[Fix] (MG_Impl, MG_State, MG_Backend, MG_Util): Do source audit by Codex.

MobileGL/MG_Util/Converters/MGToStr/BufferEnumConverter.cpp

@@ -72,6 +72,10 @@ namespace MobileGL {
         }
 
         String ConvertBufferMappingAccessToString(Flags<BufferMappingAccessBit> access) {
+            if (access == BufferMappingAccessBit::Null) {
+                return "[]";
+            }
+
             String result = "[";
             if (access & BufferMappingAccessBit::Read) result += "Read, ";
             if (access & BufferMappingAccessBit::Write) result += "Write, ";
@@ -84,7 +88,7 @@ namespace MobileGL {
             result.pop_back();
             result.pop_back();
             result += "]";
-            return result.empty() ? "[]" : result;
+            return result;
         }
     } // namespace MG_Util
-} // namespace MobileGL
+} // namespace MobileGL

MobileGL/MG_Util/Converters/MGToStr/FramebufferEnumConverter.cpp

@@ -29,6 +29,16 @@ namespace MobileGL {
             }
 
             switch (attachment) {
+            case FramebufferAttachmentType::None:
+                return "None";
+            case FramebufferAttachmentType::FrontLeft:
+                return "FrontLeft";
+            case FramebufferAttachmentType::FrontRight:
+                return "FrontRight";
+            case FramebufferAttachmentType::BackLeft:
+                return "BackLeft";
+            case FramebufferAttachmentType::BackRight:
+                return "BackRight";
             case FramebufferAttachmentType::Depth:
                 return "Depth";
             case FramebufferAttachmentType::Stencil:
@@ -49,4 +59,4 @@ namespace MobileGL {
             }
         }
     } // namespace MG_Util
-} // namespace MobileGL
+} // namespace MobileGL

MobileGL/MG_Util/Converters/MGToStr/RenderStateEnumConverter.cpp

@@ -45,6 +45,45 @@ namespace MobileGL {
             }
         }
 
+        String ConvertLogicOperationToString(LogicOperation v) {
+            switch (v) {
+            case LogicOperation::Clear:
+                return "Clear";
+            case LogicOperation::And:
+                return "And";
+            case LogicOperation::AndReverse:
+                return "AndReverse";
+            case LogicOperation::Copy:
+                return "Copy";
+            case LogicOperation::AndInverted:
+                return "AndInverted";
+            case LogicOperation::Noop:
+                return "Noop";
+            case LogicOperation::Xor:
+                return "Xor";
+            case LogicOperation::Or:
+                return "Or";
+            case LogicOperation::Nor:
+                return "Nor";
+            case LogicOperation::Equiv:
+                return "Equiv";
+            case LogicOperation::Invert:
+                return "Invert";
+            case LogicOperation::OrReverse:
+                return "OrReverse";
+            case LogicOperation::CopyInverted:
+                return "CopyInverted";
+            case LogicOperation::OrInverted:
+                return "OrInverted";
+            case LogicOperation::Nand:
+                return "Nand";
+            case LogicOperation::Set:
+                return "Set";
+            default:
+                return "Unknown";
+            }
+        }
+
         String ConvertDepthTestFuncToString(DepthTestFunc v) {
             switch (v) {
             case DepthTestFunc::Never:
@@ -68,6 +107,29 @@ namespace MobileGL {
             }
         }
 
+        String ConvertStencilOperationToString(StencilOperation v) {
+            switch (v) {
+            case StencilOperation::Keep:
+                return "Keep";
+            case StencilOperation::Zero:
+                return "Zero";
+            case StencilOperation::Replace:
+                return "Replace";
+            case StencilOperation::IncrementClamp:
+                return "IncrementClamp";
+            case StencilOperation::DecrementClamp:
+                return "DecrementClamp";
+            case StencilOperation::Invert:
+                return "Invert";
+            case StencilOperation::IncrementWrap:
+                return "IncrementWrap";
+            case StencilOperation::DecrementWrap:
+                return "DecrementWrap";
+            default:
+                return "Unknown";
+            }
+        }
+
         String ConvertPixelStoreParamToString(PixelStoreParam v) {
             switch (v) {
             case PixelStoreParam::PackAlignment:

MobileGL/MG_Util/Converters/MGToStr/RenderStateEnumConverter.h

@@ -13,7 +13,9 @@
 namespace MobileGL {
     namespace MG_Util {
         String ConvertBlendFactorToString(BlendFactor value);
+        String ConvertLogicOperationToString(LogicOperation value);
         String ConvertDepthTestFuncToString(DepthTestFunc value);
+        String ConvertStencilOperationToString(StencilOperation value);
         String ConvertPixelStoreParamToString(PixelStoreParam value);
         String ConvertCullFaceModeToString(CullFaceMode value);
         String ConvertFrontFaceModeToString(FrontFaceMode value);

MobileGL/MG_Util/Converters/MGToStr/TextureEnumConverter.cpp

@@ -110,6 +110,8 @@ namespace MobileGL {
                 return "RGB10";
             case TextureInternalFormat::RGB12:
                 return "RGB12";
+            case TextureInternalFormat::RGB16:
+                return "RGB16";
             case TextureInternalFormat::RGB16Snorm:
                 return "RGB16Snorm";
             case TextureInternalFormat::RGBA2: