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Commit a9e17039 authored by Just van Rossum's avatar Just van Rossum
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second CoreGraphics batch

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/*
File: CFMLateImport.c
Contains: Implementation of CFM late import library.
Written by: Quinn
Copyright: Copyright © 1999 by Apple Computer, Inc., all rights reserved.
You may incorporate this Apple sample source code into your program(s) without
restriction. This Apple sample source code has been provided "AS IS" and the
responsibility for its operation is yours. You are not permitted to redistribute
this Apple sample source code as "Apple sample source code" after having made
changes. If you're going to re-distribute the source, we require that you make
it clear in the source that the code was descended from Apple sample source
code, but that you've made changes.
Change History (most recent first):
<13> 24/9/01 Quinn Fixes to compile with C++ activated.
<12> 21/9/01 Quinn [2710489] Fix typo in the comments for FragmentLookup.
<11> 21/9/01 Quinn Changes for CWPro7 Mach-O build.
<10> 19/9/01 Quinn Corrected implementation of kPEFRelocSmBySection. Added
implementations of kPEFRelocSetPosition and kPEFRelocLgByImport
(from code contributed by Eric Grant, Ned Holbrook, and Steve
Kalkwarf), although I can't test them yet.
<9> 19/9/01 Quinn We now handle unpacked data sections, courtesy of some code from
Ned Holbrook.
<8> 19/9/01 Quinn Minor fixes for the previous checkin. Updated some comments and
killed some dead code.
<7> 19/9/01 Quinn Simplified API and implementation after a suggestion by Eric
Grant. You no longer have to CFM export a dummy function; you
can just pass in the address of your fragment's init routine.
<6> 15/2/01 Quinn Modify compile-time warnings to complain if you try to build
this module into a Mach-O binary.
<5> 5/2/01 Quinn Removed redundant assignment in CFMLateImportCore.
<4> 30/11/00 Quinn Added comment about future of data symbols in CF.
<3> 16/11/00 Quinn Allow symbol finding via a callback and use that to implement
CFBundle support.
<2> 18/10/99 Quinn Renamed CFMLateImport to CFMLateImportLibrary to allow for
possible future API expansion.
<1> 15/6/99 Quinn First checked in.
*/
// To Do List:
//
// o get rid of dependence on ANSI "string.h", but how?
//
// Done:
//
// Ã investigate alternative APIs, like an external lookup routine
// renamed CFMLateImport to CFMLateImportLibrary to allow for
// future expansion of the APIs for things like CFMLateImportSymbol
// Ã test with non-zero fragment offset in the file
// Ã test more with MPW fragments
// Ã test data imports
/////////////////////////////////////////////////////////////////
// MoreIsBetter Setup
//#include "MoreSetup.h"
#define MoreAssert(x) (true)
#define MoreAssertQ(x)
// Mac OS Interfaces
#if ! MORE_FRAMEWORK_INCLUDES
#include <CodeFragments.h>
#include <PEFBinaryFormat.h>
#endif
// Standard C Interfaces
#include <string.h>
// MIB Prototypes
//#include "MoreInterfaceLib.h"
#define MoreBlockZero BlockZero
// Our Prototypes
#include "CFMLateImport.h"
/////////////////////////////////////////////////////////////////
#if TARGET_RT_MAC_MACHO
#error CFMLateImport is not suitable for use in a Mach-O project.
#elif !TARGET_RT_MAC_CFM || !TARGET_CPU_PPC
#error CFMLateImport has not been qualified for 68K or CFM-68K use.
#endif
/////////////////////////////////////////////////////////////////
#pragma mark ----- Utility Routines -----
static OSStatus FSReadAtOffset(SInt16 refNum, SInt32 offset, SInt32 count, void *buffer)
// A convenient wrapper around PBRead which has two advantages
// over FSRead. First, it takes count as a value parameter.
// Second, it reads from an arbitrary offset into the file,
// which avoids a bunch of SetFPos calls.
//
// I guess this should go into "MoreFiles.h", but I'm not sure
// how we're going to integrate such a concept into MIB yet.
{
ParamBlockRec pb;
pb.ioParam.ioRefNum = refNum;
pb.ioParam.ioBuffer = (Ptr) buffer;
pb.ioParam.ioReqCount = count;
pb.ioParam.ioPosMode = fsFromStart;
pb.ioParam.ioPosOffset = offset;
return PBReadSync(&pb);
}
/////////////////////////////////////////////////////////////////
#pragma mark ----- Late Import Engine -----
// This structure represents the core data structure of the late import
// engine. It basically holds information about the fragment we're going
// to fix up. It starts off with the first three fields, which are
// provided by the client. Then, as we procede through the operation,
// we fill out more fields.
struct FragToFixInfo {
CFragSystem7DiskFlatLocator locator; // How to find the fragment's container.
CFragConnectionID connID; // CFM connection to the fragment.
CFragInitFunction initRoutine; // The CFM init routine for the fragment.
PEFContainerHeader containerHeader; // The CFM header, read in from the container.
PEFSectionHeader *sectionHeaders; // The CFM section headers. A pointer block containing an array of containerHeader.sectionCount elements.
PEFLoaderInfoHeader *loaderSection; // The entire CFM loader section in a pointer block.
SInt16 fileRef; // A read-only path to the CFM container. We keep this here because one that one routine needs to read from the container.
void *section0Base; // The base address of section 0, which we go through hoops to calculate.
void *section1Base; // The base address of section 1, which we go through hoops to calculate.
Boolean disposeSectionPointers; // See below.
};
typedef struct FragToFixInfo FragToFixInfo;
// The disposeSectionPointers Boolean is designed for future cool VM
// support. If VM is on, the entire code fragment is file mapped into
// high memory, including the data we're forced to allocate the
// sectionHeaders and loaderSection memory blocks to maintain. If
// we could find the address of the entire file mapped container,
// we could access the information directly from there and thus
// we wouldn't need to allocate (or dispose of) the memory blocks
// for sectionHeaders and loaderSection.
//
// I haven't implemented this yet because a) I'm not sure how to do
// it with documented APIs, and b) I couldn't be bothered, but
// disposeSectionPointers remains as vestigial support for the concept.
static OSStatus ReadContainerBasics(FragToFixInfo *fragToFix)
// Reads some basic information from the container of the
// fragment to fix and stores it in various fields of
// fragToFix. This includes:
//
// o containerHeader -- The contain header itself.
// o sectionHeaders -- The array of section headers (in a newly allocated pointer block).
// o loaderSection -- The entire loader section (in a newly allocated pointer block).
//
// Also sets disposeSectionPointers to indicate whether
// the last two pointers should be disposed of.
//
// Finally, it leaves the container file open for later
// folks who want to read data from it.
{
OSStatus err;
UInt16 sectionIndex;
Boolean found;
MoreAssertQ(fragToFix != nil);
MoreAssertQ(fragToFix->locator.fileSpec != nil);
MoreAssertQ(fragToFix->connID != nil);
MoreAssertQ(fragToFix->loaderSection == nil);
MoreAssertQ(fragToFix->sectionHeaders == nil);
MoreAssertQ(fragToFix->fileRef == 0);
fragToFix->disposeSectionPointers = true;
// Open up the file, read the container head, then read in
// all the section headers, then go looking through the
// section headers for the loader section (PEF defines
// that there can be only one).
err = FSpOpenDF(fragToFix->locator.fileSpec, fsRdPerm, &fragToFix->fileRef);
if (err == noErr) {
err = FSReadAtOffset(fragToFix->fileRef,
fragToFix->locator.offset,
sizeof(fragToFix->containerHeader),
&fragToFix->containerHeader);
if (err == noErr) {
if ( fragToFix->containerHeader.tag1 != kPEFTag1
|| fragToFix->containerHeader.tag2 != kPEFTag2
|| fragToFix->containerHeader.architecture != kCompiledCFragArch
|| fragToFix->containerHeader.formatVersion != kPEFVersion) {
err = cfragFragmentFormatErr;
}
}
if (err == noErr) {
fragToFix->sectionHeaders = (PEFSectionHeader *) NewPtr(fragToFix->containerHeader.sectionCount * sizeof(PEFSectionHeader));
err = MemError();
}
if (err == noErr) {
err = FSReadAtOffset(fragToFix->fileRef,
fragToFix->locator.offset + sizeof(fragToFix->containerHeader),
fragToFix->containerHeader.sectionCount * sizeof(PEFSectionHeader),
fragToFix->sectionHeaders);
}
if (err == noErr) {
sectionIndex = 0;
found = false;
while ( sectionIndex < fragToFix->containerHeader.sectionCount && ! found ) {
found = (fragToFix->sectionHeaders[sectionIndex].sectionKind == kPEFLoaderSection);
if ( ! found ) {
sectionIndex += 1;
}
}
}
if (err == noErr && ! found) {
err = cfragNoSectionErr;
}
// Now read allocate a pointer block and read the loader section into it.
if (err == noErr) {
fragToFix->loaderSection = (PEFLoaderInfoHeader *) NewPtr(fragToFix->sectionHeaders[sectionIndex].containerLength);
err = MemError();
}
if (err == noErr) {
err = FSReadAtOffset(fragToFix->fileRef,
fragToFix->locator.offset + fragToFix->sectionHeaders[sectionIndex].containerOffset,
fragToFix->sectionHeaders[sectionIndex].containerLength,
fragToFix->loaderSection);
}
}
// No clean up. The client must init fragToFix to zeros and then
// clean up regardless of whether we return an error.
return err;
}
static UInt32 DecodeVCountValue(const UInt8 *start, UInt32 *outCount)
// Given a pointer to the start of a variable length PEF value,
// work out the value (in *outCount). Returns the number of bytes
// consumed by the value.
{
UInt8 * bytePtr;
UInt8 byte;
UInt32 count;
bytePtr = (UInt8 *)start;
// Code taken from "PEFBinaryFormat.h".
count = 0;
do {
byte = *bytePtr++;
count = (count << kPEFPkDataVCountShift) | (byte & kPEFPkDataVCountMask);
} while ((byte & kPEFPkDataVCountEndMask) != 0);
*outCount = count;
return bytePtr - start;
}
static UInt32 DecodeInstrCountValue(const UInt8 *inOpStart, UInt32 *outCount)
// Given a pointer to the start of an opcode (inOpStart), work out the
// count argument for that opcode (*outCount). Returns the number of
// bytes consumed by the opcode and count combination.
{
MoreAssertQ(inOpStart != nil);
MoreAssertQ(outCount != nil);
if (PEFPkDataCount5(*inOpStart) != 0)
{
// Simple case, count encoded in opcode.
*outCount = PEFPkDataCount5(*inOpStart);
return 1;
}
else
{
// Variable-length case.
return 1 + DecodeVCountValue(inOpStart + 1, outCount);
}
}
static OSStatus UnpackPEFDataSection(const UInt8 * const packedData, UInt32 packedSize,
UInt8 * const unpackedData, UInt32 unpackedSize)
{
OSErr err;
UInt32 offset;
UInt8 opCode;
UInt8 * unpackCursor;
MoreAssertQ(packedData != nil);
MoreAssertQ(unpackedData != nil);
MoreAssertQ(unpackedSize >= packedSize);
// The following asserts assume that the client allocated the memory with NewPtr,
// which may not always be true. However, the asserts' value in preventing accidental
// memory block overruns outweighs the possible maintenance effort.
MoreAssertQ( packedSize == GetPtrSize( (Ptr) packedData ) );
MoreAssertQ( unpackedSize == GetPtrSize( (Ptr) unpackedData) );
err = noErr;
offset = 0;
unpackCursor = unpackedData;
while (offset < packedSize) {
MoreAssertQ(unpackCursor < &unpackedData[unpackedSize]);
opCode = packedData[offset];
switch (PEFPkDataOpcode(opCode)) {
case kPEFPkDataZero:
{
UInt32 count;
offset += DecodeInstrCountValue(&packedData[offset], &count);
MoreBlockZero(unpackCursor, count);
unpackCursor += count;
}
break;
case kPEFPkDataBlock:
{
UInt32 blockSize;
offset += DecodeInstrCountValue(&packedData[offset], &blockSize);
BlockMoveData(&packedData[offset], unpackCursor, blockSize);
unpackCursor += blockSize;
offset += blockSize;
}
break;
case kPEFPkDataRepeat:
{
UInt32 blockSize;
UInt32 repeatCount;
UInt32 loopCounter;
offset += DecodeInstrCountValue(&packedData[offset], &blockSize);
offset += DecodeVCountValue(&packedData[offset], &repeatCount);
repeatCount += 1; // stored value is (repeatCount - 1)
for (loopCounter = 0; loopCounter < repeatCount; loopCounter++) {
BlockMoveData(&packedData[offset], unpackCursor, blockSize);
unpackCursor += blockSize;
}
offset += blockSize;
}
break;
case kPEFPkDataRepeatBlock:
{
UInt32 commonSize;
UInt32 customSize;
UInt32 repeatCount;
const UInt8 *commonData;
const UInt8 *customData;
UInt32 loopCounter;
offset += DecodeInstrCountValue(&packedData[offset], &commonSize);
offset += DecodeVCountValue(&packedData[offset], &customSize);
offset += DecodeVCountValue(&packedData[offset], &repeatCount);
commonData = &packedData[offset];
customData = &packedData[offset + commonSize];
for (loopCounter = 0; loopCounter < repeatCount; loopCounter++) {
BlockMoveData(commonData, unpackCursor, commonSize);
unpackCursor += commonSize;
BlockMoveData(customData, unpackCursor, customSize);
unpackCursor += customSize;
customData += customSize;
}
BlockMoveData(commonData, unpackCursor, commonSize);
unpackCursor += commonSize;
offset += (repeatCount * (commonSize + customSize)) + commonSize;
}
break;
case kPEFPkDataRepeatZero:
{
UInt32 commonSize;
UInt32 customSize;
UInt32 repeatCount;
const UInt8 *customData;
UInt32 loopCounter;
offset += DecodeInstrCountValue(&packedData[offset], &commonSize);
offset += DecodeVCountValue(&packedData[offset], &customSize);
offset += DecodeVCountValue(&packedData[offset], &repeatCount);
customData = &packedData[offset];
for (loopCounter = 0; loopCounter < repeatCount; loopCounter++) {
MoreBlockZero(unpackCursor, commonSize);
unpackCursor += commonSize;
BlockMoveData(customData, unpackCursor, customSize);
unpackCursor += customSize;
customData += customSize;
}
MoreBlockZero(unpackCursor, commonSize);
unpackCursor += commonSize;
offset += repeatCount * customSize;
}
break;
default:
#if MORE_DEBUG
DebugStr("\pUnpackPEFDataSection: Unexpected data opcode");
#endif
err = cfragFragmentCorruptErr;
goto leaveNow;
break;
}
}
leaveNow:
return err;
}
/* SetupSectionBaseAddresses Rationale
-----------------------------------
OK, here's where things get weird. In order to run the relocation
engine, I need to be able to find the base address of an instantiated
section of the fragment we're fixing up given only its section number.
This isn't hard for CFM to do because it's the one that instantiated the
sections in the first place. It's surprisingly difficult to do if
you're not CFM. [And you don't have access to the private CFM APis for
doing it.]
[Alan Lillich is going to kill me when he reads this! I should point out
that TVector's don't have to contain two words, they can be longer,
and that the second word isn't necessarily a TOC pointer, it's
just that the calling conventions require that it be put in the
TOC register when the code is called.
Furthermore, the code section isn't always section 0, and the data
section isn't always section 1, and there can be zero to many sections
of each type.
But these niceties are besides the point: I'm doing something tricky
because I don't have a nice API for getting section base addresses.
If I had a nice API for doing that, none of this code would exist.
]
The technique is very sneaky (thanks to Eric Grant). The fragment to
fix necessarily has a CFM init routine (because it needs that routine
in order to capture the fragment location and connection ID). Thus the
fragment to fix must have a TVector in its data section. TVectors are
interesting because they're made up of two words. The first is a pointer
to the code that implements the routine; the second is a pointer to the TOC
for the fragment that's exporting the TVector. How TVectors are
created is interesting too. On disk, a TVector consists of two words,
the first being the offset from the start of the code section to the
routine, the second being the offset from the start of the data section
to the TOC base. When CFM prepares a TVector, it applies the following
transform:
tvector.codePtr = tvector.codeOffset + base of code section
tvector.tocPtr = tvector.tocOffset + base of data section
Now, you can reverse these questions to make them:
base of code section = tvector.codePtr - tvector.codeOffset
base of data section = tvector.dataPtr - tvector.dataOffset
So if you can find the relocated contents of the TVector and
find the original offsets that made up the TVector, you can then
calculate the base address of both the code and data sections.
Finding the relocated contents of the TVector is easy; I simply
require the client to pass in a pointer to its init routine.
A routine pointer is a TVector pointer, so you can just cast it
and extract the pair of words.
Finding the original offsets is a trickier. My technique is to
look up the init routine in the fragment's loader info header. This
yields the section number and offset where the init routine's unrelocated
TVector exists. Once I have that, I can just read the unrelocated TVector
out of the file and extract the offsets.
*/
struct TVector {
void *codePtr;
void *tocPtr;
};
typedef struct TVector TVector;
static OSStatus SetupSectionBaseAddresses(FragToFixInfo *fragToFix)
// This routine initialises the section0Base and section1Base
// base fields of fragToFix to the base addresses of the
// instantiated fragment represented by the other fields
// of fragToFix. The process works in three states:
//
// 1. Find the contents of the relocated TVector of the
// fragment's initialisation routine, provided to us by
// the caller.
//
// 2. Find the contents of the non-relocated TVector by
// looking it up in the PEF loader info header and then
// using that to read the TVector contents from disk.
// This yields the offsets from the section bases for
// the init routine.
//
// 3. Subtract 2 from 3.
{
OSStatus err;
TVector * relocatedExport;
SInt32 initSection;
UInt32 initOffset;
PEFSectionHeader * initSectionHeader;
Ptr packedDataSection;
Ptr unpackedDataSection;
TVector originalOffsets;
packedDataSection = nil;
unpackedDataSection = nil;
// Step 1.
// First find the init routine's TVector, which gives us the relocated
// offsets of the init routine into the data and code sections.
relocatedExport = (TVector *) fragToFix->initRoutine;
// Step 2.
// Now find the init routine's TVector's offsets in the data section on
// disk. This gives us the raw offsets from the data and code section
// of the beginning of the init routine.
err = noErr;
initSection = fragToFix->loaderSection->initSection;
initOffset = fragToFix->loaderSection->initOffset;
if (initSection == -1) {
err = cfragFragmentUsageErr;
}
if (err == noErr) {
MoreAssertQ( initSection >= 0 ); // Negative indexes are pseudo-sections which are just not allowed!
MoreAssertQ( initSection < fragToFix->containerHeader.sectionCount );
initSectionHeader = &fragToFix->sectionHeaders[initSection];
// If the data section is packed, unpack it to a temporary buffer and then get the
// original offsets from that buffer. If the data section is unpacked, just read
// the original offsets directly off the disk.
if ( initSectionHeader->sectionKind == kPEFPackedDataSection ) {
// Allocate space for packed and unpacked copies of the section.
packedDataSection = NewPtr(initSectionHeader->containerLength);
err = MemError();
if (err == noErr) {
unpackedDataSection = NewPtr(initSectionHeader->unpackedLength);
err = MemError();
}
// Read the contents of the packed section.
if (err == noErr) {
err = FSReadAtOffset( fragToFix->fileRef,
fragToFix->locator.offset
+ initSectionHeader->containerOffset,
initSectionHeader->containerLength,
packedDataSection);
}
// Unpack the data into the unpacked section.
if (err == noErr) {
err = UnpackPEFDataSection( (UInt8 *) packedDataSection, initSectionHeader->containerLength,
(UInt8 *) unpackedDataSection, initSectionHeader->unpackedLength);
}
// Extract the init routine's TVector from the unpacked section.
if (err == noErr) {
BlockMoveData(unpackedDataSection + initOffset, &originalOffsets, sizeof(TVector));
}
} else {
MoreAssertQ(fragToFix->sectionHeaders[initSection].sectionKind == kPEFUnpackedDataSection);
err = FSReadAtOffset(fragToFix->fileRef,
fragToFix->locator.offset
+ fragToFix->sectionHeaders[initSection].containerOffset
+ initOffset,
sizeof(TVector),
&originalOffsets);
}
}
// Step 3.
// Do the maths to subtract the unrelocated offsets from the current address
// to get the base address.
if (err == noErr) {
fragToFix->section0Base = ((char *) relocatedExport->codePtr) - (UInt32) originalOffsets.codePtr;
fragToFix->section1Base = ((char *) relocatedExport->tocPtr) - (UInt32) originalOffsets.tocPtr;
}
// Clean up.
if (packedDataSection != nil) {
DisposePtr(packedDataSection);
MoreAssertQ( MemError() == noErr );
}
if (unpackedDataSection != nil) {
DisposePtr(unpackedDataSection);
MoreAssertQ( MemError() == noErr );
}
return err;
}
static void *GetSectionBaseAddress(const FragToFixInfo *fragToFix, UInt16 sectionIndex)
// This routine returns the base of the instantiated section
// whose index is sectionIndex. This routine is the evil twin
// of SetupSectionBaseAddresses. It simply returns the values
// for section 0 and 1 that we derived in SetupSectionBaseAddresses.
// In a real implementation, this routine would call CFM API
// to get this information, and SetupSectionBaseAddresses would
// not exist, but CFM does not export the necessary APIs to
// third parties.
{
void *result;
MoreAssertQ(fragToFix != nil);
MoreAssertQ(fragToFix->containerHeader.tag1 == kPEFTag1);
switch (sectionIndex) {
case 0:
result = fragToFix->section0Base;
break;
case 1:
result = fragToFix->section1Base;
break;
default:
result = nil;
break;
}
return result;
}
static OSStatus FindImportLibrary(PEFLoaderInfoHeader *loaderSection, const char *libraryName, PEFImportedLibrary **importLibrary)
// This routine finds the import library description (PEFImportedLibrary)
// for the import library libraryName in the PEF loader section.
// It sets *importLibrary to the address of the description.
{
OSStatus err;
UInt32 librariesRemaining;
PEFImportedLibrary *thisImportLibrary;
Boolean found;
MoreAssertQ(loaderSection != nil);
MoreAssertQ(libraryName != nil);
MoreAssertQ(importLibrary != nil);
// Loop through each import library looking for a matching name.
// Initialise thisImportLibrary to point to the byte after the
// end of the loader section's header.
thisImportLibrary = (PEFImportedLibrary *) (loaderSection + 1);
librariesRemaining = loaderSection->importedLibraryCount;
found = false;
while ( librariesRemaining > 0 && ! found ) {
// PEF defines that import library names will have
// a null terminator, so we can just use strcmp.
found = (strcmp( libraryName,
((char *)loaderSection)
+ loaderSection->loaderStringsOffset
+ thisImportLibrary->nameOffset) == 0);
// *** Remove ANSI strcmp eventually.
if ( ! found ) {
thisImportLibrary += 1;
librariesRemaining -= 1;
}
}
if (found) {
*importLibrary = thisImportLibrary;
err = noErr;
} else {
*importLibrary = nil;
err = cfragNoLibraryErr;
}
return err;
}
static OSStatus LookupSymbol(CFMLateImportLookupProc lookup, void *refCon,
PEFLoaderInfoHeader *loaderSection,
UInt32 symbolIndex,
UInt32 *symbolValue)
// This routine is used to look up a symbol during relocation.
// "lookup" is a client callback and refCon is its argument.
// Typically refCon is the CFM connection to the library that is
// substituting for the weak linked library. loaderSection
// is a pointer to the loader section of the fragment to fix up.
// symbolIndex is the index of the imported symbol in the loader section.
// The routine sets the word pointed to by symbolValue to the
// value of the symbol.
//
// The routine works by using symbolIndex to index into the imported
// symbol table to find the offset of the symbol's name in the string
// table. It then looks up the symbol by calling the client's "lookup"
// function and passes the resulting symbol address back in symbolValue.
{
OSStatus err;
UInt32 *importSymbolTable;
UInt32 symbolStringOffset;
Boolean symbolIsWeak;
CFragSymbolClass symbolClass;
char *symbolStringAddress;
Str255 symbolString;
MoreAssertQ(lookup != nil);
MoreAssertQ(loaderSection != nil);
MoreAssertQ(symbolIndex < loaderSection->totalImportedSymbolCount);
MoreAssertQ(symbolValue != nil);
// Find the base of the imported symbol table.
importSymbolTable = (UInt32 *)(((char *)(loaderSection + 1)) + (loaderSection->importedLibraryCount * sizeof(PEFImportedLibrary)));
// Grab the appropriate entry out of the table and
// extract the information from that entry.
symbolStringOffset = importSymbolTable[symbolIndex];
symbolClass = PEFImportedSymbolClass(symbolStringOffset);
symbolIsWeak = ((symbolClass & kPEFWeakImportSymMask) != 0);
symbolClass = symbolClass & ~kPEFWeakImportSymMask;
symbolStringOffset = PEFImportedSymbolNameOffset(symbolStringOffset);
// Find the string for the symbol in the strings table and
// extract it from the table into a Pascal string on the stack.
symbolStringAddress = ((char *)loaderSection) + loaderSection->loaderStringsOffset + symbolStringOffset;
symbolString[0] = strlen(symbolStringAddress); // *** remove ANSI strlen
BlockMoveData(symbolStringAddress, &symbolString[1], symbolString[0]);
// Look up the symbol in substitute library. If it fails, return
// a 0 value and check whether the error is fatal (a strong linked
// symbol) or benign (a weak linked symbol).
err = lookup(symbolString, symbolClass, (void **) symbolValue, refCon);
if (err != noErr) {
*symbolValue = 0;
if (symbolIsWeak) {
err = noErr;
}
}
return err;
}
// The EngineState structure encapsulates all of the persistent state
// of the CFM relocation engine virtual machine. I originally defined
// this structure so I could pass the state around between routines
// that implement various virtual opcodes, however I later worked
// out that the relocation was sufficiently simple that I could put it
// in in one routine. Still, I left the state in this structure in
// case I ever need to reverse that decision. It's also a convenient
// instructional design.
struct EngineState {
UInt32 currentReloc; // Index of current relocation opcodes
UInt32 terminatingReloc; // Index of relocation opcodes which terminates relocation
UInt32 *sectionBase; // Start of the section
UInt32 *relocAddress; // Address within the section where the relocations are to be performed
UInt32 importIndex; // Symbol index, which is used to access an imported symbol's address
void *sectionC; // Memory address of an instantiated section within the PEF container; this variable is used by relocation opcodes that relocate section addresses
void *sectionD; // Memory address of an instantiated section within the PEF container; this variable is used by relocation opcodes that relocate section addresses
};
typedef struct EngineState EngineState;
// Note:
// If I ever have to support the repeat opcodes, I'll probably
// have to add a repeat counter to EngineState.
static OSStatus InitEngineState(const FragToFixInfo *fragToFix,
UInt16 relocHeaderIndex,
EngineState *state)
// This routine initialises the engine state suitably for
// running the relocation opcodes for the section whose
// index is relocHeaderIndex. relocHeaderIndex is not a
// a section number. See the comment where it's used below
// for details. The routine basically fills out all the fields
// in the EngineState structure as described by
// "Mac OS Runtime Architectures".
{
OSStatus err;
PEFLoaderRelocationHeader *relocHeader;
MoreAssertQ(fragToFix != nil);
MoreAssertQ(state != nil);
// This bit is tricky. relocHeaderIndex is an index into the relocation
// header table, starting at relocSectionCount (which is in the loader
// section header) for the first relocated section and decrementing
// down to 1 for the last relocated section. I find the relocation
// header by using relocHeaderIndex as a index backwards from the
// start of the relocation opcodes (ie relocInstrOffset). If you
// look at the diagram of the layout of the container in
// "PEFBinaryFormat.h", you'll see that the relocation opcodes
// immediately follow the relocation headers.
//
// I did this because the alternative (starting at the loader
// header and stepping past the import library table and the
// import symbol table) was a pain.
relocHeader = (PEFLoaderRelocationHeader *) (((char *) fragToFix->loaderSection) + fragToFix->loaderSection->relocInstrOffset - relocHeaderIndex * sizeof(PEFLoaderRelocationHeader));
MoreAssertQ(relocHeader->reservedA == 0); // PEF spec says it must be; we check to try to catch bugs in calculation of relocHeader
state->currentReloc = relocHeader->firstRelocOffset;
state->terminatingReloc = relocHeader->firstRelocOffset + relocHeader->relocCount;
state->sectionBase = (UInt32 *) GetSectionBaseAddress(fragToFix, relocHeader->sectionIndex);
state->relocAddress = state->sectionBase;
state->importIndex = 0;
// From "Mac OS Runtime Architectures":
//
// The sectionC and sectionD variables actually contain the
// memory address of an instantiated section minus the
// default address for that section. The default address for a
// section is contained in the defaultAddress field of the
// section header. However, in almost all cases the default
// address should be 0, so the simplified definition suffices.
//
// In the debug version, we drop into MacsBug if this weird case
// ever executes because it's more likely we made a mistake than
// we encountered a section with a default address.
state->sectionC = GetSectionBaseAddress(fragToFix, 0);
if (state->sectionC != nil) {
#if MORE_DEBUG
if (fragToFix->sectionHeaders[0].defaultAddress != 0) {
DebugStr("\pInitEngineState: Executing weird case.");
}
#endif
(char *) state->sectionC -= fragToFix->sectionHeaders[0].defaultAddress;
}
state->sectionD = GetSectionBaseAddress(fragToFix, 1);
if (state->sectionD != nil) {
#if MORE_DEBUG
if (fragToFix->sectionHeaders[1].defaultAddress != 0) {
DebugStr("\pInitEngineState: Executing weird case.");
}
#endif
(char *) state->sectionD -= fragToFix->sectionHeaders[1].defaultAddress;
}
err = noErr;
if (state->relocAddress == nil) {
err = cfragFragmentUsageErr;
}
return err;
}
// kPEFRelocBasicOpcodes is a table that maps the top 7 bits of the opcode
// to a fundamental action. It's contents are defined for me in "PEFBinaryFormat.h",
// which is really convenient.
static UInt8 kPEFRelocBasicOpcodes[kPEFRelocBasicOpcodeRange] = { PEFMaskedBasicOpcodes };
static OSStatus RunRelocationEngine(const FragToFixInfo *fragToFix,
PEFImportedLibrary *importLibrary,
CFMLateImportLookupProc lookup, void *refCon)
// This is where the rubber really hits the. Given a fully
// populated fragToFix structure, the import library description
// of the weak imported library we're resolving, and a connection
// to the library we're going to substitute it, re-execute the
// relocation instructions (CFM has already executed them once)
// but only *do* instructions (ie store the change to the data section)
// that CFM skipped because the weak symbols were missing.
{
OSStatus err;
EngineState state;
UInt16 sectionsLeftToRelocate;
UInt32 totalRelocs;
UInt16 *relocInstrTable;
UInt16 opCode;
MoreAssertQ(fragToFix != nil);
MoreAssertQ(fragToFix->containerHeader.tag1 == kPEFTag1);
MoreAssertQ(fragToFix->sectionHeaders != nil);
MoreAssertQ(fragToFix->loaderSection != nil);
MoreAssertQ(fragToFix->section0Base != nil); // Technically, having a nil for these two is not a problem, ...
MoreAssertQ(fragToFix->section1Base != nil); // but in practise it a wildly deviant case and we should know about it.
MoreAssertQ(importLibrary != nil);
MoreAssertQ(lookup != nil);
// Before entering the loop, work out some information in advance.
// totalRelocs is only used for debugging, to make sure our
// relocation PC (state.currentReloc) doesn't run wild.
totalRelocs = (fragToFix->loaderSection->loaderStringsOffset - fragToFix->loaderSection->relocInstrOffset) / sizeof(UInt16);
// relocInstrTable is the base address of the table of relocation
// instructions in the fragment to fix.
relocInstrTable = (UInt16 *)((char *) fragToFix->loaderSection + fragToFix->loaderSection->relocInstrOffset);
// sectionsLeftToRelocate is the loop counter for the outer loop.
MoreAssertQ(fragToFix->loaderSection->relocSectionCount <= 0x0FFFF);
sectionsLeftToRelocate = fragToFix->loaderSection->relocSectionCount;
// Now let's run the relocation engine. We run it once per
// section in the table. Each time around, we init the engine
// and then loop again, this time executing individual opcodes.
// The opcode loop terminates when the relocation PC
// (state.currentReloc) hits the final opcode (state.terminatingReloc).
// Note:
// One design decision I made was to totally re-init the engine state
// for each section. The CFM spec is unclear as to whether you're supposed
// to totally re-init the engine state, or just re-init the section-specific
// state (ie currentReloc, terminatingReloc, and relocAddress). I hope this
// is correct, but it's hard to test without having a fragment with multiple
// relocated sections, which is difficult to create.
// How do I decide which opcodes should be effective (ie make changes to
// the section being relocated) and which opcodes should just be executed
// for their side effects (ie updated state.relocAddress or state.importIndex)?
// The answer is both simple and subtle. Opcodes whose actions are dependent
// on a symbol that was in the weak linked library are effective, those that
// an independent of those symbols are not. The only opcodes that use
// symbolic values are kPEFRelocImportRun and kPEFRelocSmByImport, and
// these are only if the symbol is in the weak linked library.
// All other cases are executed for their side effects only.
//
// How do I determine if a symbol is in the weak linked library?
// Well I know the symbol's index and I know the lower bound and count
// of the symbols in the weak linked library, so I just do a simple
// bounds test, ie
//
// firstImportedSymbol <= importIndex < firstImportedSymbol + importedSymbolCount
// From this code, it's relatively easy to see which relocation opcodes
// aren't implemented. If you ever encounter one, you'll find yourself
// in MacsBug with a message telling you which opcode was found. The
// two big groups of opcodes I skipped were the large format opcodes
// and the repeating opcodes. I skipped them because:
//
// a) I haven't got a way to generate them in a PEF container that I can
// test against. Without that, there's no way I could be assured that
// the code worked.
//
// b) I'm lazy.
err = noErr;
while ( sectionsLeftToRelocate > 0 ) {
err = InitEngineState(fragToFix, sectionsLeftToRelocate, &state);
if (err != noErr) {
goto leaveNow;
}
while ( state.currentReloc != state.terminatingReloc ) {
MoreAssertQ( state.currentReloc < totalRelocs );
opCode = relocInstrTable[state.currentReloc];
switch ( PEFRelocBasicOpcode(opCode) ) {
case kPEFRelocBySectDWithSkip:
{
UInt16 skipCount;
UInt16 relocCount;
skipCount = ((opCode >> 6) & 0x00FF);
relocCount = (opCode & 0x003F);
state.relocAddress += skipCount;
state.relocAddress += relocCount;
}
break;
case kPEFRelocBySectC:
case kPEFRelocBySectD:
{
UInt16 runLength;
runLength = (opCode & 0x01FF) + 1;
state.relocAddress += runLength;
}
break;
case kPEFRelocTVector12:
{
UInt16 runLength;
runLength = (opCode & 0x01FF) + 1;
state.relocAddress += (runLength * 3);
}
break;
case kPEFRelocTVector8:
case kPEFRelocVTable8:
{
UInt16 runLength;
runLength = (opCode & 0x01FF) + 1;
state.relocAddress += (runLength * 2);
}
break;
case kPEFRelocImportRun:
{
UInt32 symbolValue;
UInt16 runLength;
runLength = (opCode & 0x01FF) + 1;
while (runLength > 0) {
if ( state.importIndex >= importLibrary->firstImportedSymbol && state.importIndex < (importLibrary->firstImportedSymbol + importLibrary->importedSymbolCount) ) {
err = LookupSymbol(lookup, refCon, fragToFix->loaderSection, state.importIndex, &symbolValue);
if (err != noErr) {
goto leaveNow;
}
*(state.relocAddress) += symbolValue;
}
state.importIndex += 1;
state.relocAddress += 1;
runLength -= 1;
}
}
break;
case kPEFRelocSmByImport:
{
UInt32 symbolValue;
UInt32 index;
index = (opCode & 0x01FF);
if ( index >= importLibrary->firstImportedSymbol && index < (importLibrary->firstImportedSymbol + importLibrary->importedSymbolCount) ) {
err = LookupSymbol(lookup, refCon, fragToFix->loaderSection, index, &symbolValue);
if (err != noErr) {
goto leaveNow;
}
*(state.relocAddress) += symbolValue;
}
state.importIndex = index + 1;
state.relocAddress += 1;
}
break;
case kPEFRelocSmSetSectC:
{
UInt32 index;
index = (opCode & 0x01FF);
state.sectionC = GetSectionBaseAddress(fragToFix, index);
MoreAssertQ(state.sectionC != nil);
}
break;
case kPEFRelocSmSetSectD:
{
UInt32 index;
index = (opCode & 0x01FF);
state.sectionD = GetSectionBaseAddress(fragToFix, index);
MoreAssertQ(state.sectionD != nil);
}
break;
case kPEFRelocSmBySection:
state.relocAddress += 1;
break;
case kPEFRelocIncrPosition:
{
UInt16 offset;
offset = (opCode & 0x0FFF) + 1;
((char *) state.relocAddress) += offset;
}
break;
case kPEFRelocSmRepeat:
#if MORE_DEBUG
DebugStr("\pRunRelocationEngine: kPEFRelocSmRepeat not yet implemented");
#endif
err = unimpErr;
goto leaveNow;
break;
case kPEFRelocSetPosition:
{
UInt32 offset;
// Lot's of folks have tried various interpretations of the description of
// this opCode in "Mac OS Runtime Architectures" (which states "This instruction
// sets relocAddress to the address of the section offset offset." *smile*).
// I eventually dug into the CFM source code to find my interpretation, which
// I believe is correct. The key point is tht the offset is relative to
// the start of the section for which these relocations are being performed.
// Skip to next reloc word, which is the second chunk of the offset.
state.currentReloc += 1;
// Extract offset based on the most significant 10 bits in opCode and
// the next significant 16 bits in the next reloc word.
offset = PEFRelocSetPosFullOffset(opCode, relocInstrTable[state.currentReloc]);
state.relocAddress = (UInt32 *) ( ((char *) state.sectionBase) + offset);
}
break;
case kPEFRelocLgByImport:
{
UInt32 symbolValue;
UInt32 index;
// Get the 26 bit symbol index from the current and next reloc words.
state.currentReloc += 1;
index = PEFRelocLgByImportFullIndex(opCode, relocInstrTable[state.currentReloc]);
if ( index >= importLibrary->firstImportedSymbol && index < (importLibrary->firstImportedSymbol + importLibrary->importedSymbolCount) ) {
err = LookupSymbol(lookup, refCon, fragToFix->loaderSection, index, &symbolValue);
if (err != noErr) {
goto leaveNow;
}
*(state.relocAddress) += symbolValue;
}
state.importIndex = index + 1;
state.relocAddress += 1;
}
break;
case kPEFRelocLgRepeat:
#if MORE_DEBUG
DebugStr("\pRunRelocationEngine: kPEFRelocLgRepeat not yet implemented");
#endif
err = unimpErr;
goto leaveNow;
break;
case kPEFRelocLgSetOrBySection:
#if MORE_DEBUG
DebugStr("\pRunRelocationEngine: kPEFRelocLgSetOrBySection not yet implemented");
#endif
err = unimpErr;
goto leaveNow;
break;
case kPEFRelocUndefinedOpcode:
err = cfragFragmentCorruptErr;
goto leaveNow;
break;
default:
MoreAssertQ(false);
err = cfragFragmentCorruptErr;
goto leaveNow;
break;
}
state.currentReloc += 1;
}
sectionsLeftToRelocate -= 1;
}
leaveNow:
return err;
}
extern pascal OSStatus CFMLateImportCore(const CFragSystem7DiskFlatLocator *fragToFixLocator,
CFragConnectionID fragToFixConnID,
CFragInitFunction fragToFixInitRoutine,
ConstStr255Param weakLinkedLibraryName,
CFMLateImportLookupProc lookup,
void *refCon)
// See comments in interface part.
{
OSStatus err;
OSStatus junk;
FragToFixInfo fragToFix;
PEFImportedLibrary *importLibrary;
char weakLinkedLibraryNameCString[256];
MoreAssertQ(fragToFixLocator != nil);
MoreAssertQ(fragToFixConnID != nil);
MoreAssertQ(fragToFixInitRoutine != nil);
MoreAssertQ(weakLinkedLibraryName != nil);
MoreAssertQ(lookup != nil);
// Fill out the bits of fragToFix which are passed in
// by the client.
MoreBlockZero(&fragToFix, sizeof(fragToFix));
fragToFix.locator = *fragToFixLocator;
fragToFix.connID = fragToFixConnID;
fragToFix.initRoutine = fragToFixInitRoutine;
// Make a C string from weakLinkedLibraryName.
BlockMoveData(weakLinkedLibraryName + 1, weakLinkedLibraryNameCString, weakLinkedLibraryName[0]);
weakLinkedLibraryNameCString[weakLinkedLibraryName[0]] = 0;
// Get the basic information from the fragment.
// Fills out the containerHeader, sectionHeaders, loaderSection and fileRef fields
// of fragToFix.
err = ReadContainerBasics(&fragToFix);
// Set up the base address fields in fragToFix (ie section0Base and section1Base)
// by looking up our init routine (fragToFix.initRoutine) and subtracting
// away the section offsets (which we get from the disk copy of the section)
// to derive the bases of the sections themselves.
if (err == noErr) {
err = SetupSectionBaseAddresses(&fragToFix);
}
// Look inside the loader section for the import library description
// of weakLinkedLibraryName. We need this to know the range of symbol
// indexes we're going to fix up.
if (err == noErr) {
err = FindImportLibrary(fragToFix.loaderSection, weakLinkedLibraryNameCString, &importLibrary);
}
// Do a quick check to ensure that the library was actually imported weak.
// If it wasn't, it doesn't make much sense to resolve its weak imports
// later on. Resolving them again is likely to be bad.
if (err == noErr) {
if ((importLibrary->options & kPEFWeakImportLibMask) == 0) {
err = cfragFragmentUsageErr;
}
}
// Now run the main relocation engine.
if (err == noErr) {
err = RunRelocationEngine(&fragToFix, importLibrary, lookup, refCon);
}
// Clean up.
if (fragToFix.disposeSectionPointers) {
if (fragToFix.fileRef != 0) {
junk = FSClose(fragToFix.fileRef);
MoreAssertQ(junk == noErr);
}
if (fragToFix.loaderSection != nil) {
DisposePtr( (Ptr) fragToFix.loaderSection);
MoreAssertQ(MemError() == noErr);
}
if (fragToFix.sectionHeaders != nil) {
DisposePtr( (Ptr) fragToFix.sectionHeaders);
MoreAssertQ(MemError() == noErr);
}
}
return err;
}
static pascal OSStatus FragmentLookup(ConstStr255Param symName, CFragSymbolClass symClass,
void **symAddr, void *refCon)
// This is the CFMLateImportLookupProc callback used when
// late importing from a CFM shared library.
{
OSStatus err;
CFragConnectionID connIDToImport;
CFragSymbolClass foundSymClass;
MoreAssertQ(symName != nil);
MoreAssertQ(symAddr != nil);
MoreAssertQ(refCon != nil);
connIDToImport = (CFragConnectionID) refCon;
// Shame there's no way to validate that connIDToImport is valid.
err = FindSymbol(connIDToImport, symName, (Ptr *) symAddr, &foundSymClass);
if (err == noErr) {
// If the symbol isn't of the right class, we act like we didn't
// find it, but also assert in the debug build because weird things
// are afoot.
if (foundSymClass != symClass) {
MoreAssertQ(false);
*symAddr = nil;
err = cfragNoSymbolErr;
}
}
return err;
}
extern pascal OSStatus CFMLateImportLibrary(const CFragSystem7DiskFlatLocator *fragToFixLocator,
CFragConnectionID fragToFixConnID,
CFragInitFunction fragToFixInitRoutine,
ConstStr255Param weakLinkedLibraryName,
CFragConnectionID connIDToImport)
// See comments in interface part.
{
MoreAssertQ(connIDToImport != nil);
return CFMLateImportCore(fragToFixLocator, fragToFixConnID, fragToFixInitRoutine,
weakLinkedLibraryName, FragmentLookup, connIDToImport);
}
static pascal OSStatus BundleLookup(ConstStr255Param symName, CFragSymbolClass symClass,
void **symAddr, void *refCon)
// This is the CFMLateImportLookupProc callback used when
// late importing from a CFBundle.
{
OSStatus err;
CFBundleRef bundleToImport;
CFStringRef symNameStr;
MoreAssertQ(symName != nil);
MoreAssertQ(symAddr != nil);
MoreAssertQ(refCon != nil);
symNameStr = nil;
bundleToImport = (CFBundleRef) refCon;
// Shame there's no way to validate that bundleToImport is really a bundle.
// We can only find function pointers because CFBundleGetFunctionPointerForName
// only works for function pointers. So if the client is asking for something
// other than a function pointer (ie TVector symbol) then we don't even true.
// Also assert in the debug build because this shows a certain lack of
// understanding on the part of the client.
//
// CF is being revise to support accessing data symbols using a new API
// (currently this is available to Apple internal developers as
// CFBundleGetDataPointerForName). When the new API is available in a
// public header file I should revise this code to lift this restriction.
err = noErr;
if (symClass != kTVectorCFragSymbol) {
MoreAssertQ(false);
err = cfragNoSymbolErr;
}
if (err == noErr) {
symNameStr = CFStringCreateWithPascalString(kCFAllocatorSystemDefault,
symName, kCFStringEncodingMacRoman);
if (symNameStr == nil) {
err = coreFoundationUnknownErr;
}
}
if (err == noErr) {
*symAddr = CFBundleGetFunctionPointerForName(bundleToImport, symNameStr);
if (*symAddr == nil) {
err = cfragNoSymbolErr;
}
}
if (symNameStr != nil) {
CFRelease(symNameStr);
}
return err;
}
extern pascal OSStatus CFMLateImportBundle(const CFragSystem7DiskFlatLocator *fragToFixLocator,
CFragConnectionID fragToFixConnID,
CFragInitFunction fragToFixInitRoutine,
ConstStr255Param weakLinkedLibraryName,
CFBundleRef bundleToImport)
// See comments in interface part.
{
MoreAssertQ(bundleToImport != nil);
return CFMLateImportCore(fragToFixLocator, fragToFixConnID, fragToFixInitRoutine,
weakLinkedLibraryName, BundleLookup, bundleToImport);
}
Mac/Modules/cg/CFMLateImport.h 0 → 100755
View file @ a9e17039
/*
File: CFMLateImport.h
Contains: Interface to CFM late import library.
Written by: Quinn
Copyright: Copyright © 1999 by Apple Computer, Inc., all rights reserved.
You may incorporate this Apple sample source code into your program(s) without
restriction. This Apple sample source code has been provided "AS IS" and the
responsibility for its operation is yours. You are not permitted to redistribute
this Apple sample source code as "Apple sample source code" after having made
changes. If you're going to re-distribute the source, we require that you make
it clear in the source that the code was descended from Apple sample source
code, but that you've made changes.
Change History (most recent first):
<6> 21/9/01 Quinn Changes for CWPro7 Mach-O build.
<5> 19/9/01 Quinn Change comments to reflect the fact that an unpacked data
section is no longer required.
<4> 19/9/01 Quinn Simplified API and implementation after a suggestion by Eric
Grant. You no longer have to CFM export a dummy function; you
can just pass in the address of your fragment's init routine.
<3> 16/11/00 Quinn Allow symbol finding via a callback and use that to implement
CFBundle support.
<2> 18/10/99 Quinn Renamed CFMLateImport to CFMLateImportLibrary to allow for
possible future API expansion.
<1> 15/6/99 Quinn First checked in.
*/
#pragma once
/////////////////////////////////////////////////////////////////
// MoreIsBetter Setup
//#include "MoreSetup.h"
// Mac OS Interfaces
#if ! MORE_FRAMEWORK_INCLUDES
#include <MacTypes.h>
#include <CodeFragments.h>
#include <Devices.h>
#include <CFBundle.h>
#endif
/////////////////////////////////////////////////////////////////
#ifdef __cplusplus
extern "C" {
#endif
/* FAQ
---
Q: What does this library do?
A: It allows you to resolve a weak linked library at runtime,
by supply a CFM connection to the library that should substitute
for the weak linked one.
Q: Does the substituted library have to have the same name as the
weak linked library.
A: No.
Q: What's this useful for?
A: The most obvious example of where this is useful is when
you rely on shared libraries that the user might delete
or move. To can find the shared library (possibly even
using CatSearch), call GetDiskFragment to open a connection
to it, late import it using this library, and then the
rest of your code can continue to use the shared library
as if nothing had happened. No more defining thousands
of stub routines which call through routine pointers.
There are, however, numerous less obvious uses. You can
use this code to make a 'self repairing' application. If
the user removes your shared library from the Extensions
folder, the startup code for your application can offer
tor re-install it. If the user agrees, you can then
re-install your shared library, late import it, and then
continue running your application if nothing happened.
You can even use this code to free yourself from the
Extensions folder entirely. Say you have a suite of
applications that currently installs a dozen shared
libraries in the Extensions folder. You can move those
libraries to another folder entirely and each application's
startup code can track down the library (using an alias
in the Preferences file) and late import it.
An even cooler use is to provide easy abstraction layers.
Say you have a network code for both the MacTCP
API and the Open Transport API. Typically, you would be
force to do this by having an abstraction layer where every
routine contains a switch between MacTCP and OT. Your
OpenSocket routine might look like:
static int OpenSocket(void)
{
if (gOTAvailable) {
return OpenSocketOT();
} else {
return OpenSocketMacTCP();
}
}
With this code, you can avoid that entirely. Simply
weak link to a shared library that you know is never
going to be implemented ("crea;MySocketsDummy") and then,
at runtime, decide whether the system has MacTCP or OT
and late import the relevant real implementation
("crea;MySocketsMacTCP" or "crea;MySocketsOT").
One benefit of this approach is that only the MacTCP or
the OT code is resident in memory on any given system.
*/
typedef pascal OSStatus (*CFMLateImportLookupProc)(ConstStr255Param symName, CFragSymbolClass symClass,
void **symAddr, void *refCon);
// CFMLateImportLookupProc defines a callback for CFMLateImportCore.
// The routine is expected to look up the address of the symbol named
// symName and return it in *symAddr. The symbol should be of class
// symClass, although the callback decides whether a class mismatch is
// an error. refCon is an application defined value that was originally
// passed in to CFMLateImportCore.
//
// If this routine returns an error, a symbol address of 0 is assumed.
// If the symbol is marked as a weak import, the CFMLateImportCore will
// continue, otherwise the CFMLateImportCore routine will fail with the
// error.
extern pascal OSStatus CFMLateImportCore(const CFragSystem7DiskFlatLocator *fragToFixLocator,
CFragConnectionID fragToFixConnID,
CFragInitFunction fragToFixInitRoutine,
ConstStr255Param weakLinkedLibraryName,
CFMLateImportLookupProc lookup,
void *refCon);
// This routine will link you, at runtime, to some library
// that you were weak linked to and wasn't present when your
// fragment was prepared. As well as the obvious functionality
// of being able to resolve weak links after prepare time,
// this functionality can be put to a number of less obvious uses,
// some of which are discussed at the top of this header file.
//
// To call this routine, you need a number of pieces of information:
//
// 1. fragToFixLocator, fragToFixConnID: The location of your own
// code fragment on disk and the CFM connection ID to your own
// code fragment. Typically you get this information from your
// fragment's CFM init routine. You must ensure that
// fragToFixLocator->fileSpec points to an FSSpec of the
// file which holds your code fragment.
//
// IMPORTANT:
// The fact that you pass in a CFragSystem7DiskFlatLocator as the
// fragToFixLocator implies that the fragment to be fixed up must
// be in the data fork of a file. The code could be modified
// to remove this requirement, but on disk code fragments are the most
// common case.
//
// IMPORTANT:
// The fragment to fix may have a packed data section. Packing the
// data section will reduce the size of your fragment on disk, but it
// will significantly increase the memory needed by this routine
// (it increases memory usage by the sum of the sizes of the packed
// and unpacked data section). See below for instructions on how to
// create an unpacked data section.
//
// 2. fragToFixInitRoutine: A pointer to your own code fragment's
// fragment initialiser routine. You necessarily have one of these
// because you need it to get values for the fragToFixLocator and
// fragToFixConnID parameters. Just pass its address in as a parameter
// as well.
//
// 3. weakLinkedLibraryName: The name of the weak linked library which
// failed to link. You must have weak linked to this library.
// It is oxymoric for you to pass a strong linked library here,
// because your code would not have prepared if a strong linked
// library failed to prepare, and so you couldn't supply a valid
/// fragToFix.
//
// 4. lookup, refCon: A pointer to a callback function that the
// routine calls to look up the address of a symbol, and a refCon
// for that callback routine.
//
// Note:
// The fragToFixLocator and fragToFixInitRoutine parameters
// are artifacts of the way in which this functionality is implemented.
// In an ideal world, where CFM exported decent introspection APIs
// to third party developers, these parameters would not be necessary.
// If you're using this code inside Apple, you probably should investigate
// using the CFM private APIs for getting at the information these
// parameters are needed for. See the comments inside the implementation
// for more details.
//
// Note:
// The extra memory taken when you use a packed data section is also an
// artifact of my workaround for the lack of CFM introspection APIs. In
// my opinion it's better to use an unpacked data section and consume more
// space on disk while saving memory. In CodeWarrior you can switch to an
// unpacked data section by checking the "Expand Uninitialized Data"
// checkbox in the "PPC PEF" settings panel. In MPW, specified the
// "-packdata off" option to PPCLink.
//
// When the routine returns, any symbols that you imported from the
// library named weakLinkedLibraryName will be resolved to the address
// of the symbol provided by the "lookup" callback routine.
//
// It is possible for an unresolved import to remain unresolved after
// this routine returns. If the symbol import is marked as weak (as
// opposed to the library, which *must* be marked as weak) and the symbol
// is not found by the "lookup" callback, the routine will simple skip
// that symbol. If the symbol isn't marked as weak, the routine will fail
// in that case.
//
// Most of the possible error results are co-opted CFM errors. These
// include:
//
// cfragFragmentFormatErr -- The fragment to fix is is an unknown format.
// cfragNoSectionErr -- Could not find the loader section in the fragment to fix.
// cfragNoLibraryErr -- The fragment to fix is not weak linked to weakLinkedLibraryName.
// cfragFragmentUsageErr -- The fragment to fix doesn't have a data section.
// -- The fragment to fix is strong linked to weakLinkedLibraryName.
// -- The fragment doesn't have an init routine.
// cfragFragmentCorruptErr -- Encountered an undefined relocation opcode.
// unimpErr -- Encountered an unimplement relocation opcode. The
// relocation engine only implements a subset of the CFM
// relocation opcodes, the subset most commonly used by
// MPW and CodeWarrior PEF containers. If you encounter
// this error, you'll probably have to add the weird
// relocation opcode to the engine, which shouldn't be
// be too hard.
// memFullErr -- It's likely that this error is triggered by the memory
// needed to unpack your data section. Either make your
// data section smaller, or unpack it (see above).
// errors returned by FindSymbol
// errors returned by Memory Manager
//
// The routine needs enough memory to hold the loader section of the fragment
// to fix in memory. It allocates that memory using NewPtr and dispsoses of
// it before it returns. You may want to change the memory allocator, which
// is very simple.
extern pascal OSStatus CFMLateImportLibrary(const CFragSystem7DiskFlatLocator *fragToFixLocator,
CFragConnectionID fragToFixConnID,
CFragInitFunction fragToFixInitRoutine,
ConstStr255Param weakLinkedLibraryName,
CFragConnectionID connIDToImport);
// A wrapper around CFMLateImportCore that looks up symbols by calling
// FindSymbol on a connection to a CFM library (connIDToImport).
// You can get this connection ID through any standard CFM API, for example
// GetSharedLibrary, GetDiskFragment, or GetMemFragment.
//
// IMPORTANT:
// The fragment name for connIDToImport *does not* have to match
// weakLinkedLibraryName. This is part of the power of this library.
extern pascal OSStatus CFMLateImportBundle(const CFragSystem7DiskFlatLocator *fragToFixLocator,
CFragConnectionID fragToFixConnID,
CFragInitFunction fragToFixInitRoutine,
ConstStr255Param weakLinkedLibraryName,
CFBundleRef bundleToImport);
// A wrapper around CFMLateImportCore that looks up symbols by calling
// CFBundleGetFunctionPointerForName on a reference to a Core Foundation
// bundle (bundleToImport). You can get this reference through any
// Core Foundation bundle API, for example CFBundleCreate.
#ifdef __cplusplus
}
#endif
Mac/Modules/cg/CGStubLib 0 → 100755
View file @ a9e17039
(This file must be converted with BinHex 4.0) :!!"cG(9L69"6)!#3"!L3!!!!!BUjr%T[H5&`C@CQF(G`B`!!!!'i-rHh!*!0!3# 3"[q3"!#3$JJm!!!!8!3"!*!1rj!%!*!%rj!%!*!%rj!%!*!A1!!!"2!!!!!$!!! !1N0(3fpZG'9iG&0SEhG8CAKd3A43EfPZG%0(3fpZG'9iG&0SEhG8CAKd3dG$Efj dCAKd8f9XC@0d4QpZG%0(3fpZG'9iG&0PG&4PH(4%FQ&hD@jR6@pNC80(3fpZG'9 iG%4bBAG3BA4S3dG$EfjdCAKd8f9d6'PZC8T[D@j$4d0[ER4PH(46CA4-D@jP3f& `3dG$EfjdCAKd4f9d9'9iG&"[FfPdD@pZ3dG$EfjdCAKd4f9d8'&dD%0eFR*PER4 3EfPZG%0(3fpZG'9iG&0PG&0SEh9XC%&ZG'PKE'PKFd0(3fpZG'9iG&0jEQ0SFQp ZDATP3dG$EfjdCAKd4QaeFfK$4d0[ER4PH(4&EQ43B@GP3dG$EfjdCAKd8f9d4Qp ZG&0THQ9$4d0[ER4PH(4(CA48CAKd6@&dFQPi3dG$EfjdCAKd8f9d9'9iG%eKG(* TH%0(3fpZG'9iG&0PG&4PH(43Eh0TG'P[EN0(3fpZG'9iG&0PG%0SBA*KBh4PFP0 `B@0TEQG$4d0[ER4PH(46CA4$69P,8h4bEfYP3fpXEh*$4d0[ER4PH(46CA4$69P ,4QPXE%0[E'pb3dG$EfjdCAKd8f9d8NG#8h4bEfYP3fpXEh*$4d0[ER4PH(46CA4 54d*'D@aX3fpXEh*$4d0[ER4PH(46CA4(FQ&j8h4bEfYP3fpXEh*$4d0[ER4PH(4 6CA4(FQ&j4QPXE%0[E'pb3dG$EfjdCAKd3faTF&4[8Q9MG%0(3fpZG'9iG%923fa TF%0(3fpZG'9iG%0XDA"$4d0[ER4PH(4$E'9KFP*PBh4$4d0[ER4PH(46G(*[Df9 5C@0d9fPdD&GTC(4S3dG$EfjdCAKd8h4bEfYP8Q9MG%0(3fpZG'9iG%CTE'a5C@0 d3dG$EfjdCAKd8h4bEfYP8'&dD%0(3fpZG'9iG%924QPXE&"KG'K$4d0[ER4PH(4 'D@aX8'&dD%0(3fpZG'9iG%GPG&"KG'K#Eh9ZC'PZCd*[H%0(3fpZG'9iG%Pc8'& dD%9YF(4j3dG$EfjdCAKd3@4N3A*M9'p3EfPZG%0(3fpZG'9iG%&NC%&bBd0(3fp ZG'9iG%&NC&*PBh4$4d0[ER4PH(4$E'pcC9"KG'K$4d0[ER4PH(4"C'44G@&N3h9 bGQ98Ee"[D@jd3dG$EfjdCAKd3@4N3h9bGQ98Ee"[D@jd3dG$EfjdCAKd3@4N6'P ZC94[8'pTER4$4d0[ER4PH(40EhCP9'p3EfPZG%0(3fpZG'9iG%*PCfPZ8'&dD%0 (3fpZG'9iG&0PG%&XF'KK3dG$EfjdCAKd8f9d4QaKG'jPFh0$4d0[ER4PH(46CA4 0DA4PFNaTE@Pd3dG$EfjdCAKd8f9d6'PZC9GTC(4S3dG$EfjdCAKd4f9d3e403dG $EfjdCAKd3fpZBf&d3e403dG$EfjdCAKd8QpdBA4P3e403dG$EfjdCAKd9(*KER0 XBA4P3e403dG$EfjdCAKd8f0KE'9$9%e$4d0[ER4PH(45CA0dEh*P4e0dBA4P3dG $EfjdCAKd8f&fC8G6G'&dC80(3fpZG'9iG&*PE'9KFf9$FQ9KG'9$4d0[ER4PH(4 'Eh*3Eh*d!*!%)!!!!#J!#!!X!")!&!!G!"`!)J!F!#N!(!!`!!`!0`!BrD3!()G E!"$KGJ!2F0)!%S6f!"X(8J!@+$m!%Er*!"3)b!!B18%!%TFP!"4133!6*YS!&QJ q!"`5j3!6+b8!%FZX!!ijfJ!E40N!%FBC!!pc5`!83A3!%1#[!"BVd!!4bhd!%ab 3!!!83a!!&Nmd!"S9CJ!B@h8!'pSB!"4$r!!6,PJ!&IIe!"QcA`!6,A)!%S40!"@ 4"!!C[em!(!eJ!"+&B!!B'J8!$h&S!"XE+!!4[r-!%r"c!"BZe`!6,@J!'&Y`!"+ (m!!0R!B!('d8!"Gd9!!E00d!%142!"3ae3!4bj`!&UJa!J#3"rrq!J!"D!#3"2r q!J!$+J#3"2rq!J!$'`#3"2rq!J!#63#3"2rq!J!#eJ#3"2rq!J!"1J#3"2rq!J! #a3#3"2rq!J!#m3#3"2rq!J!"dJ#3"2rq!J!%,J#3"2rq!J!!D!#3"2rq!J!!I!# 3"2rq!J!"*!#3"2rq!J!!T`#3"2rq!J!%I!#3"2rq!J!%93#3"2rq!J!!mJ#3"2r q!J!"kJ#3"2rq!J!!9`#3"2rq!J!#-3#3"2rq!J!!hJ#3"2rq!J!"!*!&rri#!!- &!*!%rri#!!!B!*!%rri#!!!T!*!%rri#!!21!*!%rri#!!4Q!*!%rri#!!'i!*! %rri#!!#2!*!%rri#!!!m!*!%rri#!!%3!*!%rri#!!+b!*!%rri#!!4!!*!%rri #!!'I!*!%rri#!!*l!*!%rri#!!3F!*!%rri#!!2i!*!%rri#!!)&!*!%rri#!!* I!*!%rri#!!-k!*!%rri#!!0S!*!%rri#!!30!*!%rri#!!$$!*!%rri#!!+1!*! %rri#!!)H!*!%rri#!!2L!*!%rri#!!+I!*!%rri#!!&3!*!%rri#!!1V!*!%rri #!!*!!*!%rri#!!0-!*!%rri#!!1!!*!%rri#!!'%!*!%rri#!!52!*!%rri#!!1 A!*!%rri#!!1p!*!%rri#!!5I!*!%rri!N!3E2!!!!3!!!!&B!!!!@!!!!$)!N20 8!*!,!3#3%`&`Gh"M!*!5!`%!N"%d#80(8h4eBNaTBJ!!!3!!!!&B!!!!@!!!!$* 66e*8"*B!J!!F!$)!!'0QFQF!!!!+!!$rr`#3#2Ib:
\ No newline at end of file
Mac/Modules/cg/CGStubLib.exp 0 → 100755
View file @ a9e17039
CGContextShowTextAtPoint
CGContextShowText
CGContextSelectFont
CGContextSetTextDrawingMode
CGContextDrawPath
CGContextSetLineJoin
CGContextSetLineCap
CGContextGetTextPosition
CGContextGetPathCurrentPoint
CGContextSetShouldAntialias
CGContextSynchronize
CGContextFlush
CGContextEndPage
CGContextSetFontSize
CGContextGetTextMatrix
CGContextSetTextMatrix
CGContextSetTextPosition
CGContextSetCharacterSpacing
CGContextSetCMYKStrokeColor
CGContextSetCMYKFillColor
CGContextSetRGBStrokeColor
CGContextSetRGBFillColor
CGContextSetGrayStrokeColor
CGContextSetGrayFillColor
CGContextClipToRect
CGContextEOClip
CGContextClip
CGContextClearRect
CGContextStrokeRectWithWidth
CGContextStrokeRect
CGContextFillRect
CGContextStrokePath
CGContextEOFillPath
CGContextFillPath
CGContextGetPathBoundingBox
CGContextIsPathEmpty
CGContextAddArcToPoint
CGContextAddArc
CGContextAddRect
CGContextClosePath
CGContextAddQuadCurveToPoint
CGContextAddCurveToPoint
CGContextAddLineToPoint
CGContextMoveToPoint
CGContextBeginPath
CGContextSetAlpha
CGContextSetFlatness
CGContextSetMiterLimit
CGContextSetLineWidth
CGContextGetCTM
CGContextConcatCTM
CGContextRotateCTM
CGContextTranslateCTM
CGContextScaleCTM
CGContextRestoreGState
CGContextSaveGState
CGContextRelease
CreateCGContextForPort
Mac/Modules/cg/CGStubLib.readme 0 → 100755
View file @ a9e17039
# CGStubLib was created by issuing this command in MPW:
MakeStub CGStubLib.exp -o CGStubLib
Mac/Modules/cg/_CGmodule.c 0 → 100755
View file @ a9e17039
/* =========================== Module _CG =========================== */
#include "Python.h"
#include "macglue.h"
#include "pymactoolbox.h"
/* Macro to test whether a weak-loaded CFM function exists */
#define PyMac_PRECHECK(rtn) do { if ( &rtn == NULL ) {\
PyErr_SetString(PyExc_NotImplementedError, \
"Not available in this shared library/OS version"); \
return NULL; \
}} while(0)
#ifdef WITHOUT_FRAMEWORKS
#include <Quickdraw.h>
#include <CGContext.h>
#else
#include <CoreGraphics/CoreGraphics.h>
#endif
#if !TARGET_API_MAC_OSX
/* This code is adapted from the CallMachOFramework demo at:
http://developer.apple.com/samplecode/Sample_Code/Runtime_Architecture/CallMachOFramework.htm
It allows us to call Mach-O functions from CFM apps. */
#include <Folders.h>
#include "CFMLateImport.h"
static OSStatus LoadFrameworkBundle(CFStringRef framework, CFBundleRef *bundlePtr)
// This routine finds a the named framework and creates a CFBundle
// object for it. It looks for the framework in the frameworks folder,
// as defined by the Folder Manager. Currently this is
// "/System/Library/Frameworks", but we recommend that you avoid hard coded
// paths to ensure future compatibility.
//
// You might think that you could use CFBundleGetBundleWithIdentifier but
// that only finds bundles that are already loaded into your context.
// That would work in the case of the System framework but it wouldn't
// work if you're using some other, less-obvious, framework.
{
OSStatus err;
FSRef frameworksFolderRef;
CFURLRef baseURL;
CFURLRef bundleURL;
*bundlePtr = nil;
baseURL = nil;
bundleURL = nil;
// Find the frameworks folder and create a URL for it.
err = FSFindFolder(kOnAppropriateDisk, kFrameworksFolderType, true, &frameworksFolderRef);
if (err == noErr) {
baseURL = CFURLCreateFromFSRef(kCFAllocatorSystemDefault, &frameworksFolderRef);
if (baseURL == nil) {
err = coreFoundationUnknownErr;
}
}
// Append the name of the framework to the URL.
if (err == noErr) {
bundleURL = CFURLCreateCopyAppendingPathComponent(kCFAllocatorSystemDefault, baseURL, framework, false);
if (bundleURL == nil) {
err = coreFoundationUnknownErr;
}
}
// Create a bundle based on that URL and load the bundle into memory.
// We never unload the bundle, which is reasonable in this case because
// the sample assumes that you'll be calling functions from this
// framework throughout the life of your application.
if (err == noErr) {
*bundlePtr = CFBundleCreate(kCFAllocatorSystemDefault, bundleURL);
if (*bundlePtr == nil) {
err = coreFoundationUnknownErr;
}
}
if (err == noErr) {
if ( ! CFBundleLoadExecutable( *bundlePtr ) ) {
err = coreFoundationUnknownErr;
}
}
// Clean up.
if (err != noErr && *bundlePtr != nil) {
CFRelease(*bundlePtr);
*bundlePtr = nil;
}
if (bundleURL != nil) {
CFRelease(bundleURL);
}
if (baseURL != nil) {
CFRelease(baseURL);
}
return err;
}
// The CFMLateImport approach requires that you define a fragment
// initialisation routine that latches the fragment's connection
// ID and locator. If your code already has a fragment initialiser
// you will have to integrate the following into it.
static CFragConnectionID gFragToFixConnID;
static FSSpec gFragToFixFile;
static CFragSystem7DiskFlatLocator gFragToFixLocator;
extern OSErr FragmentInit(const CFragInitBlock *initBlock);
extern OSErr FragmentInit(const CFragInitBlock *initBlock)
{
__initialize(initBlock); /* call the "original" initializer */
gFragToFixConnID = (CFragConnectionID) initBlock->closureID;
gFragToFixFile = *(initBlock->fragLocator.u.onDisk.fileSpec);
gFragToFixLocator = initBlock->fragLocator.u.onDisk;
gFragToFixLocator.fileSpec = &gFragToFixFile;
return noErr;
}
#endif
extern int GrafObj_Convert(PyObject *, GrafPtr *);
/*
** Manual converters
*/
PyObject *CGPoint_New(CGPoint *itself)
{
return Py_BuildValue("(ff)",
itself->x,
itself->y);
}
int
CGPoint_Convert(PyObject *v, CGPoint *p_itself)
{
if( !PyArg_Parse(v, "(ff)",
&p_itself->x,
&p_itself->y) )
return 0;
return 1;
}
PyObject *CGRect_New(CGRect *itself)
{
return Py_BuildValue("(ffff)",
itself->origin.x,
itself->origin.y,
itself->size.width,
itself->size.height);
}
int
CGRect_Convert(PyObject *v, CGRect *p_itself)
{
if( !PyArg_Parse(v, "(ffff)",
&p_itself->origin.x,
&p_itself->origin.y,
&p_itself->size.width,
&p_itself->size.height) )
return 0;
return 1;
}
PyObject *CGAffineTransform_New(CGAffineTransform *itself)
{
return Py_BuildValue("(ffffff)",
itself->a,
itself->b,
itself->c,
itself->d,
itself->tx,
itself->ty);
}
int
CGAffineTransform_Convert(PyObject *v, CGAffineTransform *p_itself)
{
if( !PyArg_Parse(v, "(ffffff)",
&p_itself->a,
&p_itself->b,
&p_itself->c,
&p_itself->d,
&p_itself->tx,
&p_itself->ty) )
return 0;
return 1;
}
static PyObject *CG_Error;
/* -------------------- Object type CGContextRef -------------------- */
PyTypeObject CGContextRef_Type;
#define CGContextRefObj_Check(x) ((x)->ob_type == &CGContextRef_Type)
typedef struct CGContextRefObject {
PyObject_HEAD
CGContextRef ob_itself;
} CGContextRefObject;
PyObject *CGContextRefObj_New(CGContextRef itself)
{
CGContextRefObject *it;
it = PyObject_NEW(CGContextRefObject, &CGContextRef_Type);
if (it == NULL) return NULL;
it->ob_itself = itself;
return (PyObject *)it;
}
int CGContextRefObj_Convert(PyObject *v, CGContextRef *p_itself)
{
if (!CGContextRefObj_Check(v))
{
PyErr_SetString(PyExc_TypeError, "CGContextRef required");
return 0;
}
*p_itself = ((CGContextRefObject *)v)->ob_itself;
return 1;
}
static void CGContextRefObj_dealloc(CGContextRefObject *self)
{
CGContextRelease(self->ob_itself);
PyMem_DEL(self);
}
static PyObject *CGContextRefObj_CGContextSaveGState(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
if (!PyArg_ParseTuple(_args, ""))
return NULL;
CGContextSaveGState(_self->ob_itself);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextRestoreGState(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
if (!PyArg_ParseTuple(_args, ""))
return NULL;
CGContextRestoreGState(_self->ob_itself);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextScaleCTM(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
float sx;
float sy;
if (!PyArg_ParseTuple(_args, "ff",
&sx,
&sy))
return NULL;
CGContextScaleCTM(_self->ob_itself,
sx,
sy);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextTranslateCTM(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
float tx;
float ty;
if (!PyArg_ParseTuple(_args, "ff",
&tx,
&ty))
return NULL;
CGContextTranslateCTM(_self->ob_itself,
tx,
ty);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextRotateCTM(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
float angle;
if (!PyArg_ParseTuple(_args, "f",
&angle))
return NULL;
CGContextRotateCTM(_self->ob_itself,
angle);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextConcatCTM(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
CGAffineTransform transform;
if (!PyArg_ParseTuple(_args, "O&",
CGAffineTransform_Convert, &transform))
return NULL;
CGContextConcatCTM(_self->ob_itself,
transform);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextGetCTM(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
CGAffineTransform _rv;
if (!PyArg_ParseTuple(_args, ""))
return NULL;
_rv = CGContextGetCTM(_self->ob_itself);
_res = Py_BuildValue("O&",
CGAffineTransform_New, &_rv);
return _res;
}
static PyObject *CGContextRefObj_CGContextSetLineWidth(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
float width;
if (!PyArg_ParseTuple(_args, "f",
&width))
return NULL;
CGContextSetLineWidth(_self->ob_itself,
width);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextSetLineCap(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
int cap;
if (!PyArg_ParseTuple(_args, "i",
&cap))
return NULL;
CGContextSetLineCap(_self->ob_itself,
cap);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextSetLineJoin(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
int join;
if (!PyArg_ParseTuple(_args, "i",
&join))
return NULL;
CGContextSetLineJoin(_self->ob_itself,
join);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextSetMiterLimit(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
float limit;
if (!PyArg_ParseTuple(_args, "f",
&limit))
return NULL;
CGContextSetMiterLimit(_self->ob_itself,
limit);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextSetFlatness(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
float flatness;
if (!PyArg_ParseTuple(_args, "f",
&flatness))
return NULL;
CGContextSetFlatness(_self->ob_itself,
flatness);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextSetAlpha(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
float alpha;
if (!PyArg_ParseTuple(_args, "f",
&alpha))
return NULL;
CGContextSetAlpha(_self->ob_itself,
alpha);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextBeginPath(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
if (!PyArg_ParseTuple(_args, ""))
return NULL;
CGContextBeginPath(_self->ob_itself);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextMoveToPoint(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
float x;
float y;
if (!PyArg_ParseTuple(_args, "ff",
&x,
&y))
return NULL;
CGContextMoveToPoint(_self->ob_itself,
x,
y);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextAddLineToPoint(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
float x;
float y;
if (!PyArg_ParseTuple(_args, "ff",
&x,
&y))
return NULL;
CGContextAddLineToPoint(_self->ob_itself,
x,
y);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextAddCurveToPoint(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
float cp1x;
float cp1y;
float cp2x;
float cp2y;
float x;
float y;
if (!PyArg_ParseTuple(_args, "ffffff",
&cp1x,
&cp1y,
&cp2x,
&cp2y,
&x,
&y))
return NULL;
CGContextAddCurveToPoint(_self->ob_itself,
cp1x,
cp1y,
cp2x,
cp2y,
x,
y);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextAddQuadCurveToPoint(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
float cpx;
float cpy;
float x;
float y;
if (!PyArg_ParseTuple(_args, "ffff",
&cpx,
&cpy,
&x,
&y))
return NULL;
CGContextAddQuadCurveToPoint(_self->ob_itself,
cpx,
cpy,
x,
y);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextClosePath(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
if (!PyArg_ParseTuple(_args, ""))
return NULL;
CGContextClosePath(_self->ob_itself);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextAddRect(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
CGRect rect;
if (!PyArg_ParseTuple(_args, "O&",
CGRect_Convert, &rect))
return NULL;
CGContextAddRect(_self->ob_itself,
rect);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextAddArc(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
float x;
float y;
float radius;
float startAngle;
float endAngle;
int clockwise;
if (!PyArg_ParseTuple(_args, "fffffi",
&x,
&y,
&radius,
&startAngle,
&endAngle,
&clockwise))
return NULL;
CGContextAddArc(_self->ob_itself,
x,
y,
radius,
startAngle,
endAngle,
clockwise);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextAddArcToPoint(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
float x1;
float y1;
float x2;
float y2;
float radius;
if (!PyArg_ParseTuple(_args, "fffff",
&x1,
&y1,
&x2,
&y2,
&radius))
return NULL;
CGContextAddArcToPoint(_self->ob_itself,
x1,
y1,
x2,
y2,
radius);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextIsPathEmpty(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
int _rv;
if (!PyArg_ParseTuple(_args, ""))
return NULL;
_rv = CGContextIsPathEmpty(_self->ob_itself);
_res = Py_BuildValue("i",
_rv);
return _res;
}
static PyObject *CGContextRefObj_CGContextGetPathCurrentPoint(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
CGPoint _rv;
if (!PyArg_ParseTuple(_args, ""))
return NULL;
_rv = CGContextGetPathCurrentPoint(_self->ob_itself);
_res = Py_BuildValue("O&",
CGPoint_New, &_rv);
return _res;
}
static PyObject *CGContextRefObj_CGContextGetPathBoundingBox(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
CGRect _rv;
if (!PyArg_ParseTuple(_args, ""))
return NULL;
_rv = CGContextGetPathBoundingBox(_self->ob_itself);
_res = Py_BuildValue("O&",
CGRect_New, &_rv);
return _res;
}
static PyObject *CGContextRefObj_CGContextDrawPath(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
int mode;
if (!PyArg_ParseTuple(_args, "i",
&mode))
return NULL;
CGContextDrawPath(_self->ob_itself,
mode);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextFillPath(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
if (!PyArg_ParseTuple(_args, ""))
return NULL;
CGContextFillPath(_self->ob_itself);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextEOFillPath(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
if (!PyArg_ParseTuple(_args, ""))
return NULL;
CGContextEOFillPath(_self->ob_itself);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextStrokePath(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
if (!PyArg_ParseTuple(_args, ""))
return NULL;
CGContextStrokePath(_self->ob_itself);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextFillRect(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
CGRect rect;
if (!PyArg_ParseTuple(_args, "O&",
CGRect_Convert, &rect))
return NULL;
CGContextFillRect(_self->ob_itself,
rect);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextStrokeRect(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
CGRect rect;
if (!PyArg_ParseTuple(_args, "O&",
CGRect_Convert, &rect))
return NULL;
CGContextStrokeRect(_self->ob_itself,
rect);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextStrokeRectWithWidth(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
CGRect rect;
float width;
if (!PyArg_ParseTuple(_args, "O&f",
CGRect_Convert, &rect,
&width))
return NULL;
CGContextStrokeRectWithWidth(_self->ob_itself,
rect,
width);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextClearRect(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
CGRect rect;
if (!PyArg_ParseTuple(_args, "O&",
CGRect_Convert, &rect))
return NULL;
CGContextClearRect(_self->ob_itself,
rect);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextClip(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
if (!PyArg_ParseTuple(_args, ""))
return NULL;
CGContextClip(_self->ob_itself);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextEOClip(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
if (!PyArg_ParseTuple(_args, ""))
return NULL;
CGContextEOClip(_self->ob_itself);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextClipToRect(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
CGRect rect;
if (!PyArg_ParseTuple(_args, "O&",
CGRect_Convert, &rect))
return NULL;
CGContextClipToRect(_self->ob_itself,
rect);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextSetGrayFillColor(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
float gray;
float alpha;
if (!PyArg_ParseTuple(_args, "ff",
&gray,
&alpha))
return NULL;
CGContextSetGrayFillColor(_self->ob_itself,
gray,
alpha);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextSetGrayStrokeColor(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
float gray;
float alpha;
if (!PyArg_ParseTuple(_args, "ff",
&gray,
&alpha))
return NULL;
CGContextSetGrayStrokeColor(_self->ob_itself,
gray,
alpha);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextSetRGBFillColor(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
float r;
float g;
float b;
float alpha;
if (!PyArg_ParseTuple(_args, "ffff",
&r,
&g,
&b,
&alpha))
return NULL;
CGContextSetRGBFillColor(_self->ob_itself,
r,
g,
b,
alpha);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextSetRGBStrokeColor(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
float r;
float g;
float b;
float alpha;
if (!PyArg_ParseTuple(_args, "ffff",
&r,
&g,
&b,
&alpha))
return NULL;
CGContextSetRGBStrokeColor(_self->ob_itself,
r,
g,
b,
alpha);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextSetCMYKFillColor(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
float c;
float m;
float y;
float k;
float alpha;
if (!PyArg_ParseTuple(_args, "fffff",
&c,
&m,
&y,
&k,
&alpha))
return NULL;
CGContextSetCMYKFillColor(_self->ob_itself,
c,
m,
y,
k,
alpha);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextSetCMYKStrokeColor(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
float c;
float m;
float y;
float k;
float alpha;
if (!PyArg_ParseTuple(_args, "fffff",
&c,
&m,
&y,
&k,
&alpha))
return NULL;
CGContextSetCMYKStrokeColor(_self->ob_itself,
c,
m,
y,
k,
alpha);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextSetCharacterSpacing(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
float spacing;
if (!PyArg_ParseTuple(_args, "f",
&spacing))
return NULL;
CGContextSetCharacterSpacing(_self->ob_itself,
spacing);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextSetTextPosition(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
float x;
float y;
if (!PyArg_ParseTuple(_args, "ff",
&x,
&y))
return NULL;
CGContextSetTextPosition(_self->ob_itself,
x,
y);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextGetTextPosition(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
CGPoint _rv;
if (!PyArg_ParseTuple(_args, ""))
return NULL;
_rv = CGContextGetTextPosition(_self->ob_itself);
_res = Py_BuildValue("O&",
CGPoint_New, &_rv);
return _res;
}
static PyObject *CGContextRefObj_CGContextSetTextMatrix(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
CGAffineTransform transform;
if (!PyArg_ParseTuple(_args, "O&",
CGAffineTransform_Convert, &transform))
return NULL;
CGContextSetTextMatrix(_self->ob_itself,
transform);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextGetTextMatrix(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
CGAffineTransform _rv;
if (!PyArg_ParseTuple(_args, ""))
return NULL;
_rv = CGContextGetTextMatrix(_self->ob_itself);
_res = Py_BuildValue("O&",
CGAffineTransform_New, &_rv);
return _res;
}
static PyObject *CGContextRefObj_CGContextSetTextDrawingMode(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
int mode;
if (!PyArg_ParseTuple(_args, "i",
&mode))
return NULL;
CGContextSetTextDrawingMode(_self->ob_itself,
mode);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextSetFontSize(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
float size;
if (!PyArg_ParseTuple(_args, "f",
&size))
return NULL;
CGContextSetFontSize(_self->ob_itself,
size);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextSelectFont(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
char * name;
float size;
int textEncoding;
if (!PyArg_ParseTuple(_args, "sfi",
&name,
&size,
&textEncoding))
return NULL;
CGContextSelectFont(_self->ob_itself,
name,
size,
textEncoding);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextShowText(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
char *cstring__in__;
long cstring__len__;
int cstring__in_len__;
if (!PyArg_ParseTuple(_args, "s#",
&cstring__in__, &cstring__in_len__))
return NULL;
cstring__len__ = cstring__in_len__;
CGContextShowText(_self->ob_itself,
cstring__in__, cstring__len__);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextShowTextAtPoint(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
float x;
float y;
char *cstring__in__;
long cstring__len__;
int cstring__in_len__;
if (!PyArg_ParseTuple(_args, "ffs#",
&x,
&y,
&cstring__in__, &cstring__in_len__))
return NULL;
cstring__len__ = cstring__in_len__;
CGContextShowTextAtPoint(_self->ob_itself,
x,
y,
cstring__in__, cstring__len__);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextEndPage(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
if (!PyArg_ParseTuple(_args, ""))
return NULL;
CGContextEndPage(_self->ob_itself);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextFlush(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
if (!PyArg_ParseTuple(_args, ""))
return NULL;
CGContextFlush(_self->ob_itself);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextSynchronize(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
if (!PyArg_ParseTuple(_args, ""))
return NULL;
CGContextSynchronize(_self->ob_itself);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyObject *CGContextRefObj_CGContextSetShouldAntialias(CGContextRefObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
int shouldAntialias;
if (!PyArg_ParseTuple(_args, "i",
&shouldAntialias))
return NULL;
CGContextSetShouldAntialias(_self->ob_itself,
shouldAntialias);
Py_INCREF(Py_None);
_res = Py_None;
return _res;
}
static PyMethodDef CGContextRefObj_methods[] = {
{"CGContextSaveGState", (PyCFunction)CGContextRefObj_CGContextSaveGState, 1,
"() -> None"},
{"CGContextRestoreGState", (PyCFunction)CGContextRefObj_CGContextRestoreGState, 1,
"() -> None"},
{"CGContextScaleCTM", (PyCFunction)CGContextRefObj_CGContextScaleCTM, 1,
"(float sx, float sy) -> None"},
{"CGContextTranslateCTM", (PyCFunction)CGContextRefObj_CGContextTranslateCTM, 1,
"(float tx, float ty) -> None"},
{"CGContextRotateCTM", (PyCFunction)CGContextRefObj_CGContextRotateCTM, 1,
"(float angle) -> None"},
{"CGContextConcatCTM", (PyCFunction)CGContextRefObj_CGContextConcatCTM, 1,
"(CGAffineTransform transform) -> None"},
{"CGContextGetCTM", (PyCFunction)CGContextRefObj_CGContextGetCTM, 1,
"() -> (CGAffineTransform _rv)"},
{"CGContextSetLineWidth", (PyCFunction)CGContextRefObj_CGContextSetLineWidth, 1,
"(float width) -> None"},
{"CGContextSetLineCap", (PyCFunction)CGContextRefObj_CGContextSetLineCap, 1,
"(int cap) -> None"},
{"CGContextSetLineJoin", (PyCFunction)CGContextRefObj_CGContextSetLineJoin, 1,
"(int join) -> None"},
{"CGContextSetMiterLimit", (PyCFunction)CGContextRefObj_CGContextSetMiterLimit, 1,
"(float limit) -> None"},
{"CGContextSetFlatness", (PyCFunction)CGContextRefObj_CGContextSetFlatness, 1,
"(float flatness) -> None"},
{"CGContextSetAlpha", (PyCFunction)CGContextRefObj_CGContextSetAlpha, 1,
"(float alpha) -> None"},
{"CGContextBeginPath", (PyCFunction)CGContextRefObj_CGContextBeginPath, 1,
"() -> None"},
{"CGContextMoveToPoint", (PyCFunction)CGContextRefObj_CGContextMoveToPoint, 1,
"(float x, float y) -> None"},
{"CGContextAddLineToPoint", (PyCFunction)CGContextRefObj_CGContextAddLineToPoint, 1,
"(float x, float y) -> None"},
{"CGContextAddCurveToPoint", (PyCFunction)CGContextRefObj_CGContextAddCurveToPoint, 1,
"(float cp1x, float cp1y, float cp2x, float cp2y, float x, float y) -> None"},
{"CGContextAddQuadCurveToPoint", (PyCFunction)CGContextRefObj_CGContextAddQuadCurveToPoint, 1,
"(float cpx, float cpy, float x, float y) -> None"},
{"CGContextClosePath", (PyCFunction)CGContextRefObj_CGContextClosePath, 1,
"() -> None"},
{"CGContextAddRect", (PyCFunction)CGContextRefObj_CGContextAddRect, 1,
"(CGRect rect) -> None"},
{"CGContextAddArc", (PyCFunction)CGContextRefObj_CGContextAddArc, 1,
"(float x, float y, float radius, float startAngle, float endAngle, int clockwise) -> None"},
{"CGContextAddArcToPoint", (PyCFunction)CGContextRefObj_CGContextAddArcToPoint, 1,
"(float x1, float y1, float x2, float y2, float radius) -> None"},
{"CGContextIsPathEmpty", (PyCFunction)CGContextRefObj_CGContextIsPathEmpty, 1,
"() -> (int _rv)"},
{"CGContextGetPathCurrentPoint", (PyCFunction)CGContextRefObj_CGContextGetPathCurrentPoint, 1,
"() -> (CGPoint _rv)"},
{"CGContextGetPathBoundingBox", (PyCFunction)CGContextRefObj_CGContextGetPathBoundingBox, 1,
"() -> (CGRect _rv)"},
{"CGContextDrawPath", (PyCFunction)CGContextRefObj_CGContextDrawPath, 1,
"(int mode) -> None"},
{"CGContextFillPath", (PyCFunction)CGContextRefObj_CGContextFillPath, 1,
"() -> None"},
{"CGContextEOFillPath", (PyCFunction)CGContextRefObj_CGContextEOFillPath, 1,
"() -> None"},
{"CGContextStrokePath", (PyCFunction)CGContextRefObj_CGContextStrokePath, 1,
"() -> None"},
{"CGContextFillRect", (PyCFunction)CGContextRefObj_CGContextFillRect, 1,
"(CGRect rect) -> None"},
{"CGContextStrokeRect", (PyCFunction)CGContextRefObj_CGContextStrokeRect, 1,
"(CGRect rect) -> None"},
{"CGContextStrokeRectWithWidth", (PyCFunction)CGContextRefObj_CGContextStrokeRectWithWidth, 1,
"(CGRect rect, float width) -> None"},
{"CGContextClearRect", (PyCFunction)CGContextRefObj_CGContextClearRect, 1,
"(CGRect rect) -> None"},
{"CGContextClip", (PyCFunction)CGContextRefObj_CGContextClip, 1,
"() -> None"},
{"CGContextEOClip", (PyCFunction)CGContextRefObj_CGContextEOClip, 1,
"() -> None"},
{"CGContextClipToRect", (PyCFunction)CGContextRefObj_CGContextClipToRect, 1,
"(CGRect rect) -> None"},
{"CGContextSetGrayFillColor", (PyCFunction)CGContextRefObj_CGContextSetGrayFillColor, 1,
"(float gray, float alpha) -> None"},
{"CGContextSetGrayStrokeColor", (PyCFunction)CGContextRefObj_CGContextSetGrayStrokeColor, 1,
"(float gray, float alpha) -> None"},
{"CGContextSetRGBFillColor", (PyCFunction)CGContextRefObj_CGContextSetRGBFillColor, 1,
"(float r, float g, float b, float alpha) -> None"},
{"CGContextSetRGBStrokeColor", (PyCFunction)CGContextRefObj_CGContextSetRGBStrokeColor, 1,
"(float r, float g, float b, float alpha) -> None"},
{"CGContextSetCMYKFillColor", (PyCFunction)CGContextRefObj_CGContextSetCMYKFillColor, 1,
"(float c, float m, float y, float k, float alpha) -> None"},
{"CGContextSetCMYKStrokeColor", (PyCFunction)CGContextRefObj_CGContextSetCMYKStrokeColor, 1,
"(float c, float m, float y, float k, float alpha) -> None"},
{"CGContextSetCharacterSpacing", (PyCFunction)CGContextRefObj_CGContextSetCharacterSpacing, 1,
"(float spacing) -> None"},
{"CGContextSetTextPosition", (PyCFunction)CGContextRefObj_CGContextSetTextPosition, 1,
"(float x, float y) -> None"},
{"CGContextGetTextPosition", (PyCFunction)CGContextRefObj_CGContextGetTextPosition, 1,
"() -> (CGPoint _rv)"},
{"CGContextSetTextMatrix", (PyCFunction)CGContextRefObj_CGContextSetTextMatrix, 1,
"(CGAffineTransform transform) -> None"},
{"CGContextGetTextMatrix", (PyCFunction)CGContextRefObj_CGContextGetTextMatrix, 1,
"() -> (CGAffineTransform _rv)"},
{"CGContextSetTextDrawingMode", (PyCFunction)CGContextRefObj_CGContextSetTextDrawingMode, 1,
"(int mode) -> None"},
{"CGContextSetFontSize", (PyCFunction)CGContextRefObj_CGContextSetFontSize, 1,
"(float size) -> None"},
{"CGContextSelectFont", (PyCFunction)CGContextRefObj_CGContextSelectFont, 1,
"(char * name, float size, int textEncoding) -> None"},
{"CGContextShowText", (PyCFunction)CGContextRefObj_CGContextShowText, 1,
"(Buffer cstring) -> None"},
{"CGContextShowTextAtPoint", (PyCFunction)CGContextRefObj_CGContextShowTextAtPoint, 1,
"(float x, float y, Buffer cstring) -> None"},
{"CGContextEndPage", (PyCFunction)CGContextRefObj_CGContextEndPage, 1,
"() -> None"},
{"CGContextFlush", (PyCFunction)CGContextRefObj_CGContextFlush, 1,
"() -> None"},
{"CGContextSynchronize", (PyCFunction)CGContextRefObj_CGContextSynchronize, 1,
"() -> None"},
{"CGContextSetShouldAntialias", (PyCFunction)CGContextRefObj_CGContextSetShouldAntialias, 1,
"(int shouldAntialias) -> None"},
{NULL, NULL, 0}
};
PyMethodChain CGContextRefObj_chain = { CGContextRefObj_methods, NULL };
static PyObject *CGContextRefObj_getattr(CGContextRefObject *self, char *name)
{
return Py_FindMethodInChain(&CGContextRefObj_chain, (PyObject *)self, name);
}
#define CGContextRefObj_setattr NULL
#define CGContextRefObj_compare NULL
#define CGContextRefObj_repr NULL
#define CGContextRefObj_hash NULL
PyTypeObject CGContextRef_Type = {
PyObject_HEAD_INIT(NULL)
0, /*ob_size*/
"_CG.CGContextRef", /*tp_name*/
sizeof(CGContextRefObject), /*tp_basicsize*/
0, /*tp_itemsize*/
/* methods */
(destructor) CGContextRefObj_dealloc, /*tp_dealloc*/
0, /*tp_print*/
(getattrfunc) CGContextRefObj_getattr, /*tp_getattr*/
(setattrfunc) CGContextRefObj_setattr, /*tp_setattr*/
(cmpfunc) CGContextRefObj_compare, /*tp_compare*/
(reprfunc) CGContextRefObj_repr, /*tp_repr*/
(PyNumberMethods *)0, /* tp_as_number */
(PySequenceMethods *)0, /* tp_as_sequence */
(PyMappingMethods *)0, /* tp_as_mapping */
(hashfunc) CGContextRefObj_hash, /*tp_hash*/
};
/* ------------------ End object type CGContextRef ------------------ */
static PyObject *CG_CreateCGContextForPort(PyObject *_self, PyObject *_args)
{
PyObject *_res = NULL;
GrafPtr port;
CGContextRef ctx;
OSStatus _err;
if (!PyArg_ParseTuple(_args, "O&", GrafObj_Convert, &port))
return NULL;
_err = CreateCGContextForPort(port, &ctx);
if (_err != noErr)
if (_err != noErr) return PyMac_Error(_err);
_res = Py_BuildValue("O&", CGContextRefObj_New, ctx);
return _res;
}
static PyMethodDef CG_methods[] = {
{"CreateCGContextForPort", (PyCFunction)CG_CreateCGContextForPort, 1,
"(CGrafPtr) -> CGContextRef"},
{NULL, NULL, 0}
};
void init_CG(void)
{
PyObject *m;
PyObject *d;
#if !TARGET_API_MAC_OSX
CFBundleRef sysBundle;
OSStatus err;
if (&LoadFrameworkBundle == NULL) {
PyErr_SetString(PyExc_ImportError, "CoreCraphics not supported");
return;
}
err = LoadFrameworkBundle(CFSTR("ApplicationServices.framework"), &sysBundle);
if (err == noErr)
err = CFMLateImportBundle(&gFragToFixLocator, gFragToFixConnID, FragmentInit, "\pCGStubLib", sysBundle);
if (err != noErr) {
PyErr_SetString(PyExc_ImportError, "CoreCraphics not supported");
return;
};
#endif /* !TARGET_API_MAC_OSX */
m = Py_InitModule("_CG", CG_methods);
d = PyModule_GetDict(m);
CG_Error = PyMac_GetOSErrException();
if (CG_Error == NULL ||
PyDict_SetItemString(d, "Error", CG_Error) != 0)
return;
CGContextRef_Type.ob_type = &PyType_Type;
Py_INCREF(&CGContextRef_Type);
if (PyDict_SetItemString(d, "CGContextRefType", (PyObject *)&CGContextRef_Type) != 0)
Py_FatalError("can't initialize CGContextRefType");
}
/* ========================= End module _CG ========================= */
Mac/Modules/cg/cgscan.py 0 → 100755
View file @ a9e17039
# Scan an Apple header file, generating a Python file of generator calls.
import sys
import os
BGENDIR=os.path.join(sys.prefix, ':Tools:bgen:bgen')
sys.path.append(BGENDIR)
from scantools import Scanner_OSX
from bgenlocations import TOOLBOXDIR
LONG = "CoreGraphics"
SHORT = "cg"
OBJECTS = ("CGContextRef",
)
# ADD object typenames here
def main():
input = [
"CGContext.h",
]
output = SHORT + "gen.py"
defsoutput = TOOLBOXDIR + LONG + ".py"
scanner = MyScanner(input, output, defsoutput)
scanner.scan()
scanner.gentypetest(SHORT+"typetest.py")
scanner.close()
print "=== Done scanning and generating, now importing the generated code... ==="
exec "import " + SHORT + "support"
print "=== Done. It's up to you to compile it now! ==="
class MyScanner(Scanner_OSX):
def destination(self, type, name, arglist):
classname = "Function"
listname = "functions"
if arglist:
t, n, m = arglist[0]
if t in OBJECTS and m == "InMode":
classname = "Method"
listname = t + "_methods"
# Special case for the silly first AllocatorRef argument
if t == 'CFAllocatorRef' and m == 'InMode' and len(arglist) > 1:
t, n, m = arglist[1]
if t in OBJECTS and m == "InMode":
classname = "MethodSkipArg1"
listname = t + "_methods"
return classname, listname
def writeinitialdefs(self):
self.defsfile.write("def FOUR_CHAR_CODE(x): return x\n")
def makeblacklistnames(self):
return [
"CGContextRetain",
"CGContextRelease",
]
def makegreylist(self):
return []
def makeblacklisttypes(self):
return [
"float_ptr",
"CGRect_ptr",
"CGPoint_ptr",
"CGColorSpaceRef",
"CGColorRenderingIntent",
"CGFontRef",
# "char_ptr",
"CGGlyph_ptr",
"CGImageRef",
"CGPDFDocumentRef",
]
def makerepairinstructions(self):
return [
([("char_ptr", "cstring", "InMode"), ("size_t", "length", "InMode")],
[("InBuffer", "*", "*")]),
# ([("char_ptr", "name", "InMode"),],
# [("CCCCC", "*", "*")]),
]
if __name__ == "__main__":
main()
Mac/Modules/cg/cgsupport.py 0 → 100755
View file @ a9e17039
# This script generates a Python interface for an Apple Macintosh Manager.
# It uses the "bgen" package to generate C code.
# The function specifications are generated by scanning the mamager's header file,
# using the "scantools" package (customized for this particular manager).
#error missing SetActionFilter
import string
# Declarations that change for each manager
MODNAME = '_CG' # The name of the module
# The following is *usually* unchanged but may still require tuning
MODPREFIX = 'CG' # The prefix for module-wide routines
INPUTFILE = string.lower(MODPREFIX) + 'gen.py' # The file generated by the scanner
OUTPUTFILE = MODNAME + "module.c" # The file generated by this program
from macsupport import *
# Create the type objects
includestuff = includestuff + """
#ifdef WITHOUT_FRAMEWORKS
#include <Quickdraw.h>
#include <CGContext.h>
#else
#include <CoreGraphics/CoreGraphics.h>
#endif
#if !TARGET_API_MAC_OSX
/* This code is adapted from the CallMachOFramework demo at:
http://developer.apple.com/samplecode/Sample_Code/Runtime_Architecture/CallMachOFramework.htm
It allows us to call Mach-O functions from CFM apps. */
#include <Folders.h>
#include "CFMLateImport.h"
static OSStatus LoadFrameworkBundle(CFStringRef framework, CFBundleRef *bundlePtr)
// This routine finds a the named framework and creates a CFBundle
// object for it. It looks for the framework in the frameworks folder,
// as defined by the Folder Manager. Currently this is
// "/System/Library/Frameworks", but we recommend that you avoid hard coded
// paths to ensure future compatibility.
//
// You might think that you could use CFBundleGetBundleWithIdentifier but
// that only finds bundles that are already loaded into your context.
// That would work in the case of the System framework but it wouldn't
// work if you're using some other, less-obvious, framework.
{
OSStatus err;
FSRef frameworksFolderRef;
CFURLRef baseURL;
CFURLRef bundleURL;
*bundlePtr = nil;
baseURL = nil;
bundleURL = nil;
// Find the frameworks folder and create a URL for it.
err = FSFindFolder(kOnAppropriateDisk, kFrameworksFolderType, true, &frameworksFolderRef);
if (err == noErr) {
baseURL = CFURLCreateFromFSRef(kCFAllocatorSystemDefault, &frameworksFolderRef);
if (baseURL == nil) {
err = coreFoundationUnknownErr;
}
}
// Append the name of the framework to the URL.
if (err == noErr) {
bundleURL = CFURLCreateCopyAppendingPathComponent(kCFAllocatorSystemDefault, baseURL, framework, false);
if (bundleURL == nil) {
err = coreFoundationUnknownErr;
}
}
// Create a bundle based on that URL and load the bundle into memory.
// We never unload the bundle, which is reasonable in this case because
// the sample assumes that you'll be calling functions from this
// framework throughout the life of your application.
if (err == noErr) {
*bundlePtr = CFBundleCreate(kCFAllocatorSystemDefault, bundleURL);
if (*bundlePtr == nil) {
err = coreFoundationUnknownErr;
}
}
if (err == noErr) {
if ( ! CFBundleLoadExecutable( *bundlePtr ) ) {
err = coreFoundationUnknownErr;
}
}
// Clean up.
if (err != noErr && *bundlePtr != nil) {
CFRelease(*bundlePtr);
*bundlePtr = nil;
}
if (bundleURL != nil) {
CFRelease(bundleURL);
}
if (baseURL != nil) {
CFRelease(baseURL);
}
return err;
}
// The CFMLateImport approach requires that you define a fragment
// initialisation routine that latches the fragment's connection
// ID and locator. If your code already has a fragment initialiser
// you will have to integrate the following into it.
static CFragConnectionID gFragToFixConnID;
static FSSpec gFragToFixFile;
static CFragSystem7DiskFlatLocator gFragToFixLocator;
extern OSErr FragmentInit(const CFragInitBlock *initBlock);
extern OSErr FragmentInit(const CFragInitBlock *initBlock)
{
__initialize(initBlock); /* call the "original" initializer */
gFragToFixConnID = (CFragConnectionID) initBlock->closureID;
gFragToFixFile = *(initBlock->fragLocator.u.onDisk.fileSpec);
gFragToFixLocator = initBlock->fragLocator.u.onDisk;
gFragToFixLocator.fileSpec = &gFragToFixFile;
return noErr;
}
#endif
extern int GrafObj_Convert(PyObject *, GrafPtr *);
/*
** Manual converters
*/
PyObject *CGPoint_New(CGPoint *itself)
{
return Py_BuildValue("(ff)",
itself->x,
itself->y);
}
int
CGPoint_Convert(PyObject *v, CGPoint *p_itself)
{
if( !PyArg_Parse(v, "(ff)",
&p_itself->x,
&p_itself->y) )
return 0;
return 1;
}
PyObject *CGRect_New(CGRect *itself)
{
return Py_BuildValue("(ffff)",
itself->origin.x,
itself->origin.y,
itself->size.width,
itself->size.height);
}
int
CGRect_Convert(PyObject *v, CGRect *p_itself)
{
if( !PyArg_Parse(v, "(ffff)",
&p_itself->origin.x,
&p_itself->origin.y,
&p_itself->size.width,
&p_itself->size.height) )
return 0;
return 1;
}
PyObject *CGAffineTransform_New(CGAffineTransform *itself)
{
return Py_BuildValue("(ffffff)",
itself->a,
itself->b,
itself->c,
itself->d,
itself->tx,
itself->ty);
}
int
CGAffineTransform_Convert(PyObject *v, CGAffineTransform *p_itself)
{
if( !PyArg_Parse(v, "(ffffff)",
&p_itself->a,
&p_itself->b,
&p_itself->c,
&p_itself->d,
&p_itself->tx,
&p_itself->ty) )
return 0;
return 1;
}
"""
initstuff = initstuff + """
#if !TARGET_API_MAC_OSX
CFBundleRef sysBundle;
OSStatus err;
if (&LoadFrameworkBundle == NULL) {
PyErr_SetString(PyExc_ImportError, "CoreCraphics not supported");
return;
}
err = LoadFrameworkBundle(CFSTR("ApplicationServices.framework"), &sysBundle);
if (err == noErr)
err = CFMLateImportBundle(&gFragToFixLocator, gFragToFixConnID, FragmentInit, "\pCGStubLib", sysBundle);
if (err != noErr) {
PyErr_SetString(PyExc_ImportError, "CoreCraphics not supported");
return;
};
#endif /* !TARGET_API_MAC_OSX */
"""
class MyOpaqueByValueType(OpaqueByValueType):
"""Sort of a mix between OpaqueByValueType and OpaqueType."""
def mkvalueArgs(self, name):
return "%s, &%s" % (self.new, name)
CGPoint = MyOpaqueByValueType('CGPoint', 'CGPoint')
CGRect = MyOpaqueByValueType('CGRect', 'CGRect')
CGAffineTransform = MyOpaqueByValueType('CGAffineTransform', 'CGAffineTransform')
char_ptr = Type("char *", "s")
CGTextEncoding = int
CGLineCap = int
CGLineJoin = int
CGTextDrawingMode = int
CGPathDrawingMode = int
# The real objects
CGContextRef = OpaqueByValueType("CGContextRef", "CGContextRefObj")
class MyObjectDefinition(GlobalObjectDefinition):
def outputStructMembers(self):
ObjectDefinition.outputStructMembers(self)
def outputCleanupStructMembers(self):
Output("CGContextRelease(self->ob_itself);")
# Create the generator groups and link them
module = MacModule(MODNAME, MODPREFIX, includestuff, finalstuff, initstuff)
CGContextRef_object = MyObjectDefinition('CGContextRef', 'CGContextRefObj', 'CGContextRef')
# ADD object here
module.addobject(CGContextRef_object)
Function = FunctionGenerator
Method = MethodGenerator
CGContextRef_methods = []
# ADD _methods initializer here
execfile(INPUTFILE)
CreateCGContextForPort_body = """\
GrafPtr port;
CGContextRef ctx;
OSStatus _err;
if (!PyArg_ParseTuple(_args, "O&", GrafObj_Convert, &port))
return NULL;
_err = CreateCGContextForPort(port, &ctx);
if (_err != noErr)
if (_err != noErr) return PyMac_Error(_err);
_res = Py_BuildValue("O&", CGContextRefObj_New, ctx);
return _res;
"""
f = ManualGenerator("CreateCGContextForPort", CreateCGContextForPort_body);
f.docstring = lambda: "(CGrafPtr) -> CGContextRef"
module.add(f)
# ADD add forloop here
for f in CGContextRef_methods:
CGContextRef_object.add(f)
# generate output (open the output file as late as possible)
SetOutputFileName(OUTPUTFILE)
module.generate()
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