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Cleanups

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This commit is contained in:
twinaphex 2020-07-09 02:35:32 +02:00
parent 298413dce8
commit 638d692d2e
1 changed files with 16 additions and 32 deletions
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48
libretro-common/streams/memory_stream.c
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@ -40,12 +40,6 @@ struct memstream
unsigned writing;
};
static void memstream_update_pos(memstream_t *stream)
{
if (stream && stream->ptr > stream->max_ptr)
stream->max_ptr = stream->ptr;
}
void memstream_set_buffer(uint8_t *buffer, uint64_t size)
{
g_buffer = buffer;
@ -57,19 +51,6 @@ uint64_t memstream_get_last_size(void)
return last_file_size;
}
static void memstream_init(memstream_t *stream,
uint8_t *buffer, uint64_t max_size, unsigned writing)
{
if (!stream)
return;
stream->buf = buffer;
stream->size = max_size;
stream->ptr = 0;
stream->max_ptr = 0;
stream->writing = writing;
}
memstream_t *memstream_open(unsigned writing)
{
memstream_t *stream;
@ -81,13 +62,11 @@ memstream_t *memstream_open(unsigned writing)
if (!stream)
return NULL;
stream->buf = NULL;
stream->size = 0;
stream->buf = g_buffer;
stream->size = g_size;
stream->ptr = 0;
stream->max_ptr = 0;
stream->writing = 0;
memstream_init(stream, g_buffer, g_size, writing);
stream->writing = writing;
g_buffer = NULL;
g_size = 0;
@ -116,17 +95,19 @@ uint64_t memstream_read(memstream_t *stream, void *data, uint64_t bytes)
if (!stream)
return 0;
avail = stream->size - stream->ptr;
avail = stream->size - stream->ptr;
if (bytes > avail)
bytes = avail;
bytes = avail;
memcpy(data, stream->buf + stream->ptr, (size_t)bytes);
stream->ptr += bytes;
memstream_update_pos(stream);
stream->ptr += bytes;
if (stream->ptr > stream->max_ptr)
stream->max_ptr = stream->ptr;
return bytes;
}
uint64_t memstream_write(memstream_t *stream, const void *data, uint64_t bytes)
uint64_t memstream_write(memstream_t *stream,
const void *data, uint64_t bytes)
{
uint64_t avail = 0;
@ -139,7 +120,8 @@ uint64_t memstream_write(memstream_t *stream, const void *data, uint64_t bytes)
memcpy(stream->buf + stream->ptr, data, (size_t)bytes);
stream->ptr += bytes;
memstream_update_pos(stream);
if (stream->ptr > stream->max_ptr)
stream->max_ptr = stream->ptr;
return bytes;
}
@ -193,7 +175,8 @@ int memstream_getc(memstream_t *stream)
return EOF;
ret = stream->buf[stream->ptr++];
memstream_update_pos(stream);
if (stream->ptr > stream->max_ptr)
stream->max_ptr = stream->ptr;
return ret;
}
@ -203,5 +186,6 @@ void memstream_putc(memstream_t *stream, int c)
if (stream->ptr < stream->size)
stream->buf[stream->ptr++] = c;
memstream_update_pos(stream);
if (stream->ptr > stream->max_ptr)
stream->max_ptr = stream->ptr;
}