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Prevent doing unnecessary double strlen

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This commit is contained in:
twinaphex 2020-05-24 16:38:53 +02:00
parent 2f836f786f
commit cf1bc2634d
1 changed files with 4 additions and 5 deletions
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9
gfx/font_driver.c
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@ -946,13 +946,12 @@ static char* font_driver_reshape_msg(const char* msg, unsigned char *buffer, siz
const unsigned char* src = (const unsigned char*)msg;
unsigned char* dst;
bool reverse = false;
size_t msg_size = (strlen(msg) * 2) + 1;
/* fallback to heap allocated buffer if the buffer is too small */
if (buffer_size < (strlen(msg) * 2) + 1)
{
/* worst case transformations are 2 bytes to 4 bytes -- aliaspider */
dst_buffer = (unsigned char*)malloc((strlen(msg) * 2) + 1);
}
/* worst case transformations are 2 bytes to 4 bytes -- aliaspider */
if (buffer_size < msg_size)
dst_buffer = (unsigned char*)malloc(msg_size);
dst = (unsigned char*)dst_buffer;