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 <stdio.h>
   9 #include <stdlib.h>
  10
  11 #include "../SDL_sysvideo.h"
  12 #include "../SDL_pixels_c.h"
  13 #include "../../events/SDL_events_c.h"
  14
  15 #include "linux/xenv.h"
  16 #include "omapsdl.h"
  17
  18
  19 static int omap_available(void)
  20 {
  21         trace();
  22         return 1;
  23 }
  24
  25 static void omap_free(SDL_VideoDevice *device)
  26 {
  27         trace();
  28         free(device);
  29 }
  30
  31 static int omap_VideoInit(SDL_VideoDevice *this, SDL_PixelFormat *vformat)
  32 {
  33         const char *tmp;
  34         int w, h, ret;
  35
  36         trace();
  37
  38         // default to 16bpp
  39         vformat->BitsPerPixel = 16;
  40
  41         omapsdl_input_init();
  42         omapsdl_config();
  43
  44         tmp = getenv("SDL_OMAP_DEFAULT_MODE");
  45         if (tmp != NULL && sscanf(tmp, "%dx%d", &w, &h) == 2) {
  46                 this->info.current_w = w;
  47                 this->info.current_h = h;
  48         }
  49         else if (osdl_video_detect_screen(this->hidden) == 0) {
  50                 this->info.current_w = this->hidden->screen_w;
  51                 this->info.current_h = this->hidden->screen_h;
  52         }
  53
  54         this->handles_any_size = 1;
  55         this->info.hw_available = 1;
  56
  57         return 0;
  58 }
  59
  60 static void omap_VideoQuit(SDL_VideoDevice *this)
  61 {
  62         trace();
  63
  64         osdl_video_finish(this->hidden);
  65         this->screen->pixels = NULL;
  66         omapsdl_input_finish();
  67 }
  68
  69 static SDL_Rect **omap_ListModes(SDL_VideoDevice *this, SDL_PixelFormat *format, Uint32 flags)
  70 {
  71         static SDL_Rect omap_mode_max = {
  72                 /* with handles_any_size, should accept anything up to this
  73                  * XXX: possibly set this dynamically based on free vram? */
  74                 0, 0, 1600, 1200
  75         };
  76         /* broken API needs this stupidity */
  77         static SDL_Rect *omap_modes[] = {
  78                 &omap_mode_max,
  79                 NULL
  80         };
  81
  82         trace();
  83
  84         if (format->BitsPerPixel <= 8)
  85                 // not (yet?) supported
  86                 return NULL;
  87
  88         return omap_modes;
  89 }
  90
  91 static SDL_Surface *omap_SetVideoMode(SDL_VideoDevice *this, SDL_Surface *current, int width,
  92                                         int height, int bpp, Uint32 flags)
  93 {
  94         SDL_PixelFormat *format;
  95         Uint32 unhandled_flags;
  96         int ret;
  97
  98         trace("%d, %d, %d, %08x", width, height, bpp, flags);
  99
 100         omapsdl_config_from_env();
 101
 102         switch (bpp) {
 103         case 16:
 104                 format = SDL_ReallocFormat(current, 16, 0xf800, 0x07e0, 0x001f, 0);
 105                 break;
 106         case 24:
 107                 format = SDL_ReallocFormat(current, 24, 0xff0000, 0xff00, 0xff, 0);
 108                 break;
 109         case 32:
 110                 format = SDL_ReallocFormat(current, 32, 0xff0000, 0xff00, 0xff, 0xff000000);
 111                 break;
 112         default:
 113                 err("SetVideoMode: bpp %d not supported", bpp);
 114                 return NULL;
 115         }
 116         if (format == NULL)
 117                 return NULL;
 118
 119         if (!(flags & SDL_DOUBLEBUF) && gcfg_force_doublebuf) {
 120                 log("forcing SDL_DOUBLEBUF");
 121                 flags |= SDL_DOUBLEBUF;
 122         }
 123
 124         ret = osdl_video_set_mode(this->hidden, width, height, bpp,
 125                 (flags & SDL_DOUBLEBUF) ? 1 : 0);
 126         if (ret < 0)
 127                 return NULL;
 128
 129         flags |= SDL_FULLSCREEN | SDL_HWSURFACE;
 130         unhandled_flags = flags & ~(SDL_FULLSCREEN | SDL_HWSURFACE | SDL_DOUBLEBUF);
 131         if (unhandled_flags != 0) {
 132                 log("dropping unhandled flags: %08x", unhandled_flags);
 133                 flags &= ~unhandled_flags;
 134         }
 135
 136         current->flags = flags;
 137         current->w = width;
 138         current->h = height;
 139         current->pitch = SDL_CalculatePitch(current);
 140
 141         current->pixels = osdl_video_flip(this->hidden);
 142
 143         return current;
 144 }
 145
 146 static int omap_LockHWSurface(SDL_VideoDevice *this, SDL_Surface *surface)
 147 {
 148         trace("%p", surface);
 149
 150         return 0;
 151 }
 152
 153 static void omap_UnlockHWSurface(SDL_VideoDevice *this, SDL_Surface *surface)
 154 {
 155         trace("%p", surface);
 156 }
 157
 158 static int omap_FlipHWSurface(SDL_VideoDevice *this, SDL_Surface *surface)
 159 {
 160         trace("%p", surface);
 161
 162         surface->pixels = osdl_video_flip(this->hidden);
 163
 164         return 0;
 165 }
 166
 167 /* we can't do hw surfaces (besides screen one) yet */
 168 static int omap_AllocHWSurface(SDL_VideoDevice *this, SDL_Surface *surface)
 169 {
 170         trace("%p", surface);
 171         return -1;
 172 }
 173
 174 static void omap_FreeHWSurface(SDL_VideoDevice *this, SDL_Surface *surface)
 175 {
 176         trace("%p", surface);
 177 }
 178
 179 static int omap_SetColors(SDL_VideoDevice *this, int firstcolor, int ncolors, SDL_Color *colors)
 180 {
 181         trace("%d, %d, %p", firstcolor, ncolors, colors);
 182         return 0;
 183 }
 184
 185 static void omap_UpdateRects(SDL_VideoDevice *this, int nrects, SDL_Rect *rects)
 186 {
 187         trace("%d, %p", nrects, rects);
 188
 189         /* hmh.. */
 190         if (nrects == 1 && rects->x == 0 && rects->y == 0 &&
 191             (this->screen->flags & SDL_DOUBLEBUF) &&
 192             rects->w == this->screen->w && rects->h == this->screen->h)
 193         {
 194                 this->screen->pixels = osdl_video_flip(this->hidden);
 195         }
 196 }
 197
 198 static void omap_InitOSKeymap(SDL_VideoDevice *this)
 199 {
 200         trace();
 201 }
 202
 203 static int key_event_cb(void *cb_arg, int sdl_kc, int is_pressed)
 204 {
 205         SDL_keysym keysym = { 0, };
 206
 207         keysym.sym = sdl_kc;
 208         SDL_PrivateKeyboard(is_pressed, &keysym);
 209 }
 210
 211 static int ts_event_cb(void *cb_arg, int x, int y, unsigned int pressure)
 212 {
 213         static int was_pressed;
 214
 215         SDL_PrivateMouseMotion(0, 0, x, y);
 216
 217         pressure = !!pressure;
 218         if (pressure != was_pressed) {
 219                 SDL_PrivateMouseButton(pressure ? SDL_PRESSED : SDL_RELEASED, 1, 0, 0);
 220                 was_pressed = pressure;
 221         }
 222 }
 223
 224 static void omap_PumpEvents(SDL_VideoDevice *this)
 225 {
 226         struct SDL_PrivateVideoData *pdata = this->hidden;
 227         int dummy;
 228
 229         trace();
 230
 231         omapsdl_input_get_events(0, key_event_cb, ts_event_cb, NULL);
 232
 233         // XXX: we might want to process some X events too
 234         if (pdata->xenv_up)
 235                 xenv_update(&dummy);
 236 }
 237
 238 static SDL_VideoDevice *omap_create(int devindex)
 239 {
 240         SDL_VideoDevice *this;
 241
 242         this = calloc(1, sizeof(*this) + sizeof(*this->hidden));
 243         if (this == NULL) {
 244                 SDL_OutOfMemory();
 245                 return 0;
 246         }
 247         this->hidden = (void *)(this + 1);
 248         this->VideoInit = omap_VideoInit;
 249         this->ListModes = omap_ListModes;
 250         this->SetVideoMode = omap_SetVideoMode;
 251         this->LockHWSurface = omap_LockHWSurface;
 252         this->UnlockHWSurface = omap_UnlockHWSurface;
 253         this->FlipHWSurface = omap_FlipHWSurface;
 254         this->AllocHWSurface = omap_AllocHWSurface;
 255         this->FreeHWSurface = omap_FreeHWSurface;
 256         this->SetColors = omap_SetColors;
 257         this->UpdateRects = omap_UpdateRects;
 258         this->VideoQuit = omap_VideoQuit;
 259         this->InitOSKeymap = omap_InitOSKeymap;
 260         this->PumpEvents = omap_PumpEvents;
 261         this->free = omap_free;
 262
 263         return this;
 264 }
 265
 266 VideoBootStrap omapdss_bootstrap = {
 267         "omapdss", "OMAP DSS2 Framebuffer Driver",
 268         omap_available, omap_create
 269 };
 270