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https://github.com/PerlGameDev/SDL/pull/299
From 90d7056288282df9febf04acce6712f4071e4103 Mon Sep 17 00:00:00 2001
From: Ryan Schmidt <git@ryandesign.com>
Date: Wed, 26 Jan 2022 02:55:04 -0600
Subject: [PATCH] Fix implicit declaration of _calc_offset
--- a/src/SDLx/Surface.xs
+++ b/src/SDLx/Surface.xs
@@ -16,6 +16,14 @@
#include <SDL_gfxPrimitives.h>
#endif
+int _calc_offset ( SDL_Surface* surface, int x, int y )
+{
+ int offset;
+ offset = (surface->pitch * y) / surface->format->BytesPerPixel;
+ offset += x;
+ return offset;
+}
+
SV * get_pixel32 (SDL_Surface *surface, int x, int y)
{
/* Convert the pixels to 32 bit */
@@ -52,14 +60,6 @@ SV * construct_p_matrix ( SDL_Surface *surface )
return newRV_noinc((SV *)matrix);
}
-int _calc_offset ( SDL_Surface* surface, int x, int y )
-{
- int offset;
- offset = (surface->pitch * y) / surface->format->BytesPerPixel;
- offset += x;
- return offset;
-}
-
unsigned int _get_pixel(SDL_Surface * surface, int offset)
{
unsigned int value;
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