1 files changed, 324 insertions, 0 deletions
diff --git a/gfx/angle/checkout/src/libANGLE/renderer/driver_utils.cpp b/gfx/angle/checkout/src/libANGLE/renderer/driver_utils.cpp
new file mode 100644
index 0000000000..20f019a513
--- /dev/null
+++ b/gfx/angle/checkout/src/libANGLE/renderer/driver_utils.cpp
@@ -0,0 +1,324 @@
+//
+// Copyright 2016 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.
+//
+
+// driver_utils.h : provides more information about current driver.
+
+#include <algorithm>
+
+#include "libANGLE/renderer/driver_utils.h"
+
+#include "common/platform.h"
+#include "common/system_utils.h"
+
+#if defined(ANGLE_PLATFORM_ANDROID)
+#    include <sys/system_properties.h>
+#endif
+
+#if defined(ANGLE_PLATFORM_LINUX)
+#    include <sys/utsname.h>
+#endif
+
+#if defined(ANGLE_PLATFORM_WINDOWS)
+#    include <versionhelpers.h>
+#endif
+
+namespace rx
+{
+// Intel
+// Referenced from https://cgit.freedesktop.org/vaapi/intel-driver/tree/src/i965_pciids.h
+namespace
+{
+// gen6
+const uint32_t SandyBridge[] = {0x0102, 0x0106, 0x010A, 0x0112, 0x0122, 0x0116, 0x0126};
+
+// gen7
+const uint32_t IvyBridge[] = {0x0152, 0x0156, 0x015A, 0x0162, 0x0166, 0x016A};
+
+const uint32_t Haswell[] = {
+    0x0402, 0x0406, 0x040A, 0x040B, 0x040E, 0x0C02, 0x0C06, 0x0C0A, 0x0C0B, 0x0C0E,
+    0x0A02, 0x0A06, 0x0A0A, 0x0A0B, 0x0A0E, 0x0D02, 0x0D06, 0x0D0A, 0x0D0B, 0x0D0E,  // hsw_gt1
+    0x0412, 0x0416, 0x041A, 0x041B, 0x041E, 0x0C12, 0x0C16, 0x0C1A, 0x0C1B, 0x0C1E,
+    0x0A12, 0x0A16, 0x0A1A, 0x0A1B, 0x0A1E, 0x0D12, 0x0D16, 0x0D1A, 0x0D1B, 0x0D1E,  // hsw_gt2
+    0x0422, 0x0426, 0x042A, 0x042B, 0x042E, 0x0C22, 0x0C26, 0x0C2A, 0x0C2B, 0x0C2E,
+    0x0A22, 0x0A26, 0x0A2A, 0x0A2B, 0x0A2E, 0x0D22, 0x0D26, 0x0D2A, 0x0D2B, 0x0D2E  // hsw_gt3
+};
+
+// gen8
+const uint32_t Broadwell[] = {0x1602, 0x1606, 0x160A, 0x160B, 0x160D, 0x160E,
+                              0x1612, 0x1616, 0x161A, 0x161B, 0x161D, 0x161E,
+                              0x1622, 0x1626, 0x162A, 0x162B, 0x162D, 0x162E};
+
+const uint32_t CherryView[] = {0x22B0, 0x22B1, 0x22B2, 0x22B3};
+
+// gen9
+const uint32_t Skylake[] = {0x1902, 0x1906, 0x190A, 0x190B, 0x190E, 0x1912, 0x1913, 0x1915, 0x1916,
+                            0x1917, 0x191A, 0x191B, 0x191D, 0x191E, 0x1921, 0x1923, 0x1926, 0x1927,
+                            0x192A, 0x192B, 0x192D, 0x1932, 0x193A, 0x193B, 0x193D};
+
+const uint32_t Broxton[] = {0x0A84, 0x1A84, 0x1A85, 0x5A84, 0x5A85};
+
+// gen9p5
+const uint32_t Kabylake[] = {0x5916, 0x5913, 0x5906, 0x5926, 0x5921, 0x5915, 0x590E,
+                             0x591E, 0x5912, 0x5917, 0x5902, 0x591B, 0x593B, 0x590B,
+                             0x591A, 0x590A, 0x591D, 0x5908, 0x5923, 0x5927};
+
+}  // anonymous namespace
+
+IntelDriverVersion::IntelDriverVersion(uint16_t lastPart) : mVersionPart(lastPart) {}
+
+bool IntelDriverVersion::operator==(const IntelDriverVersion &version)
+{
+    return mVersionPart == version.mVersionPart;
+}
+
+bool IntelDriverVersion::operator!=(const IntelDriverVersion &version)
+{
+    return !(*this == version);
+}
+
+bool IntelDriverVersion::operator<(const IntelDriverVersion &version)
+{
+    // See http://www.intel.com/content/www/us/en/support/graphics-drivers/000005654.html to
+    // understand the Intel graphics driver version number on Windows.
+    // mVersionPart1 changes with OS version. mVersionPart2 changes with DirectX version.
+    // mVersionPart3 stands for release year. mVersionPart4 is driver specific unique version
+    // number.
+    // For example: Intel driver version '20.19.15.4539'
+    //              20   -> windows 10 driver
+    //              19   -> DirectX 12 first version(12.0) supported
+    //              15   -> Driver released in 2015
+    //              4539 -> Driver specific unique version number
+    // For linux, Intel graphics driver version is the mesa version. The version number has three
+    // parts: major revision, minor revision, release number. So, for linux, we need to compare
+    // three parts.
+    // Currently, it's only used in windows. So, checking the last part is enough. Once it's needed
+    // in other platforms, it's easy to be extended.
+    return mVersionPart < version.mVersionPart;
+}
+
+bool IntelDriverVersion::operator>=(const IntelDriverVersion &version)
+{
+    return !(*this < version);
+}
+
+bool IsSandyBridge(uint32_t DeviceId)
+{
+    return std::find(std::begin(SandyBridge), std::end(SandyBridge), DeviceId) !=
+           std::end(SandyBridge);
+}
+
+bool IsIvyBridge(uint32_t DeviceId)
+{
+    return std::find(std::begin(IvyBridge), std::end(IvyBridge), DeviceId) != std::end(IvyBridge);
+}
+
+bool IsHaswell(uint32_t DeviceId)
+{
+    return std::find(std::begin(Haswell), std::end(Haswell), DeviceId) != std::end(Haswell);
+}
+
+bool IsBroadwell(uint32_t DeviceId)
+{
+    return std::find(std::begin(Broadwell), std::end(Broadwell), DeviceId) != std::end(Broadwell);
+}
+
+bool IsCherryView(uint32_t DeviceId)
+{
+    return std::find(std::begin(CherryView), std::end(CherryView), DeviceId) !=
+           std::end(CherryView);
+}
+
+bool IsSkylake(uint32_t DeviceId)
+{
+    return std::find(std::begin(Skylake), std::end(Skylake), DeviceId) != std::end(Skylake);
+}
+
+bool IsBroxton(uint32_t DeviceId)
+{
+    return std::find(std::begin(Broxton), std::end(Broxton), DeviceId) != std::end(Broxton);
+}
+
+bool IsKabylake(uint32_t DeviceId)
+{
+    return std::find(std::begin(Kabylake), std::end(Kabylake), DeviceId) != std::end(Kabylake);
+}
+
+bool Is9thGenIntel(uint32_t DeviceId)
+{
+    return IsSkylake(DeviceId) || IsBroxton(DeviceId) || IsKabylake(DeviceId);
+}
+
+const char *GetVendorString(uint32_t vendorId)
+{
+    switch (vendorId)
+    {
+        case VENDOR_ID_AMD:
+            return "AMD";
+        case VENDOR_ID_ARM:
+            return "ARM";
+        case VENDOR_ID_APPLE:
+            return "Apple";
+        case VENDOR_ID_BROADCOM:
+            return "Broadcom";
+        case VENDOR_ID_GOOGLE:
+            return "Google";
+        case VENDOR_ID_INTEL:
+            return "Intel";
+        case VENDOR_ID_MESA:
+            return "Mesa";
+        case VENDOR_ID_NVIDIA:
+            return "NVIDIA";
+        case VENDOR_ID_POWERVR:
+            return "Imagination Technologies";
+        case VENDOR_ID_QUALCOMM:
+            return "Qualcomm";
+        case 0xba5eba11:  // Mock vendor ID used for tests.
+            return "Test";
+        case 0:
+            return "NULL";
+        default:
+            // TODO(jmadill): More vendor IDs.
+            UNIMPLEMENTED();
+            return "Unknown";
+    }
+}
+
+int GetAndroidSDKVersion()
+{
+#if defined(ANGLE_PLATFORM_ANDROID)
+    char apiVersion[PROP_VALUE_MAX];
+    int length = __system_property_get("ro.build.version.sdk", apiVersion);
+    if (length == 0)
+    {
+        return 0;
+    }
+    return atoi(apiVersion);
+#else
+    return 0;
+#endif
+}
+
+OSVersion::OSVersion() {}
+OSVersion::OSVersion(int major, int minor, int patch)
+    : majorVersion(major), minorVersion(minor), patchVersion(patch)
+{}
+
+bool operator==(const OSVersion &a, const OSVersion &b)
+{
+    return std::tie(a.majorVersion, a.minorVersion, a.patchVersion) ==
+           std::tie(b.majorVersion, b.minorVersion, b.patchVersion);
+}
+bool operator!=(const OSVersion &a, const OSVersion &b)
+{
+    return std::tie(a.majorVersion, a.minorVersion, a.patchVersion) !=
+           std::tie(b.majorVersion, b.minorVersion, b.patchVersion);
+}
+bool operator<(const OSVersion &a, const OSVersion &b)
+{
+    return std::tie(a.majorVersion, a.minorVersion, a.patchVersion) <
+           std::tie(b.majorVersion, b.minorVersion, b.patchVersion);
+}
+bool operator>=(const OSVersion &a, const OSVersion &b)
+{
+    return std::tie(a.majorVersion, a.minorVersion, a.patchVersion) >=
+           std::tie(b.majorVersion, b.minorVersion, b.patchVersion);
+}
+
+#if !defined(ANGLE_PLATFORM_APPLE)
+OSVersion GetMacOSVersion()
+{
+    // Return a default version
+    return OSVersion(0, 0, 0);
+}
+#endif
+
+#if defined(ANGLE_PLATFORM_LINUX)
+bool ParseLinuxOSVersion(const char *version, int *major, int *minor, int *patch)
+{
+    errno = 0;  // reset global error flag.
+    char *next;
+    *major = static_cast<int>(strtol(version, &next, 10));
+    if (next == nullptr || *next != '.' || errno != 0)
+    {
+        return false;
+    }
+
+    *minor = static_cast<int>(strtol(next + 1, &next, 10));
+    if (next == nullptr || *next != '.' || errno != 0)
+    {
+        return false;
+    }
+
+    *patch = static_cast<int>(strtol(next + 1, &next, 10));
+    if (errno != 0)
+    {
+        return false;
+    }
+
+    return true;
+}
+#endif
+
+OSVersion GetLinuxOSVersion()
+{
+#if defined(ANGLE_PLATFORM_LINUX)
+    struct utsname uname_info;
+    if (uname(&uname_info) != 0)
+    {
+        return OSVersion(0, 0, 0);
+    }
+
+    int majorVersion = 0, minorVersion = 0, patchVersion = 0;
+    if (ParseLinuxOSVersion(uname_info.release, &majorVersion, &minorVersion, &patchVersion))
+    {
+        return OSVersion(majorVersion, minorVersion, patchVersion);
+    }
+#endif
+
+    return OSVersion(0, 0, 0);
+}
+
+// There are multiple environment variables that may or may not be set during Wayland
+// sessions, including WAYLAND_DISPLAY, XDG_SESSION_TYPE, and DESKTOP_SESSION
+bool IsWayland()
+{
+    static bool checked   = false;
+    static bool isWayland = false;
+    if (!checked)
+    {
+        if (IsLinux())
+        {
+            if (!angle::GetEnvironmentVar("WAYLAND_DISPLAY").empty())
+            {
+                isWayland = true;
+            }
+            else if (angle::GetEnvironmentVar("XDG_SESSION_TYPE") == "wayland")
+            {
+                isWayland = true;
+            }
+            else if (angle::GetEnvironmentVar("DESKTOP_SESSION").find("wayland") !=
+                     std::string::npos)
+            {
+                isWayland = true;
+            }
+        }
+        checked = true;
+    }
+    return isWayland;
+}
+
+bool IsWin10OrGreater()
+{
+#if defined(ANGLE_ENABLE_WINDOWS_UWP)
+    return true;
+#elif defined(ANGLE_PLATFORM_WINDOWS)
+    return IsWindows10OrGreater();
+#else
+    return false;
+#endif
+}
+
+}  // namespace rx