Start wrapping espeak

.github/workflows/ci.yml

@@ -45,7 +45,7 @@ jobs:
     #             set -xe
     #             useradd -m ci
     #             pacman -Syu --noconfirm
-    #             pacman -S --noconfirm --needed base-devel sudo git sip chmlib icu jxrlib hunspell libmtp libusbx libwmf optipng podofo python-apsw python-beautifulsoup4 python-cssselect python-css-parser python-dateutil python-dbus python-dnspython python-dukpy python-feedparser python-html2text python-html5-parser python-lxml python-markdown python-mechanize python-msgpack python-netifaces python-unrardll python-pillow python-psutil python-pygments python-pyqt5 python-regex python-zeroconf python-pyqtwebengine qt5-x11extras qt5-svg qt5-imageformats udisks2 hyphen python-pychm
+    #             pacman -S --noconfirm --needed base-devel sudo git sip chmlib icu jxrlib hunspell libmtp libusbx libwmf optipng podofo python-apsw python-beautifulsoup4 python-cssselect python-css-parser python-dateutil python-dbus python-dnspython python-dukpy python-feedparser python-html2text python-html5-parser python-lxml python-markdown python-mechanize python-msgpack python-netifaces python-unrardll python-pillow python-psutil python-pygments python-pyqt5 python-regex python-zeroconf python-pyqtwebengine qt5-x11extras qt5-svg qt5-imageformats udisks2 hyphen python-pychm espeak-ng
     #
     #         - name: Checkout source code
     #           uses: actions/checkout@master

bypy/linux.conf

@@ -1,4 +1,4 @@
 image 'https://partner-images.canonical.com/core/xenial/current/ubuntu-xenial-core-cloudimg-{}-root.tar.gz'
 
 # Build time deps for Qt. See http://doc.qt.io/qt-5/linux-requirements.html and https://wiki.qt.io/Building_Qt_5_from_Git
-deps 'flex bison gperf ruby libx11-dev libxext-dev libxfixes-dev libxi-dev libxrender-dev libxcb1-dev libx11-xcb-dev libxcb-glx0-dev libxcb-keysyms1-dev libxcb-image0-dev libxcb-shm0-dev libxcb-icccm4-dev libxcb-sync0-dev libxcb-xfixes0-dev libxcb-shape0-dev libxcb-randr0-dev libxcb-render-util0-dev libxcb-xinerama0-dev xkb-data libglu1-mesa-dev libxkbcommon-dev libinput-dev libxkbcommon-x11-dev libgtk2.0-dev libvulkan-dev libwayland-dev libwayland-egl1-mesa libegl1-mesa-dev libxtst-dev libnss3-dev libfreetype6-dev libfontconfig-dev'
+deps 'flex bison gperf ruby libx11-dev libxext-dev libxfixes-dev libxi-dev libxrender-dev libxcb1-dev libx11-xcb-dev libxcb-glx0-dev libxcb-keysyms1-dev libxcb-image0-dev libxcb-shm0-dev libxcb-icccm4-dev libxcb-sync0-dev libxcb-xfixes0-dev libxcb-shape0-dev libxcb-randr0-dev libxcb-render-util0-dev libxcb-xinerama0-dev xkb-data libglu1-mesa-dev libxkbcommon-dev libinput-dev libxkbcommon-x11-dev libgtk2.0-dev libvulkan-dev libwayland-dev libwayland-egl1-mesa libegl1-mesa-dev libxtst-dev libnss3-dev libfreetype6-dev libfontconfig-dev libespeak-ng-dev'

setup/extensions.json

@@ -179,6 +179,12 @@
         "sources": "calibre/utils/cocoa.m calibre/utils/cocoa_wrapper.c",
         "ldflags": "-framework Cocoa"
     },
+    {
+        "name": "espeak",
+        "only": "linux haiku",
+        "sources": "calibre/utils/tts/espeak.cpp",
+        "libraries": "espeak-ng"
+    },
     {
         "name": "libusb",
         "only": "macos linux haiku",

setup/unix-ci.py

@@ -111,7 +111,7 @@ def run_python(*args):
 def install_linux_deps():
     run('sudo', 'apt-get', 'update', '-y')
     # run('sudo', 'apt-get', 'upgrade', '-y')
-    run('sudo', 'apt-get', 'install', '-y', 'gettext', 'libgl1-mesa-dev')
+    run('sudo', 'apt-get', 'install', '-y', 'gettext', 'libgl1-mesa-dev', 'libespeak-ng-dev')
 
 
 def main():

src/calibre/constants.py

@@ -253,7 +253,7 @@ class ExtensionsImporter:
         elif ismacos:
             extra = ('usbobserver', 'cocoa', 'libusb', 'libmtp')
         elif isfreebsd or ishaiku or islinux:
-            extra = ('libusb', 'libmtp')
+            extra = ('libusb', 'libmtp', 'espeak')
         else:
             extra = ()
         self.calibre_extensions = frozenset(extensions + extra)

src/calibre/utils/tts/espeak.cpp

@@ -0,0 +1,56 @@
+/*
+ * espeak.cpp
+ * Copyright (C) 2020 Kovid Goyal <kovid at kovidgoyal.net>
+ *
+ * Distributed under terms of the GPL3 license.
+ */
+
+
+#define PY_SSIZE_T_CLEAN
+#define UNICODE
+#define _UNICODE
+#include <Python.h>
+#include <espeak-ng/speak_lib.h>
+
+static bool initialize_called = false;
+
+// Boilerplate {{{
+#define M(name, args) { #name, (PyCFunction)name, args, ""}
+static PyMethodDef methods[] = {
+    {NULL, NULL, 0, NULL}
+};
+#undef M
+
+static int
+exec_module(PyObject *m) {
+#define AI(name) if (PyModule_AddIntMacro(m, name) != 0) { return -1; }
+#undef AI
+    int sample_rate = espeak_Initialize(AUDIO_OUTPUT_SYNCH_PLAYBACK, 0, NULL, espeakINITIALIZE_DONT_EXIT);
+    if (sample_rate == -1) {
+        PyErr_SetString(PyExc_OSError, "Failed to initialize espeak library, are the data files missing?");
+        return 1;
+    }
+    initialize_called = true;
+    return 0;
+}
+
+static PyModuleDef_Slot slots[] = { {Py_mod_exec, (void*)exec_module}, {0, NULL} };
+
+static struct PyModuleDef module_def = {PyModuleDef_HEAD_INIT};
+
+static void
+finalize(void*) {
+    if (initialize_called) {
+        espeak_Terminate();
+        initialize_called = false;
+    }
+}
+
+CALIBRE_MODINIT_FUNC PyInit_espeak(void) {
+    module_def.m_name     = "espeak";
+    module_def.m_doc      = "espeak-ng wrapper";
+    module_def.m_slots    = slots;
+    module_def.m_free     = finalize;
+    module_def.m_methods  = methods;
+	return PyModuleDef_Init(&module_def);
+}