diff options
Diffstat (limited to 'src/glsl')
35 files changed, 8723 insertions, 0 deletions
diff --git a/src/glsl/Makefile b/src/glsl/Makefile new file mode 100644 index 00000000000..ca7f2d2ac7d --- /dev/null +++ b/src/glsl/Makefile @@ -0,0 +1,15 @@ +# src/glsl/Makefile + +TOP = ../.. + +include $(TOP)/configs/current + +SUBDIRS = pp cl apps + +default install clean: + @for dir in $(SUBDIRS) ; do \ + if [ -d $$dir ] ; then \ + (cd $$dir && $(MAKE) $@) || exit 1; \ + fi \ + done + diff --git a/src/glsl/Makefile.template b/src/glsl/Makefile.template new file mode 100644 index 00000000000..974987a0a04 --- /dev/null +++ b/src/glsl/Makefile.template @@ -0,0 +1,50 @@ +# src/glsl/Makefile.template + +# Template makefile for glsl libraries. +# +# Usage: +# The minimum that the including makefile needs to define +# is TOP, LIBNAME and one of of the *_SOURCES. +# +# Optional defines: +# LIBRARY_INCLUDES are appended to the list of includes directories. +# LIBRARY_DEFINES is not used for makedepend, but for compilation. + + +### Basic defines ### + +OBJECTS = $(C_SOURCES:.c=.o) + +INCLUDES = \ + -I. \ + $(LIBRARY_INCLUDES) + + +##### TARGETS ##### + +default: depend lib$(LIBNAME).a + +lib$(LIBNAME).a: $(OBJECTS) Makefile $(TOP)/src/glsl/Makefile.template + $(MKLIB) -o $(LIBNAME) -static $(OBJECTS) + +depend: $(C_SOURCES) + rm -f depend + touch depend + $(MKDEP) $(MKDEP_OPTIONS) $(INCLUDES) $(C_SOURCES) 2> /dev/null + +# Remove .o and backup files +clean: + rm -f $(OBJECTS) lib$(LIBNAME).a depend depend.bak + +# Dummy target +install: + @echo -n "" + + +##### RULES ##### + +.c.o: + $(CC) -c $(INCLUDES) $(CFLAGS) $(LIBRARY_DEFINES) $< -o $@ + +-include depend + diff --git a/src/glsl/SConscript b/src/glsl/SConscript new file mode 100644 index 00000000000..6f1f81b199a --- /dev/null +++ b/src/glsl/SConscript @@ -0,0 +1,68 @@ +import common + +Import('*') + +env = env.Clone() + +sources = [ + 'pp/sl_pp_context.c', + 'pp/sl_pp_define.c', + 'pp/sl_pp_dict.c', + 'pp/sl_pp_error.c', + 'pp/sl_pp_expression.c', + 'pp/sl_pp_extension.c', + 'pp/sl_pp_if.c', + 'pp/sl_pp_line.c', + 'pp/sl_pp_macro.c', + 'pp/sl_pp_pragma.c', + 'pp/sl_pp_process.c', + 'pp/sl_pp_purify.c', + 'pp/sl_pp_token.c', + 'pp/sl_pp_version.c', + 'cl/sl_cl_parse.c', +] + +glsl = env.StaticLibrary( + target = 'glsl', + source = sources, +) + +Export('glsl') + +env = env.Clone() + +if env['platform'] == 'windows': + env.PrependUnique(LIBS = [ + 'user32', + ]) + +env.Prepend(LIBS = [glsl]) + +env.Program( + target = 'purify', + source = ['apps/purify.c'], +) + +env.Program( + target = 'tokenise', + source = ['apps/tokenise.c'], +) + +env.Program( + target = 'version', + source = ['apps/version.c'], +) + +env.Program( + target = 'process', + source = ['apps/process.c'], +) + +glsl_compile = env.Program( + target = 'compile', + source = ['apps/compile.c'], +) + +if env['platform'] == common.default_platform: + # Only export the GLSL compiler when building for the host platform + Export('glsl_compile') diff --git a/src/glsl/apps/Makefile b/src/glsl/apps/Makefile new file mode 100644 index 00000000000..39a0df7fea5 --- /dev/null +++ b/src/glsl/apps/Makefile @@ -0,0 +1,43 @@ +# src/glsl/apps/Makefile + +TOP = ../../.. + +include $(TOP)/configs/current + +LIBS = \ + $(TOP)/src/glsl/pp/libglslpp.a \ + $(TOP)/src/glsl/cl/libglslcl.a + +SOURCES = \ + compile.c \ + process.c \ + purify.c \ + tokenise.c \ + version.c + +APPS = $(SOURCES:%.c=%) + +INCLUDES = -I. + + +##### RULES ##### + +.SUFFIXES: +.SUFFIXES: .c + +.c: + $(APP_CC) $(INCLUDES) $(CFLAGS) $(LDFLAGS) $< $(LIBS) -o $@ + +.c.o: + $(APP_CC) -c $(INCLUDES) $(CFLAGS) $(DEFINES) $< -o $@ + + +##### TARGETS ##### + +default: $(APPS) + +install: + +clean: + -rm -f $(APPS) + -rm -f *.o diff --git a/src/glsl/apps/compile.c b/src/glsl/apps/compile.c new file mode 100644 index 00000000000..b1165420fb8 --- /dev/null +++ b/src/glsl/apps/compile.c @@ -0,0 +1,234 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <assert.h> +#include "../pp/sl_pp_public.h" +#include "../cl/sl_cl_parse.h" + + +static void +usage(void) +{ + printf("Usage:\n"); + printf(" compile fragment|vertex <source> <output>\n"); +} + +int +main(int argc, + char *argv[]) +{ + FILE *in; + long size; + char *inbuf; + struct sl_pp_purify_options options; + char errmsg[100] = ""; + struct sl_pp_context *context; + struct sl_pp_token_info *tokens; + unsigned int version; + unsigned int tokens_eaten; + struct sl_pp_token_info *outtokens; + FILE *out; + unsigned int i, j; + unsigned char *outbytes; + unsigned int cboutbytes; + unsigned int shader_type; + + if (argc != 4) { + usage(); + return 1; + } + + if (!strcmp(argv[1], "fragment")) { + shader_type = 1; + } else if (!strcmp(argv[1], "vertex")) { + shader_type = 2; + } else { + usage(); + return 1; + } + + in = fopen(argv[2], "rb"); + if (!in) { + printf("Could not open `%s' for read.\n", argv[2]); + usage(); + return 1; + } + + fseek(in, 0, SEEK_END); + size = ftell(in); + fseek(in, 0, SEEK_SET); + + out = fopen(argv[3], "w"); + if (!out) { + fclose(in); + printf("Could not open `%s' for write.\n", argv[3]); + usage(); + return 1; + } + + inbuf = malloc(size + 1); + if (!inbuf) { + fprintf(out, "$OOMERROR\n"); + + fclose(out); + fclose(in); + printf("Out of memory.\n"); + return 0; + } + + if (fread(inbuf, 1, size, in) != size) { + fprintf(out, "$READERROR\n"); + + free(inbuf); + fclose(out); + fclose(in); + printf("Could not read from `%s'.\n", argv[2]); + return 0; + } + inbuf[size] = '\0'; + + fclose(in); + + memset(&options, 0, sizeof(options)); + + context = sl_pp_context_create(); + if (!context) { + fprintf(out, "$CONTEXERROR\n"); + + free(inbuf); + fclose(out); + printf("Could not create parse context.\n"); + return 0; + } + + if (sl_pp_tokenise(context, inbuf, &options, &tokens)) { + fprintf(out, "$ERROR: `%s'\n", sl_pp_context_error_message(context)); + + printf("Error: %s.\n", sl_pp_context_error_message(context)); + sl_pp_context_destroy(context); + free(inbuf); + fclose(out); + return 0; + } + + free(inbuf); + + if (sl_pp_version(context, tokens, &version, &tokens_eaten)) { + fprintf(out, "$ERROR: `%s'\n", sl_pp_context_error_message(context)); + + printf("Error: %s\n", sl_pp_context_error_message(context)); + sl_pp_context_destroy(context); + free(tokens); + fclose(out); + return 0; + } + + if (sl_pp_context_add_extension(context, "ARB_draw_buffers", "GL_ARB_draw_buffers") || + sl_pp_context_add_extension(context, "ARB_texture_rectangle", "GL_ARB_texture_rectangle")) { + fprintf(out, "$ERROR: `%s'\n", sl_pp_context_error_message(context)); + + printf("Error: %s\n", sl_pp_context_error_message(context)); + sl_pp_context_destroy(context); + free(tokens); + fclose(out); + return 0; + } + + if (sl_pp_process(context, &tokens[tokens_eaten], &outtokens)) { + fprintf(out, "$ERROR: `%s'\n", sl_pp_context_error_message(context)); + + printf("Error: %s\n", sl_pp_context_error_message(context)); + sl_pp_context_destroy(context); + free(tokens); + fclose(out); + return 0; + } + + free(tokens); + + for (i = j = 0; outtokens[i].token != SL_PP_EOF; i++) { + switch (outtokens[i].token) { + case SL_PP_NEWLINE: + case SL_PP_EXTENSION_REQUIRE: + case SL_PP_EXTENSION_ENABLE: + case SL_PP_EXTENSION_WARN: + case SL_PP_EXTENSION_DISABLE: + case SL_PP_LINE: + break; + default: + outtokens[j++] = outtokens[i]; + } + } + outtokens[j] = outtokens[i]; + + if (sl_cl_compile(context, outtokens, shader_type, 1, &outbytes, &cboutbytes, errmsg, sizeof(errmsg)) == 0) { + unsigned int i; + unsigned int line = 0; + + fprintf(out, "\n/* DO NOT EDIT - THIS FILE IS AUTOMATICALLY GENERATED FROM THE FOLLOWING FILE: */"); + fprintf(out, "\n/* %s */", argv[2]); + fprintf(out, "\n\n"); + + for (i = 0; i < cboutbytes; i++) { + unsigned int a; + + if (outbytes[i] < 10) { + a = 1; + } else if (outbytes[i] < 100) { + a = 2; + } else { + a = 3; + } + if (i < cboutbytes - 1) { + a++; + } + if (line + a >= 100) { + fprintf (out, "\n"); + line = 0; + } + line += a; + fprintf (out, "%u", outbytes[i]); + if (i < cboutbytes - 1) { + fprintf (out, ","); + } + } + fprintf (out, "\n"); + free(outbytes); + } else { + fprintf(out, "$SYNTAXERROR: `%s'\n", errmsg); + + printf("Error: %s\n", errmsg); + } + + sl_pp_context_destroy(context); + free(outtokens); + fclose(out); + return 0; +} diff --git a/src/glsl/apps/process.c b/src/glsl/apps/process.c new file mode 100644 index 00000000000..d7bc16577e0 --- /dev/null +++ b/src/glsl/apps/process.c @@ -0,0 +1,394 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <assert.h> +#include "../pp/sl_pp_public.h" + + +int +main(int argc, + char *argv[]) +{ + FILE *in; + long size; + char *inbuf; + struct sl_pp_purify_options options; + struct sl_pp_context *context; + struct sl_pp_token_info *tokens; + unsigned int version; + unsigned int tokens_eaten; + struct sl_pp_token_info *outtokens; + FILE *out; + unsigned int i; + + if (argc != 3) { + return 1; + } + + in = fopen(argv[1], "rb"); + if (!in) { + return 1; + } + + fseek(in, 0, SEEK_END); + size = ftell(in); + fseek(in, 0, SEEK_SET); + + out = fopen(argv[2], "wb"); + if (!out) { + fclose(in); + return 1; + } + + inbuf = malloc(size + 1); + if (!inbuf) { + fprintf(out, "$OOMERROR\n"); + + fclose(out); + fclose(in); + return 1; + } + + if (fread(inbuf, 1, size, in) != size) { + fprintf(out, "$READERROR\n"); + + free(inbuf); + fclose(out); + fclose(in); + return 1; + } + inbuf[size] = '\0'; + + fclose(in); + + memset(&options, 0, sizeof(options)); + + context = sl_pp_context_create(); + if (!context) { + fprintf(out, "$CONTEXERROR\n"); + + free(inbuf); + fclose(out); + return 1; + } + + if (sl_pp_tokenise(context, inbuf, &options, &tokens)) { + fprintf(out, "$ERROR: `%s'\n", sl_pp_context_error_message(context)); + + sl_pp_context_destroy(context); + free(inbuf); + fclose(out); + return 1; + } + + free(inbuf); + + if (sl_pp_version(context, tokens, &version, &tokens_eaten)) { + fprintf(out, "$ERROR: `%s'\n", sl_pp_context_error_message(context)); + + sl_pp_context_destroy(context); + free(tokens); + fclose(out); + return -1; + } + + if (sl_pp_context_add_extension(context, "ARB_draw_buffers", "GL_ARB_draw_buffers") || + sl_pp_context_add_extension(context, "ARB_texture_rectangle", "GL_ARB_texture_rectangle")) { + fprintf(out, "$ERROR: `%s'\n", sl_pp_context_error_message(context)); + + printf("Error: %s\n", sl_pp_context_error_message(context)); + sl_pp_context_destroy(context); + free(tokens); + fclose(out); + return 0; + } + + if (sl_pp_context_add_predefined(context, "__GLSL_PP_PREDEFINED_MACRO_TEST", "1")) { + fprintf(out, "$ERROR: `%s'\n", sl_pp_context_error_message(context)); + + printf("Error: %s\n", sl_pp_context_error_message(context)); + sl_pp_context_destroy(context); + free(tokens); + fclose(out); + return 0; + } + + if (sl_pp_process(context, &tokens[tokens_eaten], &outtokens)) { + fprintf(out, "$ERROR: `%s'\n", sl_pp_context_error_message(context)); + + sl_pp_context_destroy(context); + free(tokens); + fclose(out); + return -1; + } + + free(tokens); + + for (i = 0; outtokens[i].token != SL_PP_EOF; i++) { + switch (outtokens[i].token) { + case SL_PP_NEWLINE: + fprintf(out, "\n"); + break; + + case SL_PP_COMMA: + fprintf(out, ", "); + break; + + case SL_PP_SEMICOLON: + fprintf(out, "; "); + break; + + case SL_PP_LBRACE: + fprintf(out, "{ "); + break; + + case SL_PP_RBRACE: + fprintf(out, "} "); + break; + + case SL_PP_LPAREN: + fprintf(out, "( "); + break; + + case SL_PP_RPAREN: + fprintf(out, ") "); + break; + + case SL_PP_LBRACKET: + fprintf(out, "[ "); + break; + + case SL_PP_RBRACKET: + fprintf(out, "] "); + break; + + case SL_PP_DOT: + fprintf(out, ". "); + break; + + case SL_PP_INCREMENT: + fprintf(out, "++ "); + break; + + case SL_PP_ADDASSIGN: + fprintf(out, "+= "); + break; + + case SL_PP_PLUS: + fprintf(out, "+ "); + break; + + case SL_PP_DECREMENT: + fprintf(out, "-- "); + break; + + case SL_PP_SUBASSIGN: + fprintf(out, "-= "); + break; + + case SL_PP_MINUS: + fprintf(out, "- "); + break; + + case SL_PP_BITNOT: + fprintf(out, "~ "); + break; + + case SL_PP_NOTEQUAL: + fprintf(out, "!= "); + break; + + case SL_PP_NOT: + fprintf(out, "! "); + break; + + case SL_PP_MULASSIGN: + fprintf(out, "*= "); + break; + + case SL_PP_STAR: + fprintf(out, "* "); + break; + + case SL_PP_DIVASSIGN: + fprintf(out, "/= "); + break; + + case SL_PP_SLASH: + fprintf(out, "/ "); + break; + + case SL_PP_MODASSIGN: + fprintf(out, "%%= "); + break; + + case SL_PP_MODULO: + fprintf(out, "%% "); + break; + + case SL_PP_LSHIFTASSIGN: + fprintf(out, "<<= "); + break; + + case SL_PP_LSHIFT: + fprintf(out, "<< "); + break; + + case SL_PP_LESSEQUAL: + fprintf(out, "<= "); + break; + + case SL_PP_LESS: + fprintf(out, "< "); + break; + + case SL_PP_RSHIFTASSIGN: + fprintf(out, ">>= "); + break; + + case SL_PP_RSHIFT: + fprintf(out, ">> "); + break; + + case SL_PP_GREATEREQUAL: + fprintf(out, ">= "); + break; + + case SL_PP_GREATER: + fprintf(out, "> "); + break; + + case SL_PP_EQUAL: + fprintf(out, "== "); + break; + + case SL_PP_ASSIGN: + fprintf(out, "= "); + break; + + case SL_PP_AND: + fprintf(out, "&& "); + break; + + case SL_PP_BITANDASSIGN: + fprintf(out, "&= "); + break; + + case SL_PP_BITAND: + fprintf(out, "& "); + break; + + case SL_PP_XOR: + fprintf(out, "^^ "); + break; + + case SL_PP_BITXORASSIGN: + fprintf(out, "^= "); + break; + + case SL_PP_BITXOR: + fprintf(out, "^ "); + break; + + case SL_PP_OR: + fprintf(out, "|| "); + break; + + case SL_PP_BITORASSIGN: + fprintf(out, "|= "); + break; + + case SL_PP_BITOR: + fprintf(out, "| "); + break; + + case SL_PP_QUESTION: + fprintf(out, "? "); + break; + + case SL_PP_COLON: + fprintf(out, ": "); + break; + + case SL_PP_IDENTIFIER: + fprintf(out, "%s ", sl_pp_context_cstr(context, outtokens[i].data.identifier)); + break; + + case SL_PP_UINT: + fprintf(out, "%s ", sl_pp_context_cstr(context, outtokens[i].data._uint)); + break; + + case SL_PP_FLOAT: + fprintf(out, "%s ", sl_pp_context_cstr(context, outtokens[i].data._float)); + break; + + case SL_PP_OTHER: + fprintf(out, "%c", outtokens[i].data.other); + break; + + case SL_PP_PRAGMA_OPTIMIZE: + fprintf(out, "#pragma optimize(%s)", outtokens[i].data.pragma ? "on" : "off"); + break; + + case SL_PP_PRAGMA_DEBUG: + fprintf(out, "#pragma debug(%s)", outtokens[i].data.pragma ? "on" : "off"); + break; + + case SL_PP_EXTENSION_REQUIRE: + fprintf(out, "#extension %s : require", sl_pp_context_cstr(context, outtokens[i].data.extension)); + break; + + case SL_PP_EXTENSION_ENABLE: + fprintf(out, "#extension %s : enable", sl_pp_context_cstr(context, outtokens[i].data.extension)); + break; + + case SL_PP_EXTENSION_WARN: + fprintf(out, "#extension %s : warn", sl_pp_context_cstr(context, outtokens[i].data.extension)); + break; + + case SL_PP_EXTENSION_DISABLE: + fprintf(out, "#extension %s : disable", sl_pp_context_cstr(context, outtokens[i].data.extension)); + break; + + case SL_PP_LINE: + fprintf(out, "#line %u %u", outtokens[i].data.line.lineno, outtokens[i].data.line.fileno); + break; + + default: + assert(0); + } + } + + sl_pp_context_destroy(context); + free(outtokens); + fclose(out); + + return 0; +} diff --git a/src/glsl/apps/purify.c b/src/glsl/apps/purify.c new file mode 100644 index 00000000000..8c01f4fc6a3 --- /dev/null +++ b/src/glsl/apps/purify.c @@ -0,0 +1,105 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include "../pp/sl_pp_public.h" + + +int +main(int argc, + char *argv[]) +{ + FILE *in; + long size; + char *inbuf; + struct sl_pp_purify_options options; + char *outbuf; + char errmsg[100] = ""; + unsigned int errline = 0; + FILE *out; + + if (argc != 3) { + return 1; + } + + in = fopen(argv[1], "rb"); + if (!in) { + return 1; + } + + fseek(in, 0, SEEK_END); + size = ftell(in); + fseek(in, 0, SEEK_SET); + + out = fopen(argv[2], "wb"); + if (!out) { + fclose(in); + return 1; + } + + inbuf = malloc(size + 1); + if (!inbuf) { + fprintf(out, "$OOMERROR\n"); + + fclose(out); + fclose(in); + return 1; + } + + if (fread(inbuf, 1, size, in) != size) { + fprintf(out, "$READERROR\n"); + + free(inbuf); + fclose(out); + fclose(in); + return 1; + } + inbuf[size] = '\0'; + + fclose(in); + + memset(&options, 0, sizeof(options)); + + if (sl_pp_purify(inbuf, &options, &outbuf, errmsg, sizeof(errmsg), &errline)) { + fprintf(out, "$PURIFYERROR %u: %s\n", errline, errmsg); + + free(inbuf); + fclose(out); + return 1; + } + + free(inbuf); + + fwrite(outbuf, 1, strlen(outbuf), out); + + free(outbuf); + fclose(out); + + return 0; +} diff --git a/src/glsl/apps/tokenise.c b/src/glsl/apps/tokenise.c new file mode 100644 index 00000000000..91368c32a45 --- /dev/null +++ b/src/glsl/apps/tokenise.c @@ -0,0 +1,333 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <assert.h> +#include "../pp/sl_pp_public.h" + + +int +main(int argc, + char *argv[]) +{ + FILE *in; + long size; + char *inbuf; + struct sl_pp_purify_options options; + struct sl_pp_context *context; + struct sl_pp_token_info *tokens; + FILE *out; + unsigned int i; + + if (argc != 3) { + return 1; + } + + in = fopen(argv[1], "rb"); + if (!in) { + return 1; + } + + fseek(in, 0, SEEK_END); + size = ftell(in); + fseek(in, 0, SEEK_SET); + + out = fopen(argv[2], "wb"); + if (!out) { + fclose(in); + return 1; + } + + inbuf = malloc(size + 1); + if (!inbuf) { + fprintf(out, "$OOMERROR\n"); + + fclose(out); + fclose(in); + return 1; + } + + if (fread(inbuf, 1, size, in) != size) { + fprintf(out, "$READERROR\n"); + + free(inbuf); + fclose(out); + fclose(in); + return 1; + } + inbuf[size] = '\0'; + + fclose(in); + + memset(&options, 0, sizeof(options)); + + context = sl_pp_context_create(); + if (!context) { + fprintf(out, "$CONTEXERROR\n"); + + free(inbuf); + fclose(out); + return 1; + } + + if (sl_pp_tokenise(context, inbuf, &options, &tokens)) { + fprintf(out, "$ERROR: `%s'\n", sl_pp_context_error_message(context)); + + sl_pp_context_destroy(context); + free(inbuf); + fclose(out); + return 1; + } + + free(inbuf); + + for (i = 0; tokens[i].token != SL_PP_EOF; i++) { + switch (tokens[i].token) { + case SL_PP_WHITESPACE: + break; + + case SL_PP_NEWLINE: + fprintf(out, "\n"); + break; + + case SL_PP_HASH: + fprintf(out, "# "); + break; + + case SL_PP_COMMA: + fprintf(out, ", "); + break; + + case SL_PP_SEMICOLON: + fprintf(out, "; "); + break; + + case SL_PP_LBRACE: + fprintf(out, "{ "); + break; + + case SL_PP_RBRACE: + fprintf(out, "} "); + break; + + case SL_PP_LPAREN: + fprintf(out, "( "); + break; + + case SL_PP_RPAREN: + fprintf(out, ") "); + break; + + case SL_PP_LBRACKET: + fprintf(out, "[ "); + break; + + case SL_PP_RBRACKET: + fprintf(out, "] "); + break; + + case SL_PP_DOT: + fprintf(out, ". "); + break; + + case SL_PP_INCREMENT: + fprintf(out, "++ "); + break; + + case SL_PP_ADDASSIGN: + fprintf(out, "+= "); + break; + + case SL_PP_PLUS: + fprintf(out, "+ "); + break; + + case SL_PP_DECREMENT: + fprintf(out, "-- "); + break; + + case SL_PP_SUBASSIGN: + fprintf(out, "-= "); + break; + + case SL_PP_MINUS: + fprintf(out, "- "); + break; + + case SL_PP_BITNOT: + fprintf(out, "~ "); + break; + + case SL_PP_NOTEQUAL: + fprintf(out, "!= "); + break; + + case SL_PP_NOT: + fprintf(out, "! "); + break; + + case SL_PP_MULASSIGN: + fprintf(out, "*= "); + break; + + case SL_PP_STAR: + fprintf(out, "* "); + break; + + case SL_PP_DIVASSIGN: + fprintf(out, "/= "); + break; + + case SL_PP_SLASH: + fprintf(out, "/ "); + break; + + case SL_PP_MODASSIGN: + fprintf(out, "%%= "); + break; + + case SL_PP_MODULO: + fprintf(out, "%% "); + break; + + case SL_PP_LSHIFTASSIGN: + fprintf(out, "<<= "); + break; + + case SL_PP_LSHIFT: + fprintf(out, "<< "); + break; + + case SL_PP_LESSEQUAL: + fprintf(out, "<= "); + break; + + case SL_PP_LESS: + fprintf(out, "< "); + break; + + case SL_PP_RSHIFTASSIGN: + fprintf(out, ">>= "); + break; + + case SL_PP_RSHIFT: + fprintf(out, ">> "); + break; + + case SL_PP_GREATEREQUAL: + fprintf(out, ">= "); + break; + + case SL_PP_GREATER: + fprintf(out, "> "); + break; + + case SL_PP_EQUAL: + fprintf(out, "== "); + break; + + case SL_PP_ASSIGN: + fprintf(out, "= "); + break; + + case SL_PP_AND: + fprintf(out, "&& "); + break; + + case SL_PP_BITANDASSIGN: + fprintf(out, "&= "); + break; + + case SL_PP_BITAND: + fprintf(out, "& "); + break; + + case SL_PP_XOR: + fprintf(out, "^^ "); + break; + + case SL_PP_BITXORASSIGN: + fprintf(out, "^= "); + break; + + case SL_PP_BITXOR: + fprintf(out, "^ "); + break; + + case SL_PP_OR: + fprintf(out, "|| "); + break; + + case SL_PP_BITORASSIGN: + fprintf(out, "|= "); + break; + + case SL_PP_BITOR: + fprintf(out, "| "); + break; + + case SL_PP_QUESTION: + fprintf(out, "? "); + break; + + case SL_PP_COLON: + fprintf(out, ": "); + break; + + case SL_PP_IDENTIFIER: + fprintf(out, "%s ", sl_pp_context_cstr(context, tokens[i].data.identifier)); + break; + + case SL_PP_UINT: + fprintf(out, "(%s) ", sl_pp_context_cstr(context, tokens[i].data._uint)); + break; + + case SL_PP_FLOAT: + fprintf(out, "(%s) ", sl_pp_context_cstr(context, tokens[i].data._float)); + break; + + case SL_PP_OTHER: + if (tokens[i].data.other == '\'') { + fprintf(out, "'\\'' "); + } else { + fprintf(out, "'%c' ", tokens[i].data.other); + } + break; + + default: + assert(0); + } + } + + sl_pp_context_destroy(context); + free(tokens); + fclose(out); + + return 0; +} diff --git a/src/glsl/apps/version.c b/src/glsl/apps/version.c new file mode 100644 index 00000000000..6f77f230ca9 --- /dev/null +++ b/src/glsl/apps/version.c @@ -0,0 +1,131 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <assert.h> +#include "../pp/sl_pp_public.h" + + +int +main(int argc, + char *argv[]) +{ + FILE *in; + long size; + char *inbuf; + struct sl_pp_purify_options options; + struct sl_pp_context *context; + struct sl_pp_token_info *tokens; + unsigned int version; + unsigned int tokens_eaten; + FILE *out; + + if (argc != 3) { + return 1; + } + + in = fopen(argv[1], "rb"); + if (!in) { + return 1; + } + + fseek(in, 0, SEEK_END); + size = ftell(in); + fseek(in, 0, SEEK_SET); + + out = fopen(argv[2], "wb"); + if (!out) { + fclose(in); + return 1; + } + + inbuf = malloc(size + 1); + if (!inbuf) { + fprintf(out, "$OOMERROR\n"); + + fclose(out); + fclose(in); + return 1; + } + + if (fread(inbuf, 1, size, in) != size) { + fprintf(out, "$READERROR\n"); + + free(inbuf); + fclose(out); + fclose(in); + return 1; + } + inbuf[size] = '\0'; + + fclose(in); + + memset(&options, 0, sizeof(options)); + + context = sl_pp_context_create(); + if (!context) { + fprintf(out, "$CONTEXERROR\n"); + + free(inbuf); + fclose(out); + return 1; + } + + if (sl_pp_tokenise(context, inbuf, &options, &tokens)) { + fprintf(out, "$ERROR: `%s'\n", sl_pp_context_error_message(context)); + + sl_pp_context_destroy(context); + free(inbuf); + fclose(out); + return 1; + } + + free(inbuf); + + if (sl_pp_version(context, tokens, &version, &tokens_eaten)) { + fprintf(out, "$ERROR: `%s'\n", sl_pp_context_error_message(context)); + + sl_pp_context_destroy(context); + free(tokens); + fclose(out); + return -1; + } + + sl_pp_context_destroy(context); + free(tokens); + + fprintf(out, + "%u\n%u\n", + version, + tokens_eaten); + + fclose(out); + + return 0; +} diff --git a/src/glsl/cl/Makefile b/src/glsl/cl/Makefile new file mode 100644 index 00000000000..04a52df8c33 --- /dev/null +++ b/src/glsl/cl/Makefile @@ -0,0 +1,13 @@ +#src/glsl/cl/Makefile + +TOP = ../../.. + +include $(TOP)/configs/current + +LIBNAME = glslcl + +C_SOURCES = \ + sl_cl_parse.c + +include ../Makefile.template + diff --git a/src/glsl/cl/sl_cl_parse.c b/src/glsl/cl/sl_cl_parse.c new file mode 100644 index 00000000000..a9db65c7ad7 --- /dev/null +++ b/src/glsl/cl/sl_cl_parse.c @@ -0,0 +1,2714 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include <assert.h> +#include <stdlib.h> +#include <string.h> +#include "../pp/sl_pp_public.h" +#include "sl_cl_parse.h" + + +/* revision number - increment after each change affecting emitted output */ +#define REVISION 5 + +/* external declaration (or precision or invariant stmt) */ +#define EXTERNAL_NULL 0 +#define EXTERNAL_FUNCTION_DEFINITION 1 +#define EXTERNAL_DECLARATION 2 +#define DEFAULT_PRECISION 3 +#define INVARIANT_STMT 4 + +/* precision */ +#define PRECISION_DEFAULT 0 +#define PRECISION_LOW 1 +#define PRECISION_MEDIUM 2 +#define PRECISION_HIGH 3 + +/* declaration */ +#define DECLARATION_FUNCTION_PROTOTYPE 1 +#define DECLARATION_INIT_DECLARATOR_LIST 2 + +/* function type */ +#define FUNCTION_ORDINARY 0 +#define FUNCTION_CONSTRUCTOR 1 +#define FUNCTION_OPERATOR 2 + +/* function call type */ +#define FUNCTION_CALL_NONARRAY 0 +#define FUNCTION_CALL_ARRAY 1 + +/* operator type */ +#define OPERATOR_ADDASSIGN 1 +#define OPERATOR_SUBASSIGN 2 +#define OPERATOR_MULASSIGN 3 +#define OPERATOR_DIVASSIGN 4 +/*#define OPERATOR_MODASSIGN 5*/ +/*#define OPERATOR_LSHASSIGN 6*/ +/*#define OPERATOR_RSHASSIGN 7*/ +/*#define OPERATOR_ORASSIGN 8*/ +/*#define OPERATOR_XORASSIGN 9*/ +/*#define OPERATOR_ANDASSIGN 10*/ +#define OPERATOR_LOGICALXOR 11 +/*#define OPERATOR_BITOR 12*/ +/*#define OPERATOR_BITXOR 13*/ +/*#define OPERATOR_BITAND 14*/ +#define OPERATOR_LESS 15 +#define OPERATOR_GREATER 16 +#define OPERATOR_LESSEQUAL 17 +#define OPERATOR_GREATEREQUAL 18 +/*#define OPERATOR_LSHIFT 19*/ +/*#define OPERATOR_RSHIFT 20*/ +#define OPERATOR_MULTIPLY 21 +#define OPERATOR_DIVIDE 22 +/*#define OPERATOR_MODULUS 23*/ +#define OPERATOR_INCREMENT 24 +#define OPERATOR_DECREMENT 25 +#define OPERATOR_PLUS 26 +#define OPERATOR_MINUS 27 +/*#define OPERATOR_COMPLEMENT 28*/ +#define OPERATOR_NOT 29 + +/* init declarator list */ +#define DECLARATOR_NONE 0 +#define DECLARATOR_NEXT 1 + +/* variable declaration */ +#define VARIABLE_NONE 0 +#define VARIABLE_IDENTIFIER 1 +#define VARIABLE_INITIALIZER 2 +#define VARIABLE_ARRAY_EXPLICIT 3 +#define VARIABLE_ARRAY_UNKNOWN 4 + +/* type qualifier */ +#define TYPE_QUALIFIER_NONE 0 +#define TYPE_QUALIFIER_CONST 1 +#define TYPE_QUALIFIER_ATTRIBUTE 2 +#define TYPE_QUALIFIER_VARYING 3 +#define TYPE_QUALIFIER_UNIFORM 4 +#define TYPE_QUALIFIER_FIXEDOUTPUT 5 +#define TYPE_QUALIFIER_FIXEDINPUT 6 + +/* invariant qualifier */ +#define TYPE_VARIANT 90 +#define TYPE_INVARIANT 91 + +/* centroid qualifier */ +#define TYPE_CENTER 95 +#define TYPE_CENTROID 96 + +/* type specifier */ +#define TYPE_SPECIFIER_VOID 0 +#define TYPE_SPECIFIER_BOOL 1 +#define TYPE_SPECIFIER_BVEC2 2 +#define TYPE_SPECIFIER_BVEC3 3 +#define TYPE_SPECIFIER_BVEC4 4 +#define TYPE_SPECIFIER_INT 5 +#define TYPE_SPECIFIER_IVEC2 6 +#define TYPE_SPECIFIER_IVEC3 7 +#define TYPE_SPECIFIER_IVEC4 8 +#define TYPE_SPECIFIER_FLOAT 9 +#define TYPE_SPECIFIER_VEC2 10 +#define TYPE_SPECIFIER_VEC3 11 +#define TYPE_SPECIFIER_VEC4 12 +#define TYPE_SPECIFIER_MAT2 13 +#define TYPE_SPECIFIER_MAT3 14 +#define TYPE_SPECIFIER_MAT4 15 +#define TYPE_SPECIFIER_SAMPLER1D 16 +#define TYPE_SPECIFIER_SAMPLER2D 17 +#define TYPE_SPECIFIER_SAMPLER3D 18 +#define TYPE_SPECIFIER_SAMPLERCUBE 19 +#define TYPE_SPECIFIER_SAMPLER1DSHADOW 20 +#define TYPE_SPECIFIER_SAMPLER2DSHADOW 21 +#define TYPE_SPECIFIER_SAMPLER2DRECT 22 +#define TYPE_SPECIFIER_SAMPLER2DRECTSHADOW 23 +#define TYPE_SPECIFIER_STRUCT 24 +#define TYPE_SPECIFIER_TYPENAME 25 + +/* OpenGL 2.1 */ +#define TYPE_SPECIFIER_MAT23 26 +#define TYPE_SPECIFIER_MAT32 27 +#define TYPE_SPECIFIER_MAT24 28 +#define TYPE_SPECIFIER_MAT42 29 +#define TYPE_SPECIFIER_MAT34 30 +#define TYPE_SPECIFIER_MAT43 31 + +/* type specifier array */ +#define TYPE_SPECIFIER_NONARRAY 0 +#define TYPE_SPECIFIER_ARRAY 1 + +/* structure field */ +#define FIELD_NONE 0 +#define FIELD_NEXT 1 +#define FIELD_ARRAY 2 + +/* operation */ +#define OP_END 0 +#define OP_BLOCK_BEGIN_NO_NEW_SCOPE 1 +#define OP_BLOCK_BEGIN_NEW_SCOPE 2 +#define OP_DECLARE 3 +#define OP_ASM 4 +#define OP_BREAK 5 +#define OP_CONTINUE 6 +#define OP_DISCARD 7 +#define OP_RETURN 8 +#define OP_EXPRESSION 9 +#define OP_IF 10 +#define OP_WHILE 11 +#define OP_DO 12 +#define OP_FOR 13 +#define OP_PUSH_VOID 14 +#define OP_PUSH_BOOL 15 +#define OP_PUSH_INT 16 +#define OP_PUSH_FLOAT 17 +#define OP_PUSH_IDENTIFIER 18 +#define OP_SEQUENCE 19 +#define OP_ASSIGN 20 +#define OP_ADDASSIGN 21 +#define OP_SUBASSIGN 22 +#define OP_MULASSIGN 23 +#define OP_DIVASSIGN 24 +/*#define OP_MODASSIGN 25*/ +/*#define OP_LSHASSIGN 26*/ +/*#define OP_RSHASSIGN 27*/ +/*#define OP_ORASSIGN 28*/ +/*#define OP_XORASSIGN 29*/ +/*#define OP_ANDASSIGN 30*/ +#define OP_SELECT 31 +#define OP_LOGICALOR 32 +#define OP_LOGICALXOR 33 +#define OP_LOGICALAND 34 +/*#define OP_BITOR 35*/ +/*#define OP_BITXOR 36*/ +/*#define OP_BITAND 37*/ +#define OP_EQUAL 38 +#define OP_NOTEQUAL 39 +#define OP_LESS 40 +#define OP_GREATER 41 +#define OP_LESSEQUAL 42 +#define OP_GREATEREQUAL 43 +/*#define OP_LSHIFT 44*/ +/*#define OP_RSHIFT 45*/ +#define OP_ADD 46 +#define OP_SUBTRACT 47 +#define OP_MULTIPLY 48 +#define OP_DIVIDE 49 +/*#define OP_MODULUS 50*/ +#define OP_PREINCREMENT 51 +#define OP_PREDECREMENT 52 +#define OP_PLUS 53 +#define OP_MINUS 54 +/*#define OP_COMPLEMENT 55*/ +#define OP_NOT 56 +#define OP_SUBSCRIPT 57 +#define OP_CALL 58 +#define OP_FIELD 59 +#define OP_POSTINCREMENT 60 +#define OP_POSTDECREMENT 61 +#define OP_PRECISION 62 +#define OP_METHOD 63 + +/* parameter qualifier */ +#define PARAM_QUALIFIER_IN 0 +#define PARAM_QUALIFIER_OUT 1 +#define PARAM_QUALIFIER_INOUT 2 + +/* function parameter */ +#define PARAMETER_NONE 0 +#define PARAMETER_NEXT 1 + +/* function parameter array presence */ +#define PARAMETER_ARRAY_NOT_PRESENT 0 +#define PARAMETER_ARRAY_PRESENT 1 + + +struct parse_dict { + int _void; + int _float; + int _int; + int _bool; + int vec2; + int vec3; + int vec4; + int bvec2; + int bvec3; + int bvec4; + int ivec2; + int ivec3; + int ivec4; + int mat2; + int mat3; + int mat4; + int mat2x3; + int mat3x2; + int mat2x4; + int mat4x2; + int mat3x4; + int mat4x3; + int sampler1D; + int sampler2D; + int sampler3D; + int samplerCube; + int sampler1DShadow; + int sampler2DShadow; + int sampler2DRect; + int sampler2DRectShadow; + + int invariant; + + int centroid; + + int precision; + int lowp; + int mediump; + int highp; + + int _const; + int attribute; + int varying; + int uniform; + int __fixed_output; + int __fixed_input; + + int in; + int out; + int inout; + + int _struct; + + int __constructor; + int __operator; + int ___asm; + + int _if; + int _else; + int _for; + int _while; + int _do; + + int _continue; + int _break; + int _return; + int discard; + + int _false; + int _true; +}; + + +struct parse_context { + struct sl_pp_context *context; + const struct sl_pp_token_info *input; + + struct parse_dict dict; + + unsigned char *out_buf; + unsigned int out_cap; + + unsigned int shader_type; + unsigned int parsing_builtin; + + char error[256]; +}; + + +struct parse_state { + unsigned int in; + unsigned int out; +}; + + +static __inline unsigned int +_emit(struct parse_context *ctx, + unsigned int *out, + unsigned char b) +{ + if (*out == ctx->out_cap) { + ctx->out_cap += 4096; + ctx->out_buf = (unsigned char *)realloc(ctx->out_buf, ctx->out_cap * sizeof(unsigned char)); + } + ctx->out_buf[*out] = b; + return (*out)++; +} + + +static void +_update(struct parse_context *ctx, + unsigned int out, + unsigned char b) +{ + ctx->out_buf[out] = b; +} + + +static void +_error(struct parse_context *ctx, + char *msg) +{ + if (ctx->error[0] == '\0') { + strcpy(ctx->error, msg); + } +} + + +static int +_parse_token(struct parse_context *ctx, + enum sl_pp_token token, + struct parse_state *ps) +{ + if (ctx->input[ps->in].token == token) { + ps->in++; + return 0; + } + return -1; +} + + +static int +_parse_id(struct parse_context *ctx, + int id, + struct parse_state *ps) +{ + if (ctx->input[ps->in].token == SL_PP_IDENTIFIER && + ctx->input[ps->in].data.identifier == id) { + ps->in++; + return 0; + } + return -1; +} + + +static int +_parse_identifier(struct parse_context *ctx, + struct parse_state *ps) +{ + if (ctx->input[ps->in].token == SL_PP_IDENTIFIER) { + const char *cstr = sl_pp_context_cstr(ctx->context, ctx->input[ps->in].data.identifier); + + do { + _emit(ctx, &ps->out, *cstr); + } while (*cstr++); + ps->in++; + return 0; + } + return -1; +} + + +static int +_parse_float(struct parse_context *ctx, + struct parse_state *ps) +{ + if (ctx->input[ps->in].token == SL_PP_FLOAT) { + const char *cstr = sl_pp_context_cstr(ctx->context, ctx->input[ps->in].data._float); + + _emit(ctx, &ps->out, 1); + do { + _emit(ctx, &ps->out, *cstr); + } while (*cstr++); + ps->in++; + return 0; + } + return -1; +} + + +static int +_parse_uint(struct parse_context *ctx, + struct parse_state *ps) +{ + if (ctx->input[ps->in].token == SL_PP_UINT) { + const char *cstr = sl_pp_context_cstr(ctx->context, ctx->input[ps->in].data._uint); + + _emit(ctx, &ps->out, 1); + do { + _emit(ctx, &ps->out, *cstr); + } while (*cstr++); + ps->in++; + return 0; + } + return -1; +} + + +/**************************************/ + + +static int +_parse_unary_expression(struct parse_context *ctx, + struct parse_state *ps); + +static int +_parse_conditional_expression(struct parse_context *ctx, + struct parse_state *ps); + + +static int +_parse_constant_expression(struct parse_context *ctx, + struct parse_state *ps); + + +static int +_parse_primary_expression(struct parse_context *ctx, + struct parse_state *ps); + + +static int +_parse_statement(struct parse_context *ctx, + struct parse_state *ps); + + +static int +_parse_type_specifier(struct parse_context *ctx, + struct parse_state *ps); + + +static int +_parse_declaration(struct parse_context *ctx, + struct parse_state *ps); + + +static int +_parse_statement_list(struct parse_context *ctx, + struct parse_state *ps); + + +static int +_parse_assignment_expression(struct parse_context *ctx, + struct parse_state *ps); + + +static int +_parse_precision(struct parse_context *ctx, + struct parse_state *ps); + + +static int +_parse_overriden_operator(struct parse_context *ctx, + struct parse_state *ps) +{ + unsigned int op; + + if (_parse_token(ctx, SL_PP_INCREMENT, ps) == 0) { + op = OPERATOR_INCREMENT; + } else if (_parse_token(ctx, SL_PP_ADDASSIGN, ps) == 0) { + op = OPERATOR_ADDASSIGN; + } else if (_parse_token(ctx, SL_PP_PLUS, ps) == 0) { + op = OPERATOR_PLUS; + } else if (_parse_token(ctx, SL_PP_DECREMENT, ps) == 0) { + op = OPERATOR_DECREMENT; + } else if (_parse_token(ctx, SL_PP_SUBASSIGN, ps) == 0) { + op = OPERATOR_SUBASSIGN; + } else if (_parse_token(ctx, SL_PP_MINUS, ps) == 0) { + op = OPERATOR_MINUS; + } else if (_parse_token(ctx, SL_PP_NOT, ps) == 0) { + op = OPERATOR_NOT; + } else if (_parse_token(ctx, SL_PP_MULASSIGN, ps) == 0) { + op = OPERATOR_MULASSIGN; + } else if (_parse_token(ctx, SL_PP_STAR, ps) == 0) { + op = OPERATOR_MULTIPLY; + } else if (_parse_token(ctx, SL_PP_DIVASSIGN, ps) == 0) { + op = OPERATOR_DIVASSIGN; + } else if (_parse_token(ctx, SL_PP_SLASH, ps) == 0) { + op = OPERATOR_DIVIDE; + } else if (_parse_token(ctx, SL_PP_LESSEQUAL, ps) == 0) { + op = OPERATOR_LESSEQUAL; + } else if (_parse_token(ctx, SL_PP_LESS, ps) == 0) { + op = OPERATOR_LESS; + } else if (_parse_token(ctx, SL_PP_GREATEREQUAL, ps) == 0) { + op = OPERATOR_GREATEREQUAL; + } else if (_parse_token(ctx, SL_PP_GREATER, ps) == 0) { + op = OPERATOR_GREATER; + } else if (_parse_token(ctx, SL_PP_XOR, ps) == 0) { + op = OPERATOR_LOGICALXOR; + } else { + return -1; + } + + _emit(ctx, &ps->out, op); + return 0; +} + + +static int +_parse_function_decl_identifier(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + unsigned int e = _emit(ctx, &p.out, 0); + + if (ctx->parsing_builtin && _parse_id(ctx, ctx->dict.__constructor, &p) == 0) { + _update(ctx, e, FUNCTION_CONSTRUCTOR); + *ps = p; + return 0; + } + + if (ctx->parsing_builtin && _parse_id(ctx, ctx->dict.__operator, &p) == 0) { + _update(ctx, e, FUNCTION_OPERATOR); + if (_parse_overriden_operator(ctx, &p) == 0) { + *ps = p; + return 0; + } + return -1; + } + + if (_parse_identifier(ctx, &p) == 0) { + _update(ctx, e, FUNCTION_ORDINARY); + *ps = p; + return 0; + } + + return -1; +} + + +static int +_parse_invariant_qualifier(struct parse_context *ctx, + struct parse_state *ps) +{ + if (_parse_id(ctx, ctx->dict.invariant, ps)) { + return -1; + } + _emit(ctx, &ps->out, TYPE_INVARIANT); + return 0; +} + + +static int +_parse_centroid_qualifier(struct parse_context *ctx, + struct parse_state *ps) +{ + if (_parse_id(ctx, ctx->dict.centroid, ps)) { + return -1; + } + _emit(ctx, &ps->out, TYPE_CENTROID); + return 0; +} + + +static int +_parse_type_qualifier(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + unsigned int e = _emit(ctx, &p.out, 0); + int id; + + if (ctx->input[p.in].token != SL_PP_IDENTIFIER) { + return -1; + } + id = ctx->input[p.in].data.identifier; + + if (id == ctx->dict._const) { + _update(ctx, e, TYPE_QUALIFIER_CONST); + } else if (ctx->shader_type == 2 && id == ctx->dict.attribute) { + _update(ctx, e, TYPE_QUALIFIER_ATTRIBUTE); + } else if (id == ctx->dict.varying) { + _update(ctx, e, TYPE_QUALIFIER_VARYING); + } else if (id == ctx->dict.uniform) { + _update(ctx, e, TYPE_QUALIFIER_UNIFORM); + } else if (ctx->parsing_builtin && id == ctx->dict.__fixed_output) { + _update(ctx, e, TYPE_QUALIFIER_FIXEDOUTPUT); + } else if (ctx->parsing_builtin && id == ctx->dict.__fixed_input) { + _update(ctx, e, TYPE_QUALIFIER_FIXEDINPUT); + } else { + return -1; + } + _parse_token(ctx, SL_PP_IDENTIFIER, &p); + *ps = p; + return 0; +} + + +static int +_parse_struct_declarator(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + unsigned int e; + + if (_parse_identifier(ctx, &p)) { + return -1; + } + e = _emit(ctx, &p.out, FIELD_NONE); + *ps = p; + + if (_parse_token(ctx, SL_PP_LBRACKET, &p)) { + return 0; + } + if (_parse_constant_expression(ctx, &p)) { + _error(ctx, "expected constant integral expression"); + return -1; + } + if (_parse_token(ctx, SL_PP_RBRACKET, &p)) { + _error(ctx, "expected `]'"); + return -1; + } + _update(ctx, e, FIELD_ARRAY); + *ps = p; + return 0; +} + + +static int +_parse_struct_declarator_list(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + if (_parse_struct_declarator(ctx, &p)) { + return -1; + } + + for (;;) { + *ps = p; + _emit(ctx, &p.out, FIELD_NEXT); + if (_parse_token(ctx, SL_PP_COMMA, &p)) { + return 0; + } + if (_parse_struct_declarator(ctx, &p)) { + return 0; + } + } +} + + +static int +_parse_struct_declaration(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + if (_parse_type_specifier(ctx, &p)) { + return -1; + } + if (_parse_struct_declarator_list(ctx, &p)) { + return -1; + } + if (_parse_token(ctx, SL_PP_SEMICOLON, &p)) { + return -1; + } + _emit(ctx, &p.out, FIELD_NONE); + *ps = p; + return 0; +} + + +static int +_parse_struct_declaration_list(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + if (_parse_struct_declaration(ctx, &p)) { + return -1; + } + + for (;;) { + *ps = p; + _emit(ctx, &p.out, FIELD_NEXT); + if (_parse_struct_declaration(ctx, &p)) { + return 0; + } + } +} + + +static int +_parse_struct_specifier(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + if (_parse_id(ctx, ctx->dict._struct, &p)) { + return -1; + } + if (_parse_identifier(ctx, &p)) { + _emit(ctx, &p.out, '\0'); + } + if (_parse_token(ctx, SL_PP_LBRACE, &p)) { + _error(ctx, "expected `{'"); + return -1; + } + if (_parse_struct_declaration_list(ctx, &p)) { + return -1; + } + if (_parse_token(ctx, SL_PP_RBRACE, &p)) { + return -1; + } + _emit(ctx, &p.out, FIELD_NONE); + *ps = p; + return 0; +} + + +static int +_parse_type_specifier_nonarray(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + unsigned int e = _emit(ctx, &p.out, 0); + int id; + + if (_parse_struct_specifier(ctx, &p) == 0) { + _update(ctx, e, TYPE_SPECIFIER_STRUCT); + *ps = p; + return 0; + } + + if (ctx->input[p.in].token != SL_PP_IDENTIFIER) { + return -1; + } + id = ctx->input[p.in].data.identifier; + + if (id == ctx->dict._void) { + _update(ctx, e, TYPE_SPECIFIER_VOID); + } else if (id == ctx->dict._float) { + _update(ctx, e, TYPE_SPECIFIER_FLOAT); + } else if (id == ctx->dict._int) { + _update(ctx, e, TYPE_SPECIFIER_INT); + } else if (id == ctx->dict._bool) { + _update(ctx, e, TYPE_SPECIFIER_BOOL); + } else if (id == ctx->dict.vec2) { + _update(ctx, e, TYPE_SPECIFIER_VEC2); + } else if (id == ctx->dict.vec3) { + _update(ctx, e, TYPE_SPECIFIER_VEC3); + } else if (id == ctx->dict.vec4) { + _update(ctx, e, TYPE_SPECIFIER_VEC4); + } else if (id == ctx->dict.bvec2) { + _update(ctx, e, TYPE_SPECIFIER_BVEC2); + } else if (id == ctx->dict.bvec3) { + _update(ctx, e, TYPE_SPECIFIER_BVEC3); + } else if (id == ctx->dict.bvec4) { + _update(ctx, e, TYPE_SPECIFIER_BVEC4); + } else if (id == ctx->dict.ivec2) { + _update(ctx, e, TYPE_SPECIFIER_IVEC2); + } else if (id == ctx->dict.ivec3) { + _update(ctx, e, TYPE_SPECIFIER_IVEC3); + } else if (id == ctx->dict.ivec4) { + _update(ctx, e, TYPE_SPECIFIER_IVEC4); + } else if (id == ctx->dict.mat2) { + _update(ctx, e, TYPE_SPECIFIER_MAT2); + } else if (id == ctx->dict.mat3) { + _update(ctx, e, TYPE_SPECIFIER_MAT3); + } else if (id == ctx->dict.mat4) { + _update(ctx, e, TYPE_SPECIFIER_MAT4); + } else if (id == ctx->dict.mat2x3) { + _update(ctx, e, TYPE_SPECIFIER_MAT23); + } else if (id == ctx->dict.mat3x2) { + _update(ctx, e, TYPE_SPECIFIER_MAT32); + } else if (id == ctx->dict.mat2x4) { + _update(ctx, e, TYPE_SPECIFIER_MAT24); + } else if (id == ctx->dict.mat4x2) { + _update(ctx, e, TYPE_SPECIFIER_MAT42); + } else if (id == ctx->dict.mat3x4) { + _update(ctx, e, TYPE_SPECIFIER_MAT34); + } else if (id == ctx->dict.mat4x3) { + _update(ctx, e, TYPE_SPECIFIER_MAT43); + } else if (id == ctx->dict.sampler1D) { + _update(ctx, e, TYPE_SPECIFIER_SAMPLER1D); + } else if (id == ctx->dict.sampler2D) { + _update(ctx, e, TYPE_SPECIFIER_SAMPLER2D); + } else if (id == ctx->dict.sampler3D) { + _update(ctx, e, TYPE_SPECIFIER_SAMPLER3D); + } else if (id == ctx->dict.samplerCube) { + _update(ctx, e, TYPE_SPECIFIER_SAMPLERCUBE); + } else if (id == ctx->dict.sampler1DShadow) { + _update(ctx, e, TYPE_SPECIFIER_SAMPLER1DSHADOW); + } else if (id == ctx->dict.sampler2DShadow) { + _update(ctx, e, TYPE_SPECIFIER_SAMPLER2DSHADOW); + } else if (id == ctx->dict.sampler2DRect) { + _update(ctx, e, TYPE_SPECIFIER_SAMPLER2DRECT); + } else if (id == ctx->dict.sampler2DRectShadow) { + _update(ctx, e, TYPE_SPECIFIER_SAMPLER2DRECTSHADOW); + } else if (_parse_identifier(ctx, &p) == 0) { + _update(ctx, e, TYPE_SPECIFIER_TYPENAME); + *ps = p; + return 0; + } else { + return -1; + } + + _parse_token(ctx, SL_PP_IDENTIFIER, &p); + *ps = p; + return 0; +} + + +static int +_parse_type_specifier_array(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + if (_parse_token(ctx, SL_PP_LBRACKET, &p)) { + return -1; + } + if (_parse_constant_expression(ctx, &p)) { + _error(ctx, "expected constant integral expression"); + return -1; + } + if (_parse_token(ctx, SL_PP_RBRACKET, &p)) { + _error(ctx, "expected `]'"); + return -1; + } + *ps = p; + return 0; +} + + +static int +_parse_type_specifier(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + unsigned int e; + + if (_parse_type_specifier_nonarray(ctx, &p)) { + return -1; + } + + e = _emit(ctx, &p.out, TYPE_SPECIFIER_ARRAY); + if (_parse_type_specifier_array(ctx, &p)) { + _update(ctx, e, TYPE_SPECIFIER_NONARRAY); + } + *ps = p; + return 0; +} + + +static int +_parse_fully_specified_type(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + if (_parse_invariant_qualifier(ctx, &p)) { + _emit(ctx, &p.out, TYPE_VARIANT); + } + if (_parse_centroid_qualifier(ctx, &p)) { + _emit(ctx, &p.out, TYPE_CENTER); + } + if (_parse_type_qualifier(ctx, &p)) { + _emit(ctx, &p.out, TYPE_QUALIFIER_NONE); + } + if (_parse_precision(ctx, &p)) { + _emit(ctx, &p.out, PRECISION_DEFAULT); + } + if (_parse_type_specifier(ctx, &p)) { + return -1; + } + *ps = p; + return 0; +} + + +static int +_parse_function_header(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + if (_parse_fully_specified_type(ctx, &p)) { + return -1; + } + if (_parse_function_decl_identifier(ctx, &p)) { + return -1; + } + if (_parse_token(ctx, SL_PP_LPAREN, &p)) { + return -1; + } + *ps = p; + return 0; +} + + +static int +_parse_parameter_qualifier(struct parse_context *ctx, + struct parse_state *ps) +{ + unsigned int e = _emit(ctx, &ps->out, PARAM_QUALIFIER_IN); + + if (_parse_id(ctx, ctx->dict.out, ps) == 0) { + _update(ctx, e, PARAM_QUALIFIER_OUT); + } else if (_parse_id(ctx, ctx->dict.inout, ps) == 0) { + _update(ctx, e, PARAM_QUALIFIER_INOUT); + } else { + _parse_id(ctx, ctx->dict.in, ps); + } + return 0; +} + + +static int +_parse_function_identifier(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p; + unsigned int e; + + if (_parse_identifier(ctx, ps)) { + return -1; + } + e = _emit(ctx, &ps->out, FUNCTION_CALL_NONARRAY); + + p = *ps; + if (_parse_token(ctx, SL_PP_LBRACKET, &p)) { + return 0; + } + if (_parse_constant_expression(ctx, &p)) { + _error(ctx, "expected constant integral expression"); + return -1; + } + if (_parse_token(ctx, SL_PP_RBRACKET, &p)) { + _error(ctx, "expected `]'"); + return -1; + } + _update(ctx, e, FUNCTION_CALL_ARRAY); + *ps = p; + return 0; +} + + +static int +_parse_function_call_header(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + if (_parse_function_identifier(ctx, &p)) { + return -1; + } + if (_parse_token(ctx, SL_PP_LPAREN, &p)) { + return -1; + } + *ps = p; + return 0; +} + + +static int +_parse_assign_expression(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + unsigned int op; + + if (_parse_unary_expression(ctx, &p)) { + return -1; + } + + if (_parse_token(ctx, SL_PP_ASSIGN, &p) == 0) { + op = OP_ASSIGN; + } else if (_parse_token(ctx, SL_PP_MULASSIGN, &p) == 0) { + op = OP_MULASSIGN; + } else if (_parse_token(ctx, SL_PP_DIVASSIGN, &p) == 0) { + op = OP_DIVASSIGN; + } else if (_parse_token(ctx, SL_PP_ADDASSIGN, &p) == 0) { + op = OP_ADDASSIGN; + } else if (_parse_token(ctx, SL_PP_SUBASSIGN, &p) == 0) { + op = OP_SUBASSIGN; + } else { + return -1; + } + + if (_parse_assignment_expression(ctx, &p)) { + return -1; + } + _emit(ctx, &p.out, op); + + *ps = p; + return 0; +} + + +static int +_parse_assignment_expression(struct parse_context *ctx, + struct parse_state *ps) +{ + if (_parse_assign_expression(ctx, ps) == 0) { + return 0; + } + + if (_parse_conditional_expression(ctx, ps) == 0) { + return 0; + } + + return -1; +} + + +static int +_parse_function_call_header_with_parameters(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + if (_parse_function_call_header(ctx, &p)) { + return -1; + } + if (_parse_assignment_expression(ctx, &p)) { + return -1; + } + _emit(ctx, &p.out, OP_END); + for (;;) { + *ps = p; + if (_parse_token(ctx, SL_PP_COMMA, &p)) { + return 0; + } + if (_parse_assignment_expression(ctx, &p)) { + return 0; + } + _emit(ctx, &p.out, OP_END); + } +} + + +static int +_parse_function_call_header_no_parameters(struct parse_context *ctx, + struct parse_state *ps) +{ + if (_parse_function_call_header(ctx, ps)) { + return -1; + } + _parse_id(ctx, ctx->dict._void, ps); + return 0; +} + + +static int +_parse_function_call_generic(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + if (_parse_function_call_header_with_parameters(ctx, &p) == 0) { + if (_parse_token(ctx, SL_PP_RPAREN, &p) == 0) { + *ps = p; + return 0; + } + _error(ctx, "expected `)'"); + return -1; + } + + p = *ps; + if (_parse_function_call_header_no_parameters(ctx, &p) == 0) { + if (_parse_token(ctx, SL_PP_RPAREN, &p) == 0) { + *ps = p; + return 0; + } + _error(ctx, "expected `)'"); + return -1; + } + + return -1; +} + + +static int +_parse_method_call(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + _emit(ctx, &p.out, OP_METHOD); + if (_parse_identifier(ctx, &p)) { + return -1; + } + if (_parse_token(ctx, SL_PP_DOT, &p)) { + return -1; + } + if (_parse_function_call_generic(ctx, &p)) { + return -1; + } + _emit(ctx, &p.out, OP_END); + *ps = p; + return 0; +} + + +static int +_parse_regular_function_call(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + _emit(ctx, &p.out, OP_CALL); + if (_parse_function_call_generic(ctx, &p)) { + return -1; + } + _emit(ctx, &p.out, OP_END); + *ps = p; + return 0; +} + + +static int +_parse_function_call(struct parse_context *ctx, + struct parse_state *ps) +{ + if (_parse_regular_function_call(ctx, ps) == 0) { + return 0; + } + + if (_parse_method_call(ctx, ps) == 0) { + return 0; + } + + return -1; +} + + +static int +_parse_expression(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + if (_parse_assignment_expression(ctx, &p)) { + return -1; + } + + for (;;) { + *ps = p; + if (_parse_token(ctx, SL_PP_COMMA, &p)) { + return 0; + } + if (_parse_assignment_expression(ctx, &p)) { + return 0; + } + _emit(ctx, &p.out, OP_SEQUENCE); + } +} + + +static int +_parse_postfix_expression(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p; + + if (_parse_function_call(ctx, ps)) { + if (_parse_primary_expression(ctx, ps)) { + return -1; + } + } + + for (p = *ps;;) { + *ps = p; + if (_parse_token(ctx, SL_PP_INCREMENT, &p) == 0) { + _emit(ctx, &p.out, OP_POSTINCREMENT); + } else if (_parse_token(ctx, SL_PP_DECREMENT, &p) == 0) { + _emit(ctx, &p.out, OP_POSTDECREMENT); + } else if (_parse_token(ctx, SL_PP_LBRACKET, &p) == 0) { + if (_parse_expression(ctx, &p)) { + _error(ctx, "expected an integral expression"); + return -1; + } + if (_parse_token(ctx, SL_PP_RBRACKET, &p)) { + _error(ctx, "expected `]'"); + return -1; + } + _emit(ctx, &p.out, OP_SUBSCRIPT); + } else if (_parse_token(ctx, SL_PP_DOT, &p) == 0) { + _emit(ctx, &p.out, OP_FIELD); + if (_parse_identifier(ctx, &p)) { + return 0; + } + } else { + return 0; + } + } +} + + +static int +_parse_unary_expression(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p; + unsigned int op; + + if (_parse_postfix_expression(ctx, ps) == 0) { + return 0; + } + + p = *ps; + if (_parse_token(ctx, SL_PP_INCREMENT, &p) == 0) { + op = OP_PREINCREMENT; + } else if (_parse_token(ctx, SL_PP_DECREMENT, &p) == 0) { + op = OP_PREDECREMENT; + } else if (_parse_token(ctx, SL_PP_PLUS, &p) == 0) { + op = OP_PLUS; + } else if (_parse_token(ctx, SL_PP_MINUS, &p) == 0) { + op = OP_MINUS; + } else if (_parse_token(ctx, SL_PP_NOT, &p) == 0) { + op = OP_NOT; + } else { + return -1; + } + + if (_parse_unary_expression(ctx, &p)) { + return -1; + } + _emit(ctx, &p.out, op); + *ps = p; + return 0; +} + + +static int +_parse_multiplicative_expression(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + if (_parse_unary_expression(ctx, &p)) { + return -1; + } + for (;;) { + unsigned int op; + + *ps = p; + if (_parse_token(ctx, SL_PP_STAR, &p) == 0) { + op = OP_MULTIPLY; + } else if (_parse_token(ctx, SL_PP_SLASH, &p) == 0) { + op = OP_DIVIDE; + } else { + return 0; + } + if (_parse_unary_expression(ctx, &p)) { + return 0; + } + _emit(ctx, &p.out, op); + } +} + + +static int +_parse_additive_expression(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + if (_parse_multiplicative_expression(ctx, &p)) { + return -1; + } + for (;;) { + unsigned int op; + + *ps = p; + if (_parse_token(ctx, SL_PP_PLUS, &p) == 0) { + op = OP_ADD; + } else if (_parse_token(ctx, SL_PP_MINUS, &p) == 0) { + op = OP_SUBTRACT; + } else { + return 0; + } + if (_parse_multiplicative_expression(ctx, &p)) { + return 0; + } + _emit(ctx, &p.out, op); + } +} + + +static int +_parse_relational_expression(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + if (_parse_additive_expression(ctx, &p)) { + return -1; + } + for (;;) { + unsigned int op; + + *ps = p; + if (_parse_token(ctx, SL_PP_LESS, &p) == 0) { + op = OP_LESS; + } else if (_parse_token(ctx, SL_PP_GREATER, &p) == 0) { + op = OP_GREATER; + } else if (_parse_token(ctx, SL_PP_LESSEQUAL, &p) == 0) { + op = OP_LESSEQUAL; + } else if (_parse_token(ctx, SL_PP_GREATEREQUAL, &p) == 0) { + op = OP_GREATEREQUAL; + } else { + return 0; + } + if (_parse_additive_expression(ctx, &p)) { + return 0; + } + _emit(ctx, &p.out, op); + } +} + + +static int +_parse_equality_expression(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + if (_parse_relational_expression(ctx, &p)) { + return -1; + } + for (;;) { + unsigned int op; + + *ps = p; + if (_parse_token(ctx, SL_PP_EQUAL, &p) == 0) { + op = OP_EQUAL; + } else if (_parse_token(ctx, SL_PP_NOTEQUAL, &p) == 0) { + op = OP_NOTEQUAL; + } else { + return 0; + } + if (_parse_relational_expression(ctx, &p)) { + return -1; + } + _emit(ctx, &p.out, op); + } +} + + +static int +_parse_logical_and_expression(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + if (_parse_equality_expression(ctx, &p)) { + return -1; + } + for (;;) { + *ps = p; + if (_parse_token(ctx, SL_PP_AND, &p)) { + return 0; + } + if (_parse_equality_expression(ctx, &p)) { + return 0; + } + _emit(ctx, &p.out, OP_LOGICALAND); + } +} + + +static int +_parse_logical_xor_expression(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + if (_parse_logical_and_expression(ctx, &p)) { + return -1; + } + for (;;) { + *ps = p; + if (_parse_token(ctx, SL_PP_XOR, &p)) { + return 0; + } + if (_parse_logical_and_expression(ctx, &p)) { + return 0; + } + _emit(ctx, &p.out, OP_LOGICALXOR); + } +} + + +static int +_parse_logical_or_expression(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + if (_parse_logical_xor_expression(ctx, &p)) { + return -1; + } + for (;;) { + *ps = p; + if (_parse_token(ctx, SL_PP_OR, &p)) { + return 0; + } + if (_parse_logical_xor_expression(ctx, &p)) { + return 0; + } + _emit(ctx, &p.out, OP_LOGICALOR); + } +} + + +static int +_parse_conditional_expression(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + if (_parse_logical_or_expression(ctx, &p)) { + return -1; + } + for (;;) { + *ps = p; + if (_parse_token(ctx, SL_PP_QUESTION, &p)) { + return 0; + } + if (_parse_expression(ctx, &p)) { + return 0; + } + if (_parse_token(ctx, SL_PP_COLON, &p)) { + return 0; + } + if (_parse_conditional_expression(ctx, &p)) { + return 0; + } + _emit(ctx, &p.out, OP_SELECT); + } +} + + +static int +_parse_constant_expression(struct parse_context *ctx, + struct parse_state *ps) +{ + if (_parse_conditional_expression(ctx, ps)) { + return -1; + } + _emit(ctx, &ps->out, OP_END); + return 0; +} + + +static int +_parse_parameter_declarator_array(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + if (_parse_token(ctx, SL_PP_LBRACKET, &p)) { + return -1; + } + if (_parse_constant_expression(ctx, &p)) { + _error(ctx, "expected constant integral expression"); + return -1; + } + if (_parse_token(ctx, SL_PP_RBRACKET, &p)) { + _error(ctx, "expected `]'"); + return -1; + } + *ps = p; + return 0; +} + + +static int +_parse_parameter_declarator(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + unsigned int e; + + if (_parse_type_specifier(ctx, &p)) { + return -1; + } + if (_parse_identifier(ctx, &p)) { + return -1; + } + e = _emit(ctx, &p.out, PARAMETER_ARRAY_PRESENT); + if (_parse_parameter_declarator_array(ctx, &p)) { + _update(ctx, e, PARAMETER_ARRAY_NOT_PRESENT); + } + *ps = p; + return 0; +} + + +static int +_parse_parameter_type_specifier_array(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + if (_parse_token(ctx, SL_PP_LBRACKET, &p)) { + return -1; + } + if (_parse_constant_expression(ctx, &p)) { + _error(ctx, "expected constant integral expression"); + return -1; + } + if (_parse_token(ctx, SL_PP_RBRACKET, &p)) { + _error(ctx, "expected `]'"); + return -1; + } + *ps = p; + return 0; +} + + +static int +_parse_parameter_type_specifier(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + unsigned int e; + + if (_parse_type_specifier(ctx, &p)) { + return -1; + } + _emit(ctx, &p.out, '\0'); + + e = _emit(ctx, &p.out, PARAMETER_ARRAY_PRESENT); + if (_parse_parameter_type_specifier_array(ctx, &p)) { + _update(ctx, e, PARAMETER_ARRAY_NOT_PRESENT); + } + *ps = p; + return 0; +} + + +static int +_parse_parameter_declaration(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + unsigned int e = _emit(ctx, &p.out, PARAMETER_NEXT); + + (void) e; + + if (_parse_type_qualifier(ctx, &p)) { + _emit(ctx, &p.out, TYPE_QUALIFIER_NONE); + } + _parse_parameter_qualifier(ctx, &p); + if (_parse_precision(ctx, &p)) { + _emit(ctx, &p.out, PRECISION_DEFAULT); + } + if (_parse_parameter_declarator(ctx, &p) == 0) { + *ps = p; + return 0; + } + if (_parse_parameter_type_specifier(ctx, &p) == 0) { + *ps = p; + return 0; + } + + return -1; +} + + +static int +_parse_function_header_with_parameters(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + if (_parse_function_header(ctx, &p)) { + return -1; + } + if (_parse_parameter_declaration(ctx, &p)) { + return -1; + } + + for (;;) { + *ps = p; + if (_parse_token(ctx, SL_PP_COMMA, &p)) { + return 0; + } + if (_parse_parameter_declaration(ctx, &p)) { + return 0; + } + } +} + + +static int +_parse_function_declarator(struct parse_context *ctx, + struct parse_state *ps) +{ + if (_parse_function_header_with_parameters(ctx, ps) == 0) { + return 0; + } + + if (_parse_function_header(ctx, ps) == 0) { + return 0; + } + + return -1; +} + + +static int +_parse_function_prototype(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + if (_parse_function_header(ctx, &p) == 0) { + if (_parse_id(ctx, ctx->dict._void, &p) == 0) { + if (_parse_token(ctx, SL_PP_RPAREN, &p) == 0) { + _emit(ctx, &p.out, PARAMETER_NONE); + *ps = p; + return 0; + } + _error(ctx, "expected `)'"); + return -1; + } + } + + p = *ps; + if (_parse_function_declarator(ctx, &p) == 0) { + if (_parse_token(ctx, SL_PP_RPAREN, &p) == 0) { + _emit(ctx, &p.out, PARAMETER_NONE); + *ps = p; + return 0; + } + _error(ctx, "expected `)'"); + return -1; + } + + return -1; +} + + +static int +_parse_precision(struct parse_context *ctx, + struct parse_state *ps) +{ + int id; + unsigned int precision; + + if (ctx->input[ps->in].token != SL_PP_IDENTIFIER) { + return -1; + } + id = ctx->input[ps->in].data.identifier; + + if (id == ctx->dict.lowp) { + precision = PRECISION_LOW; + } else if (id == ctx->dict.mediump) { + precision = PRECISION_MEDIUM; + } else if (id == ctx->dict.highp) { + precision = PRECISION_HIGH; + } else { + return -1; + } + + _parse_token(ctx, SL_PP_IDENTIFIER, ps); + _emit(ctx, &ps->out, precision); + return 0; +} + + +static int +_parse_prectype(struct parse_context *ctx, + struct parse_state *ps) +{ + int id; + unsigned int type; + + if (ctx->input[ps->in].token != SL_PP_IDENTIFIER) { + return -1; + } + id = ctx->input[ps->in].data.identifier; + + if (id == ctx->dict._int) { + type = TYPE_SPECIFIER_INT; + } else if (id == ctx->dict._float) { + type = TYPE_SPECIFIER_FLOAT; + } else if (id == ctx->dict.sampler1D) { + type = TYPE_SPECIFIER_SAMPLER1D; + } else if (id == ctx->dict.sampler2D) { + type = TYPE_SPECIFIER_SAMPLER2D; + } else if (id == ctx->dict.sampler3D) { + type = TYPE_SPECIFIER_SAMPLER3D; + } else if (id == ctx->dict.samplerCube) { + type = TYPE_SPECIFIER_SAMPLERCUBE; + } else if (id == ctx->dict.sampler1DShadow) { + type = TYPE_SPECIFIER_SAMPLER1DSHADOW; + } else if (id == ctx->dict.sampler2DShadow) { + type = TYPE_SPECIFIER_SAMPLER2DSHADOW; + } else if (id == ctx->dict.sampler2DRect) { + type = TYPE_SPECIFIER_SAMPLER2DRECT; + } else if (id == ctx->dict.sampler2DRectShadow) { + type = TYPE_SPECIFIER_SAMPLER2DRECTSHADOW; + } else { + return -1; + } + + _parse_token(ctx, SL_PP_IDENTIFIER, ps); + _emit(ctx, &ps->out, type); + return 0; +} + + +static int +_parse_precision_stmt(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + if (_parse_id(ctx, ctx->dict.precision, &p)) { + return -1; + } + if (_parse_precision(ctx, &p)) { + return -1; + } + if (_parse_prectype(ctx, &p)) { + return -1; + } + if (_parse_token(ctx, SL_PP_SEMICOLON, &p)) { + return -1; + } + *ps = p; + return 0; +} + + +static int +_parse_floatconstant(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + _emit(ctx, &p.out, OP_PUSH_FLOAT); + if (_parse_float(ctx, &p)) { + return -1; + } + *ps = p; + return 0; +} + + +static int +_parse_intconstant(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + _emit(ctx, &p.out, OP_PUSH_INT); + if (_parse_uint(ctx, &p)) { + return -1; + } + *ps = p; + return 0; +} + + +static int +_parse_boolconstant(struct parse_context *ctx, + struct parse_state *ps) +{ + if (_parse_id(ctx, ctx->dict._false, ps) == 0) { + _emit(ctx, &ps->out, OP_PUSH_BOOL); + _emit(ctx, &ps->out, 2); /* radix */ + _emit(ctx, &ps->out, '0'); + _emit(ctx, &ps->out, '\0'); + return 0; + } + + if (_parse_id(ctx, ctx->dict._true, ps) == 0) { + _emit(ctx, &ps->out, OP_PUSH_BOOL); + _emit(ctx, &ps->out, 2); /* radix */ + _emit(ctx, &ps->out, '1'); + _emit(ctx, &ps->out, '\0'); + return 0; + } + + return -1; +} + + +static int +_parse_variable_identifier(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + _emit(ctx, &p.out, OP_PUSH_IDENTIFIER); + if (_parse_identifier(ctx, &p)) { + return -1; + } + *ps = p; + return 0; +} + + +static int +_parse_primary_expression(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p; + + if (_parse_floatconstant(ctx, ps) == 0) { + return 0; + } + if (_parse_boolconstant(ctx, ps) == 0) { + return 0; + } + if (_parse_intconstant(ctx, ps) == 0) { + return 0; + } + if (_parse_variable_identifier(ctx, ps) == 0) { + return 0; + } + + p = *ps; + if (_parse_token(ctx, SL_PP_LPAREN, &p)) { + return -1; + } + if (_parse_expression(ctx, &p)) { + return -1; + } + if (_parse_token(ctx, SL_PP_RPAREN, &p)) { + return -1; + } + + *ps = p; + return 0; +} + + +static int +_parse_asm_argument(struct parse_context *ctx, + struct parse_state *ps) +{ + if (_parse_variable_identifier(ctx, ps) == 0) { + struct parse_state p = *ps; + + if (_parse_token(ctx, SL_PP_DOT, &p)) { + return 0; + } + _emit(ctx, &p.out, OP_FIELD); + if (_parse_identifier(ctx, &p)) { + return 0; + } + *ps = p; + return 0; + } + + if (_parse_floatconstant(ctx, ps) == 0) { + return 0; + } + + return -1; +} + + +static int +_parse_asm_arguments(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + if (_parse_asm_argument(ctx, &p)) { + return -1; + } + _emit(ctx, &p.out, OP_END); + + for (;;) { + *ps = p; + if (_parse_token(ctx, SL_PP_COMMA, &p)) { + return 0; + } + if (_parse_asm_argument(ctx, &p)) { + return 0; + } + _emit(ctx, &p.out, OP_END); + } +} + + +static int +_parse_asm_statement(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + if (_parse_id(ctx, ctx->dict.___asm, &p)) { + return -1; + } + if (_parse_identifier(ctx, &p)) { + return -1; + } + if (_parse_asm_arguments(ctx, &p)) { + return -1; + } + if (_parse_token(ctx, SL_PP_SEMICOLON, &p)) { + return -1; + } + _emit(ctx, &p.out, OP_END); + *ps = p; + return 0; +} + + +static int +_parse_selection_statement(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + _emit(ctx, &p.out, OP_IF); + if (_parse_id(ctx, ctx->dict._if, &p)) { + return -1; + } + if (_parse_token(ctx, SL_PP_LPAREN, &p)) { + _error(ctx, "expected `('"); + return -1; + } + if (_parse_expression(ctx, &p)) { + _error(ctx, "expected an expression"); + return -1; + } + if (_parse_token(ctx, SL_PP_RPAREN, &p)) { + _error(ctx, "expected `)'"); + return -1; + } + _emit(ctx, &p.out, OP_END); + if (_parse_statement(ctx, &p)) { + return -1; + } + + *ps = p; + if (_parse_id(ctx, ctx->dict._else, &p) == 0) { + if (_parse_statement(ctx, &p) == 0) { + *ps = p; + return 0; + } + } + + _emit(ctx, &ps->out, OP_EXPRESSION); + _emit(ctx, &ps->out, OP_PUSH_VOID); + _emit(ctx, &ps->out, OP_END); + return 0; +} + + +static int +_parse_expression_statement(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + if (_parse_expression(ctx, &p)) { + _emit(ctx, &p.out, OP_PUSH_VOID); + } + if (_parse_token(ctx, SL_PP_SEMICOLON, &p)) { + return -1; + } + _emit(ctx, &p.out, OP_END); + *ps = p; + return 0; +} + + +static int +_parse_for_init_statement(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + unsigned int e = _emit(ctx, &p.out, OP_EXPRESSION); + + if (_parse_expression_statement(ctx, &p) == 0) { + *ps = p; + return 0; + } + + if (_parse_declaration(ctx, &p) == 0) { + _update(ctx, e, OP_DECLARE); + *ps = p; + return 0; + } + + return -1; +} + + +static int +_parse_initializer(struct parse_context *ctx, + struct parse_state *ps) +{ + if (_parse_assignment_expression(ctx, ps) == 0) { + _emit(ctx, &ps->out, OP_END); + return 0; + } + return -1; +} + + +static int +_parse_condition_initializer(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + _emit(ctx, &p.out, OP_DECLARE); + _emit(ctx, &p.out, DECLARATION_INIT_DECLARATOR_LIST); + if (_parse_fully_specified_type(ctx, &p)) { + return -1; + } + _emit(ctx, &p.out, VARIABLE_IDENTIFIER); + if (_parse_identifier(ctx, &p)) { + return -1; + } + if (_parse_token(ctx, SL_PP_ASSIGN, &p)) { + _error(ctx, "expected `='"); + return -1; + } + _emit(ctx, &p.out, VARIABLE_INITIALIZER); + if (_parse_initializer(ctx, &p)) { + _error(ctx, "expected an initialiser"); + return -1; + } + _emit(ctx, &p.out, DECLARATOR_NONE); + *ps = p; + return 0; +} + + +static int +_parse_condition(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p; + + if (_parse_condition_initializer(ctx, ps) == 0) { + return 0; + } + + p = *ps; + _emit(ctx, &p.out, OP_EXPRESSION); + if (_parse_expression(ctx, &p) == 0) { + _emit(ctx, &p.out, OP_END); + *ps = p; + return 0; + } + + return -1; +} + + +static int +_parse_for_rest_statement(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + if (_parse_condition(ctx, &p)) { + _emit(ctx, &p.out, OP_EXPRESSION); + _emit(ctx, &p.out, OP_PUSH_BOOL); + _emit(ctx, &p.out, 2); + _emit(ctx, &p.out, '1'); + _emit(ctx, &p.out, '\0'); + _emit(ctx, &p.out, OP_END); + } + if (_parse_token(ctx, SL_PP_SEMICOLON, &p)) { + return -1; + } + if (_parse_expression(ctx, &p)) { + _emit(ctx, &p.out, OP_PUSH_VOID); + } + _emit(ctx, &p.out, OP_END); + *ps = p; + return 0; +} + + +static int +_parse_iteration_statement(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + if (_parse_id(ctx, ctx->dict._while, &p) == 0) { + _emit(ctx, &p.out, OP_WHILE); + if (_parse_token(ctx, SL_PP_LPAREN, &p)) { + _error(ctx, "expected `('"); + return -1; + } + if (_parse_condition(ctx, &p)) { + _error(ctx, "expected an expression"); + return -1; + } + if (_parse_token(ctx, SL_PP_RPAREN, &p)) { + _error(ctx, "expected `)'"); + return -1; + } + if (_parse_statement(ctx, &p)) { + return -1; + } + *ps = p; + return 0; + } + + if (_parse_id(ctx, ctx->dict._do, &p) == 0) { + _emit(ctx, &p.out, OP_DO); + if (_parse_statement(ctx, &p)) { + return -1; + } + if (_parse_id(ctx, ctx->dict._while, &p)) { + return -1; + } + if (_parse_token(ctx, SL_PP_LPAREN, &p)) { + _error(ctx, "expected `('"); + return -1; + } + if (_parse_expression(ctx, &p)) { + _error(ctx, "expected an expression"); + return -1; + } + if (_parse_token(ctx, SL_PP_RPAREN, &p)) { + _error(ctx, "expected `)'"); + return -1; + } + _emit(ctx, &p.out, OP_END); + if (_parse_token(ctx, SL_PP_SEMICOLON, &p)) { + _error(ctx, "expected `;'"); + return -1; + } + *ps = p; + return 0; + } + + if (_parse_id(ctx, ctx->dict._for, &p) == 0) { + _emit(ctx, &p.out, OP_FOR); + if (_parse_token(ctx, SL_PP_LPAREN, &p)) { + _error(ctx, "expected `('"); + return -1; + } + if (_parse_for_init_statement(ctx, &p)) { + return -1; + } + if (_parse_for_rest_statement(ctx, &p)) { + return -1; + } + if (_parse_token(ctx, SL_PP_RPAREN, &p)) { + _error(ctx, "expected `)'"); + return -1; + } + if (_parse_statement(ctx, &p)) { + return -1; + } + *ps = p; + return 0; + } + + return -1; +} + + +static int +_parse_jump_statement(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + unsigned int e = _emit(ctx, &p.out, 0); + + if (_parse_id(ctx, ctx->dict._continue, &p) == 0) { + _update(ctx, e, OP_CONTINUE); + } else if (_parse_id(ctx, ctx->dict._break, &p) == 0) { + _update(ctx, e, OP_BREAK); + } else if (_parse_id(ctx, ctx->dict._return, &p) == 0) { + _update(ctx, e, OP_RETURN); + if (_parse_expression(ctx, &p)) { + _emit(ctx, &p.out, OP_PUSH_VOID); + } + _emit(ctx, &p.out, OP_END); + } else if (ctx->shader_type == 1 && _parse_id(ctx, ctx->dict.discard, &p) == 0) { + _update(ctx, e, OP_DISCARD); + } else { + return -1; + } + if (_parse_token(ctx, SL_PP_SEMICOLON, &p)) { + return -1; + } + *ps = p; + return 0; +} + + +static int +_parse_simple_statement(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p; + unsigned int e; + + if (_parse_selection_statement(ctx, ps) == 0) { + return 0; + } + + if (_parse_iteration_statement(ctx, ps) == 0) { + return 0; + } + + if (_parse_jump_statement(ctx, ps) == 0) { + return 0; + } + + p = *ps; + e = _emit(ctx, &p.out, OP_EXPRESSION); + if (_parse_expression_statement(ctx, &p) == 0) { + *ps = p; + return 0; + } + + if (_parse_precision_stmt(ctx, &p) == 0) { + _update(ctx, e, OP_PRECISION); + *ps = p; + return 0; + } + + if (ctx->parsing_builtin && _parse_asm_statement(ctx, &p) == 0) { + _update(ctx, e, OP_ASM); + *ps = p; + return 0; + } + + if (_parse_declaration(ctx, &p) == 0) { + _update(ctx, e, OP_DECLARE); + *ps = p; + return 0; + } + + return -1; +} + + +static int +_parse_compound_statement(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + if (_parse_token(ctx, SL_PP_LBRACE, &p)) { + return -1; + } + _emit(ctx, &p.out, OP_BLOCK_BEGIN_NEW_SCOPE); + _parse_statement_list(ctx, &p); + if (_parse_token(ctx, SL_PP_RBRACE, &p)) { + return -1; + } + _emit(ctx, &p.out, OP_END); + *ps = p; + return 0; +} + + +static int +_parse_statement(struct parse_context *ctx, + struct parse_state *ps) +{ + if (_parse_compound_statement(ctx, ps) == 0) { + return 0; + } + + if (_parse_simple_statement(ctx, ps) == 0) { + return 0; + } + + return -1; +} + + +static int +_parse_statement_list(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + if (_parse_statement(ctx, &p)) { + return -1; + } + + for (;;) { + *ps = p; + if (_parse_statement(ctx, &p)) { + return 0; + } + } +} + + +static int +_parse_compound_statement_no_new_scope(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + if (_parse_token(ctx, SL_PP_LBRACE, &p)) { + return -1; + } + _emit(ctx, &p.out, OP_BLOCK_BEGIN_NO_NEW_SCOPE); + _parse_statement_list(ctx, &p); + if (_parse_token(ctx, SL_PP_RBRACE, &p)) { + return -1; + } + _emit(ctx, &p.out, OP_END); + *ps = p; + return 0; +} + + +static int +_parse_function_definition(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + if (_parse_function_prototype(ctx, &p)) { + return -1; + } + if (_parse_compound_statement_no_new_scope(ctx, &p)) { + return -1; + } + *ps = p; + return 0; +} + + +static int +_parse_invariant_stmt(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + if (_parse_id(ctx, ctx->dict.invariant, &p)) { + return -1; + } + if (_parse_identifier(ctx, &p)) { + return -1; + } + if (_parse_token(ctx, SL_PP_SEMICOLON, &p)) { + return -1; + } + *ps = p; + return 0; +} + + +static int +_parse_single_declaration(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + unsigned int e; + + if (_parse_fully_specified_type(ctx, &p)) { + return -1; + } + + e = _emit(ctx, &p.out, VARIABLE_IDENTIFIER); + if (_parse_identifier(ctx, &p)) { + _update(ctx, e, VARIABLE_NONE); + *ps = p; + return 0; + } + + e = _emit(ctx, &p.out, VARIABLE_NONE); + *ps = p; + + if (_parse_token(ctx, SL_PP_ASSIGN, &p) == 0) { + _update(ctx, e, VARIABLE_INITIALIZER); + if (_parse_initializer(ctx, &p) == 0) { + *ps = p; + return 0; + } + _error(ctx, "expected an initialiser"); + return -1; + } + p = *ps; + + if (_parse_token(ctx, SL_PP_LBRACKET, &p) == 0) { + if (_parse_constant_expression(ctx, &p)) { + _update(ctx, e, VARIABLE_ARRAY_UNKNOWN); + } else { + _update(ctx, e, VARIABLE_ARRAY_EXPLICIT); + } + if (_parse_token(ctx, SL_PP_RBRACKET, &p) == 0) { + *ps = p; + return 0; + } + _error(ctx, "expected `]'"); + return -1; + } + return 0; +} + + +static int +_parse_init_declarator_list(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + + if (_parse_single_declaration(ctx, &p)) { + return -1; + } + + for (;;) { + unsigned int e; + + *ps = p; + if (_parse_token(ctx, SL_PP_COMMA, &p)) { + break; + } + _emit(ctx, &p.out, DECLARATOR_NEXT); + _emit(ctx, &p.out, VARIABLE_IDENTIFIER); + if (_parse_identifier(ctx, &p)) { + break; + } + + e = _emit(ctx, &p.out, VARIABLE_NONE); + *ps = p; + + if (_parse_token(ctx, SL_PP_ASSIGN, &p) == 0) { + if (_parse_initializer(ctx, &p) == 0) { + _update(ctx, e, VARIABLE_INITIALIZER); + *ps = p; + continue; + } + _error(ctx, "expected an initialiser"); + break; + } + p = *ps; + + if (_parse_token(ctx, SL_PP_LBRACKET, &p) == 0) { + unsigned int arr; + + if (_parse_constant_expression(ctx, &p)) { + arr = VARIABLE_ARRAY_UNKNOWN; + } else { + arr = VARIABLE_ARRAY_EXPLICIT; + } + if (_parse_token(ctx, SL_PP_RBRACKET, &p) == 0) { + _update(ctx, e, arr); + *ps = p; + continue; + } + _error(ctx, "expected `]'"); + break; + } + p = *ps; + } + + _emit(ctx, &ps->out, DECLARATOR_NONE); + return 0; +} + + +static int +_parse_declaration(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + unsigned int e = _emit(ctx, &p.out, DECLARATION_FUNCTION_PROTOTYPE); + + if (_parse_function_prototype(ctx, &p)) { + if (_parse_init_declarator_list(ctx, &p)) { + return -1; + } + _update(ctx, e, DECLARATION_INIT_DECLARATOR_LIST); + } + if (_parse_token(ctx, SL_PP_SEMICOLON, &p)) { + _error(ctx, "expected `;'"); + return -1; + } + *ps = p; + return 0; +} + + +static int +_parse_external_declaration(struct parse_context *ctx, + struct parse_state *ps) +{ + struct parse_state p = *ps; + unsigned int e = _emit(ctx, &p.out, 0); + + if (_parse_precision_stmt(ctx, &p) == 0) { + _update(ctx, e, DEFAULT_PRECISION); + *ps = p; + return 0; + } + + if (_parse_function_definition(ctx, &p) == 0) { + _update(ctx, e, EXTERNAL_FUNCTION_DEFINITION); + *ps = p; + return 0; + } + + if (_parse_invariant_stmt(ctx, &p) == 0) { + _update(ctx, e, INVARIANT_STMT); + *ps = p; + return 0; + } + + if (_parse_declaration(ctx, &p) == 0) { + _update(ctx, e, EXTERNAL_DECLARATION); + *ps = p; + return 0; + } + + _error(ctx, "expected an identifier"); + return -1; +} + + +static int +_parse_translation_unit(struct parse_context *ctx, + struct parse_state *ps) +{ + _emit(ctx, &ps->out, REVISION); + if (_parse_external_declaration(ctx, ps)) { + return -1; + } + while (_parse_external_declaration(ctx, ps) == 0) { + } + _emit(ctx, &ps->out, EXTERNAL_NULL); + if (_parse_token(ctx, SL_PP_EOF, ps)) { + return -1; + } + return 0; +} + + +#define ADD_NAME_STR(CTX, NAME, STR)\ + do {\ + (CTX).dict.NAME = sl_pp_context_add_unique_str((CTX).context, (STR));\ + if ((CTX).dict.NAME == -1) {\ + return -1;\ + }\ + } while (0) + +#define ADD_NAME(CTX, NAME) ADD_NAME_STR(CTX, NAME, #NAME) + + +int +sl_cl_compile(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int shader_type, + unsigned int parsing_builtin, + unsigned char **output, + unsigned int *cboutput, + char *error, + unsigned int cberror) +{ + struct parse_context ctx; + struct parse_state ps; + + ctx.context = context; + ctx.input = input; + + ADD_NAME_STR(ctx, _void, "void"); + ADD_NAME_STR(ctx, _float, "float"); + ADD_NAME_STR(ctx, _int, "int"); + ADD_NAME_STR(ctx, _bool, "bool"); + ADD_NAME(ctx, vec2); + ADD_NAME(ctx, vec3); + ADD_NAME(ctx, vec4); + ADD_NAME(ctx, bvec2); + ADD_NAME(ctx, bvec3); + ADD_NAME(ctx, bvec4); + ADD_NAME(ctx, ivec2); + ADD_NAME(ctx, ivec3); + ADD_NAME(ctx, ivec4); + ADD_NAME(ctx, mat2); + ADD_NAME(ctx, mat3); + ADD_NAME(ctx, mat4); + ADD_NAME(ctx, mat2x3); + ADD_NAME(ctx, mat3x2); + ADD_NAME(ctx, mat2x4); + ADD_NAME(ctx, mat4x2); + ADD_NAME(ctx, mat3x4); + ADD_NAME(ctx, mat4x3); + ADD_NAME(ctx, sampler1D); + ADD_NAME(ctx, sampler2D); + ADD_NAME(ctx, sampler3D); + ADD_NAME(ctx, samplerCube); + ADD_NAME(ctx, sampler1DShadow); + ADD_NAME(ctx, sampler2DShadow); + ADD_NAME(ctx, sampler2DRect); + ADD_NAME(ctx, sampler2DRectShadow); + + ADD_NAME(ctx, invariant); + + ADD_NAME(ctx, centroid); + + ADD_NAME(ctx, precision); + ADD_NAME(ctx, lowp); + ADD_NAME(ctx, mediump); + ADD_NAME(ctx, highp); + + ADD_NAME_STR(ctx, _const, "const"); + ADD_NAME(ctx, attribute); + ADD_NAME(ctx, varying); + ADD_NAME(ctx, uniform); + ADD_NAME(ctx, __fixed_output); + ADD_NAME(ctx, __fixed_input); + + ADD_NAME(ctx, in); + ADD_NAME(ctx, out); + ADD_NAME(ctx, inout); + + ADD_NAME_STR(ctx, _struct, "struct"); + + ADD_NAME(ctx, __constructor); + ADD_NAME(ctx, __operator); + ADD_NAME_STR(ctx, ___asm, "__asm"); + + ADD_NAME_STR(ctx, _if, "if"); + ADD_NAME_STR(ctx, _else, "else"); + ADD_NAME_STR(ctx, _for, "for"); + ADD_NAME_STR(ctx, _while, "while"); + ADD_NAME_STR(ctx, _do, "do"); + + ADD_NAME_STR(ctx, _continue, "continue"); + ADD_NAME_STR(ctx, _break, "break"); + ADD_NAME_STR(ctx, _return, "return"); + ADD_NAME(ctx, discard); + + ADD_NAME_STR(ctx, _false, "false"); + ADD_NAME_STR(ctx, _true, "true"); + + ctx.out_buf = NULL; + ctx.out_cap = 0; + + ctx.shader_type = shader_type; + ctx.parsing_builtin = 1; + + ctx.error[0] = '\0'; + + ps.in = 0; + ps.out = 0; + + if (_parse_translation_unit(&ctx, &ps)) { + strncpy(error, ctx.error, cberror); + return -1; + } + + *output = ctx.out_buf; + *cboutput = ps.out; + return 0; +} diff --git a/src/glsl/cl/sl_cl_parse.h b/src/glsl/cl/sl_cl_parse.h new file mode 100644 index 00000000000..23a0d5fee00 --- /dev/null +++ b/src/glsl/cl/sl_cl_parse.h @@ -0,0 +1,41 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#ifndef SL_CL_PARSE_H +#define SL_CL_PARSE_H + +int +sl_cl_compile(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int shader_type, + unsigned int parsing_builtin, + unsigned char **output, + unsigned int *cboutput, + char *error, + unsigned int cberror); + +#endif /* SL_CL_PARSE_H */ diff --git a/src/glsl/pp/Makefile b/src/glsl/pp/Makefile new file mode 100644 index 00000000000..819079f6258 --- /dev/null +++ b/src/glsl/pp/Makefile @@ -0,0 +1,26 @@ +#src/glsl/pp/Makefile + +TOP = ../../.. + +include $(TOP)/configs/current + +LIBNAME = glslpp + +C_SOURCES = \ + sl_pp_context.c \ + sl_pp_define.c \ + sl_pp_dict.c \ + sl_pp_error.c \ + sl_pp_expression.c \ + sl_pp_extension.c \ + sl_pp_if.c \ + sl_pp_line.c \ + sl_pp_macro.c \ + sl_pp_pragma.c \ + sl_pp_process.c \ + sl_pp_purify.c \ + sl_pp_token.c \ + sl_pp_version.c + +include ../Makefile.template + diff --git a/src/glsl/pp/sl_pp_context.c b/src/glsl/pp/sl_pp_context.c new file mode 100644 index 00000000000..afc1b84d16a --- /dev/null +++ b/src/glsl/pp/sl_pp_context.c @@ -0,0 +1,155 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include <stdlib.h> +#include <string.h> +#include "sl_pp_public.h" +#include "sl_pp_context.h" + + +struct sl_pp_context * +sl_pp_context_create(void) +{ + struct sl_pp_context *context; + + context = calloc(1, sizeof(struct sl_pp_context)); + if (!context) { + return NULL; + } + + if (sl_pp_dict_init(context)) { + sl_pp_context_destroy(context); + return NULL; + } + + context->getc_buf = malloc(64 * sizeof(char)); + if (!context->getc_buf) { + sl_pp_context_destroy(context); + return NULL; + } + + context->macro_tail = &context->macro; + context->if_ptr = SL_PP_MAX_IF_NESTING; + context->if_value = 1; + memset(context->error_msg, 0, sizeof(context->error_msg)); + context->line = 1; + context->file = 0; + + return context; +} + +void +sl_pp_context_destroy(struct sl_pp_context *context) +{ + if (context) { + free(context->cstr_pool); + sl_pp_macro_free(context->macro); + free(context->getc_buf); + free(context); + } +} + +const char * +sl_pp_context_error_message(const struct sl_pp_context *context) +{ + return context->error_msg; +} + +int +sl_pp_context_add_predefined(struct sl_pp_context *context, + const char *name, + const char *value) +{ + struct sl_pp_predefined pre; + + if (context->num_predefined == SL_PP_MAX_PREDEFINED) { + return -1; + } + + pre.name = sl_pp_context_add_unique_str(context, name); + if (pre.name == -1) { + return -1; + } + + pre.value = sl_pp_context_add_unique_str(context, value); + if (pre.value == -1) { + return -1; + } + + context->predefined[context->num_predefined++] = pre; + return 0; +} + +int +sl_pp_context_add_unique_str(struct sl_pp_context *context, + const char *str) +{ + unsigned int size; + unsigned int offset = 0; + + size = strlen(str) + 1; + + /* Find out if this is a unique string. */ + while (offset < context->cstr_pool_len) { + const char *str2; + unsigned int size2; + + str2 = &context->cstr_pool[offset]; + size2 = strlen(str2) + 1; + if (size == size2 && !memcmp(str, str2, size - 1)) { + return offset; + } + + offset += size2; + } + + if (context->cstr_pool_len + size > context->cstr_pool_max) { + context->cstr_pool_max = (context->cstr_pool_len + size + 0xffff) & ~0xffff; + context->cstr_pool = realloc(context->cstr_pool, context->cstr_pool_max); + } + + if (!context->cstr_pool) { + strcpy(context->error_msg, "out of memory"); + return -1; + } + + offset = context->cstr_pool_len; + memcpy(&context->cstr_pool[offset], str, size); + context->cstr_pool_len += size; + + return offset; +} + +const char * +sl_pp_context_cstr(const struct sl_pp_context *context, + int offset) +{ + if (offset == -1) { + return NULL; + } + return &context->cstr_pool[offset]; +} diff --git a/src/glsl/pp/sl_pp_context.h b/src/glsl/pp/sl_pp_context.h new file mode 100644 index 00000000000..d95d29e275c --- /dev/null +++ b/src/glsl/pp/sl_pp_context.h @@ -0,0 +1,85 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#ifndef SL_PP_CONTEXT_H +#define SL_PP_CONTEXT_H + +#include "sl_pp_dict.h" +#include "sl_pp_macro.h" +#include "sl_pp_purify.h" + + +#define SL_PP_MAX_IF_NESTING 64 + +#define SL_PP_MAX_ERROR_MSG 1024 + +#define SL_PP_MAX_EXTENSIONS 16 + +#define SL_PP_MAX_PREDEFINED 16 + +struct sl_pp_extension { + int name; /*< VENDOR_extension_name */ + int name_string; /*< GL_VENDOR_extension_name */ +}; + +struct sl_pp_predefined { + int name; + int value; +}; + +struct sl_pp_context { + char *cstr_pool; + unsigned int cstr_pool_max; + unsigned int cstr_pool_len; + struct sl_pp_dict dict; + + struct sl_pp_macro *macro; + struct sl_pp_macro **macro_tail; + + struct sl_pp_extension extensions[SL_PP_MAX_EXTENSIONS]; + unsigned int num_extensions; + + struct sl_pp_predefined predefined[SL_PP_MAX_PREDEFINED]; + unsigned int num_predefined; + + unsigned int if_stack[SL_PP_MAX_IF_NESTING]; + unsigned int if_ptr; + unsigned int if_value; + + char error_msg[SL_PP_MAX_ERROR_MSG]; + + unsigned int line; + unsigned int file; + + struct sl_pp_purify_state pure; + + char *getc_buf; + unsigned int getc_buf_size; + unsigned int getc_buf_capacity; +}; + +#endif /* SL_PP_CONTEXT_H */ diff --git a/src/glsl/pp/sl_pp_define.c b/src/glsl/pp/sl_pp_define.c new file mode 100644 index 00000000000..e004c9f95b9 --- /dev/null +++ b/src/glsl/pp/sl_pp_define.c @@ -0,0 +1,237 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include <stdlib.h> +#include <string.h> +#include "sl_pp_process.h" +#include "sl_pp_public.h" + + +static void +skip_whitespace(const struct sl_pp_token_info *input, + unsigned int *first, + unsigned int last) +{ + while (*first < last && input[*first].token == SL_PP_WHITESPACE) { + (*first)++; + } +} + + +static int +_parse_formal_args(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int *first, + unsigned int last, + struct sl_pp_macro *macro) +{ + struct sl_pp_macro_formal_arg **arg; + + macro->num_args = 0; + + skip_whitespace(input, first, last); + if (*first < last) { + if (input[*first].token == SL_PP_RPAREN) { + (*first)++; + return 0; + } + } else { + strcpy(context->error_msg, "expected either macro formal argument or `)'"); + return -1; + } + + arg = ¯o->arg; + + for (;;) { + if (*first < last && input[*first].token != SL_PP_IDENTIFIER) { + strcpy(context->error_msg, "expected macro formal argument"); + return -1; + } + + *arg = malloc(sizeof(struct sl_pp_macro_formal_arg)); + if (!*arg) { + strcpy(context->error_msg, "out of memory"); + return -1; + } + + (**arg).name = input[*first].data.identifier; + (*first)++; + + (**arg).next = NULL; + arg = &(**arg).next; + + macro->num_args++; + + skip_whitespace(input, first, last); + if (*first < last) { + if (input[*first].token == SL_PP_COMMA) { + (*first)++; + skip_whitespace(input, first, last); + } else if (input[*first].token == SL_PP_RPAREN) { + (*first)++; + return 0; + } else { + strcpy(context->error_msg, "expected either `,' or `)'"); + return -1; + } + } else { + strcpy(context->error_msg, "expected either `,' or `)'"); + return -1; + } + } + + /* Should not gete here. */ +} + + +int +sl_pp_process_define(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int first, + unsigned int last) +{ + int macro_name = -1; + struct sl_pp_macro *macro; + unsigned int i; + unsigned int body_len; + unsigned int j; + + if (first < last && input[first].token == SL_PP_IDENTIFIER) { + macro_name = input[first].data.identifier; + first++; + } + if (macro_name == -1) { + strcpy(context->error_msg, "expected macro name"); + return -1; + } + + /* Check for reserved macro names */ + { + const char *name = sl_pp_context_cstr(context, macro_name); + + if (strstr(name, "__")) { + strcpy(context->error_msg, "macro names containing `__' are reserved"); + return 1; + } + if (name[0] == 'G' && name[1] == 'L' && name[2] == '_') { + strcpy(context->error_msg, "macro names prefixed with `GL_' are reserved"); + return 1; + } + } + + for (macro = context->macro; macro; macro = macro->next) { + if (macro->name == macro_name) { + break; + } + } + + if (!macro) { + macro = sl_pp_macro_new(); + if (!macro) { + strcpy(context->error_msg, "out of memory"); + return -1; + } + + *context->macro_tail = macro; + context->macro_tail = ¯o->next; + } else { + sl_pp_macro_reset(macro); + } + + macro->name = macro_name; + + /* + * If there is no whitespace between macro name and left paren, a macro + * formal argument list follows. This is the only place where the presence + * of a whitespace matters and it's the only reason why we are dealing + * with whitespace at this level. + */ + if (first < last && input[first].token == SL_PP_LPAREN) { + first++; + if (_parse_formal_args(context, input, &first, last, macro)) { + return -1; + } + } + + /* Calculate body size, trim out whitespace, make room for EOF. */ + body_len = 1; + for (i = first; i < last; i++) { + if (input[i].token != SL_PP_WHITESPACE) { + body_len++; + } + } + + macro->body = malloc(sizeof(struct sl_pp_token_info) * body_len); + if (!macro->body) { + strcpy(context->error_msg, "out of memory"); + return -1; + } + + for (j = 0, i = first; i < last; i++) { + if (input[i].token != SL_PP_WHITESPACE) { + macro->body[j++] = input[i]; + } + } + macro->body[j++].token = SL_PP_EOF; + + return 0; +} + + +int +sl_pp_process_undef(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int first, + unsigned int last) +{ + int macro_name = -1; + struct sl_pp_macro **pmacro; + struct sl_pp_macro *macro; + + if (first < last && input[first].token == SL_PP_IDENTIFIER) { + macro_name = input[first].data.identifier; + } + if (macro_name == -1) { + return 0; + } + + for (pmacro = &context->macro; *pmacro; pmacro = &(**pmacro).next) { + if ((**pmacro).name == macro_name) { + break; + } + } + if (!*pmacro) { + return 0; + } + + macro = *pmacro; + *pmacro = macro->next; + macro->next = NULL; + sl_pp_macro_free(macro); + + return 0; +} diff --git a/src/glsl/pp/sl_pp_dict.c b/src/glsl/pp/sl_pp_dict.c new file mode 100644 index 00000000000..062139e6ac0 --- /dev/null +++ b/src/glsl/pp/sl_pp_dict.c @@ -0,0 +1,85 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include "sl_pp_public.h" +#include "sl_pp_context.h" +#include "sl_pp_dict.h" + + +#define ADD_NAME_STR(CTX, NAME, STR)\ + do {\ + (CTX)->dict.NAME = sl_pp_context_add_unique_str((CTX), (STR));\ + if ((CTX)->dict.NAME == -1) {\ + return -1;\ + }\ + } while (0) + +#define ADD_NAME(CTX, NAME) ADD_NAME_STR(CTX, NAME, #NAME) + + +int +sl_pp_dict_init(struct sl_pp_context *context) +{ + ADD_NAME(context, all); + + ADD_NAME(context, require); + ADD_NAME(context, enable); + ADD_NAME(context, warn); + ADD_NAME(context, disable); + + ADD_NAME(context, defined); + + ADD_NAME_STR(context, ___LINE__, "__LINE__"); + ADD_NAME_STR(context, ___FILE__, "__FILE__"); + ADD_NAME_STR(context, ___VERSION__, "__VERSION__"); + + ADD_NAME(context, optimize); + ADD_NAME(context, debug); + + ADD_NAME(context, off); + ADD_NAME(context, on); + + ADD_NAME(context, define); + ADD_NAME(context, elif); + ADD_NAME_STR(context, _else, "else"); + ADD_NAME(context, endif); + ADD_NAME(context, error); + ADD_NAME(context, extension); + ADD_NAME_STR(context, _if, "if"); + ADD_NAME(context, ifdef); + ADD_NAME(context, ifndef); + ADD_NAME(context, line); + ADD_NAME(context, pragma); + ADD_NAME(context, undef); + + ADD_NAME(context, version); + + ADD_NAME_STR(context, _0, "0"); + ADD_NAME_STR(context, _1, "1"); + + return 0; +} diff --git a/src/glsl/pp/sl_pp_dict.h b/src/glsl/pp/sl_pp_dict.h new file mode 100644 index 00000000000..875217bd309 --- /dev/null +++ b/src/glsl/pp/sl_pp_dict.h @@ -0,0 +1,77 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#ifndef SL_PP_DICT_H +#define SL_PP_DICT_H + + +struct sl_pp_context; + +struct sl_pp_dict { + int all; + + int require; + int enable; + int warn; + int disable; + + int defined; + + int ___LINE__; + int ___FILE__; + int ___VERSION__; + + int optimize; + int debug; + + int off; + int on; + + int define; + int elif; + int _else; + int endif; + int error; + int extension; + int _if; + int ifdef; + int ifndef; + int line; + int pragma; + int undef; + + int version; + + int _0; + int _1; +}; + + +int +sl_pp_dict_init(struct sl_pp_context *context); + +#endif /* SL_PP_DICT_H */ diff --git a/src/glsl/pp/sl_pp_error.c b/src/glsl/pp/sl_pp_error.c new file mode 100644 index 00000000000..a9eeff98ba5 --- /dev/null +++ b/src/glsl/pp/sl_pp_error.c @@ -0,0 +1,269 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include <stdlib.h> +#include <string.h> +#include "sl_pp_process.h" +#include "sl_pp_public.h" + + +void +sl_pp_process_error(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int first, + unsigned int last) +{ + unsigned int out_len = 0; + unsigned int i; + + for (i = first; i < last; i++) { + const char *s = NULL; + char buf[2]; + + switch (input[i].token) { + case SL_PP_WHITESPACE: + s = " "; + break; + + case SL_PP_NEWLINE: + s = "\n"; + break; + + case SL_PP_HASH: + s = "#"; + break; + + case SL_PP_COMMA: + s = ","; + break; + + case SL_PP_SEMICOLON: + s = ";"; + break; + + case SL_PP_LBRACE: + s = "{"; + break; + + case SL_PP_RBRACE: + s = "}"; + break; + + case SL_PP_LPAREN: + s = "("; + break; + + case SL_PP_RPAREN: + s = ")"; + break; + + case SL_PP_LBRACKET: + s = "["; + break; + + case SL_PP_RBRACKET: + s = "]"; + break; + + case SL_PP_DOT: + s = "."; + break; + + case SL_PP_INCREMENT: + s = "++"; + break; + + case SL_PP_ADDASSIGN: + s = "+="; + break; + + case SL_PP_PLUS: + s = "+"; + break; + + case SL_PP_DECREMENT: + s = "--"; + break; + + case SL_PP_SUBASSIGN: + s = "-="; + break; + + case SL_PP_MINUS: + s = "-"; + break; + + case SL_PP_BITNOT: + s = "~"; + break; + + case SL_PP_NOTEQUAL: + s = "!="; + break; + + case SL_PP_NOT: + s = "!"; + break; + + case SL_PP_MULASSIGN: + s = "*="; + break; + + case SL_PP_STAR: + s = "*"; + break; + + case SL_PP_DIVASSIGN: + s = "/="; + break; + + case SL_PP_SLASH: + s = "/"; + break; + + case SL_PP_MODASSIGN: + s = "%="; + break; + + case SL_PP_MODULO: + s = "%"; + break; + + case SL_PP_LSHIFTASSIGN: + s = "<<="; + break; + + case SL_PP_LSHIFT: + s = "<<"; + break; + + case SL_PP_LESSEQUAL: + s = "<="; + break; + + case SL_PP_LESS: + s = "<"; + break; + + case SL_PP_RSHIFTASSIGN: + s = ">>="; + break; + + case SL_PP_RSHIFT: + s = ">>"; + break; + + case SL_PP_GREATEREQUAL: + s = ">="; + break; + + case SL_PP_GREATER: + s = ">"; + break; + + case SL_PP_EQUAL: + s = "=="; + break; + + case SL_PP_ASSIGN: + s = "="; + break; + + case SL_PP_AND: + s = "&&"; + break; + + case SL_PP_BITANDASSIGN: + s = "&="; + break; + + case SL_PP_BITAND: + s = "&"; + break; + + case SL_PP_XOR: + s = "^^"; + break; + + case SL_PP_BITXORASSIGN: + s = "^="; + break; + + case SL_PP_BITXOR: + s = "^"; + break; + + case SL_PP_OR: + s = "||"; + break; + + case SL_PP_BITORASSIGN: + s = "|="; + break; + + case SL_PP_BITOR: + s = "|"; + break; + + case SL_PP_QUESTION: + s = "?"; + break; + + case SL_PP_COLON: + s = ":"; + break; + + case SL_PP_IDENTIFIER: + s = sl_pp_context_cstr(context, input[i].data.identifier); + break; + + case SL_PP_UINT: + s = sl_pp_context_cstr(context, input[i].data._uint); + break; + + case SL_PP_FLOAT: + s = sl_pp_context_cstr(context, input[i].data._float); + break; + + case SL_PP_OTHER: + buf[0] = input[i].data.other; + buf[1] = '\0'; + s = buf; + break; + + default: + strcpy(context->error_msg, "internal error"); + return; + } + + while (*s != '\0' && out_len < sizeof(context->error_msg) - 1) { + context->error_msg[out_len++] = *s++; + } + } + + context->error_msg[out_len] = '\0'; +} diff --git a/src/glsl/pp/sl_pp_expression.c b/src/glsl/pp/sl_pp_expression.c new file mode 100644 index 00000000000..ec904787dd7 --- /dev/null +++ b/src/glsl/pp/sl_pp_expression.c @@ -0,0 +1,411 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include <stdlib.h> +#include <string.h> +#include "sl_pp_expression.h" +#include "sl_pp_public.h" + + +struct parse_context { + struct sl_pp_context *context; + const struct sl_pp_token_info *input; +}; + +static int +_parse_or(struct parse_context *ctx, + int *result); + +static int +_parse_primary(struct parse_context *ctx, + int *result) +{ + if (ctx->input->token == SL_PP_UINT) { + *result = atoi(sl_pp_context_cstr(ctx->context, ctx->input->data._uint)); + ctx->input++; + } else { + if (ctx->input->token != SL_PP_LPAREN) { + strcpy(ctx->context->error_msg, "expected `('"); + return -1; + } + ctx->input++; + if (_parse_or(ctx, result)) { + return -1; + } + if (ctx->input->token != SL_PP_RPAREN) { + strcpy(ctx->context->error_msg, "expected `)'"); + return -1; + } + ctx->input++; + } + return 0; +} + +static int +_parse_unary(struct parse_context *ctx, + int *result) +{ + if (!_parse_primary(ctx, result)) { + return 0; + } + + switch (ctx->input->token) { + case SL_PP_PLUS: + ctx->input++; + if (_parse_unary(ctx, result)) { + return -1; + } + *result = +*result; + break; + + case SL_PP_MINUS: + ctx->input++; + if (_parse_unary(ctx, result)) { + return -1; + } + *result = -*result; + break; + + case SL_PP_NOT: + ctx->input++; + if (_parse_unary(ctx, result)) { + return -1; + } + *result = !*result; + break; + + case SL_PP_BITNOT: + ctx->input++; + if (_parse_unary(ctx, result)) { + return -1; + } + *result = ~*result; + break; + + default: + return -1; + } + + return 0; +} + +static int +_parse_multiplicative(struct parse_context *ctx, + int *result) +{ + if (_parse_unary(ctx, result)) { + return -1; + } + for (;;) { + int right; + + switch (ctx->input->token) { + case SL_PP_STAR: + ctx->input++; + if (_parse_unary(ctx, &right)) { + return -1; + } + *result = *result * right; + break; + + case SL_PP_SLASH: + ctx->input++; + if (_parse_unary(ctx, &right)) { + return -1; + } + *result = *result / right; + break; + + case SL_PP_MODULO: + ctx->input++; + if (_parse_unary(ctx, &right)) { + return -1; + } + *result = *result % right; + break; + + default: + return 0; + } + } +} + +static int +_parse_additive(struct parse_context *ctx, + int *result) +{ + if (_parse_multiplicative(ctx, result)) { + return -1; + } + for (;;) { + int right; + + switch (ctx->input->token) { + case SL_PP_PLUS: + ctx->input++; + if (_parse_multiplicative(ctx, &right)) { + return -1; + } + *result = *result + right; + break; + + case SL_PP_MINUS: + ctx->input++; + if (_parse_multiplicative(ctx, &right)) { + return -1; + } + *result = *result - right; + break; + + default: + return 0; + } + } +} + +static int +_parse_shift(struct parse_context *ctx, + int *result) +{ + if (_parse_additive(ctx, result)) { + return -1; + } + for (;;) { + int right; + + switch (ctx->input->token) { + case SL_PP_LSHIFT: + ctx->input++; + if (_parse_additive(ctx, &right)) { + return -1; + } + *result = *result << right; + break; + + case SL_PP_RSHIFT: + ctx->input++; + if (_parse_additive(ctx, &right)) { + return -1; + } + *result = *result >> right; + break; + + default: + return 0; + } + } +} + +static int +_parse_relational(struct parse_context *ctx, + int *result) +{ + if (_parse_shift(ctx, result)) { + return -1; + } + for (;;) { + int right; + + switch (ctx->input->token) { + case SL_PP_LESSEQUAL: + ctx->input++; + if (_parse_shift(ctx, &right)) { + return -1; + } + *result = *result <= right; + break; + + case SL_PP_GREATEREQUAL: + ctx->input++; + if (_parse_shift(ctx, &right)) { + return -1; + } + *result = *result >= right; + break; + + case SL_PP_LESS: + ctx->input++; + if (_parse_shift(ctx, &right)) { + return -1; + } + *result = *result < right; + break; + + case SL_PP_GREATER: + ctx->input++; + if (_parse_shift(ctx, &right)) { + return -1; + } + *result = *result > right; + break; + + default: + return 0; + } + } +} + +static int +_parse_equality(struct parse_context *ctx, + int *result) +{ + if (_parse_relational(ctx, result)) { + return -1; + } + for (;;) { + int right; + + switch (ctx->input->token) { + case SL_PP_EQUAL: + ctx->input++; + if (_parse_relational(ctx, &right)) { + return -1; + } + *result = *result == right; + break; + + case SL_PP_NOTEQUAL: + ctx->input++; + if (_parse_relational(ctx, &right)) { + return -1; + } + *result = *result != right; + break; + + default: + return 0; + } + } +} + +static int +_parse_bitand(struct parse_context *ctx, + int *result) +{ + if (_parse_equality(ctx, result)) { + return -1; + } + while (ctx->input->token == SL_PP_BITAND) { + int right; + + ctx->input++; + if (_parse_equality(ctx, &right)) { + return -1; + } + *result = *result & right; + } + return 0; +} + +static int +_parse_xor(struct parse_context *ctx, + int *result) +{ + if (_parse_bitand(ctx, result)) { + return -1; + } + while (ctx->input->token == SL_PP_XOR) { + int right; + + ctx->input++; + if (_parse_bitand(ctx, &right)) { + return -1; + } + *result = *result ^ right; + } + return 0; +} + +static int +_parse_bitor(struct parse_context *ctx, + int *result) +{ + if (_parse_xor(ctx, result)) { + return -1; + } + while (ctx->input->token == SL_PP_BITOR) { + int right; + + ctx->input++; + if (_parse_xor(ctx, &right)) { + return -1; + } + *result = *result | right; + } + return 0; +} + +static int +_parse_and(struct parse_context *ctx, + int *result) +{ + if (_parse_bitor(ctx, result)) { + return -1; + } + while (ctx->input->token == SL_PP_AND) { + int right; + + ctx->input++; + if (_parse_bitor(ctx, &right)) { + return -1; + } + *result = *result && right; + } + return 0; +} + +static int +_parse_or(struct parse_context *ctx, + int *result) +{ + if (_parse_and(ctx, result)) { + return -1; + } + while (ctx->input->token == SL_PP_OR) { + int right; + + ctx->input++; + if (_parse_and(ctx, &right)) { + return -1; + } + *result = *result || right; + } + return 0; +} + +int +sl_pp_execute_expression(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + int *result) +{ + struct parse_context ctx; + + ctx.context = context; + ctx.input = input; + + return _parse_or(&ctx, result); +} diff --git a/src/glsl/pp/sl_pp_expression.h b/src/glsl/pp/sl_pp_expression.h new file mode 100644 index 00000000000..377d5b4cbd9 --- /dev/null +++ b/src/glsl/pp/sl_pp_expression.h @@ -0,0 +1,40 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#ifndef SL_PP_EXPRESSION_H +#define SL_PP_EXPRESSION_H + +#include "sl_pp_context.h" +#include "sl_pp_token.h" + + +int +sl_pp_execute_expression(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + int *result); + +#endif /* SL_PP_EXPRESSION_H */ diff --git a/src/glsl/pp/sl_pp_extension.c b/src/glsl/pp/sl_pp_extension.c new file mode 100644 index 00000000000..67b24404d4d --- /dev/null +++ b/src/glsl/pp/sl_pp_extension.c @@ -0,0 +1,170 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include <stdlib.h> +#include <string.h> +#include "sl_pp_process.h" +#include "sl_pp_public.h" + + +int +sl_pp_context_add_extension(struct sl_pp_context *context, + const char *name, + const char *name_string) +{ + struct sl_pp_extension ext; + + if (context->num_extensions == SL_PP_MAX_EXTENSIONS) { + return -1; + } + + ext.name = sl_pp_context_add_unique_str(context, name); + if (ext.name == -1) { + return -1; + } + + ext.name_string = sl_pp_context_add_unique_str(context, name_string); + if (ext.name_string == -1) { + return -1; + } + + context->extensions[context->num_extensions++] = ext; + return 0; +} + +int +sl_pp_process_extension(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int first, + unsigned int last, + struct sl_pp_process_state *state) +{ + int extension_name = -1; + int behavior = -1; + struct sl_pp_token_info out; + + /* Grab the extension name. */ + if (first < last && input[first].token == SL_PP_IDENTIFIER) { + extension_name = input[first].data.identifier; + first++; + } + if (extension_name == -1) { + strcpy(context->error_msg, "expected identifier after `#extension'"); + return -1; + } + + /* Make sure the extension is supported. */ + if (extension_name == context->dict.all) { + out.data.extension = extension_name; + } else { + unsigned int i; + + out.data.extension = -1; + for (i = 0; i < context->num_extensions; i++) { + if (extension_name == context->extensions[i].name_string) { + out.data.extension = extension_name; + break; + } + } + } + + /* Grab the colon separating the extension name and behavior. */ + while (first < last && input[first].token == SL_PP_WHITESPACE) { + first++; + } + if (first < last && input[first].token == SL_PP_COLON) { + first++; + } else { + strcpy(context->error_msg, "expected `:' after extension name"); + return -1; + } + while (first < last && input[first].token == SL_PP_WHITESPACE) { + first++; + } + + /* Grab the behavior name. */ + if (first < last && input[first].token == SL_PP_IDENTIFIER) { + behavior = input[first].data.identifier; + first++; + } + if (behavior == -1) { + strcpy(context->error_msg, "expected identifier after `:'"); + return -1; + } + + if (behavior == context->dict.require) { + if (out.data.extension == -1) { + strcpy(context->error_msg, "the required extension is not supported"); + return -1; + } + if (out.data.extension == context->dict.all) { + strcpy(context->error_msg, "invalid behavior for `all' extension: `require'"); + return -1; + } + out.token = SL_PP_EXTENSION_REQUIRE; + } else if (behavior == context->dict.enable) { + if (out.data.extension == -1) { + /* Warning: the extension cannot be enabled. */ + return 0; + } + if (out.data.extension == context->dict.all) { + strcpy(context->error_msg, "invalid behavior for `all' extension: `enable'"); + return -1; + } + out.token = SL_PP_EXTENSION_ENABLE; + } else if (behavior == context->dict.warn) { + if (out.data.extension == -1) { + /* Warning: the extension is not supported. */ + return 0; + } + out.token = SL_PP_EXTENSION_WARN; + } else if (behavior == context->dict.disable) { + if (out.data.extension == -1) { + /* Warning: the extension is not supported. */ + return 0; + } + out.token = SL_PP_EXTENSION_DISABLE; + } else { + strcpy(context->error_msg, "unrecognised behavior name"); + return -1; + } + + /* Grab the end of line. */ + while (first < last && input[first].token == SL_PP_WHITESPACE) { + first++; + } + if (first < last) { + strcpy(context->error_msg, "expected end of line after behavior name"); + return -1; + } + + if (sl_pp_process_out(state, &out)) { + return -1; + } + + return 0; +} diff --git a/src/glsl/pp/sl_pp_if.c b/src/glsl/pp/sl_pp_if.c new file mode 100644 index 00000000000..6610bc69f3c --- /dev/null +++ b/src/glsl/pp/sl_pp_if.c @@ -0,0 +1,349 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include <stdlib.h> +#include <string.h> +#include "sl_pp_expression.h" +#include "sl_pp_process.h" + + +static void +skip_whitespace(const struct sl_pp_token_info *input, + unsigned int *pi) +{ + while (input[*pi].token == SL_PP_WHITESPACE) { + (*pi)++; + } +} + +static int +_parse_defined(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int *pi, + struct sl_pp_process_state *state) +{ + int parens = 0; + int macro_name; + struct sl_pp_macro *macro; + int defined = 0; + struct sl_pp_token_info result; + + skip_whitespace(input, pi); + if (input[*pi].token == SL_PP_LPAREN) { + (*pi)++; + skip_whitespace(input, pi); + parens = 1; + } + + if (input[*pi].token != SL_PP_IDENTIFIER) { + strcpy(context->error_msg, "expected an identifier"); + return -1; + } + + macro_name = input[*pi].data.identifier; + for (macro = context->macro; macro; macro = macro->next) { + if (macro->name == macro_name) { + defined = 1; + break; + } + } + (*pi)++; + + if (parens) { + skip_whitespace(input, pi); + if (input[*pi].token != SL_PP_RPAREN) { + strcpy(context->error_msg, "expected `)'"); + return -1; + } + (*pi)++; + } + + result.token = SL_PP_UINT; + result.data._uint = (defined ? context->dict._1 : context->dict._0); + + if (sl_pp_process_out(state, &result)) { + strcpy(context->error_msg, "out of memory"); + return -1; + } + + return 0; +} + +static unsigned int +_evaluate_if_stack(struct sl_pp_context *context) +{ + unsigned int i; + + for (i = context->if_ptr; i < SL_PP_MAX_IF_NESTING; i++) { + if (!(context->if_stack[i] & 1)) { + return 0; + } + } + return 1; +} + +static int +_parse_if(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int first, + unsigned int last) +{ + unsigned int i; + struct sl_pp_process_state state; + struct sl_pp_token_info eof; + int result; + + if (!context->if_ptr) { + strcpy(context->error_msg, "`#if' nesting too deep"); + return -1; + } + + memset(&state, 0, sizeof(state)); + for (i = first; i < last;) { + switch (input[i].token) { + case SL_PP_WHITESPACE: + i++; + break; + + case SL_PP_IDENTIFIER: + if (input[i].data.identifier == context->dict.defined) { + i++; + if (_parse_defined(context, input, &i, &state)) { + free(state.out); + return -1; + } + } else { + if (sl_pp_macro_expand(context, input, &i, NULL, &state, sl_pp_macro_expand_unknown_to_0)) { + free(state.out); + return -1; + } + } + break; + + default: + if (sl_pp_process_out(&state, &input[i])) { + strcpy(context->error_msg, "out of memory"); + free(state.out); + return -1; + } + i++; + } + } + + eof.token = SL_PP_EOF; + if (sl_pp_process_out(&state, &eof)) { + strcpy(context->error_msg, "out of memory"); + free(state.out); + return -1; + } + + if (sl_pp_execute_expression(context, state.out, &result)) { + free(state.out); + return -1; + } + + free(state.out); + + context->if_ptr--; + context->if_stack[context->if_ptr] = result ? 1 : 0; + context->if_value = _evaluate_if_stack(context); + + return 0; +} + +static int +_parse_else(struct sl_pp_context *context) +{ + if (context->if_ptr == SL_PP_MAX_IF_NESTING) { + strcpy(context->error_msg, "no matching `#if'"); + return -1; + } + + /* Bit b1 indicates we already went through #else. */ + if (context->if_stack[context->if_ptr] & 2) { + strcpy(context->error_msg, "no matching `#if'"); + return -1; + } + + /* Invert current condition value and mark that we are in the #else block. */ + context->if_stack[context->if_ptr] = (1 - (context->if_stack[context->if_ptr] & 1)) | 2; + context->if_value = _evaluate_if_stack(context); + + return 0; +} + +int +sl_pp_process_if(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int first, + unsigned int last) +{ + return _parse_if(context, input, first, last); +} + +int +sl_pp_process_ifdef(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int first, + unsigned int last) +{ + unsigned int i; + + if (!context->if_ptr) { + strcpy(context->error_msg, "`#if' nesting too deep"); + return -1; + } + + for (i = first; i < last; i++) { + switch (input[i].token) { + case SL_PP_IDENTIFIER: + { + struct sl_pp_macro *macro; + int macro_name = input[i].data.identifier; + int defined = 0; + + for (macro = context->macro; macro; macro = macro->next) { + if (macro->name == macro_name) { + defined = 1; + break; + } + } + + context->if_ptr--; + context->if_stack[context->if_ptr] = defined ? 1 : 0; + context->if_value = _evaluate_if_stack(context); + } + return 0; + + case SL_PP_WHITESPACE: + break; + + default: + strcpy(context->error_msg, "expected an identifier"); + return -1; + } + } + + strcpy(context->error_msg, "expected an identifier"); + return -1; +} + +int +sl_pp_process_ifndef(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int first, + unsigned int last) +{ + unsigned int i; + + if (!context->if_ptr) { + strcpy(context->error_msg, "`#if' nesting too deep"); + return -1; + } + + for (i = first; i < last; i++) { + switch (input[i].token) { + case SL_PP_IDENTIFIER: + { + struct sl_pp_macro *macro; + int macro_name = input[i].data.identifier; + int defined = 0; + + for (macro = context->macro; macro; macro = macro->next) { + if (macro->name == macro_name) { + defined = 1; + break; + } + } + + context->if_ptr--; + context->if_stack[context->if_ptr] = defined ? 0 : 1; + context->if_value = _evaluate_if_stack(context); + } + return 0; + + case SL_PP_WHITESPACE: + break; + + default: + strcpy(context->error_msg, "expected an identifier"); + return -1; + } + } + + strcpy(context->error_msg, "expected an identifier"); + return -1; +} + +int +sl_pp_process_elif(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int first, + unsigned int last) +{ + if (_parse_else(context)) { + return -1; + } + + if (context->if_stack[context->if_ptr] & 1) { + context->if_ptr++; + if (_parse_if(context, input, first, last)) { + return -1; + } + } + + /* We are still in the #if block. */ + context->if_stack[context->if_ptr] = context->if_stack[context->if_ptr] & ~2; + + return 0; +} + +int +sl_pp_process_else(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int first, + unsigned int last) +{ + return _parse_else(context); +} + +int +sl_pp_process_endif(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int first, + unsigned int last) +{ + if (context->if_ptr == SL_PP_MAX_IF_NESTING) { + strcpy(context->error_msg, "no matching `#if'"); + return -1; + } + + context->if_ptr++; + context->if_value = _evaluate_if_stack(context); + + return 0; +} diff --git a/src/glsl/pp/sl_pp_line.c b/src/glsl/pp/sl_pp_line.c new file mode 100644 index 00000000000..ed5acc697ce --- /dev/null +++ b/src/glsl/pp/sl_pp_line.c @@ -0,0 +1,121 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include <stdlib.h> +#include <string.h> +#include "sl_pp_public.h" +#include "sl_pp_process.h" + + +int +sl_pp_process_line(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int first, + unsigned int last, + struct sl_pp_process_state *pstate) +{ + unsigned int i; + struct sl_pp_process_state state; + int line_number = -1; + int file_number = -1; + unsigned int line; + unsigned int file; + + memset(&state, 0, sizeof(state)); + for (i = first; i < last;) { + switch (input[i].token) { + case SL_PP_WHITESPACE: + i++; + break; + + case SL_PP_IDENTIFIER: + if (sl_pp_macro_expand(context, input, &i, NULL, &state, sl_pp_macro_expand_normal)) { + free(state.out); + return -1; + } + break; + + default: + if (sl_pp_process_out(&state, &input[i])) { + strcpy(context->error_msg, "out of memory"); + free(state.out); + return -1; + } + i++; + } + } + + if (state.out_len > 0 && state.out[0].token == SL_PP_UINT) { + line_number = state.out[0].data._uint; + } else { + strcpy(context->error_msg, "expected a number after `#line'"); + free(state.out); + return -1; + } + + if (state.out_len > 1) { + if (state.out[1].token == SL_PP_UINT) { + file_number = state.out[1].data._uint; + } else { + strcpy(context->error_msg, "expected a number after line number"); + free(state.out); + return -1; + } + + if (state.out_len > 2) { + strcpy(context->error_msg, "expected an end of line after file number"); + free(state.out); + return -1; + } + } + + free(state.out); + + line = atoi(sl_pp_context_cstr(context, line_number)); + if (file_number != -1) { + file = atoi(sl_pp_context_cstr(context, file_number)); + } else { + file = context->file; + } + + if (context->line != line || context->file != file) { + struct sl_pp_token_info ti; + + ti.token = SL_PP_LINE; + ti.data.line.lineno = line; + ti.data.line.fileno = file; + if (sl_pp_process_out(pstate, &ti)) { + strcpy(context->error_msg, "out of memory"); + return -1; + } + + context->line = line; + context->file = file; + } + + return 0; +} diff --git a/src/glsl/pp/sl_pp_macro.c b/src/glsl/pp/sl_pp_macro.c new file mode 100644 index 00000000000..08b44c7cbe4 --- /dev/null +++ b/src/glsl/pp/sl_pp_macro.c @@ -0,0 +1,397 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include "sl_pp_public.h" +#include "sl_pp_macro.h" +#include "sl_pp_process.h" + + +static void +_macro_init(struct sl_pp_macro *macro) +{ + macro->name = -1; + macro->num_args = -1; + macro->arg = NULL; + macro->body = NULL; +} + +struct sl_pp_macro * +sl_pp_macro_new(void) +{ + struct sl_pp_macro *macro; + + macro = calloc(1, sizeof(struct sl_pp_macro)); + if (macro) { + _macro_init(macro); + } + return macro; +} + +static void +_macro_destroy(struct sl_pp_macro *macro) +{ + struct sl_pp_macro_formal_arg *arg = macro->arg; + + while (arg) { + struct sl_pp_macro_formal_arg *next_arg = arg->next; + + free(arg); + arg = next_arg; + } + + free(macro->body); +} + +void +sl_pp_macro_free(struct sl_pp_macro *macro) +{ + while (macro) { + struct sl_pp_macro *next_macro = macro->next; + + _macro_destroy(macro); + free(macro); + macro = next_macro; + } +} + +void +sl_pp_macro_reset(struct sl_pp_macro *macro) +{ + _macro_destroy(macro); + _macro_init(macro); +} + +static void +skip_whitespace(const struct sl_pp_token_info *input, + unsigned int *pi) +{ + while (input[*pi].token == SL_PP_WHITESPACE) { + (*pi)++; + } +} + +static int +_out_number(struct sl_pp_context *context, + struct sl_pp_process_state *state, + unsigned int number) +{ + char buf[32]; + struct sl_pp_token_info ti; + + sprintf(buf, "%u", number); + + ti.token = SL_PP_UINT; + ti.data._uint = sl_pp_context_add_unique_str(context, buf); + if (sl_pp_process_out(state, &ti)) { + strcpy(context->error_msg, "out of memory"); + return -1; + } + + return 0; +} + +int +sl_pp_macro_expand(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int *pi, + struct sl_pp_macro *local, + struct sl_pp_process_state *state, + enum sl_pp_macro_expand_behaviour behaviour) +{ + int mute = (behaviour == sl_pp_macro_expand_mute); + int macro_name; + struct sl_pp_macro *macro = NULL; + struct sl_pp_macro *actual_arg = NULL; + unsigned int j; + + if (input[*pi].token != SL_PP_IDENTIFIER) { + strcpy(context->error_msg, "expected an identifier"); + return -1; + } + + macro_name = input[*pi].data.identifier; + + /* First look for predefined macros. + */ + + if (macro_name == context->dict.___LINE__) { + if (!mute && _out_number(context, state, context->line)) { + return -1; + } + (*pi)++; + return 0; + } + if (macro_name == context->dict.___FILE__) { + if (!mute && _out_number(context, state, context->file)) { + return -1; + } + (*pi)++; + return 0; + } + if (macro_name == context->dict.___VERSION__) { + if (!mute && _out_number(context, state, 110)) { + return -1; + } + (*pi)++; + return 0; + } + + for (j = 0; j < context->num_predefined; j++) { + if (macro_name == context->predefined[j].name) { + if (!mute) { + struct sl_pp_token_info ti; + + ti.token = SL_PP_UINT; + ti.data._uint = context->predefined[j].value; + if (sl_pp_process_out(state, &ti)) { + strcpy(context->error_msg, "out of memory"); + return -1; + } + } + (*pi)++; + return 0; + } + } + + /* Replace extension names with 1. + */ + for (j = 0; j < context->num_extensions; j++) { + if (macro_name == context->extensions[j].name) { + if (!mute && _out_number(context, state, 1)) { + return -1; + } + (*pi)++; + return 0; + } + } + + /* TODO: For FEATURE_es2_glsl, expand to 1 the following symbols. + * GL_ES + * GL_FRAGMENT_PRECISION_HIGH + */ + + if (local) { + for (macro = local; macro; macro = macro->next) { + if (macro->name == macro_name) { + break; + } + } + } + + if (!macro) { + for (macro = context->macro; macro; macro = macro->next) { + if (macro->name == macro_name) { + break; + } + } + } + + if (!macro) { + if (behaviour == sl_pp_macro_expand_unknown_to_0) { + if (_out_number(context, state, 0)) { + strcpy(context->error_msg, "out of memory"); + return -1; + } + } else if (!mute) { + if (sl_pp_process_out(state, &input[*pi])) { + strcpy(context->error_msg, "out of memory"); + return -1; + } + } + (*pi)++; + return 0; + } + + (*pi)++; + + if (macro->num_args >= 0) { + skip_whitespace(input, pi); + if (input[*pi].token != SL_PP_LPAREN) { + strcpy(context->error_msg, "expected `('"); + return -1; + } + (*pi)++; + skip_whitespace(input, pi); + } + + if (macro->num_args > 0) { + struct sl_pp_macro_formal_arg *formal_arg = macro->arg; + struct sl_pp_macro **pmacro = &actual_arg; + + for (j = 0; j < (unsigned int)macro->num_args; j++) { + struct sl_pp_process_state arg_state; + unsigned int i; + int done = 0; + unsigned int paren_nesting = 0; + struct sl_pp_token_info eof; + + memset(&arg_state, 0, sizeof(arg_state)); + + for (i = *pi; !done;) { + switch (input[i].token) { + case SL_PP_WHITESPACE: + i++; + break; + + case SL_PP_COMMA: + if (!paren_nesting) { + if (j < (unsigned int)macro->num_args - 1) { + done = 1; + i++; + } else { + strcpy(context->error_msg, "too many actual macro arguments"); + return -1; + } + } else { + if (sl_pp_process_out(&arg_state, &input[i])) { + strcpy(context->error_msg, "out of memory"); + free(arg_state.out); + return -1; + } + i++; + } + break; + + case SL_PP_LPAREN: + paren_nesting++; + if (sl_pp_process_out(&arg_state, &input[i])) { + strcpy(context->error_msg, "out of memory"); + free(arg_state.out); + return -1; + } + i++; + break; + + case SL_PP_RPAREN: + if (!paren_nesting) { + if (j == (unsigned int)macro->num_args - 1) { + done = 1; + i++; + } else { + strcpy(context->error_msg, "too few actual macro arguments"); + return -1; + } + } else { + paren_nesting--; + if (sl_pp_process_out(&arg_state, &input[i])) { + strcpy(context->error_msg, "out of memory"); + free(arg_state.out); + return -1; + } + i++; + } + break; + + case SL_PP_IDENTIFIER: + if (sl_pp_macro_expand(context, input, &i, local, &arg_state, sl_pp_macro_expand_normal)) { + free(arg_state.out); + return -1; + } + break; + + case SL_PP_EOF: + strcpy(context->error_msg, "too few actual macro arguments"); + return -1; + + default: + if (sl_pp_process_out(&arg_state, &input[i])) { + strcpy(context->error_msg, "out of memory"); + free(arg_state.out); + return -1; + } + i++; + } + } + + (*pi) = i; + + eof.token = SL_PP_EOF; + if (sl_pp_process_out(&arg_state, &eof)) { + strcpy(context->error_msg, "out of memory"); + free(arg_state.out); + return -1; + } + + *pmacro = sl_pp_macro_new(); + if (!*pmacro) { + strcpy(context->error_msg, "out of memory"); + free(arg_state.out); + return -1; + } + + (**pmacro).name = formal_arg->name; + (**pmacro).body = arg_state.out; + + formal_arg = formal_arg->next; + pmacro = &(**pmacro).next; + } + } + + /* Right paren for non-empty argument list has already been eaten. */ + if (macro->num_args == 0) { + skip_whitespace(input, pi); + if (input[*pi].token != SL_PP_RPAREN) { + strcpy(context->error_msg, "expected `)'"); + return -1; + } + (*pi)++; + } + + for (j = 0;;) { + switch (macro->body[j].token) { + case SL_PP_NEWLINE: + if (sl_pp_process_out(state, ¯o->body[j])) { + strcpy(context->error_msg, "out of memory"); + return -1; + } + j++; + break; + + case SL_PP_IDENTIFIER: + if (sl_pp_macro_expand(context, macro->body, &j, actual_arg, state, behaviour)) { + return -1; + } + break; + + case SL_PP_EOF: + sl_pp_macro_free(actual_arg); + return 0; + + default: + if (!mute) { + if (sl_pp_process_out(state, ¯o->body[j])) { + strcpy(context->error_msg, "out of memory"); + return -1; + } + } + j++; + } + } +} diff --git a/src/glsl/pp/sl_pp_macro.h b/src/glsl/pp/sl_pp_macro.h new file mode 100644 index 00000000000..3ad3438236a --- /dev/null +++ b/src/glsl/pp/sl_pp_macro.h @@ -0,0 +1,73 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#ifndef SL_PP_MACRO_H +#define SL_PP_MACRO_H + +#include "sl_pp_token.h" + + +struct sl_pp_context; +struct sl_pp_process_state; + +struct sl_pp_macro_formal_arg { + int name; + struct sl_pp_macro_formal_arg *next; +}; + +struct sl_pp_macro { + int name; + int num_args; /* -1 means no args, 0 means `()' */ + struct sl_pp_macro_formal_arg *arg; + struct sl_pp_token_info *body; + struct sl_pp_macro *next; +}; + +struct sl_pp_macro * +sl_pp_macro_new(void); + +void +sl_pp_macro_free(struct sl_pp_macro *macro); + +void +sl_pp_macro_reset(struct sl_pp_macro *macro); + +enum sl_pp_macro_expand_behaviour { + sl_pp_macro_expand_normal, + sl_pp_macro_expand_mute, + sl_pp_macro_expand_unknown_to_0 +}; + +int +sl_pp_macro_expand(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int *pi, + struct sl_pp_macro *local, + struct sl_pp_process_state *state, + enum sl_pp_macro_expand_behaviour behaviour); + +#endif /* SL_PP_MACRO_H */ diff --git a/src/glsl/pp/sl_pp_pragma.c b/src/glsl/pp/sl_pp_pragma.c new file mode 100644 index 00000000000..489eb17b8eb --- /dev/null +++ b/src/glsl/pp/sl_pp_pragma.c @@ -0,0 +1,108 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include <stdlib.h> +#include <string.h> +#include "sl_pp_process.h" + + +int +sl_pp_process_pragma(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int first, + unsigned int last, + struct sl_pp_process_state *state) +{ + int pragma_name = -1; + struct sl_pp_token_info out; + int arg_name = -1; + + if (first < last && input[first].token == SL_PP_IDENTIFIER) { + pragma_name = input[first].data.identifier; + first++; + } + if (pragma_name == -1) { + return 0; + } + + if (pragma_name == context->dict.optimize) { + out.token = SL_PP_PRAGMA_OPTIMIZE; + } else if (pragma_name == context->dict.debug) { + out.token = SL_PP_PRAGMA_DEBUG; + } else { + return 0; + } + + while (first < last && input[first].token == SL_PP_WHITESPACE) { + first++; + } + + if (first < last && input[first].token == SL_PP_LPAREN) { + first++; + } else { + return 0; + } + + while (first < last && input[first].token == SL_PP_WHITESPACE) { + first++; + } + + if (first < last && input[first].token == SL_PP_IDENTIFIER) { + arg_name = input[first].data.identifier; + first++; + } + if (arg_name == -1) { + return 0; + } + + if (arg_name == context->dict.off) { + out.data.pragma = 0; + } else if (arg_name == context->dict.on) { + out.data.pragma = 1; + } else { + return 0; + } + + while (first < last && input[first].token == SL_PP_WHITESPACE) { + first++; + } + + if (first < last && input[first].token == SL_PP_RPAREN) { + first++; + } else { + return 0; + } + + /* Ignore the tokens that follow. */ + + if (sl_pp_process_out(state, &out)) { + strcpy(context->error_msg, "out of memory"); + return -1; + } + + return 0; +} diff --git a/src/glsl/pp/sl_pp_process.c b/src/glsl/pp/sl_pp_process.c new file mode 100644 index 00000000000..e2adc2a0215 --- /dev/null +++ b/src/glsl/pp/sl_pp_process.c @@ -0,0 +1,286 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include <stdlib.h> +#include <string.h> +#include "sl_pp_process.h" +#include "sl_pp_public.h" + + +static void +skip_whitespace(const struct sl_pp_token_info *input, + unsigned int *pi) +{ + while (input[*pi].token == SL_PP_WHITESPACE) { + (*pi)++; + } +} + +int +sl_pp_process_out(struct sl_pp_process_state *state, + const struct sl_pp_token_info *token) +{ + if (state->out_len >= state->out_max) { + unsigned int new_max = state->out_max; + + if (new_max < 0x100) { + new_max = 0x100; + } else if (new_max < 0x10000) { + new_max *= 2; + } else { + new_max += 0x10000; + } + + state->out = realloc(state->out, new_max * sizeof(struct sl_pp_token_info)); + if (!state->out) { + return -1; + } + state->out_max = new_max; + } + + state->out[state->out_len++] = *token; + return 0; +} + +int +sl_pp_process(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + struct sl_pp_token_info **output) +{ + unsigned int i = 0; + int found_eof = 0; + struct sl_pp_process_state state; + + memset(&state, 0, sizeof(state)); + + if (context->line > 1) { + struct sl_pp_token_info ti; + + ti.token = SL_PP_LINE; + ti.data.line.lineno = context->line - 1; + ti.data.line.fileno = context->file; + if (sl_pp_process_out(&state, &ti)) { + strcpy(context->error_msg, "out of memory"); + return -1; + } + + ti.token = SL_PP_NEWLINE; + if (sl_pp_process_out(&state, &ti)) { + strcpy(context->error_msg, "out of memory"); + return -1; + } + } + + while (!found_eof) { + skip_whitespace(input, &i); + if (input[i].token == SL_PP_HASH) { + i++; + skip_whitespace(input, &i); + switch (input[i].token) { + case SL_PP_IDENTIFIER: + { + int name; + int found_eol = 0; + unsigned int first; + unsigned int last; + struct sl_pp_token_info endof; + + /* Directive name. */ + name = input[i].data.identifier; + i++; + skip_whitespace(input, &i); + + first = i; + + while (!found_eol) { + switch (input[i].token) { + case SL_PP_NEWLINE: + /* Preserve newline just for the sake of line numbering. */ + endof = input[i]; + i++; + found_eol = 1; + break; + + case SL_PP_EOF: + endof = input[i]; + i++; + found_eof = 1; + found_eol = 1; + break; + + default: + i++; + } + } + + last = i - 1; + + if (name == context->dict._if) { + if (sl_pp_process_if(context, input, first, last)) { + return -1; + } + } else if (name == context->dict.ifdef) { + if (sl_pp_process_ifdef(context, input, first, last)) { + return -1; + } + } else if (name == context->dict.ifndef) { + if (sl_pp_process_ifndef(context, input, first, last)) { + return -1; + } + } else if (name == context->dict.elif) { + if (sl_pp_process_elif(context, input, first, last)) { + return -1; + } + } else if (name == context->dict._else) { + if (sl_pp_process_else(context, input, first, last)) { + return -1; + } + } else if (name == context->dict.endif) { + if (sl_pp_process_endif(context, input, first, last)) { + return -1; + } + } else if (context->if_value) { + if (name == context->dict.define) { + if (sl_pp_process_define(context, input, first, last)) { + return -1; + } + } else if (name == context->dict.error) { + sl_pp_process_error(context, input, first, last); + return -1; + } else if (name == context->dict.extension) { + if (sl_pp_process_extension(context, input, first, last, &state)) { + return -1; + } + } else if (name == context->dict.line) { + if (sl_pp_process_line(context, input, first, last, &state)) { + return -1; + } + } else if (name == context->dict.pragma) { + if (sl_pp_process_pragma(context, input, first, last, &state)) { + return -1; + } + } else if (name == context->dict.undef) { + if (sl_pp_process_undef(context, input, first, last)) { + return -1; + } + } else { + strcpy(context->error_msg, "unrecognised directive name"); + return -1; + } + } + + if (sl_pp_process_out(&state, &endof)) { + strcpy(context->error_msg, "out of memory"); + return -1; + } + context->line++; + } + break; + + case SL_PP_NEWLINE: + /* Empty directive. */ + if (sl_pp_process_out(&state, &input[i])) { + strcpy(context->error_msg, "out of memory"); + return -1; + } + context->line++; + i++; + break; + + case SL_PP_EOF: + /* Empty directive. */ + if (sl_pp_process_out(&state, &input[i])) { + strcpy(context->error_msg, "out of memory"); + return -1; + } + i++; + found_eof = 1; + break; + + default: + strcpy(context->error_msg, "expected a directive name"); + return -1; + } + } else { + int found_eol = 0; + + while (!found_eol) { + switch (input[i].token) { + case SL_PP_WHITESPACE: + /* Drop whitespace all together at this point. */ + i++; + break; + + case SL_PP_NEWLINE: + /* Preserve newline just for the sake of line numbering. */ + if (sl_pp_process_out(&state, &input[i])) { + strcpy(context->error_msg, "out of memory"); + return -1; + } + context->line++; + i++; + found_eol = 1; + break; + + case SL_PP_EOF: + if (sl_pp_process_out(&state, &input[i])) { + strcpy(context->error_msg, "out of memory"); + return -1; + } + i++; + found_eof = 1; + found_eol = 1; + break; + + case SL_PP_IDENTIFIER: + if (sl_pp_macro_expand(context, input, &i, NULL, &state, + context->if_value ? sl_pp_macro_expand_normal : sl_pp_macro_expand_mute)) { + return -1; + } + break; + + default: + if (context->if_value) { + if (sl_pp_process_out(&state, &input[i])) { + strcpy(context->error_msg, "out of memory"); + return -1; + } + } + i++; + } + } + } + } + + if (context->if_ptr != SL_PP_MAX_IF_NESTING) { + strcpy(context->error_msg, "expected `#endif' directive"); + return -1; + } + + *output = state.out; + return 0; +} diff --git a/src/glsl/pp/sl_pp_process.h b/src/glsl/pp/sl_pp_process.h new file mode 100644 index 00000000000..24311bab603 --- /dev/null +++ b/src/glsl/pp/sl_pp_process.h @@ -0,0 +1,121 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#ifndef SL_PP_PROCESS_H +#define SL_PP_PROCESS_H + +#include "sl_pp_context.h" +#include "sl_pp_macro.h" +#include "sl_pp_token.h" + + +struct sl_pp_process_state { + struct sl_pp_token_info *out; + unsigned int out_len; + unsigned int out_max; +}; + +int +sl_pp_process_define(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int first, + unsigned int last); + +int +sl_pp_process_undef(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int first, + unsigned int last); + +int +sl_pp_process_if(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int first, + unsigned int last); + +int +sl_pp_process_ifdef(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int first, + unsigned int last); + +int +sl_pp_process_ifndef(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int first, + unsigned int last); + +int +sl_pp_process_elif(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int first, + unsigned int last); + +int +sl_pp_process_else(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int first, + unsigned int last); + +int +sl_pp_process_endif(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int first, + unsigned int last); + +void +sl_pp_process_error(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int first, + unsigned int last); + +int +sl_pp_process_pragma(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int first, + unsigned int last, + struct sl_pp_process_state *state); + +int +sl_pp_process_extension(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int first, + unsigned int last, + struct sl_pp_process_state *state); + +int +sl_pp_process_line(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int first, + unsigned int last, + struct sl_pp_process_state *state); + +int +sl_pp_process_out(struct sl_pp_process_state *state, + const struct sl_pp_token_info *token); + +#endif /* SL_PP_PROCESS_H */ diff --git a/src/glsl/pp/sl_pp_public.h b/src/glsl/pp/sl_pp_public.h new file mode 100644 index 00000000000..076903649cd --- /dev/null +++ b/src/glsl/pp/sl_pp_public.h @@ -0,0 +1,77 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#ifndef SL_PP_PUBLIC_H +#define SL_PP_PUBLIC_H + + +struct sl_pp_context; + + +#include "sl_pp_purify.h" +#include "sl_pp_token.h" + + +struct sl_pp_context * +sl_pp_context_create(void); + +void +sl_pp_context_destroy(struct sl_pp_context *context); + +const char * +sl_pp_context_error_message(const struct sl_pp_context *context); + +int +sl_pp_context_add_extension(struct sl_pp_context *context, + const char *name, + const char *name_string); + +int +sl_pp_context_add_predefined(struct sl_pp_context *context, + const char *name, + const char *value); + +int +sl_pp_context_add_unique_str(struct sl_pp_context *context, + const char *str); + +const char * +sl_pp_context_cstr(const struct sl_pp_context *context, + int offset); + +int +sl_pp_version(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int *version, + unsigned int *tokens_eaten); + +int +sl_pp_process(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + struct sl_pp_token_info **output); + +#endif /* SL_PP_PUBLIC_H */ diff --git a/src/glsl/pp/sl_pp_purify.c b/src/glsl/pp/sl_pp_purify.c new file mode 100644 index 00000000000..b50f8192517 --- /dev/null +++ b/src/glsl/pp/sl_pp_purify.c @@ -0,0 +1,302 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include <stdlib.h> +#include <stdarg.h> +#include <stdio.h> +#include "sl_pp_purify.h" + + +/* + * Preprocessor purifier performs the following tasks. + * - Convert all variants of newlines into a Unix newline. + * - Merge continued lines into a single long line. + * - Remove line comments and replace block comments with whitespace. + */ + + +static unsigned int +_purify_newline(const char *input, + char *out, + unsigned int *current_line) +{ + if (input[0] == '\n') { + *out = '\n'; + (*current_line)++; + if (input[1] == '\r') { + /* + * The GLSL spec is not explicit about whether this + * combination is a valid newline or not. + * Let's assume it is acceptable. + */ + return 2; + } + return 1; + } + if (input[0] == '\r') { + *out = '\n'; + (*current_line)++; + if (input[1] == '\n') { + return 2; + } + return 1; + } + *out = input[0]; + return 1; +} + + +static unsigned int +_purify_backslash(const char *input, + char *out, + unsigned int *current_line) +{ + unsigned int eaten = 0; + + for (;;) { + if (input[0] == '\\') { + char next; + unsigned int next_eaten; + unsigned int next_line = *current_line; + + eaten++; + input++; + + next_eaten = _purify_newline(input, &next, &next_line); + if (next == '\n') { + /* + * If this is really a line continuation sequence, eat + * it and do not exit the loop. + */ + eaten += next_eaten; + input += next_eaten; + *current_line = next_line; + } else { + /* + * It is an error to put anything between a backslash + * and a newline and still expect it to behave like a line + * continuation sequence. + * Even if it is an innocent whitespace. + */ + *out = '\\'; + break; + } + } else { + eaten += _purify_newline(input, out, current_line); + break; + } + } + return eaten; +} + + +static void +_report_error(char *buf, + unsigned int cbbuf, + const char *msg, + ...) +{ + va_list args; + + va_start(args, msg); + vsnprintf(buf, cbbuf, msg, args); + va_end(args); +} + + +void +sl_pp_purify_state_init(struct sl_pp_purify_state *state, + const char *input, + const struct sl_pp_purify_options *options) +{ + state->options = *options; + state->input = input; + state->current_line = 1; + state->inside_c_comment = 0; +} + + +unsigned int +_purify_comment(struct sl_pp_purify_state *state, + char *output, + unsigned int *current_line, + char *errormsg, + unsigned int cberrormsg) +{ + for (;;) { + unsigned int eaten; + char next; + + eaten = _purify_backslash(state->input, &next, current_line); + state->input += eaten; + while (next == '*') { + eaten = _purify_backslash(state->input, &next, current_line); + state->input += eaten; + if (next == '/') { + *output = ' '; + state->inside_c_comment = 0; + return 1; + } + } + if (next == '\n') { + *output = '\n'; + state->inside_c_comment = 1; + return 1; + } + if (next == '\0') { + _report_error(errormsg, cberrormsg, "expected `*/' but end of translation unit found"); + return 0; + } + } +} + + +unsigned int +sl_pp_purify_getc(struct sl_pp_purify_state *state, + char *output, + unsigned int *current_line, + char *errormsg, + unsigned int cberrormsg) +{ + unsigned int eaten; + + if (state->inside_c_comment) { + return _purify_comment(state, output, current_line, errormsg, cberrormsg); + } + + eaten = _purify_backslash(state->input, output, current_line); + state->input += eaten; + if (*output == '/') { + char next; + unsigned int next_line = *current_line; + + eaten = _purify_backslash(state->input, &next, &next_line); + if (next == '/') { + state->input += eaten; + *current_line = next_line; + + /* Replace a line comment with either a newline or nil. */ + for (;;) { + eaten = _purify_backslash(state->input, &next, current_line); + state->input += eaten; + if (next == '\n' || next == '\0') { + *output = next; + return eaten; + } + } + } else if (next == '*') { + state->input += eaten; + *current_line = next_line; + + return _purify_comment(state, output, current_line, errormsg, cberrormsg); + } + } + return eaten; +} + + +struct out_buf { + char *out; + unsigned int len; + unsigned int capacity; + unsigned int current_line; + char *errormsg; + unsigned int cberrormsg; +}; + + +static int +_out_buf_putc(struct out_buf *obuf, + char c) +{ + if (obuf->len >= obuf->capacity) { + unsigned int new_max = obuf->capacity; + + if (new_max < 0x100) { + new_max = 0x100; + } else if (new_max < 0x10000) { + new_max *= 2; + } else { + new_max += 0x10000; + } + + obuf->out = realloc(obuf->out, new_max); + if (!obuf->out) { + _report_error(obuf->errormsg, obuf->cberrormsg, "out of memory"); + return -1; + } + obuf->capacity = new_max; + } + + obuf->out[obuf->len++] = c; + + return 0; +} + + +int +sl_pp_purify(const char *input, + const struct sl_pp_purify_options *options, + char **output, + char *errormsg, + unsigned int cberrormsg, + unsigned int *errorline) +{ + struct out_buf obuf; + struct sl_pp_purify_state state; + + obuf.out = NULL; + obuf.len = 0; + obuf.capacity = 0; + obuf.current_line = 1; + obuf.errormsg = errormsg; + obuf.cberrormsg = cberrormsg; + + sl_pp_purify_state_init(&state, input, options); + + for (;;) { + unsigned int eaten; + char c; + + eaten = sl_pp_purify_getc(&state, &c, &obuf.current_line, errormsg, cberrormsg); + if (!eaten) { + *errorline = obuf.current_line; + return -1; + } + if (_out_buf_putc(&obuf, c)) { + *errorline = obuf.current_line; + return -1; + } + + if (c == '\0') { + break; + } + } + + *output = obuf.out; + return 0; +} diff --git a/src/glsl/pp/sl_pp_purify.h b/src/glsl/pp/sl_pp_purify.h new file mode 100644 index 00000000000..c0f55cbfd89 --- /dev/null +++ b/src/glsl/pp/sl_pp_purify.h @@ -0,0 +1,63 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#ifndef SL_PP_PURIFY_H +#define SL_PP_PURIFY_H + +struct sl_pp_purify_options { + unsigned int preserve_columns:1; + unsigned int tab_width:4; +}; + +int +sl_pp_purify(const char *input, + const struct sl_pp_purify_options *options, + char **output, + char *errormsg, + unsigned int cberrormsg, + unsigned int *errorline); + +struct sl_pp_purify_state { + struct sl_pp_purify_options options; + const char *input; + unsigned int current_line; + unsigned int inside_c_comment:1; +}; + +void +sl_pp_purify_state_init(struct sl_pp_purify_state *state, + const char *input, + const struct sl_pp_purify_options *options); + +unsigned int +sl_pp_purify_getc(struct sl_pp_purify_state *state, + char *output, + unsigned int *current_line, + char *errormsg, + unsigned int cberrormsg); + +#endif /* SL_PP_PURIFY_H */ diff --git a/src/glsl/pp/sl_pp_token.c b/src/glsl/pp/sl_pp_token.c new file mode 100644 index 00000000000..e9a60b6c508 --- /dev/null +++ b/src/glsl/pp/sl_pp_token.c @@ -0,0 +1,859 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include <assert.h> +#include <stdlib.h> +#include <string.h> +#include "sl_pp_public.h" +#include "sl_pp_context.h" +#include "sl_pp_token.h" + + +#define PURE_ERROR 256 + +static int +_pure_getc(struct sl_pp_context *context) +{ + char c; + unsigned int current_line; + + if (context->getc_buf_size) { + return context->getc_buf[--context->getc_buf_size]; + } + + if (sl_pp_purify_getc(&context->pure, &c, ¤t_line, context->error_msg, sizeof(context->error_msg)) == 0) { + return PURE_ERROR; + } + return c; +} + + +static void +_pure_ungetc(struct sl_pp_context *context, + int c) +{ + assert(c != PURE_ERROR); + + if (context->getc_buf_size == context->getc_buf_capacity) { + context->getc_buf_capacity += 64; + context->getc_buf = realloc(context->getc_buf, context->getc_buf_capacity * sizeof(char)); + assert(context->getc_buf); + } + + context->getc_buf[context->getc_buf_size++] = (char)c; +} + + +struct lookahead_state { + char buf[256]; + unsigned int pos; + struct sl_pp_context *context; +}; + + +static void +_lookahead_init(struct lookahead_state *lookahead, + struct sl_pp_context *context) +{ + lookahead->pos = 0; + lookahead->context = context; +} + + +static unsigned int +_lookahead_tell(const struct lookahead_state *lookahead) +{ + return lookahead->pos; +} + + +static const void * +_lookahead_buf(const struct lookahead_state *lookahead) +{ + return lookahead->buf; +} + + +static void +_lookahead_revert(struct lookahead_state *lookahead, + unsigned int pos) +{ + assert(pos <= lookahead->pos); + + while (lookahead->pos > pos) { + _pure_ungetc(lookahead->context, lookahead->buf[--lookahead->pos]); + } +} + + +static int +_lookahead_getc(struct lookahead_state *lookahead) +{ + int c; + + assert(lookahead->pos < sizeof(lookahead->buf) / sizeof(lookahead->buf[0])); + + c = _pure_getc(lookahead->context); + if (c != PURE_ERROR) { + lookahead->buf[lookahead->pos++] = (char)c; + } + return c; +} + + +static int +_is_identifier_char(char c) +{ + return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || (c >= '0' && c <= '9') || c == '_'; +} + + +static int +_tokenise_identifier(struct sl_pp_context *context, + struct sl_pp_token_info *out) +{ + int c; + char identifier[256]; /* XXX: Remove this artifical limit. */ + unsigned int i = 0; + + out->token = SL_PP_IDENTIFIER; + out->data.identifier = -1; + + c = _pure_getc(context); + if (c == PURE_ERROR) { + return -1; + } + identifier[i++] = (char)c; + for (;;) { + c = _pure_getc(context); + if (c == PURE_ERROR) { + return -1; + } + + if (_is_identifier_char((char)c)) { + if (i >= sizeof(identifier) / sizeof(char) - 1) { + strcpy(context->error_msg, "out of memory"); + _pure_ungetc(context, c); + while (i) { + _pure_ungetc(context, identifier[--i]); + } + return -1; + } + identifier[i++] = (char)c; + } else { + _pure_ungetc(context, c); + break; + } + } + identifier[i] = '\0'; + + out->data.identifier = sl_pp_context_add_unique_str(context, identifier); + if (out->data.identifier == -1) { + while (i) { + _pure_ungetc(context, identifier[--i]); + } + return -1; + } + + return 0; +} + + +/* + * Return the number of consecutive decimal digits in the input stream. + */ +static unsigned int +_parse_float_digits(struct lookahead_state *lookahead) +{ + unsigned int eaten; + + for (eaten = 0;; eaten++) { + unsigned int pos = _lookahead_tell(lookahead); + char c = _lookahead_getc(lookahead); + + if (c < '0' || c > '9') { + _lookahead_revert(lookahead, pos); + break; + } + } + return eaten; +} + + +/* + * Try to match one of the following patterns for the fractional part + * of a floating point number. + * + * digits . [digits] + * . digits + * + * Return 0 if the pattern could not be matched, otherwise the number + * of eaten characters from the input stream. + */ +static unsigned int +_parse_float_frac(struct lookahead_state *lookahead) +{ + unsigned int pos; + int c; + unsigned int eaten; + + pos = _lookahead_tell(lookahead); + c = _lookahead_getc(lookahead); + if (c == '.') { + eaten = _parse_float_digits(lookahead); + if (eaten) { + return eaten + 1; + } + _lookahead_revert(lookahead, pos); + return 0; + } + + _lookahead_revert(lookahead, pos); + eaten = _parse_float_digits(lookahead); + if (eaten) { + c = _lookahead_getc(lookahead); + if (c == '.') { + return eaten + 1 + _parse_float_digits(lookahead); + } + } + + _lookahead_revert(lookahead, pos); + return 0; +} + + +/* + * Try to match the following pattern for the exponential part + * of a floating point number. + * + * (e|E) [(+|-)] digits + * + * Return 0 if the pattern could not be matched, otherwise the number + * of eaten characters from the input stream. + */ +static unsigned int +_parse_float_exp(struct lookahead_state *lookahead) +{ + unsigned int pos, pos2; + int c; + unsigned int eaten, digits; + + pos = _lookahead_tell(lookahead); + c = _lookahead_getc(lookahead); + if (c != 'e' && c != 'E') { + _lookahead_revert(lookahead, pos); + return 0; + } + + pos2 = _lookahead_tell(lookahead); + c = _lookahead_getc(lookahead); + if (c == '-' || c == '+') { + eaten = 2; + } else { + _lookahead_revert(lookahead, pos2); + eaten = 1; + } + + digits = _parse_float_digits(lookahead); + if (!digits) { + _lookahead_revert(lookahead, pos); + return 0; + } + + return eaten + digits; +} + + +/* + * Try to match one of the following patterns for a floating point number. + * + * fract [exp] [(f|F)] + * digits exp [(f|F)] + * + * Return 0 if the pattern could not be matched, otherwise the number + * of eaten characters from the input stream. + */ +static unsigned int +_parse_float(struct lookahead_state *lookahead) +{ + unsigned int eaten; + + eaten = _parse_float_frac(lookahead); + if (eaten) { + unsigned int pos; + int c; + + eaten += _parse_float_exp(lookahead); + + pos = _lookahead_tell(lookahead); + c = _lookahead_getc(lookahead); + if (c == 'f' || c == 'F') { + eaten++; + } else { + _lookahead_revert(lookahead, pos); + } + + return eaten; + } + + eaten = _parse_float_digits(lookahead); + if (eaten) { + unsigned int exponent; + + exponent = _parse_float_exp(lookahead); + if (exponent) { + unsigned int pos; + int c; + + eaten += exponent; + + pos = _lookahead_tell(lookahead); + c = _lookahead_getc(lookahead); + if (c == 'f' || c == 'F') { + eaten++; + } else { + _lookahead_revert(lookahead, pos); + } + + return eaten; + } + } + + _lookahead_revert(lookahead, 0); + return 0; +} + + +static unsigned int +_parse_hex(struct lookahead_state *lookahead) +{ + int c; + unsigned int n; + + c = _lookahead_getc(lookahead); + if (c != '0') { + _lookahead_revert(lookahead, 0); + return 0; + } + + c = _lookahead_getc(lookahead); + if (c != 'x' && c != 'X') { + _lookahead_revert(lookahead, 0); + return 0; + } + + for (n = 2;;) { + unsigned int pos = _lookahead_tell(lookahead); + + c = _lookahead_getc(lookahead); + if ((c >= '0' && c <= '9') || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F')) { + n++; + } else { + _lookahead_revert(lookahead, pos); + break; + } + } + + if (n > 2) { + return n; + } + + _lookahead_revert(lookahead, 0); + return 0; +} + + +static unsigned int +_parse_oct(struct lookahead_state *lookahead) +{ + int c; + unsigned int n; + + c = _lookahead_getc(lookahead); + if (c != '0') { + _lookahead_revert(lookahead, 0); + return 0; + } + + for (n = 1;;) { + unsigned int pos = _lookahead_tell(lookahead); + + c = _lookahead_getc(lookahead); + if ((c >= '0' && c <= '7')) { + n++; + } else { + _lookahead_revert(lookahead, pos); + break; + } + } + + return n; +} + + +static unsigned int +_parse_dec(struct lookahead_state *lookahead) +{ + unsigned int n = 0; + + for (;;) { + unsigned int pos = _lookahead_tell(lookahead); + int c = _lookahead_getc(lookahead); + + if ((c >= '0' && c <= '9')) { + n++; + } else { + _lookahead_revert(lookahead, pos); + break; + } + } + + return n; +} + + +static int +_tokenise_number(struct sl_pp_context *context, + struct sl_pp_token_info *out) +{ + struct lookahead_state lookahead; + unsigned int eaten; + unsigned int is_float = 0; + unsigned int pos; + int c; + char number[256]; /* XXX: Remove this artifical limit. */ + + _lookahead_init(&lookahead, context); + + eaten = _parse_float(&lookahead); + if (!eaten) { + eaten = _parse_hex(&lookahead); + if (!eaten) { + eaten = _parse_oct(&lookahead); + if (!eaten) { + eaten = _parse_dec(&lookahead); + } + } + } else { + is_float = 1; + } + + if (!eaten) { + strcpy(context->error_msg, "expected a number"); + return -1; + } + + pos = _lookahead_tell(&lookahead); + c = _lookahead_getc(&lookahead); + _lookahead_revert(&lookahead, pos); + + if (_is_identifier_char(c)) { + strcpy(context->error_msg, "expected a number"); + _lookahead_revert(&lookahead, 0); + return -1; + } + + if (eaten > sizeof(number) - 1) { + strcpy(context->error_msg, "out of memory"); + _lookahead_revert(&lookahead, 0); + return -1; + } + + assert(_lookahead_tell(&lookahead) == eaten); + + memcpy(number, _lookahead_buf(&lookahead), eaten); + number[eaten] = '\0'; + + if (is_float) { + out->token = SL_PP_FLOAT; + out->data._float = sl_pp_context_add_unique_str(context, number); + if (out->data._float == -1) { + _lookahead_revert(&lookahead, 0); + return -1; + } + } else { + out->token = SL_PP_UINT; + out->data._uint = sl_pp_context_add_unique_str(context, number); + if (out->data._uint == -1) { + _lookahead_revert(&lookahead, 0); + return -1; + } + } + + return 0; +} + + +static int +sl_pp_token_get(struct sl_pp_context *context, + struct sl_pp_token_info *out) +{ + int c = _pure_getc(context); + + switch (c) { + case ' ': + case '\t': + out->token = SL_PP_WHITESPACE; + break; + + case '\n': + out->token = SL_PP_NEWLINE; + break; + + case '#': + out->token = SL_PP_HASH; + break; + + case ',': + out->token = SL_PP_COMMA; + break; + + case ';': + out->token = SL_PP_SEMICOLON; + break; + + case '{': + out->token = SL_PP_LBRACE; + break; + + case '}': + out->token = SL_PP_RBRACE; + break; + + case '(': + out->token = SL_PP_LPAREN; + break; + + case ')': + out->token = SL_PP_RPAREN; + break; + + case '[': + out->token = SL_PP_LBRACKET; + break; + + case ']': + out->token = SL_PP_RBRACKET; + break; + + case '.': + { + int c2 = _pure_getc(context); + + if (c2 == PURE_ERROR) { + return -1; + } + if (c2 >= '0' && c2 <= '9') { + _pure_ungetc(context, c2); + _pure_ungetc(context, c); + if (_tokenise_number(context, out)) { + return -1; + } + } else { + _pure_ungetc(context, c2); + out->token = SL_PP_DOT; + } + } + break; + + case '+': + c = _pure_getc(context); + if (c == PURE_ERROR) { + return -1; + } + if (c == '+') { + out->token = SL_PP_INCREMENT; + } else if (c == '=') { + out->token = SL_PP_ADDASSIGN; + } else { + _pure_ungetc(context, c); + out->token = SL_PP_PLUS; + } + break; + + case '-': + c = _pure_getc(context); + if (c == PURE_ERROR) { + return -1; + } + if (c == '-') { + out->token = SL_PP_DECREMENT; + } else if (c == '=') { + out->token = SL_PP_SUBASSIGN; + } else { + _pure_ungetc(context, c); + out->token = SL_PP_MINUS; + } + break; + + case '~': + out->token = SL_PP_BITNOT; + break; + + case '!': + c = _pure_getc(context); + if (c == PURE_ERROR) { + return -1; + } + if (c == '=') { + out->token = SL_PP_NOTEQUAL; + } else { + _pure_ungetc(context, c); + out->token = SL_PP_NOT; + } + break; + + case '*': + c = _pure_getc(context); + if (c == PURE_ERROR) { + return -1; + } + if (c == '=') { + out->token = SL_PP_MULASSIGN; + } else { + _pure_ungetc(context, c); + out->token = SL_PP_STAR; + } + break; + + case '/': + c = _pure_getc(context); + if (c == PURE_ERROR) { + return -1; + } + if (c == '=') { + out->token = SL_PP_DIVASSIGN; + } else { + _pure_ungetc(context, c); + out->token = SL_PP_SLASH; + } + break; + + case '%': + c = _pure_getc(context); + if (c == PURE_ERROR) { + return -1; + } + if (c == '=') { + out->token = SL_PP_MODASSIGN; + } else { + _pure_ungetc(context, c); + out->token = SL_PP_MODULO; + } + break; + + case '<': + c = _pure_getc(context); + if (c == PURE_ERROR) { + return -1; + } + if (c == '<') { + c = _pure_getc(context); + if (c == PURE_ERROR) { + return -1; + } + if (c == '=') { + out->token = SL_PP_LSHIFTASSIGN; + } else { + _pure_ungetc(context, c); + out->token = SL_PP_LSHIFT; + } + } else if (c == '=') { + out->token = SL_PP_LESSEQUAL; + } else { + _pure_ungetc(context, c); + out->token = SL_PP_LESS; + } + break; + + case '>': + c = _pure_getc(context); + if (c == PURE_ERROR) { + return -1; + } + if (c == '>') { + c = _pure_getc(context); + if (c == PURE_ERROR) { + return -1; + } + if (c == '=') { + out->token = SL_PP_RSHIFTASSIGN; + } else { + _pure_ungetc(context, c); + out->token = SL_PP_RSHIFT; + } + } else if (c == '=') { + out->token = SL_PP_GREATEREQUAL; + } else { + _pure_ungetc(context, c); + out->token = SL_PP_GREATER; + } + break; + + case '=': + c = _pure_getc(context); + if (c == PURE_ERROR) { + return -1; + } + if (c == '=') { + out->token = SL_PP_EQUAL; + } else { + _pure_ungetc(context, c); + out->token = SL_PP_ASSIGN; + } + break; + + case '&': + c = _pure_getc(context); + if (c == PURE_ERROR) { + return -1; + } + if (c == '&') { + out->token = SL_PP_AND; + } else if (c == '=') { + out->token = SL_PP_BITANDASSIGN; + } else { + _pure_ungetc(context, c); + out->token = SL_PP_BITAND; + } + break; + + case '^': + c = _pure_getc(context); + if (c == PURE_ERROR) { + return -1; + } + if (c == '^') { + out->token = SL_PP_XOR; + } else if (c == '=') { + out->token = SL_PP_BITXORASSIGN; + } else { + _pure_ungetc(context, c); + out->token = SL_PP_BITXOR; + } + break; + + case '|': + c = _pure_getc(context); + if (c == PURE_ERROR) { + return -1; + } + if (c == '|') { + out->token = SL_PP_OR; + } else if (c == '=') { + out->token = SL_PP_BITORASSIGN; + } else { + _pure_ungetc(context, c); + out->token = SL_PP_BITOR; + } + break; + + case '?': + out->token = SL_PP_QUESTION; + break; + + case ':': + out->token = SL_PP_COLON; + break; + + case '\0': + out->token = SL_PP_EOF; + break; + + case PURE_ERROR: + return -1; + + default: + if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_') { + _pure_ungetc(context, c); + if (_tokenise_identifier(context, out)) { + return -1; + } + } else if (c >= '0' && c <= '9') { + _pure_ungetc(context, c); + if (_tokenise_number(context, out)) { + return -1; + } + } else { + out->data.other = c; + out->token = SL_PP_OTHER; + } + } + + return 0; +} + + +int +sl_pp_tokenise(struct sl_pp_context *context, + const char *input, + const struct sl_pp_purify_options *options, + struct sl_pp_token_info **output) +{ + struct sl_pp_token_info *out = NULL; + unsigned int out_len = 0; + unsigned int out_max = 0; + + sl_pp_purify_state_init(&context->pure, input, options); + + for (;;) { + struct sl_pp_token_info info; + + if (sl_pp_token_get(context, &info)) { + free(out); + return -1; + } + + if (out_len >= out_max) { + unsigned int new_max = out_max; + + if (new_max < 0x100) { + new_max = 0x100; + } else if (new_max < 0x10000) { + new_max *= 2; + } else { + new_max += 0x10000; + } + + out = realloc(out, new_max * sizeof(struct sl_pp_token_info)); + if (!out) { + strcpy(context->error_msg, "out of memory"); + return -1; + } + out_max = new_max; + } + + out[out_len++] = info; + + if (info.token == SL_PP_EOF) { + break; + } + } + + *output = out; + return 0; +} diff --git a/src/glsl/pp/sl_pp_token.h b/src/glsl/pp/sl_pp_token.h new file mode 100644 index 00000000000..ba9834a9f24 --- /dev/null +++ b/src/glsl/pp/sl_pp_token.h @@ -0,0 +1,131 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#ifndef SL_PP_TOKEN_H +#define SL_PP_TOKEN_H + + +struct sl_pp_context; + +enum sl_pp_token { + SL_PP_WHITESPACE, + SL_PP_NEWLINE, + SL_PP_HASH, /* # */ + + SL_PP_COMMA, /* , */ + SL_PP_SEMICOLON, /* ; */ + SL_PP_LBRACE, /* { */ + SL_PP_RBRACE, /* } */ + SL_PP_LPAREN, /* ( */ + SL_PP_RPAREN, /* ) */ + SL_PP_LBRACKET, /* [ */ + SL_PP_RBRACKET, /* ] */ + SL_PP_DOT, /* . */ + SL_PP_INCREMENT, /* ++ */ + SL_PP_ADDASSIGN, /* += */ + SL_PP_PLUS, /* + */ + SL_PP_DECREMENT, /* -- */ + SL_PP_SUBASSIGN, /* -= */ + SL_PP_MINUS, /* - */ + SL_PP_BITNOT, /* ~ */ + SL_PP_NOTEQUAL, /* != */ + SL_PP_NOT, /* ! */ + SL_PP_MULASSIGN, /* *= */ + SL_PP_STAR, /* * */ + SL_PP_DIVASSIGN, /* /= */ + SL_PP_SLASH, /* / */ + SL_PP_MODASSIGN, /* %= */ + SL_PP_MODULO, /* % */ + SL_PP_LSHIFTASSIGN, /* <<= */ + SL_PP_LSHIFT, /* << */ + SL_PP_LESSEQUAL, /* <= */ + SL_PP_LESS, /* < */ + SL_PP_RSHIFTASSIGN, /* >>= */ + SL_PP_RSHIFT, /* >> */ + SL_PP_GREATEREQUAL, /* >= */ + SL_PP_GREATER, /* > */ + SL_PP_EQUAL, /* == */ + SL_PP_ASSIGN, /* = */ + SL_PP_AND, /* && */ + SL_PP_BITANDASSIGN, /* &= */ + SL_PP_BITAND, /* & */ + SL_PP_XOR, /* ^^ */ + SL_PP_BITXORASSIGN, /* ^= */ + SL_PP_BITXOR, /* ^ */ + SL_PP_OR, /* || */ + SL_PP_BITORASSIGN, /* |= */ + SL_PP_BITOR, /* | */ + SL_PP_QUESTION, /* ? */ + SL_PP_COLON, /* : */ + + SL_PP_IDENTIFIER, + + SL_PP_UINT, + SL_PP_FLOAT, + + SL_PP_OTHER, + + SL_PP_PRAGMA_OPTIMIZE, + SL_PP_PRAGMA_DEBUG, + + SL_PP_EXTENSION_REQUIRE, + SL_PP_EXTENSION_ENABLE, + SL_PP_EXTENSION_WARN, + SL_PP_EXTENSION_DISABLE, + + SL_PP_LINE, + + SL_PP_EOF +}; + +union sl_pp_token_data { + int identifier; + int _uint; + int _float; + char other; + int pragma; + int extension; + struct { + unsigned int lineno: 24; + unsigned int fileno: 8; + } line; +}; + +struct sl_pp_token_info { + enum sl_pp_token token; + union sl_pp_token_data data; +}; + +struct sl_pp_purify_options; + +int +sl_pp_tokenise(struct sl_pp_context *context, + const char *input, + const struct sl_pp_purify_options *options, + struct sl_pp_token_info **output); + +#endif /* SL_PP_TOKEN_H */ diff --git a/src/glsl/pp/sl_pp_version.c b/src/glsl/pp/sl_pp_version.c new file mode 100644 index 00000000000..db06523749c --- /dev/null +++ b/src/glsl/pp/sl_pp_version.c @@ -0,0 +1,140 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include <stdlib.h> +#include <string.h> +#include "sl_pp_public.h" +#include "sl_pp_context.h" + + +int +sl_pp_version(struct sl_pp_context *context, + const struct sl_pp_token_info *input, + unsigned int *version, + unsigned int *tokens_eaten) +{ + unsigned int i = 0; + unsigned int line = context->line; + + /* Default values if `#version' is not present. */ + *version = 110; + *tokens_eaten = 0; + + /* There can be multiple `#version' directives present. + * Accept the value of the last one. + */ + for (;;) { + int found_hash = 0; + int found_version = 0; + int found_number = 0; + int found_end = 0; + + /* Skip whitespace and newlines and seek for hash. */ + while (!found_hash) { + switch (input[i].token) { + case SL_PP_NEWLINE: + line++; + /* pass thru */ + case SL_PP_WHITESPACE: + i++; + break; + + case SL_PP_HASH: + i++; + found_hash = 1; + break; + + default: + return 0; + } + } + + /* Skip whitespace and seek for `version'. */ + while (!found_version) { + switch (input[i].token) { + case SL_PP_WHITESPACE: + i++; + break; + + case SL_PP_IDENTIFIER: + if (input[i].data.identifier != context->dict.version) { + return 0; + } + i++; + found_version = 1; + break; + + default: + return 0; + } + } + + /* Skip whitespace and seek for version number. */ + while (!found_number) { + switch (input[i].token) { + case SL_PP_WHITESPACE: + i++; + break; + + case SL_PP_UINT: + *version = atoi(sl_pp_context_cstr(context, input[i].data._uint)); + i++; + found_number = 1; + break; + + default: + strcpy(context->error_msg, "expected version number after `#version'"); + return -1; + } + } + + /* Skip whitespace and seek for either newline or eof. */ + while (!found_end) { + switch (input[i].token) { + case SL_PP_WHITESPACE: + i++; + break; + + case SL_PP_NEWLINE: + line++; + /* pass thru */ + case SL_PP_EOF: + i++; + *tokens_eaten = i; + context->line = line; + found_end = 1; + break; + + default: + strcpy(context->error_msg, "expected end of line after version number"); + return -1; + } + } + } + + /* Should not get here. */ +} |