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-rw-r--r--frontend/libretro.c83
1 files changed, 83 insertions, 0 deletions
diff --git a/frontend/libretro.c b/frontend/libretro.c
index 5bf737f..444719a 100644
--- a/frontend/libretro.c
+++ b/frontend/libretro.c
@@ -256,6 +256,85 @@ void pl_3ds_munmap(void *ptr, size_t size, enum psxMapTag tag)
}
#endif
+#ifdef VITA
+typedef struct
+{
+ void* buffer;
+ uint32_t target_map;
+ size_t size;
+ enum psxMapTag tag;
+}psx_map_t;
+
+psx_map_t custom_psx_maps[] = {
+ {NULL, NULL, 0x210000, MAP_TAG_RAM}, // 0x80000000
+ {NULL, NULL, 0x010000, MAP_TAG_OTHER}, // 0x1f800000
+ {NULL, NULL, 0x080000, MAP_TAG_OTHER}, // 0x1fc00000
+ {NULL, NULL, 0x800000, MAP_TAG_LUTS}, // 0x08000000
+ {NULL, NULL, 0x200000, MAP_TAG_VRAM}, // 0x00000000
+};
+
+void* pl_vita_mmap(unsigned long addr, size_t size, int is_fixed,
+ enum psxMapTag tag)
+{
+ (void)is_fixed;
+ (void)addr;
+
+
+ psx_map_t* custom_map = custom_psx_maps;
+
+ for (; custom_map->size; custom_map++)
+ {
+ if ((custom_map->size == size) && (custom_map->tag == tag))
+ {
+ int block, ret;
+ char blockname[32];
+ sprintf(blockname, "CODE 0x%08X",tag);
+
+ block = sceKernelAllocMemBlock(blockname, size + 0x1000);
+ if(block<=0){
+ sceClibPrintf("could not alloc mem block @0x%08X 0x%08X \n", block, tag);
+ exit(1);
+ }
+
+ // get base address
+ ret = sceKernelGetMemBlockBase(block, &custom_map->buffer);
+ if (ret < 0)
+ {
+ sceClibPrintf("could get address @0x%08X 0x%08X 0x%08X \n", block, ret, tag);
+ exit(1);
+ }
+ custom_map->buffer = (((u32)custom_map->buffer) + 0xFFF) & ~0xFFF;
+ custom_map->target_map = block;
+
+ return custom_map->buffer;
+ }
+ }
+
+
+ return malloc(size);
+}
+
+void pl_vita_munmap(void *ptr, size_t size, enum psxMapTag tag)
+{
+ (void)tag;
+
+ psx_map_t* custom_map = custom_psx_maps;
+
+ for (; custom_map->size; custom_map++)
+ {
+ if ((custom_map->buffer == ptr))
+ {
+ sceKernelFreeMemBlock(custom_map->target_map);
+ custom_map->buffer = NULL;
+ custom_map->target_map = NULL;
+ return;
+ }
+ }
+
+ free(ptr);
+}
+#endif
+
static void *pl_mmap(unsigned int size)
{
return psxMap(0, size, 0, MAP_TAG_VRAM);
@@ -1475,6 +1554,10 @@ void retro_init(void)
psxMapHook = pl_3ds_mmap;
psxUnmapHook = pl_3ds_munmap;
#endif
+#ifdef VITA
+ psxMapHook = pl_vita_mmap;
+ psxUnmapHook = pl_vita_munmap;
+#endif
ret = emu_core_preinit();
#ifdef _3DS
/* emu_core_preinit sets the cpu to dynarec */