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Fix some warnings on uninitialized MVE variables

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This commit is contained in:
Azamat H. Hackimov 2024-09-04 14:26:33 +03:00
parent d185ab9514
commit 8d2935c32c
3 changed files with 19 additions and 12 deletions
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25
libmve/mvelib.cpp
View File

@ -33,8 +33,8 @@ mve_cb_SetPalette mve_setpalette;
/*
* private utility functions
*/
static short _mve_get_short(unsigned char *data);
static unsigned short _mve_get_ushort(unsigned char *data);
static short _mve_get_short(const unsigned char *data);
static unsigned short _mve_get_ushort(const unsigned char *data);
/*
* private functions for mvefile
@ -318,6 +318,8 @@ static void _mvefile_free(MVEFILE *movie) {
* open the file stream in thie object
*/
static int _mvefile_open(MVEFILE *file, void *stream) {
if (!file)
return 0;
file->stream = stream;
if (!file->stream)
return 0;
@ -343,7 +345,7 @@ static int _mvefile_read_header(MVEFILE *movie) {
unsigned char buffer[26];
/* check the file is open */
if (!movie->stream)
if (!movie || !movie->stream)
return 0;
/* check the file is long enough */
@ -351,7 +353,7 @@ static int _mvefile_read_header(MVEFILE *movie) {
return 0;
/* check the signature */
if (memcmp(buffer, MVE_HEADER, 20))
if (memcmp(buffer, MVE_HEADER, 20) != 0)
return 0;
/* check the hard-coded constants */
@ -366,6 +368,9 @@ static int _mvefile_read_header(MVEFILE *movie) {
}
static void _mvefile_set_buffer_size(MVEFILE *movie, int buf_size) {
if (!movie)
return;
unsigned char *new_buffer;
int new_len;
@ -384,7 +389,7 @@ static void _mvefile_set_buffer_size(MVEFILE *movie, int buf_size) {
/* free old buffer */
if (movie->cur_chunk) {
mve_free(movie->cur_chunk);
movie->cur_chunk = 0;
movie->cur_chunk = nullptr;
}
/* install new buffer */
@ -397,7 +402,7 @@ static int _mvefile_fetch_next_chunk(MVEFILE *movie) {
unsigned short length;
/* fail if not open */
if (!movie->stream)
if (!movie || !movie->stream)
return 0;
/* fail if we can't read the next segment descriptor */
@ -419,13 +424,13 @@ static int _mvefile_fetch_next_chunk(MVEFILE *movie) {
return 1;
}
static short _mve_get_short(unsigned char *data) {
static short _mve_get_short(const unsigned char *data) {
short value;
value = data[0] | (data[1] << 8);
return value;
}
static unsigned short _mve_get_ushort(unsigned char *data) {
static unsigned short _mve_get_ushort(const unsigned char *data) {
unsigned short value;
value = data[0] | (data[1] << 8);
return value;
@ -440,7 +445,7 @@ static MVESTREAM *_mvestream_alloc() {
/* allocate and zero-initialize everything */
movie = (MVESTREAM *)mve_alloc(sizeof(MVESTREAM));
movie->movie = nullptr;
movie->context = 0;
movie->context = nullptr;
memset(movie->handlers, 0, sizeof(movie->handlers));
return movie;
@ -469,6 +474,8 @@ static void _mvestream_free(MVESTREAM *movie) {
* open an MVESTREAM object
*/
static int _mvestream_open(MVESTREAM *movie, void *stream) {
if (!movie)
return 0;
movie->movie = mvefile_open(stream);
return (movie->movie == nullptr) ? 0 : 1;

4
libmve/mvelib.h
View File

@ -23,7 +23,7 @@
/* callback for reading stream */
typedef unsigned int (*mve_cb_Read)(void *stream, void *buffer, unsigned int count);
/* callback for memore allocating */
/* callback for memory allocating */
typedef void *(*mve_cb_Alloc)(unsigned int size);
/* callback for memory freeing */
typedef void (*mve_cb_Free)(void *ptr);
@ -76,7 +76,7 @@ void MVE_rmEndMovie(MVESTREAM *mve);
void MVE_getVideoSpec(MVE_videoSpec *vSpec);
// Initialize MVE sound. Set `enable` to false if sound should not be enabled.
void MVE_sndInit(const bool enable);
void MVE_sndInit(bool enable);
void MVE_ioCallbacks(mve_cb_Read io_read);
void MVE_memCallbacks(mve_cb_Alloc mem_alloc, mve_cb_Free mem_free);

2
libmve/mveplay.cpp
View File

@ -470,7 +470,7 @@ void MVE_rmEndMovie(MVESTREAM *mve) {
void MVE_rmHoldMovie() { timer_started = 0; }
void MVE_sndInit(const bool enable) {
void MVE_sndInit(bool enable) {
#ifdef AUDIO
if (enable) {
mve_audio_enabled = 1;