Add OpenGLWindowsDevOnly graphics API for Windows

Apps/Playground/CMakeLists.txt

@@ -148,6 +148,14 @@ target_link_libraries(Playground
 add_custom_command(TARGET Playground POST_BUILD
     COMMAND ${CMAKE_COMMAND} -E $<IF:$<BOOL:$<TARGET_RUNTIME_DLLS:Playground>>,copy,true> $<TARGET_RUNTIME_DLLS:Playground> $<TARGET_FILE_DIR:Playground> COMMAND_EXPAND_LISTS)
 
+if(ANGLE_LIBEGL)
+    add_custom_command(TARGET Playground POST_BUILD
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different "${ANGLE_LIBEGL}" "$<TARGET_FILE_DIR:Playground>"
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different "${ANGLE_LIBGLESV2}" "$<TARGET_FILE_DIR:Playground>"
+        COMMENT "Copying ANGLE libraries to Playground output directory"
+    )
+endif()
+
 if (UNIX AND NOT APPLE AND NOT ANDROID)
     # Ubuntu mixes old experimental header and new runtime libraries
     # Resulting in crash at runtime for std::filesystem

Apps/UnitTests/CMakeLists.txt

@@ -72,6 +72,14 @@ add_test(NAME UnitTests COMMAND UnitTests)
 add_custom_command(TARGET UnitTests POST_BUILD
     COMMAND ${CMAKE_COMMAND} -E $<IF:$<BOOL:$<TARGET_RUNTIME_DLLS:UnitTests>>,copy,true> $<TARGET_RUNTIME_DLLS:UnitTests> $<TARGET_FILE_DIR:UnitTests> COMMAND_EXPAND_LISTS)
 
+if(ANGLE_LIBEGL)
+    add_custom_command(TARGET UnitTests POST_BUILD
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different "${ANGLE_LIBEGL}" "$<TARGET_FILE_DIR:UnitTests>"
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different "${ANGLE_LIBGLESV2}" "$<TARGET_FILE_DIR:UnitTests>"
+        COMMENT "Copying ANGLE libraries to UnitTests output directory"
+    )
+endif()
+
 foreach(ASSET ${BABYLONJS_ASSETS} ${BABYLONJS_MATERIALS_ASSETS} ${TEST_ASSETS})
     get_filename_component(ASSET_NAME "${ASSET}" NAME)
     add_custom_command(

CMakeLists.txt

@@ -35,11 +35,11 @@ FetchContent_Declare(base-n
     EXCLUDE_FROM_ALL)
 FetchContent_Declare(bgfx.cmake
     GIT_REPOSITORY https://github.com/BabylonJS/bgfx.cmake.git
-    GIT_TAG ccbe08cbef9e370d0b7a2a4023d424247a727624
+    GIT_TAG 7499c2fe6b7f403381f397c04325450312f74c2e
     EXCLUDE_FROM_ALL)
 FetchContent_Declare(CMakeExtensions
     GIT_REPOSITORY https://github.com/BabylonJS/CMakeExtensions.git
-    GIT_TAG 631780e42886e5f12bfd1a5568c7395f1d657f43 
+    GIT_TAG 631780e42886e5f12bfd1a5568c7395f1d657f43
     EXCLUDE_FROM_ALL)
 FetchContent_Declare(glslang
     GIT_REPOSITORY https://github.com/BabylonJS/glslang.git
@@ -202,13 +202,61 @@ elseif(UNIX)
 elseif(WIN32)
     if(NOT GRAPHICS_API)
         set(GRAPHICS_API D3D11)
+    elseif(GRAPHICS_API STREQUAL "OpenGLWindowsDevOnly")
+        # OpenGLES via ANGLE from a Chromium-based browser (dev-only).
+        set(GRAPHICS_API OpenGL)
+        set(BABYLON_NATIVE_OPENGLES_FROM_BROWSER ON)
     else()
         if(NOT GRAPHICS_API STREQUAL Vulkan AND NOT GRAPHICS_API STREQUAL D3D11 AND NOT GRAPHICS_API STREQUAL D3D12)
             message(FATAL_ERROR "Unrecognized/Unsupported render API: ${GRAPHICS_API}")
         endif()
     endif()
 endif()
 
+# Find ANGLE libraries from Edge or Chrome when using OpenGLWindowsDevOnly.
+if(BABYLON_NATIVE_OPENGLES_FROM_BROWSER)
+    foreach(_browser_exe "msedge.exe" "chrome.exe")
+        if(ANGLE_LIBEGL)
+            break()
+        endif()
+        foreach(_reg_root "HKLM" "HKCU")
+            if(ANGLE_LIBEGL)
+                break()
+            endif()
+            execute_process(
+                COMMAND reg query "${_reg_root}\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\App Paths\\${_browser_exe}" /ve
+                OUTPUT_VARIABLE _reg_output
+                ERROR_QUIET
+                RESULT_VARIABLE _reg_result
+                OUTPUT_STRIP_TRAILING_WHITESPACE
+            )
+            if(NOT _reg_result EQUAL 0)
+                continue()
+            endif()
+            string(REGEX MATCH "REG_SZ[ \t]+([^\r\n]+)" _ "${_reg_output}")
+            string(STRIP "${CMAKE_MATCH_1}" _browser_path)
+            if(NOT _browser_path)
+                continue()
+            endif()
+            cmake_path(GET _browser_path PARENT_PATH _browser_dir)
+            file(GLOB _version_dirs LIST_DIRECTORIES true "${_browser_dir}/[0-9]*")
+            list(SORT _version_dirs ORDER DESCENDING)
+            foreach(_version_dir ${_version_dirs})
+                if(IS_DIRECTORY "${_version_dir}" AND EXISTS "${_version_dir}/libEGL.dll")
+                    set(ANGLE_LIBEGL "${_version_dir}/libEGL.dll")
+                    set(ANGLE_LIBGLESV2 "${_version_dir}/libGLESv2.dll")
+                    message(STATUS "Found ANGLE libraries in: ${_version_dir}")
+                    break()
+                endif()
+            endforeach()
+        endforeach()
+    endforeach()
+
+    if(NOT ANGLE_LIBEGL)
+        message(FATAL_ERROR "OpenGLWindowsDevOnly requires ANGLE libraries (libEGL.dll, libGLESv2.dll) from Edge or Chrome, but none were found.")
+    endif()
+endif()
+
 if(APPLE)
     set(BABYLON_NATIVE_PLATFORM_IMPL_EXT "mm")
 else()

Core/Graphics/Include/RendererType/OpenGL/Babylon/Graphics/RendererType.h

@@ -1,10 +1,8 @@
 #pragma once
 
-#include <EGL/egl.h>
-
 namespace Babylon::Graphics
 {
-    using DeviceT = EGLContext;
+    using DeviceT = void*;
     using TextureT = unsigned int;
     using TextureFormatT = unsigned int;