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      1 /*
      2  * Copyright (c) 2015 Etnaviv Project
      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, sub license,
      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 (including the
     12  * next paragraph) shall be included in all copies or substantial portions
     13  * of the 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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
     21  * DEALINGS IN THE SOFTWARE.
     22  *
     23  * Authors:
     24  *    Rob Clark <robclark (at) freedesktop.org>
     25  *    Christian Gmeiner <christian.gmeiner (at) gmail.com>
     26  */
     27 
     28 #include <err.h>
     29 #include <fcntl.h>
     30 #include <sys/mman.h>
     31 #include <sys/stat.h>
     32 #include <unistd.h>
     33 
     34 #include "tgsi/tgsi_dump.h"
     35 #include "tgsi/tgsi_parse.h"
     36 #include "tgsi/tgsi_text.h"
     37 
     38 #include "etnaviv_compiler.h"
     39 #include "etnaviv_debug.h"
     40 #include "etnaviv_internal.h"
     41 
     42 static const struct etna_specs specs_gc2000 = {
     43    .vs_need_z_div = 0,
     44    .has_sin_cos_sqrt = 1,
     45    .has_sign_floor_ceil = 1,
     46    .vertex_sampler_offset = 8,
     47    .vertex_output_buffer_size = 512,
     48    .vertex_cache_size = 16,
     49    .shader_core_count = 4,
     50    .max_instructions = 512,
     51    .max_varyings = 12,
     52    .max_registers = 64,
     53    .max_vs_uniforms = 168,
     54    .max_ps_uniforms = 128,
     55    .num_constants = 168,
     56 };
     57 
     58 static int
     59 read_file(const char *filename, void **ptr, size_t *size)
     60 {
     61    int fd, ret;
     62    struct stat st;
     63 
     64    *ptr = MAP_FAILED;
     65 
     66    fd = open(filename, O_RDONLY);
     67    if (fd == -1) {
     68       warnx("couldn't open `%s'", filename);
     69       return 1;
     70    }
     71 
     72    ret = fstat(fd, &st);
     73    if (ret)
     74       errx(1, "couldn't stat `%s'", filename);
     75 
     76    *size = st.st_size;
     77    *ptr = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
     78    if (*ptr == MAP_FAILED)
     79       errx(1, "couldn't map `%s'", filename);
     80 
     81    close(fd);
     82 
     83    return 0;
     84 }
     85 
     86 static void
     87 print_usage(void)
     88 {
     89    printf("Usage: etnaviv_compiler [OPTIONS]... FILE\n");
     90    printf("    --verbose         - verbose compiler/debug messages\n");
     91    printf("    --help            - show this message\n");
     92 }
     93 
     94 int
     95 main(int argc, char **argv)
     96 {
     97    int ret = 0, n = 1;
     98    const char *filename;
     99    struct tgsi_token toks[65536];
    100    struct tgsi_parse_context parse;
    101    struct etna_shader *shader_obj;
    102    void *ptr;
    103    size_t size;
    104 
    105    etna_mesa_debug = ETNA_DBG_MSGS;
    106 
    107    while (n < argc) {
    108       if (!strcmp(argv[n], "--verbose")) {
    109          etna_mesa_debug |= ETNA_DBG_COMPILER_MSGS;
    110          n++;
    111          continue;
    112       }
    113 
    114       if (!strcmp(argv[n], "--help")) {
    115          print_usage();
    116          return 0;
    117       }
    118 
    119       break;
    120    }
    121 
    122    filename = argv[n];
    123 
    124    ret = read_file(filename, &ptr, &size);
    125    if (ret) {
    126       print_usage();
    127       return ret;
    128    }
    129 
    130    debug_printf("%s\n", (char *)ptr);
    131 
    132    if (!tgsi_text_translate(ptr, toks, ARRAY_SIZE(toks)))
    133       errx(1, "could not parse `%s'", filename);
    134 
    135    tgsi_parse_init(&parse, toks);
    136 
    137    shader_obj = etna_compile_shader(&specs_gc2000, toks);
    138 
    139    if (shader_obj == NULL) {
    140       fprintf(stderr, "compiler failed!\n");
    141       return 1;
    142    }
    143 
    144    etna_dump_shader(shader_obj);
    145    etna_destroy_shader(shader_obj);
    146 }
    147