kc3-lang/angle/src/common/platform.h

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• Hash : e53efb18
  Author :
  Date : 2020-11-03T16:22:19
  

  Allow choosing EAGL or CGL at runtime
  
  Dean Jackson made this change downstream in WebKit:
  https://bugs.webkit.org/show_bug.cgi?id=216722
  
  Change ANGLE to dynamically load either EAGL (OpenGLES) or CGL (OpenGL)
  depending on both compile and runtime configurations.
      Intel Mac -> CGL
      Intel Mac Catalyst -> CGL
      Intel iOS Simulator -> EAGL
      iOS Device -> EAGL
      Apple Silicon Mac -> CGL
      Apple Silicon Mac Catalyst (with Mac app) -> CGL
      Apple Silicon Mac Catalyst (with iOS app) -> EAGL
  
  The trickiest bit is Apple Silicon Mac Catalyst, which depends on the
  type of the application it is attempting to run. In that case ANGLE must
  compile both the CGL and EAGL interfaces and then pick one to use after
  launch.
  
  Bug: angleproject:5253
  Change-Id: Iba167b3cc3105e457dcfc9bc14147d0fc3e70bac
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2500185
  Commit-Queue: James Darpinian <jdarpinian@chromium.org>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Reviewed-by: Kenneth Russell <kbr@chromium.org>
  

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• src/common/platform.h

• //
  // Copyright 2014 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  // platform.h: Operating system specific includes and defines.
  
  #ifndef COMMON_PLATFORM_H_
  #define COMMON_PLATFORM_H_
  
  #if defined(_WIN32)
  #    define ANGLE_PLATFORM_WINDOWS 1
  #elif defined(__Fuchsia__)
  #    define ANGLE_PLATFORM_FUCHSIA 1
  #    define ANGLE_PLATFORM_POSIX 1
  #elif defined(__APPLE__)
  #    define ANGLE_PLATFORM_APPLE 1
  #    define ANGLE_PLATFORM_POSIX 1
  #elif defined(ANDROID)
  #    define ANGLE_PLATFORM_ANDROID 1
  #    define ANGLE_PLATFORM_POSIX 1
  #elif defined(__ggp__)
  #    define ANGLE_PLATFORM_GGP 1
  #    define ANGLE_PLATFORM_POSIX 1
  #elif defined(__linux__) || defined(EMSCRIPTEN)
  #    define ANGLE_PLATFORM_LINUX 1
  #    define ANGLE_PLATFORM_POSIX 1
  #elif defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__) ||              \
      defined(__DragonFly__) || defined(__sun) || defined(__GLIBC__) || defined(__GNU__) || \
      defined(__QNX__) || defined(__Fuchsia__) || defined(__HAIKU__)
  #    define ANGLE_PLATFORM_POSIX 1
  #else
  #    error Unsupported platform.
  #endif
  
  #ifdef ANGLE_PLATFORM_WINDOWS
  #    ifndef STRICT
  #        define STRICT 1
  #    endif
  #    ifndef WIN32_LEAN_AND_MEAN
  #        define WIN32_LEAN_AND_MEAN 1
  #    endif
  #    ifndef NOMINMAX
  #        define NOMINMAX 1
  #    endif
  
  #    include <intrin.h>
  #    include <windows.h>
  
  #    if defined(WINAPI_FAMILY) && (WINAPI_FAMILY != WINAPI_FAMILY_DESKTOP_APP)
  #        define ANGLE_ENABLE_WINDOWS_UWP 1
  #    endif
  
  #    if defined(ANGLE_ENABLE_D3D9)
  #        include <d3d9.h>
  #        include <d3dcompiler.h>
  #    endif
  
  // Include D3D11 headers when OpenGL is enabled on Windows for interop extensions.
  #    if defined(ANGLE_ENABLE_D3D11) || defined(ANGLE_ENABLE_OPENGL)
  #        include <d3d10_1.h>
  #        include <d3d11.h>
  #        include <d3d11_3.h>
  #        include <d3d11on12.h>
  #        include <d3d12.h>
  #        include <d3dcompiler.h>
  #        include <dxgi.h>
  #        include <dxgi1_2.h>
  #        include <dxgi1_4.h>
  #    endif
  
  #    if defined(ANGLE_ENABLE_D3D9) || defined(ANGLE_ENABLE_D3D11)
  #        include <wrl.h>
  #    endif
  
  #    if defined(ANGLE_ENABLE_WINDOWS_UWP)
  #        include <dxgi1_3.h>
  #        if defined(_DEBUG)
  #            include <DXProgrammableCapture.h>
  #            include <dxgidebug.h>
  #        endif
  #    endif
  
  #    undef near
  #    undef far
  #endif
  
  #if defined(_MSC_VER) && !defined(_M_ARM) && !defined(_M_ARM64)
  #    include <intrin.h>
  #    define ANGLE_USE_SSE
  #elif defined(__GNUC__) && (defined(__x86_64__) || defined(__i386__))
  #    include <x86intrin.h>
  #    define ANGLE_USE_SSE
  #endif
  
  // Mips and arm devices need to include stddef for size_t.
  #if defined(__mips__) || defined(__arm__) || defined(__aarch64__)
  #    include <stddef.h>
  #endif
  
  // The MemoryBarrier function name collides with a macro under Windows
  // We will undef the macro so that the function name does not get replaced
  #undef MemoryBarrier
  
  // Macro for hinting that an expression is likely to be true/false.
  #if !defined(ANGLE_LIKELY) || !defined(ANGLE_UNLIKELY)
  #    if defined(__GNUC__) || defined(__clang__)
  #        define ANGLE_LIKELY(x) __builtin_expect(!!(x), 1)
  #        define ANGLE_UNLIKELY(x) __builtin_expect(!!(x), 0)
  #    else
  #        define ANGLE_LIKELY(x) (x)
  #        define ANGLE_UNLIKELY(x) (x)
  #    endif  // defined(__GNUC__) || defined(__clang__)
  #endif      // !defined(ANGLE_LIKELY) || !defined(ANGLE_UNLIKELY)
  
  #ifdef ANGLE_PLATFORM_APPLE
  #    include <TargetConditionals.h>
  #    if TARGET_OS_OSX
  #        define ANGLE_PLATFORM_MACOS 1
  #    elif TARGET_OS_IPHONE
  #        define ANGLE_PLATFORM_IOS 1
  #        if TARGET_OS_SIMULATOR
  #            define ANGLE_PLATFORM_IOS_SIMULATOR 1
  #        endif
  #        if TARGET_OS_MACCATALYST
  #            define ANGLE_PLATFORM_MACCATALYST 1
  #        endif
  #    endif
  #    // This might be useful globally. At the moment it is used
  #    // to differentiate MacCatalyst on Intel and Apple Silicon.
  #    if defined(__arm64__) || defined(__aarch64__)
  #        define ANGLE_CPU_ARM64 1
  #    endif
  // EAGL should be enabled on iOS, but not Mac Catalyst unless it is running on Apple Silicon.
  #    if (defined(ANGLE_PLATFORM_IOS) && !defined(ANGLE_PLATFORM_MACCATALYST)) || \
          (defined(ANGLE_PLATFORM_MACCATALYST) && defined(ANGLE_CPU_ARM64))
  #        define ANGLE_ENABLE_EAGL
  #    endif
  #endif
  
  // Define ANGLE_WITH_ASAN macro.
  #if defined(__has_feature)
  #    if __has_feature(address_sanitizer)
  #        define ANGLE_WITH_ASAN 1
  #    endif
  #endif
  
  #endif  // COMMON_PLATFORM_H_
  

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