forked from bartvdbraak/blender
933864da18
Issue was caused by offline rendering could have been allocated the same tile to different devices and in this case buffers would become invalid. Made it more clear in the code, so now it's flag for tile manager to indicate whether tiles should always be allocated for the same device or not. Also cleaned a way how tile index for progressive refine is calculating, which is now avoids tricky computation based on tile coordinate and it's dimensions.
96 lines
2.3 KiB
C++
96 lines
2.3 KiB
C++
/*
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* Copyright 2011, Blender Foundation.
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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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#ifndef __TILE_H__
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#define __TILE_H__
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#include <limits.h>
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#include "buffers.h"
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#include "util_list.h"
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CCL_NAMESPACE_BEGIN
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/* Tile */
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class Tile {
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public:
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int index;
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int x, y, w, h;
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int device;
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bool rendering;
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Tile()
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{}
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Tile(int index_, int x_, int y_, int w_, int h_, int device_)
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: index(index_), x(x_), y(y_), w(w_), h(h_), device(device_), rendering(false) {}
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};
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/* Tile Manager */
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class TileManager {
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public:
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BufferParams params;
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struct State {
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BufferParams buffer;
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int sample;
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int num_samples;
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int resolution_divider;
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int num_tiles;
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int num_rendered_tiles;
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list<Tile> tiles;
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} state;
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TileManager(bool progressive, int num_samples, int2 tile_size, int start_resolution,
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int preserve_tile_device, int num_devices = 1);
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~TileManager();
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void reset(BufferParams& params, int num_samples);
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void set_samples(int num_samples);
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bool next();
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bool next_tile(Tile& tile, int device = 0);
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bool done();
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protected:
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void set_tiles();
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bool progressive;
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int num_samples;
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int2 tile_size;
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int start_resolution;
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int num_devices;
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/* in some cases it is important that the same tile will be returned for the same
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* device it was originally generated for (i.e. viewport rendering when buffer is
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* allocating once for tile and then always used by it)
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*
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* in other cases any tile could be handled by any device (i.e. final rendering
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* without progressive refine)
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*/
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bool preserve_tile_device;
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list<Tile>::iterator next_center_tile(int device = 0);
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};
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CCL_NAMESPACE_END
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#endif /* __TILE_H__ */
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