a', 'r', 0 }
-
-If .emit is followed by dollar $, it means that current position
-should be output. Current position is a 32-bit unsigned integer
-distance from the very beginning of the parsed string to first
-character consumed by the specifier associated with the .emit
-instruction. Current position is stored in the output buffer in
-Little-Endian convention (the lowest byte comes first). */
-
-/**
- * This is the text describing the rules to parse the grammar
- */
-#include "arbparse_syn.h"
-
-/**
- * These should match up with the values defined in arbparse.syn.h
- */
-
-/*
- Changes:
- - changed and merged V_* and F_* opcode values to OP_*.
-*/
-#define REVISION 0x05
-
-/* program type */
-#define FRAGMENT_PROGRAM 0x01
-#define VERTEX_PROGRAM 0x02
-
-/* program section */
-#define OPTION 0x01
-#define INSTRUCTION 0x02
-#define DECLARATION 0x03
-#define END 0x04
-
-/* fragment program option flags */
-#define ARB_PRECISION_HINT_FASTEST 0x01
-#define ARB_PRECISION_HINT_NICEST 0x02
-#define ARB_FOG_EXP 0x04
-#define ARB_FOG_EXP2 0x08
-#define ARB_FOG_LINEAR 0x10
-
-/* vertex program option flags */
-/*
-$4: changed from 0x01 to 0x20.
-*/
-#define ARB_POSITION_INVARIANT 0x20
-
-/* fragment program 1.0 instruction class */
-#define OP_ALU_INST 0x00
-#define OP_TEX_INST 0x01
-
-/* vertex program 1.0 instruction class */
-/* OP_ALU_INST */
-
-/* fragment program 1.0 instruction type */
-#define OP_ALU_VECTOR 0x06
-#define OP_ALU_SCALAR 0x03
-#define OP_ALU_BINSC 0x02
-#define OP_ALU_BIN 0x01
-#define OP_ALU_TRI 0x05
-#define OP_ALU_SWZ 0x04
-#define OP_TEX_SAMPLE 0x07
-#define OP_TEX_KIL 0x08
-
-/* vertex program 1.0 instruction type */
-#define OP_ALU_ARL 0x00
-/* OP_ALU_VECTOR */
-/* OP_ALU_SCALAR */
-/* OP_ALU_BINSC */
-/* OP_ALU_BIN */
-/* OP_ALU_TRI */
-/* OP_ALU_SWZ */
-
-/* fragment program 1.0 instruction code */
-#define OP_ABS 0x00
-#define OP_ABS_SAT 0x1B
-#define OP_FLR 0x09
-#define OP_FLR_SAT 0x26
-#define OP_FRC 0x0A
-#define OP_FRC_SAT 0x27
-#define OP_LIT 0x0C
-#define OP_LIT_SAT 0x2A
-#define OP_MOV 0x11
-#define OP_MOV_SAT 0x30
-#define OP_COS 0x1F
-#define OP_COS_SAT 0x20
-#define OP_EX2 0x07
-#define OP_EX2_SAT 0x25
-#define OP_LG2 0x0B
-#define OP_LG2_SAT 0x29
-#define OP_RCP 0x14
-#define OP_RCP_SAT 0x33
-#define OP_RSQ 0x15
-#define OP_RSQ_SAT 0x34
-#define OP_SIN 0x38
-#define OP_SIN_SAT 0x39
-#define OP_SCS 0x35
-#define OP_SCS_SAT 0x36
-#define OP_POW 0x13
-#define OP_POW_SAT 0x32
-#define OP_ADD 0x01
-#define OP_ADD_SAT 0x1C
-#define OP_DP3 0x03
-#define OP_DP3_SAT 0x21
-#define OP_DP4 0x04
-#define OP_DP4_SAT 0x22
-#define OP_DPH 0x05
-#define OP_DPH_SAT 0x23
-#define OP_DST 0x06
-#define OP_DST_SAT 0x24
-#define OP_MAX 0x0F
-#define OP_MAX_SAT 0x2E
-#define OP_MIN 0x10
-#define OP_MIN_SAT 0x2F
-#define OP_MUL 0x12
-#define OP_MUL_SAT 0x31
-#define OP_SGE 0x16
-#define OP_SGE_SAT 0x37
-#define OP_SLT 0x17
-#define OP_SLT_SAT 0x3A
-#define OP_SUB 0x18
-#define OP_SUB_SAT 0x3B
-#define OP_XPD 0x1A
-#define OP_XPD_SAT 0x43
-#define OP_CMP 0x1D
-#define OP_CMP_SAT 0x1E
-#define OP_LRP 0x2B
-#define OP_LRP_SAT 0x2C
-#define OP_MAD 0x0E
-#define OP_MAD_SAT 0x2D
-#define OP_SWZ 0x19
-#define OP_SWZ_SAT 0x3C
-#define OP_TEX 0x3D
-#define OP_TEX_SAT 0x3E
-#define OP_TXB 0x3F
-#define OP_TXB_SAT 0x40
-#define OP_TXP 0x41
-#define OP_TXP_SAT 0x42
-#define OP_KIL 0x28
-
-/* vertex program 1.0 instruction code */
-#define OP_ARL 0x02
-/* OP_ABS */
-/* OP_FLR */
-/* OP_FRC */
-/* OP_LIT */
-/* OP_MOV */
-/* OP_EX2 */
-#define OP_EXP 0x08
-/* OP_LG2 */
-#define OP_LOG 0x0D
-/* OP_RCP */
-/* OP_RSQ */
-/* OP_POW */
-/* OP_ADD */
-/* OP_DP3 */
-/* OP_DP4 */
-/* OP_DPH */
-/* OP_DST */
-/* OP_MAX */
-/* OP_MIN */
-/* OP_MUL */
-/* OP_SGE */
-/* OP_SLT */
-/* OP_SUB */
-/* OP_XPD */
-/* OP_MAD */
-/* OP_SWZ */
-
-/* fragment attribute binding */
-#define FRAGMENT_ATTRIB_COLOR 0x01
-#define FRAGMENT_ATTRIB_TEXCOORD 0x02
-#define FRAGMENT_ATTRIB_FOGCOORD 0x03
-#define FRAGMENT_ATTRIB_POSITION 0x04
-
-/* vertex attribute binding */
-#define VERTEX_ATTRIB_POSITION 0x01
-#define VERTEX_ATTRIB_WEIGHT 0x02
-#define VERTEX_ATTRIB_NORMAL 0x03
-#define VERTEX_ATTRIB_COLOR 0x04
-#define VERTEX_ATTRIB_FOGCOORD 0x05
-#define VERTEX_ATTRIB_TEXCOORD 0x06
-#define VERTEX_ATTRIB_MATRIXINDEX 0x07
-#define VERTEX_ATTRIB_GENERIC 0x08
-
-/* fragment result binding */
-#define FRAGMENT_RESULT_COLOR 0x01
-#define FRAGMENT_RESULT_DEPTH 0x02
-
-/* vertex result binding */
-#define VERTEX_RESULT_POSITION 0x01
-#define VERTEX_RESULT_COLOR 0x02
-#define VERTEX_RESULT_FOGCOORD 0x03
-#define VERTEX_RESULT_POINTSIZE 0x04
-#define VERTEX_RESULT_TEXCOORD 0x05
-
-/* texture target */
-#define TEXTARGET_1D 0x01
-#define TEXTARGET_2D 0x02
-#define TEXTARGET_3D 0x03
-#define TEXTARGET_RECT 0x04
-#define TEXTARGET_CUBE 0x05
-
-/* sign */
-/*
-$3: removed. '+' and '-' are used instead.
-*/
-/*
-#define SIGN_PLUS 0x00
-#define SIGN_MINUS 0x01
-*/
-
-/* face type */
-#define FACE_FRONT 0x00
-#define FACE_BACK 0x01
-
-/* color type */
-#define COLOR_PRIMARY 0x00
-#define COLOR_SECONDARY 0x01
-
-/* component */
-/*
-$3: Added enumerants.
-*/
-#define COMPONENT_X 0x00
-#define COMPONENT_Y 0x01
-#define COMPONENT_Z 0x02
-#define COMPONENT_W 0x03
-#define COMPONENT_0 0x04
-#define COMPONENT_1 0x05
-
-#define ARRAY_INDEX_ABSOLUTE 0x00
-#define ARRAY_INDEX_RELATIVE 0x01
-
-/* matrix name */
-#define MATRIX_MODELVIEW 0x01
-#define MATRIX_PROJECTION 0x02
-#define MATRIX_MVP 0x03
-#define MATRIX_TEXTURE 0x04
-#define MATRIX_PALETTE 0x05
-#define MATRIX_PROGRAM 0x06
-
-/* matrix modifier */
-#define MATRIX_MODIFIER_IDENTITY 0x00
-#define MATRIX_MODIFIER_INVERSE 0x01
-#define MATRIX_MODIFIER_TRANSPOSE 0x02
-#define MATRIX_MODIFIER_INVTRANS 0x03
-
-/* constant type */
-#define CONSTANT_SCALAR 0x01
-#define CONSTANT_VECTOR 0x02
-
-/* program param type */
-#define PROGRAM_PARAM_ENV 0x01
-#define PROGRAM_PARAM_LOCAL 0x02
-
-/* register type */
-#define REGISTER_ATTRIB 0x01
-#define REGISTER_PARAM 0x02
-#define REGISTER_RESULT 0x03
-#define REGISTER_ESTABLISHED_NAME 0x04
-
-/* param binding */
-#define PARAM_NULL 0x00
-#define PARAM_ARRAY_ELEMENT 0x01
-#define PARAM_STATE_ELEMENT 0x02
-#define PARAM_PROGRAM_ELEMENT 0x03
-#define PARAM_PROGRAM_ELEMENTS 0x04
-#define PARAM_CONSTANT 0x05
-
-/* param state property */
-#define STATE_MATERIAL_PARSER 0x01
-#define STATE_LIGHT_PARSER 0x02
-#define STATE_LIGHT_MODEL 0x03
-#define STATE_LIGHT_PROD 0x04
-#define STATE_FOG 0x05
-#define STATE_MATRIX_ROWS 0x06
-/* fragment program only */
-#define STATE_TEX_ENV 0x07
-#define STATE_DEPTH 0x08
-/* vertex program only */
-/*
-$4: incremented all the three emit codes by two to not collide with other STATE_* emit codes.
-*/
-#define STATE_TEX_GEN 0x09
-#define STATE_CLIP_PLANE 0x0A
-#define STATE_POINT 0x0B
-
-/* state material property */
-#define MATERIAL_AMBIENT 0x01
-#define MATERIAL_DIFFUSE 0x02
-#define MATERIAL_SPECULAR 0x03
-#define MATERIAL_EMISSION 0x04
-#define MATERIAL_SHININESS 0x05
-
-/* state light property */
-#define LIGHT_AMBIENT 0x01
-#define LIGHT_DIFFUSE 0x02
-#define LIGHT_SPECULAR 0x03
-#define LIGHT_POSITION 0x04
-#define LIGHT_ATTENUATION 0x05
-#define LIGHT_HALF 0x06
-#define LIGHT_SPOT_DIRECTION 0x07
-
-/* state light model property */
-#define LIGHT_MODEL_AMBIENT 0x01
-#define LIGHT_MODEL_SCENECOLOR 0x02
-
-/* state light product property */
-#define LIGHT_PROD_AMBIENT 0x01
-#define LIGHT_PROD_DIFFUSE 0x02
-#define LIGHT_PROD_SPECULAR 0x03
-
-/* state texture environment property */
-#define TEX_ENV_COLOR 0x01
-
-/* state texture generation coord property */
-#define TEX_GEN_EYE 0x01
-#define TEX_GEN_OBJECT 0x02
-
-/* state fog property */
-#define FOG_COLOR 0x01
-#define FOG_PARAMS 0x02
-
-/* state depth property */
-#define DEPTH_RANGE 0x01
-
-/* state point parameters property */
-#define POINT_SIZE 0x01
-#define POINT_ATTENUATION 0x02
-
-/* declaration */
-#define ATTRIB 0x01
-#define PARAM 0x02
-#define TEMP 0x03
-#define OUTPUT 0x04
-#define ALIAS 0x05
-/* vertex program 1.0 only */
-#define ADDRESS 0x06
-
-/*
- memory management routines
-*/
-static GLvoid *mem_alloc (GLsizei);
-static GLvoid mem_free (GLvoid **);
-static GLvoid *mem_realloc (GLvoid *, GLsizei, GLsizei);
-static GLubyte *str_duplicate (const GLubyte *);
-
-/*
- internal error messages
-*/
-static const GLubyte *OUT_OF_MEMORY =
- (GLubyte *) "internal error 1001: out of physical memory";
-static const GLubyte *UNRESOLVED_REFERENCE =
- (GLubyte *) "internal error 1002: unresolved reference '$'";
-/*
-static const GLubyte *INVALID_PARAMETER =
- (GLubyte *) "internal error 1003: invalid parameter";
-*/
-
-static const GLubyte *error_message = NULL;
-static GLubyte *error_param = NULL; /* this is inserted into error_message in place of $ */
-static GLint error_position = -1;
-
-static GLubyte *unknown = (GLubyte *) "???";
-
-static GLvoid
-clear_last_error (GLvoid)
-{
- /* reset error message */
- error_message = NULL;
-
- /* free error parameter - if error_param is a "???" don't free it - it's static */
- if (error_param != unknown)
- mem_free ((GLvoid **) & error_param);
- else
- error_param = NULL;
-
- /* reset error position */
- error_position = -1;
-}
-
-static GLvoid
-set_last_error (const GLubyte * msg, GLubyte * param, GLint pos)
-{
- if (error_message != NULL)
- return;
-
- error_message = msg;
- if (param != NULL)
- error_param = param;
- else
- error_param = unknown;
-
- error_position = pos;
-}
-
-/*
- * memory management routines
- */
-static GLvoid *
-mem_alloc (GLsizei size)
-{
- GLvoid *ptr = _mesa_malloc (size);
- if (ptr == NULL)
- set_last_error (OUT_OF_MEMORY, NULL, -1);
- return ptr;
-}
-
-static GLvoid
-mem_free (GLvoid ** ptr)
-{
- _mesa_free (*ptr);
- *ptr = NULL;
-}
-
-static GLvoid *
-mem_realloc (GLvoid * ptr, GLsizei old_size, GLsizei new_size)
-{
- GLvoid *ptr2 = _mesa_realloc (ptr, old_size, new_size);
- if (ptr2 == NULL)
- set_last_error (OUT_OF_MEMORY, NULL, -1);
- return ptr2;
-}
-
-static GLubyte *
-str_duplicate (const GLubyte * str)
-{
- return (GLubyte *) _mesa_strdup ((const char *) str);
-}
-
-/*
- * emit type typedef
- */
-typedef enum emit_type_
-{
- et_byte, /* explicit number */
- et_stream, /* eaten character */
- et_position /* current position */
-}
-emit_type;
-
-/*
- * emit typedef
- */
-typedef struct emit_
-{
- emit_type m_emit_type;
- GLubyte m_byte; /* et_byte */
- struct emit_ *m_next;
-}
-emit;
-
-static GLvoid
-emit_create (emit ** em)
-{
- *em = (emit *) mem_alloc (sizeof (emit));
- if (*em) {
- (**em).m_emit_type = et_byte;
- (**em).m_byte = 0;
- (**em).m_next = NULL;
- }
-}
-
-static GLvoid
-emit_destroy (emit ** em)
-{
- if (*em) {
- emit_destroy (&(**em).m_next);
- mem_free ((GLvoid **) em);
- }
-}
-
-static GLvoid
-emit_append (emit ** em, emit ** ne)
-{
- if (*em)
- emit_append (&(**em).m_next, ne);
- else
- *em = *ne;
-}
-
-/*
- * error typedef
- */
-typedef struct error_
-{
- GLubyte *m_text;
- GLubyte *m_token_name;
- struct defntn_ *m_token;
-}
-error;
-
-static GLvoid
-error_create (error ** er)
-{
- *er = (error *) mem_alloc (sizeof (error));
- if (*er) {
- (**er).m_text = NULL;
- (**er).m_token_name = NULL;
- (**er).m_token = NULL;
- }
-}
-
-static GLvoid
-error_destroy (error ** er)
-{
- if (*er) {
- mem_free ((GLvoid **) & (**er).m_text);
- mem_free ((GLvoid **) & (**er).m_token_name);
- mem_free ((GLvoid **) er);
- }
-}
-
-struct dict_;
-static GLubyte *error_get_token (error *, struct dict_ *, const GLubyte *, GLuint);
-
-/*
- * specifier type typedef
-*/
-typedef enum spec_type_
-{
- st_false,
- st_true,
- st_byte,
- st_byte_range,
- st_string,
- st_identifier,
- st_identifier_loop,
- st_debug
-} spec_type;
-
-
-/*
- * specifier typedef
- */
-typedef struct spec_
-{
- spec_type m_spec_type;
- GLubyte m_byte[2]; /* st_byte, st_byte_range */
- GLubyte *m_string; /* st_string */
- struct defntn_ *m_defntn; /* st_identifier, st_identifier_loop */
- emit *m_emits;
- error *m_errtext;
- struct spec_ *m_next;
-} spec;
-
-
-static GLvoid
-spec_create (spec ** sp)
-{
- *sp = (spec *) mem_alloc (sizeof (spec));
- if (*sp) {
- (**sp).m_spec_type = st_false;
- (**sp).m_byte[0] = '\0';
- (**sp).m_byte[1] = '\0';
- (**sp).m_string = NULL;
- (**sp).m_defntn = NULL;
- (**sp).m_emits = NULL;
- (**sp).m_errtext = NULL;
- (**sp).m_next = NULL;
- }
-}
-
-static GLvoid
-spec_destroy (spec ** sp)
-{
- if (*sp) {
- spec_destroy (&(**sp).m_next);
- emit_destroy (&(**sp).m_emits);
- error_destroy (&(**sp).m_errtext);
- mem_free ((GLvoid **) & (**sp).m_string);
- mem_free ((GLvoid **) sp);
- }
-}
-
-static GLvoid
-spec_append (spec ** sp, spec ** ns)
-{
- if (*sp)
- spec_append (&(**sp).m_next, ns);
- else
- *sp = *ns;
-}
-
-/*
- * operator typedef
- */
-typedef enum oper_
-{
- op_none,
- op_and,
- op_or
-} oper;
-
-
-/*
- * definition typedef
- */
-typedef struct defntn_
-{
- oper m_oper;
- spec *m_specs;
- struct defntn_ *m_next;
-#ifndef NDEBUG
- GLint m_referenced;
-#endif
-} defntn;
-
-
-static GLvoid
-defntn_create (defntn ** de)
-{
- *de = (defntn *) mem_alloc (sizeof (defntn));
- if (*de) {
- (**de).m_oper = op_none;
- (**de).m_specs = NULL;
- (**de).m_next = NULL;
-#ifndef NDEBUG
- (**de).m_referenced = 0;
-#endif
- }
-}
-
-static GLvoid
-defntn_destroy (defntn ** de)
-{
- if (*de) {
- defntn_destroy (&(**de).m_next);
- spec_destroy (&(**de).m_specs);
- mem_free ((GLvoid **) de);
- }
-}
-
-static GLvoid
-defntn_append (defntn ** de, defntn ** nd)
-{
- if (*de)
- defntn_append (&(**de).m_next, nd);
- else
- *de = *nd;
-}
-
-/*
- * dictionary typedef
- */
-typedef struct dict_
-{
- defntn *m_defntns;
- defntn *m_syntax;
- defntn *m_string;
- struct dict_ *m_next;
-} dict;
-
-
-static GLvoid
-dict_create (dict ** di)
-{
- *di = (dict *) mem_alloc (sizeof (dict));
- if (*di) {
- (**di).m_defntns = NULL;
- (**di).m_syntax = NULL;
- (**di).m_string = NULL;
- (**di).m_next = NULL;
- }
-}
-
-static GLvoid
-dict_destroy (dict ** di)
-{
- if (*di) {
- dict_destroy (&(**di).m_next);
- defntn_destroy (&(**di).m_defntns);
- mem_free ((GLvoid **) di);
- }
-}
-
-/*
- * GLubyte array typedef
- */
-typedef struct barray_
-{
- GLubyte *data;
- GLuint len;
-} barray;
-
-
-static GLvoid
-barray_create (barray ** ba)
-{
- *ba = (barray *) mem_alloc (sizeof (barray));
- if (*ba) {
- (**ba).data = NULL;
- (**ba).len = 0;
- }
-}
-
-static GLvoid
-barray_destroy (barray ** ba)
-{
- if (*ba) {
- mem_free ((GLvoid **) & (**ba).data);
- mem_free ((GLvoid **) ba);
- }
-}
-
-/*
- * reallocates GLubyte array to requested size,
- * returns 0 on success,
- * returns 1 otherwise
- */
-static GLint
-barray_resize (barray ** ba, GLuint nlen)
-{
- GLubyte *new_pointer;
-
- if (nlen == 0) {
- mem_free ((void **) &(**ba).data);
- (**ba).data = NULL;
- (**ba).len = 0;
-
- return 0;
- }
- else {
- new_pointer = (GLubyte *)
- mem_realloc ((**ba).data, (**ba).len * sizeof (GLubyte),
- nlen * sizeof (GLubyte));
- if (new_pointer) {
- (**ba).data = new_pointer;
- (**ba).len = nlen;
-
- return 0;
- }
- }
-
- return 1;
-}
-
-/*
- * adds GLubyte array pointed by *nb to the end of array pointed by *ba,
- * returns 0 on success,
- * returns 1 otherwise
- */
-static GLint
-barray_append (barray ** ba, barray ** nb)
-{
- GLuint i;
- const GLuint len = (**ba).len;
-
- if (barray_resize (ba, (**ba).len + (**nb).len))
- return 1;
-
- for (i = 0; i < (**nb).len; i++)
- (**ba).data[len + i] = (**nb).data[i];
-
- return 0;
-}
-
-
-/**
- * Adds emit chain pointed by em to the end of array pointed by *ba.
- * \return 0 on success, 1 otherwise.
- */
-static GLint
-barray_push (barray ** ba, emit * em, GLubyte c, GLuint pos)
-{
- emit *temp = em;
- GLuint count = 0;
-
- while (temp) {
- if (temp->m_emit_type == et_position)
- count += 4; /* position is a 32-bit unsigned integer */
- else
- count++;
-
- temp = temp->m_next;
- }
-
- if (barray_resize (ba, (**ba).len + count))
- return 1;
-
- while (em) {
- if (em->m_emit_type == et_byte)
- (**ba).data[(**ba).len - count--] = em->m_byte;
- else if (em->m_emit_type == et_stream)
- (**ba).data[(**ba).len - count--] = c;
-
- /* This is where the position is emitted into the stream */
- else { /* em->type == et_position */
-#if 0
- (**ba).data[(**ba).len - count--] = (GLubyte) pos,
- (**ba).data[(**ba).len - count--] = (GLubyte) (pos >> 8),
- (**ba).data[(**ba).len - count--] = (GLubyte) (pos >> 16),
- (**ba).data[(**ba).len - count--] = (GLubyte) (pos >> 24);
-#else
- (**ba).data[(**ba).len - count--] = (GLubyte) pos;
- (**ba).data[(**ba).len - count--] = (GLubyte) (pos / 0x100);
- (**ba).data[(**ba).len - count--] = (GLubyte) (pos / 0x10000);
- (**ba).data[(**ba).len - count--] = (GLubyte) (pos / 0x1000000);
-#endif
- }
-
- em = em->m_next;
- }
-
- return 0;
-}
-
-/**
- * string to string map typedef
- */
-typedef struct map_str_
-{
- GLubyte *key;
- GLubyte *data;
- struct map_str_ *next;
-} map_str;
-
-
-static GLvoid
-map_str_create (map_str ** ma)
-{
- *ma = (map_str *) mem_alloc (sizeof (map_str));
- if (*ma) {
- (**ma).key = NULL;
- (**ma).data = NULL;
- (**ma).next = NULL;
- }
-}
-
-static GLvoid
-map_str_destroy (map_str ** ma)
-{
- if (*ma) {
- map_str_destroy (&(**ma).next);
- mem_free ((GLvoid **) & (**ma).key);
- mem_free ((GLvoid **) & (**ma).data);
- mem_free ((GLvoid **) ma);
- }
-}
-
-static GLvoid
-map_str_append (map_str ** ma, map_str ** nm)
-{
- if (*ma)
- map_str_append (&(**ma).next, nm);
- else
- *ma = *nm;
-}
-
-/**
- * searches the map for specified key,
- * if the key is matched, *data is filled with data associated with the key,
- * \return 0 if the key is matched, 1 otherwise
- */
-static GLint
-map_str_find (map_str ** ma, const GLubyte * key, GLubyte ** data)
-{
- while (*ma) {
- if (strcmp ((const char *) (**ma).key, (const char *) key) == 0) {
- *data = str_duplicate ((**ma).data);
- if (*data == NULL)
- return 1;
-
- return 0;
- }
-
- ma = &(**ma).next;
- }
-
- set_last_error (UNRESOLVED_REFERENCE, str_duplicate (key), -1);
- return 1;
-}
-
-/**
- * string to GLubyte map typedef
- */
-typedef struct map_byte_
-{
- GLubyte *key;
- GLubyte data;
- struct map_byte_ *next;
-} map_byte;
-
-static GLvoid
-map_byte_create (map_byte ** ma)
-{
- *ma = (map_byte *) mem_alloc (sizeof (map_byte));
- if (*ma) {
- (**ma).key = NULL;
- (**ma).data = 0;
- (**ma).next = NULL;
- }
-}
-
-static GLvoid
-map_byte_destroy (map_byte ** ma)
-{
- if (*ma) {
- map_byte_destroy (&(**ma).next);
- mem_free ((GLvoid **) & (**ma).key);
- mem_free ((GLvoid **) ma);
- }
-}
-
-static GLvoid
-map_byte_append (map_byte ** ma, map_byte ** nm)
-{
- if (*ma)
- map_byte_append (&(**ma).next, nm);
- else
- *ma = *nm;
-}
-
-/**
- * Searches the map for specified key,
- * If the key is matched, *data is filled with data associated with the key,
- * \return 0 if the is matched, 1 otherwise
- */
-static GLint
-map_byte_find (map_byte ** ma, const GLubyte * key, GLubyte * data)
-{
- while (*ma) {
- if (strcmp ((const char *) (**ma).key, (const char *) key) == 0) {
- *data = (**ma).data;
- return 0;
- }
-
- ma = &(**ma).next;
- }
-
- set_last_error (UNRESOLVED_REFERENCE, str_duplicate (key), -1);
- return 1;
-}
-
-/*
- * string to defntn map typedef
- */
-typedef struct map_def_
-{
- GLubyte *key;
- defntn *data;
- struct map_def_ *next;
-} map_def;
-
-static GLvoid
-map_def_create (map_def ** ma)
-{
- *ma = (map_def *) mem_alloc (sizeof (map_def));
- if (*ma) {
- (**ma).key = NULL;
- (**ma).data = NULL;
- (**ma).next = NULL;
- }
-}
-
-static GLvoid
-map_def_destroy (map_def ** ma)
-{
- if (*ma) {
- map_def_destroy (&(**ma).next);
- mem_free ((GLvoid **) & (**ma).key);
- mem_free ((GLvoid **) ma);
- }
-}
-
-static GLvoid
-map_def_append (map_def ** ma, map_def ** nm)
-{
- if (*ma)
- map_def_append (&(**ma).next, nm);
- else
- *ma = *nm;
-}
-
-/**
- * searches the map for specified key,
- * if the key is matched, *data is filled with data associated with the key,
- * \return 0 if the is matched, 1 otherwise
- */
-static GLint
-map_def_find (map_def ** ma, const GLubyte * key, defntn ** data)
-{
- while (*ma) {
- if (_mesa_strcmp ((const char *) (**ma).key, (const char *) key) == 0) {
- *data = (**ma).data;
-
- return 0;
- }
-
- ma = &(**ma).next;
- }
-
- set_last_error (UNRESOLVED_REFERENCE, str_duplicate (key), -1);
- return 1;
-}
-
-/*
- * returns 1 if given character is a space,
- * returns 0 otherwise
- */
-static GLint
-is_space (GLubyte c)
-{
- return c == ' ' || c == '\t' || c == '\n' || c == '\r';
-}
-
-/*
- * advances text pointer by 1 if character pointed by *text is a space,
- * returns 1 if a space has been eaten,
- * returns 0 otherwise
- */
-static GLint
-eat_space (const GLubyte ** text)
-{
- if (is_space (**text)) {
- (*text)++;
-
- return 1;
- }
-
- return 0;
-}
-
-/*
- * returns 1 if text points to C-style comment start string "/ *",
- * returns 0 otherwise
- */
-static GLint
-is_comment_start (const GLubyte * text)
-{
- return text[0] == '/' && text[1] == '*';
-}
-
-/*
- * advances text pointer to first character after C-style comment block - if any,
- * returns 1 if C-style comment block has been encountered and eaten,
- * returns 0 otherwise
- */
-static GLint
-eat_comment (const GLubyte ** text)
-{
- if (is_comment_start (*text)) {
- /* *text points to comment block - skip two characters to enter comment body */
- *text += 2;
- /* skip any character except consecutive '*' and '/' */
- while (!((*text)[0] == '*' && (*text)[1] == '/'))
- (*text)++;
- /* skip those two terminating characters */
- *text += 2;
-
- return 1;
- }
-
- return 0;
-}
-
-/*
- * advances text pointer to first character that is neither space nor C-style comment block
- */
-static GLvoid
-eat_spaces (const GLubyte ** text)
-{
- while (eat_space (text) || eat_comment (text));
-}
-
-/*
- * resizes string pointed by *ptr to successfully add character c to the end of the string,
- * returns 0 on success,
- * returns 1 otherwise
- */
-static GLint
-string_grow (GLubyte ** ptr, GLuint * len, GLubyte c)
-{
- /* reallocate the string in 16-length increments */
- if ((*len & 0x0F) == 0x0F || *ptr == NULL) {
- GLubyte *tmp = (GLubyte *) mem_realloc (*ptr, (*len) * sizeof (GLubyte),
- ((*len + 1 + 1 +
- 0x0F) & ~0x0F) * sizeof (GLubyte));
- if (tmp == NULL)
- return 1;
-
- *ptr = tmp;
- }
-
- if (c) {
- /* append given character */
- (*ptr)[*len] = c;
- (*len)++;
- }
- (*ptr)[*len] = '\0';
-
- return 0;
-}
-
-/*
- * returns 1 if given character is valid identifier character a-z, A-Z, 0-9 or _
- * returns 0 otherwise
- */
-static GLint
-is_identifier (GLubyte c)
-{
- return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') ||
- (c >= '0' && c <= '9') || c == '_';
-}
-
-/*
- * copies characters from *text to *id until non-identifier character is encountered,
- * assumes that *id points to NULL object - caller is responsible for later freeing the string,
- * text pointer is advanced to point past the copied identifier,
- * returns 0 if identifier was successfully copied,
- * returns 1 otherwise
- */
-static GLint
-get_identifier (const GLubyte ** text, GLubyte ** id)
-{
- const GLubyte *t = *text;
- GLubyte *p = NULL;
- GLuint len = 0;
-
- if (string_grow (&p, &len, '\0'))
- return 1;
-
- /* loop while next character in buffer is valid for identifiers */
- while (is_identifier (*t)) {
- if (string_grow (&p, &len, *t++)) {
- mem_free ((GLvoid **) & p);
- return 1;
- }
- }
-
- *text = t;
- *id = p;
-
- return 0;
-}
-
-/*
- * returns 1 if given character is HEX digit 0-9, A-F or a-f,
- * returns 0 otherwise
- */
-static GLint
-is_hex (GLubyte c)
-{
- return (c >= '0' && c <= '9') || (c >= 'A' && c <= 'F') || (c >= 'a'
- && c <= 'f');
-}
-
-/*
- * returns value of passed character as if it was HEX digit
- */
-static GLuint
-hex2dec (GLubyte c)
-{
- if (c >= '0' && c <= '9')
- return c - '0';
- if (c >= 'A' && c <= 'F')
- return c - 'A' + 10;
- return c - 'a' + 10;
-}
-
-/*
- * converts sequence of HEX digits pointed by *text until non-HEX digit is encountered,
- * advances text pointer past the converted sequence,
- * returns the converted value
- */
-static GLuint
-hex_convert (const GLubyte ** text)
-{
- GLuint value = 0;
-
- while (is_hex (**text)) {
- value = value * 0x10 + hex2dec (**text);
- (*text)++;
- }
-
- return value;
-}
-
-/*
- * returns 1 if given character is OCT digit 0-7,
- * returns 0 otherwise
- */
-static GLint
-is_oct (GLubyte c)
-{
- return c >= '0' && c <= '7';
-}
-
-/*
- * returns value of passed character as if it was OCT digit
- */
-static GLint
-oct2dec (GLubyte c)
-{
- return c - '0';
-}
-
-static GLubyte
-get_escape_sequence (const GLubyte ** text)
-{
- GLint value = 0;
-
- /* skip '\' character */
- (*text)++;
-
- switch (*(*text)++) {
- case '\'':
- return '\'';
- case '"':
- return '\"';
- case '?':
- return '\?';
- case '\\':
- return '\\';
- case 'a':
- return '\a';
- case 'b':
- return '\b';
- case 'f':
- return '\f';
- case 'n':
- return '\n';
- case 'r':
- return '\r';
- case 't':
- return '\t';
- case 'v':
- return '\v';
- case 'x':
- return (GLubyte) hex_convert (text);
- }
-
- (*text)--;
- if (is_oct (**text)) {
- value = oct2dec (*(*text)++);
- if (is_oct (**text)) {
- value = value * 010 + oct2dec (*(*text)++);
- if (is_oct (**text))
- value = value * 010 + oct2dec (*(*text)++);
- }
- }
-
- return (GLubyte) value;
-}
-
-/*
- * copies characters from *text to *str until " or ' character is encountered,
- * assumes that *str points to NULL object - caller is responsible for later freeing the string,
- * assumes that *text points to " or ' character that starts the string,
- * text pointer is advanced to point past the " or ' character,
- * returns 0 if string was successfully copied,
- * returns 1 otherwise
- */
-static GLint
-get_string (const GLubyte ** text, GLubyte ** str)
-{
- const GLubyte *t = *text;
- GLubyte *p = NULL;
- GLuint len = 0;
- GLubyte term_char;
-
- if (string_grow (&p, &len, '\0'))
- return 1;
-
- /* read " or ' character that starts the string */
- term_char = *t++;
- /* while next character is not the terminating character */
- while (*t && *t != term_char) {
- GLubyte c;
-
- if (*t == '\\')
- c = get_escape_sequence (&t);
- else
- c = *t++;
-
- if (string_grow (&p, &len, c)) {
- mem_free ((GLvoid **) & p);
- return 1;
- }
- }
-
- /* skip " or ' character that ends the string */
- t++;
-
- *text = t;
- *str = p;
- return 0;
-}
-
-/*
- * gets emit code, the syntax is: ".emtcode" " " <symbol> " " ("0x" | "0X") <hex_value>
- * assumes that *text already points to <symbol>,
- * returns 0 if emit code is successfully read,
- * returns 1 otherwise
- */
-static GLint
-get_emtcode (const GLubyte ** text, map_byte ** ma)
-{
- const GLubyte *t = *text;
- map_byte *m = NULL;
-
- map_byte_create (&m);
- if (m == NULL)
- return 1;
-
- if (get_identifier (&t, &m->key)) {
- map_byte_destroy (&m);
- return 1;
- }
- eat_spaces (&t);
-
- if (*t == '\'') {
- GLubyte *c;
-
- if (get_string (&t, &c)) {
- map_byte_destroy (&m);
- return 1;
- }
-
- m->data = (GLubyte) c[0];
- mem_free ((GLvoid **) & c);
- }
- else {
- /* skip HEX "0x" or "0X" prefix */
- t += 2;
- m->data = (GLubyte) hex_convert (&t);
- }
-
- eat_spaces (&t);
-
- *text = t;
- *ma = m;
- return 0;
-}
-
-/*
- * returns 0 on success,
- * returns 1 otherwise
- */
-static GLint
-get_errtext (const GLubyte ** text, map_str ** ma)
-{
- const GLubyte *t = *text;
- map_str *m = NULL;
-
- map_str_create (&m);
- if (m == NULL)
- return 1;
-
- if (get_identifier (&t, &m->key)) {
- map_str_destroy (&m);
- return 1;
- }
- eat_spaces (&t);
-
- if (get_string (&t, &m->data)) {
- map_str_destroy (&m);
- return 1;
- }
- eat_spaces (&t);
-
- *text = t;
- *ma = m;
- return 0;
-}
-
-/*
- * returns 0 on success,
- * returns 1 otherwise,
- */
-static GLint
-get_error (const GLubyte ** text, error ** er, map_str * maps)
-{
- const GLubyte *t = *text;
- GLubyte *temp = NULL;
-
- if (*t != '.')
- return 0;
-
- t++;
- if (get_identifier (&t, &temp))
- return 1;
- eat_spaces (&t);
-
- if (_mesa_strcmp ("error", (char *) temp) != 0) {
- mem_free ((GLvoid **) & temp);
- return 0;
- }
-
- mem_free ((GLvoid **) & temp);
-
- error_create (er);
- if (*er == NULL)
- return 1;
-
- if (*t == '\"') {
- if (get_string (&t, &(**er).m_text)) {
- error_destroy (er);
- return 1;
- }
- eat_spaces (&t);
- }
- else {
- if (get_identifier (&t, &temp)) {
- error_destroy (er);
- return 1;
- }
- eat_spaces (&t);
-
- if (map_str_find (&maps, temp, &(**er).m_text)) {
- mem_free ((GLvoid **) & temp);
- error_destroy (er);
- return 1;
- }
-
- mem_free ((GLvoid **) & temp);
- }
-
- /* try to extract "token" from "...$token$..." */
- {
- char *processed = NULL;
- GLuint len = 0, i = 0;
-
- if (string_grow ((GLubyte **) (&processed), &len, '\0')) {
- error_destroy (er);
- return 1;
- }
-
- while (i < _mesa_strlen ((char *) ((**er).m_text))) {
- /* check if the dollar sign is repeated - if so skip it */
- if ((**er).m_text[i] == '$' && (**er).m_text[i + 1] == '$') {
- if (string_grow ((GLubyte **) (&processed), &len, '$')) {
- mem_free ((GLvoid **) & processed);
- error_destroy (er);
- return 1;
- }
-
- i += 2;
- }
- else if ((**er).m_text[i] != '$') {
- if (string_grow ((GLubyte **) (&processed), &len, (**er).m_text[i])) {
- mem_free ((GLvoid **) & processed);
- error_destroy (er);
- return 1;
- }
-
- i++;
- }
- else {
- if (string_grow ((GLubyte **) (&processed), &len, '$')) {
- mem_free ((GLvoid **) & processed);
- error_destroy (er);
- return 1;
- }
-
- {
- /* length of token being extracted */
- GLuint tlen = 0;
-
- if (string_grow (&(**er).m_token_name, &tlen, '\0')) {
- mem_free ((GLvoid **) & processed);
- error_destroy (er);
- return 1;
- }
-
- /* skip the dollar sign */
- i++;
-
- while ((**er).m_text[i] != '$') {
- if (string_grow
- (&(**er).m_token_name, &tlen, (**er).m_text[i])) {
- mem_free ((GLvoid **) & processed);
- error_destroy (er);
- return 1;
- }
-
- i++;
- }
-
- /* skip the dollar sign */
- i++;
- }
- }
- }
-
- mem_free ((GLvoid **) & (**er).m_text);
- (**er).m_text = (GLubyte *) processed;
- }
-
- *text = t;
- return 0;
-}
-
-/*
- * returns 0 on success,
- * returns 1 otherwise,
- */
-static GLint
-get_emits (const GLubyte ** text, emit ** em, map_byte * mapb)
-{
- const GLubyte *t = *text;
- GLubyte *temp = NULL;
- emit *e = NULL;
-
- if (*t != '.')
- return 0;
-
- t++;
- if (get_identifier (&t, &temp))
- return 1;
- eat_spaces (&t);
-
- /* .emit */
- if (_mesa_strcmp ("emit", (char *) temp) != 0) {
- mem_free ((GLvoid **) & temp);
- return 0;
- }
-
- mem_free ((GLvoid **) & temp);
-
- emit_create (&e);
- if (e == NULL)
- return 1;
-
- /* 0xNN */
- if (*t == '0') {
- t += 2;
- e->m_byte = (GLubyte) hex_convert (&t);
-
- e->m_emit_type = et_byte;
- }
- /* * */
- else if (*t == '*') {
- t++;
-
- e->m_emit_type = et_stream;
- }
- /* $ */
- else if (*t == '$') {
- t++;
-
- e->m_emit_type = et_position;
- }
- /* 'c' */
- else if (*t == '\'') {
- if (get_string (&t, &temp)) {
- emit_destroy (&e);
- return 1;
- }
- e->m_byte = (GLubyte) temp[0];
-
- mem_free ((GLvoid **) & temp);
-
- e->m_emit_type = et_byte;
- }
- else {
- if (get_identifier (&t, &temp)) {
- emit_destroy (&e);
- return 1;
- }
-
- if (map_byte_find (&mapb, temp, &e->m_byte)) {
- mem_free ((GLvoid **) & temp);
- emit_destroy (&e);
- return 1;
- }
-
- mem_free ((GLvoid **) & temp);
-
- e->m_emit_type = et_byte;
- }
-
- eat_spaces (&t);
-
- if (get_emits (&t, &e->m_next, mapb)) {
- emit_destroy (&e);
- return 1;
- }
-
- *text = t;
- *em = e;
- return 0;
-}
-
-/*
- * returns 0 on success,
- * returns 1 otherwise,
- */
-static GLint
-get_spec (const GLubyte ** text, spec ** sp, map_str * maps, map_byte * mapb)
-{
- const GLubyte *t = *text;
- spec *s = NULL;
-
- spec_create (&s);
- if (s == NULL)
- return 1;
-
- if (*t == '\'') {
- GLubyte *temp = NULL;
-
- if (get_string (&t, &temp)) {
- spec_destroy (&s);
- return 1;
- }
- eat_spaces (&t);
-
- if (*t == '-') {
- GLubyte *temp2 = NULL;
-
- /* skip the '-' character */
- t++;
- eat_spaces (&t);
-
- if (get_string (&t, &temp2)) {
- mem_free ((GLvoid **) & temp);
- spec_destroy (&s);
- return 1;
- }
- eat_spaces (&t);
-
- s->m_spec_type = st_byte_range;
- s->m_byte[0] = *temp;
- s->m_byte[1] = *temp2;
-
- mem_free ((GLvoid **) & temp2);
- }
- else {
- s->m_spec_type = st_byte;
- *s->m_byte = *temp;
- }
-
- mem_free ((GLvoid **) & temp);
- }
- else if (*t == '"') {
- if (get_string (&t, &s->m_string)) {
- spec_destroy (&s);
- return 1;
- }
- eat_spaces (&t);
-
- s->m_spec_type = st_string;
- }
- else if (*t == '.') {
- GLubyte *keyword = NULL;
-
- /* skip the dot */
- t++;
-
- if (get_identifier (&t, &keyword)) {
- spec_destroy (&s);
- return 1;
- }
- eat_spaces (&t);
-
- /* .true */
- if (_mesa_strcmp ("true", (char *) keyword) == 0) {
- s->m_spec_type = st_true;
- }
- /* .false */
- else if (_mesa_strcmp ("false", (char *) keyword) == 0) {
- s->m_spec_type = st_false;
- }
- /* .debug */
- else if (_mesa_strcmp ("debug", (char *) keyword) == 0) {
- s->m_spec_type = st_debug;
- }
- /* .loop */
- else if (_mesa_strcmp ("loop", (char *) keyword) == 0) {
- if (get_identifier (&t, &s->m_string)) {
- mem_free ((GLvoid **) & keyword);
- spec_destroy (&s);
- return 1;
- }
- eat_spaces (&t);
-
- s->m_spec_type = st_identifier_loop;
- }
-
- mem_free ((GLvoid **) & keyword);
- }
- else {
- if (get_identifier (&t, &s->m_string)) {
- spec_destroy (&s);
- return 1;
- }
- eat_spaces (&t);
-
- s->m_spec_type = st_identifier;
- }
-
- if (get_error (&t, &s->m_errtext, maps)) {
- spec_destroy (&s);
- return 1;
- }
-
- if (get_emits (&t, &s->m_emits, mapb)) {
- spec_destroy (&s);
- return 1;
- }
-
- *text = t;
- *sp = s;
- return 0;
-}
-
-/*
- * returns 0 on success,
- * returns 1 otherwise,
- */
-static GLint
-get_definition (const GLubyte ** text, defntn ** de, map_str * maps,
- map_byte * mapb)
-{
- const GLubyte *t = *text;
- defntn *d = NULL;
-
- defntn_create (&d);
- if (d == NULL)
- return 1;
-
- if (get_spec (&t, &d->m_specs, maps, mapb)) {
- defntn_destroy (&d);
- return 1;
- }
-
- while (*t != ';') {
- GLubyte *op = NULL;
- spec *sp = NULL;
-
- /* skip the dot that precedes "and" or "or" */
- t++;
-
- /* read "and" or "or" keyword */
- if (get_identifier (&t, &op)) {
- defntn_destroy (&d);
- return 1;
- }
- eat_spaces (&t);
-
- if (d->m_oper == op_none) {
- /* .and */
- if (_mesa_strcmp ("and", (char *) op) == 0)
- d->m_oper = op_and;
- /* .or */
- else
- d->m_oper = op_or;
- }
-
- mem_free ((GLvoid **) & op);
-
- if (get_spec (&t, &sp, maps, mapb)) {
- defntn_destroy (&d);
- return 1;
- }
-
- spec_append (&d->m_specs, &sp);
- }
-
- /* skip the semicolon */
- t++;
- eat_spaces (&t);
-
- *text = t;
- *de = d;
- return 0;
-}
-
-/*
- * returns 0 on success,
- * returns 1 otherwise,
- */
-static GLint
-update_dependency (map_def * mapd, GLubyte * symbol, defntn ** def)
-{
- if (map_def_find (&mapd, symbol, def))
- return 1;
-
-#ifndef NDEBUG
- (**def).m_referenced = 1;
-#endif
-
- return 0;
-}
-
-/*
- * returns 0 on success,
- * returns 1 otherwise,
- */
-static GLint
-update_dependencies (dict * di, map_def * mapd, GLubyte ** syntax_symbol,
- GLubyte ** string_symbol)
-{
- defntn *de = di->m_defntns;
-
- if (update_dependency (mapd, *syntax_symbol, &di->m_syntax) ||
- (*string_symbol != NULL
- && update_dependency (mapd, *string_symbol, &di->m_string)))
- return 1;
-
- mem_free ((GLvoid **) syntax_symbol);
- mem_free ((GLvoid **) string_symbol);
-
- while (de) {
- spec *sp = de->m_specs;
-
- while (sp) {
- if (sp->m_spec_type == st_identifier
- || sp->m_spec_type == st_identifier_loop) {
- if (update_dependency (mapd, sp->m_string, &sp->m_defntn))
- return 1;
-
- mem_free ((GLvoid **) & sp->m_string);
- }
-
- if (sp->m_errtext && sp->m_errtext->m_token_name) {
- if (update_dependency
- (mapd, sp->m_errtext->m_token_name, &sp->m_errtext->m_token))
- return 1;
-
- mem_free ((GLvoid **) & sp->m_errtext->m_token_name);
- }
-
- sp = sp->m_next;
- }
-
- de = de->m_next;
- }
-
- return 0;
-}
-
-typedef enum match_result_
-{
- mr_not_matched, /* the examined string does not match */
- mr_matched, /* the examined string matches */
- mr_error_raised, /* mr_not_matched + error has been raised */
- mr_dont_emit, /* used by identifier loops only */
- mr_internal_error /* an internal error has occured such as out of memory */
-} match_result;
-
-static match_result
-match (dict * di, const GLubyte * text, GLuint * index, defntn * de,
- barray ** ba, GLint filtering_string)
-{
- GLuint ind = *index;
- match_result status = mr_not_matched;
- spec *sp = de->m_specs;
-
- /* for every specifier in the definition */
- while (sp) {
- GLuint i, len, save_ind = ind;
- barray *array = NULL;
-
- switch (sp->m_spec_type) {
- case st_identifier:
- barray_create (&array);
- if (array == NULL)
- return mr_internal_error;
-
- status =
- match (di, text, &ind, sp->m_defntn, &array, filtering_string);
- if (status == mr_internal_error) {
- barray_destroy (&array);
- return mr_internal_error;
- }
- break;
- case st_string:
- len = _mesa_strlen ((char *) (sp->m_string));
-
- /* prefilter the stream */
- if (!filtering_string && di->m_string) {
- barray *ba;
- GLuint filter_index = 0;
- match_result result;
-
- barray_create (&ba);
- if (ba == NULL)
- return mr_internal_error;
-
- result =
- match (di, text + ind, &filter_index, di->m_string, &ba, 1);
-
- if (result == mr_internal_error) {
- barray_destroy (&ba);
- return mr_internal_error;
- }
-
- if (result != mr_matched) {
- barray_destroy (&ba);
- status = mr_not_matched;
- break;
- }
-
- barray_destroy (&ba);
-
- if (filter_index != len
- || _mesa_strncmp ((char *)sp->m_string, (char *)(text + ind), len)) {
- status = mr_not_matched;
- break;
- }
-
- status = mr_matched;
- ind += len;
- }
- else {
- status = mr_matched;
- for (i = 0; status == mr_matched && i < len; i++)
- if (text[ind + i] != sp->m_string[i])
- status = mr_not_matched;
- if (status == mr_matched)
- ind += len;
- }
- break;
- case st_byte:
- status = text[ind] == *sp->m_byte ? mr_matched : mr_not_matched;
- if (status == mr_matched)
- ind++;
- break;
- case st_byte_range:
- status = (text[ind] >= sp->m_byte[0]
- && text[ind] <=
- sp->m_byte[1]) ? mr_matched : mr_not_matched;
- if (status == mr_matched)
- ind++;
- break;
- case st_true:
- status = mr_matched;
- break;
- case st_false:
- status = mr_not_matched;
- break;
- case st_debug:
- status = mr_matched;
- break;
- case st_identifier_loop:
- barray_create (&array);
- if (array == NULL)
- return mr_internal_error;
-
- status = mr_dont_emit;
- for (;;) {
- match_result result;
-
- save_ind = ind;
- result =
- match (di, text, &ind, sp->m_defntn, &array,
- filtering_string);
-
- if (result == mr_error_raised) {
- status = result;
- break;
- }
- else if (result == mr_matched) {
- if (barray_push (ba, sp->m_emits, text[ind - 1], save_ind)
- || barray_append (ba, &array)) {
- barray_destroy (&array);
- return mr_internal_error;
- }
- barray_destroy (&array);
- barray_create (&array);
- if (array == NULL)
- return mr_internal_error;
- }
- else if (result == mr_internal_error) {
- barray_destroy (&array);
- return mr_internal_error;
- }
- else
- break;
- }
- break;
- };
-
- if (status == mr_error_raised) {
- barray_destroy (&array);
-
- return mr_error_raised;
- }
-
- if (de->m_oper == op_and && status != mr_matched
- && status != mr_dont_emit) {
- barray_destroy (&array);
-
- if (sp->m_errtext) {
- set_last_error (sp->m_errtext->m_text,
- error_get_token (sp->m_errtext, di, text, ind),
- ind);
-
- return mr_error_raised;
- }
-
- return mr_not_matched;
- }
-
- if (status == mr_matched) {
- if (sp->m_emits)
- if (barray_push (ba, sp->m_emits, text[ind - 1], save_ind)) {
- barray_destroy (&array);
- return mr_internal_error;
- }
-
- if (array)
- if (barray_append (ba, &array)) {
- barray_destroy (&array);
- return mr_internal_error;
- }
- }
-
- barray_destroy (&array);
-
- if (de->m_oper == op_or
- && (status == mr_matched || status == mr_dont_emit)) {
- *index = ind;
- return mr_matched;
- }
-
- sp = sp->m_next;
- }
-
- if (de->m_oper == op_and
- && (status == mr_matched || status == mr_dont_emit)) {
- *index = ind;
- return mr_matched;
- }
-
- return mr_not_matched;
-}
-
-static GLubyte *
-error_get_token (error * er, dict * di, const GLubyte * text, unsigned int ind)
-{
- GLubyte *str = NULL;
-
- if (er->m_token) {
- barray *ba;
- GLuint filter_index = 0;
-
- barray_create (&ba);
- if (ba != NULL) {
- if (match (di, text + ind, &filter_index, er->m_token, &ba, 0) ==
- mr_matched && filter_index) {
- str = (GLubyte *) mem_alloc (filter_index + 1);
- if (str != NULL) {
- _mesa_strncpy ((char *) str, (char *) (text + ind),
- filter_index);
- str[filter_index] = '\0';
- }
- }
- barray_destroy (&ba);
- }
- }
-
- return str;
-}
-
-typedef struct grammar_load_state_
-{
- dict *di;
- GLubyte *syntax_symbol;
- GLubyte *string_symbol;
- map_str *maps;
- map_byte *mapb;
- map_def *mapd;
-} grammar_load_state;
-
-
-static GLvoid
-grammar_load_state_create (grammar_load_state ** gr)
-{
- *gr = (grammar_load_state *) mem_alloc (sizeof (grammar_load_state));
- if (*gr) {
- (**gr).di = NULL;
- (**gr).syntax_symbol = NULL;
- (**gr).string_symbol = NULL;
- (**gr).maps = NULL;
- (**gr).mapb = NULL;
- (**gr).mapd = NULL;
- }
-}
-
-static GLvoid
-grammar_load_state_destroy (grammar_load_state ** gr)
-{
- if (*gr) {
- dict_destroy (&(**gr).di);
- mem_free ((GLvoid **) &(**gr).syntax_symbol);
- mem_free ((GLvoid **) &(**gr).string_symbol);
- map_str_destroy (&(**gr).maps);
- map_byte_destroy (&(**gr).mapb);
- map_def_destroy (&(**gr).mapd);
- mem_free ((GLvoid **) gr);
- }
-}
-
-/*
- * the API
- */
-
-/*
- * loads grammar script from null-terminated ASCII text
- * returns the grammar object
- * returns NULL if an error occurs (call grammar_get_last_error to retrieve the error text)
- */
-
-static dict *
-grammar_load_from_text (const GLubyte * text)
-{
- dict *d = NULL;
- grammar_load_state *g = NULL;
-
- clear_last_error ();
-
- grammar_load_state_create (&g);
- if (g == NULL)
- return NULL;
-
- dict_create (&g->di);
- if (g->di == NULL) {
- grammar_load_state_destroy (&g);
- return NULL;
- }
-
- eat_spaces (&text);
-
- /* skip ".syntax" keyword */
- text += 7;
- eat_spaces (&text);
-
- /* retrieve root symbol */
- if (get_identifier (&text, &g->syntax_symbol)) {
- grammar_load_state_destroy (&g);
- return NULL;
- }
- eat_spaces (&text);
-
- /* skip semicolon */
- text++;
- eat_spaces (&text);
-
- while (*text) {
- GLubyte *symbol = NULL;
- GLint is_dot = *text == '.';
-
- if (is_dot)
- text++;
-
- if (get_identifier (&text, &symbol)) {
- grammar_load_state_destroy (&g);
- return NULL;
- }
- eat_spaces (&text);
-
- /* .emtcode */
- if (is_dot && _mesa_strcmp ((char *) symbol, "emtcode") == 0) {
- map_byte *ma = NULL;
-
- mem_free ((void **) &symbol);
-
- if (get_emtcode (&text, &ma)) {
- grammar_load_state_destroy (&g);
- return NULL;
- }
-
- map_byte_append (&g->mapb, &ma);
- }
- /* .errtext */
- else if (is_dot && _mesa_strcmp ((char *) symbol, "errtext") == 0) {
- map_str *ma = NULL;
-
- mem_free ((GLvoid **) &symbol);
-
- if (get_errtext (&text, &ma)) {
- grammar_load_state_destroy (&g);
- return NULL;
- }
-
- map_str_append (&g->maps, &ma);
- }
- /* .string */
- else if (is_dot && _mesa_strcmp ((char *) symbol, "string") == 0) {
- mem_free ((GLvoid **) (&symbol));
-
- if (g->di->m_string != NULL) {
- grammar_load_state_destroy (&g);
- return NULL;
- }
-
- if (get_identifier (&text, &g->string_symbol)) {
- grammar_load_state_destroy (&g);
- return NULL;
- }
-
- /* skip semicolon */
- eat_spaces (&text);
- text++;
- eat_spaces (&text);
- }
- else {
- defntn *de = NULL;
- map_def *ma = NULL;
-
- if (get_definition (&text, &de, g->maps, g->mapb)) {
- grammar_load_state_destroy (&g);
- return NULL;
- }
-
- defntn_append (&g->di->m_defntns, &de);
-
- /* if definition consist of only one specifier, give it an ".and" operator */
- if (de->m_oper == op_none)
- de->m_oper = op_and;
-
- map_def_create (&ma);
- if (ma == NULL) {
- grammar_load_state_destroy (&g);
- return NULL;
- }
-
- ma->key = symbol;
- ma->data = de;
- map_def_append (&g->mapd, &ma);
- }
- }
-
- if (update_dependencies
- (g->di, g->mapd, &g->syntax_symbol, &g->string_symbol)) {
- grammar_load_state_destroy (&g);
- return NULL;
- }
-
- d = g->di;
- g->di = NULL;
-
- grammar_load_state_destroy (&g);
-
- return d;
-}
-
-/**
- * checks if a null-terminated text matches given grammar
- * returns 0 on error (call grammar_get_last_error to retrieve the error text)
- * returns 1 on success, the prod points to newly allocated buffer with
- * production and size is filled with the production size
- *
- * \param id - The grammar returned from grammar_load_from_text()
- * \param text - The program string
- * \param production - The return parameter for the binary array holding the
- * parsed results
- * \param size - The return parameter for the size of production
- *
- * \return 1 on sucess, 0 on parser error
- */
-static GLint
-grammar_check (dict * di, const GLubyte * text, GLubyte ** production,
- GLuint *size)
-{
- barray *ba = NULL;
- GLuint index = 0;
-
- clear_last_error ();
-
- barray_create (&ba);
- if (ba == NULL)
- return 0;
-
- *production = NULL;
- *size = 0;
-
- if (match (di, text, &index, di->m_syntax, &ba, 0) != mr_matched) {
- barray_destroy (&ba);
- return 0;
- }
-
- *production = (GLubyte *) mem_alloc (ba->len * sizeof (GLubyte));
- if (*production == NULL) {
- barray_destroy (&ba);
- return 0;
- }
-
- _mesa_memcpy(*production, ba->data, ba->len * sizeof (GLubyte));
- *size = ba->len;
- barray_destroy (&ba);
-
- return 1;
-}
-
-static GLvoid
-grammar_get_last_error (GLubyte * text, GLint size, GLint *pos)
-{
- GLint len = 0, dots_made = 0;
- const GLubyte *p = error_message;
-
- *text = '\0';
-#define APPEND_CHARACTER(x) \
- do { \
- if (dots_made == 0) { \
- if (len < size - 1) { \
- text[len++] = (x); \
- text[len] = '\0'; \
- } \
- else { \
- GLint i; \
- for (i = 0; i < 3; i++) { \
- if (--len >= 0) { \
- text[len] = '.'; \
- } \
- } \
- dots_made = 1; \
- } \
- } \
- } while (0)
-
- if (p) {
- while (*p) {
- if (*p == '$') {
- const GLubyte *r = error_param;
-
- while (*r) {
- APPEND_CHARACTER (*r);
- r++;
- }
-
- p++;
- }
- else {
- APPEND_CHARACTER (*p);
- p++;
- }
- }
- }
- *pos = error_position;
-}
-
-/*-----------------------------------------------------------------------
- * From here on down is the semantic checking portion
- *
- */
-
-/**
- * Variable Table Handling functions
- */
-typedef enum
-{
- vt_none,
- vt_address,
- vt_attrib,
- vt_param,
- vt_temp,
- vt_output,
- vt_alias
-} var_type;
-
-
-/*
- * Setting an explicit field for each of the binding properties is a bit wasteful
- * of space, but it should be much more clear when reading later on..
- */
-struct var_cache
-{
- GLubyte *name;
- var_type type;
- GLuint address_binding; /* The index of the address register we should
- * be using */
- GLuint attrib_binding; /* For type vt_attrib, see nvfragprog.h for values */
- GLuint attrib_binding_idx; /* The index into the attrib register file corresponding
- * to the state in attrib_binding */
- GLuint attrib_is_generic; /* If the attrib was specified through a generic
- * vertex attrib */
- GLuint temp_binding; /* The index of the temp register we are to use */
- GLuint output_binding; /* For type vt_output, see nvfragprog.h for values */
- GLuint output_binding_idx; /* This is the index into the result register file
- * corresponding to the bound result state */
- struct var_cache *alias_binding; /* For type vt_alias, points to the var_cache entry
- * that this is aliased to */
- GLuint param_binding_type; /* {PROGRAM_STATE_VAR, PROGRAM_LOCAL_PARAM,
- * PROGRAM_ENV_PARAM} */
- GLuint param_binding_begin; /* This is the offset into the program_parameter_list where
- * the tokens representing our bound state (or constants)
- * start */
- GLuint param_binding_length; /* This is how many entries in the the program_parameter_list
- * we take up with our state tokens or constants. Note that
- * this is _not_ the same as the number of param registers
- * we eventually use */
- struct var_cache *next;
-};
-
-static GLvoid
-var_cache_create (struct var_cache **va)
-{
- *va = (struct var_cache *) _mesa_malloc (sizeof (struct var_cache));
- if (*va) {
- (**va).name = NULL;
- (**va).type = vt_none;
- (**va).attrib_binding = ~0;
- (**va).attrib_is_generic = 0;
- (**va).temp_binding = ~0;
- (**va).output_binding = ~0;
- (**va).output_binding_idx = ~0;
- (**va).param_binding_type = ~0;
- (**va).param_binding_begin = ~0;
- (**va).param_binding_length = ~0;
- (**va).alias_binding = NULL;
- (**va).next = NULL;
- }
-}
-
-static GLvoid
-var_cache_destroy (struct var_cache **va)
-{
- if (*va) {
- var_cache_destroy (&(**va).next);
- _mesa_free (*va);
- *va = NULL;
- }
-}
-
-static GLvoid
-var_cache_append (struct var_cache **va, struct var_cache *nv)
-{
- if (*va)
- var_cache_append (&(**va).next, nv);
- else
- *va = nv;
-}
-
-static struct var_cache *
-var_cache_find (struct var_cache *va, GLubyte * name)
-{
- struct var_cache *first = va;
-
- while (va) {
- if (!strcmp ( (const char*) name, (const char*) va->name)) {
- if (va->type == vt_alias)
- return var_cache_find (first, va->name);
- return va;
- }
-
- va = va->next;
- }
-
- return NULL;
-}
-
-/**
- * constructs an integer from 4 GLubytes in LE format
- */
-static GLuint
-parse_position (GLubyte ** inst)
-{
- GLuint value;
-
- value = (GLuint) (*(*inst)++);
- value += (GLuint) (*(*inst)++) * 0x100;
- value += (GLuint) (*(*inst)++) * 0x10000;
- value += (GLuint) (*(*inst)++) * 0x1000000;
-
- return value;
-}
-
-/**
- * This will, given a string, lookup the string as a variable name in the
- * var cache. If the name is found, the var cache node corresponding to the
- * var name is returned. If it is not found, a new entry is allocated
- *
- * \param I Points into the binary array where the string identifier begins
- * \param found 1 if the string was found in the var_cache, 0 if it was allocated
- * \return The location on the var_cache corresponding the the string starting at I
- */
-static struct var_cache *
-parse_string (GLubyte ** inst, struct var_cache **vc_head,
- struct arb_program *Program, GLuint * found)
-{
- GLubyte *i = *inst;
- struct var_cache *va = NULL;
-
- *inst += _mesa_strlen ((char *) i) + 1;
-
- va = var_cache_find (*vc_head, i);
-
- if (va) {
- *found = 1;
- return va;
- }
-
- *found = 0;
- var_cache_create (&va);
- va->name = i;
-
- var_cache_append (vc_head, va);
-
- return va;
-}
-
-static char *
-parse_string_without_adding (GLubyte ** inst, struct arb_program *Program)
-{
- GLubyte *i = *inst;
-
- *inst += _mesa_strlen ((char *) i) + 1;
-
- return (char *) i;
-}
-
-/**
- * \return 0 if sign is plus, 1 if sign is minus
- */
-static GLuint
-parse_sign (GLubyte ** inst)
-{
- /*return *(*inst)++ != '+'; */
-
- if (**inst == '-') {
- (*inst)++;
- return 1;
- }
- else if (**inst == '+') {
- (*inst)++;
- return 0;
- }
-
- return 0;
-}
-
-/**
- * parses and returns signed integer
- */
-static GLint
-parse_integer (GLubyte ** inst, struct arb_program *Program)
-{
- GLint sign;
- GLint value;
-
- /* check if *inst points to '+' or '-'
- * if yes, grab the sign and increment *inst
- */
- sign = parse_sign (inst);
-
- /* now check if *inst points to 0
- * if yes, increment the *inst and return the default value
- */
- if (**inst == 0) {
- (*inst)++;
- return 0;
- }
-
- /* parse the integer as you normally would do it */
- value = _mesa_atoi (parse_string_without_adding (inst, Program));
-
- /* now, after terminating 0 there is a position
- * to parse it - parse_position()
- */
- Program->Position = parse_position (inst);
-
- if (sign)
- value *= -1;
-
- return value;
-}
-
-/**
- */
-static GLfloat
-parse_float (GLubyte ** inst, struct arb_program *Program)
-{
- GLint tmp[5], denom;
- GLuint leading_zeros =0;
- GLfloat value = 0;
-
-#if 0
- tmp[0] = parse_sign (inst); /* This is the sign of the number + - >0, - -> 1 */
-#endif
- tmp[1] = parse_integer (inst, Program); /* This is the integer portion of the number */
-
- /* Now we grab the fractional portion of the number (the digits after
- * the .). We can have leading 0's here, which parse_integer will ignore,
- * so we'll check for those first
- */
- while ((**inst == '0') && ( *(*inst+1) != 0))
- {
- leading_zeros++;
- (*inst)++;
- }
- tmp[2] = parse_integer (inst, Program); /* This is the fractional portion of the number */
- tmp[3] = parse_sign (inst); /* This is the sign of the exponent */
- tmp[4] = parse_integer (inst, Program); /* This is the exponent */
-
- value = (GLfloat) tmp[1];
- denom = 1;
- while (denom < tmp[2])
- denom *= 10;
- denom *= (GLint) _mesa_pow( 10, leading_zeros );
- value += (GLfloat) tmp[2] / (GLfloat) denom;
-#if 0
- if (tmp[0])
- value *= -1;
-#endif
- value *= (GLfloat) _mesa_pow (10, (GLfloat) tmp[3] * (GLfloat) tmp[4]);
-
- return value;
-}
-
-
-/**
- */
-static GLfloat
-parse_signed_float (GLubyte ** inst, struct arb_program *Program)
-{
- GLint negate;
- GLfloat value;
-
- negate = parse_sign (inst);
-
- value = parse_float (inst, Program);
-
- if (negate)
- value *= -1;
-
- return value;
-}
-
-/**
- * This picks out a constant value from the parsed array. The constant vector is r
- * returned in the *values array, which should be of length 4.
- *
- * \param values - The 4 component vector with the constant value in it
- */
-static GLvoid
-parse_constant (GLubyte ** inst, GLfloat *values, struct arb_program *Program,
- GLboolean use)
-{
- GLuint components, i;
-
-
- switch (*(*inst)++) {
- case CONSTANT_SCALAR:
- if (use == GL_TRUE) {
- values[0] =
- values[1] =
- values[2] = values[3] = parse_float (inst, Program);
- }
- else {
- values[0] =
- values[1] =
- values[2] = values[3] = parse_signed_float (inst, Program);
- }
-
- break;
- case CONSTANT_VECTOR:
- values[0] = values[1] = values[2] = 0;
- values[3] = 1;
- components = *(*inst)++;
- for (i = 0; i < components; i++) {
- values[i] = parse_signed_float (inst, Program);
- }
- break;
- }
-}
-
-/**
- * \param offset The offset from the address register that we should
- * address
- *
- * \return 0 on sucess, 1 on error
- */
-static GLuint
-parse_relative_offset (GLcontext *ctx, GLubyte **inst, struct arb_program *Program,
- GLint *offset)
-{
- *offset = parse_integer(inst, Program);
- if ((*offset > 63) || (*offset < -64)) {
- _mesa_set_program_error (ctx, Program->Position,
- "Relative offset out of range");
- _mesa_error (ctx, GL_INVALID_OPERATION, "Relative offset %d out of range",
- *offset);
- return 1;
- }
-
- return 0;
-}
-
-/**
- * \param color 0 if color type is primary, 1 if color type is secondary
- * \return 0 on sucess, 1 on error
- */
-static GLuint
-parse_color_type (GLcontext * ctx, GLubyte ** inst, struct arb_program *Program,
- GLint * color)
-{
- *color = *(*inst)++ != COLOR_PRIMARY;
- return 0;
-}
-
-/**
- * Get an integer corresponding to a generic vertex attribute.
- *
- * \return 0 on sucess, 1 on error
- */
-static GLuint
-parse_generic_attrib_num(GLcontext *ctx, GLubyte ** inst,
- struct arb_program *Program, GLuint *attrib)
-{
- *attrib = parse_integer(inst, Program);
-
- if (*attrib > MAX_VERTEX_PROGRAM_ATTRIBS)
- {
- _mesa_set_program_error (ctx, Program->Position,
- "Invalid generic vertex attribute index");
- _mesa_error (ctx, GL_INVALID_OPERATION, "Invalid generic vertex attribute index");
-
- return 1;
- }
-
- return 0;
-}
-
-
-/**
- * \param coord The texture unit index
- * \return 0 on sucess, 1 on error
- */
-static GLuint
-parse_texcoord_num (GLcontext * ctx, GLubyte ** inst,
- struct arb_program *Program, GLuint * coord)
-{
- *coord = parse_integer (inst, Program);
-
- if (*coord >= ctx->Const.MaxTextureUnits) {
- _mesa_set_program_error (ctx, Program->Position,
- "Invalid texture unit index");
- _mesa_error (ctx, GL_INVALID_OPERATION, "Invalid texture unit index");
- return 1;
- }
-
- return 0;
-}
-
-/**
- * \param coord The weight index
- * \return 0 on sucess, 1 on error
- */
-static GLuint
-parse_weight_num (GLcontext * ctx, GLubyte ** inst, struct arb_program *Program,
- GLint * coord)
-{
- *coord = parse_integer (inst, Program);
-
- if ((*coord < 0) || (*coord >= 1)) {
- _mesa_set_program_error (ctx, Program->Position,
- "Invalid weight index");
- _mesa_error (ctx, GL_INVALID_OPERATION, "Invalid weight index");
- return 1;
- }
-
- return 0;
-}
-
-/**
- * \param coord The clip plane index
- * \return 0 on sucess, 1 on error
- */
-static GLuint
-parse_clipplane_num (GLcontext * ctx, GLubyte ** inst,
- struct arb_program *Program, GLint * coord)
-{
- *coord = parse_integer (inst, Program);
-
- if ((*coord < 0) || (*coord >= (GLint) ctx->Const.MaxClipPlanes)) {
- _mesa_set_program_error (ctx, Program->Position,
- "Invalid clip plane index");
- _mesa_error (ctx, GL_INVALID_OPERATION, "Invalid clip plane index");
- return 1;
- }
-
- return 0;
-}
-
-
-/**
- * \return 0 on front face, 1 on back face
- */
-static GLuint
-parse_face_type (GLubyte ** inst)
-{
- switch (*(*inst)++) {
- case FACE_FRONT:
- return 0;
-
- case FACE_BACK:
- return 1;
- }
- return 0;
-}
-
-
-/**
- * Given a matrix and a modifier token on the binary array, return tokens
- * that _mesa_fetch_state() [program.c] can understand.
- *
- * \param matrix - the matrix we are talking about
- * \param matrix_idx - the index of the matrix we have (for texture & program matricies)
- * \param matrix_modifier - the matrix modifier (trans, inv, etc)
- * \return 0 on sucess, 1 on failure
- */
-static GLuint
-parse_matrix (GLcontext * ctx, GLubyte ** inst, struct arb_program *Program,
- GLint * matrix, GLint * matrix_idx, GLint * matrix_modifier)
-{
- GLubyte mat = *(*inst)++;
-
- *matrix_idx = 0;
-
- switch (mat) {
- case MATRIX_MODELVIEW:
- *matrix = STATE_MODELVIEW;
- *matrix_idx = parse_integer (inst, Program);
- if (*matrix_idx > 0) {
- _mesa_set_program_error (ctx, Program->Position,
- "ARB_vertex_blend not supported\n");
- _mesa_error (ctx, GL_INVALID_OPERATION,
- "ARB_vertex_blend not supported\n");
- return 1;
- }
- break;
-
- case MATRIX_PROJECTION:
- *matrix = STATE_PROJECTION;
- break;
-
- case MATRIX_MVP:
- *matrix = STATE_MVP;
- break;
-
- case MATRIX_TEXTURE:
- *matrix = STATE_TEXTURE;
- *matrix_idx = parse_integer (inst, Program);
- if (*matrix_idx >= (GLint) ctx->Const.MaxTextureUnits) {
- _mesa_set_program_error (ctx, Program->Position,
- "Invalid Texture Unit");
- _mesa_error (ctx, GL_INVALID_OPERATION,
- "Invalid Texture Unit: %d", *matrix_idx);
- return 1;
- }
- break;
-
- /* This is not currently supported (ARB_matrix_palette) */
- case MATRIX_PALETTE:
- *matrix_idx = parse_integer (inst, Program);
- _mesa_set_program_error (ctx, Program->Position,
- "ARB_matrix_palette not supported\n");
- _mesa_error (ctx, GL_INVALID_OPERATION,
- "ARB_matrix_palette not supported\n");
- return 1;
- break;
-
- case MATRIX_PROGRAM:
- *matrix = STATE_PROGRAM;
- *matrix_idx = parse_integer (inst, Program);
- if (*matrix_idx >= (GLint) ctx->Const.MaxProgramMatrices) {
- _mesa_set_program_error (ctx, Program->Position,
- "Invalid Program Matrix");
- _mesa_error (ctx, GL_INVALID_OPERATION,
- "Invalid Program Matrix: %d", *matrix_idx);
- return 1;
- }
- break;
- }
-
- switch (*(*inst)++) {
- case MATRIX_MODIFIER_IDENTITY:
- *matrix_modifier = 0;
- break;
- case MATRIX_MODIFIER_INVERSE:
- *matrix_modifier = STATE_MATRIX_INVERSE;
- break;
- case MATRIX_MODIFIER_TRANSPOSE:
- *matrix_modifier = STATE_MATRIX_TRANSPOSE;
- break;
- case MATRIX_MODIFIER_INVTRANS:
- *matrix_modifier = STATE_MATRIX_INVTRANS;
- break;
- }
-
- return 0;
-}
-
-
-/**
- * This parses a state string (rather, the binary version of it) into
- * a 6-token sequence as described in _mesa_fetch_state() [program.c]
- *
- * \param inst - the start in the binary arry to start working from
- * \param state_tokens - the storage for the 6-token state description
- * \return - 0 on sucess, 1 on error
- */
-static GLuint
-parse_state_single_item (GLcontext * ctx, GLubyte ** inst,
- struct arb_program *Program, GLint * state_tokens)
-{
- switch (*(*inst)++) {
- case STATE_MATERIAL_PARSER:
- state_tokens[0] = STATE_MATERIAL;
- state_tokens[1] = parse_face_type (inst);
- switch (*(*inst)++) {
- case MATERIAL_AMBIENT:
- state_tokens[2] = STATE_AMBIENT;
- break;
- case MATERIAL_DIFFUSE:
- state_tokens[2] = STATE_DIFFUSE;
- break;
- case MATERIAL_SPECULAR:
- state_tokens[2] = STATE_SPECULAR;
- break;
- case MATERIAL_EMISSION:
- state_tokens[2] = STATE_EMISSION;
- break;
- case MATERIAL_SHININESS:
- state_tokens[2] = STATE_SHININESS;
- break;
- }
- break;
-
- case STATE_LIGHT_PARSER:
- state_tokens[0] = STATE_LIGHT;
- state_tokens[1] = parse_integer (inst, Program);
-
- /* Check the value of state_tokens[1] against the # of lights */
- if (state_tokens[1] >= (GLint) ctx->Const.MaxLights) {
- _mesa_set_program_error (ctx, Program->Position,
- "Invalid Light Number");
- _mesa_error (ctx, GL_INVALID_OPERATION,
- "Invalid Light Number: %d", state_tokens[1]);
- return 1;
- }
-
- switch (*(*inst)++) {
- case LIGHT_AMBIENT:
- state_tokens[2] = STATE_AMBIENT;
- break;
- case LIGHT_DIFFUSE:
- state_tokens[2] = STATE_DIFFUSE;
- break;
- case LIGHT_SPECULAR:
- state_tokens[2] = STATE_SPECULAR;
- break;
- case LIGHT_POSITION:
- state_tokens[2] = STATE_POSITION;
- break;
- case LIGHT_ATTENUATION:
- state_tokens[2] = STATE_ATTENUATION;
- break;
- case LIGHT_HALF:
- state_tokens[2] = STATE_HALF;
- break;
- case LIGHT_SPOT_DIRECTION:
- state_tokens[2] = STATE_SPOT_DIRECTION;
- break;
- }
- break;
-
- case STATE_LIGHT_MODEL:
- switch (*(*inst)++) {
- case LIGHT_MODEL_AMBIENT:
- state_tokens[0] = STATE_LIGHTMODEL_AMBIENT;
- break;
- case LIGHT_MODEL_SCENECOLOR:
- state_tokens[0] = STATE_LIGHTMODEL_SCENECOLOR;
- state_tokens[1] = parse_face_type (inst);
- break;
- }
- break;
-
- case STATE_LIGHT_PROD:
- state_tokens[0] = STATE_LIGHTPROD;
- state_tokens[1] = parse_integer (inst, Program);
-
- /* Check the value of state_tokens[1] against the # of lights */
- if (state_tokens[1] >= (GLint) ctx->Const.MaxLights) {
- _mesa_set_program_error (ctx, Program->Position,
- "Invalid Light Number");
- _mesa_error (ctx, GL_INVALID_OPERATION,
- "Invalid Light Number: %d", state_tokens[1]);
- return 1;
- }
-
- state_tokens[2] = parse_face_type (inst);
- switch (*(*inst)++) {
- case LIGHT_PROD_AMBIENT:
- state_tokens[3] = STATE_AMBIENT;
- break;
- case LIGHT_PROD_DIFFUSE:
- state_tokens[3] = STATE_DIFFUSE;
- break;
- case LIGHT_PROD_SPECULAR:
- state_tokens[3] = STATE_SPECULAR;
- break;
- }
- break;
-
-
- case STATE_FOG:
- switch (*(*inst)++) {
- case FOG_COLOR:
- state_tokens[0] = STATE_FOG_COLOR;
- break;
- case FOG_PARAMS:
- state_tokens[0] = STATE_FOG_PARAMS;
- break;
- }
- break;
-
- case STATE_TEX_ENV:
- state_tokens[1] = parse_integer (inst, Program);
- switch (*(*inst)++) {
- case TEX_ENV_COLOR:
- state_tokens[0] = STATE_TEXENV_COLOR;
- break;
- }
- break;
-
- case STATE_TEX_GEN:
- {
- GLuint type, coord;
-
- state_tokens[0] = STATE_TEXGEN;
- /*state_tokens[1] = parse_integer (inst, Program);*/ /* Texture Unit */
-
- if (parse_texcoord_num (ctx, inst, Program, &coord))
- return 1;
- state_tokens[1] = coord;
-
- /* EYE or OBJECT */
- type = *(*inst++);
-
- /* 0 - s, 1 - t, 2 - r, 3 - q */
- coord = *(*inst++);
-
- if (type == TEX_GEN_EYE) {
- switch (coord) {
- case COMPONENT_X:
- state_tokens[2] = STATE_TEXGEN_EYE_S;
- break;
- case COMPONENT_Y:
- state_tokens[2] = STATE_TEXGEN_EYE_T;
- break;
- case COMPONENT_Z:
- state_tokens[2] = STATE_TEXGEN_EYE_R;
- break;
- case COMPONENT_W:
- state_tokens[2] = STATE_TEXGEN_EYE_Q;
- break;
- }
- }
- else {
- switch (coord) {
- case COMPONENT_X:
- state_tokens[2] = STATE_TEXGEN_OBJECT_S;
- break;
- case COMPONENT_Y:
- state_tokens[2] = STATE_TEXGEN_OBJECT_T;
- break;
- case COMPONENT_Z:
- state_tokens[2] = STATE_TEXGEN_OBJECT_R;
- break;
- case COMPONENT_W:
- state_tokens[2] = STATE_TEXGEN_OBJECT_Q;
- break;
- }
- }
- }
- break;
-
- case STATE_DEPTH:
- switch (*(*inst)++) {
- case DEPTH_RANGE:
- state_tokens[0] = STATE_DEPTH_RANGE;
- break;
- }
- break;
-
- case STATE_CLIP_PLANE:
- state_tokens[0] = STATE_CLIPPLANE;
- state_tokens[1] = parse_integer (inst, Program);
- if (parse_clipplane_num (ctx, inst, Program, &state_tokens[1]))
- return 1;
- break;
-
- case STATE_POINT:
- switch (*(*inst++)) {
- case POINT_SIZE:
- state_tokens[0] = STATE_POINT_SIZE;
- break;
-
- case POINT_ATTENUATION:
- state_tokens[0] = STATE_POINT_ATTENUATION;
- break;
- }
- break;
-
- /* XXX: I think this is the correct format for a matrix row */
- case STATE_MATRIX_ROWS:
- state_tokens[0] = STATE_MATRIX;
- if (parse_matrix
- (ctx, inst, Program, &state_tokens[1], &state_tokens[2],
- &state_tokens[5]))
- return 1;
-
- state_tokens[3] = parse_integer (inst, Program); /* The first row to grab */
-
- if ((**inst) != 0) { /* Either the last row, 0 */
- state_tokens[4] = parse_integer (inst, Program);
- if (state_tokens[4] < state_tokens[3]) {
- _mesa_set_program_error (ctx, Program->Position,
- "Second matrix index less than the first");
- _mesa_error (ctx, GL_INVALID_OPERATION,
- "Second matrix index (%d) less than the first (%d)",
- state_tokens[4], state_tokens[3]);
- return 1;
- }
- }
- else {
- state_tokens[4] = state_tokens[3];
- (*inst)++;
- }
- break;
- }
-
- return 0;
-}
-
-/**
- * This parses a state string (rather, the binary version of it) into
- * a 6-token similar for the state fetching code in program.c
- *
- * One might ask, why fetch these parameters into just like you fetch
- * state when they are already stored in other places?
- *
- * Because of array offsets -> We can stick env/local parameters in the
- * middle of a parameter array and then index someplace into the array
- * when we execute.
- *
- * One optimization might be to only do this for the cases where the
- * env/local parameters end up inside of an array, and leave the
- * single parameters (or arrays of pure env/local pareameters) in their
- * respective register files.
- *
- * For ENV parameters, the format is:
- * state_tokens[0] = STATE_FRAGMENT_PROGRAM / STATE_VERTEX_PROGRAM
- * state_tokens[1] = STATE_ENV
- * state_tokens[2] = the parameter index
- *
- * for LOCAL parameters, the format is:
- * state_tokens[0] = STATE_FRAGMENT_PROGRAM / STATE_VERTEX_PROGRAM
- * state_tokens[1] = STATE_LOCAL
- * state_tokens[2] = the parameter index
- *
- * \param inst - the start in the binary arry to start working from
- * \param state_tokens - the storage for the 6-token state description
- * \return - 0 on sucess, 1 on failure
- */
-static GLuint
-parse_program_single_item (GLcontext * ctx, GLubyte ** inst,
- struct arb_program *Program, GLint * state_tokens)
-{
- if (Program->Base.Target == GL_FRAGMENT_PROGRAM_ARB)
- state_tokens[0] = STATE_FRAGMENT_PROGRAM;
- else
- state_tokens[0] = STATE_VERTEX_PROGRAM;
-
-
- switch (*(*inst)++) {
- case PROGRAM_PARAM_ENV:
- state_tokens[1] = STATE_ENV;
- state_tokens[2] = parse_integer (inst, Program);
-
- /* Check state_tokens[2] against the number of ENV parameters available */
- if (((Program->Base.Target == GL_FRAGMENT_PROGRAM_ARB) &&
- (state_tokens[2] >= (GLint) ctx->Const.MaxFragmentProgramEnvParams))
- ||
- ((Program->Base.Target == GL_VERTEX_PROGRAM_ARB) &&
- (state_tokens[2] >= (GLint) ctx->Const.MaxVertexProgramEnvParams))) {
- _mesa_set_program_error (ctx, Program->Position,
- "Invalid Program Env Parameter");
- _mesa_error (ctx, GL_INVALID_OPERATION,
- "Invalid Program Env Parameter: %d",
- state_tokens[2]);
- return 1;
- }
-
- break;
-
- case PROGRAM_PARAM_LOCAL:
- state_tokens[1] = STATE_LOCAL;
- state_tokens[2] = parse_integer (inst, Program);
-
- /* Check state_tokens[2] against the number of LOCAL parameters available */
- if (((Program->Base.Target == GL_FRAGMENT_PROGRAM_ARB) &&
- (state_tokens[2] >= (GLint) ctx->Const.MaxFragmentProgramLocalParams))
- ||
- ((Program->Base.Target == GL_VERTEX_PROGRAM_ARB) &&
- (state_tokens[2] >= (GLint) ctx->Const.MaxVertexProgramLocalParams))) {
- _mesa_set_program_error (ctx, Program->Position,
- "Invalid Program Local Parameter");
- _mesa_error (ctx, GL_INVALID_OPERATION,
- "Invalid Program Local Parameter: %d",
- state_tokens[2]);
- return 1;
- }
- break;
- }
-
- return 0;
-}
-
-/**
- * For ARB_vertex_program, programs are not allowed to use both an explicit
- * vertex attribute and a generic vertex attribute corresponding to the same
- * state. See section 2.14.3.1 of the GL_ARB_vertex_program spec.
- *
- * This will walk our var_cache and make sure that nobody does anything fishy.
- *
- * \return 0 on sucess, 1 on error
- */
-static GLuint
-generic_attrib_check(struct var_cache *vc_head)
-{
- int a;
- struct var_cache *curr;
- GLboolean explicitAttrib[MAX_VERTEX_PROGRAM_ATTRIBS],
- genericAttrib[MAX_VERTEX_PROGRAM_ATTRIBS];
-
- for (a=0; a<MAX_VERTEX_PROGRAM_ATTRIBS; a++) {
- explicitAttrib[a] = GL_FALSE;
- genericAttrib[a] = GL_FALSE;
- }
-
- curr = vc_head;
- while (curr) {
- if (curr->type == vt_attrib) {
- if (curr->attrib_is_generic)
- genericAttrib[ curr->attrib_binding_idx ] = GL_TRUE;
- else
- explicitAttrib[ curr->attrib_binding_idx ] = GL_TRUE;
- }
-
- curr = curr->next;
- }
-
- for (a=0; a<MAX_VERTEX_PROGRAM_ATTRIBS; a++) {
- if ((explicitAttrib[a]) && (genericAttrib[a]))
- return 1;
- }
-
- return 0;
-}
-
-/**
- * This will handle the binding side of an ATTRIB var declaration
- *
- * \param binding - the fragment input register state, defined in nvfragprog.h
- * \param binding_idx - the index in the attrib register file that binding is associated with
- * \return returns 0 on sucess, 1 on error
- *
- * See nvfragparse.c for attrib register file layout
- */
-static GLuint
-parse_attrib_binding (GLcontext * ctx, GLubyte ** inst,
- struct arb_program *Program, GLuint * binding,
- GLuint * binding_idx, GLuint *is_generic)
-{
- GLuint texcoord;
- GLint coord;
- GLint err = 0;
-
- *is_generic = 0;
- if (Program->Base.Target == GL_FRAGMENT_PROGRAM_ARB) {
- switch (*(*inst)++) {
- case FRAGMENT_ATTRIB_COLOR:
- err = parse_color_type (ctx, inst, Program, &coord);
- *binding = FRAG_ATTRIB_COL0 + coord;
- *binding_idx = 1 + coord;
- break;
-
- case FRAGMENT_ATTRIB_TEXCOORD:
- err = parse_texcoord_num (ctx, inst, Program, &texcoord);
- *binding = FRAG_ATTRIB_TEX0 + texcoord;
- *binding_idx = 4 + texcoord;
- break;
-
- case FRAGMENT_ATTRIB_FOGCOORD:
- *binding = FRAG_ATTRIB_FOGC;
- *binding_idx = 3;
- break;
-
- case FRAGMENT_ATTRIB_POSITION:
- *binding = FRAG_ATTRIB_WPOS;
- *binding_idx = 0;
- break;
-
- default:
- err = 1;
- break;
- }
- }
- else {
- switch (*(*inst)++) {
- case VERTEX_ATTRIB_POSITION:
- *binding = VERT_ATTRIB_POS;
- *binding_idx = 0;
- break;
-
- case VERTEX_ATTRIB_WEIGHT:
- {
- GLint weight;
-
- err = parse_weight_num (ctx, inst, Program, &weight);
- *binding = VERT_ATTRIB_WEIGHT;
- *binding_idx = 1;
- }
- _mesa_set_program_error (ctx, Program->Position,
- "ARB_vertex_blend not supported\n");
- _mesa_error (ctx, GL_INVALID_OPERATION,
- "ARB_vertex_blend not supported\n");
- return 1;
- break;
-
- case VERTEX_ATTRIB_NORMAL:
- *binding = VERT_ATTRIB_NORMAL;
- *binding_idx = 2;
- break;
-
- case VERTEX_ATTRIB_COLOR:
- {
- GLint color;
-
- err = parse_color_type (ctx, inst, Program, &color);
- if (color) {
- *binding = VERT_ATTRIB_COLOR1;
- *binding_idx = 4;
- }
- else {
- *binding = VERT_ATTRIB_COLOR0;
- *binding_idx = 3;
- }
- }
- break;
-
- case VERTEX_ATTRIB_FOGCOORD:
- *binding = VERT_ATTRIB_FOG;
- *binding_idx = 5;
- break;
-
- case VERTEX_ATTRIB_TEXCOORD:
- {
- GLuint unit;
-
- err = parse_texcoord_num (ctx, inst, Program, &unit);
- *binding = VERT_ATTRIB_TEX0 + unit;
- *binding_idx = 8 + unit;
- }
- break;
-
- /* It looks like we don't support this at all, atm */
- case VERTEX_ATTRIB_MATRIXINDEX:
- parse_integer (inst, Program);
- _mesa_set_program_error (ctx, Program->Position,
- "ARB_palette_matrix not supported");
- _mesa_error (ctx, GL_INVALID_OPERATION,
- "ARB_palette_matrix not supported");
- return 1;
- break;
-
- case VERTEX_ATTRIB_GENERIC:
- {
- GLuint attrib;
-
- if (!parse_generic_attrib_num(ctx, inst, Program, &attrib)) {
- *is_generic = 1;
- switch (attrib) {
- case 0:
- *binding = VERT_ATTRIB_POS;
- break;
- case 1:
- *binding = VERT_ATTRIB_WEIGHT;
- break;
- case 2:
- *binding = VERT_ATTRIB_NORMAL;
- break;
- case 3:
- *binding = VERT_ATTRIB_COLOR0;
- break;
- case 4:
- *binding = VERT_ATTRIB_COLOR1;
- break;
- case 5:
- *binding = VERT_ATTRIB_FOG;
- break;
- case 6:
- break;
- case 7:
- break;
- default:
- *binding = VERT_ATTRIB_TEX0 + (attrib-8);
- break;
- }
- *binding_idx = attrib;
- }
- }
- break;
-
- default:
- err = 1;
- break;
- }
- }
-
- /* Can this even happen? */
- if (err) {
- _mesa_set_program_error (ctx, Program->Position,
- "Bad attribute binding");
- _mesa_error (ctx, GL_INVALID_OPERATION, "Bad attribute binding");
- }
-
- Program->InputsRead |= (1 << *binding_idx);
-
- return err;
-}
-
-/**
- * This translates between a binary token for an output variable type
- * and the mesa token for the same thing.
- *
- *
- * XXX: What is the 'name' for vertex program state? -> do we need it?
- * I don't think we do;
- *
- * See nvfragprog.h for definitions
- *
- * \param inst - The parsed tokens
- * \param binding - The name of the state we are binding too
- * \param binding_idx - The index into the result register file that this is bound too
- *
- * See nvfragparse.c for the register file layout for fragment programs
- * See nvvertparse.c for the register file layout for vertex programs
- */
-static GLuint
-parse_result_binding (GLcontext * ctx, GLubyte ** inst, GLuint * binding,
- GLuint * binding_idx, struct arb_program *Program)
-{
- GLuint b;
-
- switch (*(*inst)++) {
- case FRAGMENT_RESULT_COLOR:
- /* for frag programs, this is FRAGMENT_RESULT_COLOR */
- if (Program->Base.Target == GL_FRAGMENT_PROGRAM_ARB) {
- *binding = FRAG_OUTPUT_COLR;
- *binding_idx = 0;
- }
- /* for vtx programs, this is VERTEX_RESULT_POSITION */
- else {
- *binding_idx = 0;
- }
- break;
-
- case FRAGMENT_RESULT_DEPTH:
- /* for frag programs, this is FRAGMENT_RESULT_DEPTH */
- if (Program->Base.Target == GL_FRAGMENT_PROGRAM_ARB) {
- *binding = FRAG_OUTPUT_DEPR;
- *binding_idx = 2;
- }
- /* for vtx programs, this is VERTEX_RESULT_COLOR */
- else {
- GLint color_type;
- GLuint face_type = parse_face_type(inst);
- GLint color_type_ret = parse_color_type(ctx, inst, Program, &color_type);
-
- /* back face */
- if (face_type) {
- if (color_type_ret) return 1;
-
- /* secondary color */
- if (color_type) {
- *binding_idx = 4;
- }
- /* primary color */
- else {
- *binding_idx = 3;
- }
- }
- /* front face */
- else {
- /* secondary color */
- if (color_type) {
- *binding_idx = 2;
- }
- /* primary color */
- else {
- *binding_idx = 1;
- }
- }
- }
- break;
-
- case VERTEX_RESULT_FOGCOORD:
- *binding_idx = 5;
- break;
-
- case VERTEX_RESULT_POINTSIZE:
- *binding_idx = 6;
- break;
-
- case VERTEX_RESULT_TEXCOORD:
- if (parse_texcoord_num (ctx, inst, Program, &b))
- return 1;
- *binding_idx = 7 + b;
- break;
- }
-
- Program->OutputsWritten |= (1 << *binding_idx);
-
- return 0;
-}
-
-/**
- * This handles the declaration of ATTRIB variables
- *
- * XXX: Still needs
- * parse_vert_attrib_binding(), or something like that
- *
- * \return 0 on sucess, 1 on error
- */
-static GLint
-parse_attrib (GLcontext * ctx, GLubyte ** inst, struct var_cache **vc_head,
- struct arb_program *Program)
-{
- GLuint found;
- char *error_msg;
- struct var_cache *attrib_var;
-
- attrib_var = parse_string (inst, vc_head, Program, &found);
- Program->Position = parse_position (inst);
- if (found) {
- error_msg = (char *)
- _mesa_malloc (_mesa_strlen ((char *) attrib_var->name) + 40);
- _mesa_sprintf (error_msg, "Duplicate Varible Declaration: %s",
- attrib_var->name);
-
- _mesa_set_program_error (ctx, Program->Position, error_msg);
- _mesa_error (ctx, GL_INVALID_OPERATION, error_msg);
-
- _mesa_free (error_msg);
- return 1;
- }
-
- attrib_var->type = vt_attrib;
-
- /* I think this is ok now - karl */
- /* XXX: */
- /*if (Program->type == GL_FRAGMENT_PROGRAM_ARB) */
- {
- if (parse_attrib_binding
- (ctx, inst, Program, &attrib_var->attrib_binding,
- &attrib_var->attrib_binding_idx, &attrib_var->attrib_is_generic))
- return 1;
- if (generic_attrib_check(*vc_head)) {
- _mesa_set_program_error (ctx, Program->Position,
- "Cannot use both a generic vertex attribute and a specific attribute of the same type");
- _mesa_error (ctx, GL_INVALID_OPERATION,
- "Cannot use both a generic vertex attribute and a specific attribute of the same type");
- return 1;
- }
-
- }
-
- Program->Base.NumAttributes++;
- return 0;
-}
-
-/**
- * \param use -- TRUE if we're called when declaring implicit parameters,
- * FALSE if we're declaraing variables. This has to do with
- * if we get a signed or unsigned float for scalar constants
- */
-static GLuint
-parse_param_elements (GLcontext * ctx, GLubyte ** inst,
- struct var_cache *param_var,
- struct arb_program *Program, GLboolean use)
-{
- GLint idx;
- GLuint err;
- GLint state_tokens[6];
- GLfloat const_values[4];
-
- err = 0;
-
- switch (*(*inst)++) {
- case PARAM_STATE_ELEMENT:
-
- if (parse_state_single_item (ctx, inst, Program, state_tokens))
- return 1;
-
- /* If we adding STATE_MATRIX that has multiple rows, we need to
- * unroll it and call _mesa_add_state_reference() for each row
- */
- if ((state_tokens[0] == STATE_MATRIX)
- && (state_tokens[3] != state_tokens[4])) {
- GLint row;
- GLint first_row = state_tokens[3];
- GLint last_row = state_tokens[4];
-
- for (row = first_row; row <= last_row; row++) {
- state_tokens[3] = state_tokens[4] = row;
-
- idx =
- _mesa_add_state_reference (Program->Parameters,
- state_tokens);
- if (param_var->param_binding_begin == ~0U)
- param_var->param_binding_begin = idx;
- param_var->param_binding_length++;
- Program->Base.NumParameters++;
- }
- }
- else {
- idx =
- _mesa_add_state_reference (Program->Parameters, state_tokens);
- if (param_var->param_binding_begin == ~0U)
- param_var->param_binding_begin = idx;
- param_var->param_binding_length++;
- Program->Base.NumParameters++;
- }
- break;
-
- case PARAM_PROGRAM_ELEMENT:
-
- if (parse_program_single_item (ctx, inst, Program, state_tokens))
- return 1;
- idx = _mesa_add_state_reference (Program->Parameters, state_tokens);
- if (param_var->param_binding_begin == ~0U)
- param_var->param_binding_begin = idx;
- param_var->param_binding_length++;
- Program->Base.NumParameters++;
-
- /* Check if there is more: 0 -> we're done, else its an integer */
- if (**inst) {
- GLuint out_of_range, new_idx;
- GLuint start_idx = state_tokens[2] + 1;
- GLuint end_idx = parse_integer (inst, Program);
-
- out_of_range = 0;
- if (Program->Base.Target == GL_FRAGMENT_PROGRAM_ARB) {
- if (((state_tokens[1] == STATE_ENV)
- && (end_idx >= ctx->Const.MaxFragmentProgramEnvParams))
- || ((state_tokens[1] == STATE_LOCAL)
- && (end_idx >=
- ctx->Const.MaxFragmentProgramLocalParams)))
- out_of_range = 1;
- }
- else {
- if (((state_tokens[1] == STATE_ENV)
- && (end_idx >= ctx->Const.MaxVertexProgramEnvParams))
- || ((state_tokens[1] == STATE_LOCAL)
- && (end_idx >=
- ctx->Const.MaxVertexProgramLocalParams)))
- out_of_range = 1;
- }
- if (out_of_range) {
- _mesa_set_program_error (ctx, Program->Position,
- "Invalid Program Parameter");
- _mesa_error (ctx, GL_INVALID_OPERATION,
- "Invalid Program Parameter: %d", end_idx);
- return 1;
- }
-
- for (new_idx = start_idx; new_idx <= end_idx; new_idx++) {
- state_tokens[2] = new_idx;
- idx =
- _mesa_add_state_reference (Program->Parameters,
- state_tokens);
- param_var->param_binding_length++;
- Program->Base.NumParameters++;
- }
- }
- else
- {
- (*inst)++;
- }
- break;
-
- case PARAM_CONSTANT:
- parse_constant (inst, const_values, Program, use);
- idx =
- _mesa_add_named_constant (Program->Parameters,
- (char *) param_var->name, const_values);
- if (param_var->param_binding_begin == ~0U)
- param_var->param_binding_begin = idx;
- param_var->param_binding_length++;
- Program->Base.NumParameters++;
- break;
-
- default:
- _mesa_set_program_error (ctx, Program->Position,
- "Unexpected token in parse_param_elements()");
- _mesa_error (ctx, GL_INVALID_OPERATION,
- "Unexpected token in parse_param_elements()");
- return 1;
- }
-
- /* Make sure we haven't blown past our parameter limits */
- if (((Program->Base.Target == GL_VERTEX_PROGRAM_ARB) &&
- (Program->Base.NumParameters >=
- ctx->Const.MaxVertexProgramLocalParams))
- || ((Program->Base.Target == GL_FRAGMENT_PROGRAM_ARB)
- && (Program->Base.NumParameters >=
- ctx->Const.MaxFragmentProgramLocalParams))) {
- _mesa_set_program_error (ctx, Program->Position,
- "Too many parameter variables");
- _mesa_error (ctx, GL_INVALID_OPERATION, "Too many parameter variables");
- return 1;
- }
-
- return err;
-}
-
-/**
- * This picks out PARAM program parameter bindings.
- *
- * XXX: This needs to be stressed & tested
- *
- * \return 0 on sucess, 1 on error
- */
-static GLuint
-parse_param (GLcontext * ctx, GLubyte ** inst, struct var_cache **vc_head,
- struct arb_program *Program)
-{
- GLuint found, err;
- GLint specified_length;
- char *error_msg;
- struct var_cache *param_var;
-
- err = 0;
- param_var = parse_string (inst, vc_head, Program, &found);
- Program->Position = parse_position (inst);
-
- if (found) {
- error_msg = (char *) _mesa_malloc (_mesa_strlen ((char *) param_var->name) + 40);
- _mesa_sprintf (error_msg, "Duplicate Varible Declaration: %s",
- param_var->name);
-
- _mesa_set_program_error (ctx, Program->Position, error_msg);
- _mesa_error (ctx, GL_INVALID_OPERATION, error_msg);
-
- _mesa_free (error_msg);
- return 1;
- }
-
- specified_length = parse_integer (inst, Program);
-
- if (specified_length < 0) {
- _mesa_set_program_error (ctx, Program->Position,
- "Negative parameter array length");
- _mesa_error (ctx, GL_INVALID_OPERATION,
- "Negative parameter array length: %d", specified_length);
- return 1;
- }
-
- param_var->type = vt_param;
- param_var->param_binding_length = 0;
-
- /* Right now, everything is shoved into the main state register file.
- *
- * In the future, it would be nice to leave things ENV/LOCAL params
- * in their respective register files, if possible
- */
- param_var->param_binding_type = PROGRAM_STATE_VAR;
-
- /* Remember to:
- * * - add each guy to the parameter list
- * * - increment the param_var->param_binding_len
- * * - store the param_var->param_binding_begin for the first one
- * * - compare the actual len to the specified len at the end
- */
- while (**inst != PARAM_NULL) {
- if (parse_param_elements (ctx, inst, param_var, Program, GL_FALSE))
- return 1;
- }
-
- /* Test array length here! */
- if (specified_length) {
- if (specified_length != param_var->param_binding_length) {
- _mesa_set_program_error (ctx, Program->Position,
- "Declared parameter array lenght does not match parameter list");
- _mesa_error (ctx, GL_INVALID_OPERATION,
- "Declared parameter array lenght does not match parameter list");
- }
- }
-
- (*inst)++;
-
- return 0;
-}
-
-/**
- *
- */
-static GLuint
-parse_param_use (GLcontext * ctx, GLubyte ** inst, struct var_cache **vc_head,
- struct arb_program *Program, struct var_cache **new_var)
-{
- struct var_cache *param_var;
-
- /* First, insert a dummy entry into the var_cache */
- var_cache_create (¶m_var);
- param_var->name = (GLubyte *) _mesa_strdup (" ");
- param_var->type = vt_param;
-
- param_var->param_binding_length = 0;
- /* Don't fill in binding_begin; We use the default value of -1
- * to tell if its already initialized, elsewhere.
- *
- * param_var->param_binding_begin = 0;
- */
- param_var->param_binding_type = PROGRAM_STATE_VAR;
-
- var_cache_append (vc_head, param_var);
-
- /* Then fill it with juicy parameter goodness */
- if (parse_param_elements (ctx, inst, param_var, Program, GL_TRUE))
- return 1;
-
- *new_var = param_var;
-
- return 0;
-}
-
-
-/**
- * This handles the declaration of TEMP variables
- *
- * \return 0 on sucess, 1 on error
- */
-static GLuint
-parse_temp (GLcontext * ctx, GLubyte ** inst, struct var_cache **vc_head,
- struct arb_program *Program)
-{
- GLuint found;
- struct var_cache *temp_var;
- char *error_msg;
-
- while (**inst != 0) {
- temp_var = parse_string (inst, vc_head, Program, &found);
- Program->Position = parse_position (inst);
- if (found) {
- error_msg = (char *)
- _mesa_malloc (_mesa_strlen ((char *) temp_var->name) + 40);
- _mesa_sprintf (error_msg, "Duplicate Varible Declaration: %s",
- temp_var->name);
-
- _mesa_set_program_error (ctx, Program->Position, error_msg);
- _mesa_error (ctx, GL_INVALID_OPERATION, error_msg);
-
- _mesa_free (error_msg);
- return 1;
- }
-
- temp_var->type = vt_temp;
-
- if (((Program->Base.Target == GL_FRAGMENT_PROGRAM_ARB) &&
- (Program->Base.NumTemporaries >=
- ctx->Const.MaxFragmentProgramTemps))
- || ((Program->Base.Target == GL_VERTEX_PROGRAM_ARB)
- && (Program->Base.NumTemporaries >=
- ctx->Const.MaxVertexProgramTemps))) {
- _mesa_set_program_error (ctx, Program->Position,
- "Too many TEMP variables declared");
- _mesa_error (ctx, GL_INVALID_OPERATION,
- "Too many TEMP variables declared");
- return 1;
- }
-
- temp_var->temp_binding = Program->Base.NumTemporaries;
- Program->Base.NumTemporaries++;
- }
- (*inst)++;
-
- return 0;
-}
-
-/**
- * This handles variables of the OUTPUT variety
- *
- * \return 0 on sucess, 1 on error
- */
-static GLuint
-parse_output (GLcontext * ctx, GLubyte ** inst, struct var_cache **vc_head,
- struct arb_program *Program)
-{
- GLuint found;
- struct var_cache *output_var;
-
- output_var = parse_string (inst, vc_head, Program, &found);
- Program->Position = parse_position (inst);
- if (found) {
- char *error_msg;
- error_msg = (char *)
- _mesa_malloc (_mesa_strlen ((char *) output_var->name) + 40);
- _mesa_sprintf (error_msg, "Duplicate Varible Declaration: %s",
- output_var->name);
-
- _mesa_set_program_error (ctx, Program->Position, error_msg);
- _mesa_error (ctx, GL_INVALID_OPERATION, error_msg);
-
- _mesa_free (error_msg);
- return 1;
- }
-
- output_var->type = vt_output;
- return parse_result_binding (ctx, inst, &output_var->output_binding,
- &output_var->output_binding_idx, Program);
-}
-
-/**
- * This handles variables of the ALIAS kind
- *
- * \return 0 on sucess, 1 on error
- */
-static GLuint
-parse_alias (GLcontext * ctx, GLubyte ** inst, struct var_cache **vc_head,
- struct arb_program *Program)
-{
- GLuint found;
- struct var_cache *temp_var;
- char *error_msg;
-
-
- temp_var = parse_string (inst, vc_head, Program, &found);
- Program->Position = parse_position (inst);
-
- if (found) {
- error_msg = (char *)
- _mesa_malloc (_mesa_strlen ((char *) temp_var->name) + 40);
- _mesa_sprintf (error_msg, "Duplicate Varible Declaration: %s",
- temp_var->name);
-
- _mesa_set_program_error (ctx, Program->Position, error_msg);
- _mesa_error (ctx, GL_INVALID_OPERATION, error_msg);
-
- _mesa_free (error_msg);
- return 1;
- }
-
- temp_var->type = vt_alias;
- temp_var->alias_binding = parse_string (inst, vc_head, Program, &found);
- Program->Position = parse_position (inst);
-
- if (!found)
- {
- error_msg = (char *)
- _mesa_malloc (_mesa_strlen ((char *) temp_var->name) + 40);
- _mesa_sprintf (error_msg, "Alias value %s is not defined",
- temp_var->alias_binding->name);
-
- _mesa_set_program_error (ctx, Program->Position, error_msg);
- _mesa_error (ctx, GL_INVALID_OPERATION, error_msg);
-
- _mesa_free (error_msg);
- return 1;
- }
-
- return 0;
-}
-
-/**
- * This handles variables of the ADDRESS kind
- *
- * \return 0 on sucess, 1 on error
- */
-static GLuint
-parse_address (GLcontext * ctx, GLubyte ** inst, struct var_cache **vc_head,
- struct arb_program *Program)
-{
- GLuint found;
- struct var_cache *temp_var;
- char *error_msg;
-
- while (**inst != 0) {
- temp_var = parse_string (inst, vc_head, Program, &found);
- Program->Position = parse_position (inst);
- if (found) {
- error_msg = (char *)
- _mesa_malloc (_mesa_strlen ((char *) temp_var->name) + 40);
- _mesa_sprintf (error_msg, "Duplicate Varible Declaration: %s",
- temp_var->name);
-
- _mesa_set_program_error (ctx, Program->Position, error_msg);
- _mesa_error (ctx, GL_INVALID_OPERATION, error_msg);
-
- _mesa_free (error_msg);
- return 1;
- }
-
- temp_var->type = vt_address;
-
- if (Program->Base.NumAddressRegs >=
- ctx->Const.MaxVertexProgramAddressRegs) {
- _mesa_set_program_error (ctx, Program->Position,
- "Too many ADDRESS variables declared");
- _mesa_error (ctx, GL_INVALID_OPERATION,
- "Too many ADDRESS variables declared");
- return 1;
- }
-
- temp_var->address_binding = Program->Base.NumAddressRegs;
- Program->Base.NumAddressRegs++;
- }
- (*inst)++;
-
- return 0;
-}
-
-/**
- * Parse a program declaration
- *
- * \return 0 on sucess, 1 on error
- */
-static GLint
-parse_declaration (GLcontext * ctx, GLubyte ** inst, struct var_cache **vc_head,
- struct arb_program *Program)
-{
- GLint err = 0;
-
- switch (*(*inst)++) {
- case ADDRESS:
- err = parse_address (ctx, inst, vc_head, Program);
- break;
-
- case ALIAS:
- err = parse_alias (ctx, inst, vc_head, Program);
- break;
-
- case ATTRIB:
- err = parse_attrib (ctx, inst, vc_head, Program);
- break;
-
- case OUTPUT:
- err = parse_output (ctx, inst, vc_head, Program);
- break;
-
- case PARAM:
- err = parse_param (ctx, inst, vc_head, Program);
- break;
-
- case TEMP:
- err = parse_temp (ctx, inst, vc_head, Program);
- break;
- }
-
- return err;
-}
-
-/**
- * Handle the parsing out of a masked destination register
- *
- * If we are a vertex program, make sure we don't write to
- * result.position of we have specified that the program is
- * position invariant
- *
- * \param File - The register file we write to
- * \param Index - The register index we write to
- * \param WriteMask - The mask controlling which components we write (1->write)
- *
- * \return 0 on sucess, 1 on error
- */
-static GLuint
-parse_masked_dst_reg (GLcontext * ctx, GLubyte ** inst,
- struct var_cache **vc_head, struct arb_program *Program,
- GLint * File, GLint * Index, GLboolean * WriteMask)
-{
- GLuint result;
- GLubyte mask;
- struct var_cache *dst;
-
- /* We either have a result register specified, or a
- * variable that may or may not be writable
- */
- switch (*(*inst)++) {
- case REGISTER_RESULT:
- if (parse_result_binding
- (ctx, inst, &result, (GLuint *) Index, Program))
- return 1;
- *File = PROGRAM_OUTPUT;
- break;
-
- case REGISTER_ESTABLISHED_NAME:
- dst = parse_string (inst, vc_head, Program, &result);
- Program->Position = parse_position (inst);
-
- /* If the name has never been added to our symbol table, we're hosed */
- if (!result) {
- _mesa_set_program_error (ctx, Program->Position,
- "0: Undefined variable");
- _mesa_error (ctx, GL_INVALID_OPERATION, "0: Undefined variable: %s",
- dst->name);
- return 1;
- }
-
- switch (dst->type) {
- case vt_output:
- *File = PROGRAM_OUTPUT;
- *Index = dst->output_binding_idx;
- break;
-
- case vt_temp:
- *File = PROGRAM_TEMPORARY;
- *Index = dst->temp_binding;
- break;
-
- /* If the var type is not vt_output or vt_temp, no go */
- default:
- _mesa_set_program_error (ctx, Program->Position,
- "Destination register is read only");
- _mesa_error (ctx, GL_INVALID_OPERATION,
- "Destination register is read only: %s",
- dst->name);
- return 1;
- }
- break;
-
- default:
- _mesa_set_program_error (ctx, Program->Position,
- "Unexpected opcode in parse_masked_dst_reg()");
- _mesa_error (ctx, GL_INVALID_OPERATION,
- "Unexpected opcode in parse_masked_dst_reg()");
- return 1;
- }
-
-
- /* Position invariance test */
- if ((Program->HintPositionInvariant) && (*File == PROGRAM_OUTPUT) &&
- (*Index == 0)) {
- _mesa_set_program_error (ctx, Program->Position,
- "Vertex program specified position invariance and wrote vertex position");
- _mesa_error (ctx, GL_INVALID_OPERATION,
- "Vertex program specified position invariance and wrote vertex position");
- }
-
- /* And then the mask.
- * w,a -> bit 0
- * z,b -> bit 1
- * y,g -> bit 2
- * x,r -> bit 3
- */
- mask = *(*inst)++;
-
- WriteMask[0] = (GLboolean) (mask & (1 << 3)) >> 3;
- WriteMask[1] = (GLboolean) (mask & (1 << 2)) >> 2;
- WriteMask[2] = (GLboolean) (mask & (1 << 1)) >> 1;
- WriteMask[3] = (GLboolean) (mask & (1));
-
- return 0;
-}
-
-
-/**
- * Handle the parsing of a address register
- *
- * \param Index - The register index we write to
- *
- * \return 0 on sucess, 1 on error
- */
-static GLuint
-parse_address_reg (GLcontext * ctx, GLubyte ** inst,
- struct var_cache **vc_head,
- struct arb_program *Program, GLint * Index)
-{
- struct var_cache *dst;
- GLuint result;
-
- dst = parse_string (inst, vc_head, Program, &result);
- Program->Position = parse_position (inst);
-
- /* If the name has never been added to our symbol table, we're hosed */
- if (!result) {
- _mesa_set_program_error (ctx, Program->Position, "Undefined variable");
- _mesa_error (ctx, GL_INVALID_OPERATION, "Undefined variable: %s",
- dst->name);
- return 1;
- }
-
- if (dst->type != vt_address) {
- _mesa_set_program_error (ctx, Program->Position,
- "Variable is not of type ADDRESS");
- _mesa_error (ctx, GL_INVALID_OPERATION,
- "Variable: %s is not of type ADDRESS", dst->name);
- return 1;
- }
-
- return 0;
-}
-
-/**
- * Handle the parsing out of a masked address register
- *
- * \param Index - The register index we write to
- * \param WriteMask - The mask controlling which components we write (1->write)
- *
- * \return 0 on sucess, 1 on error
- */
-static GLuint
-parse_masked_address_reg (GLcontext * ctx, GLubyte ** inst,
- struct var_cache **vc_head,
- struct arb_program *Program, GLint * Index,
- GLboolean * WriteMask)
-{
- if (parse_address_reg (ctx, inst, vc_head, Program, Index))
- return 1;
-
- /* This should be 0x8 */
- (*inst)++;
-
- /* Writemask of .x is implied */
- WriteMask[0] = 1;
- WriteMask[1] = WriteMask[2] = WriteMask[3] = 0;
-
- return 0;
-}
-
-
-/**
- * Parse out a swizzle mask.
- *
- * The values in the input stream are:
- * COMPONENT_X -> x/r
- * COMPONENT_Y -> y/g
- * COMPONENT_Z-> z/b
- * COMPONENT_W-> w/a
- *
- * The values in the output mask are:
- * 0 -> x/r
- * 1 -> y/g
- * 2 -> z/b
- * 3 -> w/a
- *
- * The len parameter allows us to grab 4 components for a vector
- * swizzle, or just 1 component for a scalar src register selection
- */
-static GLuint
-parse_swizzle_mask (GLubyte ** inst, GLubyte * mask, GLint len)
-{
- GLint a;
-
- for (a = 0; a < 4; a++)
- mask[a] = a;
-
- for (a = 0; a < len; a++) {
- switch (*(*inst)++) {
- case COMPONENT_X:
- mask[a] = 0;
- break;
-
- case COMPONENT_Y:
- mask[a] = 1;
- break;
-
- case COMPONENT_Z:
- mask[a] = 2;
- break;
-
- case COMPONENT_W:
- mask[a] = 3;
- break;
- }
- }
-
- return 0;
-}
-
-/**
- */
-static GLuint
-parse_extended_swizzle_mask (GLubyte ** inst, GLubyte * mask, GLboolean * Negate)
-{
- GLint a;
- GLubyte swz;
-
- *Negate = GL_FALSE;
- for (a = 0; a < 4; a++) {
- if (parse_sign (inst))
- *Negate = GL_TRUE;
-
- swz = *(*inst)++;
-
- switch (swz) {
- case COMPONENT_0:
- mask[a] = SWIZZLE_ZERO;
- break;
- case COMPONENT_1:
- mask[a] = SWIZZLE_ONE;
- break;
- case COMPONENT_X:
- mask[a] = SWIZZLE_X;
- break;
- case COMPONENT_Y:
- mask[a] = SWIZZLE_Y;
- break;
- case COMPONENT_Z:
- mask[a] = SWIZZLE_Z;
- break;
- case COMPONENT_W:
- mask[a] = SWIZZLE_W;
- break;
-
- }
-#if 0
- if (swz == 0)
- mask[a] = SWIZZLE_ZERO;
- else if (swz == 1)
- mask[a] = SWIZZLE_ONE;
- else
- mask[a] = swz - 2;
-#endif
-
- }
-
- return 0;
-}
-
-
-static GLuint
-parse_src_reg (GLcontext * ctx, GLubyte ** inst, struct var_cache **vc_head,
- struct arb_program *Program, GLint * File, GLint * Index,
- GLboolean *IsRelOffset )
-{
- struct var_cache *src;
- GLuint binding_state, binding_idx, is_generic, found;
- GLint offset;
-
- /* And the binding for the src */
- switch (*(*inst)++) {
- case REGISTER_ATTRIB:
- if (parse_attrib_binding
- (ctx, inst, Program, &binding_state, &binding_idx, &is_generic))
- return 1;
- *File = PROGRAM_INPUT;
- *Index = binding_idx;
-
- /* We need to insert a dummy variable into the var_cache so we can
- * catch generic vertex attrib aliasing errors
- */
- var_cache_create(&src);
- src->type = vt_attrib;
- src->name = (GLubyte *)_mesa_strdup("Dummy Attrib Variable");
- src->attrib_binding = binding_state;
- src->attrib_binding_idx = binding_idx;
- src->attrib_is_generic = is_generic;
- var_cache_append(vc_head, src);
- if (generic_attrib_check(*vc_head)) {
- _mesa_set_program_error (ctx, Program->Position,
- "Cannot use both a generic vertex attribute and a specific attribute of the same type");
- _mesa_error (ctx, GL_INVALID_OPERATION,
- "Cannot use both a generic vertex attribute and a specific attribute of the same type");
- return 1;
- }
- break;
-
- case REGISTER_PARAM:
- switch (**inst) {
- case PARAM_ARRAY_ELEMENT:
- (*inst)++;
- src = parse_string (inst, vc_head, Program, &found);
- Program->Position = parse_position (inst);
-
- if (!found) {
- _mesa_set_program_error (ctx, Program->Position,
- "2: Undefined variable");
- _mesa_error (ctx, GL_INVALID_OPERATION,
- "2: Undefined variable: %s", src->name);
- return 1;
- }
-
- *File = src->param_binding_type;
-
- switch (*(*inst)++) {
- case ARRAY_INDEX_ABSOLUTE:
- offset = parse_integer (inst, Program);
-
- if ((offset < 0)
- || (offset >= src->param_binding_length)) {
- _mesa_set_program_error (ctx, Program->Position,
- "Index out of range");
- _mesa_error (ctx, GL_INVALID_OPERATION,
- "Index %d out of range for %s", offset,
- src->name);
- return 1;
- }
-
- *Index = src->param_binding_begin + offset;
- break;
-
- case ARRAY_INDEX_RELATIVE:
- {
- GLint addr_reg_idx, rel_off;
-
- /* First, grab the address regiseter */
- if (parse_address_reg (ctx, inst, vc_head, Program, &addr_reg_idx))
- return 1;
-
- /* And the .x */
- ((*inst)++);
- ((*inst)++);
- ((*inst)++);
- ((*inst)++);
-
- /* Then the relative offset */
- if (parse_relative_offset(ctx, inst, Program, &rel_off)) return 1;
-
- /* And store it properly */
- *Index = src->param_binding_begin + rel_off;
- *IsRelOffset = 1;
- }
- break;
- }
- break;
-
- default:
-
- if (parse_param_use (ctx, inst, vc_head, Program, &src))
- return 1;
-
- *File = src->param_binding_type;
- *Index = src->param_binding_begin;
- break;
- }
- break;
-
- case REGISTER_ESTABLISHED_NAME:
-
- src = parse_string (inst, vc_head, Program, &found);
- Program->Position = parse_position (inst);
-
- /* If the name has never been added to our symbol table, we're hosed */
- if (!found) {
- _mesa_set_program_error (ctx, Program->Position,
- "3: Undefined variable");
- _mesa_error (ctx, GL_INVALID_OPERATION, "3: Undefined variable: %s",
- src->name);
- return 1;
- }
-
- switch (src->type) {
- case vt_attrib:
- *File = PROGRAM_INPUT;
- *Index = src->attrib_binding_idx;
- break;
-
- /* XXX: We have to handle offsets someplace in here! -- or are those above? */
- case vt_param:
- *File = src->param_binding_type;
- *Index = src->param_binding_begin;
- break;
-
- case vt_temp:
- *File = PROGRAM_TEMPORARY;
- *Index = src->temp_binding;
- break;
-
- /* If the var type is vt_output no go */
- default:
- _mesa_set_program_error (ctx, Program->Position,
- "destination register is read only");
- _mesa_error (ctx, GL_INVALID_OPERATION,
- "destination register is read only: %s",
- src->name);
- return 1;
- }
- break;
-
- default:
- _mesa_set_program_error (ctx, Program->Position,
- "Unknown token in parse_src_reg");
- _mesa_error (ctx, GL_INVALID_OPERATION,
- "Unknown token in parse_src_reg");
- return 1;
- }
-
- return 0;
-}
-
-/**
- */
-static GLuint
-parse_vector_src_reg (GLcontext * ctx, GLubyte ** inst,
- struct var_cache **vc_head, struct arb_program *Program,
- GLint * File, GLint * Index, GLboolean * Negate,
- GLubyte * Swizzle, GLboolean *IsRelOffset)
-{
- /* Grab the sign */
- *Negate = parse_sign (inst);
-
- /* And the src reg */
- if (parse_src_reg (ctx, inst, vc_head, Program, File, Index, IsRelOffset))
- return 1;
-
- /* finally, the swizzle */
- parse_swizzle_mask (inst, Swizzle, 4);
-
- return 0;
-}
-
-/**
- */
-static GLuint
-parse_scalar_src_reg (GLcontext * ctx, GLubyte ** inst,
- struct var_cache **vc_head, struct arb_program *Program,
- GLint * File, GLint * Index, GLboolean * Negate,
- GLubyte * Swizzle, GLboolean *IsRelOffset)
-{
- /* Grab the sign */
- *Negate = parse_sign (inst);
-
- /* And the src reg */
- if (parse_src_reg (ctx, inst, vc_head, Program, File, Index, IsRelOffset))
- return 1;
-
- /* Now, get the component and shove it into all the swizzle slots */
- parse_swizzle_mask (inst, Swizzle, 1);
-
- return 0;
-}
-
-/**
- * This is a big mother that handles getting opcodes into the instruction
- * and handling the src & dst registers for fragment program instructions
- */
-static GLuint
-parse_fp_instruction (GLcontext * ctx, GLubyte ** inst,
- struct var_cache **vc_head, struct arb_program *Program,
- struct fp_instruction *fp)
-{
- GLint a, b;
- GLubyte swz[4]; /* FP's swizzle mask is a GLubyte, while VP's is GLuint */
- GLuint texcoord;
- GLubyte instClass, type, code;
- GLboolean rel;
-
- /* No condition codes in ARB_fp */
- fp->UpdateCondRegister = 0;
-
- /* Record the position in the program string for debugging */
- fp->StringPos = Program->Position;
-
- /* OP_ALU_INST or OP_TEX_INST */
- instClass = *(*inst)++;
-
- /* OP_ALU_{VECTOR, SCALAR, BINSC, BIN, TRI, SWZ},
- * OP_TEX_{SAMPLE, KIL}
- */
- type = *(*inst)++;
-
- /* The actual opcode name */
- code = *(*inst)++;
-
- /* Increment the correct count */
- switch (instClass) {
- case OP_ALU_INST:
- Program->NumAluInstructions++;
- break;
- case OP_TEX_INST:
- Program->NumTexInstructions++;
- break;
- }
-
- fp->Saturate = 0;
- fp->Precision = FLOAT32;
-
- fp->DstReg.CondMask = COND_TR;
-
- switch (type) {
- case OP_ALU_VECTOR:
- switch (code) {
- case OP_ABS_SAT:
- fp->Saturate = 1;
- case OP_ABS:
- fp->Opcode = FP_OPCODE_ABS;
- break;
-
- case OP_FLR_SAT:
- fp->Saturate = 1;
- case OP_FLR:
- fp->Opcode = FP_OPCODE_FLR;
- break;
-
- case OP_FRC_SAT:
- fp->Saturate = 1;
- case OP_FRC:
- fp->Opcode = FP_OPCODE_FRC;
- break;
-
- case OP_LIT_SAT:
- fp->Saturate = 1;
- case OP_LIT:
- fp->Opcode = FP_OPCODE_LIT;
- break;
-
- case OP_MOV_SAT:
- fp->Saturate = 1;
- case OP_MOV:
- fp->Opcode = FP_OPCODE_MOV;
- break;
- }
-
- if (parse_masked_dst_reg
- (ctx, inst, vc_head, Program, (GLint *) & fp->DstReg.File,
- &fp->DstReg.Index, fp->DstReg.WriteMask))
- return 1;
-
- fp->SrcReg[0].Abs = GL_FALSE;
- fp->SrcReg[0].NegateAbs = GL_FALSE;
- if (parse_vector_src_reg
- (ctx, inst, vc_head, Program, (GLint *) & fp->SrcReg[0].File,
- &fp->SrcReg[0].Index, &fp->SrcReg[0].NegateBase,
- swz, &rel))
- return 1;
- for (b=0; b<4; b++)
- fp->SrcReg[0].Swizzle[b] = swz[b];
- break;
-
- case OP_ALU_SCALAR:
- switch (code) {
- case OP_COS_SAT:
- fp->Saturate = 1;
- case OP_COS:
- fp->Opcode = FP_OPCODE_COS;
- break;
-
- case OP_EX2_SAT:
- fp->Saturate = 1;
- case OP_EX2:
- fp->Opcode = FP_OPCODE_EX2;
- break;
-
- case OP_LG2_SAT:
- fp->Saturate = 1;
- case OP_LG2:
- fp->Opcode = FP_OPCODE_LG2;
- break;
-
- case OP_RCP_SAT:
- fp->Saturate = 1;
- case OP_RCP:
- fp->Opcode = FP_OPCODE_RCP;
- break;
-
- case OP_RSQ_SAT:
- fp->Saturate = 1;
- case OP_RSQ:
- fp->Opcode = FP_OPCODE_RSQ;
- break;
-
- case OP_SIN_SAT:
- fp->Saturate = 1;
- case OP_SIN:
- fp->Opcode = FP_OPCODE_SIN;
- break;
-
- case OP_SCS_SAT:
- fp->Saturate = 1;
- case OP_SCS:
-
- fp->Opcode = FP_OPCODE_SCS;
- break;
- }
-
- if (parse_masked_dst_reg
- (ctx, inst, vc_head, Program, (GLint *) & fp->DstReg.File,
- &fp->DstReg.Index, fp->DstReg.WriteMask))
- return 1;
- fp->SrcReg[0].Abs = GL_FALSE;
- fp->SrcReg[0].NegateAbs = GL_FALSE;
- if (parse_scalar_src_reg
- (ctx, inst, vc_head, Program, (GLint *) & fp->SrcReg[0].File,
- &fp->SrcReg[0].Index, &fp->SrcReg[0].NegateBase,
- swz, &rel))
- return 1;
- for (b=0; b<4; b++)
- fp->SrcReg[0].Swizzle[b] = swz[b];
- break;
-
- case OP_ALU_BINSC:
- switch (code) {
- case OP_POW_SAT:
- fp->Saturate = 1;
- case OP_POW:
- fp->Opcode = FP_OPCODE_POW;
- break;
- }
-
- if (parse_masked_dst_reg
- (ctx, inst, vc_head, Program, (GLint *) & fp->DstReg.File,
- &fp->DstReg.Index, fp->DstReg.WriteMask))
- return 1;
- for (a = 0; a < 2; a++) {
- fp->SrcReg[a].Abs = GL_FALSE;
- fp->SrcReg[a].NegateAbs = GL_FALSE;
- if (parse_scalar_src_reg
- (ctx, inst, vc_head, Program, (GLint *) & fp->SrcReg[a].File,
- &fp->SrcReg[a].Index, &fp->SrcReg[a].NegateBase,
- swz, &rel))
- return 1;
- for (b=0; b<4; b++)
- fp->SrcReg[a].Swizzle[b] = swz[b];
- }
- break;
-
-
- case OP_ALU_BIN:
- switch (code) {
- case OP_ADD_SAT:
- fp->Saturate = 1;
- case OP_ADD:
- fp->Opcode = FP_OPCODE_ADD;
- break;
-
- case OP_DP3_SAT:
- fp->Saturate = 1;
- case OP_DP3:
- fp->Opcode = FP_OPCODE_DP3;
- break;
-
- case OP_DP4_SAT:
- fp->Saturate = 1;
- case OP_DP4:
- fp->Opcode = FP_OPCODE_DP4;
- break;
-
- case OP_DPH_SAT:
- fp->Saturate = 1;
- case OP_DPH:
- fp->Opcode = FP_OPCODE_DPH;
- break;
-
- case OP_DST_SAT:
- fp->Saturate = 1;
- case OP_DST:
- fp->Opcode = FP_OPCODE_DST;
- break;
-
- case OP_MAX_SAT:
- fp->Saturate = 1;
- case OP_MAX:
- fp->Opcode = FP_OPCODE_MAX;
- break;
-
- case OP_MIN_SAT:
- fp->Saturate = 1;
- case OP_MIN:
- fp->Opcode = FP_OPCODE_MIN;
- break;
-
- case OP_MUL_SAT:
- fp->Saturate = 1;
- case OP_MUL:
- fp->Opcode = FP_OPCODE_MUL;
- break;
-
- case OP_SGE_SAT:
- fp->Saturate = 1;
- case OP_SGE:
- fp->Opcode = FP_OPCODE_SGE;
- break;
-
- case OP_SLT_SAT:
- fp->Saturate = 1;
- case OP_SLT:
- fp->Opcode = FP_OPCODE_SLT;
- break;
-
- case OP_SUB_SAT:
- fp->Saturate = 1;
- case OP_SUB:
- fp->Opcode = FP_OPCODE_SUB;
- break;
-
- case OP_XPD_SAT:
- fp->Saturate = 1;
- case OP_XPD:
- fp->Opcode = FP_OPCODE_X2D;
- break;
- }
-
- if (parse_masked_dst_reg
- (ctx, inst, vc_head, Program, (GLint *) & fp->DstReg.File,
- &fp->DstReg.Index, fp->DstReg.WriteMask))
- return 1;
- for (a = 0; a < 2; a++) {
- fp->SrcReg[a].Abs = GL_FALSE;
- fp->SrcReg[a].NegateAbs = GL_FALSE;
- if (parse_vector_src_reg
- (ctx, inst, vc_head, Program, (GLint *) & fp->SrcReg[a].File,
- &fp->SrcReg[a].Index, &fp->SrcReg[a].NegateBase,
- swz, &rel))
- return 1;
- for (b=0; b<4; b++)
- fp->SrcReg[a].Swizzle[b] = swz[b];
- }
- break;
-
- case OP_ALU_TRI:
- switch (code) {
- case OP_CMP_SAT:
- fp->Saturate = 1;
- case OP_CMP:
- fp->Opcode = FP_OPCODE_CMP;
- break;
-
- case OP_LRP_SAT:
- fp->Saturate = 1;
- case OP_LRP:
- fp->Opcode = FP_OPCODE_LRP;
- break;
-
- case OP_MAD_SAT:
- fp->Saturate = 1;
- case OP_MAD:
- fp->Opcode = FP_OPCODE_MAD;
- break;
- }
-
- if (parse_masked_dst_reg
- (ctx, inst, vc_head, Program, (GLint *) & fp->DstReg.File,
- &fp->DstReg.Index, fp->DstReg.WriteMask))
- return 1;
- for (a = 0; a < 3; a++) {
- fp->SrcReg[a].Abs = GL_FALSE;
- fp->SrcReg[a].NegateAbs = GL_FALSE;
- if (parse_vector_src_reg
- (ctx, inst, vc_head, Program, (GLint *) & fp->SrcReg[a].File,
- &fp->SrcReg[a].Index, &fp->SrcReg[a].NegateBase,
- swz, &rel))
- return 1;
- for (b=0; b<4; b++)
- fp->SrcReg[a].Swizzle[b] = swz[b];
- }
- break;
-
- case OP_ALU_SWZ:
- switch (code) {
- case OP_SWZ_SAT:
- fp->Saturate = 1;
- case OP_SWZ:
- fp->Opcode = FP_OPCODE_SWZ;
- break;
- }
- if (parse_masked_dst_reg
- (ctx, inst, vc_head, Program, (GLint *) & fp->DstReg.File,
- &fp->DstReg.Index, fp->DstReg.WriteMask))
- return 1;
-
- if (parse_src_reg
- (ctx, inst, vc_head, Program, (GLint *) & fp->SrcReg[0].File,
- &fp->SrcReg[0].Index, &rel))
- return 1;
- parse_extended_swizzle_mask (inst, swz,
- &fp->SrcReg[0].NegateBase);
- for (b=0; b<4; b++)
- fp->SrcReg[0].Swizzle[b] = swz[b];
- break;
-
- case OP_TEX_SAMPLE:
- switch (code) {
- case OP_TEX_SAT:
- fp->Saturate = 1;
- case OP_TEX:
- fp->Opcode = FP_OPCODE_TEX;
- break;
-
- case OP_TXP_SAT:
- fp->Saturate = 1;
- case OP_TXP:
- fp->Opcode = FP_OPCODE_TXP;
- break;
-
- case OP_TXB_SAT:
-
- fp->Saturate = 1;
- case OP_TXB:
- fp->Opcode = FP_OPCODE_TXB;
- break;
- }
-
- if (parse_masked_dst_reg
- (ctx, inst, vc_head, Program, (GLint *) & fp->DstReg.File,
- &fp->DstReg.Index, fp->DstReg.WriteMask))
- return 1;
- fp->SrcReg[0].Abs = GL_FALSE;
- fp->SrcReg[0].NegateAbs = GL_FALSE;
- if (parse_vector_src_reg
- (ctx, inst, vc_head, Program, (GLint *) & fp->SrcReg[0].File,
- &fp->SrcReg[0].Index, &fp->SrcReg[0].NegateBase,
- swz, &rel))
- return 1;
- for (b=0; b<4; b++)
- fp->SrcReg[0].Swizzle[b] = swz[b];
-
- /* texImageUnit */
- if (parse_texcoord_num (ctx, inst, Program, &texcoord))
- return 1;
- fp->TexSrcUnit = texcoord;
-
- /* texTarget */
- switch (*(*inst)++) {
- case TEXTARGET_1D:
- fp->TexSrcBit = TEXTURE_1D_BIT;
- break;
- case TEXTARGET_2D:
- fp->TexSrcBit = TEXTURE_2D_BIT;
- break;
- case TEXTARGET_3D:
- fp->TexSrcBit = TEXTURE_3D_BIT;
- break;
- case TEXTARGET_RECT:
- fp->TexSrcBit = TEXTURE_RECT_BIT;
- break;
- case TEXTARGET_CUBE:
- fp->TexSrcBit = TEXTURE_CUBE_BIT;
- break;
- }
- Program->TexturesUsed[texcoord] |= fp->TexSrcBit;
- break;
-
- case OP_TEX_KIL:
- fp->Opcode = FP_OPCODE_KIL;
- fp->SrcReg[0].Abs = GL_FALSE;
- fp->SrcReg[0].NegateAbs = GL_FALSE;
- if (parse_vector_src_reg
- (ctx, inst, vc_head, Program, (GLint *) & fp->SrcReg[0].File,
- &fp->SrcReg[0].Index, &fp->SrcReg[0].NegateBase,
- swz, &rel))
- return 1;
- for (b=0; b<4; b++)
- fp->SrcReg[0].Swizzle[b] = swz[b];
- break;
- }
-
- return 0;
-}
-
-/**
- * This is a big mother that handles getting opcodes into the instruction
- * and handling the src & dst registers for vertex program instructions
- */
-static GLuint
-parse_vp_instruction (GLcontext * ctx, GLubyte ** inst,
- struct var_cache **vc_head, struct arb_program *Program,
- struct vp_instruction *vp)
-{
- GLint a;
- GLubyte type, code;
-
- /* OP_ALU_{ARL, VECTOR, SCALAR, BINSC, BIN, TRI, SWZ} */
- type = *(*inst)++;
-
- /* The actual opcode name */
- code = *(*inst)++;
-
- /* Record the position in the program string for debugging */
- vp->StringPos = Program->Position;
-
- vp->SrcReg[0].RelAddr = vp->SrcReg[1].RelAddr = vp->SrcReg[2].RelAddr = 0;
-
- for (a = 0; a < 4; a++) {
- vp->SrcReg[0].Swizzle[a] = a;
- vp->SrcReg[1].Swizzle[a] = a;
- vp->SrcReg[2].Swizzle[a] = a;
- vp->DstReg.WriteMask[a] = 1;
- }
-
- switch (type) {
- /* XXX: */
- case OP_ALU_ARL:
- vp->Opcode = VP_OPCODE_ARL;
-
- /* Remember to set SrcReg.RelAddr; */
-
- /* Get the masked address register [dst] */
- if (parse_masked_address_reg
- (ctx, inst, vc_head, Program, &vp->DstReg.Index,
- vp->DstReg.WriteMask))
- return 1;
- vp->DstReg.File = PROGRAM_ADDRESS;
-
- /* Get a scalar src register */
- if (parse_scalar_src_reg
- (ctx, inst, vc_head, Program, (GLint *) & vp->SrcReg[0].File,
- &vp->SrcReg[0].Index, &vp->SrcReg[0].Negate,
- vp->SrcReg[0].Swizzle, &vp->SrcReg[0].RelAddr))
- return 1;
-
- break;
-
- case OP_ALU_VECTOR:
- switch (code) {
- case OP_ABS:
- vp->Opcode = VP_OPCODE_ABS;
- break;
- case OP_FLR:
- vp->Opcode = VP_OPCODE_FLR;
- break;
- case OP_FRC:
- vp->Opcode = VP_OPCODE_FRC;
- break;
- case OP_LIT:
- vp->Opcode = VP_OPCODE_LIT;
- break;
- case OP_MOV:
- vp->Opcode = VP_OPCODE_MOV;
- break;
- }
- if (parse_masked_dst_reg
- (ctx, inst, vc_head, Program, (GLint *) & vp->DstReg.File,
- &vp->DstReg.Index, vp->DstReg.WriteMask))
- return 1;
- if (parse_vector_src_reg
- (ctx, inst, vc_head, Program, (GLint *) & vp->SrcReg[0].File,
- &vp->SrcReg[0].Index, &vp->SrcReg[0].Negate,
- vp->SrcReg[0].Swizzle, &vp->SrcReg[0].RelAddr))
- return 1;
- break;
-
- case OP_ALU_SCALAR:
- switch (code) {
- case OP_EX2:
- vp->Opcode = VP_OPCODE_EX2;
- break;
- case OP_EXP:
- vp->Opcode = VP_OPCODE_EXP;
- break;
- case OP_LG2:
- vp->Opcode = VP_OPCODE_LG2;
- break;
- case OP_LOG:
- vp->Opcode = VP_OPCODE_LOG;
- break;
- case OP_RCP:
- vp->Opcode = VP_OPCODE_RCP;
- break;
- case OP_RSQ:
- vp->Opcode = VP_OPCODE_RSQ;
- break;
- }
- if (parse_masked_dst_reg
- (ctx, inst, vc_head, Program, (GLint *) & vp->DstReg.File,
- &vp->DstReg.Index, vp->DstReg.WriteMask))
- return 1;
- if (parse_scalar_src_reg
- (ctx, inst, vc_head, Program, (GLint *) & vp->SrcReg[0].File,
- &vp->SrcReg[0].Index, &vp->SrcReg[0].Negate,
- vp->SrcReg[0].Swizzle, &vp->SrcReg[0].RelAddr))
- return 1;
- break;
-
- case OP_ALU_BINSC:
- switch (code) {
- case OP_POW:
- vp->Opcode = VP_OPCODE_POW;
- break;
- }
- if (parse_masked_dst_reg
- (ctx, inst, vc_head, Program, (GLint *) & vp->DstReg.File,
- &vp->DstReg.Index, vp->DstReg.WriteMask))
- return 1;
- for (a = 0; a < 2; a++) {
- if (parse_scalar_src_reg
- (ctx, inst, vc_head, Program, (GLint *) & vp->SrcReg[a].File,
- &vp->SrcReg[a].Index, &vp->SrcReg[a].Negate,
- vp->SrcReg[a].Swizzle, &vp->SrcReg[a].RelAddr))
- return 1;
- }
- break;
-
- case OP_ALU_BIN:
- switch (code) {
- case OP_ADD:
- vp->Opcode = VP_OPCODE_ADD;
- break;
- case OP_DP3:
- vp->Opcode = VP_OPCODE_DP3;
- break;
- case OP_DP4:
- vp->Opcode = VP_OPCODE_DP4;
- break;
- case OP_DPH:
- vp->Opcode = VP_OPCODE_DPH;
- break;
- case OP_DST:
- vp->Opcode = VP_OPCODE_DST;
- break;
- case OP_MAX:
- vp->Opcode = VP_OPCODE_MAX;
- break;
- case OP_MIN:
- vp->Opcode = VP_OPCODE_MIN;
- break;
- case OP_MUL:
- vp->Opcode = VP_OPCODE_MUL;
- break;
- case OP_SGE:
- vp->Opcode = VP_OPCODE_SGE;
- break;
- case OP_SLT:
- vp->Opcode = VP_OPCODE_SLT;
- break;
- case OP_SUB:
- vp->Opcode = VP_OPCODE_SUB;
- break;
- case OP_XPD:
- vp->Opcode = VP_OPCODE_XPD;
- break;
- }
- if (parse_masked_dst_reg
- (ctx, inst, vc_head, Program, (GLint *) & vp->DstReg.File,
- &vp->DstReg.Index, vp->DstReg.WriteMask))
- return 1;
- for (a = 0; a < 2; a++) {
- if (parse_vector_src_reg
- (ctx, inst, vc_head, Program, (GLint *) & vp->SrcReg[a].File,
- &vp->SrcReg[a].Index, &vp->SrcReg[a].Negate,
- vp->SrcReg[a].Swizzle, &vp->SrcReg[a].RelAddr))
- return 1;
- }
- break;
-
- case OP_ALU_TRI:
- switch (code) {
- case OP_MAD:
- vp->Opcode = VP_OPCODE_MAD;
- break;
- }
-
- if (parse_masked_dst_reg
- (ctx, inst, vc_head, Program, (GLint *) & vp->DstReg.File,
- &vp->DstReg.Index, vp->DstReg.WriteMask))
- return 1;
- for (a = 0; a < 3; a++) {
- if (parse_vector_src_reg
- (ctx, inst, vc_head, Program, (GLint *) & vp->SrcReg[a].File,
- &vp->SrcReg[a].Index, &vp->SrcReg[a].Negate,
- vp->SrcReg[a].Swizzle, &vp->SrcReg[a].RelAddr))
- return 1;
- }
- break;
-
- case OP_ALU_SWZ:
- switch (code) {
- case OP_SWZ:
- vp->Opcode = VP_OPCODE_SWZ;
- break;
- }
- if (parse_masked_dst_reg
- (ctx, inst, vc_head, Program, (GLint *) & vp->DstReg.File,
- &vp->DstReg.Index, vp->DstReg.WriteMask))
- return 1;
-
- if (parse_src_reg
- (ctx, inst, vc_head, Program, (GLint *) & vp->SrcReg[0].File,
- &vp->SrcReg[0].Index, &vp->SrcReg[0].RelAddr))
- return 1;
- parse_extended_swizzle_mask (inst, vp->SrcReg[0].Swizzle,
- &vp->SrcReg[0].Negate);
- break;
- }
- return 0;
-}
-
-#if DEBUG_PARSING
-
-static GLvoid
-print_state_token (GLint token)
-{
- switch (token) {
- case STATE_MATERIAL:
- fprintf (stderr, "STATE_MATERIAL ");
- break;
- case STATE_LIGHT:
- fprintf (stderr, "STATE_LIGHT ");
- break;
-
- case STATE_LIGHTMODEL_AMBIENT:
- fprintf (stderr, "STATE_AMBIENT ");
- break;
-
- case STATE_LIGHTMODEL_SCENECOLOR:
- fprintf (stderr, "STATE_SCENECOLOR ");
- break;
-
- case STATE_LIGHTPROD:
- fprintf (stderr, "STATE_LIGHTPROD ");
- break;
-
- case STATE_TEXGEN:
- fprintf (stderr, "STATE_TEXGEN ");
- break;
-
- case STATE_FOG_COLOR:
- fprintf (stderr, "STATE_FOG_COLOR ");
- break;
-
- case STATE_FOG_PARAMS:
- fprintf (stderr, "STATE_FOG_PARAMS ");
- break;
-
- case STATE_CLIPPLANE:
- fprintf (stderr, "STATE_CLIPPLANE ");
- break;
-
- case STATE_POINT_SIZE:
- fprintf (stderr, "STATE_POINT_SIZE ");
- break;
-
- case STATE_POINT_ATTENUATION:
- fprintf (stderr, "STATE_ATTENUATION ");
- break;
-
- case STATE_MATRIX:
- fprintf (stderr, "STATE_MATRIX ");
- break;
-
- case STATE_MODELVIEW:
- fprintf (stderr, "STATE_MODELVIEW ");
- break;
-
- case STATE_PROJECTION:
- fprintf (stderr, "STATE_PROJECTION ");
- break;
-
- case STATE_MVP:
- fprintf (stderr, "STATE_MVP ");
- break;
-
- case STATE_TEXTURE:
- fprintf (stderr, "STATE_TEXTURE ");
- break;
-
- case STATE_PROGRAM:
- fprintf (stderr, "STATE_PROGRAM ");
- break;
-
- case STATE_MATRIX_INVERSE:
- fprintf (stderr, "STATE_INVERSE ");
- break;
-
- case STATE_MATRIX_TRANSPOSE:
- fprintf (stderr, "STATE_TRANSPOSE ");
- break;
-
- case STATE_MATRIX_INVTRANS:
- fprintf (stderr, "STATE_INVTRANS ");
- break;
-
- case STATE_AMBIENT:
- fprintf (stderr, "STATE_AMBIENT ");
- break;
-
- case STATE_DIFFUSE:
- fprintf (stderr, "STATE_DIFFUSE ");
- break;
-
- case STATE_SPECULAR:
- fprintf (stderr, "STATE_SPECULAR ");
- break;
-
- case STATE_EMISSION:
- fprintf (stderr, "STATE_EMISSION ");
- break;
-
- case STATE_SHININESS:
- fprintf (stderr, "STATE_SHININESS ");
- break;
-
- case STATE_HALF:
- fprintf (stderr, "STATE_HALF ");
- break;
-
- case STATE_POSITION:
- fprintf (stderr, "STATE_POSITION ");
- break;
-
- case STATE_ATTENUATION:
- fprintf (stderr, "STATE_ATTENUATION ");
- break;
-
- case STATE_SPOT_DIRECTION:
- fprintf (stderr, "STATE_DIRECTION ");
- break;
-
- case STATE_TEXGEN_EYE_S:
- fprintf (stderr, "STATE_TEXGEN_EYE_S ");
- break;
-
- case STATE_TEXGEN_EYE_T:
- fprintf (stderr, "STATE_TEXGEN_EYE_T ");
- break;
-
- case STATE_TEXGEN_EYE_R:
- fprintf (stderr, "STATE_TEXGEN_EYE_R ");
- break;
-
- case STATE_TEXGEN_EYE_Q:
- fprintf (stderr, "STATE_TEXGEN_EYE_Q ");
- break;
-
- case STATE_TEXGEN_OBJECT_S:
- fprintf (stderr, "STATE_TEXGEN_EYE_S ");
- break;
-
- case STATE_TEXGEN_OBJECT_T:
- fprintf (stderr, "STATE_TEXGEN_OBJECT_T ");
- break;
-
- case STATE_TEXGEN_OBJECT_R:
- fprintf (stderr, "STATE_TEXGEN_OBJECT_R ");
- break;
-
- case STATE_TEXGEN_OBJECT_Q:
- fprintf (stderr, "STATE_TEXGEN_OBJECT_Q ");
- break;
-
- case STATE_TEXENV_COLOR:
- fprintf (stderr, "STATE_TEXENV_COLOR ");
- break;
-
- case STATE_DEPTH_RANGE:
- fprintf (stderr, "STATE_DEPTH_RANGE ");
- break;
-
- case STATE_VERTEX_PROGRAM:
- fprintf (stderr, "STATE_VERTEX_PROGRAM ");
- break;
-
- case STATE_FRAGMENT_PROGRAM:
- fprintf (stderr, "STATE_FRAGMENT_PROGRAM ");
- break;
-
- case STATE_ENV:
- fprintf (stderr, "STATE_ENV ");
- break;
-
- case STATE_LOCAL:
- fprintf (stderr, "STATE_LOCAL ");
- break;
-
- }
- fprintf (stderr, "[%d] ", token);
-}
-
-
-static GLvoid
-debug_variables (GLcontext * ctx, struct var_cache *vc_head,
- struct arb_program *Program)
-{
- struct var_cache *vc;
- GLint a, b;
-
- fprintf (stderr, "debug_variables, vc_head: %x\n", vc_head);
-
- /* First of all, print out the contents of the var_cache */
- vc = vc_head;
- while (vc) {
- fprintf (stderr, "[%x]\n", vc);
- switch (vc->type) {
- case vt_none:
- fprintf (stderr, "UNDEFINED %s\n", vc->name);
- break;
- case vt_attrib:
- fprintf (stderr, "ATTRIB %s\n", vc->name);
- fprintf (stderr, " binding: 0x%x\n", vc->attrib_binding);
- break;
- case vt_param:
- fprintf (stderr, "PARAM %s begin: %d len: %d\n", vc->name,
- vc->param_binding_begin, vc->param_binding_length);
- b = vc->param_binding_begin;
- for (a = 0; a < vc->param_binding_length; a++) {
- fprintf (stderr, "%s\n",
- Program->Parameters->Parameters[a + b].Name);
- if (Program->Parameters->Parameters[a + b].Type == STATE) {
- print_state_token (Program->Parameters->Parameters[a + b].
- StateIndexes[0]);
- print_state_token (Program->Parameters->Parameters[a + b].
- StateIndexes[1]);
- print_state_token (Program->Parameters->Parameters[a + b].
- StateIndexes[2]);
- print_state_token (Program->Parameters->Parameters[a + b].
- StateIndexes[3]);
- print_state_token (Program->Parameters->Parameters[a + b].
- StateIndexes[4]);
- print_state_token (Program->Parameters->Parameters[a + b].
- StateIndexes[5]);
- }
- else
- fprintf (stderr, "%f %f %f %f\n",
- Program->Parameters->Parameters[a + b].Values[0],
- Program->Parameters->Parameters[a + b].Values[1],
- Program->Parameters->Parameters[a + b].Values[2],
- Program->Parameters->Parameters[a + b].Values[3]);
- }
- break;
- case vt_temp:
- fprintf (stderr, "TEMP %s\n", vc->name);
- fprintf (stderr, " binding: 0x%x\n", vc->temp_binding);
- break;
- case vt_output:
- fprintf (stderr, "OUTPUT %s\n", vc->name);
- fprintf (stderr, " binding: 0x%x\n", vc->output_binding);
- break;
- case vt_alias:
- fprintf (stderr, "ALIAS %s\n", vc->name);
- fprintf (stderr, " binding: 0x%x (%s)\n",
- vc->alias_binding, vc->alias_binding->name);
- break;
- }
- vc = vc->next;
- }
-}
-
-#endif
-
-
-/**
- * The main loop for parsing a fragment or vertex program
- *
- * \return 0 on sucess, 1 on error
- */
-static GLint
-parse_arb_program (GLcontext * ctx, GLubyte * inst, struct var_cache **vc_head,
- struct arb_program *Program)
-{
- GLint err = 0;
-
- Program->MajorVersion = (GLuint) * inst++;
- Program->MinorVersion = (GLuint) * inst++;
-
- while (*inst != END) {
- switch (*inst++) {
-
- case OPTION:
- switch (*inst++) {
- case ARB_PRECISION_HINT_FASTEST:
- Program->PrecisionOption = GL_FASTEST;
- break;
-
- case ARB_PRECISION_HINT_NICEST:
- Program->PrecisionOption = GL_NICEST;
- break;
-
- case ARB_FOG_EXP:
- Program->FogOption = GL_EXP;
- break;
-
- case ARB_FOG_EXP2:
- Program->FogOption = GL_EXP2;
- break;
-
- case ARB_FOG_LINEAR:
- Program->FogOption = GL_LINEAR;
- break;
-
- case ARB_POSITION_INVARIANT:
- if (Program->Base.Target == GL_VERTEX_PROGRAM_ARB)
- Program->HintPositionInvariant = 1;
- break;
- }
- break;
-
- case INSTRUCTION:
- Program->Position = parse_position (&inst);
-
- if (Program->Base.Target == GL_FRAGMENT_PROGRAM_ARB) {
-
- /* Check the instruction count
- * XXX: Does END count as an instruction?
- */
- if (Program->Base.NumInstructions+1 == MAX_NV_FRAGMENT_PROGRAM_INSTRUCTIONS) {
- _mesa_set_program_error (ctx, Program->Position,
- "Max instruction count exceeded!");
- _mesa_error (ctx, GL_INVALID_OPERATION,
- "Max instruction count exceeded!");
- }
-
- /* Realloc Program->FPInstructions */
- Program->FPInstructions =
- (struct fp_instruction *) _mesa_realloc (Program->FPInstructions,
- Program->Base.NumInstructions*sizeof(struct fp_instruction),
- (Program->Base.NumInstructions+1)*sizeof (struct fp_instruction));
-
- /* parse the current instruction */
- err = parse_fp_instruction (ctx, &inst, vc_head, Program,
- &Program->FPInstructions[Program->Base.NumInstructions]);
-
- }
- else {
- /* Check the instruction count
- * XXX: Does END count as an instruction?
- */
- if (Program->Base.NumInstructions+1 == MAX_NV_VERTEX_PROGRAM_INSTRUCTIONS) {
- _mesa_set_program_error (ctx, Program->Position,
- "Max instruction count exceeded!");
- _mesa_error (ctx, GL_INVALID_OPERATION,
- "Max instruction count exceeded!");
- }
-
- /* Realloc Program->VPInstructions */
- Program->VPInstructions =
- (struct vp_instruction *) _mesa_realloc (Program->VPInstructions,
- Program->Base.NumInstructions*sizeof(struct vp_instruction),
- (Program->Base.NumInstructions +1)*sizeof(struct vp_instruction));
-
- /* parse the current instruction */
- err = parse_vp_instruction (ctx, &inst, vc_head, Program,
- &Program->VPInstructions[Program->Base.NumInstructions]);
- }
-
- /* increment Program->Base.NumInstructions */
- Program->Base.NumInstructions++;
- break;
-
- case DECLARATION:
- err = parse_declaration (ctx, &inst, vc_head, Program);
- break;
-
- default:
- break;
- }
-
- if (err)
- break;
- }
-
- /* Finally, tag on an OPCODE_END instruction */
- if (Program->Base.Target == GL_FRAGMENT_PROGRAM_ARB) {
- Program->FPInstructions =
- (struct fp_instruction *) _mesa_realloc (Program->FPInstructions,
- Program->Base.NumInstructions*sizeof(struct fp_instruction),
- (Program->Base.NumInstructions+1)*sizeof(struct fp_instruction));
-
- Program->FPInstructions[Program->Base.NumInstructions].Opcode = FP_OPCODE_END;
- /* YYY Wrong Position in program, whatever, at least not random -> crash
- Program->Position = parse_position (&inst);
- */
- Program->FPInstructions[Program->Base.NumInstructions].StringPos = Program->Position;
- }
- else {
- Program->VPInstructions =
- (struct vp_instruction *) _mesa_realloc (Program->VPInstructions,
- Program->Base.NumInstructions*sizeof(struct vp_instruction),
- (Program->Base.NumInstructions+1)*sizeof(struct vp_instruction));
-
- Program->VPInstructions[Program->Base.NumInstructions].Opcode = VP_OPCODE_END;
- /* YYY Wrong Position in program, whatever, at least not random -> crash
- Program->Position = parse_position (&inst);
- */
- Program->VPInstructions[Program->Base.NumInstructions].StringPos = Program->Position;
- }
-
- /* increment Program->Base.NumInstructions */
- Program->Base.NumInstructions++;
-
- return err;
-}
-
-
-/**
- * This kicks everything off.
- *
- * \param ctx - The GL Context
- * \param str - The program string
- * \param len - The program string length
- * \param Program - The arb_program struct to return all the parsed info in
- * \return 0 on success, 1 on error
- */
-GLuint
-_mesa_parse_arb_program (GLcontext * ctx, const GLubyte * str, GLsizei len,
- struct arb_program * program)
-{
- GLint a, err, error_pos;
- char error_msg[300];
- GLuint parsed_len;
- struct var_cache *vc_head;
- dict *dt;
- GLubyte *parsed, *inst;
- GLubyte *strCopy;
-
- /* init to zero in case of parse error */
- _mesa_bzero(program, sizeof(*program));
-
- /* Need a null-terminated string for parsing */
- strCopy = (GLubyte *) _mesa_malloc(len + 1);
- if (!strCopy) {
- _mesa_error (ctx, GL_OUT_OF_MEMORY, "glProgramStringARB");
- return 1;
- }
- _mesa_memcpy(strCopy, str, len);
- strCopy[len] = 0;
- str = strCopy;
-
-
-#if DEBUG_PARSING
- fprintf (stderr, "Loading grammar text!\n");
-#endif
- dt = grammar_load_from_text ((GLubyte *) arb_grammar_text);
- if (!dt) {
- grammar_get_last_error ((GLubyte *) error_msg, 300, &error_pos);
- _mesa_set_program_error (ctx, error_pos, error_msg);
- _mesa_error (ctx, GL_INVALID_OPERATION,
- "Error loading grammer rule set");
- _mesa_free(strCopy);
- return 1;
- }
-
-#if DEBUG_PARSING
- printf ("Checking Grammar!\n");
-#endif
- err = grammar_check (dt, str, &parsed, &parsed_len);
-
-
- /* Syntax parse error */
- if (err == 0) {
- grammar_get_last_error ((GLubyte *) error_msg, 300, &error_pos);
- _mesa_set_program_error (ctx, error_pos, error_msg);
- _mesa_error (ctx, GL_INVALID_OPERATION, "Parse Error");
-
- dict_destroy (&dt);
- _mesa_free(strCopy);
- return 1;
- }
-
-#if DEBUG_PARSING
- printf ("Destroying grammer dict [parse retval: %d]\n", err);
-#endif
- dict_destroy (&dt);
-
- /* Initialize the arb_program struct */
- program->Base.NumInstructions =
- program->Base.NumTemporaries =
- program->Base.NumParameters =
- program->Base.NumAttributes = program->Base.NumAddressRegs = 0;
- program->Parameters = _mesa_new_parameter_list ();
- program->InputsRead = 0;
- program->OutputsWritten = 0;
- program->Position = 0;
- program->MajorVersion = program->MinorVersion = 0;
- program->PrecisionOption = GL_DONT_CARE;
- program->FogOption = GL_NONE;
- program->HintPositionInvariant = GL_FALSE;
- for (a = 0; a < MAX_TEXTURE_IMAGE_UNITS; a++)
- program->TexturesUsed[a] = 0;
- program->NumAluInstructions =
- program->NumTexInstructions =
- program->NumTexIndirections = 0;
-
- program->FPInstructions = NULL;
- program->VPInstructions = NULL;
-
- vc_head = NULL;
- err = 0;
-
- /* Start examining the tokens in the array */
- inst = parsed;
-
- /* Check the grammer rev */
- if (*inst++ != REVISION) {
- _mesa_set_program_error (ctx, 0, "Grammar version mismatch");
- _mesa_error (ctx, GL_INVALID_OPERATION, "Grammar verison mismatch");
- err = 1;
- }
- else {
- switch (*inst++) {
- case FRAGMENT_PROGRAM:
- program->Base.Target = GL_FRAGMENT_PROGRAM_ARB;
- break;
-
- case VERTEX_PROGRAM:
- program->Base.Target = GL_VERTEX_PROGRAM_ARB;
- break;
- }
-
- err = parse_arb_program (ctx, inst, &vc_head, program);
-#if DEBUG_PARSING
- fprintf (stderr, "Symantic analysis returns %d [1 is bad!]\n", err);
-#endif
- }
-
- /*debug_variables(ctx, vc_head, program); */
-
- /* We're done with the parsed binary array */
- var_cache_destroy (&vc_head);
-
- _mesa_free (parsed);
- _mesa_free(strCopy);
-#if DEBUG_PARSING
- printf ("_mesa_parse_arb_program() done\n");
-#endif
-
- return err;
-}
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