diff options
Diffstat (limited to 'intern/cycles/blender/addon/osl.py')
| -rw-r--r-- | intern/cycles/blender/addon/osl.py | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/intern/cycles/blender/addon/osl.py b/intern/cycles/blender/addon/osl.py new file mode 100644 index 00000000000..aac1e2422b9 --- /dev/null +++ b/intern/cycles/blender/addon/osl.py @@ -0,0 +1,127 @@ +# +# Copyright 2011, Blender Foundation. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License +# as published by the Free Software Foundation; either version 2 +# of the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software Foundation, +# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. +# + +# <pep8 compliant> + +import bpy, _cycles, os, tempfile + +# compile .osl file with given filepath to temporary .oso file +def osl_compile(input_path, report): + output_file = tempfile.NamedTemporaryFile(mode='w', suffix=".oso", delete=False) + output_path = output_file.name + output_file.close() + + ok = _cycles.osl_compile(input_path, output_path) + + if ok: + report({'INFO'}, "OSL shader compilation succeeded") + + return ok, output_path + +# compile and update shader script node +def update_script_node(node, report): + import os, shutil + + if node.mode == 'EXTERNAL': + # compile external script file + script_path = bpy.path.abspath(node.filepath, library=node.id_data.library) + script_path_noext, script_ext = os.path.splitext(script_path) + + if script_ext == ".oso": + # it's a .oso file, no need to compile + ok, oso_path = True, script_path + oso_file_remove = False + elif script_ext == ".osl": + # compile .osl file + ok, oso_path = osl_compile(script_path, report) + oso_file_remove = True + + if ok: + # copy .oso from temporary path to .osl directory + dst_path = script_path_noext + ".oso" + try: + shutil.copy2(oso_path, dst_path) + except: + report({'ERROR'}, "Failed to write .oso file next to external .osl file at " + dst_path) + elif os.path.dirname(node.filepath) == "": + # module in search path + oso_path = node.filepath + oso_file_remove = False + ok = True + else: + # unknown + report({'ERROR'}, "External shader script must have .osl or .oso extension, or be a module name") + ok = False + + if ok: + node.bytecode = "" + node.bytecode_hash = "" + + elif node.mode == 'INTERNAL' and node.script: + # internal script, we will store bytecode in the node + script = node.script + osl_path = bpy.path.abspath(script.filepath, library=script.library) + + if script.is_in_memory or script.is_dirty or script.is_modified or not os.path.exists(osl_path): + # write text datablock contents to temporary file + osl_file = tempfile.NamedTemporaryFile(mode='w', suffix=".osl", delete=True) + osl_file.write(script.as_string()) + osl_file.flush() + ok, oso_path = osl_compile(osl_file.name, report) + oso_file_remove = False + osl_file.close() + else: + # compile text datablock from disk directly + ok, oso_path = osl_compile(osl_path, report) + oso_file_remove = False + + if ok: + # read bytecode + try: + oso = open(oso_path, 'r') + node.bytecode = oso.read() + oso.close() + except: + import traceback + traceback.print_exc() + + report({'ERROR'}, "Can't read OSO bytecode to store in node at %r" % oso_path) + ok = False + + else: + report({'WARNING'}, "No text or file specified in node, nothing to compile") + return + + if ok: + # now update node with new sockets + ok = _cycles.osl_update_node(node.id_data.as_pointer(), node.as_pointer(), oso_path) + + if not ok: + report({'ERROR'}, "OSL query failed to open " + oso_path) + else: + report({'ERROR'}, "OSL script compilation failed, see console for errors") + + # remove temporary oso file + if oso_file_remove: + try: + os.remove(oso_path) + except: + pass + + return ok + |