gzdoom/src/r_draw_rgba.cpp

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// Emacs style mode select -*- C++ -*-
//-----------------------------------------------------------------------------
//
// $Id:$
//
// Copyright (C) 1993-1996 by id Software, Inc.
//
// This source is available for distribution and/or modification
// only under the terms of the DOOM Source Code License as
// published by id Software. All rights reserved.
//
// The source is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License
// for more details.
//
// $Log:$
//
// DESCRIPTION:
// True color span/column drawing functions.
//
//-----------------------------------------------------------------------------
#include <stddef.h>
#include "templates.h"
#include "doomdef.h"
#include "i_system.h"
#include "w_wad.h"
#include "r_local.h"
#include "v_video.h"
#include "doomstat.h"
#include "st_stuff.h"
#include "g_game.h"
#include "g_level.h"
#include "r_data/r_translate.h"
#include "v_palette.h"
#include "r_data/colormaps.h"
#include "r_plane.h"
#include "r_draw_rgba.h"
#include "r_compiler/llvmdrawers.h"
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#include "gl/data/gl_matrix.h"
#include "gi.h"
#include "stats.h"
#include "x86.h"
#include <vector>
extern "C" short spanend[MAXHEIGHT];
extern float rw_light;
extern float rw_lightstep;
extern int wallshade;
// Use linear filtering when scaling up
CVAR(Bool, r_magfilter, false, CVAR_ARCHIVE | CVAR_GLOBALCONFIG);
// Use linear filtering when scaling down
CVAR(Bool, r_minfilter, true, CVAR_ARCHIVE | CVAR_GLOBALCONFIG);
// Use mipmapped textures
CVAR(Bool, r_mipmap, true, CVAR_ARCHIVE | CVAR_GLOBALCONFIG);
// Level of detail texture bias
CVAR(Float, r_lod_bias, -1.5, 0); // To do: add CVAR_ARCHIVE | CVAR_GLOBALCONFIG when a good default has been decided
/////////////////////////////////////////////////////////////////////////////
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class DrawSpanLLVMCommand : public DrawerCommand
{
public:
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DrawSpanLLVMCommand()
{
args.xfrac = ds_xfrac;
args.yfrac = ds_yfrac;
args.xstep = ds_xstep;
args.ystep = ds_ystep;
args.x1 = ds_x1;
args.x2 = ds_x2;
args.y = ds_y;
args.xbits = ds_xbits;
args.ybits = ds_ybits;
args.destorg = (uint32_t*)dc_destorg;
args.destpitch = dc_pitch;
args.source = (const uint32_t*)ds_source;
args.light = LightBgra::calc_light_multiplier(ds_light);
args.light_red = ds_shade_constants.light_red;
args.light_green = ds_shade_constants.light_green;
args.light_blue = ds_shade_constants.light_blue;
args.light_alpha = ds_shade_constants.light_alpha;
args.fade_red = ds_shade_constants.fade_red;
args.fade_green = ds_shade_constants.fade_green;
args.fade_blue = ds_shade_constants.fade_blue;
args.fade_alpha = ds_shade_constants.fade_alpha;
args.desaturate = ds_shade_constants.desaturate;
args.srcalpha = dc_srcalpha >> (FRACBITS - 8);
args.destalpha = dc_destalpha >> (FRACBITS - 8);
args.flags = 0;
if (ds_shade_constants.simple_shade)
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args.flags |= DrawSpanArgs::simple_shade;
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if (!sampler_setup(args.source, args.xbits, args.ybits, ds_source_mipmapped))
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args.flags |= DrawSpanArgs::nearest_filter;
}
void Execute(DrawerThread *thread) override
{
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if (thread->skipped_by_thread(args.y))
return;
LLVMDrawers::Instance()->DrawSpan(&args);
}
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FString DebugInfo() override
{
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return "DrawSpan\n" + args.ToString();
}
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protected:
DrawSpanArgs args;
private:
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inline static bool sampler_setup(const uint32_t * &source, int &xbits, int &ybits, bool mipmapped)
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{
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bool magnifying = ds_lod < 0.0f;
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if (r_mipmap && mipmapped)
{
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int level = (int)ds_lod;
while (level > 0)
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{
if (xbits <= 2 || ybits <= 2)
break;
source += (1 << (xbits)) * (1 << (ybits));
xbits -= 1;
ybits -= 1;
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level--;
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}
}
return (magnifying && r_magfilter) || (!magnifying && r_minfilter);
}
};
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class DrawSpanMaskedLLVMCommand : public DrawSpanLLVMCommand
{
public:
void Execute(DrawerThread *thread) override
{
if (thread->skipped_by_thread(args.y))
return;
LLVMDrawers::Instance()->DrawSpanMasked(&args);
}
};
class DrawSpanTranslucentLLVMCommand : public DrawSpanLLVMCommand
{
public:
void Execute(DrawerThread *thread) override
{
if (thread->skipped_by_thread(args.y))
return;
LLVMDrawers::Instance()->DrawSpanTranslucent(&args);
}
};
class DrawSpanMaskedTranslucentLLVMCommand : public DrawSpanLLVMCommand
{
public:
void Execute(DrawerThread *thread) override
{
if (thread->skipped_by_thread(args.y))
return;
LLVMDrawers::Instance()->DrawSpanMaskedTranslucent(&args);
}
};
class DrawSpanAddClampLLVMCommand : public DrawSpanLLVMCommand
{
public:
void Execute(DrawerThread *thread) override
{
if (thread->skipped_by_thread(args.y))
return;
LLVMDrawers::Instance()->DrawSpanAddClamp(&args);
}
};
class DrawSpanMaskedAddClampLLVMCommand : public DrawSpanLLVMCommand
{
public:
void Execute(DrawerThread *thread) override
{
if (thread->skipped_by_thread(args.y))
return;
LLVMDrawers::Instance()->DrawSpanMaskedAddClamp(&args);
}
};
/////////////////////////////////////////////////////////////////////////////
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class DrawWall4LLVMCommand : public DrawerCommand
{
protected:
DrawWallArgs args;
WorkerThreadData ThreadData(DrawerThread *thread)
{
WorkerThreadData d;
d.core = thread->core;
d.num_cores = thread->num_cores;
d.pass_start_y = thread->pass_start_y;
d.pass_end_y = thread->pass_end_y;
return d;
}
public:
DrawWall4LLVMCommand()
{
args.dest = (uint32_t*)dc_dest;
args.dest_y = _dest_y;
args.count = dc_count;
args.pitch = dc_pitch;
args.light_red = dc_shade_constants.light_red;
args.light_green = dc_shade_constants.light_green;
args.light_blue = dc_shade_constants.light_blue;
args.light_alpha = dc_shade_constants.light_alpha;
args.fade_red = dc_shade_constants.fade_red;
args.fade_green = dc_shade_constants.fade_green;
args.fade_blue = dc_shade_constants.fade_blue;
args.fade_alpha = dc_shade_constants.fade_alpha;
args.desaturate = dc_shade_constants.desaturate;
for (int i = 0; i < 4; i++)
{
args.texturefrac[i] = vplce[i];
args.iscale[i] = vince[i];
args.texturefracx[i] = buftexturefracx[i];
args.textureheight[i] = bufheight[i];
args.source[i] = (const uint32_t *)bufplce[i];
args.source2[i] = (const uint32_t *)bufplce2[i];
args.light[i] = LightBgra::calc_light_multiplier(palookuplight[i]);
}
args.srcalpha = dc_srcalpha >> (FRACBITS - 8);
args.destalpha = dc_destalpha >> (FRACBITS - 8);
args.flags = 0;
if (dc_shade_constants.simple_shade)
args.flags |= DrawWallArgs::simple_shade;
if (args.source2[0] == nullptr)
args.flags |= DrawWallArgs::nearest_filter;
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DetectRangeError(args.dest, args.dest_y, args.count);
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}
void Execute(DrawerThread *thread) override
{
WorkerThreadData d = ThreadData(thread);
LLVMDrawers::Instance()->vlinec4(&args, &d);
}
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FString DebugInfo() override
{
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return "DrawWall4\n" + args.ToString();
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}
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};
class DrawWall1LLVMCommand : public DrawerCommand
{
protected:
DrawWallArgs args;
WorkerThreadData ThreadData(DrawerThread *thread)
{
WorkerThreadData d;
d.core = thread->core;
d.num_cores = thread->num_cores;
d.pass_start_y = thread->pass_start_y;
d.pass_end_y = thread->pass_end_y;
return d;
}
public:
DrawWall1LLVMCommand()
{
args.dest = (uint32_t*)dc_dest;
args.dest_y = _dest_y;
args.pitch = dc_pitch;
args.count = dc_count;
args.texturefrac[0] = dc_texturefrac;
args.texturefracx[0] = dc_texturefracx;
args.iscale[0] = dc_iscale;
args.textureheight[0] = dc_textureheight;
args.source[0] = (const uint32 *)dc_source;
args.source2[0] = (const uint32 *)dc_source2;
args.light[0] = LightBgra::calc_light_multiplier(dc_light);
args.light_red = dc_shade_constants.light_red;
args.light_green = dc_shade_constants.light_green;
args.light_blue = dc_shade_constants.light_blue;
args.light_alpha = dc_shade_constants.light_alpha;
args.fade_red = dc_shade_constants.fade_red;
args.fade_green = dc_shade_constants.fade_green;
args.fade_blue = dc_shade_constants.fade_blue;
args.fade_alpha = dc_shade_constants.fade_alpha;
args.desaturate = dc_shade_constants.desaturate;
args.srcalpha = dc_srcalpha >> (FRACBITS - 8);
args.destalpha = dc_destalpha >> (FRACBITS - 8);
args.flags = 0;
if (dc_shade_constants.simple_shade)
args.flags |= DrawWallArgs::simple_shade;
if (args.source2[0] == nullptr)
args.flags |= DrawWallArgs::nearest_filter;
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DetectRangeError(args.dest, args.dest_y, args.count);
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}
void Execute(DrawerThread *thread) override
{
WorkerThreadData d = ThreadData(thread);
LLVMDrawers::Instance()->vlinec1(&args, &d);
}
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FString DebugInfo() override
{
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return "DrawWall1\n" + args.ToString();
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}
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};
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class DrawColumnLLVMCommand : public DrawerCommand
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{
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protected:
DrawColumnArgs args;
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WorkerThreadData ThreadData(DrawerThread *thread)
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{
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WorkerThreadData d;
d.core = thread->core;
d.num_cores = thread->num_cores;
d.pass_start_y = thread->pass_start_y;
d.pass_end_y = thread->pass_end_y;
return d;
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}
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FString DebugInfo() override
{
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return "DrawColumn\n" + args.ToString();
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}
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public:
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DrawColumnLLVMCommand()
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{
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args.dest = (uint32_t*)dc_dest;
args.source = dc_source;
args.source2 = dc_source2;
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args.colormap = dc_colormap;
args.translation = dc_translation;
args.basecolors = (const uint32_t *)GPalette.BaseColors;
args.pitch = dc_pitch;
args.count = dc_count;
args.dest_y = _dest_y;
args.iscale = dc_iscale;
args.texturefracx = dc_texturefracx;
args.textureheight = dc_textureheight;
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args.texturefrac = dc_texturefrac;
args.light = LightBgra::calc_light_multiplier(dc_light);
args.color = LightBgra::shade_pal_index_simple(dc_color, args.light);
args.srccolor = dc_srccolor_bgra;
args.srcalpha = dc_srcalpha >> (FRACBITS - 8);
args.destalpha = dc_destalpha >> (FRACBITS - 8);
args.light_red = dc_shade_constants.light_red;
args.light_green = dc_shade_constants.light_green;
args.light_blue = dc_shade_constants.light_blue;
args.light_alpha = dc_shade_constants.light_alpha;
args.fade_red = dc_shade_constants.fade_red;
args.fade_green = dc_shade_constants.fade_green;
args.fade_blue = dc_shade_constants.fade_blue;
args.fade_alpha = dc_shade_constants.fade_alpha;
args.desaturate = dc_shade_constants.desaturate;
args.flags = 0;
if (dc_shade_constants.simple_shade)
args.flags |= DrawColumnArgs::simple_shade;
if (args.source2 == nullptr)
args.flags |= DrawColumnArgs::nearest_filter;
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DetectRangeError(args.dest, args.dest_y, args.count);
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}
void Execute(DrawerThread *thread) override
{
WorkerThreadData d = ThreadData(thread);
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LLVMDrawers::Instance()->DrawColumn(&args, &d);
}
};
class DrawSkyLLVMCommand : public DrawerCommand
{
protected:
DrawSkyArgs args;
WorkerThreadData ThreadData(DrawerThread *thread)
{
WorkerThreadData d;
d.core = thread->core;
d.num_cores = thread->num_cores;
d.pass_start_y = thread->pass_start_y;
d.pass_end_y = thread->pass_end_y;
return d;
}
public:
DrawSkyLLVMCommand(uint32_t solid_top, uint32_t solid_bottom)
{
args.dest = (uint32_t*)dc_dest;
args.dest_y = _dest_y;
args.count = dc_count;
args.pitch = dc_pitch;
for (int i = 0; i < 4; i++)
{
args.texturefrac[i] = vplce[i];
args.iscale[i] = vince[i];
args.source0[i] = (const uint32_t *)bufplce[i];
args.source1[i] = (const uint32_t *)bufplce2[i];
}
args.textureheight0 = bufheight[0];
args.textureheight1 = bufheight[1];
args.top_color = solid_top;
args.bottom_color = solid_bottom;
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DetectRangeError(args.dest, args.dest_y, args.count);
}
FString DebugInfo() override
{
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return "DrawSky\n" + args.ToString();
}
};
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#define DECLARE_DRAW_COMMAND(name, func, base) \
class name##LLVMCommand : public base \
{ \
public: \
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using base::base; \
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void Execute(DrawerThread *thread) override \
{ \
WorkerThreadData d = ThreadData(thread); \
LLVMDrawers::Instance()->func(&args, &d); \
} \
};
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//DECLARE_DRAW_COMMAND(name, func, DrawSpanLLVMCommand);
DECLARE_DRAW_COMMAND(DrawWallMasked4, mvlinec4, DrawWall4LLVMCommand);
DECLARE_DRAW_COMMAND(DrawWallAdd4, tmvline4_add, DrawWall4LLVMCommand);
DECLARE_DRAW_COMMAND(DrawWallAddClamp4, tmvline4_addclamp, DrawWall4LLVMCommand);
DECLARE_DRAW_COMMAND(DrawWallSubClamp4, tmvline4_subclamp, DrawWall4LLVMCommand);
DECLARE_DRAW_COMMAND(DrawWallRevSubClamp4, tmvline4_revsubclamp, DrawWall4LLVMCommand);
DECLARE_DRAW_COMMAND(DrawWallMasked1, mvlinec1, DrawWall1LLVMCommand);
DECLARE_DRAW_COMMAND(DrawWallAdd1, tmvline1_add, DrawWall1LLVMCommand);
DECLARE_DRAW_COMMAND(DrawWallAddClamp1, tmvline1_addclamp, DrawWall1LLVMCommand);
DECLARE_DRAW_COMMAND(DrawWallSubClamp1, tmvline1_subclamp, DrawWall1LLVMCommand);
DECLARE_DRAW_COMMAND(DrawWallRevSubClamp1, tmvline1_revsubclamp, DrawWall1LLVMCommand);
DECLARE_DRAW_COMMAND(DrawColumnAdd, DrawColumnAdd, DrawColumnLLVMCommand);
DECLARE_DRAW_COMMAND(DrawColumnTranslated, DrawColumnTranslated, DrawColumnLLVMCommand);
DECLARE_DRAW_COMMAND(DrawColumnTlatedAdd, DrawColumnTlatedAdd, DrawColumnLLVMCommand);
DECLARE_DRAW_COMMAND(DrawColumnShaded, DrawColumnShaded, DrawColumnLLVMCommand);
DECLARE_DRAW_COMMAND(DrawColumnAddClamp, DrawColumnAddClamp, DrawColumnLLVMCommand);
DECLARE_DRAW_COMMAND(DrawColumnAddClampTranslated, DrawColumnAddClampTranslated, DrawColumnLLVMCommand);
DECLARE_DRAW_COMMAND(DrawColumnSubClamp, DrawColumnSubClamp, DrawColumnLLVMCommand);
DECLARE_DRAW_COMMAND(DrawColumnSubClampTranslated, DrawColumnSubClampTranslated, DrawColumnLLVMCommand);
DECLARE_DRAW_COMMAND(DrawColumnRevSubClamp, DrawColumnRevSubClamp, DrawColumnLLVMCommand);
DECLARE_DRAW_COMMAND(DrawColumnRevSubClampTranslated, DrawColumnRevSubClampTranslated, DrawColumnLLVMCommand);
DECLARE_DRAW_COMMAND(FillColumn, FillColumn, DrawColumnLLVMCommand);
DECLARE_DRAW_COMMAND(FillColumnAdd, FillColumnAdd, DrawColumnLLVMCommand);
DECLARE_DRAW_COMMAND(FillColumnAddClamp, FillColumnAddClamp, DrawColumnLLVMCommand);
DECLARE_DRAW_COMMAND(FillColumnSubClamp, FillColumnSubClamp, DrawColumnLLVMCommand);
DECLARE_DRAW_COMMAND(FillColumnRevSubClamp, FillColumnRevSubClamp, DrawColumnLLVMCommand);
DECLARE_DRAW_COMMAND(DrawSingleSky1, DrawSky1, DrawSkyLLVMCommand);
DECLARE_DRAW_COMMAND(DrawSingleSky4, DrawSky4, DrawSkyLLVMCommand);
DECLARE_DRAW_COMMAND(DrawDoubleSky1, DrawDoubleSky1, DrawSkyLLVMCommand);
DECLARE_DRAW_COMMAND(DrawDoubleSky4, DrawDoubleSky4, DrawSkyLLVMCommand);
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/////////////////////////////////////////////////////////////////////////////
class DrawFuzzColumnRGBACommand : public DrawerCommand
{
int _x;
int _yl;
int _yh;
BYTE * RESTRICT _destorg;
int _pitch;
int _fuzzpos;
int _fuzzviewheight;
public:
DrawFuzzColumnRGBACommand()
{
_x = dc_x;
_yl = dc_yl;
_yh = dc_yh;
_destorg = dc_destorg;
_pitch = dc_pitch;
_fuzzpos = fuzzpos;
_fuzzviewheight = fuzzviewheight;
}
void Execute(DrawerThread *thread) override
{
int yl = MAX(_yl, 1);
int yh = MIN(_yh, _fuzzviewheight);
int count = thread->count_for_thread(yl, yh - yl + 1);
// Zero length.
if (count <= 0)
return;
uint32_t *dest = thread->dest_for_thread(yl, _pitch, ylookup[yl] + _x + (uint32_t*)_destorg);
int pitch = _pitch * thread->num_cores;
int fuzzstep = thread->num_cores;
int fuzz = (_fuzzpos + thread->skipped_by_thread(yl)) % FUZZTABLE;
yl += thread->skipped_by_thread(yl);
// Handle the case where we would go out of bounds at the top:
if (yl < fuzzstep)
{
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uint32_t *srcdest = dest + fuzzoffset[fuzz] * fuzzstep + pitch;
//assert(static_cast<int>((srcdest - (uint32_t*)dc_destorg) / (_pitch)) < viewheight);
uint32_t bg = *srcdest;
uint32_t red = RPART(bg) * 3 / 4;
uint32_t green = GPART(bg) * 3 / 4;
uint32_t blue = BPART(bg) * 3 / 4;
*dest = 0xff000000 | (red << 16) | (green << 8) | blue;
dest += pitch;
fuzz += fuzzstep;
fuzz %= FUZZTABLE;
count--;
if (count == 0)
return;
}
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bool lowerbounds = (yl + (count + fuzzstep - 1) * fuzzstep > _fuzzviewheight);
if (lowerbounds)
count--;
// Fuzz where fuzzoffset stays within bounds
while (count > 0)
{
int available = (FUZZTABLE - fuzz);
int next_wrap = available / fuzzstep;
if (available % fuzzstep != 0)
next_wrap++;
int cnt = MIN(count, next_wrap);
count -= cnt;
do
{
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uint32_t *srcdest = dest + fuzzoffset[fuzz] * fuzzstep;
//assert(static_cast<int>((srcdest - (uint32_t*)dc_destorg) / (_pitch)) < viewheight);
uint32_t bg = *srcdest;
uint32_t red = RPART(bg) * 3 / 4;
uint32_t green = GPART(bg) * 3 / 4;
uint32_t blue = BPART(bg) * 3 / 4;
*dest = 0xff000000 | (red << 16) | (green << 8) | blue;
dest += pitch;
fuzz += fuzzstep;
} while (--cnt);
fuzz %= FUZZTABLE;
}
// Handle the case where we would go out of bounds at the bottom
if (lowerbounds)
{
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uint32_t *srcdest = dest + fuzzoffset[fuzz] * fuzzstep - pitch;
//assert(static_cast<int>((srcdest - (uint32_t*)dc_destorg) / (_pitch)) < viewheight);
uint32_t bg = *srcdest;
uint32_t red = RPART(bg) * 3 / 4;
uint32_t green = GPART(bg) * 3 / 4;
uint32_t blue = BPART(bg) * 3 / 4;
*dest = 0xff000000 | (red << 16) | (green << 8) | blue;
}
}
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FString DebugInfo() override
{
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return "DrawFuzzColumn";
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}
};
class FillSpanRGBACommand : public DrawerCommand
{
int _x1;
int _x2;
int _y;
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BYTE * RESTRICT _destorg;
fixed_t _light;
int _color;
public:
FillSpanRGBACommand()
{
_x1 = ds_x1;
_x2 = ds_x2;
_y = ds_y;
_destorg = dc_destorg;
_light = ds_light;
_color = ds_color;
}
void Execute(DrawerThread *thread) override
{
if (thread->line_skipped_by_thread(_y))
return;
uint32_t *dest = ylookup[_y] + _x1 + (uint32_t*)_destorg;
int count = (_x2 - _x1 + 1);
uint32_t light = LightBgra::calc_light_multiplier(_light);
uint32_t color = LightBgra::shade_pal_index_simple(_color, light);
for (int i = 0; i < count; i++)
dest[i] = color;
}
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FString DebugInfo() override
{
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return "FillSpan";
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}
};
/////////////////////////////////////////////////////////////////////////////
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class DrawSlabRGBACommand : public DrawerCommand
{
int _dx;
fixed_t _v;
int _dy;
fixed_t _vi;
const BYTE *_voxelptr;
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uint32_t *_p;
ShadeConstants _shade_constants;
const BYTE *_colormap;
fixed_t _light;
int _pitch;
int _start_y;
public:
DrawSlabRGBACommand(int dx, fixed_t v, int dy, fixed_t vi, const BYTE *vptr, BYTE *p, ShadeConstants shade_constants, const BYTE *colormap, fixed_t light)
{
_dx = dx;
_v = v;
_dy = dy;
_vi = vi;
_voxelptr = vptr;
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_p = (uint32_t *)p;
_shade_constants = shade_constants;
_colormap = colormap;
_light = light;
_pitch = dc_pitch;
_start_y = static_cast<int>((p - dc_destorg) / (dc_pitch * 4));
assert(dx > 0);
}
void Execute(DrawerThread *thread) override
{
int dx = _dx;
fixed_t v = _v;
int dy = _dy;
fixed_t vi = _vi;
const BYTE *vptr = _voxelptr;
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uint32_t *p = _p;
ShadeConstants shade_constants = _shade_constants;
const BYTE *colormap = _colormap;
uint32_t light = LightBgra::calc_light_multiplier(_light);
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int pitch = _pitch;
int x;
dy = thread->count_for_thread(_start_y, dy);
p = thread->dest_for_thread(_start_y, pitch, p);
v += vi * thread->skipped_by_thread(_start_y);
vi *= thread->num_cores;
pitch *= thread->num_cores;
if (dx == 1)
{
while (dy > 0)
{
*p = LightBgra::shade_pal_index(colormap[vptr[v >> FRACBITS]], light, shade_constants);
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p += pitch;
v += vi;
dy--;
}
}
else if (dx == 2)
{
while (dy > 0)
{
uint32_t color = LightBgra::shade_pal_index(colormap[vptr[v >> FRACBITS]], light, shade_constants);
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p[0] = color;
p[1] = color;
p += pitch;
v += vi;
dy--;
}
}
else if (dx == 3)
{
while (dy > 0)
{
uint32_t color = LightBgra::shade_pal_index(colormap[vptr[v >> FRACBITS]], light, shade_constants);
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p[0] = color;
p[1] = color;
p[2] = color;
p += pitch;
v += vi;
dy--;
}
}
else if (dx == 4)
{
while (dy > 0)
{
uint32_t color = LightBgra::shade_pal_index(colormap[vptr[v >> FRACBITS]], light, shade_constants);
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p[0] = color;
p[1] = color;
p[2] = color;
p[3] = color;
p += pitch;
v += vi;
dy--;
}
}
else while (dy > 0)
{
uint32_t color = LightBgra::shade_pal_index(colormap[vptr[v >> FRACBITS]], light, shade_constants);
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// The optimizer will probably turn this into a memset call.
// Since dx is not likely to be large, I'm not sure that's a good thing,
// hence the alternatives above.
for (x = 0; x < dx; x++)
{
p[x] = color;
}
p += pitch;
v += vi;
dy--;
}
}
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FString DebugInfo() override
{
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return "DrawSlab";
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}
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};
/////////////////////////////////////////////////////////////////////////////
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class DrawFogBoundaryLineRGBACommand : public DrawerCommand
{
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int _y;
int _x;
int _x2;
BYTE * RESTRICT _destorg;
fixed_t _light;
ShadeConstants _shade_constants;
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public:
DrawFogBoundaryLineRGBACommand(int y, int x, int x2)
{
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_y = y;
_x = x;
_x2 = x2;
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_destorg = dc_destorg;
_light = dc_light;
_shade_constants = dc_shade_constants;
}
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void Execute(DrawerThread *thread) override
{
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if (thread->line_skipped_by_thread(_y))
return;
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int y = _y;
int x = _x;
int x2 = _x2;
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uint32_t *dest = ylookup[y] + (uint32_t*)_destorg;
uint32_t light = LightBgra::calc_light_multiplier(_light);
ShadeConstants constants = _shade_constants;
do
{
uint32_t red = (dest[x] >> 16) & 0xff;
uint32_t green = (dest[x] >> 8) & 0xff;
uint32_t blue = dest[x] & 0xff;
if (constants.simple_shade)
{
red = red * light / 256;
green = green * light / 256;
blue = blue * light / 256;
}
else
{
uint32_t inv_light = 256 - light;
uint32_t inv_desaturate = 256 - constants.desaturate;
uint32_t intensity = ((red * 77 + green * 143 + blue * 37) >> 8) * constants.desaturate;
red = (red * inv_desaturate + intensity) / 256;
green = (green * inv_desaturate + intensity) / 256;
blue = (blue * inv_desaturate + intensity) / 256;
red = (constants.fade_red * inv_light + red * light) / 256;
green = (constants.fade_green * inv_light + green * light) / 256;
blue = (constants.fade_blue * inv_light + blue * light) / 256;
red = (red * constants.light_red) / 256;
green = (green * constants.light_green) / 256;
blue = (blue * constants.light_blue) / 256;
}
dest[x] = 0xff000000 | (red << 16) | (green << 8) | blue;
} while (++x <= x2);
}
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FString DebugInfo() override
{
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return "DrawFogBoundaryLine";
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}
};
class DrawTiltedSpanRGBACommand : public DrawerCommand
{
int _x1;
int _x2;
int _y;
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BYTE * RESTRICT _destorg;
fixed_t _light;
ShadeConstants _shade_constants;
FVector3 _plane_sz;
FVector3 _plane_su;
FVector3 _plane_sv;
bool _plane_shade;
int _planeshade;
float _planelightfloat;
fixed_t _pviewx;
fixed_t _pviewy;
int _xbits;
int _ybits;
const uint32_t * RESTRICT _source;
public:
DrawTiltedSpanRGBACommand(int y, int x1, int x2, const FVector3 &plane_sz, const FVector3 &plane_su, const FVector3 &plane_sv, bool plane_shade, int planeshade, float planelightfloat, fixed_t pviewx, fixed_t pviewy)
{
_x1 = x1;
_x2 = x2;
_y = y;
_destorg = dc_destorg;
_light = ds_light;
_shade_constants = ds_shade_constants;
_plane_sz = plane_sz;
_plane_su = plane_su;
_plane_sv = plane_sv;
_plane_shade = plane_shade;
_planeshade = planeshade;
_planelightfloat = planelightfloat;
_pviewx = pviewx;
_pviewy = pviewy;
_source = (const uint32_t*)ds_source;
_xbits = ds_xbits;
_ybits = ds_ybits;
}
void Execute(DrawerThread *thread) override
{
if (thread->line_skipped_by_thread(_y))
return;
//#define SPANSIZE 32
//#define INVSPAN 0.03125f
//#define SPANSIZE 8
//#define INVSPAN 0.125f
#define SPANSIZE 16
#define INVSPAN 0.0625f
int source_width = 1 << _xbits;
int source_height = 1 << _ybits;
uint32_t *dest = ylookup[_y] + _x1 + (uint32_t*)_destorg;
int count = _x2 - _x1 + 1;
// Depth (Z) change across the span
double iz = _plane_sz[2] + _plane_sz[1] * (centery - _y) + _plane_sz[0] * (_x1 - centerx);
// Light change across the span
fixed_t lightstart = _light;
fixed_t lightend = lightstart;
if (_plane_shade)
{
double vis_start = iz * _planelightfloat;
double vis_end = (iz + _plane_sz[0] * count) * _planelightfloat;
lightstart = LIGHTSCALE(vis_start, _planeshade);
lightend = LIGHTSCALE(vis_end, _planeshade);
}
fixed_t light = lightstart;
fixed_t steplight = (lightend - lightstart) / count;
// Texture coordinates
double uz = _plane_su[2] + _plane_su[1] * (centery - _y) + _plane_su[0] * (_x1 - centerx);
double vz = _plane_sv[2] + _plane_sv[1] * (centery - _y) + _plane_sv[0] * (_x1 - centerx);
double startz = 1.f / iz;
double startu = uz*startz;
double startv = vz*startz;
double izstep = _plane_sz[0] * SPANSIZE;
double uzstep = _plane_su[0] * SPANSIZE;
double vzstep = _plane_sv[0] * SPANSIZE;
// Linear interpolate in sizes of SPANSIZE to increase speed
while (count >= SPANSIZE)
{
iz += izstep;
uz += uzstep;
vz += vzstep;
double endz = 1.f / iz;
double endu = uz*endz;
double endv = vz*endz;
uint32_t stepu = (uint32_t)(SQWORD((endu - startu) * INVSPAN));
uint32_t stepv = (uint32_t)(SQWORD((endv - startv) * INVSPAN));
uint32_t u = (uint32_t)(SQWORD(startu) + _pviewx);
uint32_t v = (uint32_t)(SQWORD(startv) + _pviewy);
for (int i = 0; i < SPANSIZE; i++)
{
uint32_t sx = ((u >> 16) * source_width) >> 16;
uint32_t sy = ((v >> 16) * source_height) >> 16;
uint32_t fg = _source[sy + sx * source_height];
if (_shade_constants.simple_shade)
*(dest++) = LightBgra::shade_bgra_simple(fg, LightBgra::calc_light_multiplier(light));
else
*(dest++) = LightBgra::shade_bgra(fg, LightBgra::calc_light_multiplier(light), _shade_constants);
u += stepu;
v += stepv;
light += steplight;
}
startu = endu;
startv = endv;
count -= SPANSIZE;
}
// The last few pixels at the end
while (count > 0)
{
double endz = 1.f / iz;
startu = uz*endz;
startv = vz*endz;
uint32_t u = (uint32_t)(SQWORD(startu) + _pviewx);
uint32_t v = (uint32_t)(SQWORD(startv) + _pviewy);
uint32_t sx = ((u >> 16) * source_width) >> 16;
uint32_t sy = ((v >> 16) * source_height) >> 16;
uint32_t fg = _source[sy + sx * source_height];
if (_shade_constants.simple_shade)
*(dest++) = LightBgra::shade_bgra_simple(fg, LightBgra::calc_light_multiplier(light));
else
*(dest++) = LightBgra::shade_bgra(fg, LightBgra::calc_light_multiplier(light), _shade_constants);
iz += _plane_sz[0];
uz += _plane_su[0];
vz += _plane_sv[0];
light += steplight;
count--;
}
}
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FString DebugInfo() override
{
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return "DrawTiltedSpan";
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}
};
class DrawColoredSpanRGBACommand : public DrawerCommand
{
int _y;
int _x1;
int _x2;
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BYTE * RESTRICT _destorg;
fixed_t _light;
int _color;
public:
DrawColoredSpanRGBACommand(int y, int x1, int x2)
{
_y = y;
_x1 = x1;
_x2 = x2;
_destorg = dc_destorg;
_light = ds_light;
_color = ds_color;
}
void Execute(DrawerThread *thread) override
{
if (thread->line_skipped_by_thread(_y))
return;
int y = _y;
int x1 = _x1;
int x2 = _x2;
uint32_t *dest = ylookup[y] + x1 + (uint32_t*)_destorg;
int count = (x2 - x1 + 1);
uint32_t light = LightBgra::calc_light_multiplier(_light);
uint32_t color = LightBgra::shade_pal_index_simple(_color, light);
for (int i = 0; i < count; i++)
dest[i] = color;
}
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FString DebugInfo() override
{
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return "DrawColoredSpan";
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}
};
class FillTransColumnRGBACommand : public DrawerCommand
{
int _x;
int _y1;
int _y2;
int _color;
int _a;
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BYTE * RESTRICT _destorg;
int _pitch;
fixed_t _light;
public:
FillTransColumnRGBACommand(int x, int y1, int y2, int color, int a)
{
_x = x;
_y1 = y1;
_y2 = y2;
_color = color;
_a = a;
_destorg = dc_destorg;
_pitch = dc_pitch;
}
void Execute(DrawerThread *thread) override
{
int x = _x;
int y1 = _y1;
int y2 = _y2;
int color = _color;
int a = _a;
int ycount = thread->count_for_thread(y1, y2 - y1 + 1);
if (ycount <= 0)
return;
uint32_t fg = GPalette.BaseColors[color].d;
uint32_t fg_red = (fg >> 16) & 0xff;
uint32_t fg_green = (fg >> 8) & 0xff;
uint32_t fg_blue = fg & 0xff;
uint32_t alpha = a + 1;
uint32_t inv_alpha = 256 - alpha;
fg_red *= alpha;
fg_green *= alpha;
fg_blue *= alpha;
int spacing = _pitch * thread->num_cores;
uint32_t *dest = thread->dest_for_thread(y1, _pitch, ylookup[y1] + x + (uint32_t*)_destorg);
for (int y = 0; y < ycount; y++)
{
uint32_t bg_red = (*dest >> 16) & 0xff;
uint32_t bg_green = (*dest >> 8) & 0xff;
uint32_t bg_blue = (*dest) & 0xff;
uint32_t red = (fg_red + bg_red * inv_alpha) / 256;
uint32_t green = (fg_green + bg_green * inv_alpha) / 256;
uint32_t blue = (fg_blue + bg_blue * inv_alpha) / 256;
*dest = 0xff000000 | (red << 16) | (green << 8) | blue;
dest += spacing;
}
}
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FString DebugInfo() override
{
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return "FillTransColumn";
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}
};
ApplySpecialColormapRGBACommand::ApplySpecialColormapRGBACommand(FSpecialColormap *colormap, DFrameBuffer *screen)
{
buffer = screen->GetBuffer();
pitch = screen->GetPitch();
width = screen->GetWidth();
height = screen->GetHeight();
start_red = (int)(colormap->ColorizeStart[0] * 255);
start_green = (int)(colormap->ColorizeStart[1] * 255);
start_blue = (int)(colormap->ColorizeStart[2] * 255);
end_red = (int)(colormap->ColorizeEnd[0] * 255);
end_green = (int)(colormap->ColorizeEnd[1] * 255);
end_blue = (int)(colormap->ColorizeEnd[2] * 255);
}
#ifdef NO_SSE
void ApplySpecialColormapRGBACommand::Execute(DrawerThread *thread)
{
int y = thread->skipped_by_thread(0);
int count = thread->count_for_thread(0, height);
while (count > 0)
{
BYTE *pixels = buffer + y * pitch * 4;
for (int x = 0; x < width; x++)
{
int fg_red = pixels[2];
int fg_green = pixels[1];
int fg_blue = pixels[0];
int gray = (fg_red * 77 + fg_green * 143 + fg_blue * 37) >> 8;
gray += (gray >> 7); // gray*=256/255
int inv_gray = 256 - gray;
int red = clamp((start_red * inv_gray + end_red * gray) >> 8, 0, 255);
int green = clamp((start_green * inv_gray + end_green * gray) >> 8, 0, 255);
int blue = clamp((start_blue * inv_gray + end_blue * gray) >> 8, 0, 255);
pixels[0] = (BYTE)blue;
pixels[1] = (BYTE)green;
pixels[2] = (BYTE)red;
pixels[3] = 0xff;
pixels += 4;
}
y += thread->num_cores;
count--;
}
}
#else
void ApplySpecialColormapRGBACommand::Execute(DrawerThread *thread)
{
int y = thread->skipped_by_thread(0);
int count = thread->count_for_thread(0, height);
__m128i gray_weight = _mm_set_epi16(256, 77, 143, 37, 256, 77, 143, 37);
__m128i start_end = _mm_set_epi16(255, start_red, start_green, start_blue, 255, end_red, end_green, end_blue);
while (count > 0)
{
BYTE *pixels = buffer + y * pitch * 4;
int sse_length = width / 4;
for (int x = 0; x < sse_length; x++)
{
// Unpack to integers:
__m128i p = _mm_loadu_si128((const __m128i*)pixels);
__m128i p16_0 = _mm_unpacklo_epi8(p, _mm_setzero_si128());
__m128i p16_1 = _mm_unpackhi_epi8(p, _mm_setzero_si128());
// Add gray weighting to colors
__m128i mullo0 = _mm_mullo_epi16(p16_0, gray_weight);
__m128i mullo1 = _mm_mullo_epi16(p16_1, gray_weight);
__m128i p32_0 = _mm_unpacklo_epi16(mullo0, _mm_setzero_si128());
__m128i p32_1 = _mm_unpackhi_epi16(mullo0, _mm_setzero_si128());
__m128i p32_2 = _mm_unpacklo_epi16(mullo1, _mm_setzero_si128());
__m128i p32_3 = _mm_unpackhi_epi16(mullo1, _mm_setzero_si128());
// Transpose to get color components in individual vectors:
__m128 tmpx = _mm_castsi128_ps(p32_0);
__m128 tmpy = _mm_castsi128_ps(p32_1);
__m128 tmpz = _mm_castsi128_ps(p32_2);
__m128 tmpw = _mm_castsi128_ps(p32_3);
_MM_TRANSPOSE4_PS(tmpx, tmpy, tmpz, tmpw);
__m128i blue = _mm_castps_si128(tmpx);
__m128i green = _mm_castps_si128(tmpy);
__m128i red = _mm_castps_si128(tmpz);
__m128i alpha = _mm_castps_si128(tmpw);
// Calculate gray and 256-gray values:
__m128i gray = _mm_srli_epi32(_mm_add_epi32(_mm_add_epi32(red, green), blue), 8);
__m128i inv_gray = _mm_sub_epi32(_mm_set1_epi32(256), gray);
// p32 = start * inv_gray + end * gray:
__m128i gray0 = _mm_shuffle_epi32(gray, _MM_SHUFFLE(0, 0, 0, 0));
__m128i gray1 = _mm_shuffle_epi32(gray, _MM_SHUFFLE(1, 1, 1, 1));
__m128i gray2 = _mm_shuffle_epi32(gray, _MM_SHUFFLE(2, 2, 2, 2));
__m128i gray3 = _mm_shuffle_epi32(gray, _MM_SHUFFLE(3, 3, 3, 3));
__m128i inv_gray0 = _mm_shuffle_epi32(inv_gray, _MM_SHUFFLE(0, 0, 0, 0));
__m128i inv_gray1 = _mm_shuffle_epi32(inv_gray, _MM_SHUFFLE(1, 1, 1, 1));
__m128i inv_gray2 = _mm_shuffle_epi32(inv_gray, _MM_SHUFFLE(2, 2, 2, 2));
__m128i inv_gray3 = _mm_shuffle_epi32(inv_gray, _MM_SHUFFLE(3, 3, 3, 3));
__m128i gray16_0 = _mm_packs_epi32(gray0, inv_gray0);
__m128i gray16_1 = _mm_packs_epi32(gray1, inv_gray1);
__m128i gray16_2 = _mm_packs_epi32(gray2, inv_gray2);
__m128i gray16_3 = _mm_packs_epi32(gray3, inv_gray3);
__m128i gray16_0_mullo = _mm_mullo_epi16(gray16_0, start_end);
__m128i gray16_1_mullo = _mm_mullo_epi16(gray16_1, start_end);
__m128i gray16_2_mullo = _mm_mullo_epi16(gray16_2, start_end);
__m128i gray16_3_mullo = _mm_mullo_epi16(gray16_3, start_end);
__m128i gray16_0_mulhi = _mm_mulhi_epi16(gray16_0, start_end);
__m128i gray16_1_mulhi = _mm_mulhi_epi16(gray16_1, start_end);
__m128i gray16_2_mulhi = _mm_mulhi_epi16(gray16_2, start_end);
__m128i gray16_3_mulhi = _mm_mulhi_epi16(gray16_3, start_end);
p32_0 = _mm_srli_epi32(_mm_add_epi32(_mm_unpacklo_epi16(gray16_0_mullo, gray16_0_mulhi), _mm_unpackhi_epi16(gray16_0_mullo, gray16_0_mulhi)), 8);
p32_1 = _mm_srli_epi32(_mm_add_epi32(_mm_unpacklo_epi16(gray16_1_mullo, gray16_1_mulhi), _mm_unpackhi_epi16(gray16_1_mullo, gray16_1_mulhi)), 8);
p32_2 = _mm_srli_epi32(_mm_add_epi32(_mm_unpacklo_epi16(gray16_2_mullo, gray16_2_mulhi), _mm_unpackhi_epi16(gray16_2_mullo, gray16_2_mulhi)), 8);
p32_3 = _mm_srli_epi32(_mm_add_epi32(_mm_unpacklo_epi16(gray16_3_mullo, gray16_3_mulhi), _mm_unpackhi_epi16(gray16_3_mullo, gray16_3_mulhi)), 8);
p16_0 = _mm_packs_epi32(p32_0, p32_1);
p16_1 = _mm_packs_epi32(p32_2, p32_3);
p = _mm_packus_epi16(p16_0, p16_1);
_mm_storeu_si128((__m128i*)pixels, p);
pixels += 16;
}
for (int x = sse_length * 4; x < width; x++)
{
int fg_red = pixels[2];
int fg_green = pixels[1];
int fg_blue = pixels[0];
int gray = (fg_red * 77 + fg_green * 143 + fg_blue * 37) >> 8;
gray += (gray >> 7); // gray*=256/255
int inv_gray = 256 - gray;
int red = clamp((start_red * inv_gray + end_red * gray) >> 8, 0, 255);
int green = clamp((start_green * inv_gray + end_green * gray) >> 8, 0, 255);
int blue = clamp((start_blue * inv_gray + end_blue * gray) >> 8, 0, 255);
pixels[0] = (BYTE)blue;
pixels[1] = (BYTE)green;
pixels[2] = (BYTE)red;
pixels[3] = 0xff;
pixels += 4;
}
y += thread->num_cores;
count--;
}
}
#endif
/////////////////////////////////////////////////////////////////////////////
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void R_DrawSingleSkyCol1_rgba(uint32_t solid_top, uint32_t solid_bottom)
{
DrawerCommandQueue::QueueCommand<DrawSingleSky1LLVMCommand>(solid_top, solid_bottom);
}
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void R_DrawSingleSkyCol4_rgba(uint32_t solid_top, uint32_t solid_bottom)
{
DrawerCommandQueue::QueueCommand<DrawSingleSky4LLVMCommand>(solid_top, solid_bottom);
}
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void R_DrawDoubleSkyCol1_rgba(uint32_t solid_top, uint32_t solid_bottom)
{
DrawerCommandQueue::QueueCommand<DrawDoubleSky1LLVMCommand>(solid_top, solid_bottom);
}
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void R_DrawDoubleSkyCol4_rgba(uint32_t solid_top, uint32_t solid_bottom)
{
DrawerCommandQueue::QueueCommand<DrawDoubleSky4LLVMCommand>(solid_top, solid_bottom);
}
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void R_DrawColumn_rgba()
{
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DrawerCommandQueue::QueueCommand<DrawColumnLLVMCommand>();
}
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void R_FillColumn_rgba()
{
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DrawerCommandQueue::QueueCommand<FillColumnLLVMCommand>();
}
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void R_FillAddColumn_rgba()
{
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DrawerCommandQueue::QueueCommand<FillColumnAddLLVMCommand>();
}
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void R_FillAddClampColumn_rgba()
{
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DrawerCommandQueue::QueueCommand<FillColumnAddClampLLVMCommand>();
}
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void R_FillSubClampColumn_rgba()
{
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DrawerCommandQueue::QueueCommand<FillColumnSubClampLLVMCommand>();
}
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void R_FillRevSubClampColumn_rgba()
{
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DrawerCommandQueue::QueueCommand<FillColumnRevSubClampLLVMCommand>();
}
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void R_DrawFuzzColumn_rgba()
{
DrawerCommandQueue::QueueCommand<DrawFuzzColumnRGBACommand>();
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dc_yl = MAX(dc_yl, 1);
dc_yh = MIN(dc_yh, fuzzviewheight);
if (dc_yl <= dc_yh)
fuzzpos = (fuzzpos + dc_yh - dc_yl + 1) % FUZZTABLE;
}
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void R_DrawAddColumn_rgba()
{
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DrawerCommandQueue::QueueCommand<DrawColumnAddLLVMCommand>();
}
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void R_DrawTranslatedColumn_rgba()
{
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DrawerCommandQueue::QueueCommand<DrawColumnTranslatedLLVMCommand>();
}
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void R_DrawTlatedAddColumn_rgba()
{
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DrawerCommandQueue::QueueCommand<DrawColumnTlatedAddLLVMCommand>();
}
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void R_DrawShadedColumn_rgba()
{
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DrawerCommandQueue::QueueCommand<DrawColumnShadedLLVMCommand>();
}
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void R_DrawAddClampColumn_rgba()
{
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DrawerCommandQueue::QueueCommand<DrawColumnAddClampLLVMCommand>();
}
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void R_DrawAddClampTranslatedColumn_rgba()
{
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DrawerCommandQueue::QueueCommand<DrawColumnAddClampTranslatedLLVMCommand>();
}
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void R_DrawSubClampColumn_rgba()
{
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DrawerCommandQueue::QueueCommand<DrawColumnSubClampLLVMCommand>();
}
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void R_DrawSubClampTranslatedColumn_rgba()
{
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DrawerCommandQueue::QueueCommand<DrawColumnSubClampTranslatedLLVMCommand>();
}
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void R_DrawRevSubClampColumn_rgba()
{
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DrawerCommandQueue::QueueCommand<DrawColumnRevSubClampLLVMCommand>();
}
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void R_DrawRevSubClampTranslatedColumn_rgba()
{
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DrawerCommandQueue::QueueCommand<DrawColumnRevSubClampTranslatedLLVMCommand>();
}
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void R_DrawSpan_rgba()
{
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DrawerCommandQueue::QueueCommand<DrawSpanLLVMCommand>();
}
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void R_DrawSpanMasked_rgba()
{
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DrawerCommandQueue::QueueCommand<DrawSpanMaskedLLVMCommand>();
}
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void R_DrawSpanTranslucent_rgba()
{
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DrawerCommandQueue::QueueCommand<DrawSpanTranslucentLLVMCommand>();
}
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void R_DrawSpanMaskedTranslucent_rgba()
{
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DrawerCommandQueue::QueueCommand<DrawSpanMaskedTranslucentLLVMCommand>();
}
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void R_DrawSpanAddClamp_rgba()
{
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DrawerCommandQueue::QueueCommand<DrawSpanAddClampLLVMCommand>();
}
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void R_DrawSpanMaskedAddClamp_rgba()
{
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DrawerCommandQueue::QueueCommand<DrawSpanMaskedAddClampLLVMCommand>();
}
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void R_FillSpan_rgba()
{
DrawerCommandQueue::QueueCommand<FillSpanRGBACommand>();
}
void R_DrawTiltedSpan_rgba(int y, int x1, int x2, const FVector3 &plane_sz, const FVector3 &plane_su, const FVector3 &plane_sv, bool plane_shade, int planeshade, float planelightfloat, fixed_t pviewx, fixed_t pviewy)
{
DrawerCommandQueue::QueueCommand<DrawTiltedSpanRGBACommand>(y, x1, x2, plane_sz, plane_su, plane_sv, plane_shade, planeshade, planelightfloat, pviewx, pviewy);
}
void R_DrawColoredSpan_rgba(int y, int x1, int x2)
{
DrawerCommandQueue::QueueCommand<DrawColoredSpanRGBACommand>(y, x1, x2);
}
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static ShadeConstants slab_rgba_shade_constants;
static const BYTE *slab_rgba_colormap;
static fixed_t slab_rgba_light;
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void R_SetupDrawSlab_rgba(FSWColormap *base_colormap, float light, int shade)
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{
slab_rgba_shade_constants.light_red = base_colormap->Color.r * 256 / 255;
slab_rgba_shade_constants.light_green = base_colormap->Color.g * 256 / 255;
slab_rgba_shade_constants.light_blue = base_colormap->Color.b * 256 / 255;
slab_rgba_shade_constants.light_alpha = base_colormap->Color.a * 256 / 255;
slab_rgba_shade_constants.fade_red = base_colormap->Fade.r;
slab_rgba_shade_constants.fade_green = base_colormap->Fade.g;
slab_rgba_shade_constants.fade_blue = base_colormap->Fade.b;
slab_rgba_shade_constants.fade_alpha = base_colormap->Fade.a;
slab_rgba_shade_constants.desaturate = MIN(abs(base_colormap->Desaturate), 255) * 255 / 256;
slab_rgba_shade_constants.simple_shade = (base_colormap->Color.d == 0x00ffffff && base_colormap->Fade.d == 0x00000000 && base_colormap->Desaturate == 0);
slab_rgba_colormap = base_colormap->Maps;
slab_rgba_light = LIGHTSCALE(light, shade);
}
void R_DrawSlab_rgba(int dx, fixed_t v, int dy, fixed_t vi, const BYTE *vptr, BYTE *p)
{
DrawerCommandQueue::QueueCommand<DrawSlabRGBACommand>(dx, v, dy, vi, vptr, p, slab_rgba_shade_constants, slab_rgba_colormap, slab_rgba_light);
}
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DWORD vlinec1_rgba()
{
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DrawerCommandQueue::QueueCommand<DrawWall1LLVMCommand>();
return dc_texturefrac + dc_count * dc_iscale;
}
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void vlinec4_rgba()
{
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DrawerCommandQueue::QueueCommand<DrawWall4LLVMCommand>();
for (int i = 0; i < 4; i++)
vplce[i] += vince[i] * dc_count;
}
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DWORD mvlinec1_rgba()
{
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DrawerCommandQueue::QueueCommand<DrawWallMasked1LLVMCommand>();
return dc_texturefrac + dc_count * dc_iscale;
}
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void mvlinec4_rgba()
{
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DrawerCommandQueue::QueueCommand<DrawWallMasked4LLVMCommand>();
for (int i = 0; i < 4; i++)
vplce[i] += vince[i] * dc_count;
}
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fixed_t tmvline1_add_rgba()
{
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DrawerCommandQueue::QueueCommand<DrawWallAdd1LLVMCommand>();
return dc_texturefrac + dc_count * dc_iscale;
}
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void tmvline4_add_rgba()
{
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DrawerCommandQueue::QueueCommand<DrawWallAdd4LLVMCommand>();
for (int i = 0; i < 4; i++)
vplce[i] += vince[i] * dc_count;
}
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fixed_t tmvline1_addclamp_rgba()
{
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DrawerCommandQueue::QueueCommand<DrawWallAddClamp1LLVMCommand>();
return dc_texturefrac + dc_count * dc_iscale;
}
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void tmvline4_addclamp_rgba()
{
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DrawerCommandQueue::QueueCommand<DrawWallAddClamp4LLVMCommand>();
for (int i = 0; i < 4; i++)
vplce[i] += vince[i] * dc_count;
}
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fixed_t tmvline1_subclamp_rgba()
{
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DrawerCommandQueue::QueueCommand<DrawWallSubClamp1LLVMCommand>();
return dc_texturefrac + dc_count * dc_iscale;
}
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void tmvline4_subclamp_rgba()
{
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DrawerCommandQueue::QueueCommand<DrawWallSubClamp4LLVMCommand>();
for (int i = 0; i < 4; i++)
vplce[i] += vince[i] * dc_count;
}
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fixed_t tmvline1_revsubclamp_rgba()
{
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DrawerCommandQueue::QueueCommand<DrawWallRevSubClamp1LLVMCommand>();
return dc_texturefrac + dc_count * dc_iscale;
}
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void tmvline4_revsubclamp_rgba()
{
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DrawerCommandQueue::QueueCommand<DrawWallRevSubClamp4LLVMCommand>();
for (int i = 0; i < 4; i++)
vplce[i] += vince[i] * dc_count;
}
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void R_DrawFogBoundarySection_rgba(int y, int y2, int x1)
{
for (; y < y2; ++y)
{
int x2 = spanend[y];
DrawerCommandQueue::QueueCommand<DrawFogBoundaryLineRGBACommand>(y, x1, x2);
}
}
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void R_DrawFogBoundary_rgba(int x1, int x2, short *uclip, short *dclip)
{
// To do: we do not need to create new spans when using rgba output - instead we should calculate light on a per pixel basis
// This is essentially the same as R_MapVisPlane but with an extra step
// to create new horizontal spans whenever the light changes enough that
// we need to use a new colormap.
double lightstep = rw_lightstep;
double light = rw_light + rw_lightstep*(x2 - x1 - 1);
int x = x2 - 1;
int t2 = uclip[x];
int b2 = dclip[x];
int rcolormap = GETPALOOKUP(light, wallshade);
int lcolormap;
BYTE *basecolormapdata = basecolormap->Maps;
if (b2 > t2)
{
clearbufshort(spanend + t2, b2 - t2, x);
}
R_SetColorMapLight(basecolormap, (float)light, wallshade);
BYTE *fake_dc_colormap = basecolormap->Maps + (GETPALOOKUP(light, wallshade) << COLORMAPSHIFT);
for (--x; x >= x1; --x)
{
int t1 = uclip[x];
int b1 = dclip[x];
const int xr = x + 1;
int stop;
light -= rw_lightstep;
lcolormap = GETPALOOKUP(light, wallshade);
if (lcolormap != rcolormap)
{
if (t2 < b2 && rcolormap != 0)
{ // Colormap 0 is always the identity map, so rendering it is
// just a waste of time.
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R_DrawFogBoundarySection_rgba(t2, b2, xr);
}
if (t1 < t2) t2 = t1;
if (b1 > b2) b2 = b1;
if (t2 < b2)
{
clearbufshort(spanend + t2, b2 - t2, x);
}
rcolormap = lcolormap;
R_SetColorMapLight(basecolormap, (float)light, wallshade);
fake_dc_colormap = basecolormap->Maps + (GETPALOOKUP(light, wallshade) << COLORMAPSHIFT);
}
else
{
if (fake_dc_colormap != basecolormapdata)
{
stop = MIN(t1, b2);
while (t2 < stop)
{
int y = t2++;
DrawerCommandQueue::QueueCommand<DrawFogBoundaryLineRGBACommand>(y, xr, spanend[y]);
}
stop = MAX(b1, t2);
while (b2 > stop)
{
int y = --b2;
DrawerCommandQueue::QueueCommand<DrawFogBoundaryLineRGBACommand>(y, xr, spanend[y]);
}
}
else
{
t2 = MAX(t2, MIN(t1, b2));
b2 = MIN(b2, MAX(b1, t2));
}
stop = MIN(t2, b1);
while (t1 < stop)
{
spanend[t1++] = x;
}
stop = MAX(b2, t2);
while (b1 > stop)
{
spanend[--b1] = x;
}
}
t2 = uclip[x];
b2 = dclip[x];
}
if (t2 < b2 && rcolormap != 0)
{
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R_DrawFogBoundarySection_rgba(t2, b2, x1);
}
}