mirror of
https://github.com/ZDoom/qzdoom.git
synced 2024-11-25 05:21:02 +00:00
101 lines
3.5 KiB
C++
101 lines
3.5 KiB
C++
//
|
|
//---------------------------------------------------------------------------
|
|
//
|
|
// Copyright(C) 2017 Magnus Norddahl
|
|
// Copyright(C) 2017 Rachael Alexanderson
|
|
// All rights reserved.
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Lesser General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public License
|
|
// along with this program. If not, see http://www.gnu.org/licenses/
|
|
//
|
|
//--------------------------------------------------------------------------
|
|
//
|
|
|
|
#include <math.h>
|
|
#include "c_dispatch.h"
|
|
#include "c_cvars.h"
|
|
#include "v_video.h"
|
|
|
|
#define NUMSCALEMODES 5
|
|
|
|
namespace
|
|
{
|
|
struct v_ScaleTable
|
|
{
|
|
bool isValid;
|
|
bool isLinear;
|
|
uint32_t(*GetScaledWidth)(uint32_t Width);
|
|
uint32_t(*GetScaledHeight)(uint32_t Height);
|
|
bool isScaled43;
|
|
};
|
|
v_ScaleTable vScaleTable[NUMSCALEMODES] =
|
|
{
|
|
// isValid, isLinear, GetScaledWidth(), GetScaledHeight(), isScaled43
|
|
{ true, false, [](uint32_t Width)->uint32_t { return Width; }, [](uint32_t Height)->uint32_t { return Height; }, false }, // 0 - Native
|
|
{ true, true, [](uint32_t Width)->uint32_t { return Width; }, [](uint32_t Height)->uint32_t { return Height; }, false }, // 1 - Native (Linear)
|
|
{ true, false, [](uint32_t Width)->uint32_t { return 320; }, [](uint32_t Height)->uint32_t { return 200; }, true }, // 2 - 320x200
|
|
{ true, false, [](uint32_t Width)->uint32_t { return 640; }, [](uint32_t Height)->uint32_t { return 400; }, true }, // 3 - 640x400
|
|
{ true, true, [](uint32_t Width)->uint32_t { return 1280; }, [](uint32_t Height)->uint32_t { return 800; }, true }, // 4 - 1280x800
|
|
};
|
|
bool isOutOfBounds(int x)
|
|
{
|
|
return (x < 0 || x >= NUMSCALEMODES || vScaleTable[x].isValid == false);
|
|
}
|
|
}
|
|
|
|
CUSTOM_CVAR(Float, vid_scalefactor, 1.0, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
|
|
{
|
|
if (self <= 0.0 || self > 2.0)
|
|
self = 1.0;
|
|
}
|
|
|
|
CUSTOM_CVAR(Int, vid_scalemode, 0, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
|
|
{
|
|
if (isOutOfBounds(self))
|
|
self = 0;
|
|
}
|
|
|
|
CVAR(Bool, vid_cropaspect, false, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
|
|
|
|
bool ViewportLinearScale()
|
|
{
|
|
if (isOutOfBounds(vid_scalemode))
|
|
vid_scalemode = 0;
|
|
// vid_scalefactor > 1 == forced linear scale
|
|
return (vid_scalefactor > 1.0) ? true : vScaleTable[vid_scalemode].isLinear;
|
|
}
|
|
|
|
int ViewportScaledWidth(int width, int height)
|
|
{
|
|
if (isOutOfBounds(vid_scalemode))
|
|
vid_scalemode = 0;
|
|
if (vid_cropaspect && height > 0)
|
|
width = ((float)width/height > ActiveRatio(width, height)) ? (int)(height * ActiveRatio(width, height)) : width;
|
|
return vScaleTable[vid_scalemode].GetScaledWidth((int)((float)width * vid_scalefactor));
|
|
}
|
|
|
|
int ViewportScaledHeight(int width, int height)
|
|
{
|
|
if (isOutOfBounds(vid_scalemode))
|
|
vid_scalemode = 0;
|
|
if (vid_cropaspect && height > 0)
|
|
height = ((float)width/height < ActiveRatio(width, height)) ? (int)(width / ActiveRatio(width, height)) : height;
|
|
return vScaleTable[vid_scalemode].GetScaledHeight((int)((float)height * vid_scalefactor));
|
|
}
|
|
|
|
bool ViewportIsScaled43()
|
|
{
|
|
if (isOutOfBounds(vid_scalemode))
|
|
vid_scalemode = 0;
|
|
return vScaleTable[vid_scalemode].isScaled43;
|
|
}
|