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qzdoom/src/v_draw.cpp

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/*
** v_draw.cpp
** Draw patches and blocks to a canvas
**
**---------------------------------------------------------------------------
** Copyright 1998-2008 Randy Heit
** All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
**
** 1. Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** 2. Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in the
** documentation and/or other materials provided with the distribution.
** 3. The name of the author may not be used to endorse or promote products
** derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**---------------------------------------------------------------------------
**
*/
// #define NO_SWRENDER // set this if you want to exclude the software renderer. Without software renderer the base implementations of DrawTextureV and FillSimplePoly need to be disabled because they depend on it.
#include <stdio.h>
#include <stdarg.h>
#include "doomtype.h"
#include "v_video.h"
#include "m_swap.h"
#include "r_defs.h"
#include "r_utility.h"
#ifndef NO_SWRENDER
#include "r_draw.h"
#include "r_main.h"
#include "r_things.h"
#endif
#include "r_data/r_translate.h"
#include "doomstat.h"
#include "v_palette.h"
#include "gi.h"
#include "g_level.h"
#include "st_stuff.h"
#include "sbar.h"
#include "i_system.h"
#include "i_video.h"
#include "templates.h"
#include "d_net.h"
#include "colormatcher.h"
#include "r_data/colormaps.h"
// [RH] Stretch values to make a 320x200 image best fit the screen
// without using fractional steppings
int CleanXfac, CleanYfac;
// [RH] Effective screen sizes that the above scale values give you
int CleanWidth, CleanHeight;
// Above minus 1 (or 1, if they are already 1)
int CleanXfac_1, CleanYfac_1, CleanWidth_1, CleanHeight_1;
// FillSimplePoly uses this
extern "C" short spanend[MAXHEIGHT];
CVAR (Bool, hud_scale, false, CVAR_ARCHIVE);
// For routines that take RGB colors, cache the previous lookup in case there
// are several repetitions with the same color.
static int LastPal = -1;
static uint32 LastRGB;
static int PalFromRGB(uint32 rgb)
{
if (LastPal >= 0 && LastRGB == rgb)
{
return LastPal;
}
// Quick check for black and white.
if (rgb == MAKEARGB(255,0,0,0))
{
LastPal = GPalette.BlackIndex;
}
else if (rgb == MAKEARGB(255,255,255,255))
{
LastPal = GPalette.WhiteIndex;
}
else
{
LastPal = ColorMatcher.Pick(RPART(rgb), GPART(rgb), BPART(rgb));
}
LastRGB = rgb;
return LastPal;
}
void STACK_ARGS DCanvas::DrawTexture (FTexture *img, double x, double y, int tags_first, ...)
{
va_list tags;
va_start(tags, tags_first);
- changed DrawTexture so that the parameters get parsed in the varargs function directly and that the virtual function that is getting called gets the fully prepared data. In order to avoid passing around tag lists, DrawTextV needs to parse everything itself and then pass a fully initialized structure to DrawTexture. This cannot be done if all variants require a varargs tag list. Apparently the only reason for the old approach was the 'hw' parameter which was never used.
2016-04-09 10:55:12 +00:00
DrawParms parms;
if (!ParseDrawTextureTags(img, x, y, tags_first, tags, &parms, false))
{
return;
}
- removed the unused x and y parameters from DrawTextureParms.
2016-04-09 10:59:50 +00:00
DrawTextureParms(img, parms);
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}
- removed the unused x and y parameters from DrawTextureParms.
2016-04-09 10:59:50 +00:00
void DCanvas::DrawTextureParms(FTexture *img, DrawParms &parms)
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{
#ifndef NO_SWRENDER
FTexture::Span unmaskedSpan[2];
const FTexture::Span **spanptr, *spans;
static short bottomclipper[MAXWIDTH], topclipper[MAXWIDTH];
if (parms.masked)
{
spanptr = &spans;
}
else
{
spanptr = NULL;
}
if (APART(parms.colorOverlay) != 0)
{
// The software renderer cannot invert the source without inverting the overlay
// too. That means if the source is inverted, we need to do the reverse of what
// the invert overlay flag says to do.
INTBOOL invertoverlay = (parms.style.Flags & STYLEF_InvertOverlay);
if (parms.style.Flags & STYLEF_InvertSource)
{
invertoverlay = !invertoverlay;
}
if (invertoverlay)
{
parms.colorOverlay = PalEntry(parms.colorOverlay).InverseColor();
}
// Note that this overrides DTA_Translation in software, but not in hardware.
FDynamicColormap *colormap = GetSpecialLights(MAKERGB(255,255,255),
parms.colorOverlay & MAKEARGB(0,255,255,255), 0);
parms.translation = &colormap->Maps[(APART(parms.colorOverlay)*NUMCOLORMAPS/255)*256];
}
if (parms.translation != NULL)
{
dc_colormap = (lighttable_t *)parms.translation;
}
else
{
dc_colormap = identitymap;
}
fixedcolormap = dc_colormap;
- floatification of some alpha parameters.
2016-03-22 12:35:16 +00:00
ESPSResult mode = R_SetPatchStyle (parms.style, parms.Alpha, 0, parms.fillcolor);
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BYTE *destorgsave = dc_destorg;
dc_destorg = screen->GetBuffer();
- changed DrawTexture so that the parameters get parsed in the varargs function directly and that the virtual function that is getting called gets the fully prepared data. In order to avoid passing around tag lists, DrawTextV needs to parse everything itself and then pass a fully initialized structure to DrawTexture. This cannot be done if all variants require a varargs tag list. Apparently the only reason for the old approach was the 'hw' parameter which was never used.
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if (dc_destorg == NULL)
{
I_FatalError("Attempt to write to buffer of hardware canvas");
}
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double x0 = parms.x - parms.left * parms.destwidth / parms.texwidth;
double y0 = parms.y - parms.top * parms.destheight / parms.texheight;
if (mode != DontDraw)
{
const BYTE *pixels;
int stop4;
if (spanptr == NULL)
{ // Create a single span for forced unmasked images
spans = unmaskedSpan;
unmaskedSpan[0].TopOffset = 0;
unmaskedSpan[0].Length = img->GetHeight();
unmaskedSpan[1].TopOffset = 0;
unmaskedSpan[1].Length = 0;
}
fixed_t centeryback = centeryfrac;
centeryfrac = 0;
sprtopscreen = FLOAT2FIXED(y0);
// There is not enough precision in the drawing routines to keep the full
// precision for y0. :(
sprtopscreen &= ~(FRACUNIT - 1);
double yscale = parms.destheight / img->GetHeight();
double iyscale = 1 / yscale;
spryscale = FLOAT2FIXED(yscale);
assert(spryscale > 2);
#if 0
// Fix precision errors that are noticeable at some resolutions
if ((y0 + parms.destheight) > (y0 + yscale * img->GetHeight()))
{
spryscale++;
}
#endif
sprflipvert = false;
//dc_iscale = FLOAT2FIXED(iyscale);
//dc_texturemid = FLOAT2FIXED((-y0) * iyscale);
//dc_iscale = 0xffffffffu / (unsigned)spryscale;
dc_iscale = DivScale32(1, spryscale);
dc_texturemid = FixedMul(-sprtopscreen, dc_iscale) + FixedMul(centeryfrac-FRACUNIT, dc_iscale);
fixed_t frac = 0;
double xiscale = img->GetWidth() / parms.destwidth;
double x2 = x0 + parms.destwidth;
if (bottomclipper[0] != parms.dclip)
{
clearbufshort(bottomclipper, screen->GetWidth(), (short)parms.dclip);
}
if (parms.uclip != 0)
{
if (topclipper[0] != parms.uclip)
{
clearbufshort(topclipper, screen->GetWidth(), (short)parms.uclip);
}
mceilingclip = topclipper;
}
else
{
mceilingclip = zeroarray;
}
mfloorclip = bottomclipper;
if (parms.flipX)
{
frac = (img->GetWidth() << FRACBITS) - 1;
xiscale = -xiscale;
}
if (parms.windowleft > 0 || parms.windowright < parms.texwidth)
{
double xscale = parms.destwidth / parms.texwidth;
x0 += parms.windowleft * xscale;
frac += FLOAT2FIXED(parms.windowleft);
x2 -= (parms.texwidth - parms.windowright) * xscale;
}
if (x0 < parms.lclip)
{
frac += FLOAT2FIXED((parms.lclip - x0) * xiscale);
x0 = parms.lclip;
}
if (x2 > parms.rclip)
{
x2 = parms.rclip;
}
// Drawing short output ought to fit in the data cache well enough
// if we draw one column at a time, so do that, since it's simpler.
if (parms.destheight < 32 || (parms.dclip - parms.uclip) < 32)
{
mode = DoDraw0;
}
dc_x = int(x0);
int x2_i = int(x2);
fixed_t xiscale_i = FLOAT2FIXED(xiscale);
if (mode == DoDraw0)
{
// One column at a time
stop4 = dc_x;
}
else // DoDraw1`
{
// Up to four columns at a time
stop4 = x2_i & ~3;
}
if (dc_x < x2_i)
{
while ((dc_x < stop4) && (dc_x & 3))
{
pixels = img->GetColumn(frac >> FRACBITS, spanptr);
R_DrawMaskedColumn(pixels, spans);
dc_x++;
frac += xiscale_i;
}
while (dc_x < stop4)
{
rt_initcols();
for (int zz = 4; zz; --zz)
{
pixels = img->GetColumn(frac >> FRACBITS, spanptr);
R_DrawMaskedColumnHoriz(pixels, spans);
dc_x++;
frac += xiscale_i;
}
rt_draw4cols(dc_x - 4);
}
while (dc_x < x2_i)
{
pixels = img->GetColumn(frac >> FRACBITS, spanptr);
R_DrawMaskedColumn(pixels, spans);
dc_x++;
frac += xiscale_i;
}
}
centeryfrac = centeryback;
}
R_FinishSetPatchStyle ();
dc_destorg = destorgsave;
if (ticdup != 0 && menuactive == MENU_Off)
{
NetUpdate();
}
#endif
}
- changed DrawTexture so that the parameters get parsed in the varargs function directly and that the virtual function that is getting called gets the fully prepared data. In order to avoid passing around tag lists, DrawTextV needs to parse everything itself and then pass a fully initialized structure to DrawTexture. This cannot be done if all variants require a varargs tag list. Apparently the only reason for the old approach was the 'hw' parameter which was never used.
2016-04-09 10:55:12 +00:00
bool DCanvas::ParseDrawTextureTags (FTexture *img, double x, double y, DWORD tag, va_list tags, DrawParms *parms, bool fortext) const
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{
INTBOOL boolval;
int intval;
bool translationset = false;
bool virtBottom;
bool fillcolorset = false;
if (img == NULL || img->UseType == FTexture::TEX_Null)
{
va_end(tags);
return false;
}
// Do some sanity checks on the coordinates.
if (x < -16383 || x > 16383 || y < -16383 || y > 16383)
{
va_end(tags);
return false;
}
virtBottom = false;
parms->texwidth = img->GetScaledWidthDouble();
parms->texheight = img->GetScaledHeightDouble();
parms->windowleft = 0;
parms->windowright = parms->texwidth;
parms->dclip = this->GetHeight();
parms->uclip = 0;
parms->lclip = 0;
parms->rclip = this->GetWidth();
parms->destwidth = parms->windowright;
parms->destheight = parms->texheight;
parms->top = img->GetScaledTopOffset();
parms->left = img->GetScaledLeftOffset();
- floatification of some alpha parameters.
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parms->Alpha = 1.f;
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parms->fillcolor = -1;
parms->remap = NULL;
parms->translation = NULL;
parms->colorOverlay = 0;
parms->alphaChannel = false;
parms->flipX = false;
parms->shadowAlpha = 0;
parms->shadowColor = 0;
parms->virtWidth = this->GetWidth();
parms->virtHeight = this->GetHeight();
parms->keepratio = false;
parms->style.BlendOp = 255; // Dummy "not set" value
parms->masked = true;
parms->bilinear = false;
parms->specialcolormap = NULL;
parms->colormapstyle = NULL;
parms->x = x;
parms->y = y;
// Parse the tag list for attributes. (For floating point attributes,
// consider that the C ABI dictates that all floats be promoted to
// doubles when passed as function arguments.)
while (tag != TAG_DONE)
{
va_list *more_p;
DWORD data;
switch (tag)
{
case TAG_IGNORE:
default:
data = va_arg(tags, DWORD);
break;
case TAG_MORE:
more_p = va_arg(tags, va_list *);
va_end (tags);
#ifndef NO_VA_COPY
va_copy (tags, *more_p);
#else
tags = *more_p;
#endif
break;
case DTA_DestWidth:
parms->destwidth = va_arg(tags, int);
break;
case DTA_DestWidthF:
parms->destwidth = va_arg(tags, double);
break;
case DTA_DestHeight:
parms->destheight = va_arg(tags, int);
break;
case DTA_DestHeightF:
parms->destheight = va_arg(tags, double);
break;
case DTA_Clean:
boolval = va_arg(tags, INTBOOL);
if (boolval)
{
parms->x = (parms->x - 160.0) * CleanXfac + (Width * 0.5);
parms->y = (parms->y - 100.0) * CleanYfac + (Height * 0.5);
parms->destwidth = parms->texwidth * CleanXfac;
parms->destheight = parms->texheight * CleanYfac;
}
break;
case DTA_CleanNoMove:
boolval = va_arg(tags, INTBOOL);
if (boolval)
{
parms->destwidth = parms->texwidth * CleanXfac;
parms->destheight = parms->texheight * CleanYfac;
}
break;
case DTA_CleanNoMove_1:
boolval = va_arg(tags, INTBOOL);
if (boolval)
{
parms->destwidth = parms->texwidth * CleanXfac_1;
parms->destheight = parms->texheight * CleanYfac_1;
}
break;
case DTA_320x200:
boolval = va_arg(tags, INTBOOL);
if (boolval)
{
parms->virtWidth = 320;
parms->virtHeight = 200;
}
break;
case DTA_Bottom320x200:
boolval = va_arg(tags, INTBOOL);
if (boolval)
{
parms->virtWidth = 320;
parms->virtHeight = 200;
}
virtBottom = true;
break;
case DTA_HUDRules:
{
bool xright = parms->x < 0;
bool ybot = parms->y < 0;
intval = va_arg(tags, int);
if (hud_scale)
{
parms->x *= CleanXfac;
if (intval == HUD_HorizCenter)
parms->x += Width * 0.5;
else if (xright)
parms->x = Width + parms->x;
parms->y *= CleanYfac;
if (ybot)
parms->y = Height + parms->y;
parms->destwidth = parms->texwidth * CleanXfac;
parms->destheight = parms->texheight * CleanYfac;
}
else
{
if (intval == HUD_HorizCenter)
parms->x += Width * 0.5;
else if (xright)
parms->x = Width + parms->x;
if (ybot)
parms->y = Height + parms->y;
}
}
break;
case DTA_VirtualWidth:
parms->virtWidth = va_arg(tags, int);
break;
case DTA_VirtualWidthF:
parms->virtWidth = va_arg(tags, double);
break;
case DTA_VirtualHeight:
parms->virtHeight = va_arg(tags, int);
break;
case DTA_VirtualHeightF:
parms->virtHeight = va_arg(tags, double);
break;
case DTA_Fullscreen:
boolval = va_arg(tags, INTBOOL);
if (boolval)
{
parms->x = parms->y = 0;
parms->virtWidth = img->GetScaledWidthDouble();
parms->virtHeight = img->GetScaledHeightDouble();
}
break;
case DTA_Alpha:
- floatification of some alpha parameters.
2016-03-22 12:35:16 +00:00
parms->Alpha = FIXED2FLOAT(MIN<fixed_t>(OPAQUE, va_arg (tags, fixed_t)));
- made AActor::alpha a floating point value - replaced some uses of FRACUNIT with OPAQUE when it was about translucency. - simplified some overly complicated translucency multiplications in the SBARINFO code.
2016-03-21 11:18:46 +00:00
break;
case DTA_AlphaF:
- floatification of some alpha parameters.
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parms->Alpha = (float)(MIN<double>(1., va_arg(tags, double)));
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break;
case DTA_AlphaChannel:
parms->alphaChannel = va_arg(tags, INTBOOL);
break;
case DTA_FillColor:
parms->fillcolor = va_arg(tags, uint32);
fillcolorset = true;
break;
case DTA_Translation:
parms->remap = va_arg(tags, FRemapTable *);
if (parms->remap != NULL && parms->remap->Inactive)
{ // If it's inactive, pretend we were passed NULL instead.
parms->remap = NULL;
}
break;
case DTA_ColorOverlay:
parms->colorOverlay = va_arg(tags, DWORD);
break;
case DTA_FlipX:
parms->flipX = va_arg(tags, INTBOOL);
break;
case DTA_TopOffset:
parms->top = va_arg(tags, int);
break;
case DTA_TopOffsetF:
parms->top = va_arg(tags, double);
break;
case DTA_LeftOffset:
parms->left = va_arg(tags, int);
break;
case DTA_LeftOffsetF:
parms->left = va_arg(tags, double);
break;
case DTA_CenterOffset:
if (va_arg(tags, int))
{
parms->left = parms->texwidth * 0.5;
parms->top = parms->texheight * 0.5;
}
break;
case DTA_CenterBottomOffset:
if (va_arg(tags, int))
{
parms->left = parms->texwidth * 0.5;
parms->top = parms->texheight;
}
break;
case DTA_WindowLeft:
parms->windowleft = va_arg(tags, int);
break;
case DTA_WindowLeftF:
parms->windowleft = va_arg(tags, double);
break;
case DTA_WindowRight:
parms->windowright = va_arg(tags, int);
break;
case DTA_WindowRightF:
parms->windowright = va_arg(tags, double);
break;
case DTA_ClipTop:
parms->uclip = va_arg(tags, int);
if (parms->uclip < 0)
{
parms->uclip = 0;
}
break;
case DTA_ClipBottom:
parms->dclip = va_arg(tags, int);
if (parms->dclip > this->GetHeight())
{
parms->dclip = this->GetHeight();
}
break;
case DTA_ClipLeft:
parms->lclip = va_arg(tags, int);
if (parms->lclip < 0)
{
parms->lclip = 0;
}
break;
case DTA_ClipRight:
parms->rclip = va_arg(tags, int);
if (parms->rclip > this->GetWidth())
{
parms->rclip = this->GetWidth();
}
break;
case DTA_ShadowAlpha:
- made AActor::alpha a floating point value - replaced some uses of FRACUNIT with OPAQUE when it was about translucency. - simplified some overly complicated translucency multiplications in the SBARINFO code.
2016-03-21 11:18:46 +00:00
parms->shadowAlpha = MIN<fixed_t>(OPAQUE, va_arg (tags, fixed_t));
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break;
case DTA_ShadowColor:
parms->shadowColor = va_arg(tags, int);
break;
case DTA_Shadow:
boolval = va_arg(tags, INTBOOL);
if (boolval)
{
parms->shadowAlpha = FRACUNIT/2;
parms->shadowColor = 0;
}
else
{
parms->shadowAlpha = 0;
}
break;
case DTA_Masked:
parms->masked = va_arg(tags, INTBOOL);
break;
case DTA_BilinearFilter:
parms->bilinear = va_arg(tags, INTBOOL);
break;
case DTA_KeepRatio:
// I think this is a terribly misleading name, since it actually turns
// *off* aspect ratio correction.
parms->keepratio = va_arg(tags, INTBOOL);
break;
case DTA_RenderStyle:
parms->style.AsDWORD = va_arg(tags, DWORD);
break;
case DTA_SpecialColormap:
parms->specialcolormap = va_arg(tags, FSpecialColormap *);
break;
case DTA_ColormapStyle:
parms->colormapstyle = va_arg(tags, FColormapStyle *);
break;
}
tag = va_arg(tags, DWORD);
}
va_end (tags);
if (parms->uclip >= parms->dclip || parms->lclip >= parms->rclip)
{
return false;
}
if (parms->virtWidth != Width || parms->virtHeight != Height)
{
VirtualToRealCoords(parms->x, parms->y, parms->destwidth, parms->destheight,
parms->virtWidth, parms->virtHeight, virtBottom, !parms->keepratio);
}
if (parms->destwidth <= 0 || parms->destheight <= 0)
{
return false;
}
if (parms->remap != NULL)
{
parms->translation = parms->remap->Remap;
}
if (parms->style.BlendOp == 255)
{
if (fillcolorset)
{
if (parms->alphaChannel)
{
parms->style = STYLE_Shaded;
}
- floatification of some alpha parameters.
2016-03-22 12:35:16 +00:00
else if (parms->Alpha < 1.f)
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{
parms->style = STYLE_TranslucentStencil;
}
else
{
parms->style = STYLE_Stencil;
}
}
- floatification of some alpha parameters.
2016-03-22 12:35:16 +00:00
else if (parms->Alpha < 1.f)
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{
parms->style = STYLE_Translucent;
}
else
{
parms->style = STYLE_Normal;
}
}
return true;
}
void DCanvas::VirtualToRealCoords(double &x, double &y, double &w, double &h,
double vwidth, double vheight, bool vbottom, bool handleaspect) const
{
int myratio = handleaspect ? CheckRatio (Width, Height) : 0;
fix: 21:9 AR stretching in intermission, end level screens
2016-03-02 20:07:11 +00:00
// if 21:9 AR, map to 16:9 for all callers.
// this allows for black bars and stops the stretching of fullscreen images
if (myratio == 6) {
myratio = 2;
}
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double right = x + w;
double bottom = y + h;
if (myratio != 0 && myratio != 4)
{ // The target surface is either 16:9 or 16:10, so expand the
// specified virtual size to avoid undesired stretching of the
// image. Does not handle non-4:3 virtual sizes. I'll worry about
// those if somebody expresses a desire to use them.
x = (x - vwidth * 0.5) * Width * 960 / (vwidth * BaseRatioSizes[myratio][0]) + Width * 0.5;
w = (right - vwidth * 0.5) * Width * 960 / (vwidth * BaseRatioSizes[myratio][0]) + Width * 0.5 - x;
}
else
{
x = x * Width / vwidth;
w = right * Width / vwidth - x;
}
if (myratio == 4)
{ // The target surface is 5:4
y = (y - vheight * 0.5) * Height * 600 / (vheight * BaseRatioSizes[myratio][1]) + Height * 0.5;
h = (bottom - vheight * 0.5) * Height * 600 / (vheight * BaseRatioSizes[myratio][1]) + Height * 0.5 - y;
if (vbottom)
{
y += (Height - Height * BaseRatioSizes[myratio][3] / 48.0) * 0.5;
}
}
else
{
y = y * Height / vheight;
h = bottom * Height / vheight - y;
}
}
void DCanvas::VirtualToRealCoordsFixed(fixed_t &x, fixed_t &y, fixed_t &w, fixed_t &h,
int vwidth, int vheight, bool vbottom, bool handleaspect) const
{
double dx, dy, dw, dh;
dx = FIXED2DBL(x);
dy = FIXED2DBL(y);
dw = FIXED2DBL(w);
dh = FIXED2DBL(h);
VirtualToRealCoords(dx, dy, dw, dh, vwidth, vheight, vbottom, handleaspect);
x = FLOAT2FIXED(dx);
y = FLOAT2FIXED(dy);
w = FLOAT2FIXED(dw);
h = FLOAT2FIXED(dh);
}
void DCanvas::VirtualToRealCoordsInt(int &x, int &y, int &w, int &h,
int vwidth, int vheight, bool vbottom, bool handleaspect) const
{
double dx, dy, dw, dh;
dx = x;
dy = y;
dw = w;
dh = h;
VirtualToRealCoords(dx, dy, dw, dh, vwidth, vheight, vbottom, handleaspect);
x = int(dx + 0.5);
y = int(dy + 0.5);
w = int(dx + dw + 0.5) - x;
h = int(dy + dh + 0.5) - y;
}
void DCanvas::FillBorder (FTexture *img)
{
int myratio = CheckRatio (Width, Height);
21:9 fix for black bars overlapping fullscreen images
2016-03-02 20:33:06 +00:00
// if 21:9 AR, fill borders akin to 16:9, since all fullscreen
// images are being drawn to that scale.
if (myratio == 6) {
myratio = 2;
}
Normalize line endings
2016-03-01 15:47:10 +00:00
if (myratio == 0)
{ // This is a 4:3 display, so no border to show
return;
}
int bordtop, bordbottom, bordleft, bordright, bord;
21:9 aspect ratio support - vid_aspect 6 forces 21:9
2016-03-02 10:31:12 +00:00
if (Is54Aspect(myratio))
Normalize line endings
2016-03-01 15:47:10 +00:00
{ // Screen is taller than it is wide
bordleft = bordright = 0;
bord = Height - Height * BaseRatioSizes[myratio][3] / 48;
bordtop = bord / 2;
bordbottom = bord - bordtop;
}
else
{ // Screen is wider than it is tall
bordtop = bordbottom = 0;
bord = Width - Width * BaseRatioSizes[myratio][3] / 48;
bordleft = bord / 2;
bordright = bord - bordleft;
}
if (img != NULL)
{
FlatFill (0, 0, Width, bordtop, img); // Top
FlatFill (0, bordtop, bordleft, Height - bordbottom, img); // Left
FlatFill (Width - bordright, bordtop, Width, Height - bordbottom, img); // Right
FlatFill (0, Height - bordbottom, Width, Height, img); // Bottom
}
else
{
Clear (0, 0, Width, bordtop, GPalette.BlackIndex, 0); // Top
Clear (0, bordtop, bordleft, Height - bordbottom, GPalette.BlackIndex, 0); // Left
Clear (Width - bordright, bordtop, Width, Height - bordbottom, GPalette.BlackIndex, 0); // Right
Clear (0, Height - bordbottom, Width, Height, GPalette.BlackIndex, 0); // Bottom
}
}
void DCanvas::PUTTRANSDOT (int xx, int yy, int basecolor, int level)
{
static int oldyy;
static int oldyyshifted;
#if 0
if(xx < 32)
cc += 7-(xx>>2);
else if(xx > (finit_width - 32))
cc += 7-((finit_width-xx) >> 2);
// if(cc==oldcc) //make sure that we don't double fade the corners.
// {
if(yy < 32)
cc += 7-(yy>>2);
else if(yy > (finit_height - 32))
cc += 7-((finit_height-yy) >> 2);
// }
if(cc > cm && cm != NULL)
{
cc = cm;
}
else if(cc > oldcc+6) // don't let the color escape from the fade table...
{
cc=oldcc+6;
}
#endif
if (yy == oldyy+1)
{
oldyy++;
oldyyshifted += GetPitch();
}
else if (yy == oldyy-1)
{
oldyy--;
oldyyshifted -= GetPitch();
}
else if (yy != oldyy)
{
oldyy = yy;
oldyyshifted = yy * GetPitch();
}
BYTE *spot = GetBuffer() + oldyyshifted + xx;
DWORD *bg2rgb = Col2RGB8[1+level];
DWORD *fg2rgb = Col2RGB8[63-level];
DWORD fg = fg2rgb[basecolor];
DWORD bg = bg2rgb[*spot];
bg = (fg+bg) | 0x1f07c1f;
*spot = RGB32k.All[bg&(bg>>15)];
}
void DCanvas::DrawLine(int x0, int y0, int x1, int y1, int palColor, uint32 realcolor)
//void DrawTransWuLine (int x0, int y0, int x1, int y1, BYTE palColor)
{
const int WeightingScale = 0;
const int WEIGHTBITS = 6;
const int WEIGHTSHIFT = 16-WEIGHTBITS;
const int NUMWEIGHTS = (1<<WEIGHTBITS);
const int WEIGHTMASK = (NUMWEIGHTS-1);
if (palColor < 0)
{
palColor = PalFromRGB(realcolor);
}
Lock();
int deltaX, deltaY, xDir;
if (y0 > y1)
{
int temp = y0; y0 = y1; y1 = temp;
temp = x0; x0 = x1; x1 = temp;
}
PUTTRANSDOT (x0, y0, palColor, 0);
if ((deltaX = x1 - x0) >= 0)
{
xDir = 1;
}
else
{
xDir = -1;
deltaX = -deltaX;
}
if ((deltaY = y1 - y0) == 0)
{ // horizontal line
if (x0 > x1)
{
swapvalues (x0, x1);
}
memset (GetBuffer() + y0*GetPitch() + x0, palColor, deltaX+1);
}
else if (deltaX == 0)
{ // vertical line
BYTE *spot = GetBuffer() + y0*GetPitch() + x0;
int pitch = GetPitch ();
do
{
*spot = palColor;
spot += pitch;
} while (--deltaY != 0);
}
else if (deltaX == deltaY)
{ // diagonal line.
BYTE *spot = GetBuffer() + y0*GetPitch() + x0;
int advance = GetPitch() + xDir;
do
{
*spot = palColor;
spot += advance;
} while (--deltaY != 0);
}
else
{
// line is not horizontal, diagonal, or vertical
fixed_t errorAcc = 0;
if (deltaY > deltaX)
{ // y-major line
fixed_t errorAdj = (((unsigned)deltaX << 16) / (unsigned)deltaY) & 0xffff;
if (xDir < 0)
{
if (WeightingScale == 0)
{
while (--deltaY)
{
errorAcc += errorAdj;
y0++;
int weighting = (errorAcc >> WEIGHTSHIFT) & WEIGHTMASK;
PUTTRANSDOT (x0 - (errorAcc >> 16), y0, palColor, weighting);
PUTTRANSDOT (x0 - (errorAcc >> 16) - 1, y0,
palColor, WEIGHTMASK - weighting);
}
}
else
{
while (--deltaY)
{
errorAcc += errorAdj;
y0++;
int weighting = ((errorAcc * WeightingScale) >> (WEIGHTSHIFT+8)) & WEIGHTMASK;
PUTTRANSDOT (x0 - (errorAcc >> 16), y0, palColor, weighting);
PUTTRANSDOT (x0 - (errorAcc >> 16) - 1, y0,
palColor, WEIGHTMASK - weighting);
}
}
}
else
{
if (WeightingScale == 0)
{
while (--deltaY)
{
errorAcc += errorAdj;
y0++;
int weighting = (errorAcc >> WEIGHTSHIFT) & WEIGHTMASK;
PUTTRANSDOT (x0 + (errorAcc >> 16), y0, palColor, weighting);
PUTTRANSDOT (x0 + (errorAcc >> 16) + xDir, y0,
palColor, WEIGHTMASK - weighting);
}
}
else
{
while (--deltaY)
{
errorAcc += errorAdj;
y0++;
int weighting = ((errorAcc * WeightingScale) >> (WEIGHTSHIFT+8)) & WEIGHTMASK;
PUTTRANSDOT (x0 + (errorAcc >> 16), y0, palColor, weighting);
PUTTRANSDOT (x0 + (errorAcc >> 16) + xDir, y0,
palColor, WEIGHTMASK - weighting);
}
}
}
}
else
{ // x-major line
fixed_t errorAdj = (((DWORD) deltaY << 16) / (DWORD) deltaX) & 0xffff;
if (WeightingScale == 0)
{
while (--deltaX)
{
errorAcc += errorAdj;
x0 += xDir;
int weighting = (errorAcc >> WEIGHTSHIFT) & WEIGHTMASK;
PUTTRANSDOT (x0, y0 + (errorAcc >> 16), palColor, weighting);
PUTTRANSDOT (x0, y0 + (errorAcc >> 16) + 1,
palColor, WEIGHTMASK - weighting);
}
}
else
{
while (--deltaX)
{
errorAcc += errorAdj;
x0 += xDir;
int weighting = ((errorAcc * WeightingScale) >> (WEIGHTSHIFT+8)) & WEIGHTMASK;
PUTTRANSDOT (x0, y0 + (errorAcc >> 16), palColor, weighting);
PUTTRANSDOT (x0, y0 + (errorAcc >> 16) + 1,
palColor, WEIGHTMASK - weighting);
}
}
}
PUTTRANSDOT (x1, y1, palColor, 0);
}
Unlock();
}
void DCanvas::DrawPixel(int x, int y, int palColor, uint32 realcolor)
{
if (palColor < 0)
{
palColor = PalFromRGB(realcolor);
}
Buffer[Pitch * y + x] = (BYTE)palColor;
}
//==========================================================================
//
// DCanvas :: Clear
//
// Set an area to a specified color.
//
//==========================================================================
void DCanvas::Clear (int left, int top, int right, int bottom, int palcolor, uint32 color)
{
int x, y;
BYTE *dest;
if (left == right || top == bottom)
{
return;
}
assert(left < right);
assert(top < bottom);
if (left >= Width || right <= 0 || top >= Height || bottom <= 0)
{
return;
}
left = MAX(0,left);
right = MIN(Width,right);
top = MAX(0,top);
bottom = MIN(Height,bottom);
if (palcolor < 0)
{
if (APART(color) != 255)
{
Dim(color, APART(color)/255.f, left, top, right - left, bottom - top);
return;
}
palcolor = PalFromRGB(color);
}
dest = Buffer + top * Pitch + left;
x = right - left;
for (y = top; y < bottom; y++)
{
memset(dest, palcolor, x);
dest += Pitch;
}
}
//==========================================================================
//
// DCanvas :: FillSimplePoly
//
// Fills a simple polygon with a texture. Here, "simple" means that a
// horizontal scanline at any vertical position within the polygon will
// not cross it more than twice.
//
// The originx, originy, scale, and rotation parameters specify
// transformation of the filling texture, not of the points.
//
// The points must be specified in clockwise order.
//
//==========================================================================
void DCanvas::FillSimplePoly(FTexture *tex, FVector2 *points, int npoints,
- changed angle parameter of FillSimplePoly.
2016-03-24 15:36:43 +00:00
double originx, double originy, double scalex, double scaley, DAngle rotation,
Normalize line endings
2016-03-01 15:47:10 +00:00
FDynamicColormap *colormap, int lightlevel)
{
#ifndef NO_SWRENDER
// Use an equation similar to player sprites to determine shade
fixed_t shade = LIGHT2SHADE(lightlevel) - 12*FRACUNIT;
float topy, boty, leftx, rightx;
int toppt, botpt, pt1, pt2;
int i;
int y1, y2, y;
fixed_t x;
- changed angle parameter of FillSimplePoly.
2016-03-24 15:36:43 +00:00
bool dorotate = rotation != 0.;
Normalize line endings
2016-03-01 15:47:10 +00:00
double cosrot, sinrot;
if (--npoints < 2 || Buffer == NULL)
{ // not a polygon or we're not locked
return;
}
// Find the extents of the polygon, in particular the highest and lowest points.
for (botpt = toppt = 0, boty = topy = points[0].Y, leftx = rightx = points[0].X, i = 1; i <= npoints; ++i)
{
if (points[i].Y < topy)
{
topy = points[i].Y;
toppt = i;
}
if (points[i].Y > boty)
{
boty = points[i].Y;
botpt = i;
}
if (points[i].X < leftx)
{
leftx = points[i].X;
}
if (points[i].X > rightx)
{
rightx = points[i].X;
}
}
if (topy >= Height || // off the bottom of the screen
boty <= 0 || // off the top of the screen
leftx >= Width || // off the right of the screen
rightx <= 0) // off the left of the screen
{
return;
}
- floatified texture scale values.
2016-03-26 12:37:44 +00:00
scalex /= tex->Scale.X;
scaley /= tex->Scale.Y;
Normalize line endings
2016-03-01 15:47:10 +00:00
- changed angle parameter of FillSimplePoly.
2016-03-24 15:36:43 +00:00
// Use the CRT's functions here.
- floatified p_trace, p_slopes and p_udmf.cpp. - major cleanup of unused code.
2016-03-30 14:30:22 +00:00
cosrot = cos(rotation.Radians());
sinrot = sin(rotation.Radians());
Normalize line endings
2016-03-01 15:47:10 +00:00
// Setup constant texture mapping parameters.
R_SetupSpanBits(tex);
R_SetSpanColormap(colormap != NULL ? &colormap->Maps[clamp(shade >> FRACBITS, 0, NUMCOLORMAPS-1) * 256] : identitymap);
R_SetSpanSource(tex->GetPixels());
scalex = double(1u << (32 - ds_xbits)) / scalex;
scaley = double(1u << (32 - ds_ybits)) / scaley;
ds_xstep = xs_RoundToInt(cosrot * scalex);
ds_ystep = xs_RoundToInt(sinrot * scaley);
// Travel down the right edge and create an outline of that edge.
pt1 = toppt;
pt2 = toppt + 1; if (pt2 > npoints) pt2 = 0;
y1 = xs_RoundToInt(points[pt1].Y + 0.5f);
do
{
x = FLOAT2FIXED(points[pt1].X + 0.5f);
y2 = xs_RoundToInt(points[pt2].Y + 0.5f);
if (y1 >= y2 || (y1 < 0 && y2 < 0) || (y1 >= Height && y2 >= Height))
{
}
else
{
fixed_t xinc = FLOAT2FIXED((points[pt2].X - points[pt1].X) / (points[pt2].Y - points[pt1].Y));
int y3 = MIN(y2, Height);
if (y1 < 0)
{
x += xinc * -y1;
y1 = 0;
}
for (y = y1; y < y3; ++y)
{
spanend[y] = clamp<short>(x >> FRACBITS, -1, Width);
x += xinc;
}
}
y1 = y2;
pt1 = pt2;
pt2++; if (pt2 > npoints) pt2 = 0;
} while (pt1 != botpt);
// Travel down the left edge and fill it in.
pt1 = toppt;
pt2 = toppt - 1; if (pt2 < 0) pt2 = npoints;
y1 = xs_RoundToInt(points[pt1].Y + 0.5f);
do
{
x = FLOAT2FIXED(points[pt1].X + 0.5f);
y2 = xs_RoundToInt(points[pt2].Y + 0.5f);
if (y1 >= y2 || (y1 < 0 && y2 < 0) || (y1 >= Height && y2 >= Height))
{
}
else
{
fixed_t xinc = FLOAT2FIXED((points[pt2].X - points[pt1].X) / (points[pt2].Y - points[pt1].Y));
int y3 = MIN(y2, Height);
if (y1 < 0)
{
x += xinc * -y1;
y1 = 0;
}
for (y = y1; y < y3; ++y)
{
int x1 = x >> FRACBITS;
int x2 = spanend[y];
if (x2 > x1 && x2 > 0 && x1 < Width)
{
x1 = MAX(x1, 0);
x2 = MIN(x2, Width);
#if 0
memset(this->Buffer + y * this->Pitch + x1, (int)tex, x2 - x1);
#else
ds_y = y;
ds_x1 = x1;
ds_x2 = x2 - 1;
- use typedefs for TVector<double> etc. (Better have this out of the way before messing around with this stuff...)
2016-03-10 19:44:53 +00:00
DVector2 tex(x1 - originx, y - originy);
Normalize line endings
2016-03-01 15:47:10 +00:00
if (dorotate)
{
double t = tex.X;
tex.X = t * cosrot - tex.Y * sinrot;
tex.Y = tex.Y * cosrot + t * sinrot;
}
ds_xfrac = xs_RoundToInt(tex.X * scalex);
ds_yfrac = xs_RoundToInt(tex.Y * scaley);
R_DrawSpan();
#endif
}
x += xinc;
}
}
y1 = y2;
pt1 = pt2;
pt2--; if (pt2 < 0) pt2 = npoints;
} while (pt1 != botpt);
#endif
}
/********************************/
/* */
/* Other miscellaneous routines */
/* */
/********************************/
//
// V_DrawBlock
// Draw a linear block of pixels into the view buffer.
//
void DCanvas::DrawBlock (int x, int y, int _width, int _height, const BYTE *src) const
{
int srcpitch = _width;
int destpitch;
BYTE *dest;
if (ClipBox (x, y, _width, _height, src, srcpitch))
{
return; // Nothing to draw
}
destpitch = Pitch;
dest = Buffer + y*Pitch + x;
do
{
memcpy (dest, src, _width);
src += srcpitch;
dest += destpitch;
} while (--_height);
}
//
// V_GetBlock
// Gets a linear block of pixels from the view buffer.
//
void DCanvas::GetBlock (int x, int y, int _width, int _height, BYTE *dest) const
{
const BYTE *src;
#ifdef RANGECHECK
if (x<0
||x+_width > Width
|| y<0
|| y+_height>Height)
{
I_Error ("Bad V_GetBlock");
}
#endif
src = Buffer + y*Pitch + x;
while (_height--)
{
memcpy (dest, src, _width);
src += Pitch;
dest += _width;
}
}
// Returns true if the box was completely clipped. False otherwise.
bool DCanvas::ClipBox (int &x, int &y, int &w, int &h, const BYTE *&src, const int srcpitch) const
{
if (x >= Width || y >= Height || x+w <= 0 || y+h <= 0)
{ // Completely clipped off screen
return true;
}
if (x < 0) // clip left edge
{
src -= x;
w += x;
x = 0;
}
if (x+w > Width) // clip right edge
{
w = Width - x;
}
if (y < 0) // clip top edge
{
src -= y*srcpitch;
h += y;
y = 0;
}
if (y+h > Height) // clip bottom edge
{
h = Height - y;
}
return false;
}
//==========================================================================
//
// V_SetBorderNeedRefresh
//
// Flag the border as in need of updating. (Probably because something that
// was on top of it has changed.
//
//==========================================================================
void V_SetBorderNeedRefresh()
{
if (screen != NULL)
{
BorderNeedRefresh = screen->GetPageCount();
}
}
//==========================================================================
//
// V_DrawFrame
//
// Draw a frame around the specified area using the view border
// frame graphics. The border is drawn outside the area, not in it.
//
//==========================================================================
void V_DrawFrame (int left, int top, int width, int height)
{
FTexture *p;
const gameborder_t *border = &gameinfo.Border;
// Sanity check for incomplete gameinfo
if (border == NULL)
return;
int offset = border->offset;
int right = left + width;
int bottom = top + height;
// Draw top and bottom sides.
p = TexMan[border->t];
screen->FlatFill(left, top - p->GetHeight(), right, top, p, true);
p = TexMan[border->b];
screen->FlatFill(left, bottom, right, bottom + p->GetHeight(), p, true);
// Draw left and right sides.
p = TexMan[border->l];
screen->FlatFill(left - p->GetWidth(), top, left, bottom, p, true);
p = TexMan[border->r];
screen->FlatFill(right, top, right + p->GetWidth(), bottom, p, true);
// Draw beveled corners.
screen->DrawTexture (TexMan[border->tl], left-offset, top-offset, TAG_DONE);
screen->DrawTexture (TexMan[border->tr], left+width, top-offset, TAG_DONE);
screen->DrawTexture (TexMan[border->bl], left-offset, top+height, TAG_DONE);
screen->DrawTexture (TexMan[border->br], left+width, top+height, TAG_DONE);
}
//==========================================================================
//
// V_DrawBorder
//
//==========================================================================
void V_DrawBorder (int x1, int y1, int x2, int y2)
{
FTextureID picnum;
if (level.info != NULL && level.info->BorderTexture.Len() != 0)
{
picnum = TexMan.CheckForTexture (level.info->BorderTexture, FTexture::TEX_Flat);
}
else
{
picnum = TexMan.CheckForTexture (gameinfo.BorderFlat, FTexture::TEX_Flat);
}
if (picnum.isValid())
{
screen->FlatFill (x1, y1, x2, y2, TexMan(picnum));
}
else
{
screen->Clear (x1, y1, x2, y2, 0, 0);
}
}
//==========================================================================
//
// R_DrawViewBorder
//
// Draws the border around the view for different size windows
//
//==========================================================================
int BorderNeedRefresh;
static void V_DrawViewBorder (void)
{
// [RH] Redraw the status bar if SCREENWIDTH > status bar width.
// Will draw borders around itself, too.
if (SCREENWIDTH > 320)
{
ST_SetNeedRefresh();
}
if (viewwidth == SCREENWIDTH)
{
return;
}
V_DrawBorder (0, 0, SCREENWIDTH, viewwindowy);
V_DrawBorder (0, viewwindowy, viewwindowx, viewheight + viewwindowy);
V_DrawBorder (viewwindowx + viewwidth, viewwindowy, SCREENWIDTH, viewheight + viewwindowy);
V_DrawBorder (0, viewwindowy + viewheight, SCREENWIDTH, ST_Y);
V_DrawFrame (viewwindowx, viewwindowy, viewwidth, viewheight);
V_MarkRect (0, 0, SCREENWIDTH, ST_Y);
}
//==========================================================================
//
// R_DrawTopBorder
//
// Draws the top border around the view for different size windows
//
//==========================================================================
static void V_DrawTopBorder ()
{
FTexture *p;
int offset;
if (viewwidth == SCREENWIDTH)
return;
offset = gameinfo.Border.offset;
if (viewwindowy < 34)
{
V_DrawBorder (0, 0, viewwindowx, 34);
V_DrawBorder (viewwindowx, 0, viewwindowx + viewwidth, viewwindowy);
V_DrawBorder (viewwindowx + viewwidth, 0, SCREENWIDTH, 34);
p = TexMan(gameinfo.Border.t);
screen->FlatFill(viewwindowx, viewwindowy - p->GetHeight(),
viewwindowx + viewwidth, viewwindowy, p, true);
p = TexMan(gameinfo.Border.l);
screen->FlatFill(viewwindowx - p->GetWidth(), viewwindowy,
viewwindowx, 35, p, true);
p = TexMan(gameinfo.Border.r);
screen->FlatFill(viewwindowx + viewwidth, viewwindowy,
viewwindowx + viewwidth + p->GetWidth(), 35, p, true);
p = TexMan(gameinfo.Border.tl);
screen->DrawTexture (p, viewwindowx - offset, viewwindowy - offset, TAG_DONE);
p = TexMan(gameinfo.Border.tr);
screen->DrawTexture (p, viewwindowx + viewwidth, viewwindowy - offset, TAG_DONE);
}
else
{
V_DrawBorder (0, 0, SCREENWIDTH, 34);
}
}
//==========================================================================
//
// R_RefreshViewBorder
//
// Draws the border around the player view, if needed.
//
//==========================================================================
void V_RefreshViewBorder ()
{
if (setblocks < 10)
{
if (BorderNeedRefresh)
{
BorderNeedRefresh--;
if (BorderTopRefresh)
{
BorderTopRefresh--;
}
V_DrawViewBorder();
}
else if (BorderTopRefresh)
{
BorderTopRefresh--;
V_DrawTopBorder();
}
}
}
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