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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
;
60 * Constants put into the parameter list may be swizzled. This
61 * field contain's the symbol's swizzle. (SWIZZLE_X/Y/Z/W)
63 unsigned param_binding_swizzle
;
65 /* This is how many entries in the program_parameter_list we take up
66 * with our state tokens or constants. Note that this is _not_ the same as
67 * the number of param registers we eventually use.
69 unsigned param_binding_length
;
72 * Index of the temp register assigned to this variable.
74 unsigned temp_binding
;
77 * Flag whether or not a PARAM is an array
79 unsigned param_is_array
:1;
83 * Flag whether or not a PARAM array is accessed indirectly
85 unsigned param_accessed_indirectly
:1;
89 * \brief Is first pass of parameter layout done with this variable?
91 * The parameter layout routine operates in two passes. This flag tracks
92 * whether or not the first pass has handled this variable.
94 * \sa _mesa_layout_parameters
96 unsigned pass1_done
:1;
106 struct asm_swizzle_mask
{
112 struct asm_src_register
{
113 struct prog_src_register Base
;
116 * Symbol associated with indirect access to parameter arrays.
118 * If \c Base::RelAddr is 1, this will point to the symbol for the parameter
119 * that is being dereferenced. Further, \c Base::Index will be the offset
120 * from the address register being used.
122 struct asm_symbol
*Symbol
;
126 struct asm_instruction
{
127 struct prog_instruction Base
;
128 struct asm_instruction
*next
;
129 struct asm_src_register SrcReg
[3];
133 struct asm_parser_state
{
135 struct gl_program
*prog
;
138 * Per-program target limits
140 struct gl_program_constants
*limits
;
142 struct _mesa_symbol_table
*st
;
145 * Linked list of symbols
147 * This list is \b only used when cleaning up compiler state and freeing
150 struct asm_symbol
*sym
;
153 * State for the lexer.
158 * Linked list of instructions generated during parsing.
161 struct asm_instruction
*inst_head
;
162 struct asm_instruction
*inst_tail
;
167 * Selected limits copied from gl_constants
169 * These are limits from the GL context, but various bits in the program
170 * must be validated against these values.
173 unsigned MaxTextureCoordUnits
;
174 unsigned MaxTextureImageUnits
;
175 unsigned MaxTextureUnits
;
176 unsigned MaxClipPlanes
;
178 unsigned MaxProgramMatrices
;
182 * Value to use in state vector accessors for environment and local
185 unsigned state_param_enum
;
189 * Input attributes bound to specific names
191 * This is only needed so that errors can be properly produced when
192 * multiple ATTRIB statements bind illegal combinations of vertex
195 unsigned InputsBound
;
204 unsigned PositionInvariant
:1;
206 unsigned PrecisionHint
:2;
207 unsigned DrawBuffers
:1;
211 unsigned NV_fragment
:1;
212 unsigned OriginUpperLeft
:1;
213 unsigned PixelCenterInteger
:1;
221 #define OPTION_NONE 0
222 #define OPTION_FOG_EXP 1
223 #define OPTION_FOG_EXP2 2
224 #define OPTION_FOG_LINEAR 3
225 #define OPTION_NICEST 1
226 #define OPTION_FASTEST 2
228 typedef struct YYLTYPE
{
236 #define YYLTYPE_IS_DECLARED 1
237 #define YYLTYPE_IS_TRIVIAL 1
240 extern GLboolean
_mesa_parse_arb_program(GLcontext
*ctx
, GLenum target
,
241 const GLubyte
*str
, GLsizei len
, struct asm_parser_state
*state
);
245 /* From program_lexer.l. */
246 extern void _mesa_program_lexer_dtor(void *scanner
);
248 extern void _mesa_program_lexer_ctor(void **scanner
,
249 struct asm_parser_state
*state
, const char *string
, size_t len
);
253 *\name From program_parse_extra.c
258 * Parses and processes an option string to an ARB vertex program
261 * Non-zero on success, zero on failure.
263 extern int _mesa_ARBvp_parse_option(struct asm_parser_state
*state
,
267 * Parses and processes an option string to an ARB fragment program
270 * Non-zero on success, zero on failure.
272 extern int _mesa_ARBfp_parse_option(struct asm_parser_state
*state
,
276 * Parses and processes instruction suffixes
278 * Instruction suffixes, such as \c _SAT, are processed. The relevant bits
279 * are set in \c inst. If suffixes are encountered that are either not known
280 * or not supported by the modes and options set in \c state, zero will be
284 * Non-zero on success, zero on failure.
286 extern int _mesa_parse_instruction_suffix(const struct asm_parser_state
*state
,
287 const char *suffix
, struct prog_instruction
*inst
);
290 * Parses a condition code name
292 * The condition code names (e.g., \c LT, \c GT, \c NE) were added to assembly
293 * shaders with the \c GL_NV_fragment_program_option extension. This function
294 * converts a string representation into one of the \c COND_ macros.
297 * One of the \c COND_ macros defined in prog_instruction.h on success or zero
300 extern int _mesa_parse_cc(const char *s
);