/** * This file has no copyright assigned and is placed in the Public Domain. * This file is part of the mingw-w64 runtime package. * No warranty is given; refer to the file DISCLAIMER.PD within this package. */ #ifndef _D2D1_2HELPER_H_ #define _D2D1_2HELPER_H_ #if NTDDI_VERSION >= NTDDI_WINBLUE #ifndef _D2D1_2_H_ #include #endif #ifndef D2D_USE_C_DEFINITIONS #include #if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP) namespace D2D1 { COM_DECLSPEC_NOTHROW D2D1FORCEINLINE FLOAT ComputeFlatteningTolerance(const D2D1_MATRIX_3X2_F &matrix, FLOAT dpi_x = 96.0f, FLOAT dpi_y = 96.0f, FLOAT max_zoom_factor = 1.0f) { D2D1_MATRIX_3X2_F transform = matrix * D2D1::Matrix3x2F::Scale(dpi_x / 96.0f, dpi_y / 96.0f); FLOAT abs_max_zoom_factor = (max_zoom_factor > 0) ? max_zoom_factor : -max_zoom_factor; return D2D1_DEFAULT_FLATTENING_TOLERANCE / (abs_max_zoom_factor * D2D1ComputeMaximumScaleFactor(&transform)); } } #endif /* WINAPI_PARTITION_APP */ #endif /* D2D_USE_C_DEFINITIONS */ #endif /* NTDDI_VERSION >= NTDDI_WINBLUE */ #endif /* _D2D1_HELPER_H_ */