Detailed message on error to parse EXR header. (#95)

src/image_decode.cpp

@@ -438,6 +438,26 @@ namespace bimg
 		return output;
 	}
 
+	static void errorSetTinyExr(int _result, bx::Error* _err)
+	{
+		switch (_result)
+		{
+		case TINYEXR_ERROR_INVALID_MAGIC_NUMBER: BX_ERROR_SET(_err, BIMG_ERROR, "EXR: Failed to parse image. Invalid magic number."); break;
+		case TINYEXR_ERROR_INVALID_EXR_VERSION:	 BX_ERROR_SET(_err, BIMG_ERROR, "EXR: Failed to parse image. Invalid EXR version.");  break;
+		case TINYEXR_ERROR_INVALID_ARGUMENT:     BX_ERROR_SET(_err, BIMG_ERROR, "EXR: Failed to parse image. Invalid argument.");     break;
+		case TINYEXR_ERROR_INVALID_DATA:         BX_ERROR_SET(_err, BIMG_ERROR, "EXR: Failed to parse image. Invalid data.");         break;
+		case TINYEXR_ERROR_INVALID_FILE:         BX_ERROR_SET(_err, BIMG_ERROR, "EXR: Failed to parse image. Invalid file.");         break;
+//		case TINYEXR_ERROR_INVALID_PARAMETER:    BX_ERROR_SET(_err, BIMG_ERROR, "EXR: Failed to parse image. Invalid parameter.");    break;
+		case TINYEXR_ERROR_CANT_OPEN_FILE:       BX_ERROR_SET(_err, BIMG_ERROR, "EXR: Failed to parse image. Can't open file.");      break;
+		case TINYEXR_ERROR_UNSUPPORTED_FORMAT:   BX_ERROR_SET(_err, BIMG_ERROR, "EXR: Failed to parse image. Unsupported format.");   break;
+		case TINYEXR_ERROR_INVALID_HEADER:       BX_ERROR_SET(_err, BIMG_ERROR, "EXR: Failed to parse image. Invalid header.");       break;
+		case TINYEXR_ERROR_UNSUPPORTED_FEATURE:  BX_ERROR_SET(_err, BIMG_ERROR, "EXR: Failed to parse image. Unsupported feature.");  break;
+		case TINYEXR_ERROR_CANT_WRITE_FILE:      BX_ERROR_SET(_err, BIMG_ERROR, "EXR: Failed to parse image. Can't write file.");     break;
+		case TINYEXR_ERROR_SERIALZATION_FAILED:  BX_ERROR_SET(_err, BIMG_ERROR, "EXR: Failed to parse image. Serialization failed."); break;
+		default:                                 BX_ERROR_SET(_err, BIMG_ERROR, "EXR: Failed to parse image.");                       break;
+		}
+	}
+
 	static ImageContainer* imageParseTinyExr(bx::AllocatorI* _allocator, const void* _data, uint32_t _size, bx::Error* _err)
 	{
 		BX_ERROR_SCOPE(_err);
@@ -597,29 +617,14 @@ namespace bimg
 			}
 			else
 			{
-				switch (result)
-				{
-				case TINYEXR_ERROR_INVALID_MAGIC_NUMBER: BX_ERROR_SET(_err, BIMG_ERROR, "EXR: Failed to parse image. Invalid magic number."); break;
-				case TINYEXR_ERROR_INVALID_EXR_VERSION:	 BX_ERROR_SET(_err, BIMG_ERROR, "EXR: Failed to parse image. Invalid EXR version.");  break;
-				case TINYEXR_ERROR_INVALID_ARGUMENT:     BX_ERROR_SET(_err, BIMG_ERROR, "EXR: Failed to parse image. Invalid argument.");     break;
-				case TINYEXR_ERROR_INVALID_DATA:         BX_ERROR_SET(_err, BIMG_ERROR, "EXR: Failed to parse image. Invalid data.");         break;
-				case TINYEXR_ERROR_INVALID_FILE:         BX_ERROR_SET(_err, BIMG_ERROR, "EXR: Failed to parse image. Invalid file.");         break;
-//				case TINYEXR_ERROR_INVALID_PARAMETER:    BX_ERROR_SET(_err, BIMG_ERROR, "EXR: Failed to parse image. Invalid parameter.");    break;
-				case TINYEXR_ERROR_CANT_OPEN_FILE:       BX_ERROR_SET(_err, BIMG_ERROR, "EXR: Failed to parse image. Can't open file.");      break;
-				case TINYEXR_ERROR_UNSUPPORTED_FORMAT:   BX_ERROR_SET(_err, BIMG_ERROR, "EXR: Failed to parse image. Unsupported format.");   break;
-				case TINYEXR_ERROR_INVALID_HEADER:       BX_ERROR_SET(_err, BIMG_ERROR, "EXR: Failed to parse image. Invalid header.");       break;
-				case TINYEXR_ERROR_UNSUPPORTED_FEATURE:  BX_ERROR_SET(_err, BIMG_ERROR, "EXR: Failed to parse image. Unsupported feature.");  break;
-				case TINYEXR_ERROR_CANT_WRITE_FILE:      BX_ERROR_SET(_err, BIMG_ERROR, "EXR: Failed to parse image. Can't write file.");     break;
-				case TINYEXR_ERROR_SERIALZATION_FAILED:  BX_ERROR_SET(_err, BIMG_ERROR, "EXR: Failed to parse image. Serialization failed."); break;
-				default:                                 BX_ERROR_SET(_err, BIMG_ERROR, "EXR: Failed to parse image.");                       break;
-				}
+				errorSetTinyExr(result, _err);
 			}
 
 			FreeEXRHeader(&exrHeader);
 		}
 		else
 		{
-			BX_ERROR_SET(_err, BIMG_ERROR, "EXR: Failed to parse header.");
+			errorSetTinyExr(result, _err);
 		}
 
 		ImageContainer* output = NULL;