From 5de9c6377870f0f197844d1de4ac07f77a8fe0a5 Mon Sep 17 00:00:00 2001
From: Pullakavi Srinivas <spullaka@codeaurora.org>
Date: Mon, 30 Jan 2017 20:30:39 +0530
Subject: [PATCH] sdm: Add support to recompute rectangles considering flips

CRs-Fixed: 2006534
Change-Id: I698e9cd6eddf958fa564e4d32fa5b98057eb9f1d
---
 sdm/include/utils/rect.h          |  3 ++-
 sdm/libs/core/display_primary.cpp |  5 ++++-
 sdm/libs/utils/rect.cpp           | 19 ++++++++++++++-----
 3 files changed, 20 insertions(+), 7 deletions(-)

diff --git a/sdm/include/utils/rect.h b/sdm/include/utils/rect.h
index 16a9ba99..ea6edfb1 100644
--- a/sdm/include/utils/rect.h
+++ b/sdm/include/utils/rect.h
@@ -57,7 +57,8 @@ namespace sdm {
                       bool flip_horizontal, LayerRect *out_rects);
   void MapRect(const LayerRect &src_domain, const LayerRect &dst_domain, const LayerRect &in_rect,
                LayerRect *out_rect);
-  void TransformHV(const LayerRect &src_domain, const LayerRect &in_rect, LayerRect *out_rect);
+  void TransformHV(const LayerRect &src_domain, const LayerRect &in_rect,
+                   const LayerTransform &transform, LayerRect *out_rect);
   RectOrientation GetOrientation(const LayerRect &in_rect);
 }  // namespace sdm
 
diff --git a/sdm/libs/core/display_primary.cpp b/sdm/libs/core/display_primary.cpp
index 3a1541e2..409d6592 100644
--- a/sdm/libs/core/display_primary.cpp
+++ b/sdm/libs/core/display_primary.cpp
@@ -91,16 +91,19 @@ DisplayError DisplayPrimary::Prepare(LayerStack *layer_stack) {
   bool needs_hv_flip = hw_panel_info_.panel_orientation.flip_horizontal &&
                           hw_panel_info_.panel_orientation.flip_vertical;
   LayerRect src_domain = {};
+  LayerTransform panel_transform = {};
   DisplayConfigVariableInfo variable_info = {};
 
   if (needs_hv_flip) {
     DisplayBase::GetFrameBufferConfig(&variable_info);
     src_domain.right = variable_info.x_pixels;
     src_domain.bottom = variable_info.y_pixels;
+    panel_transform.flip_horizontal = hw_panel_info_.panel_orientation.flip_horizontal;
+    panel_transform.flip_vertical = hw_panel_info_.panel_orientation.flip_vertical;
 
     for (Layer *layer : layer_stack->layers) {
       // Modify destination based on panel flip
-      TransformHV(src_domain, layer->dst_rect, &layer->dst_rect);
+      TransformHV(src_domain, layer->dst_rect, panel_transform, &layer->dst_rect);
 
       if (layer->flags.solid_fill) {
         continue;
diff --git a/sdm/libs/utils/rect.cpp b/sdm/libs/utils/rect.cpp
index dd5a872c..b0cd536e 100644
--- a/sdm/libs/utils/rect.cpp
+++ b/sdm/libs/utils/rect.cpp
@@ -223,18 +223,27 @@ void MapRect(const LayerRect &src_domain, const LayerRect &dst_domain, const Lay
   out_rect->bottom = dst_domain.top + (height_ratio * modified_in_rect.bottom);
 }
 
-void TransformHV(const LayerRect &src_domain, const LayerRect &in_rect, LayerRect *out_rect) {
+void TransformHV(const LayerRect &src_domain, const LayerRect &in_rect,
+                 const LayerTransform &transform, LayerRect *out_rect) {
   if (!IsValid(src_domain) || !IsValid(in_rect)) {
     return;
   }
 
   float in_width = in_rect.right - in_rect.left;
   float in_height = in_rect.bottom - in_rect.top;
+  float x_offset = in_rect.left - src_domain.left;
+  float y_offset = in_rect.top - src_domain.top;
+  *out_rect = in_rect;
 
-  out_rect->right = src_domain.right - in_rect.left;
-  out_rect->bottom = src_domain.bottom - in_rect.top;
-  out_rect->left = out_rect->right - in_width;
-  out_rect->top = out_rect->bottom - in_height;
+  if (transform.flip_horizontal) {
+    out_rect->right = src_domain.right - x_offset;
+    out_rect->left = out_rect->right - in_width;
+  }
+
+  if (transform.flip_vertical) {
+    out_rect->bottom = src_domain.bottom - y_offset;
+    out_rect->top = out_rect->bottom - in_height;
+  }
 }
 
 RectOrientation GetOrientation(const LayerRect &in_rect) {