Vulkan: Add support for OES_vertex_half_float

CONTRIBUTORS

@@ -150,6 +150,7 @@ AdaptVis GmbH
 
 Samsung Electronics, Inc.
  Brandon Schade
+ Hyunchang Kim
  Minkyu Jeong
  Mohan Maiya
 

src/libANGLE/Caps.cpp

@@ -795,6 +795,7 @@ const ExtensionInfoMap &GetExtensionInfoMap()
         map["GL_EXT_unpack_subimage"] = enableableExtension(&Extensions::unpackSubimage);
         map["GL_NV_pack_subimage"] = enableableExtension(&Extensions::packSubimage);
         map["GL_EXT_color_buffer_float"] = enableableExtension(&Extensions::colorBufferFloat);
+        map["GL_OES_vertex_half_float"] = enableableExtension(&Extensions::vertexHalfFloat);
         map["GL_OES_vertex_array_object"] = enableableExtension(&Extensions::vertexArrayObject);
         map["GL_KHR_debug"] = esOnlyExtension(&Extensions::debug);
         map["GL_OES_texture_border_clamp"] = enableableExtension(&Extensions::textureBorderClamp);

src/libANGLE/Caps.h

@@ -373,6 +373,9 @@ struct Extensions
     // NV_pack_subimage
     bool packSubimage = false;
 
+    // GL_OES_vertex_half_float
+    bool vertexHalfFloat = false;
+
     // GL_OES_vertex_array_object
     bool vertexArrayObject = false;
 

src/libANGLE/renderer/vulkan/vk_caps_utils.cpp

@@ -74,6 +74,8 @@ void RendererVk::ensureCapsInitialized() const
     mNativeExtensions.semaphore   = true;
     mNativeExtensions.semaphoreFd = getFeatures().supportsExternalSemaphoreFd.enabled;
 
+    mNativeExtensions.vertexHalfFloat = true;
+
     // TODO: Enable this always and emulate instanced draws if any divisor exceeds the maximum
     // supported.  http://anglebug.com/2672
     mNativeExtensions.instancedArraysANGLE = mMaxVertexAttribDivisor > 1;