Sergey Sharybin
86991fbcb0
It was caused by image threading safe commit and it was noticeable only on really multi-core CPU (like dual-socket Xeon stations), was not visible on core i7 machine. The reason of slowdown was spinlock around image buffer referencing, which lead to lots of cores waiting for single core and using image buffer after it was referenced was not so much longer than doing reference itself. The most clear solution here seemed to be introducing Image Pool which will contain list of loaded and referenced image buffers, so all threads could skip lock if the pool is used for reading only. Lock only needed in cases when buffer for requested image user is missing in the pool. This lock will happen only once per image so overall amount of locks is much less that it was before. To operate with pool: - BKE_image_pool_new() creates new pool - BKE_image_pool_free() destroys pool and dereferences all image buffers which were loaded to it - BKE_image_pool_acquire_ibuf() returns image buffer for given image and user. Pool could be NULL and in this case fallback to BKE_image_acquire_ibuf will happen. This helps to avoid lots to if(poll) checks in image sampling code. - BKE_image_pool_release_ibuf releases image buffer. In fact, it will only do something if pool is NULL, in all other case it'll equal to DoNothing operation.
138 lines
4.1 KiB
C++
138 lines
4.1 KiB
C++
/*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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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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*
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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. See the
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* GNU General Public License for more details.
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*
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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 the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2009 by Nicholas Bishop
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): none yet.
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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#ifndef __BKE_PAINT_H__
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#define __BKE_PAINT_H__
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/** \file BKE_paint.h
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* \ingroup bke
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*/
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struct bContext;
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struct BMesh;
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struct BMFace;
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struct Brush;
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struct MDisps;
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struct MeshElemMap;
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struct GridPaintMask;
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struct MFace;
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struct MultireModifierData;
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struct MVert;
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struct Object;
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struct Paint;
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struct PBVH;
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struct Scene;
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struct StrokeCache;
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struct ImagePool;
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extern const char PAINT_CURSOR_SCULPT[3];
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extern const char PAINT_CURSOR_VERTEX_PAINT[3];
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extern const char PAINT_CURSOR_WEIGHT_PAINT[3];
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extern const char PAINT_CURSOR_TEXTURE_PAINT[3];
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void BKE_paint_init(struct Paint *p, const char col[3]);
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void BKE_paint_free(struct Paint *p);
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void BKE_paint_copy(struct Paint *src, struct Paint *tar);
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/* TODO, give these BKE_ prefix too */
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struct Paint *paint_get_active(struct Scene *sce);
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struct Paint *paint_get_active_from_context(const struct bContext *C);
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struct Brush *paint_brush(struct Paint *paint);
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void paint_brush_set(struct Paint *paint, struct Brush *br);
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/* testing face select mode
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* Texture paint could be removed since selected faces are not used
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* however hiding faces is useful */
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int paint_facesel_test(struct Object *ob);
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int paint_vertsel_test(struct Object *ob);
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/* partial visibility */
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int paint_is_face_hidden(const struct MFace *f, const struct MVert *mvert);
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int paint_is_grid_face_hidden(const unsigned int *grid_hidden,
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int gridsize, int x, int y);
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int paint_is_bmesh_face_hidden(struct BMFace *f);
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/* paint masks */
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float paint_grid_paint_mask(const struct GridPaintMask *gpm, unsigned level,
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unsigned x, unsigned y);
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/* Session data (mode-specific) */
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typedef struct SculptSession {
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/* Mesh data (not copied) can come either directly from a Mesh, or from a MultiresDM */
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struct MultiresModifierData *multires; /* Special handling for multires meshes */
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struct MVert *mvert;
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struct MPoly *mpoly;
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struct MLoop *mloop;
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int totvert, totpoly;
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float *face_normals;
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struct KeyBlock *kb;
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float *vmask;
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/* Mesh connectivity */
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const struct MeshElemMap *pmap;
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/* BMesh for dynamic topology sculpting */
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struct BMesh *bm;
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int bm_smooth_shading;
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/* Undo/redo log for dynamic topology sculpting */
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struct BMLog *bm_log;
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/* PBVH acceleration structure */
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struct PBVH *pbvh;
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int show_diffuse_color;
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/* Paiting on deformed mesh */
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int modifiers_active; /* object is deformed with some modifiers */
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float (*orig_cos)[3]; /* coords of undeformed mesh */
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float (*deform_cos)[3]; /* coords of deformed mesh but without stroke displacement */
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float (*deform_imats)[3][3]; /* crazyspace deformation matrices */
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/* Partial redraw */
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int partial_redraw;
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/* Used to cache the render of the active texture */
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unsigned int texcache_side, *texcache, texcache_actual;
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struct ImagePool *tex_pool;
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/* Layer brush persistence between strokes */
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float (*layer_co)[3]; /* Copy of the mesh vertices' locations */
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struct SculptStroke *stroke;
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struct StrokeCache *cache;
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/* last paint/sculpt stroke location */
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int last_stroke_valid;
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float last_stroke[3];
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} SculptSession;
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void free_sculptsession(struct Object *ob);
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void free_sculptsession_deformMats(struct SculptSession *ss);
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void sculptsession_bm_to_me(struct Object *ob, int reorder);
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#endif
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