mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-27 06:34:11 +00:00
dbd3d6502a
I never liked it, but with C2x coming out, it's best to handle bools properly. I haven't gone through all the uses of int as bool (I'll leave that for fixing when I encounter them), but this gets QF working with both c2x (really, gnu2x because of raw strings).
185 lines
4.1 KiB
C
185 lines
4.1 KiB
C
/*
|
|
vid_sdl.c
|
|
|
|
Video driver for Sam Lantinga's Simple DirectMedia Layer
|
|
|
|
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 <stdlib.h>
|
|
#include <SDL.h>
|
|
|
|
#include "QF/console.h"
|
|
#include "QF/cvar.h"
|
|
#include "QF/qendian.h"
|
|
#include "QF/sys.h"
|
|
#include "QF/vid.h"
|
|
|
|
#include "context_sdl.h"
|
|
#include "d_iface.h"
|
|
#include "vid_internal.h"
|
|
#include "vid_gl.h"
|
|
|
|
// Define GLAPIENTRY to a useful value
|
|
#ifndef GLAPIENTRY
|
|
# ifdef _WIN32
|
|
# include <windows.h>
|
|
# define GLAPIENTRY WINAPI
|
|
# undef LoadImage
|
|
# else
|
|
# ifdef APIENTRY
|
|
# define GLAPIENTRY APIENTRY
|
|
# else
|
|
# define GLAPIENTRY
|
|
# endif
|
|
# endif
|
|
#endif
|
|
|
|
static void (GLAPIENTRY *qfglFinish) (void);
|
|
static int use_gl_procaddress = 0;
|
|
static char *gl_driver;
|
|
static cvar_t gl_driver_cvar = {
|
|
.name = "gl_driver",
|
|
.description =
|
|
"The OpenGL library to use. (path optional)",
|
|
.default_value = GL_DRIVER,
|
|
.flags = CVAR_ROM,
|
|
.value = { .type = 0, .value = &gl_driver },
|
|
};
|
|
|
|
static void *
|
|
QFGL_ProcAddress (const char *name, bool crit)
|
|
{
|
|
void *glfunc = NULL;
|
|
|
|
Sys_MaskPrintf (SYS_vid, "DEBUG: Finding symbol %s ... ", name);
|
|
|
|
glfunc = SDL_GL_GetProcAddress (name);
|
|
if (glfunc) {
|
|
Sys_MaskPrintf (SYS_vid, "found [%p]\n", glfunc);
|
|
return glfunc;
|
|
}
|
|
Sys_MaskPrintf (SYS_vid, "not found\n");
|
|
|
|
if (crit) {
|
|
if (strncmp ("fxMesa", name, 6) == 0) {
|
|
Sys_Printf ("This target requires a special version of Mesa with "
|
|
"support for Glide and SVGAlib.\n");
|
|
Sys_Printf ("If you are in X, try using a GLX or SGL target.\n");
|
|
}
|
|
Sys_Error ("Couldn't load critical OpenGL function %s, exiting...",
|
|
name);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
sdlgl_set_vid_mode (gl_ctx_t *ctx)
|
|
{
|
|
int i, j;
|
|
|
|
sdl_flags |= SDL_OPENGL;
|
|
|
|
// Setup GL Attributes
|
|
SDL_GL_SetAttribute (SDL_GL_DOUBLEBUFFER, 1);
|
|
// SDL_GL_SetAttribute (SDL_GL_STENCIL_SIZE, 0); // Try for 0, 8
|
|
// SDL_GL_SetAttribute (SDL_GL_STEREO, 1); // Someday...
|
|
|
|
for (i = 0; i < 5; i++) {
|
|
int k;
|
|
int color[5] = {32, 24, 16, 15, 0};
|
|
int rgba[5][4] = {
|
|
{8, 8, 8, 0},
|
|
{8, 8, 8, 8},
|
|
{5, 6, 5, 0},
|
|
{5, 5, 5, 0},
|
|
{5, 5, 5, 1},
|
|
};
|
|
|
|
SDL_GL_SetAttribute (SDL_GL_RED_SIZE, rgba[i][0]);
|
|
SDL_GL_SetAttribute (SDL_GL_GREEN_SIZE, rgba[i][1]);
|
|
SDL_GL_SetAttribute (SDL_GL_BLUE_SIZE, rgba[i][2]);
|
|
SDL_GL_SetAttribute (SDL_GL_ALPHA_SIZE, rgba[i][3]);
|
|
|
|
for (j = 0; j < 5; j++) {
|
|
for (k = 32; k >= 16; k -= 8) {
|
|
SDL_GL_SetAttribute (SDL_GL_DEPTH_SIZE, k);
|
|
if ((sdl_screen = SDL_SetVideoMode (viddef.width, viddef.height,
|
|
color[j], sdl_flags)))
|
|
goto success;
|
|
}
|
|
}
|
|
}
|
|
|
|
Sys_Error ("Couldn't set video mode: %s", SDL_GetError ());
|
|
SDL_Quit ();
|
|
|
|
success:
|
|
viddef.numpages = 2;
|
|
|
|
ctx->init_gl ();
|
|
}
|
|
|
|
static void
|
|
sdlgl_end_rendering (void)
|
|
{
|
|
qfglFinish ();
|
|
SDL_GL_SwapBuffers ();
|
|
}
|
|
|
|
static void
|
|
sdl_load_gl (void)
|
|
{
|
|
if (SDL_GL_LoadLibrary (gl_driver) != 0)
|
|
Sys_Error ("Couldn't load OpenGL library %s!", gl_driver);
|
|
|
|
use_gl_procaddress = 1;
|
|
|
|
qfglFinish = QFGL_ProcAddress ("glFinish", true);
|
|
}
|
|
|
|
gl_ctx_t *
|
|
SDL_GL_Context (void)
|
|
{
|
|
gl_ctx_t *ctx = calloc (1, sizeof (gl_ctx_t));
|
|
ctx->load_gl = sdl_load_gl;
|
|
ctx->create_context = sdlgl_set_vid_mode;
|
|
ctx->get_proc_address = QFGL_ProcAddress;
|
|
ctx->end_rendering = sdlgl_end_rendering;
|
|
return ctx;
|
|
}
|
|
|
|
void
|
|
SDL_GL_Init_Cvars ()
|
|
{
|
|
Cvar_Register (&gl_driver_cvar, 0, 0);
|
|
}
|