■ WEBP 이미지 파일 로드하고 저장하는 방법을 보여준다.
▶ DecodingState.cs
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namespace TestProject { /// <summary> /// 디코딩 상태 /// </summary> public enum DecodingState { /// <summary> /// STATE_WEBP_HEADER /// </summary> STATE_WEBP_HEADER, /// <summary> /// STATE_VP8_HEADER /// </summary> STATE_VP8_HEADER, /// <summary> /// STATE_VP8_PARTS0 /// </summary> STATE_VP8_PARTS0, /// <summary> /// STATE_VP8_DATA /// </summary> STATE_VP8_DATA, /// <summary> /// STATE_VP8L_HEADER /// </summary> STATE_VP8L_HEADER, /// <summary> /// STATE_VP8L_DATA /// </summary> STATE_VP8L_DATA, /// <summary> /// STATE_DONE /// </summary> STATE_DONE, /// <summary> /// STATE_ERROR /// </summary> STATE_ERROR }; } |
▶ VP8StatusCode.cs
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namespace TestProject { /// <summary> /// VP8 상태 코드 /// </summary> public enum VP8StatusCode { /// <summary> /// VP8_STATUS_OK /// </summary> VP8_STATUS_OK = 0, /// <summary> /// VP8_STATUS_OUT_OF_MEMORY /// </summary> VP8_STATUS_OUT_OF_MEMORY, /// <summary> /// VP8_STATUS_INVALID_PARAMETER /// </summary> VP8_STATUS_INVALID_PARAMETER, /// <summary> /// VP8_STATUS_BIT_STREAM_ERROR /// </summary> VP8_STATUS_BIT_STREAM_ERROR, /// <summary> /// VP8_STATUS_UNSUPPORTED_FEATURE /// </summary> VP8_STATUS_UNSUPPORTED_FEATURE, /// <summary> /// VP8_STATUS_SUSPENDED /// </summary> VP8_STATUS_SUSPENDED, /// <summary> /// VP8_STATUS_USER_ABORT /// </summary> VP8_STATUS_USER_ABORT, /// <summary> /// VP8_STATUS_NOT_ENOUGH_DATA /// </summary> VP8_STATUS_NOT_ENOUGH_DATA } } |
▶ WEBP_CSP_MODE.cs
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namespace TestProject { /// <summary> /// WEBP CSP 모드 /// </summary> public enum WEBP_CSP_MODE { /// <summary> /// MODE_RGB /// </summary> MODE_RGB = 0, /// <summary> /// MODE_RGBA /// </summary> MODE_RGBA = 1, /// <summary> /// MODE_BGR /// </summary> MODE_BGR = 2, /// <summary> /// MODE_BGRA /// </summary> MODE_BGRA = 3, /// <summary> /// MODE_ARGB /// </summary> MODE_ARGB = 4, /// <summary> /// MODE_RGBA_4444 /// </summary> MODE_RGBA_4444 = 5, /// <summary> /// MODE_RGB_565 /// </summary> MODE_RGB_565 = 6, /// <summary> /// MODE_rgbA /// </summary> MODE_rgbA = 7, /// <summary> /// MODE_bgrA /// </summary> MODE_bgrA = 8, /// <summary> /// MODE_Argb /// </summary> MODE_Argb = 9, /// <summary> /// MODE_rgbA_4444 /// </summary> MODE_rgbA_4444 = 10, /// <summary> /// MODE_YUV /// </summary> MODE_YUV = 11, /// <summary> /// MODE_YUVA /// </summary> MODE_YUVA = 12, /// <summary> /// MODE_LAST /// </summary> MODE_LAST = 13 } } |
▶ WEBPEncodingError.cs
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namespace TestProject { /// <summary> /// WEBP 인코딩 에러 /// </summary> public enum WEBPEncodingError { /// <summary> /// VP8_ENC_OK /// </summary> VP8_ENC_OK = 0, /// <summary> /// VP8_ENC_ERROR_OUT_OF_MEMORY /// </summary> VP8_ENC_ERROR_OUT_OF_MEMORY, /// <summary> /// VP8_ENC_ERROR_BITSTREAM_OUT_OF_MEMORY /// </summary> VP8_ENC_ERROR_BITSTREAM_OUT_OF_MEMORY, /// <summary> /// VP8_ENC_ERROR_NULL_PARAMETER /// </summary> VP8_ENC_ERROR_NULL_PARAMETER, /// <summary> /// VP8_ENC_ERROR_INVALID_CONFIGURATION /// </summary> VP8_ENC_ERROR_INVALID_CONFIGURATION, /// <summary> /// VP8_ENC_ERROR_BAD_DIMENSION /// </summary> VP8_ENC_ERROR_BAD_DIMENSION, /// <summary> /// VP8_ENC_ERROR_PARTITION0_OVERFLOW /// </summary> VP8_ENC_ERROR_PARTITION0_OVERFLOW, /// <summary> /// VP8_ENC_ERROR_PARTITION_OVERFLOW /// </summary> VP8_ENC_ERROR_PARTITION_OVERFLOW, /// <summary> /// VP8_ENC_ERROR_BAD_WRITE /// </summary> VP8_ENC_ERROR_BAD_WRITE, /// <summary> /// VP8_ENC_ERROR_FILE_TOO_BIG /// </summary> VP8_ENC_ERROR_FILE_TOO_BIG, /// <summary> /// VP8_ENC_ERROR_USER_ABORT /// </summary> VP8_ENC_ERROR_USER_ABORT, /// <summary> /// VP8_ENC_ERROR_LAST /// </summary> VP8_ENC_ERROR_LAST, } } |
▶ WEBPImageHint.cs
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namespace TestProject { /// <summary> /// WEBP 이미지 힌트 /// </summary> public enum WEBPImageHint { /// <summary> /// WEBP_HINT_DEFAULT /// </summary> WEBP_HINT_DEFAULT = 0, /// <summary> /// WEBP_HINT_PICTURE /// </summary> WEBP_HINT_PICTURE, /// <summary> /// WEBP_HINT_PHOTO /// </summary> WEBP_HINT_PHOTO, /// <summary> /// WEBP_HINT_GRAPH /// </summary> WEBP_HINT_GRAPH, /// <summary> /// WEBP_HINT_LAST /// </summary> WEBP_HINT_LAST }; } |
▶ WEBPPreset.cs
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namespace TestProject { /// <summary> /// WEBP 사전 세트 /// </summary> public enum WEBPPreset { /// <summary> /// WEBP_PRESET_DEFAULT /// </summary> WEBP_PRESET_DEFAULT = 0, /// <summary> /// WEBP_PRESET_PICTURE /// </summary> WEBP_PRESET_PICTURE, /// <summary> /// WEBP_PRESET_PHOTO /// </summary> WEBP_PRESET_PHOTO, /// <summary> /// WEBP_PRESET_DRAWING /// </summary> WEBP_PRESET_DRAWING, /// <summary> /// WEBP_PRESET_ICON /// </summary> WEBP_PRESET_ICON, /// <summary> /// WEBP_PRESET_TEXT /// </summary> WEBP_PRESET_TEXT }; } |
▶ RGBA_YUVA_Buffer.cs
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using System.Runtime.InteropServices; namespace TestProject { /// <summary> /// RGBA YUVA 버퍼 /// </summary> /// <remarks>버퍼 매개변수의 합집합</remarks> [StructLayoutAttribute(LayoutKind.Explicit)] public struct RGBA_YUVA_Buffer { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Public #region Field /// <summary> /// RGBA /// </summary> [FieldOffsetAttribute(0)] public WEBPRGBABuffer RGBA; /// <summary> /// YUVA /// </summary> [FieldOffsetAttribute(0)] public WEBPYUVABuffer YUVA; #endregion } } |
▶ WEBPAuxiliaryStatistics.cs
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using System.Runtime.InteropServices; namespace TestProject { /// <summary> /// WEBP 보조 통계 /// </summary> /// <remarks>보조 통계를 저장하기 위한 구조(대부분 손실 인코딩용)</remarks> [StructLayoutAttribute(LayoutKind.Sequential)] public struct WEBPAuxiliaryStatistics { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Public #region Field /// <summary> /// 코드된 크기 /// </summary> /// <remarks>최종 크기</remarks> public int CodedSize; /// <summary>PSNR Y</summary> /// <remarks>Y에 대한 피크 신호 대 잡음비</remarks> public float PSNRY; /// <summary> /// PSNR U /// </summary> /// <remarks>U의 피크 신호 대 잡음비</remarks> public float PSNRU; /// <summary> /// PSNR V /// </summary> /// <remarks>V에 대한 피크 신호 대 잡음비</remarks> public float PSNRV; /// <summary>PSNR ALL</summary> /// <remarks>모두에 대한 피크 신호 대 잡음비</remarks> public float PSNRALL; /// <summary> /// PSNR 알파 /// </summary> /// <remarks>Alpha의 피크 신호 대 잡음비</remarks> public float PSNRAlpha; /// <summary>블럭 수 인트라 4</summary> /// <remarks>인트라 4의 수</remarks> public int BlockCountIntra4; /// <summary>블럭 수 인트라 16</summary> /// <remarks>인트라 16의 수</remarks> public int BlockCountIntra16; /// <summary>블럭 수 스킵</summary> /// <remarks>건너뛴 매크로 블록 수</remarks> public int BlockCountSkipped; /// <summary> /// 헤더 바이트 수 /// </summary> /// <remarks>헤더에 소요된 대략적인 바이트 수</remarks> public int HeaderByteCount; /// <summary> /// 모드 파티션 #0 /// </summary> /// <remarks>모드 파티션 #0에 소요된 대략적인 바이트 수</remarks> public int ModePartition0; /// <summary> /// DC 세그먼트 0 잔여 바이트 수 /// </summary> /// <remarks>세그먼트 0의 DC 계수에 사용된 대략적인 바이트 수</remarks> public int ResidualByteCountDCSegments0; /// <summary> /// AC 세그먼트 0 잔여 바이트 수 /// </summary> /// <remarks>세그먼트 0의 AC 계수에 소비된 대략적인 바이트 수</remarks> public int ResidualByteCountACSegments0; /// <summary> /// UV 세그먼트 0 잔여 바이트 수 /// </summary> /// <remarks>세그먼트 0의 UV 계수에 소비된 대략적인 바이트 수</remarks> public int ResidualByteCountUVSegments0; /// <summary> /// DC 세그먼트 1 잔여 바이트 수 /// </summary> /// <remarks>세그먼트 1의 DC 계수에 소비된 대략적인 바이트 수</remarks> public int ResidualByteCountDCSegments1; /// <summary> /// AC 세그먼트 1 잔여 바이트 수 /// </summary> /// <remarks>세그먼트 1의 AC 계수에 소비된 대략적인 바이트 수</remarks> public int ResidualByteCountACSegments1; /// <summary> /// UV 세그먼트 1 잔여 바이트 수 /// </summary> /// <remarks>세그먼트 1의 UV 계수에 소비된 대략적인 바이트 수</remarks> public int ResidualByteCountUVSegments1; /// <summary> /// DC 세그먼트 2 잔여 바이트 수 /// </summary> /// <remarks>세그먼트 2의 DC 계수에 사용된 대략적인 바이트 수</remarks> public int ResidualByteCountDCSegments2; /// <summary> /// AC 세그먼트 2 잔여 바이트 수 /// </summary> /// <remarks>세그먼트 2의 AC 계수에 사용된 대략적인 바이트 수</remarks> public int ResidualByteCountACSegments2; /// <summary> /// UV 세그먼트 2 잔여 바이트 수 /// </summary> /// <remarks>세그먼트 2의 UV 계수에 소비된 대략적인 바이트 수</remarks> public int ResidualByteCountUVSegments2; /// <summary> /// DC 세그먼트 3 잔여 바이트 수 /// </summary> /// <remarks>세그먼트 3의 DC 계수에 사용된 대략적인 바이트 수</remarks> public int ResidualByteCountDCSegments3; /// <summary> /// AC 세그먼트 3 잔여 바이트 수 /// </summary> /// <remarks>세그먼트 3의 AC 계수에 사용된 대략적인 바이트 수</remarks> public int ResidualByteCountACSegments3; /// <summary> /// UV 세그먼트 3 잔여 바이트 수 /// </summary> /// <remarks>세그먼트 3의 UV 계수에 소비된 대략적인 바이트 수</remarks> public int ResidualByteCountUVSegments3; /// <summary> /// 세그먼트 0 세그먼트 크기 /// </summary> /// <remarks>세그먼트 0의 매크로 블록 수</remarks> public int SegmentSizeSegments0; /// <summary> /// 세그먼트 1 세그먼트 크기 /// </summary> /// <remarks>세그먼트 1의 매크로 블록 수</remarks> public int SegmentSizeSegments1; /// <summary> /// 세그먼트 2 세그먼트 크기 /// </summary> /// <remarks>세그먼트 2의 매크로 블록 수</remarks> public int SegmentSizeSegments2; /// <summary> /// 세그먼트 3 세그먼트 크기 /// </summary> /// <remarks>세그먼트 3의 매크로 블록 수</remarks> public int SegmentSizeSegments3; /// <summary> /// 세그먼트 0 세그먼트 양자화 /// </summary> /// <remarks>세그먼트 0의 양자화 값</remarks> public int SegmentQuantizerSegments0; /// <summary> /// 세그먼트 1 세그먼트 양자화 /// </summary> /// <remarks>세그먼트 1의 양자화 값</remarks> public int SegmentQuantizerSegments1; /// <summary> /// 세그먼트 2 세그먼트 양자화 /// </summary> /// <remarks>세그먼트 2의 양자화 값</remarks> public int SegmentQuantizerSegments2; /// <summary> /// 세그먼트 3 세그먼트 양자화 /// </summary> /// <remarks>세그먼트 3의 양자화 값</remarks> public int SegmentQuantizerSegments3; /// <summary> /// 세그먼트 0 세그먼트 레벨 /// </summary> /// <remarks>세그먼트 0의 필터링 강도 [0..63]</remarks> public int SegmentLevelSegments0; /// <summary> /// 세그먼트 1 세그먼트 레벨 /// </summary> /// <remarks>세그먼트 1의 필터링 강도 [0..63]</remarks> public int SegmentLevelSegments1; /// <summary> /// 세그먼트 2 세그먼트 레벨 /// </summary> /// <remarks>세그먼트 2의 필터링 강도 [0..63]</remarks> public int SegmentLevelSegments2; /// <summary> /// 세그먼트 3 세그먼트 레벨 /// </summary> /// <remarks>세그먼트 3의 필터링 강도 [0..63]</remarks> public int SegmentLevelSegments3; /// <summary> /// 알파 데이터 크기 /// </summary> /// <remarks>투명도 데이터의 크기</remarks> public int AlphaDataSize; /// <summary> /// 레이어 데이터 크기 /// </summary> /// <remarks>향상 계층 데이터의 크기</remarks> public int LayerDataSize; /// <summary> /// 무손실 특징 /// </summary> /// <remarks> /// 무손실 인코더 통계 /// bit0 : predictor, bit1 : cross-color transform, bit2 : subtract-green, bit3 : color indexing /// </remarks> public int LosslessFeatures; /// <summary> /// 히스토그램 비트 수 /// </summary> /// <remarks>히스토그램의 정밀도 비트 수</remarks> public int HistogramBitCount; /// <summary> /// 변환 비트 수 /// </summary> /// <remarks>변환용 정밀도 비트 수</remarks> public int TransformBitCount; /// <summary> /// 캐시 비트 수 /// </summary> /// <remarks>색상 캐시 조회를 위한 비트 수</remarks> public int CacheBitCount; /// <summary> /// 팔레트 크기 /// </summary> /// <remarks>사용된 경우 팔레트의 색상 수</remarks> public int PaletteSize; /// <summary> /// 무손실 크기 /// </summary> /// <remarks>최종 무손실 크기</remarks> public int LosslessSize; /// <summary> /// 무손실 HDR 크기 /// </summary> /// <remarks>무손실 헤더(transform, Huffman 등) 크기</remarks> public int LosslessHDRSize; /// <summary> /// 무손실 데이터 크기 /// </summary> /// <remarks>무손실 이미지 데이터 크기</remarks> public int LosslessDataSize; /// <summary> /// 패딩 /// </summary> [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.U4)] private readonly uint[] Padding; #endregion }; } |
▶ WEBPBitStreamFeatures.cs
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using System.Runtime.InteropServices; namespace TestProject { /// <summary> /// WEBP 비트 스트림 특징 /// </summary> [StructLayoutAttribute(LayoutKind.Sequential)] public struct WEBPBitStreamFeatures { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Public #region Field /// <summary> /// 너비 /// </summary> public int Width; /// <summary> /// 높이 /// </summary> public int Height; /// <summary> /// 알파 여부 /// </summary> public int HasAlpha; /// <summary> /// 애니메이션 여부 /// </summary> public int HasAnimation; /// <summary> /// 포맷 /// </summary> public int Format; #endregion ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 패딩 /// </summary> [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 5, ArraySubType = UnmanagedType.U4)] private readonly uint[] Padding; #endregion }; } |
▶ WEBPConfiguration.cs
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using System.Runtime.InteropServices; namespace TestProject { /// <summary> /// WEBP 구성 /// </summary> [StructLayoutAttribute(LayoutKind.Sequential)] public struct WEBPConfiguration { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Public #region Field /// <summary> /// 무손실 인코딩 /// </summary> /// <remarks>무손실 인코딩 (0 : 손실(디폴트), 1 : 무손실)</remarks> public int Lossless; /// <summary> /// 품질 /// </summary> /// <remarks>0 (가장 작은 파일) ~ 100 (가장 큰 파일)</remarks> public float Quality; /// <summary> /// 메소드 /// </summary> /// <remarks>Quality/speed trade-off (0=fast, 6=slower-better)</remarks> public int Method; /// <summary> /// 이미지 힌트 /// </summary> public WEBPImageHint ImageHint; /// <summary> /// 타겟 크기 /// </summary> /// <remarks> /// 0이 아닌 경우 원하는 대상 크기를 바이트 단위로 설정한다. /// '압축' 매개변수보다 우선한다. /// </remarks> public int TargetSize; /// <summary> /// 타겟 PSNR /// </summary> /// <remarks> /// 0이 아닌 경우 달성하려는 최소 왜곡을 지정한다. /// TargetSize보다 우선한다. /// </remarks> public float TargetPSNR; /// <summary> /// 세그먼트 수 /// </summary> /// <remarks>[1..4]에서 사용할 최대 세그먼트 수</remarks> public int SegmentCount; /// <summary> /// 공간 노이즈 쉐이핑 강도 /// </summary> /// <remarks>공간 노이즈 쉐이핑 : 0 = 해제, 100 = 최대</remarks> public int SpatialNoiseShapingStrength; /// <summary> /// 필터 강도 /// </summary> /// <remarks>범위 : [0 = 꺼짐 .. 100 = 가장 강함]</remarks> public int FilterStrength; /// <summary> /// 필터 선명도 /// </summary> /// <remarks>범위 : [0 = 꺼짐 .. 7 = 최소 선명도]</remarks> public int FilterSharpness; /// <summary> /// 필터 타입 /// </summary> /// <remarks>필터링 타입 : 0 = 단순, 1 = 강력(filter_strength > 0 또는 자동 필터 > 0인 경우에만 사용됨)</remarks> public int FilterType; /// <summary> /// 자동 필터 /// </summary> /// <remarks>필터 강도 자동 조정 [0 = 끄기, 1 = 켜기]</remarks> public int AutoFilter; /// <summary> /// 알파 압축 /// </summary> /// <remarks> /// 알파 평면 인코딩 알고리즘 (0 = 없음, 1 = WebP 무손실 압축) /// 기본값은 1입니다. /// </remarks> public int AlphaCompression; /// <summary> /// 알파 필터링 /// </summary> /// <remarks> /// 알파 평면에 대한 예측 필터링 방법 /// 0 : 없음, 1 : 빠름, 2 : 최상 /// 1인 경우 기본값 /// </remarks> public int AlphaFiltering; /// <summary> /// 알파 품질 /// </summary> /// <remarks> /// 0(가장 작은 크기)에서 100(무손실) 사이 /// 기본값은 100입니다. /// </remarks> public int AlphaQuality; /// <summary> /// 패스 /// </summary> /// <remarks>엔트로피 분석 패스 수([1..10])</remarks> public int Pass; /// <summary> /// 압푹 표시 /// </summary> /// <remarks> /// true이면 압축된 그림을 다시 내보낸다. /// 인루프 필터링이 적용되지 않음 /// </remarks> public int ShowCompressed; /// <summary> /// 사전 처리 /// </summary> /// <remarks>전처리 필터 (0 = 없음, 1 = 세그먼트 스무드, 2 = 의사 무작위 디더링)</remarks> public int Preprocessing; /// <summary> /// 파티션 /// </summary> /// <remarks> /// [0..3]의 Log2(토큰 파티션 수)는 보다 쉬운 점진적 디코딩을 위해 기본값이 0으로 설정된다. /// </remarks> public int Partitions; /// <summary> /// 파티션 제한 /// </summary> /// <remarks> /// 예측 모드 코딩에 대한 512k 제한에 맞게 품질 저하 허용(0 : 저하 없음, 100 : 가능한 최대 저하) /// </remarks> public int PartitionLimit; /// <summary> /// JPEG 크기 에뮬레이트 /// </summary> /// <remarks> /// true인 경우 JPEG 압축의 예상 출력 크기와 더 잘 일치하도록 압축 매개변수가 다시 매핑된다. /// 일반적으로 출력 크기는 비슷하지만 성능 저하가 더 낮다. /// </remarks> public int EmulateJPEGSize; /// <summary> /// 쓰레드 레벨 /// </summary> /// <remarks> /// 0이 아닌 경우 다중 스레드 인코딩을 시도하고 사용한다. /// </remarks> public int ThreadLevel; /// <summary> /// 낮은 메모리 /// </summary> /// <remarks>설정하면 메모리 사용량을 줄인다(그러나 CPU 사용량을 늘림).</remarks> public int LowMemory; /// <summary> /// 무손실 근접 /// </summary> /// <remarks> /// 근접 무손실 인코딩 [0 = 최대 손실 .. 100 = 꺼짐(기본값)] /// </remarks> public int NearLossless; /// <summary> /// 정확도 /// </summary> /// <remarks> /// 0이 아닌 경우 투명 영역에서 정확한 RGB 값을 유지한다. /// 그렇지 않으면 더 나은 압축을 위해 이 보이지 않는 RGB 정보를 버린다. /// 기본값은 0이다. /// </remarks> public int Exact; /// <summary> /// 델타 팔레트화 /// </summary> /// <remarks>향후 무손실 기능을 위해 예약됨</remarks> public int DeltaPalettization; /// <summary> /// 선명한 YUV 사용 여부 /// </summary> /// <remarks>필요한 경우 선명한(그리고 느린) RGB->YUV 변환을 사용한다.</remarks> public int UseSharpYUV; #endregion ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 패딩 1 /// </summary> private readonly int Padding1; /// <summary> /// 패딩 2 /// </summary> private readonly int Padding2; #endregion }; } |
▶ WEBPDecoderBuffer.cs
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using System; using System.Runtime.InteropServices; namespace TestProject { /// <summary> /// WEBP 디코더 버퍼 /// </summary> [StructLayoutAttribute(LayoutKind.Sequential)] public struct WEBPDecoderBuffer { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Public #region Field /// <summary> /// 색상 공간 /// </summary> public WEBP_CSP_MODE ColorSpace; /// <summary> /// 너비 /// </summary> public int Width; /// <summary> /// 높이 /// </summary> public int Height; /// <summary> /// 외부 메모리 여부 /// </summary> /// <remarks> /// 0이 아니면 'internal_memory' 포인터를 사용하지 않는다. /// 값이 '2' 이상이면 외부 메모리가 '느림'으로 간주되어 다중 읽기/쓰기가 방지된다. /// </remarks> public int IsExternalMemory; /// <summary> /// U /// </summary> /// <remarks>출력 버퍼 매개변수</remarks> public RGBA_YUVA_Buffer U; /// <summary> /// 패딩 1 /// </summary> private readonly uint Padding1; /// <summary> /// 패딩 2 /// </summary> private readonly uint Padding2; /// <summary> /// 패딩 3 /// </summary> private readonly uint Padding3; /// <summary> /// 패딩 4 /// </summary> private readonly uint Padding4; /// <summary> /// 전용 메모리 /// </summary> /// <remarks> /// 내부적으로 할당된 메모리(is_external_memory가 0인 경우에만) /// 외부에서 사용해서는 안 되지만 WebPRGBABuffer를 통해 액세스해야 한다. /// </remarks> public IntPtr PrivateMemory; #endregion } } |
▶ WEBPDecoderConfiguration.cs
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using System.Runtime.InteropServices; namespace TestProject { /// <summary> /// WEBP 디코더 구성 /// </summary> [StructLayoutAttribute(LayoutKind.Sequential)] public struct WEBPDecoderConfiguration { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Public #region Field /// <summary> /// 입력 /// </summary> /// <remarks>불변 비트 스트림 기능(선택 사항)</remarks> public WEBPBitStreamFeatures Input; /// <summary> /// 출력 /// </summary> /// <remarks>출력 버퍼(외부 메모리를 가리킬 수 있음)</remarks> public WEBPDecoderBuffer Output; /// <summary> /// 디코딩 옵션 /// </summary> public WEBPDecoderOptions Options; #endregion } } |
▶ WEBPDecoderOptions.cs
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using System.Runtime.InteropServices; namespace TestProject { /// <summary> /// WEBP 디코더 옵션 /// </summary> [StructLayout(LayoutKind.Sequential)] public struct WEBPDecoderOptions { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Public #region Field /// <summary> /// 바이패스 필터링 /// </summary> /// <remarks> /// true인 경우 루프 내 필터링을 건너뛴다. /// </remarks> public int BypassFiltering; /// <summary> /// 팬시 업샘플링 없음 /// </summary> /// <remarks>true인 경우 더 빠른 포인트별 업샘플러를 사용한다.</remarks> public int NoFancyUpsampling; /// <summary> /// 잘라내기 사용 여부 /// </summary> /// <remarks>true인 경우 자르기가 _first_ 적용된다.</remarks> public int UseCropping; /// <summary> /// 왼쪽 잘라내기 /// </summary> /// <remarks> /// 자르기 위한 왼쪽 위치이다. /// 짝수 값으로 스냅된다. /// </remarks> public int CropLeft; /// <summary> /// 위쪽 잘라내기 /// </summary> /// <remarks> /// 자르기의 최상위 위치이다. /// 짝수 값으로 스냅된다. /// </remarks> public int CropTop; /// <summary> /// 너비 잘라내기 /// </summary> /// <remarks>자르기 영역의 너비</remarks> public int CropWidth; /// <summary> /// 높이 잘라내기 /// </summary> /// <remarks>자르기 영역의 높이</remarks> public int CropHeight; /// <summary> /// 스케일링 사용 여부 /// </summary> public int UseScaling; /// <summary> /// 스케일 너비 /// </summary> /// <remarks>최종 너비</remarks> public int ScaledWidth; /// <summary> /// 스케일 높이 /// </summary> /// <remarks>최종 높이</remarks> public int ScaledHeight; /// <summary> /// 쓰레드 사용 여부 /// </summary> /// <remarks>true인 경우 다중 스레드 디코딩을 사용한다.</remarks> public int UseThreads; /// <summary> /// 디더링 강도 /// </summary> /// <remarks>디더링 강도(0 = 끄기, 100 = 전체)</remarks> public int DitheringStrength; /// <summary> /// 플립 /// </summary> /// <remarks>출력을 세로로 뒤집는다.</remarks> public int Flip; /// <summary> /// 알파 디더링 강도 /// </summary> /// <remarks>[0..100]의 알파 디더링 강도</remarks> public int AlphaDitheringStrength; /// <summary> /// 패딩 1 /// </summary> private readonly uint Padding1; /// <summary> /// 패딩 2 /// </summary> private readonly uint Padding2; /// <summary> /// 패딩 3 /// </summary> private readonly uint Padding3; /// <summary> /// 패딩 4 /// </summary> private readonly uint Padding4; /// <summary> /// 패딩 5 /// </summary> private readonly uint Padding5; #endregion }; } |
▶ WEBPPicture.cs
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using System; using System.Runtime.InteropServices; namespace TestProject { /// <summary> /// WEBP 픽처 /// </summary> [StructLayoutAttribute(LayoutKind.Sequential)] public struct WEBPPicture { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Public #region Field /// <summary> /// ARGB 사용 여부 /// </summary> /// <remarks> /// ARGB 또는 YUV 입력 중에서 인코더를 선택하기 위한 기본 플래그이다. /// 손실이 없는 경우에는 ARGB 입력(*argb, argb_stride)을 사용하고 손실이 없는 경우에는 YUV 입력(*y, *u, *v 등)을 사용하는 것이 좋다. /// </remarks> public int UseARGB; /// <summary> /// 색상 공간 /// </summary> /// <remarks> /// 색 공간: 지금은 YUV420이어야 한다(=Y'CbCr). /// 값 = 0 /// </remarks> public uint ColorSpace; /// <summary> /// 너비 /// </summary> /// <remarks>그림 너비(WEBP_MAX_DIMENSION 이하)</remarks> public int Width; /// <summary> /// 높이 /// </summary> /// <remarks>사진 높이(WEBP_MAX_DIMENSION 이하)</remarks> public int Height; /// <summary> /// Y /// </summary> /// <remarks>루마 평면에 대한 포인터</remarks> public IntPtr Y; /// <summary> /// U /// </summary> /// <remarks>크로마 U 평면에 대한 포인터</remarks> public IntPtr U; /// <summary> /// V /// </summary> /// <remarks>크로마 V 평면에 대한 포인터</remarks> public IntPtr V; /// <summary> /// Y 스트라이드 /// </summary> /// <remarks>루마 스트라이드</remarks> public int YStride; /// <summary> /// UV 스트라이드 /// </summary> /// <remarks>크로마 스트라이드</remarks> public int UVStride; /// <summary> /// A /// </summary> /// <remarks>알파 평면에 대한 포인터</remarks> public IntPtr A; /// <summary> /// A 스트라이드 /// </summary> /// <remarks>알파 평면의 보폭</remarks> public int AStride; /// <summary> /// 패딩 1 /// </summary> [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.U4)] private readonly uint[] Padding1; /// <summary> /// ARGB /// </summary> /// <remarks>ARGB(32비트) 평면에 대한 포인터</remarks> public IntPtr ARGB; /// <summary> /// ARGB 스트라이드 /// </summary> /// <remarks>이것은 바이트가 아닌 픽셀 단위의 스트라이드이다.</remarks> public int ARGBStride; /// <summary> /// 패딩 2 /// </summary> [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 3, ArraySubType = UnmanagedType.U4)] private readonly uint[] Padding2; /// <summary> /// 작성자 /// </summary> /// <remarks>압축된 바이트가 준비되면 저장하기 위한 바이트 방출 후크</remarks> public IntPtr Writer; /// <summary> /// 커스컴 포인터 /// </summary> /// <remarks>작성자가 사용할 수 있다.</remarks> public IntPtr CustomPointer; /// <summary> /// 부가 정보 타입 /// </summary> /// <remarks> /// 추가 정보를 위한 맵(손실 압축 모드에만 해당) /// 1 : intra type, 2 : segment, 3 : quant, 4 : intra-16 prediction mode, 5 : chroma prediction mode, 6 : bit cost, 7 : distortion /// </remarks> public int ExtraInformationType; /// <summary> /// 부가 정보 /// </summary> /// <remarks> /// NULL이 아니면 ExtraInformationType에 따라 매크로 블록 맵으로 채워질 ((width + 15) / 16) * ((height + 15) / 16) 크기의 배열을 가리킨다. /// </remarks> public IntPtr ExtraInformation; /// <summary> /// 통계 /// </summary> /// <remarks> /// 사이드 통계에 대한 포인터(NULL이 아닌 경우에만 업데이트됨) /// </remarks> public IntPtr Statistics; /// <summary> /// 에러 코드 /// </summary> /// <remarks> /// 인코딩 중 발생한 최신 오류에 대한 오류 코드 /// </remarks> public uint ErrorCode; /// <summary> /// 프로세스 후크 /// </summary> /// <remarks>NULL이 아니면 인코딩 중 진행 상황 보고</remarks> public IntPtr ProgressHook; /// <summary> /// 사용자 데이터 /// </summary> /// <remarks>이 필드는 임의의 값으로 자유롭게 설정할 수 있으며 콜백 중에 사용된다(예 : 진행 보고서).</remarks> public IntPtr UserData; /// <summary> /// 패딩 3 /// </summary> [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 13, ArraySubType = UnmanagedType.U4)] private readonly uint[] Padding3; /// <summary> /// 메모리 YUVA /// </summary> /// <remarks> /// YUVA 평면에 대한 메모리 행 청크 /// </remarks> private readonly IntPtr MemoryYUVA; /// <summary> /// 메모리 ARGB /// </summary> /// <remarks> /// ARGB 평면에 대한 메모리 행 청크 /// </remarks> private readonly IntPtr MemoryARGB; /// <summary> /// 패딩 4 /// </summary> [MarshalAsAttribute(UnmanagedType.ByValArray, SizeConst = 2, ArraySubType = UnmanagedType.U4)] private readonly uint[] Padding4; #endregion }; } |
▶ WEBPRGBABuffer.cs
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using System; using System.Runtime.InteropServices; namespace TestProject { /// <summary> /// WEBP RGB 버퍼 /// </summary> [StructLayoutAttribute(LayoutKind.Sequential)] public struct WEBPRGBABuffer { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Public #region Field /// <summary> /// RGBA /// </summary> /// <remarks>RGBA 샘플에 대한 포인터</remarks> public IntPtr RGBA; /// <summary> /// 스트라이드 /// </summary> /// <remarks>한 스캔라인에서 다음 스캔라인으로 바이트 단위로 이동</remarks> public int Stride; /// <summary> /// 크기 /// </summary> /// <remarks>RGBA 버퍼의 총 크기</remarks> public UIntPtr Size; #endregion } } |
▶ WEBPYUVABuffer.cs
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using System; using System.Runtime.InteropServices; namespace TestProject { /// <summary> /// WEBP YUVA 버퍼 /// </summary> [StructLayoutAttribute(LayoutKind.Sequential)] public struct WEBPYUVABuffer { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Public #region Field /// <summary> /// Y /// </summary> /// <remarks>루마 샘플에 대한 포인터</remarks> public IntPtr Y; /// <summary> /// U /// </summary> /// <remarks>크로마 U 샘플에 대한 포인터</remarks> public IntPtr U; /// <summary> /// V /// </summary> /// <remarks>크로마 V 샘플에 대한 포인터</remarks> public IntPtr V; /// <summary> /// A /// </summary> /// <remarks>알파 샘플에 대한 포인터</remarks> public IntPtr A; /// <summary> /// Y 스트라이드 /// </summary> /// <remarks>루마 스트라이드</remarks> public int YStride; /// <summary> /// U 스트라이드 /// </summary> /// <remarks>크로마 U 스트라이드</remarks> public int UStride; /// <summary> /// V 스트라이드 /// </summary> /// <remarks>크로마 V 스트라이드</remarks> public int VStride; /// <summary> /// A 스트라이드 /// </summary> /// <remarks>알파 스트라이드</remarks> public int AStride; /// <summary> /// Y 크기 /// </summary> /// <remarks>루마 평면 크기</remarks> public UIntPtr YSize; /// <summary> /// U 크기 /// </summary> /// <remarks>크로마 평면 U사이즈</remarks> public UIntPtr USize; /// <summary> /// V 크기 /// </summary> /// <remarks>크로마 평면 V사이즈</remarks> public UIntPtr VSize; /// <summary> /// A 크기 /// </summary> /// <remarks>알파 평면 크기</remarks> public UIntPtr ASize; #endregion } } |
▶ WIN32Helper.cs
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using System; using System.Runtime.InteropServices; using System.Security; namespace TestProject { /// <summary> /// WIN32 헬퍼 /// </summary> [SuppressUnmanagedCodeSecurity] public sealed partial class WIN32Helper { //////////////////////////////////////////////////////////////////////////////////////////////////// Delegate ////////////////////////////////////////////////////////////////////////////////////////// Public #region WEBP 메모리 쓰기 대리자 - WEBPMemoryWriteDelegate(dataHandle, dataSize, picture) /// <summary> /// WEBP 메모리 쓰기 대리자 /// </summary> /// <param name="dataHandle">데이터 핸들</param> /// <param name="dataSize">데이터 크기</param> /// <param name="picture">WEBP 픽처</param> /// <returns>처리 결과</returns> [UnmanagedFunctionPointer(CallingConvention.Cdecl)] public delegate int WEBPMemoryWriteDelegate([In()] IntPtr dataHandle, UIntPtr dataSize, ref WEBPPicture picture); #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Import ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region 메모리 복사하기 - CopyMemory(targetHandle, sourceHandle, count) /// <summary> /// 메모리 복사하기 /// </summary> /// <param name="targetHandle">타겟 핸들</param> /// <param name="sourceHandle">소스 핸들</param> /// <param name="count">카운트</param> [DllImport("kernel32", EntryPoint = "CopyMemory", SetLastError = false)] public static extern void CopyMemory(IntPtr targetHandle, IntPtr sourceHandle, uint count); #endregion #region WEBP 구성 초기화하기 (내부용, X86) - WebPConfigInitInternal_x86(configuration, preset, quality, version) /// <summary> /// WEBP 구성 초기화하기 (내부용, X86) /// </summary> /// <param name="configuration">WEBP 구성</param> /// <param name="preset">WEBP 프리셋</param> /// <param name="quality">품질</param> /// <param name="version">버전</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x86", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPConfigInitInternal")] private static extern int WebPConfigInitInternal_x86(ref WEBPConfiguration configuration, WEBPPreset preset, float quality, int version); #endregion #region WEBP 구성 초기화하기 (내부용, X64) - WebPConfigInitInternal_x64(configuration, preset, quality, version) /// <summary> /// WEBP 구성 초기화하기 (내부용, X64) /// </summary> /// <param name="configuration">WEBP 구성</param> /// <param name="preset">WEBP 프리셋</param> /// <param name="quality">품질</param> /// <param name="version">버전</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x64", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPConfigInitInternal")] private static extern int WebPConfigInitInternal_x64(ref WEBPConfiguration configuration, WEBPPreset preset, float quality, int version); #endregion #region WEBP 특징 구하기 (내부용, X86) - WebPGetFeaturesInternal_x86(dataHandle, dataSize, features, version) /// <summary> /// WEBP 특징 구하기 (내부용, X86) /// </summary> /// <param name="dataHandle">데이터 핸들</param> /// <param name="dataSize">데이터 크기</param> /// <param name="features">특징</param> /// <param name="version">버전</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x86", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPGetFeaturesInternal")] private static extern VP8StatusCode WebPGetFeaturesInternal_x86 ( [InAttribute()] IntPtr dataHandle, UIntPtr dataSize, ref WEBPBitStreamFeatures features, int version ); #endregion #region WEBP 특징 구하기 (내부용, X64) - WebPGetFeaturesInternal_x64(dataHandle, dataSize, features, version) /// <summary> /// WEBP 특징 구하기 (내부용, X64) /// </summary> /// <param name="dataHandle">데이터 핸들</param> /// <param name="dataSize">데이터 크기</param> /// <param name="features">특징</param> /// <param name="version">버전</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x64", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPGetFeaturesInternal")] private static extern VP8StatusCode WebPGetFeaturesInternal_x64 ( [InAttribute()] IntPtr rawHandle, UIntPtr dataSize, ref WEBPBitStreamFeatures features, int version ); #endregion #region WEBP 무손실 프리셋 구성하기 (X86) - WebPConfigLosslessPreset_x86(configuration, level) /// <summary> /// WEBP 무손실 프리셋 구성하기 (X86) /// </summary> /// <param name="configuration">WEBP 구성</param> /// <param name="level">레벨</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x86", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPConfigLosslessPreset")] private static extern int WebPConfigLosslessPreset_x86(ref WEBPConfiguration configuration, int level); #endregion #region WEBP 무손실 프리셋 구성하기 (X64) - WebPConfigLosslessPreset_x64(configuration, level) /// <summary> /// WEBP 무손실 프리셋 구성하기 (X64) /// </summary> /// <param name="configuration">WEBP 구성</param> /// <param name="level">레벨</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x64", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPConfigLosslessPreset")] private static extern int WebPConfigLosslessPreset_x64(ref WEBPConfiguration configuration, int level); #endregion #region WEBP 구성 검증하기 (X86) - WebPValidateConfig_x86(configuration) /// <summary> /// WEBP 구성 검증하기 (X86) /// </summary> /// <param name="configuration">구성</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x86", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPValidateConfig")] private static extern int WebPValidateConfig_x86(ref WEBPConfiguration configuration); #endregion #region WEBP 구성 검증하기 (X64) - WebPValidateConfig_x64(configuration) /// <summary> /// WEBP 구성 검증하기 (X64) /// </summary> /// <param name="configuration">구성</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x64", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPValidateConfig")] private static extern int WebPValidateConfig_x64(ref WEBPConfiguration configuration); #endregion #region WEBP 픽처 초기화하기 (내부용, X86) - WebPPictureInitInternal_x86(picture, version) /// <summary> /// WEBP 픽처 초기화하기 (내부용, X86) /// </summary> /// <param name="picture">WEBP 픽처</param> /// <param name="version">버전</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x86", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPPictureInitInternal")] private static extern int WebPPictureInitInternal_x86(ref WEBPPicture picture, int version); #endregion #region WEBP 픽처 초기화하기 (내부용, X64) - WebPPictureInitInternal_x64(picture, version) /// <summary> /// WEBP 픽처 초기화하기 (내부용, X64) /// </summary> /// <param name="picture">WEBP 픽처</param> /// <param name="version">버전</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x64", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPPictureInitInternal")] private static extern int WebPPictureInitInternal_x64(ref WEBPPicture picture, int version); #endregion #region WEBP 픽처 BGR 가져오기 (X86) - WebPPictureImportBGR_x86(picture, bgr, stride) /// <summary> /// WEBP 픽처 BGR 가져오기 (X86) /// </summary> /// <param name="picture">WEBP 픽처</param> /// <param name="bgr">BGR</param> /// <param name="stride">스트라이드</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x86", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPPictureImportBGR")] private static extern int WebPPictureImportBGR_x86(ref WEBPPicture picture, IntPtr bgr, int stride); #endregion #region WEBP 픽처 BGR 가져오기 (X64) - WebPPictureImportBGR_x64(picture, bgr, stride) /// <summary> /// WEBP 픽처 BGR 가져오기 (X64) /// </summary> /// <param name="picture">WEBP 픽처</param> /// <param name="bgr">BGR</param> /// <param name="stride">스트라이드</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x64", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPPictureImportBGR")] private static extern int WebPPictureImportBGR_x64(ref WEBPPicture picture, IntPtr bgr, int stride); #endregion #region WEBP 픽처 BGRA 가져오기 (X86) - WebPPictureImportBGRA_x86(picture, bgra, stride) /// <summary> /// WEBP 픽처 BGRA 가져오기 (X86) /// </summary> /// <param name="picture">WEBP 픽처</param> /// <param name="bgra">BGRA</param> /// <param name="stride">스트라이드</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x86", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPPictureImportBGRA")] private static extern int WebPPictureImportBGRA_x86(ref WEBPPicture picture, IntPtr bgra, int stride); #endregion #region WEBP 픽처 BGRA 가져오기 (X64) - WebPPictureImportBGRA_x64(picture, bgra, stride) /// <summary> /// WEBP 픽처 BGRA 가져오기 (X64) /// </summary> /// <param name="picture">WEBP 픽처</param> /// <param name="bgra">BGRA</param> /// <param name="stride">스트라이드</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x64", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPPictureImportBGRA")] private static extern int WebPPictureImportBGRA_x64(ref WEBPPicture picture, IntPtr bgra, int stride); #endregion #region WEBP 픽처 BGRX 가져오기 (X86) - WebPPictureImportBGRX_x86(picture, bgr, stride) /// <summary> /// WEBP 픽처 BGRX 가져오기 (X86) /// </summary> /// <param name="picture">WEBP 픽처</param> /// <param name="bgr">BGR</param> /// <param name="stride">스트라이드</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x86", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPPictureImportBGRX")] private static extern int WebPPictureImportBGRX_x86(ref WEBPPicture picture, IntPtr bgr, int stride); #endregion #region WEBP 픽처 BGRX 가져오기 (X64) - WebPPictureImportBGRX_x64(picture, bgr, stride) /// <summary> /// WEBP 픽처 BGRX 가져오기 (X64) /// </summary> /// <param name="picture">WEBP 픽처</param> /// <param name="bgr">BGR</param> /// <param name="stride">스트라이드</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x64", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPPictureImportBGRX")] private static extern int WebPPictureImportBGRX_x64(ref WEBPPicture picture, IntPtr bgr, int stride); #endregion #region WEBP 인코딩하기 (X86) - WebPEncode_x86(configuration, picture) /// <summary> /// WEBP 인코딩하기 (X86) /// </summary> /// <param name="configuration">WEBP 구성</param> /// <param name="picture">WEBP 픽처</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x86", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPEncode")] private static extern int WebPEncode_x86(ref WEBPConfiguration configuration, ref WEBPPicture picture); #endregion #region WEBP 인코딩하기 (X64) - WebPEncode_x64(configuration, picture) /// <summary> /// WEBP 인코딩하기 (X64) /// </summary> /// <param name="configuration">WEBP 구성</param> /// <param name="picture">WEBP 픽처</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x64", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPEncode")] private static extern int WebPEncode_x64(ref WEBPConfiguration configuration, ref WEBPPicture picture); #endregion #region WEBP 픽처 해제하기 (X86) - WebPPictureFree_x86(picture) /// <summary> /// WEBP 픽처 해제하기 (X86) /// </summary> /// <param name="picture">WEBP 픽처</param> [DllImport("libwebp_x86", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPPictureFree")] private static extern void WebPPictureFree_x86(ref WEBPPicture picture); #endregion #region WEBP 픽처 해제하기 (X64) - WebPPictureFree_x64(picture) /// <summary> /// WEBP 픽처 해제하기 (X64) /// </summary> /// <param name="picture">WEBP 픽처</param> [DllImport("libwebp_x64", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPPictureFree")] private static extern void WebPPictureFree_x64(ref WEBPPicture picture); #endregion #region WEBP 정보 구하기 (X86) - WebPGetInfo_x86(dataHandle, dataSize, width, height) /// <summary> /// WEBP 정보 구하기 (X86) /// </summary> /// <param name="dataHandle">데이터 핸들</param> /// <param name="dataSize">데이터 크기</param> /// <param name="width">너비</param> /// <param name="height">높이</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x86", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPGetInfo")] private static extern int WebPGetInfo_x86([InAttribute()] IntPtr dataHandle, UIntPtr dataSize, out int width, out int height); #endregion #region WEBP 정보 구하기 (X64) - WebPGetInfo_x64(dataHandle, dataSize, width, height) /// <summary> /// WEBP 정보 구하기 (X64) /// </summary> /// <param name="dataHandle">데이터 핸들</param> /// <param name="dataSize">데이터 크기</param> /// <param name="width">너비</param> /// <param name="height">높이</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x64", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPGetInfo")] private static extern int WebPGetInfo_x64([InAttribute()] IntPtr dataHandle, UIntPtr dataSize, out int width, out int height); #endregion #region WEBP BGR 디코딩하기 (X86) - WebPDecodeBGRInto_x86(dataHandle, dataSize, bufferHandle, bufferSize, stride) /// <summary> /// WEBP BGR 디코딩하기 (X86) /// </summary> /// <param name="dataHandle">데이터 핸들</param> /// <param name="dataSize">데이터 크기</param> /// <param name="bufferHandle">버퍼 핸들</param> /// <param name="bufferSize">버퍼 크기</param> /// <param name="stride">스트라이드</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x86", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPDecodeBGRInto")] private static extern IntPtr WebPDecodeBGRInto_x86([InAttribute()] IntPtr dataHandle, UIntPtr dataSize, IntPtr bufferHandle, int bufferSize, int stride); #endregion #region WEBP BGR 디코딩하기 (X64) - WebPDecodeBGRInto_x64(dataHandle, dataSize, bufferHandle, bufferSize, stride) /// <summary> /// WEBP BGR 디코딩하기 (X64) /// </summary> /// <param name="dataHandle">데이터 핸들</param> /// <param name="dataSize">데이터 크기</param> /// <param name="bufferHandle">버퍼 핸들</param> /// <param name="bufferSize">버퍼 크기</param> /// <param name="stride">스트라이드</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x64", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPDecodeBGRInto")] private static extern IntPtr WebPDecodeBGRInto_x64([InAttribute()] IntPtr dataHandle, UIntPtr dataSize, IntPtr bufferHandle, int bufferSize, int stride); #endregion #region WEBP BGRA 디코딩하기 (X86) - WebPDecodeBGRAInto_x86(dataHandle, dataSize, bufferHandle, bufferSize, stride) /// <summary> /// WEBP BGRA 디코딩하기 (X86) /// </summary> /// <param name="dataHandle">데이터 핸들</param> /// <param name="dataSize">데이터 크기</param> /// <param name="bufferHandle">버퍼 핸들</param> /// <param name="bufferSize">버퍼 크기</param> /// <param name="stride">스트라이드</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x86", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPDecodeBGRAInto")] private static extern IntPtr WebPDecodeBGRAInto_x86([InAttribute()] IntPtr dataHandle, UIntPtr dataSize, IntPtr bufferHandle, int bufferSize, int stride); #endregion #region WEBP BGRA 디코딩하기 (X64) - WebPDecodeBGRAInto_x64(dataHandle, dataSize, bufferHandle, bufferSize, stride) /// <summary> /// WEBP BGRA 디코딩하기 (X64) /// </summary> /// <param name="dataHandle">데이터 핸들</param> /// <param name="dataSize">데이터 크기</param> /// <param name="bufferHandle">버퍼 핸들</param> /// <param name="bufferSize">버퍼 크기</param> /// <param name="stride">스트라이드</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x64", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPDecodeBGRAInto")] private static extern IntPtr WebPDecodeBGRAInto_x64([InAttribute()] IntPtr dataHandle, UIntPtr dataSize, IntPtr bufferHandle, int bufferSize, int stride); #endregion #region WEBP ARGB 디코딩하기 (X86) - WebPDecodeARGBInto_x86(dataHandle, dataSize, bufferHandle, bufferSize, stride) /// <summary> /// WEBP ARGB 디코딩하기 (X86) /// </summary> /// <param name="dataHandle">데이터 핸들</param> /// <param name="dataSize">데이터 크기</param> /// <param name="bufferHandle">버퍼 핸들</param> /// <param name="bufferSize">버퍼 크기</param> /// <param name="stride">스트라이드</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x86", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPDecodeARGBInto")] private static extern IntPtr WebPDecodeARGBInto_x86([InAttribute()] IntPtr dataHandle, UIntPtr dataSize, IntPtr bufferHandle, int bufferSize, int stride); #endregion #region WEBP ARGB 디코딩하기 (X64) - WebPDecodeARGBInto_x64(dataHandle, dataSize, bufferHandle, bufferSize, stride) /// <summary> /// WEBP ARGB 디코딩하기 (X64) /// </summary> /// <param name="dataHandle">데이터 핸들</param> /// <param name="dataSize">데이터 크기</param> /// <param name="bufferHandle">버퍼 핸들</param> /// <param name="bufferSize">버퍼 크기</param> /// <param name="stride">스트라이드</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x64", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPDecodeARGBInto")] private static extern IntPtr WebPDecodeARGBInto_x64([InAttribute()] IntPtr data, UIntPtr data_size, IntPtr bufferHandle, int bufferSize, int stride); #endregion #region WEBP 디코더 구성 초기화하기 (X86) - WebPInitDecoderConfigInternal_x86(configuration, version) /// <summary> /// WEBP 디코더 구성 초기화하기 (X86) /// </summary> /// <param name="configuration">WEBP 디코더 구성</param> /// <param name="version">버전</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x86", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPInitDecoderConfigInternal")] private static extern int WebPInitDecoderConfigInternal_x86(ref WEBPDecoderConfiguration configuration, int version); #endregion #region WEBP 디코더 구성 초기화하기 (X64) - WebPInitDecoderConfigInternal_x64(configuration, version) /// <summary> /// WEBP 디코더 구성 초기화하기 (X64) /// </summary> /// <param name="configuration">WEBP 디코더 구성</param> /// <param name="version">버전</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x64", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPInitDecoderConfigInternal")] private static extern int WebPInitDecoderConfigInternal_x64(ref WEBPDecoderConfiguration configuration, int version); #endregion #region WEBP 디코딩하기 (X86) - WebPDecode_x86(dataHandle, dataSize, configuration) /// <summary> /// WEBP 디코딩하기 (X86) /// </summary> /// <param name="dataHandle">데이터 핸들</param> /// <param name="dataSize">데이터 크기</param> /// <param name="configuration">WEBP 디코더 구성</param> /// <returns>상태 코드</returns> [DllImport("libwebp_x86", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPDecode")] private static extern VP8StatusCode WebPDecode_x86(IntPtr dataHandle, UIntPtr dataSize, ref WEBPDecoderConfiguration configuration); #endregion #region WEBP 디코딩하기 (X64) - WebPDecode_x64(dataHandle, dataSize, configuration) /// <summary> /// WEBP 디코딩하기 (X64) /// </summary> /// <param name="dataHandle">데이터 핸들</param> /// <param name="dataSize">데이터 크기</param> /// <param name="configuration">WEBP 디코더 구성</param> /// <returns>상태 코드</returns> [DllImport("libwebp_x64", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPDecode")] private static extern VP8StatusCode WebPDecode_x64(IntPtr dataHandle, UIntPtr dataSize, ref WEBPDecoderConfiguration configuration); #endregion #region WEBP 디코더 버퍼 해제하기 (X86) - WebPFreeDecBuffer_x86(buffer) /// <summary> /// WEBP 디코더 버퍼 해제하기 (X86) /// </summary> /// <param name="buffer">WEBP 디코더 버퍼</param> [DllImport("libwebp_x86", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPFreeDecBuffer")] private static extern void WebPFreeDecBuffer_x86(ref WEBPDecoderBuffer buffer); #endregion #region WEBP 디코더 버퍼 해제하기 (X64) - WebPFreeDecBuffer_x64(buffer) /// <summary> /// WEBP 디코더 버퍼 해제하기 (X64) /// </summary> /// <param name="buffer">WEBP 디코더 버퍼</param> [DllImport("libwebp_x64", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPFreeDecBuffer")] private static extern void WebPFreeDecBuffer_x64(ref WEBPDecoderBuffer buffer); #endregion #region WEBP BGR 인코딩하기 (X86) - WebPEncodeBGR_x86(bgrHandle, width, height, stride, qualityFactor, outputHandle) /// <summary> /// WEBP BGR 인코딩하기 (X86) /// </summary> /// <param name="bgrHandle">BGR 핸들</param> /// <param name="width">너비</param> /// <param name="height">높이</param> /// <param name="stride">스트라이드</param> /// <param name="qualityFactor">품질 인자</param> /// <param name="outputHandle">출력 핸들</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x86", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPEncodeBGR")] private static extern int WebPEncodeBGR_x86([InAttribute()] IntPtr bgrHandle, int width, int height, int stride, float qualityFactor, out IntPtr outputHandle); #endregion #region WEBP BGR 인코딩하기 (X64) - WebPEncodeBGR_x64(bgrHandle, width, height, stride, qualityFactor, outputHandle) /// <summary> /// WEBP BGR 인코딩하기 (X64) /// </summary> /// <param name="bgrHandle">BGR 핸들</param> /// <param name="width">너비</param> /// <param name="height">높이</param> /// <param name="stride">스트라이드</param> /// <param name="qualityFactor">품질 인자</param> /// <param name="outputHandle">출력 핸들</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x64", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPEncodeBGR")] private static extern int WebPEncodeBGR_x64([InAttribute()] IntPtr bgrHandle, int width, int height, int stride, float qualityFactor, out IntPtr outputHandle); #endregion #region WEBP BGRA 인코딩하기 (X86) - WebPEncodeBGRA_x86(bgraHandle, width, height, stride, qualityFactor, outputHandle) /// <summary> /// WEBP BGRA 인코딩하기 (X86) /// </summary> /// <param name="bgraHandle">BGRA 핸들</param> /// <param name="width">너비</param> /// <param name="height">높이</param> /// <param name="stride">스트라이드</param> /// <param name="qualityFactor">품질 인자</param> /// <param name="outputHandle">출력 핸들</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x86", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPEncodeBGRA")] private static extern int WebPEncodeBGRA_x86([InAttribute()] IntPtr bgraHandle, int width, int height, int stride, float qualityFactor, out IntPtr outputHandle); #endregion #region WEBP BGRA 인코딩하기 (X64) - WebPEncodeBGRA_x64(bgraHandle, width, height, stride, qualityFactor, outputHandle) /// <summary> /// WEBP BGRA 인코딩하기 (X64) /// </summary> /// <param name="bgraHandle">BGRA 핸들</param> /// <param name="width">너비</param> /// <param name="height">높이</param> /// <param name="stride">스트라이드</param> /// <param name="qualityFactor">품질 인자</param> /// <param name="outputHandle">출력 핸들</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x64", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPEncodeBGRA")] private static extern int WebPEncodeBGRA_x64([InAttribute()] IntPtr bgraHandle, int width, int height, int stride, float qualityFactor, out IntPtr outputHandle); #endregion #region WEBP BGR 무손실 인코딩하기 (X86) - WebPEncodeLosslessBGR_x86(bgrHandle, width, height, stride, outputHandle) /// <summary> /// WEBP BGR 무손실 인코딩하기 (X86) /// </summary> /// <param name="bgrHandle">BGR 핸들</param> /// <param name="width">너비</param> /// <param name="height">높이</param> /// <param name="stride">스트라이드</param> /// <param name="outputHandle">출력 핸들</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x86", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPEncodeLosslessBGR")] private static extern int WebPEncodeLosslessBGR_x86([InAttribute()] IntPtr bgrHandle, int width, int height, int stride, out IntPtr outputHandle); #endregion #region WEBP BGR 무손실 인코딩하기 (X64) - WebPEncodeLosslessBGR_x64(bgrHandle, width, height, stride, outputHandle) /// <summary> /// WEBP BGR 무손실 인코딩하기 (X64) /// </summary> /// <param name="bgrHandle">BGR 핸들</param> /// <param name="width">너비</param> /// <param name="height">높이</param> /// <param name="stride">스트라이드</param> /// <param name="outputHandle">출력 핸들</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x64", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPEncodeLosslessBGR")] private static extern int WebPEncodeLosslessBGR_x64([InAttribute()] IntPtr bgrHandle, int width, int height, int stride, out IntPtr outputHandle); #endregion #region WEBP BGRA 무손실 인코딩하기 (X86) - WebPEncodeLosslessBGRA_x86(bgraHandle, width, height, stride, outputHandle) /// <summary> /// WEBP BGRA 무손실 인코딩하기 (X86) /// </summary> /// <param name="bgraHandle">BGRA 핸들</param> /// <param name="width">너비</param> /// <param name="height">높이</param> /// <param name="stride">스트라이드</param> /// <param name="outputHandle">출력 핸들</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x86", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPEncodeLosslessBGRA")] private static extern int WebPEncodeLosslessBGRA_x86([InAttribute()] IntPtr bgraHandle, int width, int height, int stride, out IntPtr outputHandle); #endregion #region WEBP BGRA 무손실 인코딩하기 (X64) - WebPEncodeLosslessBGRA_x64(bgraHandle, width, height, stride, outputHandle) /// <summary> /// WEBP BGRA 무손실 인코딩하기 (X64) /// </summary> /// <param name="bgraHandle">BGRA 핸들</param> /// <param name="width">너비</param> /// <param name="height">높이</param> /// <param name="stride">스트라이드</param> /// <param name="outputHandle">출력 핸들</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x64", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPEncodeLosslessBGRA")] private static extern int WebPEncodeLosslessBGRA_x64([InAttribute()] IntPtr bgraHandle, int width, int height, int stride, out IntPtr outputHandle); #endregion #region WEBP 해제하기 (X86) - WebPFree_x86(handle) /// <summary> /// WEBP 해제하기 (X86) /// </summary> /// <param name="handle">핸들</param> [DllImport("libwebp_x86", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPFree")] private static extern void WebPFree_x86(IntPtr handle); #endregion #region WEBP 해제하기 (X64) - WebPFree_x64(handle) /// <summary> /// WEBP 해제하기 (X64) /// </summary> /// <param name="handle">핸들</param> [DllImport("libwebp_x64", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPFree")] private static extern void WebPFree_x64(IntPtr handle); #endregion #region WEBP 디코더 버전 구하기 (X86) - WebPGetDecoderVersion_x86() /// <summary> /// WEBP 디코더 버전 구하기 (X86) /// </summary> /// <returns>WEBP 디코더 버전</returns> [DllImport("libwebp_x86", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPGetDecoderVersion")] private static extern int WebPGetDecoderVersion_x86(); #endregion #region WEBP 디코더 버전 구하기 (X64) - WebPGetDecoderVersion_x64() /// <summary> /// WEBP 디코더 버전 구하기 (X64) /// </summary> /// <returns>WEBP 디코더 버전</returns> [DllImport("libwebp_x64", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPGetDecoderVersion")] private static extern int WebPGetDecoderVersion_x64(); #endregion #region WEBP 픽처 왜곡 구하기 (X86) - WebPPictureDistortion_x86(sourcePicture, targetPicture, metricType, resultHandle) /// <summary> /// WEBP 픽처 왜곡 구하기 (X86) /// </summary> /// <param name="sourcePicture">소스 픽처</param> /// <param name="targetPicture">타겟 픽처</param> /// <param name="metricType">미터법 타입</param> /// <param name="resultHandle">결과 핸들</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x86", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPPictureDistortion")] private static extern int WebPPictureDistortion_x86(ref WEBPPicture sourcePicture, ref WEBPPicture targetPicture, int metricType, IntPtr resultHandle); #endregion #region WEBP 픽처 왜곡 구하기 (X64) - WebPPictureDistortion_x64(sourcePicture, targetPicture, metricType, resultHandle) /// <summary> /// WEBP 픽처 왜곡 구하기 (X64) /// </summary> /// <param name="sourcePicture">소스 픽처</param> /// <param name="targetPicture">타겟 픽처</param> /// <param name="metricType">미터법 타입</param> /// <param name="resultHandle">결과 핸들</param> /// <returns>처리 결과</returns> [DllImport("libwebp_x64", CallingConvention = CallingConvention.Cdecl, EntryPoint = "WebPPictureDistortion")] private static extern int WebPPictureDistortion_x64(ref WEBPPicture sourcePicture, ref WEBPPicture targetPicture, int metricType, IntPtr resultHandle); #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region Field /// <summary> /// 메모리 쓰기 대리자 /// </summary> public static WEBPMemoryWriteDelegate memoryWriteDelegate; #endregion //////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// WEBP 디코더 ABI 버전 /// </summary> private static readonly int WEBP_DECODER_ABI_VERSION = 0x0208; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region WEBP 구성 초기화하기 - WEBPInitializeConfiguration(configuration, preset, quality) /// <summary> /// WEBP 구성 초기화하기 /// </summary> /// <param name="configuration">WEBP 구성</param> /// <param name="preset">WEBP 프리셋</param> /// <param name="quality">품질</param> /// <returns>처리 결과</returns> public static int WEBPInitializeConfiguration(ref WEBPConfiguration configuration, WEBPPreset preset, float quality) { switch(IntPtr.Size) { case 4 : return WebPConfigInitInternal_x86(ref configuration, preset, quality, WEBP_DECODER_ABI_VERSION); case 8 : return WebPConfigInitInternal_x64(ref configuration, preset, quality, WEBP_DECODER_ABI_VERSION); default : throw new InvalidOperationException("Invalid platform. Can not find proper function"); } } #endregion #region WEBP 특징 구하기 - WEBPGetFeatures(dataHandle, dataSize, features) /// <summary> /// WEBP 특징 구하기 /// </summary> /// <param name="dataHandle">데이터 핸들</param> /// <param name="dataSize">데이터 크기</param> /// <param name="features">특징</param> /// <returns>처리 결과</returns> public static VP8StatusCode WEBPGetFeatures(IntPtr dataHandle, int dataSize, ref WEBPBitStreamFeatures features) { switch(IntPtr.Size) { case 4 : return WebPGetFeaturesInternal_x86(dataHandle, (UIntPtr)dataSize, ref features, WEBP_DECODER_ABI_VERSION); case 8 : return WebPGetFeaturesInternal_x64(dataHandle, (UIntPtr)dataSize, ref features, WEBP_DECODER_ABI_VERSION); default : throw new InvalidOperationException("Invalid platform. Can not find proper function"); } } #endregion #region WEBP 무손실 프리셋 구성하기 - WEBPConfigLosslessPreset(configuration, level) /// <summary> /// WEBP 무손실 프리셋 구성하기 /// </summary> /// <param name="configuration">구성</param> /// <param name="level">레벨</param> /// <returns>처리 결과</returns> public static int WEBPConfigLosslessPreset(ref WEBPConfiguration configuration, int level) { switch (IntPtr.Size) { case 4 : return WebPConfigLosslessPreset_x86(ref configuration, level); case 8 : return WebPConfigLosslessPreset_x64(ref configuration, level); default : throw new InvalidOperationException("Invalid platform. Can not find proper function"); } } #endregion #region WEBP 구성 검증하기 - WEBPValidateConfiguration(configuration) /// <summary> /// WEBP 구성 검증하기 /// </summary> /// <param name="configuration">구성</param> /// <returns>처리 결과</returns> public static int WEBPValidateConfiguration(ref WEBPConfiguration configuration) { switch(IntPtr.Size) { case 4 : return WebPValidateConfig_x86(ref configuration); case 8 : return WebPValidateConfig_x64(ref configuration); default : throw new InvalidOperationException("Invalid platform. Can not find proper function"); } } #endregion #region WEBP 픽처 초기화하기 (내부용) - WEBPInitializePictureInternal(picture) /// <summary> /// WEBP 픽처 초기화하기 (내부용) /// </summary> /// <param name="picture">WEBP 픽처</param> /// <returns>처리 결과</returns> public static int WEBPInitializePictureInternal(ref WEBPPicture picture) { switch(IntPtr.Size) { case 4 : return WebPPictureInitInternal_x86(ref picture, WEBP_DECODER_ABI_VERSION); case 8 : return WebPPictureInitInternal_x64(ref picture, WEBP_DECODER_ABI_VERSION); default : throw new InvalidOperationException("Invalid platform. Can not find proper function"); } } #endregion #region WEBP 픽처 RGB 가져오기 - WEBPPictureImportBGR(picture, bgr, stride) /// <summary> /// WEBP 픽처 RGB 가져오기 /// </summary> /// <param name="picture">WEBP 픽처</param> /// <param name="bgr">BGR</param> /// <param name="stride">스트라이드</param> /// <returns>처리 결과</returns> public static int WEBPPictureImportBGR(ref WEBPPicture picture, IntPtr bgr, int stride) { switch(IntPtr.Size) { case 4 : return WebPPictureImportBGR_x86(ref picture, bgr, stride); case 8 : return WebPPictureImportBGR_x64(ref picture, bgr, stride); default : throw new InvalidOperationException("Invalid platform. Can not find proper function"); } } #endregion #region WEBP 픽처 BGRA 가져오기 - WEBPPictureImportBGRA(picture, bgra, stride) /// <summary> /// WEBP 픽처 BGRA 가져오기 /// </summary> /// <param name="picture">WEBP 픽처</param> /// <param name="bgra">BGRA</param> /// <param name="stride">스트라이드</param> /// <returns>처리 결과</returns> public static int WEBPPictureImportBGRA(ref WEBPPicture picture, IntPtr bgra, int stride) { switch(IntPtr.Size) { case 4 : return WebPPictureImportBGRA_x86(ref picture, bgra, stride); case 8 : return WebPPictureImportBGRA_x64(ref picture, bgra, stride); default : throw new InvalidOperationException("Invalid platform. Can not find proper function"); } } #endregion #region WEBP 픽처 BGRX 가져오기 - WEBPPictureImportBGRX(picture, bgr, stride) /// <summary> /// WEBP 픽처 BGRX 가져오기 /// </summary> /// <param name="picture">WEBP 픽처</param> /// <param name="bgr">BGR</param> /// <param name="stride">스트라이드</param> /// <returns>처리 결과</returns> public static int WEBPPictureImportBGRX(ref WEBPPicture picture, IntPtr bgr, int stride) { switch(IntPtr.Size) { case 4 : return WebPPictureImportBGRX_x86(ref picture, bgr, stride); case 8 : return WebPPictureImportBGRX_x64(ref picture, bgr, stride); default : throw new InvalidOperationException("Invalid platform. Can not find proper function"); } } #endregion #region WEBP 인코딩하기 - WEBPEncode(configuration, picture) /// <summary> /// WEBP 인코딩하기 /// </summary> /// <param name="configuration">WEBP 구성</param> /// <param name="picture">WEBP 픽처</param> /// <returns>처리 결과</returns> /// <exception cref="InvalidOperationException"></exception> public static int WEBPEncode(ref WEBPConfiguration configuration, ref WEBPPicture picture) { switch(IntPtr.Size) { case 4 : return WebPEncode_x86(ref configuration, ref picture); case 8 : return WebPEncode_x64(ref configuration, ref picture); default : throw new InvalidOperationException("Invalid platform. Can not find proper function"); } } #endregion #region WEBP 픽처 해제하기 - WEBPPictureFree(picture) /// <summary> /// WEBP 픽처 해제하기 /// </summary> /// <param name="picture">WEBP 픽처</param> public static void WEBPPictureFree(ref WEBPPicture picture) { switch(IntPtr.Size) { case 4 : WebPPictureFree_x86(ref picture); break; case 8 : WebPPictureFree_x64(ref picture); break; default : throw new InvalidOperationException("Invalid platform. Can not find proper function"); } } #endregion #region WEBP 정보 구하기 - WEBPGetInformation(dataHandle, dataSize, width, height) /// <summary> /// WEBP 정보 구하기 /// </summary> /// <param name="dataHandle">데이터 핸들</param> /// <param name="dataSize">데이터 크기</param> /// <param name="width">너비</param> /// <param name="height">높이</param> /// <returns>처리 결과</returns> /// <exception cref="InvalidOperationException"></exception> public static int WEBPGetInformation(IntPtr dataHandle, int dataSize, out int width, out int height) { switch(IntPtr.Size) { case 4 : return WebPGetInfo_x86(dataHandle, (UIntPtr)dataSize, out width, out height); case 8 : return WebPGetInfo_x64(dataHandle, (UIntPtr)dataSize, out width, out height); default : throw new InvalidOperationException("Invalid platform. Can not find proper function"); } } #endregion #region WEBP BGR 디코딩하기 - WebPDecodeBGRInto(dataHandle, dataSize, bufferHandle, bufferSize, stride) /// <summary> /// WEBP BGR 디코딩하기 /// </summary> /// <param name="dataHandle">데이터 핸들</param> /// <param name="dataSize">데이터 크기</param> /// <param name="bufferHandle">버퍼 핸들</param> /// <param name="bufferSize">버퍼 크기</param> /// <param name="stride">스트라이드</param> /// <exception cref="InvalidOperationException"></exception> public static void WebPDecodeBGRInto(IntPtr dataHandle, int dataSize, IntPtr bufferHandle, int bufferSize, int stride) { switch(IntPtr.Size) { case 4 : if(WebPDecodeBGRInto_x86(dataHandle, (UIntPtr)dataSize, bufferHandle, bufferSize, stride) == null) { throw new InvalidOperationException("Can not decode WebP"); } break; case 8 : if(WebPDecodeBGRInto_x64(dataHandle, (UIntPtr)dataSize, bufferHandle, bufferSize, stride) == null) { throw new InvalidOperationException("Can not decode WebP"); } break; default : throw new InvalidOperationException("Invalid platform. Can not find proper function"); } } #endregion #region WEBP BGRA 디코딩하기 - WEBPDecodeBGRAInto(dataHandle, dataSize, bufferHandle, bufferSize, stride) /// <summary> /// WEBP BGRA 디코딩하기 /// </summary> /// <param name="dataHandle">데이터 핸들</param> /// <param name="dataSize">데이터 크기</param> /// <param name="bufferHandle">버퍼 핸들</param> /// <param name="bufferSize">버퍼 크기</param> /// <param name="stride">스트라이드</param> public static void WEBPDecodeBGRAInto(IntPtr dataHandle, int dataSize, IntPtr bufferHandle, int bufferSize, int stride) { switch(IntPtr.Size) { case 4 : if(WebPDecodeBGRAInto_x86(dataHandle, (UIntPtr)dataSize, bufferHandle, bufferSize, stride) == null) { throw new InvalidOperationException("Can not decode WebP"); } break; case 8 : if(WebPDecodeBGRAInto_x64(dataHandle, (UIntPtr)dataSize, bufferHandle, bufferSize, stride) == null) { throw new InvalidOperationException("Can not decode WebP"); } break; default : throw new InvalidOperationException("Invalid platform. Can not find proper function"); } } #endregion #region WEBP ARGB 디코딩하기 - WEBPDecodeARGBInto(dataHandle, dataSize, bufferHandle, bufferSize, stride) /// <summary> /// WEBP ARGB 디코딩하기 /// </summary> /// <param name="dataHandle">데이터 핸들</param> /// <param name="dataSize">데이터 크기</param> /// <param name="bufferHandle">버퍼 핸들</param> /// <param name="bufferSize">버퍼 크기</param> /// <param name="stride">스트라이드</param> public static void WEBPDecodeARGBInto(IntPtr dataHandle, int dataSize, IntPtr bufferHandle, int bufferSize, int stride) { switch(IntPtr.Size) { case 4 : if(WebPDecodeARGBInto_x86(dataHandle, (UIntPtr)dataSize, bufferHandle, bufferSize, stride) == null) { throw new InvalidOperationException("Can not decode WebP"); } break; case 8 : if(WebPDecodeARGBInto_x64(dataHandle, (UIntPtr)dataSize, bufferHandle, bufferSize, stride) == null) { throw new InvalidOperationException("Can not decode WebP"); } break; default : throw new InvalidOperationException("Invalid platform. Can not find proper function"); } } #endregion #region WEBP 디코더 구성 초기화하기 - WEBPInitializeDecoderConfiguration(configuration) /// <summary> /// WEBP 디코더 구성 초기화하기 /// </summary> /// <param name="configuration">WEBP 디코더 구성</param> /// <returns>처리 결과</returns> public static int WEBPInitializeDecoderConfiguration(ref WEBPDecoderConfiguration configuration) { switch(IntPtr.Size) { case 4 : return WebPInitDecoderConfigInternal_x86(ref configuration, WEBP_DECODER_ABI_VERSION); case 8 : return WebPInitDecoderConfigInternal_x64(ref configuration, WEBP_DECODER_ABI_VERSION); default : throw new InvalidOperationException("Invalid platform. Can not find proper function"); } } #endregion #region WEBP 디코딩하기 - WEBPDecode(dataHandle, dataSize, configuration) /// <summary> /// WEBP 디코딩하기 /// </summary> /// <param name="dataHandle">데이터 핸들</param> /// <param name="dataSize">데이터 크기</param> /// <param name="configuration">WEBP 디코더 구성</param> /// <returns>상태 코드</returns> public static VP8StatusCode WEBPDecode(IntPtr dataHandle, int dataSize, ref WEBPDecoderConfiguration configuration) { switch(IntPtr.Size) { case 4 : return WebPDecode_x86(dataHandle, (UIntPtr)dataSize, ref configuration); case 8 : return WebPDecode_x64(dataHandle, (UIntPtr)dataSize, ref configuration); default : throw new InvalidOperationException("Invalid platform. Can not find proper function"); } } #endregion #region WEBP 디코더 버퍼 해제하기 - WEBPFreeDecoderBuffer(buffer) /// <summary> /// WEBP 디코더 버퍼 해제하기 /// </summary> /// <param name="buffer">WEBP 디코더 버퍼</param> public static void WEBPFreeDecoderBuffer(ref WEBPDecoderBuffer buffer) { switch(IntPtr.Size) { case 4 : WebPFreeDecBuffer_x86(ref buffer); break; case 8 : WebPFreeDecBuffer_x64(ref buffer); break; default : throw new InvalidOperationException("Invalid platform. Can not find proper function"); } } #endregion #region WEBP BGR 인코딩하기 - WEBPEncodeBGR(bgrHandle, width, height, stride, qualityFactor, outputHandle) /// <summary> /// WEBP BGR 인코딩하기 /// </summary> /// <param name="bgrHandle">BGR 핸들</param> /// <param name="width">너비</param> /// <param name="height">높이</param> /// <param name="stride">스트라이드</param> /// <param name="qualityFactor">품질 인자</param> /// <param name="outputHandle">출력 핸들</param> /// <returns>처리 결과</returns> public static int WEBPEncodeBGR(IntPtr bgrHandle, int width, int height, int stride, float qualityFactor, out IntPtr outputHandle) { switch(IntPtr.Size) { case 4 : return WebPEncodeBGR_x86(bgrHandle, width, height, stride, qualityFactor, out outputHandle); case 8 : return WebPEncodeBGR_x64(bgrHandle, width, height, stride, qualityFactor, out outputHandle); default : throw new InvalidOperationException("Invalid platform. Can not find proper function"); } } #endregion #region WEBP BGRA 인코딩하기 - WEBPEncodeBGRA(bgraHandle, width, height, stride, qualityFactor, outputHandle) /// <summary> /// WEBP BGRA 인코딩하기 /// </summary> /// <param name="bgraHandle">BGRA 핸들</param> /// <param name="width">너비</param> /// <param name="height">높이</param> /// <param name="stride">스트라이드</param> /// <param name="qualityFactor">품질 인자</param> /// <param name="outputHandle">출력 핸들</param> /// <returns>처리 결과</returns> public static int WEBPEncodeBGRA(IntPtr bgraHandle, int width, int height, int stride, float qualityFactor, out IntPtr outputHandle) { switch(IntPtr.Size) { case 4 : return WebPEncodeBGRA_x86(bgraHandle, width, height, stride, qualityFactor, out outputHandle); case 8 : return WebPEncodeBGRA_x64(bgraHandle, width, height, stride, qualityFactor, out outputHandle); default : throw new InvalidOperationException("Invalid platform. Can not find proper function"); } } #endregion #region WEBP BGR 무손실 인코딩하기 - WEBPEncodeLosslessBGR(bgrHandle, width, height, stride, outputHandle) /// <summary> /// WEBP BGR 무손실 인코딩하기 /// </summary> /// <param name="bgrHandle">BGR 핸들</param> /// <param name="width">너비</param> /// <param name="height">높이</param> /// <param name="stride">스트라이드</param> /// <param name="outputHandle">출력 핸들</param> /// <returns>처리 결과</returns> public static int WEBPEncodeLosslessBGR(IntPtr bgrHandle, int width, int height, int stride, out IntPtr outputHandle) { switch(IntPtr.Size) { case 4 : return WebPEncodeLosslessBGR_x86(bgrHandle, width, height, stride, out outputHandle); case 8 : return WebPEncodeLosslessBGR_x64(bgrHandle, width, height, stride, out outputHandle); default : throw new InvalidOperationException("Invalid platform. Can not find proper function"); } } #endregion #region WEBP BGRA 무손실 인코딩하기 - WEBPEncodeLosslessBGRA(bgraHandle, width, height, stride, outputHandle) /// <summary> /// WEBP BGRA 무손실 인코딩하기 /// </summary> /// <param name="bgraHandle">BGRA 핸들</param> /// <param name="width">너비</param> /// <param name="height">높이</param> /// <param name="stride">스트라이드</param> /// <param name="outputHandle">출력 핸들</param> /// <returns>처리 결과</returns> public static int WEBPEncodeLosslessBGRA(IntPtr bgraHandle, int width, int height, int stride, out IntPtr outputHandle) { switch(IntPtr.Size) { case 4 : return WebPEncodeLosslessBGRA_x86(bgraHandle, width, height, stride, out outputHandle); case 8 : return WebPEncodeLosslessBGRA_x64(bgraHandle, width, height, stride, out outputHandle); default : throw new InvalidOperationException("Invalid platform. Can not find proper function"); } } #endregion #region WEBP 해제하기 - WEBPFree(handle) /// <summary> /// WEBP 해제하기 /// </summary> /// <param name="handle">핸들</param> public static void WEBPFree(IntPtr handle) { switch(IntPtr.Size) { case 4 : WebPFree_x86(handle); break; case 8 : WebPFree_x64(handle); break; default : throw new InvalidOperationException("Invalid platform. Can not find proper function"); } } #endregion #region WEBP 디코더 버전 구하기 - WEBPGetDecoderVersion() /// <summary> /// WEBP 디코더 버전 구하기 /// </summary> /// <returns>WEBP 디코더 버전</returns> public static int WEBPGetDecoderVersion() { switch(IntPtr.Size) { case 4 : return WebPGetDecoderVersion_x86(); case 8 : return WebPGetDecoderVersion_x64(); default : throw new InvalidOperationException("Invalid platform. Can not find proper function"); } } #endregion #region WEBP 픽처 왜곡 구하기 - WEBPPictureDistortion(sourcePicture, targetPicture, metricType, resultHandle) /// <summary> /// WEBP 픽처 왜곡 구하기 /// </summary> /// <param name="sourcePicture">소스 픽처</param> /// <param name="targetPicture">타겟 픽처</param> /// <param name="metricType">미터법 타입</param> /// <param name="resultHandle">결과 핸들</param> /// <returns>처리 결과</returns> public static int WEBPPictureDistortion(ref WEBPPicture sourcePicture, ref WEBPPicture targetPicture, int metricType, IntPtr resultHandle) { switch(IntPtr.Size) { case 4 : return WebPPictureDistortion_x86(ref sourcePicture, ref targetPicture, metricType, resultHandle); case 8 : return WebPPictureDistortion_x64(ref sourcePicture, ref targetPicture, metricType, resultHandle); default : throw new InvalidOperationException("Invalid platform. Can not find proper function"); } } #endregion } } |
▶ WEBPHelper.cs
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using System; using System.Drawing; using System.Drawing.Imaging; using System.IO; using System.Runtime.InteropServices; using System.Windows.Forms; namespace TestProject { /// <summary> /// WEBP 헬퍼 /// </summary> public sealed class WEBPHelper : IDisposable { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// WEBP 최대 차원 /// </summary> private const int WEBP_MAXIMUM_DIMENSION = 16383; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 정보 구하기 - GetInformation(sourceByteArray, width, height, hasAlpha, hasAnimation, format) /// <summary> /// 정보 구하기 /// </summary> /// <param name="sourceByteArray">소스 바이트 배열</param> /// <param name="width">너비</param> /// <param name="height">높이</param> /// <param name="hasAlpha">알파 여부</param> /// <param name="hasAnimation">애니메이션 여부</param> /// <param name="format">포맷</param> public void GetInformation ( byte[] sourceByteArray, out int width, out int height, out bool hasAlpha, out bool hasAnimation, out string format ) { VP8StatusCode statusCode; GCHandle sourceHandle = GCHandle.Alloc(sourceByteArray, GCHandleType.Pinned); try { IntPtr pinnedSourceHandle = sourceHandle.AddrOfPinnedObject(); WEBPBitStreamFeatures features = new WEBPBitStreamFeatures(); statusCode = WIN32Helper.WEBPGetFeatures(pinnedSourceHandle, sourceByteArray.Length, ref features); if(statusCode != 0) { throw new Exception(statusCode.ToString()); } width = features.Width; height = features.Height; if(features.HasAlpha == 1) { hasAlpha = true; } else { hasAlpha = false; } if(features.HasAnimation == 1) { hasAnimation = true; } else { hasAnimation = false; } switch(features.Format) { case 1 : format = "lossy"; break; case 2 : format = "lossless"; break; default : format = "undefined"; break; } } finally { if(sourceHandle.IsAllocated) { sourceHandle.Free(); } } } #endregion #region 디코딩하기 - Decode(sourceByteArray) /// <summary> /// 디코딩하기 /// </summary> /// <param name="sourceByteArray">소스 바이트 배열</param> /// <returns>비트맵</returns> public Bitmap Decode(byte[] sourceByteArray) { Bitmap targetBitmap = null; BitmapData targetBitmapData = null; GCHandle sourceHandle = GCHandle.Alloc(sourceByteArray, GCHandleType.Pinned); try { GetInformation ( sourceByteArray, out int imageWidth, out int imageHeight, out bool hasAlpha, out bool hasAnimation, out string format ); if(hasAlpha) { targetBitmap = new Bitmap(imageWidth, imageHeight, PixelFormat.Format32bppArgb); } else { targetBitmap = new Bitmap(imageWidth, imageHeight, PixelFormat.Format24bppRgb); } targetBitmapData = targetBitmap.LockBits ( new Rectangle(0, 0, imageWidth, imageHeight), ImageLockMode.WriteOnly, targetBitmap.PixelFormat ); int targetSize = targetBitmapData.Stride * imageHeight; IntPtr dataHandle = sourceHandle.AddrOfPinnedObject(); if(targetBitmap.PixelFormat == PixelFormat.Format24bppRgb) { WIN32Helper.WebPDecodeBGRInto ( dataHandle, sourceByteArray.Length, targetBitmapData.Scan0, targetSize, targetBitmapData.Stride ); } else { WIN32Helper.WEBPDecodeBGRAInto ( dataHandle, sourceByteArray.Length, targetBitmapData.Scan0, targetSize, targetBitmapData.Stride ); } return targetBitmap; } finally { if(targetBitmapData != null) { targetBitmap.UnlockBits(targetBitmapData); } if(sourceHandle.IsAllocated) { sourceHandle.Free(); } } } #endregion #region 디코딩하기 - Decode(sourceByteArray, options, pixelFormat) /// <summary> /// 디코딩하기 /// </summary> /// <param name="sourceByteArray">소스 바이트 배열</param> /// <param name="options">WEBP 디코더 옵션</param> /// <param name="pixelFormat">픽셀 포맷</param> /// <returns>비트맵</returns> public Bitmap Decode(byte[] sourceByteArray, WEBPDecoderOptions options, PixelFormat pixelFormat = PixelFormat.DontCare) { GCHandle sourceHandle = GCHandle.Alloc(sourceByteArray, GCHandleType.Pinned); Bitmap targetBitmap = null; BitmapData targetBitmapData = null; VP8StatusCode result; try { WEBPDecoderConfiguration configuration = new WEBPDecoderConfiguration(); if(WIN32Helper.WEBPInitializeDecoderConfiguration(ref configuration) == 0) { throw new Exception("WebPInitDecoderConfig failed. Wrong version?"); } IntPtr dataHandle = sourceHandle.AddrOfPinnedObject(); int width; int height; if(options.UseScaling == 0) { result = WIN32Helper.WEBPGetFeatures(dataHandle, sourceByteArray.Length, ref configuration.Input); if(result != VP8StatusCode.VP8_STATUS_OK) { throw new Exception("Failed WebPGetFeatures with error " + result); } if(options.UseCropping == 1) { if ( options.CropLeft + options.CropWidth > configuration.Input.Width || options.CropTop + options.CropHeight > configuration.Input.Height ) { throw new Exception("Crop options exceeded WebP image dimensions"); } width = options.CropWidth; height = options.CropHeight; } } else { width = options.ScaledWidth; height = options.ScaledHeight; } configuration.Options.BypassFiltering = options.BypassFiltering; configuration.Options.NoFancyUpsampling = options.NoFancyUpsampling; configuration.Options.UseCropping = options.UseCropping; configuration.Options.CropLeft = options.CropLeft; configuration.Options.CropTop = options.CropTop; configuration.Options.CropWidth = options.CropWidth; configuration.Options.CropHeight = options.CropHeight; configuration.Options.UseScaling = options.UseScaling; configuration.Options.ScaledWidth = options.ScaledWidth; configuration.Options.ScaledHeight = options.ScaledHeight; configuration.Options.UseThreads = options.UseThreads; configuration.Options.DitheringStrength = options.DitheringStrength; configuration.Options.Flip = options.Flip; configuration.Options.AlphaDitheringStrength = options.AlphaDitheringStrength; if(configuration.Input.HasAlpha == 1) { configuration.Output.ColorSpace = WEBP_CSP_MODE.MODE_bgrA; targetBitmap = new Bitmap(configuration.Input.Width, configuration.Input.Height, PixelFormat.Format32bppArgb); } else { configuration.Output.ColorSpace = WEBP_CSP_MODE.MODE_BGR; targetBitmap = new Bitmap(configuration.Input.Width, configuration.Input.Height, PixelFormat.Format24bppRgb); } targetBitmapData = targetBitmap.LockBits ( new Rectangle(0, 0, targetBitmap.Width, targetBitmap.Height), ImageLockMode.WriteOnly, targetBitmap.PixelFormat ); configuration.Output.U.RGBA.RGBA = targetBitmapData.Scan0; configuration.Output.U.RGBA.Stride = targetBitmapData.Stride; configuration.Output.U.RGBA.Size = (UIntPtr)(targetBitmap.Height * targetBitmapData.Stride); configuration.Output.Height = targetBitmap.Height; configuration.Output.Width = targetBitmap.Width; configuration.Output.IsExternalMemory = 1; result = WIN32Helper.WEBPDecode(dataHandle, sourceByteArray.Length, ref configuration); if(result != VP8StatusCode.VP8_STATUS_OK) { throw new Exception("Failed WebPDecode with error " + result); } WIN32Helper.WEBPFreeDecoderBuffer(ref configuration.Output); return targetBitmap; } finally { if(targetBitmapData != null) { targetBitmap.UnlockBits(targetBitmapData); } if(sourceHandle.IsAllocated) { sourceHandle.Free(); } } } #endregion #region 로드하기 - Load(filePath) /// <summary> /// 로드하기 /// </summary> /// <param name="filePath">파일 경로</param> /// <returns>비트맵</returns> public Bitmap Load(string filePath) { byte[] sourceByteArray = File.ReadAllBytes(filePath); return Decode(sourceByteArray); } #endregion #region 고속/저품질 썸네일 구하기 - GetThumbnailWithFasterLowQuality(sourceByteArray, width, height) /// <summary> /// 고속/저품질 썸네일 구하기 /// </summary> /// <param name="sourceByteArray">소스 바이트 배열</param> /// <param name="width">너비</param> /// <param name="height">높이</param> /// <returns>비트맵</returns> public Bitmap GetThumbnailWithFasterLowQuality(byte[] sourceByteArray, int width, int height) { GCHandle sourceHandle = GCHandle.Alloc(sourceByteArray, GCHandleType.Pinned); Bitmap bitmap = null; BitmapData bitmapData = null; try { WEBPDecoderConfiguration configuration = new WEBPDecoderConfiguration(); if(WIN32Helper.WEBPInitializeDecoderConfiguration(ref configuration) == 0) { throw new Exception("WebPInitDecoderConfig failed. Wrong version?"); } configuration.Options.BypassFiltering = 1; configuration.Options.NoFancyUpsampling = 1; configuration.Options.UseThreads = 1; configuration.Options.UseScaling = 1; configuration.Options.ScaledWidth = width; configuration.Options.ScaledHeight = height; bitmap = new Bitmap(width, height, PixelFormat.Format24bppRgb); bitmapData = bitmap.LockBits(new Rectangle(0, 0, width, height), ImageLockMode.WriteOnly, bitmap.PixelFormat); configuration.Output.ColorSpace = WEBP_CSP_MODE.MODE_BGR; configuration.Output.U.RGBA.RGBA = bitmapData.Scan0; configuration.Output.U.RGBA.Stride = bitmapData.Stride; configuration.Output.U.RGBA.Size = (UIntPtr)(height * bitmapData.Stride); configuration.Output.Height = height; configuration.Output.Width = width; configuration.Output.IsExternalMemory = 1; IntPtr pinnedSourceHandle = sourceHandle.AddrOfPinnedObject(); VP8StatusCode statusCode = WIN32Helper.WEBPDecode(pinnedSourceHandle, sourceByteArray.Length, ref configuration); if(statusCode != VP8StatusCode.VP8_STATUS_OK) { throw new Exception("Failed WebPDecode with error " + statusCode); } WIN32Helper.WEBPFreeDecoderBuffer(ref configuration.Output); return bitmap; } finally { if(bitmapData != null) { bitmap.UnlockBits(bitmapData); } if(sourceHandle.IsAllocated) { sourceHandle.Free(); } } } #endregion #region 저속/고품질 썸네일 구하기 - GetThumbnailWithSlowHighQuality(sourceByteArray, width, height) /// <summary> /// 저속/고품질 썸네일 구하기 /// </summary> /// <param name="sourceByteArray">소스 바이트 배열</param> /// <param name="width">너비</param> /// <param name="height">높이</param> /// <returns>비트맵</returns> public Bitmap GetThumbnailWithSlowHighQuality(byte[] sourceByteArray, int width, int height) { GCHandle sourceHandle = GCHandle.Alloc(sourceByteArray, GCHandleType.Pinned); Bitmap bitmap = null; BitmapData bitmapData = null; try { WEBPDecoderConfiguration configuration = new WEBPDecoderConfiguration(); if(WIN32Helper.WEBPInitializeDecoderConfiguration(ref configuration) == 0) { throw new Exception("WebPInitDecoderConfig failed. Wrong version?"); } IntPtr pinnedSourceHandle = sourceHandle.AddrOfPinnedObject(); VP8StatusCode statusCode = WIN32Helper.WEBPGetFeatures(pinnedSourceHandle, sourceByteArray.Length, ref configuration.Input); if(statusCode != VP8StatusCode.VP8_STATUS_OK) { throw new Exception("Failed WebPGetFeatures with error " + statusCode); } configuration.Options.BypassFiltering = 0; configuration.Options.NoFancyUpsampling = 0; configuration.Options.UseThreads = 1; configuration.Options.UseScaling = 1; configuration.Options.ScaledWidth = width; configuration.Options.ScaledHeight = height; if(configuration.Input.HasAlpha == 1) { configuration.Output.ColorSpace = WEBP_CSP_MODE.MODE_bgrA; bitmap = new Bitmap(width, height, PixelFormat.Format32bppArgb); } else { configuration.Output.ColorSpace = WEBP_CSP_MODE.MODE_BGR; bitmap = new Bitmap(width, height, PixelFormat.Format24bppRgb); } bitmapData = bitmap.LockBits(new Rectangle(0, 0, width, height), ImageLockMode.WriteOnly, bitmap.PixelFormat); configuration.Output.U.RGBA.RGBA = bitmapData.Scan0; configuration.Output.U.RGBA.Stride = bitmapData.Stride; configuration.Output.U.RGBA.Size = (UIntPtr)(height * bitmapData.Stride); configuration.Output.Height = height; configuration.Output.Width = width; configuration.Output.IsExternalMemory = 1; statusCode = WIN32Helper.WEBPDecode(pinnedSourceHandle, sourceByteArray.Length, ref configuration); if(statusCode != VP8StatusCode.VP8_STATUS_OK) { throw new Exception("Failed WebPDecode with error " + statusCode); } WIN32Helper.WEBPFreeDecoderBuffer(ref configuration.Output); return bitmap; } finally { if(bitmapData != null) { bitmap.UnlockBits(bitmapData); } if(sourceHandle.IsAllocated) { sourceHandle.Free(); } } } #endregion #region 저장하기 - Save(bitmap, filePath, quality) /// <summary> /// 저장하기 /// </summary> /// <param name="bitmap">비트맵</param> /// <param name="filePath">파일 경로</param> /// <param name="quality">품질</param> public void Save(Bitmap bitmap, string filePath, int quality = 75) { byte[] sourceByteArray; sourceByteArray = EncodeLossy(bitmap, quality); File.WriteAllBytes(filePath, sourceByteArray); } #endregion #region 손실 인코딩하기 - EncodeLossy(bitmap, quality) /// <summary> /// 손실 인코딩하기 /// </summary> /// <param name="bitmap">비트맵</param> /// <param name="quality">품질</param> /// <returns>바이트 배열</returns> public byte[] EncodeLossy(Bitmap bitmap, int quality = 75) { if(bitmap.Width == 0 || bitmap.Height == 0) { throw new ArgumentException("Bitmap contains no data.", "bmp"); } if(bitmap.Width > WEBP_MAXIMUM_DIMENSION || bitmap.Height > WEBP_MAXIMUM_DIMENSION) { throw new NotSupportedException ( "Bitmap's dimension is too large. Max is " + WEBP_MAXIMUM_DIMENSION + "x" + WEBP_MAXIMUM_DIMENSION + " pixels." ); } if(bitmap.PixelFormat != PixelFormat.Format24bppRgb && bitmap.PixelFormat != PixelFormat.Format32bppArgb) { throw new NotSupportedException("Only support Format24bppRgb and Format32bppArgb pixelFormat."); } BitmapData bitmapData = null; IntPtr unmanagedDataHandle = IntPtr.Zero; try { int size; bitmapData = bitmap.LockBits ( new Rectangle(0, 0, bitmap.Width, bitmap.Height), ImageLockMode.ReadOnly, bitmap.PixelFormat ); if(bitmap.PixelFormat == PixelFormat.Format24bppRgb) { size = WIN32Helper.WEBPEncodeBGR ( bitmapData.Scan0, bitmap.Width, bitmap.Height, bitmapData.Stride, quality, out unmanagedDataHandle ); } else { size = WIN32Helper.WEBPEncodeBGRA ( bitmapData.Scan0, bitmap.Width, bitmap.Height, bitmapData.Stride, quality, out unmanagedDataHandle ); } if(size == 0) { throw new Exception("Can´t encode WebP"); } byte[] targetByteArray = new byte[size]; Marshal.Copy(unmanagedDataHandle, targetByteArray, 0, size); return targetByteArray; } finally { if(bitmapData != null) { bitmap.UnlockBits(bitmapData); } if(unmanagedDataHandle != IntPtr.Zero) { WIN32Helper.WEBPFree(unmanagedDataHandle); } } } #endregion #region 손실 인코딩하기 - EncodeLossy(bitmap, quality, speed, information) /// <summary> /// 손실 인코딩하기 /// </summary> /// <param name="bitmap">비트맵</param> /// <param name="quality">품질</param> /// <param name="speed">속도</param> /// <param name="information">정보 여부</param> /// <returns>바이트 배열</returns> public byte[] EncodeLossy(Bitmap bitmap, int quality, int speed, bool information = false) { WEBPConfiguration configuration = new WEBPConfiguration(); if(WIN32Helper.WEBPInitializeConfiguration(ref configuration, WEBPPreset.WEBP_PRESET_DEFAULT, 75) == 0) { throw new Exception("Can´t configure preset"); } configuration.Method = speed; if(configuration.Method > 6) { configuration.Method = 6; } configuration.Quality = quality; configuration.AutoFilter = 1; configuration.Pass = speed + 1; configuration.SegmentCount = 4; configuration.Partitions = 3; configuration.ThreadLevel = 1; configuration.AlphaQuality = quality; configuration.AlphaFiltering = 2; configuration.UseSharpYUV = 1; if(WIN32Helper.WEBPGetDecoderVersion() > 1082) { configuration.Preprocessing = 4; configuration.UseSharpYUV = 1; } else { configuration.Preprocessing = 3; } return AdvancedEncode(bitmap, configuration, information); } #endregion #region 무손실 인코딩하기 - EncodeLossless(bitmap) /// <summary> /// 무손실 인코딩하기 /// </summary> /// <param name="bitmap">비트맵</param> /// <returns>바이트 배열</returns> public byte[] EncodeLossless(Bitmap bitmap) { if(bitmap.Width == 0 || bitmap.Height == 0) { throw new ArgumentException("Bitmap contains no data.", "bmp"); } if(bitmap.Width > WEBP_MAXIMUM_DIMENSION || bitmap.Height > WEBP_MAXIMUM_DIMENSION) { throw new NotSupportedException ( "Bitmap's dimension is too large. Max is " + WEBP_MAXIMUM_DIMENSION + "x" + WEBP_MAXIMUM_DIMENSION + " pixels." ); } if(bitmap.PixelFormat != PixelFormat.Format24bppRgb && bitmap.PixelFormat != PixelFormat.Format32bppArgb) { throw new NotSupportedException("Only support Format24bppRgb and Format32bppArgb pixelFormat."); } BitmapData bitmapData = null; IntPtr unmanagedDataHandle = IntPtr.Zero; try { bitmapData = bitmap.LockBits ( new Rectangle(0, 0, bitmap.Width, bitmap.Height), ImageLockMode.ReadOnly, bitmap.PixelFormat ); int size; if(bitmap.PixelFormat == PixelFormat.Format24bppRgb) { size = WIN32Helper.WEBPEncodeLosslessBGR ( bitmapData.Scan0, bitmap.Width, bitmap.Height, bitmapData.Stride, out unmanagedDataHandle ); } else { size = WIN32Helper.WEBPEncodeLosslessBGRA ( bitmapData.Scan0, bitmap.Width, bitmap.Height, bitmapData.Stride, out unmanagedDataHandle ); } byte[] targetByteArray = new byte[size]; Marshal.Copy(unmanagedDataHandle, targetByteArray, 0, size); return targetByteArray; } finally { if(bitmapData != null) { bitmap.UnlockBits(bitmapData); } if(unmanagedDataHandle != IntPtr.Zero) { WIN32Helper.WEBPFree(unmanagedDataHandle); } } } #endregion #region 무손실 인코딩하기 - EncodeLossless(bitmap, speed) /// <summary> /// 무손실 인코딩하기 /// </summary> /// <param name="bitmap">비트맵</param> /// <param name="speed">속도</param> /// <returns>바이트 배열</returns> public byte[] EncodeLossless(Bitmap bitmap, int speed) { WEBPConfiguration configuration = new WEBPConfiguration(); if(WIN32Helper.WEBPInitializeConfiguration(ref configuration, WEBPPreset.WEBP_PRESET_DEFAULT, (speed + 1) * 10) == 0) { throw new Exception("Can´t config preset"); } if(WIN32Helper.WEBPGetDecoderVersion() > 1082) { if(WIN32Helper.WEBPConfigLosslessPreset(ref configuration, speed) == 0) { throw new Exception("Can´t configure lossless preset"); } } else { configuration.Lossless = 1; configuration.Method = speed; if(configuration.Method > 6) { configuration.Method = 6; } configuration.Quality = (speed + 1) * 10; } configuration.Pass = speed + 1; configuration.ThreadLevel = 1; configuration.AlphaFiltering = 2; configuration.UseSharpYUV = 1; configuration.Exact = 0; return AdvancedEncode(bitmap, configuration, false); } #endregion #region 무손실 근접 인코딩하기 - EncodeNearLossless(bitmap, quality, speed) /// <summary> /// 무손실 근접 인코딩하기 /// </summary> /// <param name="bitmap">비트맵</param> /// <param name="quality">품질</param> /// <param name="speed">속도</param> /// <returns>바이트 배열</returns> public byte[] EncodeNearLossless(Bitmap bitmap, int quality, int speed = 9) { if(WIN32Helper.WEBPGetDecoderVersion() <= 1082) { throw new Exception("This DLL version not support EncodeNearLossless"); } WEBPConfiguration configuration = new WEBPConfiguration(); if(WIN32Helper.WEBPInitializeConfiguration(ref configuration, WEBPPreset.WEBP_PRESET_DEFAULT, (speed + 1) * 10) == 0) { throw new Exception("Can´t configure preset"); } if(WIN32Helper.WEBPConfigLosslessPreset(ref configuration, speed) == 0) { throw new Exception("Can´t configure lossless preset"); } configuration.Pass = speed + 1; configuration.NearLossless = quality; configuration.ThreadLevel = 1; configuration.AlphaFiltering = 2; configuration.UseSharpYUV = 1; configuration.Exact = 0; return AdvancedEncode(bitmap, configuration, false); } #endregion #region 버전 구하기 - GetVersion() /// <summary> /// 버전 구하기 /// </summary> /// <returns>버전</returns> public string GetVersion() { uint version = (uint)WIN32Helper.WEBPGetDecoderVersion(); uint revision = version % 256; uint minorVersion = (version >> 8) % 256; uint majorVersion = (version >> 16) % 256; return majorVersion + "." + minorVersion + "." + revision; } #endregion #region 픽처 왜곡 구하기 - GetPictureDistortion(sourceBitmap, targetBitmap, metricType) /// <summary> /// 픽처 왜곡 구하기 /// </summary> /// <param name="sourceBitmap">소스 비트맵</param> /// <param name="targetBitmap">타겟 비트맵</param> /// <param name="metricType">미터법 타입</param> /// <returns>픽처 왜곡 배열</returns> /// <remarks> /// 두 사진 간의 PSNR, SSIM 또는 LSIM 왜곡 메트릭을 계산한다. /// 경고 : 이 기능은 CPU를 많이 사용한다. /// </remarks> public float[] GetPictureDistortion(Bitmap sourceBitmap, Bitmap targetBitmap, int metricType) { WEBPPicture sourcePicture = new WEBPPicture(); WEBPPicture targetPicture = new WEBPPicture(); BitmapData sourceBitmapData = null; BitmapData targetBitmapData = null; float[] targetArray = new float[5]; GCHandle pinnedTargetHandle = GCHandle.Alloc(targetArray, GCHandleType.Pinned); try { if(sourceBitmap == null) { throw new Exception("Source picture is void"); } if(targetBitmap == null) { throw new Exception("Reference picture is void"); } if(metricType > 2) { throw new Exception("Bad metric_type. Use 0 = PSNR, 1 = SSIM, 2 = LSIM"); } if(sourceBitmap.Width != targetBitmap.Width || sourceBitmap.Height != targetBitmap.Height) { throw new Exception("Source and Reference pictures have different dimensions"); } sourceBitmapData = sourceBitmap.LockBits ( new Rectangle(0, 0, sourceBitmap.Width, sourceBitmap.Height), ImageLockMode.ReadOnly, sourceBitmap.PixelFormat ); sourcePicture = new WEBPPicture(); if(WIN32Helper.WEBPInitializePictureInternal(ref sourcePicture) != 1) { throw new Exception("Can´t initialize WebPPictureInit"); } sourcePicture.Width = (int)sourceBitmap.Width; sourcePicture.Height = (int)sourceBitmap.Height; if(sourceBitmapData.PixelFormat == PixelFormat.Format32bppArgb) { sourcePicture.UseARGB = 1; if(WIN32Helper.WEBPPictureImportBGRA(ref sourcePicture, sourceBitmapData.Scan0, sourceBitmapData.Stride) != 1) { throw new Exception("Can´t allocate memory in WebPPictureImportBGR"); } } else { sourcePicture.UseARGB = 0; if(WIN32Helper.WEBPPictureImportBGR(ref sourcePicture, sourceBitmapData.Scan0, sourceBitmapData.Stride) != 1) { throw new Exception("Can´t allocate memory in WebPPictureImportBGR"); } } targetBitmapData = targetBitmap.LockBits ( new Rectangle(0, 0, targetBitmap.Width, targetBitmap.Height), ImageLockMode.ReadOnly, targetBitmap.PixelFormat ); targetPicture = new WEBPPicture(); if(WIN32Helper.WEBPInitializePictureInternal(ref targetPicture) != 1) { throw new Exception("Can´t initialize WebPPictureInit"); } targetPicture.Width = (int)targetBitmap.Width; targetPicture.Height = (int)targetBitmap.Height; targetPicture.UseARGB = 1; if(sourceBitmapData.PixelFormat == PixelFormat.Format32bppArgb) { sourcePicture.UseARGB = 1; if(WIN32Helper.WEBPPictureImportBGRA(ref targetPicture, targetBitmapData.Scan0, targetBitmapData.Stride) != 1) { throw new Exception("Can´t allocate memory in WebPPictureImportBGR"); } } else { sourcePicture.UseARGB = 0; if(WIN32Helper.WEBPPictureImportBGR(ref targetPicture, targetBitmapData.Scan0, targetBitmapData.Stride) != 1) { throw new Exception("Can´t allocate memory in WebPPictureImportBGR"); } } IntPtr targetHandle = pinnedTargetHandle.AddrOfPinnedObject(); if(WIN32Helper.WEBPPictureDistortion(ref sourcePicture, ref targetPicture, metricType, targetHandle) != 1) { throw new Exception("Can´t measure."); } return targetArray; } finally { if(sourceBitmapData != null) { sourceBitmap.UnlockBits(sourceBitmapData); } if(targetBitmapData != null) { targetBitmap.UnlockBits(targetBitmapData); } if(sourcePicture.ARGB != IntPtr.Zero) { WIN32Helper.WEBPPictureFree(ref sourcePicture); } if(targetPicture.ARGB != IntPtr.Zero) { WIN32Helper.WEBPPictureFree(ref targetPicture); } if(pinnedTargetHandle.IsAllocated) { pinnedTargetHandle.Free(); } } } #endregion #region 리소스 해제하기 - Dispose() /// <summary> /// 리소스 해제하기 /// </summary> public void Dispose() { GC.SuppressFinalize(this); } #endregion ////////////////////////////////////////////////////////////////////////////////////////// Private #region 메모리 라이터 - MemoryWriter(dataHandle, dataSize, picture) /// <summary> /// 메모리 라이터 /// </summary> /// <param name="dataHandle">데이터 핸들</param> /// <param name="dataSize">데이터 크기</param> /// <param name="picture">WEBP 픽처</param> /// <returns>처리 결과</returns> private int MemoryWriter([InAttribute()] IntPtr dataHandle, UIntPtr dataSize, ref WEBPPicture picture) { WIN32Helper.CopyMemory(picture.CustomPointer, dataHandle, (uint)dataSize); picture.CustomPointer = new IntPtr(picture.CustomPointer.ToInt64() + (int)dataSize); return 1; } #endregion #region 개선 인코딩하기 - AdvancedEncode(bitmap, configuration, information) /// <summary> /// 개선 인코딩하기 /// </summary> /// <param name="bitmap">비트맵</param> /// <param name="configuration">WEBP 구성</param> /// <param name="information">정보 여부</param> /// <returns>바이트 배열</returns> private byte[] AdvancedEncode(Bitmap bitmap, WEBPConfiguration configuration, bool information) { byte[] targetByteArray = null; byte[] sourceByteArray = null; WEBPPicture picture = new WEBPPicture(); BitmapData bitmapData = null; WEBPAuxiliaryStatistics statistics = new WEBPAuxiliaryStatistics(); IntPtr statisticsHandle = IntPtr.Zero; GCHandle pinnedArrayHandle = new GCHandle(); int sourceSize; try { if(WIN32Helper.WEBPValidateConfiguration(ref configuration) != 1) { throw new Exception("Bad configuration parameters"); } if(bitmap.Width == 0 || bitmap.Height == 0) { throw new ArgumentException("Bitmap contains no data.", "bmp"); } if(bitmap.Width > WEBP_MAXIMUM_DIMENSION || bitmap.Height > WEBP_MAXIMUM_DIMENSION) { throw new NotSupportedException ( "Bitmap's dimension is too large. Max is " + WEBP_MAXIMUM_DIMENSION + "x" + WEBP_MAXIMUM_DIMENSION + " pixels." ); } if(bitmap.PixelFormat != PixelFormat.Format24bppRgb && bitmap.PixelFormat != PixelFormat.Format32bppArgb) { throw new NotSupportedException("Only support Format24bppRgb and Format32bppArgb pixelFormat."); } bitmapData = bitmap.LockBits ( new Rectangle(0, 0, bitmap.Width, bitmap.Height), ImageLockMode.ReadOnly, bitmap.PixelFormat ); if(WIN32Helper.WEBPInitializePictureInternal(ref picture) != 1) { throw new Exception("Can´t initialize WebPPictureInit"); } picture.Width = (int)bitmap.Width; picture.Height = (int)bitmap.Height; picture.UseARGB = 1; if(bitmap.PixelFormat == PixelFormat.Format32bppArgb) { int result = WIN32Helper.WEBPPictureImportBGRA(ref picture, bitmapData.Scan0, bitmapData.Stride); if(result != 1) { throw new Exception("Can´t allocate memory in WebPPictureImportBGRA"); } picture.ColorSpace = (uint)WEBP_CSP_MODE.MODE_bgrA; sourceSize = bitmap.Width * bitmap.Height * 32; sourceByteArray = new byte[bitmap.Width * bitmap.Height * 32]; } else { int result = WIN32Helper.WEBPPictureImportBGR(ref picture, bitmapData.Scan0, bitmapData.Stride); if(result != 1) { throw new Exception("Can´t allocate memory in WebPPictureImportBGR"); } sourceSize = bitmap.Width * bitmap.Height * 24; } if(information) { statistics = new WEBPAuxiliaryStatistics(); statisticsHandle = Marshal.AllocHGlobal(Marshal.SizeOf(statistics)); Marshal.StructureToPtr(statistics, statisticsHandle, false); picture.Statistics = statisticsHandle; } if(sourceSize > 2147483591) { sourceSize = 2147483591; } sourceByteArray = new byte[bitmap.Width * bitmap.Height * 32]; pinnedArrayHandle = GCHandle.Alloc(sourceByteArray, GCHandleType.Pinned); IntPtr initialHandle = pinnedArrayHandle.AddrOfPinnedObject(); picture.CustomPointer = initialHandle; WIN32Helper.memoryWriteDelegate = new WIN32Helper.WEBPMemoryWriteDelegate(MemoryWriter); picture.Writer = Marshal.GetFunctionPointerForDelegate(WIN32Helper.memoryWriteDelegate); if(WIN32Helper.WEBPEncode(ref configuration, ref picture) != 1) { throw new Exception("Encoding error : " + ((WEBPEncodingError)picture.ErrorCode).ToString()); } WIN32Helper.memoryWriteDelegate = null; bitmap.UnlockBits(bitmapData); bitmapData = null; int size = (int)((long)picture.CustomPointer - (long)initialHandle); targetByteArray = new byte[size]; Array.Copy(sourceByteArray, targetByteArray, size); pinnedArrayHandle.Free(); sourceByteArray = null; if(information) { statistics = (WEBPAuxiliaryStatistics)Marshal.PtrToStructure(statisticsHandle, typeof(WEBPAuxiliaryStatistics)); MessageBox.Show ( "Dimension : " + picture.Width + " x " + picture.Height + " pixels\n" + "Output : " + statistics.CodedSize + " bytes\n" + "PSNR Y : " + statistics.PSNRY + " db\n" + "PSNR u : " + statistics.PSNRU + " db\n" + "PSNR v : " + statistics.PSNRV + " db\n" + "PSNR ALL : " + statistics.PSNRALL + " db\n" + "Block intra4 : " + statistics.BlockCountIntra4 + "\n" + "Block intra16 : " + statistics.BlockCountIntra16 + "\n" + "Block skipped : " + statistics.BlockCountSkipped + "\n" + "Header size : " + statistics.HeaderByteCount + " bytes\n" + "Mode-partition : " + statistics.ModePartition0 + " bytes\n" + "Macro-blocks 0 : " + statistics.SegmentSizeSegments0 + " residuals bytes\n" + "Macro-blocks 1 : " + statistics.SegmentSizeSegments1 + " residuals bytes\n" + "Macro-blocks 2 : " + statistics.SegmentSizeSegments2 + " residuals bytes\n" + "Macro-blocks 3 : " + statistics.SegmentSizeSegments3 + " residuals bytes\n" + "Quantizer 0 : " + statistics.SegmentQuantizerSegments0 + " residuals bytes\n" + "Quantizer 1 : " + statistics.SegmentQuantizerSegments1 + " residuals bytes\n" + "Quantizer 2 : " + statistics.SegmentQuantizerSegments2 + " residuals bytes\n" + "Quantizer 3 : " + statistics.SegmentQuantizerSegments3 + " residuals bytes\n" + "Filter level 0 : " + statistics.SegmentLevelSegments0 + " residuals bytes\n" + "Filter level 1 : " + statistics.SegmentLevelSegments1 + " residuals bytes\n" + "Filter level 2 : " + statistics.SegmentLevelSegments2 + " residuals bytes\n" + "Filter level 3 : " + statistics.SegmentLevelSegments3 + " residuals bytes\n", "Compression statistics" ); } return targetByteArray; } finally { if(pinnedArrayHandle.IsAllocated) { pinnedArrayHandle.Free(); } if(statisticsHandle != IntPtr.Zero) { Marshal.FreeHGlobal(statisticsHandle); } if(bitmapData != null) { bitmap.UnlockBits(bitmapData); } if(picture.ARGB != IntPtr.Zero) { WIN32Helper.WEBPPictureFree(ref picture); } } } #endregion } } |
▶ MainForm.cs
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using System; using System.Drawing; using System.IO; using System.Windows.Forms; namespace TestProject { /// <summary> /// 메인 폼 /// </summary> public partial class MainForm : Form { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 파일 열기 대화 상자 1 /// </summary> private OpenFileDialog openFileDialog1; /// <summary> /// 파일 열기 대화 상자 2 /// </summary> private OpenFileDialog openFileDialog2; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainForm() /// <summary> /// 생성자 /// </summary> public MainForm() { InitializeComponent(); this.openFileDialog1 = new OpenFileDialog(); this.openFileDialog1.Filter = "이미지 파일(*.webp, *.png, *.tif, *.tiff)|*.webp;*.png;*.tif;*.tiff"; this.openFileDialog1.FileName = string.Empty; this.openFileDialog2 = new OpenFileDialog(); this.openFileDialog2.Filter = "WebP 파일(*.webp)|*.webp"; this.openFileDialog2.FileName = string.Empty; Load += Form_Load; this.loadButton.Click += loadButton_Click; this.saveButton.Click += saveButton_Click; this.cropFlipButton.Click += cropFlipButton_Click; this.thumbnailButton.Click += thumbnailButton_Click; this.measureButton.Click += measureButton_Click; this.informationButton.Click += informationButton_Click; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private #region 폼 로드시 처리하기 - Form_Load(sender, e) /// <summary> /// 폼 로드시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void Form_Load(object sender, EventArgs e) { try { using(WEBPHelper webp = new WEBPHelper()) { Text += " (libwebp V" + webp.GetVersion() + ")"; } } catch(Exception exception) { MessageBox.Show(this, exception.ToString(), "ERROR", MessageBoxButtons.OK, MessageBoxIcon.Error); } } #endregion #region 이미지 로드 버튼 클릭시 처리하기 - loadButton_Click(sender, e) /// <summary> /// 이미지 로드 버튼 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void loadButton_Click(object sender, EventArgs e) { try { if(this.openFileDialog1.ShowDialog() == DialogResult.OK) { string filePath = this.openFileDialog1.FileName; if(Path.GetExtension(filePath) == ".webp") { using(WEBPHelper webp = new WEBPHelper()) { this.pictureBox.Image = webp.Load(filePath); } } else { this.pictureBox.Image = Image.FromFile(filePath); } } } catch(Exception exception) { MessageBox.Show(this, exception.ToString(), "ERROR", MessageBoxButtons.OK, MessageBoxIcon.Error); } } #endregion #region WEBP 저장 버튼 클릭시 처리하기 - saveButton_Click(sender, e) /// <summary> /// WEBP 저장 버튼 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void saveButton_Click(object sender, EventArgs e) { if(this.pictureBox.Image == null) { MessageBox.Show("저장할 이미지가 없습니다."); return; } CheckForIllegalCrossThreadCalls = false; byte[] targetByteArray; try { Bitmap sourceBitmap = this.pictureBox.Image as Bitmap; // 손실 인코딩 string filePath1 = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "SimpleLossy.webp"); using(WEBPHelper webp = new WEBPHelper()) { targetByteArray = webp.EncodeLossy(sourceBitmap, 75); } File.WriteAllBytes(filePath1, targetByteArray); // 무손실 인코딩 string filePath2 = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "SimpleLossless.webp"); using(WEBPHelper webp = new WEBPHelper()) { targetByteArray = webp.EncodeLossless(sourceBitmap); } File.WriteAllBytes(filePath2, targetByteArray); // 개선된 손실 인코딩 string filePath3 = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "AdvanceLossy.webp"); using(WEBPHelper webp = new WEBPHelper()) { targetByteArray = webp.EncodeLossy(sourceBitmap, 71, 9, true); } File.WriteAllBytes(filePath3, targetByteArray); // 개선된 무손실 인코딩 string filePath4 = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "AdvanceLossless.webp"); using(WEBPHelper webp = new WEBPHelper()) { targetByteArray = webp.EncodeLossless(sourceBitmap, 9); } File.WriteAllBytes(filePath4, targetByteArray); // 메모리에서 품질 40 및 속도 9로 근접 무손실 모드로 인코딩 테스트 // 품질 100 : 손실 없음(-lossless와 동일한 비트 스트림) // 품질 80 : 매우 매우 높은 PSNR(약 54dB)이며 WebP 무손실 이미지에 비해 추가로 5-10% 크기 감소를 얻는다. // 품질 60 : PSNR이 매우 높고(약 48dB) WebP 무손실 이미지에 비해 추가로 20%-25% 크기 감소를 얻는다. // 품질 40 : 높은 PSNR(약 42dB) 및 WebP 무손실 이미지에 비해 추가로 30-35% 크기 감소를 얻는다. // 품질 20(이하) : 중간 PSNR(약 36dB)이며 WebP 무손실 이미지에 비해 추가로 40-50% 크기 감소를 얻는다. string filePath5 = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "NearLossless.webp"); using(WEBPHelper webp = new WEBPHelper()) { targetByteArray = webp.EncodeNearLossless(sourceBitmap, 40, 9); } File.WriteAllBytes(filePath5, targetByteArray); MessageBox.Show("작업을 완료했습니다."); } catch(Exception exception) { MessageBox.Show(this, exception.ToString(), "ERROR", MessageBoxButtons.OK, MessageBoxIcon.Error); } } #endregion #region 로드(CROP/FLIP) 버튼 클릭시 처리하기 - cropFlipButton_Click(sender, e) /// <summary> /// 로드(CROP/FLIP) 버튼 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void cropFlipButton_Click(object sender, EventArgs e) { try { if(this.openFileDialog2.ShowDialog() == DialogResult.OK) { string filePath = this.openFileDialog2.FileName; byte[] sourceByteArray = File.ReadAllBytes(filePath); WEBPDecoderOptions decoderOptions = new WEBPDecoderOptions { UseCropping = 1, CropTop = 10, // 자르기 영역의 맨 위 시작 CropLeft = 10, // 자르기 영역의 왼쪽 시작 CropHeight = 250, // 자르기 영역의 높이 CropWidth = 300, // 자르기 영역의 너비 UseThreads = 1, // 멀티 스레딩 사용 Flip = 1 // 이미지 뒤집기 }; using(WEBPHelper webp = new WEBPHelper()) { this.pictureBox.Image = webp.Decode(sourceByteArray, decoderOptions); } } } catch(Exception exception) { MessageBox.Show(this, exception.ToString(), "ERROR", MessageBoxButtons.OK, MessageBoxIcon.Error); } } #endregion #region 썸네일 로드 버튼 클릭시 처리하기 - thumbnailButton_Click(sender, e) /// <summary> /// 썸네일 로드 버튼 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void thumbnailButton_Click(object sender, EventArgs e) { try { if(this.openFileDialog2.ShowDialog() == DialogResult.OK) { string filePath = this.openFileDialog2.FileName; byte[] sourceByteArray = File.ReadAllBytes(filePath); using(WEBPHelper webp = new WEBPHelper()) { this.pictureBox.Image = webp.GetThumbnailWithSlowHighQuality(sourceByteArray, 200, 150); } } } catch(Exception exception) { MessageBox.Show(this, exception.ToString(), "ERROR", MessageBoxButtons.OK, MessageBoxIcon.Error); } } #endregion #region WEBP 측정 버튼 클릭시 처리하기 - measureButton_Click(sender, e) /// <summary> /// WEBP 측정 버튼 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void measureButton_Click(object sender, EventArgs e) { try { if(this.pictureBox.Image == null) { MessageBox.Show("이미지가 없습니다."); } if(this.openFileDialog2.ShowDialog() == DialogResult.OK) { Bitmap sourceBitmap = this.pictureBox.Image as Bitmap; Bitmap referenceBitmap; float[] targetArray; using(WEBPHelper webp = new WEBPHelper()) { referenceBitmap = webp.Load(this.openFileDialog2.FileName); } using(WEBPHelper webp = new WEBPHelper()) { targetArray = webp.GetPictureDistortion(sourceBitmap, referenceBitmap, 0); // PSNR 측정 } MessageBox.Show ( this, $"적색 : {targetArray[0]}dB.\n" + $"녹색 : {targetArray[1]}dB.\n" + $"청색 : {targetArray[2]}dB.\n" + $"알파 : {targetArray[3]}dB.\n" + $"전체 : {targetArray[4]}dB.", "PSNR", MessageBoxButtons.OK, MessageBoxIcon.Information ); using(WEBPHelper webp = new WEBPHelper()) { targetArray = webp.GetPictureDistortion(sourceBitmap, referenceBitmap, 1); // SSIM 측정 } MessageBox.Show ( this, $"적색 : {targetArray[0]}dB.\n" + $"녹색 : {targetArray[1]}dB.\n" + $"청색 : {targetArray[2]}dB.\n" + $"알파 : {targetArray[3]}dB.\n" + $"전체 : {targetArray[4]}dB.", "PSNR", MessageBoxButtons.OK, MessageBoxIcon.Information ); using(WEBPHelper webp = new WEBPHelper()) { targetArray = webp.GetPictureDistortion(sourceBitmap, referenceBitmap, 2); // LSIM 측정 } MessageBox.Show ( this, $"적색 : {targetArray[0]}dB.\n" + $"녹색 : {targetArray[1]}dB.\n" + $"청색 : {targetArray[2]}dB.\n" + $"알파 : {targetArray[3]}dB.\n" + $"전체 : {targetArray[4]}dB.", "PSNR", MessageBoxButtons.OK, MessageBoxIcon.Information ); } } catch(Exception exception) { MessageBox.Show(this, exception.ToString(), "ERROR", MessageBoxButtons.OK, MessageBoxIcon.Error); } } #endregion #region WEBP 정보 버튼 클릭시 처리하기 - informationButton_Click(sender, e) /// <summary> /// WEBP 정보 버튼 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void informationButton_Click(object sender, EventArgs e) { int width; int height; bool has_alpha; bool has_animation; string format; try { if(this.openFileDialog2.ShowDialog() == DialogResult.OK) { string filePath = this.openFileDialog2.FileName; byte[] sourceByteArray = File.ReadAllBytes(filePath); using(WEBPHelper webp = new WEBPHelper()) { webp.GetInformation(sourceByteArray, out width, out height, out has_alpha, out has_animation, out format); } MessageBox.Show ( this, $"너비 : {width}\n" + $"높이 : {height}\n" + $"투명도 여부 : {has_alpha}\n" + $"애니메이션 여부 : {has_animation}\n" + $"포맷 : {format}", "INFORMATION", MessageBoxButtons.OK, MessageBoxIcon.Information ); } } catch(Exception exception) { MessageBox.Show(this, exception.ToString(), "INFORMATION", MessageBoxButtons.OK, MessageBoxIcon.Error); } } #endregion } } |
