Change to Blender 2.77 style bpy.types.Image.bindcode.

This idiotic change was introduced in stealth mode from 2.76 to 2.77. It has something to do with 3d textures, supposedly. I think the person who made this change is simply an asshat...

korlib/texture.cpp

@@ -30,6 +30,8 @@
 #   define GL_GENERATE_MIPMAP 0x8191
 #endif // GL_GENERATE_MIPMAP
 
+#define TEXTARGET_TEXTURE_2D 0
+
 extern "C" {
 
 typedef struct {
@@ -80,8 +82,16 @@ static int pyGLTexture___init__(pyGLTexture* self, PyObject* args, PyObject* kwd
 static PyObject* pyGLTexture__enter__(pyGLTexture* self) {
     // Is the image already loaded?
     PyObjectRef bindcode = PyObject_GetAttrString(self->m_blenderImage, "bindcode");
+
+    // bindcode changed to a sequence in 2.77. We want the first element for a 2D texture.
+    // Why did we make this change, exactly?
+    if (PySequence_Check(bindcode)) {
+        bindcode = PySequence_GetItem(bindcode, TEXTARGET_TEXTURE_2D);
+    }
+
+    // Now we should have a GLuint...
     if (!PyLong_Check(bindcode)) {
-        PyErr_SetString(PyExc_RuntimeError, "Image bindcode isn't a long?");
+        PyErr_SetString(PyExc_TypeError, "Image bindcode isn't a long?");
         return NULL;
     }
 
@@ -92,11 +102,24 @@ static PyObject* pyGLTexture__enter__(pyGLTexture* self) {
     // Load image into GL
     if (self->m_ownIt) {
         PyObjectRef new_bind = PyObject_CallMethod(self->m_blenderImage, "gl_load", NULL);
-        if (PyLong_AsSize_t(new_bind) != 0) {
-            PyErr_SetString(PyExc_RuntimeError, "failed to load image into GL");
+        if (!PyLong_Check(new_bind)) {
+            PyErr_SetString(PyExc_TypeError, "gl_load() did not return a long");
+            return NULL;
+        }
+        ssize_t result = PyLong_AsSize_t(new_bind);
+        if (result != GL_NO_ERROR) {
+            PyErr_Format(PyExc_RuntimeError, "gl_load() error: %d", result);
             return NULL;
         }
         bindcode = PyObject_GetAttrString(self->m_blenderImage, "bindcode");
+        if (PySequence_Check(bindcode)) {
+            bindcode = PySequence_GetItem(bindcode, TEXTARGET_TEXTURE_2D);
+        }
+        // Now we should have a GLuint...
+        if (!PyLong_Check(bindcode)) {
+            PyErr_SetString(PyExc_TypeError, "Image bindcode isn't a long?");
+            return NULL;
+        }
         image_bindcode = PyLong_AsUnsignedLong(bindcode);
     }
 

korman/__init__.py

@@ -22,10 +22,10 @@ from . import operators
 bl_info = {
     "name":        "Korman",
     "author":      "Guild of Writers",
-    "blender":     (2, 74, 0),  # I can't be bothered to support old stuff
+    "blender":     (2, 77, 0),
     "location":    "File > Import-Export",
     "description": "Exporter for Cyan Worlds' Plasma Engine",
-    "warning":     "alpha",
+    "warning":     "beta",
     "category":    "System",  # Eventually, we will hide some of the default
                               # Blender panels (think materials)
 }

korman/exporter/material.py

@@ -572,9 +572,10 @@ class MaterialConverter:
 
     def _resize_image(self, image, width, height):
         image.scale(width, height)
+        image.update()
 
         # If the image is already loaded into OpenGL, we need to refresh it to get the scaling.
-        if image.bindcode != 0:
+        if image.bindcode[0] != 0:
             image.gl_free()
             image.gl_load()
 

korman/korlib/texture.py

@@ -22,7 +22,7 @@ bgl.GL_BGRA = 0x80E1
 
 class GLTexture:
     def __init__(self, blimg):
-        self._ownit = (blimg.bindcode == 0)
+        self._ownit = (blimg.bindcode[0] == 0)
         self._blimg = blimg
 
     def __enter__(self):
@@ -32,9 +32,9 @@ class GLTexture:
                 raise RuntimeError("failed to load image")
 
         self._previous_texture = self._get_integer(bgl.GL_TEXTURE_BINDING_2D)
-        self._changed_state = (self._previous_texture != self._blimg.bindcode)
+        self._changed_state = (self._previous_texture != self._blimg.bindcode[0])
         if self._changed_state:
-            bgl.glBindTexture(bgl.GL_TEXTURE_2D, self._blimg.bindcode)
+            bgl.glBindTexture(bgl.GL_TEXTURE_2D, self._blimg.bindcode[0])
         return self
 
     def __exit__(self, type, value, traceback):