From f1c7c786943e66e45a632491192a8b4a40da45e3 Mon Sep 17 00:00:00 2001
From: Hugo Parente Lima <hugo.pl@gmail.com>
Date: Wed, 1 Jun 2011 15:40:48 -0300
Subject: Port all buffer related code to the new Shiboken buffer interface.
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Reviewer: Renato Araújo <renato.filho@openbossa.org>
          Luciano Wolf <luciano.wolf@openbossa.org>
---
 PySide/QtCore/typesystem_core.xml      | 55 +++++++++++-----------------------
 PySide/QtGui/typesystem_gui_common.xml | 43 ++++++++++----------------
 PySide/QtOpenGL/typesystem_opengl.xml  |  4 +--
 3 files changed, 36 insertions(+), 66 deletions(-)

(limited to 'PySide')

diff --git a/PySide/QtCore/typesystem_core.xml b/PySide/QtCore/typesystem_core.xml
index 2e1cbad48..20946454a 100644
--- a/PySide/QtCore/typesystem_core.xml
+++ b/PySide/QtCore/typesystem_core.xml
@@ -518,9 +518,9 @@
             <replace-type modified-type="PyObject" />
         </modify-argument>
         <inject-code>
-            const uchar* d = %CPPSELF.%FUNCTION_NAME();
+            const void* d = %CPPSELF.%FUNCTION_NAME();
             if (d) {
-                %PYARG_0 = PyBuffer_FromMemory(const_cast&lt;uchar*>(d), %CPPSELF.size());
+                %PYARG_0 = Shiboken::Buffer::newObject(d, %CPPSELF.size());
             } else {
                 Py_INCREF(Py_None);
                 %PYARG_0 = Py_None;
@@ -528,21 +528,13 @@
         </inject-code>
     </modify-function>
     <template name="QResource_registerResource">
-        PyTypeObject* pyType = %PYARG_1->ob_type;
-        if (pyType->tp_as_buffer
-            &amp;&amp; pyType->tp_as_buffer->bf_getreadbuffer
-            &amp;&amp; pyType->tp_as_buffer->bf_getsegcount(%PYARG_1, 0) == 1) {
-            void* ptr;
-            pyType->tp_as_buffer->bf_getreadbuffer(%PYARG_1, 0, &amp;ptr);
-            %PYARG_0 = %CONVERTTOPYTHON[bool](%CPPSELF.%FUNCTION_NAME(const_cast&lt;const uchar*>((uchar*)ptr), %2));
-        } else {
-            PyErr_SetString(PyExc_TypeError, "The object must support buffer protocol with just one segment.");
-        }
+        uchar* ptr = (uchar*) Shiboken::Buffer::getPointer(%PYARG_1);
+        %PYARG_0 = %CONVERTTOPYTHON[bool](%CPPSELF.%FUNCTION_NAME(const_cast&lt;const uchar*>(ptr), %2));
     </template>
 
     <modify-function signature="unregisterResource(const uchar*, const QString&amp;)" rename="unregisterResourceData">
       <modify-argument index="1">
-        <replace-type modified-type="PyObject"/>
+        <replace-type modified-type="PyBuffer"/>
       </modify-argument>
       <inject-code>
         <insert-template name="QResource_registerResource" />
@@ -550,7 +542,7 @@
     </modify-function>
     <modify-function signature="registerResource(const uchar*, const QString&amp;)" rename="registerResourceData">
       <modify-argument index="1">
-        <replace-type modified-type="PyObject"/>
+        <replace-type modified-type="PyBuffer"/>
       </modify-argument>
       <inject-code>
         <insert-template name="QResource_registerResource" />
@@ -1968,15 +1960,13 @@
             <replace-type modified-type="PyBuffer"/>
         </modify-argument>
         <inject-code>
-        const void* ptr;
-        Py_ssize_t len;
-        PyObject_AsReadBuffer(%PYARG_1, &amp;ptr, &amp;len);
-        %PYARG_0 = %CONVERTTOPYTHON[bool](%CPPSELF.%FUNCTION_NAME((uchar*)ptr));
+        uchar* ptr = (uchar*) Shiboken::Buffer::getPointer(%PYARG_1);
+        %PYARG_0 = %CONVERTTOPYTHON[bool](%CPPSELF.%FUNCTION_NAME(ptr));
         </inject-code>
     </modify-function>
     <modify-function signature="map(qint64,qint64,QFile::MemoryMapFlags)">
         <inject-code>
-            %PYARG_0 = PyBuffer_FromReadWriteMemory(%CPPSELF.%FUNCTION_NAME(%1, %2, %3), %2);
+            %PYARG_0 = Shiboken::Buffer::newObject(%CPPSELF.%FUNCTION_NAME(%1, %2, %3), %2, Shiboken::Buffer::ReadWrite);
         </inject-code>
     </modify-function>
     <modify-function signature="remove()" allow-thread="yes"/>
@@ -2175,22 +2165,15 @@
   <object-type name="QTranslator">
     <modify-function signature="load(const uchar*, int)">
         <modify-argument index="1">
-            <replace-type modified-type="PyObject" />
+            <replace-type modified-type="PyBuffer" />
         </modify-argument>
         <modify-argument index="2">
             <remove-argument />
         </modify-argument>
         <inject-code>
-            PyTypeObject* pyType = %PYARG_1->ob_type;
-            if (pyType->tp_as_buffer
-                &amp;&amp; pyType->tp_as_buffer->bf_getreadbuffer
-                &amp;&amp; pyType->tp_as_buffer->bf_getsegcount(%PYARG_1, 0) == 1) {
-                void* ptr;
-                Py_ssize_t size = pyType->tp_as_buffer->bf_getreadbuffer(%PYARG_1, 0, &amp;ptr);
-                %PYARG_0 = %CONVERTTOPYTHON[bool](%CPPSELF.%FUNCTION_NAME(const_cast&lt;const uchar*>((uchar*)ptr), size));
-            } else {
-                PyErr_SetString(PyExc_TypeError, "The object must support buffer protocol with just one segment.");
-            }
+            Py_ssize_t size;
+            uchar* ptr = (uchar*) Shiboken::Buffer::getPointer(%PYARG_1, &amp;size);
+            %PYARG_0 = %CONVERTTOPYTHON[bool](%CPPSELF.%FUNCTION_NAME(const_cast&lt;const uchar*>(ptr), size));
         </inject-code>
     </modify-function>
   </object-type>
@@ -2309,15 +2292,13 @@
             <replace-type modified-type="PyBuffer"/>
         </modify-argument>
         <inject-code>
-            const void* ptr;
-            Py_ssize_t len;
-            PyObject_AsReadBuffer(%PYARG_1, &amp;ptr, &amp;len);
-            %PYARG_0 = %CONVERTTOPYTHON[bool](%CPPSELF.%FUNCTION_NAME((uchar*)ptr));
+            uchar* ptr = (uchar*)Shiboken::Buffer::getPointer(%PYARG_1);
+            %PYARG_0 = %CONVERTTOPYTHON[bool](%CPPSELF.%FUNCTION_NAME(ptr));
         </inject-code>
     </modify-function>
     <modify-function signature="map(qint64,qint64,QFile::MemoryMapFlags)">
         <inject-code>
-            %PYARG_0 = PyBuffer_FromReadWriteMemory(%CPPSELF.%FUNCTION_NAME(%1, %2, %3), %2);
+            %PYARG_0 = Shiboken::Buffer::newObject(%CPPSELF.%FUNCTION_NAME(%1, %2, %3), %2, Shiboken::Buffer::ReadWrite);
         </inject-code>
     </modify-function>
 
@@ -2983,8 +2964,8 @@
   </object-type>
 
   <!-- We will use inject code to implement the function below -->
-  <rejection class="QEasingCurve" function-name="setCustomType" /> 
-  <rejection class="QEasingCurve" function-name="customType" /> 
+  <rejection class="QEasingCurve" function-name="setCustomType" />
+  <rejection class="QEasingCurve" function-name="customType" />
   <value-type name="QEasingCurve" since="4.6">
     <extra-includes>
       <include file-name="pysideweakref.h" location="global"/>
diff --git a/PySide/QtGui/typesystem_gui_common.xml b/PySide/QtGui/typesystem_gui_common.xml
index 5ff06da5e..523dae9ef 100644
--- a/PySide/QtGui/typesystem_gui_common.xml
+++ b/PySide/QtGui/typesystem_gui_common.xml
@@ -415,13 +415,11 @@
   <value-type name="QBitmap" >
     <modify-function signature="fromData(QSize,const uchar*,QImage::Format)">
       <modify-argument index="2">
-        <replace-type modified-type="PyObject"/>
+        <replace-type modified-type="PyBuffer"/>
       </modify-argument>
       <inject-code>
-        const void* buffer;
-        Py_ssize_t size;
-        if (PyObject_AsReadBuffer(%PYARG_2, &amp;buffer, &amp;size) != -1)
-            %PYARG_0 = %CONVERTTOPYTHON[QBitmap](QBitmap::fromData(%1, (const uchar*)buffer, %3));
+        uchar* buffer = (uchar*) Shiboken::Buffer::getPointer(%PYARG_2);
+        %PYARG_0 = %CONVERTTOPYTHON[QBitmap](QBitmap::fromData(%1, buffer, %3));
       </inject-code>
     </modify-function>
   </value-type>
@@ -553,25 +551,24 @@
             <replace-type modified-type="PyObject"/>
         </modify-argument>
         <inject-code>
-            %PYARG_0 = PyBuffer_FromMemory(const_cast&lt;char*&gt;(%CPPSELF.data()), %CPPSELF.size());
+            %PYARG_0 = Shiboken::Buffer::newObject(%CPPSELF.data(), %CPPSELF.size());
         </inject-code>
     </modify-function>
     <modify-function signature="setData(const char*,uint)">
         <modify-argument index="1">
             <replace-type modified-type="PyBuffer"/>
             <conversion-rule class="target">
-                PyObject *%out = PyBuffer_FromMemory(const_cast&lt;char*&gt;(%in), size);
+                PyObject* %out = Shiboken::Buffer::newObject(%in, size);
             </conversion-rule>
             <conversion-rule class="native">
-                const char *%out;
-                Py_ssize_t buffer_len;
-                PyObject_AsCharBuffer(arg, &amp;%out, &amp;buffer_len);
+                Py_ssize_t bufferLen;
+                char* %out = (char*) Shiboken::Buffer::getPointer(arg, &amp;bufferLen);
             </conversion-rule>
         </modify-argument>
         <modify-argument index="2">
             <remove-argument/>
             <conversion-rule class="native">
-                uint %out = buffer_len;
+                uint %out = bufferLen;
             </conversion-rule>
         </modify-argument>
     </modify-function>
@@ -975,20 +972,12 @@
     </extra-includes>
 
     <template name="qimage_buffer_constructor">
-        PyTypeObject* pyType = reinterpret_cast&lt;PyTypeObject*>(%PYARG_1->ob_type);
-        if (pyType->tp_as_buffer
-            &amp;&amp; pyType->tp_as_buffer->bf_getreadbuffer
-            &amp;&amp; pyType->tp_as_buffer->bf_getsegcount(%PYARG_1, 0) == 1) {
-            void* ptr;
-            pyType->tp_as_buffer->bf_getreadbuffer(%PYARG_1, 0, &amp;ptr);
-            %0 = new %TYPE((uchar*)ptr, %ARGS);
-        } else {
-            PyErr_SetString(PyExc_TypeError, "The object must support buffer protocol with just one segment.");
-        }
+        uchar* ptr = (uchar*) Shiboken::Buffer::getPointer(%PYARG_1);
+        %0 = new %TYPE(ptr, %ARGS);
     </template>
     <modify-function signature="QImage(uchar *,int,int,int,QImage::Format)">
         <modify-argument index="1">
-            <replace-type modified-type="PyObject"/>
+            <replace-type modified-type="PyBuffer"/>
         </modify-argument>
         <inject-code>
             <insert-template name="qimage_buffer_constructor">
@@ -998,7 +987,7 @@
     </modify-function>
     <modify-function signature="QImage(uchar*,int,int,QImage::Format)">
         <modify-argument index="1">
-            <replace-type modified-type="PyObject"/>
+            <replace-type modified-type="PyBuffer"/>
         </modify-argument>
         <inject-code>
             <insert-template name="qimage_buffer_constructor">
@@ -1054,23 +1043,23 @@
 
     <modify-function signature="constBits()const" since="4.7">
         <inject-code>
-            %PYARG_0 = PyBuffer_FromMemory(const_cast&lt;uchar*>(%CPPSELF.%FUNCTION_NAME()), %CPPSELF.byteCount());
+            %PYARG_0 = Shiboken::Buffer::newObject(%CPPSELF.%FUNCTION_NAME(), %CPPSELF.byteCount());
         </inject-code>
     </modify-function>
     <modify-function signature="bits()">
         <inject-code>
             // byteCount() is only available on Qt4.7, so we use bytesPerLine * height
-            %PYARG_0 = PyBuffer_FromReadWriteMemory(%CPPSELF.%FUNCTION_NAME(), %CPPSELF.bytesPerLine() * %CPPSELF.height());
+            %PYARG_0 = Shiboken::Buffer::newObject(%CPPSELF.%FUNCTION_NAME(), %CPPSELF.bytesPerLine() * %CPPSELF.height(), Shiboken::Buffer::ReadWrite);
         </inject-code>
     </modify-function>
     <modify-function signature="constScanLine(int)const" since="4.7">
         <inject-code>
-            %PYARG_0 = PyBuffer_FromMemory(const_cast&lt;uchar*>(%CPPSELF.%FUNCTION_NAME(%1)), %CPPSELF.bytesPerLine());
+            %PYARG_0 = Shiboken::Buffer::newObject(%CPPSELF.%FUNCTION_NAME(%1), %CPPSELF.bytesPerLine());
         </inject-code>
     </modify-function>
     <modify-function signature="scanLine(int)">
         <inject-code>
-            %PYARG_0 = PyBuffer_FromReadWriteMemory(%CPPSELF.%FUNCTION_NAME(%1), %CPPSELF.bytesPerLine());
+            %PYARG_0 = Shiboken::Buffer::newObject(%CPPSELF.%FUNCTION_NAME(%1), %CPPSELF.bytesPerLine(), Shiboken::Buffer::ReadWrite);
         </inject-code>
     </modify-function>
     <!--
diff --git a/PySide/QtOpenGL/typesystem_opengl.xml b/PySide/QtOpenGL/typesystem_opengl.xml
index b694400ee..abed71869 100644
--- a/PySide/QtOpenGL/typesystem_opengl.xml
+++ b/PySide/QtOpenGL/typesystem_opengl.xml
@@ -130,9 +130,9 @@
             Py_INCREF(Py_None);
             %PYARG_0 = Py_None;
         } else if (%1 == QGLBuffer::ReadOnly) {
-            %PYARG_0 = PyBuffer_FromMemory(data, dataSize);
+            %PYARG_0 = Shiboken::Buffer::newObject(data, dataSize, Shiboken::Buffer::ReadOnly);
         } else {
-            %PYARG_0 = PyBuffer_FromReadWriteMemory(data, dataSize);
+            %PYARG_0 = Shiboken::Buffer::newObject(data, dataSize, Shiboken::Buffer::ReadWrite);
         }
       </inject-code>
     </modify-function>
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