/* ** Voxel rendering ** Copyright (c) 1998-2016 Randy Heit ** Copyright (c) 2016 Magnus Norddahl ** ** This software is provided 'as-is', without any express or implied ** warranty. In no event will the authors be held liable for any damages ** arising from the use of this software. ** ** Permission is granted to anyone to use this software for any purpose, ** including commercial applications, and to alter it and redistribute it ** freely, subject to the following restrictions: ** ** 1. The origin of this software must not be misrepresented; you must not ** claim that you wrote the original software. If you use this software ** in a product, an acknowledgment in the product documentation would be ** appreciated but is not required. ** 2. Altered source versions must be plainly marked as such, and must not be ** misrepresented as being the original software. ** 3. This notice may not be removed or altered from any source distribution. ** */ #pragma once struct kvxslab_t; namespace swrenderer { struct vissprite_t; void R_DrawVisVoxel(vissprite_t *sprite, int minZ, int maxZ, short *cliptop, short *clipbottom); void R_FillBox(DVector3 origin, double extentX, double extentY, int color, short *cliptop, short *clipbottom, bool viewspace, bool pixelstretch); kvxslab_t *R_GetSlabStart(const FVoxelMipLevel &mip, int x, int y); kvxslab_t *R_GetSlabEnd(const FVoxelMipLevel &mip, int x, int y); kvxslab_t *R_NextSlab(kvxslab_t *slab); void R_DeinitRenderVoxel(); // [RH] A c-buffer. Used for keeping track of offscreen voxel spans. struct FCoverageBuffer { struct Span { Span *NextSpan; short Start, Stop; }; FCoverageBuffer(int size); ~FCoverageBuffer(); void Clear(); void InsertSpan(int listnum, int start, int stop); Span *AllocSpan(); FMemArena SpanArena; Span **Spans; // [0..NumLists-1] span lists Span *FreeSpans; unsigned int NumLists; }; }