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libwebp: Update to 1.4.0

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https://chromium.googlesource.com/webm/libwebp/+/refs/tags/v1.4.0/NEWS
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Rémi Verschelde 2024-05-14 13:01:07 +02:00
parent 78cce1954d
commit 09bd34df93
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GPG key ID: C3336907360768E1
74 changed files with 1964 additions and 1127 deletions
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85
thirdparty/libwebp/sharpyuv/sharpyuv.h vendored
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@ -22,22 +22,37 @@ extern "C" {
#else
// This explicitly marks library functions and allows for changing the
// signature for e.g., Windows DLL builds.
#if defined(__GNUC__) && __GNUC__ >= 4
#if defined(_WIN32) && defined(WEBP_DLL)
#define SHARPYUV_EXTERN __declspec(dllexport)
#elif defined(__GNUC__) && __GNUC__ >= 4
#define SHARPYUV_EXTERN extern __attribute__((visibility("default")))
#else
#if defined(_MSC_VER) && defined(WEBP_DLL)
#define SHARPYUV_EXTERN __declspec(dllexport)
#else
#define SHARPYUV_EXTERN extern
#endif /* _MSC_VER && WEBP_DLL */
#endif /* __GNUC__ >= 4 */
#endif /* defined(_WIN32) && defined(WEBP_DLL) */
#endif /* WEBP_EXTERN */
#endif /* SHARPYUV_EXTERN */
#ifndef SHARPYUV_INLINE
#ifdef WEBP_INLINE
#define SHARPYUV_INLINE WEBP_INLINE
#else
#ifndef _MSC_VER
#if defined(__cplusplus) || !defined(__STRICT_ANSI__) || \
(defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L)
#define SHARPYUV_INLINE inline
#else
#define SHARPYUV_INLINE
#endif
#else
#define SHARPYUV_INLINE __forceinline
#endif /* _MSC_VER */
#endif /* WEBP_INLINE */
#endif /* SHARPYUV_INLINE */
// SharpYUV API version following the convention from semver.org
#define SHARPYUV_VERSION_MAJOR 0
#define SHARPYUV_VERSION_MINOR 2
#define SHARPYUV_VERSION_PATCH 1
#define SHARPYUV_VERSION_MINOR 4
#define SHARPYUV_VERSION_PATCH 0
// Version as a uint32_t. The major number is the high 8 bits.
// The minor number is the middle 8 bits. The patch number is the low 16 bits.
#define SHARPYUV_MAKE_VERSION(MAJOR, MINOR, PATCH) \
@ -61,6 +76,33 @@ typedef struct {
int rgb_to_v[4];
} SharpYuvConversionMatrix;
typedef struct SharpYuvOptions SharpYuvOptions;
// Enums for transfer functions, as defined in H.273,
// https://www.itu.int/rec/T-REC-H.273-202107-I/en
typedef enum SharpYuvTransferFunctionType {
// 0 is reserved
kSharpYuvTransferFunctionBt709 = 1,
// 2 is unspecified
// 3 is reserved
kSharpYuvTransferFunctionBt470M = 4,
kSharpYuvTransferFunctionBt470Bg = 5,
kSharpYuvTransferFunctionBt601 = 6,
kSharpYuvTransferFunctionSmpte240 = 7,
kSharpYuvTransferFunctionLinear = 8,
kSharpYuvTransferFunctionLog100 = 9,
kSharpYuvTransferFunctionLog100_Sqrt10 = 10,
kSharpYuvTransferFunctionIec61966 = 11,
kSharpYuvTransferFunctionBt1361 = 12,
kSharpYuvTransferFunctionSrgb = 13,
kSharpYuvTransferFunctionBt2020_10Bit = 14,
kSharpYuvTransferFunctionBt2020_12Bit = 15,
kSharpYuvTransferFunctionSmpte2084 = 16, // PQ
kSharpYuvTransferFunctionSmpte428 = 17,
kSharpYuvTransferFunctionHlg = 18,
kSharpYuvTransferFunctionNum
} SharpYuvTransferFunctionType;
// Converts RGB to YUV420 using a downsampling algorithm that minimizes
// artefacts caused by chroma subsampling.
// This is slower than standard downsampling (averaging of 4 UV values).
@ -85,6 +127,8 @@ typedef struct {
// adjacent pixels on the y, u and v channels. If yuv_bit_depth > 8, they
// should be multiples of 2.
// width, height: width and height of the image in pixels
// This function calls SharpYuvConvertWithOptions with a default transfer
// function of kSharpYuvTransferFunctionSrgb.
SHARPYUV_EXTERN int SharpYuvConvert(const void* r_ptr, const void* g_ptr,
const void* b_ptr, int rgb_step,
int rgb_stride, int rgb_bit_depth,
@ -93,6 +137,31 @@ SHARPYUV_EXTERN int SharpYuvConvert(const void* r_ptr, const void* g_ptr,
int yuv_bit_depth, int width, int height,
const SharpYuvConversionMatrix* yuv_matrix);
struct SharpYuvOptions {
// This matrix cannot be NULL and can be initialized by
// SharpYuvComputeConversionMatrix.
const SharpYuvConversionMatrix* yuv_matrix;
SharpYuvTransferFunctionType transfer_type;
};
// Internal, version-checked, entry point
SHARPYUV_EXTERN int SharpYuvOptionsInitInternal(const SharpYuvConversionMatrix*,
SharpYuvOptions*, int);
// Should always be called, to initialize a fresh SharpYuvOptions
// structure before modification. SharpYuvOptionsInit() must have succeeded
// before using the 'options' object.
static SHARPYUV_INLINE int SharpYuvOptionsInit(
const SharpYuvConversionMatrix* yuv_matrix, SharpYuvOptions* options) {
return SharpYuvOptionsInitInternal(yuv_matrix, options, SHARPYUV_VERSION);
}
SHARPYUV_EXTERN int SharpYuvConvertWithOptions(
const void* r_ptr, const void* g_ptr, const void* b_ptr, int rgb_step,
int rgb_stride, int rgb_bit_depth, void* y_ptr, int y_stride, void* u_ptr,
int u_stride, void* v_ptr, int v_stride, int yuv_bit_depth, int width,
int height, const SharpYuvOptions* options);
// TODO(b/194336375): Add YUV444 to YUV420 conversion. Maybe also add 422
// support (it's rarely used in practice, especially for images).