src/video/omapdss/sdlif.c

   1 /*
   2  * (C) Gražvydas "notaz" Ignotas, 2010
   3  *
   4  * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
   5  * See the COPYING file in the top-level directory.
   6  */
   7
   8 #include <stdlib.h>
   9
  10 #include "../SDL_sysvideo.h"
  11 #include "../SDL_pixels_c.h"
  12 #include "../../events/SDL_events_c.h"
  13 #include "linux/fbdev.h"
  14 #include "linux/oshide.h"
  15 #include "omapsdl.h"
  16
  17
  18 struct SDL_PrivateVideoData {
  19         struct vout_fbdev *fbdev;
  20 //      void *fbmem;
  21 };
  22
  23 static int omap_available(void)
  24 {
  25         trace();
  26         return 1;
  27 }
  28
  29 static void omap_free(SDL_VideoDevice *device)
  30 {
  31         trace();
  32         free(device);
  33 }
  34
  35 static int omap_VideoInit(SDL_VideoDevice *this, SDL_PixelFormat *vformat)
  36 {
  37         trace();
  38
  39         // default to 16bpp
  40         vformat->BitsPerPixel = 16;
  41
  42         omapsdl_input_init();
  43         omapsdl_config();
  44
  45         return 0;
  46 }
  47
  48 static void omap_VideoQuit(SDL_VideoDevice *this)
  49 {
  50         trace();
  51
  52         if (this->hidden->fbdev != NULL) {
  53                 vout_fbdev_finish(this->hidden->fbdev);
  54                 this->hidden->fbdev = NULL;
  55
  56                 oshide_finish();
  57         }
  58         this->screen->pixels = NULL;
  59         omapsdl_input_finish();
  60 }
  61
  62 static SDL_Rect **omap_ListModes(SDL_VideoDevice *this, SDL_PixelFormat *format, Uint32 flags)
  63 {
  64         static SDL_Rect omap_mode_list[] = {
  65                 // XXX: we are not really restricted to fixed modes
  66                 // FIXME: should really check the display for max supported
  67                 { 0, 0, 800, 480 },
  68                 { 0, 0, 720, 480 },
  69                 { 0, 0, 640, 480 },
  70                 { 0, 0, 640, 400 },
  71                 { 0, 0, 512, 384 },
  72                 { 0, 0, 320, 240 },
  73                 { 0, 0, 320, 200 },
  74         };
  75         // broken API needs this
  76         static SDL_Rect *omap_modes[] = {
  77                 &omap_mode_list[0],
  78                 &omap_mode_list[1],
  79                 &omap_mode_list[2],
  80                 &omap_mode_list[3],
  81                 &omap_mode_list[4],
  82                 &omap_mode_list[5],
  83                 &omap_mode_list[6],
  84                 NULL
  85         };
  86
  87         trace();
  88
  89         if (format->BitsPerPixel <= 8)
  90                 // not (yet?) supported
  91                 return NULL;
  92
  93         return omap_modes;
  94 }
  95
  96 static SDL_Surface *omap_SetVideoMode(SDL_VideoDevice *this, SDL_Surface *current, int width,
  97                                         int height, int bpp, Uint32 flags)
  98 {
  99         trace("%d, %d, %d, %08x", width, height, bpp, flags);
 100
 101         if (this->hidden->fbdev == NULL) {
 102                 this->hidden->fbdev = vout_fbdev_init("/dev/fb0", &width, &height, 0);
 103                 if (this->hidden->fbdev == NULL)
 104                         return NULL;
 105
 106                 oshide_init();
 107         }
 108         else {
 109                 if (vout_fbdev_resize(this->hidden->fbdev, width, height, 0, 0, 0, 0, 0) < 0)
 110                         return NULL;
 111         }
 112
 113         if (!SDL_ReallocFormat(current, 16, 0xf800, 0x07e0, 0x001f, 0))
 114                 return NULL;
 115
 116         current->flags = SDL_FULLSCREEN | SDL_DOUBLEBUF | SDL_HWSURFACE;
 117         current->w = width;
 118         current->h = height;
 119         current->pitch = SDL_CalculatePitch(current);
 120
 121         current->pixels = vout_fbdev_flip(this->hidden->fbdev);
 122
 123         return current;
 124 }
 125
 126 static void *flip_it(struct vout_fbdev *fbdev)
 127 {
 128         if (gcfg_force_vsync)
 129                 vout_fbdev_wait_vsync(fbdev);
 130
 131         return vout_fbdev_flip(fbdev);
 132 }
 133
 134 static int omap_LockHWSurface(SDL_VideoDevice *this, SDL_Surface *surface)
 135 {
 136         trace("%p", surface);
 137
 138         return 0;
 139 }
 140
 141 static void omap_UnlockHWSurface(SDL_VideoDevice *this, SDL_Surface *surface)
 142 {
 143         trace("%p", surface);
 144 }
 145
 146 static int omap_FlipHWSurface(SDL_VideoDevice *this, SDL_Surface *surface)
 147 {
 148         trace("%p", surface);
 149
 150         surface->pixels = flip_it(this->hidden->fbdev);
 151
 152         return 0;
 153 }
 154
 155 static int omap_SetColors(SDL_VideoDevice *this, int firstcolor, int ncolors, SDL_Color *colors)
 156 {
 157         trace("%d, %d, %p", firstcolor, ncolors, colors);
 158         return 0;
 159 }
 160
 161 static void omap_UpdateRects(SDL_VideoDevice *this, int nrects, SDL_Rect *rects)
 162 {
 163         trace("%d, %p", nrects, rects);
 164
 165         if (nrects != 1 || rects->x != 0 || rects->y != 0 ||
 166                         rects->w != this->screen->w || rects->h != this->screen->h) {
 167                 static int warned = 0;
 168                 if (!warned) {
 169                         not_supported();
 170                         warned = 1;
 171                 }
 172         }
 173
 174         if (this->hidden->fbdev)
 175                 this->screen->pixels = flip_it(this->hidden->fbdev);
 176 }
 177
 178 static void omap_InitOSKeymap(SDL_VideoDevice *this)
 179 {
 180         trace();
 181 }
 182
 183 static int key_event_cb(void *cb_arg, int sdl_kc, int is_pressed)
 184 {
 185         SDL_keysym keysym = { 0, };
 186
 187         keysym.sym = sdl_kc;
 188         SDL_PrivateKeyboard(is_pressed, &keysym);
 189 }
 190
 191 static int ts_event_cb(void *cb_arg, int x, int y, unsigned int pressure)
 192 {
 193         static int was_pressed;
 194
 195         SDL_PrivateMouseMotion(0, 0, x, y);
 196
 197         pressure = !!pressure;
 198         if (pressure != was_pressed) {
 199                 SDL_PrivateMouseButton(pressure ? SDL_PRESSED : SDL_RELEASED, 1, 0, 0);
 200                 was_pressed = pressure;
 201         }
 202 }
 203
 204 static void omap_PumpEvents(SDL_VideoDevice *this)
 205 {
 206         trace();
 207
 208         omapsdl_input_get_events(0, key_event_cb, ts_event_cb, NULL);
 209 }
 210
 211 static SDL_VideoDevice *omap_create(int devindex)
 212 {
 213         SDL_VideoDevice *this;
 214
 215         this = calloc(1, sizeof(*this) + sizeof(*this->hidden));
 216         if (this == NULL) {
 217                 SDL_OutOfMemory();
 218                 return 0;
 219         }
 220         this->hidden = (void *)(this + 1);
 221         this->VideoInit = omap_VideoInit;
 222         this->ListModes = omap_ListModes;
 223         this->SetVideoMode = omap_SetVideoMode;
 224         this->LockHWSurface = omap_LockHWSurface;
 225         this->UnlockHWSurface = omap_UnlockHWSurface;
 226         this->FlipHWSurface = omap_FlipHWSurface;
 227         this->SetColors = omap_SetColors;
 228         this->UpdateRects = omap_UpdateRects;
 229         this->VideoQuit = omap_VideoQuit;
 230         this->InitOSKeymap = omap_InitOSKeymap;
 231         this->PumpEvents = omap_PumpEvents;
 232         this->free = omap_free;
 233
 234         return this;
 235 }
 236
 237 VideoBootStrap omapdss_bootstrap = {
 238         "omapdss", "OMAP DSS2 Framebuffer Driver",
 239         omap_available, omap_create
 240 };
 241