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1 #include "pipe/p_context.h"
2 #include "pipe/p_defines.h"
3 #include "pipe/p_state.h"
4 #include "util/u_linkage.h"
5 #include "util/u_debug.h"
6 
7 #include "pipe/p_shader_tokens.h"
8 #include "tgsi/tgsi_parse.h"
9 #include "tgsi/tgsi_dump.h"
10 #include "tgsi/tgsi_util.h"
11 #include "tgsi/tgsi_ureg.h"
12 
13 #include "draw/draw_context.h"
14 
15 #include "nv30-40_3d.xml.h"
16 #include "nv30_context.h"
17 #include "nv30_resource.h"
18 
19 /* TODO (at least...):
20  *  1. Indexed consts  + ARL
21  *  3. NV_vp11, NV_vp2, NV_vp3 features
22  *       - extra arith opcodes
23  *       - branching
24  *       - texture sampling
25  *       - indexed attribs
26  *       - indexed results
27  *  4. bugs
28  */
29 
30 #include "nv30_vertprog.h"
31 #include "nv40_vertprog.h"
32 
33 struct nvfx_loop_entry {
34    unsigned brk_target;
35    unsigned cont_target;
36 };
37 
38 struct nvfx_vpc {
39    struct nv30_context* nv30;
40    struct pipe_shader_state pipe;
41    struct nv30_vertprog *vp;
42    struct tgsi_shader_info* info;
43 
44    struct nv30_vertprog_exec *vpi;
45 
46    unsigned r_temps;
47    unsigned r_temps_discard;
48    struct nvfx_reg r_result[PIPE_MAX_SHADER_OUTPUTS];
49    struct nvfx_reg *r_address;
50    struct nvfx_reg *r_temp;
51    struct nvfx_reg *r_const;
52    struct nvfx_reg r_0_1;
53 
54    struct nvfx_reg *imm;
55    unsigned nr_imm;
56 
57    int hpos_idx;
58    int cvtx_idx;
59 
60    struct util_dynarray label_relocs;
61    struct util_dynarray loop_stack;
62 };
63 
64 static struct nvfx_reg
temp(struct nvfx_vpc * vpc)65 temp(struct nvfx_vpc *vpc)
66 {
67    int idx = ffs(~vpc->r_temps) - 1;
68 
69    if (idx < 0) {
70       NOUVEAU_ERR("out of temps!!\n");
71       assert(0);
72       return nvfx_reg(NVFXSR_TEMP, 0);
73    }
74 
75    vpc->r_temps |= (1 << idx);
76    vpc->r_temps_discard |= (1 << idx);
77    return nvfx_reg(NVFXSR_TEMP, idx);
78 }
79 
80 static inline void
release_temps(struct nvfx_vpc * vpc)81 release_temps(struct nvfx_vpc *vpc)
82 {
83    vpc->r_temps &= ~vpc->r_temps_discard;
84    vpc->r_temps_discard = 0;
85 }
86 
87 static struct nvfx_reg
constant(struct nvfx_vpc * vpc,int pipe,float x,float y,float z,float w)88 constant(struct nvfx_vpc *vpc, int pipe, float x, float y, float z, float w)
89 {
90    struct nv30_vertprog *vp = vpc->vp;
91    struct nv30_vertprog_data *vpd;
92    int idx;
93 
94    if (pipe >= 0) {
95       for (idx = 0; idx < vp->nr_consts; idx++) {
96          if (vp->consts[idx].index == pipe)
97             return nvfx_reg(NVFXSR_CONST, idx);
98       }
99    }
100 
101    idx = vp->nr_consts++;
102    vp->consts = realloc(vp->consts, sizeof(*vpd) * vp->nr_consts);
103    vpd = &vp->consts[idx];
104 
105    vpd->index = pipe;
106    vpd->value[0] = x;
107    vpd->value[1] = y;
108    vpd->value[2] = z;
109    vpd->value[3] = w;
110    return nvfx_reg(NVFXSR_CONST, idx);
111 }
112 
113 #define arith(s,t,o,d,m,s0,s1,s2) \
114    nvfx_insn((s), (NVFX_VP_INST_SLOT_##t << 7) | NVFX_VP_INST_##t##_OP_##o, -1, (d), (m), (s0), (s1), (s2))
115 
116 static void
emit_src(struct nv30_context * nv30,struct nvfx_vpc * vpc,uint32_t * hw,int pos,struct nvfx_src src)117 emit_src(struct nv30_context *nv30, struct nvfx_vpc *vpc, uint32_t *hw,
118          int pos, struct nvfx_src src)
119 {
120    struct nv30_vertprog *vp = vpc->vp;
121    uint32_t sr = 0;
122    struct nvfx_relocation reloc;
123 
124    switch (src.reg.type) {
125    case NVFXSR_TEMP:
126       sr |= (NVFX_VP(SRC_REG_TYPE_TEMP) << NVFX_VP(SRC_REG_TYPE_SHIFT));
127       sr |= (src.reg.index << NVFX_VP(SRC_TEMP_SRC_SHIFT));
128       break;
129    case NVFXSR_INPUT:
130       sr |= (NVFX_VP(SRC_REG_TYPE_INPUT) <<
131              NVFX_VP(SRC_REG_TYPE_SHIFT));
132       vp->ir |= (1 << src.reg.index);
133       hw[1] |= (src.reg.index << NVFX_VP(INST_INPUT_SRC_SHIFT));
134       break;
135    case NVFXSR_CONST:
136       sr |= (NVFX_VP(SRC_REG_TYPE_CONST) <<
137              NVFX_VP(SRC_REG_TYPE_SHIFT));
138       if (src.reg.index < 256 && src.reg.index >= -256) {
139          reloc.location = vp->nr_insns - 1;
140          reloc.target = src.reg.index;
141          util_dynarray_append(&vp->const_relocs, struct nvfx_relocation, reloc);
142       } else {
143          hw[1] |= (src.reg.index << NVFX_VP(INST_CONST_SRC_SHIFT)) &
144                NVFX_VP(INST_CONST_SRC_MASK);
145       }
146       break;
147    case NVFXSR_NONE:
148       sr |= (NVFX_VP(SRC_REG_TYPE_INPUT) <<
149              NVFX_VP(SRC_REG_TYPE_SHIFT));
150       break;
151    default:
152       assert(0);
153    }
154 
155    if (src.negate)
156       sr |= NVFX_VP(SRC_NEGATE);
157 
158    if (src.abs)
159       hw[0] |= (1 << (21 + pos));
160 
161    sr |= ((src.swz[0] << NVFX_VP(SRC_SWZ_X_SHIFT)) |
162           (src.swz[1] << NVFX_VP(SRC_SWZ_Y_SHIFT)) |
163           (src.swz[2] << NVFX_VP(SRC_SWZ_Z_SHIFT)) |
164           (src.swz[3] << NVFX_VP(SRC_SWZ_W_SHIFT)));
165 
166    if(src.indirect) {
167       if(src.reg.type == NVFXSR_CONST)
168          hw[3] |= NVFX_VP(INST_INDEX_CONST);
169       else if(src.reg.type == NVFXSR_INPUT)
170          hw[0] |= NVFX_VP(INST_INDEX_INPUT);
171       else
172          assert(0);
173 
174       if(src.indirect_reg)
175          hw[0] |= NVFX_VP(INST_ADDR_REG_SELECT_1);
176       hw[0] |= src.indirect_swz << NVFX_VP(INST_ADDR_SWZ_SHIFT);
177    }
178 
179    switch (pos) {
180    case 0:
181       hw[1] |= ((sr & NVFX_VP(SRC0_HIGH_MASK)) >>
182            NVFX_VP(SRC0_HIGH_SHIFT)) << NVFX_VP(INST_SRC0H_SHIFT);
183       hw[2] |= (sr & NVFX_VP(SRC0_LOW_MASK)) <<
184            NVFX_VP(INST_SRC0L_SHIFT);
185       break;
186    case 1:
187       hw[2] |= sr << NVFX_VP(INST_SRC1_SHIFT);
188       break;
189    case 2:
190       hw[2] |= ((sr & NVFX_VP(SRC2_HIGH_MASK)) >>
191            NVFX_VP(SRC2_HIGH_SHIFT)) << NVFX_VP(INST_SRC2H_SHIFT);
192       hw[3] |= (sr & NVFX_VP(SRC2_LOW_MASK)) <<
193            NVFX_VP(INST_SRC2L_SHIFT);
194       break;
195    default:
196       assert(0);
197    }
198 }
199 
200 static void
emit_dst(struct nv30_context * nv30,struct nvfx_vpc * vpc,uint32_t * hw,int slot,struct nvfx_reg dst)201 emit_dst(struct nv30_context *nv30, struct nvfx_vpc *vpc, uint32_t *hw,
202          int slot, struct nvfx_reg dst)
203 {
204    struct nv30_vertprog *vp = vpc->vp;
205 
206    switch (dst.type) {
207    case NVFXSR_NONE:
208       if(!nv30->is_nv4x)
209          hw[0] |= NV30_VP_INST_DEST_TEMP_ID_MASK;
210       else {
211          hw[3] |= NV40_VP_INST_DEST_MASK;
212          if (slot == 0)
213             hw[0] |= NV40_VP_INST_VEC_DEST_TEMP_MASK;
214          else
215             hw[3] |= NV40_VP_INST_SCA_DEST_TEMP_MASK;
216       }
217       break;
218    case NVFXSR_TEMP:
219       if(!nv30->is_nv4x)
220          hw[0] |= (dst.index << NV30_VP_INST_DEST_TEMP_ID_SHIFT);
221       else {
222          hw[3] |= NV40_VP_INST_DEST_MASK;
223          if (slot == 0)
224             hw[0] |= (dst.index << NV40_VP_INST_VEC_DEST_TEMP_SHIFT);
225          else
226             hw[3] |= (dst.index << NV40_VP_INST_SCA_DEST_TEMP_SHIFT);
227       }
228       break;
229    case NVFXSR_OUTPUT:
230       /* TODO: this may be wrong because on nv30 COL0 and BFC0 are swapped */
231       if(nv30->is_nv4x) {
232          switch (dst.index) {
233          case NV30_VP_INST_DEST_CLP(0):
234             dst.index = NVFX_VP(INST_DEST_FOGC);
235             vp->or   |= (1 << 6);
236             break;
237          case NV30_VP_INST_DEST_CLP(1):
238             dst.index = NVFX_VP(INST_DEST_FOGC);
239             vp->or   |= (1 << 7);
240             break;
241          case NV30_VP_INST_DEST_CLP(2):
242             dst.index = NVFX_VP(INST_DEST_FOGC);
243             vp->or   |= (1 << 8);
244             break;
245          case NV30_VP_INST_DEST_CLP(3):
246             dst.index = NVFX_VP(INST_DEST_PSZ);
247             vp->or   |= (1 << 9);
248             break;
249          case NV30_VP_INST_DEST_CLP(4):
250             dst.index = NVFX_VP(INST_DEST_PSZ);
251             vp->or   |= (1 << 10);
252             break;
253          case NV30_VP_INST_DEST_CLP(5):
254             dst.index = NVFX_VP(INST_DEST_PSZ);
255             vp->or   |= (1 << 11);
256             break;
257          case NV40_VP_INST_DEST_COL0: vp->or |= (1 << 0); break;
258          case NV40_VP_INST_DEST_COL1: vp->or |= (1 << 1); break;
259          case NV40_VP_INST_DEST_BFC0: vp->or |= (1 << 2); break;
260          case NV40_VP_INST_DEST_BFC1: vp->or |= (1 << 3); break;
261          case NV40_VP_INST_DEST_FOGC: vp->or |= (1 << 4); break;
262          case NV40_VP_INST_DEST_PSZ : vp->or |= (1 << 5); break;
263          }
264       }
265 
266       if(!nv30->is_nv4x) {
267          hw[3] |= (dst.index << NV30_VP_INST_DEST_SHIFT);
268          hw[0] |= NV30_VP_INST_VEC_DEST_TEMP_MASK;
269 
270          /*XXX: no way this is entirely correct, someone needs to
271           *     figure out what exactly it is.
272           */
273          hw[3] |= 0x800;
274       } else {
275          hw[3] |= (dst.index << NV40_VP_INST_DEST_SHIFT);
276          if (slot == 0) {
277             hw[0] |= NV40_VP_INST_VEC_RESULT;
278             hw[0] |= NV40_VP_INST_VEC_DEST_TEMP_MASK;
279          } else {
280             hw[3] |= NV40_VP_INST_SCA_RESULT;
281             hw[3] |= NV40_VP_INST_SCA_DEST_TEMP_MASK;
282          }
283       }
284       break;
285    default:
286       assert(0);
287    }
288 }
289 
290 static void
nvfx_vp_emit(struct nvfx_vpc * vpc,struct nvfx_insn insn)291 nvfx_vp_emit(struct nvfx_vpc *vpc, struct nvfx_insn insn)
292 {
293    struct nv30_context *nv30 = vpc->nv30;
294    struct nv30_vertprog *vp = vpc->vp;
295    unsigned slot = insn.op >> 7;
296    unsigned op = insn.op & 0x7f;
297    uint32_t *hw;
298 
299    vp->insns = realloc(vp->insns, ++vp->nr_insns * sizeof(*vpc->vpi));
300    vpc->vpi = &vp->insns[vp->nr_insns - 1];
301    memset(vpc->vpi, 0, sizeof(*vpc->vpi));
302 
303    hw = vpc->vpi->data;
304 
305    if (insn.cc_test != NVFX_COND_TR)
306       hw[0] |= NVFX_VP(INST_COND_TEST_ENABLE);
307    hw[0] |= (insn.cc_test << NVFX_VP(INST_COND_SHIFT));
308    hw[0] |= ((insn.cc_swz[0] << NVFX_VP(INST_COND_SWZ_X_SHIFT)) |
309              (insn.cc_swz[1] << NVFX_VP(INST_COND_SWZ_Y_SHIFT)) |
310              (insn.cc_swz[2] << NVFX_VP(INST_COND_SWZ_Z_SHIFT)) |
311              (insn.cc_swz[3] << NVFX_VP(INST_COND_SWZ_W_SHIFT)));
312    if(insn.cc_update)
313       hw[0] |= NVFX_VP(INST_COND_UPDATE_ENABLE);
314 
315    if(insn.sat) {
316       assert(nv30->use_nv4x);
317       if(nv30->use_nv4x)
318          hw[0] |= NV40_VP_INST_SATURATE;
319    }
320 
321    if(!nv30->is_nv4x) {
322       if(slot == 0)
323          hw[1] |= (op << NV30_VP_INST_VEC_OPCODE_SHIFT);
324       else {
325          hw[0] |= ((op >> 4) << NV30_VP_INST_SCA_OPCODEH_SHIFT);
326          hw[1] |= ((op & 0xf) << NV30_VP_INST_SCA_OPCODEL_SHIFT);
327       }
328 //      hw[3] |= NVFX_VP(INST_SCA_DEST_TEMP_MASK);
329 //      hw[3] |= (mask << NVFX_VP(INST_VEC_WRITEMASK_SHIFT));
330 
331       if (insn.dst.type == NVFXSR_OUTPUT) {
332          if (slot)
333             hw[3] |= (insn.mask << NV30_VP_INST_SDEST_WRITEMASK_SHIFT);
334          else
335             hw[3] |= (insn.mask << NV30_VP_INST_VDEST_WRITEMASK_SHIFT);
336       } else {
337          if (slot)
338             hw[3] |= (insn.mask << NV30_VP_INST_STEMP_WRITEMASK_SHIFT);
339          else
340             hw[3] |= (insn.mask << NV30_VP_INST_VTEMP_WRITEMASK_SHIFT);
341       }
342     } else {
343       if (slot == 0) {
344          hw[1] |= (op << NV40_VP_INST_VEC_OPCODE_SHIFT);
345          hw[3] |= NV40_VP_INST_SCA_DEST_TEMP_MASK;
346          hw[3] |= (insn.mask << NV40_VP_INST_VEC_WRITEMASK_SHIFT);
347        } else {
348          hw[1] |= (op << NV40_VP_INST_SCA_OPCODE_SHIFT);
349          hw[0] |= NV40_VP_INST_VEC_DEST_TEMP_MASK ;
350          hw[3] |= (insn.mask << NV40_VP_INST_SCA_WRITEMASK_SHIFT);
351       }
352    }
353 
354    emit_dst(nv30, vpc, hw, slot, insn.dst);
355    emit_src(nv30, vpc, hw, 0, insn.src[0]);
356    emit_src(nv30, vpc, hw, 1, insn.src[1]);
357    emit_src(nv30, vpc, hw, 2, insn.src[2]);
358 
359 //   if(insn.src[0].indirect || op == NVFX_VP_INST_VEC_OP_ARL)
360 //      hw[3] |= NV40_VP_INST_SCA_RESULT;
361 }
362 
363 static inline struct nvfx_src
tgsi_src(struct nvfx_vpc * vpc,const struct tgsi_full_src_register * fsrc)364 tgsi_src(struct nvfx_vpc *vpc, const struct tgsi_full_src_register *fsrc) {
365    struct nvfx_src src;
366 
367    switch (fsrc->Register.File) {
368    case TGSI_FILE_INPUT:
369       src.reg = nvfx_reg(NVFXSR_INPUT, fsrc->Register.Index);
370       break;
371    case TGSI_FILE_CONSTANT:
372       if(fsrc->Register.Indirect) {
373          src.reg = vpc->r_const[0];
374          src.reg.index = fsrc->Register.Index;
375       } else {
376          src.reg = vpc->r_const[fsrc->Register.Index];
377       }
378       break;
379    case TGSI_FILE_IMMEDIATE:
380       src.reg = vpc->imm[fsrc->Register.Index];
381       break;
382    case TGSI_FILE_TEMPORARY:
383       src.reg = vpc->r_temp[fsrc->Register.Index];
384       break;
385    default:
386       NOUVEAU_ERR("bad src file\n");
387       src.reg.index = 0;
388       src.reg.type = -1;
389       break;
390    }
391 
392    src.abs = fsrc->Register.Absolute;
393    src.negate = fsrc->Register.Negate;
394    src.swz[0] = fsrc->Register.SwizzleX;
395    src.swz[1] = fsrc->Register.SwizzleY;
396    src.swz[2] = fsrc->Register.SwizzleZ;
397    src.swz[3] = fsrc->Register.SwizzleW;
398    src.indirect = 0;
399    src.indirect_reg = 0;
400    src.indirect_swz = 0;
401 
402    if(fsrc->Register.Indirect) {
403       if(fsrc->Indirect.File == TGSI_FILE_ADDRESS &&
404          (fsrc->Register.File == TGSI_FILE_CONSTANT ||
405           fsrc->Register.File == TGSI_FILE_INPUT)) {
406          src.indirect = 1;
407          src.indirect_reg = fsrc->Indirect.Index;
408          src.indirect_swz = fsrc->Indirect.SwizzleX;
409       } else {
410          src.reg.index = 0;
411          src.reg.type = -1;
412       }
413    }
414 
415    return src;
416 }
417 
418 static INLINE struct nvfx_reg
tgsi_dst(struct nvfx_vpc * vpc,const struct tgsi_full_dst_register * fdst)419 tgsi_dst(struct nvfx_vpc *vpc, const struct tgsi_full_dst_register *fdst) {
420    struct nvfx_reg dst;
421 
422    switch (fdst->Register.File) {
423    case TGSI_FILE_NULL:
424       dst = nvfx_reg(NVFXSR_NONE, 0);
425       break;
426    case TGSI_FILE_OUTPUT:
427       dst = vpc->r_result[fdst->Register.Index];
428       break;
429    case TGSI_FILE_TEMPORARY:
430       dst = vpc->r_temp[fdst->Register.Index];
431       break;
432    case TGSI_FILE_ADDRESS:
433       dst = vpc->r_address[fdst->Register.Index];
434       break;
435    default:
436       NOUVEAU_ERR("bad dst file %i\n", fdst->Register.File);
437       dst.index = 0;
438       dst.type = 0;
439       break;
440    }
441 
442    return dst;
443 }
444 
445 static inline int
tgsi_mask(uint tgsi)446 tgsi_mask(uint tgsi)
447 {
448    int mask = 0;
449 
450    if (tgsi & TGSI_WRITEMASK_X) mask |= NVFX_VP_MASK_X;
451    if (tgsi & TGSI_WRITEMASK_Y) mask |= NVFX_VP_MASK_Y;
452    if (tgsi & TGSI_WRITEMASK_Z) mask |= NVFX_VP_MASK_Z;
453    if (tgsi & TGSI_WRITEMASK_W) mask |= NVFX_VP_MASK_W;
454    return mask;
455 }
456 
457 static boolean
nvfx_vertprog_parse_instruction(struct nv30_context * nv30,struct nvfx_vpc * vpc,unsigned idx,const struct tgsi_full_instruction * finst)458 nvfx_vertprog_parse_instruction(struct nv30_context *nv30, struct nvfx_vpc *vpc,
459             unsigned idx, const struct tgsi_full_instruction *finst)
460 {
461    struct nvfx_src src[3], tmp;
462    struct nvfx_reg dst;
463    struct nvfx_reg final_dst;
464    struct nvfx_src none = nvfx_src(nvfx_reg(NVFXSR_NONE, 0));
465    struct nvfx_insn insn;
466    struct nvfx_relocation reloc;
467    struct nvfx_loop_entry loop;
468    boolean sat = FALSE;
469    int mask;
470    int ai = -1, ci = -1, ii = -1;
471    int i;
472    unsigned sub_depth = 0;
473 
474    for (i = 0; i < finst->Instruction.NumSrcRegs; i++) {
475       const struct tgsi_full_src_register *fsrc;
476 
477       fsrc = &finst->Src[i];
478       if (fsrc->Register.File == TGSI_FILE_TEMPORARY) {
479          src[i] = tgsi_src(vpc, fsrc);
480       }
481    }
482 
483    for (i = 0; i < finst->Instruction.NumSrcRegs; i++) {
484       const struct tgsi_full_src_register *fsrc;
485 
486       fsrc = &finst->Src[i];
487 
488       switch (fsrc->Register.File) {
489       case TGSI_FILE_INPUT:
490          if (ai == -1 || ai == fsrc->Register.Index) {
491             ai = fsrc->Register.Index;
492             src[i] = tgsi_src(vpc, fsrc);
493          } else {
494             src[i] = nvfx_src(temp(vpc));
495             nvfx_vp_emit(vpc, arith(0, VEC, MOV, src[i].reg, NVFX_VP_MASK_ALL,
496                          tgsi_src(vpc, fsrc), none, none));
497          }
498          break;
499       case TGSI_FILE_CONSTANT:
500          if ((ci == -1 && ii == -1) ||
501              ci == fsrc->Register.Index) {
502             ci = fsrc->Register.Index;
503             src[i] = tgsi_src(vpc, fsrc);
504          } else {
505             src[i] = nvfx_src(temp(vpc));
506             nvfx_vp_emit(vpc, arith(0, VEC, MOV, src[i].reg, NVFX_VP_MASK_ALL,
507                          tgsi_src(vpc, fsrc), none, none));
508          }
509          break;
510       case TGSI_FILE_IMMEDIATE:
511          if ((ci == -1 && ii == -1) ||
512              ii == fsrc->Register.Index) {
513             ii = fsrc->Register.Index;
514             src[i] = tgsi_src(vpc, fsrc);
515          } else {
516             src[i] = nvfx_src(temp(vpc));
517             nvfx_vp_emit(vpc, arith(0, VEC, MOV, src[i].reg, NVFX_VP_MASK_ALL,
518                          tgsi_src(vpc, fsrc), none, none));
519          }
520          break;
521       case TGSI_FILE_TEMPORARY:
522          /* handled above */
523          break;
524       default:
525          NOUVEAU_ERR("bad src file\n");
526          return FALSE;
527       }
528    }
529 
530    for (i = 0; i < finst->Instruction.NumSrcRegs; i++) {
531       if(src[i].reg.type < 0)
532          return FALSE;
533    }
534 
535    if(finst->Dst[0].Register.File == TGSI_FILE_ADDRESS &&
536       finst->Instruction.Opcode != TGSI_OPCODE_ARL)
537       return FALSE;
538 
539    final_dst = dst  = tgsi_dst(vpc, &finst->Dst[0]);
540    mask = tgsi_mask(finst->Dst[0].Register.WriteMask);
541    if(finst->Instruction.Saturate == TGSI_SAT_ZERO_ONE) {
542       assert(finst->Instruction.Opcode != TGSI_OPCODE_ARL);
543       if (nv30->use_nv4x)
544          sat = TRUE;
545       else
546       if(dst.type != NVFXSR_TEMP)
547          dst = temp(vpc);
548    }
549 
550    switch (finst->Instruction.Opcode) {
551    case TGSI_OPCODE_ABS:
552       nvfx_vp_emit(vpc, arith(sat, VEC, MOV, dst, mask, abs(src[0]), none, none));
553       break;
554    case TGSI_OPCODE_ADD:
555       nvfx_vp_emit(vpc, arith(sat, VEC, ADD, dst, mask, src[0], none, src[1]));
556       break;
557    case TGSI_OPCODE_ARL:
558       nvfx_vp_emit(vpc, arith(0, VEC, ARL, dst, mask, src[0], none, none));
559       break;
560    case TGSI_OPCODE_CEIL:
561       tmp = nvfx_src(temp(vpc));
562       nvfx_vp_emit(vpc, arith(0, VEC, FLR, tmp.reg, mask, neg(src[0]), none, none));
563       nvfx_vp_emit(vpc, arith(sat, VEC, MOV, dst, mask, neg(tmp), none, none));
564       break;
565    case TGSI_OPCODE_CMP:
566       insn = arith(0, VEC, MOV, none.reg, mask, src[0], none, none);
567       insn.cc_update = 1;
568       nvfx_vp_emit(vpc, insn);
569 
570       insn = arith(sat, VEC, MOV, dst, mask, src[2], none, none);
571       insn.cc_test = NVFX_COND_GE;
572       nvfx_vp_emit(vpc, insn);
573 
574       insn = arith(sat, VEC, MOV, dst, mask, src[1], none, none);
575       insn.cc_test = NVFX_COND_LT;
576       nvfx_vp_emit(vpc, insn);
577       break;
578    case TGSI_OPCODE_COS:
579       nvfx_vp_emit(vpc, arith(sat, SCA, COS, dst, mask, none, none, src[0]));
580       break;
581    case TGSI_OPCODE_DP2:
582       tmp = nvfx_src(temp(vpc));
583       nvfx_vp_emit(vpc, arith(0, VEC, MUL, tmp.reg, NVFX_VP_MASK_X | NVFX_VP_MASK_Y, src[0], src[1], none));
584       nvfx_vp_emit(vpc, arith(sat, VEC, ADD, dst, mask, swz(tmp, X, X, X, X), none, swz(tmp, Y, Y, Y, Y)));
585       break;
586    case TGSI_OPCODE_DP3:
587       nvfx_vp_emit(vpc, arith(sat, VEC, DP3, dst, mask, src[0], src[1], none));
588       break;
589    case TGSI_OPCODE_DP4:
590       nvfx_vp_emit(vpc, arith(sat, VEC, DP4, dst, mask, src[0], src[1], none));
591       break;
592    case TGSI_OPCODE_DPH:
593       nvfx_vp_emit(vpc, arith(sat, VEC, DPH, dst, mask, src[0], src[1], none));
594       break;
595    case TGSI_OPCODE_DST:
596       nvfx_vp_emit(vpc, arith(sat, VEC, DST, dst, mask, src[0], src[1], none));
597       break;
598    case TGSI_OPCODE_EX2:
599       nvfx_vp_emit(vpc, arith(sat, SCA, EX2, dst, mask, none, none, src[0]));
600       break;
601    case TGSI_OPCODE_EXP:
602       nvfx_vp_emit(vpc, arith(sat, SCA, EXP, dst, mask, none, none, src[0]));
603       break;
604    case TGSI_OPCODE_FLR:
605       nvfx_vp_emit(vpc, arith(sat, VEC, FLR, dst, mask, src[0], none, none));
606       break;
607    case TGSI_OPCODE_FRC:
608       nvfx_vp_emit(vpc, arith(sat, VEC, FRC, dst, mask, src[0], none, none));
609       break;
610    case TGSI_OPCODE_LG2:
611       nvfx_vp_emit(vpc, arith(sat, SCA, LG2, dst, mask, none, none, src[0]));
612       break;
613    case TGSI_OPCODE_LIT:
614       nvfx_vp_emit(vpc, arith(sat, SCA, LIT, dst, mask, none, none, src[0]));
615       break;
616    case TGSI_OPCODE_LOG:
617       nvfx_vp_emit(vpc, arith(sat, SCA, LOG, dst, mask, none, none, src[0]));
618       break;
619    case TGSI_OPCODE_LRP:
620       tmp = nvfx_src(temp(vpc));
621       nvfx_vp_emit(vpc, arith(0, VEC, MAD, tmp.reg, mask, neg(src[0]), src[2], src[2]));
622       nvfx_vp_emit(vpc, arith(sat, VEC, MAD, dst, mask, src[0], src[1], tmp));
623       break;
624    case TGSI_OPCODE_MAD:
625       nvfx_vp_emit(vpc, arith(sat, VEC, MAD, dst, mask, src[0], src[1], src[2]));
626       break;
627    case TGSI_OPCODE_MAX:
628       nvfx_vp_emit(vpc, arith(sat, VEC, MAX, dst, mask, src[0], src[1], none));
629       break;
630    case TGSI_OPCODE_MIN:
631       nvfx_vp_emit(vpc, arith(sat, VEC, MIN, dst, mask, src[0], src[1], none));
632       break;
633    case TGSI_OPCODE_MOV:
634       nvfx_vp_emit(vpc, arith(sat, VEC, MOV, dst, mask, src[0], none, none));
635       break;
636    case TGSI_OPCODE_MUL:
637       nvfx_vp_emit(vpc, arith(sat, VEC, MUL, dst, mask, src[0], src[1], none));
638       break;
639    case TGSI_OPCODE_NOP:
640       break;
641    case TGSI_OPCODE_POW:
642       tmp = nvfx_src(temp(vpc));
643       nvfx_vp_emit(vpc, arith(0, SCA, LG2, tmp.reg, NVFX_VP_MASK_X, none, none, swz(src[0], X, X, X, X)));
644       nvfx_vp_emit(vpc, arith(0, VEC, MUL, tmp.reg, NVFX_VP_MASK_X, swz(tmp, X, X, X, X), swz(src[1], X, X, X, X), none));
645       nvfx_vp_emit(vpc, arith(sat, SCA, EX2, dst, mask, none, none, swz(tmp, X, X, X, X)));
646       break;
647    case TGSI_OPCODE_RCP:
648       nvfx_vp_emit(vpc, arith(sat, SCA, RCP, dst, mask, none, none, src[0]));
649       break;
650    case TGSI_OPCODE_RSQ:
651       nvfx_vp_emit(vpc, arith(sat, SCA, RSQ, dst, mask, none, none, abs(src[0])));
652       break;
653    case TGSI_OPCODE_SEQ:
654       nvfx_vp_emit(vpc, arith(sat, VEC, SEQ, dst, mask, src[0], src[1], none));
655       break;
656    case TGSI_OPCODE_SFL:
657       nvfx_vp_emit(vpc, arith(sat, VEC, SFL, dst, mask, src[0], src[1], none));
658       break;
659    case TGSI_OPCODE_SGE:
660       nvfx_vp_emit(vpc, arith(sat, VEC, SGE, dst, mask, src[0], src[1], none));
661       break;
662    case TGSI_OPCODE_SGT:
663       nvfx_vp_emit(vpc, arith(sat, VEC, SGT, dst, mask, src[0], src[1], none));
664       break;
665    case TGSI_OPCODE_SIN:
666       nvfx_vp_emit(vpc, arith(sat, SCA, SIN, dst, mask, none, none, src[0]));
667       break;
668    case TGSI_OPCODE_SLE:
669       nvfx_vp_emit(vpc, arith(sat, VEC, SLE, dst, mask, src[0], src[1], none));
670       break;
671    case TGSI_OPCODE_SLT:
672       nvfx_vp_emit(vpc, arith(sat, VEC, SLT, dst, mask, src[0], src[1], none));
673       break;
674    case TGSI_OPCODE_SNE:
675       nvfx_vp_emit(vpc, arith(sat, VEC, SNE, dst, mask, src[0], src[1], none));
676       break;
677    case TGSI_OPCODE_SSG:
678       nvfx_vp_emit(vpc, arith(sat, VEC, SSG, dst, mask, src[0], none, none));
679       break;
680    case TGSI_OPCODE_STR:
681       nvfx_vp_emit(vpc, arith(sat, VEC, STR, dst, mask, src[0], src[1], none));
682       break;
683    case TGSI_OPCODE_SUB:
684       nvfx_vp_emit(vpc, arith(sat, VEC, ADD, dst, mask, src[0], none, neg(src[1])));
685       break;
686    case TGSI_OPCODE_TRUNC:
687       tmp = nvfx_src(temp(vpc));
688       insn = arith(0, VEC, MOV, none.reg, mask, src[0], none, none);
689       insn.cc_update = 1;
690       nvfx_vp_emit(vpc, insn);
691 
692       nvfx_vp_emit(vpc, arith(0, VEC, FLR, tmp.reg, mask, abs(src[0]), none, none));
693       nvfx_vp_emit(vpc, arith(sat, VEC, MOV, dst, mask, tmp, none, none));
694 
695       insn = arith(sat, VEC, MOV, dst, mask, neg(tmp), none, none);
696       insn.cc_test = NVFX_COND_LT;
697       nvfx_vp_emit(vpc, insn);
698       break;
699    case TGSI_OPCODE_XPD:
700       tmp = nvfx_src(temp(vpc));
701       nvfx_vp_emit(vpc, arith(0, VEC, MUL, tmp.reg, mask, swz(src[0], Z, X, Y, Y), swz(src[1], Y, Z, X, X), none));
702       nvfx_vp_emit(vpc, arith(sat, VEC, MAD, dst, (mask & ~NVFX_VP_MASK_W), swz(src[0], Y, Z, X, X), swz(src[1], Z, X, Y, Y), neg(tmp)));
703       break;
704    case TGSI_OPCODE_IF:
705       insn = arith(0, VEC, MOV, none.reg, NVFX_VP_MASK_X, src[0], none, none);
706       insn.cc_update = 1;
707       nvfx_vp_emit(vpc, insn);
708 
709       reloc.location = vpc->vp->nr_insns;
710       reloc.target = finst->Label.Label + 1;
711       util_dynarray_append(&vpc->label_relocs, struct nvfx_relocation, reloc);
712 
713       insn = arith(0, SCA, BRA, none.reg, 0, none, none, none);
714       insn.cc_test = NVFX_COND_EQ;
715       insn.cc_swz[0] = insn.cc_swz[1] = insn.cc_swz[2] = insn.cc_swz[3] = 0;
716       nvfx_vp_emit(vpc, insn);
717       break;
718    case TGSI_OPCODE_ELSE:
719    case TGSI_OPCODE_BRA:
720    case TGSI_OPCODE_CAL:
721       reloc.location = vpc->vp->nr_insns;
722       reloc.target = finst->Label.Label;
723       util_dynarray_append(&vpc->label_relocs, struct nvfx_relocation, reloc);
724 
725       if(finst->Instruction.Opcode == TGSI_OPCODE_CAL)
726          insn = arith(0, SCA, CAL, none.reg, 0, none, none, none);
727       else
728          insn = arith(0, SCA, BRA, none.reg, 0, none, none, none);
729       nvfx_vp_emit(vpc, insn);
730       break;
731    case TGSI_OPCODE_RET:
732       if(sub_depth || !vpc->vp->enabled_ucps) {
733          tmp = none;
734          tmp.swz[0] = tmp.swz[1] = tmp.swz[2] = tmp.swz[3] = 0;
735          nvfx_vp_emit(vpc, arith(0, SCA, RET, none.reg, 0, none, none, tmp));
736       } else {
737          reloc.location = vpc->vp->nr_insns;
738          reloc.target = vpc->info->num_instructions;
739          util_dynarray_append(&vpc->label_relocs, struct nvfx_relocation, reloc);
740          nvfx_vp_emit(vpc, arith(0, SCA, BRA, none.reg, 0, none, none, none));
741       }
742       break;
743    case TGSI_OPCODE_BGNSUB:
744       ++sub_depth;
745       break;
746    case TGSI_OPCODE_ENDSUB:
747       --sub_depth;
748       break;
749    case TGSI_OPCODE_ENDIF:
750       /* nothing to do here */
751       break;
752    case TGSI_OPCODE_BGNLOOP:
753       loop.cont_target = idx;
754       loop.brk_target = finst->Label.Label + 1;
755       util_dynarray_append(&vpc->loop_stack, struct nvfx_loop_entry, loop);
756       break;
757    case TGSI_OPCODE_ENDLOOP:
758       loop = util_dynarray_pop(&vpc->loop_stack, struct nvfx_loop_entry);
759 
760       reloc.location = vpc->vp->nr_insns;
761       reloc.target = loop.cont_target;
762       util_dynarray_append(&vpc->label_relocs, struct nvfx_relocation, reloc);
763 
764       nvfx_vp_emit(vpc, arith(0, SCA, BRA, none.reg, 0, none, none, none));
765       break;
766    case TGSI_OPCODE_CONT:
767       loop = util_dynarray_top(&vpc->loop_stack, struct nvfx_loop_entry);
768 
769       reloc.location = vpc->vp->nr_insns;
770       reloc.target = loop.cont_target;
771       util_dynarray_append(&vpc->label_relocs, struct nvfx_relocation, reloc);
772 
773       nvfx_vp_emit(vpc, arith(0, SCA, BRA, none.reg, 0, none, none, none));
774       break;
775    case TGSI_OPCODE_BRK:
776       loop = util_dynarray_top(&vpc->loop_stack, struct nvfx_loop_entry);
777 
778       reloc.location = vpc->vp->nr_insns;
779       reloc.target = loop.brk_target;
780       util_dynarray_append(&vpc->label_relocs, struct nvfx_relocation, reloc);
781 
782       nvfx_vp_emit(vpc, arith(0, SCA, BRA, none.reg, 0, none, none, none));
783       break;
784    case TGSI_OPCODE_END:
785       assert(!sub_depth);
786       if(vpc->vp->enabled_ucps) {
787          if(idx != (vpc->info->num_instructions - 1)) {
788             reloc.location = vpc->vp->nr_insns;
789             reloc.target = vpc->info->num_instructions;
790             util_dynarray_append(&vpc->label_relocs, struct nvfx_relocation, reloc);
791             nvfx_vp_emit(vpc, arith(0, SCA, BRA, none.reg, 0, none, none, none));
792          }
793       } else {
794          if(vpc->vp->nr_insns)
795             vpc->vp->insns[vpc->vp->nr_insns - 1].data[3] |= NVFX_VP_INST_LAST;
796          nvfx_vp_emit(vpc, arith(0, VEC, NOP, none.reg, 0, none, none, none));
797          vpc->vp->insns[vpc->vp->nr_insns - 1].data[3] |= NVFX_VP_INST_LAST;
798       }
799       break;
800    default:
801       NOUVEAU_ERR("invalid opcode %d\n", finst->Instruction.Opcode);
802       return FALSE;
803    }
804 
805    if(finst->Instruction.Saturate == TGSI_SAT_ZERO_ONE && !nv30->use_nv4x) {
806       if (!vpc->r_0_1.type)
807          vpc->r_0_1 = constant(vpc, -1, 0, 1, 0, 0);
808       nvfx_vp_emit(vpc, arith(0, VEC, MAX, dst, mask, nvfx_src(dst), swz(nvfx_src(vpc->r_0_1), X, X, X, X), none));
809       nvfx_vp_emit(vpc, arith(0, VEC, MIN, final_dst, mask, nvfx_src(dst), swz(nvfx_src(vpc->r_0_1), Y, Y, Y, Y), none));
810    }
811 
812    release_temps(vpc);
813    return TRUE;
814 }
815 
816 static boolean
nvfx_vertprog_parse_decl_output(struct nv30_context * nv30,struct nvfx_vpc * vpc,const struct tgsi_full_declaration * fdec)817 nvfx_vertprog_parse_decl_output(struct nv30_context *nv30, struct nvfx_vpc *vpc,
818                                 const struct tgsi_full_declaration *fdec)
819 {
820    unsigned num_texcoords = nv30->is_nv4x ? 10 : 8;
821    unsigned idx = fdec->Range.First;
822    int hw = 0, i;
823 
824    switch (fdec->Semantic.Name) {
825    case TGSI_SEMANTIC_POSITION:
826       hw = NVFX_VP(INST_DEST_POS);
827       vpc->hpos_idx = idx;
828       break;
829    case TGSI_SEMANTIC_CLIPVERTEX:
830       vpc->r_result[idx] = temp(vpc);
831       vpc->r_temps_discard = 0;
832       vpc->cvtx_idx = idx;
833       return TRUE;
834    case TGSI_SEMANTIC_COLOR:
835       if (fdec->Semantic.Index == 0) {
836          hw = NVFX_VP(INST_DEST_COL0);
837       } else
838       if (fdec->Semantic.Index == 1) {
839          hw = NVFX_VP(INST_DEST_COL1);
840       } else {
841          NOUVEAU_ERR("bad colour semantic index\n");
842          return FALSE;
843       }
844       break;
845    case TGSI_SEMANTIC_BCOLOR:
846       if (fdec->Semantic.Index == 0) {
847          hw = NVFX_VP(INST_DEST_BFC0);
848       } else
849       if (fdec->Semantic.Index == 1) {
850          hw = NVFX_VP(INST_DEST_BFC1);
851       } else {
852          NOUVEAU_ERR("bad bcolour semantic index\n");
853          return FALSE;
854       }
855       break;
856    case TGSI_SEMANTIC_FOG:
857       hw = NVFX_VP(INST_DEST_FOGC);
858       break;
859    case TGSI_SEMANTIC_PSIZE:
860       hw = NVFX_VP(INST_DEST_PSZ);
861       break;
862    case TGSI_SEMANTIC_GENERIC:
863       for (i = 0; i < num_texcoords; i++) {
864          if (vpc->vp->texcoord[i] == fdec->Semantic.Index) {
865             hw = NVFX_VP(INST_DEST_TC(i));
866             break;
867          }
868       }
869 
870       if (i == num_texcoords) {
871          vpc->r_result[idx] = nvfx_reg(NVFXSR_NONE, 0);
872          return TRUE;
873       }
874       break;
875    case TGSI_SEMANTIC_EDGEFLAG:
876       /* not really an error just a fallback */
877       NOUVEAU_ERR("cannot handle edgeflag output\n");
878       return FALSE;
879    default:
880       NOUVEAU_ERR("bad output semantic\n");
881       return FALSE;
882    }
883 
884    vpc->r_result[idx] = nvfx_reg(NVFXSR_OUTPUT, hw);
885    return TRUE;
886 }
887 
888 static boolean
nvfx_vertprog_prepare(struct nv30_context * nv30,struct nvfx_vpc * vpc)889 nvfx_vertprog_prepare(struct nv30_context *nv30, struct nvfx_vpc *vpc)
890 {
891    struct tgsi_parse_context p;
892    int high_const = -1, high_temp = -1, high_addr = -1, nr_imm = 0, i;
893 
894    tgsi_parse_init(&p, vpc->pipe.tokens);
895    while (!tgsi_parse_end_of_tokens(&p)) {
896       const union tgsi_full_token *tok = &p.FullToken;
897 
898       tgsi_parse_token(&p);
899       switch(tok->Token.Type) {
900       case TGSI_TOKEN_TYPE_IMMEDIATE:
901          nr_imm++;
902          break;
903       case TGSI_TOKEN_TYPE_DECLARATION:
904       {
905          const struct tgsi_full_declaration *fdec;
906 
907          fdec = &p.FullToken.FullDeclaration;
908          switch (fdec->Declaration.File) {
909          case TGSI_FILE_TEMPORARY:
910             if (fdec->Range.Last > high_temp) {
911                high_temp =
912                   fdec->Range.Last;
913             }
914             break;
915          case TGSI_FILE_ADDRESS:
916             if (fdec->Range.Last > high_addr) {
917                high_addr =
918                   fdec->Range.Last;
919             }
920             break;
921          case TGSI_FILE_CONSTANT:
922             if (fdec->Range.Last > high_const) {
923                high_const =
924                      fdec->Range.Last;
925             }
926             break;
927          case TGSI_FILE_OUTPUT:
928             if (!nvfx_vertprog_parse_decl_output(nv30, vpc, fdec))
929                return FALSE;
930             break;
931          default:
932             break;
933          }
934       }
935          break;
936       default:
937          break;
938       }
939    }
940    tgsi_parse_free(&p);
941 
942    if (nr_imm) {
943       vpc->imm = CALLOC(nr_imm, sizeof(struct nvfx_reg));
944       assert(vpc->imm);
945    }
946 
947    if (++high_temp) {
948       vpc->r_temp = CALLOC(high_temp, sizeof(struct nvfx_reg));
949       for (i = 0; i < high_temp; i++)
950          vpc->r_temp[i] = temp(vpc);
951    }
952 
953    if (++high_addr) {
954       vpc->r_address = CALLOC(high_addr, sizeof(struct nvfx_reg));
955       for (i = 0; i < high_addr; i++)
956          vpc->r_address[i] = nvfx_reg(NVFXSR_TEMP, i);
957    }
958 
959    if(++high_const) {
960       vpc->r_const = CALLOC(high_const, sizeof(struct nvfx_reg));
961       for (i = 0; i < high_const; i++)
962          vpc->r_const[i] = constant(vpc, i, 0, 0, 0, 0);
963    }
964 
965    vpc->r_temps_discard = 0;
966    return TRUE;
967 }
968 
969 DEBUG_GET_ONCE_BOOL_OPTION(nvfx_dump_vp, "NVFX_DUMP_VP", FALSE)
970 
971 boolean
_nvfx_vertprog_translate(struct nv30_context * nv30,struct nv30_vertprog * vp)972 _nvfx_vertprog_translate(struct nv30_context *nv30, struct nv30_vertprog *vp)
973 {
974    struct tgsi_parse_context parse;
975    struct nvfx_vpc *vpc = NULL;
976    struct nvfx_src none = nvfx_src(nvfx_reg(NVFXSR_NONE, 0));
977    struct util_dynarray insns;
978    int i, ucps;
979 
980    vp->translated = FALSE;
981    vp->nr_insns = 0;
982    vp->nr_consts = 0;
983 
984    vpc = CALLOC_STRUCT(nvfx_vpc);
985    if (!vpc)
986       return FALSE;
987    vpc->nv30 = nv30;
988    vpc->vp   = vp;
989    vpc->pipe = vp->pipe;
990    vpc->info = &vp->info;
991    vpc->cvtx_idx = -1;
992 
993    if (!nvfx_vertprog_prepare(nv30, vpc)) {
994       FREE(vpc);
995       return FALSE;
996    }
997 
998    /* Redirect post-transform vertex position to a temp if user clip
999     * planes are enabled.  We need to append code to the vtxprog
1000     * to handle clip planes later.
1001     */
1002    if (vp->enabled_ucps && vpc->cvtx_idx < 0)  {
1003       vpc->r_result[vpc->hpos_idx] = temp(vpc);
1004       vpc->r_temps_discard = 0;
1005       vpc->cvtx_idx = vpc->hpos_idx;
1006    }
1007 
1008    util_dynarray_init(&insns);
1009 
1010    tgsi_parse_init(&parse, vp->pipe.tokens);
1011    while (!tgsi_parse_end_of_tokens(&parse)) {
1012       tgsi_parse_token(&parse);
1013 
1014       switch (parse.FullToken.Token.Type) {
1015       case TGSI_TOKEN_TYPE_IMMEDIATE:
1016       {
1017          const struct tgsi_full_immediate *imm;
1018 
1019          imm = &parse.FullToken.FullImmediate;
1020          assert(imm->Immediate.DataType == TGSI_IMM_FLOAT32);
1021          assert(imm->Immediate.NrTokens == 4 + 1);
1022          vpc->imm[vpc->nr_imm++] =
1023             constant(vpc, -1,
1024                 imm->u[0].Float,
1025                 imm->u[1].Float,
1026                 imm->u[2].Float,
1027                 imm->u[3].Float);
1028       }
1029          break;
1030       case TGSI_TOKEN_TYPE_INSTRUCTION:
1031       {
1032          const struct tgsi_full_instruction *finst;
1033          unsigned idx = insns.size >> 2;
1034          util_dynarray_append(&insns, unsigned, vp->nr_insns);
1035          finst = &parse.FullToken.FullInstruction;
1036          if (!nvfx_vertprog_parse_instruction(nv30, vpc, idx, finst))
1037             goto out;
1038       }
1039          break;
1040       default:
1041          break;
1042       }
1043    }
1044 
1045    util_dynarray_append(&insns, unsigned, vp->nr_insns);
1046 
1047    for(unsigned i = 0; i < vpc->label_relocs.size; i += sizeof(struct nvfx_relocation))
1048    {
1049       struct nvfx_relocation* label_reloc = (struct nvfx_relocation*)((char*)vpc->label_relocs.data + i);
1050       struct nvfx_relocation hw_reloc;
1051 
1052       hw_reloc.location = label_reloc->location;
1053       hw_reloc.target = ((unsigned*)insns.data)[label_reloc->target];
1054 
1055       //debug_printf("hw %u -> tgsi %u = hw %u\n", hw_reloc.location, label_reloc->target, hw_reloc.target);
1056 
1057       util_dynarray_append(&vp->branch_relocs, struct nvfx_relocation, hw_reloc);
1058    }
1059    util_dynarray_fini(&insns);
1060    util_dynarray_trim(&vp->branch_relocs);
1061 
1062    /* XXX: what if we add a RET before?!  make sure we jump here...*/
1063 
1064    /* Write out HPOS if it was redirected to a temp earlier */
1065    if (vpc->r_result[vpc->hpos_idx].type != NVFXSR_OUTPUT) {
1066       struct nvfx_reg hpos = nvfx_reg(NVFXSR_OUTPUT,
1067                   NVFX_VP(INST_DEST_POS));
1068       struct nvfx_src htmp = nvfx_src(vpc->r_result[vpc->hpos_idx]);
1069 
1070       nvfx_vp_emit(vpc, arith(0, VEC, MOV, hpos, NVFX_VP_MASK_ALL, htmp, none, none));
1071    }
1072 
1073    /* Insert code to handle user clip planes */
1074    ucps = vp->enabled_ucps;
1075    while (ucps) {
1076       int i = ffs(ucps) - 1; ucps &= ~(1 << i);
1077       struct nvfx_reg cdst = nvfx_reg(NVFXSR_OUTPUT, NV30_VP_INST_DEST_CLP(i));
1078       struct nvfx_src ceqn = nvfx_src(nvfx_reg(NVFXSR_CONST, 512 + i));
1079       struct nvfx_src htmp = nvfx_src(vpc->r_result[vpc->cvtx_idx]);
1080       unsigned mask;
1081 
1082       if(nv30->is_nv4x)
1083       {
1084          switch (i) {
1085          case 0: case 3: mask = NVFX_VP_MASK_Y; break;
1086          case 1: case 4: mask = NVFX_VP_MASK_Z; break;
1087          case 2: case 5: mask = NVFX_VP_MASK_W; break;
1088          default:
1089             NOUVEAU_ERR("invalid clip dist #%d\n", i);
1090             goto out;
1091          }
1092       }
1093       else
1094          mask = NVFX_VP_MASK_X;
1095 
1096       nvfx_vp_emit(vpc, arith(0, VEC, DP4, cdst, mask, htmp, ceqn, none));
1097    }
1098 
1099    if (vpc->vp->nr_insns)
1100       vpc->vp->insns[vpc->vp->nr_insns - 1].data[3] |= NVFX_VP_INST_LAST;
1101 
1102    if(debug_get_option_nvfx_dump_vp())
1103    {
1104       debug_printf("\n");
1105       tgsi_dump(vpc->pipe.tokens, 0);
1106 
1107       debug_printf("\n%s vertex program:\n", nv30->is_nv4x ? "nv4x" : "nv3x");
1108       for (i = 0; i < vp->nr_insns; i++)
1109          debug_printf("%3u: %08x %08x %08x %08x\n", i, vp->insns[i].data[0], vp->insns[i].data[1], vp->insns[i].data[2], vp->insns[i].data[3]);
1110       debug_printf("\n");
1111    }
1112 
1113    vp->translated = TRUE;
1114 
1115 out:
1116    tgsi_parse_free(&parse);
1117    if(vpc) {
1118       util_dynarray_fini(&vpc->label_relocs);
1119       util_dynarray_fini(&vpc->loop_stack);
1120       FREE(vpc->r_temp);
1121       FREE(vpc->r_address);
1122       FREE(vpc->r_const);
1123       FREE(vpc->imm);
1124       FREE(vpc);
1125    }
1126 
1127    return vp->translated;
1128 }
1129