mirror of
https://github.com/ZDoom/raze-gles.git
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cc332486b4
With the new backend there will always be just one page, never more, so the RS_PERMS case will never be entered. In addition, since the software renderer has already been nonfunctional due to lacking support from the 2D drawer, its 2D components have also been removed. Its main remaining purpose, drawing camera textures, remains unaffected by this.
610 lines
17 KiB
C++
610 lines
17 KiB
C++
//
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//---------------------------------------------------------------------------
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//
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// Copyright(C) 2016-2018 Christoph Oelckers
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// All rights reserved.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with this program. If not, see http://www.gnu.org/licenses/
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//
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//--------------------------------------------------------------------------
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//
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/*
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** v_2ddrawer.h
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** Device independent 2D draw list
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**
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**/
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#include <stdarg.h>
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#include "c_cvars.h"
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#include "v_2ddrawer.h"
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#include "renderstyle.h"
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#include "drawparms.h"
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#include "vectors.h"
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#include "gamecvars.h"
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//#include "doomtype.h"
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#include "templates.h"
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//#include "r_utility.h"
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//#include "v_video.h"
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//#include "g_levellocals.h"
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//#include "vm.h"
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F2DDrawer twod;
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//==========================================================================
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//
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//
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//
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//==========================================================================
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int F2DDrawer::AddCommand(const RenderCommand *data)
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{
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if (mData.Size() > 0 && data->isCompatible(mData.Last()))
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{
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// Merge with the last command.
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mData.Last().mIndexCount += data->mIndexCount;
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mData.Last().mVertCount += data->mVertCount;
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return mData.Size();
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}
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else
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{
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return mData.Push(*data);
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}
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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void F2DDrawer::AddIndices(int firstvert, int count, ...)
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{
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va_list ap;
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va_start(ap, count);
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int addr = mIndices.Reserve(count);
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for (int i = 0; i < count; i++)
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{
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mIndices[addr + i] = firstvert + va_arg(ap, int);
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}
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}
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//==========================================================================
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//
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// SetStyle
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//
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// Patterned after R_SetPatchStyle.
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//
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//==========================================================================
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bool F2DDrawer::SetStyle(FTexture *tex, DrawParms &parms, PalEntry &vertexcolor, RenderCommand &quad)
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{
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FRenderStyle style = parms.style;
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float alpha;
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bool stencilling;
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if (style.Flags & STYLEF_Alpha1)
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{
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alpha = 1;
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}
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else
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{
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alpha = clamp(parms.Alpha, 0.f, 1.f);
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}
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style.CheckFuzz();
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if (style.BlendOp == STYLEOP_Shadow || style.BlendOp == STYLEOP_Fuzz)
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{
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style = LegacyRenderStyles[STYLE_TranslucentStencil];
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alpha = 0.3f;
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parms.fillcolor = 0;
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}
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else if (style.BlendOp == STYLEOP_FuzzOrAdd)
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{
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style.BlendOp = STYLEOP_Add;
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}
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else if (style.BlendOp == STYLEOP_FuzzOrSub)
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{
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style.BlendOp = STYLEOP_Sub;
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}
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else if (style.BlendOp == STYLEOP_FuzzOrRevSub)
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{
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style.BlendOp = STYLEOP_RevSub;
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}
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stencilling = false;
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if (style.Flags & STYLEF_InvertOverlay)
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{
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// Only the overlay color is inverted, not the overlay alpha.
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parms.colorOverlay.r = 255 - parms.colorOverlay.r;
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parms.colorOverlay.g = 255 - parms.colorOverlay.g;
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parms.colorOverlay.b = 255 - parms.colorOverlay.b;
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}
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SetColorOverlay(parms.colorOverlay, alpha, vertexcolor, quad.mColor1);
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if (style.Flags & STYLEF_ColorIsFixed)
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{
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if (style.Flags & STYLEF_InvertSource)
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{ // Since the source color is a constant, we can invert it now
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// without spending time doing it in the shader.
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parms.fillcolor.r = 255 - parms.fillcolor.r;
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parms.fillcolor.g = 255 - parms.fillcolor.g;
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parms.fillcolor.b = 255 - parms.fillcolor.b;
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style.Flags &= ~STYLEF_InvertSource;
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}
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if (parms.desaturate > 0)
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{
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// Desaturation can also be computed here without having to do it in the shader.
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auto gray = parms.fillcolor.Luminance();
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auto notgray = 255 - gray;
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parms.fillcolor.r = uint8_t((parms.fillcolor.r * notgray + gray * 255) / 255);
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parms.fillcolor.g = uint8_t((parms.fillcolor.g * notgray + gray * 255) / 255);
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parms.fillcolor.b = uint8_t((parms.fillcolor.b * notgray + gray * 255) / 255);
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parms.desaturate = 0;
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}
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// Set up the color mod to replace the color from the image data.
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vertexcolor.r = parms.fillcolor.r;
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vertexcolor.g = parms.fillcolor.g;
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vertexcolor.b = parms.fillcolor.b;
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if (style.Flags & STYLEF_RedIsAlpha)
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{
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quad.mDrawMode = TM_ALPHATEXTURE;
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}
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else
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{
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quad.mDrawMode = TM_STENCIL;
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}
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}
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else
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{
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if (style.Flags & STYLEF_RedIsAlpha)
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{
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quad.mDrawMode = TM_ALPHATEXTURE;
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}
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else if (style.Flags & STYLEF_InvertSource)
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{
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quad.mDrawMode = TM_INVERSE;
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}
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quad.mDesaturate = parms.desaturate;
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}
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// apply the element's own color. This is being blended with anything that came before.
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vertexcolor = PalEntry((vertexcolor.a * parms.color.a) / 255, (vertexcolor.r * parms.color.r) / 255, (vertexcolor.g * parms.color.g) / 255, (vertexcolor.b * parms.color.b) / 255);
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if (!parms.masked)
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{
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// For TM_ALPHATEXTURE and TM_STENCIL the mask cannot be turned off because it would not yield a usable result.
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if (quad.mDrawMode == TM_NORMAL) quad.mDrawMode = TM_OPAQUE;
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else if (quad.mDrawMode == TM_INVERSE) quad.mDrawMode = TM_INVERTOPAQUE;
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}
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quad.mRenderStyle = parms.style; // this contains the blend mode and blend equation settings.
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if (parms.burn) quad.mFlags |= DTF_Burn;
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return true;
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}
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//==========================================================================
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//
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// Draws a texture
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//
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//==========================================================================
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void F2DDrawer::SetColorOverlay(PalEntry color, float alpha, PalEntry &vertexcolor, PalEntry &overlaycolor)
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{
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if (color.a != 0 && (color & 0xffffff) != 0)
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{
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// overlay color uses premultiplied alpha.
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int a = color.a * 256 / 255;
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overlaycolor.r = (color.r * a) >> 8;
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overlaycolor.g = (color.g * a) >> 8;
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overlaycolor.b = (color.b * a) >> 8;
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overlaycolor.a = 0; // The overlay gets added on top of the texture data so to preserve the pixel's alpha this must be 0.
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}
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else
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{
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overlaycolor = 0;
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}
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// Vertex intensity is the inverse of the overlay so that the shader can do a simple addition to combine them.
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uint8_t light = 255 - color.a;
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vertexcolor = PalEntry(int(alpha * 255), light, light, light);
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// The real color gets multiplied into vertexcolor later.
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}
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//==========================================================================
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//
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// Draws a texture
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//
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//==========================================================================
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void F2DDrawer::AddTexture(FTexture *img, DrawParms &parms)
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{
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if (parms.style.BlendOp == STYLEOP_None) return; // not supposed to be drawn.
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double xscale = parms.destwidth / parms.texwidth;
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double yscale = parms.destheight / parms.texheight;
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double x = parms.x - parms.left * xscale;
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double y = parms.y - parms.top * yscale;
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double w = parms.destwidth;
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double h = parms.destheight;
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double u1, v1, u2, v2;
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PalEntry vertexcolor;
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RenderCommand dg;
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dg.mType = DrawTypeTriangles;
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dg.mVertCount = 4;
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dg.mTexture = img;
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dg.mRemapIndex = parms.remap;
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SetStyle(img, parms, vertexcolor, dg);
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u1 = parms.srcx;
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v1 = parms.srcy;
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u2 = parms.srcx + parms.srcwidth;
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v2 = parms.srcy + parms.srcheight;
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if (parms.flipX)
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std::swap(u1, u2);
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if (parms.flipY)
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std::swap(v1, v2);
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// This is crap. Only kept for backwards compatibility with scripts that may have used it.
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// Note that this only works for unflipped full textures.
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if (parms.windowleft > 0 || parms.windowright < parms.texwidth)
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{
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double wi = std::min(parms.windowright, parms.texwidth);
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x += parms.windowleft * xscale;
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w -= (parms.texwidth - wi + parms.windowleft) * xscale;
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u1 = float(u1 + parms.windowleft / parms.texwidth);
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u2 = float(u2 - (parms.texwidth - wi) / parms.texwidth);
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}
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if (x < (double)parms.lclip || y < (double)parms.uclip || x + w >(double)parms.rclip || y + h >(double)parms.dclip)
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{
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dg.mScissor[0] = parms.lclip;
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dg.mScissor[1] = parms.uclip;
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dg.mScissor[2] = parms.rclip;
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dg.mScissor[3] = parms.dclip;
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dg.mFlags |= DTF_Scissor;
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}
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else
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{
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memset(dg.mScissor, 0, sizeof(dg.mScissor));
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}
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dg.mVertCount = 4;
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dg.mVertIndex = (int)mVertices.Reserve(4);
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TwoDVertex *ptr = &mVertices[dg.mVertIndex];
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ptr->Set(x, y, 0, u1, v1, vertexcolor); ptr++;
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ptr->Set(x, y + h, 0, u1, v2, vertexcolor); ptr++;
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ptr->Set(x + w, y, 0, u2, v1, vertexcolor); ptr++;
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ptr->Set(x + w, y + h, 0, u2, v2, vertexcolor); ptr++;
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dg.mIndexIndex = mIndices.Size();
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dg.mIndexCount += 6;
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AddIndices(dg.mVertIndex, 6, 0, 1, 2, 1, 3, 2);
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AddCommand(&dg);
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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void F2DDrawer::AddPoly(FTexture *texture, FVector2 *points, int npoints,
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double originx, double originy, double scalex, double scaley,
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DAngle rotation, int colormap, PalEntry flatcolor, int lightlevel,
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uint32_t *indices, size_t indexcount)
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{
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// Use an equation similar to player sprites to determine shade
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// Convert a light level into an unbounded colormap index (shade).
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// Why the +12? I wish I knew, but experimentation indicates it
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// is necessary in order to best reproduce Doom's original lighting.
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double fadelevel;
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// The hardware renderer's light modes 0, 1 and 4 use a linear light scale which must be used here as well. Otherwise the automap gets too dark.
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fadelevel = 1. - clamp(lightlevel, 0, 255) / 255.f;
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RenderCommand poly;
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poly.mType = DrawTypeTriangles;
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poly.mTexture = texture;
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poly.mRenderStyle = DefaultRenderStyle();
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poly.mFlags |= DTF_Wrap;
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poly.mDesaturate = 0;
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PalEntry color0;
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double invfade = 1. - fadelevel;
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color0.r = uint8_t(flatcolor.r * invfade);
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color0.g = uint8_t(flatcolor.g * invfade);
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color0.b = uint8_t(flatcolor.b * invfade);
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color0.a = 255;
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poly.mColor1 = 0;
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bool dorotate = rotation != 0;
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float cosrot = (float)cos(rotation.Radians());
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float sinrot = (float)sin(rotation.Radians());
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float uscale = float(1.f / (texture->GetWidth() * scalex));
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float vscale = float(1.f / (texture->GetHeight() * scaley));
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float ox = float(originx);
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float oy = float(originy);
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poly.mVertCount = npoints;
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poly.mVertIndex = (int)mVertices.Reserve(npoints);
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for (int i = 0; i < npoints; ++i)
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{
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float u = points[i].X - 0.5f - ox;
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float v = points[i].Y - 0.5f - oy;
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if (dorotate)
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{
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float t = u;
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u = t * cosrot - v * sinrot;
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v = v * cosrot + t * sinrot;
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}
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mVertices[poly.mVertIndex+i].Set(points[i].X, points[i].Y, 0, u*uscale, v*vscale, color0);
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}
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poly.mIndexIndex = mIndices.Size();
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if (indices == nullptr || indexcount == 0)
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{
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poly.mIndexCount += (npoints - 2) * 3;
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for (int i = 2; i < npoints; ++i)
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{
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AddIndices(poly.mVertIndex, 3, 0, i - 1, i);
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}
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}
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else
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{
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poly.mIndexCount += (int)indexcount;
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int addr = mIndices.Reserve(indexcount);
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for (size_t i = 0; i < indexcount; i++)
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{
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mIndices[addr + i] = poly.mVertIndex + indices[i];
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}
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}
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AddCommand(&poly);
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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void F2DDrawer::AddFlatFill(int left, int top, int right, int bottom, FTexture *src, bool local_origin)
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{
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float fU1, fU2, fV1, fV2;
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RenderCommand dg;
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dg.mType = DrawTypeTriangles;
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dg.mRenderStyle = DefaultRenderStyle();
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dg.mTexture = src;
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dg.mVertCount = 4;
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dg.mTexture = src;
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dg.mFlags = DTF_Wrap;
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// scaling is not used here.
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if (!local_origin)
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{
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fU1 = float(left) / src->GetWidth();
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fV1 = float(top) / src->GetHeight();
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fU2 = float(right) / src->GetWidth();
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fV2 = float(bottom) / src->GetHeight();
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}
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else
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{
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fU1 = 0;
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fV1 = 0;
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fU2 = float(right - left) / src->GetWidth();
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fV2 = float(bottom - top) / src->GetHeight();
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}
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dg.mVertIndex = (int)mVertices.Reserve(4);
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auto ptr = &mVertices[dg.mVertIndex];
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ptr->Set(left, top, 0, fU1, fV1, 0xffffffff); ptr++;
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ptr->Set(left, bottom, 0, fU1, fV2, 0xffffffff); ptr++;
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ptr->Set(right, top, 0, fU2, fV1, 0xffffffff); ptr++;
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ptr->Set(right, bottom, 0, fU2, fV2, 0xffffffff); ptr++;
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dg.mIndexIndex = mIndices.Size();
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dg.mIndexCount += 6;
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AddIndices(dg.mVertIndex, 6, 0, 1, 2, 1, 3, 2);
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AddCommand(&dg);
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}
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//===========================================================================
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//
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//
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//
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//===========================================================================
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void F2DDrawer::AddColorOnlyQuad(int x1, int y1, int w, int h, PalEntry color, FRenderStyle *style)
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{
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RenderCommand dg;
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dg.mType = DrawTypeTriangles;
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dg.mVertCount = 4;
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dg.mVertIndex = (int)mVertices.Reserve(4);
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dg.mRenderStyle = style? *style : LegacyRenderStyles[STYLE_Translucent];
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auto ptr = &mVertices[dg.mVertIndex];
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ptr->Set(x1, y1, 0, 0, 0, color); ptr++;
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ptr->Set(x1, y1 + h, 0, 0, 0, color); ptr++;
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ptr->Set(x1 + w, y1, 0, 0, 0, color); ptr++;
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ptr->Set(x1 + w, y1 + h, 0, 0, 0, color); ptr++;
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dg.mIndexIndex = mIndices.Size();
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dg.mIndexCount += 6;
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AddIndices(dg.mVertIndex, 6, 0, 1, 2, 1, 3, 2);
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AddCommand(&dg);
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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void F2DDrawer::AddLine(int x1, int y1, int x2, int y2, uint32_t color, uint8_t alpha)
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{
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PalEntry p = (PalEntry)color;
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p.a = alpha;
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RenderCommand dg;
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dg.mType = DrawTypeLines;
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dg.mRenderStyle = LegacyRenderStyles[STYLE_Translucent];
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dg.mVertCount = 2;
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dg.mVertIndex = (int)mVertices.Reserve(2);
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mVertices[dg.mVertIndex].Set(x1, y1, 0, 0, 0, p);
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mVertices[dg.mVertIndex+1].Set(x2, y2, 0, 0, 0, p);
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AddCommand(&dg);
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}
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//==========================================================================
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//
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//
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//
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//==========================================================================
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void F2DDrawer::AddThickLine(int x1, int y1, int x2, int y2, double thickness, uint32_t color, uint8_t alpha)
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{
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|
PalEntry p = (PalEntry)color;
|
|
p.a = alpha;
|
|
|
|
DVector2 point0(x1, y1);
|
|
DVector2 point1(x2, y2);
|
|
|
|
DVector2 delta = point1 - point0;
|
|
DVector2 perp(-delta.Y, delta.X);
|
|
perp.MakeUnit();
|
|
perp *= thickness / 2;
|
|
|
|
DVector2 corner0 = point0 + perp;
|
|
DVector2 corner1 = point0 - perp;
|
|
DVector2 corner2 = point1 + perp;
|
|
DVector2 corner3 = point1 - perp;
|
|
|
|
RenderCommand dg;
|
|
|
|
dg.mType = DrawTypeTriangles;
|
|
dg.mVertCount = 4;
|
|
dg.mVertIndex = (int)mVertices.Reserve(4);
|
|
dg.mRenderStyle = LegacyRenderStyles[STYLE_Translucent];
|
|
auto ptr = &mVertices[dg.mVertIndex];
|
|
ptr->Set(corner0.X, corner0.Y, 0, 0, 0, p); ptr++;
|
|
ptr->Set(corner1.X, corner1.Y, 0, 0, 0, p); ptr++;
|
|
ptr->Set(corner2.X, corner2.Y, 0, 0, 0, p); ptr++;
|
|
ptr->Set(corner3.X, corner3.Y, 0, 0, 0, p); ptr++;
|
|
dg.mIndexIndex = mIndices.Size();
|
|
dg.mIndexCount += 6;
|
|
AddIndices(dg.mVertIndex, 6, 0, 1, 2, 1, 3, 2);
|
|
AddCommand(&dg);
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
void F2DDrawer::AddPixel(int x1, int y1, uint32_t color)
|
|
{
|
|
PalEntry p = (PalEntry)color;
|
|
p.a = 255;
|
|
|
|
RenderCommand dg;
|
|
|
|
dg.mType = DrawTypePoints;
|
|
dg.mRenderStyle = LegacyRenderStyles[STYLE_Translucent];
|
|
dg.mVertCount = 1;
|
|
dg.mVertIndex = (int)mVertices.Reserve(1);
|
|
mVertices[dg.mVertIndex].Set(x1, y1, 0, 0, 0, p);
|
|
AddCommand(&dg);
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
void F2DDrawer::Clear()
|
|
{
|
|
mVertices.Clear();
|
|
mIndices.Clear();
|
|
mData.Clear();
|
|
mIsFirstPass = true;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
//
|
|
//
|
|
//==========================================================================
|
|
|
|
|
|
#include "build.h"
|
|
#include "../src/engine_priv.h"
|
|
|
|
//sx,sy center of sprite; screen coords*65536
|
|
//z zoom*65536. > is zoomed in
|
|
//a angle (0 is default)
|
|
//dastat&1 1:translucence
|
|
//dastat&2 1:auto-scale mode (use 320*200 coordinates)
|
|
//dastat&4 1:y-flip
|
|
//dastat&8 1:don't clip to startumost/startdmost
|
|
//dastat&16 1:force point passed to be top-left corner, 0:Editart center
|
|
//dastat&32 1:reverse translucence
|
|
//dastat&64 1:non-masked, 0:masked
|
|
//dastat&128 1:draw all pages (permanent - no longer used)
|
|
//cx1,... clip window (actual screen coords)
|
|
|
|
void F2DDrawer::rotatesprite(int32_t sx, int32_t sy, int32_t z, int16_t a, int16_t picnum,
|
|
int8_t dashade, uint8_t dapalnum, int32_t dastat, uint8_t daalpha, uint8_t dablend,
|
|
int32_t cx1, int32_t cy1, int32_t cx2, int32_t cy2)
|
|
{
|
|
// This is mainly a hack because the rotatesprite code is far too messed up to integrate into the 2D drawer.
|
|
// This merely stores the parameters and later just calls polymost_rotatesprite do do the work.
|
|
// Cleanup can be done once everything is working.
|
|
RenderCommand dg;
|
|
|
|
dg.mType = DrawTypeRotateSprite;
|
|
|
|
// Just store the values in the otherwise useless fields of the draw command instead of allocating separate memory.
|
|
dg.mVertIndex = sx;
|
|
dg.mVertCount = sy;
|
|
dg.mIndexIndex = z;
|
|
dg.mIndexCount = a;
|
|
dg.mSpecialColormap[0].d = picnum;
|
|
dg.mRemapIndex = dashade;
|
|
dg.mFlags = dapalnum;
|
|
dg.mSpecialColormap[1].d = dastat;
|
|
dg.mDesaturate = daalpha;
|
|
dg.mColor1.d = dablend;
|
|
dg.mScissor[0] = cx1;
|
|
dg.mScissor[1] = cy1;
|
|
dg.mScissor[2] = cx2;
|
|
dg.mScissor[3] = cy2;
|
|
mData.Push(dg); // don't even try to merge.
|
|
}
|
|
|