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Diffstat (limited to 'src/glsl/pp/sl_pp_if.c')
-rw-r--r--src/glsl/pp/sl_pp_if.c343
1 files changed, 0 insertions, 343 deletions
diff --git a/src/glsl/pp/sl_pp_if.c b/src/glsl/pp/sl_pp_if.c
deleted file mode 100644
index 6b7a1590b4..0000000000
--- a/src/glsl/pp/sl_pp_if.c
+++ /dev/null
@@ -1,343 +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_context.h"
-#include "sl_pp_expression.h"
-#include "sl_pp_macro.h"
-#include "sl_pp_process.h"
-#include "sl_pp_token.h"
-
-
-static int
-_macro_is_defined(struct sl_pp_context *context,
- int macro_name)
-{
- unsigned int i;
- struct sl_pp_macro *macro;
-
- for (i = 0; i < context->num_extensions; i++) {
- if (macro_name == context->extensions[i].name) {
- return 1;
- }
- }
-
- for (macro = context->macro; macro; macro = macro->next) {
- if (macro_name == macro->name) {
- return 1;
- }
- }
-
- return 0;
-}
-
-static int
-_parse_defined(struct sl_pp_context *context,
- struct sl_pp_token_buffer *buffer,
- struct sl_pp_process_state *state)
-{
- struct sl_pp_token_info input;
- int parens = 0;
- int defined;
- struct sl_pp_token_info result;
-
- if (sl_pp_token_buffer_skip_white(buffer, &input)) {
- return -1;
- }
-
- if (input.token == SL_PP_LPAREN) {
- if (sl_pp_token_buffer_skip_white(buffer, &input)) {
- return -1;
- }
- parens = 1;
- }
-
- if (input.token != SL_PP_IDENTIFIER) {
- strcpy(context->error_msg, "expected an identifier");
- return -1;
- }
-
- defined = _macro_is_defined(context, input.data.identifier);
-
- if (parens) {
- if (sl_pp_token_buffer_skip_white(buffer, &input)) {
- return -1;
- }
- if (input.token != SL_PP_RPAREN) {
- strcpy(context->error_msg, "expected `)'");
- return -1;
- }
- }
-
- 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].u.condition) {
- return 0;
- }
- }
- return 1;
-}
-
-static int
-_parse_if(struct sl_pp_context *context,
- struct sl_pp_token_buffer *buffer)
-{
- struct sl_pp_process_state state;
- int found_end = 0;
- 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));
- while (!found_end) {
- struct sl_pp_token_info input;
-
- sl_pp_token_buffer_get(buffer, &input);
- switch (input.token) {
- case SL_PP_WHITESPACE:
- break;
-
- case SL_PP_IDENTIFIER:
- if (input.data.identifier == context->dict.defined) {
- if (_parse_defined(context, buffer, &state)) {
- free(state.out);
- return -1;
- }
- } else {
- sl_pp_token_buffer_unget(buffer, &input);
- if (sl_pp_macro_expand(context, buffer, NULL, &state, sl_pp_macro_expand_unknown_to_0)) {
- free(state.out);
- return -1;
- }
- }
- break;
-
- case SL_PP_NEWLINE:
- case SL_PP_EOF:
- found_end = 1;
- break;
-
- default:
- if (sl_pp_process_out(&state, &input)) {
- strcpy(context->error_msg, "out of memory");
- free(state.out);
- return -1;
- }
- }
- }
-
- 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].value = 0;
- context->if_stack[context->if_ptr].u.condition = result ? 1 : 0;
- context->if_value = _evaluate_if_stack(context);
-
- return 0;
-}
-
-static int
-_parse_else(struct sl_pp_context *context)
-{
- union sl_pp_if_state *state = &context->if_stack[context->if_ptr];
-
- if (context->if_ptr == SL_PP_MAX_IF_NESTING) {
- strcpy(context->error_msg, "no matching `#if'");
- return -1;
- }
-
- if (state->u.went_thru_else) {
- strcpy(context->error_msg, "no matching `#if'");
- return -1;
- }
-
- /* Once we had a true condition, the subsequent #elifs should always be false. */
- state->u.had_true_cond |= state->u.condition;
-
- /* Update current condition value and mark that we are in the #else block. */
- state->u.condition = !(state->u.had_true_cond | state->u.condition);
- state->u.went_thru_else = 1;
- context->if_value = _evaluate_if_stack(context);
-
- return 0;
-}
-
-int
-sl_pp_process_if(struct sl_pp_context *context,
- struct sl_pp_token_buffer *buffer)
-{
- return _parse_if(context, buffer);
-}
-
-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:
- context->if_ptr--;
- context->if_stack[context->if_ptr].value = 0;
- context->if_stack[context->if_ptr].u.condition = _macro_is_defined(context, input[i].data.identifier);
- 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:
- context->if_ptr--;
- context->if_stack[context->if_ptr].value = 0;
- context->if_stack[context->if_ptr].u.condition = !_macro_is_defined(context, input[i].data.identifier);
- 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,
- struct sl_pp_token_buffer *buffer)
-{
- if (_parse_else(context)) {
- return -1;
- }
-
- if (context->if_stack[context->if_ptr].u.condition) {
- context->if_ptr++;
- if (_parse_if(context, buffer)) {
- return -1;
- }
- }
-
- /* We are still in the #if block. */
- context->if_stack[context->if_ptr].u.went_thru_else = 0;
-
- 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;
-}
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