Exemple #1
0
    def __init__(self, program, attribute_meta):
        self.program = program
        self.attribute_meta = attribute_meta
        self.allocator = allocation.Allocator(self._initial_count)
        self.vao = vertexarray.VertexArray()

        self.attributes = []
        self.buffer_attributes = []  # list of (buffer, attributes)

        for name, meta in attribute_meta.items():
            location = meta['location']
            count = meta['count']
            gl_type = _gl_types[meta['format'][0]]
            normalize = 'n' in meta['format']
            attribute = vertexattribute.VertexAttribute(
                name, location, count, gl_type, normalize)
            self.attributes.append(attribute)
            # Create buffer:
            attribute.buffer = MappableBufferObject(
                attribute.stride * self.allocator.capacity, GL_ARRAY_BUFFER)
            attribute.buffer.element_size = attribute.stride
            attribute.buffer.attributes = (attribute, )
            self.buffer_attributes.append((attribute.buffer, (attribute, )))

        # Create named attributes for each attribute
        self.attribute_names = {}
        for attribute in self.attributes:
            self.attribute_names[attribute.name] = attribute
Exemple #2
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    def __init__(self, attribute_usages, index_gl_type=GL_UNSIGNED_INT):
        super(IndexedVertexDomain, self).__init__(attribute_usages)

        self.index_allocator = allocation.Allocator(self._initial_index_count)

        self.index_gl_type = index_gl_type
        self.index_c_type = vertexattribute._c_types[index_gl_type]
        self.index_element_size = ctypes.sizeof(self.index_c_type)
        self.index_buffer = vertexbuffer.create_buffer(
            self.index_allocator.capacity * self.index_element_size,
            target=GL_ELEMENT_ARRAY_BUFFER)
Exemple #3
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    def __init__(self, program, attribute_meta, index_gl_type=GL_UNSIGNED_INT):
        super(IndexedVertexDomain, self).__init__(program, attribute_meta)

        self.index_allocator = allocation.Allocator(self._initial_index_count)

        self.index_gl_type = index_gl_type
        self.index_c_type = vertexattribute._c_types[index_gl_type]
        self.index_element_size = ctypes.sizeof(self.index_c_type)
        self.index_buffer = BufferObject(
            self.index_allocator.capacity * self.index_element_size,
            GL_ELEMENT_ARRAY_BUFFER)
Exemple #4
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    def __init__(self, attribute_usages):
        self.allocator = allocation.Allocator(self._initial_count)

        static_attributes = []
        attributes = []
        self.buffer_attributes = []  # list of (buffer, attributes)
        for attribute, usage, vbo in attribute_usages:
            if usage == GL_STATIC_DRAW:
                # Group attributes for interleaved buffer
                static_attributes.append(attribute)
                attributes.append(attribute)
            else:
                # Create non-interleaved buffer
                attributes.append(attribute)
                attribute.buffer = vertexbuffer.create_mappable_buffer(
                    attribute.stride * self.allocator.capacity,
                    usage=usage,
                    vbo=vbo)
                attribute.buffer.element_size = attribute.stride
                attribute.buffer.attributes = (attribute, )
                self.buffer_attributes.append(
                    (attribute.buffer, (attribute, )))

        # Create buffer for interleaved data
        if static_attributes:
            vertexattribute.interleave_attributes(static_attributes)
            stride = static_attributes[0].stride
            buffer = vertexbuffer.create_mappable_buffer(
                stride * self.allocator.capacity, usage=GL_STATIC_DRAW)
            buffer.element_size = stride
            self.buffer_attributes.append((buffer, static_attributes))

            for attribute in static_attributes:
                attribute.buffer = buffer

        # Create named attributes for each attribute
        self.attributes = attributes
        self.attribute_names = {}
        for attribute in attributes:
            if isinstance(attribute, vertexattribute.GenericAttribute):
                index = attribute.index
                if 'generic' not in self.attributes:
                    self.attribute_names['generic'] = {}
                assert index not in self.attribute_names['generic'], \
                    'More than one generic attribute with index %d' % index
                self.attribute_names['generic'][index] = attribute
            else:
                name = attribute.plural
                assert name not in self.attributes, \
                    'More than one "%s" attribute given' % name
                self.attribute_names[name] = attribute
Exemple #5
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    def __init__(self, attribute_usages):
        self.allocator = allocation.Allocator(self._initial_count)

        static_attributes = []
        attributes = []
        self.buffer_attributes = []  # list of (buffer, attributes)
        for attribute, usage in attribute_usages:

            if usage == GL_STATIC_DRAW:
                # Group attributes for interleaved buffer
                static_attributes.append(attribute)
                attributes.append(attribute)
            else:
                # Create non-interleaved buffer
                attributes.append(attribute)
                attribute.buffer = vertexbuffer.create_buffer(
                    attribute.stride * self.allocator.capacity, usage=usage)
                attribute.buffer.element_size = attribute.stride
                attribute.buffer.attributes = (attribute, )
                self.buffer_attributes.append(
                    (attribute.buffer, (attribute, )))

        # Create buffer for interleaved data
        if static_attributes:
            vertexattribute.interleave_attributes(static_attributes)
            stride = static_attributes[0].stride
            buffer = vertexbuffer.create_buffer(stride *
                                                self.allocator.capacity,
                                                usage=GL_STATIC_DRAW)
            buffer.element_size = stride
            self.buffer_attributes.append((buffer, static_attributes))

            attributes.extend(static_attributes)
            for attribute in static_attributes:
                attribute.buffer = buffer

        # Create named attributes for each attribute
        self.attributes = attributes
        self.attribute_names = {}
        for attribute in attributes:
            name = attribute.name
            assert name not in self.attributes, 'More than one "%s" attribute given' % name
            self.attribute_names[name] = attribute
Exemple #6
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    def __init__(self, attribute_usages):
        self.allocator = allocation.Allocator(self._initial_count)

        # If there are any MultiTexCoord attributes, then a TexCoord attribute
        # must be converted.
        have_multi_texcoord = False
        for attribute, _, _ in attribute_usages:
            if isinstance(attribute, vertexattribute.MultiTexCoordAttribute):
                have_multi_texcoord = True
                break

        static_attributes = []
        attributes = []
        self.buffer_attributes = []  # list of (buffer, attributes)
        for attribute, usage, vbo in attribute_usages:
            if have_multi_texcoord and isinstance(
                    attribute, vertexattribute.TexCoordAttribute):
                attribute.convert_to_multi_tex_coord_attribute()

            if usage == GL_STATIC_DRAW:
                # Group attributes for interleaved buffer
                static_attributes.append(attribute)
                attributes.append(attribute)
            else:
                # Create non-interleaved buffer
                attributes.append(attribute)
                attribute.buffer = vertexbuffer.create_mappable_buffer(
                    attribute.stride * self.allocator.capacity,
                    usage=usage,
                    vbo=vbo)
                attribute.buffer.element_size = attribute.stride
                attribute.buffer.attributes = (attribute, )
                self.buffer_attributes.append(
                    (attribute.buffer, (attribute, )))

        # Create buffer for interleaved data
        if static_attributes:
            vertexattribute.interleave_attributes(static_attributes)
            stride = static_attributes[0].stride
            buffer = vertexbuffer.create_mappable_buffer(
                stride * self.allocator.capacity, usage=GL_STATIC_DRAW)
            buffer.element_size = stride
            self.buffer_attributes.append((buffer, static_attributes))

            attributes.extend(static_attributes)
            for attribute in static_attributes:
                attribute.buffer = buffer

        # Create named attributes for each attribute
        self.attributes = attributes
        self.attribute_names = {}
        for attribute in attributes:
            if isinstance(attribute, vertexattribute.GenericAttribute):
                index = attribute.index
                # TODO create a name and use it (e.g. 'generic3')
                # XXX this won't migrate; not documented.
                if 'generic' not in self.attribute_names:
                    self.attribute_names['generic'] = {}
                assert index not in self.attribute_names['generic'], \
                    'More than one generic attribute with index %d' % index
                self.attribute_names['generic'][index] = attribute
            elif isinstance(attribute, vertexattribute.MultiTexCoordAttribute):
                # XXX this won't migrate; not documented.
                texture = attribute.texture
                if 'multi_tex_coords' not in self.attribute_names:
                    self.attribute_names['multi_tex_coords'] = []
                assert texture not in self.attribute_names['multi_tex_coords'],\
                    'More than one multi_tex_coord attribute for texture %d' % texture
                self.attribute_names['multi_tex_coords'].insert(
                    texture, attribute)
            else:
                name = attribute.plural
                assert name not in self.attributes, 'More than one "%s" attribute given' % name
                self.attribute_names[name] = attribute
 def __init__(self, capacity):
     self.allocator = allocation.Allocator(capacity)
     self.regions = []