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73 lines
2.5 KiB
C++
73 lines
2.5 KiB
C++
/*
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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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#pragma once
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#include "swrenderer/drawers/r_draw.h"
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#include "swrenderer/drawers/r_thread.h"
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#include "polyrenderer/drawers/screen_triangle.h"
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#include "polyrenderer/math/tri_matrix.h"
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#include "polyrenderer/drawers/poly_buffer.h"
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#include "polyrenderer/drawers/poly_draw_args.h"
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struct ShadedTriVertex : public TriVertex
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{
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float clipDistance0;
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};
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typedef void(*PolyDrawFuncPtr)(const TriDrawTriangleArgs *, WorkerThreadData *);
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class PolyTriangleDrawer
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{
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public:
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static void set_viewport(int x, int y, int width, int height, DCanvas *canvas);
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static void draw(const PolyDrawArgs &args);
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static void toggle_mirror();
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private:
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static ShadedTriVertex shade_vertex(const TriMatrix &objectToClip, const float *clipPlane, const TriVertex &v);
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static void draw_arrays(const PolyDrawArgs &args, WorkerThreadData *thread);
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static void draw_shaded_triangle(const ShadedTriVertex *vertices, bool ccw, TriDrawTriangleArgs *args, WorkerThreadData *thread, PolyDrawFuncPtr *drawfuncs, int num_drawfuncs);
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static int clipedge(const ShadedTriVertex *verts, TriVertex *clippedvert);
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static int viewport_x, viewport_y, viewport_width, viewport_height, dest_pitch, dest_width, dest_height;
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static bool dest_bgra;
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static uint8_t *dest;
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static bool mirror;
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enum { max_additional_vertices = 16 };
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friend class DrawPolyTrianglesCommand;
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};
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class DrawPolyTrianglesCommand : public DrawerCommand
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{
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public:
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DrawPolyTrianglesCommand(const PolyDrawArgs &args, bool mirror);
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void Execute(DrawerThread *thread) override;
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FString DebugInfo() override;
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private:
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PolyDrawArgs args;
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};
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