e955c94ed3
Listing the "Blender Foundation" as copyright holder implied the Blender Foundation holds copyright to files which may include work from many developers. While keeping copyright on headers makes sense for isolated libraries, Blender's own code may be refactored or moved between files in a way that makes the per file copyright holders less meaningful. Copyright references to the "Blender Foundation" have been replaced with "Blender Authors", with the exception of `./extern/` since these this contains libraries which are more isolated, any changed to license headers there can be handled on a case-by-case basis. Some directories in `./intern/` have also been excluded: - `./intern/cycles/` it's own `AUTHORS` file is planned. - `./intern/opensubdiv/`. An "AUTHORS" file has been added, using the chromium projects authors file as a template. Design task: #110784 Ref !110783.
91 lines
2.3 KiB
C++
91 lines
2.3 KiB
C++
/* SPDX-FileCopyrightText: 2022 Blender Authors
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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_color.h"
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#include "BLI_math_vector.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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