From 7d9be9e2fc253288f0b8f7fcf6be50b70ffc189f Mon Sep 17 00:00:00 2001
From: GaryOderNichts <12049776+GaryOderNichts@users.noreply.github.com>
Date: Wed, 20 Jan 2021 20:16:31 +0100
Subject: [PATCH] wiiu: buffer stdio RWops

---
 include/SDL_config.h.cmake |  6 ++++++
 include/SDL_rwops.h        |  3 +++
 src/file/SDL_rwops.c       | 11 +++++++++++
 3 files changed, 20 insertions(+)

diff --git a/include/SDL_config.h.cmake b/include/SDL_config.h.cmake
index bf364fbdf..a93a95d41 100644
--- a/include/SDL_config.h.cmake
+++ b/include/SDL_config.h.cmake
@@ -479,4 +479,10 @@ typedef unsigned int uintptr_t;
 #  endif /* !_STDINT_H_ && !HAVE_STDINT_H */
 #endif /* __WIN32__ */
 
+#if defined(__WIIU__)
+   /* buffer files using setvbuf */
+   #define SDL_USE_FILE_BUFFER 1
+   #define SDL_FILE_BUFFER_SIZE (128*1024)
+#endif
+
 #endif /* SDL_config_h_ */
diff --git a/include/SDL_rwops.h b/include/SDL_rwops.h
index 0960699d4..ba9006431 100644
--- a/include/SDL_rwops.h
+++ b/include/SDL_rwops.h
@@ -125,6 +125,9 @@ typedef struct SDL_RWops
         {
             SDL_bool autoclose;
             FILE *fp;
+#ifdef SDL_USE_FILE_BUFFER
+            char *buffer;
+#endif
         } stdio;
 #endif
         struct
diff --git a/src/file/SDL_rwops.c b/src/file/SDL_rwops.c
index cf5d3aa0b..b0d368ae2 100644
--- a/src/file/SDL_rwops.c
+++ b/src/file/SDL_rwops.c
@@ -60,6 +60,10 @@
 #include "nacl_io/nacl_io.h"
 #endif
 
+#ifdef SDL_USE_FILE_BUFFER
+#include <malloc.h>
+#endif
+
 #ifdef __WIN32__
 
 /* Functions to read/write Win32 API file pointers */
@@ -412,6 +416,9 @@ stdio_close(SDL_RWops * context)
                 status = SDL_Error(SDL_EFWRITE);
             }
         }
+#ifdef SDL_USE_FILE_BUFFER
+        free(context->hidden.stdio.buffer);
+#endif
         SDL_FreeRW(context);
     }
     return status;
@@ -608,6 +615,10 @@ SDL_RWFromFP(FILE * fp, SDL_bool autoclose)
         rwops->write = stdio_write;
         rwops->close = stdio_close;
         rwops->hidden.stdio.fp = fp;
+#ifdef SDL_USE_FILE_BUFFER
+        rwops->hidden.stdio.buffer = (char *) memalign(0x40, SDL_FILE_BUFFER_SIZE);
+        setvbuf(fp, rwops->hidden.stdio.buffer, _IOFBF, SDL_FILE_BUFFER_SIZE);
+#endif
         rwops->hidden.stdio.autoclose = autoclose;
         rwops->type = SDL_RWOPS_STDFILE;
     }