From 3249b05ae4af9cee482b09e3acb373a34430301c Mon Sep 17 00:00:00 2001
From: Henri Vasserman <henv@hot.ee>
Date: Sun, 11 Apr 2021 23:29:54 +0300
Subject: [PATCH] add stride info

---
 xormod.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/xormod.c b/xormod.c
index 51d6c79..e1fdce5 100644
--- a/xormod.c
+++ b/xormod.c
@@ -18,6 +18,7 @@ typedef struct {
     int y2;
     int w;
     int h;
+    int s;
     SDL_Surface *surface;
     SDL_Texture *texture;
     uint32_t *pixels;
@@ -37,11 +38,11 @@ static Picture *Picture_new(SDL_Renderer *rend,
     p->w = w;
     p->h = h;
     p->color = color;
+    p->s = (w + 7) / 8 * 8;
 
-    int stride = (w + 7) / 8 * 8;
-    p->pixels = malloc(stride * h * sizeof(uint32_t));
+    p->pixels = malloc(p->s * h * sizeof(uint32_t));
     p->surface = SDL_CreateRGBSurfaceWithFormatFrom(
-        p->pixels, w, h, 32, stride * sizeof(uint32_t),
+        p->pixels, w, h, 32, p->s * sizeof(uint32_t),
         SDL_PIXELFORMAT_RGBA32);
 
     Picture_render(p, rend);