1 /*
2 * Copyright 2009 Nicolai Hähnle <nhaehnle@gmail.com>
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * on the rights to use, copy, modify, merge, publish, distribute, sub
8 * license, and/or sell copies of the Software, and to permit persons to whom
9 * the Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
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,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE COPYRIGHT HOLDER(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21 * USE OR OTHER DEALINGS IN THE SOFTWARE. */
22
23 #include <stdio.h>
24 #include "r300_tgsi_to_rc.h"
25
26 #include "compiler/radeon_compiler.h"
27
28 #include "tgsi/tgsi_info.h"
29 #include "tgsi/tgsi_parse.h"
30 #include "tgsi/tgsi_scan.h"
31 #include "tgsi/tgsi_util.h"
32
translate_opcode(unsigned opcode)33 static unsigned translate_opcode(unsigned opcode)
34 {
35 switch(opcode) {
36 case TGSI_OPCODE_ARL: return RC_OPCODE_ARL;
37 case TGSI_OPCODE_MOV: return RC_OPCODE_MOV;
38 case TGSI_OPCODE_LIT: return RC_OPCODE_LIT;
39 case TGSI_OPCODE_RCP: return RC_OPCODE_RCP;
40 case TGSI_OPCODE_RSQ: return RC_OPCODE_RSQ;
41 case TGSI_OPCODE_EXP: return RC_OPCODE_EXP;
42 case TGSI_OPCODE_LOG: return RC_OPCODE_LOG;
43 case TGSI_OPCODE_MUL: return RC_OPCODE_MUL;
44 case TGSI_OPCODE_ADD: return RC_OPCODE_ADD;
45 case TGSI_OPCODE_DP3: return RC_OPCODE_DP3;
46 case TGSI_OPCODE_DP4: return RC_OPCODE_DP4;
47 case TGSI_OPCODE_DST: return RC_OPCODE_DST;
48 case TGSI_OPCODE_MIN: return RC_OPCODE_MIN;
49 case TGSI_OPCODE_MAX: return RC_OPCODE_MAX;
50 case TGSI_OPCODE_SLT: return RC_OPCODE_SLT;
51 case TGSI_OPCODE_SGE: return RC_OPCODE_SGE;
52 case TGSI_OPCODE_MAD: return RC_OPCODE_MAD;
53 case TGSI_OPCODE_LRP: return RC_OPCODE_LRP;
54 /* case TGSI_OPCODE_DP2A: return RC_OPCODE_DP2A; */
55 case TGSI_OPCODE_FRC: return RC_OPCODE_FRC;
56 case TGSI_OPCODE_CLAMP: return RC_OPCODE_CLAMP;
57 case TGSI_OPCODE_FLR: return RC_OPCODE_FLR;
58 case TGSI_OPCODE_ROUND: return RC_OPCODE_ROUND;
59 case TGSI_OPCODE_EX2: return RC_OPCODE_EX2;
60 case TGSI_OPCODE_LG2: return RC_OPCODE_LG2;
61 case TGSI_OPCODE_POW: return RC_OPCODE_POW;
62 case TGSI_OPCODE_XPD: return RC_OPCODE_XPD;
63 case TGSI_OPCODE_DPH: return RC_OPCODE_DPH;
64 case TGSI_OPCODE_COS: return RC_OPCODE_COS;
65 case TGSI_OPCODE_DDX: return RC_OPCODE_DDX;
66 case TGSI_OPCODE_DDY: return RC_OPCODE_DDY;
67 case TGSI_OPCODE_KILL: return RC_OPCODE_KILP;
68 /* case TGSI_OPCODE_PK2H: return RC_OPCODE_PK2H; */
69 /* case TGSI_OPCODE_PK2US: return RC_OPCODE_PK2US; */
70 /* case TGSI_OPCODE_PK4B: return RC_OPCODE_PK4B; */
71 /* case TGSI_OPCODE_PK4UB: return RC_OPCODE_PK4UB; */
72 case TGSI_OPCODE_SEQ: return RC_OPCODE_SEQ;
73 case TGSI_OPCODE_SGT: return RC_OPCODE_SGT;
74 case TGSI_OPCODE_SIN: return RC_OPCODE_SIN;
75 case TGSI_OPCODE_SLE: return RC_OPCODE_SLE;
76 case TGSI_OPCODE_SNE: return RC_OPCODE_SNE;
77 case TGSI_OPCODE_TEX: return RC_OPCODE_TEX;
78 case TGSI_OPCODE_TXD: return RC_OPCODE_TXD;
79 case TGSI_OPCODE_TXP: return RC_OPCODE_TXP;
80 /* case TGSI_OPCODE_UP2H: return RC_OPCODE_UP2H; */
81 /* case TGSI_OPCODE_UP2US: return RC_OPCODE_UP2US; */
82 /* case TGSI_OPCODE_UP4B: return RC_OPCODE_UP4B; */
83 /* case TGSI_OPCODE_UP4UB: return RC_OPCODE_UP4UB; */
84 case TGSI_OPCODE_ARR: return RC_OPCODE_ARR;
85 /* case TGSI_OPCODE_CAL: return RC_OPCODE_CAL; */
86 /* case TGSI_OPCODE_RET: return RC_OPCODE_RET; */
87 case TGSI_OPCODE_SSG: return RC_OPCODE_SSG;
88 case TGSI_OPCODE_CMP: return RC_OPCODE_CMP;
89 case TGSI_OPCODE_SCS: return RC_OPCODE_SCS;
90 case TGSI_OPCODE_TXB: return RC_OPCODE_TXB;
91 /* case TGSI_OPCODE_DIV: return RC_OPCODE_DIV; */
92 case TGSI_OPCODE_DP2: return RC_OPCODE_DP2;
93 case TGSI_OPCODE_TXL: return RC_OPCODE_TXL;
94 case TGSI_OPCODE_BRK: return RC_OPCODE_BRK;
95 case TGSI_OPCODE_IF: return RC_OPCODE_IF;
96 case TGSI_OPCODE_BGNLOOP: return RC_OPCODE_BGNLOOP;
97 case TGSI_OPCODE_ELSE: return RC_OPCODE_ELSE;
98 case TGSI_OPCODE_ENDIF: return RC_OPCODE_ENDIF;
99 case TGSI_OPCODE_ENDLOOP: return RC_OPCODE_ENDLOOP;
100 /* case TGSI_OPCODE_PUSHA: return RC_OPCODE_PUSHA; */
101 /* case TGSI_OPCODE_POPA: return RC_OPCODE_POPA; */
102 case TGSI_OPCODE_CEIL: return RC_OPCODE_CEIL;
103 /* case TGSI_OPCODE_I2F: return RC_OPCODE_I2F; */
104 /* case TGSI_OPCODE_NOT: return RC_OPCODE_NOT; */
105 case TGSI_OPCODE_TRUNC: return RC_OPCODE_TRUNC;
106 /* case TGSI_OPCODE_SHL: return RC_OPCODE_SHL; */
107 /* case TGSI_OPCODE_ISHR: return RC_OPCODE_SHR; */
108 /* case TGSI_OPCODE_AND: return RC_OPCODE_AND; */
109 /* case TGSI_OPCODE_OR: return RC_OPCODE_OR; */
110 /* case TGSI_OPCODE_MOD: return RC_OPCODE_MOD; */
111 /* case TGSI_OPCODE_XOR: return RC_OPCODE_XOR; */
112 /* case TGSI_OPCODE_SAD: return RC_OPCODE_SAD; */
113 /* case TGSI_OPCODE_TXF: return RC_OPCODE_TXF; */
114 /* case TGSI_OPCODE_TXQ: return RC_OPCODE_TXQ; */
115 case TGSI_OPCODE_CONT: return RC_OPCODE_CONT;
116 /* case TGSI_OPCODE_EMIT: return RC_OPCODE_EMIT; */
117 /* case TGSI_OPCODE_ENDPRIM: return RC_OPCODE_ENDPRIM; */
118 /* case TGSI_OPCODE_BGNLOOP2: return RC_OPCODE_BGNLOOP2; */
119 /* case TGSI_OPCODE_BGNSUB: return RC_OPCODE_BGNSUB; */
120 /* case TGSI_OPCODE_ENDLOOP2: return RC_OPCODE_ENDLOOP2; */
121 /* case TGSI_OPCODE_ENDSUB: return RC_OPCODE_ENDSUB; */
122 case TGSI_OPCODE_NOP: return RC_OPCODE_NOP;
123 /* case TGSI_OPCODE_CALLNZ: return RC_OPCODE_CALLNZ; */
124 /* case TGSI_OPCODE_BREAKC: return RC_OPCODE_BREAKC; */
125 case TGSI_OPCODE_KILL_IF: return RC_OPCODE_KIL;
126 }
127
128 fprintf(stderr, "r300: Unknown TGSI/RC opcode: %s\n", tgsi_get_opcode_name(opcode));
129 return RC_OPCODE_ILLEGAL_OPCODE;
130 }
131
translate_saturate(unsigned saturate)132 static unsigned translate_saturate(unsigned saturate)
133 {
134 return saturate ? RC_SATURATE_ZERO_ONE : RC_SATURATE_NONE;
135 }
136
translate_register_file(unsigned file)137 static unsigned translate_register_file(unsigned file)
138 {
139 switch(file) {
140 case TGSI_FILE_CONSTANT: return RC_FILE_CONSTANT;
141 case TGSI_FILE_IMMEDIATE: return RC_FILE_CONSTANT;
142 case TGSI_FILE_INPUT: return RC_FILE_INPUT;
143 case TGSI_FILE_OUTPUT: return RC_FILE_OUTPUT;
144 default:
145 fprintf(stderr, "Unhandled register file: %i\n", file);
146 /* fall-through */
147 case TGSI_FILE_TEMPORARY: return RC_FILE_TEMPORARY;
148 case TGSI_FILE_ADDRESS: return RC_FILE_ADDRESS;
149 }
150 }
151
translate_register_index(struct tgsi_to_rc * ttr,unsigned file,int index)152 static int translate_register_index(
153 struct tgsi_to_rc * ttr,
154 unsigned file,
155 int index)
156 {
157 if (file == TGSI_FILE_IMMEDIATE)
158 return ttr->immediate_offset + index;
159
160 return index;
161 }
162
transform_dstreg(struct tgsi_to_rc * ttr,struct rc_dst_register * dst,struct tgsi_full_dst_register * src)163 static void transform_dstreg(
164 struct tgsi_to_rc * ttr,
165 struct rc_dst_register * dst,
166 struct tgsi_full_dst_register * src)
167 {
168 dst->File = translate_register_file(src->Register.File);
169 dst->Index = translate_register_index(ttr, src->Register.File, src->Register.Index);
170 dst->WriteMask = src->Register.WriteMask;
171
172 if (src->Register.Indirect) {
173 ttr->error = TRUE;
174 fprintf(stderr, "r300: Relative addressing of destination operands "
175 "is unsupported.\n");
176 }
177 }
178
transform_srcreg(struct tgsi_to_rc * ttr,struct rc_src_register * dst,struct tgsi_full_src_register * src)179 static void transform_srcreg(
180 struct tgsi_to_rc * ttr,
181 struct rc_src_register * dst,
182 struct tgsi_full_src_register * src)
183 {
184 unsigned i, j;
185
186 dst->File = translate_register_file(src->Register.File);
187 dst->Index = translate_register_index(ttr, src->Register.File, src->Register.Index);
188 dst->RelAddr = src->Register.Indirect;
189 dst->Swizzle = tgsi_util_get_full_src_register_swizzle(src, 0);
190 dst->Swizzle |= tgsi_util_get_full_src_register_swizzle(src, 1) << 3;
191 dst->Swizzle |= tgsi_util_get_full_src_register_swizzle(src, 2) << 6;
192 dst->Swizzle |= tgsi_util_get_full_src_register_swizzle(src, 3) << 9;
193 dst->Abs = src->Register.Absolute;
194 dst->Negate = src->Register.Negate ? RC_MASK_XYZW : 0;
195
196 if (src->Register.File == TGSI_FILE_IMMEDIATE) {
197 for (i = 0; i < ttr->imms_to_swizzle_count; i++) {
198 if (ttr->imms_to_swizzle[i].index == src->Register.Index) {
199 dst->File = RC_FILE_TEMPORARY;
200 dst->Index = 0;
201 dst->Swizzle = 0;
202 for (j = 0; j < 4; j++) {
203 dst->Swizzle |= GET_SWZ(ttr->imms_to_swizzle[i].swizzle,
204 tgsi_util_get_full_src_register_swizzle(src, j)) << (j * 3);
205 }
206 break;
207 }
208 }
209 }
210 }
211
transform_texture(struct rc_instruction * dst,struct tgsi_instruction_texture src,uint32_t * shadowSamplers)212 static void transform_texture(struct rc_instruction * dst, struct tgsi_instruction_texture src,
213 uint32_t *shadowSamplers)
214 {
215 switch(src.Texture) {
216 case TGSI_TEXTURE_1D:
217 dst->U.I.TexSrcTarget = RC_TEXTURE_1D;
218 break;
219 case TGSI_TEXTURE_2D:
220 dst->U.I.TexSrcTarget = RC_TEXTURE_2D;
221 break;
222 case TGSI_TEXTURE_3D:
223 dst->U.I.TexSrcTarget = RC_TEXTURE_3D;
224 break;
225 case TGSI_TEXTURE_CUBE:
226 dst->U.I.TexSrcTarget = RC_TEXTURE_CUBE;
227 break;
228 case TGSI_TEXTURE_RECT:
229 dst->U.I.TexSrcTarget = RC_TEXTURE_RECT;
230 break;
231 case TGSI_TEXTURE_SHADOW1D:
232 dst->U.I.TexSrcTarget = RC_TEXTURE_1D;
233 dst->U.I.TexShadow = 1;
234 *shadowSamplers |= 1 << dst->U.I.TexSrcUnit;
235 break;
236 case TGSI_TEXTURE_SHADOW2D:
237 dst->U.I.TexSrcTarget = RC_TEXTURE_2D;
238 dst->U.I.TexShadow = 1;
239 *shadowSamplers |= 1 << dst->U.I.TexSrcUnit;
240 break;
241 case TGSI_TEXTURE_SHADOWRECT:
242 dst->U.I.TexSrcTarget = RC_TEXTURE_RECT;
243 dst->U.I.TexShadow = 1;
244 *shadowSamplers |= 1 << dst->U.I.TexSrcUnit;
245 break;
246 }
247 dst->U.I.TexSwizzle = RC_SWIZZLE_XYZW;
248 }
249
transform_instruction(struct tgsi_to_rc * ttr,struct tgsi_full_instruction * src)250 static void transform_instruction(struct tgsi_to_rc * ttr, struct tgsi_full_instruction * src)
251 {
252 struct rc_instruction * dst;
253 int i;
254
255 dst = rc_insert_new_instruction(ttr->compiler, ttr->compiler->Program.Instructions.Prev);
256 dst->U.I.Opcode = translate_opcode(src->Instruction.Opcode);
257 dst->U.I.SaturateMode = translate_saturate(src->Instruction.Saturate);
258
259 if (src->Instruction.NumDstRegs)
260 transform_dstreg(ttr, &dst->U.I.DstReg, &src->Dst[0]);
261
262 for(i = 0; i < src->Instruction.NumSrcRegs; ++i) {
263 if (src->Src[i].Register.File == TGSI_FILE_SAMPLER)
264 dst->U.I.TexSrcUnit = src->Src[i].Register.Index;
265 else
266 transform_srcreg(ttr, &dst->U.I.SrcReg[i], &src->Src[i]);
267 }
268
269 /* Texturing. */
270 if (src->Instruction.Texture)
271 transform_texture(dst, src->Texture,
272 &ttr->compiler->Program.ShadowSamplers);
273 }
274
handle_immediate(struct tgsi_to_rc * ttr,struct tgsi_full_immediate * imm,unsigned index)275 static void handle_immediate(struct tgsi_to_rc * ttr,
276 struct tgsi_full_immediate * imm,
277 unsigned index)
278 {
279 struct rc_constant constant;
280 unsigned swizzle = 0;
281 boolean can_swizzle = TRUE;
282 unsigned i;
283
284 for (i = 0; i < 4; i++) {
285 if (imm->u[i].Float == 0.0f) {
286 swizzle |= RC_SWIZZLE_ZERO << (i * 3);
287 } else if (imm->u[i].Float == 0.5f && ttr->use_half_swizzles) {
288 swizzle |= RC_SWIZZLE_HALF << (i * 3);
289 } else if (imm->u[i].Float == 1.0f) {
290 swizzle |= RC_SWIZZLE_ONE << (i * 3);
291 } else {
292 can_swizzle = FALSE;
293 break;
294 }
295 }
296
297 if (can_swizzle) {
298 ttr->imms_to_swizzle[ttr->imms_to_swizzle_count].index = index;
299 ttr->imms_to_swizzle[ttr->imms_to_swizzle_count].swizzle = swizzle;
300 ttr->imms_to_swizzle_count++;
301 } else {
302 constant.Type = RC_CONSTANT_IMMEDIATE;
303 constant.Size = 4;
304 for(i = 0; i < 4; ++i)
305 constant.u.Immediate[i] = imm->u[i].Float;
306 rc_constants_add(&ttr->compiler->Program.Constants, &constant);
307 }
308 }
309
r300_tgsi_to_rc(struct tgsi_to_rc * ttr,const struct tgsi_token * tokens)310 void r300_tgsi_to_rc(struct tgsi_to_rc * ttr,
311 const struct tgsi_token * tokens)
312 {
313 struct tgsi_full_instruction *inst;
314 struct tgsi_parse_context parser;
315 unsigned imm_index = 0;
316 int i;
317
318 ttr->error = FALSE;
319
320 /* Allocate constants placeholders.
321 *
322 * Note: What if declared constants are not contiguous? */
323 for(i = 0; i <= ttr->info->file_max[TGSI_FILE_CONSTANT]; ++i) {
324 struct rc_constant constant;
325 memset(&constant, 0, sizeof(constant));
326 constant.Type = RC_CONSTANT_EXTERNAL;
327 constant.Size = 4;
328 constant.u.External = i;
329 rc_constants_add(&ttr->compiler->Program.Constants, &constant);
330 }
331
332 ttr->immediate_offset = ttr->compiler->Program.Constants.Count;
333
334 ttr->imms_to_swizzle = malloc(ttr->info->immediate_count * sizeof(struct swizzled_imms));
335 ttr->imms_to_swizzle_count = 0;
336
337 tgsi_parse_init(&parser, tokens);
338
339 while (!tgsi_parse_end_of_tokens(&parser)) {
340 tgsi_parse_token(&parser);
341
342 switch (parser.FullToken.Token.Type) {
343 case TGSI_TOKEN_TYPE_DECLARATION:
344 break;
345 case TGSI_TOKEN_TYPE_IMMEDIATE:
346 handle_immediate(ttr, &parser.FullToken.FullImmediate, imm_index);
347 imm_index++;
348 break;
349 case TGSI_TOKEN_TYPE_INSTRUCTION:
350 inst = &parser.FullToken.FullInstruction;
351 if (inst->Instruction.Opcode == TGSI_OPCODE_END) {
352 break;
353 }
354
355 transform_instruction(ttr, inst);
356 break;
357 }
358 }
359
360 tgsi_parse_free(&parser);
361
362 free(ttr->imms_to_swizzle);
363
364 rc_calculate_inputs_outputs(ttr->compiler);
365 }
366