Directory restructuring to make it easier to version projects that don't build zdoom.exe.
SVN r4 (trunk)
This commit is contained in:
Randy Heit
commit
cf11cbdb30
821 changed files with 361202 additions and 0 deletions
665
src/v_draw.cpp
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665
src/v_draw.cpp
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@ -0,0 +1,665 @@
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/*
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** v_draw.cpp
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** Draw patches and blocks to a canvas
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**
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**---------------------------------------------------------------------------
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** Copyright 1998-2005 Randy Heit
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** All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
|
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** modification, are permitted provided that the following conditions
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** are met:
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||||
**
|
||||
** 1. Redistributions of source code must retain the above copyright
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||||
** 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.
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** 3. The name of the author may not be used to endorse or promote products
|
||||
** derived from this software without specific prior written permission.
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**
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||||
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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||||
** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
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** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
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** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**---------------------------------------------------------------------------
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**
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*/
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#include <stdio.h>
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#include <stdarg.h>
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#include "doomtype.h"
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#include "v_video.h"
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#include "m_swap.h"
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#include "r_defs.h"
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#include "r_draw.h"
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#include "r_things.h"
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#include "i_system.h"
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#include "i_video.h"
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#include "templates.h"
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// [RH] Stretch values to make a 320x200 image best fit the screen
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// without using fractional steppings
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int CleanXfac, CleanYfac;
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// [RH] Effective screen sizes that the above scale values give you
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int CleanWidth, CleanHeight;
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CVAR (Bool, hud_scale, false, CVAR_ARCHIVE);
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void STACK_ARGS DCanvas::DrawTexture (FTexture *img, int x0, int y0, DWORD tags_first, ...)
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{
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FTexture::Span unmaskedSpan[2];
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const FTexture::Span **spanptr, *spans;
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static BYTE identitymap[256];
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static short bottomclipper[MAXWIDTH], topclipper[MAXWIDTH];
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va_list tags;
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DWORD tag;
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BOOL boolval;
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int intval;
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if (img == NULL || img->UseType == FTexture::TEX_Null)
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{
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return;
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}
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int windowleft = 0;
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int windowright = img->GetWidth();
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int dclip = this->GetHeight();
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int uclip = 0;
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int lclip = 0;
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int rclip = this->GetWidth();
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int destwidth = windowright << FRACBITS;
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int destheight = img->GetHeight() << FRACBITS;
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int top = img->TopOffset;
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int left = img->LeftOffset;
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fixed_t alpha = FRACUNIT;
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int fillcolor = -1;
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const BYTE *translation = NULL;
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BOOL alphaChannel = false;
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BOOL flipX = false;
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fixed_t shadowAlpha = 0;
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int shadowColor = 0;
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int virtWidth = this->GetWidth();
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int virtHeight = this->GetHeight();
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BOOL keepratio = false;
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x0 <<= FRACBITS;
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y0 <<= FRACBITS;
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spanptr = &spans;
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// Parse the tag list for attributes
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va_start (tags, tags_first);
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tag = tags_first;
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while (tag != TAG_DONE)
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{
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va_list more_p;
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DWORD data;
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switch (tag)
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{
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case TAG_IGNORE:
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default:
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data = va_arg (tags, DWORD);
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break;
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case TAG_MORE:
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more_p = va_arg (tags, va_list);
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va_end (tags);
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tags = more_p;
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break;
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case DTA_DestWidth:
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destwidth = va_arg (tags, int) << FRACBITS;
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break;
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case DTA_DestHeight:
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destheight = va_arg (tags, int) << FRACBITS;
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break;
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case DTA_Clean:
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boolval = va_arg (tags, BOOL);
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if (boolval)
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{
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x0 = (x0 - 160*FRACUNIT) * CleanXfac + (Width * (FRACUNIT/2));
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y0 = (y0 - 100*FRACUNIT) * CleanYfac + (Height * (FRACUNIT/2));
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destwidth = img->GetWidth() * CleanXfac * FRACUNIT;
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destheight = img->GetHeight() * CleanYfac * FRACUNIT;
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}
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break;
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case DTA_CleanNoMove:
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boolval = va_arg (tags, BOOL);
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if (boolval)
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{
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destwidth = img->GetWidth() * CleanXfac * FRACUNIT;
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destheight = img->GetHeight() * CleanYfac * FRACUNIT;
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}
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break;
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case DTA_320x200:
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boolval = va_arg (tags, BOOL);
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if (boolval)
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{
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virtWidth = 320;
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virtHeight = 200;
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}
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break;
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case DTA_HUDRules:
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{
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bool xright = x0 < 0;
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bool ybot = y0 < 0;
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intval = va_arg (tags, int);
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if (hud_scale)
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{
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x0 *= CleanXfac;
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if (intval == HUD_HorizCenter)
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x0 += Width * FRACUNIT / 2;
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else if (xright)
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x0 = Width * FRACUNIT + x0;
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y0 *= CleanYfac;
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if (ybot)
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y0 = Height * FRACUNIT + y0;
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destwidth = img->GetWidth() * CleanXfac * FRACUNIT;
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destheight = img->GetHeight() * CleanYfac * FRACUNIT;
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}
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else
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{
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if (intval == HUD_HorizCenter)
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x0 += Width * FRACUNIT / 2;
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else if (xright)
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x0 = Width * FRACUNIT + x0;
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if (ybot)
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y0 = Height * FRACUNIT + y0;
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}
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}
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break;
|
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case DTA_VirtualWidth:
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virtWidth = va_arg (tags, int);
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break;
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case DTA_VirtualHeight:
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virtHeight = va_arg (tags, int);
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break;
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case DTA_Alpha:
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alpha = MIN<fixed_t> (FRACUNIT, va_arg (tags, fixed_t));
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break;
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|
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case DTA_AlphaChannel:
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alphaChannel = va_arg (tags, BOOL);
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break;
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case DTA_FillColor:
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fillcolor = va_arg (tags, int);
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break;
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case DTA_Translation:
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translation = va_arg (tags, const BYTE *);
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break;
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case DTA_FlipX:
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flipX = va_arg (tags, BOOL);
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break;
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case DTA_TopOffset:
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top = va_arg (tags, int);
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break;
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case DTA_LeftOffset:
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left = va_arg (tags, int);
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break;
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case DTA_CenterOffset:
|
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if (va_arg (tags, int))
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{
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left = img->GetWidth() / 2;
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top = img->GetHeight() / 2;
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}
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break;
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case DTA_CenterBottomOffset:
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if (va_arg (tags, int))
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{
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left = img->GetWidth() / 2;
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top = img->GetHeight();
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}
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break;
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case DTA_WindowLeft:
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windowleft = va_arg (tags, int);
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break;
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case DTA_WindowRight:
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windowright = va_arg (tags, int);
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break;
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case DTA_ClipTop:
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uclip = va_arg (tags, int);
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if (uclip < 0)
|
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{
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uclip = 0;
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}
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break;
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case DTA_ClipBottom:
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dclip = va_arg (tags, int);
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if (dclip > this->GetHeight())
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{
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dclip = this->GetHeight();
|
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}
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break;
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case DTA_ClipLeft:
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lclip = va_arg (tags, int);
|
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if (lclip < 0)
|
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{
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lclip = 0;
|
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}
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break;
|
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case DTA_ClipRight:
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rclip = va_arg (tags, int);
|
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if (rclip > this->GetWidth())
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{
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rclip = this->GetWidth();
|
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}
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break;
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case DTA_ShadowAlpha:
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shadowAlpha = MIN<fixed_t> (FRACUNIT, va_arg (tags, fixed_t));
|
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break;
|
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|
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case DTA_ShadowColor:
|
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shadowColor = va_arg (tags, int);
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break;
|
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|
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case DTA_Shadow:
|
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boolval = va_arg (tags, BOOL);
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if (boolval)
|
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{
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shadowAlpha = FRACUNIT/2;
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shadowColor = 0;
|
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}
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else
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{
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shadowAlpha = 0;
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}
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break;
|
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|
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case DTA_Masked:
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boolval = va_arg (tags, BOOL);
|
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if (boolval)
|
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{
|
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spanptr = &spans;
|
||||
}
|
||||
else
|
||||
{
|
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spanptr = NULL;
|
||||
}
|
||||
break;
|
||||
|
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case DTA_KeepRatio:
|
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keepratio = va_arg (tags, BOOL);
|
||||
break;
|
||||
}
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tag = va_arg (tags, DWORD);
|
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}
|
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va_end (tags);
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|
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if (virtWidth != Width || virtHeight != Height)
|
||||
{
|
||||
int myratio = CheckRatio (Width, Height);
|
||||
if (myratio != 0 && !keepratio)
|
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{ // The target surface is not 4:3, so expand the specified
|
||||
// virtual size to avoid undesired stretching of the image.
|
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// Does not handle non-4:3 virtual sizes. I'll worry about
|
||||
// those if somebody expresses a desire to use them.
|
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x0 = Scale (Width*960, x0-virtWidth*FRACUNIT/2, virtWidth*BaseRatioSizes[myratio][0]) + Width*FRACUNIT/2;
|
||||
y0 = Scale (Height, y0, virtHeight);
|
||||
destwidth = FixedDiv (Width*960 * (destwidth>>FRACBITS), virtWidth*BaseRatioSizes[myratio][0]);
|
||||
destheight = FixedDiv (Height * (destheight>>FRACBITS), virtHeight);
|
||||
}
|
||||
else
|
||||
{
|
||||
x0 = Scale (Width, x0, virtWidth);
|
||||
y0 = Scale (Height, y0, virtHeight);
|
||||
destwidth = FixedDiv (Width * (destwidth>>FRACBITS), virtWidth);
|
||||
destheight = FixedDiv (Height * (destheight>>FRACBITS), virtHeight);
|
||||
}
|
||||
}
|
||||
|
||||
if (destwidth <= 0 || destheight <= 0)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
ERenderStyle style;
|
||||
|
||||
if (fillcolor >= 0)
|
||||
{
|
||||
if (alphaChannel)
|
||||
{
|
||||
style = STYLE_Shaded;
|
||||
}
|
||||
else if (alpha < FRACUNIT)
|
||||
{
|
||||
style = STYLE_TranslucentStencil;
|
||||
}
|
||||
else
|
||||
{
|
||||
style = STYLE_Stencil;
|
||||
}
|
||||
}
|
||||
else if (alpha < FRACUNIT)
|
||||
{
|
||||
style = STYLE_Translucent;
|
||||
}
|
||||
else
|
||||
{
|
||||
style = STYLE_Normal;
|
||||
}
|
||||
|
||||
fixedcolormap = identitymap;
|
||||
ESPSResult mode = R_SetPatchStyle (style, alpha, 0, fillcolor<<24);
|
||||
|
||||
if (style != STYLE_Shaded)
|
||||
{
|
||||
if (translation != NULL)
|
||||
{
|
||||
dc_colormap = (lighttable_t *)translation;
|
||||
}
|
||||
else
|
||||
{
|
||||
dc_colormap = identitymap;
|
||||
}
|
||||
}
|
||||
|
||||
BYTE *destorgsave = dc_destorg;
|
||||
dc_destorg = screen->GetBuffer();
|
||||
|
||||
x0 -= Scale (left, destwidth, img->GetWidth());
|
||||
y0 -= Scale (top, destheight, img->GetHeight());
|
||||
|
||||
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 = y0;
|
||||
spryscale = destheight / img->GetHeight();
|
||||
|
||||
// Fix precision errors that are noticeable at some resolutions
|
||||
if ((spryscale * img->GetHeight()) >> FRACBITS != destheight >> FRACBITS)
|
||||
spryscale++;
|
||||
|
||||
sprflipvert = false;
|
||||
dc_iscale = 0xffffffffu / (unsigned)spryscale;
|
||||
dc_texturemid = FixedMul (-y0, dc_iscale);
|
||||
fixed_t frac = 0;
|
||||
fixed_t xiscale = DivScale32 (img->GetWidth(), destwidth);
|
||||
int x2 = (x0 + destwidth) >> FRACBITS;
|
||||
|
||||
if (bottomclipper[0] != dclip)
|
||||
{
|
||||
clearbufshort (bottomclipper, screen->GetWidth(), (short)dclip);
|
||||
if (identitymap[1] != 1)
|
||||
{
|
||||
for (int i = 0; i < 256; ++i)
|
||||
{
|
||||
identitymap[i] = i;
|
||||
}
|
||||
}
|
||||
}
|
||||
if (uclip != 0)
|
||||
{
|
||||
if (topclipper[0] != uclip)
|
||||
{
|
||||
clearbufshort (topclipper, screen->GetWidth(), (short)uclip);
|
||||
}
|
||||
mceilingclip = topclipper;
|
||||
}
|
||||
else
|
||||
{
|
||||
mceilingclip = zeroarray;
|
||||
}
|
||||
mfloorclip = bottomclipper;
|
||||
|
||||
if (flipX)
|
||||
{
|
||||
frac = (img->GetWidth() << FRACBITS) - 1;
|
||||
xiscale = -xiscale;
|
||||
}
|
||||
|
||||
dc_x = x0 >> FRACBITS;
|
||||
if (windowleft > 0 || windowright < img->GetWidth())
|
||||
{
|
||||
fixed_t xscale = destwidth / img->GetWidth();
|
||||
dc_x += (windowleft * xscale) >> FRACBITS;
|
||||
frac += windowleft << FRACBITS;
|
||||
x2 -= ((img->GetWidth() - windowright) * xscale) >> FRACBITS;
|
||||
}
|
||||
if (dc_x < lclip)
|
||||
{
|
||||
frac += (lclip - dc_x) * xiscale;
|
||||
dc_x = lclip;
|
||||
}
|
||||
if (x2 > rclip)
|
||||
{
|
||||
x2 = rclip;
|
||||
}
|
||||
|
||||
if (destheight < 32*FRACUNIT)
|
||||
{
|
||||
mode = DoDraw0;
|
||||
}
|
||||
|
||||
if (mode == DoDraw0)
|
||||
{
|
||||
// One column at a time
|
||||
stop4 = dc_x;
|
||||
}
|
||||
else // DoDraw1
|
||||
{
|
||||
// Up to four columns at a time
|
||||
stop4 = x2 & ~3;
|
||||
}
|
||||
|
||||
if (dc_x < x2)
|
||||
{
|
||||
while ((dc_x < stop4) && (dc_x & 3))
|
||||
{
|
||||
pixels = img->GetColumn (frac >> FRACBITS, spanptr);
|
||||
R_DrawMaskedColumn (pixels, spans);
|
||||
dc_x++;
|
||||
frac += xiscale;
|
||||
}
|
||||
|
||||
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;
|
||||
}
|
||||
rt_draw4cols (dc_x - 4);
|
||||
}
|
||||
|
||||
while (dc_x < x2)
|
||||
{
|
||||
pixels = img->GetColumn (frac >> FRACBITS, spanptr);
|
||||
R_DrawMaskedColumn (pixels, spans);
|
||||
dc_x++;
|
||||
frac += xiscale;
|
||||
}
|
||||
}
|
||||
centeryfrac = centeryback;
|
||||
}
|
||||
R_FinishSetPatchStyle ();
|
||||
|
||||
dc_destorg = destorgsave;
|
||||
|
||||
if (ticdup != 0 && menuactive == MENU_Off)
|
||||
{
|
||||
NetUpdate ();
|
||||
}
|
||||
}
|
||||
|
||||
void DCanvas::FillBorder (FTexture *img)
|
||||
{
|
||||
int myratio = CheckRatio (Width, Height);
|
||||
if (myratio == 0)
|
||||
{ // This is a 4:3 display, so no border to show
|
||||
return;
|
||||
}
|
||||
int bordtop, bordbottom, bordleft, bordright, bord;
|
||||
if (myratio & 4)
|
||||
{ // 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, 0); // Top
|
||||
Clear (0, bordtop, bordleft, Height - bordbottom, 0); // Left
|
||||
Clear (Width - bordright, bordtop, Width, Height - bordbottom, 0); // Right
|
||||
Clear (0, Height - bordbottom, Width, Height, 0); // Bottom
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/********************************/
|
||||
/* */
|
||||
/* 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;
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue