8815f2f116
GPU_select originally used GL_SELECT which defined the format for storing the selection result. Now this is no longer the case, define our own struct - making the code easier to follow: - Avoid having to deal with arrays in both `uint*` and `uint(*)[4]` multiplying offsets by 4 in some cases & not others. - No magic numbers for the offsets of depth & selection-ID. - No need to allocate unused members to match GL_SELECT (halving the buffer size).
61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
/*
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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) 2014 Blender Foundation.
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* All rights reserved.
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*/
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/** \file
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* \ingroup gpu
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*
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* Selection implementations.
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*/
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#pragma once
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* gpu_select_pick */
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void gpu_select_pick_begin(GPUSelectResult *buffer,
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uint buffer_len,
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const rcti *input,
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eGPUSelectMode mode);
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bool gpu_select_pick_load_id(uint id, bool end);
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uint gpu_select_pick_end(void);
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void gpu_select_pick_cache_begin(void);
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void gpu_select_pick_cache_end(void);
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/**
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* \return true if drawing is not needed.
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*/
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bool gpu_select_pick_is_cached(void);
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void gpu_select_pick_cache_load_id(void);
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/* gpu_select_sample_query */
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void gpu_select_query_begin(
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GPUSelectResult *buffer, uint buffer_len, const rcti *input, eGPUSelectMode mode, int oldhits);
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bool gpu_select_query_load_id(uint id);
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uint gpu_select_query_end(void);
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#define SELECT_ID_NONE ((uint)0xffffffff)
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#ifdef __cplusplus
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}
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#endif
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