ReactOS 0.4.15-dev-5672-gf73ac17
enum_mediatypes.cpp
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1/*
2 * COPYRIGHT: See COPYING in the top level directory
3 * PROJECT: ReactOS Network Provider for MPEG2 based networks
4 * FILE: dll/directx/ksproxy/enum_mediatypes.cpp
5 * PURPOSE: IEnumMediaTypes interface
6 *
7 * PROGRAMMERS: Johannes Anderwald (johannes.anderwald@reactos.org)
8 */
9#include "precomp.h"
10
12{
13public:
15
17 {
19 return m_Ref;
20 }
22 {
24 if (!m_Ref)
25 {
26 delete this;
27 return 0;
28 }
29 return m_Ref;
30 }
31
32 HRESULT STDMETHODCALLTYPE Next(ULONG cMediaTypes, AM_MEDIA_TYPE **ppMediaTypes, ULONG *pcFetched);
36
37
38 CEnumMediaTypes(ULONG MediaTypeCount, AM_MEDIA_TYPE * MediaTypes) : m_Ref(0), m_MediaTypeCount(MediaTypeCount), m_MediaTypes(MediaTypes), m_Index(0){};
39 virtual ~CEnumMediaTypes(){};
40
41protected:
46};
47
51 IN REFIID refiid,
53{
54 if (IsEqualGUID(refiid, IID_IUnknown))
55 {
56 *Output = PVOID(this);
57 reinterpret_cast<IUnknown*>(*Output)->AddRef();
58 return NOERROR;
59 }
60 if (IsEqualGUID(refiid, IID_IEnumMediaTypes))
61 {
62 *Output = (IEnumMediaTypes*)(this);
63 reinterpret_cast<IEnumMediaTypes*>(*Output)->AddRef();
64 return NOERROR;
65 }
66
67 return E_NOINTERFACE;
68}
69
70//-------------------------------------------------------------------
71// IEnumMediaTypes
72//
73
77 ULONG cMediaTypes,
78 AM_MEDIA_TYPE **ppMediaTypes,
79 ULONG *pcFetched)
80{
81 ULONG i = 0;
82 AM_MEDIA_TYPE * MediaType;
83
84 if (!ppMediaTypes)
85 return E_POINTER;
86
87 if (cMediaTypes > 1 && !pcFetched)
88 return E_INVALIDARG;
89
90 while(i < cMediaTypes)
91 {
92 if (m_Index + i >= m_MediaTypeCount)
93 break;
94
95 MediaType = (AM_MEDIA_TYPE*)CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE));
96 if (!MediaType)
97 break;
98
99 if (m_MediaTypes[m_Index + i].cbFormat)
100 {
101 LPBYTE pFormat = (LPBYTE)CoTaskMemAlloc(m_MediaTypes[m_Index + i].cbFormat);
102 if (!pFormat)
103 {
104 CoTaskMemFree(MediaType);
105 break;
106 }
107
108 CopyMemory(MediaType, &m_MediaTypes[m_Index + i], sizeof(AM_MEDIA_TYPE));
109 MediaType->pbFormat = pFormat;
110 CopyMemory(MediaType->pbFormat, m_MediaTypes[m_Index + i].pbFormat, m_MediaTypes[m_Index + i].cbFormat);
111 MediaType->pUnk = (IUnknown *)this;
112 MediaType->pUnk->AddRef();
113 }
114 else
115 {
116 CopyMemory(MediaType, &m_MediaTypes[m_Index + i], sizeof(AM_MEDIA_TYPE));
117 }
118
119 if (MediaType->pUnk)
120 {
121 MediaType->pUnk->AddRef();
122 }
123
124 ppMediaTypes[i] = MediaType;
125 i++;
126 }
127
128 if (pcFetched)
129 {
130 *pcFetched = i;
131 }
132
133 m_Index += i;
134 if (i < cMediaTypes)
135 return S_FALSE;
136 else
137 return S_OK;
138}
139
143 ULONG cMediaTypes)
144{
145 if (cMediaTypes + m_Index >= m_MediaTypeCount)
146 {
147 return S_FALSE;
148 }
149
150 m_Index += cMediaTypes;
151 return S_OK;
152}
153
157{
158 m_Index = 0;
159 return S_OK;
160}
161
165 IEnumMediaTypes **ppEnum)
166{
167#ifdef KSPROXY_TRACE
168 OutputDebugStringW(L"CEnumMediaTypes::Clone : NotImplemented\n");
169#endif
170 return E_NOTIMPL;
171}
172
174WINAPI
176 ULONG MediaTypeCount,
177 AM_MEDIA_TYPE * MediaTypes,
178 REFIID riid,
179 LPVOID * ppv)
180{
181 CEnumMediaTypes * handler = new CEnumMediaTypes(MediaTypeCount, MediaTypes);
182
183#ifdef KSPROXY_TRACE
187 swprintf(Buffer, L"CEnumMediaTypes_fnConstructor riid %s\n", lpstr);
189#endif
190
191 if (!handler)
192 {
193 CoTaskMemFree(MediaTypes);
194 return E_OUTOFMEMORY;
195 }
196
197 if (FAILED(handler->QueryInterface(riid, ppv)))
198 {
199 /* not supported */
200 delete handler;
201 return E_NOINTERFACE;
202 }
203
204 return NOERROR;
205}
206
#define InterlockedIncrement
Definition: armddk.h:53
#define InterlockedDecrement
Definition: armddk.h:52
#define STDMETHODIMP
Definition: basetyps.h:43
const GUID IID_IUnknown
#define STDMETHODCALLTYPE
Definition: bdasup.h:9
Definition: bufpool.h:45
HRESULT STDMETHODCALLTYPE Skip(ULONG cMediaTypes)
HRESULT STDMETHODCALLTYPE Next(ULONG cMediaTypes, AM_MEDIA_TYPE **ppMediaTypes, ULONG *pcFetched)
HRESULT STDMETHODCALLTYPE Clone(IEnumMediaTypes **ppEnum)
STDMETHODIMP_(ULONG) Release()
STDMETHODIMP QueryInterface(REFIID InterfaceId, PVOID *Interface)
HRESULT STDMETHODCALLTYPE Reset()
AM_MEDIA_TYPE * m_MediaTypes
virtual ~CEnumMediaTypes()
CEnumMediaTypes(ULONG MediaTypeCount, AM_MEDIA_TYPE *MediaTypes)
STDMETHODIMP_(ULONG) AddRef()
#define E_OUTOFMEMORY
Definition: ddrawi.h:100
#define E_INVALIDARG
Definition: ddrawi.h:101
#define E_NOTIMPL
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#define MAX_PATH
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UINT(* handler)(MSIPACKAGE *)
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HRESULT WINAPI StringFromCLSID(REFCLSID id, LPOLESTR *idstr)
Definition: compobj.c:2412
#define swprintf
Definition: precomp.h:40
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
VOID WINAPI CoTaskMemFree(LPVOID ptr)
Definition: ifs.c:442
LPVOID WINAPI CoTaskMemAlloc(SIZE_T size)
Definition: ifs.c:426
void WINAPI SHIM_OBJ_NAME() OutputDebugStringW(LPCWSTR lpOutputString)
Definition: ignoredbgout.c:23
REFIID riid
Definition: atlbase.h:39
REFIID LPVOID * ppv
Definition: atlbase.h:39
ULONG AddRef()
ULONG Release()
#define S_OK
Definition: intsafe.h:52
#define FAILED(hr)
Definition: intsafe.h:51
HRESULT WINAPI CEnumMediaTypes_fnConstructor(ULONG MediaTypeCount, AM_MEDIA_TYPE *MediaTypes, REFIID riid, LPVOID *ppv)
static LPCSTR lpstr
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static LPOLESTR
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long LONG
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@ Output
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unsigned char * LPBYTE
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void * PVOID
Definition: typedefs.h:50
#define IN
Definition: typedefs.h:39
uint32_t ULONG
Definition: typedefs.h:59
#define OUT
Definition: typedefs.h:40
_Must_inspect_result_ _In_ WDFDEVICE _In_ LPCGUID _Out_ PINTERFACE Interface
Definition: wdffdo.h:465
#define CopyMemory
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#define WINAPI
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#define S_FALSE
Definition: winerror.h:2357
#define E_NOINTERFACE
Definition: winerror.h:2364
#define NOERROR
Definition: winerror.h:2354
#define E_POINTER
Definition: winerror.h:2365
__wchar_t WCHAR
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