[gpsp.git] / pandora / pnd.c

/* gameplaySP - pandora backend
 *
 * Copyright (C) 2011 notaz <notasas@gmail.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include "../common.h"
#include <X11/keysym.h>
#include "linux/omapfb.h" //
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/ioctl.h>

#include "linux/fbdev.h"
#include "linux/xenv.h"

enum gpsp_key {
  GKEY_UP       = 1 << 0,
  GKEY_LEFT     = 1 << 1,
  GKEY_DOWN     = 1 << 2,
  GKEY_RIGHT    = 1 << 3,
  GKEY_START    = 1 << 4,
  GKEY_SELECT   = 1 << 5,
  GKEY_L        = 1 << 6,
  GKEY_R        = 1 << 7,
  GKEY_A        = 1 << 8,
  GKEY_B        = 1 << 9,
  GKEY_X        = 1 << 10,
  GKEY_Y        = 1 << 11,
  GKEY_1        = 1 << 12,
  GKEY_2        = 1 << 13,
  GKEY_3        = 1 << 14,
  GKEY_4        = 1 << 15,
  GKEY_MENU     = 1 << 16,
};

u32 button_plat_mask_to_config[PLAT_BUTTON_COUNT] =
{
  GKEY_UP,
  GKEY_LEFT,
  GKEY_DOWN,
  GKEY_RIGHT,
  GKEY_START,
  GKEY_SELECT,
  GKEY_L,
  GKEY_R,
  GKEY_A,
  GKEY_B,
  GKEY_X,
  GKEY_Y,
  GKEY_1,
  GKEY_2,
  GKEY_3,
  GKEY_4,
  GKEY_MENU,
};

u32 gamepad_config_map[PLAT_BUTTON_COUNT] =
{
  BUTTON_ID_UP,                 // Up
  BUTTON_ID_LEFT,               // Left
  BUTTON_ID_DOWN,               // Down
  BUTTON_ID_RIGHT,              // Right
  BUTTON_ID_START,              // Start
  BUTTON_ID_SELECT,             // Select
  BUTTON_ID_L,                  // Ltrigger
  BUTTON_ID_R,                  // Rtrigger
  BUTTON_ID_FPS,                // A
  BUTTON_ID_A,                  // B
  BUTTON_ID_B,                  // X
  BUTTON_ID_MENU,               // Y
  BUTTON_ID_SAVESTATE,          // 1
  BUTTON_ID_LOADSTATE,          // 2
  BUTTON_ID_FASTFORWARD,        // 3
  BUTTON_ID_NONE,               // 4
  BUTTON_ID_MENU                // Space
};

static const u32 xk_to_gkey[] = {
  XK_Up, XK_Left, XK_Down, XK_Right, XK_Alt_L, XK_Control_L,
  XK_Shift_R, XK_Control_R, XK_Home, XK_End, XK_Page_Down, XK_Page_Up,
  XK_1, XK_2, XK_3, XK_4, XK_space,
};

static const u8 gkey_to_cursor[32] = {
  [0 ... 31] = CURSOR_NONE,
  [0] = CURSOR_UP, CURSOR_LEFT, CURSOR_DOWN, CURSOR_RIGHT, CURSOR_NONE, CURSOR_NONE,
  CURSOR_L, CURSOR_R, CURSOR_SELECT, CURSOR_SELECT, CURSOR_EXIT, CURSOR_BACK,
};

struct vout_fbdev *fb;

static int omap_setup_layer(int fd, int enabled, int x, int y, int w, int h, int first_call)
{
  struct omapfb_plane_info pi = { 0, };
  struct omapfb_mem_info mi = { 0, };
  int ret;

  ret = ioctl(fd, OMAPFB_QUERY_PLANE, &pi);
  if (ret != 0) {
    perror("QUERY_PLANE");
    return -1;
  }

  ret = ioctl(fd, OMAPFB_QUERY_MEM, &mi);
  if (ret != 0) {
    perror("QUERY_MEM");
    return -1;
  }

  /* must disable when changing stuff */
  if (pi.enabled) {
    pi.enabled = 0;
    ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi);
    if (ret != 0)
      perror("SETUP_PLANE");
  }

  if (first_call) {
    mi.size = 640*512*3*3;
    ret = ioctl(fd, OMAPFB_SETUP_MEM, &mi);
    if (ret != 0) {
      perror("SETUP_MEM");
      return -1;
    }
  }

  pi.pos_x = x;
  pi.pos_y = y;
  pi.out_width = w;
  pi.out_height = h;
  pi.enabled = enabled;

  ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi);
  if (ret != 0) {
    perror("SETUP_PLANE");
    return -1;
  }

  return 0;
}

void gpsp_plat_init(void)
{
  int ret, w, h, fd;
  const char *layer_fb_name;

  ret = SDL_Init(SDL_INIT_AUDIO | SDL_INIT_NOPARACHUTE);
  if (ret != 0) {
    fprintf(stderr, "SDL_Init failed: %s\n", SDL_GetError());
    exit(1);
  }

  layer_fb_name = getenv("FBDEV_LAYER");
  if (layer_fb_name == NULL)
    layer_fb_name = "/dev/fb1";

  ret = xenv_init();
  if (ret != 0) {
    fprintf(stderr, "xenv_init failed with %d\n", ret);
    exit(1);
  }

  // must set the layer up first to be able to use it
  fd = open(layer_fb_name, O_RDWR);
  if (fd == -1) {
    fprintf(stderr, "%s: ", layer_fb_name);
    perror("open");
    exit(1);
  }

  ret = omap_setup_layer(fd, 0, 0, 0, 400, 272, 1);
  close(fd);
  if (ret != 0) {
    fprintf(stderr, "failed to set up layer, exiting.\n");
    exit(1);
  }

  w = 240;
  h = 160;
  fb = vout_fbdev_init("/dev/fb1", &w, &h, 16, 4);
  if (fb == NULL) {
    fprintf(stderr, "vout_fbdev_init failed\n");
    exit(1);
  }

  // default to 3x scale
  screen_scale = 2;
}

void gpsp_plat_quit(void)
{
  xenv_finish();
  omap_setup_layer(vout_fbdev_get_fd(fb), 0, 0, 0, 0, 0, 0);
  vout_fbdev_finish(fb);
  SDL_Quit();
}

u32 gpsp_plat_joystick_read(void)
{
  static int gkeystate;
  int key, is_down, i;
  int gkey = -1;
  
  key = xenv_update(&is_down);
  for (i = 0; i < sizeof(xk_to_gkey) / sizeof(xk_to_gkey[0]); i++) {
    if (key == xk_to_gkey[i]) {
      gkey = i;
      break;
    }
  }

  if (gkey >= 0) {
    if (is_down)
      gkeystate |= 1 << gkey;
    else
      gkeystate &= ~(1 << gkey);
  }
  
  return gkeystate;
}

u32 gpsp_plat_buttons_to_cursor(u32 buttons)
{
  int i;

  if (buttons == 0)
    return CURSOR_NONE;

  for (i = 0; (buttons & 1) == 0; i++, buttons >>= 1)
    ;

  return gkey_to_cursor[i];
}

static void set_filter(int is_filtered)
{
  static int was_filtered = -1;
  char buf[128];

  if (is_filtered == was_filtered)
    return;

  snprintf(buf, sizeof(buf), "sudo -n /usr/pandora/scripts/op_videofir.sh %s",
    is_filtered ? "default" : "none");
  system(buf);
  was_filtered = is_filtered;
}

void *fb_flip_screen(void)
{
  return vout_fbdev_flip(fb);
}

void fb_wait_vsync(void)
{
  vout_fbdev_wait_vsync(fb);
}

void fb_set_mode(int w, int h, int buffers, int scale, int filter)
{
  int lx, ly, lw = w, lh = h;
  switch (scale) {
    case 0:
      lw = w;
      lh = h;
      break;
    case 1:
      lw = w * 2;
      lh = h * 2;
      break;
    case 2:
      lw = w * 3;
      lh = h * 3;
      break;
    case 3:
      lw = 800;
      lh = 480;
      break;
    case 15:
      lw = w * 2;
      lh = h + h /2;
      break;
    default:
      fprintf(stderr, "unknown scale: %d\n", scale);
      break;
  }
  if (lw > 800)
    lw = 800;
  if (lh > 480)
    lh = 480;
  lx = 800 / 2 - lw / 2;
  ly = 480 / 2 - lh / 2;

  omap_setup_layer(vout_fbdev_get_fd(fb), 1, lx, ly, lw, lh, 0);
  set_filter(filter);

  vout_fbdev_resize(fb, w, h, 16, 0, 0, 0, 0, buffers);
}

// vim:shiftwidth=2:expandtab
Commit	Line	Data
eb3668fc	1	/* gameplaySP - pandora backend
	2	*
	3	* Copyright (C) 2011 notaz <notasas@gmail.com>
	4	*
	5	* This program is free software; you can redistribute it and/or
	6	* modify it under the terms of the GNU General Public License as
	7	* published by the Free Software Foundation; either version 2 of
	8	* the License, or (at your option) any later version.
	9	*
	10	* This program is distributed in the hope that it will be useful,
	11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	* General Public License for more details.
	14	*
	15	* You should have received a copy of the GNU General Public License
	16	* along with this program; if not, write to the Free Software
	17	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
	18	*/
	19
	20	#include "../common.h"
	21	#include <X11/keysym.h>
	22	#include "linux/omapfb.h" //
	23	#include <sys/types.h>
	24	#include <sys/stat.h>
	25	#include <fcntl.h>
	26	#include <sys/ioctl.h>
	27
	28	#include "linux/fbdev.h"
	29	#include "linux/xenv.h"
	30
	31	enum gpsp_key {
	32	GKEY_UP = 1 << 0,
	33	GKEY_LEFT = 1 << 1,
	34	GKEY_DOWN = 1 << 2,
	35	GKEY_RIGHT = 1 << 3,
	36	GKEY_START = 1 << 4,
	37	GKEY_SELECT = 1 << 5,
	38	GKEY_L = 1 << 6,
	39	GKEY_R = 1 << 7,
	40	GKEY_A = 1 << 8,
	41	GKEY_B = 1 << 9,
	42	GKEY_X = 1 << 10,
	43	GKEY_Y = 1 << 11,
	44	GKEY_1 = 1 << 12,
	45	GKEY_2 = 1 << 13,
	46	GKEY_3 = 1 << 14,
	47	GKEY_4 = 1 << 15,
	48	GKEY_MENU = 1 << 16,
	49	};
	50
	51	u32 button_plat_mask_to_config[PLAT_BUTTON_COUNT] =
	52	{
	53	GKEY_UP,
	54	GKEY_LEFT,
	55	GKEY_DOWN,
	56	GKEY_RIGHT,
	57	GKEY_START,
	58	GKEY_SELECT,
	59	GKEY_L,
	60	GKEY_R,
	61	GKEY_A,
	62	GKEY_B,
	63	GKEY_X,
	64	GKEY_Y,
65	GKEY_1,
66	GKEY_2,
67	GKEY_3,
68	GKEY_4,
69	GKEY_MENU,
70	};
71
72	u32 gamepad_config_map[PLAT_BUTTON_COUNT] =
73	{
74	BUTTON_ID_UP, // Up
75	BUTTON_ID_LEFT, // Left
76	BUTTON_ID_DOWN, // Down
77	BUTTON_ID_RIGHT, // Right
78	BUTTON_ID_START, // Start
79	BUTTON_ID_SELECT, // Select
80	BUTTON_ID_L, // Ltrigger
81	BUTTON_ID_R, // Rtrigger
82	BUTTON_ID_FPS, // A
83	BUTTON_ID_A, // B
84	BUTTON_ID_B, // X
85	BUTTON_ID_MENU, // Y
86	BUTTON_ID_SAVESTATE, // 1
87	BUTTON_ID_LOADSTATE, // 2
88	BUTTON_ID_FASTFORWARD, // 3
89	BUTTON_ID_NONE, // 4
90	BUTTON_ID_MENU // Space
91	};
92
93	static const u32 xk_to_gkey[] = {
94	XK_Up, XK_Left, XK_Down, XK_Right, XK_Alt_L, XK_Control_L,
931b76c0	95	XK_Shift_R, XK_Control_R, XK_Home, XK_End, XK_Page_Down, XK_Page_Up,
eb3668fc	96	XK_1, XK_2, XK_3, XK_4, XK_space,
	97	};
	98
	99	static const u8 gkey_to_cursor[32] = {
	100	[0 ... 31] = CURSOR_NONE,
	101	[0] = CURSOR_UP, CURSOR_LEFT, CURSOR_DOWN, CURSOR_RIGHT, CURSOR_NONE, CURSOR_NONE,
	102	CURSOR_L, CURSOR_R, CURSOR_SELECT, CURSOR_SELECT, CURSOR_EXIT, CURSOR_BACK,
	103	};
	104
	105	struct vout_fbdev *fb;
	106
	107	static int omap_setup_layer(int fd, int enabled, int x, int y, int w, int h, int first_call)
	108	{
	109	struct omapfb_plane_info pi = { 0, };
	110	struct omapfb_mem_info mi = { 0, };
	111	int ret;
	112
	113	ret = ioctl(fd, OMAPFB_QUERY_PLANE, &pi);
	114	if (ret != 0) {
	115	perror("QUERY_PLANE");
	116	return -1;
	117	}
	118
	119	ret = ioctl(fd, OMAPFB_QUERY_MEM, &mi);
	120	if (ret != 0) {
	121	perror("QUERY_MEM");
	122	return -1;
	123	}
	124
	125	/* must disable when changing stuff */
	126	if (pi.enabled) {
	127	pi.enabled = 0;
	128	ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi);
	129	if (ret != 0)
	130	perror("SETUP_PLANE");
	131	}
	132
	133	if (first_call) {
	134	mi.size = 6405123*3;
	135	ret = ioctl(fd, OMAPFB_SETUP_MEM, &mi);
	136	if (ret != 0) {
	137	perror("SETUP_MEM");
	138	return -1;
	139	}
	140	}
	141
	142	pi.pos_x = x;
	143	pi.pos_y = y;
	144	pi.out_width = w;
	145	pi.out_height = h;
	146	pi.enabled = enabled;
	147
	148	ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi);
	149	if (ret != 0) {
	150	perror("SETUP_PLANE");
	151	return -1;
	152	}
	153
	154	return 0;
	155	}
	156
	157	void gpsp_plat_init(void)
	158	{
	159	int ret, w, h, fd;
160	const char *layer_fb_name;
161
162	ret = SDL_Init(SDL_INIT_AUDIO \| SDL_INIT_NOPARACHUTE);
163	if (ret != 0) {
164	fprintf(stderr, "SDL_Init failed: %s\n", SDL_GetError());
165	exit(1);
166	}
167
168	layer_fb_name = getenv("FBDEV_LAYER");
169	if (layer_fb_name == NULL)
170	layer_fb_name = "/dev/fb1";
171
172	ret = xenv_init();
173	if (ret != 0) {
174	fprintf(stderr, "xenv_init failed with %d\n", ret);
175	exit(1);
176	}
177
178	// must set the layer up first to be able to use it
179	fd = open(layer_fb_name, O_RDWR);
180	if (fd == -1) {
181	fprintf(stderr, "%s: ", layer_fb_name);
182	perror("open");
183	exit(1);
184	}
185
186	ret = omap_setup_layer(fd, 0, 0, 0, 400, 272, 1);
187	close(fd);
188	if (ret != 0) {
189	fprintf(stderr, "failed to set up layer, exiting.\n");
190	exit(1);
191	}
192
193	w = 240;
194	h = 160;
195	fb = vout_fbdev_init("/dev/fb1", &w, &h, 16, 4);
196	if (fb == NULL) {
197	fprintf(stderr, "vout_fbdev_init failed\n");
198	exit(1);
199	}
200
201	// default to 3x scale
202	screen_scale = 2;
203	}
204
205	void gpsp_plat_quit(void)
206	{
207	xenv_finish();
208	omap_setup_layer(vout_fbdev_get_fd(fb), 0, 0, 0, 0, 0, 0);
209	vout_fbdev_finish(fb);
210	SDL_Quit();
211	}
212
213	u32 gpsp_plat_joystick_read(void)
214	{
215	static int gkeystate;
216	int key, is_down, i;
217	int gkey = -1;
218
219	key = xenv_update(&is_down);
220	for (i = 0; i < sizeof(xk_to_gkey) / sizeof(xk_to_gkey[0]); i++) {
221	if (key == xk_to_gkey[i]) {
222	gkey = i;
223	break;
224	}
225	}
226
227	if (gkey >= 0) {
228	if (is_down)
229	gkeystate \|= 1 << gkey;
230	else
231	gkeystate &= ~(1 << gkey);
232	}
233
234	return gkeystate;
235	}
236
237	u32 gpsp_plat_buttons_to_cursor(u32 buttons)
238	{
239	int i;
240
241	if (buttons == 0)
242	return CURSOR_NONE;
243
244	for (i = 0; (buttons & 1) == 0; i++, buttons >>= 1)
245	;
246
247	return gkey_to_cursor[i];
248	}
249
250	static void set_filter(int is_filtered)
251	{
252	static int was_filtered = -1;
253	char buf[128];
254
255	if (is_filtered == was_filtered)
256	return;
257
258	snprintf(buf, sizeof(buf), "sudo -n /usr/pandora/scripts/op_videofir.sh %s",
259	is_filtered ? "default" : "none");
260	system(buf);
261	was_filtered = is_filtered;
262	}
263
264	void *fb_flip_screen(void)
265	{
266	return vout_fbdev_flip(fb);
267	}
268
269	void fb_wait_vsync(void)
270	{
271	vout_fbdev_wait_vsync(fb);
272	}
273
274	void fb_set_mode(int w, int h, int buffers, int scale, int filter)
275	{
276	int lx, ly, lw = w, lh = h;
277	switch (scale) {
278	case 0:
279	lw = w;
280	lh = h;
281	break;
282	case 1:
283	lw = w * 2;
284	lh = h * 2;
285	break;
286	case 2:
287	lw = w * 3;
288	lh = h * 3;
289	break;
290	case 3:
291	lw = 800;
292	lh = 480;
293	break;
294	case 15:
295	lw = w * 2;
296	lh = h + h /2;
297	break;
298	default:
299	fprintf(stderr, "unknown scale: %d\n", scale);
300	break;
301	}
302	if (lw > 800)
303	lw = 800;
304	if (lh > 480)
305	lh = 480;
306	lx = 800 / 2 - lw / 2;
307	ly = 480 / 2 - lh / 2;
308
309	omap_setup_layer(vout_fbdev_get_fd(fb), 1, lx, ly, lw, lh, 0);
310	set_filter(filter);
311
312	vout_fbdev_resize(fb, w, h, 16, 0, 0, 0, 0, buffers);
313	}
314
315	// vim:shiftwidth=2:expandtab