mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-22 20:41:20 +00:00
12c84046f3
This is an extremely extensive patch as it hits every cvar, and every usage of the cvars. Cvars no longer store the value they control, instead, they use a cexpr value object to reference the value and specify the value's type (currently, a null type is used for strings). Non-string cvars are passed through cexpr, allowing expressions in the cvars' settings. Also, cvars have returned to an enhanced version of the original (id quake) registration scheme. As a minor benefit, relevant code having direct access to the cvar-controlled variables is probably a slight optimization as it removed a pointer dereference, and the variables can be located for data locality. The static cvar descriptors are made private as an additional safety layer, though there's nothing stopping external modification via Cvar_FindVar (which is needed for adding listeners). While not used yet (partly due to working out the design), cvars can have a validation function. Registering a cvar allows a primary listener (and its data) to be specified: it will always be called first when the cvar is modified. The combination of proper listeners and direct access to the controlled variable greatly simplifies the more complex cvar interactions as much less null checking is required, and there's no need for one cvar's callback to call another's. nq-x11 is known to work at least well enough for the demos. More testing will come.
158 lines
3.5 KiB
C
158 lines
3.5 KiB
C
/*
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vid_sdl.c
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Video driver for Sam Lantinga's Simple DirectMedia Layer
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Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program 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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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#ifdef HAVE_STRING_H
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# include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
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#endif
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#include <stdlib.h>
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#include <SDL.h>
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#include "QF/console.h"
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#include "QF/cvar.h"
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#include "QF/qendian.h"
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#include "QF/sys.h"
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#include "QF/vid.h"
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#include "context_sdl.h"
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#include "d_iface.h"
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#include "vid_internal.h"
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#ifdef _WIN32 // FIXME: evil hack to get full DirectSound support with SDL
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#include <windows.h>
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#include <SDL_syswm.h>
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HWND win_mainwindow;
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#endif
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SDL_Surface *sdl_screen = NULL;
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static vid_internal_t vid_internal;
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uint32_t sdl_flags;
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static void
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VID_shutdown (void *data)
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{
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SDL_Quit ();
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}
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void
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VID_Init (byte *palette, byte *colormap)
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{
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Sys_RegisterShutdown (VID_shutdown, 0);
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vid_internal.gl_context = SDL_GL_Context;
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vid_internal.sw_context = SDL_SW_Context;
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// Load the SDL library
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if (SDL_Init (SDL_INIT_VIDEO) < 0)
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Sys_Error ("VID: Couldn't load SDL: %s", SDL_GetError ());
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R_LoadModule (&vid_internal);
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viddef.numpages = 1;
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viddef.colormap8 = colormap;
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viddef.fullbright = 256 - viddef.colormap8[256 * VID_GRADES];
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// Set up display mode (width and height)
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VID_GetWindowSize (640, 480);
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// Set video width, height and flags
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sdl_flags = (SDL_SWSURFACE | SDL_HWPALETTE);
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if (vid_fullscreen) {
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sdl_flags |= SDL_FULLSCREEN;
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#ifndef _WIN32 // Don't annoy Mesa/3dfx folks
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// doesn't hurt if not using a gl renderer
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// FIXME: Maybe this could be put in a different spot, but I don't
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// know where. Anyway, it's to work around a 3Dfx Glide bug.
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// Cvar_SetValue (in_grab, 1); // Needs #include "QF/input.h"
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putenv ((char *)"MESA_GLX_FX=fullscreen");
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} else {
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putenv ((char *)"MESA_GLX_FX=window");
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#endif
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}
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vid_internal.create_context ();
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VID_SDL_GammaCheck ();
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VID_InitGamma (palette);
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viddef.initialized = true;
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SDL_ShowCursor (0); // hide the mouse pointer
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#ifdef _WIN32
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// FIXME: EVIL thing - but needed for win32 until
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// SDL_sound works better - without this DirectSound fails.
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// SDL_GetWMInfo(&info);
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// mainwindow=info.window;
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win_mainwindow=GetActiveWindow();
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#endif
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viddef.recalc_refdef = 1; // force a surface cache flush
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}
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void
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VID_Init_Cvars ()
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{
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SDL_Init_Cvars ();
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SDL_GL_Init_Cvars ();
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SDL_SW_Init_Cvars ();
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}
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void
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D_BeginDirectRect (int x, int y, byte *pbitmap, int width, int height)
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{
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Uint8 *offset;
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if (!sdl_screen)
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return;
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if (x < 0)
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x = sdl_screen->w + x - 1;
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offset = (Uint8 *) sdl_screen->pixels + y * sdl_screen->pitch + x;
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while (height--) {
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memcpy (offset, pbitmap, width);
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offset += sdl_screen->pitch;
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pbitmap += width;
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}
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}
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void
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D_EndDirectRect (int x, int y, int width, int height)
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{
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if (!sdl_screen)
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return;
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if (x < 0)
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x = sdl_screen->w + x - 1;
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SDL_UpdateRect (sdl_screen, x, y, width, height);
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}
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