984 lines
41 KiB
Python
984 lines
41 KiB
Python
from typing import Dict, List, Any, Tuple
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from operator import attrgetter
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from collections import defaultdict
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from dataclasses import dataclass
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from itertools import islice, chain
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from urllib.parse import unquote
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from io import BytesIO
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import os.path
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import struct
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from collada.util import matrix_transpose, find_semantics
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from collada import parse
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from collada import types
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from collada.generate import renderer
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from collada import buffer
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from prettyprinter import pprint, install_extras
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install_extras(include=["dataclasses"])
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@dataclass
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class State:
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# arbitrary binary data, including vertex buffers and index
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# buffers
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vertex_buffer: BytesIO
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index_buffer: BytesIO
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# geometry__indices:
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# keys: collada <geometry> id
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# values: the index the geometry was placed at in the C++ geometries[] array
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geometry__indices: Dict[str, int]
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# geometry__vertex_index_tables:
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# keys: collada <geometry> id
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# values: vertex_index_table (see buffer.py)
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geometry__vertex_index_tables: Dict[str, List[int]]
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# symbol_names: C++ symbols/names already emitted
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symbol_names: Dict[str, Any]
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# emitted_input_elements_arrays
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emitted_input_elements_arrays: Dict[str, tuple]
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# channel nodes: node_id to list of sanitized target names
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node_animation_channels: Dict[str, set]
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# linearized_nodes
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linearized_nodes: List[types.Node]
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node_parents: Dict[int, int]
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# image_paths: filename: path
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image_paths: Dict[str, str]
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# image_indices: image_id: image_index
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image_indices: Dict[str, str]
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# resource_names: resource compiler names already emitted
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resource_names: Dict[str, str]
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# effect_textures_by_texcoord: (effect_id, channel): [sampler_sid]
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effect_textures_by_texcoord: Dict[Tuple[str, str], list]
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def __init__(self):
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self.vertex_buffer = BytesIO()
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self.index_buffer = BytesIO()
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self.geometry__indices = {}
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self.geometry__vertex_index_tables = {}
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self.symbol_names = {}
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self.emitted_input_elements_arrays = {}
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self.node_animation_channels = defaultdict(set)
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self.linearized_nodes = []
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self.node_parents = {}
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self.image_paths = {}
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self.image_indices = {}
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self.resource_names = {}
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self.effect_textures_by_texcoord = defaultdict(list)
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def _sanitize(name):
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return name.replace(' ', '_').replace('-', '_').replace('.', '_').replace('/', '_')
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def _validate_name_value(name, value):
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assert name is not None, name
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assert value is not None, value
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assert type(name) is str, name
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assert '\\' not in name, name
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def sanitize_resource_name(state, name, value):
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_validate_name_value(name, value)
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assert '/' not in name, name
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resource_name = f'_{_sanitize(name).upper()}'
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assert resource_name not in state.resource_names or state.resource_names[resource_name] is value
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state.resource_names[resource_name] = value
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return resource_name
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def sanitize_name(state, name, value, *, allow_slash=False):
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_validate_name_value(name, value)
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assert ' ' not in name, name
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if not allow_slash:
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assert '/' not in name, name
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c_id = _sanitize(name).lower()
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assert c_id not in state.symbol_names or state.symbol_names[c_id] is value
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state.symbol_names[c_id] = value
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return c_id
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def renderbin(f, elems, t):
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fmt = {
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float: '<f',
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int: '<i',
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}[t]
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for e in elems:
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assert type(e) is t, (e, elems)
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f.write(struct.pack(fmt, e))
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def offset_table_key(offset_table):
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for input, source in offset_table:
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semantic_index = 0 if input.set is None else input.set
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assert all(param.type == 'float' for param in source.technique_common.accessor.params)
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assert type(source.technique_common.accessor.stride) is int
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stride = source.technique_common.accessor.stride
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semantic = "POSITION" if input.semantic == "VERTEX" else input.semantic
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yield semantic, semantic_index, stride
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def input_elements_key_name(key):
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return "_".join(map(str, chain.from_iterable(key))).lower()
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def render_input_elements(state, collada, geometry_name, offset_tables):
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for i, offset_table in enumerate(offset_tables):
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key = tuple(offset_table_key(offset_table))
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key_name = input_elements_key_name(key)
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if key_name in state.emitted_input_elements_arrays:
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assert state.emitted_input_elements_arrays[key_name][1] == key
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continue
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state.emitted_input_elements_arrays[key_name] = (i, key)
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yield f"input_element const input_elements_{key_name}[] = {{"
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for semantic, semantic_index, stride in key:
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yield "{"
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yield f'.semantic = "{semantic}",'
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yield f".semantic_index = {semantic_index},"
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yield f".format = input_format::FLOAT{stride},"
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yield "},"
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yield "};"
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def render_triangles(state, collada, geometry_name, primitive_elements, mesh_buffer_state):
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yield from render_input_elements(state, collada, geometry_name, mesh_buffer_state.offset_tables)
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yield f"triangles const triangles_{geometry_name}[] = {{"
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for i, triangles in enumerate(primitive_elements):
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assert type(triangles) is types.Triangles, type(triangles)
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key = tuple(offset_table_key(mesh_buffer_state.offset_tables[i]))
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key_name = input_elements_key_name(key)
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index, _ = state.emitted_input_elements_arrays[key_name]
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yield "{"
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yield f".count = {triangles.count}, // triangles"
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yield f".index_offset = {mesh_buffer_state.index_buffer_offsets[i]}, // indices"
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yield f".inputs_index = {index}, // index into inputs_list"
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yield "},"
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yield "};"
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def render_geometry(state, collada, geometry):
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geometry_name = sanitize_name(state, geometry.id, geometry)
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mesh = geometry.geometric_element
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assert type(mesh) is types.Mesh
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mesh_buffer_state = buffer.mesh_vertex_index_buffer(collada, mesh)
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vertex_buffer_offset = state.vertex_buffer.tell()
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renderbin(state.vertex_buffer, mesh_buffer_state.vertex_buffer, float)
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vertex_buffer_size = state.vertex_buffer.tell() - vertex_buffer_offset
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index_buffer_offset = state.index_buffer.tell()
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renderbin(state.index_buffer, mesh_buffer_state.index_buffer, int)
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index_buffer_size = state.index_buffer.tell() - index_buffer_offset
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yield from render_triangles(state, collada, geometry_name, mesh.primitive_elements, mesh_buffer_state)
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# used by skin_vertex_buffer
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state.geometry__vertex_index_tables[geometry.id] = mesh_buffer_state.vertex_index_table
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yield f"geometry const geometry_{geometry_name} = {{"
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yield ".mesh = {"
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yield f".triangles = triangles_{geometry_name},"
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yield f".triangles_count = {len(mesh.primitive_elements)},"
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yield ""
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yield f".vertex_buffer_offset = {vertex_buffer_offset},"
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yield f".vertex_buffer_size = {vertex_buffer_size},"
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yield ""
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yield f".index_buffer_offset = {index_buffer_offset},"
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yield f".index_buffer_size = {index_buffer_size},"
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yield "}"
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yield "};"
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def render_library_geometries(state, collada):
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next_index = 0
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for library_geometries in collada.library_geometries:
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for geometry in library_geometries.geometries:
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assert geometry.id is not None
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state.geometry__indices[geometry.id] = next_index
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next_index += 1
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yield from render_geometry(state, collada, geometry)
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yield "geometry const * const geometries[] = {"
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for library_geometries in collada.library_geometries:
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for geometry in library_geometries.geometries:
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geometry_name = sanitize_name(state, geometry.id, geometry)
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yield f"&geometry_{geometry_name},"
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yield "};"
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def render_float_tuple(t):
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s = ", ".join((f"{float(f)}f" for f in t))
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return f"{{{s}}}"
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def render_node_transforms(state, collada, node_name, transformation_elements):
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yield f"transform const transforms_{node_name}[] = {{"
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for transform in transformation_elements:
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yield "{"
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if type(transform) is types.Lookat:
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yield ".type = transform_type::LOOKAT,"
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yield ".lookat = {"
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yield f".eye = {render_float_tuple(transform.eye)}",
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yield f".at = {render_float_tuple(transform.at)}",
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yield f".up = {render_float_tuple(transform.up)}",
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yield "},"
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elif type(transform) is types.Matrix:
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yield ".type = transform_type::MATRIX,"
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yield f".matrix = {render_float_tuple(matrix_transpose(transform.matrix))},"
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elif type(transform) is types.Rotate:
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yield ".type = transform_type::ROTATE,"
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yield f".rotate = {render_float_tuple(transform.rotate)},"
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elif type(transform) is types.Scale:
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yield ".type = transform_type::SCALE,"
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yield f".scale = {render_float_tuple(transform.scale)},"
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elif type(transform) is types.Skew:
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yield ".type = transform_type::SKEW,"
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yield f".skew = {render_float_tuple(transform.skew)},"
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elif type(transform) is types.Translate:
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yield ".type = transform_type::TRANSLATE,"
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yield f".translate = {render_float_tuple(transform.translate)},"
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else:
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assert False, type(transform)
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yield "},"
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yield "};"
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def find_material_symbol(geometry, material_symbol):
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assert material_symbol is not None
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mesh = geometry.geometric_element
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assert type(mesh) is types.Mesh
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for i, element in enumerate(mesh.primitive_elements):
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if element.material == material_symbol:
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return i # element index
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assert False, material_symbol
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def shader_to_input_set(channel_to_input_set, shader, op):
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if type(shader) is types.Constant:
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return -1
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shader_op = op(shader)
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if type(shader_op) is types.Color:
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return -1
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if shader_op is None:
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return -1
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assert type(shader_op) is types.Texture
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texture = shader_op
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assert texture.texcoord in channel_to_input_set
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return channel_to_input_set[texture.texcoord]
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def render_node_geometry_instance_materials(state, collada, prefix, node_name, i, geometry, instance_materials):
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yield f"instance_material const {prefix}_instance_materials_{node_name}_{i}[] = {{"
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for instance_material in instance_materials:
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# bind <triangles> with `symbol` to <effect> with `target`
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# symbol is not an XML id
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# symbol is the `.material` attribute of <triangles> in geometry.mesh
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element_index = find_material_symbol(geometry, instance_material.symbol)
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# target is an XML id
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material = collada.lookup(instance_material.target, types.Material)
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material_name = sanitize_name(state, material.id, material)
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channel_to_input_set = {}
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for bind_vertex_input in instance_material.bind_vertex_inputs:
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assert bind_vertex_input.input_semantic == "TEXCOORD", bind_vertex_input
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if bind_vertex_input.semantic in channel_to_input_set:
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assert channel_to_input_set[bind_vertex_input.semantic] == bind_vertex_input.input_set
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else:
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channel_to_input_set[bind_vertex_input.semantic] = bind_vertex_input.input_set
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effect = collada.lookup(material.instance_effect.url, types.Effect)
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profile_common, = effect.profile_common
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shader = profile_common.technique.shader
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emission_input_set = shader_to_input_set(channel_to_input_set, shader, attrgetter("emission"))
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ambient_input_set = shader_to_input_set(channel_to_input_set, shader, attrgetter("ambient"))
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diffuse_input_set = shader_to_input_set(channel_to_input_set, shader, attrgetter("diffuse"))
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specular_input_set = shader_to_input_set(channel_to_input_set, shader, attrgetter("specular"))
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yield "{"
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yield f".element_index = {element_index}, // an index into mesh.triangles"
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yield f".material = &material_{material_name},"
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yield ""
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yield f".emission = {{ .input_set = {emission_input_set} }},"
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yield f".ambient = {{ .input_set = {ambient_input_set} }},"
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yield f".diffuse = {{ .input_set = {diffuse_input_set} }},"
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yield f".specular = {{ .input_set = {specular_input_set} }},"
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yield "},"
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yield "};"
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def get_instance_materials(instance_geometry):
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return instance_geometry.bind_material.technique_common.materials if instance_geometry.bind_material is not None else []
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def render_node_instance_geometries(state, collada, node_name, instance_geometries):
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for i, instance_geometry in enumerate(instance_geometries):
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geometry = collada.lookup(instance_geometry.url, types.Geometry)
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instance_materials = get_instance_materials(instance_geometry)
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yield from render_node_geometry_instance_materials(state, collada, "instance_geometry", node_name, i, geometry, instance_materials)
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yield f"instance_geometry const instance_geometries_{node_name}[] = {{"
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for i, instance_geometry in enumerate(instance_geometries):
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geometry = collada.lookup(instance_geometry.url, types.Geometry)
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geometry_name = sanitize_name(state, geometry.id, geometry)
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instance_materials = get_instance_materials(instance_geometry)
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yield "{"
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yield f".geometry = &geometry_{geometry_name},"
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yield ""
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yield f".instance_materials = instance_geometry_instance_materials_{node_name}_{i},"
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yield f".instance_materials_count = {len(instance_materials)},"
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yield "},"
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yield "};"
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def get_node_name_id(node):
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name = node.id if node.id is not None else f"node-{node.name}"
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assert name is not None, node
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return name
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#def render_node_children(state, collada, node_name, nodes):
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# yield f"node const * const node_children_{node_name}[] = {{"
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# for node in nodes:
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# node_name_id = get_node_name_id(node)
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# node_name = sanitize_name(state, node_name_id, node)
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# yield "&node_{node_name},"
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# yield "};"
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def render_node_channels(state, collada, node, node_name):
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if node.id is None:
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# nodes with no ID can't have channels
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yield f"channel const * const node_channels_{node_name}[] = {{}};"
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return
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target_names = state.node_animation_channels[node.id]
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yield f"channel const * const node_channels_{node_name}[] = {{"
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for target_name in target_names:
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yield f"&node_channel_{target_name},"
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yield "};"
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def render_node_instance_lights(state, collada, node_name, instance_lights):
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yield f"instance_light const instance_lights_{node_name}[] = {{"
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for instance_light in instance_lights:
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light = collada.lookup(instance_light.url, types.Light)
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light_name = sanitize_name(state, light.id, light)
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yield "{"
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yield f".light = &light_{light_name},"
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yield "}"
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yield "};"
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def find_node_by_sid(root_node, sid):
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if sid == root_node.sid:
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return root_node
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for child_node in root_node.nodes:
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node = find_node_by_sid(child_node, sid)
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if node is not None:
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return node
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return None
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def find_node_index(state, node):
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for other_index, other in enumerate(state.linearized_nodes):
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if other is node:
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return other_index
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def render_joint_node_indices(state, collada, skin, node_name, controller_name, skeleton_node):
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joint_input, = find_semantics(skin.joints.inputs, "JOINT")
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joint_source = collada.lookup(joint_input.source, types.SourceCore)
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stride = joint_source.technique_common.accessor.stride
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count = joint_source.technique_common.accessor.count
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array = joint_source.array_element
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assert type(joint_source.array_element) == types.NameArray, array
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assert stride == 1
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assert array.count == count * stride
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yield f"int const joint_node_indices_{node_name}_{controller_name}[] = {{"
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for node_sid in array.names:
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joint_node = find_node_by_sid(skeleton_node, node_sid);
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assert joint_node is not None, (node_sid, skeleton_node.sid_lookup)
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joint_node_index = find_node_index(state, joint_node)
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joint_node_name_id = get_node_name_id(joint_node)
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joint_node_name = sanitize_name(state, joint_node_name_id, joint_node)
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yield f"{joint_node_index}, // {node_sid} {joint_node_name}"
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yield "};"
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def render_node_instance_controller_joint_node_indices(state, collada, node_name, instance_controller):
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controller = collada.lookup(instance_controller.url, types.Controller)
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controller_name = sanitize_name(state, controller.id, controller)
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assert type(controller.control_element) is types.Skin
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skin = controller.control_element
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skeleton_node = collada.lookup(instance_controller.skeleton, types.Node)
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yield from render_joint_node_indices(state, collada, skin, node_name, controller_name, skeleton_node)
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def render_node_instance_controllers(state, collada, node_name, instance_controllers):
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for i, instance_controller in enumerate(instance_controllers):
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yield from render_node_instance_controller_joint_node_indices(state, collada, node_name, instance_controller)
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controller = collada.lookup(instance_controller.url, types.Controller)
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assert type(controller.control_element) is types.Skin
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geometry = collada.lookup(controller.control_element.source, types.Geometry)
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instance_materials = get_instance_materials(instance_controller)
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yield from render_node_geometry_instance_materials(state, collada, "instance_controller", node_name, i, geometry, instance_materials)
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yield f"instance_controller const instance_controllers_{node_name}[] = {{"
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for i, instance_controller in enumerate(instance_controllers):
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controller = collada.lookup(instance_controller.url, types.Controller)
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controller_name = sanitize_name(state, controller.id, controller)
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instance_materials = get_instance_materials(instance_controller)
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yield "{"
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yield f".controller = &controller_{controller_name},"
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yield ""
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yield f".joint_node_indices = joint_node_indices_{node_name}_{controller_name},"
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yield f".joint_count = (sizeof (joint_node_indices_{node_name}_{controller_name})) / (sizeof (int)),"
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yield ""
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yield f".instance_materials = instance_controller_instance_materials_{node_name}_{i},"
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yield f".instance_materials_count = {len(instance_materials)},"
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yield "},"
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yield "};"
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def render_node(state, collada, node, node_index):
|
|
node_name_id = get_node_name_id(node)
|
|
node_name = sanitize_name(state, node_name_id, node)
|
|
#yield from render_node_children(state, collada, node_name, node.nodes)
|
|
yield from render_node_transforms(state, collada, node_name, node.transformation_elements)
|
|
yield from render_node_instance_geometries(state, collada, node_name, node.instance_geometries)
|
|
yield from render_node_instance_controllers(state, collada, node_name, node.instance_controllers)
|
|
yield from render_node_instance_lights(state, collada, node_name, node.instance_lights)
|
|
yield from render_node_channels(state, collada, node, node_name)
|
|
|
|
type = {
|
|
types.NodeType.JOINT: "JOINT",
|
|
types.NodeType.NODE: "NODE",
|
|
}[node.type]
|
|
|
|
yield f"node const node_{node_name} = {{"
|
|
yield f".parent_index = {state.node_parents[node_index]},"
|
|
yield ""
|
|
yield f".type = node_type::{type},"
|
|
yield ""
|
|
yield f".transforms = transforms_{node_name},"
|
|
yield f".transforms_count = {len(node.transformation_elements)},"
|
|
yield ""
|
|
yield f".instance_geometries = instance_geometries_{node_name},"
|
|
yield f".instance_geometries_count = {len(node.instance_geometries)},"
|
|
yield ""
|
|
yield f".instance_controllers = instance_controllers_{node_name},"
|
|
yield f".instance_controllers_count = {len(node.instance_controllers)},"
|
|
yield ""
|
|
yield f".instance_lights = instance_lights_{node_name},"
|
|
yield f".instance_lights_count = {len(node.instance_lights)},"
|
|
yield ""
|
|
yield f".channels = node_channels_{node_name},"
|
|
yield f".channels_count = {len(state.node_animation_channels[node.id])},"
|
|
#yield ""
|
|
#yield f".nodes = node_children_{node_name},"
|
|
#yield f".nodes_count = {len(node.nodes)},"
|
|
yield "};"
|
|
|
|
def traverse_node(state, parent_node_index, node):
|
|
assert parent_node_index < len(state.linearized_nodes)
|
|
node_index = len(state.linearized_nodes)
|
|
state.linearized_nodes.append(node)
|
|
assert node_index not in state.node_parents
|
|
state.node_parents[node_index] = parent_node_index
|
|
for child_node in node.nodes:
|
|
traverse_node(state, node_index, child_node)
|
|
|
|
def linearize_nodes(state, collada):
|
|
for library_visual_scenes in collada.library_visual_scenes:
|
|
for visual_scene in library_visual_scenes.visual_scenes:
|
|
for node in visual_scene.nodes:
|
|
traverse_node(state, -1, node)
|
|
|
|
def render_library_visual_scenes(state, collada):
|
|
linearize_nodes(state, collada)
|
|
|
|
for node_index, node in enumerate(state.linearized_nodes):
|
|
yield from render_node(state, collada, node, node_index)
|
|
|
|
yield "node const * const nodes[] = {"
|
|
for node_index, node in enumerate(state.linearized_nodes):
|
|
node_name_id = get_node_name_id(node)
|
|
node_name = sanitize_name(state, node_name_id, node)
|
|
yield f"&node_{node_name},"
|
|
yield "};"
|
|
|
|
def render_header(namespace):
|
|
yield '#include "collada_types.hpp"'
|
|
yield ''
|
|
yield f'namespace {namespace} {{'
|
|
yield ''
|
|
yield 'using namespace collada;'
|
|
|
|
def render_opt_color(field_name, color):
|
|
yield f".{field_name} = {render_float_tuple(color.value)},"
|
|
|
|
def render_opt_texture(state, profile_common, field_name, texture):
|
|
sampler_sid = texture.texture
|
|
sampler = profile_common.sid_lookup[sampler_sid]
|
|
assert type(sampler) is types.Newparam, sampler
|
|
assert type(sampler.parameter_type) is types.Sampler2D, sampler
|
|
|
|
surface_sid = sampler.parameter_type.source.sid
|
|
surface = profile_common.sid_lookup[surface_sid]
|
|
assert type(surface) is types.Newparam, surface
|
|
assert type(surface.parameter_type) is types.Surface, surface
|
|
assert surface.parameter_type.type is types.FxSurfaceType._2D
|
|
image_id = surface.parameter_type.init_from.uri
|
|
image_index = state.image_indices[image_id]
|
|
|
|
yield f".{field_name} = {{ .image_index = {image_index} }}, // {image_id}"
|
|
|
|
def render_opt_color_or_texture(state, profile_common, field_name, color_or_texture):
|
|
if color_or_texture is None:
|
|
color_or_texture = types.Color(value=(0.0, 0.0, 0.0, 0.0))
|
|
opt_type = {
|
|
types.Color: "COLOR",
|
|
types.Texture: "TEXTURE",
|
|
}[type(color_or_texture)]
|
|
yield f".{field_name} = {{"
|
|
yield f".type = color_or_texture_type::{opt_type},"
|
|
if type(color_or_texture) is types.Color:
|
|
yield from render_opt_color("color", color_or_texture)
|
|
elif type(color_or_texture) is types.Texture:
|
|
yield from render_opt_texture(state, profile_common, "texture", color_or_texture)
|
|
else:
|
|
assert False, color_or_texture
|
|
yield "},"
|
|
|
|
def render_opt_float(field_name, f):
|
|
if f is None:
|
|
f = types.Float(value=0.0)
|
|
yield f".{field_name} = {float(f.value)}f,"
|
|
|
|
def render_effect(state, collada, effect):
|
|
profile_common, = effect.profile_common
|
|
|
|
shader = profile_common.technique.shader
|
|
effect_name = sanitize_name(state, effect.id, effect)
|
|
yield f"effect const effect_{effect_name} = {{"
|
|
|
|
if type(shader) is types.Blinn:
|
|
yield ".type = effect_type::BLINN,"
|
|
yield ".blinn = {"
|
|
yield from render_opt_color_or_texture(state, profile_common, "emission", shader.emission)
|
|
yield from render_opt_color_or_texture(state, profile_common, "ambient", shader.ambient)
|
|
yield from render_opt_color_or_texture(state, profile_common, "diffuse", shader.diffuse)
|
|
yield from render_opt_color_or_texture(state, profile_common, "specular", shader.specular)
|
|
yield from render_opt_float("shininess", shader.shininess)
|
|
yield from render_opt_color_or_texture(state, profile_common, "reflective", shader.reflective)
|
|
yield from render_opt_float("reflectivity", shader.reflectivity)
|
|
yield from render_opt_color_or_texture(state, profile_common, "transparent", shader.transparent)
|
|
yield from render_opt_float("transparency", shader.transparency)
|
|
yield from render_opt_float("index_of_refraction", shader.index_of_refraction)
|
|
yield "}"
|
|
elif type(shader) is types.Lambert:
|
|
yield ".type = effect_type::LAMBERT,"
|
|
yield ".lambert = {"
|
|
yield from render_opt_color_or_texture(state, profile_common, "emission", shader.emission)
|
|
yield from render_opt_color_or_texture(state, profile_common, "ambient", shader.ambient)
|
|
yield from render_opt_color_or_texture(state, profile_common, "diffuse", shader.diffuse)
|
|
yield from render_opt_color_or_texture(state, profile_common, "reflective", shader.reflective)
|
|
yield from render_opt_float("reflectivity", shader.reflectivity)
|
|
yield from render_opt_color_or_texture(state, profile_common, "transparent", shader.transparent)
|
|
yield from render_opt_float("transparency", shader.transparency)
|
|
yield from render_opt_float("index_of_refraction", shader.index_of_refraction)
|
|
yield "}"
|
|
elif type(shader) is types.Phong:
|
|
yield ".type = effect_type::PHONG,"
|
|
yield ".phong = {"
|
|
yield from render_opt_color_or_texture(state, profile_common, "emission", shader.emission)
|
|
yield from render_opt_color_or_texture(state, profile_common, "ambient", shader.ambient)
|
|
yield from render_opt_color_or_texture(state, profile_common, "diffuse", shader.diffuse)
|
|
yield from render_opt_color_or_texture(state, profile_common, "specular", shader.specular)
|
|
yield from render_opt_float("shininess", shader.shininess)
|
|
yield from render_opt_color_or_texture(state, profile_common, "reflective", shader.reflective)
|
|
yield from render_opt_float("reflectivity", shader.reflectivity)
|
|
yield from render_opt_color_or_texture(state, profile_common, "transparent", shader.transparent)
|
|
yield from render_opt_float("transparency", shader.transparency)
|
|
yield from render_opt_float("index_of_refraction", shader.index_of_refraction)
|
|
yield "}"
|
|
elif type(shader) is types.Constant:
|
|
yield ".type = effect_type::CONSTANT,"
|
|
yield ".constant = {"
|
|
yield from render_opt_color("color", shader.color)
|
|
yield from render_opt_color_or_texture(state, profile_common, "reflective", shader.reflective)
|
|
yield from render_opt_float("reflectivity", shader.reflectivity)
|
|
yield from render_opt_color_or_texture(state, profile_common, "transparent", shader.transparent)
|
|
yield from render_opt_float("transparency", shader.transparency)
|
|
yield from render_opt_float("index_of_refraction", shader.index_of_refraction)
|
|
yield "}"
|
|
else:
|
|
assert False, type(shader)
|
|
|
|
yield "};"
|
|
|
|
def render_library_effects(state, collada):
|
|
for library_effects in collada.library_effects:
|
|
for effect in library_effects.effects:
|
|
yield from render_effect(state, collada, effect)
|
|
|
|
def render_library_materials(state, collada):
|
|
for library_materials in collada.library_materials:
|
|
for material in library_materials.materials:
|
|
effect = collada.lookup(material.instance_effect.url, types.Effect)
|
|
material_name = sanitize_name(state, material.id, material)
|
|
effect_name = sanitize_name(state, effect.id, effect)
|
|
yield f"material const material_{material_name} = {{"
|
|
yield f".effect = &effect_{effect_name},"
|
|
yield "};"
|
|
|
|
def render_input_elements_list(state):
|
|
yield "inputs const inputs_list[] = {"
|
|
for key_name, (index, key) in state.emitted_input_elements_arrays.items():
|
|
yield "{"
|
|
yield f".elements = input_elements_{key_name},"
|
|
yield f".elements_count = {len(key)},"
|
|
yield "},"
|
|
yield "};"
|
|
|
|
def render_descriptor(namespace):
|
|
yield f"extern collada::descriptor const descriptor;"
|
|
yield ""
|
|
yield "collada::descriptor const descriptor = {"
|
|
yield ".nodes = nodes,"
|
|
yield ".nodes_count = (sizeof (nodes)) / (sizeof (nodes[0])),"
|
|
yield ""
|
|
yield ".inputs_list = inputs_list,"
|
|
yield ".inputs_list_count = (sizeof (inputs_list)) / (sizeof (inputs_list[0])),"
|
|
yield ""
|
|
yield ".images = images,"
|
|
yield ".images_count = (sizeof (images)) / (sizeof (images[0])),"
|
|
yield "};"
|
|
|
|
def render_end_of_namespace():
|
|
yield "}"
|
|
|
|
def render_animation_children(state, collada, animation_name, animations):
|
|
yield f"node const * const animation_children_{animation_name} = {{"
|
|
for animation in animations:
|
|
animation_name = sanitize_name(state, animation.id, animation)
|
|
yield "&animation_{animation_name},"
|
|
yield "};"
|
|
|
|
def render_array(state, collada, accessor, array):
|
|
array_name = sanitize_name(state, array.id, array)
|
|
# render the array
|
|
if type(array) is types.NameArray:
|
|
assert accessor.stride == 1
|
|
assert accessor.params[0].name == "INTERPOLATION"
|
|
assert len(array.names) == accessor.count
|
|
yield f"enum interpolation const array_{array_name}[] = {{"
|
|
for name in array.names:
|
|
assert name in {"BEZIER", "LINEAR"}, name
|
|
yield f"interpolation::{name},"
|
|
yield "};"
|
|
elif type(array) is types.FloatArray:
|
|
yield f"float const array_{array_name}[] = {{"
|
|
it = iter(array.floats)
|
|
for i in range(accessor.count):
|
|
vector = ", ".join(f"{float(f)}f" for f in islice(it, accessor.stride))
|
|
yield f"{vector},"
|
|
yield "};"
|
|
else:
|
|
assert False, type(array)
|
|
|
|
def render_source(state, collada, field_name, source):
|
|
array_name = sanitize_name(state, source.array_element.id, source.array_element)
|
|
c_type = "interpolation" if type(source.array_element) is types.NameArray else "float"
|
|
source_name = sanitize_name(state, source.id, source)
|
|
#yield f"source const source_{source_name} = {{"
|
|
yield f"// {source_name}"
|
|
yield f".{field_name} = {{"
|
|
yield f".{c_type}_array = array_{array_name},"
|
|
yield f".count = {source.technique_common.accessor.count},"
|
|
yield f".stride = {source.technique_common.accessor.stride},"
|
|
yield "},"
|
|
|
|
def render_sampler(state, collada, sampler):
|
|
order = dict((s, i) for i, s in
|
|
enumerate(["INPUT", "OUTPUT", "IN_TANGENT", "OUT_TANGENT", "INTERPOLATION"]))
|
|
inputs = sorted((input for input in sampler.inputs if input.semantic in order),
|
|
key=lambda input: order[input.semantic])
|
|
inputs_semantics = [input.semantic for input in inputs]
|
|
assert len(inputs_semantics) == len(set(inputs_semantics))
|
|
assert "INPUT" in inputs_semantics
|
|
assert "OUTPUT" in inputs_semantics
|
|
assert "INTERPOLATION" in inputs_semantics
|
|
|
|
# sampler validation
|
|
counts = set()
|
|
for input in inputs:
|
|
source = collada.lookup(input.source, types.SourceCore)
|
|
if input.semantic == "INTERPOLATION":
|
|
nonlinear_interpolation_params = [e for e in source.array_element.names if e != "LINEAR"]
|
|
if nonlinear_interpolation_params:
|
|
assert "IN_TANGENT" in inputs_semantics
|
|
assert "OUT_TANGENT" in inputs_semantics
|
|
counts.add(source.technique_common.accessor.count)
|
|
assert len(counts) == 1
|
|
|
|
# render the source arrays first
|
|
for input in inputs:
|
|
assert type(input) is types.InputUnshared
|
|
source = collada.lookup(input.source, types.SourceCore)
|
|
|
|
yield from render_array(state, collada, source.technique_common.accessor, source.array_element)
|
|
|
|
# render the sampler
|
|
sampler_name = sanitize_name(state, sampler.id, sampler)
|
|
yield f"sampler const sampler_{sampler_name} = {{"
|
|
for input in inputs:
|
|
source = collada.lookup(input.source, types.SourceCore)
|
|
field_name = input.semantic.lower()
|
|
yield from render_source(state, collada, field_name, source)
|
|
yield "};"
|
|
|
|
target_attributes = {
|
|
"A", "ANGLE", "B", "G", "P", "Q", "R", "S", "T", "TIME", "U", "V", "W", "X", "Y", "Z", "ALL"
|
|
}
|
|
|
|
def find_transform_index_in_node(node, transform):
|
|
for i, node_transform in enumerate(node.transformation_elements):
|
|
if node_transform is transform:
|
|
return i
|
|
assert False, (node, transform)
|
|
|
|
def transform_sid_lookup(node, sid):
|
|
transform_types = {
|
|
types.Lookat, types.Matrix, types.Rotate,
|
|
types.Scale, types.Skew, types.Translate
|
|
}
|
|
transform = node.sid_lookup[sid]
|
|
assert type(transform) in transform_types, transform
|
|
return transform
|
|
|
|
def render_channel(state, collada, channel):
|
|
sampler = collada.lookup(channel.source, types.Sampler)
|
|
sampler_name = sanitize_name(state, sampler.id, sampler)
|
|
|
|
assert '/' in channel.target, channel.target
|
|
assert "(" not in channel.target, channel.target
|
|
|
|
node_id, rest = channel.target.split("/")
|
|
if '.' in rest:
|
|
node_transform_sid, target_attribute = rest.split(".")
|
|
else:
|
|
node_transform_sid = rest
|
|
target_attribute = 'ALL'
|
|
assert target_attribute in target_attributes
|
|
|
|
node = collada.lookup(f"#{node_id}", types.Node)
|
|
node_name_id = get_node_name_id(node)
|
|
node_name = sanitize_name(state, node_name_id, node)
|
|
|
|
transform = transform_sid_lookup(node, node_transform_sid)
|
|
transform_index = find_transform_index_in_node(node, transform)
|
|
|
|
target_name = sanitize_name(state, channel.target, channel, allow_slash=True)
|
|
assert target_name not in state.node_animation_channels[node.id]
|
|
state.node_animation_channels[node.id].add(target_name)
|
|
|
|
yield f"channel const node_channel_{target_name} = {{"
|
|
yield f".source_sampler = &sampler_{sampler_name},"
|
|
yield f".target_transform_index = {transform_index},"
|
|
yield f".target_attribute = target_attribute::{target_attribute},"
|
|
yield "};"
|
|
|
|
def render_animation(state, collada, animation_name, animation):
|
|
# render children first
|
|
for i, child_animation in enumerate(animation.animations):
|
|
child_animation_name = f"{animation_name}_{i}"
|
|
yield from render_animation(state, collada, child_animation_name, child_animation)
|
|
|
|
# samplers (includes sources)
|
|
for sampler in animation.samplers:
|
|
yield from render_sampler(state, collada, sampler)
|
|
|
|
for channel in animation.channels:
|
|
yield from render_channel(state, collada, channel)
|
|
|
|
# all animations channels are referenced from the node (inverse
|
|
# the relationship in collada)
|
|
#
|
|
# I haven't considered how nested or layered animations are
|
|
# affected by this inversion.
|
|
|
|
#yield f"animation const animation_{animation_name} = {{"
|
|
#yield f".animations = animation_children_{animation_name},"
|
|
#yield f".animations_count = {len(animation.animations)},"
|
|
#yield ""
|
|
#yield f".channels = animation_channels_{animation_name}"
|
|
#yield f".channels_count = {len(animation.channels)}"
|
|
#yield "};"
|
|
|
|
def render_library_animations(state, collada):
|
|
animation_ix = 0
|
|
for library_animations in collada.library_animations:
|
|
for animation in library_animations.animations:
|
|
animation_name = f"{animation_ix}"
|
|
yield from render_animation(state, collada, animation_name, animation)
|
|
animation_ix += 1
|
|
|
|
def render_light_type(technique_common: types.TechniqueCommon_Light):
|
|
return {
|
|
types.Ambient: "AMBIENT",
|
|
types.Directional: "DIRECTIONAL",
|
|
types.Point: "POINT",
|
|
types.Spot: "SPOT",
|
|
}[type(technique_common.light)]
|
|
|
|
def render_light(state, collada, light):
|
|
technique_common = light.technique_common
|
|
light_name = sanitize_name(state, light.id, light)
|
|
color = ", ".join(f"{float(f)}f" for f in technique_common.light.color)
|
|
light_type = render_light_type(technique_common)
|
|
yield f"light const light_{light_name} = {{"
|
|
yield f".type = light_type::{light_type},"
|
|
yield f".color = {{ {color} }},"
|
|
yield "};"
|
|
|
|
def render_library_lights(state, collada):
|
|
for library_lights in collada.library_lights:
|
|
for light in library_lights.lights:
|
|
yield from render_light(state, collada, light)
|
|
|
|
def image_resource_name(state, uri):
|
|
uri = unquote(uri)
|
|
prefix = "file:///"
|
|
assert uri.startswith(prefix), uri
|
|
path = uri[len(prefix):]
|
|
assert os.path.exists(path), path
|
|
image_extensions = {".png", ".jpg", ".bmp", ".jpeg", ".tiff"}
|
|
assert os.path.splitext(path)[1].lower() in image_extensions, path
|
|
|
|
filename = os.path.split(path)[1]
|
|
assert filename not in state.image_paths, filename
|
|
state.image_paths[filename] = path
|
|
return sanitize_resource_name(state, filename, path)
|
|
|
|
def render_image(state, collada, image, image_index):
|
|
assert image.id is not None
|
|
assert image.id not in state.image_indices
|
|
state.image_indices[image.id] = image_index
|
|
|
|
assert type(image.image_source) is types.InitFrom
|
|
resource_name = image_resource_name(state, image.image_source.uri)
|
|
image_name = sanitize_name(state, image.id, image)
|
|
|
|
yield f"// {image.id}"
|
|
yield f"image const image_{image_name} = {{"
|
|
yield f'.resource_name = L"{resource_name}",'
|
|
yield "};"
|
|
|
|
def render_library_images(state, collada):
|
|
image_index = 0
|
|
for library_images in collada.library_images:
|
|
for image in library_images.images:
|
|
yield from render_image(state, collada, image, image_index)
|
|
image_index += 1
|
|
|
|
yield "image const * const images[] = {"
|
|
for library_images in collada.library_images:
|
|
for image in library_images.images:
|
|
image_name = sanitize_name(state, image.id, image)
|
|
yield f"&image_{image_name},"
|
|
yield "};"
|
|
|
|
def render_matrix(fs):
|
|
fsi = iter(fs)
|
|
for i in range(4):
|
|
s = ", ".join(f"{f}f" for f in islice(fsi, 4))
|
|
yield f"{s},"
|
|
|
|
def render_inverse_bind_matrices(collada, skin, controller_name):
|
|
inverse_bind_matrix_input, = find_semantics(skin.joints.inputs, "INV_BIND_MATRIX")
|
|
inverse_bind_matrix_source = collada.lookup(inverse_bind_matrix_input.source, types.SourceCore)
|
|
stride = inverse_bind_matrix_source.technique_common.accessor.stride
|
|
count = inverse_bind_matrix_source.technique_common.accessor.count
|
|
array = inverse_bind_matrix_source.array_element
|
|
assert type(inverse_bind_matrix_source.array_element) == types.FloatArray
|
|
assert stride == 16
|
|
assert array.count == count * stride
|
|
|
|
inverse_bind_matrices = []
|
|
# emitted in joint order
|
|
yield f"matrix const inverse_bind_matrices_{controller_name}[] = {{"
|
|
for i in range(count):
|
|
yield "{"
|
|
offset = stride * i
|
|
matrix = matrix_transpose(array.floats[offset:offset+stride])
|
|
yield from render_matrix(matrix)
|
|
yield "},"
|
|
yield "};"
|
|
|
|
def render_controller(state, collada, controller):
|
|
controller_name = sanitize_name(state, controller.id, controller)
|
|
|
|
assert type(controller.control_element) == types.Skin
|
|
skin = controller.control_element
|
|
geometry = collada.lookup(skin.source, types.Geometry)
|
|
vertex_index_table = state.geometry__vertex_index_tables[geometry.id]
|
|
# this is a special index buffer that contains mixed floats/ints,
|
|
# and needs to be packed accordingly
|
|
|
|
# fixme: skin_vertex_buffer should multiply vertices by the bind shape matrix
|
|
vertex_buffer = buffer.skin_vertex_buffer(collada, skin, vertex_index_table)
|
|
# skin.vertex_weights and skin.source are entirely dealt with
|
|
FIXME emit vertex buffer
|
|
FIXME emit vertex buffer offset in controller struct
|
|
|
|
yield from render_inverse_bind_matrices(collada, skin, controller_name)
|
|
|
|
yield f"controller const controller_{controller_name} = {{"
|
|
yield ".skin = {"
|
|
yield f".inverse_bind_matrices = inverse_bind_matrices_{controller_name},"
|
|
yield "}"
|
|
yield "};"
|
|
|
|
def render_library_controllers(state, collada):
|
|
for library_controller in collada.library_controllers:
|
|
for controller in library_controller.controllers:
|
|
yield from render_controller(state, collada, controller)
|
|
|
|
def render_all(collada, namespace):
|
|
state = State()
|
|
render, out = renderer()
|
|
render(render_header(namespace))
|
|
render(render_library_lights(state, collada))
|
|
render(render_library_animations(state, collada))
|
|
render(render_library_images(state, collada))
|
|
render(render_library_effects(state, collada))
|
|
render(render_library_materials(state, collada))
|
|
render(render_library_geometries(state, collada))
|
|
render(render_library_controllers(state, collada))
|
|
|
|
# root elements
|
|
render(render_library_visual_scenes(state, collada))
|
|
render(render_input_elements_list(state))
|
|
render(render_descriptor(namespace))
|
|
render(render_end_of_namespace())
|
|
return state, out
|
|
|
|
def render_hpp(namespace):
|
|
yield f"namespace {namespace} {{"
|
|
yield "extern collada::descriptor const descriptor;"
|
|
yield "}"
|
|
|
|
def render_all_hpp(namespace):
|
|
render, out = renderer()
|
|
render(render_hpp(namespace))
|
|
return out
|
|
|
|
if __name__ == "__main__":
|
|
import sys
|
|
collada = parse.parse_collada_file(sys.argv[1])
|
|
|
|
state, out = render_all(collada, "test")
|
|
print(out.getvalue())
|