diff options
Diffstat (limited to 'third_party/skcms/skcms_internal.h')
| -rw-r--r-- | third_party/skcms/skcms_internal.h | 117 |
1 files changed, 3 insertions, 114 deletions
diff --git a/third_party/skcms/skcms_internal.h b/third_party/skcms/skcms_internal.h index 97fc8dea8d..d8fe695265 100644 --- a/third_party/skcms/skcms_internal.h +++ b/third_party/skcms/skcms_internal.h @@ -19,38 +19,13 @@ extern "C" { #endif // ~~~~ General Helper Macros ~~~~ - - // sizeof(x) will return size_t, which is 32-bit on some machines and 64-bit on others. - // We have better testing on 64-bit machines, so force 32-bit machines to behave like 64-bit. - #define SAFE_SIZEOF(x) ((uint64_t)sizeof(x)) - - // Please do not use sizeof() directly, and size_t only when required. - // (We have no way of enforcing these requests...) - - #define ARRAY_COUNT(arr) (int)(SAFE_SIZEOF((arr)) / SAFE_SIZEOF(*(arr))) - - -// ~~~~ skcms_Curve ~~~~ - - // Evaluate an skcms_Curve at x. - float skcms_eval_curve(const skcms_Curve*, float x); - float skcms_MaxRoundtripError(const skcms_Curve*, const skcms_TransferFunction*); - + #define ARRAY_COUNT(arr) (int)(sizeof((arr)) / sizeof(*(arr))) // ~~~~ skcms_TransferFunction ~~~~ - bool skcms_TransferFunction_isValid(const skcms_TransferFunction*); - - float skcms_TransferFunction_eval(const skcms_TransferFunction*, float); - - bool skcms_TransferFunction_invert(const skcms_TransferFunction*, skcms_TransferFunction*); - - // Fit c,d,f parameters of an skcms_TransferFunction to the first 2 ≤ L ≤ N - // evenly-spaced points on an skcms_Curve within a given tolerance, returning L. - int skcms_fit_linear(const skcms_Curve*, int N, float tol, float* c, float* d, float* f); - + float skcms_TransferFunction_eval (const skcms_TransferFunction*, float); + bool skcms_TransferFunction_invert(const skcms_TransferFunction*, skcms_TransferFunction*); // ~~~~ skcms_ICCProfile ~~~~ - bool skcms_GetCHAD(const skcms_ICCProfile* profile, skcms_Matrix3x3* m); // 252 of a random shuffle of all possible bytes. @@ -58,105 +33,19 @@ extern "C" { // Used for ICC profile equivalence testing. extern const uint8_t skcms_252_random_bytes[252]; - // ~~~~ Linear Algebra ~~~~ - - typedef struct { float vals[3]; } skcms_Vector3; - // It is _not_ safe to alias the pointers to invert in-place. bool skcms_Matrix3x3_invert(const skcms_Matrix3x3*, skcms_Matrix3x3*); skcms_Matrix3x3 skcms_Matrix3x3_concat(const skcms_Matrix3x3* A, const skcms_Matrix3x3* B); - skcms_Vector3 skcms_MV_mul(const skcms_Matrix3x3*, const skcms_Vector3*); - - // ~~~~ Portable Math ~~~~ - - static const union { - uint32_t bits; - float f; - } inf_ = { 0x7f800000 }; - - #define INFINITY_ inf_.f - static inline float floorf_(float x) { float roundtrip = (float)((int)x); return roundtrip > x ? roundtrip - 1 : roundtrip; } - - static inline float fmaxf_(float x, float y) { return x > y ? x : y; } - static inline float fminf_(float x, float y) { return x < y ? x : y; } static inline float fabsf_(float x) { return x < 0 ? -x : x; } - - float log2f_(float); - float exp2f_(float); float powf_(float, float); - static inline bool isfinitef_(float x) { return 0 == x*0; } - - -// ~~~~ Transform ~~~~ - - #define FOREACH_Op(M) \ - M(noop) \ - M(load_a8) \ - M(load_g8) \ - M(load_4444) \ - M(load_565) \ - M(load_888) \ - M(load_8888) \ - M(load_1010102) \ - M(load_161616) \ - M(load_16161616) \ - M(load_hhh) \ - M(load_hhhh) \ - M(load_fff) \ - M(load_ffff) \ - M(swap_rb) \ - M(clamp) \ - M(invert) \ - M(force_opaque) \ - M(premul) \ - M(unpremul) \ - M(matrix_3x3) \ - M(matrix_3x4) \ - M(lab_to_xyz) \ - M(tf_r) \ - M(tf_g) \ - M(tf_b) \ - M(tf_a) \ - M(table_8_r) \ - M(table_8_g) \ - M(table_8_b) \ - M(table_8_a) \ - M(table_16_r) \ - M(table_16_g) \ - M(table_16_b) \ - M(table_16_a) \ - M(clut_3D_8) \ - M(clut_3D_16) \ - M(clut_4D_8) \ - M(clut_4D_16) \ - M(store_a8) \ - M(store_g8) \ - M(store_4444) \ - M(store_565) \ - M(store_888) \ - M(store_8888) \ - M(store_1010102) \ - M(store_161616) \ - M(store_16161616) \ - M(store_hhh) \ - M(store_hhhh) \ - M(store_fff) \ - M(store_ffff) - - typedef enum { - #define M(op) Op_##op, - FOREACH_Op(M) - #undef M - } Op; - #if defined(__cpluscplus) } // extern "C" #endif |