53eadcc533
Converts the image engine to the new draw manager. This is an as is migration without just a few tweaks to improve the code. Pull Request: https://projects.blender.org/blender/blender/pulls/131142
105 lines
2.4 KiB
C++
105 lines
2.4 KiB
C++
/* SPDX-FileCopyrightText: 2021 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 draw_engine
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*/
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#pragma once
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#include "BKE_image_wrappers.hh"
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#include "image_batches.hh"
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#include "image_buffer_cache.hh"
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#include "image_partial_updater.hh"
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#include "image_private.hh"
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#include "image_shader_params.hh"
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#include "image_texture_info.hh"
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#include "image_usage.hh"
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#include "DRW_render.hh"
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#include "draw_command.hh"
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#include "draw_manager.hh"
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#include "draw_pass.hh"
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namespace blender::image_engine {
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using namespace blender::draw;
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struct State {
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::Image *image = nullptr;
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/** Usage data of the previous time, to identify changes that require a full update. */
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ImageUsage last_usage;
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PartialImageUpdater partial_update = {};
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View view = {"Image.View"};
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ShaderParameters sh_params;
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struct {
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/**
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* \brief should we perform tiled drawing (wrap repeat).
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*
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* Option is true when image is capable of tile drawing (image is not tile) and the tiled
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* option is set in the space.
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*/
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bool do_tile_drawing : 1;
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} flags;
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Framebuffer depth_fb = {"Image.Depth"};
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Framebuffer color_fb = {"Image.Color"};
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PassSimple depth_ps = {"Image.Depth"};
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PassSimple image_ps = {"Image.Color"};
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/**
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* Cache containing the float buffers when drawing byte images.
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*/
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FloatBufferCache float_buffers;
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/** \brief Transform matrix to convert a normalized screen space coordinates to texture space. */
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float ss_to_texture[4][4];
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Vector<TextureInfo> texture_infos;
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public:
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virtual ~State() = default;
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void clear_need_full_update_flag()
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{
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reset_need_full_update(false);
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}
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void mark_all_texture_slots_dirty()
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{
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reset_need_full_update(true);
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}
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void update_batches()
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{
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for (TextureInfo &info : texture_infos) {
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BatchUpdater batch_updater(info);
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batch_updater.update_batch();
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}
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}
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void update_image_usage(const ImageUser *image_user)
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{
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ImageUsage usage(image, image_user, flags.do_tile_drawing);
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if (last_usage != usage) {
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last_usage = usage;
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reset_need_full_update(true);
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float_buffers.clear();
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}
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}
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private:
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/** \brief Set dirty flag of all texture slots to the given value. */
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void reset_need_full_update(bool new_value)
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{
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for (TextureInfo &info : texture_infos) {
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info.need_full_update = new_value;
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}
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}
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};
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} // namespace blender::image_engine
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