src/gallium/state_trackers/clover/tgsi/compiler.cpp

   1 //
   2 // Copyright 2012 Francisco Jerez
   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 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8 // and/or sell copies of the Software, and to permit persons to whom the
   9 // Software is furnished to do so, subject to the following conditions:
  10 //
  11 // The above copyright notice and this permission notice shall be included in
  12 // all copies or substantial portions of the Software.
  13 //
  14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17 // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18 // OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19 // ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20 // OTHER DEALINGS IN THE SOFTWARE.
  21 //
  22
  23 #include <sstream>
  24
  25 #include "core/compiler.hpp"
  26
  27 #include "tgsi/tgsi_parse.h"
  28 #include "tgsi/tgsi_text.h"
  29 #include "util/u_memory.h"
  30
  31 using namespace clover;
  32
  33 namespace {
  34    void
  35    read_header(const std::string &header, module &m) {
  36       std::istringstream ls(header);
  37       std::string line;
  38
  39       while (getline(ls, line)) {
  40          std::istringstream ts(line);
  41          std::string name, tok;
  42          module::size_t offset;
  43          compat::vector<module::argument> args;
  44
  45          if (!(ts >> name))
  46             continue;
  47
  48          if (!(ts >> offset))
  49             throw build_error("invalid kernel start address");
  50
  51          while (ts >> tok) {
  52             if (tok == "scalar")
  53                args.push_back({ module::argument::scalar, 4 });
  54             else if (tok == "global")
  55                args.push_back({ module::argument::global, 4 });
  56             else if (tok == "local")
  57                args.push_back({ module::argument::local, 4 });
  58             else if (tok == "constant")
  59                args.push_back({ module::argument::constant, 4 });
  60             else if (tok == "image2d_rd")
  61                args.push_back({ module::argument::image2d_rd, 4 });
  62             else if (tok == "image2d_wr")
  63                args.push_back({ module::argument::image2d_wr, 4 });
  64             else if (tok == "image3d_rd")
  65                args.push_back({ module::argument::image3d_rd, 4 });
  66             else if (tok == "image3d_wr")
  67                args.push_back({ module::argument::image3d_wr, 4 });
  68             else if (tok == "sampler")
  69                args.push_back({ module::argument::sampler, 0 });
  70             else
  71                throw build_error("invalid kernel argument");
  72          }
  73
  74          m.syms.push_back({ name, 0, offset, args });
  75       }
  76    }
  77
  78    void
  79    read_body(const char *source, module &m) {
  80       tgsi_token prog[1024];
  81
  82       if (!tgsi_text_translate(source, prog, Elements(prog)))
  83          throw build_error("translate failed");
  84
  85       unsigned sz = tgsi_num_tokens(prog) * sizeof(tgsi_token);
  86       m.secs.push_back({ 0, module::section::text, sz, { (char *)prog, sz } });
  87    }
  88 }
  89
  90 module
  91 clover::compile_program_tgsi(const compat::string &source) {
  92    const char *body = source.find("COMP\n");
  93    module m;
  94
  95    read_header({ source.begin(), body }, m);
  96    read_body(body, m);
  97
  98    return m;
  99 }