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Diffstat (limited to 'src/video/photon/SDL_ph_modes.c')
-rw-r--r--src/video/photon/SDL_ph_modes.c390
1 files changed, 390 insertions, 0 deletions
diff --git a/src/video/photon/SDL_ph_modes.c b/src/video/photon/SDL_ph_modes.c
new file mode 100644
index 0000000..67cb979
--- /dev/null
+++ b/src/video/photon/SDL_ph_modes.c
@@ -0,0 +1,390 @@
+/*
+ SDL - Simple DirectMedia Layer
+ Copyright (C) 1997-2009 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;
+}
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