diff options
Diffstat (limited to 'mesalib/src/glsl/pp/sl_pp_expression.c')
-rw-r--r-- | mesalib/src/glsl/pp/sl_pp_expression.c | 411 |
1 files changed, 0 insertions, 411 deletions
diff --git a/mesalib/src/glsl/pp/sl_pp_expression.c b/mesalib/src/glsl/pp/sl_pp_expression.c deleted file mode 100644 index ec904787d..000000000 --- a/mesalib/src/glsl/pp/sl_pp_expression.c +++ /dev/null @@ -1,411 +0,0 @@ -/************************************************************************** - * - * 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); -} |