1 /**************************************************************************
3 * Copyright 2007-2008 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
34 #include "pipe/p_compiler.h"
35 #include "pipe/p_shader_tokens.h"
36 #include "pipe/p_state.h"
37 #include "tgsi/tgsi_ureg.h"
38 #include "st_mesa_to_tgsi.h"
39 #include "shader/prog_instruction.h"
40 #include "shader/prog_parameter.h"
41 #include "shader/prog_print.h"
42 #include "util/u_debug.h"
43 #include "util/u_math.h"
44 #include "util/u_memory.h"
47 unsigned branch_target
;
53 * Intermediate state used during shader translation.
56 struct ureg_program
*ureg
;
58 struct ureg_dst temps
[MAX_PROGRAM_TEMPS
];
59 struct ureg_src
*constants
;
60 struct ureg_dst outputs
[PIPE_MAX_SHADER_OUTPUTS
];
61 struct ureg_src inputs
[PIPE_MAX_SHADER_INPUTS
];
62 struct ureg_dst address
[1];
63 struct ureg_src samplers
[PIPE_MAX_SAMPLERS
];
65 const GLuint
*inputMapping
;
66 const GLuint
*outputMapping
;
68 /* For every instruction that contains a label (eg CALL), keep
69 * details so that we can go back afterwards and emit the correct
70 * tgsi instruction number for each label.
74 unsigned labels_count
;
76 /* Keep a record of the tgsi instruction number that each mesa
77 * instruction starts at, will be used to fix up labels after
84 unsigned procType
; /**< TGSI_PROCESSOR_VERTEX/FRAGMENT */
90 static unsigned *get_label( struct st_translate
*t
,
91 unsigned branch_target
)
95 if (t
->labels_count
+ 1 >= t
->labels_size
) {
96 unsigned old_size
= t
->labels_size
;
97 t
->labels_size
= 1 << (util_logbase2(t
->labels_size
) + 1);
98 t
->labels
= REALLOC( t
->labels
,
99 old_size
* sizeof t
->labels
[0],
100 t
->labels_size
* sizeof t
->labels
[0] );
101 if (t
->labels
== NULL
) {
102 static unsigned dummy
;
108 i
= t
->labels_count
++;
109 t
->labels
[i
].branch_target
= branch_target
;
110 return &t
->labels
[i
].token
;
114 static void set_insn_start( struct st_translate
*t
,
117 if (t
->insn_count
+ 1 >= t
->insn_size
) {
118 unsigned old_size
= t
->insn_size
;
119 t
->insn_size
= 1 << (util_logbase2(t
->insn_size
) + 1);
120 t
->insn
= REALLOC( t
->insn
,
121 old_size
* sizeof t
->insn
[0],
122 t
->insn_size
* sizeof t
->insn
[0] );
123 if (t
->insn
== NULL
) {
129 t
->insn
[t
->insn_count
++] = start
;
134 * Map mesa register file to TGSI register file.
136 static struct ureg_dst
137 dst_register( struct st_translate
*t
,
138 gl_register_file file
,
142 case PROGRAM_UNDEFINED
:
143 return ureg_dst_undef();
145 case PROGRAM_TEMPORARY
:
146 if (ureg_dst_is_undef(t
->temps
[index
]))
147 t
->temps
[index
] = ureg_DECL_temporary( t
->ureg
);
149 return t
->temps
[index
];
152 return t
->outputs
[t
->outputMapping
[index
]];
154 case PROGRAM_ADDRESS
:
155 return t
->address
[index
];
159 return ureg_dst_undef();
164 static struct ureg_src
165 src_register( struct st_translate
*t
,
166 gl_register_file file
,
170 case PROGRAM_UNDEFINED
:
171 return ureg_src_undef();
173 case PROGRAM_TEMPORARY
:
175 if (ureg_dst_is_undef(t
->temps
[index
]))
176 t
->temps
[index
] = ureg_DECL_temporary( t
->ureg
);
177 return ureg_src(t
->temps
[index
]);
179 case PROGRAM_STATE_VAR
:
180 case PROGRAM_NAMED_PARAM
:
181 case PROGRAM_ENV_PARAM
:
182 case PROGRAM_LOCAL_PARAM
:
183 case PROGRAM_UNIFORM
:
185 return t
->constants
[index
];
186 case PROGRAM_CONSTANT
: /* ie, immediate */
188 return ureg_DECL_constant( t
->ureg
, 0 );
190 return t
->constants
[index
];
193 return t
->inputs
[t
->inputMapping
[index
]];
196 return ureg_src(t
->outputs
[t
->outputMapping
[index
]]); /* not needed? */
198 case PROGRAM_ADDRESS
:
199 return ureg_src(t
->address
[index
]);
203 return ureg_src_undef();
209 * Map mesa texture target to TGSI texture target.
212 translate_texture_target( GLuint textarget
,
216 switch( textarget
) {
217 case TEXTURE_1D_INDEX
: return TGSI_TEXTURE_SHADOW1D
;
218 case TEXTURE_2D_INDEX
: return TGSI_TEXTURE_SHADOW2D
;
219 case TEXTURE_RECT_INDEX
: return TGSI_TEXTURE_SHADOWRECT
;
224 switch( textarget
) {
225 case TEXTURE_1D_INDEX
: return TGSI_TEXTURE_1D
;
226 case TEXTURE_2D_INDEX
: return TGSI_TEXTURE_2D
;
227 case TEXTURE_3D_INDEX
: return TGSI_TEXTURE_3D
;
228 case TEXTURE_CUBE_INDEX
: return TGSI_TEXTURE_CUBE
;
229 case TEXTURE_RECT_INDEX
: return TGSI_TEXTURE_RECT
;
232 return TGSI_TEXTURE_1D
;
237 static struct ureg_dst
238 translate_dst( struct st_translate
*t
,
239 const struct prog_dst_register
*DstReg
,
242 struct ureg_dst dst
= dst_register( t
,
246 dst
= ureg_writemask( dst
,
250 dst
= ureg_saturate( dst
);
253 dst
= ureg_dst_indirect( dst
, ureg_src(t
->address
[0]) );
259 static struct ureg_src
260 translate_src( struct st_translate
*t
,
261 const struct prog_src_register
*SrcReg
)
263 struct ureg_src src
= src_register( t
, SrcReg
->File
, SrcReg
->Index
);
265 src
= ureg_swizzle( src
,
266 GET_SWZ( SrcReg
->Swizzle
, 0 ) & 0x3,
267 GET_SWZ( SrcReg
->Swizzle
, 1 ) & 0x3,
268 GET_SWZ( SrcReg
->Swizzle
, 2 ) & 0x3,
269 GET_SWZ( SrcReg
->Swizzle
, 3 ) & 0x3);
271 if (SrcReg
->Negate
== NEGATE_XYZW
)
272 src
= ureg_negate(src
);
277 if (SrcReg
->RelAddr
) {
278 src
= ureg_src_indirect( src
, ureg_src(t
->address
[0]));
279 /* If SrcReg->Index was negative, it was set to zero in
280 * src_register(). Reassign it now.
282 src
.Index
= SrcReg
->Index
;
289 static struct ureg_src
swizzle_4v( struct ureg_src src
,
290 const unsigned *swz
)
292 return ureg_swizzle( src
, swz
[0], swz
[1], swz
[2], swz
[3] );
297 * Translate a SWZ instruction into a MOV, MUL or MAD instruction. EG:
303 * MAD dst {1,-1,0,0}, src.xyxx, {0,0,1,0}
305 static void emit_swz( struct st_translate
*t
,
307 const struct prog_src_register
*SrcReg
)
309 struct ureg_program
*ureg
= t
->ureg
;
310 struct ureg_src src
= src_register( t
, SrcReg
->File
, SrcReg
->Index
);
312 unsigned negate_mask
= SrcReg
->Negate
;
314 unsigned one_mask
= ((GET_SWZ(SrcReg
->Swizzle
, 0) == SWIZZLE_ONE
) << 0 |
315 (GET_SWZ(SrcReg
->Swizzle
, 1) == SWIZZLE_ONE
) << 1 |
316 (GET_SWZ(SrcReg
->Swizzle
, 2) == SWIZZLE_ONE
) << 2 |
317 (GET_SWZ(SrcReg
->Swizzle
, 3) == SWIZZLE_ONE
) << 3);
319 unsigned zero_mask
= ((GET_SWZ(SrcReg
->Swizzle
, 0) == SWIZZLE_ZERO
) << 0 |
320 (GET_SWZ(SrcReg
->Swizzle
, 1) == SWIZZLE_ZERO
) << 1 |
321 (GET_SWZ(SrcReg
->Swizzle
, 2) == SWIZZLE_ZERO
) << 2 |
322 (GET_SWZ(SrcReg
->Swizzle
, 3) == SWIZZLE_ZERO
) << 3);
324 unsigned negative_one_mask
= one_mask
& negate_mask
;
325 unsigned positive_one_mask
= one_mask
& ~negate_mask
;
329 unsigned mul_swizzle
[4] = {0,0,0,0};
330 unsigned add_swizzle
[4] = {0,0,0,0};
331 unsigned src_swizzle
[4] = {0,0,0,0};
332 boolean need_add
= FALSE
;
333 boolean need_mul
= FALSE
;
335 if (dst
.WriteMask
== 0)
338 /* Is this just a MOV?
340 if (zero_mask
== 0 &&
342 (negate_mask
== 0 || negate_mask
== TGSI_WRITEMASK_XYZW
))
344 ureg_MOV( ureg
, dst
, translate_src( t
, SrcReg
));
350 #define IMM_NEG_ONE 2
352 imm
= ureg_imm3f( ureg
, 0, 1, -1 );
354 for (i
= 0; i
< 4; i
++) {
355 unsigned bit
= 1 << i
;
357 if (dst
.WriteMask
& bit
) {
358 if (positive_one_mask
& bit
) {
359 mul_swizzle
[i
] = IMM_ZERO
;
360 add_swizzle
[i
] = IMM_ONE
;
363 else if (negative_one_mask
& bit
) {
364 mul_swizzle
[i
] = IMM_ZERO
;
365 add_swizzle
[i
] = IMM_NEG_ONE
;
368 else if (zero_mask
& bit
) {
369 mul_swizzle
[i
] = IMM_ZERO
;
370 add_swizzle
[i
] = IMM_ZERO
;
374 add_swizzle
[i
] = IMM_ZERO
;
375 src_swizzle
[i
] = GET_SWZ(SrcReg
->Swizzle
, i
);
377 if (negate_mask
& bit
) {
378 mul_swizzle
[i
] = IMM_NEG_ONE
;
381 mul_swizzle
[i
] = IMM_ONE
;
387 if (need_mul
&& need_add
) {
390 swizzle_4v( src
, src_swizzle
),
391 swizzle_4v( imm
, mul_swizzle
),
392 swizzle_4v( imm
, add_swizzle
) );
397 swizzle_4v( src
, src_swizzle
),
398 swizzle_4v( imm
, mul_swizzle
) );
403 swizzle_4v( imm
, add_swizzle
) );
416 * Negate the value of DDY to match GL semantics where (0,0) is the
417 * lower-left corner of the window.
418 * Note that the GL_ARB_fragment_coord_conventions extension will
419 * effect this someday.
421 static void emit_ddy( struct st_translate
*t
,
423 const struct prog_src_register
*SrcReg
)
425 struct ureg_program
*ureg
= t
->ureg
;
426 struct ureg_src src
= translate_src( t
, SrcReg
);
427 src
= ureg_negate( src
);
428 ureg_DDY( ureg
, dst
, src
);
434 translate_opcode( unsigned op
)
438 return TGSI_OPCODE_ARL
;
440 return TGSI_OPCODE_ABS
;
442 return TGSI_OPCODE_ADD
;
444 return TGSI_OPCODE_BGNLOOP
;
446 return TGSI_OPCODE_BGNSUB
;
448 return TGSI_OPCODE_BRA
;
450 return TGSI_OPCODE_BRK
;
452 return TGSI_OPCODE_CAL
;
454 return TGSI_OPCODE_CMP
;
456 return TGSI_OPCODE_CONT
;
458 return TGSI_OPCODE_COS
;
460 return TGSI_OPCODE_DDX
;
462 return TGSI_OPCODE_DDY
;
464 return TGSI_OPCODE_DP2
;
466 return TGSI_OPCODE_DP2A
;
468 return TGSI_OPCODE_DP3
;
470 return TGSI_OPCODE_DP4
;
472 return TGSI_OPCODE_DPH
;
474 return TGSI_OPCODE_DST
;
476 return TGSI_OPCODE_ELSE
;
478 return TGSI_OPCODE_ENDIF
;
480 return TGSI_OPCODE_ENDLOOP
;
482 return TGSI_OPCODE_ENDSUB
;
484 return TGSI_OPCODE_EX2
;
486 return TGSI_OPCODE_EXP
;
488 return TGSI_OPCODE_FLR
;
490 return TGSI_OPCODE_FRC
;
492 return TGSI_OPCODE_IF
;
494 return TGSI_OPCODE_TRUNC
;
496 return TGSI_OPCODE_KIL
;
498 return TGSI_OPCODE_KILP
;
500 return TGSI_OPCODE_LG2
;
502 return TGSI_OPCODE_LOG
;
504 return TGSI_OPCODE_LIT
;
506 return TGSI_OPCODE_LRP
;
508 return TGSI_OPCODE_MAD
;
510 return TGSI_OPCODE_MAX
;
512 return TGSI_OPCODE_MIN
;
514 return TGSI_OPCODE_MOV
;
516 return TGSI_OPCODE_MUL
;
518 return TGSI_OPCODE_NOP
;
520 return TGSI_OPCODE_NRM
;
522 return TGSI_OPCODE_NRM4
;
524 return TGSI_OPCODE_POW
;
526 return TGSI_OPCODE_RCP
;
528 return TGSI_OPCODE_RET
;
530 return TGSI_OPCODE_RSQ
;
532 return TGSI_OPCODE_SCS
;
534 return TGSI_OPCODE_SEQ
;
536 return TGSI_OPCODE_SGE
;
538 return TGSI_OPCODE_SGT
;
540 return TGSI_OPCODE_SIN
;
542 return TGSI_OPCODE_SLE
;
544 return TGSI_OPCODE_SLT
;
546 return TGSI_OPCODE_SNE
;
548 return TGSI_OPCODE_SSG
;
550 return TGSI_OPCODE_SUB
;
552 return TGSI_OPCODE_TEX
;
554 return TGSI_OPCODE_TXB
;
556 return TGSI_OPCODE_TXD
;
558 return TGSI_OPCODE_TXL
;
560 return TGSI_OPCODE_TXP
;
562 return TGSI_OPCODE_XPD
;
564 return TGSI_OPCODE_END
;
567 return TGSI_OPCODE_NOP
;
574 struct st_translate
*t
,
575 const struct prog_instruction
*inst
)
577 struct ureg_program
*ureg
= t
->ureg
;
579 struct ureg_dst dst
[1];
580 struct ureg_src src
[4];
584 num_dst
= _mesa_num_inst_dst_regs( inst
->Opcode
);
585 num_src
= _mesa_num_inst_src_regs( inst
->Opcode
);
588 dst
[0] = translate_dst( t
,
590 inst
->SaturateMode
);
592 for (i
= 0; i
< num_src
; i
++)
593 src
[i
] = translate_src( t
, &inst
->SrcReg
[i
] );
595 switch( inst
->Opcode
) {
597 emit_swz( t
, dst
[0], &inst
->SrcReg
[0] );
605 debug_assert(num_dst
== 0);
606 ureg_label_insn( ureg
,
607 translate_opcode( inst
->Opcode
),
609 get_label( t
, inst
->BranchTarget
));
617 src
[num_src
++] = t
->samplers
[inst
->TexSrcUnit
];
619 translate_opcode( inst
->Opcode
),
621 translate_texture_target( inst
->TexSrcTarget
,
627 dst
[0] = ureg_writemask(dst
[0], TGSI_WRITEMASK_XY
);
629 translate_opcode( inst
->Opcode
),
635 dst
[0] = ureg_writemask(dst
[0], TGSI_WRITEMASK_XYZ
);
637 translate_opcode( inst
->Opcode
),
646 /* At some point, a motivated person could add a better
647 * implementation of noise. Currently not even the nvidia
648 * binary drivers do anything more than this. In any case, the
649 * place to do this is in the GL state tracker, not the poor
652 ureg_MOV( ureg
, dst
[0], ureg_imm1f(ureg
, 0.5) );
656 emit_ddy( t
, dst
[0], &inst
->SrcReg
[0] );
661 translate_opcode( inst
->Opcode
),
670 * Emit the TGSI instructions for inverting the WPOS y coordinate.
673 emit_inverted_wpos( struct st_translate
*t
,
674 const struct gl_program
*program
)
676 struct ureg_program
*ureg
= t
->ureg
;
678 /* Fragment program uses fragment position input.
679 * Need to replace instances of INPUT[WPOS] with temp T
680 * where T = INPUT[WPOS] by y is inverted.
682 static const gl_state_index winSizeState
[STATE_LENGTH
]
683 = { STATE_INTERNAL
, STATE_FB_SIZE
, 0, 0, 0 };
685 /* XXX: note we are modifying the incoming shader here! Need to
686 * do this before emitting the constant decls below, or this
689 unsigned winHeightConst
= _mesa_add_state_reference(program
->Parameters
,
692 struct ureg_src winsize
= ureg_DECL_constant( ureg
, winHeightConst
);
693 struct ureg_dst wpos_temp
= ureg_DECL_temporary( ureg
);
694 struct ureg_src wpos_input
= t
->inputs
[t
->inputMapping
[FRAG_ATTRIB_WPOS
]];
696 /* MOV wpos_temp, input[wpos]
698 ureg_MOV( ureg
, wpos_temp
, wpos_input
);
700 /* SUB wpos_temp.y, winsize_const, wpos_input
703 ureg_writemask(wpos_temp
, TGSI_WRITEMASK_Y
),
707 /* Use wpos_temp as position input from here on:
709 t
->inputs
[t
->inputMapping
[FRAG_ATTRIB_WPOS
]] = ureg_src(wpos_temp
);
714 * OpenGL's fragment gl_FrontFace input is 1 for front-facing, 0 for back.
715 * TGSI uses +1 for front, -1 for back.
716 * This function converts the TGSI value to the GL value. Simply clamping/
717 * saturating the value to [0,1] does the job.
720 emit_face_var( struct st_translate
*t
,
721 const struct gl_program
*program
)
723 struct ureg_program
*ureg
= t
->ureg
;
724 struct ureg_dst face_temp
= ureg_DECL_temporary( ureg
);
725 struct ureg_src face_input
= t
->inputs
[t
->inputMapping
[FRAG_ATTRIB_FACE
]];
727 /* MOV_SAT face_temp, input[face]
729 face_temp
= ureg_saturate( face_temp
);
730 ureg_MOV( ureg
, face_temp
, face_input
);
732 /* Use face_temp as face input from here on:
734 t
->inputs
[t
->inputMapping
[FRAG_ATTRIB_FACE
]] = ureg_src(face_temp
);
739 emit_edgeflags( struct st_translate
*t
,
740 const struct gl_program
*program
)
742 struct ureg_program
*ureg
= t
->ureg
;
743 struct ureg_dst edge_dst
= t
->outputs
[t
->outputMapping
[VERT_RESULT_EDGE
]];
744 struct ureg_src edge_src
= t
->inputs
[t
->inputMapping
[VERT_ATTRIB_EDGEFLAG
]];
746 ureg_MOV( ureg
, edge_dst
, edge_src
);
751 * Translate Mesa program to TGSI format.
752 * \param program the program to translate
753 * \param numInputs number of input registers used
754 * \param inputMapping maps Mesa fragment program inputs to TGSI generic
756 * \param inputSemanticName the TGSI_SEMANTIC flag for each input
757 * \param inputSemanticIndex the semantic index (ex: which texcoord) for
759 * \param interpMode the TGSI_INTERPOLATE_LINEAR/PERSP mode for each input
760 * \param numOutputs number of output registers used
761 * \param outputMapping maps Mesa fragment program outputs to TGSI
763 * \param outputSemanticName the TGSI_SEMANTIC flag for each output
764 * \param outputSemanticIndex the semantic index (ex: which texcoord) for
767 * \return PIPE_OK or PIPE_ERROR_OUT_OF_MEMORY
770 st_translate_mesa_program(
773 struct ureg_program
*ureg
,
774 const struct gl_program
*program
,
776 const GLuint inputMapping
[],
777 const ubyte inputSemanticName
[],
778 const ubyte inputSemanticIndex
[],
779 const GLuint interpMode
[],
781 const GLuint outputMapping
[],
782 const ubyte outputSemanticName
[],
783 const ubyte outputSemanticIndex
[],
784 boolean passthrough_edgeflags
)
786 struct st_translate translate
, *t
;
788 enum pipe_error ret
= PIPE_OK
;
791 memset(t
, 0, sizeof *t
);
793 t
->procType
= procType
;
794 t
->inputMapping
= inputMapping
;
795 t
->outputMapping
= outputMapping
;
798 /*_mesa_print_program(program);*/
801 * Declare input attributes.
803 if (procType
== TGSI_PROCESSOR_FRAGMENT
) {
804 for (i
= 0; i
< numInputs
; i
++) {
805 t
->inputs
[i
] = ureg_DECL_fs_input(ureg
,
806 inputSemanticName
[i
],
807 inputSemanticIndex
[i
],
811 if (program
->InputsRead
& FRAG_BIT_WPOS
) {
812 /* Must do this after setting up t->inputs, and before
813 * emitting constant references, below:
815 emit_inverted_wpos( t
, program
);
818 if (program
->InputsRead
& FRAG_BIT_FACE
) {
819 emit_face_var( t
, program
);
823 * Declare output attributes.
825 for (i
= 0; i
< numOutputs
; i
++) {
826 switch (outputSemanticName
[i
]) {
827 case TGSI_SEMANTIC_POSITION
:
828 t
->outputs
[i
] = ureg_DECL_output( ureg
,
829 TGSI_SEMANTIC_POSITION
, /* Z / Depth */
830 outputSemanticIndex
[i
] );
832 t
->outputs
[i
] = ureg_writemask( t
->outputs
[i
],
835 case TGSI_SEMANTIC_COLOR
:
836 t
->outputs
[i
] = ureg_DECL_output( ureg
,
838 outputSemanticIndex
[i
] );
847 for (i
= 0; i
< numInputs
; i
++) {
848 t
->inputs
[i
] = ureg_DECL_vs_input(ureg
, i
);
851 for (i
= 0; i
< numOutputs
; i
++) {
852 t
->outputs
[i
] = ureg_DECL_output( ureg
,
853 outputSemanticName
[i
],
854 outputSemanticIndex
[i
] );
856 if (passthrough_edgeflags
)
857 emit_edgeflags( t
, program
);
860 /* Declare address register.
862 if (program
->NumAddressRegs
> 0) {
863 debug_assert( program
->NumAddressRegs
== 1 );
864 t
->address
[0] = ureg_DECL_address( ureg
);
868 /* Emit constants and immediates. Mesa uses a single index space
869 * for these, so we put all the translated regs in t->constants.
871 if (program
->Parameters
) {
873 t
->constants
= CALLOC( program
->Parameters
->NumParameters
,
874 sizeof t
->constants
[0] );
875 if (t
->constants
== NULL
) {
876 ret
= PIPE_ERROR_OUT_OF_MEMORY
;
880 for (i
= 0; i
< program
->Parameters
->NumParameters
; i
++) {
881 switch (program
->Parameters
->Parameters
[i
].Type
) {
882 case PROGRAM_ENV_PARAM
:
883 case PROGRAM_LOCAL_PARAM
:
884 case PROGRAM_STATE_VAR
:
885 case PROGRAM_NAMED_PARAM
:
886 case PROGRAM_UNIFORM
:
887 t
->constants
[i
] = ureg_DECL_constant( ureg
, i
);
890 /* Emit immediates only when there is no address register
891 * in use. FIXME: Be smarter and recognize param arrays:
892 * indirect addressing is only valid within the referenced
895 case PROGRAM_CONSTANT
:
896 if (program
->NumAddressRegs
> 0)
897 t
->constants
[i
] = ureg_DECL_constant( ureg
, i
);
900 ureg_DECL_immediate( ureg
,
901 program
->Parameters
->ParameterValues
[i
],
910 /* texture samplers */
911 for (i
= 0; i
< ctx
->Const
.MaxTextureImageUnits
; i
++) {
912 if (program
->SamplersUsed
& (1 << i
)) {
913 t
->samplers
[i
] = ureg_DECL_sampler( ureg
, i
);
917 /* Emit each instruction in turn:
919 for (i
= 0; i
< program
->NumInstructions
; i
++) {
920 set_insn_start( t
, ureg_get_instruction_number( ureg
));
921 compile_instruction( t
, &program
->Instructions
[i
] );
924 /* Fix up all emitted labels:
926 for (i
= 0; i
< t
->labels_count
; i
++) {
927 ureg_fixup_label( ureg
,
929 t
->insn
[t
->labels
[i
].branch_target
] );
938 debug_printf("%s: translate error flag set\n", __FUNCTION__
);
946 * Tokens cannot be free with _mesa_free otherwise the builtin gallium
947 * malloc debugging will get confused.
950 st_free_tokens(const struct tgsi_token
*tokens
)
952 FREE((void *)tokens
);