Brian | cc15354 | 2007-02-17 09:15:39 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Mesa 3-D graphics library |
| 3 | * Version: 6.5.3 |
| 4 | * |
| 5 | * Copyright (C) 1999-2007 Brian Paul, Tungsten Graphics, Inc. |
| 6 | * All Rights Reserved. |
| 7 | * |
| 8 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 9 | * copy of this software and associated documentation files (the "Software"), |
| 10 | * to deal in the Software without restriction, including without limitation |
| 11 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 12 | * and/or sell copies of the Software, and to permit persons to whom the |
| 13 | * Software is furnished to do so, subject to the following conditions: |
| 14 | * |
| 15 | * The above copyright notice and this permission notice shall be included |
| 16 | * in all copies or substantial portions 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 MERCHANTABILITY, |
| 20 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 21 | * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
| 22 | * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| 23 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 24 | */ |
| 25 | |
| 26 | /** |
| 27 | * \mainpage |
| 28 | * |
| 29 | * Stand-alone Shading Language compiler. |
| 30 | * Basically, a command-line program which accepts GLSL shaders and emits |
| 31 | * vertex/fragment programs (GPU instructions). |
| 32 | * |
| 33 | * This file is basically just a Mesa device driver but instead of building |
| 34 | * a shared library we build an executable. |
| 35 | * |
| 36 | * We can emit programs in three different formats: |
| 37 | * 1. ARB-style (GL_ARB_vertex/fragment_program) |
| 38 | * 2. NV-style (GL_NV_vertex/fragment_program) |
| 39 | * 3. debug-style (a slightly more sophisticated, internal format) |
| 40 | * |
| 41 | * Note that the ARB and NV program languages can't express all the |
| 42 | * features that might be used by a fragment program (examples being |
| 43 | * uniform and varying vars). So, the ARB/NV programs that are |
| 44 | * emitted aren't always legal programs in those languages. |
| 45 | */ |
| 46 | |
| 47 | |
Brian Paul | 374e7fd | 2008-09-18 13:46:47 -0600 | [diff] [blame] | 48 | #include "main/imports.h" |
| 49 | #include "main/context.h" |
| 50 | #include "main/extensions.h" |
| 51 | #include "main/framebuffer.h" |
| 52 | #include "main/shaders.h" |
Brian | cc15354 | 2007-02-17 09:15:39 -0700 | [diff] [blame] | 53 | #include "shader/shader_api.h" |
| 54 | #include "shader/prog_print.h" |
| 55 | #include "drivers/common/driverfuncs.h" |
Brian | cc15354 | 2007-02-17 09:15:39 -0700 | [diff] [blame] | 56 | #include "tnl/tnl.h" |
| 57 | #include "tnl/t_context.h" |
| 58 | #include "tnl/t_pipeline.h" |
| 59 | #include "swrast/swrast.h" |
| 60 | #include "swrast/s_context.h" |
| 61 | #include "swrast/s_triangle.h" |
| 62 | #include "swrast_setup/swrast_setup.h" |
Brian | bc18ac4 | 2007-02-22 16:29:25 -0700 | [diff] [blame] | 63 | #include "vbo/vbo.h" |
Brian | cc15354 | 2007-02-17 09:15:39 -0700 | [diff] [blame] | 64 | |
| 65 | |
| 66 | static const char *Prog = "glslcompiler"; |
| 67 | |
| 68 | |
| 69 | struct options { |
| 70 | GLboolean LineNumbers; |
| 71 | gl_prog_print_mode Mode; |
| 72 | const char *VertFile; |
| 73 | const char *FragFile; |
| 74 | const char *OutputFile; |
Brian Paul | edd8cb8 | 2009-02-17 15:57:46 -0700 | [diff] [blame^] | 75 | GLboolean Params; |
Brian | cc15354 | 2007-02-17 09:15:39 -0700 | [diff] [blame] | 76 | }; |
| 77 | |
| 78 | static struct options Options; |
| 79 | |
| 80 | |
| 81 | /** |
| 82 | * GLSL compiler driver context. (kind of an artificial thing for now) |
| 83 | */ |
| 84 | struct compiler_context |
| 85 | { |
| 86 | GLcontext MesaContext; |
| 87 | int foo; |
| 88 | }; |
| 89 | |
| 90 | typedef struct compiler_context CompilerContext; |
| 91 | |
| 92 | |
| 93 | |
| 94 | static void |
| 95 | UpdateState(GLcontext *ctx, GLuint new_state) |
| 96 | { |
| 97 | /* easy - just propogate */ |
| 98 | _swrast_InvalidateState( ctx, new_state ); |
| 99 | _swsetup_InvalidateState( ctx, new_state ); |
Brian | cc15354 | 2007-02-17 09:15:39 -0700 | [diff] [blame] | 100 | _tnl_InvalidateState( ctx, new_state ); |
Brian | bc18ac4 | 2007-02-22 16:29:25 -0700 | [diff] [blame] | 101 | _vbo_InvalidateState( ctx, new_state ); |
Brian | cc15354 | 2007-02-17 09:15:39 -0700 | [diff] [blame] | 102 | } |
| 103 | |
| 104 | |
| 105 | |
| 106 | static GLboolean |
| 107 | CreateContext(void) |
| 108 | { |
| 109 | struct dd_function_table ddFuncs; |
| 110 | GLvisual *vis; |
| 111 | GLframebuffer *buf; |
| 112 | GLcontext *ctx; |
| 113 | CompilerContext *cc; |
| 114 | |
| 115 | vis = _mesa_create_visual(GL_TRUE, GL_FALSE, GL_FALSE, /* RGB */ |
| 116 | 8, 8, 8, 8, /* color */ |
| 117 | 0, 0, 0, /* z, stencil */ |
| 118 | 0, 0, 0, 0, 1); /* accum */ |
| 119 | buf = _mesa_create_framebuffer(vis); |
| 120 | |
| 121 | cc = _mesa_calloc(sizeof(*cc)); |
| 122 | if (!vis || !buf || !cc) { |
| 123 | if (vis) |
| 124 | _mesa_destroy_visual(vis); |
| 125 | if (buf) |
| 126 | _mesa_destroy_framebuffer(buf); |
| 127 | return GL_FALSE; |
| 128 | } |
| 129 | |
| 130 | _mesa_init_driver_functions(&ddFuncs); |
| 131 | ddFuncs.GetString = NULL;/*get_string;*/ |
| 132 | ddFuncs.UpdateState = UpdateState; |
| 133 | ddFuncs.GetBufferSize = NULL; |
| 134 | |
| 135 | ctx = &cc->MesaContext; |
| 136 | _mesa_initialize_context(ctx, vis, NULL, &ddFuncs, cc); |
| 137 | _mesa_enable_sw_extensions(ctx); |
| 138 | |
| 139 | if (!_swrast_CreateContext( ctx ) || |
Brian | bc18ac4 | 2007-02-22 16:29:25 -0700 | [diff] [blame] | 140 | !_vbo_CreateContext( ctx ) || |
Brian | cc15354 | 2007-02-17 09:15:39 -0700 | [diff] [blame] | 141 | !_tnl_CreateContext( ctx ) || |
| 142 | !_swsetup_CreateContext( ctx )) { |
| 143 | _mesa_destroy_visual(vis); |
| 144 | _mesa_free_context_data(ctx); |
| 145 | _mesa_free(cc); |
| 146 | return GL_FALSE; |
| 147 | } |
| 148 | TNL_CONTEXT(ctx)->Driver.RunPipeline = _tnl_run_pipeline; |
| 149 | _swsetup_Wakeup( ctx ); |
| 150 | |
| 151 | _mesa_make_current(ctx, buf, buf); |
| 152 | |
| 153 | return GL_TRUE; |
| 154 | } |
| 155 | |
| 156 | |
| 157 | static void |
| 158 | LoadAndCompileShader(GLuint shader, const char *text) |
| 159 | { |
| 160 | GLint stat; |
| 161 | _mesa_ShaderSourceARB(shader, 1, (const GLchar **) &text, NULL); |
| 162 | _mesa_CompileShaderARB(shader); |
| 163 | _mesa_GetShaderiv(shader, GL_COMPILE_STATUS, &stat); |
| 164 | if (!stat) { |
| 165 | GLchar log[1000]; |
| 166 | GLsizei len; |
| 167 | _mesa_GetShaderInfoLog(shader, 1000, &len, log); |
| 168 | fprintf(stderr, "%s: problem compiling shader: %s\n", Prog, log); |
| 169 | exit(1); |
| 170 | } |
| 171 | else { |
| 172 | printf("Shader compiled OK\n"); |
| 173 | } |
| 174 | } |
| 175 | |
| 176 | |
| 177 | /** |
| 178 | * Read a shader from a file. |
| 179 | */ |
| 180 | static void |
| 181 | ReadShader(GLuint shader, const char *filename) |
| 182 | { |
| 183 | const int max = 100*1000; |
| 184 | int n; |
| 185 | char *buffer = (char*) malloc(max); |
| 186 | FILE *f = fopen(filename, "r"); |
| 187 | if (!f) { |
| 188 | fprintf(stderr, "%s: Unable to open shader file %s\n", Prog, filename); |
| 189 | exit(1); |
| 190 | } |
| 191 | |
| 192 | n = fread(buffer, 1, max, f); |
| 193 | /* |
| 194 | printf("%s: read %d bytes from shader file %s\n", Prog, n, filename); |
| 195 | */ |
| 196 | if (n > 0) { |
| 197 | buffer[n] = 0; |
| 198 | LoadAndCompileShader(shader, buffer); |
| 199 | } |
| 200 | |
| 201 | fclose(f); |
| 202 | free(buffer); |
| 203 | } |
| 204 | |
| 205 | |
| 206 | #if 0 |
| 207 | static void |
| 208 | CheckLink(GLuint prog) |
| 209 | { |
| 210 | GLint stat; |
| 211 | _mesa_GetProgramiv(prog, GL_LINK_STATUS, &stat); |
| 212 | if (!stat) { |
| 213 | GLchar log[1000]; |
| 214 | GLsizei len; |
| 215 | _mesa_GetProgramInfoLog(prog, 1000, &len, log); |
| 216 | fprintf(stderr, "%s: Linker error:\n%s\n", Prog, log); |
| 217 | } |
| 218 | else { |
| 219 | fprintf(stderr, "%s: Link success!\n", Prog); |
| 220 | } |
| 221 | } |
| 222 | #endif |
| 223 | |
| 224 | |
| 225 | static void |
| 226 | PrintShaderInstructions(GLuint shader, FILE *f) |
| 227 | { |
| 228 | GET_CURRENT_CONTEXT(ctx); |
| 229 | struct gl_shader *sh = _mesa_lookup_shader(ctx, shader); |
Brian Paul | 1100866 | 2008-10-28 17:03:35 -0600 | [diff] [blame] | 230 | struct gl_program *prog = sh->Program; |
Brian Paul | e33edaf | 2009-02-02 12:24:58 -0700 | [diff] [blame] | 231 | _mesa_fprint_program_opt(stdout, prog, Options.Mode, Options.LineNumbers); |
Brian Paul | edd8cb8 | 2009-02-17 15:57:46 -0700 | [diff] [blame^] | 232 | if (Options.Params) |
| 233 | _mesa_print_program_parameters(ctx, prog); |
Brian | cc15354 | 2007-02-17 09:15:39 -0700 | [diff] [blame] | 234 | } |
| 235 | |
| 236 | |
| 237 | static GLuint |
| 238 | CompileShader(const char *filename, GLenum type) |
| 239 | { |
| 240 | GLuint shader; |
| 241 | |
| 242 | assert(type == GL_FRAGMENT_SHADER || |
| 243 | type == GL_VERTEX_SHADER); |
| 244 | |
| 245 | shader = _mesa_CreateShader(type); |
| 246 | ReadShader(shader, filename); |
| 247 | |
| 248 | return shader; |
| 249 | } |
| 250 | |
| 251 | |
| 252 | static void |
| 253 | Usage(void) |
| 254 | { |
| 255 | printf("Mesa GLSL stand-alone compiler\n"); |
| 256 | printf("Usage:\n"); |
| 257 | printf(" --vs FILE vertex shader input filename\n"); |
| 258 | printf(" --fs FILE fragment shader input filename\n"); |
| 259 | printf(" --arb emit ARB-style instructions (the default)\n"); |
| 260 | printf(" --nv emit NV-style instructions\n"); |
| 261 | printf(" --debug emit debug-style instructions\n"); |
| 262 | printf(" --number, -n emit line numbers\n"); |
| 263 | printf(" --output, -o FILE output filename\n"); |
Brian Paul | edd8cb8 | 2009-02-17 15:57:46 -0700 | [diff] [blame^] | 264 | printf(" --params also emit program parameter info\n"); |
Brian | cc15354 | 2007-02-17 09:15:39 -0700 | [diff] [blame] | 265 | printf(" --help display this information\n"); |
| 266 | } |
| 267 | |
| 268 | |
| 269 | static void |
| 270 | ParseOptions(int argc, char *argv[]) |
| 271 | { |
| 272 | int i; |
| 273 | |
| 274 | Options.LineNumbers = GL_FALSE; |
| 275 | Options.Mode = PROG_PRINT_ARB; |
| 276 | Options.VertFile = NULL; |
| 277 | Options.FragFile = NULL; |
| 278 | Options.OutputFile = NULL; |
Brian Paul | edd8cb8 | 2009-02-17 15:57:46 -0700 | [diff] [blame^] | 279 | Options.Params = GL_FALSE; |
Brian | cc15354 | 2007-02-17 09:15:39 -0700 | [diff] [blame] | 280 | |
Brian | bc18ac4 | 2007-02-22 16:29:25 -0700 | [diff] [blame] | 281 | if (argc == 1) { |
| 282 | Usage(); |
| 283 | exit(0); |
| 284 | } |
| 285 | |
Brian | cc15354 | 2007-02-17 09:15:39 -0700 | [diff] [blame] | 286 | for (i = 1; i < argc; i++) { |
| 287 | if (strcmp(argv[i], "--vs") == 0) { |
| 288 | Options.VertFile = argv[i + 1]; |
| 289 | i++; |
| 290 | } |
| 291 | else if (strcmp(argv[i], "--fs") == 0) { |
| 292 | Options.FragFile = argv[i + 1]; |
| 293 | i++; |
| 294 | } |
| 295 | else if (strcmp(argv[i], "--arb") == 0) { |
| 296 | Options.Mode = PROG_PRINT_ARB; |
| 297 | } |
| 298 | else if (strcmp(argv[i], "--nv") == 0) { |
| 299 | Options.Mode = PROG_PRINT_NV; |
| 300 | } |
| 301 | else if (strcmp(argv[i], "--debug") == 0) { |
| 302 | Options.Mode = PROG_PRINT_DEBUG; |
| 303 | } |
| 304 | else if (strcmp(argv[i], "--number") == 0 || |
| 305 | strcmp(argv[i], "-n") == 0) { |
| 306 | Options.LineNumbers = GL_TRUE; |
| 307 | } |
| 308 | else if (strcmp(argv[i], "--output") == 0 || |
| 309 | strcmp(argv[i], "-o") == 0) { |
| 310 | Options.OutputFile = argv[i + 1]; |
| 311 | i++; |
| 312 | } |
Brian Paul | edd8cb8 | 2009-02-17 15:57:46 -0700 | [diff] [blame^] | 313 | else if (strcmp(argv[i], "--params") == 0) { |
| 314 | Options.Params = GL_TRUE; |
| 315 | } |
Brian | cc15354 | 2007-02-17 09:15:39 -0700 | [diff] [blame] | 316 | else if (strcmp(argv[i], "--help") == 0) { |
| 317 | Usage(); |
| 318 | exit(0); |
| 319 | } |
| 320 | else { |
| 321 | printf("Unknown option: %s\n", argv[i]); |
| 322 | Usage(); |
| 323 | exit(1); |
| 324 | } |
| 325 | } |
| 326 | } |
| 327 | |
| 328 | |
| 329 | int |
| 330 | main(int argc, char *argv[]) |
| 331 | { |
| 332 | GLuint shader = 0; |
| 333 | |
| 334 | if (!CreateContext()) { |
| 335 | fprintf(stderr, "%s: Failed to create compiler context\n", Prog); |
| 336 | exit(1); |
| 337 | } |
| 338 | |
| 339 | ParseOptions(argc, argv); |
| 340 | |
| 341 | if (Options.VertFile) { |
| 342 | shader = CompileShader(Options.VertFile, GL_VERTEX_SHADER); |
| 343 | } |
| 344 | else if (Options.FragFile) { |
| 345 | shader = CompileShader(Options.FragFile, GL_FRAGMENT_SHADER); |
| 346 | } |
| 347 | |
| 348 | if (shader) { |
| 349 | if (Options.OutputFile) { |
| 350 | fclose(stdout); |
| 351 | /*stdout =*/ freopen(Options.OutputFile, "w", stdout); |
| 352 | } |
| 353 | if (stdout) { |
| 354 | PrintShaderInstructions(shader, stdout); |
| 355 | } |
| 356 | if (Options.OutputFile) { |
| 357 | fclose(stdout); |
| 358 | } |
| 359 | } |
| 360 | |
| 361 | return 0; |
| 362 | } |