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