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From 59c6d4c94acb4735a73f50f46f91a6cce7389f94 Mon Sep 17 00:00:00 2001
From: Andrew Knight <andrew.knight@digia.com>
Date: Wed, 21 May 2014 00:58:21 +0300
Subject: [PATCH] ANGLE WinRT: Create swap chain using physical resolution
ANGLE has been creating the framebuffer in logical pixels instead of
physical pixels, which leads to unexpected results and side effects like
smudged anti-aliased text. This fixes the issue by multiplying the DIP
resolution by the scale factor, making the framebuffer match the physical
pixel resolution of the screen.
Change-Id: I3594995ce8e18a31b47e27165f72bc6a391b97b6
---
src/3rdparty/angle/src/libEGL/Surface.cpp | 97 ++++++++++++++++++++++++++-----
1 file changed, 83 insertions(+), 14 deletions(-)
diff --git a/src/3rdparty/angle/src/libEGL/Surface.cpp b/src/3rdparty/angle/src/libEGL/Surface.cpp
index 3443355..a2e2306 100644
--- a/src/3rdparty/angle/src/libEGL/Surface.cpp
+++ b/src/3rdparty/angle/src/libEGL/Surface.cpp
@@ -24,8 +24,83 @@
#include "libEGL/Display.h"
#if defined(ANGLE_OS_WINRT)
+#include <wrl.h>
#include <windows.foundation.h>
#include <windows.ui.core.h>
+#include <windows.graphics.display.h>
+
+static bool getCoreWindowSize(const EGLNativeWindowType win, int *width, int *height)
+{
+ Microsoft::WRL::ComPtr<ABI::Windows::UI::Core::ICoreWindow> window;
+ HRESULT hr = win->QueryInterface(IID_PPV_ARGS(&window));
+ if (FAILED(hr))
+ {
+ ERR("Failed to cast native display pointer to ICoreWindow *.");
+ return false;
+ }
+
+#if _MSC_VER<=1700
+ Microsoft::WRL::ComPtr<ABI::Windows::Graphics::Display::IDisplayPropertiesStatics> displayInformation;
+ hr = RoGetActivationFactory(Microsoft::WRL::Wrappers::HString::MakeReference(RuntimeClass_Windows_Graphics_Display_DisplayProperties).Get(),
+ IID_PPV_ARGS(&displayInformation));
+#else
+ Microsoft::WRL::ComPtr<ABI::Windows::Graphics::Display::IDisplayInformationStatics> displayInformationFactory;
+ hr = RoGetActivationFactory(Microsoft::WRL::Wrappers::HString::MakeReference(RuntimeClass_Windows_Graphics_Display_DisplayInformation).Get(),
+ IID_PPV_ARGS(&displayInformationFactory));
+ if (FAILED(hr))
+ {
+ ERR("Failed to get display information factory.");
+ return false;
+ }
+
+ Microsoft::WRL::ComPtr<ABI::Windows::Graphics::Display::IDisplayInformation> displayInformation;
+ hr = displayInformationFactory->GetForCurrentView(&displayInformation);
+#endif
+ if (FAILED(hr))
+ {
+ ERR("Failed to get display information.");
+ return false;
+ }
+
+#if defined(ANGLE_OS_WINPHONE) && _MSC_VER>=1800 // Windows Phone 8.1
+ Microsoft::WRL::ComPtr<ABI::Windows::Graphics::Display::IDisplayInformation2> displayInformation2;
+ hr = displayInformation.As(&displayInformation2);
+ if (FAILED(hr))
+ {
+ ERR("Failed to get extended display information.");
+ return false;
+ }
+
+ DOUBLE scaleFactor;
+ hr = displayInformation2->get_RawPixelsPerViewPixel(&scaleFactor);
+ if (FAILED(hr))
+ {
+ ERR("Failed to get raw pixels per view pixel.");
+ return false;
+ }
+#else
+ ABI::Windows::Graphics::Display::ResolutionScale resolutionScale;
+ hr = displayInformation->get_ResolutionScale(&resolutionScale);
+ if (FAILED(hr))
+ {
+ ERR("Failed to get resolution scale.");
+ return false;
+ }
+ DOUBLE scaleFactor = DOUBLE(resolutionScale) / 100.0;
+#endif
+
+ ABI::Windows::Foundation::Rect windowRect;
+ hr = window->get_Bounds(&windowRect);
+ if (FAILED(hr))
+ {
+ ERR("Failed to get ICoreWindow bounds.");
+ return false;
+ }
+
+ *width = std::floor(windowRect.Width * scaleFactor + 0.5);
+ *height = std::floor(windowRect.Height * scaleFactor + 0.5);
+ return true;
+}
#endif
namespace egl
@@ -117,14 +192,10 @@ bool Surface::resetSwapChain()
width = windowRect.right - windowRect.left;
height = windowRect.bottom - windowRect.top;
#else
- ABI::Windows::Foundation::Rect windowRect;
- ABI::Windows::UI::Core::ICoreWindow *window;
- HRESULT hr = mWindow->QueryInterface(IID_PPV_ARGS(&window));
- if (FAILED(hr))
+ if (!getCoreWindowSize(mWindow, &width, &height))
+ {
return false;
- window->get_Bounds(&windowRect);
- width = windowRect.Width;
- height = windowRect.Height;
+ }
#endif
}
else
@@ -336,14 +407,12 @@ bool Surface::checkForOutOfDateSwapChain()
int clientWidth = client.right - client.left;
int clientHeight = client.bottom - client.top;
#else
- ABI::Windows::Foundation::Rect windowRect;
- ABI::Windows::UI::Core::ICoreWindow *window;
- HRESULT hr = mWindow->QueryInterface(IID_PPV_ARGS(&window));
- if (FAILED(hr))
+ int clientWidth;
+ int clientHeight;
+ if (!getCoreWindowSize(mWindow, &clientWidth, &clientHeight))
+ {
return false;
- window->get_Bounds(&windowRect);
- int clientWidth = windowRect.Width;
- int clientHeight = windowRect.Height;
+ }
#endif
bool sizeDirty = clientWidth != getWidth() || clientHeight != getHeight();
--
1.9.0.msysgit.0
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