Add PowerVR Vendor ID & Vulkan GL Line Emulation Exclusion

CONTRIBUTORS

@@ -71,6 +71,7 @@ The Qt Company Ltd.
 
 Imagination Technologies Ltd.
  Gregoire Payen de La Garanderie
+ Kyle Griffiths
 
 Intel Corporation
  Jin Yang

src/libANGLE/renderer/driver_utils.cpp

@@ -149,6 +149,8 @@ const char *GetVendorString(uint32_t vendorId)
             return "Intel";
         case VENDOR_ID_NVIDIA:
             return "NVIDIA";
+        case VENDOR_ID_POWERVR:
+            return "Imagination Technologies";
         case VENDOR_ID_QUALCOMM:
             return "Qualcomm";
         default:

src/libANGLE/renderer/driver_utils.h

@@ -25,6 +25,7 @@ enum VendorID : uint32_t
     VENDOR_ID_GOOGLE   = 0x1AE0,
     VENDOR_ID_INTEL    = 0x8086,
     VENDOR_ID_NVIDIA   = 0x10DE,
+    VENDOR_ID_POWERVR  = 0x1010,
     // This is Qualcomm PCI Vendor ID.
     // Android doesn't have a PCI bus, but all we need is a unique id.
     VENDOR_ID_QUALCOMM = 0x5143,
@@ -71,6 +72,11 @@ inline bool IsNvidia(uint32_t vendorId)
     return vendorId == VENDOR_ID_NVIDIA;
 }
 
+inline bool IsPowerVR(uint32_t vendorId)
+{
+    return vendorId == VENDOR_ID_POWERVR;
+}
+
 inline bool IsQualcomm(uint32_t vendorId)
 {
     return vendorId == VENDOR_ID_QUALCOMM;

src/libANGLE/renderer/vulkan/RendererVk.cpp

@@ -1703,6 +1703,7 @@ void RendererVk::initFeatures(DisplayVk *displayVk, const ExtensionNameList &dev
     bool isNvidia   = IsNvidia(mPhysicalDeviceProperties.vendorID);
     bool isQualcomm = IsQualcomm(mPhysicalDeviceProperties.vendorID);
     bool isARM      = IsARM(mPhysicalDeviceProperties.vendorID);
+    bool isPowerVR  = IsPowerVR(mPhysicalDeviceProperties.vendorID);
     bool isSwiftShader =
         IsSwiftshader(mPhysicalDeviceProperties.vendorID, mPhysicalDeviceProperties.deviceID);
 
@@ -1716,7 +1717,7 @@ void RendererVk::initFeatures(DisplayVk *displayVk, const ExtensionNameList &dev
     {
         // Use OpenGL line rasterization rules if extension not available by default.
         // TODO(jmadill): Fix Android support. http://anglebug.com/2830
-        ANGLE_FEATURE_CONDITION(&mFeatures, basicGLLineRasterization, !IsAndroid());
+        ANGLE_FEATURE_CONDITION(&mFeatures, basicGLLineRasterization, !IsAndroid() && !isPowerVR);
     }
 
     if (mProvokingVertexFeatures.provokingVertexLast == VK_TRUE)