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11 * The above copyright notice and this permission notice (including the next
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15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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21 * DEALINGS IN THE SOFTWARE.
25 #include "main/config.h"
28 struct __GLcontextRec
;
29 typedef struct __GLcontextRec GLcontext
;
42 struct asm_symbol
*next
; /**< List linkage for freeing. */
45 unsigned attrib_binding
;
46 unsigned output_binding
; /**< Output / result register number. */
49 * One of PROGRAM_STATE_VAR, PROGRAM_LOCAL_PARAM, or PROGRAM_ENV_PARAM.
51 unsigned param_binding_type
;
54 * Offset into the program_parameter_list where the tokens representing our
55 * bound state (or constants) start.
57 unsigned param_binding_begin
;
59 /* This is how many entries in the the program_parameter_list we take up
60 * with our state tokens or constants. Note that this is _not_ the same as
61 * the number of param registers we eventually use.
63 unsigned param_binding_length
;
66 * Index of the temp register assigned to this variable.
68 unsigned temp_binding
;
71 * Flag whether or not a PARAM is an array
73 unsigned param_is_array
:1;
77 * Flag whether or not a PARAM array is accessed indirectly
79 unsigned param_accessed_indirectly
:1;
83 * \brief Is first pass of parameter layout done with this variable?
85 * The parameter layout routine operates in two passes. This flag tracks
86 * whether or not the first pass has handled this variable.
88 * \sa _mesa_layout_parameters
90 unsigned pass1_done
:1;
100 struct asm_swizzle_mask
{
106 struct asm_src_register
{
107 struct prog_src_register Base
;
110 * Symbol associated with indirect access to parameter arrays.
112 * If \c Base::RelAddr is 1, this will point to the symbol for the parameter
113 * that is being dereferenced. Further, \c Base::Index will be the offset
114 * from the address register being used.
116 struct asm_symbol
*Symbol
;
120 struct asm_instruction
{
121 struct prog_instruction Base
;
122 struct asm_instruction
*next
;
123 struct asm_src_register SrcReg
[3];
127 struct asm_parser_state
{
129 struct gl_program
*prog
;
132 * Per-program target limits
134 struct gl_program_constants
*limits
;
136 struct _mesa_symbol_table
*st
;
139 * Linked list of symbols
141 * This list is \b only used when cleaning up compiler state and freeing
144 struct asm_symbol
*sym
;
147 * State for the lexer.
152 * Linked list of instructions generated during parsing.
155 struct asm_instruction
*inst_head
;
156 struct asm_instruction
*inst_tail
;
161 * Selected limits copied from gl_constants
163 * These are limits from the GL context, but various bits in the program
164 * must be validated against these values.
167 unsigned MaxTextureCoordUnits
;
168 unsigned MaxTextureImageUnits
;
169 unsigned MaxTextureUnits
;
170 unsigned MaxClipPlanes
;
172 unsigned MaxProgramMatrices
;
176 * Value to use in state vector accessors for environment and local
179 unsigned state_param_enum
;
183 * Input attributes bound to specific names
185 * This is only needed so that errors can be properly produced when
186 * multiple ATTRIB statements bind illegal combinations of vertex
189 unsigned InputsBound
;
198 unsigned PositionInvariant
:1;
200 unsigned PrecisionHint
:2;
201 unsigned DrawBuffers
:1;
205 unsigned NV_fragment
:1;
213 #define OPTION_NONE 0
214 #define OPTION_FOG_EXP 1
215 #define OPTION_FOG_EXP2 2
216 #define OPTION_FOG_LINEAR 3
217 #define OPTION_NICEST 1
218 #define OPTION_FASTEST 2
220 typedef struct YYLTYPE
{
228 #define YYLTYPE_IS_DECLARED 1
229 #define YYLTYPE_IS_TRIVIAL 1
232 extern GLboolean
_mesa_parse_arb_program(GLcontext
*ctx
, GLenum target
,
233 const GLubyte
*str
, GLsizei len
, struct asm_parser_state
*state
);
237 /* From program_lexer.l. */
238 extern void _mesa_program_lexer_dtor(void *scanner
);
240 extern void _mesa_program_lexer_ctor(void **scanner
,
241 struct asm_parser_state
*state
, const char *string
, size_t len
);
245 *\name From program_parse_extra.c
250 * Parses and processes an option string to an ARB vertex program
253 * Non-zero on success, zero on failure.
255 extern int _mesa_ARBvp_parse_option(struct asm_parser_state
*state
,
259 * Parses and processes an option string to an ARB fragment program
262 * Non-zero on success, zero on failure.
264 extern int _mesa_ARBfp_parse_option(struct asm_parser_state
*state
,
268 * Parses and processes instruction suffixes
270 * Instruction suffixes, such as \c _SAT, are processed. The relevant bits
271 * are set in \c inst. If suffixes are encountered that are either not known
272 * or not supported by the modes and options set in \c state, zero will be
276 * Non-zero on success, zero on failure.
278 extern int _mesa_parse_instruction_suffix(const struct asm_parser_state
*state
,
279 const char *suffix
, struct prog_instruction
*inst
);
282 * Parses a condition code name
284 * The condition code names (e.g., \c LT, \c GT, \c NE) were added to assembly
285 * shaders with the \c GL_NV_fragment_program_option extension. This function
286 * converts a string representation into one of the \c COND_ macros.
289 * One of the \c COND_ macros defined in prog_instruction.h on success or zero
292 extern int _mesa_parse_cc(const char *s
);