vcpkg: add overlay ports for angle, openssl, and pthread-stubs

These ports are required by the Linux build:
- angle: GLES/EGL implementation (used by ImGui and the render system)
- openssl: required by lcurl for HTTPS support
- pthread-stubs: satisfies EGL's pthread dependency on Linux

Author: velomeister

vcpkg-configuration.json

@@ -8,7 +8,7 @@
       "kind": "filesystem",
       "path": "vcpkg-ports",
       "baseline": "2025-10-07",
-      "packages": ["glfw3", "gli", "luajit"]
+      "packages": ["angle", "glfw3", "gli", "luajit", "openssl", "pthread-stubs"]
     }
   ]
 }

vcpkg-ports/ports/angle/001-fix-uwp.patch

@@ -0,0 +1,30 @@
+diff --git a/src/libANGLE/renderer/d3d/d3d11/winrt/CoreWindowNativeWindow.cpp b/src/libANGLE/renderer/d3d/d3d11/winrt/CoreWindowNativeWindow.cpp
+index 7d3f078d6..fac057dd6 100644
+--- a/src/libANGLE/renderer/d3d/d3d11/winrt/CoreWindowNativeWindow.cpp
++++ b/src/libANGLE/renderer/d3d/d3d11/winrt/CoreWindowNativeWindow.cpp
+@@ -213,16 +213,20 @@ HRESULT GetCoreWindowSizeInPixels(const ComPtr<ABI::Windows::UI::Core::ICoreWind
+ 
+ static float GetLogicalDpi()
+ {
+-    ComPtr<ABI::Windows::Graphics::Display::IDisplayPropertiesStatics> displayProperties;
++    ComPtr<ABI::Windows::Graphics::Display::IDisplayInformationStatics> displayInformationStatics;
++    ComPtr<ABI::Windows::Graphics::Display::IDisplayInformation> displayInformation;
+ 
+     if (SUCCEEDED(GetActivationFactory(
+-            HStringReference(RuntimeClass_Windows_Graphics_Display_DisplayProperties).Get(),
+-            displayProperties.GetAddressOf())))
++            HStringReference(RuntimeClass_Windows_Graphics_Display_DisplayInformation).Get(),
++            displayInformationStatics.GetAddressOf())))
+     {
+         float dpi = 96.0f;
+-        if (SUCCEEDED(displayProperties->get_LogicalDpi(&dpi)))
++        if (SUCCEEDED(displayInformationStatics->GetForCurrentView(&displayInformation)))
+         {
+-            return dpi;
++            if (SUCCEEDED(displayInformation->get_LogicalDpi(&dpi)))
++            {
++                return dpi;
++            }
+         }
+     }
+ 

vcpkg-ports/ports/angle/002-fix-builder-error.patch

@@ -0,0 +1,40 @@
+diff --git a/src/gpu_info_util/SystemInfo_win.cpp b/src/gpu_info_util/SystemInfo_win.cpp
+index f4bb137f2..86495013b 100644
+--- a/src/gpu_info_util/SystemInfo_win.cpp
++++ b/src/gpu_info_util/SystemInfo_win.cpp
+@@ -6,11 +6,6 @@
+ 
+ // SystemInfo_win.cpp: implementation of the Windows-specific parts of SystemInfo.h
+ 
+-#include "gpu_info_util/SystemInfo_internal.h"
+-
+-#include "common/debug.h"
+-#include "common/string_utils.h"
+-
+ // Windows.h needs to be included first
+ #include <windows.h>
+ 
+@@ -19,6 +14,11 @@
+ #include <array>
+ #include <sstream>
+ 
++#include "gpu_info_util/SystemInfo_internal.h"
++
++#include "common/debug.h"
++#include "common/string_utils.h"
++
+ namespace angle
+ {
+ 
+diff --git a/include/GLSLANG/ShaderVars.h b/include/GLSLANG/ShaderVars.h
+index 94cb93e..5593f66 100644
+--- a/include/GLSLANG/ShaderVars.h
++++ b/include/GLSLANG/ShaderVars.h
+@@ -14,6 +14,7 @@
+ #include <array>
+ #include <string>
+ #include <vector>
++#include <stdint.h>
+ 
+ namespace sh
+ {

vcpkg-ports/ports/angle/003-fix-mingw.patch

@@ -0,0 +1,22 @@
+diff --git a/src/common/mathutil.h b/src/common/mathutil.h
+index 1d73bbf..c5b9cc8 100644
+--- a/src/common/mathutil.h
++++ b/src/common/mathutil.h
+@@ -1073,7 +1073,7 @@ inline int BitCount(uint64_t bits)
+ #    endif  // defined(_M_IX86) || defined(_M_X64)
+ #endif      // defined(_MSC_VER) && !defined(__clang__)
+ 
+-#if defined(ANGLE_PLATFORM_POSIX) || defined(__clang__)
++#if defined(ANGLE_PLATFORM_POSIX) || defined(__clang__) || defined(__MINGW32__)
+ inline int BitCount(uint32_t bits)
+ {
+     return __builtin_popcount(bits);
+@@ -1083,7 +1083,7 @@ inline int BitCount(uint64_t bits)
+ {
+     return __builtin_popcountll(bits);
+ }
+-#endif  // defined(ANGLE_PLATFORM_POSIX) || defined(__clang__)
++#endif  // defined(ANGLE_PLATFORM_POSIX) || defined(__clang__) || defined(__MINGW32__)
+ 
+ inline int BitCount(uint8_t bits)
+ {

vcpkg-ports/ports/angle/004-fix-cstdint.patch

@@ -0,0 +1,10 @@
+--- a/src/image_util/AstcDecompressor.h
++++ b/src/image_util/AstcDecompressor.h
+@@ -13,6 +13,7 @@
+
+ #include <memory>
+ #include <string>
++#include <cstdint>
+
+ namespace angle
+ {

vcpkg-ports/ports/angle/angle_commit.h.in

@@ -0,0 +1,4 @@
+#cmakedefine ANGLE_COMMIT_HASH "@ANGLE_COMMIT_HASH@"
+#cmakedefine ANGLE_COMMIT_HASH_SIZE @ANGLE_COMMIT_HASH_SIZE@
+#cmakedefine ANGLE_COMMIT_DATE "@ANGLE_COMMIT_DATE@"
+#cmakedefine ANGLE_REVISION @ANGLE_REVISION@