compiler.cpp revision 741463e18d8235025de649210e7f88a1b6e7af5a 
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 BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
18// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
19// OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20// 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
31using namespace clover;
32
33namespace {
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
90module
91clover::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}
100