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75 lines
2 KiB
C++
75 lines
2 KiB
C++
//-----------------------------------------------------------------------------
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//
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// Copyright 1999-2016 Randy Heit
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// Copyright 2016 Magnus Norddahl
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (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, see http://www.gnu.org/licenses/
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//
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//-----------------------------------------------------------------------------
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#include <stdlib.h>
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#include "templates.h"
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#include "doomdef.h"
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#include "m_bbox.h"
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#include "i_system.h"
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#include "p_lnspec.h"
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#include "p_setup.h"
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#include "swrenderer/drawers/r_draw.h"
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#include "swrenderer/plane/r_visibleplane.h"
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#include "a_sharedglobal.h"
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#include "g_level.h"
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#include "p_effect.h"
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#include "doomstat.h"
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#include "r_state.h"
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#include "v_palette.h"
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#include "r_sky.h"
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#include "po_man.h"
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#include "r_data/colormaps.h"
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#include "r_memory.h"
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void *RenderMemory::AllocBytes(int size)
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{
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size = (size + 15) / 16 * 16; // 16-byte align
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if (UsedBlocks.empty() || UsedBlocks.back()->Position + size > BlockSize)
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{
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if (!FreeBlocks.empty())
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{
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auto block = std::move(FreeBlocks.back());
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block->Position = 0;
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FreeBlocks.pop_back();
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UsedBlocks.push_back(std::move(block));
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}
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else
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{
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UsedBlocks.push_back(std::unique_ptr<MemoryBlock>(new MemoryBlock()));
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}
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}
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auto &block = UsedBlocks.back();
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void *data = block->Data + block->Position;
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block->Position += size;
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return data;
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}
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void RenderMemory::Clear()
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{
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while (!UsedBlocks.empty())
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{
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auto block = std::move(UsedBlocks.back());
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UsedBlocks.pop_back();
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FreeBlocks.push_back(std::move(block));
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}
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}
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