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https://git.code.sf.net/p/quake/quakeforge
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Canvas draw order is sorted by group then order within the group. As a fallback, the canvas entity id is used to keep the sort stable, but that's only as stable as the ids themselves (if the canvases are destroyed and recreated, the ids may switch around).
153 lines
4 KiB
C
153 lines
4 KiB
C
/*
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canvas.h
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Integration of 2d and 3d objects
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Copyright (C) 2022 Bill Currie <bill@taniwha.org>
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Author: Bill Currie <bill@taniwha.org>
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Date: 2022/12/12
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifndef __QF_scene_canvas_h
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#define __QF_scene_canvas_h
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#include "QF/ecs.h"
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#include "QF/ui/view.h"
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enum {
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canvas_update,
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canvas_updateonce,
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canvas_tile,
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canvas_pic,
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canvas_fitpic, // pic is scaled to fit the view
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canvas_subpic,
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canvas_cachepic,
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canvas_fill,
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canvas_charbuff,
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canvas_passage_glyphs, // copy of text_passage_glyphs
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canvas_glyphs, // copy of text_passage_glyphs
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canvas_func,
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canvas_outline,
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canvas_lateupdate,
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// last so deleting an entity removes the grouped components first
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// also, does not have a subpool
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canvas_canvas,
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canvas_comp_count
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};
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typedef struct canvas_s {
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ecs_registry_t *reg;
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uint32_t base;
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int16_t draw_order;
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int16_t draw_group;
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bool visible;
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uint32_t range[canvas_canvas];
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} canvas_t;
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extern const struct component_s canvas_components[canvas_comp_count];
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typedef struct canvas_system_s {
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ecs_registry_t *reg;
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uint32_t base;
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uint32_t view_base;
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uint32_t text_base;
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uint32_t imui_base;
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} canvas_system_t;
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struct view_s;
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struct view_pos_s;
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typedef void (*canvas_update_f) (struct view_s);
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typedef void (*canvas_func_f) (struct view_pos_s, struct view_pos_s);
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typedef struct canvas_subpic_s {
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struct qpic_s *pic;
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uint32_t x, y;
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uint32_t w, h;
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} canvas_subpic_t;
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#define CANVASINLINE GNU89INLINE inline
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void Canvas_InitSys (canvas_system_t *canvas_sys, ecs_registry_t *reg);
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void Canvas_AddToEntity (canvas_system_t canvas_sys, uint32_t ent);
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uint32_t Canvas_New (canvas_system_t canvas_sys);
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void Canvas_Draw (canvas_system_t canvas_sys);
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void Canvas_SortComponentPool (canvas_system_t canvas_sys, uint32_t ent,
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uint32_t component);
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void Canvas_SetLen (canvas_system_t canvas_sys, uint32_t ent, view_pos_t len);
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CANVASINLINE view_t Canvas_GetRootView (canvas_system_t canvas_sys,
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uint32_t ent);
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CANVASINLINE bool *Canvas_Visible (canvas_system_t canvas_sys, uint32_t ent);
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CANVASINLINE int16_t *Canvas_DrawGroup (canvas_system_t canvas_sys,
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uint32_t ent);
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CANVASINLINE int16_t *Canvas_DrawOrder (canvas_system_t canvas_sys,
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uint32_t ent);
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void Canvas_DrawSort (canvas_system_t canvas_sys);
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#undef CANVASINLINE
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#ifndef IMPLEMENT_CANVAS_Funcs
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#define CANVASINLINE GNU89INLINE inline
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#else
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#define CANVASINLINE VISIBLE
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#endif
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CANVASINLINE
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view_t
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Canvas_GetRootView (canvas_system_t canvas_sys, uint32_t ent)
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{
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ecs_system_t viewsys = { canvas_sys.reg, canvas_sys.view_base };
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return View_FromEntity (viewsys, ent);
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}
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CANVASINLINE
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bool *
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Canvas_Visible (canvas_system_t canvas_sys, uint32_t ent)
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{
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uint32_t comp = canvas_sys.base + canvas_canvas;
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auto canvas = (canvas_t *) Ent_GetComponent (ent, comp, canvas_sys.reg);
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return &canvas->visible;
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}
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CANVASINLINE
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int16_t *
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Canvas_DrawGroup (canvas_system_t canvas_sys, uint32_t ent)
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{
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uint32_t comp = canvas_sys.base + canvas_canvas;
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auto canvas = (canvas_t *) Ent_GetComponent (ent, comp, canvas_sys.reg);
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return &canvas->draw_group;
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}
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CANVASINLINE
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int16_t *
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Canvas_DrawOrder (canvas_system_t canvas_sys, uint32_t ent)
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{
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uint32_t comp = canvas_sys.base + canvas_canvas;
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auto canvas = (canvas_t *) Ent_GetComponent (ent, comp, canvas_sys.reg);
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return &canvas->draw_order;
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}
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#undef CANVASINLINE
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#endif//__QF_scene_canvas_h
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