diff options
Diffstat (limited to 'distrib/sdl-1.2.15/src/video/photon/SDL_ph_modes.c')
| -rw-r--r-- | distrib/sdl-1.2.15/src/video/photon/SDL_ph_modes.c | 390 |
1 files changed, 390 insertions, 0 deletions
diff --git a/distrib/sdl-1.2.15/src/video/photon/SDL_ph_modes.c b/distrib/sdl-1.2.15/src/video/photon/SDL_ph_modes.c new file mode 100644 index 0000000..8c2bf7e --- /dev/null +++ b/distrib/sdl-1.2.15/src/video/photon/SDL_ph_modes.c @@ -0,0 +1,390 @@ +/* + 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" + +#include "SDL_ph_modes_c.h" + +static PgVideoModeInfo_t mode_info; +static PgVideoModes_t mode_list; + +/* The current list of available video modes */ +SDL_Rect SDL_modelist[PH_MAX_VIDEOMODES]; +SDL_Rect* SDL_modearray[PH_MAX_VIDEOMODES]; + +static int compare_modes_by_res(const void* mode1, const void* mode2) +{ + PgVideoModeInfo_t mode1_info; + PgVideoModeInfo_t mode2_info; + + if (PgGetVideoModeInfo(*(unsigned short*)mode1, &mode1_info) < 0) + { + return 0; + } + + if (PgGetVideoModeInfo(*(unsigned short*)mode2, &mode2_info) < 0) + { + return 0; + } + + if (mode1_info.width == mode2_info.width) + { + return mode2_info.height - mode1_info.height; + } + else + { + return mode2_info.width - mode1_info.width; + } +} + +SDL_Rect **ph_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) +{ + int i = 0; + int j = 0; + SDL_Rect Amodelist[PH_MAX_VIDEOMODES]; + + for (i=0; i<PH_MAX_VIDEOMODES; i++) + { + SDL_modearray[i]=&SDL_modelist[i]; + } + + if (PgGetVideoModeList(&mode_list) < 0) + { + SDL_SetError("ph_ListModes(): PgGetVideoModeList() function failed !\n"); + return NULL; + } + + mode_info.bits_per_pixel = 0; + + for (i=0; i < mode_list.num_modes; i++) + { + if (PgGetVideoModeInfo(mode_list.modes[i], &mode_info) < 0) + { + SDL_SetError("ph_ListModes(): PgGetVideoModeInfo() function failed on mode: 0x%X.\n", mode_list.modes[i]); + return NULL; + } + if(mode_info.bits_per_pixel == format->BitsPerPixel) + { + Amodelist[j].w = mode_info.width; + Amodelist[j].h = mode_info.height; + Amodelist[j].x = 0; + Amodelist[j].y = 0; + j++; + } + } + + /* reorder biggest for smallest, assume width dominates */ + + for(i=0; i<j; i++) + { + SDL_modelist[i].w = Amodelist[j - i - 1].w; + SDL_modelist[i].h = Amodelist[j - i - 1].h; + SDL_modelist[i].x = Amodelist[j - i - 1].x; + SDL_modelist[i].y = Amodelist[j - i - 1].y; + } + SDL_modearray[j]=NULL; + + return SDL_modearray; +} + +void ph_FreeVideoModes(_THIS) +{ + return; +} + +/* return the mode associated with width, height and bpp */ +/* if there is no mode then zero is returned */ +int ph_GetVideoMode(int width, int height, int bpp) +{ + int i; + int modestage=0; + int closestmode=0; + + if (PgGetVideoModeList(&mode_list) < 0) + { + return -1; + } + + /* special case for the double-sized 320x200 mode */ + if ((width==640) && (height==400)) + { + modestage=1; + } + + /* search list for exact match */ + for (i=0; i<mode_list.num_modes; i++) + { + if (PgGetVideoModeInfo(mode_list.modes[i], &mode_info) < 0) + { + return 0; + } + + if ((mode_info.width == width) && (mode_info.height == height) && + (mode_info.bits_per_pixel == bpp)) + { + return mode_list.modes[i]; + } + else + { + if ((modestage) && (mode_info.width == width) && (mode_info.height == height+80) && + (mode_info.bits_per_pixel == bpp)) + { + modestage=2; + closestmode=mode_list.modes[i]; + } + } + } + + /* if we are here, then no 640x400xbpp mode found and we'll emulate it via 640x480xbpp mode */ + if (modestage==2) + { + return closestmode; + } + + return (i == mode_list.num_modes) ? 0 : mode_list.modes[i]; +} + +/* return the mode associated with width, height and bpp */ +/* if requested bpp is not found the mode with closest bpp is returned */ +int get_mode_any_format(int width, int height, int bpp) +{ + int i, closest, delta, min_delta; + + if (PgGetVideoModeList(&mode_list) < 0) + { + return -1; + } + + SDL_qsort(mode_list.modes, mode_list.num_modes, sizeof(unsigned short), compare_modes_by_res); + + for(i=0;i<mode_list.num_modes;i++) + { + if (PgGetVideoModeInfo(mode_list.modes[i], &mode_info) < 0) + { + return 0; + } + if ((mode_info.width == width) && (mode_info.height == height)) + { + break; + } + } + + if (i<mode_list.num_modes) + { + /* get closest bpp */ + closest = i++; + if (mode_info.bits_per_pixel == bpp) + { + return mode_list.modes[closest]; + } + + min_delta = abs(mode_info.bits_per_pixel - bpp); + + while(1) + { + if (PgGetVideoModeInfo(mode_list.modes[i], &mode_info) < 0) + { + return 0; + } + + if ((mode_info.width != width) || (mode_info.height != height)) + { + break; + } + else + { + if (mode_info.bits_per_pixel == bpp) + { + closest = i; + break; + } + else + { + delta = abs(mode_info.bits_per_pixel - bpp); + if (delta < min_delta) + { + closest = i; + min_delta = delta; + } + i++; + } + } + } + return mode_list.modes[closest]; + } + + return 0; +} + +int ph_ToggleFullScreen(_THIS, int on) +{ + return -1; +} + +int ph_EnterFullScreen(_THIS, SDL_Surface* screen, int fmode) +{ + PgDisplaySettings_t settings; + int mode; + char* refreshrate; + int refreshratenum; + + if (!currently_fullscreen) + { + /* Get the video mode and set it */ + if (screen->flags & SDL_ANYFORMAT) + { + if ((mode = get_mode_any_format(screen->w, screen->h, screen->format->BitsPerPixel)) == 0) + { + SDL_SetError("ph_EnterFullScreen(): can't find appropriate video mode !\n"); + return 0; + } + } + else + { + if ((mode = ph_GetVideoMode(screen->w, screen->h, screen->format->BitsPerPixel)) == 0) + { + SDL_SetError("ph_EnterFullScreen(): can't find appropriate video mode !\n"); + return 0; + } + if (PgGetVideoModeInfo(mode, &mode_info) < 0) + { + SDL_SetError("ph_EnterFullScreen(): can't get video mode capabilities !\n"); + return 0; + } + if (mode_info.height != screen->h) + { + if ((mode_info.height==480) && (screen->h==400)) + { + videomode_emulatemode=1; + } + } + else + { + videomode_emulatemode=0; + } + } + + /* save old video mode caps */ + PgGetVideoMode(&settings); + old_video_mode=settings.mode; + old_refresh_rate=settings.refresh; + + /* setup new video mode */ + settings.mode = mode; + settings.refresh = 0; + settings.flags = 0; + + refreshrate=SDL_getenv("SDL_PHOTON_FULLSCREEN_REFRESH"); + if (refreshrate!=NULL) + { + if (SDL_sscanf(refreshrate, "%d", &refreshratenum)==1) + { + settings.refresh = refreshratenum; + } + } + + if (PgSetVideoMode(&settings) < 0) + { + SDL_SetError("ph_EnterFullScreen(): PgSetVideoMode() call failed !\n"); + return 0; + } + + if (this->screen) + { + if ((this->screen->flags & SDL_OPENGL)==SDL_OPENGL) + { +#if !SDL_VIDEO_OPENGL || (_NTO_VERSION < 630) + return 0; /* 6.3.0 */ +#endif + } + } + + if (fmode==0) + { + if (OCImage.direct_context==NULL) + { + OCImage.direct_context=(PdDirectContext_t*)PdCreateDirectContext(); + if (!OCImage.direct_context) + { + SDL_SetError("ph_EnterFullScreen(): Can't create direct context !\n"); + ph_LeaveFullScreen(this); + return 0; + } + } + OCImage.oldDC=PdDirectStart(OCImage.direct_context); + } + + currently_fullscreen = 1; + } + PgFlush(); + + return 1; +} + +int ph_LeaveFullScreen(_THIS) +{ + PgDisplaySettings_t oldmode_settings; + + if (currently_fullscreen) + { + if ((this->screen) && ((this->screen->flags & SDL_OPENGL)==SDL_OPENGL)) + { +#if !SDL_VIDEO_OPENGL || (_NTO_VERSION < 630) + return 0; +#endif + } + + /* release routines starts here */ + { + if (OCImage.direct_context) + { + PdDirectStop(OCImage.direct_context); + PdReleaseDirectContext(OCImage.direct_context); + OCImage.direct_context=NULL; + } + if (OCImage.oldDC) + { + PhDCSetCurrent(OCImage.oldDC); + OCImage.oldDC=NULL; + } + + currently_fullscreen=0; + + /* Restore old video mode */ + if (old_video_mode != -1) + { + oldmode_settings.mode = (unsigned short) old_video_mode; + oldmode_settings.refresh = (unsigned short) old_refresh_rate; + oldmode_settings.flags = 0; + + if (PgSetVideoMode(&oldmode_settings) < 0) + { + SDL_SetError("Ph_LeaveFullScreen(): PgSetVideoMode() function failed !\n"); + return 0; + } + } + + old_video_mode=-1; + old_refresh_rate=-1; + } + } + return 1; +} |