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101 lines
2.6 KiB
C++
101 lines
2.6 KiB
C++
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/*
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** Triangle drawers
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** Copyright (c) 2016 Magnus Norddahl
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**
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** This software is provided 'as-is', without any express or implied
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** warranty. In no event will the authors be held liable for any damages
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** arising from the use of this software.
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**
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** Permission is granted to anyone to use this software for any purpose,
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** including commercial applications, and to alter it and redistribute it
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** freely, subject to the following restrictions:
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**
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** 1. The origin of this software must not be misrepresented; you must not
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** claim that you wrote the original software. If you use this software
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** in a product, an acknowledgment in the product documentation would be
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** appreciated but is not required.
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** 2. Altered source versions must be plainly marked as such, and must not be
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** misrepresented as being the original software.
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** 3. This notice may not be removed or altered from any source distribution.
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**
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*/
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#include <stddef.h>
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#include "templates.h"
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#include "doomdef.h"
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#include "i_system.h"
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#include "w_wad.h"
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#include "v_video.h"
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#include "doomstat.h"
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#include "st_stuff.h"
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#include "g_game.h"
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#include "g_level.h"
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#include "r_data/r_translate.h"
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#include "v_palette.h"
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#include "r_data/colormaps.h"
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#include "poly_buffer.h"
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#include "swrenderer/drawers/r_drawers.h"
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/////////////////////////////////////////////////////////////////////////////
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PolySubsectorGBuffer *PolySubsectorGBuffer::Instance()
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{
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static PolySubsectorGBuffer buffer;
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return &buffer;
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}
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void PolySubsectorGBuffer::Resize(int newwidth, int newheight)
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{
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width = newwidth;
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height = newheight;
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values.resize(width * height);
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}
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/////////////////////////////////////////////////////////////////////////////
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PolyStencilBuffer *PolyStencilBuffer::Instance()
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{
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static PolyStencilBuffer buffer;
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return &buffer;
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}
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void PolyStencilBuffer::Clear(int newwidth, int newheight, uint8_t stencil_value)
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{
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width = newwidth;
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height = newheight;
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int count = BlockWidth() * BlockHeight();
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values.resize(count * 64);
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masks.resize(count);
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uint8_t *v = Values();
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uint32_t *m = Masks();
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for (int i = 0; i < count; i++)
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{
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m[i] = 0xffffff00 | stencil_value;
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}
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}
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/////////////////////////////////////////////////////////////////////////////
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namespace
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{
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int NextBufferVertex = 0;
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}
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TriVertex *PolyVertexBuffer::GetVertices(int count)
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{
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enum { VertexBufferSize = 256 * 1024 };
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static TriVertex Vertex[VertexBufferSize];
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if (NextBufferVertex + count > VertexBufferSize)
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return nullptr;
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TriVertex *v = Vertex + NextBufferVertex;
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NextBufferVertex += count;
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return v;
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}
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void PolyVertexBuffer::Clear()
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{
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NextBufferVertex = 0;
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}
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