mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-27 06:34:11 +00:00
ec0c6ad906
It's currently very simplistic (visible, not visible), but it gets things started for making QF more usable in a windowed environment (not having a visible cursor was fine in DOS, or when full screen, but not when windowed (and not actively playing).
378 lines
8.6 KiB
C
378 lines
8.6 KiB
C
/*
|
|
vid.c
|
|
|
|
general video driver functions
|
|
|
|
Copyright (C) 1996-1997 Id Software, Inc.
|
|
|
|
This program is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU General Public License
|
|
as published by the Free Software Foundation; either version 2
|
|
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 General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to:
|
|
|
|
Free Software Foundation, Inc.
|
|
59 Temple Place - Suite 330
|
|
Boston, MA 02111-1307, USA
|
|
|
|
*/
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
#endif
|
|
|
|
#ifdef HAVE_STRING_H
|
|
# include <string.h>
|
|
#endif
|
|
#ifdef HAVE_STRINGS_H
|
|
# include <strings.h>
|
|
#endif
|
|
#include <math.h>
|
|
|
|
#include "QF/cvar.h"
|
|
#include "QF/mathlib.h"
|
|
#include "QF/qargs.h"
|
|
#include "QF/sys.h"
|
|
#include "QF/va.h"
|
|
#include "QF/ui/view.h"
|
|
|
|
#include "compat.h"
|
|
#include "d_iface.h"
|
|
#include "vid_internal.h"
|
|
|
|
/* Software and hardware gamma support */
|
|
#define viddef (*r_data->vid)
|
|
#define vi (viddef.vid_internal)
|
|
float vid_gamma;
|
|
static cvar_t vid_gamma_cvar = {
|
|
.name = "vid_gamma",
|
|
.description =
|
|
"Gamma correction",
|
|
.default_value = "1",
|
|
.flags = CVAR_ARCHIVE,
|
|
.value = { .type = &cexpr_float, .value = &vid_gamma },
|
|
};
|
|
int vid_system_gamma;
|
|
static cvar_t vid_system_gamma_cvar = {
|
|
.name = "vid_system_gamma",
|
|
.description =
|
|
"Use system gamma control if available",
|
|
.default_value = "1",
|
|
.flags = CVAR_ARCHIVE,
|
|
.value = { .type = &cexpr_int, .value = &vid_system_gamma },
|
|
};
|
|
bool vid_gamma_avail; // hardware gamma availability
|
|
|
|
VISIBLE unsigned int d_8to24table[256];
|
|
|
|
/* Screen size */
|
|
int vid_width;
|
|
static cvar_t vid_width_cvar = {
|
|
.name = "vid_width",
|
|
.description =
|
|
"screen width",
|
|
.default_value = 0,
|
|
.flags = CVAR_ROM,
|
|
.value = { .type = &cexpr_int, .value = &vid_width },
|
|
};
|
|
int vid_height;
|
|
static cvar_t vid_height_cvar = {
|
|
.name = "vid_height",
|
|
.description =
|
|
"screen height",
|
|
.default_value = 0,
|
|
.flags = CVAR_ROM,
|
|
.value = { .type = &cexpr_int, .value = &vid_height },
|
|
};
|
|
|
|
int vid_fullscreen;
|
|
static cvar_t vid_fullscreen_cvar = {
|
|
.name = "vid_fullscreen",
|
|
.description =
|
|
"Toggles fullscreen mode",
|
|
.default_value = "0",
|
|
.flags = CVAR_ARCHIVE,
|
|
.value = { .type = &cexpr_int, .value = &vid_fullscreen },
|
|
};
|
|
|
|
void
|
|
VID_GetWindowSize (int def_w, int def_h)
|
|
{
|
|
int pnum;
|
|
|
|
vid_width_cvar.default_value = nva ("%d", def_w);
|
|
vid_height_cvar.default_value = nva ("%d", def_h);
|
|
Cvar_Register (&vid_width_cvar, 0, 0);
|
|
Cvar_Register (&vid_height_cvar, 0, 0);
|
|
|
|
if ((pnum = COM_CheckParm ("-width"))) {
|
|
if (pnum >= com_argc - 1)
|
|
Sys_Error ("VID: -width <width>");
|
|
|
|
vid_width = atoi (com_argv[pnum + 1]);
|
|
if (!vid_width)
|
|
Sys_Error ("VID: Bad window width");
|
|
}
|
|
|
|
if ((pnum = COM_CheckParm ("-height"))) {
|
|
if (pnum >= com_argc - 1)
|
|
Sys_Error ("VID: -height <height>");
|
|
|
|
vid_height = atoi (com_argv[pnum + 1]);
|
|
if (!vid_height)
|
|
Sys_Error ("VID: Bad window height");
|
|
}
|
|
|
|
if ((pnum = COM_CheckParm ("-winsize"))) {
|
|
if (pnum >= com_argc - 2)
|
|
Sys_Error ("VID: -winsize <width> <height>");
|
|
|
|
vid_width = atoi (com_argv[pnum + 1]);
|
|
vid_height = atoi (com_argv[pnum + 2]);
|
|
|
|
if (!vid_width || !vid_height)
|
|
Sys_Error ("VID: Bad window width/height");
|
|
}
|
|
|
|
|
|
// viddef.maxlowwidth = LOW_WIDTH;
|
|
// viddef.maxlowheight = LOW_HEIGHT;
|
|
|
|
viddef.width = vid_width;
|
|
viddef.height = vid_height;
|
|
}
|
|
|
|
void
|
|
VID_SetWindowSize (int width, int height)
|
|
{
|
|
if (width < 0 || height < 0) {
|
|
Sys_Error ("VID_SetWindowSize: invalid size: %d, %d", width, height);
|
|
}
|
|
if (width != (int) viddef.width || height != (int) viddef.height) {
|
|
viddef.width = width;
|
|
viddef.height = height;
|
|
if (viddef.onVidResize) {
|
|
LISTENER_INVOKE (viddef.onVidResize, &viddef);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* GAMMA FUNCTIONS */
|
|
|
|
static void
|
|
VID_BuildGammaTable (double gamma)
|
|
{
|
|
int i;
|
|
|
|
if (gamma == 1.0) { // linear, don't bother with the math
|
|
for (i = 0; i < 256; i++) {
|
|
viddef.gammatable[i] = i;
|
|
}
|
|
} else {
|
|
double g = 1.0 / gamma;
|
|
int v;
|
|
|
|
for (i = 0; i < 256; i++) { // Build/update gamma lookup table
|
|
v = (int) ((255.0 * pow ((double) i / 255.0, g)) + 0.5);
|
|
viddef.gammatable[i] = bound (0, v, 255);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
VID_UpdateGamma (void)
|
|
{
|
|
byte *p24;
|
|
byte *p32;
|
|
const byte *col;
|
|
int i;
|
|
|
|
viddef.recalc_refdef = 1; // force a surface cache flush
|
|
|
|
if (vid_gamma_avail && vid_system_gamma) { // Have system, use it
|
|
Sys_MaskPrintf (SYS_vid, "Setting hardware gamma to %g\n", vid_gamma);
|
|
VID_BuildGammaTable (1.0); // hardware gamma wants a linear palette
|
|
VID_SetGamma (vid_gamma);
|
|
p24 = viddef.palette;
|
|
p32 = viddef.palette32;
|
|
col = viddef.basepal;
|
|
for (i = 0; i < 256; i++) {
|
|
*p32++ = *p24++ = *col++;
|
|
*p32++ = *p24++ = *col++;
|
|
*p32++ = *p24++ = *col++;
|
|
*p32++ = 255;
|
|
}
|
|
p32[-1] = 0; // color 255 is transparent
|
|
} else { // We have to hack the palette
|
|
Sys_MaskPrintf (SYS_vid, "Setting software gamma to %g\n", vid_gamma);
|
|
VID_BuildGammaTable (vid_gamma);
|
|
p24 = viddef.palette;
|
|
p32 = viddef.palette32;
|
|
col = viddef.basepal;
|
|
for (i = 0; i < 256; i++) {
|
|
*p32++ = *p24++ = viddef.gammatable[*col++];
|
|
*p32++ = *p24++ = viddef.gammatable[*col++];
|
|
*p32++ = *p24++ = viddef.gammatable[*col++];
|
|
*p32++ = 255;
|
|
}
|
|
p32[-1] = 0; // color 255 is transparent
|
|
// update with the new palette
|
|
vi->set_palette (vi->ctx, viddef.palette);
|
|
}
|
|
}
|
|
|
|
static void
|
|
vid_gamma_f (void *data, const cvar_t *cvar)
|
|
{
|
|
vid_gamma = bound (0.1, vid_gamma, 9.9);
|
|
VID_UpdateGamma ();
|
|
}
|
|
|
|
/*
|
|
VID_InitGamma
|
|
|
|
Initialize the vid_gamma Cvar, and set up the palette
|
|
*/
|
|
void
|
|
VID_InitGamma (const byte *pal)
|
|
{
|
|
int i;
|
|
double gamma = 1.0;
|
|
static int cvar_initialized;
|
|
|
|
free (viddef.gammatable);
|
|
free (viddef.palette);
|
|
free (viddef.palette32);
|
|
viddef.gammatable = malloc (256);
|
|
viddef.basepal = pal;
|
|
viddef.palette = malloc (256 * 3);
|
|
viddef.palette32 = malloc (256 * 4);
|
|
if ((i = COM_CheckParm ("-gamma"))) {
|
|
gamma = atof (com_argv[i + 1]);
|
|
}
|
|
gamma = bound (0.1, gamma, 9.9);
|
|
|
|
if (!cvar_initialized) {
|
|
cvar_initialized = 1;
|
|
Cvar_Register (&vid_gamma_cvar, vid_gamma_f, 0);
|
|
}
|
|
|
|
//VID_BuildGammaTable (vid_gamma);
|
|
VID_UpdateGamma ();
|
|
|
|
if (viddef.onPaletteChanged) {
|
|
LISTENER_INVOKE (viddef.onPaletteChanged, &viddef);
|
|
}
|
|
}
|
|
|
|
void
|
|
VID_ClearMemory (void)
|
|
{
|
|
if (vi->flush_caches) {
|
|
vi->flush_caches (vi->ctx);
|
|
}
|
|
}
|
|
|
|
VISIBLE void
|
|
VID_OnPaletteChange_AddListener (viddef_listener_t listener, void *data)
|
|
{
|
|
if (!viddef.onPaletteChanged) {
|
|
viddef.onPaletteChanged = malloc (sizeof (*viddef.onPaletteChanged));
|
|
LISTENER_SET_INIT (viddef.onPaletteChanged, 8);
|
|
}
|
|
LISTENER_ADD (viddef.onPaletteChanged, listener, data);
|
|
}
|
|
|
|
VISIBLE void
|
|
VID_OnPaletteChange_RemoveListener (viddef_listener_t listener, void *data)
|
|
{
|
|
if (viddef.onPaletteChanged) {
|
|
LISTENER_REMOVE (viddef.onPaletteChanged, listener, data);
|
|
}
|
|
}
|
|
|
|
VISIBLE void
|
|
VID_OnVidResize_AddListener (viddef_listener_t listener, void *data)
|
|
{
|
|
if (!viddef.onVidResize) {
|
|
viddef.onVidResize = malloc (sizeof (*viddef.onVidResize));
|
|
LISTENER_SET_INIT (viddef.onVidResize, 8);
|
|
}
|
|
LISTENER_ADD (viddef.onVidResize, listener, data);
|
|
}
|
|
|
|
VISIBLE void
|
|
VID_OnVidResize_RemoveListener (viddef_listener_t listener, void *data)
|
|
{
|
|
if (viddef.onVidResize) {
|
|
LISTENER_REMOVE (viddef.onVidResize, listener, data);
|
|
}
|
|
}
|
|
|
|
static void
|
|
VID_shutdown (void *data)
|
|
{
|
|
if (vid_system.shutdown) {
|
|
vid_system.shutdown ();
|
|
}
|
|
free ((char *) vid_width_cvar.default_value);
|
|
free ((char *) vid_height_cvar.default_value);
|
|
free (viddef.gammatable);
|
|
free (viddef.palette);
|
|
free (viddef.palette32);
|
|
|
|
if (viddef.onPaletteChanged) {
|
|
DARRAY_CLEAR (viddef.onPaletteChanged);
|
|
free (viddef.onPaletteChanged);
|
|
}
|
|
if (viddef.onVidResize) {
|
|
DARRAY_CLEAR (viddef.onVidResize);
|
|
free (viddef.onVidResize);
|
|
}
|
|
}
|
|
|
|
VISIBLE void
|
|
VID_Init (byte *palette, byte *colormap)
|
|
{
|
|
Sys_RegisterShutdown (VID_shutdown, 0);
|
|
vid_system.init (palette, colormap);
|
|
}
|
|
|
|
VISIBLE void
|
|
VID_SetPalette (byte *palette, byte *colormap)
|
|
{
|
|
vid_system.set_palette (palette, colormap);
|
|
}
|
|
|
|
VISIBLE void
|
|
VID_SetCursor (bool visible)
|
|
{
|
|
if (vid_system.set_cursor) {
|
|
vid_system.set_cursor (visible);
|
|
}
|
|
}
|
|
|
|
static void
|
|
vid_fullscreen_f (void *data, const cvar_t *var)
|
|
{
|
|
vid_system.update_fullscreen (vid_fullscreen);
|
|
}
|
|
|
|
VISIBLE void
|
|
VID_Init_Cvars (void)
|
|
{
|
|
if (vid_system.update_fullscreen) {
|
|
// A bit of a hack, but windows registers a vid_fullscreen command
|
|
// and does fullscreen handling differently.
|
|
Cvar_Register (&vid_fullscreen_cvar, vid_fullscreen_f, 0);
|
|
}
|
|
Cvar_Register (&vid_system_gamma_cvar, 0, 0);
|
|
vid_system.init_cvars ();
|
|
}
|