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v_video.cpp
865 lines (747 loc) · 19.8 KB
/
v_video.cpp
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/*
** Video basics and init code.
**
**---------------------------------------------------------------------------
** Copyright 1999-2016 Randy Heit
** Copyright 2005-2016 Christoph Oelckers
** 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 "i_system.h"
#include "c_cvars.h"
#include "x86.h"
#include "i_video.h"
#include "r_state.h"
#include "am_map.h"
#include "doomstat.h"
#include "c_console.h"
#include "hu_stuff.h"
#include "m_argv.h"
#include "v_video.h"
#include "v_text.h"
#include "sc_man.h"
#include "w_wad.h"
#include "c_dispatch.h"
#include "cmdlib.h"
#include "sbar.h"
#include "hardware.h"
#include "m_png.h"
#include "r_utility.h"
#include "swrenderer/r_renderer.h"
#include "menu/menu.h"
#include "vm.h"
#include "r_videoscale.h"
#include "i_time.h"
#include "version.h"
#include "g_levellocals.h"
#include "am_map.h"
#include "atterm.h"
EXTERN_CVAR(Int, menu_resolution_custom_width)
EXTERN_CVAR(Int, menu_resolution_custom_height)
CVAR(Int, win_x, -1, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
CVAR(Int, win_y, -1, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
CVAR(Int, win_w, -1, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
CVAR(Int, win_h, -1, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
CVAR(Bool, win_maximized, false, CVAR_ARCHIVE | CVAR_GLOBALCONFIG | CVAR_NOINITCALL)
CUSTOM_CVAR(Int, vid_maxfps, 200, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
{
if (vid_maxfps < TICRATE && vid_maxfps != 0)
{
vid_maxfps = TICRATE;
}
else if (vid_maxfps > 1000)
{
vid_maxfps = 1000;
}
}
CUSTOM_CVAR(Int, vid_rendermode, 4, CVAR_ARCHIVE | CVAR_GLOBALCONFIG | CVAR_NOINITCALL)
{
if (self < 0 || self > 4)
{
self = 4;
}
if (usergame)
{
// [SP] Update pitch limits to the netgame/gamesim.
players[consoleplayer].SendPitchLimits();
}
screen->SetTextureFilterMode();
// No further checks needed. All this changes now is which scene drawer the render backend calls.
}
CUSTOM_CVAR(Int, vid_enablevulkan, 0, CVAR_ARCHIVE | CVAR_GLOBALCONFIG | CVAR_NOINITCALL)
{
// [SP] This may seem pointless - but I don't want to implement live switching just
// yet - I'm pretty sure it's going to require a lot of reinits and destructions to
// do it right without memory leaks
Printf("Changing the video backend requires a restart for " GAMENAME ".\n");
}
CVAR(Int, vid_renderer, 1, 0) // for some stupid mods which threw caution out of the window...
EXTERN_CVAR(Bool, r_blendmethod)
int active_con_scale();
FRenderer *SWRenderer;
#define DBGBREAK assert(0)
class DDummyFrameBuffer : public DFrameBuffer
{
typedef DFrameBuffer Super;
public:
DDummyFrameBuffer (int width, int height)
: DFrameBuffer (0, 0)
{
SetVirtualSize(width, height);
}
// These methods should never be called.
void Update() { DBGBREAK; }
bool IsFullscreen() { DBGBREAK; return 0; }
int GetClientWidth() { DBGBREAK; return 0; }
int GetClientHeight() { DBGBREAK; return 0; }
void InitializeState() override {}
float Gamma;
};
int DisplayWidth, DisplayHeight;
FFont *SmallFont, *SmallFont2, *BigFont, *BigUpper, *ConFont, *IntermissionFont, *NewConsoleFont, *NewSmallFont, *CurrentConsoleFont, *OriginalSmallFont, *AlternativeSmallFont, *OriginalBigFont;
// [RH] The framebuffer is no longer a mere byte array.
// There's also only one, not four.
DFrameBuffer *screen;
CVAR (Int, vid_defwidth, 640, CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
CVAR (Int, vid_defheight, 480, CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
CVAR (Bool, ticker, false, 0)
CUSTOM_CVAR (Bool, vid_vsync, false, CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
{
if (screen != NULL)
{
screen->SetVSync (*self);
}
}
// [RH] Set true when vid_setmode command has been executed
bool setmodeneeded = false;
//==========================================================================
//
// DCanvas Constructor
//
//==========================================================================
DCanvas::DCanvas (int _width, int _height, bool _bgra)
{
// Init member vars
Width = _width;
Height = _height;
Bgra = _bgra;
Resize(_width, _height);
}
//==========================================================================
//
// DCanvas Destructor
//
//==========================================================================
DCanvas::~DCanvas ()
{
}
//==========================================================================
//
//
//
//==========================================================================
void DCanvas::Resize(int width, int height)
{
Width = width;
Height = height;
// Making the pitch a power of 2 is very bad for performance
// Try to maximize the number of cache lines that can be filled
// for each column drawing operation by making the pitch slightly
// longer than the width. The values used here are all based on
// empirical evidence.
if (width <= 640)
{
// For low resolutions, just keep the pitch the same as the width.
// Some speedup can be seen using the technique below, but the speedup
// is so marginal that I don't consider it worthwhile.
Pitch = width;
}
else
{
// If we couldn't figure out the CPU's L1 cache line size, assume
// it's 32 bytes wide.
if (CPU.DataL1LineSize == 0)
{
CPU.DataL1LineSize = 32;
}
// The Athlon and P3 have very different caches, apparently.
// I am going to generalize the Athlon's performance to all AMD
// processors and the P3's to all non-AMD processors. I don't know
// how smart that is, but I don't have a vast plethora of
// processors to test with.
if (CPU.bIsAMD)
{
Pitch = width + CPU.DataL1LineSize;
}
else
{
Pitch = width + MAX(0, CPU.DataL1LineSize - 8);
}
}
int bytes_per_pixel = Bgra ? 4 : 1;
Pixels.Resize(Pitch * height * bytes_per_pixel);
memset (Pixels.Data(), 0, Pixels.Size());
}
//==========================================================================
//
// V_GetColorFromString
//
// Passed a string of the form "#RGB", "#RRGGBB", "R G B", or "RR GG BB",
// returns a number representing that color. If palette is non-NULL, the
// index of the best match in the palette is returned, otherwise the
// RRGGBB value is returned directly.
//
//==========================================================================
int V_GetColorFromString (const uint32_t *palette, const char *cstr, FScriptPosition *sc)
{
int c[3], i, p;
char val[3];
val[2] = '\0';
// Check for HTML-style #RRGGBB or #RGB color string
if (cstr[0] == '#')
{
size_t len = strlen (cstr);
if (len == 7)
{
// Extract each eight-bit component into c[].
for (i = 0; i < 3; ++i)
{
val[0] = cstr[1 + i*2];
val[1] = cstr[2 + i*2];
c[i] = ParseHex (val, sc);
}
}
else if (len == 4)
{
// Extract each four-bit component into c[], expanding to eight bits.
for (i = 0; i < 3; ++i)
{
val[1] = val[0] = cstr[1 + i];
c[i] = ParseHex (val, sc);
}
}
else
{
// Bad HTML-style; pretend it's black.
c[2] = c[1] = c[0] = 0;
}
}
else
{
if (strlen(cstr) == 6)
{
char *p;
int color = strtol(cstr, &p, 16);
if (*p == 0)
{
// RRGGBB string
c[0] = (color & 0xff0000) >> 16;
c[1] = (color & 0xff00) >> 8;
c[2] = (color & 0xff);
}
else goto normal;
}
else
{
normal:
// Treat it as a space-delimited hexadecimal string
for (i = 0; i < 3; ++i)
{
// Skip leading whitespace
while (*cstr <= ' ' && *cstr != '\0')
{
cstr++;
}
// Extract a component and convert it to eight-bit
for (p = 0; *cstr > ' '; ++p, ++cstr)
{
if (p < 2)
{
val[p] = *cstr;
}
}
if (p == 0)
{
c[i] = 0;
}
else
{
if (p == 1)
{
val[1] = val[0];
}
c[i] = ParseHex (val, sc);
}
}
}
}
if (palette)
return ColorMatcher.Pick (c[0], c[1], c[2]);
else
return MAKERGB(c[0], c[1], c[2]);
}
//==========================================================================
//
// V_GetColorStringByName
//
// Searches for the given color name in x11r6rgb.txt and returns an
// HTML-ish "#RRGGBB" string for it if found or the empty string if not.
//
//==========================================================================
FString V_GetColorStringByName (const char *name, FScriptPosition *sc)
{
FMemLump rgbNames;
char *rgbEnd;
char *rgb, *endp;
int rgblump;
int c[3], step;
size_t namelen;
if (Wads.GetNumLumps()==0) return FString();
rgblump = Wads.CheckNumForName ("X11R6RGB");
if (rgblump == -1)
{
if (!sc) Printf ("X11R6RGB lump not found\n");
else sc->Message(MSG_WARNING, "X11R6RGB lump not found");
return FString();
}
rgbNames = Wads.ReadLump (rgblump);
rgb = (char *)rgbNames.GetMem();
rgbEnd = rgb + Wads.LumpLength (rgblump);
step = 0;
namelen = strlen (name);
while (rgb < rgbEnd)
{
// Skip white space
if (*rgb <= ' ')
{
do
{
rgb++;
} while (rgb < rgbEnd && *rgb <= ' ');
}
else if (step == 0 && *rgb == '!')
{ // skip comment lines
do
{
rgb++;
} while (rgb < rgbEnd && *rgb != '\n');
}
else if (step < 3)
{ // collect RGB values
c[step++] = strtoul (rgb, &endp, 10);
if (endp == rgb)
{
break;
}
rgb = endp;
}
else
{ // Check color name
endp = rgb;
// Find the end of the line
while (endp < rgbEnd && *endp != '\n')
endp++;
// Back up over any whitespace
while (endp > rgb && *endp <= ' ')
endp--;
if (endp == rgb)
{
break;
}
size_t checklen = ++endp - rgb;
if (checklen == namelen && strnicmp (rgb, name, checklen) == 0)
{
FString descr;
descr.Format ("#%02x%02x%02x", c[0], c[1], c[2]);
return descr;
}
rgb = endp;
step = 0;
}
}
if (rgb < rgbEnd)
{
if (!sc) Printf ("X11R6RGB lump is corrupt\n");
else sc->Message(MSG_WARNING, "X11R6RGB lump is corrupt");
}
return FString();
}
//==========================================================================
//
// V_GetColor
//
// Works like V_GetColorFromString(), but also understands X11 color names.
//
//==========================================================================
int V_GetColor (const uint32_t *palette, const char *str, FScriptPosition *sc)
{
FString string = V_GetColorStringByName (str, sc);
int res;
if (!string.IsEmpty())
{
res = V_GetColorFromString (palette, string, sc);
}
else
{
res = V_GetColorFromString (palette, str, sc);
}
return res;
}
int V_GetColor(const uint32_t *palette, FScanner &sc)
{
FScriptPosition scc = sc;
return V_GetColor(palette, sc.String, &scc);
}
CCMD(clean)
{
Printf ("CleanXfac: %d\nCleanYfac: %d\n", CleanXfac, CleanYfac);
}
void V_UpdateModeSize (int width, int height)
{
// This calculates the menu scale.
// The optimal scale will always be to fit a virtual 640 pixel wide display onto the screen.
// Exceptions are made for a few ranges where the available virtual width is > 480.
// This reference size is being used so that on 800x450 (small 16:9) a scale of 2 gets used.
CleanXfac = std::max(std::min(screen->GetWidth() / 400, screen->GetHeight() / 240), 1);
if (CleanXfac >= 4) CleanXfac--; // Otherwise we do not have enough space for the episode/skill menus in some languages.
CleanYfac = CleanXfac;
CleanWidth = screen->GetWidth() / CleanXfac;
CleanHeight = screen->GetHeight() / CleanYfac;
int w = screen->GetWidth();
int factor;
if (w < 640) factor = 1;
else if (w >= 1024 && w < 1280) factor = 2;
else if (w >= 1600 && w < 1920) factor = 3;
else factor = w / 640;
if (w < 1360) factor = 1;
else if (w < 1920) factor = 2;
else factor = int(factor * 0.7);
CleanYfac_1 = CleanXfac_1 = factor;// MAX(1, int(factor * 0.7));
CleanWidth_1 = width / CleanXfac_1;
CleanHeight_1 = height / CleanYfac_1;
DisplayWidth = width;
DisplayHeight = height;
R_OldBlend = ~0;
}
void V_OutputResized (int width, int height)
{
V_UpdateModeSize(width, height);
setsizeneeded = true;
if (StatusBar != NULL)
{
StatusBar->CallScreenSizeChanged();
}
C_NewModeAdjust();
// Reload crosshair if transitioned to a different size
ST_LoadCrosshair(true);
if (primaryLevel && primaryLevel->automap)
primaryLevel->automap->NewResolution();
}
void V_CalcCleanFacs (int designwidth, int designheight, int realwidth, int realheight, int *cleanx, int *cleany, int *_cx1, int *_cx2)
{
if (designheight < 240 && realheight >= 480) designheight = 240;
*cleanx = *cleany = std::min(realwidth / designwidth, realheight / designheight);
}
bool IVideo::SetResolution ()
{
DFrameBuffer *buff = CreateFrameBuffer();
if (buff == NULL) // this cannot really happen
{
return false;
}
screen = buff;
screen->InitializeState();
screen->SetGamma();
V_UpdateModeSize(screen->GetWidth(), screen->GetHeight());
return true;
}
//
// V_Init
//
void V_InitScreenSize ()
{
const char *i;
int width, height, bits;
atterm(V_Shutdown);
width = height = bits = 0;
if ( (i = Args->CheckValue ("-width")) )
width = atoi (i);
if ( (i = Args->CheckValue ("-height")) )
height = atoi (i);
if (width == 0)
{
if (height == 0)
{
width = vid_defwidth;
height = vid_defheight;
}
else
{
width = (height * 8) / 6;
}
}
else if (height == 0)
{
height = (width * 6) / 8;
}
// Remember the passed arguments for the next time the game starts up windowed.
vid_defwidth = width;
vid_defheight = height;
}
void V_InitScreen()
{
screen = new DDummyFrameBuffer (vid_defwidth, vid_defheight);
}
void V_Init2()
{
float gamma = static_cast<DDummyFrameBuffer *>(screen)->Gamma;
{
DFrameBuffer *s = screen;
screen = NULL;
delete s;
}
UCVarValue val;
val.Bool = !!Args->CheckParm("-devparm");
ticker.SetGenericRepDefault(val, CVAR_Bool);
I_InitGraphics();
Video->SetResolution(); // this only fails via exceptions.
Printf ("Resolution: %d x %d\n", SCREENWIDTH, SCREENHEIGHT);
// init these for the scaling menu
menu_resolution_custom_width = SCREENWIDTH;
menu_resolution_custom_height = SCREENHEIGHT;
screen->SetGamma ();
FBaseCVar::ResetColors ();
C_NewModeAdjust();
setsizeneeded = true;
}
void V_Shutdown()
{
if (screen)
{
DFrameBuffer *s = screen;
screen = NULL;
delete s;
}
V_ClearFonts();
}
CUSTOM_CVAR (Int, vid_aspect, 0, CVAR_GLOBALCONFIG|CVAR_ARCHIVE)
{
setsizeneeded = true;
if (StatusBar != NULL)
{
StatusBar->CallScreenSizeChanged();
}
}
// Helper for ActiveRatio and CheckRatio. Returns the forced ratio type, or -1 if none.
int ActiveFakeRatio(int width, int height)
{
int fakeratio = -1;
if ((vid_aspect >= 1) && (vid_aspect <= 6))
{
// [SP] User wants to force aspect ratio; let them.
fakeratio = int(vid_aspect);
if (fakeratio == 3)
{
fakeratio = 0;
}
else if (fakeratio == 5)
{
fakeratio = 3;
}
}
else if (vid_aspect == 0 && ViewportIsScaled43())
{
fakeratio = 0;
}
return fakeratio;
}
// Active screen ratio based on cvars and size
float ActiveRatio(int width, int height, float *trueratio)
{
static float forcedRatioTypes[] =
{
4 / 3.0f,
16 / 9.0f,
16 / 10.0f,
17 / 10.0f,
5 / 4.0f,
17 / 10.0f,
21 / 9.0f
};
float ratio = width / (float)height;
int fakeratio = ActiveFakeRatio(width, height);
if (trueratio)
*trueratio = ratio;
return (fakeratio != -1) ? forcedRatioTypes[fakeratio] : ratio;
}
DEFINE_ACTION_FUNCTION(_Screen, GetAspectRatio)
{
ACTION_RETURN_FLOAT(ActiveRatio(screen->GetWidth(), screen->GetHeight(), nullptr));
}
// Tries to guess the physical dimensions of the screen based on the
// screen's pixel dimensions. Can return:
// 0: 4:3
// 1: 16:9
// 2: 16:10
// 3: 17:10
// 4: 5:4
// 5: 17:10 (redundant, never returned)
// 6: 21:9
int CheckRatio (int width, int height, int *trueratio)
{
float aspect = width / (float)height;
static std::pair<float, int> ratioTypes[] =
{
{ 21 / 9.0f , 6 },
{ 16 / 9.0f , 1 },
{ 17 / 10.0f , 3 },
{ 16 / 10.0f , 2 },
{ 4 / 3.0f , 0 },
{ 5 / 4.0f , 4 },
{ 0.0f, 0 }
};
int ratio = ratioTypes[0].second;
float distance = fabs(ratioTypes[0].first - aspect);
for (int i = 1; ratioTypes[i].first != 0.0f; i++)
{
float d = fabs(ratioTypes[i].first - aspect);
if (d < distance)
{
ratio = ratioTypes[i].second;
distance = d;
}
}
int fakeratio = ActiveFakeRatio(width, height);
if (fakeratio == -1)
fakeratio = ratio;
if (trueratio)
*trueratio = ratio;
return fakeratio;
}
int AspectBaseWidth(float aspect)
{
return (int)round(240.0f * aspect * 3.0f);
}
int AspectBaseHeight(float aspect)
{
if (!AspectTallerThanWide(aspect))
return (int)round(200.0f * (320.0f / (AspectBaseWidth(aspect) / 3.0f)) * 3.0f);
else
return (int)round((200.0f * (4.0f / 3.0f)) / aspect * 3.0f);
}
double AspectPspriteOffset(float aspect)
{
if (!AspectTallerThanWide(aspect))
return 0.0;
else
return ((4.0 / 3.0) / aspect - 1.0) * 97.5;
}
int AspectMultiplier(float aspect)
{
if (!AspectTallerThanWide(aspect))
return (int)round(320.0f / (AspectBaseWidth(aspect) / 3.0f) * 48.0f);
else
return (int)round(200.0f / (AspectBaseHeight(aspect) / 3.0f) * 48.0f);
}
bool AspectTallerThanWide(float aspect)
{
return aspect < 1.333f;
}
void ScaleWithAspect (int &w, int &h, int Width, int Height)
{
int resRatio = CheckRatio (Width, Height);
int screenRatio;
CheckRatio (w, h, &screenRatio);
if (resRatio == screenRatio)
return;
double yratio;
switch(resRatio)
{
case 0: yratio = 4./3.; break;
case 1: yratio = 16./9.; break;
case 2: yratio = 16./10.; break;
case 3: yratio = 17./10.; break;
case 4: yratio = 5./4.; break;
case 6: yratio = 21./9.; break;
default: return;
}
double y = w/yratio;
if (y > h)
w = static_cast<int>(h * yratio);
else
h = static_cast<int>(y);
}
CCMD(vid_setsize)
{
if (argv.argc() < 3)
{
Printf("Usage: vid_setsize width height\n");
}
else
{
screen->SetWindowSize((int)strtol(argv[1], nullptr, 0), (int)strtol(argv[2], nullptr, 0));
V_OutputResized(screen->GetClientWidth(), screen->GetClientHeight());
}
}
void IVideo::DumpAdapters ()
{
Printf("Multi-monitor support unavailable.\n");
}
CUSTOM_CVAR(Bool, fullscreen, true, CVAR_ARCHIVE | CVAR_GLOBALCONFIG | CVAR_NOINITCALL)
{
setmodeneeded = true;
}
CUSTOM_CVAR(Bool, vid_hdr, false, CVAR_ARCHIVE | CVAR_GLOBALCONFIG | CVAR_NOINITCALL)
{
Printf("This won't take effect until " GAMENAME " is restarted.\n");
}
CCMD(vid_listadapters)
{
if (Video != NULL)
Video->DumpAdapters();
}
bool vid_hdr_active = false;
DEFINE_GLOBAL(SmallFont)
DEFINE_GLOBAL(SmallFont2)
DEFINE_GLOBAL(BigFont)
DEFINE_GLOBAL(ConFont)
DEFINE_GLOBAL(NewConsoleFont)
DEFINE_GLOBAL(NewSmallFont)
DEFINE_GLOBAL(AlternativeSmallFont)
DEFINE_GLOBAL(OriginalSmallFont)
DEFINE_GLOBAL(OriginalBigFont)
DEFINE_GLOBAL(IntermissionFont)
DEFINE_GLOBAL(CleanXfac)
DEFINE_GLOBAL(CleanYfac)
DEFINE_GLOBAL(CleanWidth)
DEFINE_GLOBAL(CleanHeight)
DEFINE_GLOBAL(CleanXfac_1)
DEFINE_GLOBAL(CleanYfac_1)
DEFINE_GLOBAL(CleanWidth_1)
DEFINE_GLOBAL(CleanHeight_1)
DEFINE_GLOBAL(generic_ui)