Subversion Repositories Kolibri OS

Rev

Blame | Last modification | View Log | RSS feed

  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.  
  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_SUB: return RC_OPCODE_SUB;
  54.         case TGSI_OPCODE_LRP: return RC_OPCODE_LRP;
  55.      /* case TGSI_OPCODE_DP2A: return RC_OPCODE_DP2A; */
  56.         case TGSI_OPCODE_FRC: return RC_OPCODE_FRC;
  57.         case TGSI_OPCODE_CLAMP: return RC_OPCODE_CLAMP;
  58.         case TGSI_OPCODE_FLR: return RC_OPCODE_FLR;
  59.         case TGSI_OPCODE_ROUND: return RC_OPCODE_ROUND;
  60.         case TGSI_OPCODE_EX2: return RC_OPCODE_EX2;
  61.         case TGSI_OPCODE_LG2: return RC_OPCODE_LG2;
  62.         case TGSI_OPCODE_POW: return RC_OPCODE_POW;
  63.         case TGSI_OPCODE_XPD: return RC_OPCODE_XPD;
  64.         case TGSI_OPCODE_ABS: return RC_OPCODE_ABS;
  65.         case TGSI_OPCODE_DPH: return RC_OPCODE_DPH;
  66.         case TGSI_OPCODE_COS: return RC_OPCODE_COS;
  67.         case TGSI_OPCODE_DDX: return RC_OPCODE_DDX;
  68.         case TGSI_OPCODE_DDY: return RC_OPCODE_DDY;
  69.         case TGSI_OPCODE_KILL: return RC_OPCODE_KILP;
  70.      /* case TGSI_OPCODE_PK2H: return RC_OPCODE_PK2H; */
  71.      /* case TGSI_OPCODE_PK2US: return RC_OPCODE_PK2US; */
  72.      /* case TGSI_OPCODE_PK4B: return RC_OPCODE_PK4B; */
  73.      /* case TGSI_OPCODE_PK4UB: return RC_OPCODE_PK4UB; */
  74.         case TGSI_OPCODE_SEQ: return RC_OPCODE_SEQ;
  75.         case TGSI_OPCODE_SGT: return RC_OPCODE_SGT;
  76.         case TGSI_OPCODE_SIN: return RC_OPCODE_SIN;
  77.         case TGSI_OPCODE_SLE: return RC_OPCODE_SLE;
  78.         case TGSI_OPCODE_SNE: return RC_OPCODE_SNE;
  79.         case TGSI_OPCODE_TEX: return RC_OPCODE_TEX;
  80.         case TGSI_OPCODE_TXD: return RC_OPCODE_TXD;
  81.         case TGSI_OPCODE_TXP: return RC_OPCODE_TXP;
  82.      /* case TGSI_OPCODE_UP2H: return RC_OPCODE_UP2H; */
  83.      /* case TGSI_OPCODE_UP2US: return RC_OPCODE_UP2US; */
  84.      /* case TGSI_OPCODE_UP4B: return RC_OPCODE_UP4B; */
  85.      /* case TGSI_OPCODE_UP4UB: return RC_OPCODE_UP4UB; */
  86.         case TGSI_OPCODE_ARR: return RC_OPCODE_ARR;
  87.      /* case TGSI_OPCODE_CAL: return RC_OPCODE_CAL; */
  88.      /* case TGSI_OPCODE_RET: return RC_OPCODE_RET; */
  89.         case TGSI_OPCODE_SSG: return RC_OPCODE_SSG;
  90.         case TGSI_OPCODE_CMP: return RC_OPCODE_CMP;
  91.         case TGSI_OPCODE_SCS: return RC_OPCODE_SCS;
  92.         case TGSI_OPCODE_TXB: return RC_OPCODE_TXB;
  93.      /* case TGSI_OPCODE_DIV: return RC_OPCODE_DIV; */
  94.         case TGSI_OPCODE_DP2: return RC_OPCODE_DP2;
  95.         case TGSI_OPCODE_TXL: return RC_OPCODE_TXL;
  96.         case TGSI_OPCODE_BRK: return RC_OPCODE_BRK;
  97.         case TGSI_OPCODE_IF: return RC_OPCODE_IF;
  98.         case TGSI_OPCODE_BGNLOOP: return RC_OPCODE_BGNLOOP;
  99.         case TGSI_OPCODE_ELSE: return RC_OPCODE_ELSE;
  100.         case TGSI_OPCODE_ENDIF: return RC_OPCODE_ENDIF;
  101.         case TGSI_OPCODE_ENDLOOP: return RC_OPCODE_ENDLOOP;
  102.      /* case TGSI_OPCODE_PUSHA: return RC_OPCODE_PUSHA; */
  103.      /* case TGSI_OPCODE_POPA: return RC_OPCODE_POPA; */
  104.         case TGSI_OPCODE_CEIL: return RC_OPCODE_CEIL;
  105.      /* case TGSI_OPCODE_I2F: return RC_OPCODE_I2F; */
  106.      /* case TGSI_OPCODE_NOT: return RC_OPCODE_NOT; */
  107.         case TGSI_OPCODE_TRUNC: return RC_OPCODE_TRUNC;
  108.      /* case TGSI_OPCODE_SHL: return RC_OPCODE_SHL; */
  109.      /* case TGSI_OPCODE_ISHR: return RC_OPCODE_SHR; */
  110.      /* case TGSI_OPCODE_AND: return RC_OPCODE_AND; */
  111.      /* case TGSI_OPCODE_OR: return RC_OPCODE_OR; */
  112.      /* case TGSI_OPCODE_MOD: return RC_OPCODE_MOD; */
  113.      /* case TGSI_OPCODE_XOR: return RC_OPCODE_XOR; */
  114.      /* case TGSI_OPCODE_SAD: return RC_OPCODE_SAD; */
  115.      /* case TGSI_OPCODE_TXF: return RC_OPCODE_TXF; */
  116.      /* case TGSI_OPCODE_TXQ: return RC_OPCODE_TXQ; */
  117.         case TGSI_OPCODE_CONT: return RC_OPCODE_CONT;
  118.      /* case TGSI_OPCODE_EMIT: return RC_OPCODE_EMIT; */
  119.      /* case TGSI_OPCODE_ENDPRIM: return RC_OPCODE_ENDPRIM; */
  120.      /* case TGSI_OPCODE_BGNLOOP2: return RC_OPCODE_BGNLOOP2; */
  121.      /* case TGSI_OPCODE_BGNSUB: return RC_OPCODE_BGNSUB; */
  122.      /* case TGSI_OPCODE_ENDLOOP2: return RC_OPCODE_ENDLOOP2; */
  123.      /* case TGSI_OPCODE_ENDSUB: return RC_OPCODE_ENDSUB; */
  124.         case TGSI_OPCODE_NOP: return RC_OPCODE_NOP;
  125.      /* case TGSI_OPCODE_CALLNZ: return RC_OPCODE_CALLNZ; */
  126.      /* case TGSI_OPCODE_BREAKC: return RC_OPCODE_BREAKC; */
  127.         case TGSI_OPCODE_KILL_IF: return RC_OPCODE_KIL;
  128.     }
  129.  
  130.     fprintf(stderr, "r300: Unknown TGSI/RC opcode: %s\n", tgsi_get_opcode_name(opcode));
  131.     return RC_OPCODE_ILLEGAL_OPCODE;
  132. }
  133.  
  134. static unsigned translate_saturate(unsigned saturate)
  135. {
  136.     switch(saturate) {
  137.         default:
  138.             fprintf(stderr, "Unknown saturate mode: %i\n", saturate);
  139.             /* fall-through */
  140.         case TGSI_SAT_NONE: return RC_SATURATE_NONE;
  141.         case TGSI_SAT_ZERO_ONE: return RC_SATURATE_ZERO_ONE;
  142.     }
  143. }
  144.  
  145. static unsigned translate_register_file(unsigned file)
  146. {
  147.     switch(file) {
  148.         case TGSI_FILE_CONSTANT: return RC_FILE_CONSTANT;
  149.         case TGSI_FILE_IMMEDIATE: return RC_FILE_CONSTANT;
  150.         case TGSI_FILE_INPUT: return RC_FILE_INPUT;
  151.         case TGSI_FILE_OUTPUT: return RC_FILE_OUTPUT;
  152.         default:
  153.             fprintf(stderr, "Unhandled register file: %i\n", file);
  154.             /* fall-through */
  155.         case TGSI_FILE_TEMPORARY: return RC_FILE_TEMPORARY;
  156.         case TGSI_FILE_ADDRESS: return RC_FILE_ADDRESS;
  157.     }
  158. }
  159.  
  160. static int translate_register_index(
  161.     struct tgsi_to_rc * ttr,
  162.     unsigned file,
  163.     int index)
  164. {
  165.     if (file == TGSI_FILE_IMMEDIATE)
  166.         return ttr->immediate_offset + index;
  167.  
  168.     return index;
  169. }
  170.  
  171. static void transform_dstreg(
  172.     struct tgsi_to_rc * ttr,
  173.     struct rc_dst_register * dst,
  174.     struct tgsi_full_dst_register * src)
  175. {
  176.     dst->File = translate_register_file(src->Register.File);
  177.     dst->Index = translate_register_index(ttr, src->Register.File, src->Register.Index);
  178.     dst->WriteMask = src->Register.WriteMask;
  179.  
  180.     if (src->Register.Indirect) {
  181.         ttr->error = TRUE;
  182.         fprintf(stderr, "r300: Relative addressing of destination operands "
  183.                 "is unsupported.\n");
  184.     }
  185. }
  186.  
  187. static void transform_srcreg(
  188.     struct tgsi_to_rc * ttr,
  189.     struct rc_src_register * dst,
  190.     struct tgsi_full_src_register * src)
  191. {
  192.     unsigned i, j;
  193.  
  194.     dst->File = translate_register_file(src->Register.File);
  195.     dst->Index = translate_register_index(ttr, src->Register.File, src->Register.Index);
  196.     dst->RelAddr = src->Register.Indirect;
  197.     dst->Swizzle = tgsi_util_get_full_src_register_swizzle(src, 0);
  198.     dst->Swizzle |= tgsi_util_get_full_src_register_swizzle(src, 1) << 3;
  199.     dst->Swizzle |= tgsi_util_get_full_src_register_swizzle(src, 2) << 6;
  200.     dst->Swizzle |= tgsi_util_get_full_src_register_swizzle(src, 3) << 9;
  201.     dst->Abs = src->Register.Absolute;
  202.     dst->Negate = src->Register.Negate ? RC_MASK_XYZW : 0;
  203.  
  204.     if (src->Register.File == TGSI_FILE_IMMEDIATE) {
  205.         for (i = 0; i < ttr->imms_to_swizzle_count; i++) {
  206.             if (ttr->imms_to_swizzle[i].index == src->Register.Index) {
  207.                 dst->File = RC_FILE_TEMPORARY;
  208.                 dst->Index = 0;
  209.                 dst->Swizzle = 0;
  210.                 for (j = 0; j < 4; j++) {
  211.                     dst->Swizzle |= GET_SWZ(ttr->imms_to_swizzle[i].swizzle,
  212.                         tgsi_util_get_full_src_register_swizzle(src, j)) << (j * 3);
  213.                 }
  214.                 break;
  215.             }
  216.         }
  217.     }
  218. }
  219.  
  220. static void transform_texture(struct rc_instruction * dst, struct tgsi_instruction_texture src,
  221.                               uint32_t *shadowSamplers)
  222. {
  223.     switch(src.Texture) {
  224.         case TGSI_TEXTURE_1D:
  225.             dst->U.I.TexSrcTarget = RC_TEXTURE_1D;
  226.             break;
  227.         case TGSI_TEXTURE_2D:
  228.             dst->U.I.TexSrcTarget = RC_TEXTURE_2D;
  229.             break;
  230.         case TGSI_TEXTURE_3D:
  231.             dst->U.I.TexSrcTarget = RC_TEXTURE_3D;
  232.             break;
  233.         case TGSI_TEXTURE_CUBE:
  234.             dst->U.I.TexSrcTarget = RC_TEXTURE_CUBE;
  235.             break;
  236.         case TGSI_TEXTURE_RECT:
  237.             dst->U.I.TexSrcTarget = RC_TEXTURE_RECT;
  238.             break;
  239.         case TGSI_TEXTURE_SHADOW1D:
  240.             dst->U.I.TexSrcTarget = RC_TEXTURE_1D;
  241.             dst->U.I.TexShadow = 1;
  242.             *shadowSamplers |= 1 << dst->U.I.TexSrcUnit;
  243.             break;
  244.         case TGSI_TEXTURE_SHADOW2D:
  245.             dst->U.I.TexSrcTarget = RC_TEXTURE_2D;
  246.             dst->U.I.TexShadow = 1;
  247.             *shadowSamplers |= 1 << dst->U.I.TexSrcUnit;
  248.             break;
  249.         case TGSI_TEXTURE_SHADOWRECT:
  250.             dst->U.I.TexSrcTarget = RC_TEXTURE_RECT;
  251.             dst->U.I.TexShadow = 1;
  252.             *shadowSamplers |= 1 << dst->U.I.TexSrcUnit;
  253.             break;
  254.     }
  255.     dst->U.I.TexSwizzle = RC_SWIZZLE_XYZW;
  256. }
  257.  
  258. static void transform_instruction(struct tgsi_to_rc * ttr, struct tgsi_full_instruction * src)
  259. {
  260.     struct rc_instruction * dst;
  261.     int i;
  262.  
  263.     dst = rc_insert_new_instruction(ttr->compiler, ttr->compiler->Program.Instructions.Prev);
  264.     dst->U.I.Opcode = translate_opcode(src->Instruction.Opcode);
  265.     dst->U.I.SaturateMode = translate_saturate(src->Instruction.Saturate);
  266.  
  267.     if (src->Instruction.NumDstRegs)
  268.         transform_dstreg(ttr, &dst->U.I.DstReg, &src->Dst[0]);
  269.  
  270.     for(i = 0; i < src->Instruction.NumSrcRegs; ++i) {
  271.         if (src->Src[i].Register.File == TGSI_FILE_SAMPLER)
  272.             dst->U.I.TexSrcUnit = src->Src[i].Register.Index;
  273.         else
  274.             transform_srcreg(ttr, &dst->U.I.SrcReg[i], &src->Src[i]);
  275.     }
  276.  
  277.     /* Texturing. */
  278.     if (src->Instruction.Texture)
  279.         transform_texture(dst, src->Texture,
  280.                           &ttr->compiler->Program.ShadowSamplers);
  281. }
  282.  
  283. static void handle_immediate(struct tgsi_to_rc * ttr,
  284.                              struct tgsi_full_immediate * imm,
  285.                              unsigned index)
  286. {
  287.     struct rc_constant constant;
  288.     unsigned swizzle = 0;
  289.     boolean can_swizzle = TRUE;
  290.     unsigned i;
  291.  
  292.     for (i = 0; i < 4; i++) {
  293.         if (imm->u[i].Float == 0.0f) {
  294.             swizzle |= RC_SWIZZLE_ZERO << (i * 3);
  295.         } else if (imm->u[i].Float == 0.5f && ttr->use_half_swizzles) {
  296.             swizzle |= RC_SWIZZLE_HALF << (i * 3);
  297.         } else if (imm->u[i].Float == 1.0f) {
  298.             swizzle |= RC_SWIZZLE_ONE << (i * 3);
  299.         } else {
  300.             can_swizzle = FALSE;
  301.             break;
  302.         }
  303.     }
  304.  
  305.     if (can_swizzle) {
  306.         ttr->imms_to_swizzle[ttr->imms_to_swizzle_count].index = index;
  307.         ttr->imms_to_swizzle[ttr->imms_to_swizzle_count].swizzle = swizzle;
  308.         ttr->imms_to_swizzle_count++;
  309.     } else {
  310.         constant.Type = RC_CONSTANT_IMMEDIATE;
  311.         constant.Size = 4;
  312.         for(i = 0; i < 4; ++i)
  313.             constant.u.Immediate[i] = imm->u[i].Float;
  314.         rc_constants_add(&ttr->compiler->Program.Constants, &constant);
  315.     }
  316. }
  317.  
  318. void r300_tgsi_to_rc(struct tgsi_to_rc * ttr,
  319.                      const struct tgsi_token * tokens)
  320. {
  321.     struct tgsi_full_instruction *inst;
  322.     struct tgsi_parse_context parser;
  323.     unsigned imm_index = 0;
  324.     int i;
  325.  
  326.     ttr->error = FALSE;
  327.  
  328.     /* Allocate constants placeholders.
  329.      *
  330.      * Note: What if declared constants are not contiguous? */
  331.     for(i = 0; i <= ttr->info->file_max[TGSI_FILE_CONSTANT]; ++i) {
  332.         struct rc_constant constant;
  333.         memset(&constant, 0, sizeof(constant));
  334.         constant.Type = RC_CONSTANT_EXTERNAL;
  335.         constant.Size = 4;
  336.         constant.u.External = i;
  337.         rc_constants_add(&ttr->compiler->Program.Constants, &constant);
  338.     }
  339.  
  340.     ttr->immediate_offset = ttr->compiler->Program.Constants.Count;
  341.  
  342.     ttr->imms_to_swizzle = malloc(ttr->info->immediate_count * sizeof(struct swizzled_imms));
  343.     ttr->imms_to_swizzle_count = 0;
  344.  
  345.     tgsi_parse_init(&parser, tokens);
  346.  
  347.     while (!tgsi_parse_end_of_tokens(&parser)) {
  348.         tgsi_parse_token(&parser);
  349.  
  350.         switch (parser.FullToken.Token.Type) {
  351.             case TGSI_TOKEN_TYPE_DECLARATION:
  352.                 break;
  353.             case TGSI_TOKEN_TYPE_IMMEDIATE:
  354.                 handle_immediate(ttr, &parser.FullToken.FullImmediate, imm_index);
  355.                 imm_index++;
  356.                 break;
  357.             case TGSI_TOKEN_TYPE_INSTRUCTION:
  358.                 inst = &parser.FullToken.FullInstruction;
  359.                 if (inst->Instruction.Opcode == TGSI_OPCODE_END) {
  360.                     break;
  361.                 }
  362.  
  363.                 transform_instruction(ttr, inst);
  364.                 break;
  365.         }
  366.     }
  367.  
  368.     tgsi_parse_free(&parser);
  369.  
  370.     free(ttr->imms_to_swizzle);
  371.  
  372.     rc_calculate_inputs_outputs(ttr->compiler);
  373. }
  374.