gpu_neon: rework buffering to reduce flickering

[pcsx_rearmed.git] / frontend / 3ds / sys / mman.h

diff --git a/frontend/3ds/sys/mman.h b/frontend/3ds/sys/mman.h
index e295b89..fdf5ac6 100644 (file)
--- a/frontend/3ds/sys/mman.h
+++ b/frontend/3ds/sys/mman.h
@@ -7,6 +7,7 @@ extern "C" {
 
 #include <stdlib.h>
 #include <stdio.h>
+#include <string.h>
 #include <stdint.h>
 #include <malloc.h>
 
@@ -32,21 +33,25 @@ static inline void* mmap(void *addr, size_t len, int prot, int flags, int fd, of
    void* addr_out;
 
    if((prot == (PROT_READ | PROT_WRITE | PROT_EXEC)) &&
-      (flags == (MAP_FIXED | MAP_PRIVATE | MAP_ANONYMOUS)))
+      (flags == (MAP_PRIVATE | MAP_ANONYMOUS)))
    {
       if(__ctr_svchax)
       {
          /* this hack works only for pcsx_rearmed */
          uint32_t currentHandle;
 
-         if(!dynarec_cache)
+         if (!dynarec_cache) {
             dynarec_cache = memalign(0x1000, len);
+            if (!dynarec_cache)
+               return MAP_FAILED;
+         }
 
          svcDuplicateHandle(&currentHandle, 0xFFFF8001);
          svcControlProcessMemory(currentHandle, addr, dynarec_cache,
                                  len, MEMOP_MAP, prot);
          svcCloseHandle(currentHandle);
          dynarec_cache_mapping = addr;
+         memset(addr, 0, len);
          return addr;
       }
       else
@@ -57,10 +62,11 @@ static inline void* mmap(void *addr, size_t len, int prot, int flags, int fd, of
 
    }
 
-   addr_out = malloc(len);
-   if(!addr_out)
+   addr_out = memalign(0x1000, len);
+   if (!addr_out)
       return MAP_FAILED;
 
+   memset(addr_out, 0, len);
    return addr_out;
 }