c1bc70b711
A lot of files were missing copyright field in the header and
the Blender Foundation contributed to them in a sense of bug
fixing and general maintenance.
This change makes it explicit that those files are at least
partially copyrighted by the Blender Foundation.
Note that this does not make it so the Blender Foundation is
the only holder of the copyright in those files, and developers
who do not have a signed contract with the foundation still
hold the copyright as well.
Another aspect of this change is using SPDX format for the
header. We already used it for the license specification,
and now we state it for the copyright as well, following the
FAQ:
https://reuse.software/faq/
90 lines
2.3 KiB
C++
90 lines
2.3 KiB
C++
/* SPDX-FileCopyrightText: 2022 Blender Foundation.
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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/** \file
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* \ingroup imbuf
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*/
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#pragma once
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#include "DNA_image_types.h"
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#include "BLI_math.h"
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#include "BLI_math_vector_types.hh"
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#include "IMB_imbuf_types.h"
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namespace blender::bke::image {
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/** Type to use for UDIM tile numbers (1001). */
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using TileNumber = int32_t;
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struct ImageTileWrapper {
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ImageTile *image_tile;
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ImageTileWrapper(ImageTile *image_tile) : image_tile(image_tile) {}
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TileNumber get_tile_number() const
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{
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return image_tile->tile_number;
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}
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int2 get_tile_offset() const
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{
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return int2(get_tile_x_offset(), get_tile_y_offset());
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}
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int get_tile_x_offset() const
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{
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TileNumber tile_number = get_tile_number();
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return (tile_number - 1001) % 10;
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}
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int get_tile_y_offset() const
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{
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TileNumber tile_number = get_tile_number();
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return (tile_number - 1001) / 10;
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}
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};
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template<typename T, int Channels = 4> struct ImageBufferAccessor {
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static_assert(std::is_same_v<T, int> || std::is_same_v<T, float4>);
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ImBuf &image_buffer;
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ImageBufferAccessor(ImBuf &image_buffer) : image_buffer(image_buffer) {}
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float4 read_pixel(const int2 coordinate)
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{
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if constexpr ((std::is_same_v<T, float4>)) {
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int offset = (coordinate.y * image_buffer.x + coordinate.x) * Channels;
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return float4(&image_buffer.float_buffer.data[offset]);
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}
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if constexpr ((std::is_same_v<T, int>)) {
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int offset = (coordinate.y * image_buffer.x + coordinate.x);
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float4 result;
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rgba_uchar_to_float(
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result,
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static_cast<uchar *>(static_cast<void *>(&image_buffer.byte_buffer.data[offset])));
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return result;
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}
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return float4();
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}
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void write_pixel(const int2 coordinate, float4 new_value)
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{
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if constexpr ((std::is_same_v<T, float>)) {
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int offset = (coordinate.y * image_buffer.x + coordinate.x) * Channels;
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copy_v4_v4(&image_buffer.float_buffer.data[offset], new_value);
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}
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if constexpr ((std::is_same_v<T, int>)) {
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int offset = (coordinate.y * image_buffer.x + coordinate.x);
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rgba_float_to_uchar(
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static_cast<uchar *>(static_cast<void *>(&image_buffer.byte_buffer.data[offset])),
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new_value);
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}
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}
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};
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} // namespace blender::bke::image
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