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         trace("%d, %d, %d, %08x", width, height, bpp, flags);
  95
  96         if (osdl_video_set_mode(this->hidden, width, height, bpp) < 0)
  97                 return NULL;
  98
  99         if (!SDL_ReallocFormat(current, 16, 0xf800, 0x07e0, 0x001f, 0))
 100                 return NULL;
 101
 102         current->flags = SDL_FULLSCREEN | SDL_DOUBLEBUF | SDL_HWSURFACE;
 103         current->w = width;
 104         current->h = height;
 105         current->pitch = SDL_CalculatePitch(current);
 106
 107         current->pixels = osdl_video_flip(this->hidden);
 108
 109         return current;
 110 }
 111
 112 static int omap_LockHWSurface(SDL_VideoDevice *this, SDL_Surface *surface)
 113 {
 114         trace("%p", surface);
 115
 116         return 0;
 117 }
 118
 119 static void omap_UnlockHWSurface(SDL_VideoDevice *this, SDL_Surface *surface)
 120 {
 121         trace("%p", surface);
 122 }
 123
 124 static int omap_FlipHWSurface(SDL_VideoDevice *this, SDL_Surface *surface)
 125 {
 126         trace("%p", surface);
 127
 128         surface->pixels = osdl_video_flip(this->hidden);
 129
 130         return 0;
 131 }
 132
 133 /* we can't do hw surfaces (besides screen one) yet */
 134 static int omap_AllocHWSurface(SDL_VideoDevice *this, SDL_Surface *surface)
 135 {
 136         trace("%p", surface);
 137         return -1;
 138 }
 139
 140 static void omap_FreeHWSurface(SDL_VideoDevice *this, SDL_Surface *surface)
 141 {
 142         trace("%p", surface);
 143 }
 144
 145 static int omap_SetColors(SDL_VideoDevice *this, int firstcolor, int ncolors, SDL_Color *colors)
 146 {
 147         trace("%d, %d, %p", firstcolor, ncolors, colors);
 148         return 0;
 149 }
 150
 151 static void omap_UpdateRects(SDL_VideoDevice *this, int nrects, SDL_Rect *rects)
 152 {
 153         trace("%d, %p", nrects, rects);
 154
 155         if (nrects != 1 || rects->x != 0 || rects->y != 0 ||
 156                         rects->w != this->screen->w || rects->h != this->screen->h) {
 157                 static int warned = 0;
 158                 if (!warned) {
 159                         not_supported();
 160                         warned = 1;
 161                 }
 162         }
 163
 164         this->screen->pixels = osdl_video_flip(this->hidden);
 165 }
 166
 167 static void omap_InitOSKeymap(SDL_VideoDevice *this)
 168 {
 169         trace();
 170 }
 171
 172 static int key_event_cb(void *cb_arg, int sdl_kc, int is_pressed)
 173 {
 174         SDL_keysym keysym = { 0, };
 175
 176         keysym.sym = sdl_kc;
 177         SDL_PrivateKeyboard(is_pressed, &keysym);
 178 }
 179
 180 static int ts_event_cb(void *cb_arg, int x, int y, unsigned int pressure)
 181 {
 182         static int was_pressed;
 183
 184         SDL_PrivateMouseMotion(0, 0, x, y);
 185
 186         pressure = !!pressure;
 187         if (pressure != was_pressed) {
 188                 SDL_PrivateMouseButton(pressure ? SDL_PRESSED : SDL_RELEASED, 1, 0, 0);
 189                 was_pressed = pressure;
 190         }
 191 }
 192
 193 static void omap_PumpEvents(SDL_VideoDevice *this)
 194 {
 195         struct SDL_PrivateVideoData *pdata = this->hidden;
 196         int dummy;
 197
 198         trace();
 199
 200         omapsdl_input_get_events(0, key_event_cb, ts_event_cb, NULL);
 201
 202         // XXX: we might want to process some X events too
 203         if (pdata->xenv_up)
 204                 xenv_update(&dummy);
 205 }
 206
 207 static SDL_VideoDevice *omap_create(int devindex)
 208 {
 209         SDL_VideoDevice *this;
 210
 211         this = calloc(1, sizeof(*this) + sizeof(*this->hidden));
 212         if (this == NULL) {
 213                 SDL_OutOfMemory();
 214                 return 0;
 215         }
 216         this->hidden = (void *)(this + 1);
 217         this->VideoInit = omap_VideoInit;
 218         this->ListModes = omap_ListModes;
 219         this->SetVideoMode = omap_SetVideoMode;
 220         this->LockHWSurface = omap_LockHWSurface;
 221         this->UnlockHWSurface = omap_UnlockHWSurface;
 222         this->FlipHWSurface = omap_FlipHWSurface;
 223         this->AllocHWSurface = omap_AllocHWSurface;
 224         this->FreeHWSurface = omap_FreeHWSurface;
 225         this->SetColors = omap_SetColors;
 226         this->UpdateRects = omap_UpdateRects;
 227         this->VideoQuit = omap_VideoQuit;
 228         this->InitOSKeymap = omap_InitOSKeymap;
 229         this->PumpEvents = omap_PumpEvents;
 230         this->free = omap_free;
 231
 232         return this;
 233 }
 234
 235 VideoBootStrap omapdss_bootstrap = {
 236         "omapdss", "OMAP DSS2 Framebuffer Driver",
 237         omap_available, omap_create
 238 };
 239