[Bf-blender-cvs] [4102e7ed81c] master: Fix T77032: Crash when creating GPUOffscreen without GPUContext in Python

[Germano Cavalcante]

Commit: 4102e7ed81cb2c98dc0ade362f47843c7c13b5a7
Author: Germano Cavalcante
Date:   Tue May 26 11:38:09 2020 -0300
Branches: master
https://developer.blender.org/rB4102e7ed81cb2c98dc0ade362f47843c7c13b5a7

Fix T77032: Crash when creating GPUOffscreen without GPUContext in Python

===================================================================

M	source/blender/python/gpu/gpu_py_offscreen.c

===================================================================

diff --git a/source/blender/python/gpu/gpu_py_offscreen.c b/source/blender/python/gpu/gpu_py_offscreen.c
index 280f09d67c9..311cf2b8c73 100644
--- a/source/blender/python/gpu/gpu_py_offscreen.c
+++ b/source/blender/python/gpu/gpu_py_offscreen.c
@@ -40,6 +40,7 @@
 #include "DNA_screen_types.h"
 #include "DNA_view3d_types.h"
 
+#include "GPU_context.h"
 #include "GPU_framebuffer.h"
 #include "GPU_texture.h"
 
@@ -84,7 +85,7 @@ static PyObject *bpygpu_offscreen_new(PyTypeObject *UNUSED(self), PyObject *args
 {
   BPYGPU_IS_INIT_OR_ERROR_OBJ;
 
-  GPUOffScreen *ofs;
+  GPUOffScreen *ofs = NULL;
   int width, height, samples = 0;
   char err_out[256];
 
@@ -94,7 +95,12 @@ static PyObject *bpygpu_offscreen_new(PyTypeObject *UNUSED(self), PyObject *args
     return NULL;
   }
 
-  ofs = GPU_offscreen_create(width, height, samples, true, false, err_out);
+  if (GPU_context_active_get()) {
+    ofs = GPU_offscreen_create(width, height, samples, true, false, err_out);
+  }
+  else {
+    strncpy(err_out, "No active GPU context found", 256);
+  }
 
   if (ofs == NULL) {
     PyErr_Format(PyExc_RuntimeError,