Mercurial > sdl-ios-xcode
view src/video/photon/SDL_ph_wm.c @ 2359:b70b96e615d2 gsoc2008_iphone
These files are the OpenGL ES render driver. You should be able to use them on any platform that supports OpenGL ES -- not just iPhone. The driver is based off the OpenGL render driver.
There are a few differences between OpenGL and OpenGL ES that present difficulties for this driver:
- OpenGL ES does NOT support many pixel formats (for example, no GL_BGR). Also, when using texture functions format and internalFormat must be the same -- this means 32 bit packed formats like SDL_PIXELFORMAT_BGR888 cannot be automatically converted to GL_RGB (which is 24bpp).
- OpenGL ES doesn't have GL_PACK_ROW_LENGTH, which means data must be reformatted before uploading changes to dirty rects. This change has been added.
- OpenGL ES doesn't support paletted textures, though there is an extension. I'm looking into this.
Some other notable differences:
- OpenGL ES has an extension called GL_OES_draw_texture which allows for quicker 2D sprite-type drawing. I use this in GL_RenderCopy when it is available. The iPhone supports the extension, but the iPhone Simulator does not (presently).
- No glBegin() / glEnd() and no GL_QUADS! I'm using glDrawArrays with GL_TRIANGLE_STRIP instead!
author | Holmes Futrell <hfutrell@umail.ucsb.edu> |
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date | Thu, 17 Jul 2008 23:31:42 +0000 |
parents | c121d94672cb |
children | 99210400e8b9 |
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/* 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 <Ph.h> #include <photon/PpProto.h> #include <photon/PhWm.h> #include <photon/wmapi.h> #include "SDL_version.h" #include "SDL_timer.h" #include "SDL_video.h" #include "SDL_syswm.h" #include "../SDL_pixels_c.h" #include "../../events/SDL_events_c.h" #include "SDL_ph_modes_c.h" #include "SDL_ph_wm_c.h" void ph_SetIcon(_THIS, SDL_Surface * icon, Uint8 * mask) { return; } /* Set window caption */ void ph_SetCaption(_THIS, const char *title, const char *icon) { SDL_Lock_EventThread(); /* sanity check for set caption call before window init */ if (window != NULL) { PtSetResource(window, Pt_ARG_WINDOW_TITLE, title, 0); } SDL_Unlock_EventThread(); } /* Iconify current window */ int ph_IconifyWindow(_THIS) { PhWindowEvent_t windowevent; SDL_Lock_EventThread(); SDL_memset(&windowevent, 0, sizeof(windowevent)); windowevent.event_f = Ph_WM_HIDE; windowevent.event_state = Ph_WM_EVSTATE_HIDE; windowevent.rid = PtWidgetRid(window); PtForwardWindowEvent(&windowevent); SDL_Unlock_EventThread(); return 0; } SDL_GrabMode ph_GrabInputNoLock(_THIS, SDL_GrabMode mode) { short abs_x, abs_y; if (mode == SDL_GRAB_OFF) { PtSetResource(window, Pt_ARG_WINDOW_STATE, Pt_FALSE, Ph_WM_STATE_ISALTKEY); } else { PtSetResource(window, Pt_ARG_WINDOW_STATE, Pt_TRUE, Ph_WM_STATE_ISALTKEY); PtGetAbsPosition(window, &abs_x, &abs_y); PhMoveCursorAbs(PhInputGroup(NULL), abs_x + SDL_VideoSurface->w / 2, abs_y + SDL_VideoSurface->h / 2); } SDL_Unlock_EventThread(); return (mode); } SDL_GrabMode ph_GrabInput(_THIS, SDL_GrabMode mode) { SDL_Lock_EventThread(); mode = ph_GrabInputNoLock(this, mode); SDL_Unlock_EventThread(); return (mode); } int ph_GetWMInfo(_THIS, SDL_SysWMinfo * info) { if (info->version.major <= SDL_MAJOR_VERSION) { return 1; } else { SDL_SetError("Application not compiled with SDL %d.%d\n", SDL_MAJOR_VERSION, SDL_MINOR_VERSION); return -1; } } /* vi: set ts=4 sw=4 expandtab: */