src/glsl/apps/compile.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 VMware, Inc.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #include <stdio.h>
  29 #include <stdlib.h>
  30 #include <string.h>
  31 #include <assert.h>
  32 #include "../pp/sl_pp_public.h"
  33 #include "../cl/sl_cl_parse.h"
  34
  35
  36 static void
  37 usage(void)
  38 {
  39    printf("Usage:\n");
  40    printf("  compile fragment|vertex|geometry <source> <output>\n");
  41 }
  42
  43 int
  44 main(int argc,
  45      char *argv[])
  46 {
  47    FILE *in;
  48    long size;
  49    char *inbuf;
  50    struct sl_pp_purify_options options;
  51    char errmsg[100] = "";
  52    struct sl_pp_context *context;
  53    unsigned int version;
  54    FILE *out;
  55    unsigned char *outbytes;
  56    unsigned int cboutbytes;
  57    unsigned int shader_type;
  58
  59    if (argc != 4) {
  60       usage();
  61       return 1;
  62    }
  63
  64    if (!strcmp(argv[1], "fragment")) {
  65       shader_type = 1;
  66    } else if (!strcmp(argv[1], "vertex")) {
  67       shader_type = 2;
  68    } else if (!strcmp(argv[1], "geometry")) {
  69       shader_type = 3;
  70    } else {
  71       usage();
  72       return 1;
  73    }
  74
  75    in = fopen(argv[2], "rb");
  76    if (!in) {
  77       printf("Could not open `%s' for read.\n", argv[2]);
  78       usage();
  79       return 1;
  80    }
  81
  82    fseek(in, 0, SEEK_END);
  83    size = ftell(in);
  84    assert(size != -1);
  85    if (size == -1) {
  86       return 1;
  87    }
  88    fseek(in, 0, SEEK_SET);
  89
  90    out = fopen(argv[3], "w");
  91    if (!out) {
  92       fclose(in);
  93       printf("Could not open `%s' for write.\n", argv[3]);
  94       usage();
  95       return 1;
  96    }
  97
  98    inbuf = malloc(size + 1);
  99    if (!inbuf) {
 100       fprintf(out, "$OOMERROR\n");
 101
 102       fclose(out);
 103       fclose(in);
 104       printf("Out of memory.\n");
 105       return 0;
 106    }
 107
 108    if (fread(inbuf, 1, size, in) != size) {
 109       fprintf(out, "$READERROR\n");
 110
 111       free(inbuf);
 112       fclose(out);
 113       fclose(in);
 114       printf("Could not read from `%s'.\n", argv[2]);
 115       return 0;
 116    }
 117    inbuf[size] = '\0';
 118
 119    fclose(in);
 120
 121    memset(&options, 0, sizeof(options));
 122
 123    context = sl_pp_context_create(inbuf, &options);
 124    if (!context) {
 125       fprintf(out, "$CONTEXERROR\n");
 126
 127       free(inbuf);
 128       fclose(out);
 129       printf("Could not create parse context.\n");
 130       return 0;
 131    }
 132
 133    if (sl_pp_version(context, &version)) {
 134       fprintf(out, "$ERROR: `%s'\n", sl_pp_context_error_message(context));
 135
 136       printf("Error: %s\n", sl_pp_context_error_message(context));
 137       sl_pp_context_destroy(context);
 138       free(inbuf);
 139       fclose(out);
 140       return 0;
 141    }
 142
 143    if (sl_pp_context_add_extension(context, "GL_ARB_draw_buffers") ||
 144        sl_pp_context_add_extension(context, "GL_ARB_texture_rectangle")) {
 145       fprintf(out, "$ERROR: `%s'\n", sl_pp_context_error_message(context));
 146
 147       printf("Error: %s\n", sl_pp_context_error_message(context));
 148       sl_pp_context_destroy(context);
 149       free(inbuf);
 150       fclose(out);
 151       return 0;
 152    }
 153
 154    if (sl_cl_compile(context, shader_type, 1, &outbytes, &cboutbytes, errmsg, sizeof(errmsg)) == 0) {
 155       unsigned int i;
 156       unsigned int line = 0;
 157
 158       fprintf(out, "\n/* DO NOT EDIT - THIS FILE IS AUTOMATICALLY GENERATED FROM THE FOLLOWING FILE: */");
 159       fprintf(out, "\n/* %s */", argv[2]);
 160       fprintf(out, "\n\n");
 161
 162       for (i = 0; i < cboutbytes; i++) {
 163          unsigned int a;
 164
 165          if (outbytes[i] < 10) {
 166             a = 1;
 167          } else if (outbytes[i] < 100) {
 168             a = 2;
 169          } else {
 170             a = 3;
 171          }
 172          if (i < cboutbytes - 1) {
 173             a++;
 174          }
 175          if (line + a >= 100) {
 176             fprintf (out, "\n");
 177             line = 0;
 178          }
 179          line += a;
 180          fprintf (out, "%u", outbytes[i]);
 181          if (i < cboutbytes - 1) {
 182             fprintf (out, ",");
 183          }
 184       }
 185       fprintf (out, "\n");
 186       free(outbytes);
 187    } else {
 188       fprintf(out, "$SYNTAXERROR: `%s'\n", errmsg);
 189
 190       printf("Error: %s\n", errmsg);
 191    }
 192
 193    sl_pp_context_destroy(context);
 194    free(inbuf);
 195    fclose(out);
 196    return 0;
 197 }