X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=plugins%2Fgpulib%2Fgpu.c;h=24fbf3bfc3dda146e9b6703f582028b14b9fafcf;hb=5bd33f52586479b4e4b96418522ceeb330df87f2;hp=65958062d83455071f0fc2bf62a3e87ec830968b;hpb=69ebf30167ddfa86dfbce87f9eb3d7061a5f4955;p=pcsx_rearmed.git

diff --git a/plugins/gpulib/gpu.c b/plugins/gpulib/gpu.c
index 65958062..24fbf3bf 100644
--- a/plugins/gpulib/gpu.c
+++ b/plugins/gpulib/gpu.c
@@ -222,8 +222,9 @@ static noinline void get_gpu_info(uint32_t data)
   }
 }
 
-// double, for overdraw guard
-#define VRAM_SIZE ((1024 * 512 * 2 * 2) + 4096)
+#ifndef max
+#define max(a, b) (((a) > (b)) ? (a) : (b))
+#endif
 
 //  Minimum 16-byte VRAM alignment needed by gpu_unai's pixel-skipping
 //  renderer/downscaler it uses in high res modes:
@@ -235,6 +236,9 @@ static noinline void get_gpu_info(uint32_t data)
 	#define VRAM_ALIGN 16
 #endif
 
+// double, for overdraw guard + at least 1 page before
+#define VRAM_SIZE ((1024 * 512 * 2 * 2) + max(VRAM_ALIGN, 4096))
+
 // vram ptr received from mmap/malloc/alloc (will deallocate using this)
 static uint16_t *vram_ptr_orig = NULL;
 
@@ -248,9 +252,9 @@ static uint16_t *vram_ptr_orig = NULL;
 static int map_vram(void)
 {
 #if GPULIB_USE_MMAP
-  gpu.vram = vram_ptr_orig = gpu.mmap(VRAM_SIZE + (VRAM_ALIGN-1));
+  gpu.vram = vram_ptr_orig = gpu.mmap(VRAM_SIZE);
 #else
-  gpu.vram = vram_ptr_orig = calloc(VRAM_SIZE + (VRAM_ALIGN-1), 1);
+  gpu.vram = vram_ptr_orig = calloc(VRAM_SIZE, 1);
 #endif
   if (gpu.vram != NULL && gpu.vram != (void *)(intptr_t)-1) {
     // 4kb guard in front