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authorPaul Davis <paul@linuxaudiosystems.com>2015-10-17 20:46:58 -0400
committerRobin Gareus <robin@gareus.org>2015-10-18 23:03:13 +0200
commit66704eefcbe132eac0415434340f788808c40302 (patch)
tree2d4b596265f2fd801244862cef8bb79a63eea289 /libs/appleutility/CoreAudio105/CAComponent.cpp
parentf7e3117c3b3f09cc10cb10434660accf4ef49fc8 (diff)
alternative new version of the AppleUtility library
Diffstat (limited to 'libs/appleutility/CoreAudio105/CAComponent.cpp')
-rw-r--r--libs/appleutility/CoreAudio105/CAComponent.cpp257
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diff --git a/libs/appleutility/CoreAudio105/CAComponent.cpp b/libs/appleutility/CoreAudio105/CAComponent.cpp
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+++ b/libs/appleutility/CoreAudio105/CAComponent.cpp
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+/* Copyright: © Copyright 2005 Apple Computer, Inc. All rights reserved.
+
+ Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc.
+ ("Apple") in consideration of your agreement to the following terms, and your
+ use, installation, modification or redistribution of this Apple software
+ constitutes acceptance of these terms. If you do not agree with these terms,
+ please do not use, install, modify or redistribute this Apple software.
+
+ In consideration of your agreement to abide by the following terms, and subject
+ to these terms, Apple grants you a personal, non-exclusive license, under AppleÕs
+ copyrights in this original Apple software (the "Apple Software"), to use,
+ reproduce, modify and redistribute the Apple Software, with or without
+ modifications, in source and/or binary forms; provided that if you redistribute
+ the Apple Software in its entirety and without modifications, you must retain
+ this notice and the following text and disclaimers in all such redistributions of
+ the Apple Software. Neither the name, trademarks, service marks or logos of
+ Apple Computer, Inc. may be used to endorse or promote products derived from the
+ Apple Software without specific prior written permission from Apple. Except as
+ expressly stated in this notice, no other rights or licenses, express or implied,
+ are granted by Apple herein, including but not limited to any patent rights that
+ may be infringed by your derivative works or by other works in which the Apple
+ Software may be incorporated.
+
+ The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO
+ WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
+ WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
+ COMBINATION WITH YOUR PRODUCTS.
+
+ IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+ GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION
+ OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT
+ (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN
+ ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+/*=============================================================================
+ CAComponent.cpp
+
+=============================================================================*/
+
+#include "CAComponent.h"
+#include "CAComponentDescription.h"
+#include "CACFDictionary.h"
+#include <stdlib.h>
+
+CAComponent::CAComponent (const ComponentDescription& inDesc, CAComponent* next)
+ : mManuName(0), mAUName(0), mCompName(0), mCompInfo (0)
+{
+ mComp = FindNextComponent ((next ? next->Comp() : NULL), const_cast<ComponentDescription*>(&inDesc));
+ if (mComp)
+ GetComponentInfo (Comp(), &mDesc, NULL, NULL, NULL);
+ else
+ memcpy (&mDesc, &inDesc, sizeof(ComponentDescription));
+}
+
+CAComponent::CAComponent (const Component& comp)
+ : mComp (comp),
+ mManuName(0),
+ mAUName(0),
+ mCompName(0),
+ mCompInfo (0)
+{
+ GetComponentInfo (Comp(), &mDesc, NULL, NULL, NULL);
+}
+
+CAComponent::CAComponent (const ComponentInstance& compInst)
+ : mComp (Component(compInst)),
+ mManuName(0),
+ mAUName(0),
+ mCompName(0),
+ mCompInfo (0)
+{
+ GetComponentInfo (Comp(), &mDesc, NULL, NULL, NULL);
+}
+
+CAComponent::CAComponent (OSType inType, OSType inSubtype, OSType inManu)
+ : mDesc (inType, inSubtype, inManu),
+ mManuName(0), mAUName(0), mCompName(0), mCompInfo (0)
+{
+ mComp = FindNextComponent (NULL, &mDesc);
+ GetComponentInfo (Comp(), &mDesc, NULL, NULL, NULL);
+}
+
+CAComponent::~CAComponent ()
+{
+ Clear();
+}
+
+OSStatus CAComponent::GetResourceVersion (UInt32 &outVersion) const
+{
+ bool versionFound = false;
+ ResFileRefNum componentResFileID = kResFileNotOpened;
+ OSStatus result;
+ short thngResourceCount;
+
+ short curRes = CurResFile();
+ require_noerr (result = OpenAComponentResFile( mComp, &componentResFileID), home);
+ require_noerr (result = componentResFileID <= 0, home);
+
+ UseResFile(componentResFileID);
+
+ thngResourceCount = Count1Resources(kComponentResourceType);
+
+ require_noerr (result = ResError(), home);
+ // only go on if we successfully found at least 1 thng resource
+ require_noerr (thngResourceCount <= 0 ? -1 : 0, home);
+
+ // loop through all of the Component thng resources trying to
+ // find one that matches this Component description
+ for (short i = 0; i < thngResourceCount && (!versionFound); i++)
+ {
+ // try to get a handle to this code resource
+ Handle thngResourceHandle = Get1IndResource(kComponentResourceType, i+1);
+ if (thngResourceHandle != NULL && ((*thngResourceHandle) != NULL))
+ {
+ if (UInt32(GetHandleSize(thngResourceHandle)) >= sizeof(ExtComponentResource))
+ {
+ ExtComponentResource * componentThng = (ExtComponentResource*) (*thngResourceHandle);
+
+ // check to see if this is the thng resource for the particular Component that we are looking at
+ // (there often is more than one Component described in the resource)
+ if ((componentThng->cd.componentType == mDesc.Type())
+ && (componentThng->cd.componentSubType == mDesc.SubType())
+ && (componentThng->cd.componentManufacturer == mDesc.Manu()))
+ {
+ outVersion = componentThng->componentVersion;
+ versionFound = true;
+ }
+ }
+ ReleaseResource(thngResourceHandle);
+ }
+ }
+
+ if (!versionFound)
+ result = resNotFound;
+
+ UseResFile(curRes); // revert
+
+ if ( componentResFileID != kResFileNotOpened )
+ CloseComponentResFile(componentResFileID);
+
+home:
+ return result;
+}
+
+void CAComponent::Clear ()
+{
+ if (mManuName) { CFRelease (mManuName); mManuName = 0; }
+ if (mAUName) { CFRelease (mAUName); mAUName = 0; }
+ if (mCompName) { CFRelease (mCompName); mCompName = 0; }
+ if (mCompInfo) { CFRelease (mCompInfo); mCompInfo = 0; }
+}
+
+CAComponent& CAComponent::operator= (const CAComponent& y)
+{
+ Clear();
+
+ mComp = y.mComp;
+ mDesc = y.mDesc;
+
+ if (y.mManuName) { mManuName = y.mManuName; CFRetain (mManuName); }
+ if (y.mAUName) { mAUName = y.mAUName; CFRetain (mAUName); }
+ if (y.mCompName) { mCompName = y.mCompName; CFRetain (mCompName); }
+ if (y.mCompInfo) { mCompInfo = y.mCompInfo; CFRetain (mCompInfo); }
+
+ return *this;
+}
+
+void CAComponent::SetCompNames () const
+{
+ if (!mCompName) {
+ Handle h1 = NewHandle(4);
+ CAComponentDescription desc;
+ OSStatus err = GetComponentInfo (Comp(), &desc, h1, 0, 0);
+
+ if (err) { DisposeHandle(h1); return; }
+
+ HLock(h1);
+ char* ptr1 = *h1;
+ // Get the manufacturer's name... look for the ':' character convention
+ int len = *ptr1++;
+ char* displayStr = 0;
+
+ const_cast<CAComponent*>(this)->mCompName = CFStringCreateWithPascalString(NULL, (const unsigned char*)*h1, kCFStringEncodingMacRoman);
+
+ for (int i = 0; i < len; ++i) {
+ if (ptr1[i] == ':') { // found the name
+ ptr1[i] = 0;
+ displayStr = ptr1;
+ break;
+ }
+ }
+
+ if (displayStr)
+ {
+ const_cast<CAComponent*>(this)->mManuName = CFStringCreateWithCString(NULL, displayStr, kCFStringEncodingMacRoman);
+
+ //move displayStr ptr past the manu, to the name
+ // we move the characters down a index, because the handle doesn't have any room
+ // at the end for the \0
+ int i = strlen(displayStr), j = 0;
+ while (displayStr[++i] == ' ' && i < len)
+ ;
+ while (i < len)
+ displayStr[j++] = displayStr[i++];
+ displayStr[j] = 0;
+
+ const_cast<CAComponent*>(this)->mAUName = CFStringCreateWithCString(NULL, displayStr, kCFStringEncodingMacRoman);
+ }
+
+ DisposeHandle (h1);
+ }
+}
+
+void CAComponent::SetCompInfo () const
+{
+ if (!mCompInfo) {
+ Handle h1 = NewHandle(4);
+ CAComponentDescription desc;
+ OSStatus err = GetComponentInfo (Comp(), &desc, 0, h1, 0);
+ if (err) return;
+ HLock (h1);
+ const_cast<CAComponent*>(this)->mCompInfo = CFStringCreateWithPascalString(NULL, (const unsigned char*)*h1, kCFStringEncodingMacRoman);
+
+ DisposeHandle (h1);
+ }
+}
+
+void _ShowCF (FILE* file, CFStringRef str)
+{
+ if (CFGetTypeID(str) != CFStringGetTypeID()) {
+ CFShow(str);
+ return;
+ }
+
+ UInt32 len = CFStringGetLength(str);
+ char* chars = (char*)malloc (len * 2); // give us plenty of room for unichar chars
+ if (CFStringGetCString (str, chars, len * 2, kCFStringEncodingUTF8))
+ fprintf (file, "%s", chars);
+ else
+ CFShow (str);
+
+ free (chars);
+}
+
+void CAComponent::Print(FILE* file) const
+{
+ fprintf (file, "CAComponent: %p", (void*)Comp());
+ if (mManuName) {
+ fprintf (file, ", Manu:"); _ShowCF (file, mManuName);
+ if (mAUName) fprintf (file, ", Name:"); _ShowCF (file, mAUName);
+ }
+ fprintf (file, ", ");
+ Desc ().Print(file);
+}