| /* |
| SDL - Simple DirectMedia Layer |
| Copyright (C) 1997-2012 Sam Lantinga |
| |
| This library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 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 |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with this library; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| |
| Sam Lantinga |
| slouken@libsdl.org |
| */ |
| #include "SDL_config.h" |
| |
| /* |
| * Xbios SDL video driver |
| * |
| * Patrice Mandin |
| */ |
| |
| #include <sys/stat.h> |
| #include <unistd.h> |
| |
| /* Mint includes */ |
| #include <mint/cookie.h> |
| #include <mint/osbind.h> |
| #include <mint/falcon.h> |
| |
| #include "SDL_video.h" |
| #include "SDL_mouse.h" |
| #include "../SDL_sysvideo.h" |
| #include "../SDL_pixels_c.h" |
| #include "../../events/SDL_events_c.h" |
| |
| #include "../ataricommon/SDL_ataric2p_s.h" |
| #include "../ataricommon/SDL_atarievents_c.h" |
| #include "../ataricommon/SDL_atarimxalloc_c.h" |
| #include "../ataricommon/SDL_atarigl_c.h" |
| #include "SDL_xbios.h" |
| #include "SDL_xbios_blowup.h" |
| #include "SDL_xbios_centscreen.h" |
| #include "SDL_xbios_sb3.h" |
| #include "SDL_xbios_tveille.h" |
| #include "SDL_xbios_milan.h" |
| |
| #define XBIOS_VID_DRIVER_NAME "xbios" |
| |
| #ifndef C_fVDI |
| #define C_fVDI 0x66564449L |
| #endif |
| |
| /* Debug print info */ |
| #if 0 |
| #define DEBUG_PRINT(what) \ |
| { \ |
| printf what; \ |
| } |
| #define DEBUG_VIDEO_XBIOS 1 |
| #else |
| #define DEBUG_PRINT(what) |
| #undef DEBUG_VIDEO_XBIOS |
| #endif |
| |
| /* Initialization/Query functions */ |
| static int XBIOS_VideoInit(_THIS, SDL_PixelFormat *vformat); |
| static SDL_Rect **XBIOS_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags); |
| static SDL_Surface *XBIOS_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); |
| static int XBIOS_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors); |
| static void XBIOS_VideoQuit(_THIS); |
| |
| /* Hardware surface functions */ |
| static int XBIOS_AllocHWSurface(_THIS, SDL_Surface *surface); |
| static int XBIOS_LockHWSurface(_THIS, SDL_Surface *surface); |
| static int XBIOS_FlipHWSurface(_THIS, SDL_Surface *surface); |
| static void XBIOS_UnlockHWSurface(_THIS, SDL_Surface *surface); |
| static void XBIOS_FreeHWSurface(_THIS, SDL_Surface *surface); |
| static void XBIOS_UpdateRects(_THIS, int numrects, SDL_Rect *rects); |
| |
| #if SDL_VIDEO_OPENGL |
| /* OpenGL functions */ |
| static void XBIOS_GL_SwapBuffers(_THIS); |
| #endif |
| |
| /* To setup palette */ |
| |
| static unsigned short TT_palette[256]; |
| static unsigned long F30_palette[256]; |
| |
| /* Default list of video modes */ |
| |
| static const xbiosmode_t stmodes[1]={ |
| {ST_LOW>>8,320,200,4, XBIOSMODE_C2P} |
| }; |
| |
| static const xbiosmode_t ttmodes[2]={ |
| {TT_LOW,320,480,8, XBIOSMODE_C2P}, |
| {TT_LOW,320,240,8, XBIOSMODE_C2P|XBIOSMODE_DOUBLELINE} |
| }; |
| |
| static const xbiosmode_t falconrgbmodes[16]={ |
| {BPS16|COL80|OVERSCAN|VERTFLAG,768,480,16,0}, |
| {BPS16|COL80|OVERSCAN,768,240,16,0}, |
| {BPS16|COL80|VERTFLAG,640,400,16,0}, |
| {BPS16|COL80,640,200,16,0}, |
| {BPS16|OVERSCAN|VERTFLAG,384,480,16,0}, |
| {BPS16|OVERSCAN,384,240,16,0}, |
| {BPS16|VERTFLAG,320,400,16,0}, |
| {BPS16,320,200,16,0}, |
| {BPS8|COL80|OVERSCAN|VERTFLAG,768,480,8,XBIOSMODE_C2P}, |
| {BPS8|COL80|OVERSCAN,768,240,8,XBIOSMODE_C2P}, |
| {BPS8|COL80|VERTFLAG,640,400,8,XBIOSMODE_C2P}, |
| {BPS8|COL80,640,200,8,XBIOSMODE_C2P}, |
| {BPS8|OVERSCAN|VERTFLAG,384,480,8,XBIOSMODE_C2P}, |
| {BPS8|OVERSCAN,384,240,8,XBIOSMODE_C2P}, |
| {BPS8|VERTFLAG,320,400,8,XBIOSMODE_C2P}, |
| {BPS8,320,200,8,XBIOSMODE_C2P} |
| }; |
| |
| static const xbiosmode_t falconvgamodes[6]={ |
| {BPS16,320,480,16,0}, |
| {BPS16|VERTFLAG,320,240,16,0}, |
| {BPS8|COL80,640,480,8,XBIOSMODE_C2P}, |
| {BPS8|COL80|VERTFLAG,640,240,8,XBIOSMODE_C2P}, |
| {BPS8,320,480,8,XBIOSMODE_C2P}, |
| {BPS8|VERTFLAG,320,240,8,XBIOSMODE_C2P} |
| }; |
| |
| /* Xbios driver bootstrap functions */ |
| |
| static int XBIOS_Available(void) |
| { |
| long cookie_vdo, /*cookie_mil,*/ cookie_hade, cookie_scpn; |
| long cookie_fvdi; |
| const char *envr = SDL_getenv("SDL_VIDEODRIVER"); |
| |
| /* Milan/Hades Atari clones do not have an Atari video chip */ |
| if ( /*(Getcookie(C__MIL, &cookie_mil) == C_FOUND) ||*/ |
| (Getcookie(C_hade, &cookie_hade) == C_FOUND) ) { |
| return 0; |
| } |
| |
| /* fVDI means graphic card, so no Xbios with it */ |
| if (Getcookie(C_fVDI, &cookie_fvdi) == C_FOUND) { |
| if (!envr) { |
| return 0; |
| } |
| if (SDL_strcmp(envr, XBIOS_VID_DRIVER_NAME)!=0) { |
| return 0; |
| } |
| /* Except if we force Xbios usage, through env var */ |
| } |
| |
| /* Cookie _VDO present ? if not, assume ST machine */ |
| if (Getcookie(C__VDO, &cookie_vdo) != C_FOUND) { |
| cookie_vdo = VDO_ST << 16; |
| } |
| |
| /* Test if we have a monochrome monitor plugged in */ |
| switch( cookie_vdo >>16) { |
| case VDO_ST: |
| case VDO_STE: |
| if ( Getrez() == (ST_HIGH>>8) ) |
| return 0; |
| break; |
| case VDO_TT: |
| if ( (EgetShift() & ES_MODE) == TT_HIGH) |
| return 0; |
| break; |
| case VDO_F30: |
| if ( VgetMonitor() == MONITOR_MONO) |
| return 0; |
| if (Getcookie(C_SCPN, &cookie_scpn) == C_FOUND) { |
| if (!SDL_XBIOS_SB3Usable((scpn_cookie_t *)cookie_scpn)) { |
| return 0; |
| } |
| } |
| break; |
| case VDO_MILAN: |
| break; |
| default: |
| return 0; |
| } |
| |
| return 1; |
| } |
| |
| static void XBIOS_DeleteDevice(SDL_VideoDevice *device) |
| { |
| SDL_free(device->hidden); |
| SDL_free(device); |
| } |
| |
| static SDL_VideoDevice *XBIOS_CreateDevice(int devindex) |
| { |
| SDL_VideoDevice *device; |
| |
| /* Initialize all variables that we clean on shutdown */ |
| device = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice)); |
| if ( device ) { |
| SDL_memset(device, 0, (sizeof *device)); |
| device->hidden = (struct SDL_PrivateVideoData *) |
| SDL_malloc((sizeof *device->hidden)); |
| device->gl_data = (struct SDL_PrivateGLData *) |
| SDL_malloc((sizeof *device->gl_data)); |
| } |
| if ( (device == NULL) || (device->hidden == NULL) ) { |
| SDL_OutOfMemory(); |
| if ( device ) { |
| SDL_free(device); |
| } |
| return(0); |
| } |
| SDL_memset(device->hidden, 0, (sizeof *device->hidden)); |
| SDL_memset(device->gl_data, 0, sizeof(*device->gl_data)); |
| |
| /* Video functions */ |
| device->VideoInit = XBIOS_VideoInit; |
| device->ListModes = XBIOS_ListModes; |
| device->SetVideoMode = XBIOS_SetVideoMode; |
| device->SetColors = XBIOS_SetColors; |
| device->UpdateRects = NULL; |
| device->VideoQuit = XBIOS_VideoQuit; |
| device->AllocHWSurface = XBIOS_AllocHWSurface; |
| device->LockHWSurface = XBIOS_LockHWSurface; |
| device->UnlockHWSurface = XBIOS_UnlockHWSurface; |
| device->FlipHWSurface = XBIOS_FlipHWSurface; |
| device->FreeHWSurface = XBIOS_FreeHWSurface; |
| |
| #if SDL_VIDEO_OPENGL |
| /* OpenGL functions */ |
| device->GL_LoadLibrary = SDL_AtariGL_LoadLibrary; |
| device->GL_GetProcAddress = SDL_AtariGL_GetProcAddress; |
| device->GL_GetAttribute = SDL_AtariGL_GetAttribute; |
| device->GL_MakeCurrent = SDL_AtariGL_MakeCurrent; |
| device->GL_SwapBuffers = XBIOS_GL_SwapBuffers; |
| #endif |
| |
| /* Events */ |
| device->InitOSKeymap = Atari_InitOSKeymap; |
| device->PumpEvents = Atari_PumpEvents; |
| |
| device->free = XBIOS_DeleteDevice; |
| |
| return device; |
| } |
| |
| VideoBootStrap XBIOS_bootstrap = { |
| XBIOS_VID_DRIVER_NAME, "Atari Xbios driver", |
| XBIOS_Available, XBIOS_CreateDevice |
| }; |
| |
| void SDL_XBIOS_AddMode(_THIS, int actually_add, const xbiosmode_t *modeinfo) |
| { |
| int i = 0; |
| |
| switch(modeinfo->depth) { |
| case 15: |
| case 16: |
| i = 1; |
| break; |
| case 24: |
| i = 2; |
| break; |
| case 32: |
| i = 3; |
| break; |
| } |
| |
| if ( actually_add ) { |
| SDL_Rect saved_rect[2]; |
| xbiosmode_t saved_mode[2]; |
| int b, j; |
| |
| /* Add the mode, sorted largest to smallest */ |
| b = 0; |
| j = 0; |
| while ( (SDL_modelist[i][j]->w > modeinfo->width) || |
| (SDL_modelist[i][j]->h > modeinfo->height) ) { |
| ++j; |
| } |
| /* Skip modes that are already in our list */ |
| if ( (SDL_modelist[i][j]->w == modeinfo->width) && |
| (SDL_modelist[i][j]->h == modeinfo->height) ) { |
| return; |
| } |
| /* Insert the new mode */ |
| saved_rect[b] = *SDL_modelist[i][j]; |
| SDL_memcpy(&saved_mode[b], SDL_xbiosmode[i][j], sizeof(xbiosmode_t)); |
| SDL_modelist[i][j]->w = modeinfo->width; |
| SDL_modelist[i][j]->h = modeinfo->height; |
| SDL_memcpy(SDL_xbiosmode[i][j], modeinfo, sizeof(xbiosmode_t)); |
| /* Everybody scoot down! */ |
| if ( saved_rect[b].w && saved_rect[b].h ) { |
| for ( ++j; SDL_modelist[i][j]->w; ++j ) { |
| saved_rect[!b] = *SDL_modelist[i][j]; |
| memcpy(&saved_mode[!b], SDL_xbiosmode[i][j], sizeof(xbiosmode_t)); |
| *SDL_modelist[i][j] = saved_rect[b]; |
| SDL_memcpy(SDL_xbiosmode[i][j], &saved_mode[b], sizeof(xbiosmode_t)); |
| b = !b; |
| } |
| *SDL_modelist[i][j] = saved_rect[b]; |
| SDL_memcpy(SDL_xbiosmode[i][j], &saved_mode[b], sizeof(xbiosmode_t)); |
| } |
| } else { |
| ++SDL_nummodes[i]; |
| } |
| } |
| |
| static void XBIOS_ListSTModes(_THIS, int actually_add) |
| { |
| SDL_XBIOS_AddMode(this, actually_add, &stmodes[0]); |
| } |
| |
| static void XBIOS_ListTTModes(_THIS, int actually_add) |
| { |
| int i; |
| |
| for (i=0; i<2; i++) { |
| SDL_XBIOS_AddMode(this, actually_add, &ttmodes[i]); |
| } |
| } |
| |
| static void XBIOS_ListFalconRgbModes(_THIS, int actually_add) |
| { |
| int i; |
| |
| for (i=0; i<16; i++) { |
| xbiosmode_t modeinfo; |
| |
| SDL_memcpy(&modeinfo, &falconrgbmodes[i], sizeof(xbiosmode_t)); |
| modeinfo.number &= ~(VGA|PAL); |
| modeinfo.number |= XBIOS_oldvmode & (VGA|PAL); |
| |
| SDL_XBIOS_AddMode(this, actually_add, &modeinfo); |
| } |
| } |
| |
| static void XBIOS_ListFalconVgaModes(_THIS, int actually_add) |
| { |
| int i; |
| |
| for (i=0; i<6; i++) { |
| xbiosmode_t modeinfo; |
| |
| SDL_memcpy(&modeinfo, &falconvgamodes[i], sizeof(xbiosmode_t)); |
| modeinfo.number &= ~(VGA|PAL); |
| modeinfo.number |= XBIOS_oldvmode & (VGA|PAL); |
| |
| SDL_XBIOS_AddMode(this, actually_add, &modeinfo); |
| } |
| } |
| |
| static int XBIOS_VideoInit(_THIS, SDL_PixelFormat *vformat) |
| { |
| int i; |
| long cookie_blow, cookie_scpn, cookie_cnts; |
| |
| /* Initialize all variables that we clean on shutdown */ |
| for ( i=0; i<NUM_MODELISTS; ++i ) { |
| SDL_nummodes[i] = 0; |
| SDL_modelist[i] = NULL; |
| SDL_xbiosmode[i] = NULL; |
| } |
| |
| /* Cookie _VDO present ? if not, assume ST machine */ |
| if (Getcookie(C__VDO, &XBIOS_cvdo) != C_FOUND) { |
| XBIOS_cvdo = VDO_ST << 16; |
| } |
| |
| /* Allocate memory for old palette */ |
| XBIOS_oldpalette = (void *)SDL_malloc(256*sizeof(long)); |
| if ( !XBIOS_oldpalette ) { |
| SDL_SetError("Unable to allocate memory for old palette\n"); |
| return(-1); |
| } |
| |
| /* Initialize video mode list */ |
| /* and save current screen status (palette, screen address, video mode) */ |
| XBIOS_centscreen = SDL_FALSE; |
| XBIOS_oldvbase = Physbase(); |
| |
| /* Determine the current screen size */ |
| this->info.current_w = 0; |
| this->info.current_h = 0; |
| |
| /* Determine the screen depth (use default 8-bit depth) */ |
| vformat->BitsPerPixel = 8; |
| |
| /* First allocate room for needed video modes */ |
| switch (XBIOS_cvdo >>16) { |
| case VDO_ST: |
| case VDO_STE: |
| { |
| short *oldpalette; |
| |
| XBIOS_oldvmode=Getrez(); |
| switch(XBIOS_oldvmode << 8) { |
| case ST_LOW: |
| XBIOS_oldnumcol=16; |
| break; |
| case ST_MED: |
| XBIOS_oldnumcol=4; |
| break; |
| case ST_HIGH: |
| XBIOS_oldnumcol=2; |
| break; |
| } |
| |
| oldpalette= (short *) XBIOS_oldpalette; |
| for (i=0;i<XBIOS_oldnumcol;i++) { |
| *oldpalette++=Setcolor(i,-1); |
| } |
| |
| XBIOS_ListSTModes(this, 0); |
| } |
| break; |
| case VDO_TT: |
| XBIOS_oldvmode=EgetShift(); |
| |
| switch(XBIOS_oldvmode & ES_MODE) { |
| case TT_LOW: |
| XBIOS_oldnumcol=256; |
| break; |
| case ST_LOW: |
| case TT_MED: |
| XBIOS_oldnumcol=16; |
| break; |
| case ST_MED: |
| XBIOS_oldnumcol=4; |
| break; |
| case ST_HIGH: |
| case TT_HIGH: |
| XBIOS_oldnumcol=2; |
| break; |
| } |
| if (XBIOS_oldnumcol) { |
| EgetPalette(0, XBIOS_oldnumcol, XBIOS_oldpalette); |
| } |
| |
| XBIOS_ListTTModes(this, 0); |
| break; |
| case VDO_F30: |
| XBIOS_oldvmode=VsetMode(-1); |
| |
| XBIOS_oldnumcol= 1<< (1 << (XBIOS_oldvmode & NUMCOLS)); |
| if (XBIOS_oldnumcol > 256) { |
| XBIOS_oldnumcol = 0; |
| } |
| if (XBIOS_oldnumcol) { |
| VgetRGB(0, XBIOS_oldnumcol, XBIOS_oldpalette); |
| } |
| |
| vformat->BitsPerPixel = 16; |
| |
| /* ScreenBlaster 3 ? */ |
| if (Getcookie(C_SCPN, &cookie_scpn) == C_FOUND) { |
| SDL_XBIOS_ListSB3Modes(this, 0, (scpn_cookie_t *)cookie_scpn); |
| } else |
| /* Centscreen ? */ |
| if (Getcookie(C_CNTS, &cookie_cnts) == C_FOUND) { |
| XBIOS_oldvmode = SDL_XBIOS_ListCentscreenModes(this, 0); |
| XBIOS_centscreen = SDL_TRUE; |
| } else |
| /* Standard, with or without Blowup */ |
| { |
| switch (VgetMonitor()) |
| { |
| case MONITOR_RGB: |
| case MONITOR_TV: |
| XBIOS_ListFalconRgbModes(this, 0); |
| break; |
| case MONITOR_VGA: |
| XBIOS_ListFalconVgaModes(this, 0); |
| break; |
| } |
| |
| if (Getcookie(C_BLOW, &cookie_blow) == C_FOUND) { |
| SDL_XBIOS_ListBlowupModes(this, 0, (blow_cookie_t *)cookie_blow); |
| } |
| } |
| break; |
| case VDO_MILAN: |
| { |
| SCREENINFO si; |
| |
| /* Read infos about current mode */ |
| VsetScreen(-1, &XBIOS_oldvmode, MI_MAGIC, CMD_GETMODE); |
| |
| si.size = sizeof(SCREENINFO); |
| si.devID = XBIOS_oldvmode; |
| si.scrFlags = 0; |
| VsetScreen(-1, &si, MI_MAGIC, CMD_GETINFO); |
| |
| this->info.current_w = si.scrWidth; |
| this->info.current_h = si.scrHeight; |
| |
| XBIOS_oldnumcol = 0; |
| if (si.scrFlags & SCRINFO_OK) { |
| if (si.scrPlanes <= 8) { |
| XBIOS_oldnumcol = 1<<si.scrPlanes; |
| } |
| } |
| if (XBIOS_oldnumcol) { |
| VgetRGB(0, XBIOS_oldnumcol, XBIOS_oldpalette); |
| } |
| |
| SDL_XBIOS_ListMilanModes(this, 0); |
| } |
| break; |
| } |
| |
| for ( i=0; i<NUM_MODELISTS; ++i ) { |
| int j; |
| |
| SDL_xbiosmode[i] = (xbiosmode_t **) |
| SDL_malloc((SDL_nummodes[i]+1)*sizeof(xbiosmode_t *)); |
| if ( SDL_xbiosmode[i] == NULL ) { |
| SDL_OutOfMemory(); |
| return(-1); |
| } |
| for ( j=0; j<SDL_nummodes[i]; ++j ) { |
| SDL_xbiosmode[i][j]=(xbiosmode_t *)SDL_malloc(sizeof(xbiosmode_t)); |
| if ( SDL_xbiosmode[i][j] == NULL ) { |
| SDL_OutOfMemory(); |
| return(-1); |
| } |
| SDL_memset(SDL_xbiosmode[i][j], 0, sizeof(xbiosmode_t)); |
| } |
| SDL_xbiosmode[i][j] = NULL; |
| |
| SDL_modelist[i] = (SDL_Rect **) |
| SDL_malloc((SDL_nummodes[i]+1)*sizeof(SDL_Rect *)); |
| if ( SDL_modelist[i] == NULL ) { |
| SDL_OutOfMemory(); |
| return(-1); |
| } |
| for ( j=0; j<SDL_nummodes[i]; ++j ) { |
| SDL_modelist[i][j]=(SDL_Rect *)SDL_malloc(sizeof(SDL_Rect)); |
| if ( SDL_modelist[i][j] == NULL ) { |
| SDL_OutOfMemory(); |
| return(-1); |
| } |
| SDL_memset(SDL_modelist[i][j], 0, sizeof(SDL_Rect)); |
| } |
| SDL_modelist[i][j] = NULL; |
| } |
| |
| /* Now fill the mode list */ |
| switch (XBIOS_cvdo >>16) { |
| case VDO_ST: |
| case VDO_STE: |
| XBIOS_ListSTModes(this, 1); |
| break; |
| case VDO_TT: |
| XBIOS_ListTTModes(this, 1); |
| break; |
| case VDO_F30: |
| /* ScreenBlaster 3 ? */ |
| if (Getcookie(C_SCPN, &cookie_scpn) == C_FOUND) { |
| SDL_XBIOS_ListSB3Modes(this, 1, (scpn_cookie_t *)cookie_scpn); |
| } else |
| /* Centscreen ? */ |
| if (Getcookie(C_CNTS, &cookie_cnts) == C_FOUND) { |
| XBIOS_oldvmode = SDL_XBIOS_ListCentscreenModes(this, 1); |
| XBIOS_centscreen = SDL_TRUE; |
| } else |
| /* Standard, with or without Blowup */ |
| { |
| switch (VgetMonitor()) |
| { |
| case MONITOR_RGB: |
| case MONITOR_TV: |
| XBIOS_ListFalconRgbModes(this, 1); |
| break; |
| case MONITOR_VGA: |
| XBIOS_ListFalconVgaModes(this, 1); |
| break; |
| } |
| |
| if (Getcookie(C_BLOW, &cookie_blow) == C_FOUND) { |
| SDL_XBIOS_ListBlowupModes(this, 1, (blow_cookie_t *)cookie_blow); |
| } |
| } |
| break; |
| case VDO_MILAN: |
| SDL_XBIOS_ListMilanModes(this, 1); |
| break; |
| } |
| |
| XBIOS_screens[0]=NULL; |
| XBIOS_screens[1]=NULL; |
| XBIOS_shadowscreen=NULL; |
| |
| /* Update hardware info */ |
| this->info.hw_available = 1; |
| this->info.video_mem = (Uint32) Atari_SysMalloc(-1L, MX_STRAM); |
| |
| /* Init chunky to planar routine */ |
| SDL_Atari_C2pConvert = SDL_Atari_C2pConvert8; |
| |
| #if SDL_VIDEO_OPENGL |
| SDL_AtariGL_InitPointers(this); |
| #endif |
| |
| /* Disable screensavers */ |
| if (SDL_XBIOS_TveillePresent(this)) { |
| SDL_XBIOS_TveilleDisable(this); |
| } |
| |
| /* We're done! */ |
| return(0); |
| } |
| |
| static SDL_Rect **XBIOS_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) |
| { |
| return(SDL_modelist[((format->BitsPerPixel+7)/8)-1]); |
| } |
| |
| static void XBIOS_FreeBuffers(_THIS) |
| { |
| int i; |
| |
| for (i=0;i<2;i++) { |
| if (XBIOS_screensmem[i]!=NULL) { |
| if ((XBIOS_cvdo>>16) == VDO_MILAN) { |
| if (i==1) { |
| VsetScreen(-1, -1, MI_MAGIC, CMD_FREEPAGE); |
| } |
| } else { |
| Mfree(XBIOS_screensmem[i]); |
| } |
| XBIOS_screensmem[i]=NULL; |
| } |
| } |
| |
| if (XBIOS_shadowscreen!=NULL) { |
| Mfree(XBIOS_shadowscreen); |
| XBIOS_shadowscreen=NULL; |
| } |
| } |
| |
| static SDL_Surface *XBIOS_SetVideoMode(_THIS, SDL_Surface *current, |
| int width, int height, int bpp, Uint32 flags) |
| { |
| int mode, new_depth; |
| int i, num_buffers; |
| xbiosmode_t *new_video_mode; |
| Uint32 new_screen_size; |
| Uint32 modeflags; |
| |
| /* Free current buffers */ |
| XBIOS_FreeBuffers(this); |
| |
| /* Try to set the requested linear video mode */ |
| bpp = (bpp+7)/8-1; |
| for ( mode=0; SDL_modelist[bpp][mode]; ++mode ) { |
| if ( (SDL_modelist[bpp][mode]->w == width) && |
| (SDL_modelist[bpp][mode]->h == height) ) { |
| break; |
| } |
| } |
| if ( SDL_modelist[bpp][mode] == NULL ) { |
| SDL_SetError("Couldn't find requested mode in list"); |
| return(NULL); |
| } |
| new_video_mode = SDL_xbiosmode[bpp][mode]; |
| |
| modeflags = SDL_FULLSCREEN | SDL_PREALLOC; |
| |
| /* Allocate needed buffers: simple/double buffer and shadow surface */ |
| new_depth = new_video_mode->depth; |
| if (new_depth == 4) { |
| SDL_Atari_C2pConvert = SDL_Atari_C2pConvert4; |
| new_depth=8; |
| modeflags |= SDL_SWSURFACE|SDL_HWPALETTE; |
| } else if (new_depth == 8) { |
| SDL_Atari_C2pConvert = SDL_Atari_C2pConvert8; |
| modeflags |= SDL_SWSURFACE|SDL_HWPALETTE; |
| } else { |
| modeflags |= SDL_HWSURFACE; |
| } |
| |
| new_screen_size = width * height * ((new_depth)>>3); |
| new_screen_size += 256; /* To align on a 256 byte adress */ |
| |
| if (new_video_mode->flags & XBIOSMODE_C2P) { |
| XBIOS_shadowscreen = Atari_SysMalloc(new_screen_size, MX_PREFTTRAM); |
| |
| if (XBIOS_shadowscreen == NULL) { |
| SDL_SetError("Can not allocate %d KB for shadow buffer", new_screen_size>>10); |
| return (NULL); |
| } |
| SDL_memset(XBIOS_shadowscreen, 0, new_screen_size); |
| } |
| |
| /* Output buffer needs to be twice in size for the software double-line mode */ |
| if (new_video_mode->flags & XBIOSMODE_DOUBLELINE) { |
| new_screen_size <<= 1; |
| } |
| |
| /* Double buffer ? */ |
| num_buffers = 1; |
| |
| #if SDL_VIDEO_OPENGL |
| if (flags & SDL_OPENGL) { |
| if (this->gl_config.double_buffer) { |
| flags |= SDL_DOUBLEBUF; |
| } |
| } |
| #endif |
| if ((flags & SDL_DOUBLEBUF) && ((XBIOS_cvdo>>16) != VDO_MILAN)) { |
| num_buffers = 2; |
| modeflags |= SDL_DOUBLEBUF; |
| } |
| |
| /* Allocate buffers */ |
| for (i=0; i<num_buffers; i++) { |
| if ((XBIOS_cvdo>>16) == VDO_MILAN) { |
| if (i==0) { |
| XBIOS_screensmem[i] = XBIOS_oldvbase; |
| } else { |
| VsetScreen(-1, &XBIOS_screensmem[i], MI_MAGIC, CMD_ALLOCPAGE); |
| } |
| } else { |
| XBIOS_screensmem[i] = Atari_SysMalloc(new_screen_size, MX_STRAM); |
| } |
| |
| if (XBIOS_screensmem[i]==NULL) { |
| XBIOS_FreeBuffers(this); |
| SDL_SetError("Can not allocate %d KB for buffer %d", new_screen_size>>10, i); |
| return (NULL); |
| } |
| SDL_memset(XBIOS_screensmem[i], 0, new_screen_size); |
| |
| XBIOS_screens[i]=(void *) (( (long) XBIOS_screensmem[i]+256) & 0xFFFFFF00UL); |
| } |
| |
| /* Allocate the new pixel format for the screen */ |
| if ( ! SDL_ReallocFormat(current, new_depth, 0, 0, 0, 0) ) { |
| XBIOS_FreeBuffers(this); |
| SDL_SetError("Couldn't allocate new pixel format for requested mode"); |
| return(NULL); |
| } |
| |
| XBIOS_current = new_video_mode; |
| current->w = width; |
| current->h = height; |
| current->pitch = (width * new_depth)>>3; |
| |
| /* this is for C2P conversion */ |
| XBIOS_pitch = (new_video_mode->width * new_video_mode->depth)>>3; |
| |
| if (new_video_mode->flags & XBIOSMODE_C2P) |
| current->pixels = XBIOS_shadowscreen; |
| else |
| current->pixels = XBIOS_screens[0]; |
| |
| XBIOS_fbnum = 0; |
| |
| #if SDL_VIDEO_OPENGL |
| if (flags & SDL_OPENGL) { |
| if (!SDL_AtariGL_Init(this, current)) { |
| XBIOS_FreeBuffers(this); |
| SDL_SetError("Can not create OpenGL context"); |
| return NULL; |
| } |
| |
| modeflags |= SDL_OPENGL; |
| } |
| #endif |
| |
| current->flags = modeflags; |
| |
| #ifndef DEBUG_VIDEO_XBIOS |
| /* Now set the video mode */ |
| if ((XBIOS_cvdo>>16) == VDO_MILAN) { |
| VsetScreen(-1, XBIOS_screens[0], MI_MAGIC, CMD_SETADR); |
| } else { |
| Setscreen(-1,XBIOS_screens[0],-1); |
| } |
| |
| switch(XBIOS_cvdo >> 16) { |
| case VDO_ST: |
| Setscreen(-1,-1,new_video_mode->number); |
| |
| /* Reset palette */ |
| for (i=0;i<16;i++) { |
| TT_palette[i]= ((i>>1)<<8) | (((i*8)/17)<<4) | (i>>1); |
| } |
| Setpalette(TT_palette); |
| break; |
| case VDO_STE: |
| Setscreen(-1,-1,new_video_mode->number); |
| |
| /* Reset palette */ |
| for (i=0;i<16;i++) |
| { |
| int c; |
| |
| c=((i&1)<<3)|((i>>1)&7); |
| TT_palette[i]=(c<<8)|(c<<4)|c; |
| } |
| Setpalette(TT_palette); |
| break; |
| case VDO_TT: |
| EsetShift(new_video_mode->number); |
| break; |
| case VDO_F30: |
| if (XBIOS_centscreen) { |
| SDL_XBIOS_CentscreenSetmode(this, width, height, new_depth); |
| } else { |
| VsetMode(new_video_mode->number); |
| } |
| |
| /* Set hardware palette to black in True Colour */ |
| if (new_depth > 8) { |
| SDL_memset(F30_palette, 0, sizeof(F30_palette)); |
| VsetRGB(0,256,F30_palette); |
| } |
| break; |
| case VDO_MILAN: |
| VsetScreen(-1, new_video_mode->number, MI_MAGIC, CMD_SETMODE); |
| |
| /* Set hardware palette to black in True Colour */ |
| if (new_depth > 8) { |
| SDL_memset(F30_palette, 0, sizeof(F30_palette)); |
| VsetRGB(0,256,F30_palette); |
| } |
| break; |
| } |
| |
| Vsync(); |
| #endif |
| |
| this->UpdateRects = XBIOS_UpdateRects; |
| |
| return (current); |
| } |
| |
| /* We don't actually allow hardware surfaces other than the main one */ |
| static int XBIOS_AllocHWSurface(_THIS, SDL_Surface *surface) |
| { |
| return(-1); |
| } |
| |
| static void XBIOS_FreeHWSurface(_THIS, SDL_Surface *surface) |
| { |
| return; |
| } |
| |
| static int XBIOS_LockHWSurface(_THIS, SDL_Surface *surface) |
| { |
| return(0); |
| } |
| |
| static void XBIOS_UnlockHWSurface(_THIS, SDL_Surface *surface) |
| { |
| return; |
| } |
| |
| static void XBIOS_UpdateRects(_THIS, int numrects, SDL_Rect *rects) |
| { |
| SDL_Surface *surface; |
| |
| surface = this->screen; |
| |
| if (XBIOS_current->flags & XBIOSMODE_C2P) { |
| int i; |
| int doubleline = (XBIOS_current->flags & XBIOSMODE_DOUBLELINE ? 1 : 0); |
| |
| for (i=0;i<numrects;i++) { |
| void *source,*destination; |
| int x1,x2; |
| |
| x1 = rects[i].x & ~15; |
| x2 = rects[i].x+rects[i].w; |
| if (x2 & 15) { |
| x2 = (x2 | 15) +1; |
| } |
| |
| source = surface->pixels; |
| source += surface->pitch * rects[i].y; |
| source += x1; |
| |
| destination = XBIOS_screens[XBIOS_fbnum]; |
| destination += XBIOS_pitch * rects[i].y; |
| destination += x1; |
| |
| /* Convert chunky to planar screen */ |
| SDL_Atari_C2pConvert( |
| source, |
| destination, |
| x2-x1, |
| rects[i].h, |
| doubleline, |
| surface->pitch, |
| XBIOS_pitch |
| ); |
| } |
| } |
| |
| #ifndef DEBUG_VIDEO_XBIOS |
| if ((XBIOS_cvdo>>16) == VDO_MILAN) { |
| VsetScreen(-1, XBIOS_screens[XBIOS_fbnum], MI_MAGIC, CMD_SETADR); |
| } else { |
| Setscreen(-1,XBIOS_screens[XBIOS_fbnum],-1); |
| } |
| |
| Vsync(); |
| #endif |
| |
| if ((surface->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF) { |
| XBIOS_fbnum ^= 1; |
| if ((XBIOS_current->flags & XBIOSMODE_C2P) == 0) { |
| surface->pixels=XBIOS_screens[XBIOS_fbnum]; |
| } |
| } |
| } |
| |
| static int XBIOS_FlipHWSurface(_THIS, SDL_Surface *surface) |
| { |
| if (XBIOS_current->flags & XBIOSMODE_C2P) { |
| void *destscr; |
| int destx; |
| int doubleline = (XBIOS_current->flags & XBIOSMODE_DOUBLELINE ? 1 : 0); |
| |
| /* Center on destination screen */ |
| destscr = XBIOS_screens[XBIOS_fbnum]; |
| destscr += XBIOS_pitch * ((XBIOS_current->height - surface->h) >> 1); |
| destx = (XBIOS_current->width - surface->w) >> 1; |
| destx &= ~15; |
| destscr += destx; |
| |
| /* Convert chunky to planar screen */ |
| SDL_Atari_C2pConvert( |
| surface->pixels, |
| destscr, |
| surface->w, |
| surface->h, |
| doubleline, |
| surface->pitch, |
| XBIOS_pitch |
| ); |
| } |
| |
| #ifndef DEBUG_VIDEO_XBIOS |
| if ((XBIOS_cvdo>>16) == VDO_MILAN) { |
| VsetScreen(-1, XBIOS_screens[XBIOS_fbnum], MI_MAGIC, CMD_SETADR); |
| } else { |
| Setscreen(-1,XBIOS_screens[XBIOS_fbnum],-1); |
| } |
| |
| Vsync(); |
| #endif |
| |
| if ((surface->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF) { |
| XBIOS_fbnum ^= 1; |
| if ((XBIOS_current->flags & XBIOSMODE_C2P) == 0) { |
| surface->pixels=XBIOS_screens[XBIOS_fbnum]; |
| } |
| } |
| |
| return(0); |
| } |
| |
| static int XBIOS_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors) |
| { |
| #ifndef DEBUG_VIDEO_XBIOS |
| int i; |
| int r,v,b; |
| |
| switch( XBIOS_cvdo >> 16) { |
| case VDO_ST: |
| case VDO_STE: |
| for (i=0;i<ncolors;i++) |
| { |
| r = colors[i].r; |
| v = colors[i].g; |
| b = colors[i].b; |
| |
| TT_palette[firstcolor+i]=((r*30)+(v*59)+(b*11))/100; |
| } |
| SDL_Atari_C2pConvert4_pal(TT_palette); /* convert the lighting */ |
| break; |
| case VDO_TT: |
| for(i = 0; i < ncolors; i++) |
| { |
| r = colors[i].r; |
| v = colors[i].g; |
| b = colors[i].b; |
| |
| TT_palette[i]=((r>>4)<<8)|((v>>4)<<4)|(b>>4); |
| } |
| EsetPalette(firstcolor,ncolors,TT_palette); |
| break; |
| case VDO_F30: |
| case VDO_MILAN: |
| for(i = 0; i < ncolors; i++) |
| { |
| r = colors[i].r; |
| v = colors[i].g; |
| b = colors[i].b; |
| |
| F30_palette[i]=(r<<16)|(v<<8)|b; |
| } |
| VsetRGB(firstcolor,ncolors,F30_palette); |
| break; |
| } |
| #endif |
| |
| return(1); |
| } |
| |
| /* Note: If we are terminated, this could be called in the middle of |
| another SDL video routine -- notably UpdateRects. |
| */ |
| static void XBIOS_VideoQuit(_THIS) |
| { |
| int i,j; |
| |
| Atari_ShutdownEvents(); |
| |
| /* Restore video mode and palette */ |
| #ifndef DEBUG_VIDEO_XBIOS |
| switch(XBIOS_cvdo >> 16) { |
| case VDO_ST: |
| case VDO_STE: |
| Setscreen(-1,XBIOS_oldvbase,XBIOS_oldvmode); |
| if (XBIOS_oldnumcol) { |
| Setpalette(XBIOS_oldpalette); |
| } |
| break; |
| case VDO_TT: |
| Setscreen(-1,XBIOS_oldvbase,-1); |
| EsetShift(XBIOS_oldvmode); |
| if (XBIOS_oldnumcol) { |
| EsetPalette(0, XBIOS_oldnumcol, XBIOS_oldpalette); |
| } |
| break; |
| case VDO_F30: |
| Setscreen(-1, XBIOS_oldvbase, -1); |
| if (XBIOS_centscreen) { |
| SDL_XBIOS_CentscreenRestore(this, XBIOS_oldvmode); |
| } else { |
| VsetMode(XBIOS_oldvmode); |
| } |
| if (XBIOS_oldnumcol) { |
| VsetRGB(0, XBIOS_oldnumcol, XBIOS_oldpalette); |
| } |
| break; |
| case VDO_MILAN: |
| VsetScreen(-1, &XBIOS_oldvbase, MI_MAGIC, CMD_SETADR); |
| VsetScreen(-1, &XBIOS_oldvmode, MI_MAGIC, CMD_SETMODE); |
| if (XBIOS_oldnumcol) { |
| VsetRGB(0, XBIOS_oldnumcol, XBIOS_oldpalette); |
| } |
| break; |
| } |
| Vsync(); |
| #endif |
| |
| #if SDL_VIDEO_OPENGL |
| if (gl_active) { |
| SDL_AtariGL_Quit(this, SDL_TRUE); |
| } |
| #endif |
| |
| if (XBIOS_oldpalette) { |
| SDL_free(XBIOS_oldpalette); |
| XBIOS_oldpalette=NULL; |
| } |
| XBIOS_FreeBuffers(this); |
| |
| /* Free mode list */ |
| for ( i=0; i<NUM_MODELISTS; ++i ) { |
| if ( SDL_modelist[i] != NULL ) { |
| for ( j=0; SDL_modelist[i][j]; ++j ) |
| SDL_free(SDL_modelist[i][j]); |
| SDL_free(SDL_modelist[i]); |
| SDL_modelist[i] = NULL; |
| } |
| if ( SDL_xbiosmode[i] != NULL ) { |
| for ( j=0; SDL_xbiosmode[i][j]; ++j ) |
| SDL_free(SDL_xbiosmode[i][j]); |
| SDL_free(SDL_xbiosmode[i]); |
| SDL_xbiosmode[i] = NULL; |
| } |
| } |
| |
| this->screen->pixels = NULL; |
| |
| /* Restore screensavers */ |
| if (SDL_XBIOS_TveillePresent(this)) { |
| SDL_XBIOS_TveilleEnable(this); |
| } |
| } |
| |
| #if SDL_VIDEO_OPENGL |
| |
| static void XBIOS_GL_SwapBuffers(_THIS) |
| { |
| SDL_AtariGL_SwapBuffers(this); |
| XBIOS_FlipHWSurface(this, this->screen); |
| SDL_AtariGL_MakeCurrent(this); |
| } |
| |
| #endif |