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
  96         trace("%d, %d, %d, %08x", width, height, bpp, flags);
  97
  98         switch (bpp) {
  99         case 16:
 100                 format = SDL_ReallocFormat(current, 16, 0xf800, 0x07e0, 0x001f, 0);
 101                 break;
 102         case 24:
 103                 format = SDL_ReallocFormat(current, 24, 0xff0000, 0xff00, 0xff, 0);
 104                 break;
 105         case 32:
 106                 format = SDL_ReallocFormat(current, 32, 0xff0000, 0xff00, 0xff, 0xff000000);
 107                 break;
 108         default:
 109                 err("SetVideoMode: bpp %d not supported\n", bpp);
 110                 return NULL;
 111         }
 112         if (format == NULL)
 113                 return NULL;
 114
 115         if (osdl_video_set_mode(this->hidden, width, height, bpp) < 0)
 116                 return NULL;
 117
 118         current->flags = SDL_FULLSCREEN | SDL_DOUBLEBUF | SDL_HWSURFACE;
 119         current->w = width;
 120         current->h = height;
 121         current->pitch = SDL_CalculatePitch(current);
 122
 123         current->pixels = osdl_video_flip(this->hidden);
 124
 125         return current;
 126 }
 127
 128 static int omap_LockHWSurface(SDL_VideoDevice *this, SDL_Surface *surface)
 129 {
 130         trace("%p", surface);
 131
 132         return 0;
 133 }
 134
 135 static void omap_UnlockHWSurface(SDL_VideoDevice *this, SDL_Surface *surface)
 136 {
 137         trace("%p", surface);
 138 }
 139
 140 static int omap_FlipHWSurface(SDL_VideoDevice *this, SDL_Surface *surface)
 141 {
 142         trace("%p", surface);
 143
 144         surface->pixels = osdl_video_flip(this->hidden);
 145
 146         return 0;
 147 }
 148
 149 /* we can't do hw surfaces (besides screen one) yet */
 150 static int omap_AllocHWSurface(SDL_VideoDevice *this, SDL_Surface *surface)
 151 {
 152         trace("%p", surface);
 153         return -1;
 154 }
 155
 156 static void omap_FreeHWSurface(SDL_VideoDevice *this, SDL_Surface *surface)
 157 {
 158         trace("%p", surface);
 159 }
 160
 161 static int omap_SetColors(SDL_VideoDevice *this, int firstcolor, int ncolors, SDL_Color *colors)
 162 {
 163         trace("%d, %d, %p", firstcolor, ncolors, colors);
 164         return 0;
 165 }
 166
 167 static void omap_UpdateRects(SDL_VideoDevice *this, int nrects, SDL_Rect *rects)
 168 {
 169         trace("%d, %p", nrects, rects);
 170
 171         if (nrects != 1 || rects->x != 0 || rects->y != 0 ||
 172                         rects->w != this->screen->w || rects->h != this->screen->h) {
 173                 static int warned = 0;
 174                 if (!warned) {
 175                         not_supported();
 176                         warned = 1;
 177                 }
 178         }
 179
 180         this->screen->pixels = osdl_video_flip(this->hidden);
 181 }
 182
 183 static void omap_InitOSKeymap(SDL_VideoDevice *this)
 184 {
 185         trace();
 186 }
 187
 188 static int key_event_cb(void *cb_arg, int sdl_kc, int is_pressed)
 189 {
 190         SDL_keysym keysym = { 0, };
 191
 192         keysym.sym = sdl_kc;
 193         SDL_PrivateKeyboard(is_pressed, &keysym);
 194 }
 195
 196 static int ts_event_cb(void *cb_arg, int x, int y, unsigned int pressure)
 197 {
 198         static int was_pressed;
 199
 200         SDL_PrivateMouseMotion(0, 0, x, y);
 201
 202         pressure = !!pressure;
 203         if (pressure != was_pressed) {
 204                 SDL_PrivateMouseButton(pressure ? SDL_PRESSED : SDL_RELEASED, 1, 0, 0);
 205                 was_pressed = pressure;
 206         }
 207 }
 208
 209 static void omap_PumpEvents(SDL_VideoDevice *this)
 210 {
 211         struct SDL_PrivateVideoData *pdata = this->hidden;
 212         int dummy;
 213
 214         trace();
 215
 216         omapsdl_input_get_events(0, key_event_cb, ts_event_cb, NULL);
 217
 218         // XXX: we might want to process some X events too
 219         if (pdata->xenv_up)
 220                 xenv_update(&dummy);
 221 }
 222
 223 static SDL_VideoDevice *omap_create(int devindex)
 224 {
 225         SDL_VideoDevice *this;
 226
 227         this = calloc(1, sizeof(*this) + sizeof(*this->hidden));
 228         if (this == NULL) {
 229                 SDL_OutOfMemory();
 230                 return 0;
 231         }
 232         this->hidden = (void *)(this + 1);
 233         this->VideoInit = omap_VideoInit;
 234         this->ListModes = omap_ListModes;
 235         this->SetVideoMode = omap_SetVideoMode;
 236         this->LockHWSurface = omap_LockHWSurface;
 237         this->UnlockHWSurface = omap_UnlockHWSurface;
 238         this->FlipHWSurface = omap_FlipHWSurface;
 239         this->AllocHWSurface = omap_AllocHWSurface;
 240         this->FreeHWSurface = omap_FreeHWSurface;
 241         this->SetColors = omap_SetColors;
 242         this->UpdateRects = omap_UpdateRects;
 243         this->VideoQuit = omap_VideoQuit;
 244         this->InitOSKeymap = omap_InitOSKeymap;
 245         this->PumpEvents = omap_PumpEvents;
 246         this->free = omap_free;
 247
 248         return this;
 249 }
 250
 251 VideoBootStrap omapdss_bootstrap = {
 252         "omapdss", "OMAP DSS2 Framebuffer Driver",
 253         omap_available, omap_create
 254 };
 255