1/** 2 * This file has no copyright assigned and is placed in the Public Domain. 3 * This file is part of the mingw-w64 runtime package. 4 * No warranty is given; refer to the file DISCLAIMER.PD within this package. 5 */ 6 7#ifndef _D2D1_EFFECT_HELPERS_H_ 8#define _D2D1_EFFECT_HELPERS_H_ 9 10#include <winapifamily.h> 11 12#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP) 13 14#include <d2d1effectauthor.h> 15 16template<typename T> 17T GetType(T t) { 18 return t; 19}; 20 21template<class C, typename P, typename I> 22HRESULT DeducingValueSetter(HRESULT (C::*callback)(P), I *effect, const BYTE *data, UINT32 dataSize) { 23 return dataSize == sizeof(P) 24 ? (static_cast<C*>(effect)->*callback)(*reinterpret_cast<const P*>(data)) 25 : E_INVALIDARG; 26} 27 28template<typename T, T P, typename I> 29HRESULT CALLBACK ValueSetter(IUnknown *effect, const BYTE *data, UINT32 dataSize) { 30 return DeducingValueSetter(P, static_cast<I*>(effect), data, dataSize); 31} 32 33template<class C, typename P, typename I> 34HRESULT DeducingValueGetter(P (C::*callback)() const, const I *effect, BYTE *data, UINT32 dataSize, UINT32 *actualSize) { 35 if (actualSize) 36 *actualSize = sizeof(P); 37 38 if(!dataSize || !data) 39 return S_OK; 40 41 if (dataSize < sizeof(P)) 42 return E_NOT_SUFFICIENT_BUFFER; 43 44 *reinterpret_cast<P*>(data) = (static_cast<const C*>(effect)->*callback)(); 45 return S_OK; 46} 47 48template<typename T, T P, typename I> 49HRESULT CALLBACK ValueGetter(const IUnknown *effect, BYTE *data, UINT32 dataSize, UINT32 *actualSize) { 50 return DeducingValueGetter(P, static_cast<const I*>(effect), data, dataSize, actualSize); 51} 52 53#define D2D1_VALUE_TYPE_BINDING(name, setter, getter) \ 54 { \ 55 name, \ 56 &ValueSetter<decltype(GetType(setter)), setter, ID2D1EffectImpl>, \ 57 &ValueGetter<decltype(GetType(getter)), getter, ID2D1EffectImpl> \ 58 } 59 60#endif /* WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP) */ 61 62#endif /* _D2D1_EFFECT_HELPERS_H_ */ 63