From 4b2a32af59530b969ae4a1144ded8cde2e397fbb Mon Sep 17 00:00:00 2001
From: yellows8 <yellows8@users.noreply.github.com>
Date: Mon, 12 Feb 2018 11:56:29 -0500
Subject: [PATCH] Imported transform enums from Android and updated
 g_gfxQueueBufferData.transform for this.

---
 nx/include/switch/gfx/buffer_producer.h | 40 ++++++++++++++++++++++++-
 nx/source/gfx/gfx.c                     |  2 +-
 2 files changed, 40 insertions(+), 2 deletions(-)

diff --git a/nx/include/switch/gfx/buffer_producer.h b/nx/include/switch/gfx/buffer_producer.h
index 8ade36b3..1d6e30bb 100644
--- a/nx/include/switch/gfx/buffer_producer.h
+++ b/nx/include/switch/gfx/buffer_producer.h
@@ -18,7 +18,7 @@ typedef struct {
     s32 isAutoTimestamp;
     bufferProducerRect crop;
     s32 scalingMode;
-    u32 transform;
+    u32 transform;//See the NATIVE_WINDOW_TRANSFORM_* enums.
     u32 stickyTransform;
     u32 unk[2];
     bufferProducerFence fence;
@@ -104,6 +104,44 @@ enum {
     //...
 };
 
+//From Android hardware.h.
+
+/**
+ * Transformation definitions
+ *
+ * IMPORTANT NOTE:
+ * HAL_TRANSFORM_ROT_90 is applied CLOCKWISE and AFTER HAL_TRANSFORM_FLIP_{H|V}.
+ *
+ */
+
+enum {
+    /* flip source image horizontally (around the vertical axis) */
+    HAL_TRANSFORM_FLIP_H    = 0x01,
+    /* flip source image vertically (around the horizontal axis)*/
+    HAL_TRANSFORM_FLIP_V    = 0x02,
+    /* rotate source image 90 degrees clockwise */
+    HAL_TRANSFORM_ROT_90    = 0x04,
+    /* rotate source image 180 degrees */
+    HAL_TRANSFORM_ROT_180   = 0x03,
+    /* rotate source image 270 degrees clockwise */
+    HAL_TRANSFORM_ROT_270   = 0x07,
+};
+
+//From Android window.h.
+/* parameter for NATIVE_WINDOW_SET_BUFFERS_TRANSFORM */
+enum {
+    /* flip source image horizontally */
+    NATIVE_WINDOW_TRANSFORM_FLIP_H = HAL_TRANSFORM_FLIP_H,
+    /* flip source image vertically */
+    NATIVE_WINDOW_TRANSFORM_FLIP_V = HAL_TRANSFORM_FLIP_V,
+    /* rotate source image 90 degrees clock-wise */
+    NATIVE_WINDOW_TRANSFORM_ROT_90 = HAL_TRANSFORM_ROT_90,
+    /* rotate source image 180 degrees */
+    NATIVE_WINDOW_TRANSFORM_ROT_180 = HAL_TRANSFORM_ROT_180,
+    /* rotate source image 270 degrees clock-wise */
+    NATIVE_WINDOW_TRANSFORM_ROT_270 = HAL_TRANSFORM_ROT_270,
+};
+
 Result bufferProducerInitialize(Binder *session);
 void bufferProducerExit(void);
 
diff --git a/nx/source/gfx/gfx.c b/nx/source/gfx/gfx.c
index cc157573..45420b8b 100644
--- a/nx/source/gfx/gfx.c
+++ b/nx/source/gfx/gfx.c
@@ -57,7 +57,7 @@ static bufferProducerQueueBufferInput g_gfxQueueBufferData = {
     .isAutoTimestamp = 0x1,
     .crop = {0x0, 0x0, 0x0, 0x0}, //Official apps which use multiple resolutions configure this for the currently used resolution, depending on the current appletOperationMode.
     .scalingMode = 0x0,
-    .transform = 0x2,
+    .transform = NATIVE_WINDOW_TRANSFORM_FLIP_V,
     .stickyTransform = 0x0,
     .unk = {0x0, 0x1},