From df2b13dc061041609230583cc35639029c03f611 Mon Sep 17 00:00:00 2001 From: "Ryan C. Gordon" Date: Tue, 22 Nov 2005 15:19:50 +0000 Subject: [PATCH] To: sdl@libsdl.org From: Staffan Ulfberg Date: 19 Nov 2005 01:00:48 +0100 Subject: [SDL] New driver for OpenBSD/wscons Hello, I've written an SDL driver for OpenBSD/wscons (console mode, somewhat resembling the functionality of the svga driver for Linux). I use it for playing MAME on my Sharp Zaurus. The alternative is to play under X, which is slower. I asked how to submit the driver a few days ago, and posted a link to the patch in a follow-up, so maybe it was missed? Anyway, the patch is on the web at: http://multivac.fatburen.org/SDL-wscons.patch Comments? Staffan --- README.wscons | 107 +++++ configure.in | 33 ++ src/video/Makefile.am | 2 +- src/video/SDL_sysvideo.h | 3 + src/video/SDL_video.c | 3 + src/video/wscons/Makefile.am | 14 + src/video/wscons/SDL_wsconsevents.c | 236 ++++++++++ src/video/wscons/SDL_wsconsevents_c.h | 40 ++ src/video/wscons/SDL_wsconsmouse.c | 40 ++ src/video/wscons/SDL_wsconsmouse_c.h | 30 ++ src/video/wscons/SDL_wsconsvideo.c | 614 ++++++++++++++++++++++++++ src/video/wscons/SDL_wsconsvideo.h | 79 ++++ 12 files changed, 1200 insertions(+), 1 deletion(-) create mode 100644 README.wscons create mode 100644 src/video/wscons/Makefile.am create mode 100644 src/video/wscons/SDL_wsconsevents.c create mode 100644 src/video/wscons/SDL_wsconsevents_c.h create mode 100644 src/video/wscons/SDL_wsconsmouse.c create mode 100644 src/video/wscons/SDL_wsconsmouse_c.h create mode 100644 src/video/wscons/SDL_wsconsvideo.c create mode 100644 src/video/wscons/SDL_wsconsvideo.h diff --git a/README.wscons b/README.wscons new file mode 100644 index 000000000..349c89c99 --- /dev/null +++ b/README.wscons @@ -0,0 +1,107 @@ +============================================================================== +Using the Simple DirectMedia Layer with OpenBSD/wscons +============================================================================== + +The wscons SDL driver can be used to run SDL programs on OpenBSD +without running X. So far, the driver only runs on the Sharp Zaurus, +but the driver is written to be easily extended for other machines. +The main missing pieces are blitting routines for anything but 16 bit +displays, and keycode maps for other keyboards. Also, there is no +support for hardware palettes. + +There is currently no mouse support. + +To compile SDL with support for wscons, use the +"--enable-video-wscons" option when running configure. I used the +following command line: + +./configure --disable-oss --disable-ltdl --enable-pthread-sem \ + --disable-esd --disable-arts --disable-video-aalib \ + --enable-openbsdaudio --enable-video-wscons \ + --prefix=/usr/local --sysconfdir=/etc + + +Setting the console device to use +================================= + +When starting an SDL program on a wscons console, the driver uses the +current virtual terminal (usually /dev/ttyC0). To force the driver to +use a specific terminal device, set the environment variable +SDL_WSCONSDEV: + +bash$ SDL_WSCONSDEV=/dev/ttyC1 ./some-sdl-program + +This is especially useful when starting an SDL program from a remote +login prompt (which is great for development). If you do this, and +want to use keyboard input, you should avoid having some other program +reading from the used virtual console (i.e., do not have a getty +running). + + +Rotating the display +==================== + +The display can be rotated by the wscons SDL driver. This is useful +for the Sharp Zaurus, since the display hardware is wired so that it +is correctly rotated only when the display is folded into "PDA mode." +When using the Zaurus in "normal," or "keyboard" mode, the hardware +screen is rotated 90 degrees anti-clockwise. + +To let the wscons SDL driver rotate the screen, set the environment +variable SDL_VIDEO_WSCONS_ROTATION to "CW", "CCW", or "UD", for +clockwise, counter clockwise, and upside-down rotation respectively. +"CW" makes the screen appear correct on a Sharp Zaurus SL-C3100. + +When using rotation in the driver, a "shadow" frame buffer is used to +hold the intermediary display, before blitting it to the actual +hardware frame buffer. This slows down performance a bit. + +For completeness, the rotation "NONE" can be specified to use a shadow +frame buffer without actually rotating. Unsetting +SDL_VIDEO_WSCONS_ROTATION, or setting it to '' turns off the shadow +frame buffer for maximum performance. + + +Running MAME +============ + +Since my main motivation for writing the driver was playing MAME on +the Zaurus, I'll give a few hints: + +XMame compiles just fine under OpenBSD. + +I'm not sure this is strictly necessary, but set + +MY_CPU = arm + +in makefile.unix, and + +CFLAGS.arm = -DLSB_FIRST -DALIGN_INTS -DALIGN_SHORTS + +in src/unix/unix.max + +to be sure. + +The latest XMame (0.101 at this writing) is a very large program. +Either tinker with the make files to compile a version without support +for all drivers, or, get an older version of XMame. My recommendation +would be 0.37b16. + +When running MAME, DO NOT SET SDL_VIDEO_WSCONS_ROTATION! Performace +is MUCH better without this, and it is COMPLETELY UNNECESSARY, since +MAME can rotate the picture itself while drawing, and does so MUCH +FASTER. + +Use the Xmame command line option "-ror" to rotate the picture to the +right. + + +Acknowledgments +=============== + +I studied the wsfb driver for XFree86/Xorg quite a bit before writing +this, so there ought to be some similarities. + + +-- +Staffan Ulfberg diff --git a/configure.in b/configure.in index f8581222d..60625100e 100644 --- a/configure.in +++ b/configure.in @@ -1645,6 +1645,37 @@ CheckQtopia() fi } +dnl Set up the wscons video driver if enabled +CheckWscons() +{ + AC_ARG_ENABLE(video-wscons, +[ --enable-video-wscons use wscons video driver [default=no]], + , enable_video_wscons=no) + if test x$enable_video = xyes -a x$enable_video_wscons = xyes; then + AC_MSG_CHECKING(for wscons support) + video_wscons=no + AC_LANG_C + AC_TRY_COMPILE([ + #include + #include + ],[ + ],[ + video_wscons=yes + ]) + AC_MSG_RESULT($video_wscons) + if test x$video_wscons = xyes; then + CFLAGS="$CFLAGS -DENABLE_WSCONS" + VIDEO_SUBDIRS="$VIDEO_SUBDIRS wscons" + VIDEO_DRIVERS="$VIDEO_DRIVERS wscons/libvideo_wscons.la" + else + AC_MSG_ERROR([ +*** Failed to find wscons includes.]) + fi + AC_LANG_C + fi +} + + dnl Set up the PicoGUI video driver if enabled CheckPicoGUI() { @@ -2210,6 +2241,7 @@ case "$target" in CheckNAS CheckX11 CheckAAlib + CheckWscons CheckOpenGL CheckPTHREAD CheckSIGACTION @@ -3088,6 +3120,7 @@ src/video/photon/Makefile src/video/picogui/Makefile src/video/ps2gs/Makefile src/video/qtopia/Makefile +src/video/wscons/Makefile src/video/quartz/Makefile src/video/riscos/Makefile src/video/svga/Makefile diff --git a/src/video/Makefile.am b/src/video/Makefile.am index d25198987..f8133f2d8 100644 --- a/src/video/Makefile.am +++ b/src/video/Makefile.am @@ -9,7 +9,7 @@ DIST_SUBDIRS = dummy x11 dga nanox fbcon directfb vgl svga ggi aalib \ wincommon windib windx5 \ maccommon macdsp macrom riscos quartz \ bwindow ps2gs photon cybergfx epoc picogui \ - ataricommon xbios gem dc qtopia XFree86 + ataricommon xbios gem dc qtopia XFree86 wscons DRIVERS = @VIDEO_DRIVERS@ diff --git a/src/video/SDL_sysvideo.h b/src/video/SDL_sysvideo.h index 647f809df..a83d8a22f 100644 --- a/src/video/SDL_sysvideo.h +++ b/src/video/SDL_sysvideo.h @@ -411,6 +411,9 @@ extern VideoBootStrap GEM_bootstrap; #ifdef ENABLE_QTOPIA extern VideoBootStrap Qtopia_bootstrap; #endif +#ifdef ENABLE_WSCONS +extern VideoBootStrap WSCONS_bootstrap; +#endif #ifdef ENABLE_PICOGUI extern VideoBootStrap PG_bootstrap; #endif diff --git a/src/video/SDL_video.c b/src/video/SDL_video.c index 084b2451a..66d110d62 100644 --- a/src/video/SDL_video.c +++ b/src/video/SDL_video.c @@ -63,6 +63,9 @@ static VideoBootStrap *bootstrap[] = { #ifdef ENABLE_QTOPIA &Qtopia_bootstrap, #endif +#ifdef ENABLE_WSCONS + &WSCONS_bootstrap, +#endif #ifdef ENABLE_FBCON &FBCON_bootstrap, #endif diff --git a/src/video/wscons/Makefile.am b/src/video/wscons/Makefile.am new file mode 100644 index 000000000..76ae67278 --- /dev/null +++ b/src/video/wscons/Makefile.am @@ -0,0 +1,14 @@ +## Makefile.am for SDL using the wscons video driver + +noinst_LTLIBRARIES = libvideo_wscons.la +libvideo_wscons_la_SOURCES = $(WSCONS_SRCS) + +# The SDL wscons video driver sources +WSCONS_SRCS = \ + SDL_wsconsvideo.h \ + SDL_wsconsevents.c \ + SDL_wsconsevents_c.h \ + SDL_wsconsmouse.c \ + SDL_wsconsmouse_c.h \ + SDL_wsconsvideo.c + diff --git a/src/video/wscons/SDL_wsconsevents.c b/src/video/wscons/SDL_wsconsevents.c new file mode 100644 index 000000000..f30c6b9d9 --- /dev/null +++ b/src/video/wscons/SDL_wsconsevents.c @@ -0,0 +1,236 @@ +/* + SDL - Simple DirectMedia Layer + Copyright (C) 1997-2004 Sam Lantinga + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with this library; if not, write to the Free + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + Sam Lantinga + slouken@libsdl.org +*/ + +#ifdef SAVE_RCSID +static char rcsid = + "@(#) $Id$"; +#endif + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "SDL.h" +#include "SDL_sysevents.h" +#include "SDL_events_c.h" +#include "SDL_wsconsvideo.h" +#include "SDL_wsconsevents_c.h" + +static int posted = 0; + +int WSCONS_InitKeyboard(_THIS) +{ + struct termios tty; + + if (ioctl(private->fd, WSKBDIO_GTYPE, &private->kbdType) == -1) { + WSCONS_ReportError("cannot get keyboard type: %s", strerror(errno)); + return -1; + } + + if (tcgetattr(private->fd, &private->saved_tty) == -1) { + WSCONS_ReportError("cannot get terminal attributes: %s", strerror(errno)); + return -1; + } + private->did_save_tty = 1; + tty = private->saved_tty; + tty.c_iflag = IGNPAR | IGNBRK; + tty.c_oflag = 0; + tty.c_cflag = CREAD | CS8; + tty.c_lflag = 0; + tty.c_cc[VTIME] = 0; + tty.c_cc[VMIN] = 1; + cfsetispeed(&tty, 9600); + cfsetospeed(&tty, 9600); + if (tcsetattr(private->fd, TCSANOW, &tty) < 0) { + WSCONS_ReportError("cannot set terminal attributes: %s", strerror(errno)); + return -1; + } + if (ioctl(private->fd, KDSKBMODE, K_RAW) == -1) { + WSCONS_ReportError("cannot set raw keyboard mode: %s", strerror(errno)); + return -1; + } + + return 0; +} + +void WSCONS_ReleaseKeyboard(_THIS) +{ + if (private->fd != -1) { + if (ioctl(private->fd, KDSKBMODE, K_XLATE) == -1) { + WSCONS_ReportError("cannot restore keyboard to translated mode: %s", + strerror(errno)); + } + if (private->did_save_tty) { + if (tcsetattr(private->fd, TCSANOW, &private->saved_tty) < 0) { + WSCONS_ReportError("cannot restore keynoard attributes: %s", + strerror(errno)); + } + } + } +} + +static void updateMouse() +{ +} + +static SDLKey keymap[128]; + +static SDL_keysym *TranslateKey(int scancode, SDL_keysym *keysym) +{ + keysym->scancode = scancode; + keysym->sym = SDLK_UNKNOWN; + keysym->mod = KMOD_NONE; + + if (scancode < SDL_TABLESIZE(keymap)) + keysym->sym = keymap[scancode]; + + if (keysym->sym == SDLK_UNKNOWN) + printf("Unknown mapping for scancode %d\n", scancode); + + return keysym; +} + +static void updateKeyboard(_THIS) +{ + unsigned char buf[100]; + SDL_keysym keysym; + int n, i; + + if ((n = read(private->fd, buf, sizeof(buf))) > 0) { + for (i = 0; i < n; i++) { + char c = buf[i] & 0x7f; + if (c == 224) // special key prefix -- what should we do with it? + continue; + int release = (buf[i] & 0x80) != 0; + posted += SDL_PrivateKeyboard(release ? SDL_RELEASED : SDL_PRESSED, + TranslateKey(c, &keysym)); + } + } +} + +void WSCONS_PumpEvents(_THIS) +{ + do { + posted = 0; + updateMouse(); + updateKeyboard(this); + } while (posted); +} + +void WSCONS_InitOSKeymap(_THIS) +{ + int i; + + /* Make sure unknown keys are mapped correctly */ + for (i=0; i < SDL_TABLESIZE(keymap); i++) { + keymap[i] = SDLK_UNKNOWN; + } + + switch (private->kbdType) { + case WSKBD_TYPE_ZAURUS: + /* top row */ + keymap[2] = SDLK_1; + keymap[3] = SDLK_2; + keymap[4] = SDLK_3; + keymap[5] = SDLK_4; + keymap[6] = SDLK_5; + keymap[7] = SDLK_6; + keymap[8] = SDLK_7; + keymap[9] = SDLK_8; + keymap[10] = SDLK_9; + keymap[11] = SDLK_0; + keymap[14] = SDLK_BACKSPACE; + + /* second row */ + keymap[16] = SDLK_q; + keymap[17] = SDLK_w; + keymap[18] = SDLK_e; + keymap[19] = SDLK_r; + keymap[20] = SDLK_t; + keymap[21] = SDLK_y; + keymap[22] = SDLK_u; + keymap[23] = SDLK_i; + keymap[24] = SDLK_o; + keymap[25] = SDLK_p; + + /* third row */ + keymap[15] = SDLK_TAB; + keymap[30] = SDLK_a; + keymap[31] = SDLK_s; + keymap[32] = SDLK_d; + keymap[33] = SDLK_f; + keymap[34] = SDLK_g; + keymap[35] = SDLK_h; + keymap[36] = SDLK_j; + keymap[37] = SDLK_k; + keymap[38] = SDLK_l; + + /* fourth row */ + keymap[42] = SDLK_LSHIFT; + keymap[44] = SDLK_z; + keymap[45] = SDLK_x; + keymap[46] = SDLK_c; + keymap[47] = SDLK_v; + keymap[48] = SDLK_b; + keymap[49] = SDLK_n; + keymap[50] = SDLK_m; + keymap[54] = SDLK_RSHIFT; + keymap[28] = SDLK_RETURN; + + /* fifth row */ + keymap[56] = SDLK_LALT; + keymap[29] = SDLK_LCTRL; + /* keymap[56] = ; */ + keymap[0] = SDLK_LSUPER; + keymap[12] = SDLK_MINUS; + keymap[57] = SDLK_SPACE; + keymap[51] = SDLK_COMMA; + keymap[52] = SDLK_PERIOD; + + /* misc */ + keymap[59] = SDLK_F1; + keymap[60] = SDLK_F2; + keymap[61] = SDLK_F3; + keymap[62] = SDLK_F4; + keymap[63] = SDLK_F5; + keymap[1] = SDLK_ESCAPE; + /* keymap[28] = SDLK_KP_ENTER; */ + keymap[72] = SDLK_UP; + keymap[75] = SDLK_LEFT; + keymap[77] = SDLK_RIGHT; + keymap[80] = SDLK_DOWN; + break; + + default: + WSCONS_ReportError("Unable to map keys for keyboard type %u", + private->kbdType); + break; + } +} + +/* end of SDL_wsconsevents.c ... */ + diff --git a/src/video/wscons/SDL_wsconsevents_c.h b/src/video/wscons/SDL_wsconsevents_c.h new file mode 100644 index 000000000..f4a3e7703 --- /dev/null +++ b/src/video/wscons/SDL_wsconsevents_c.h @@ -0,0 +1,40 @@ +/* + SDL - Simple DirectMedia Layer + Copyright (C) 1997-2004 Sam Lantinga + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with this library; if not, write to the Free + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + Sam Lantinga + slouken@libsdl.org +*/ + +#ifdef SAVE_RCSID +static char rcsid = + "@(#) $Id$"; +#endif + +#include "SDL_wsconsvideo.h" + +int WSCONS_InitKeyboard(_THIS); +void WSCONS_ReleaseKeyboard(_THIS); + +/* Variables and functions exported by SDL_sysevents.c to other parts + of the native video subsystem (SDL_sysvideo.c) +*/ +extern void WSCONS_InitOSKeymap(_THIS); +extern void WSCONS_PumpEvents(_THIS); + +/* end of SDL_wsconsevents_c.h ... */ + diff --git a/src/video/wscons/SDL_wsconsmouse.c b/src/video/wscons/SDL_wsconsmouse.c new file mode 100644 index 000000000..39f0eaf95 --- /dev/null +++ b/src/video/wscons/SDL_wsconsmouse.c @@ -0,0 +1,40 @@ +/* + SDL - Simple DirectMedia Layer + Copyright (C) 1997-2004 Sam Lantinga + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with this library; if not, write to the Free + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + Sam Lantinga + slouken@libsdl.org +*/ + +#ifdef SAVE_RCSID +static char rcsid = + "@(#) $Id$"; +#endif + +#include + +#include "SDL_error.h" +#include "SDL_mouse.h" +#include "SDL_events_c.h" + +#include "SDL_wsconsmouse_c.h" + + +/* The implementation dependent data for the window manager cursor */ +struct WMcursor { + int unused; +}; diff --git a/src/video/wscons/SDL_wsconsmouse_c.h b/src/video/wscons/SDL_wsconsmouse_c.h new file mode 100644 index 000000000..c2e3cf4aa --- /dev/null +++ b/src/video/wscons/SDL_wsconsmouse_c.h @@ -0,0 +1,30 @@ +/* + SDL - Simple DirectMedia Layer + Copyright (C) 1997-2004 Sam Lantinga + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with this library; if not, write to the Free + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + Sam Lantinga + slouken@libsdl.org +*/ + +#ifdef SAVE_RCSID +static char rcsid = + "@(#) $Id$"; +#endif + +#include "SDL_wsconsvideo.h" + +/* Functions to be exported */ diff --git a/src/video/wscons/SDL_wsconsvideo.c b/src/video/wscons/SDL_wsconsvideo.c new file mode 100644 index 000000000..a2cc35199 --- /dev/null +++ b/src/video/wscons/SDL_wsconsvideo.c @@ -0,0 +1,614 @@ +/* + SDL - Simple DirectMedia Layer + Copyright (C) 1997-2004 Sam Lantinga + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with this library; if not, write to the Free + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + Sam Lantinga + slouken@libsdl.org +*/ + +#ifdef SAVE_RCSID +static char rcsid = + "@(#) $Id$"; +#endif + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "SDL.h" +#include "SDL_error.h" +#include "SDL_video.h" +#include "SDL_mouse.h" +#include "SDL_sysvideo.h" +#include "SDL_pixels_c.h" +#include "SDL_events_c.h" + +#include "SDL_wsconsvideo.h" +#include "SDL_wsconsevents_c.h" +#include "SDL_wsconsmouse_c.h" + +#define WSCONSVID_DRIVER_NAME "wscons" +enum { + WSCONS_ROTATE_NONE = 0, + WSCONS_ROTATE_CCW = 90, + WSCONS_ROTATE_UD = 180, + WSCONS_ROTATE_CW = 270 +}; + +#define min(a,b) ((a)<(b)?(a):(b)) + +/* Initialization/Query functions */ +static int WSCONS_VideoInit(_THIS, SDL_PixelFormat *vformat); +static SDL_Rect **WSCONS_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags); +static SDL_Surface *WSCONS_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); +static int WSCONS_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors); +static void WSCONS_VideoQuit(_THIS); + +/* Hardware surface functions */ +static int WSCONS_AllocHWSurface(_THIS, SDL_Surface *surface); +static int WSCONS_LockHWSurface(_THIS, SDL_Surface *surface); +static void WSCONS_UnlockHWSurface(_THIS, SDL_Surface *surface); +static void WSCONS_FreeHWSurface(_THIS, SDL_Surface *surface); + +/* etc. */ +static WSCONS_bitBlit WSCONS_blit16; +static WSCONS_bitBlit WSCONS_blit16blocked; +static void WSCONS_UpdateRects(_THIS, int numrects, SDL_Rect *rects); + +void WSCONS_ReportError(char *fmt, ...) +{ + char message[200]; + + message[199] = '\0'; + + va_list vaArgs; + va_start(vaArgs, fmt); + vsnprintf(message, 199, fmt, vaArgs); + va_end(vaArgs); + + SDL_SetError(message); + fprintf(stderr, "WSCONS error: %s\n", message); +} + +/* WSCONS driver bootstrap functions */ + +static int WSCONS_Available(void) +{ + return 1; +} + +static void WSCONS_DeleteDevice(SDL_VideoDevice *device) +{ + free(device->hidden); + free(device); +} + +static SDL_VideoDevice *WSCONS_CreateDevice(int devindex) +{ + SDL_VideoDevice *device; + + /* Initialize all variables that we clean on shutdown */ + device = (SDL_VideoDevice *)malloc(sizeof(SDL_VideoDevice)); + if (device == NULL) { + SDL_OutOfMemory(); + return 0; + } + memset(device, 0, (sizeof *device)); + device->hidden = + (struct SDL_PrivateVideoData *)malloc((sizeof *device->hidden)); + if (device->hidden == NULL) { + SDL_OutOfMemory(); + free(device); + return(0); + } + memset(device->hidden, 0, (sizeof *device->hidden)); + device->hidden->fd = -1; + + /* Set the function pointers */ + device->VideoInit = WSCONS_VideoInit; + device->ListModes = WSCONS_ListModes; + device->SetVideoMode = WSCONS_SetVideoMode; + device->SetColors = WSCONS_SetColors; + device->UpdateRects = WSCONS_UpdateRects; + device->VideoQuit = WSCONS_VideoQuit; + device->AllocHWSurface = WSCONS_AllocHWSurface; + device->LockHWSurface = WSCONS_LockHWSurface; + device->UnlockHWSurface = WSCONS_UnlockHWSurface; + device->FreeHWSurface = WSCONS_FreeHWSurface; + device->InitOSKeymap = WSCONS_InitOSKeymap; + device->PumpEvents = WSCONS_PumpEvents; + device->free = WSCONS_DeleteDevice; + + return device; +} + +VideoBootStrap WSCONS_bootstrap = { + WSCONSVID_DRIVER_NAME, + "SDL wscons video driver", + WSCONS_Available, + WSCONS_CreateDevice +}; + +#define WSCONSDEV_FORMAT "/dev/ttyC%01x" + +int WSCONS_VideoInit(_THIS, SDL_PixelFormat *vformat) +{ + char devnamebuf[30]; + char *devname; + char *rotation; + int wstype; + int wsmode = WSDISPLAYIO_MODE_DUMBFB; + size_t len, mapsize; + int pagemask; + int width, height; + + devname = getenv("SDL_WSCONSDEV"); + if (devname == NULL) { + int activeVT; + if (ioctl(STDIN_FILENO, VT_GETACTIVE, &activeVT) == -1) { + WSCONS_ReportError("Unable to determine active terminal: %s", + strerror(errno)); + return -1; + } + snprintf(devnamebuf, sizeof(devnamebuf), WSCONSDEV_FORMAT, activeVT - 1); + devname = devnamebuf; + } + + private->fd = open(devname, O_RDWR | O_NONBLOCK, 0); + if (private->fd == -1) { + WSCONS_ReportError("open %s: %s", devname, strerror(errno)); + return -1; + } + if (ioctl(private->fd, WSDISPLAYIO_GINFO, &private->info) == -1) { + WSCONS_ReportError("ioctl WSDISPLAY_GINFO: %s", strerror(errno)); + return -1; + } + if (ioctl(private->fd, WSDISPLAYIO_GTYPE, &wstype) == -1) { + WSCONS_ReportError("ioctl WSDISPLAY_GTYPE: %s", strerror(errno)); + return -1; + } + if (ioctl(private->fd, WSDISPLAYIO_LINEBYTES, &private->physlinebytes) == -1) { + WSCONS_ReportError("ioctl WSDISPLAYIO_LINEBYTES: %s", strerror(errno)); + return -1; + } + if (private->info.depth > 8) { + if (wstype == WSDISPLAY_TYPE_SUN24 || + wstype == WSDISPLAY_TYPE_SUNCG12 || + wstype == WSDISPLAY_TYPE_SUNCG14 || + wstype == WSDISPLAY_TYPE_SUNTCX || + wstype == WSDISPLAY_TYPE_SUNFFB) { + private->redMask = 0x0000ff; + private->greenMask = 0x00ff00; + private->blueMask = 0xff0000; + } else if (wstype == WSDISPLAY_TYPE_PXALCD) { + private->redMask = 0x1f << 11; + private->greenMask = 0x3f << 5; + private->blueMask = 0x1f; + } else { + WSCONS_ReportError("Unknown video hardware"); + return -1; + } + } else { + WSCONS_ReportError("Displays with 8 bpp or less are not supported"); + return -1; + } + + private->rotate = WSCONS_ROTATE_NONE; + rotation = getenv("SDL_VIDEO_WSCONS_ROTATION"); + if (rotation != NULL) { + if (strlen(rotation) == 0) { + private->shadowFB = 0; + private->rotate = WSCONS_ROTATE_NONE; + printf("Not rotating, no shadow\n"); + } else if (!strcmp(rotation, "NONE")) { + private->shadowFB = 1; + private->rotate = WSCONS_ROTATE_NONE; + printf("Not rotating, but still using shadow\n"); + } else if (!strcmp(rotation, "CW")) { + private->shadowFB = 1; + private->rotate = WSCONS_ROTATE_CW; + printf("Rotating screen clockwise\n"); + } else if (!strcmp(rotation, "CCW")) { + private->shadowFB = 1; + private->rotate = WSCONS_ROTATE_CCW; + printf("Rotating screen counter clockwise\n"); + } else if (!strcmp(rotation, "UD")) { + private->shadowFB = 1; + private->rotate = WSCONS_ROTATE_UD; + printf("Rotating screen upside down\n"); + } else { + WSCONS_ReportError("\"%s\" is not a valid value for " + "SDL_VIDEO_WSCONS_ROTATION", rotation); + return -1; + } + } + + switch (private->info.depth) { + case 1: + case 4: + case 8: + len = private->physlinebytes * private->info.height; + break; + case 16: + if (private->physlinebytes == private->info.width) { + len = private->info.width * private->info.height * sizeof(short); + } else { + len = private->physlinebytes * private->info.height; + } + if (private->rotate == WSCONS_ROTATE_NONE || + private->rotate == WSCONS_ROTATE_UD) { + private->blitFunc = WSCONS_blit16; + } else { + private->blitFunc = WSCONS_blit16blocked; + } + break; + case 32: + if (private->physlinebytes == private->info.width) { + len = private->info.width * private->info.height * sizeof(int); + } else { + len = private->physlinebytes * private->info.height; + } + break; + default: + WSCONS_ReportError("unsupported depth %d", private->info.depth); + return -1; + } + + if (private->shadowFB && private->blitFunc == NULL) { + WSCONS_ReportError("Using software buffer, but no blitter function is " + "available for this %d bpp.", private->info.depth); + return -1; + } + + if (ioctl(private->fd, WSDISPLAYIO_SMODE, &wsmode) == -1) { + WSCONS_ReportError("ioctl SMODE"); + return -1; + } + + pagemask = getpagesize() - 1; + mapsize = ((int)len + pagemask) & ~pagemask; + private->physmem = (Uint8 *)mmap(NULL, mapsize, + PROT_READ | PROT_WRITE, MAP_SHARED, + private->fd, (off_t)0); + if (private->physmem == (Uint8 *)MAP_FAILED) { + private->physmem = NULL; + WSCONS_ReportError("mmap: %s", strerror(errno)); + return -1; + } + private->fbmem_len = len; + + if (private->rotate == WSCONS_ROTATE_CW || + private->rotate == WSCONS_ROTATE_CCW) { + width = private->info.height; + height = private->info.width; + } else { + width = private->info.width; + height = private->info.height; + } + + if (private->shadowFB) { + private->shadowmem = (Uint8 *)malloc(len); + if (private->shadowmem == NULL) { + WSCONS_ReportError("No memory for shadow"); + return -1; + } + private->fbstart = private->shadowmem; + private->fblinebytes = width * ((private->info.depth + 7) / 8); + } else { + private->fbstart = private->physmem; + private->fblinebytes = private->physlinebytes; + } + + private->SDL_modelist[0] = (SDL_Rect *)malloc(sizeof(SDL_Rect)); + private->SDL_modelist[0]->w = width; + private->SDL_modelist[0]->h = height; + + vformat->BitsPerPixel = private->info.depth; + vformat->BytesPerPixel = private->info.depth / 8; + + if (WSCONS_InitKeyboard(this) == -1) { + return -1; + } + + return 0; +} + +SDL_Rect **WSCONS_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) +{ + if (format->BitsPerPixel == private->info.depth) { + return private->SDL_modelist; + } else { + return NULL; + } +} + +SDL_Surface *WSCONS_SetVideoMode(_THIS, SDL_Surface *current, + int width, int height, int bpp, Uint32 flags) +{ + if (width != private->SDL_modelist[0]->w || + height != private->SDL_modelist[0]->h) { + WSCONS_ReportError("Requested video mode %dx%d not supported.", + width, height); + return NULL; + } + if (bpp != private->info.depth) { + WSCONS_ReportError("Requested video depth %d bpp not supported.", bpp); + return NULL; + } + + if (!SDL_ReallocFormat(current, + bpp, + private->redMask, + private->greenMask, + private->blueMask, + 0)) { + WSCONS_ReportError("Couldn't allocate new pixel format"); + return NULL; + } + + current->flags &= SDL_FULLSCREEN; + if (private->shadowFB) { + current->flags |= SDL_SWSURFACE; + } else { + current->flags |= SDL_HWSURFACE; + } + current->w = width; + current->h = height; + current->pitch = private->fblinebytes; + current->pixels = private->fbstart; + + memset(private->fbstart, 0, private->fbmem_len); + + return current; +} + +static int WSCONS_AllocHWSurface(_THIS, SDL_Surface *surface) +{ + return -1; +} +static void WSCONS_FreeHWSurface(_THIS, SDL_Surface *surface) +{ +} + +static int WSCONS_LockHWSurface(_THIS, SDL_Surface *surface) +{ + return 0; +} + +static void WSCONS_UnlockHWSurface(_THIS, SDL_Surface *surface) +{ +} + +static void WSCONS_blit16(Uint8 *byte_src_pos, + int srcRightDelta, + int srcDownDelta, + Uint8 *byte_dst_pos, + int dst_linebytes, + int width, + int height) +{ + int w; + Uint16 *src_pos = (Uint16 *)byte_src_pos; + Uint16 *dst_pos = (Uint16 *)byte_dst_pos; + + while (height) { + Uint16 *src = src_pos; + Uint16 *dst = dst_pos; + for (w = width; w != 0; w--) { + *dst = *src; + src += srcRightDelta; + dst++; + } + dst_pos = (Uint16 *)((Uint8 *)dst_pos + dst_linebytes); + src_pos += srcDownDelta; + height--; + } +} + +#define BLOCKSIZE_W 32 +#define BLOCKSIZE_H 32 + +static void WSCONS_blit16blocked(Uint8 *byte_src_pos, + int srcRightDelta, + int srcDownDelta, + Uint8 *byte_dst_pos, + int dst_linebytes, + int width, + int height) +{ + int w; + Uint16 *src_pos = (Uint16 *)byte_src_pos; + Uint16 *dst_pos = (Uint16 *)byte_dst_pos; + + while (height > 0) { + Uint16 *src = src_pos; + Uint16 *dst = dst_pos; + for (w = width; w > 0; w -= BLOCKSIZE_W) { + WSCONS_blit16((Uint8 *)src, + srcRightDelta, + srcDownDelta, + (Uint8 *)dst, + dst_linebytes, + min(w, BLOCKSIZE_W), + min(height, BLOCKSIZE_H)); + src += srcRightDelta * BLOCKSIZE_W; + dst += BLOCKSIZE_W; + } + dst_pos = (Uint16 *)((Uint8 *)dst_pos + dst_linebytes * BLOCKSIZE_H); + src_pos += srcDownDelta * BLOCKSIZE_H; + height -= BLOCKSIZE_H; + } +} + +static void WSCONS_UpdateRects(_THIS, int numrects, SDL_Rect *rects) +{ + int width = private->SDL_modelist[0]->w; + int height = private->SDL_modelist[0]->h; + int bytesPerPixel = (private->info.depth + 7) / 8; + int i; + + if (!private->shadowFB) { + return; + } + + if (private->info.depth != 16) { + WSCONS_ReportError("Shadow copy only implemented for 16 bpp"); + return; + } + + for (i = 0; i < numrects; i++) { + int x1, y1, x2, y2; + int scr_x1, scr_y1, scr_x2, scr_y2; + int sha_x1, sha_y1; + int shadowRightDelta; /* Address change when moving right in dest */ + int shadowDownDelta; /* Address change when moving down in dest */ + Uint8 *src_start; + Uint8 *dst_start; + + x1 = rects[i].x; + y1 = rects[i].y; + x2 = x1 + rects[i].w; + y2 = y1 + rects[i].h; + + if (x1 < 0) { + x1 = 0; + } else if (x1 > width) { + x1 = width; + } + if (x2 < 0) { + x2 = 0; + } else if (x2 > width) { + x2 = width; + } + if (y1 < 0) { + y1 = 0; + } else if (y1 > height) { + y1 = height; + } + if (y2 < 0) { + y2 = 0; + } else if (y2 > height) { + y2 = height; + } + if (x2 <= x1 || y2 <= y1) { + continue; + } + + switch (private->rotate) { + case WSCONS_ROTATE_NONE: + sha_x1 = scr_x1 = x1; + sha_y1 = scr_y1 = y1; + scr_x2 = x2; + scr_y2 = y2; + shadowRightDelta = 1; + shadowDownDelta = width; + break; + case WSCONS_ROTATE_CCW: + scr_x1 = y1; + scr_y1 = width - x2; + scr_x2 = y2; + scr_y2 = width - x1; + sha_x1 = x2 - 1; + sha_y1 = y1; + shadowRightDelta = width; + shadowDownDelta = -1; + break; + case WSCONS_ROTATE_UD: + scr_x1 = width - x2; + scr_y1 = height - y2; + scr_x2 = width - x1; + scr_y2 = height - y1; + sha_x1 = x2 - 1; + sha_y1 = y2 - 1; + shadowRightDelta = -1; + shadowDownDelta = -width; + break; + case WSCONS_ROTATE_CW: + scr_x1 = height - y2; + scr_y1 = x1; + scr_x2 = height - y1; + scr_y2 = x2; + sha_x1 = x1; + sha_y1 = y2 - 1; + shadowRightDelta = -width; + shadowDownDelta = 1; + break; + default: + WSCONS_ReportError("Unknown rotation"); + return; + } + + src_start = private->shadowmem + (sha_y1 * width + sha_x1) * bytesPerPixel; + dst_start = private->physmem + scr_y1 * private->physlinebytes + + scr_x1 * bytesPerPixel; + + private->blitFunc(src_start, + shadowRightDelta, + shadowDownDelta, + dst_start, + private->physlinebytes, + scr_x2 - scr_x1, + scr_y2 - scr_y1); + } +} + +int WSCONS_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors) +{ + return 0; +} + +/* + * Note: If we are terminated, this could be called in the middle of + * another SDL video routine -- notably UpdateRects. + */ +void WSCONS_VideoQuit(_THIS) +{ + int mode = WSDISPLAYIO_MODE_EMUL; + + if (private->shadowmem != NULL) { + free(private->shadowmem); + private->shadowmem = NULL; + } + private->fbstart = NULL; + if (this->screen != NULL) { + this->screen->pixels = NULL; + } + + if (private->SDL_modelist[0] != NULL) { + free(private->SDL_modelist[0]); + private->SDL_modelist[0] = NULL; + } + + if (ioctl(private->fd, WSDISPLAYIO_SMODE, &mode) == -1) { + WSCONS_ReportError("ioctl SMODE"); + } + + WSCONS_ReleaseKeyboard(this); + + if (private->fd != -1) { + close(private->fd); + private->fd = -1; + } +} diff --git a/src/video/wscons/SDL_wsconsvideo.h b/src/video/wscons/SDL_wsconsvideo.h new file mode 100644 index 000000000..366dd16e6 --- /dev/null +++ b/src/video/wscons/SDL_wsconsvideo.h @@ -0,0 +1,79 @@ +/* + SDL - Simple DirectMedia Layer + Copyright (C) 1997-2004 Sam Lantinga + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with this library; if not, write to the Free + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + Sam Lantinga + slouken@libsdl.org +*/ + +#ifdef SAVE_RCSID +static char rcsid = + "@(#) $Id$"; +#endif + +#ifndef _SDL_wsconsvideo_h +#define _SDL_wsconsvideo_h + +#include +#include +#include +#include "SDL_mouse.h" +#include "SDL_sysvideo.h" +#include "SDL_mutex.h" + +void WSCONS_ReportError(char *fmt, ...); + +/* Hidden "this" pointer for the video functions */ +#define _THIS SDL_VideoDevice *this +#define private (this->hidden) + +/* Private display data */ + +typedef void WSCONS_bitBlit(Uint8 *src_pos, + int srcRightDelta, // pixels, not bytes + int srcDownDelta, // pixels, not bytes + Uint8 *dst_pos, + int dst_linebytes, + int width, + int height); + +struct SDL_PrivateVideoData { + int fd; /* file descriptor of open device */ + struct wsdisplay_fbinfo info; /* frame buffer characteristics */ + int physlinebytes; /* number of bytes per row */ + int redMask, greenMask, blueMask; + + Uint8 *fbstart; /* These refer to the surface used, */ + int fblinebytes; /* physical frame buffer or shadow. */ + + size_t fbmem_len; + Uint8 *physmem; + Uint8 *shadowmem; + int rotate; + int shadowFB; /* Tells whether a shadow is being used. */ + + WSCONS_bitBlit *blitFunc; + + SDL_Rect *SDL_modelist[2]; + + unsigned int kbdType; + int did_save_tty; + struct termios saved_tty; +}; + + +#endif /* _SDL_wsconsvideo_h */