2 * Copyright © 2008, 2009 Intel Corporation
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:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
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 NONINFRINGEMENT. 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.
26 #include "glsl_parser_extras.h"
27 #include "ir_optimization.h"
28 #include "ir_print_visitor.h"
30 #include "loop_analysis.h"
31 #include "standalone_scaffolding.h"
34 initialize_context(struct gl_context
*ctx
, gl_api api
)
36 initialize_context_to_defaults(ctx
, api
);
38 /* GLSL 1.30 isn't fully supported, but we need to advertise 1.30 so that
39 * the built-in functions for 1.30 can be built.
41 ctx
->Const
.GLSLVersion
= 130;
43 ctx
->Const
.MaxClipPlanes
= 8;
44 ctx
->Const
.MaxDrawBuffers
= 2;
46 /* More than the 1.10 minimum to appease parser tests taken from
47 * apps that (hopefully) already checked the number of coords.
49 ctx
->Const
.MaxTextureCoordUnits
= 4;
51 ctx
->Driver
.NewShader
= _mesa_new_shader
;
54 /* Returned string will have 'ctx' as its ralloc owner. */
56 load_text_file(void *ctx
, const char *file_name
)
60 size_t total_read
= 0;
61 FILE *fp
= fopen(file_name
, "rb");
67 fseek(fp
, 0L, SEEK_END
);
69 fseek(fp
, 0L, SEEK_SET
);
71 text
= (char *) ralloc_size(ctx
, size
+ 1);
74 size_t bytes
= fread(text
+ total_read
,
75 1, size
- total_read
, fp
);
76 if (bytes
< size
- total_read
) {
87 } while (total_read
< size
);
89 text
[total_read
] = '\0';
103 const struct option compiler_opts
[] = {
104 { "glsl-es", 0, &glsl_es
, 1 },
105 { "dump-ast", 0, &dump_ast
, 1 },
106 { "dump-hir", 0, &dump_hir
, 1 },
107 { "dump-lir", 0, &dump_lir
, 1 },
108 { "link", 0, &do_link
, 1 },
113 * \brief Print proper usage and exit with failure.
116 usage_fail(const char *name
)
120 "usage: %s [options] <file.vert | file.geom | file.frag>\n"
122 "Possible options are:\n";
123 printf(header
, name
, name
);
124 for (const struct option
*o
= compiler_opts
; o
->name
!= 0; ++o
) {
125 printf(" --%s\n", o
->name
);
132 compile_shader(struct gl_context
*ctx
, struct gl_shader
*shader
)
134 struct _mesa_glsl_parse_state
*state
=
135 new(shader
) _mesa_glsl_parse_state(ctx
, shader
->Type
, shader
);
137 const char *source
= shader
->Source
;
138 state
->error
= preprocess(state
, &source
, &state
->info_log
,
139 state
->extensions
, ctx
->API
) != 0;
142 _mesa_glsl_lexer_ctor(state
, source
);
143 _mesa_glsl_parse(state
);
144 _mesa_glsl_lexer_dtor(state
);
148 foreach_list_const(n
, &state
->translation_unit
) {
149 ast_node
*ast
= exec_node_data(ast_node
, n
, link
);
155 shader
->ir
= new(shader
) exec_list
;
156 if (!state
->error
&& !state
->translation_unit
.is_empty())
157 _mesa_ast_to_hir(shader
->ir
, state
);
159 /* Print out the unoptimized IR. */
160 if (!state
->error
&& dump_hir
) {
161 validate_ir_tree(shader
->ir
);
162 _mesa_print_ir(shader
->ir
, state
);
165 /* Optimization passes */
166 if (!state
->error
&& !shader
->ir
->is_empty()) {
169 progress
= do_common_optimization(shader
->ir
, false, false, 32);
172 validate_ir_tree(shader
->ir
);
176 /* Print out the resulting IR */
177 if (!state
->error
&& dump_lir
) {
178 _mesa_print_ir(shader
->ir
, state
);
181 shader
->symbols
= state
->symbols
;
182 shader
->CompileStatus
= !state
->error
;
183 shader
->Version
= state
->language_version
;
184 memcpy(shader
->builtins_to_link
, state
->builtins_to_link
,
185 sizeof(shader
->builtins_to_link
[0]) * state
->num_builtins_to_link
);
186 shader
->num_builtins_to_link
= state
->num_builtins_to_link
;
189 ralloc_free(shader
->InfoLog
);
191 shader
->InfoLog
= state
->info_log
;
193 /* Retain any live IR, but trash the rest. */
194 reparent_ir(shader
->ir
, shader
);
202 main(int argc
, char **argv
)
204 int status
= EXIT_SUCCESS
;
205 struct gl_context local_ctx
;
206 struct gl_context
*ctx
= &local_ctx
;
210 while ((c
= getopt_long(argc
, argv
, "", compiler_opts
, &idx
)) != -1)
217 initialize_context(ctx
, (glsl_es
) ? API_OPENGLES2
: API_OPENGL
);
219 struct gl_shader_program
*whole_program
;
221 whole_program
= rzalloc (NULL
, struct gl_shader_program
);
222 assert(whole_program
!= NULL
);
223 whole_program
->InfoLog
= ralloc_strdup(whole_program
, "");
225 for (/* empty */; argc
> optind
; optind
++) {
226 whole_program
->Shaders
=
227 reralloc(whole_program
, whole_program
->Shaders
,
228 struct gl_shader
*, whole_program
->NumShaders
+ 1);
229 assert(whole_program
->Shaders
!= NULL
);
231 struct gl_shader
*shader
= rzalloc(whole_program
, gl_shader
);
233 whole_program
->Shaders
[whole_program
->NumShaders
] = shader
;
234 whole_program
->NumShaders
++;
236 const unsigned len
= strlen(argv
[optind
]);
240 const char *const ext
= & argv
[optind
][len
- 5];
241 if (strncmp(".vert", ext
, 5) == 0)
242 shader
->Type
= GL_VERTEX_SHADER
;
243 else if (strncmp(".geom", ext
, 5) == 0)
244 shader
->Type
= GL_GEOMETRY_SHADER
;
245 else if (strncmp(".frag", ext
, 5) == 0)
246 shader
->Type
= GL_FRAGMENT_SHADER
;
250 shader
->Source
= load_text_file(whole_program
, argv
[optind
]);
251 if (shader
->Source
== NULL
) {
252 printf("File \"%s\" does not exist.\n", argv
[optind
]);
256 compile_shader(ctx
, shader
);
258 if (!shader
->CompileStatus
) {
259 printf("Info log for %s:\n%s\n", argv
[optind
], shader
->InfoLog
);
260 status
= EXIT_FAILURE
;
265 if ((status
== EXIT_SUCCESS
) && do_link
) {
266 link_shaders(ctx
, whole_program
);
267 status
= (whole_program
->LinkStatus
) ? EXIT_SUCCESS
: EXIT_FAILURE
;
269 if (strlen(whole_program
->InfoLog
) > 0)
270 printf("Info log for linking:\n%s\n", whole_program
->InfoLog
);
273 for (unsigned i
= 0; i
< MESA_SHADER_TYPES
; i
++)
274 ralloc_free(whole_program
->_LinkedShaders
[i
]);
276 ralloc_free(whole_program
);
277 _mesa_glsl_release_types();
278 _mesa_glsl_release_functions();