wined3d: Always set GL_PIXEL_UNPACK_BUFFER binding before calling wined3d_texture_gl_upload_bo().

dlls/wined3d/texture.c

@@ -2532,6 +2532,9 @@ static void wined3d_texture_gl_upload_data(struct wined3d_context *context,
 
         src_mem = wined3d_context_gl_map_bo_address(context_gl, &bo, src_slice_pitch * update_d, WINED3D_MAP_READ);
 
+        GL_EXTCALL(glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0));
+        checkGLcall("glBindBuffer");
+
         for (z = 0; z < update_d; ++z, src_mem += src_slice_pitch)
         {
             if (decompress)
@@ -2561,6 +2564,11 @@ static void wined3d_texture_gl_upload_data(struct wined3d_context *context,
             checkGLcall("glBindBuffer");
             offset += bo.buffer_object->buffer_offset;
         }
+        else
+        {
+            GL_EXTCALL(glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0));
+            checkGLcall("glBindBuffer");
+        }
 
         wined3d_texture_gl_upload_bo(src_format, target, level, src_row_pitch, src_slice_pitch, dst_x,
                 dst_y, dst_z, update_w, update_h, update_d, offset, srgb, dst_texture, gl_info);