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Merge pull request #644 from Jan200101/PR/alignment 

ensure command alignment is correct
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Adam 2021-10-30 16:15:01 -04:00 committed by GitHub
parent 3f1378ab2e e313eb0e2e
commit 033575c9f4
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1 changed files with 3 additions and 0 deletions
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src/rencache.c
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@ -1,6 +1,7 @@
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdalign.h>
#include <lauxlib.h>
#include "rencache.h"
@ -84,6 +85,8 @@ static RenRect merge_rects(RenRect a, RenRect b) {
static Command* push_command(int type, int size) {
size_t alignment = alignof(max_align_t) - 1;
size = (size + alignment) & ~alignment;
Command *cmd = (Command*) (command_buf + command_buf_idx);
int n = command_buf_idx + size;
if (n > COMMAND_BUF_SIZE) {