diff --git a/driver.h b/driver.h
index b068cec523..56812de5d8 100644
--- a/driver.h
+++ b/driver.h
@@ -156,6 +156,7 @@ typedef struct video_driver
    void (*set_swap_block_state)(void *data, bool toggle); // Block swapping from being called in ::frame().
    void (*swap)(void *data); // Explicitly swap buffers. Only useful when set_swap_block_state() is set to true.
 #endif
+   void (*set_rotation)(void *data, unsigned rotation);
 } video_driver_t;
 
 typedef struct driver
@@ -233,6 +234,7 @@ extern const input_driver_t input_xdk360;
 #define video_alive_func()                      driver.video->alive(driver.video_data)
 #define video_focus_func()                      driver.video->focus(driver.video_data)
 #define video_xml_shader_func(path)             driver.video->xml_shader(driver.video_data, path)
+#define video_set_rotation_func(rotate)         driver.video->set_rotation(driver.video_data, rotate)
 #define video_free_func()                       driver.video->free(driver.video_data)
 
 #define input_init_func()                       driver.input->init()
diff --git a/dynamic.c b/dynamic.c
index cbf2245b6f..298290a444 100644
--- a/dynamic.c
+++ b/dynamic.c
@@ -417,6 +417,17 @@ static bool environment_cb(unsigned cmd, void *data)
          *(snes_audio_sample_batch_t*)data = audio_sample_batch;
          break;
 
+      case SNES_ENVIRONMENT_SET_ROTATION:
+      {
+         unsigned rotation = *(const unsigned*)data;
+         SSNES_LOG("Environ SET_ROTATION: %u\n", rotation);
+         if (driver.video && driver.video_data && driver.video->set_rotation)
+            video_set_rotation_func(rotation);
+         else
+            return false;
+         break;
+      }
+
       default:
          SSNES_LOG("Environ UNSUPPORTED (#%u).\n", cmd);
          return false;
diff --git a/libsnes.hpp b/libsnes.hpp
index dffcaeca02..92f7072962 100755
--- a/libsnes.hpp
+++ b/libsnes.hpp
@@ -129,8 +129,12 @@ extern "C" {
                                                 //
 #define SNES_ENVIRONMENT_GET_AUDIO_BATCH_CB 13  // snes_audio_sample_batch_t * --
                                                 // Retrieves callback to a more optimized audio callback.
-
-
+                                                //
+#define SNES_ENVIRONMENT_SET_ROTATION 14        // const unsigned * --
+                                                // Sets screen rotation of graphics.
+                                                // Is only implemented if rotation can be accelerated by hardware.
+                                                // Valid values are 0, 1, 2, 3, which rotates screen by 0, 90, 180, 270 degrees
+                                                // counter-clockwise respectively.
 
 struct snes_message
 {