From 5430dd0cd02ff82ac14ce25398e79bef2112d41b Mon Sep 17 00:00:00 2001
From: "Dr. Chat" <arkolbed@gmail.com>
Date: Thu, 3 Aug 2017 22:34:12 -0500
Subject: [PATCH] UI: Properly size microprofile, make dpi transparent to
 unaware users.

---
 src/xenia/base/profiling.cc         |  2 +-
 src/xenia/ui/microprofile_drawer.cc |  4 ++--
 src/xenia/ui/window.cc              |  4 ++--
 src/xenia/ui/window.h               |  3 +++
 src/xenia/ui/window_win.cc          | 16 ++++++++++++----
 5 files changed, 20 insertions(+), 9 deletions(-)

diff --git a/src/xenia/base/profiling.cc b/src/xenia/base/profiling.cc
index c1d474b01..69d4e090e 100644
--- a/src/xenia/base/profiling.cc
+++ b/src/xenia/base/profiling.cc
@@ -241,7 +241,7 @@ void Profiler::Present() {
     return;
   }
   drawer_->Begin();
-  MicroProfileDraw(window_->width(), window_->height());
+  MicroProfileDraw(window_->scaled_width(), window_->scaled_height());
   drawer_->End();
 #endif  // XE_OPTION_PROFILING_UI
 }
diff --git a/src/xenia/ui/microprofile_drawer.cc b/src/xenia/ui/microprofile_drawer.cc
index e4006d0f5..c73d0a18d 100644
--- a/src/xenia/ui/microprofile_drawer.cc
+++ b/src/xenia/ui/microprofile_drawer.cc
@@ -178,8 +178,8 @@ void MicroprofileDrawer::SetupFont() {
 MicroprofileDrawer::~MicroprofileDrawer() = default;
 
 void MicroprofileDrawer::Begin() {
-  graphics_context_->immediate_drawer()->Begin(window_->width(),
-                                               window_->height());
+  graphics_context_->immediate_drawer()->Begin(window_->scaled_width(),
+                                               window_->scaled_height());
 }
 
 void MicroprofileDrawer::End() {
diff --git a/src/xenia/ui/window.cc b/src/xenia/ui/window.cc
index 2abe73115..2edff242a 100644
--- a/src/xenia/ui/window.cc
+++ b/src/xenia/ui/window.cc
@@ -193,8 +193,8 @@ void Window::OnPaint(UIEvent* e) {
     io.DeltaTime = (now_ns - last_paint_time_ns_) / 10000000.0f;
     last_paint_time_ns_ = now_ns;
   }
-  io.DisplaySize =
-      ImVec2(static_cast<float>(width()), static_cast<float>(height()));
+  io.DisplaySize = ImVec2(static_cast<float>(scaled_width()),
+                          static_cast<float>(scaled_height()));
   ImGui::NewFrame();
 
   context_->BeginSwap();
diff --git a/src/xenia/ui/window.h b/src/xenia/ui/window.h
index a9021538d..07831fe96 100644
--- a/src/xenia/ui/window.h
+++ b/src/xenia/ui/window.h
@@ -76,6 +76,9 @@ class Window {
 
   int32_t width() const { return width_; }
   int32_t height() const { return height_; }
+  int32_t scaled_width() const { return int32_t(width_ * get_dpi_scale()); }
+  int32_t scaled_height() const { return int32_t(height_ * get_dpi_scale()); }
+
   virtual void Resize(int32_t width, int32_t height) {
     width_ = width;
     height_ = height;
diff --git a/src/xenia/ui/window_win.cc b/src/xenia/ui/window_win.cc
index 2c9bfe54c..a0aade0b0 100644
--- a/src/xenia/ui/window_win.cc
+++ b/src/xenia/ui/window_win.cc
@@ -325,8 +325,9 @@ void Win32Window::Resize(int32_t width, int32_t height) {
 
   // Scale width and height
   int32_t scaled_width, scaled_height;
-  scaled_width = int32_t(width * get_dpi_scale());
-  scaled_height = int32_t(height * get_dpi_scale());
+  float dpi_scale = get_dpi_scale();
+  scaled_width = int32_t(width * dpi_scale);
+  scaled_height = int32_t(height * dpi_scale);
 
   RECT rc = {0, 0, 0, 0};
   GetWindowRect(hwnd_, &rc);
@@ -358,8 +359,9 @@ void Win32Window::Resize(int32_t left, int32_t top, int32_t right,
   RECT rc = {left, top, right, bottom};
 
   // Scale width and height
-  rc.right = int32_t((right - left) * get_dpi_scale()) + left;
-  rc.bottom = int32_t((bottom - top) * get_dpi_scale()) + top;
+  float dpi_scale = get_dpi_scale();
+  rc.right = int32_t((right - left) * dpi_scale) + left;
+  rc.bottom = int32_t((bottom - top) * dpi_scale) + top;
 
   bool has_menu = !is_fullscreen() && (main_menu_ ? true : false);
   AdjustWindowRect(&rc, GetWindowLong(hwnd_, GWL_STYLE), has_menu);
@@ -379,6 +381,12 @@ void Win32Window::OnResize(UIEvent* e) {
   GetClientRect(hwnd_, &client_rect);
   int32_t width = client_rect.right - client_rect.left;
   int32_t height = client_rect.bottom - client_rect.top;
+
+  // Rescale to base DPI.
+  float dpi_scale = get_dpi_scale();
+  width = int32_t(width / dpi_scale);
+  height = int32_t(height / dpi_scale);
+
   if (width != width_ || height != height_) {
     width_ = width;
     height_ = height;