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-rw-r--r--fitz/base_error.c5
-rw-r--r--fitz/fitz.h3
-rw-r--r--pdf/pdf_font.c8
-rw-r--r--pdf/pdf_function.c6
-rw-r--r--pdf/pdf_image.c26
-rw-r--r--pdf/pdf_interpret.c7
-rw-r--r--pdf/pdf_parse.c14
-rw-r--r--pdf/pdf_repair.c16
-rw-r--r--pdf/pdf_shade.c10
-rw-r--r--pdf/pdf_stream.c8
-rw-r--r--pdf/pdf_xref.c16
11 files changed, 86 insertions, 33 deletions
diff --git a/fitz/base_error.c b/fitz/base_error.c
index b844fb6a..bd6801eb 100644
--- a/fitz/base_error.c
+++ b/fitz/base_error.c
@@ -2,6 +2,11 @@
/* Warning context */
+void fz_var_imp(void *var)
+{
+ var = var; /* Do nothing */
+}
+
void fz_flush_warnings(fz_context *ctx)
{
if (ctx->warn->count > 1)
diff --git a/fitz/fitz.h b/fitz/fitz.h
index 70d14086..09c12c14 100644
--- a/fitz/fitz.h
+++ b/fitz/fitz.h
@@ -162,6 +162,9 @@ struct fz_error_context_s
char message[256];
};
+void fz_var_imp(void *);
+#define fz_var(var) fz_var_imp((void *)&(var))
+
#define fz_try(ctx) \
if (fz_push_try(ctx->error), \
!setjmp(ctx->error->stack[ctx->error->top].buffer)) \
diff --git a/pdf/pdf_font.c b/pdf/pdf_font.c
index 3a94527b..b33cbbc0 100644
--- a/pdf/pdf_font.c
+++ b/pdf/pdf_font.c
@@ -391,7 +391,7 @@ pdf_load_simple_font(pdf_xref *xref, fz_obj *dict)
fz_obj *encoding;
fz_obj *widths;
unsigned short *etable = NULL;
- pdf_font_desc * volatile fontdesc;
+ pdf_font_desc *fontdesc;
FT_Face face;
FT_CharMap cmap;
int symbolic;
@@ -405,6 +405,8 @@ pdf_load_simple_font(pdf_xref *xref, fz_obj *dict)
int fterr;
fz_context *ctx = xref->ctx;
+ fz_var(fontdesc);
+
basefont = fz_to_name(fz_dict_gets(dict, "BaseFont"));
fontname = clean_font_name(basefont);
@@ -696,7 +698,7 @@ load_cid_font(pdf_xref *xref, fz_obj *dict, fz_obj *encoding, fz_obj *to_unicode
{
fz_obj *widths;
fz_obj *descriptor;
- pdf_font_desc * volatile fontdesc;
+ pdf_font_desc *fontdesc;
FT_Face face;
int kind;
char collection[256];
@@ -706,6 +708,8 @@ load_cid_font(pdf_xref *xref, fz_obj *dict, fz_obj *encoding, fz_obj *to_unicode
int dw;
fz_context *ctx = xref->ctx;
+ fz_var(fontdesc);
+
fz_try(ctx)
{
/* Get font name and CID collection */
diff --git a/pdf/pdf_function.c b/pdf/pdf_function.c
index 3ef0d75f..82c29dfd 100644
--- a/pdf/pdf_function.c
+++ b/pdf/pdf_function.c
@@ -817,13 +817,15 @@ parse_code(pdf_function *func, fz_stream *stream, int *codeptr)
static void
load_postscript_func(pdf_function *func, pdf_xref *xref, fz_obj *dict, int num, int gen)
{
- fz_stream * volatile stream = NULL;
+ fz_stream *stream = NULL;
int codeptr;
char buf[64];
int tok;
int len;
fz_context *ctx = xref->ctx;
+ fz_var(stream);
+
fz_try(ctx)
{
stream = pdf_open_stream(xref, num, gen);
@@ -1328,7 +1330,7 @@ pdf_function *
pdf_load_function(pdf_xref *xref, fz_obj *dict)
{
fz_context *ctx = xref->ctx;
- pdf_function * volatile func;
+ pdf_function *func;
fz_obj *obj;
int i;
diff --git a/pdf/pdf_image.c b/pdf/pdf_image.c
index b8785cf4..f8c4277c 100644
--- a/pdf/pdf_image.c
+++ b/pdf/pdf_image.c
@@ -28,25 +28,31 @@ pdf_mask_color_key(fz_pixmap *pix, int n, int *colorkey)
static fz_pixmap *
pdf_load_image_imp(pdf_xref *xref, fz_obj *rdb, fz_obj *dict, fz_stream *cstm, int forcemask)
{
- fz_stream * volatile stm = NULL;
- fz_pixmap * volatile tile = NULL;
+ fz_stream *stm = NULL;
+ fz_pixmap *tile = NULL;
fz_obj *obj, *res;
int w, h, bpc, n;
int imagemask;
int interpolate;
int indexed;
- fz_colorspace * volatile colorspace = NULL;
- fz_pixmap * volatile mask = NULL; /* explicit mask/softmask image */
+ fz_colorspace *colorspace = NULL;
+ fz_pixmap *mask = NULL; /* explicit mask/softmask image */
int usecolorkey;
int colorkey[FZ_MAX_COLORS * 2];
float decode[FZ_MAX_COLORS * 2];
int stride;
- unsigned char * volatile samples = NULL;
+ unsigned char *samples = NULL;
int i, len;
fz_context *ctx = xref->ctx;
+ fz_var(stm);
+ fz_var(tile);
+ fz_var(colorspace);
+ fz_var(mask);
+ fz_var(samples);
+
fz_try(ctx)
{
/* special case for JPEG2000 images */
@@ -285,12 +291,15 @@ pdf_is_jpx_image(fz_context *ctx, fz_obj *dict)
static fz_pixmap *
pdf_load_jpx_image(pdf_xref *xref, fz_obj *dict)
{
- fz_buffer * volatile buf = NULL;
- fz_colorspace * volatile colorspace = NULL;
+ fz_buffer *buf = NULL;
+ fz_colorspace *colorspace = NULL;
fz_pixmap *img;
fz_obj *obj;
fz_context *ctx = xref->ctx;
+ fz_var(buf);
+ fz_var(colorspace);
+
buf = pdf_load_stream(xref, fz_to_num(dict), fz_to_gen(dict));
/* RJW: "cannot load jpx image data" */
@@ -307,7 +316,10 @@ pdf_load_jpx_image(pdf_xref *xref, fz_obj *dict)
/* RJW: "cannot load jpx image" */
if (colorspace)
+ {
fz_drop_colorspace(ctx, colorspace);
+ colorspace = NULL;
+ }
fz_drop_buffer(ctx, buf);
buf = NULL;
diff --git a/pdf/pdf_interpret.c b/pdf/pdf_interpret.c
index 6d312724..b82b4297 100644
--- a/pdf/pdf_interpret.c
+++ b/pdf/pdf_interpret.c
@@ -2452,10 +2452,13 @@ pdf_run_buffer(pdf_csi *csi, fz_obj *rdb, fz_buffer *contents)
{
fz_context *ctx = csi->dev->ctx;
int len = sizeof csi->xref->scratch;
- char * volatile buf = NULL;
- fz_stream * volatile file = NULL;
+ char *buf = NULL;
+ fz_stream * file = NULL;
int save_in_text;
+ fz_var(buf);
+ fz_var(file);
+
fz_try(ctx)
{
buf = fz_malloc(ctx, len); /* we must be re-entrant for type3 fonts */
diff --git a/pdf/pdf_parse.c b/pdf/pdf_parse.c
index 6b7fdb12..7174c23a 100644
--- a/pdf/pdf_parse.c
+++ b/pdf/pdf_parse.c
@@ -302,14 +302,18 @@ end:
fz_obj *
pdf_parse_dict(pdf_xref *xref, fz_stream *file, char *buf, int cap)
{
- fz_obj * volatile dict = NULL;
- fz_obj * volatile key = NULL;
- fz_obj * volatile val = NULL;
+ fz_obj *dict = NULL;
+ fz_obj *key = NULL;
+ fz_obj *val = NULL;
int tok;
int len;
int a, b;
fz_context *ctx = file->ctx;
+ fz_var(dict);
+ fz_var(key);
+ fz_var(val);
+
dict = fz_new_dict(ctx, 8);
fz_try(ctx)
@@ -430,13 +434,15 @@ pdf_parse_ind_obj(pdf_xref *xref,
fz_stream *file, char *buf, int cap,
int *onum, int *ogen, int *ostmofs)
{
- fz_obj * volatile obj = NULL;
+ fz_obj *obj = NULL;
int num = 0, gen = 0, stm_ofs;
int tok;
int len;
int a, b;
fz_context *ctx = file->ctx;
+ fz_var(obj);
+
tok = pdf_lex(file, buf, cap, &len);
/* RJW: cannot parse indirect object (%d %d R)", num, gen */
if (tok != PDF_TOK_INT)
diff --git a/pdf/pdf_repair.c b/pdf/pdf_repair.c
index 7930b5b5..bfa89751 100644
--- a/pdf/pdf_repair.c
+++ b/pdf/pdf_repair.c
@@ -192,12 +192,12 @@ pdf_repair_xref(pdf_xref *xref, char *buf, int bufsize)
fz_obj *dict, *obj;
fz_obj *length;
- fz_obj * volatile encrypt = NULL;
- fz_obj * volatile id = NULL;
- fz_obj * volatile root = NULL;
- fz_obj * volatile info = NULL;
+ fz_obj *encrypt = NULL;
+ fz_obj *id = NULL;
+ fz_obj *root = NULL;
+ fz_obj *info = NULL;
- struct entry * volatile list = NULL;
+ struct entry *list = NULL;
int listlen;
int listcap;
int maxnum = 0;
@@ -211,6 +211,12 @@ pdf_repair_xref(pdf_xref *xref, char *buf, int bufsize)
int i, n, c;
fz_context *ctx = xref->ctx;
+ fz_var(encrypt);
+ fz_var(id);
+ fz_var(root);
+ fz_var(info);
+ fz_var(list);
+
fz_seek(xref->file, 0, 0);
fz_try(ctx)
diff --git a/pdf/pdf_shade.c b/pdf/pdf_shade.c
index b281542b..3803f77e 100644
--- a/pdf/pdf_shade.c
+++ b/pdf/pdf_shade.c
@@ -960,15 +960,19 @@ pdf_load_type7_shade(fz_shade *shade, pdf_xref *xref, fz_obj *dict,
static fz_shade *
pdf_load_shading_dict(pdf_xref *xref, fz_obj *dict, fz_matrix transform)
{
- fz_shade * volatile shade = NULL;
- pdf_function * volatile func[FZ_MAX_COLORS] = { NULL };
- fz_stream * volatile stream = NULL;
+ fz_shade *shade = NULL;
+ pdf_function *func[FZ_MAX_COLORS] = { NULL };
+ fz_stream *stream = NULL;
fz_obj *obj;
int funcs;
int type;
int i;
fz_context *ctx = xref->ctx;
+ fz_var(shade);
+ fz_var(func);
+ fz_var(stream);
+
fz_try(ctx)
{
shade = fz_malloc(ctx, sizeof(fz_shade));
diff --git a/pdf/pdf_stream.c b/pdf/pdf_stream.c
index 614f076a..0a38d20f 100644
--- a/pdf/pdf_stream.c
+++ b/pdf/pdf_stream.c
@@ -228,9 +228,11 @@ pdf_open_inline_stream(fz_stream *chain, pdf_xref *xref, fz_obj *stmobj, int len
fz_stream *
pdf_open_raw_stream(pdf_xref *xref, int num, int gen)
{
- pdf_xref_entry * volatile x;
+ pdf_xref_entry *x;
fz_stream *stm;
+ fz_var(x);
+
if (num < 0 || num >= xref->len)
fz_throw(xref->ctx, "object id out of range (%d %d R)", num, gen);
@@ -341,7 +343,9 @@ pdf_load_stream(pdf_xref *xref, int num, int gen)
fz_stream *stm;
fz_obj *dict, *obj;
int i, len, n;
- fz_buffer * volatile buf;
+ fz_buffer *buf;
+
+ fz_var(buf);
stm = pdf_open_stream(xref, num, gen);
/* RJW: "cannot open stream (%d %d R)", num, gen */
diff --git a/pdf/pdf_xref.c b/pdf/pdf_xref.c
index d391e55c..b447dde6 100644
--- a/pdf/pdf_xref.c
+++ b/pdf/pdf_xref.c
@@ -297,7 +297,7 @@ static fz_obj *
pdf_read_new_xref(pdf_xref *xref, char *buf, int cap)
{
fz_stream *stm;
- fz_obj * volatile trailer = NULL;
+ fz_obj *trailer = NULL;
fz_obj *index = NULL;
fz_obj *obj = NULL;
int num, gen, stm_ofs;
@@ -305,6 +305,8 @@ pdf_read_new_xref(pdf_xref *xref, char *buf, int cap)
int t;
fz_context *ctx = xref->ctx;
+ fz_var(trailer);
+
fz_try(ctx)
{
trailer = pdf_parse_ind_obj(xref, xref->file, buf, cap, &num, &gen, &stm_ofs);
@@ -579,9 +581,11 @@ pdf_read_ocg(pdf_xref *xref)
{
fz_obj *obj, *ocg;
int len, i;
- pdf_ocg_descriptor * volatile desc;
+ pdf_ocg_descriptor *desc;
fz_context *ctx = xref->ctx;
+ fz_var(desc);
+
obj = fz_dict_gets(fz_dict_gets(xref->trailer, "Root"), "OCProperties");
if (obj == NULL)
return;
@@ -844,8 +848,8 @@ pdf_load_obj_stm(pdf_xref *xref, int num, int gen, char *buf, int cap)
{
fz_stream *stm;
fz_obj *objstm;
- int * volatile numbuf = NULL;
- int * volatile ofsbuf = NULL;
+ int *numbuf = NULL;
+ int *ofsbuf = NULL;
fz_obj *obj;
int first;
@@ -854,8 +858,8 @@ pdf_load_obj_stm(pdf_xref *xref, int num, int gen, char *buf, int cap)
int tok;
fz_context *ctx = xref->ctx;
- //fz_var(numbuf);
- //fz_var(ofsbuf);
+ fz_var(numbuf);
+ fz_var(ofsbuf);
fz_try(ctx)
{
objstm = pdf_load_object(xref, num, gen);
generated by cgit v1.2.3 (git 2.25.1) at 2025-03-20 06:34:20 +0000