60 lines
1.7 KiB
C++
60 lines
1.7 KiB
C++
/* SPDX-FileCopyrightText: 2005 Blender Authors
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
|
|
/** \file
|
|
* \ingroup gpu
|
|
*/
|
|
|
|
#include "BLI_array_utils.hh"
|
|
|
|
#include "BKE_attribute_math.hh"
|
|
|
|
#include "GPU_vertex_buffer.hh"
|
|
|
|
#include "attribute_convert.hh"
|
|
|
|
namespace blender::draw {
|
|
|
|
GPUVertFormat init_format_for_attribute(const eCustomDataType data_type, const StringRef vbo_name)
|
|
{
|
|
GPUVertFormat format{};
|
|
bke::attribute_math::convert_to_static_type(data_type, [&](auto dummy) {
|
|
using T = decltype(dummy);
|
|
using Converter = AttributeConverter<T>;
|
|
if constexpr (!std::is_void_v<typename Converter::VBOType>) {
|
|
GPU_vertformat_attr_add(&format,
|
|
vbo_name,
|
|
Converter::gpu_component_type,
|
|
Converter::gpu_component_len,
|
|
Converter::gpu_fetch_mode);
|
|
}
|
|
});
|
|
return format;
|
|
}
|
|
|
|
void vertbuf_data_extract_direct(const GSpan attribute, gpu::VertBuf &vbo)
|
|
{
|
|
bke::attribute_math::convert_to_static_type(attribute.type(), [&](auto dummy) {
|
|
using T = decltype(dummy);
|
|
using Converter = AttributeConverter<T>;
|
|
using VBOType = typename Converter::VBOType;
|
|
if constexpr (!std::is_void_v<VBOType>) {
|
|
const Span<T> src = attribute.typed<T>();
|
|
MutableSpan<VBOType> data = vbo.data<VBOType>();
|
|
if constexpr (std::is_same_v<T, VBOType>) {
|
|
array_utils::copy(src, data);
|
|
}
|
|
else {
|
|
threading::parallel_for(src.index_range(), 8192, [&](const IndexRange range) {
|
|
for (const int i : range) {
|
|
data[i] = Converter::convert(src[i]);
|
|
}
|
|
});
|
|
}
|
|
}
|
|
});
|
|
}
|
|
|
|
} // namespace blender::draw
|