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blender-archive/source/blender/editors/include/ED_previewrender.h
Ton Roosendaal 9cc59fb0c3 2.5
Added WM Jobs manager
- WM can manage threaded jobs for you; just provide a couple
  of components to get it work:
  - customdata, free callback for it
  - timer step, notifier code
  - start callback, update callback
- Once started, each job runs an own timer, and will for
  every time step check necessary updates, or close the
  job when ready. 
- No drawing happens in jobs, that's for notifiers!
- Every job stores an owner pointer, and based on this owner
  it will prevent multiple jobs to enter the stack. 
  Instead it will re-use a running job, signal it to stop
  and allow caller to re-initialize it even.
- Check new wm_jobs.c for more explanation. Jobs API is still
  under construction. 
  Fun: BLI_addtail(&wm->jobs, steve); :)

Put Node shader previews back using wmJobs
- Preview calculating is now fully threaded (1 thread still)
- Thanks to new event system + notifiers, you can see 
  previews update even while dragging sliders!
- Currently it only starts when you change a node setting.

Warning: the thread render shares Node data, so don't delete
nodes while it renders! This topic is on the todo to make safe.

Also:
- bug in region initialize (do_versions) showed channel list in
  node editor wrong.
- flagged the channel list 'hidden' now, it was really in the
  way! This is for later to work on anyway. 
- recoded Render API callbacks so it gets handlers passed on, 
  no globals to use anymore, remember?
- previewrender code gets now so much nicer! Will remove a lot
  of stuff from code soon.
2009-01-22 14:59:49 +00:00

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/**
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* The Original Code is Copyright (C) 2005 Blender Foundation.
* All rights reserved.
*
* ***** END GPL LICENSE BLOCK *****
*/
#ifndef ED_PREVIEWRENDER_H
#define ED_PREVIEWRENDER_H
#include "DNA_vec_types.h"
struct View3D;
struct SpaceButs;
struct RenderInfo;
struct Image;
struct ScrArea;
struct uiBlock;
struct Render;
struct bContext;
struct ID;
#define PREVIEW_RENDERSIZE 140
typedef void (*VectorDrawFunc)(int x, int y, int w, int h, float alpha);
/* stores rendered preview - is also used for icons */
typedef struct RenderInfo {
int pr_rectx;
int pr_recty;
short curtile, tottile, status;
rcti disprect; /* storage for view3d preview rect */
unsigned int* rect;
struct Render *re; /* persistant render */
} RenderInfo;
/* ri->status */
#define PR_DBASE 1
#define PR_DISPRECT 2
#define PR_PROJECTED 4
#define PR_ROTATED 8
/* Render the preview
pr_method:
- PR_DRAW_RENDER: preview is rendered and drawn, as indicated by called context (buttons panel)
- PR_ICON_RENDER: the preview is not drawn and the function is not dynamic,
so no events are processed. Hopefully fast enough for at least 32x32
- PR_DO_RENDER: preview is rendered, not drawn, but events are processed for afterqueue,
in use for node editor now.
*/
#define PR_DRAW_RENDER 0
#define PR_ICON_RENDER 1
#define PR_DO_RENDER 2
void ED_preview_init_dbase(void);
void ED_preview_free_dbase(void);
void ED_preview_shader_job(const struct bContext *C, void *owner, struct ID *id, int sizex, int sizey);
#endif