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Location: alysbrooks-public/games/isometric-park-fna/FNA/lib/MojoShader/mojoshader_lexer.re - annotation

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Commit Description:
Add timers for Simulation and various engines...
Commit Description:
Add timers for Simulation and various engines Starting to add additional timers for different stages of the process of updating in order to get more insight into what is slowing it down. The update takes 9ms, which is much longer than it used to. Engine-specific timers are coming later.
References:
r588:3b7b6298ad9c m6-tiles-and-trees
File last commit:
r0:e33f209de7e5 default
Show/Diff file:
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FNA/lib/MojoShader/mojoshader_lexer.re
276 lines | 9.1 KiB | text/plain | TextLexer
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alys
Early working version (including all dependencies, lol).
 r0 /**
* MojoShader; generate shader programs from bytecode of compiled
* Direct3D shaders.
*
* Please see the file LICENSE.txt in the source's root directory.
*
* This file written by Ryan C. Gordon.
*/
// This was originally based on examples/pp-c.re from re2c: http://re2c.org/
// re2c is public domain code.
//
// You build mojoshader_lexer.c from the .re file with re2c...
// re2c -is -o mojoshader_lexer.c mojoshader_lexer.re
//
// Changes to the lexer are done to the .re file, not the C code!
//
// Please note that this isn't a perfect C lexer, since it is used for both
// HLSL and shader assembly language, and follows the quirks of Microsoft's
// tools.
#define __MOJOSHADER_INTERNAL__ 1
#include "mojoshader_internal.h"
typedef unsigned char uchar;
/*!max:re2c */
#define RET(t) return update_state(s, eoi, cursor, token, (Token) t)
#define YYCTYPE uchar
#define YYCURSOR cursor
#define YYLIMIT limit
#define YYMARKER s->lexer_marker
#define YYFILL(n) { if ((n) == 1) { cursor = sentinel; limit = cursor + YYMAXFILL; eoi = 1; } }
static uchar sentinel[YYMAXFILL];
static Token update_state(IncludeState *s, int eoi, const uchar *cur,
const uchar *tok, const Token val)
{
if (eoi)
{
s->bytes_left = 0;
s->source = (const char *) s->source_base + s->orig_length;
if ( (tok >= sentinel) && (tok < (sentinel+YYMAXFILL)) )
s->token = s->source;
else
s->token = (const char *) tok;
} // if
else
{
s->bytes_left -= (unsigned int) (cur - ((const uchar *) s->source));
s->source = (const char *) cur;
s->token = (const char *) tok;
} // else
s->tokenlen = (unsigned int) (s->source - s->token);
s->tokenval = val;
return val;
} // update_state
Token preprocessor_lexer(IncludeState *s)
{
const uchar *cursor = (const uchar *) s->source;
const uchar *token = cursor;
const uchar *matchptr;
const uchar *limit = cursor + s->bytes_left;
int eoi = 0;
/*!re2c
ANY = [\000-\377];
ANYLEGAL = [a-zA-Z0-9_/'*=+%^&|!#<>()[{}.,~^:;? \t\v\f\r\n\-\]\\];
O = [0-7];
D = [0-9];
L = [a-zA-Z_];
H = [a-fA-F0-9];
E = [Ee] [+-]? D+;
FS = [fFhH];
IS = [uUlL]*;
ESC = [\\] ([abfnrtv?'"\\] | "x" H+ | O+);
PP = "#" [ \t]*;
NEWLINE = ("\r\n" | "\r" | "\n");
WHITESPACE = [ \t\v\f]+;
*/
// preprocessor directives are only valid at start of line.
if (s->tokenval == ((Token) '\n'))
goto ppdirective; // may jump back to scanner_loop.
scanner_loop:
if (YYLIMIT == YYCURSOR) YYFILL(1);
token = cursor;
/*!re2c
"\\" [ \t\v\f]* NEWLINE { s->line++; goto scanner_loop; }
"/*" { goto multilinecomment; }
"//" { goto singlelinecomment; }
L (L|D)* { RET(TOKEN_IDENTIFIER); }
("0" [xX] H+ IS?) | ("0" D+ IS?) | (D+ IS?) |
(['] (ESC|ANY\[\r\n\\'])* ['])
{ RET(TOKEN_INT_LITERAL); }
(D+ E FS?) | (D* "." D+ E? FS?) | (D+ "." D* E? FS?)
{ RET(TOKEN_FLOAT_LITERAL); }
(["] (ESC|ANY\[\r\n\\"])* ["])
{ RET(TOKEN_STRING_LITERAL); }
">>=" { RET(TOKEN_RSHIFTASSIGN); }
"<<=" { RET(TOKEN_LSHIFTASSIGN); }
"+=" { RET(TOKEN_ADDASSIGN); }
"-=" { RET(TOKEN_SUBASSIGN); }
"*=" { RET(TOKEN_MULTASSIGN); }
"/=" { RET(TOKEN_DIVASSIGN); }
"%=" { RET(TOKEN_MODASSIGN); }
"^=" { RET(TOKEN_XORASSIGN); }
"&=" { RET(TOKEN_ANDASSIGN); }
"|=" { RET(TOKEN_ORASSIGN); }
"++" { RET(TOKEN_INCREMENT); }
"--" { RET(TOKEN_DECREMENT); }
">>" { RET(TOKEN_RSHIFT); }
"<<" { RET(TOKEN_LSHIFT); }
"&&" { RET(TOKEN_ANDAND); }
"||" { RET(TOKEN_OROR); }
"<=" { RET(TOKEN_LEQ); }
">=" { RET(TOKEN_GEQ); }
"==" { RET(TOKEN_EQL); }
"!=" { RET(TOKEN_NEQ); }
"#" { RET(TOKEN_HASH); }
"##" { RET(TOKEN_HASHHASH); }
"(" { RET('('); }
")" { RET(')'); }
"[" { RET('['); }
"]" { RET(']'); }
"." { RET('.'); }
"," { RET(','); }
"&" { RET('&'); }
"!" { RET('!'); }
"~" { RET('~'); }
"-" { RET('-'); }
"+" { RET('+'); }
"*" { RET('*'); }
"/" { RET('/'); }
"%" { RET('%'); }
"<" { RET('<'); }
">" { RET('>'); }
"^" { RET('^'); }
"|" { RET('|'); }
":" { RET(':'); }
"{" { RET('{'); }
"}" { RET('}'); }
"=" { RET('='); }
"?" { RET('?'); }
";" { if (s->asm_comments) goto singlelinecomment; RET(';'); }
"\000" { if (eoi) { RET(TOKEN_EOI); } goto bad_chars; }
WHITESPACE { if (s->report_whitespace) RET(' '); goto scanner_loop; }
NEWLINE { s->line++; RET('\n'); }
ANY { goto bad_chars; }
*/
multilinecomment:
if (YYLIMIT == YYCURSOR) YYFILL(1);
matchptr = cursor;
// The "*\/" is just to avoid screwing up text editor syntax highlighting.
/*!re2c
"*\/" {
if (s->report_comments)
RET(TOKEN_MULTI_COMMENT);
else if (s->report_whitespace)
RET(' ');
// Microsoft's preprocessor allows multiline comments
// before a preprocessor directive, even though C/C++
// doesn't. See if we've hit this case.
#if MATCH_MICROSOFT_PREPROCESSOR
if (s->tokenval == ((Token) '\n')) // was start of line?
{
update_state(s, eoi, cursor, token, (Token) '\n');
goto ppdirective; // may jump back to scanner_loop.
}
#endif
goto scanner_loop;
}
NEWLINE {
s->line++;
goto multilinecomment;
}
"\000" {
if (eoi)
RET(TOKEN_INCOMPLETE_COMMENT);
goto multilinecomment;
}
ANY { goto multilinecomment; }
*/
singlelinecomment:
if (YYLIMIT == YYCURSOR) YYFILL(1);
matchptr = cursor;
/*!re2c
NEWLINE {
s->line++;
if (s->report_comments)
{
cursor = matchptr; // so we RET('\n') next.
RET(TOKEN_SINGLE_COMMENT);
}
token = matchptr;
RET('\n');
}
"\000" {
if (eoi)
{
if (s->report_comments)
RET(TOKEN_SINGLE_COMMENT);
else
RET(TOKEN_EOI);
}
goto singlelinecomment;
}
ANY { goto singlelinecomment; }
*/
ppdirective:
if (YYLIMIT == YYCURSOR) YYFILL(1);
/*!re2c
PP "include" { RET(TOKEN_PP_INCLUDE); }
PP "line" { RET(TOKEN_PP_LINE); }
PP "define" { RET(TOKEN_PP_DEFINE); }
PP "undef" { RET(TOKEN_PP_UNDEF); }
PP "if" { RET(TOKEN_PP_IF); }
PP "ifdef" { RET(TOKEN_PP_IFDEF); }
PP "ifndef" { RET(TOKEN_PP_IFNDEF); }
PP "else" { RET(TOKEN_PP_ELSE); }
PP "elif" { RET(TOKEN_PP_ELIF); }
PP "endif" { RET(TOKEN_PP_ENDIF); }
PP "error" { RET(TOKEN_PP_ERROR); }
PP "pragma" { RET(TOKEN_PP_PRAGMA); }
WHITESPACE { goto ppdirective; }
ANY {
token = cursor = (const uchar *) s->source;
limit = cursor + s->bytes_left;
goto scanner_loop;
}
*/
bad_chars:
if (YYLIMIT == YYCURSOR) YYFILL(1);
/*!re2c
ANYLEGAL { cursor--; RET(TOKEN_BAD_CHARS); }
"\000" {
if (eoi)
{
assert( !((token >= sentinel) &&
(token < sentinel+YYMAXFILL)) );
eoi = 0;
cursor = (uchar *) s->source_base + s->orig_length;
RET(TOKEN_BAD_CHARS); // next call will be EOI.
}
goto bad_chars;
}
ANY { goto bad_chars; }
*/
assert(0 && "Shouldn't hit this code");
RET(TOKEN_UNKNOWN);
} // preprocessor_lexer
// end of mojoshader_lexer.re (or .c) ...