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RF: run-time loading of Tcl / Tk functions

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Discover Tcl / Tk functions at run-time by looking in libs loaded by
Tkinter Python module.

Use header excerpts from Tcl / Tk so we don't need an installed Tcl / Tk
to build.
This commit is contained in:
Matthew Brett 2016-05-26 18:05:53 -04:00
parent 2af16a7b58
commit 659e294676
4 changed files with 443 additions and 140 deletions
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146
Tk/_tkmini.h Normal file
View File

@ -0,0 +1,146 @@
/* Small excerpts from the Tcl / Tk 8.6 headers
*
* License terms copied from:
* http://www.tcl.tk/software/tcltk/license.html
* as of 20 May 2016.
*
* Copyright (c) 1987-1994 The Regents of the University of California.
* Copyright (c) 1993-1996 Lucent Technologies.
* Copyright (c) 1994-1998 Sun Microsystems, Inc.
* Copyright (c) 1998-2000 by Scriptics Corporation.
* Copyright (c) 2002 by Kevin B. Kenny. All rights reserved.
*
* This software is copyrighted by the Regents of the University
* of California, Sun Microsystems, Inc., Scriptics Corporation,
* and other parties. The following terms apply to all files
* associated with the software unless explicitly disclaimed in
* individual files.
*
* The authors hereby grant permission to use, copy, modify,
* distribute, and license this software and its documentation
* for any purpose, provided that existing copyright notices are
* retained in all copies and that this notice is included
* verbatim in any distributions. No written agreement, license,
* or royalty fee is required for any of the authorized uses.
* Modifications to this software may be copyrighted by their
* authors and need not follow the licensing terms described
* here, provided that the new terms are clearly indicated on
* the first page of each file where they apply.
*
* IN NO EVENT SHALL THE AUTHORS OR DISTRIBUTORS BE LIABLE TO
* ANY PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR
* CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OF THIS
* SOFTWARE, ITS DOCUMENTATION, OR ANY DERIVATIVES THEREOF, EVEN
* IF THE AUTHORS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*
* THE AUTHORS AND DISTRIBUTORS SPECIFICALLY DISCLAIM ANY
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
* PURPOSE, AND NON-INFRINGEMENT. THIS SOFTWARE IS PROVIDED ON
* AN "AS IS" BASIS, AND THE AUTHORS AND DISTRIBUTORS HAVE NO
* OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
* ENHANCEMENTS, OR MODIFICATIONS.
*
* GOVERNMENT USE: If you are acquiring this software on behalf
* of the U.S. government, the Government shall have only
* "Restricted Rights" in the software and related documentation
* as defined in the Federal Acquisition Regulations (FARs) in
* Clause 52.227.19 (c) (2). If you are acquiring the software
* on behalf of the Department of Defense, the software shall be
* classified as "Commercial Computer Software" and the
* Government shall have only "Restricted Rights" as defined in
* Clause 252.227-7013 (c) (1) of DFARs. Notwithstanding the
* foregoing, the authors grant the U.S. Government and others
* acting in its behalf permission to use and distribute the
* software in accordance with the terms specified in this
* license
*/
/*
* Unless otherwise noted, these definitions are stable from Tcl / Tk 8.4
* through Tck / Tk master as of 21 May 2016
*/
#ifdef __cplusplus
extern "C" {
#endif
/* Tcl header excerpts */
#define TCL_OK 0
#define TCL_ERROR 1
/*
* Users of versions of Tcl >= 8.6 encouraged to treat Tcl_Interp as an opaque
* pointer. The following definition results when TCL_NO_DEPRECATED defined.
*/
typedef struct Tcl_Interp Tcl_Interp;
typedef struct Tcl_Command_ *Tcl_Command;
typedef void *ClientData;
typedef int (Tcl_CmdProc) (ClientData clientData, Tcl_Interp
*interp, int argc, const char *argv[]);
typedef void (Tcl_CmdDeleteProc) (ClientData clientData);
/* Typedefs derived from function signatures in Tcl header */
/* Tcl_CreateCommand */
typedef Tcl_Command (*Tcl_CreateCommand_t)(Tcl_Interp *interp,
const char *cmdName, Tcl_CmdProc *proc,
ClientData clientData,
Tcl_CmdDeleteProc *deleteProc);
/* Tcl_AppendResult */
typedef void (*Tcl_AppendResult_t) (Tcl_Interp *interp, ...);
/* Tk header excerpts */
/*
* The following values control how blocks are combined into photo
* images when the alpha component of a pixel is not 255, a.k.a. the
* compositing rule.
*/
#define TK_PHOTO_COMPOSITE_OVERLAY 0
#define TK_PHOTO_COMPOSITE_SET 1
typedef struct Tk_Window_ *Tk_Window;
typedef void *Tk_PhotoHandle;
typedef struct Tk_PhotoImageBlock
{
unsigned char *pixelPtr;
int width;
int height;
int pitch;
int pixelSize;
int offset[4];
} Tk_PhotoImageBlock;
/* Typedefs derived from function signatures in Tk header */
/* Tk_PhotoPutBlock for Tk <= 8.4 */
typedef void (*Tk_PhotoPutBlock_84_t) (Tk_PhotoHandle handle,
Tk_PhotoImageBlock *blockPtr, int x, int y,
int width, int height, int compRule);
/* Tk_PhotoPutBlock for Tk >= 8.5 */
typedef int (*Tk_PhotoPutBlock_85_t) (Tcl_Interp * interp,
Tk_PhotoHandle handle,
Tk_PhotoImageBlock * blockPtr, int x, int y,
int width, int height, int compRule);
/* Tk_PhotoSetSize for Tk <= 8.4 */
typedef void (*Tk_PhotoSetSize_84_t) (Tk_PhotoHandle handle,
int width, int height);
/* Tk_FindPhoto */
typedef Tk_PhotoHandle (*Tk_FindPhoto_t) (Tcl_Interp *interp,
const char *imageName);
/* Tk_PhotoGetImage */
typedef int (*Tk_PhotoGetImage_t) (Tk_PhotoHandle handle,
Tk_PhotoImageBlock * blockPtr);
/*
* end block for C++
*/
#ifdef __cplusplus
}
#endif

316
Tk/tkImaging.c
View File

@ -42,17 +42,23 @@
* See the README file for information on usage and redistribution.
*/
#define TK (TK_MAJOR_VERSION*10 + TK_MINOR_VERSION)
/* This is needed for (at least) Tk 8.4.6 and later, to avoid warnings
for the Tcl_CreateCommand command. */
#define USE_COMPAT_CONST
#include "Imaging.h"
#include "tk.h"
#include "_tkmini.h"
#include <stdlib.h>
/*
* Global vars for Tcl / Tk functions. We load these symbols from the tkinter
* extension module or loaded Tcl / Tk libraries at run-time.
*/
static int TK_LT_85 = 0;
static Tcl_CreateCommand_t TCL_CREATE_COMMAND;
static Tcl_AppendResult_t TCL_APPEND_RESULT;
static Tk_FindPhoto_t TK_FIND_PHOTO;
static Tk_PhotoGetImage_t TK_PHOTO_GET_IMAGE;
static Tk_PhotoPutBlock_84_t TK_PHOTO_PUT_BLOCK_84;
static Tk_PhotoSetSize_84_t TK_PHOTO_SET_SIZE_84;
static Tk_PhotoPutBlock_85_t TK_PHOTO_PUT_BLOCK_85;
static Imaging
ImagingFind(const char* name)
@ -81,15 +87,15 @@ PyImagingPhotoPut(ClientData clientdata, Tcl_Interp* interp,
Tk_PhotoImageBlock block;
if (argc != 3) {
Tcl_AppendResult(interp, "usage: ", argv[0],
TCL_APPEND_RESULT(interp, "usage: ", argv[0],
" destPhoto srcImage", (char *) NULL);
return TCL_ERROR;
}
/* get Tcl PhotoImage handle */
photo = Tk_FindPhoto(interp, argv[1]);
photo = TK_FIND_PHOTO(interp, argv[1]);
if (photo == NULL) {
Tcl_AppendResult(
TCL_APPEND_RESULT(
interp, "destination photo must exist", (char *) NULL
);
return TCL_ERROR;
@ -98,12 +104,12 @@ PyImagingPhotoPut(ClientData clientdata, Tcl_Interp* interp,
/* get PIL Image handle */
im = ImagingFind(argv[2]);
if (!im) {
Tcl_AppendResult(interp, "bad name", (char*) NULL);
return TCL_ERROR;
TCL_APPEND_RESULT(interp, "bad name", (char*) NULL);
return TCL_ERROR;
}
if (!im->block) {
Tcl_AppendResult(interp, "bad display memory", (char*) NULL);
return TCL_ERROR;
TCL_APPEND_RESULT(interp, "bad display memory", (char*) NULL);
return TCL_ERROR;
}
/* Active region */
@ -133,7 +139,7 @@ PyImagingPhotoPut(ClientData clientdata, Tcl_Interp* interp,
else
block.offset[3] = 0; /* no alpha */
} else {
Tcl_AppendResult(interp, "Bad mode", (char*) NULL);
TCL_APPEND_RESULT(interp, "Bad mode", (char*) NULL);
return TCL_ERROR;
}
@ -147,17 +153,18 @@ PyImagingPhotoPut(ClientData clientdata, Tcl_Interp* interp,
src_xoffset * im->pixelsize;
#endif
#if TK < 85 /* Tk 8.4 */
Tk_PhotoPutBlock(photo, &block, 0, 0, block.width, block.height,
TK_PHOTO_COMPOSITE_SET);
if (strcmp(im->mode, "RGBA") == 0)
/* Tk workaround: we need apply ToggleComplexAlphaIfNeeded */
/* (fixed in Tk 8.5a3) */
Tk_PhotoSetSize(photo, block.width, block.height);
#else /* Tk 8.5 */
Tk_PhotoPutBlock(interp, photo, &block, 0, 0, block.width, block.height,
TK_PHOTO_COMPOSITE_SET);
#endif
if (TK_LT_85) { /* Tk 8.4 */
TK_PHOTO_PUT_BLOCK_84(photo, &block, 0, 0, block.width, block.height,
TK_PHOTO_COMPOSITE_SET);
if (strcmp(im->mode, "RGBA") == 0)
/* Tk workaround: we need apply ToggleComplexAlphaIfNeeded */
/* (fixed in Tk 8.5a3) */
TK_PHOTO_SET_SIZE_84(photo, block.width, block.height);
} else {
/* Tk >=8.5 */
TK_PHOTO_PUT_BLOCK_85(interp, photo, &block, 0, 0, block.width,
block.height, TK_PHOTO_COMPOSITE_SET);
}
return TCL_OK;
}
@ -171,21 +178,21 @@ PyImagingPhotoGet(ClientData clientdata, Tcl_Interp* interp,
Tk_PhotoImageBlock block;
if (argc != 2) {
Tcl_AppendResult(interp, "usage: ", argv[0],
TCL_APPEND_RESULT(interp, "usage: ", argv[0],
" srcPhoto", (char *) NULL);
return TCL_ERROR;
}
/* get Tcl PhotoImage handle */
photo = Tk_FindPhoto(interp, argv[1]);
photo = TK_FIND_PHOTO(interp, argv[1]);
if (photo == NULL) {
Tcl_AppendResult(
TCL_APPEND_RESULT(
interp, "source photo must exist", (char *) NULL
);
return TCL_ERROR;
}
Tk_PhotoGetImage(photo, &block);
TK_PHOTO_GET_IMAGE(photo, &block);
printf("pixelPtr = %p\n", block.pixelPtr);
printf("width = %d\n", block.width);
@ -195,7 +202,7 @@ PyImagingPhotoGet(ClientData clientdata, Tcl_Interp* interp,
printf("offset = %d %d %d %d\n", block.offset[0], block.offset[1],
block.offset[2], block.offset[3]);
Tcl_AppendResult(
TCL_APPEND_RESULT(
interp, "this function is not yet supported", (char *) NULL
);
@ -206,8 +213,251 @@ PyImagingPhotoGet(ClientData clientdata, Tcl_Interp* interp,
void
TkImaging_Init(Tcl_Interp* interp)
{
Tcl_CreateCommand(interp, "PyImagingPhoto", PyImagingPhotoPut,
TCL_CREATE_COMMAND(interp, "PyImagingPhoto", PyImagingPhotoPut,
(ClientData) 0, (Tcl_CmdDeleteProc*) NULL);
Tcl_CreateCommand(interp, "PyImagingPhotoGet", PyImagingPhotoGet,
TCL_CREATE_COMMAND(interp, "PyImagingPhotoGet", PyImagingPhotoGet,
(ClientData) 0, (Tcl_CmdDeleteProc*) NULL);
}
/*
* Functions to fill global Tcl / Tk function pointers by dynamic loading
*/
#if defined(_WIN32) || defined(__WIN32__) || defined(WIN32)
/*
* On Windows, we can't load the tkinter module to get the Tcl or Tk symbols,
* because Windows does not load symbols into the library name-space of
* importing modules. So, knowing that tkinter has already been imported by
* Python, we scan all modules in the running process for the Tcl and Tk
* function names.
*/
#include <windows.h>
#define PSAPI_VERSION 1
#include <psapi.h>
/* Must be linked with 'psapi' library */
FARPROC _dfunc(HMODULE lib_handle, const char *func_name)
{
/*
* Load function `func_name` from `lib_handle`.
* Set Python exception if we can't find `func_name` in `lib_handle`.
* Returns function pointer or NULL if not present.
*/
char message[100];
FARPROC func = GetProcAddress(lib_handle, func_name);
if (func == NULL) {
sprintf(message, "Cannot load function %s", func_name);
PyErr_SetString(PyExc_RuntimeError, message);
}
return func;
}
int get_tcl(HMODULE hMod)
{
/*
* Try to fill Tcl global vars with function pointers. Return 0 for no
* functions found, 1 for all functions found, -1 for some but not all
* functions found.
*/
if ((TCL_CREATE_COMMAND = (Tcl_CreateCommand_t)
GetProcAddress(hMod, "Tcl_CreateCommand")) == NULL) {
return 0; /* Maybe not Tcl module */
}
return ((TCL_APPEND_RESULT = (Tcl_AppendResult_t) _dfunc(hMod,
"Tcl_AppendResult")) == NULL) ? -1 : 1;
}
int get_tk(HMODULE hMod)
{
/*
* Try to fill Tk global vars with function pointers. Return 0 for no
* functions found, 1 for all functions found, -1 for some but not all
* functions found.
*/
FARPROC func = GetProcAddress(hMod, "Tk_PhotoPutBlock");
if (func == NULL) { /* Maybe not Tk module */
return 0;
}
if ((TK_PHOTO_GET_IMAGE = (Tk_PhotoGetImage_t)
_dfunc(hMod, "Tk_PhotoGetImage")) == NULL) { return -1; };
if ((TK_FIND_PHOTO = (Tk_FindPhoto_t)
_dfunc(hMod, "Tk_FindPhoto")) == NULL) { return -1; };
TK_LT_85 = GetProcAddress(hMod, "Tk_PhotoPutBlock_Panic") == NULL;
/* Tk_PhotoPutBlock_Panic defined as of 8.5.0 */
if (TK_LT_85) {
TK_PHOTO_PUT_BLOCK_84 = (Tk_PhotoPutBlock_84_t) func;
return ((TK_PHOTO_SET_SIZE_84 = (Tk_PhotoSetSize_84_t)
_dfunc(hMod, "Tk_PhotoSetSize")) == NULL) ? -1 : 1;
}
TK_PHOTO_PUT_BLOCK_85 = (Tk_PhotoPutBlock_85_t) func;
return 1;
}
int load_tkinter_funcs(void)
{
/*
* Load Tcl and Tk functions by searching all modules in current process.
* Return 0 for success, non-zero for failure.
*/
HMODULE hMods[1024];
HANDLE hProcess;
DWORD cbNeeded;
unsigned int i;
int found_tcl = 0;
int found_tk = 0;
/* Returns pseudo-handle that does not need to be closed */
hProcess = GetCurrentProcess();
/* Iterate through modules in this process looking for Tcl / Tk names */
if (EnumProcessModules(hProcess, hMods, sizeof(hMods), &cbNeeded)) {
for (i = 0; i < (cbNeeded / sizeof(HMODULE)); i++) {
if (!found_tcl) {
found_tcl = get_tcl(hMods[i]);
if (found_tcl == -1) {
return 1;
}
}
if (!found_tk) {
found_tk = get_tk(hMods[i]);
if (found_tk == -1) {
return 1;
}
}
if (found_tcl && found_tk) {
return 0;
}
}
}
if (found_tcl == 0) {
PyErr_SetString(PyExc_RuntimeError, "Could not find Tcl routines");
} else {
PyErr_SetString(PyExc_RuntimeError, "Could not find Tk routines");
}
return 1;
}
#else /* not Windows */
/*
* On Unix, we can get the Tcl and Tk synbols from the tkinter module, because
* tkinter uses these symbols, and the symbols are therefore visible in the
* tkinter dynamic library (module).
*/
#if PY_VERSION_HEX >= 0x03000000
#define TKINTER_PKG "tkinter"
#define TKINTER_MOD "_tkinter"
/* From module __file__ attribute to char *string for dlopen. */
char *fname2char(PyObject *fname)
{
PyObject *bytes = PyUnicode_EncodeFSDefault(fname);
if (bytes == NULL) {
return NULL;
}
return PyBytes_AsString(bytes);
}
#else
#define TKINTER_PKG "Tkinter"
#define TKINTER_MOD "tkinter"
/* From module __file__ attribute to char *string for dlopen */
#define fname2char(s) (PyString_AsString(s))
#endif
#include <dlfcn.h>
void *_dfunc(void *lib_handle, const char *func_name)
{
/*
* Load function `func_name` from `lib_handle`.
* Set Python exception if we can't find `func_name` in `lib_handle`.
* Returns function pointer or NULL if not present.
*/
/* Reset errors. */
dlerror();
void *func = dlsym(lib_handle, func_name);
if (func == NULL) {
const char *error = dlerror();
PyErr_SetString(PyExc_RuntimeError, error);
}
return func;
}
int _func_loader(void *lib)
{
/*
* Fill global function pointers from dynamic lib.
* Return 1 if any pointer is NULL, 0 otherwise.
*/
if ((TCL_CREATE_COMMAND = (Tcl_CreateCommand_t)
_dfunc(lib, "Tcl_CreateCommand")) == NULL) { return 1; }
if ((TCL_APPEND_RESULT = (Tcl_AppendResult_t) _dfunc(lib,
"Tcl_AppendResult")) == NULL) { return 1; }
if ((TK_PHOTO_GET_IMAGE = (Tk_PhotoGetImage_t)
_dfunc(lib, "Tk_PhotoGetImage")) == NULL) { return 1; }
if ((TK_FIND_PHOTO = (Tk_FindPhoto_t)
_dfunc(lib, "Tk_FindPhoto")) == NULL) { return 1; }
/* Tk_PhotoPutBlock_Panic defined as of 8.5.0 */
TK_LT_85 = (dlsym(lib, "Tk_PhotoPutBlock_Panic") == NULL);
if (TK_LT_85) {
return (((TK_PHOTO_PUT_BLOCK_84 = (Tk_PhotoPutBlock_84_t)
_dfunc(lib, "Tk_PhotoPutBlock")) == NULL) ||
((TK_PHOTO_SET_SIZE_84 = (Tk_PhotoSetSize_84_t)
_dfunc(lib, "Tk_PhotoSetSize")) == NULL));
}
return ((TK_PHOTO_PUT_BLOCK_85 = (Tk_PhotoPutBlock_85_t)
_dfunc(lib, "Tk_PhotoPutBlock")) == NULL);
}
int load_tkinter_funcs(void)
{
/*
* Load tkinter global funcs from tkinter compiled module.
* Return 0 for success, non-zero for failure.
*/
int ret = -1;
void *tkinter_lib;
char *tkinter_libname;
PyObject *pModule = NULL, *pSubmodule = NULL, *pString = NULL;
pModule = PyImport_ImportModule(TKINTER_PKG);
if (pModule == NULL) {
goto exit;
}
pSubmodule = PyObject_GetAttrString(pModule, TKINTER_MOD);
if (pSubmodule == NULL) {
goto exit;
}
pString = PyObject_GetAttrString(pSubmodule, "__file__");
if (pString == NULL) {
goto exit;
}
tkinter_libname = fname2char(pString);
if (tkinter_libname == NULL) {
goto exit;
}
tkinter_lib = dlopen(tkinter_libname, RTLD_LAZY);
if (tkinter_lib == NULL) {
PyErr_SetString(PyExc_RuntimeError,
"Cannot dlopen tkinter module file");
goto exit;
}
ret = _func_loader(tkinter_lib);
/* dlclose probably safe because tkinter has been imported. */
dlclose(tkinter_lib);
exit:
Py_XDECREF(pModule);
Py_XDECREF(pSubmodule);
Py_XDECREF(pString);
return ret;
}
#endif /* end not Windows */

9
_imagingtk.c
View File

@ -16,10 +16,11 @@
#include "Python.h"
#include "Imaging.h"
#include "tk.h"
#include "_tkmini.h"
/* must link with Tk/tkImaging.c */
extern void TkImaging_Init(Tcl_Interp* interp);
extern int load_tkinter_funcs(void);
/* copied from _tkinter.c (this isn't as bad as it may seem: for new
versions, we use _tkinter's interpaddr hook instead, and all older
@ -73,14 +74,16 @@ PyInit__imagingtk(void) {
-1, /* m_size */
functions, /* m_methods */
};
return PyModule_Create(&module_def);
PyObject *m;
m = PyModule_Create(&module_def);
return (load_tkinter_funcs() == 0) ? m : NULL;
}
#else
PyMODINIT_FUNC
init_imagingtk(void)
{
Py_InitModule("_imagingtk", functions);
load_tkinter_funcs();
}
#endif

112
setup.py
View File

@ -111,7 +111,6 @@ except (ImportError, OSError):
NAME = 'Pillow'
PILLOW_VERSION = '3.3.0.dev0'
TCL_ROOT = None
JPEG_ROOT = None
JPEG2K_ROOT = None
ZLIB_ROOT = None
@ -123,8 +122,8 @@ LCMS_ROOT = None
class pil_build_ext(build_ext):
class feature:
features = ['zlib', 'jpeg', 'tiff', 'freetype', 'tcl', 'tk', 'lcms',
'webp', 'webpmux', 'jpeg2000', 'imagequant']
features = ['zlib', 'jpeg', 'tiff', 'freetype', 'lcms', 'webp',
'webpmux', 'jpeg2000', 'imagequant']
required = set(['jpeg', 'zlib'])
@ -150,14 +149,11 @@ class pil_build_ext(build_ext):
('enable-%s' % x, None, 'Enable support for %s' % x) for x in feature
] + [
('disable-platform-guessing', None, 'Disable platform guessing on Linux'),
('disable-osx-tcltk-framework', None,
'Disable linking against system tcl/tk frameworks on OSX'),
('debug', None, 'Debug logging')
]
def initialize_options(self):
self.disable_platform_guessing = None
self.disable_osx_tcltk_framework = None
build_ext.initialize_options(self)
for x in self.feature:
setattr(self, 'disable_%s' % x, None)
@ -183,8 +179,6 @@ class pil_build_ext(build_ext):
def build_extensions(self):
global TCL_ROOT
library_dirs = []
include_dirs = []
@ -193,7 +187,7 @@ class pil_build_ext(build_ext):
#
# add configured kits
for root in (TCL_ROOT, JPEG_ROOT, JPEG2K_ROOT, TIFF_ROOT, ZLIB_ROOT,
for root in (JPEG_ROOT, JPEG2K_ROOT, TIFF_ROOT, ZLIB_ROOT,
FREETYPE_ROOT, LCMS_ROOT, IMAGEQUANT_ROOT):
if isinstance(root, type(())):
lib_root, include_root = root
@ -351,53 +345,6 @@ class pil_build_ext(build_ext):
# FIXME: check /opt/stuff directories here?
# locate tkinter libraries
if _tkinter:
TCL_VERSION = _tkinter.TCL_VERSION[:3]
_dbg('Tkinter found, will check for Tcl/Tk')
else:
_dbg('Tkinter not found')
if _tkinter and not TCL_ROOT:
# we have Tkinter but the TCL_ROOT variable was not set;
# try to locate appropriate Tcl/Tk libraries
PYVERSION = sys.version[0] + sys.version[2]
TCLVERSION = TCL_VERSION[0] + TCL_VERSION[2]
roots = [
# common installation directories, mostly for Windows
# (for Unix-style platforms, we'll check in well-known
# locations later)
os.path.join("/py" + PYVERSION, "Tcl"),
os.path.join("/python" + PYVERSION, "Tcl"),
"/Tcl",
"/Tcl" + TCLVERSION,
"/Tcl" + TCL_VERSION,
os.path.join(
os.environ.get("ProgramFiles", ""), "Tcl"),
]
for TCL_ROOT in roots:
TCL_ROOT = os.path.abspath(TCL_ROOT)
_dbg('Checking %s for tk.h', TCL_ROOT)
if os.path.isfile(os.path.join(TCL_ROOT, "include", "tk.h")):
# FIXME: use distutils logging (?)
print("--- using Tcl/Tk libraries at", TCL_ROOT)
print("--- using Tcl/Tk version", TCL_VERSION)
TCL_ROOT = _lib_include(TCL_ROOT)
break
else:
TCL_ROOT = None
_dbg('Tcl/tk not found')
# add standard directories
# look for tcl specific subdirectory (e.g debian)
if _tkinter:
if not self.disable_platform_guessing:
tcl_dir = "/usr/include/tcl" + TCL_VERSION
if os.path.isfile(os.path.join(tcl_dir, "tk.h")):
_add_directory(include_dirs, tcl_dir)
# standard locations
if not self.disable_platform_guessing:
_add_directory(library_dirs, "/usr/local/lib")
@ -543,22 +490,6 @@ class pil_build_ext(build_ext):
# alternate Windows name.
feature.lcms = "lcms2_static"
if _tkinter and _find_include_file(self, "tk.h"):
# the library names may vary somewhat (e.g. tcl85 or tcl8.5)
version = TCL_VERSION[0] + TCL_VERSION[2]
if feature.want('tcl'):
_dbg('Looking for TCL')
if _find_library_file(self, "tcl" + version):
feature.tcl = "tcl" + version
elif _find_library_file(self, "tcl" + TCL_VERSION):
feature.tcl = "tcl" + TCL_VERSION
if feature.want('tk'):
_dbg('Looking for TK')
if _find_library_file(self, "tk" + version):
feature.tk = "tk" + version
elif _find_library_file(self, "tk" + TCL_VERSION):
feature.tk = "tk" + TCL_VERSION
if feature.want('webp'):
_dbg('Looking for webp')
if (_find_include_file(self, "webp/encode.h") and
@ -658,34 +589,11 @@ class pil_build_ext(build_ext):
libraries=libs,
define_macros=defs))
if feature.tcl and feature.tk:
if sys.platform == "darwin" and not self.disable_osx_tcltk_framework:
# locate Tcl/Tk frameworks
frameworks = []
framework_roots = [
"/Library/Frameworks", "/System/Library/Frameworks"
]
_dbg('Looking for TclTk Framework Build')
for root in framework_roots:
root_tcl = os.path.join(root, "Tcl.framework")
root_tk = os.path.join(root, "Tk.framework")
if (os.path.exists(root_tcl) and os.path.exists(root_tk)):
print("--- using frameworks at %s" % root)
frameworks = ["-framework", "Tcl", "-framework", "Tk"]
subdir = os.path.join(root_tcl, "Headers")
_add_directory(self.compiler.include_dirs, subdir, 0)
subdir = os.path.join(root_tk, "Headers")
_add_directory(self.compiler.include_dirs, subdir, 1)
break
if frameworks:
exts.append(Extension("PIL._imagingtk",
["_imagingtk.c", "Tk/tkImaging.c"],
extra_compile_args=frameworks,
extra_link_args=frameworks))
else:
exts.append(Extension("PIL._imagingtk",
["_imagingtk.c", "Tk/tkImaging.c"],
libraries=[feature.tcl, feature.tk]))
tk_libs = ['psapi'] if sys.platform == 'win32' else []
exts.append(Extension("PIL._imagingtk",
["_imagingtk.c", "Tk/tkImaging.c"],
include_dirs=['Tk'],
libraries=tk_libs))
exts.append(Extension("PIL._imagingmath", ["_imagingmath.c"]))
exts.append(Extension("PIL._imagingmorph", ["_imagingmorph.c"]))
@ -717,7 +625,6 @@ class pil_build_ext(build_ext):
print("-" * 68)
options = [
(feature.tcl and feature.tk, "TKINTER"),
(feature.jpeg, "JPEG"),
(feature.jpeg2000, "OPENJPEG (JPEG2000)",
feature.openjpeg_version),
@ -739,9 +646,6 @@ class pil_build_ext(build_ext):
print("--- %s support available%s" % (option[1], version))
else:
print("*** %s support not available" % option[1])
if option[1] == "TKINTER" and _tkinter:
version = _tkinter.TCL_VERSION
print("(Tcl/Tk %s libraries needed)" % version)
all = 0
if feature.zlib and unsafe_zlib: