/
v_draw.cpp
1603 lines (1399 loc) · 42 KB
/
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.
**---------------------------------------------------------------------------
**
*/
#include <stdio.h>
#include <stdarg.h>
#include "doomtype.h"
#include "v_video.h"
#include "r_defs.h"
#include "r_utility.h"
#include "doomstat.h"
#include "gi.h"
#include "g_level.h"
#include "sbar.h"
#include "d_player.h"
#include "i_video.h"
#include "g_levellocals.h"
#include "vm.h"
#include "hwrenderer/utility/hw_cvars.h"
CVAR(Float, underwater_fade_scalar, 1.0f, CVAR_ARCHIVE) // [Nash] user-settable underwater blend intensity
CUSTOM_CVAR(Int, uiscale, 0, CVAR_ARCHIVE | CVAR_NOINITCALL)
{
if (self < 0)
{
self = 0;
return;
}
if (StatusBar != NULL)
{
StatusBar->CallScreenSizeChanged();
}
setsizeneeded = true;
}
int GetUIScale(int altval)
{
int scaleval;
if (altval > 0) scaleval = altval;
else if (uiscale == 0)
{
// Default should try to scale to 640x400
int vscale = screen->GetHeight() / 400;
int hscale = screen->GetWidth() / 640;
scaleval = clamp(vscale, 1, hscale);
}
else scaleval = uiscale;
// block scales that result in something larger than the current screen.
int vmax = screen->GetHeight() / 200;
int hmax = screen->GetWidth() / 320;
int max = MAX(vmax, hmax);
return MAX(1,MIN(scaleval, max));
}
// The new console font is twice as high, so the scaling calculation must factor that in.
int GetConScale(int altval)
{
int scaleval;
if (altval > 0) scaleval = (altval+1) / 2;
else if (uiscale == 0)
{
// Default should try to scale to 640x400
int vscale = screen->GetHeight() / 800;
int hscale = screen->GetWidth() / 1280;
scaleval = clamp(vscale, 1, hscale);
}
else scaleval = (uiscale+1) / 2;
// block scales that result in something larger than the current screen.
int vmax = screen->GetHeight() / 400;
int hmax = screen->GetWidth() / 640;
int max = MAX(vmax, hmax);
return MAX(1, MIN(scaleval, max));
}
// [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;
//==========================================================================
//
// ZScript wrappers for inlines
//
//==========================================================================
DEFINE_ACTION_FUNCTION(_Screen, GetWidth)
{
PARAM_PROLOGUE;
ACTION_RETURN_INT(screen->GetWidth());
}
DEFINE_ACTION_FUNCTION(_Screen, GetHeight)
{
PARAM_PROLOGUE;
ACTION_RETURN_INT(screen->GetHeight());
}
DEFINE_ACTION_FUNCTION(_Screen, PaletteColor)
{
PARAM_PROLOGUE;
PARAM_INT(index);
if (index < 0 || index > 255) index = 0;
else index = GPalette.BaseColors[index];
ACTION_RETURN_INT(index);
}
//==========================================================================
//
// Internal texture drawing function
//
//==========================================================================
void DFrameBuffer::DrawTexture (FTexture *img, double x, double y, int tags_first, ...)
{
Va_List tags;
va_start(tags.list, tags_first);
DrawParms parms;
bool res = ParseDrawTextureTags(img, x, y, tags_first, tags, &parms, false);
va_end(tags.list);
if (!res)
{
return;
}
DrawTextureParms(img, parms);
}
//==========================================================================
//
// ZScript texture drawing function
//
//==========================================================================
int ListGetInt(VMVa_List &tags);
void DFrameBuffer::DrawTexture(FTexture *img, double x, double y, VMVa_List &args)
{
DrawParms parms;
uint32_t tag = ListGetInt(args);
bool res = ParseDrawTextureTags(img, x, y, tag, args, &parms, false);
if (!res) return;
DrawTextureParms(img, parms);
}
DEFINE_ACTION_FUNCTION(_Screen, DrawTexture)
{
PARAM_PROLOGUE;
PARAM_INT(texid);
PARAM_BOOL(animate);
PARAM_FLOAT(x);
PARAM_FLOAT(y);
PARAM_VA_POINTER(va_reginfo) // Get the hidden type information array
if (!screen->HasBegun2D()) ThrowAbortException(X_OTHER, "Attempt to draw to screen outside a draw function");
FTexture *tex = TexMan.ByIndex(texid, animate);
VMVa_List args = { param + 4, 0, numparam - 5, va_reginfo + 4 };
screen->DrawTexture(tex, x, y, args);
return 0;
}
//==========================================================================
//
// common drawing function
//
//==========================================================================
void DFrameBuffer::DrawTextureParms(FTexture *img, DrawParms &parms)
{
m2DDrawer.AddTexture(img, parms);
}
//==========================================================================
//
// ZScript arbitrary textured shape drawing functions
//
//==========================================================================
void DFrameBuffer::DrawShape(FTexture *img, DShape2D *shape, int tags_first, ...)
{
Va_List tags;
va_start(tags.list, tags_first);
DrawParms parms;
bool res = ParseDrawTextureTags(img, 0, 0, tags_first, tags, &parms, false);
va_end(tags.list);
if (!res) return;
m2DDrawer.AddShape(img, shape, parms);
}
void DFrameBuffer::DrawShape(FTexture *img, DShape2D *shape, VMVa_List &args)
{
DrawParms parms;
uint32_t tag = ListGetInt(args);
bool res = ParseDrawTextureTags(img, 0, 0, tag, args, &parms, false);
if (!res) return;
m2DDrawer.AddShape(img, shape, parms);
}
DEFINE_ACTION_FUNCTION(_Screen, DrawShape)
{
PARAM_PROLOGUE;
PARAM_INT(texid);
PARAM_BOOL(animate);
PARAM_POINTER(shape, DShape2D);
PARAM_VA_POINTER(va_reginfo) // Get the hidden type information array
if (!screen->HasBegun2D()) ThrowAbortException(X_OTHER, "Attempt to draw to screen outside a draw function");
FTexture *tex = TexMan.ByIndex(texid, animate);
VMVa_List args = { param + 3, 0, numparam - 4, va_reginfo + 3 };
screen->DrawShape(tex, shape, args);
return 0;
}
//==========================================================================
//
// Clipping rect
//
//==========================================================================
void DFrameBuffer::SetClipRect(int x, int y, int w, int h)
{
clipleft = clamp(x, 0, GetWidth());
clipwidth = clamp(w, -1, GetWidth() - x);
cliptop = clamp(y, 0, GetHeight());
clipheight = clamp(h, -1, GetHeight() - y);
}
DEFINE_ACTION_FUNCTION(_Screen, SetClipRect)
{
PARAM_PROLOGUE;
PARAM_INT(x);
PARAM_INT(y);
PARAM_INT(w);
PARAM_INT(h);
screen->SetClipRect(x, y, w, h);
return 0;
}
DEFINE_ACTION_FUNCTION(_Screen, ClearClipRect)
{
PARAM_PROLOGUE;
screen->ClearClipRect();
return 0;
}
void DFrameBuffer::GetClipRect(int *x, int *y, int *w, int *h)
{
if (x) *x = clipleft;
if (y) *y = cliptop;
if (w) *w = clipwidth;
if (h) *h = clipheight;
}
DEFINE_ACTION_FUNCTION(_Screen, GetClipRect)
{
PARAM_PROLOGUE;
int x, y, w, h;
screen->GetClipRect(&x, &y, &w, &h);
if (numret > 0) ret[0].SetInt(x);
if (numret > 1) ret[1].SetInt(y);
if (numret > 2) ret[2].SetInt(w);
if (numret > 3) ret[3].SetInt(h);
return MIN(numret, 4);
}
DEFINE_ACTION_FUNCTION(_Screen, GetViewWindow)
{
PARAM_PROLOGUE;
if (numret > 0) ret[0].SetInt(viewwindowx);
if (numret > 1) ret[1].SetInt(viewwindowy);
if (numret > 2) ret[2].SetInt(viewwidth);
if (numret > 3) ret[3].SetInt(viewheight);
return MIN(numret, 4);
}
//==========================================================================
//
// Draw parameter parsing
//
//==========================================================================
bool DFrameBuffer::SetTextureParms(DrawParms *parms, FTexture *img, double xx, double yy) const
{
if (img != NULL)
{
parms->x = xx;
parms->y = yy;
parms->texwidth = img->GetDisplayWidthDouble();
parms->texheight = img->GetDisplayHeightDouble();
if (parms->top == INT_MAX || parms->fortext)
{
parms->top = img->GetDisplayTopOffset();
}
if (parms->left == INT_MAX || parms->fortext)
{
parms->left = img->GetDisplayLeftOffset();
}
if (parms->destwidth == INT_MAX || parms->fortext)
{
parms->destwidth = img->GetDisplayWidthDouble();
}
if (parms->destheight == INT_MAX || parms->fortext)
{
parms->destheight = img->GetDisplayHeightDouble();
}
switch (parms->cleanmode)
{
default:
break;
case DTA_Clean:
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:
parms->destwidth = parms->texwidth * CleanXfac;
parms->destheight = parms->texheight * CleanYfac;
break;
case DTA_CleanNoMove_1:
parms->destwidth = parms->texwidth * CleanXfac_1;
parms->destheight = parms->texheight * CleanYfac_1;
break;
case DTA_Fullscreen:
case DTA_FullscreenEx:
{
double aspect;
double srcwidth = img->GetDisplayWidthDouble();
double srcheight = img->GetDisplayHeightDouble();
int autoaspect = parms->fsscalemode;
aspect = autoaspect == 0 || (srcwidth == 320 && srcheight == 200) || (srcwidth == 640 && srcheight == 200)? 1.333 : srcwidth / srcheight;
parms->x = parms->y = 0;
parms->keepratio = true;
auto screenratio = ActiveRatio(GetWidth(), GetHeight());
if (autoaspect == 3)
{
if (screenratio >= aspect || aspect < 1.4) autoaspect = 1; // screen is wider than the image -> pillarbox it. 4:3 images must also be pillarboxes if the screen is taller than the image
else if (screenratio > 1.32) autoaspect = 2; // on anything 4:3 and wider crop the sides of the image.
else
{
// special case: Crop image to 4:3 and then letterbox this. This avoids too much cropping on narrow windows.
double width4_3 = srcheight * (4. / 3.);
parms->destwidth = (double)GetWidth() * srcwidth / width4_3;
parms->destheight = GetHeight() * screenratio * (3. / 4.); // use 4:3 for the image
parms->y = (GetHeight() - parms->destheight) / 2;
parms->x = -(srcwidth - width4_3) / 2;
return false; // Do not call VirtualToRealCoords for this!
}
}
if ((screenratio > aspect) ^ (autoaspect == 2))
{
// pillarboxed or vertically cropped (i.e. scale to height)
parms->destheight = GetHeight();
parms->destwidth =GetWidth() * aspect / screenratio;
parms->x = (GetWidth() - parms->destwidth) / 2;
}
else
{
// letterboxed or horizontally cropped (i.e. scale to width)
parms->destwidth = GetWidth();
parms->destheight = GetHeight() * screenratio / aspect;
parms->y = (GetHeight() - parms->destheight) / 2;
}
return false; // Do not call VirtualToRealCoords for this!
}
case DTA_HUDRules:
case DTA_HUDRulesC:
{
// Note that this has been deprecated because the HUD should be drawn by the status bar.
bool xright = parms->x < 0;
bool ybot = parms->y < 0;
DVector2 scale = StatusBar->GetHUDScale();
parms->x *= scale.X;
if (parms->cleanmode == DTA_HUDRulesC)
parms->x += Width * 0.5;
else if (xright)
parms->x = Width + parms->x;
parms->y *= scale.Y;
if (ybot)
parms->y = Height + parms->y;
parms->destwidth = parms->texwidth * scale.X;
parms->destheight = parms->texheight * scale.Y;
break;
}
}
if (parms->virtWidth != Width || parms->virtHeight != Height)
{
VirtualToRealCoords(parms->x, parms->y, parms->destwidth, parms->destheight,
parms->virtWidth, parms->virtHeight, parms->virtBottom, !parms->keepratio);
}
}
return false;
}
//==========================================================================
//
// template helpers
//
//==========================================================================
static void ListEnd(Va_List &tags)
{
va_end(tags.list);
}
static int ListGetInt(Va_List &tags)
{
return va_arg(tags.list, int);
}
static inline double ListGetDouble(Va_List &tags)
{
return va_arg(tags.list, double);
}
static inline FSpecialColormap * ListGetSpecialColormap(Va_List &tags)
{
return va_arg(tags.list, FSpecialColormap *);
}
static void ListEnd(VMVa_List &tags)
{
}
int ListGetInt(VMVa_List &tags)
{
if (tags.curindex < tags.numargs)
{
if (tags.reginfo[tags.curindex] == REGT_INT)
{
return tags.args[tags.curindex++].i;
}
ThrowAbortException(X_OTHER, "Invalid parameter in draw function, int expected");
}
return TAG_DONE;
}
static inline double ListGetDouble(VMVa_List &tags)
{
if (tags.curindex < tags.numargs)
{
if (tags.reginfo[tags.curindex] == REGT_FLOAT)
{
return tags.args[tags.curindex++].f;
}
if (tags.reginfo[tags.curindex] == REGT_INT)
{
return tags.args[tags.curindex++].i;
}
ThrowAbortException(X_OTHER, "Invalid parameter in draw function, float expected");
}
return 0;
}
static inline FSpecialColormap * ListGetSpecialColormap(VMVa_List &tags)
{
ThrowAbortException(X_OTHER, "Invalid tag in draw function");
return nullptr;
}
//==========================================================================
//
// Main taglist parsing
//
//==========================================================================
template<class T>
bool DFrameBuffer::ParseDrawTextureTags(FTexture *img, double x, double y, uint32_t tag, T& tags, DrawParms *parms, bool fortext) const
{
INTBOOL boolval;
int intval;
bool translationset = false;
bool fillcolorset = false;
if (!fortext)
{
if (img == NULL || !img->isValid())
{
ListEnd(tags);
return false;
}
}
// Do some sanity checks on the coordinates.
if (x < -16383 || x > 16383 || y < -16383 || y > 16383)
{
ListEnd(tags);
return false;
}
parms->fortext = fortext;
parms->windowleft = 0;
parms->windowright = INT_MAX;
parms->dclip = this->GetHeight();
parms->uclip = 0;
parms->lclip = 0;
parms->rclip = this->GetWidth();
parms->left = INT_MAX;
parms->top = INT_MAX;
parms->destwidth = INT_MAX;
parms->destheight = INT_MAX;
parms->Alpha = 1.f;
parms->fillcolor = -1;
parms->remap = NULL;
parms->colorOverlay = 0;
parms->alphaChannel = false;
parms->flipX = false;
parms->flipY = false;
parms->color = 0xffffffff;
//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->desaturate = 0;
parms->cleanmode = DTA_Base;
parms->scalex = parms->scaley = 1;
parms->cellx = parms->celly = 0;
parms->maxstrlen = INT_MAX;
parms->virtBottom = false;
parms->srcx = 0.;
parms->srcy = 0.;
parms->srcwidth = 1.;
parms->srcheight = 1.;
parms->burn = false;
parms->monospace = EMonospacing::Off;
parms->spacing = 0;
// 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)
{
switch (tag)
{
default:
ListGetInt(tags);
break;
case DTA_DestWidth:
assert(fortext == false);
if (fortext) return false;
parms->cleanmode = DTA_Base;
parms->destwidth = ListGetInt(tags);
break;
case DTA_DestWidthF:
assert(fortext == false);
if (fortext) return false;
parms->cleanmode = DTA_Base;
parms->destwidth = ListGetDouble(tags);
break;
case DTA_DestHeight:
assert(fortext == false);
if (fortext) return false;
parms->cleanmode = DTA_Base;
parms->destheight = ListGetInt(tags);
break;
case DTA_DestHeightF:
assert(fortext == false);
if (fortext) return false;
parms->cleanmode = DTA_Base;
parms->destheight = ListGetDouble(tags);
break;
case DTA_Clean:
boolval = ListGetInt(tags);
if (boolval)
{
parms->scalex = 1;
parms->scaley = 1;
parms->cleanmode = tag;
}
break;
case DTA_CleanNoMove:
boolval = ListGetInt(tags);
if (boolval)
{
parms->scalex = CleanXfac;
parms->scaley = CleanYfac;
parms->cleanmode = tag;
}
break;
case DTA_CleanNoMove_1:
boolval = ListGetInt(tags);
if (boolval)
{
parms->scalex = CleanXfac_1;
parms->scaley = CleanYfac_1;
parms->cleanmode = tag;
}
break;
case DTA_320x200:
boolval = ListGetInt(tags);
if (boolval)
{
parms->cleanmode = DTA_Base;
parms->scalex = 1;
parms->scaley = 1;
parms->virtWidth = 320;
parms->virtHeight = 200;
}
break;
case DTA_Bottom320x200:
boolval = ListGetInt(tags);
if (boolval)
{
parms->cleanmode = DTA_Base;
parms->scalex = 1;
parms->scaley = 1;
parms->virtWidth = 320;
parms->virtHeight = 200;
}
parms->virtBottom = true;
break;
case DTA_HUDRules:
intval = ListGetInt(tags);
parms->cleanmode = intval == HUD_HorizCenter ? DTA_HUDRulesC : DTA_HUDRules;
break;
case DTA_VirtualWidth:
parms->cleanmode = DTA_Base;
parms->virtWidth = ListGetInt(tags);
break;
case DTA_VirtualWidthF:
parms->cleanmode = DTA_Base;
parms->virtWidth = ListGetDouble(tags);
break;
case DTA_VirtualHeight:
parms->cleanmode = DTA_Base;
parms->virtHeight = ListGetInt(tags);
break;
case DTA_VirtualHeightF:
parms->cleanmode = DTA_Base;
parms->virtHeight = ListGetDouble(tags);
break;
case DTA_Fullscreen:
boolval = ListGetInt(tags);
if (boolval)
{
assert(fortext == false);
if (img == NULL) return false;
parms->cleanmode = DTA_Fullscreen;
parms->fsscalemode = (uint8_t)gameinfo.fullscreenautoaspect;
parms->virtWidth = img->GetDisplayWidthDouble();
parms->virtHeight = img->GetDisplayHeightDouble();
}
break;
case DTA_FullscreenEx:
intval = ListGetInt(tags);
if (intval >= 0 && intval <= 3)
{
assert(fortext == false);
if (img == NULL) return false;
parms->cleanmode = DTA_Fullscreen;
parms->fsscalemode = (uint8_t)intval;
parms->virtWidth = img->GetDisplayWidthDouble();
parms->virtHeight = img->GetDisplayHeightDouble();
}
break;
case DTA_Alpha:
parms->Alpha = (float)(MIN<double>(1., ListGetDouble(tags)));
break;
case DTA_AlphaChannel:
parms->alphaChannel = ListGetInt(tags);
break;
case DTA_FillColor:
parms->fillcolor = ListGetInt(tags);
if (parms->fillcolor != ~0u)
{
fillcolorset = true;
}
else if (parms->fillcolor != 0)
{
// The crosshair is the only thing which uses a non-black fill color.
parms->fillcolor = PalEntry(ColorMatcher.Pick(parms->fillcolor), RPART(parms->fillcolor), GPART(parms->fillcolor), BPART(parms->fillcolor));
}
break;
case DTA_TranslationIndex:
parms->remap = TranslationToTable(ListGetInt(tags));
break;
case DTA_ColorOverlay:
parms->colorOverlay = ListGetInt(tags);
break;
case DTA_Color:
parms->color = ListGetInt(tags);
break;
case DTA_FlipX:
parms->flipX = ListGetInt(tags);
break;
case DTA_FlipY:
parms->flipY = ListGetInt(tags);
break;
case DTA_SrcX:
parms->srcx = ListGetDouble(tags) / img->GetDisplayWidthDouble();
break;
case DTA_SrcY:
parms->srcy = ListGetDouble(tags) / img->GetDisplayHeightDouble();
break;
case DTA_SrcWidth:
parms->srcwidth = ListGetDouble(tags) / img->GetDisplayWidthDouble();
break;
case DTA_SrcHeight:
parms->srcheight = ListGetDouble(tags) / img->GetDisplayHeightDouble();
break;
case DTA_TopOffset:
assert(fortext == false);
if (fortext) return false;
parms->top = ListGetInt(tags);
break;
case DTA_TopOffsetF:
assert(fortext == false);
if (fortext) return false;
parms->top = ListGetDouble(tags);
break;
case DTA_LeftOffset:
assert(fortext == false);
if (fortext) return false;
parms->left = ListGetInt(tags);
break;
case DTA_LeftOffsetF:
assert(fortext == false);
if (fortext) return false;
parms->left = ListGetDouble(tags);
break;
case DTA_CenterOffset:
assert(fortext == false);
if (fortext) return false;
if (ListGetInt(tags))
{
parms->left = img->GetDisplayWidthDouble() * 0.5;
parms->top = img->GetDisplayHeightDouble() * 0.5;
}
break;
case DTA_CenterBottomOffset:
assert(fortext == false);
if (fortext) return false;
if (ListGetInt(tags))
{
parms->left = img->GetDisplayWidthDouble() * 0.5;
parms->top = img->GetDisplayHeightDouble();
}
break;
case DTA_WindowLeft:
assert(fortext == false);
if (fortext) return false;
parms->windowleft = ListGetInt(tags);
break;
case DTA_WindowLeftF:
assert(fortext == false);
if (fortext) return false;
parms->windowleft = ListGetDouble(tags);
break;
case DTA_WindowRight:
assert(fortext == false);
if (fortext) return false;
parms->windowright = ListGetInt(tags);
break;
case DTA_WindowRightF:
assert(fortext == false);
if (fortext) return false;
parms->windowright = ListGetDouble(tags);
break;
case DTA_ClipTop:
parms->uclip = ListGetInt(tags);
if (parms->uclip < 0)
{
parms->uclip = 0;
}
break;
case DTA_ClipBottom:
parms->dclip = ListGetInt(tags);
if (parms->dclip > this->GetHeight())
{
parms->dclip = this->GetHeight();
}
break;
case DTA_ClipLeft:
parms->lclip = ListGetInt(tags);
if (parms->lclip < 0)
{
parms->lclip = 0;
}
break;
case DTA_ClipRight:
parms->rclip = ListGetInt(tags);
if (parms->rclip > this->GetWidth())
{
parms->rclip = this->GetWidth();
}
break;
case DTA_ShadowAlpha:
//parms->shadowAlpha = (float)MIN(1., ListGetDouble(tags));
break;
case DTA_ShadowColor:
parms->shadowColor = ListGetInt(tags);
break;
case DTA_Shadow:
boolval = ListGetInt(tags);
if (boolval)
{
//parms->shadowAlpha = 0.5;
parms->shadowColor = 0;
}
else
{
//parms->shadowAlpha = 0;
}
break;
case DTA_Masked:
parms->masked = ListGetInt(tags);
break;
case DTA_BilinearFilter:
parms->bilinear = ListGetInt(tags);
break;
case DTA_KeepRatio:
// I think this is a terribly misleading name, since it actually turns
// *off* aspect ratio correction.
parms->keepratio = ListGetInt(tags);
break;
case DTA_RenderStyle:
parms->style.AsDWORD = ListGetInt(tags);
break;
case DTA_LegacyRenderStyle: // mainly for ZScript which does not handle FRenderStyle that well.
parms->style = (ERenderStyle)ListGetInt(tags);
break;
case DTA_SpecialColormap:
parms->specialcolormap = ListGetSpecialColormap(tags);
break;
case DTA_Desaturate:
parms->desaturate = ListGetInt(tags);
break;
case DTA_TextLen:
parms->maxstrlen = ListGetInt(tags);
break;
case DTA_CellX:
parms->cellx = ListGetInt(tags);
break;
case DTA_CellY:
parms->celly = ListGetInt(tags);
break;
case DTA_Monospace:
parms->monospace = ListGetInt(tags);
break;
case DTA_Spacing:
parms->spacing = ListGetInt(tags);
break;
case DTA_Burn:
parms->burn = true;
break;
}
tag = ListGetInt(tags);
}
ListEnd(tags);
if (parms->remap != nullptr && parms->remap->Inactive)
{ // If it's inactive, pretend we were passed NULL instead.
parms->remap = nullptr;
}
// intersect with the canvas's clipping rectangle.
if (clipwidth >= 0 && clipheight >= 0)
{
if (parms->lclip < clipleft) parms->lclip = clipleft;
if (parms->rclip > clipleft + clipwidth) parms->rclip = clipleft + clipwidth;
if (parms->uclip < cliptop) parms->uclip = cliptop;
if (parms->dclip > cliptop + clipheight) parms->dclip = cliptop + clipheight;
}
if (parms->uclip >= parms->dclip || parms->lclip >= parms->rclip)
{
return false;
}
if (img != NULL)
{
SetTextureParms(parms, img, x, y);
if (parms->destwidth <= 0 || parms->destheight <= 0)
{
return false;
}