diff options
| author | Jouk Jansen <[email protected]> | 2004-04-05 08:50:36 +0000 |
|---|---|---|
| committer | Jouk Jansen <[email protected]> | 2004-04-05 08:50:36 +0000 |
| commit | 40322e1dfa3366a779ba3f4a6ec4418ab9227715 (patch) | |
| tree | 1d8f57d59d38da61a48ded636bfca6ee095c0d26 /src/mesa/shader/arbprogparse.c | |
| parent | 8cc059ea6474c13bbba4f520ea1a63fd97a32450 (diff) | |
Committing in .
Correction on last commit (My FTP-server on linux is playing games with
<CR>'s)
Modified Files:
Mesa/src/mesa/drivers/common/descrip.mms
Mesa/src/mesa/main/descrip.mms
Mesa/src/mesa/shader/arbprogparse.c
Mesa/src/mesa/shader/descrip.mms
Mesa/src/mesa/swrast/descrip.mms Mesa/src/mesa/tnl/descrip.mms
----------------------------------------------------------------------
Diffstat (limited to 'src/mesa/shader/arbprogparse.c')
| -rw-r--r-- | src/mesa/shader/arbprogparse.c | 7906 |
1 files changed, 3953 insertions, 3953 deletions
diff --git a/src/mesa/shader/arbprogparse.c b/src/mesa/shader/arbprogparse.c index 6cbdd39d297..fb311f9f7f3 100644 --- a/src/mesa/shader/arbprogparse.c +++ b/src/mesa/shader/arbprogparse.c @@ -1,3953 +1,3953 @@ -/*
- * 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 arbprogparse.c
- * ARB_*_program parser core
- * \author 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 "arbprogparse.h"
-#include "grammar_mesa.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:
- * -----------------------------------------------------
- */
-
-/* Changes since moving the file to shader directory
-
-2004-III-4 ------------------------------------------------------------
-- added #include "grammar_mesa.h"
-- removed grammar specific code part (it resides now in grammar.c)
-- added GL_ARB_fragment_program_shadow tokens
-- modified #include "arbparse_syn.h"
-- major changes inside _mesa_parse_arb_program()
-- check the program string for '\0' characters
-- copy the program string to a one-byte-longer location to have
- it null-terminated
-- position invariance test (not writing to result.position) moved
- to syntax part
-*/
-
-typedef GLubyte *production;
-
-/**
- * This is the text describing the rules to parse the grammar
- */
-static char arb_grammar_text[] =
-#include "arbprogram_syn.h"
-;
-
-/**
- * These should match up with the values defined in arbprogram.syn
- */
-
-/*
- Changes:
- - changed and merged V_* and F_* opcode values to OP_*.
- - added GL_ARB_fragment_program_shadow specific tokens (michal)
-*/
-#define REVISION 0x07
-
-/* program type */
-#define FRAGMENT_PROGRAM 0x01
-#define VERTEX_PROGRAM 0x02
-
-/* program section */
-#define OPTION 0x01
-#define INSTRUCTION 0x02
-#define DECLARATION 0x03
-#define END 0x04
-
-/* GL_ARB_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
-
-/* GL_ARB_vertex_program option flags */
-#define ARB_POSITION_INVARIANT 0x20
-
-/* GL_ARB_fragment_program_shadow option flags */
-#define ARB_FRAGMENT_PROGRAM_SHADOW 0x40
-
-/* GL_ARB_fragment_program instruction class */
-#define OP_ALU_INST 0x00
-#define OP_TEX_INST 0x01
-
-/* GL_ARB_vertex_program instruction class */
-/* OP_ALU_INST */
-
-/* GL_ARB_fragment_program instruction type */
-#define OP_ALU_VECTOR 0x00
-#define OP_ALU_SCALAR 0x01
-#define OP_ALU_BINSC 0x02
-#define OP_ALU_BIN 0x03
-#define OP_ALU_TRI 0x04
-#define OP_ALU_SWZ 0x05
-#define OP_TEX_SAMPLE 0x06
-#define OP_TEX_KIL 0x07
-
-/* GL_ARB_vertex_program instruction type */
-#define OP_ALU_ARL 0x08
-/* OP_ALU_VECTOR */
-/* OP_ALU_SCALAR */
-/* OP_ALU_BINSC */
-/* OP_ALU_BIN */
-/* OP_ALU_TRI */
-/* OP_ALU_SWZ */
-
-/* GL_ARB_fragment_program 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
-
-/* GL_ARB_vertex_program 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
-/* GL_ARB_fragment_program_shadow */
-#define TEXTARGET_SHADOW1D 0x06
-#define TEXTARGET_SHADOW2D 0x07
-#define TEXTARGET_SHADOWRECT 0x08
-
-/* face type */
-#define FACE_FRONT 0x00
-#define FACE_BACK 0x01
-
-/* color type */
-#define COLOR_PRIMARY 0x00
-#define COLOR_SECONDARY 0x01
-
-/* component */
-#define COMPONENT_X 0x00
-#define COMPONENT_Y 0x01
-#define COMPONENT_Z 0x02
-#define COMPONENT_W 0x03
-#define COMPONENT_0 0x04
-#define COMPONENT_1 0x05
-
-/* array index type */
-#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
-/* GL_ARB_fragment_program */
-#define STATE_TEX_ENV 0x07
-#define STATE_DEPTH 0x08
-/* GL_ARB_vertex_program */
-#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
-/* GL_ARB_vertex_program */
-#define ADDRESS 0x06
-
-/*-----------------------------------------------------------------------
- * 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 < 0) || (*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 < 0) || (*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, specified_length, err;
- 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 */
- /* This test is done now in syntax portion - when position invariance OPTION
- is specified, "result.position" rule is disabled so there is no way
- to write the position
- */
- /*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, 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_XPD;
- 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;
- case TEXTARGET_SHADOW1D:
- case TEXTARGET_SHADOW2D:
- case TEXTARGET_SHADOWRECT:
- /* TODO ARB_fragment_program_shadow code */
- 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;
-
- case ARB_FRAGMENT_PROGRAM_SHADOW:
- if (Program->Base.Target == GL_FRAGMENT_PROGRAM_ARB) {
- /* TODO ARB_fragment_program_shadow code */
- }
- 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;
-}
-
-/* XXX temporary */
-static char core_grammar_text[] =
-#include "grammar_syn.h"
-;
-
-static int set_reg8 (GLcontext *ctx, grammar id, const byte *name, byte value)
-{
- char error_msg[300];
- GLint error_pos;
-
- if (grammar_set_reg8 (id, name, value))
- return 0;
-
- grammar_get_last_error ((byte *) error_msg, 300, &error_pos);
- _mesa_set_program_error (ctx, error_pos, error_msg);
- _mesa_error (ctx, GL_INVALID_OPERATION, "Grammar Register Error");
- return 1;
-}
-
-static int extension_is_supported (const GLubyte *ext)
-{
- const GLubyte *extensions = glGetString (GL_EXTENSIONS);
- const GLubyte *end = extensions + _mesa_strlen ((const char *) extensions);
- const GLint ext_len = _mesa_strlen ((const char *) ext);
-
- while (extensions < end)
- {
- const GLubyte *name_end = (const GLubyte *) strchr ((const char *) extensions, ' ');
- if (name_end == NULL)
- name_end = end;
- if (name_end - extensions == ext_len && _mesa_strncmp ((const char *) ext,
- (const char *) extensions, ext_len) == 0)
- return 1;
- extensions = name_end + 1;
- }
-
- return 0;
-}
-
-static int enable_ext (GLcontext *ctx, grammar id, const byte *name, const byte *extname)
-{
- if (extension_is_supported (extname))
- if (set_reg8 (ctx, id, name, 0x01))
- return 1;
- return 0;
-}
-
-/**
- * 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 sucess, 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;
- grammar arbprogram_syn_id;
- GLubyte *parsed, *inst;
- GLubyte *strz = NULL;
- static int arbprogram_syn_is_ok = 0; /* XXX temporary */
-
-#if DEBUG_PARSING
- fprintf (stderr, "Loading grammar text!\n");
-#endif
-
- /* check if the arb_grammar_text (arbprogram.syn) is syntactically correct */
- if (!arbprogram_syn_is_ok) {
- grammar grammar_syn_id;
- GLint err;
- GLuint parsed_len;
- byte *parsed;
-
- grammar_syn_id = grammar_load_from_text ((byte *) core_grammar_text);
- if (grammar_syn_id == 0) {
- grammar_get_last_error ((byte *) error_msg, 300, &error_pos);
- _mesa_set_program_error (ctx, error_pos, error_msg);
- _mesa_error (ctx, GL_INVALID_OPERATION,
- "Error loading grammar rule set");
- return 1;
- }
-
- err = grammar_check (grammar_syn_id, (byte *) arb_grammar_text, &parsed, &parsed_len);
-
- /* NOTE: we cant destroy grammar_syn_id right here because grammar_destroy() can
- reset the last error
- */
-
- if (err == 0) {
- grammar_get_last_error ((byte *) error_msg, 300, &error_pos);
- _mesa_set_program_error (ctx, error_pos, error_msg);
- _mesa_error (ctx, GL_INVALID_OPERATION, "Error loading grammar rule set");
-
- grammar_destroy (grammar_syn_id);
- return 1;
- }
-
- grammar_destroy (grammar_syn_id);
-
- arbprogram_syn_is_ok = 1;
- }
-
- /* create the grammar object */
- arbprogram_syn_id = grammar_load_from_text ((byte *) arb_grammar_text);
- if (arbprogram_syn_id == 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,
- "Error loading grammer rule set");
- return 1;
- }
-
- /* Set program_target register value */
- if (set_reg8 (ctx, arbprogram_syn_id, (byte *) "program_target",
- program->Base.Target == GL_FRAGMENT_PROGRAM_ARB ? 0x10 : 0x20)) {
- grammar_destroy (arbprogram_syn_id);
- return 1;
- }
-
- /* Enable all active extensions */
- if (enable_ext (ctx, arbprogram_syn_id,
- (byte *) "vertex_blend", (byte *) "GL_ARB_vertex_blend") ||
- enable_ext (ctx, arbprogram_syn_id,
- (byte *) "vertex_blend", (byte *) "GL_EXT_vertex_weighting") ||
- enable_ext (ctx, arbprogram_syn_id,
- (byte *) "matrix_palette", (byte *) "GL_ARB_matrix_palette") ||
- enable_ext (ctx, arbprogram_syn_id,
- (byte *) "point_parameters", (byte *) "GL_ARB_point_parameters") ||
- enable_ext (ctx, arbprogram_syn_id,
- (byte *) "point_parameters", (byte *) "GL_EXT_point_parameters") ||
- enable_ext (ctx, arbprogram_syn_id,
- (byte *) "secondary_color", (byte *) "GL_EXT_secondary_color") ||
- enable_ext (ctx, arbprogram_syn_id,
- (byte *) "fog_coord", (byte *) "GL_EXT_fog_coord") ||
- enable_ext (ctx, arbprogram_syn_id,
- (byte *) "texture_rectangle", (byte *) "GL_EXT_texture_rectangle") ||
- enable_ext (ctx, arbprogram_syn_id,
- (byte *) "texture_rectangle", (byte *) "GL_NV_texture_rectangle") ||
- enable_ext (ctx, arbprogram_syn_id,
- (byte *) "fragment_program_shadow", (byte *) "GL_ARB_fragment_program_shadow")) {
- grammar_destroy (arbprogram_syn_id);
- return 1;
- }
-
- /* check for NULL character occurences */
- {
- int i;
- for (i = 0; i < len; i++)
- if (str[i] == '\0') {
- _mesa_set_program_error (ctx, i, "invalid character");
- _mesa_error (ctx, GL_INVALID_OPERATION, "Lexical Error");
-
- grammar_destroy (arbprogram_syn_id);
- return 1;
- }
- }
-
- /* copy the program string to a null-terminated string */
- /* XXX should I check for NULL from malloc()? */
- strz = _mesa_malloc (len + 1);
- _mesa_memcpy (strz, str, len);
- strz[len] = '\0';
-
-#if DEBUG_PARSING
- printf ("Checking Grammar!\n");
-#endif
- err = grammar_check (arbprogram_syn_id, strz, &parsed, &parsed_len);
-
- /* Syntax parse error */
- if (err == 0) {
- _mesa_free (strz);
- 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");
-
- grammar_destroy (arbprogram_syn_id);
- return 1;
- }
-
-#if DEBUG_PARSING
- printf ("Destroying grammer dict [parse retval: %d]\n", err);
-#endif
- grammar_destroy (arbprogram_syn_id);
-
- /* Initialize the arb_program struct */
- program->Base.String = strz;
- 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);
-#if DEBUG_PARSING
- printf ("_mesa_parse_arb_program() done\n");
-#endif
- return err;
-}
+/* + * 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 arbprogparse.c + * ARB_*_program parser core + * \author 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 "arbprogparse.h" +#include "grammar_mesa.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: + * ----------------------------------------------------- + */ + +/* Changes since moving the file to shader directory + +2004-III-4 ------------------------------------------------------------ +- added #include "grammar_mesa.h" +- removed grammar specific code part (it resides now in grammar.c) +- added GL_ARB_fragment_program_shadow tokens +- modified #include "arbparse_syn.h" +- major changes inside _mesa_parse_arb_program() +- check the program string for '\0' characters +- copy the program string to a one-byte-longer location to have + it null-terminated +- position invariance test (not writing to result.position) moved + to syntax part +*/ + +typedef GLubyte *production; + +/** + * This is the text describing the rules to parse the grammar + */ +static char arb_grammar_text[] = +#include "arbprogram_syn.h" +; + +/** + * These should match up with the values defined in arbprogram.syn + */ + +/* + Changes: + - changed and merged V_* and F_* opcode values to OP_*. + - added GL_ARB_fragment_program_shadow specific tokens (michal) +*/ +#define REVISION 0x07 + +/* program type */ +#define FRAGMENT_PROGRAM 0x01 +#define VERTEX_PROGRAM 0x02 + +/* program section */ +#define OPTION 0x01 +#define INSTRUCTION 0x02 +#define DECLARATION 0x03 +#define END 0x04 + +/* GL_ARB_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 + +/* GL_ARB_vertex_program option flags */ +#define ARB_POSITION_INVARIANT 0x20 + +/* GL_ARB_fragment_program_shadow option flags */ +#define ARB_FRAGMENT_PROGRAM_SHADOW 0x40 + +/* GL_ARB_fragment_program instruction class */ +#define OP_ALU_INST 0x00 +#define OP_TEX_INST 0x01 + +/* GL_ARB_vertex_program instruction class */ +/* OP_ALU_INST */ + +/* GL_ARB_fragment_program instruction type */ +#define OP_ALU_VECTOR 0x00 +#define OP_ALU_SCALAR 0x01 +#define OP_ALU_BINSC 0x02 +#define OP_ALU_BIN 0x03 +#define OP_ALU_TRI 0x04 +#define OP_ALU_SWZ 0x05 +#define OP_TEX_SAMPLE 0x06 +#define OP_TEX_KIL 0x07 + +/* GL_ARB_vertex_program instruction type */ +#define OP_ALU_ARL 0x08 +/* OP_ALU_VECTOR */ +/* OP_ALU_SCALAR */ +/* OP_ALU_BINSC */ +/* OP_ALU_BIN */ +/* OP_ALU_TRI */ +/* OP_ALU_SWZ */ + +/* GL_ARB_fragment_program 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 + +/* GL_ARB_vertex_program 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 +/* GL_ARB_fragment_program_shadow */ +#define TEXTARGET_SHADOW1D 0x06 +#define TEXTARGET_SHADOW2D 0x07 +#define TEXTARGET_SHADOWRECT 0x08 + +/* face type */ +#define FACE_FRONT 0x00 +#define FACE_BACK 0x01 + +/* color type */ +#define COLOR_PRIMARY 0x00 +#define COLOR_SECONDARY 0x01 + +/* component */ +#define COMPONENT_X 0x00 +#define COMPONENT_Y 0x01 +#define COMPONENT_Z 0x02 +#define COMPONENT_W 0x03 +#define COMPONENT_0 0x04 +#define COMPONENT_1 0x05 + +/* array index type */ +#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 +/* GL_ARB_fragment_program */ +#define STATE_TEX_ENV 0x07 +#define STATE_DEPTH 0x08 +/* GL_ARB_vertex_program */ +#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 +/* GL_ARB_vertex_program */ +#define ADDRESS 0x06 + +/*----------------------------------------------------------------------- + * 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 < 0) || (*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 < 0) || (*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, specified_length, err; + 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 */ + /* This test is done now in syntax portion - when position invariance OPTION + is specified, "result.position" rule is disabled so there is no way + to write the position + */ + /*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, 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_XPD; + 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; + case TEXTARGET_SHADOW1D: + case TEXTARGET_SHADOW2D: + case TEXTARGET_SHADOWRECT: + /* TODO ARB_fragment_program_shadow code */ + 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; + + case ARB_FRAGMENT_PROGRAM_SHADOW: + if (Program->Base.Target == GL_FRAGMENT_PROGRAM_ARB) { + /* TODO ARB_fragment_program_shadow code */ + } + 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; +} + +/* XXX temporary */ +static char core_grammar_text[] = +#include "grammar_syn.h" +; + +static int set_reg8 (GLcontext *ctx, grammar id, const byte *name, byte value) +{ + char error_msg[300]; + GLint error_pos; + + if (grammar_set_reg8 (id, name, value)) + return 0; + + grammar_get_last_error ((byte *) error_msg, 300, &error_pos); + _mesa_set_program_error (ctx, error_pos, error_msg); + _mesa_error (ctx, GL_INVALID_OPERATION, "Grammar Register Error"); + return 1; +} + +static int extension_is_supported (const GLubyte *ext) +{ + const GLubyte *extensions = glGetString (GL_EXTENSIONS); + const GLubyte *end = extensions + _mesa_strlen ((const char *) extensions); + const GLint ext_len = _mesa_strlen ((const char *) ext); + + while (extensions < end) + { + const GLubyte *name_end = (const GLubyte *) strchr ((const char *) extensions, ' '); + if (name_end == NULL) + name_end = end; + if (name_end - extensions == ext_len && _mesa_strncmp ((const char *) ext, + (const char *) extensions, ext_len) == 0) + return 1; + extensions = name_end + 1; + } + + return 0; +} + +static int enable_ext (GLcontext *ctx, grammar id, const byte *name, const byte *extname) +{ + if (extension_is_supported (extname)) + if (set_reg8 (ctx, id, name, 0x01)) + return 1; + return 0; +} + +/** + * 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 sucess, 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; + grammar arbprogram_syn_id; + GLubyte *parsed, *inst; + GLubyte *strz = NULL; + static int arbprogram_syn_is_ok = 0; /* XXX temporary */ + +#if DEBUG_PARSING + fprintf (stderr, "Loading grammar text!\n"); +#endif + + /* check if the arb_grammar_text (arbprogram.syn) is syntactically correct */ + if (!arbprogram_syn_is_ok) { + grammar grammar_syn_id; + GLint err; + GLuint parsed_len; + byte *parsed; + + grammar_syn_id = grammar_load_from_text ((byte *) core_grammar_text); + if (grammar_syn_id == 0) { + grammar_get_last_error ((byte *) error_msg, 300, &error_pos); + _mesa_set_program_error (ctx, error_pos, error_msg); + _mesa_error (ctx, GL_INVALID_OPERATION, + "Error loading grammar rule set"); + return 1; + } + + err = grammar_check (grammar_syn_id, (byte *) arb_grammar_text, &parsed, &parsed_len); + + /* NOTE: we cant destroy grammar_syn_id right here because grammar_destroy() can + reset the last error + */ + + if (err == 0) { + grammar_get_last_error ((byte *) error_msg, 300, &error_pos); + _mesa_set_program_error (ctx, error_pos, error_msg); + _mesa_error (ctx, GL_INVALID_OPERATION, "Error loading grammar rule set"); + + grammar_destroy (grammar_syn_id); + return 1; + } + + grammar_destroy (grammar_syn_id); + + arbprogram_syn_is_ok = 1; + } + + /* create the grammar object */ + arbprogram_syn_id = grammar_load_from_text ((byte *) arb_grammar_text); + if (arbprogram_syn_id == 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, + "Error loading grammer rule set"); + return 1; + } + + /* Set program_target register value */ + if (set_reg8 (ctx, arbprogram_syn_id, (byte *) "program_target", + program->Base.Target == GL_FRAGMENT_PROGRAM_ARB ? 0x10 : 0x20)) { + grammar_destroy (arbprogram_syn_id); + return 1; + } + + /* Enable all active extensions */ + if (enable_ext (ctx, arbprogram_syn_id, + (byte *) "vertex_blend", (byte *) "GL_ARB_vertex_blend") || + enable_ext (ctx, arbprogram_syn_id, + (byte *) "vertex_blend", (byte *) "GL_EXT_vertex_weighting") || + enable_ext (ctx, arbprogram_syn_id, + (byte *) "matrix_palette", (byte *) "GL_ARB_matrix_palette") || + enable_ext (ctx, arbprogram_syn_id, + (byte *) "point_parameters", (byte *) "GL_ARB_point_parameters") || + enable_ext (ctx, arbprogram_syn_id, + (byte *) "point_parameters", (byte *) "GL_EXT_point_parameters") || + enable_ext (ctx, arbprogram_syn_id, + (byte *) "secondary_color", (byte *) "GL_EXT_secondary_color") || + enable_ext (ctx, arbprogram_syn_id, + (byte *) "fog_coord", (byte *) "GL_EXT_fog_coord") || + enable_ext (ctx, arbprogram_syn_id, + (byte *) "texture_rectangle", (byte *) "GL_EXT_texture_rectangle") || + enable_ext (ctx, arbprogram_syn_id, + (byte *) "texture_rectangle", (byte *) "GL_NV_texture_rectangle") || + enable_ext (ctx, arbprogram_syn_id, + (byte *) "fragment_program_shadow", (byte *) "GL_ARB_fragment_program_shadow")) { + grammar_destroy (arbprogram_syn_id); + return 1; + } + + /* check for NULL character occurences */ + { + int i; + for (i = 0; i < len; i++) + if (str[i] == '\0') { + _mesa_set_program_error (ctx, i, "invalid character"); + _mesa_error (ctx, GL_INVALID_OPERATION, "Lexical Error"); + + grammar_destroy (arbprogram_syn_id); + return 1; + } + } + + /* copy the program string to a null-terminated string */ + /* XXX should I check for NULL from malloc()? */ + strz = _mesa_malloc (len + 1); + _mesa_memcpy (strz, str, len); + strz[len] = '\0'; + +#if DEBUG_PARSING + printf ("Checking Grammar!\n"); +#endif + err = grammar_check (arbprogram_syn_id, strz, &parsed, &parsed_len); + + /* Syntax parse error */ + if (err == 0) { + _mesa_free (strz); + 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"); + + grammar_destroy (arbprogram_syn_id); + return 1; + } + +#if DEBUG_PARSING + printf ("Destroying grammer dict [parse retval: %d]\n", err); +#endif + grammar_destroy (arbprogram_syn_id); + + /* Initialize the arb_program struct */ + program->Base.String = strz; + 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); +#if DEBUG_PARSING + printf ("_mesa_parse_arb_program() done\n"); +#endif + return err; +} |