diff options
| -rw-r--r-- | src/gallium/auxiliary/tgsi/util/tgsi_text.c | 330 |
1 files changed, 256 insertions, 74 deletions
diff --git a/src/gallium/auxiliary/tgsi/util/tgsi_text.c b/src/gallium/auxiliary/tgsi/util/tgsi_text.c index bb365d1efe..03c9217243 100644 --- a/src/gallium/auxiliary/tgsi/util/tgsi_text.c +++ b/src/gallium/auxiliary/tgsi/util/tgsi_text.c @@ -49,6 +49,21 @@ static boolean is_digit_alpha_underscore( const char *cur ) return is_digit( cur ) || is_alpha_underscore( cur ); } +static boolean str_match_no_case( const char **pcur, const char *str ) +{ + const char *cur = *pcur; + + while (*str != '\0' && *str == toupper( *cur )) { + str++; + cur++; + } + if (*str == '\0') { + *pcur = cur; + return TRUE; + } + return FALSE; +} + /* Eat zero or more whitespaces. */ static void eat_opt_white( const char **pcur ) @@ -110,28 +125,14 @@ static boolean parse_header( struct translate_ctx *ctx ) { uint processor; - if (ctx->cur[0] == 'F' && ctx->cur[1] == 'R' && ctx->cur[2] == 'A' && ctx->cur[3] == 'G') { - ctx->cur += 4; + if (str_match_no_case( &ctx->cur, "FRAG1.1" )) processor = TGSI_PROCESSOR_FRAGMENT; - } - else if (ctx->cur[0] == 'V' && ctx->cur[1] == 'E' && ctx->cur[2] == 'R' && ctx->cur[3] == 'T') { - ctx->cur += 4; + else if (str_match_no_case( &ctx->cur, "VERT1.1" )) processor = TGSI_PROCESSOR_VERTEX; - } - else if (ctx->cur[0] == 'G' && ctx->cur[1] == 'E' && ctx->cur[2] == 'O' && ctx->cur[3] == 'M') { - ctx->cur += 4; + else if (str_match_no_case( &ctx->cur, "GEOM1.1" )) processor = TGSI_PROCESSOR_GEOMETRY; - } - else { - report_error( ctx, "Unknown processor type" ); - return FALSE; - } - - if (ctx->cur[0] == '1' && ctx->cur[1] == '.' && ctx->cur[2] == '1') { - ctx->cur += 3; - } else { - report_error( ctx, "Unknown version" ); + report_error( ctx, "Unknown header" ); return FALSE; } @@ -187,16 +188,13 @@ parse_file( for (i = 0; i < TGSI_FILE_COUNT; i++) { const char *cur = ctx->cur; - const char *name = file_names[i]; - while (*name != '\0' && *name == toupper( *cur )) { - name++; - cur++; - } - if (*name == '\0' && !is_digit_alpha_underscore( cur )) { - ctx->cur = cur; - *file = i; - return TRUE; + if (str_match_no_case( &cur, file_names[i] )) { + if (!is_digit_alpha_underscore( cur )) { + ctx->cur = cur; + *file = i; + return TRUE; + } } } report_error( ctx, "Unknown register file" ); @@ -204,7 +202,53 @@ parse_file( } static boolean -parse_register( +parse_opt_writemask( + struct translate_ctx *ctx, + uint *writemask ) +{ + const char *cur; + + cur = ctx->cur; + eat_opt_white( &cur ); + if (*cur == '.') { + cur++; + *writemask = TGSI_WRITEMASK_NONE; + eat_opt_white( &cur ); + if (toupper( *cur ) == 'X') { + cur++; + *writemask |= TGSI_WRITEMASK_X; + } + if (toupper( *cur ) == 'Y') { + cur++; + *writemask |= TGSI_WRITEMASK_Y; + } + if (toupper( *cur ) == 'Z') { + cur++; + *writemask |= TGSI_WRITEMASK_Z; + } + if (toupper( *cur ) == 'W') { + cur++; + *writemask |= TGSI_WRITEMASK_W; + } + + if (*writemask == TGSI_WRITEMASK_NONE) { + report_error( ctx, "Writemask expected" ); + return FALSE; + } + + ctx->cur = cur; + } + else { + *writemask = TGSI_WRITEMASK_XYZW; + } + return TRUE; +} + +/* Parse register part common for decls and operands. + * <register_prefix> ::= <file> `[' <index> + */ +static boolean +parse_register_prefix( struct translate_ctx *ctx, uint *file, uint *index ) @@ -222,6 +266,20 @@ parse_register( report_error( ctx, "Expected literal integer" ); return FALSE; } + return TRUE; +} + +/* Parse register operand. + * <register> ::= <register_prefix> `]' + */ +static boolean +parse_register( + struct translate_ctx *ctx, + uint *file, + uint *index ) +{ + if (!parse_register_prefix( ctx, file, index )) + return FALSE; eat_opt_white( &ctx->cur ); if (*ctx->cur != ']') { report_error( ctx, "Expected `]'" ); @@ -232,54 +290,55 @@ parse_register( return TRUE; } +/* Parse register declaration. + * <register> ::= <register_prefix> `]' | <register_prefix> `..' <index> `]' + */ +static boolean +parse_register_dcl( + struct translate_ctx *ctx, + uint *file, + uint *first, + uint *last ) +{ + if (!parse_register_prefix( ctx, file, first )) + return FALSE; + eat_opt_white( &ctx->cur ); + if (ctx->cur[0] == '.' && ctx->cur[1] == '.') { + ctx->cur += 2; + eat_opt_white( &ctx->cur ); + if (!parse_uint( &ctx->cur, last )) { + report_error( ctx, "Expected literal integer" ); + return FALSE; + } + eat_opt_white( &ctx->cur ); + } + else { + *last = *first; + } + if (*ctx->cur != ']') { + report_error( ctx, "Expected `]' or `..'" ); + return FALSE; + } + ctx->cur++; + return TRUE; +} + static boolean parse_dst_operand( struct translate_ctx *ctx, struct tgsi_full_dst_register *dst ) { - const char *cur; uint file; uint index; + uint writemask; if (!parse_register( ctx, &file, &index )) return FALSE; + if (!parse_opt_writemask( ctx, &writemask )) + return FALSE; dst->DstRegister.File = file; dst->DstRegister.Index = index; - - /* Parse optional write mask. - */ - cur = ctx->cur; - eat_opt_white( &cur ); - if (*cur == '.') { - uint writemask = TGSI_WRITEMASK_NONE; - - cur++; - eat_opt_white( &cur ); - if (toupper( *cur ) == 'X') { - cur++; - writemask |= TGSI_WRITEMASK_X; - } - if (toupper( *cur ) == 'Y') { - cur++; - writemask |= TGSI_WRITEMASK_Y; - } - if (toupper( *cur ) == 'Z') { - cur++; - writemask |= TGSI_WRITEMASK_Z; - } - if (toupper( *cur ) == 'W') { - cur++; - writemask |= TGSI_WRITEMASK_W; - } - - if (writemask == TGSI_WRITEMASK_NONE) { - report_error( ctx, "Writemask expected" ); - return FALSE; - } - - dst->DstRegister.WriteMask = writemask; - ctx->cur = cur; - } + dst->DstRegister.WriteMask = writemask; return TRUE; } @@ -478,15 +537,10 @@ static boolean parse_instruction( struct translate_ctx *ctx ) eat_opt_white( &ctx->cur ); for (i = 0; i < TGSI_OPCODE_LAST; i++) { const char *cur = ctx->cur; - const char *op = opcode_info[i].mnemonic; - while (*op != '\0' && *op == toupper( *cur )) { - op++; - cur++; - } - if (*op == '\0') { + if (str_match_no_case( &cur, opcode_info[i].mnemonic )) { /* TODO: _SAT suffix */ - if (*cur == '\0' || eat_white( &cur )) { + if (eat_white( &cur )) { ctx->cur = cur; break; } @@ -525,7 +579,6 @@ static boolean parse_instruction( struct translate_ctx *ctx ) return FALSE; } } - eat_opt_white( &ctx->cur ); advance = tgsi_build_full_instruction( &inst, @@ -539,22 +592,151 @@ static boolean parse_instruction( struct translate_ctx *ctx ) return TRUE; } +static const char *semantic_names[TGSI_SEMANTIC_COUNT] = +{ + "POSITION", + "COLOR", + "BCOLOR", + "FOG", + "PSIZE", + "GENERIC", + "NORMAL" +}; + +static const char *interpolate_names[TGSI_INTERPOLATE_COUNT] = +{ + "CONSTANT", + "LINEAR", + "PERSPECTIVE" +}; + +static boolean parse_declaration( struct translate_ctx *ctx ) +{ + struct tgsi_full_declaration decl; + uint file; + uint first; + uint last; + uint writemask; + const char *cur; + uint advance; + + if (!eat_white( &ctx->cur )) { + report_error( ctx, "Syntax error" ); + return FALSE; + } + if (!parse_register_dcl( ctx, &file, &first, &last )) + return FALSE; + if (!parse_opt_writemask( ctx, &writemask )) + return FALSE; + + decl = tgsi_default_full_declaration(); + decl.Declaration.File = file; + decl.Declaration.UsageMask = writemask; + decl.DeclarationRange.First = first; + decl.DeclarationRange.Last = last; + + cur = ctx->cur; + eat_opt_white( &cur ); + if (*cur == ',') { + uint i; + + cur++; + eat_opt_white( &cur ); + for (i = 0; i < TGSI_SEMANTIC_COUNT; i++) { + if (str_match_no_case( &cur, semantic_names[i] )) { + const char *cur2 = cur; + uint index; + + if (is_digit_alpha_underscore( cur )) + continue; + eat_opt_white( &cur2 ); + if (*cur2 == '[') { + cur2++; + eat_opt_white( &cur2 ); + if (!parse_uint( &cur2, &index )) { + report_error( ctx, "Expected literal integer" ); + return FALSE; + } + eat_opt_white( &cur2 ); + if (*cur2 != ']') { + report_error( ctx, "Expected `]'" ); + return FALSE; + } + cur2++; + + decl.Semantic.SemanticIndex = index; + + cur = cur2; + } + + decl.Declaration.Semantic = 1; + decl.Semantic.SemanticName = i; + + ctx->cur = cur; + break; + } + } + } + + cur = ctx->cur; + eat_opt_white( &cur ); + if (*cur == ',') { + uint i; + + cur++; + eat_opt_white( &cur ); + for (i = 0; i < TGSI_INTERPOLATE_COUNT; i++) { + if (str_match_no_case( &cur, interpolate_names[i] )) { + if (is_digit_alpha_underscore( cur )) + continue; + decl.Declaration.Interpolate = i; + + ctx->cur = cur; + break; + } + } + if (i == TGSI_INTERPOLATE_COUNT) { + report_error( ctx, "Expected semantic or interpolate attribute" ); + return FALSE; + } + } + + advance = tgsi_build_full_declaration( + &decl, + ctx->tokens_cur, + ctx->header, + (uint) (ctx->tokens_end - ctx->tokens_cur) ); + if (advance == 0) + return FALSE; + ctx->tokens_cur += advance; + + return TRUE; +} + static boolean translate( struct translate_ctx *ctx ) { eat_opt_white( &ctx->cur ); if (!parse_header( ctx )) return FALSE; - eat_white( &ctx->cur ); while (*ctx->cur != '\0') { uint label_val = 0; + if (!eat_white( &ctx->cur )) { + report_error( ctx, "Syntax error" ); + return FALSE; + } + if (parse_label( ctx, &label_val )) { if (!parse_instruction( ctx )) return FALSE; } + else if (str_match_no_case( &ctx->cur, "DCL" )) { + if (!parse_declaration( ctx )) + return FALSE; + } else { - report_error( ctx, "Instruction expected" ); + report_error( ctx, "Expected `DCL' or a label" ); return FALSE; } } |