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->handles_any_size = 1;
  53         this->info.hw_available = 1;
  54
  55         return 0;
  56 }
  57
  58 static void omap_VideoQuit(SDL_VideoDevice *this)
  59 {
  60         trace();
  61
  62         osdl_video_finish(this->hidden);
  63         this->screen->pixels = NULL;
  64         omapsdl_input_finish();
  65 }
  66
  67 static SDL_Rect **omap_ListModes(SDL_VideoDevice *this, SDL_PixelFormat *format, Uint32 flags)
  68 {
  69         static SDL_Rect omap_mode_max = {
  70                 /* with handles_any_size, should accept anything up to this
  71                  * XXX: possibly set this dynamically based on free vram? */
  72                 0, 0, 1600, 1200
  73         };
  74         /* broken API needs this stupidity */
  75         static SDL_Rect *omap_modes[] = {
  76                 &omap_mode_max,
  77                 NULL
  78         };
  79
  80         trace();
  81
  82         if (format->BitsPerPixel <= 8)
  83                 // not (yet?) supported
  84                 return NULL;
  85
  86         return omap_modes;
  87 }
  88
  89 static SDL_Surface *omap_SetVideoMode(SDL_VideoDevice *this, SDL_Surface *current, int width,
  90                                         int height, int bpp, Uint32 flags)
  91 {
  92         trace("%d, %d, %d, %08x", width, height, bpp, flags);
  93
  94         if (osdl_video_set_mode(this->hidden, width, height, bpp) < 0)
  95                 return NULL;
  96
  97         if (!SDL_ReallocFormat(current, 16, 0xf800, 0x07e0, 0x001f, 0))
  98                 return NULL;
  99
 100         current->flags = SDL_FULLSCREEN | SDL_DOUBLEBUF | SDL_HWSURFACE;
 101         current->w = width;
 102         current->h = height;
 103         current->pitch = SDL_CalculatePitch(current);
 104
 105         current->pixels = osdl_video_flip(this->hidden);
 106
 107         return current;
 108 }
 109
 110 static int omap_LockHWSurface(SDL_VideoDevice *this, SDL_Surface *surface)
 111 {
 112         trace("%p", surface);
 113
 114         return 0;
 115 }
 116
 117 static void omap_UnlockHWSurface(SDL_VideoDevice *this, SDL_Surface *surface)
 118 {
 119         trace("%p", surface);
 120 }
 121
 122 static int omap_FlipHWSurface(SDL_VideoDevice *this, SDL_Surface *surface)
 123 {
 124         trace("%p", surface);
 125
 126         surface->pixels = osdl_video_flip(this->hidden);
 127
 128         return 0;
 129 }
 130
 131 /* we can't do hw surfaces (besides screen one) yet */
 132 static int omap_AllocHWSurface(SDL_VideoDevice *this, SDL_Surface *surface)
 133 {
 134         trace("%p", surface);
 135         return -1;
 136 }
 137
 138 static void omap_FreeHWSurface(SDL_VideoDevice *this, SDL_Surface *surface)
 139 {
 140         trace("%p", surface);
 141 }
 142
 143 static int omap_SetColors(SDL_VideoDevice *this, int firstcolor, int ncolors, SDL_Color *colors)
 144 {
 145         trace("%d, %d, %p", firstcolor, ncolors, colors);
 146         return 0;
 147 }
 148
 149 static void omap_UpdateRects(SDL_VideoDevice *this, int nrects, SDL_Rect *rects)
 150 {
 151         trace("%d, %p", nrects, rects);
 152
 153         if (nrects != 1 || rects->x != 0 || rects->y != 0 ||
 154                         rects->w != this->screen->w || rects->h != this->screen->h) {
 155                 static int warned = 0;
 156                 if (!warned) {
 157                         not_supported();
 158                         warned = 1;
 159                 }
 160         }
 161
 162         this->screen->pixels = osdl_video_flip(this->hidden);
 163 }
 164
 165 static void omap_InitOSKeymap(SDL_VideoDevice *this)
 166 {
 167         trace();
 168 }
 169
 170 static int key_event_cb(void *cb_arg, int sdl_kc, int is_pressed)
 171 {
 172         SDL_keysym keysym = { 0, };
 173
 174         keysym.sym = sdl_kc;
 175         SDL_PrivateKeyboard(is_pressed, &keysym);
 176 }
 177
 178 static int ts_event_cb(void *cb_arg, int x, int y, unsigned int pressure)
 179 {
 180         static int was_pressed;
 181
 182         SDL_PrivateMouseMotion(0, 0, x, y);
 183
 184         pressure = !!pressure;
 185         if (pressure != was_pressed) {
 186                 SDL_PrivateMouseButton(pressure ? SDL_PRESSED : SDL_RELEASED, 1, 0, 0);
 187                 was_pressed = pressure;
 188         }
 189 }
 190
 191 static void omap_PumpEvents(SDL_VideoDevice *this)
 192 {
 193         trace();
 194
 195         omapsdl_input_get_events(0, key_event_cb, ts_event_cb, NULL);
 196 }
 197
 198 static SDL_VideoDevice *omap_create(int devindex)
 199 {
 200         SDL_VideoDevice *this;
 201
 202         this = calloc(1, sizeof(*this) + sizeof(*this->hidden));
 203         if (this == NULL) {
 204                 SDL_OutOfMemory();
 205                 return 0;
 206         }
 207         this->hidden = (void *)(this + 1);
 208         this->VideoInit = omap_VideoInit;
 209         this->ListModes = omap_ListModes;
 210         this->SetVideoMode = omap_SetVideoMode;
 211         this->LockHWSurface = omap_LockHWSurface;
 212         this->UnlockHWSurface = omap_UnlockHWSurface;
 213         this->FlipHWSurface = omap_FlipHWSurface;
 214         this->AllocHWSurface = omap_AllocHWSurface;
 215         this->FreeHWSurface = omap_FreeHWSurface;
 216         this->SetColors = omap_SetColors;
 217         this->UpdateRects = omap_UpdateRects;
 218         this->VideoQuit = omap_VideoQuit;
 219         this->InitOSKeymap = omap_InitOSKeymap;
 220         this->PumpEvents = omap_PumpEvents;
 221         this->free = omap_free;
 222
 223         return this;
 224 }
 225
 226 VideoBootStrap omapdss_bootstrap = {
 227         "omapdss", "OMAP DSS2 Framebuffer Driver",
 228         omap_available, omap_create
 229 };
 230