2006-02-24 04:48:15 +00:00
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// Emacs style mode select -*- C++ -*-
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//-----------------------------------------------------------------------------
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//
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// $Id:$
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//
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// Copyright (C) 1993-1996 by id Software, Inc.
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//
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// This source is available for distribution and/or modification
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// only under the terms of the DOOM Source Code License as
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// published by id Software. All rights reserved.
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//
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// The source is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License
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// for more details.
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//
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// DESCRIPTION:
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// System specific interface stuff.
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//
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//-----------------------------------------------------------------------------
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#ifndef __R_MAIN_H__
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#define __R_MAIN_H__
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2011-07-06 15:31:05 +00:00
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#include "r_utility.h"
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2006-02-24 04:48:15 +00:00
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#include "d_player.h"
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2009-09-20 03:50:05 +00:00
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#include "v_palette.h"
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2011-07-06 07:35:36 +00:00
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#include "r_data/colormaps.h"
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2006-02-24 04:48:15 +00:00
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2011-07-06 13:00:51 +00:00
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typedef BYTE lighttable_t; // This could be wider for >8 bit display.
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2006-02-24 04:48:15 +00:00
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//
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// POV related.
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//
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extern bool bRenderingToCanvas;
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extern fixed_t viewcos;
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extern fixed_t viewsin;
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2011-01-02 18:02:27 +00:00
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extern fixed_t viewingrangerecip;
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2006-02-24 04:48:15 +00:00
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extern fixed_t FocalLengthX, FocalLengthY;
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extern float FocalLengthXfloat;
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extern fixed_t InvZtoScale;
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extern float WallTMapScale2;
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extern int viewwindowx;
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extern int viewwindowy;
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extern fixed_t centerxfrac;
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extern fixed_t centeryfrac;
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extern fixed_t yaspectmul;
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extern float iyaspectmulfloat;
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- Updated lempar.c to v1.31.
- Added .txt files to the list of types (wad, zip, and pk3) that can be
loaded without listing them after -file.
- Fonts that are created by the ACS setfont command to wrap a texture now
support animated textures.
- FON2 fonts can now use their full palette for CR_UNTRANSLATED when drawn
with the hardware 2D path instead of being restricted to the game palette.
- Fixed: Toggling vid_vsync would reset the displayed fullscreen gamma to 1
on a Radeon 9000.
- Added back the off-by-one palette handling, but in a much more limited
scope than before. The skipped entry is assumed to always be at 248, and
it is assumed that all Shader Model 1.4 cards suffer from this. That's
because all SM1.4 cards are based on variants of the ATI R200 core, and the
RV250 in a Radeon 9000 craps up like this. I see no reason to assume that
other flavors of the R200 are any different. (Interesting note: With the
Radeon 9000, D3DTADDRESS_CLAMP is an invalid address mode when using the
debug Direct3D 9 runtime, but it works perfectly fine with the retail
Direct3D 9 runtime.) (Insight: The R200 probably uses bytes for all its
math inside pixel shaders. That would explain perfectly why I can't use
constants greater than 1 with PS1.4 and why it can't do an exact mapping to
every entry in the color palette.
- Fixed: The software shaded drawer did not work for 2D, because its selected
"color"map was replaced with the identitymap before being used.
- Fixed: I cannot use Printf to output messages before the framebuffer was
completely setup, meaning that Shader Model 1.4 cards could not change
resolution.
- I have decided to let remap palettes specify variable alpha values for
their colors. D3DFB no longer forces them to 255.
- Updated re2c to version 0.12.3.
- Fixed: A_Wander used threshold as a timer, when it should have used
reactiontime.
- Fixed: A_CustomRailgun would not fire at all for actors without a target
when the aim parameter was disabled.
- Made the warp command work in multiplayer, again courtesy of Karate Chris.
- Fixed: Trying to spawn a bot while not in a game made for a crashing time.
(Patch courtesy of Karate Chris.)
- Removed some floating point math from hu_scores.cpp that somebody's GCC
gave warnings for (not mine, though).
- Fixed: The SBarInfo drawbar command crashed if the sprite image was
unavailable.
- Fixed: FString::operator=(const char *) did not release its old buffer when
being assigned to the null string.
- The scanner no longer has an upper limit on the length of strings it
accepts, though short strings will be faster than long ones.
- Moved all the text scanning functions into a class. Mainly, this means that
multiple script scanner states can be stored without being forced to do so
recursively. I think I might be taking advantage of that in the near
future. Possibly. Maybe.
- Removed some potential buffer overflows from the decal parser.
- Applied Blzut3's SBARINFO update #9:
* Fixed: When using even length values in drawnumber it would cap to a 98
value instead of a 99 as intended.
* The SBarInfo parser can now accept negatives for coordinates. This
doesn't allow much right now, but later I plan to add better fullscreen
hud support in which the negatives will be more useful. This also cleans
up the source a bit since all calls for (x, y) coordinates are with the
function getCoordinates().
- Added support for stencilling actors.
- Added support for non-black colors specified with DTA_ColorOverlay to the
software renderer.
- Fixed: The inverse, gold, red, and green fixed colormaps each allocated
space for 32 different colormaps, even though each only used the first one.
- Added two new blending flags to make reverse subtract blending more useful:
STYLEF_InvertSource and STYLEF_InvertOverlay. These invert the color that
gets blended with the background, since that seems like a good idea for
reverse subtraction. They also work with the other two blending operations.
- Added subtract and reverse subtract blending operations to the renderer.
Since the ERenderStyle enumeration was getting rather unwieldy, I converted
it into a new FRenderStyle structure that lets each parameter of the
blending equation be set separately. This simplified the set up for the
blend quite a bit, and it means a number of new combinations are available
by setting the parameters properly.
SVN r710 (trunk)
2008-01-25 23:57:44 +00:00
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extern FDynamicColormap*basecolormap; // [RH] Colormap for sector currently being drawn
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2006-02-24 04:48:15 +00:00
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extern int linecount;
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extern int loopcount;
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2006-06-18 15:49:00 +00:00
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extern bool r_dontmaplines;
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2006-02-24 04:48:15 +00:00
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//
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// Lighting.
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//
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// [RH] This has changed significantly from Doom, which used lookup
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// tables based on 1/z for walls and z for flats and only recognized
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// 16 discrete light levels. The terminology I use is borrowed from Build.
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//
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// The size of a single colormap, in bits
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#define COLORMAPSHIFT 8
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// Convert a light level into an unbounded colormap index (shade). Result is
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// fixed point. Why the +12? I wish I knew, but experimentation indicates it
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// is necessary in order to best reproduce Doom's original lighting.
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2012-01-22 00:14:02 +00:00
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#define LIGHT2SHADE(l) ((NUMCOLORMAPS*2*FRACUNIT)-(((l)+12)*(FRACUNIT*NUMCOLORMAPS/128)))
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2006-02-24 04:48:15 +00:00
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2011-06-12 03:15:15 +00:00
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// MAXLIGHTSCALE from original DOOM, divided by 2.
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#define MAXLIGHTVIS (24*FRACUNIT)
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2006-02-24 04:48:15 +00:00
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// Convert a shade and visibility to a clamped colormap index.
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// Result is not fixed point.
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2011-06-12 03:15:15 +00:00
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// Change R_CalcTiltedLighting() when this changes.
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#define GETPALOOKUP(vis,shade) (clamp<int> (((shade)-MIN(MAXLIGHTVIS,(vis)))>>FRACBITS, 0, NUMCOLORMAPS-1))
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2006-02-24 04:48:15 +00:00
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extern fixed_t GlobVis;
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void R_SetVisibility (float visibility);
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float R_GetVisibility ();
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extern fixed_t r_BaseVisibility;
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extern fixed_t r_WallVisibility;
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extern fixed_t r_FloorVisibility;
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extern float r_TiltVisibility;
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extern fixed_t r_SpriteVisibility;
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extern fixed_t r_SkyVisibility;
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2011-07-07 15:37:47 +00:00
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extern int r_actualextralight;
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2006-02-24 04:48:15 +00:00
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extern bool foggy;
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extern int fixedlightlev;
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extern lighttable_t* fixedcolormap;
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2009-09-22 04:21:27 +00:00
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extern FSpecialColormap*realfixedcolormap;
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2006-02-24 04:48:15 +00:00
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//
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// Function pointers to switch refresh/drawing functions.
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// Used to select shadow mode etc.
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//
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extern void (*colfunc) (void);
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extern void (*basecolfunc) (void);
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extern void (*fuzzcolfunc) (void);
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extern void (*transcolfunc) (void);
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// No shadow effects on floors.
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extern void (*spanfunc) (void);
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// [RH] Function pointers for the horizontal column drawers.
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extern void (*hcolfunc_pre) (void);
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extern void (*hcolfunc_post1) (int hx, int sx, int yl, int yh);
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extern void (*hcolfunc_post2) (int hx, int sx, int yl, int yh);
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2008-02-27 03:11:35 +00:00
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extern void (STACK_ARGS *hcolfunc_post4) (int sx, int yl, int yh);
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2006-02-24 04:48:15 +00:00
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void R_InitTextureMapping ();
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//
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// REFRESH - the actual rendering functions.
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//
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// Called by G_Drawer.
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2006-06-18 15:49:00 +00:00
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void R_RenderActorView (AActor *actor, bool dontmaplines = false);
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- Ported vlinetallasm4 to AMD64 assembly. Even with the increased number of
registers AMD64 provides, this routine still needs to be written as self-
modifying code for maximum performance. The additional registers do allow
for further optimization over the x86 version by allowing all four pixels
to be in flight at the same time. The end result is that AMD64 ASM is about
2.18 times faster than AMD64 C and about 1.06 times faster than x86 ASM.
(For further comparison, AMD64 C and x86 C are practically the same for
this function.) Should I port any more assembly to AMD64, mvlineasm4 is the
most likely candidate, but it's not used enough at this point to bother.
Also, this may or may not work with Linux at the moment, since it doesn't
have the eh_handler metadata. Win64 is easier, since I just need to
structure the function prologue and epilogue properly and use some
assembler directives/macros to automatically generate the metadata. And
that brings up another point: You need YASM to assemble the AMD64 code,
because NASM doesn't support the Win64 metadata directives.
- Added an SSE version of DoBlending. This is strictly C intrinsics.
VC++ still throws around unneccessary register moves. GCC seems to be
pretty close to optimal, requiring only about 2 cycles/color. They're
both faster than my hand-written MMX routine, so I don't need to feel
bad about not hand-optimizing this for x64 builds.
- Removed an extra instruction from DoBlending_MMX, transposed two
instructions, and unrolled it once, shaving off about 80 cycles from the
time required to blend 256 palette entries. Why? Because I tried writing
a C version of the routine using compiler intrinsics and was appalled by
all the extra movq's VC++ added to the code. GCC was better, but still
generated extra instructions. I only wanted a C version because I can't
use inline assembly with VC++'s x64 compiler, and x64 assembly is a bit
of a pain. (It's a pain because Linux and Windows have different calling
conventions, and you need to maintain extra metadata for functions.) So,
the assembly version stays and the C version stays out.
- Removed all the pixel doubling r_detail modes, since the one platform they
were intended to assist (486) actually sees very little benefit from them.
- Rewrote CheckMMX in C and renamed it to CheckCPU.
- Fixed: CPUID function 0x80000005 is specified to return detailed L1 cache
only for AMD processors, so we must not use it on other architectures, or
we end up overwriting the L1 cache line size with 0 or some other number
we don't actually understand.
SVN r1134 (trunk)
2008-08-09 03:13:43 +00:00
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void R_SetupBuffer ();
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2006-02-24 04:48:15 +00:00
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2006-06-18 15:49:00 +00:00
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void R_RenderViewToCanvas (AActor *actor, DCanvas *canvas, int x, int y, int width, int height, bool dontmaplines = false);
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2006-02-24 04:48:15 +00:00
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// [RH] Initialize multires stuff for renderer
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void R_MultiresInit (void);
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2006-05-25 04:32:20 +00:00
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2006-02-24 04:48:15 +00:00
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extern int stacked_extralight;
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extern float stacked_visibility;
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extern fixed_t stacked_viewx, stacked_viewy, stacked_viewz;
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extern angle_t stacked_angle;
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extern void R_CopyStackedViewParameters();
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2011-07-05 10:02:38 +00:00
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2006-02-24 04:48:15 +00:00
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#endif // __R_MAIN_H__
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