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Diffstat (limited to 'src/glsl/pp/sl_pp_purify.c')
-rw-r--r--src/glsl/pp/sl_pp_purify.c302
1 files changed, 0 insertions, 302 deletions
diff --git a/src/glsl/pp/sl_pp_purify.c b/src/glsl/pp/sl_pp_purify.c
deleted file mode 100644
index acc000cf3d..0000000000
--- a/src/glsl/pp/sl_pp_purify.c
+++ /dev/null
@@ -1,302 +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 <stdarg.h>
-#include <stdio.h>
-#include "sl_pp_purify.h"
-
-
-/*
- * Preprocessor purifier performs the following tasks.
- * - Convert all variants of newlines into a Unix newline.
- * - Merge continued lines into a single long line.
- * - Remove line comments and replace block comments with whitespace.
- */
-
-
-static unsigned int
-_purify_newline(const char *input,
- char *out,
- unsigned int *current_line)
-{
- if (input[0] == '\n') {
- *out = '\n';
- (*current_line)++;
- if (input[1] == '\r') {
- /*
- * The GLSL spec is not explicit about whether this
- * combination is a valid newline or not.
- * Let's assume it is acceptable.
- */
- return 2;
- }
- return 1;
- }
- if (input[0] == '\r') {
- *out = '\n';
- (*current_line)++;
- if (input[1] == '\n') {
- return 2;
- }
- return 1;
- }
- *out = input[0];
- return 1;
-}
-
-
-static unsigned int
-_purify_backslash(const char *input,
- char *out,
- unsigned int *current_line)
-{
- unsigned int eaten = 0;
-
- for (;;) {
- if (input[0] == '\\') {
- char next;
- unsigned int next_eaten;
- unsigned int next_line = *current_line;
-
- eaten++;
- input++;
-
- next_eaten = _purify_newline(input, &next, &next_line);
- if (next == '\n') {
- /*
- * If this is really a line continuation sequence, eat
- * it and do not exit the loop.
- */
- eaten += next_eaten;
- input += next_eaten;
- *current_line = next_line;
- } else {
- /*
- * It is an error to put anything between a backslash
- * and a newline and still expect it to behave like a line
- * continuation sequence.
- * Even if it is an innocent whitespace.
- */
- *out = '\\';
- break;
- }
- } else {
- eaten += _purify_newline(input, out, current_line);
- break;
- }
- }
- return eaten;
-}
-
-
-static void
-_report_error(char *buf,
- unsigned int cbbuf,
- const char *msg,
- ...)
-{
- va_list args;
-
- va_start(args, msg);
- vsnprintf(buf, cbbuf, msg, args);
- va_end(args);
-}
-
-
-void
-sl_pp_purify_state_init(struct sl_pp_purify_state *state,
- const char *input,
- const struct sl_pp_purify_options *options)
-{
- state->options = *options;
- state->input = input;
- state->current_line = 1;
- state->inside_c_comment = 0;
-}
-
-
-static unsigned int
-_purify_comment(struct sl_pp_purify_state *state,
- char *output,
- unsigned int *current_line,
- char *errormsg,
- unsigned int cberrormsg)
-{
- for (;;) {
- unsigned int eaten;
- char next;
-
- eaten = _purify_backslash(state->input, &next, current_line);
- state->input += eaten;
- while (next == '*') {
- eaten = _purify_backslash(state->input, &next, current_line);
- state->input += eaten;
- if (next == '/') {
- *output = ' ';
- state->inside_c_comment = 0;
- return 1;
- }
- }
- if (next == '\n') {
- *output = '\n';
- state->inside_c_comment = 1;
- return 1;
- }
- if (next == '\0') {
- _report_error(errormsg, cberrormsg, "expected `*/' but end of translation unit found");
- return 0;
- }
- }
-}
-
-
-unsigned int
-sl_pp_purify_getc(struct sl_pp_purify_state *state,
- char *output,
- unsigned int *current_line,
- char *errormsg,
- unsigned int cberrormsg)
-{
- unsigned int eaten;
-
- if (state->inside_c_comment) {
- return _purify_comment(state, output, current_line, errormsg, cberrormsg);
- }
-
- eaten = _purify_backslash(state->input, output, current_line);
- state->input += eaten;
- if (*output == '/') {
- char next;
- unsigned int next_line = *current_line;
-
- eaten = _purify_backslash(state->input, &next, &next_line);
- if (next == '/') {
- state->input += eaten;
- *current_line = next_line;
-
- /* Replace a line comment with either a newline or nil. */
- for (;;) {
- eaten = _purify_backslash(state->input, &next, current_line);
- state->input += eaten;
- if (next == '\n' || next == '\0') {
- *output = next;
- return eaten;
- }
- }
- } else if (next == '*') {
- state->input += eaten;
- *current_line = next_line;
-
- return _purify_comment(state, output, current_line, errormsg, cberrormsg);
- }
- }
- return eaten;
-}
-
-
-struct out_buf {
- char *out;
- unsigned int len;
- unsigned int capacity;
- unsigned int current_line;
- char *errormsg;
- unsigned int cberrormsg;
-};
-
-
-static int
-_out_buf_putc(struct out_buf *obuf,
- char c)
-{
- if (obuf->len >= obuf->capacity) {
- unsigned int new_max = obuf->capacity;
-
- if (new_max < 0x100) {
- new_max = 0x100;
- } else if (new_max < 0x10000) {
- new_max *= 2;
- } else {
- new_max += 0x10000;
- }
-
- obuf->out = realloc(obuf->out, new_max);
- if (!obuf->out) {
- _report_error(obuf->errormsg, obuf->cberrormsg, "out of memory");
- return -1;
- }
- obuf->capacity = new_max;
- }
-
- obuf->out[obuf->len++] = c;
-
- return 0;
-}
-
-
-int
-sl_pp_purify(const char *input,
- const struct sl_pp_purify_options *options,
- char **output,
- char *errormsg,
- unsigned int cberrormsg,
- unsigned int *errorline)
-{
- struct out_buf obuf;
- struct sl_pp_purify_state state;
-
- obuf.out = NULL;
- obuf.len = 0;
- obuf.capacity = 0;
- obuf.current_line = 1;
- obuf.errormsg = errormsg;
- obuf.cberrormsg = cberrormsg;
-
- sl_pp_purify_state_init(&state, input, options);
-
- for (;;) {
- unsigned int eaten;
- char c;
-
- eaten = sl_pp_purify_getc(&state, &c, &obuf.current_line, errormsg, cberrormsg);
- if (!eaten) {
- *errorline = obuf.current_line;
- return -1;
- }
- if (_out_buf_putc(&obuf, c)) {
- *errorline = obuf.current_line;
- return -1;
- }
-
- if (c == '\0') {
- break;
- }
- }
-
- *output = obuf.out;
- return 0;
-}
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