8571dfa881
This replaces the hardcoded function with modifier type callbacks to make it easier to customize the reading/writing for custom modifier data. No functional changes. Pull Request: https://projects.blender.org/blender/blender/pulls/145737
111 lines
2.8 KiB
C++
111 lines
2.8 KiB
C++
/* SPDX-FileCopyrightText: 2025 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 sequencer
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*/
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#include "BLI_math_base.h"
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#include "BLT_translation.hh"
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#include "DNA_scene_types.h"
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#include "DNA_sequence_types.h"
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#include "SEQ_modifier.hh"
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#include "UI_interface.hh"
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#include "UI_interface_layout.hh"
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#include "modifier.hh"
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namespace blender::seq {
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static float load_mask_min(const uchar *&mask)
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{
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float m = float(min_iii(mask[0], mask[1], mask[2])) * (1.0f / 255.0f);
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mask += 4;
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return m;
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}
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static float load_mask_min(const float *&mask)
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{
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float m = min_fff(mask[0], mask[1], mask[2]);
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mask += 4;
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return m;
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}
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static float load_mask_min(const void *& /*mask*/)
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{
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return 1.0f;
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}
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struct MaskApplyOp {
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template<typename ImageT, typename MaskT>
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void apply(ImageT *image, const MaskT *mask, IndexRange size)
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{
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for ([[maybe_unused]] int64_t i : size) {
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float m = load_mask_min(mask);
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if constexpr (std::is_same_v<ImageT, uchar>) {
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/* Byte buffer is straight, so only affect on alpha itself, this is
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* the only way to alpha-over byte strip after applying mask modifier. */
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image[3] = uchar(image[3] * m);
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}
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else if constexpr (std::is_same_v<ImageT, float>) {
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/* Float buffers are premultiplied, so need to premul color as well to make it
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* easy to alpha-over masked strip. */
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float4 pix(image);
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pix *= m;
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*reinterpret_cast<float4 *>(image) = pix;
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}
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image += 4;
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}
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}
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};
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static void maskmodifier_apply(const StripScreenQuad & /*quad*/,
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StripModifierData * /*smd*/,
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ImBuf *ibuf,
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ImBuf *mask)
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{
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if (mask == nullptr || (mask->byte_buffer.data == nullptr && mask->float_buffer.data == nullptr))
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{
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return;
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}
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MaskApplyOp op;
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apply_modifier_op(op, ibuf, mask);
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/* Image has gained transparency. */
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ibuf->planes = R_IMF_PLANES_RGBA;
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}
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static void maskmodifier_panel_draw(const bContext *C, Panel *panel)
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{
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uiLayout *layout = panel->layout;
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PointerRNA *ptr = UI_panel_custom_data_get(panel);
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draw_mask_input_type_settings(C, layout, ptr);
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}
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static void maskmodifier_register(ARegionType *region_type)
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{
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modifier_panel_register(region_type, eSeqModifierType_Mask, maskmodifier_panel_draw);
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}
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StripModifierTypeInfo seqModifierType_Mask = {
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/*idname*/ "Mask",
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/*name*/ CTX_N_(BLT_I18NCONTEXT_ID_SEQUENCE, "Mask"),
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/*struct_name*/ "SequencerMaskModifierData",
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/*struct_size*/ sizeof(SequencerMaskModifierData),
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/*init_data*/ nullptr,
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/*free_data*/ nullptr,
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/*copy_data*/ nullptr,
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/*apply*/ maskmodifier_apply,
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/*panel_register*/ maskmodifier_register,
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/*blend_write*/ nullptr,
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/*blend_read*/ nullptr,
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};
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}; // namespace blender::seq
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