GL: Add detection of IMG and Vivante GPUs.

src/libANGLE/renderer/driver_utils.h

@@ -31,6 +31,7 @@ enum VendorID : uint32_t
     VENDOR_ID_QUALCOMM = 0x5143,
     VENDOR_ID_SAMSUNG  = 0x144D,
     VENDOR_ID_VMWARE   = 0x15AD,
+    VENDOR_ID_VIVANTE  = 0x9999,
 };
 
 enum AndroidDeviceID : uint32_t
@@ -92,6 +93,11 @@ inline bool IsSamsung(uint32_t vendorId)
     return vendorId == VENDOR_ID_SAMSUNG;
 }
 
+inline bool IsVivante(uint32_t vendorId)
+{
+    return vendorId == VENDOR_ID_VIVANTE;
+}
+
 inline bool IsNexus5X(uint32_t vendorId, uint32_t deviceId)
 {
     return IsQualcomm(vendorId) && deviceId == ANDROID_DEVICE_ID_NEXUS5X;

src/libANGLE/renderer/gl/renderergl_utils.cpp

@@ -66,6 +66,14 @@ VendorID GetVendorID(const FunctionsGL *functions)
     {
         return VENDOR_ID_INTEL;
     }
+    else if (nativeVendorString.find("Imagination") != std::string::npos)
+    {
+        return VENDOR_ID_POWERVR;
+    }
+    else if (nativeVendorString.find("Vivante") != std::string::npos)
+    {
+        return VENDOR_ID_VIVANTE;
+    }
     else
     {
         return VENDOR_ID_UNKNOWN;