diff options
Diffstat (limited to 'src/gallium/auxiliary/tgsi/util/tgsi_text.c')
-rw-r--r-- | src/gallium/auxiliary/tgsi/util/tgsi_text.c | 147 |
1 files changed, 116 insertions, 31 deletions
diff --git a/src/gallium/auxiliary/tgsi/util/tgsi_text.c b/src/gallium/auxiliary/tgsi/util/tgsi_text.c index 9ed0f52fc7..2a50315463 100644 --- a/src/gallium/auxiliary/tgsi/util/tgsi_text.c +++ b/src/gallium/auxiliary/tgsi/util/tgsi_text.c @@ -226,24 +226,21 @@ static const char *file_names[TGSI_FILE_COUNT] = }; static boolean -parse_file( - struct translate_ctx *ctx, - uint *file ) +parse_file( const char **pcur, uint *file ) { uint i; for (i = 0; i < TGSI_FILE_COUNT; i++) { - const char *cur = ctx->cur; + const char *cur = *pcur; if (str_match_no_case( &cur, file_names[i] )) { if (!is_digit_alpha_underscore( cur )) { - ctx->cur = cur; + *pcur = cur; *file = i; return TRUE; } } } - report_error( ctx, "Unknown register file" ); return FALSE; } @@ -290,41 +287,57 @@ parse_opt_writemask( return TRUE; } -/* Parse register part common for decls and operands. - * <register_prefix> ::= <file> `[' <index> +/* <register_file_bracket> ::= <file> `[' */ static boolean -parse_register_prefix( +parse_register_file_bracket( struct translate_ctx *ctx, - uint *file, - uint *index ) + uint *file ) { - if (!parse_file( ctx, file )) + if (!parse_file( &ctx->cur, file )) { + report_error( ctx, "Unknown register file" ); return FALSE; + } eat_opt_white( &ctx->cur ); if (*ctx->cur != '[') { report_error( ctx, "Expected `['" ); return FALSE; } ctx->cur++; + return TRUE; +} + +/* <register_file_bracket_index> ::= <register_file_bracket> <uint> + */ +static boolean +parse_register_file_bracket_index( + struct translate_ctx *ctx, + uint *file, + int *index ) +{ + uint uindex; + + if (!parse_register_file_bracket( ctx, file )) + return FALSE; eat_opt_white( &ctx->cur ); - if (!parse_uint( &ctx->cur, index )) { - report_error( ctx, "Expected literal integer" ); + if (!parse_uint( &ctx->cur, &uindex )) { + report_error( ctx, "Expected literal unsigned integer" ); return FALSE; } + *index = (int) uindex; return TRUE; } -/* Parse register operand. - * <register> ::= <register_prefix> `]' +/* Parse destination register operand. + * <register_dst> ::= <register_file_bracket_index> `]' */ static boolean -parse_register( +parse_register_dst( struct translate_ctx *ctx, uint *file, - uint *index ) + int *index ) { - if (!parse_register_prefix( ctx, file, index )) + if (!parse_register_file_bracket_index( ctx, file, index )) return FALSE; eat_opt_white( &ctx->cur ); if (*ctx->cur != ']') { @@ -332,30 +345,95 @@ parse_register( return FALSE; } ctx->cur++; - /* TODO: Modulate suffix */ + return TRUE; +} + +/* Parse source register operand. + * <register_src> ::= <register_file_bracket_index> `]' | + * <register_file_bracket> <register_dst> `]' | + * <register_file_bracket> <register_dst> `+' <uint> `]' | + * <register_file_bracket> <register_dst> `-' <uint> `]' + */ +static boolean +parse_register_src( + struct translate_ctx *ctx, + uint *file, + int *index, + uint *ind_file, + int *ind_index ) +{ + const char *cur; + uint uindex; + + if (!parse_register_file_bracket( ctx, file )) + return FALSE; + eat_opt_white( &ctx->cur ); + cur = ctx->cur; + if (parse_file( &cur, ind_file )) { + if (!parse_register_dst( ctx, ind_file, ind_index )) + return FALSE; + eat_opt_white( &ctx->cur ); + if (*ctx->cur == '+' || *ctx->cur == '-') { + boolean negate; + + negate = *ctx->cur == '-'; + ctx->cur++; + eat_opt_white( &ctx->cur ); + if (!parse_uint( &ctx->cur, &uindex )) { + report_error( ctx, "Expected literal unsigned integer" ); + return FALSE; + } + if (negate) + *index = -(int) uindex; + else + *index = (int) uindex; + } + else { + *index = 0; + } + } + else { + if (!parse_uint( &ctx->cur, &uindex )) { + report_error( ctx, "Expected literal unsigned integer" ); + return FALSE; + } + *index = (int) uindex; + *ind_file = TGSI_FILE_NULL; + *ind_index = 0; + } + eat_opt_white( &ctx->cur ); + if (*ctx->cur != ']') { + report_error( ctx, "Expected `]'" ); + return FALSE; + } + ctx->cur++; return TRUE; } /* Parse register declaration. - * <register> ::= <register_prefix> `]' | <register_prefix> `..' <index> `]' + * <register_dcl> ::= <register_file_bracket_index> `]' | + * <register_file_bracket_index> `..' <index> `]' */ static boolean parse_register_dcl( struct translate_ctx *ctx, uint *file, - uint *first, - uint *last ) + int *first, + int *last ) { - if (!parse_register_prefix( ctx, file, first )) + if (!parse_register_file_bracket_index( ctx, file, first )) return FALSE; eat_opt_white( &ctx->cur ); if (ctx->cur[0] == '.' && ctx->cur[1] == '.') { + uint uindex; + ctx->cur += 2; eat_opt_white( &ctx->cur ); - if (!parse_uint( &ctx->cur, last )) { + if (!parse_uint( &ctx->cur, &uindex )) { report_error( ctx, "Expected literal integer" ); return FALSE; } + *last = (int) uindex; eat_opt_white( &ctx->cur ); } else { @@ -386,11 +464,11 @@ parse_dst_operand( struct tgsi_full_dst_register *dst ) { uint file; - uint index; + int index; uint writemask; const char *cur; - if (!parse_register( ctx, &file, &index )) + if (!parse_register_dst( ctx, &file, &index )) return FALSE; cur = ctx->cur; @@ -426,7 +504,9 @@ parse_src_operand( const char *cur; float value; uint file; - uint index; + int index; + uint ind_file; + int ind_index; if (*ctx->cur == '-') { cur = ctx->cur; @@ -498,10 +578,15 @@ parse_src_operand( } } - if (!parse_register( ctx, &file, &index )) + if (!parse_register_src( ctx, &file, &index, &ind_file, &ind_index )) return FALSE; src->SrcRegister.File = file; src->SrcRegister.Index = index; + if (ind_file != TGSI_FILE_NULL) { + src->SrcRegister.Indirect = 1; + src->SrcRegisterInd.File = ind_file; + src->SrcRegisterInd.Index = ind_index; + } /* Parse optional swizzle */ @@ -864,8 +949,8 @@ static boolean parse_declaration( struct translate_ctx *ctx ) { struct tgsi_full_declaration decl; uint file; - uint first; - uint last; + int first; + int last; uint writemask; const char *cur; uint advance; |