From 06143ea09411aa283ac3633bfbfa4326584cd952 Mon Sep 17 00:00:00 2001 From: Ian Romanick Date: Wed, 30 Jun 2010 16:27:22 -0700 Subject: [PATCH] glsl2: Conditionally define preprocessor tokens for optional extensions The only optional extension currently supported by the compiler is GL_EXT_texture_array. --- src/glsl/glcpp/glcpp-parse.y | 10 +++++++++- src/glsl/glcpp/glcpp.c | 5 +---- src/glsl/glcpp/glcpp.h | 7 +++++-- src/glsl/glcpp/pp.c | 5 +++-- src/glsl/glsl_parser_extras.h | 3 ++- src/glsl/main.cpp | 4 +++- src/mesa/shader/ir_to_mesa.cpp | 3 ++- 7 files changed, 25 insertions(+), 12 deletions(-) diff --git a/src/glsl/glcpp/glcpp-parse.y b/src/glsl/glcpp/glcpp-parse.y index d4cb006bbcd..e5544fe29b8 100644 --- a/src/glsl/glcpp/glcpp-parse.y +++ b/src/glsl/glcpp/glcpp-parse.y @@ -28,6 +28,7 @@ #include #include "glcpp.h" +#include "main/mtypes.h" #define glcpp_print(stream, str) stream = talloc_strdup_append(stream, str) #define glcpp_printf(stream, fmt, args...) \ @@ -894,7 +895,7 @@ yyerror (YYLTYPE *locp, glcpp_parser_t *parser, const char *error) } glcpp_parser_t * -glcpp_parser_create (void) +glcpp_parser_create (const struct gl_extensions *extensions) { glcpp_parser_t *parser; token_t *tok; @@ -932,6 +933,13 @@ glcpp_parser_create (void) _token_list_append(list, tok); _define_object_macro(parser, NULL, "GL_ARB_texture_rectangle", list); + if ((extensions != NULL) && extensions->EXT_texture_array) { + list = _token_list_create(parser); + _token_list_append(list, tok); + _define_object_macro(parser, NULL, + "GL_EXT_texture_array", list); + } + talloc_unlink(parser, tok); return parser; diff --git a/src/glsl/glcpp/glcpp.c b/src/glsl/glcpp/glcpp.c index cc87e14950b..a245cb54060 100644 --- a/src/glsl/glcpp/glcpp.c +++ b/src/glsl/glcpp/glcpp.c @@ -68,16 +68,13 @@ load_text_file(void *ctx, const char *file_name) return text; } -int -preprocess(void *talloc_ctx, const char **shader, char **info_log); - int main (void) { void *ctx = talloc(NULL, void*); const char *shader = load_text_file(ctx, NULL); char *info_log = talloc_strdup(ctx, ""); - int ret = preprocess(ctx, &shader, &info_log); + int ret = preprocess(ctx, &shader, &info_log, NULL); printf("%s", shader); fprintf(stderr, "%s", info_log); diff --git a/src/glsl/glcpp/glcpp.h b/src/glsl/glcpp/glcpp.h index 2cfa98d2b1d..fc9511a67a8 100644 --- a/src/glsl/glcpp/glcpp.h +++ b/src/glsl/glcpp/glcpp.h @@ -158,8 +158,10 @@ struct glcpp_parser { int error; }; +struct gl_extensions; + glcpp_parser_t * -glcpp_parser_create (void); +glcpp_parser_create (const struct gl_extensions *extensions); int glcpp_parser_parse (glcpp_parser_t *parser); @@ -168,7 +170,8 @@ void glcpp_parser_destroy (glcpp_parser_t *parser); int -preprocess(void *talloc_ctx, const char **shader, char **info_log); +preprocess(void *talloc_ctx, const char **shader, char **info_log, + const struct gl_extensions *extensions); /* Functions for writing to the info log */ diff --git a/src/glsl/glcpp/pp.c b/src/glsl/glcpp/pp.c index a25b7b72a6b..1ce829a2c97 100644 --- a/src/glsl/glcpp/pp.c +++ b/src/glsl/glcpp/pp.c @@ -134,10 +134,11 @@ remove_line_continuations(glcpp_parser_t *ctx, const char *shader) } extern int -preprocess(void *talloc_ctx, const char **shader, char **info_log) +preprocess(void *talloc_ctx, const char **shader, char **info_log, + const struct gl_extensions *extensions) { int errors; - glcpp_parser_t *parser = glcpp_parser_create (); + glcpp_parser_t *parser = glcpp_parser_create (extensions); *shader = remove_line_continuations(parser, *shader); glcpp_lex_set_source_string (parser, *shader); diff --git a/src/glsl/glsl_parser_extras.h b/src/glsl/glsl_parser_extras.h index 3aeba83cc52..dc3d23ac545 100644 --- a/src/glsl/glsl_parser_extras.h +++ b/src/glsl/glsl_parser_extras.h @@ -115,7 +115,8 @@ extern void _mesa_glsl_warning(const YYLTYPE *locp, const char *fmt, ...); extern "C" { -extern int preprocess(void *ctx, const char **shader, char **info_log); +extern int preprocess(void *ctx, const char **shader, char **info_log, + const struct gl_extensions *extensions); } extern void _mesa_glsl_lexer_ctor(struct _mesa_glsl_parse_state *state, diff --git a/src/glsl/main.cpp b/src/glsl/main.cpp index c833c9cde6d..deaab7e0335 100644 --- a/src/glsl/main.cpp +++ b/src/glsl/main.cpp @@ -109,6 +109,7 @@ void compile_shader(struct gl_shader *shader) { struct _mesa_glsl_parse_state *state; + struct gl_extensions ext; state = talloc_zero(talloc_parent(shader), struct _mesa_glsl_parse_state); @@ -127,11 +128,12 @@ compile_shader(struct gl_shader *shader) state->loop_or_switch_nesting = NULL; state->ARB_texture_rectangle_enable = true; + memset(&ext, 0, sizeof(ext)); state->Const.MaxDrawBuffers = 2; state->Const.MaxTextureCoords = 4; const char *source = shader->Source; - state->error = preprocess(state, &source, &state->info_log); + state->error = preprocess(state, &source, &state->info_log, &ext); if (!state->error) { _mesa_glsl_lexer_ctor(state, source); diff --git a/src/mesa/shader/ir_to_mesa.cpp b/src/mesa/shader/ir_to_mesa.cpp index 14abf602af2..918004c79f1 100644 --- a/src/mesa/shader/ir_to_mesa.cpp +++ b/src/mesa/shader/ir_to_mesa.cpp @@ -1713,7 +1713,8 @@ _mesa_glsl_compile_shader(GLcontext *ctx, struct gl_shader *shader) state->Const.MaxTextureCoords = ctx->Const.MaxTextureCoordUnits; const char *source = shader->Source; - state->error = preprocess(state, &source, &state->info_log); + state->error = preprocess(state, &source, &state->info_log, + &ctx->Extensions); if (!state->error) { _mesa_glsl_lexer_ctor(state, source); -- 2.30.2