9a24771a7d
This has increasingly become an obstacle with the hardware renderer, so now the values are being stored as plain data in the sector, with the software renderer getting the actual color tables when needed. While this is a bit slower than storing the pregenerated colormap, in realistic situations the added time is mostly negligible in the microseconds range.
120 lines
3.8 KiB
C++
120 lines
3.8 KiB
C++
/*
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** Particle drawing
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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 <stdlib.h>
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#include "templates.h"
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#include "doomdef.h"
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#include "sbar.h"
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#include "r_data/r_translate.h"
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#include "poly_particle.h"
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#include "polyrenderer/poly_renderer.h"
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#include "swrenderer/scene/r_light.h"
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void RenderPolyParticle::Render(const TriMatrix &worldToClip, const Vec4f &clipPlane, particle_t *particle, subsector_t *sub, uint32_t subsectorDepth, uint32_t stencilValue)
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{
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DVector3 pos = particle->Pos;
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double psize = particle->size / 8.0;
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double zpos = pos.Z;
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const auto &viewpoint = PolyRenderer::Instance()->Thread.Viewport->viewpoint;
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DVector2 points[2] =
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{
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{ pos.X - viewpoint.Sin * psize, pos.Y + viewpoint.Cos * psize },
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{ pos.X + viewpoint.Sin * psize, pos.Y - viewpoint.Cos * psize }
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};
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TriVertex *vertices = PolyVertexBuffer::GetVertices(4);
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if (!vertices)
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return;
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bool foggy = false;
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int actualextralight = foggy ? 0 : viewpoint.extralight << 4;
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std::pair<float, float> offsets[4] =
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{
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{ 0.0f, 1.0f },
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{ 1.0f, 1.0f },
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{ 1.0f, 0.0f },
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{ 0.0f, 0.0f },
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};
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for (int i = 0; i < 4; i++)
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{
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auto &p = (i == 0 || i == 3) ? points[0] : points[1];
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vertices[i].x = (float)p.X;
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vertices[i].y = (float)p.Y;
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vertices[i].z = (float)(zpos + psize * (2.0 * offsets[i].second - 1.0));
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vertices[i].w = 1.0f;
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vertices[i].varying[0] = (float)(offsets[i].first);
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vertices[i].varying[1] = (float)(1.0f - offsets[i].second);
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}
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// int color = (particle->color >> 24) & 0xff; // pal index, I think
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bool fullbrightSprite = particle->bright != 0;
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swrenderer::CameraLight *cameraLight = swrenderer::CameraLight::Instance();
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PolyDrawArgs args;
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args.uniforms.globvis = (float)PolyRenderer::Instance()->Thread.Light->ParticleGlobVis(foggy);
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if (fullbrightSprite || cameraLight->FixedLightLevel() >= 0 || cameraLight->FixedColormap())
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{
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args.uniforms.light = 256;
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args.uniforms.flags = TriUniforms::fixed_light;
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}
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else
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{
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args.uniforms.light = (uint32_t)((sub->sector->lightlevel + actualextralight) / 255.0f * 256.0f);
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args.uniforms.flags = 0;
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}
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args.uniforms.subsectorDepth = subsectorDepth;
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uint32_t alpha = (uint32_t)clamp(particle->alpha * 255.0f + 0.5f, 0.0f, 255.0f);
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if (PolyRenderer::Instance()->Thread.Viewport->RenderTarget->IsBgra())
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{
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args.uniforms.color = (alpha << 24) | (particle->color & 0xffffff);
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}
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else
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{
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args.uniforms.color = ((uint32_t)particle->color) >> 24;
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args.uniforms.srcalpha = alpha;
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args.uniforms.destalpha = 255 - alpha;
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}
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args.objectToClip = &worldToClip;
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args.vinput = vertices;
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args.vcount = 4;
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args.mode = TriangleDrawMode::Fan;
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args.ccw = true;
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args.stenciltestvalue = stencilValue;
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args.stencilwritevalue = stencilValue;
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args.SetColormap(GetColorTable(sub->sector->Colormap));
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args.SetClipPlane(clipPlane.x, clipPlane.y, clipPlane.z, clipPlane.w);
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args.subsectorTest = true;
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args.writeStencil = false;
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args.writeSubsector = false;
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args.blendmode = TriBlendMode::AlphaBlend;
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PolyTriangleDrawer::draw(args);
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}
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