mirror of
https://github.com/ZDoom/gzdoom-gles.git
synced 2024-12-21 01:41:01 +00:00
368 lines
9.4 KiB
C++
368 lines
9.4 KiB
C++
/*
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** hardware.cpp
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** Somewhat OS-independant interface to the screen, mouse, keyboard, and stick
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**
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**---------------------------------------------------------------------------
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** Copyright 1998-2006 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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**
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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.
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** 2. Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** 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
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** 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
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** 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 <SDL.h>
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#include <signal.h>
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#include <time.h>
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#include "version.h"
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#include "hardware.h"
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#include "i_video.h"
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#include "i_system.h"
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#include "c_console.h"
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#include "c_cvars.h"
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#include "c_dispatch.h"
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#include "sdlvideo.h"
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#include "v_text.h"
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#include "doomstat.h"
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#include "m_argv.h"
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#include "sdlglvideo.h"
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#include "r_renderer.h"
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#include "r_swrenderer.h"
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EXTERN_CVAR (Bool, ticker)
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EXTERN_CVAR (Bool, fullscreen)
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EXTERN_CVAR (Float, vid_winscale)
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IVideo *Video;
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extern int NewWidth, NewHeight, NewBits, DisplayBits;
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bool V_DoModeSetup (int width, int height, int bits);
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void I_RestartRenderer();
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int currentrenderer;
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// [ZDoomGL]
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CUSTOM_CVAR (Int, vid_renderer, 1, CVAR_ARCHIVE | CVAR_GLOBALCONFIG | CVAR_NOINITCALL)
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{
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// 0: Software renderer
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// 1: OpenGL renderer
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if (self != currentrenderer)
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{
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switch (self)
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{
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case 0:
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Printf("Switching to software renderer...\n");
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break;
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case 1:
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Printf("Switching to OpenGL renderer...\n");
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break;
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default:
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Printf("Unknown renderer (%d). Falling back to software renderer...\n", (int) vid_renderer);
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self = 0; // make sure to actually switch to the software renderer
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break;
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}
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Printf("You must restart " GAMENAME " to switch the renderer\n");
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}
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}
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void I_ShutdownGraphics ()
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{
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if (screen)
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{
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DFrameBuffer *s = screen;
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screen = NULL;
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s->ObjectFlags |= OF_YesReallyDelete;
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delete s;
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}
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if (Video)
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delete Video, Video = NULL;
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}
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void I_InitGraphics ()
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{
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UCVarValue val;
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val.Bool = !!Args->CheckParm ("-devparm");
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ticker.SetGenericRepDefault (val, CVAR_Bool);
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//currentrenderer = vid_renderer;
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if (currentrenderer==1) Video = new SDLGLVideo(0);
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else Video = new SDLVideo (0);
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if (Video == NULL)
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I_FatalError ("Failed to initialize display");
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atterm (I_ShutdownGraphics);
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Video->SetWindowedScale (vid_winscale);
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}
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static void I_DeleteRenderer()
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{
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if (Renderer != NULL) delete Renderer;
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}
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void I_CreateRenderer()
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{
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currentrenderer = vid_renderer;
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if (Renderer == NULL)
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{
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if (currentrenderer==1) Renderer = gl_CreateInterface();
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else Renderer = new FSoftwareRenderer;
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atterm(I_DeleteRenderer);
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}
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}
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/** Remaining code is common to Win32 and Linux **/
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// VIDEO WRAPPERS ---------------------------------------------------------
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DFrameBuffer *I_SetMode (int &width, int &height, DFrameBuffer *old)
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{
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bool fs = false;
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switch (Video->GetDisplayType ())
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{
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case DISPLAY_WindowOnly:
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fs = false;
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break;
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case DISPLAY_FullscreenOnly:
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fs = true;
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break;
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case DISPLAY_Both:
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fs = fullscreen;
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break;
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}
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DFrameBuffer *res = Video->CreateFrameBuffer (width, height, fs, old);
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/* Right now, CreateFrameBuffer cannot return NULL
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if (res == NULL)
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{
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I_FatalError ("Mode %dx%d is unavailable\n", width, height);
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}
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*/
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return res;
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}
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bool I_CheckResolution (int width, int height, int bits)
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{
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int twidth, theight;
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Video->StartModeIterator (bits, screen ? screen->IsFullscreen() : fullscreen);
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while (Video->NextMode (&twidth, &theight, NULL))
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{
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if (width == twidth && height == theight)
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return true;
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}
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return false;
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}
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void I_ClosestResolution (int *width, int *height, int bits)
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{
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int twidth, theight;
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int cwidth = 0, cheight = 0;
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int iteration;
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DWORD closest = 4294967295u;
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for (iteration = 0; iteration < 2; iteration++)
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{
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Video->StartModeIterator (bits, screen ? screen->IsFullscreen() : fullscreen);
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while (Video->NextMode (&twidth, &theight, NULL))
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{
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if (twidth == *width && theight == *height)
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return;
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if (iteration == 0 && (twidth < *width || theight < *height))
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continue;
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DWORD dist = (twidth - *width) * (twidth - *width)
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+ (theight - *height) * (theight - *height);
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if (dist < closest)
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{
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closest = dist;
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cwidth = twidth;
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cheight = theight;
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}
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}
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if (closest != 4294967295u)
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{
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*width = cwidth;
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*height = cheight;
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return;
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}
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}
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}
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//==========================================================================
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//
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// SetFPSLimit
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//
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// Initializes an event timer to fire at a rate of <limit>/sec. The video
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// update will wait for this timer to trigger before updating.
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//
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// Pass 0 as the limit for unlimited.
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// Pass a negative value for the limit to use the value of vid_maxfps.
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//
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//==========================================================================
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EXTERN_CVAR(Int, vid_maxfps);
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EXTERN_CVAR(Bool, cl_capfps);
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#ifndef __APPLE__
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Semaphore FPSLimitSemaphore;
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static void FPSLimitNotify(sigval val)
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{
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SEMAPHORE_SIGNAL(FPSLimitSemaphore)
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}
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void I_SetFPSLimit(int limit)
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{
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static sigevent FPSLimitEvent;
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static timer_t FPSLimitTimer;
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static bool FPSLimitTimerEnabled = false;
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static bool EventSetup = false;
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if(!EventSetup)
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{
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EventSetup = true;
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FPSLimitEvent.sigev_notify = SIGEV_THREAD;
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FPSLimitEvent.sigev_signo = 0;
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FPSLimitEvent.sigev_value.sival_int = 0;
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FPSLimitEvent.sigev_notify_function = FPSLimitNotify;
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FPSLimitEvent.sigev_notify_attributes = NULL;
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SEMAPHORE_INIT(FPSLimitSemaphore, 0, 0)
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}
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if (limit < 0)
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{
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limit = vid_maxfps;
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}
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// Kill any leftover timer.
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if (FPSLimitTimerEnabled)
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{
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timer_delete(FPSLimitTimer);
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FPSLimitTimerEnabled = false;
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}
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if (limit == 0)
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{ // no limit
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DPrintf("FPS timer disabled\n");
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}
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else
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{
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FPSLimitTimerEnabled = true;
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if(timer_create(CLOCK_REALTIME, &FPSLimitEvent, &FPSLimitTimer) == -1)
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Printf("Failed to create FPS limitter event\n");
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itimerspec period = { {0, 0}, {0, 0} };
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period.it_value.tv_nsec = period.it_interval.tv_nsec = 1000000000 / limit;
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if(timer_settime(FPSLimitTimer, 0, &period, NULL) == -1)
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Printf("Failed to set FPS limitter timer\n");
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DPrintf("FPS timer set to %u ms\n", (unsigned int) period.it_interval.tv_nsec / 1000000);
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}
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}
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#else
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// So Apple doesn't support POSIX timers and I can't find a good substitute short of
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// having Objective-C Cocoa events or something like that.
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void I_SetFPSLimit(int limit)
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{
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}
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#endif
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CUSTOM_CVAR (Int, vid_maxfps, 200, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
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{
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if (vid_maxfps < TICRATE && vid_maxfps != 0)
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{
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vid_maxfps = TICRATE;
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}
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else if (vid_maxfps > 1000)
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{
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vid_maxfps = 1000;
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}
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else if (cl_capfps == 0)
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{
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I_SetFPSLimit(vid_maxfps);
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}
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}
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extern int NewWidth, NewHeight, NewBits, DisplayBits;
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CUSTOM_CVAR (Bool, fullscreen, false, CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
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{
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NewWidth = screen->GetWidth();
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NewHeight = screen->GetHeight();
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NewBits = DisplayBits;
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setmodeneeded = true;
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}
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CUSTOM_CVAR (Float, vid_winscale, 1.f, CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
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{
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if (self < 1.f)
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{
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self = 1.f;
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}
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else if (Video)
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{
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Video->SetWindowedScale (self);
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NewWidth = screen->GetWidth();
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NewHeight = screen->GetHeight();
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NewBits = DisplayBits;
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setmodeneeded = true;
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}
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}
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CCMD (vid_listmodes)
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{
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static const char *ratios[5] = { "", " - 16:9", " - 16:10", "", " - 5:4" };
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int width, height, bits;
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bool letterbox;
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if (Video == NULL)
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{
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return;
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}
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for (bits = 1; bits <= 32; bits++)
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{
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Video->StartModeIterator (bits, screen->IsFullscreen());
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while (Video->NextMode (&width, &height, &letterbox))
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{
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bool thisMode = (width == DisplayWidth && height == DisplayHeight && bits == DisplayBits);
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int ratio = CheckRatio (width, height);
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Printf (thisMode ? PRINT_BOLD : PRINT_HIGH,
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"%s%4d x%5d x%3d%s%s\n",
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thisMode || !(ratio & 3) ? "" : TEXTCOLOR_GOLD,
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width, height, bits,
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ratios[ratio],
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thisMode || !letterbox ? "" : TEXTCOLOR_BROWN " LB"
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);
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}
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}
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}
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CCMD (vid_currentmode)
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{
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Printf ("%dx%dx%d\n", DisplayWidth, DisplayHeight, DisplayBits);
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}
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