| /* |
| SDL - Simple DirectMedia Layer |
| Copyright (C) 1997-2006 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_INTERNALOPENGL) { |
| #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_INTERNALOPENGL)) { |
| #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; |
| } |
| |
| /* vi: set ts=4 sw=4 expandtab: */ |
