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- added non-sse span drawers
This commit is contained in:
Magnus Norddahl
parent
5644b2c0fd
commit
1435832b09
1 changed files with 434 additions and 0 deletions
434
src/swrenderer/drawers/r_draw_span32.h
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434
src/swrenderer/drawers/r_draw_span32.h
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/*
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** Drawer commands for spans
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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_rgba.h"
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#include "swrenderer/viewport/r_spandrawer.h"
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namespace swrenderer
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{
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namespace DrawSpan32TModes
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{
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enum class SpanBlendModes { Opaque, Masked, Translucent, AddClamp, SubClamp, RevSubClamp };
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struct OpaqueSpan { static const int Mode = (int)SpanBlendModes::Opaque; };
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struct MaskedSpan { static const int Mode = (int)SpanBlendModes::Masked; };
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struct TranslucentSpan { static const int Mode = (int)SpanBlendModes::Translucent; };
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struct AddClampSpan { static const int Mode = (int)SpanBlendModes::AddClamp; };
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struct SubClampSpan { static const int Mode = (int)SpanBlendModes::SubClamp; };
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struct RevSubClampSpan { static const int Mode = (int)SpanBlendModes::RevSubClamp; };
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enum class FilterModes { Nearest, Linear };
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struct NearestFilter { static const int Mode = (int)FilterModes::Nearest; };
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struct LinearFilter { static const int Mode = (int)FilterModes::Linear; };
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enum class ShadeMode { Simple, Advanced };
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struct SimpleShade { static const int Mode = (int)ShadeMode::Simple; };
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struct AdvancedShade { static const int Mode = (int)ShadeMode::Advanced; };
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enum class SpanTextureSize { SizeAny, Size64x64 };
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struct TextureSizeAny { static const int Mode = (int)SpanTextureSize::SizeAny; };
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struct TextureSize64x64 { static const int Mode = (int)SpanTextureSize::Size64x64; };
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}
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template<typename BlendT>
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class DrawSpan32T : public DrawerCommand
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{
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protected:
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SpanDrawerArgs args;
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public:
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DrawSpan32T(const SpanDrawerArgs &drawerargs) : args(drawerargs) { }
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struct TextureData
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{
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uint32_t xbits;
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uint32_t ybits;
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uint32_t xstep;
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uint32_t ystep;
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uint32_t xfrac;
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uint32_t yfrac;
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uint32_t yshift;
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uint32_t xshift;
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uint32_t xmask;
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const uint32_t *source;
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};
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void Execute(DrawerThread *thread) override
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{
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using namespace DrawSpan32TModes;
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if (thread->line_skipped_by_thread(args.DestY())) return;
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TextureData texdata;
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texdata.xbits = args.TextureWidthBits();
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texdata.ybits = args.TextureHeightBits();
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texdata.xstep = args.TextureUStep();
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texdata.ystep = args.TextureVStep();
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texdata.xfrac = args.TextureUPos();
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texdata.yfrac = args.TextureVPos();
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texdata.yshift = 32 - texdata.ybits;
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texdata.xshift = texdata.yshift - texdata.xbits;
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texdata.xmask = ((1 << texdata.xbits) - 1) << texdata.ybits;
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texdata.source = (const uint32_t*)args.TexturePixels();
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double lod = args.TextureLOD();
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bool mipmapped = args.MipmappedTexture();
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bool magnifying = lod < 0.0;
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if (r_mipmap && mipmapped)
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{
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int level = (int)lod;
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while (level > 0)
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{
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if (texdata.xbits <= 2 || texdata.ybits <= 2)
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break;
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texdata.source += (1 << (texdata.xbits)) * (1 << (texdata.ybits));
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texdata.xbits -= 1;
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texdata.ybits -= 1;
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level--;
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}
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}
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bool is_nearest_filter = !((magnifying && r_magfilter) || (!magnifying && r_minfilter));
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bool is_64x64 = texdata.xbits == 6 && texdata.ybits == 6;
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auto shade_constants = args.ColormapConstants();
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if (shade_constants.simple_shade)
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{
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if (is_nearest_filter)
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{
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if (is_64x64)
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Loop<SimpleShade, NearestFilter, TextureSize64x64>(thread, texdata, shade_constants);
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else
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Loop<SimpleShade, NearestFilter, TextureSizeAny>(thread, texdata, shade_constants);
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}
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else
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{
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if (is_64x64)
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Loop<SimpleShade, LinearFilter, TextureSize64x64>(thread, texdata, shade_constants);
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else
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Loop<SimpleShade, LinearFilter, TextureSizeAny>(thread, texdata, shade_constants);
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}
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}
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else
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{
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if (is_nearest_filter)
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{
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if (is_64x64)
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Loop<AdvancedShade, NearestFilter, TextureSize64x64>(thread, texdata, shade_constants);
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else
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Loop<AdvancedShade, NearestFilter, TextureSizeAny>(thread, texdata, shade_constants);
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}
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else
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{
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if (is_64x64)
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Loop<AdvancedShade, LinearFilter, TextureSize64x64>(thread, texdata, shade_constants);
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else
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Loop<AdvancedShade, LinearFilter, TextureSizeAny>(thread, texdata, shade_constants);
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}
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}
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}
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template<typename ShadeModeT, typename FilterModeT, typename TextureSizeT>
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FORCEINLINE void Loop(DrawerThread *thread, TextureData texdata, ShadeConstants shade_constants)
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{
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using namespace DrawSpan32TModes;
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// Shade constants
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uint32_t light = 256 - (args.Light() >> (FRACBITS - 8));
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uint32_t inv_light = 256 - light;
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int inv_desaturate;
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BgraColor shade_fade, shade_light;
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int desaturate;
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if (ShadeModeT::Mode == (int)ShadeMode::Advanced)
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{
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inv_desaturate = 256 - shade_constants.desaturate;
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shade_fade.r = shade_constants.fade_red * inv_light;
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shade_fade.g = shade_constants.fade_green * inv_light;
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shade_fade.b = shade_constants.fade_blue * inv_light;
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shade_light.r = shade_constants.light_red;
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shade_light.g = shade_constants.light_green;
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shade_light.b = shade_constants.light_blue;
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desaturate = shade_constants.desaturate;
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}
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else
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{
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inv_desaturate = 0;
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shade_fade.r = 0;
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shade_fade.g = 0;
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shade_fade.b = 0;
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shade_light.r = 0;
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shade_light.g = 0;
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shade_light.b = 0;
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desaturate = 0;
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}
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auto lights = args.dc_lights;
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auto num_lights = args.dc_num_lights;
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float viewpos_x = args.dc_viewpos.X;
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float step_viewpos_x = args.dc_viewpos_step.X;
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int count = args.DestX2() - args.DestX1() + 1;
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int pitch = args.Viewport()->RenderTarget->GetPitch();
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uint32_t *dest = (uint32_t*)args.Viewport()->GetDest(args.DestX1(), args.DestY());
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if (FilterModeT::Mode == (int)FilterModes::Linear)
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{
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texdata.xfrac -= 1 << (31 - texdata.xbits);
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texdata.yfrac -= 1 << (31 - texdata.ybits);
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}
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uint32_t srcalpha = args.SrcAlpha() >> (FRACBITS - 8);
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uint32_t destalpha = args.DestAlpha() >> (FRACBITS - 8);
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for (int index = 0; index < count; index++)
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{
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BgraColor bgcolor;
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if (BlendT::Mode != (int)SpanBlendModes::Opaque)
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{
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bgcolor = *dest;
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}
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else
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{
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bgcolor = 0;
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}
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uint32_t ifgcolor = Sample<FilterModeT, TextureSizeT>(texdata.xbits, texdata.ybits, texdata.xstep, texdata.ystep, texdata.xfrac, texdata.yfrac, texdata.yshift, texdata.xshift, texdata.xmask, texdata.source);
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BgraColor fgcolor = Shade<ShadeModeT>(ifgcolor, light, desaturate, inv_desaturate, shade_fade, shade_light, lights, num_lights, viewpos_x);
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BgraColor outcolor = Blend(fgcolor, bgcolor, srcalpha, destalpha, ifgcolor);
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*dest = outcolor;
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dest++;
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texdata.xfrac += texdata.xstep;
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texdata.yfrac += texdata.ystep;
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viewpos_x += step_viewpos_x;
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}
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}
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template<typename FilterModeT, typename TextureSizeT>
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FORCEINLINE uint32_t Sample(uint32_t xbits, uint32_t ybits, uint32_t xstep, uint32_t ystep, uint32_t xfrac, uint32_t yfrac, uint32_t yshift, uint32_t xshift, uint32_t xmask, const uint32_t *source)
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{
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using namespace DrawSpan32TModes;
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if (FilterModeT::Mode == (int)FilterModes::Nearest && TextureSizeT::Mode == (int)SpanTextureSize::Size64x64)
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{
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int sample_index = ((xfrac >> (32 - 6 - 6)) & (63 * 64)) + (yfrac >> (32 - 6));
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return source[sample_index];
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}
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else if (FilterModeT::Mode == (int)FilterModes::Nearest)
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{
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int sample_index = ((xfrac >> xshift) & xmask) + (yfrac >> yshift);
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return source[sample_index];
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}
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else
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{
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uint32_t xxbits, yybits;
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if (TextureSizeT::Mode == (int)SpanTextureSize::Size64x64)
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{
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xxbits = 26;
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yybits = 26;
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}
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else
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{
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xxbits = 32 - xbits;
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yybits = 32 - ybits;
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}
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uint32_t xxshift = (32 - xxbits);
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uint32_t yyshift = (32 - yybits);
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uint32_t xxmask = (1 << xxshift) - 1;
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uint32_t yymask = (1 << yyshift) - 1;
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uint32_t x = xfrac >> xxbits;
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uint32_t y = yfrac >> yybits;
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uint32_t p00 = source[((y & yymask) + ((x & xxmask) << yyshift))];
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uint32_t p01 = source[(((y + 1) & yymask) + ((x & xxmask) << yyshift))];
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uint32_t p10 = source[((y & yymask) + (((x + 1) & xxmask) << yyshift))];
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uint32_t p11 = source[(((y + 1) & yymask) + (((x + 1) & xxmask) << yyshift))];
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uint32_t inv_b = (xfrac >> (xxbits - 4)) & 15;
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uint32_t inv_a = (yfrac >> (yybits - 4)) & 15;
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uint32_t a = 16 - inv_a;
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uint32_t b = 16 - inv_b;
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uint32_t sred = (RPART(p00) * (a * b) + RPART(p01) * (inv_a * b) + RPART(p10) * (a * inv_b) + RPART(p11) * (inv_a * inv_b) + 127) >> 8;
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uint32_t sgreen = (GPART(p00) * (a * b) + GPART(p01) * (inv_a * b) + GPART(p10) * (a * inv_b) + GPART(p11) * (inv_a * inv_b) + 127) >> 8;
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uint32_t sblue = (BPART(p00) * (a * b) + BPART(p01) * (inv_a * b) + BPART(p10) * (a * inv_b) + BPART(p11) * (inv_a * inv_b) + 127) >> 8;
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uint32_t salpha = (APART(p00) * (a * b) + APART(p01) * (inv_a * b) + APART(p10) * (a * inv_b) + APART(p11) * (inv_a * inv_b) + 127) >> 8;
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return (salpha << 24) | (sred << 16) | (sgreen << 8) | sblue;
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}
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}
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template<typename ShadeModeT>
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FORCEINLINE BgraColor Shade(BgraColor fgcolor, uint32_t light, uint32_t desaturate, uint32_t inv_desaturate, BgraColor shade_fade, BgraColor shade_light, const DrawerLight *lights, int num_lights, float viewpos_x)
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{
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using namespace DrawSpan32TModes;
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BgraColor material = fgcolor;
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if (ShadeModeT::Mode == (int)ShadeMode::Simple)
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{
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fgcolor.r = (fgcolor.r * light) >> 8;
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fgcolor.g = (fgcolor.g * light) >> 8;
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fgcolor.b = (fgcolor.b * light) >> 8;
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}
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else
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{
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uint32_t intensity = ((fgcolor.r * 77 + fgcolor.g * 143 + fgcolor.b * 37) >> 8) * desaturate;
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fgcolor.r = (((shade_fade.r + ((fgcolor.r * inv_desaturate + intensity) >> 8) * light) >> 8) * shade_light.r) >> 8;
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fgcolor.g = (((shade_fade.g + ((fgcolor.g * inv_desaturate + intensity) >> 8) * light) >> 8) * shade_light.g) >> 8;
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fgcolor.b = (((shade_fade.b + ((fgcolor.b * inv_desaturate + intensity) >> 8) * light) >> 8) * shade_light.b) >> 8;
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}
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return AddLights(material, fgcolor, lights, num_lights, viewpos_x);
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}
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FORCEINLINE BgraColor AddLights(BgraColor material, BgraColor fgcolor, const DrawerLight *lights, int num_lights, float viewpos_x)
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{
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using namespace DrawSpan32TModes;
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BgraColor lit;
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lit.r = 0;
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lit.g = 0;
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lit.b = 0;
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for (int i = 0; i != num_lights; i++)
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{
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float light_x = lights[i].x;
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float light_y = lights[i].y;
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float light_z = lights[i].z;
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float light_radius = lights[i].radius;
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// L = light-pos
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// dist = sqrt(dot(L, L))
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// distance_attenuation = 1 - MIN(dist * (1/radius), 1)
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float Lyz2 = light_y; // L.y*L.y + L.z*L.z
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float Lx = light_x - viewpos_x;
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float dist2 = Lyz2 + Lx * Lx;
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float rcp_dist = _mm_cvtss_f32(_mm_rsqrt_ss(_mm_set_ss(dist2)));
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float dist = dist2 * rcp_dist;
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float distance_attenuation = 256.0f - MIN(dist * light_radius, 256.0f);
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// The simple light type
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float simple_attenuation = distance_attenuation;
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// The point light type
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// diffuse = dot(N,L) * attenuation
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float point_attenuation = light_z * rcp_dist * distance_attenuation;
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uint32_t attenuation = (int32_t)((light_z == 0.0f) ? simple_attenuation : point_attenuation);
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BgraColor light_color = lights[i].color;
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lit.r += (light_color.r * attenuation) >> 8;
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lit.g += (light_color.g * attenuation) >> 8;
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lit.b += (light_color.b * attenuation) >> 8;
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}
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fgcolor.r = MIN<uint32_t>(fgcolor.r + ((material.r * lit.r) >> 8), 255);
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fgcolor.g = MIN<uint32_t>(fgcolor.g + ((material.g * lit.g) >> 8), 255);
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fgcolor.b = MIN<uint32_t>(fgcolor.b + ((material.b * lit.b) >> 8), 255);
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return fgcolor;
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}
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FORCEINLINE BgraColor Blend(BgraColor fgcolor, BgraColor bgcolor, uint32_t srcalpha, uint32_t destalpha, unsigned int ifgcolor)
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{
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using namespace DrawSpan32TModes;
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if (BlendT::Mode == (int)SpanBlendModes::Opaque)
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{
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return fgcolor;
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}
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else if (BlendT::Mode == (int)SpanBlendModes::Masked)
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{
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return (ifgcolor == 0) ? bgcolor : fgcolor;
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}
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else if (BlendT::Mode == (int)SpanBlendModes::Translucent)
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{
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fgcolor.r = fgcolor.r * srcalpha;
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fgcolor.g = fgcolor.g * srcalpha;
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fgcolor.b = fgcolor.b * srcalpha;
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bgcolor.r = bgcolor.r * destalpha;
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bgcolor.g = bgcolor.g * destalpha;
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bgcolor.b = bgcolor.b * destalpha;
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BgraColor outcolor;
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outcolor.r = MIN<uint32_t>((fgcolor.r + bgcolor.r) >> 8, 255);
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outcolor.g = MIN<uint32_t>((fgcolor.g + bgcolor.g) >> 8, 255);
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outcolor.b = MIN<uint32_t>((fgcolor.b + bgcolor.b) >> 8, 255);
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return outcolor;
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}
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else
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{
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uint32_t alpha = APART(ifgcolor);
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alpha += alpha >> 7; // 255->256
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uint32_t inv_alpha = 256 - alpha;
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uint32_t bgalpha = (destalpha * alpha + (inv_alpha << 8) + 128) >> 8;
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uint32_t fgalpha = (srcalpha * alpha + 128) >> 8;
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fgcolor.r *= fgalpha;
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fgcolor.g *= fgalpha;
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fgcolor.b *= fgalpha;
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bgcolor.r *= bgalpha;
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bgcolor.g *= bgalpha;
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bgcolor.b *= bgalpha;
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BgraColor outcolor;
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if (BlendT::Mode == (int)SpanBlendModes::AddClamp)
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{
|
||||
outcolor.r = MIN<uint32_t>((fgcolor.r + bgcolor.r) >> 8, 255);
|
||||
outcolor.g = MIN<uint32_t>((fgcolor.g + bgcolor.g) >> 8, 255);
|
||||
outcolor.b = MIN<uint32_t>((fgcolor.b + bgcolor.b) >> 8, 255);
|
||||
}
|
||||
else if (BlendT::Mode == (int)SpanBlendModes::SubClamp)
|
||||
{
|
||||
outcolor.r = MAX(int32_t(fgcolor.r - bgcolor.r) >> 8, 0);
|
||||
outcolor.g = MAX(int32_t(fgcolor.g - bgcolor.g) >> 8, 0);
|
||||
outcolor.b = MAX(int32_t(fgcolor.b - bgcolor.b) >> 8, 0);
|
||||
}
|
||||
else if (BlendT::Mode == (int)SpanBlendModes::RevSubClamp)
|
||||
{
|
||||
outcolor.r = MAX(int32_t(bgcolor.r - fgcolor.r) >> 8, 0);
|
||||
outcolor.g = MAX(int32_t(bgcolor.g - fgcolor.g) >> 8, 0);
|
||||
outcolor.b = MAX(int32_t(bgcolor.b - fgcolor.b) >> 8, 0);
|
||||
}
|
||||
outcolor.a = 255;
|
||||
return outcolor;
|
||||
}
|
||||
}
|
||||
|
||||
FString DebugInfo() override { return "DrawSpan32T"; }
|
||||
};
|
||||
|
||||
typedef DrawSpan32T<DrawSpan32TModes::OpaqueSpan> DrawSpan32Command;
|
||||
typedef DrawSpan32T<DrawSpan32TModes::MaskedSpan> DrawSpanMasked32Command;
|
||||
typedef DrawSpan32T<DrawSpan32TModes::TranslucentSpan> DrawSpanTranslucent32Command;
|
||||
typedef DrawSpan32T<DrawSpan32TModes::AddClampSpan> DrawSpanAddClamp32Command;
|
||||
typedef DrawSpan32T<DrawSpan32TModes::SubClampSpan> DrawSpanSubClamp32Command;
|
||||
typedef DrawSpan32T<DrawSpan32TModes::RevSubClampSpan> DrawSpanRevSubClamp32Command;
|
||||
}
|
||||
Loading…
Reference in a new issue