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 #include "omapsdl.h"
  15
  16
  17 static int omap_available(void)
  18 {
  19         trace();
  20         return 1;
  21 }
  22
  23 static void omap_free(SDL_VideoDevice *device)
  24 {
  25         trace();
  26         free(device);
  27 }
  28
  29 static int omap_VideoInit(SDL_VideoDevice *this, SDL_PixelFormat *vformat)
  30 {
  31         const char *tmp;
  32         int w, h, ret;
  33
  34         trace();
  35
  36         // default to 16bpp
  37         vformat->BitsPerPixel = 16;
  38
  39         omapsdl_input_init();
  40         omapsdl_config();
  41
  42         tmp = getenv("SDL_OMAP_DEFAULT_MODE");
  43         if (tmp != NULL && sscanf(tmp, "%dx%d", &w, &h) == 2) {
  44                 this->info.current_w = w;
  45                 this->info.current_h = h;
  46         }
  47         else if (osdl_video_detect_screen(this->hidden) == 0) {
  48                 this->info.current_w = this->hidden->screen_w;
  49                 this->info.current_h = this->hidden->screen_h;
  50         }
  51
  52         this->info.hw_available = 1;
  53
  54         return 0;
  55 }
  56
  57 static void omap_VideoQuit(SDL_VideoDevice *this)
  58 {
  59         trace();
  60
  61         osdl_video_finish(this->hidden);
  62         this->screen->pixels = NULL;
  63         omapsdl_input_finish();
  64 }
  65
  66 static SDL_Rect **omap_ListModes(SDL_VideoDevice *this, SDL_PixelFormat *format, Uint32 flags)
  67 {
  68         static SDL_Rect omap_mode_list[] = {
  69                 /* XXX: we are not really restricted to fixed modes */
  70                 { 0, 0, 1600, 1200 },
  71                 { 0, 0, 1408, 1056 },
  72                 { 0, 0, 1280, 1024 },
  73                 { 0, 0, 1152,  864 },
  74                 { 0, 0, 1024,  768 },
  75                 { 0, 0,  960,  720 },
  76                 { 0, 0,  800,  600 },
  77                 { 0, 0,  768,  576 },
  78                 { 0, 0,  720,  576 },
  79                 { 0, 0,  800,  480 },
  80                 { 0, 0,  720,  480 },
  81                 { 0, 0,  640,  480 },
  82                 { 0, 0,  640,  400 },
  83                 { 0, 0,  512,  384 },
  84                 { 0, 0,  320,  240 },
  85                 { 0, 0,  320,  200 },
  86         };
  87         /* broken API needs this stupidity */
  88         static SDL_Rect *omap_modes[] = {
  89                 &omap_mode_list[ 0], &omap_mode_list[ 1],
  90                 &omap_mode_list[ 2], &omap_mode_list[ 3],
  91                 &omap_mode_list[ 4], &omap_mode_list[ 5],
  92                 &omap_mode_list[ 6], &omap_mode_list[ 7],
  93                 &omap_mode_list[ 8], &omap_mode_list[ 9],
  94                 &omap_mode_list[10], &omap_mode_list[11],
  95                 &omap_mode_list[12], &omap_mode_list[13],
  96                 &omap_mode_list[14], &omap_mode_list[15],
  97                 NULL
  98         };
  99
 100         trace();
 101
 102         if (format->BitsPerPixel <= 8)
 103                 // not (yet?) supported
 104                 return NULL;
 105
 106         return omap_modes;
 107 }
 108
 109 static SDL_Surface *omap_SetVideoMode(SDL_VideoDevice *this, SDL_Surface *current, int width,
 110                                         int height, int bpp, Uint32 flags)
 111 {
 112         trace("%d, %d, %d, %08x", width, height, bpp, flags);
 113
 114         if (osdl_video_set_mode(this->hidden, width, height, bpp) < 0)
 115                 return NULL;
 116
 117         if (!SDL_ReallocFormat(current, 16, 0xf800, 0x07e0, 0x001f, 0))
 118                 return NULL;
 119
 120         current->flags = SDL_FULLSCREEN | SDL_DOUBLEBUF | SDL_HWSURFACE;
 121         current->w = width;
 122         current->h = height;
 123         current->pitch = SDL_CalculatePitch(current);
 124
 125         current->pixels = osdl_video_flip(this->hidden);
 126
 127         return current;
 128 }
 129
 130 static int omap_LockHWSurface(SDL_VideoDevice *this, SDL_Surface *surface)
 131 {
 132         trace("%p", surface);
 133
 134         return 0;
 135 }
 136
 137 static void omap_UnlockHWSurface(SDL_VideoDevice *this, SDL_Surface *surface)
 138 {
 139         trace("%p", surface);
 140 }
 141
 142 static int omap_FlipHWSurface(SDL_VideoDevice *this, SDL_Surface *surface)
 143 {
 144         trace("%p", surface);
 145
 146         surface->pixels = osdl_video_flip(this->hidden);
 147
 148         return 0;
 149 }
 150
 151 /* we can't do hw surfaces (besides screen one) yet */
 152 static int omap_AllocHWSurface(SDL_VideoDevice *this, SDL_Surface *surface)
 153 {
 154         trace("%p", surface);
 155         return -1;
 156 }
 157
 158 static void omap_FreeHWSurface(SDL_VideoDevice *this, SDL_Surface *surface)
 159 {
 160         trace("%p", surface);
 161 }
 162
 163 static int omap_SetColors(SDL_VideoDevice *this, int firstcolor, int ncolors, SDL_Color *colors)
 164 {
 165         trace("%d, %d, %p", firstcolor, ncolors, colors);
 166         return 0;
 167 }
 168
 169 static void omap_UpdateRects(SDL_VideoDevice *this, int nrects, SDL_Rect *rects)
 170 {
 171         trace("%d, %p", nrects, rects);
 172
 173         if (nrects != 1 || rects->x != 0 || rects->y != 0 ||
 174                         rects->w != this->screen->w || rects->h != this->screen->h) {
 175                 static int warned = 0;
 176                 if (!warned) {
 177                         not_supported();
 178                         warned = 1;
 179                 }
 180         }
 181
 182         this->screen->pixels = osdl_video_flip(this->hidden);
 183 }
 184
 185 static void omap_InitOSKeymap(SDL_VideoDevice *this)
 186 {
 187         trace();
 188 }
 189
 190 static int key_event_cb(void *cb_arg, int sdl_kc, int is_pressed)
 191 {
 192         SDL_keysym keysym = { 0, };
 193
 194         keysym.sym = sdl_kc;
 195         SDL_PrivateKeyboard(is_pressed, &keysym);
 196 }
 197
 198 static int ts_event_cb(void *cb_arg, int x, int y, unsigned int pressure)
 199 {
 200         static int was_pressed;
 201
 202         SDL_PrivateMouseMotion(0, 0, x, y);
 203
 204         pressure = !!pressure;
 205         if (pressure != was_pressed) {
 206                 SDL_PrivateMouseButton(pressure ? SDL_PRESSED : SDL_RELEASED, 1, 0, 0);
 207                 was_pressed = pressure;
 208         }
 209 }
 210
 211 static void omap_PumpEvents(SDL_VideoDevice *this)
 212 {
 213         trace();
 214
 215         omapsdl_input_get_events(0, key_event_cb, ts_event_cb, NULL);
 216 }
 217
 218 static SDL_VideoDevice *omap_create(int devindex)
 219 {
 220         SDL_VideoDevice *this;
 221
 222         this = calloc(1, sizeof(*this) + sizeof(*this->hidden));
 223         if (this == NULL) {
 224                 SDL_OutOfMemory();
 225                 return 0;
 226         }
 227         this->hidden = (void *)(this + 1);
 228         this->VideoInit = omap_VideoInit;
 229         this->ListModes = omap_ListModes;
 230         this->SetVideoMode = omap_SetVideoMode;
 231         this->LockHWSurface = omap_LockHWSurface;
 232         this->UnlockHWSurface = omap_UnlockHWSurface;
 233         this->FlipHWSurface = omap_FlipHWSurface;
 234         this->AllocHWSurface = omap_AllocHWSurface;
 235         this->FreeHWSurface = omap_FreeHWSurface;
 236         this->SetColors = omap_SetColors;
 237         this->UpdateRects = omap_UpdateRects;
 238         this->VideoQuit = omap_VideoQuit;
 239         this->InitOSKeymap = omap_InitOSKeymap;
 240         this->PumpEvents = omap_PumpEvents;
 241         this->free = omap_free;
 242
 243         return this;
 244 }
 245
 246 VideoBootStrap omapdss_bootstrap = {
 247         "omapdss", "OMAP DSS2 Framebuffer Driver",
 248         omap_available, omap_create
 249 };
 250