[sdl_omap.git] / src / video / omapdss / sdlif.c

/*
 * (C) Gražvydas "notaz" Ignotas, 2010-2012
 *
 * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
 * See the COPYING file in the top-level directory.
 */

#include <stdio.h>
#include <stdlib.h>
#include <X11/XF86keysym.h>

#include "../SDL_sysvideo.h"
#include "../SDL_pixels_c.h"
#include "../../events/SDL_events_c.h"

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


static int omap_available(void) 
{
	trace();
	return 1;
}

static void omap_free(SDL_VideoDevice *device)
{
	trace();
	free(device);
}

static int omap_VideoInit(SDL_VideoDevice *this, SDL_PixelFormat *vformat)
{
	const char *tmp;
	int w, h, ret;

	trace();

	// default to 16bpp
	vformat->BitsPerPixel = 16;

	omapsdl_input_init();
	omapsdl_config(this->hidden);

	tmp = getenv("SDL_OMAP_DEFAULT_MODE");
	if (tmp != NULL && sscanf(tmp, "%dx%d", &w, &h) == 2) {
		this->info.current_w = w;
		this->info.current_h = h;
	}
	else if (osdl_video_detect_screen(this->hidden) == 0) {
		this->info.current_w = this->hidden->phys_w;
		this->info.current_h = this->hidden->phys_h;
	}

	this->handles_any_size = 1;
	this->info.hw_available = 1;

	return 0;
}

static void omap_VideoQuit(SDL_VideoDevice *this)
{
	trace();

	osdl_video_finish(this->hidden);
	this->screen->pixels = NULL;
	omapsdl_input_finish();
}

static SDL_Rect **omap_ListModes(SDL_VideoDevice *this, SDL_PixelFormat *format, Uint32 flags)
{
	static SDL_Rect omap_mode_max = {
		/* with handles_any_size, should accept anything up to this
		 * XXX: possibly set this dynamically based on free vram? */
		0, 0, 1600, 1200
	};
	/* broken API needs this stupidity */
	static SDL_Rect *omap_modes[] = {
		&omap_mode_max,
		NULL
	};

	trace();

	if (format->BitsPerPixel <= 8)
		// not (yet?) supported
		return NULL;

	return omap_modes;
}

static SDL_Surface *omap_SetVideoMode(SDL_VideoDevice *this, SDL_Surface *current, int width,
					int height, int bpp, Uint32 flags)
{
	struct SDL_PrivateVideoData *pdata = this->hidden;
	SDL_PixelFormat *format;
	Uint32 unhandled_flags;
	int doublebuf;
	void *fbmem;

	trace("%d, %d, %d, %08x", width, height, bpp, flags);

	omapsdl_config_from_env(pdata);

	switch (bpp) {
	case 16:
		format = SDL_ReallocFormat(current, 16, 0xf800, 0x07e0, 0x001f, 0);
		break;
	case 24:
		format = SDL_ReallocFormat(current, 24, 0xff0000, 0xff00, 0xff, 0);
		break;
	case 32:
		format = SDL_ReallocFormat(current, 32, 0xff0000, 0xff00, 0xff, 0);
		break;
	default:
		err("SetVideoMode: bpp %d not supported", bpp);
		return NULL;
	}
	if (format == NULL)
		return NULL;

	if (!(flags & SDL_DOUBLEBUF) && pdata->cfg_force_doublebuf) {
		log("forcing SDL_DOUBLEBUF");
		flags |= SDL_DOUBLEBUF;
	}

	if (pdata->border_l | pdata->border_r | pdata->border_t | pdata->border_b) {
		if (pdata->border_l + pdata->border_r >= width
		    || pdata->border_t + pdata->border_b >= height)
		{
			err("specified border too large, ignoring");
			pdata->border_l = pdata->border_r = pdata->border_t = pdata->border_b = 0;
		}
	}

	/* always use doublebuf, when SDL_DOUBLEBUF is not set,
	 * we'll have to blit manually on UpdateRects() */
	doublebuf = 1;

	fbmem = osdl_video_set_mode(pdata,
		pdata->border_l, pdata->border_r, pdata->border_t, pdata->border_b,
		width, height, bpp, &doublebuf, this->wm_title);
	if (fbmem == NULL) {
		err("failing on mode %dx%d@%d, doublebuf %s, border %d,%d,%d,%d",
		    width, height, bpp, (flags & SDL_DOUBLEBUF) ? "on" : "off",
		    pdata->border_l, pdata->border_r, pdata->border_t, pdata->border_b);
		return NULL;
	}
	pdata->front_buffer = osdl_video_get_active_buffer(pdata);
	if (pdata->front_buffer == NULL) {
		err("osdl_video_get_active_buffer failed\n");
		return NULL;
	}

	if (!doublebuf) {
		if (flags & SDL_DOUBLEBUF) {
			log("doublebuffering could not be set\n");
			flags &= ~SDL_DOUBLEBUF;
		}
		/* XXX: could just malloc a back buffer here instead */
		pdata->cfg_force_directbuf = 1;
	}

	if (!(flags & SDL_DOUBLEBUF) && pdata->cfg_force_directbuf)
		fbmem = pdata->front_buffer;

	flags |= SDL_FULLSCREEN | SDL_HWSURFACE;
	unhandled_flags = flags & ~(SDL_FULLSCREEN | SDL_HWSURFACE | SDL_DOUBLEBUF);
	if (unhandled_flags != 0) {
		log("dropping unhandled flags: %08x", unhandled_flags);
		flags &= ~unhandled_flags;
	}

	current->flags = flags;
	current->w = width;
	current->h = height;
	current->pitch = SDL_CalculatePitch(current);
	current->pixels = fbmem;
	pdata->app_uses_flip = 0;

	if (pdata->layer_w != 0 && pdata->layer_h != 0) {
		int v_width  = width  - (pdata->border_l + pdata->border_r);
		int v_height = height - (pdata->border_t + pdata->border_b);
		pdata->ts_xmul = (v_width  << 16) / pdata->layer_w;
		pdata->ts_ymul = (v_height << 16) / pdata->layer_h;
	}

	return current;
}

static int omap_LockHWSurface(SDL_VideoDevice *this, SDL_Surface *surface)
{
	trace("%p", surface);

	return 0;
}

static void omap_UnlockHWSurface(SDL_VideoDevice *this, SDL_Surface *surface)
{
	trace("%p", surface);
}

static int omap_FlipHWSurface(SDL_VideoDevice *this, SDL_Surface *surface)
{
	struct SDL_PrivateVideoData *pdata = this->hidden;
	static int warned;

	trace("%p", surface);

	if (surface != this->screen) {
		if (!warned) {
			err("flip surface %p which is not screen %p?\n",
				surface, this->screen);
			warned = 1;
		}
		return;
	}

	if (surface->flags & SDL_DOUBLEBUF)
		surface->pixels = osdl_video_flip(pdata);
	else {
		if (surface->pixels != pdata->front_buffer)
			memcpy(surface->pixels, pdata->front_buffer,
				surface->pitch * surface->h);
	}

	pdata->app_uses_flip = 1;

	return 0;
}

/* we can't do hw surfaces (besides screen one) yet */
static int omap_AllocHWSurface(SDL_VideoDevice *this, SDL_Surface *surface)
{
	trace("%p", surface);
	return -1;
}

static void omap_FreeHWSurface(SDL_VideoDevice *this, SDL_Surface *surface)
{
	trace("%p", surface);
}

static int omap_SetColors(SDL_VideoDevice *this, int firstcolor, int ncolors, SDL_Color *colors)
{
	trace("%d, %d, %p", firstcolor, ncolors, colors);
	return 0;
}

static void omap_UpdateRects(SDL_VideoDevice *this, int nrects, SDL_Rect *rects)
{
	struct SDL_PrivateVideoData *pdata = this->hidden;
	SDL_Surface *screen = this->screen;
	int fullscreen_blit = 0;
	int i, Bpp, x, y, w, h;
	char *src, *dst;

	trace("%d, %p", nrects, rects);

	fullscreen_blit =
		nrects == 1 && rects->x == 0 && rects->y == 0
		    && (rects->w == screen->w || rects->w == 0)
		    && (rects->h == screen->h || rects->h == 0);

	if (screen->flags & SDL_DOUBLEBUF) {
		if (fullscreen_blit && !pdata->app_uses_flip)
			screen->pixels = osdl_video_flip(pdata);
		return;
	}

	src = screen->pixels;
	dst = pdata->front_buffer;
	if (src == dst)
		return;

	if (fullscreen_blit) {
		memcpy(dst, src, screen->pitch * screen->h);
		return;
	}

	for (i = 0, Bpp = screen->format->BytesPerPixel; i < nrects; i++) {
		/* this supposedly has no clipping, but we'll do it anyway */
		x = rects[i].x, y = rects[i].y, w = rects[i].w, h = rects[i].h;
		if (x < 0)
			w += x, x = 0;
		else if (x + w > screen->w)
			w = screen->w - x;
		if (w <= 0)
			continue;

		if (y < 0)
			h += y, y = 0;
		else if (y + h > screen->h)
			h = screen->h - y;

		for (; h > 0; y++, h--)
			memcpy(dst + y * screen->pitch + x * Bpp,
			       src + y * screen->pitch + x * Bpp,
			       w * Bpp);
	}
}

static void omap_InitOSKeymap(SDL_VideoDevice *this)
{
	trace();
}

static int key_event_cb(void *cb_arg, int sdl_kc, int sdl_sc, int is_pressed)
{
	SDL_keysym keysym = { 0, };
	int shift = 0;
	SDLMod mod;
	int ret;

	keysym.sym = sdl_kc;
	keysym.scancode = sdl_sc;

	/* 0xff if pandora's Fn, so we exclude it too.. */
	if (is_pressed && sdl_kc < 0xff && SDL_TranslateUNICODE) {
		mod = SDL_GetModState();
		if (!(mod & KMOD_CTRL) && (!!(mod & KMOD_SHIFT) ^ !!(mod & KMOD_CAPS)))
			shift = 1;

		/* prefer X mapping, if that doesn't work use hardcoded one */
		ret = xenv_keycode_to_keysym(sdl_sc, shift);
		if (ret >= 0) {
			keysym.unicode = ret;
			if ((mod & KMOD_CTRL)
			    && 0x60 <= keysym.unicode && keysym.unicode <= 0x7f)
			{
				keysym.unicode -= 0x60;
			}
			/* hmh.. */
			if ((keysym.unicode & 0xff00) == 0xff00)
				keysym.unicode &= ~0xff00;
		}
		else {
			keysym.unicode = sdl_kc;
			if ((mod & KMOD_CTRL) && 0x60 <= sdl_kc && sdl_kc <= 0x7f)
			{
				keysym.unicode = sdl_kc - 0x60;
			}
			else if (shift && 'a' <= sdl_kc && sdl_kc <= 'z')
			{
				keysym.unicode = sdl_kc - 'a' + 'A';
			}
		}
	}

	SDL_PrivateKeyboard(is_pressed, &keysym);
}

/* clamp x to min..max-1 */
#define clamp(x, min, max) \
	if (x < (min)) x = min; \
	if (x >= (max)) x = max

static void translate_mouse(SDL_VideoDevice *this, int *x, int *y)
{
	struct SDL_PrivateVideoData *pdata = this->hidden;

	if (!pdata->cfg_no_ts_translate && pdata->layer_w != 0 && pdata->layer_h != 0) {
		*x = pdata->border_l + ((*x - pdata->layer_x) * pdata->ts_xmul >> 16);
		*y = pdata->border_t + ((*y - pdata->layer_y) * pdata->ts_ymul >> 16);
		clamp(*x, 0, this->screen->w);
		clamp(*y, 0, this->screen->h);
	}
}

static int ts_event_cb(void *cb_arg, int x, int y, unsigned int pressure)
{
	static int was_pressed;
	SDL_VideoDevice *this = cb_arg;
	struct SDL_PrivateVideoData *pdata = this->hidden;

	translate_mouse(this, &x, &y);

	pressure = !!pressure;
	if (pressure != was_pressed) {
		SDL_PrivateMouseButton(pressure ? SDL_PRESSED : SDL_RELEASED, 1, x, y);
		was_pressed = pressure;
	}
	else
		SDL_PrivateMouseMotion(0, 0, x, y);
}

static int xmouseb_event_cb(void *cb_arg, int x, int y, int button, int is_pressed)
{
	SDL_VideoDevice *this = cb_arg;
	struct SDL_PrivateVideoData *pdata = this->hidden;

	translate_mouse(this, &x, &y);
	SDL_PrivateMouseButton(is_pressed ? SDL_PRESSED : SDL_RELEASED, button, x, y);
}

static int xmousem_event_cb(void *cb_arg, int x, int y)
{
	SDL_VideoDevice *this = cb_arg;
	struct SDL_PrivateVideoData *pdata = this->hidden;

	translate_mouse(this, &x, &y);
	SDL_PrivateMouseMotion(0, 0, x, y);
}

static int xkey_cb(void *cb_arg, int kc, int is_pressed)
{
	SDL_VideoDevice *this = cb_arg;
	struct SDL_PrivateVideoData *pdata = this->hidden;
	int ret;

	if (kc == XF86XK_MenuKB && is_pressed) {
		ret = osdl_video_pause(pdata, 1);
		if (ret == 0) {
			xenv_minimize();
			osdl_video_pause(pdata, 0);
			omapsdl_input_get_events(0, NULL, NULL, NULL);
		}
	}
}

static void omap_PumpEvents(SDL_VideoDevice *this) 
{
	struct SDL_PrivateVideoData *pdata = this->hidden;
	int read_tslib = 1;

	trace();

	if (pdata->xenv_up) {
		if (!pdata->cfg_ts_force_tslib) {
			xenv_update(xkey_cb, xmouseb_event_cb, xmousem_event_cb, this);
			if (pdata->xenv_mouse)
				read_tslib = 0;
		}
		else {
			/* just flush X event queue */
			xenv_update(NULL, NULL, NULL, NULL);
		}
	}

	omapsdl_input_get_events(0, key_event_cb,
		read_tslib ? ts_event_cb : NULL, this);
}

static SDL_VideoDevice *omap_create(int devindex)
{
	SDL_VideoDevice *this;

	this = calloc(1, sizeof(*this) + sizeof(*this->hidden));
	if (this == NULL) {
		SDL_OutOfMemory();
		return 0;
	}
	this->hidden = (void *)(this + 1);
	this->VideoInit = omap_VideoInit;
	this->ListModes = omap_ListModes;
	this->SetVideoMode = omap_SetVideoMode;
	this->LockHWSurface = omap_LockHWSurface;
	this->UnlockHWSurface = omap_UnlockHWSurface;
	this->FlipHWSurface = omap_FlipHWSurface;
	this->AllocHWSurface = omap_AllocHWSurface;
	this->FreeHWSurface = omap_FreeHWSurface;
	this->SetColors = omap_SetColors;
	this->UpdateRects = omap_UpdateRects;
	this->VideoQuit = omap_VideoQuit;
	this->InitOSKeymap = omap_InitOSKeymap;
	this->PumpEvents = omap_PumpEvents;
	this->free = omap_free;

	return this;
}

VideoBootStrap omapdss_bootstrap = {
	"omapdss", "OMAP DSS2 Framebuffer Driver",
	omap_available, omap_create
};
Commit	Line	Data
	1	/*
	2	* (C) Gražvydas "notaz" Ignotas, 2010-2012
	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	#include <X11/XF86keysym.h>
	11
	12	#include "../SDL_sysvideo.h"
	13	#include "../SDL_pixels_c.h"
	14	#include "../../events/SDL_events_c.h"
	15
	16	#include "linux/xenv.h"
	17	#include "osdl.h"
	18
	19
	20	static int omap_available(void)
	21	{
	22	trace();
	23	return 1;
	24	}
	25
	26	static void omap_free(SDL_VideoDevice *device)
	27	{
	28	trace();
	29	free(device);
	30	}
	31
	32	static int omap_VideoInit(SDL_VideoDevice this, SDL_PixelFormat vformat)
	33	{
	34	const char *tmp;
	35	int w, h, ret;
	36
	37	trace();
	38
	39	// default to 16bpp
	40	vformat->BitsPerPixel = 16;
	41
	42	omapsdl_input_init();
	43	omapsdl_config(this->hidden);
	44
	45	tmp = getenv("SDL_OMAP_DEFAULT_MODE");
	46	if (tmp != NULL && sscanf(tmp, "%dx%d", &w, &h) == 2) {
	47	this->info.current_w = w;
	48	this->info.current_h = h;
	49	}
	50	else if (osdl_video_detect_screen(this->hidden) == 0) {
	51	this->info.current_w = this->hidden->phys_w;
	52	this->info.current_h = this->hidden->phys_h;
	53	}
	54
	55	this->handles_any_size = 1;
	56	this->info.hw_available = 1;
	57
	58	return 0;
	59	}
	60
	61	static void omap_VideoQuit(SDL_VideoDevice *this)
	62	{
	63	trace();
	64
	65	osdl_video_finish(this->hidden);
	66	this->screen->pixels = NULL;
	67	omapsdl_input_finish();
	68	}
	69
	70	static SDL_Rect *omap_ListModes(SDL_VideoDevice this, SDL_PixelFormat *format, Uint32 flags)
	71	{
	72	static SDL_Rect omap_mode_max = {
	73	/* with handles_any_size, should accept anything up to this
	74	* XXX: possibly set this dynamically based on free vram? */
	75	0, 0, 1600, 1200
	76	};
	77	/* broken API needs this stupidity */
	78	static SDL_Rect *omap_modes[] = {
	79	&omap_mode_max,
	80	NULL
	81	};
	82
	83	trace();
	84
	85	if (format->BitsPerPixel <= 8)
	86	// not (yet?) supported
	87	return NULL;
	88
	89	return omap_modes;
	90	}
	91
	92	static SDL_Surface omap_SetVideoMode(SDL_VideoDevice this, SDL_Surface *current, int width,
	93	int height, int bpp, Uint32 flags)
	94	{
	95	struct SDL_PrivateVideoData *pdata = this->hidden;
	96	SDL_PixelFormat *format;
	97	Uint32 unhandled_flags;
	98	int doublebuf;
	99	void *fbmem;
	100
	101	trace("%d, %d, %d, %08x", width, height, bpp, flags);
	102
	103	omapsdl_config_from_env(pdata);
	104
	105	switch (bpp) {
	106	case 16:
	107	format = SDL_ReallocFormat(current, 16, 0xf800, 0x07e0, 0x001f, 0);
	108	break;
	109	case 24:
	110	format = SDL_ReallocFormat(current, 24, 0xff0000, 0xff00, 0xff, 0);
	111	break;
	112	case 32:
	113	format = SDL_ReallocFormat(current, 32, 0xff0000, 0xff00, 0xff, 0);
	114	break;
	115	default:
	116	err("SetVideoMode: bpp %d not supported", bpp);
	117	return NULL;
	118	}
	119	if (format == NULL)
	120	return NULL;
	121
	122	if (!(flags & SDL_DOUBLEBUF) && pdata->cfg_force_doublebuf) {
	123	log("forcing SDL_DOUBLEBUF");
	124	flags \|= SDL_DOUBLEBUF;
	125	}
	126
	127	if (pdata->border_l \| pdata->border_r \| pdata->border_t \| pdata->border_b) {
	128	if (pdata->border_l + pdata->border_r >= width
	129	\|\| pdata->border_t + pdata->border_b >= height)
	130	{
	131	err("specified border too large, ignoring");
	132	pdata->border_l = pdata->border_r = pdata->border_t = pdata->border_b = 0;
	133	}
	134	}
	135
	136	/* always use doublebuf, when SDL_DOUBLEBUF is not set,
	137	* we'll have to blit manually on UpdateRects() */
	138	doublebuf = 1;
	139
	140	fbmem = osdl_video_set_mode(pdata,
	141	pdata->border_l, pdata->border_r, pdata->border_t, pdata->border_b,
	142	width, height, bpp, &doublebuf, this->wm_title);
	143	if (fbmem == NULL) {
	144	err("failing on mode %dx%d@%d, doublebuf %s, border %d,%d,%d,%d",
	145	width, height, bpp, (flags & SDL_DOUBLEBUF) ? "on" : "off",
	146	pdata->border_l, pdata->border_r, pdata->border_t, pdata->border_b);
	147	return NULL;
	148	}
	149	pdata->front_buffer = osdl_video_get_active_buffer(pdata);
	150	if (pdata->front_buffer == NULL) {
	151	err("osdl_video_get_active_buffer failed\n");
	152	return NULL;
	153	}
	154
	155	if (!doublebuf) {
	156	if (flags & SDL_DOUBLEBUF) {
	157	log("doublebuffering could not be set\n");
	158	flags &= ~SDL_DOUBLEBUF;
	159	}
	160	/* XXX: could just malloc a back buffer here instead */
	161	pdata->cfg_force_directbuf = 1;
	162	}
	163
	164	if (!(flags & SDL_DOUBLEBUF) && pdata->cfg_force_directbuf)
	165	fbmem = pdata->front_buffer;
	166
	167	flags \|= SDL_FULLSCREEN \| SDL_HWSURFACE;
	168	unhandled_flags = flags & ~(SDL_FULLSCREEN \| SDL_HWSURFACE \| SDL_DOUBLEBUF);
	169	if (unhandled_flags != 0) {
	170	log("dropping unhandled flags: %08x", unhandled_flags);
	171	flags &= ~unhandled_flags;
	172	}
	173
	174	current->flags = flags;
	175	current->w = width;
	176	current->h = height;
	177	current->pitch = SDL_CalculatePitch(current);
	178	current->pixels = fbmem;
	179	pdata->app_uses_flip = 0;
	180
	181	if (pdata->layer_w != 0 && pdata->layer_h != 0) {
	182	int v_width = width - (pdata->border_l + pdata->border_r);
	183	int v_height = height - (pdata->border_t + pdata->border_b);
	184	pdata->ts_xmul = (v_width << 16) / pdata->layer_w;
	185	pdata->ts_ymul = (v_height << 16) / pdata->layer_h;
	186	}
	187
	188	return current;
	189	}
	190
	191	static int omap_LockHWSurface(SDL_VideoDevice this, SDL_Surface surface)
	192	{
	193	trace("%p", surface);
	194
	195	return 0;
	196	}
	197
	198	static void omap_UnlockHWSurface(SDL_VideoDevice this, SDL_Surface surface)
	199	{
	200	trace("%p", surface);
	201	}
	202
	203	static int omap_FlipHWSurface(SDL_VideoDevice this, SDL_Surface surface)
	204	{
	205	struct SDL_PrivateVideoData *pdata = this->hidden;
	206	static int warned;
	207
	208	trace("%p", surface);
	209
	210	if (surface != this->screen) {
	211	if (!warned) {
	212	err("flip surface %p which is not screen %p?\n",
	213	surface, this->screen);
	214	warned = 1;
	215	}
	216	return;
	217	}
	218
	219	if (surface->flags & SDL_DOUBLEBUF)
	220	surface->pixels = osdl_video_flip(pdata);
	221	else {
	222	if (surface->pixels != pdata->front_buffer)
	223	memcpy(surface->pixels, pdata->front_buffer,
	224	surface->pitch * surface->h);
	225	}
	226
	227	pdata->app_uses_flip = 1;
	228
	229	return 0;
	230	}
	231
	232	/* we can't do hw surfaces (besides screen one) yet */
	233	static int omap_AllocHWSurface(SDL_VideoDevice this, SDL_Surface surface)
	234	{
	235	trace("%p", surface);
	236	return -1;
	237	}
	238
	239	static void omap_FreeHWSurface(SDL_VideoDevice this, SDL_Surface surface)
	240	{
	241	trace("%p", surface);
	242	}
	243
	244	static int omap_SetColors(SDL_VideoDevice this, int firstcolor, int ncolors, SDL_Color colors)
	245	{
	246	trace("%d, %d, %p", firstcolor, ncolors, colors);
	247	return 0;
	248	}
	249
	250	static void omap_UpdateRects(SDL_VideoDevice this, int nrects, SDL_Rect rects)
	251	{
	252	struct SDL_PrivateVideoData *pdata = this->hidden;
	253	SDL_Surface *screen = this->screen;
	254	int fullscreen_blit = 0;
	255	int i, Bpp, x, y, w, h;
	256	char src, dst;
	257
	258	trace("%d, %p", nrects, rects);
	259
	260	fullscreen_blit =
	261	nrects == 1 && rects->x == 0 && rects->y == 0
	262	&& (rects->w == screen->w \|\| rects->w == 0)
	263	&& (rects->h == screen->h \|\| rects->h == 0);
	264
	265	if (screen->flags & SDL_DOUBLEBUF) {
	266	if (fullscreen_blit && !pdata->app_uses_flip)
	267	screen->pixels = osdl_video_flip(pdata);
	268	return;
	269	}
	270
	271	src = screen->pixels;
	272	dst = pdata->front_buffer;
	273	if (src == dst)
	274	return;
	275
	276	if (fullscreen_blit) {
	277	memcpy(dst, src, screen->pitch * screen->h);
	278	return;
	279	}
	280
	281	for (i = 0, Bpp = screen->format->BytesPerPixel; i < nrects; i++) {
	282	/* this supposedly has no clipping, but we'll do it anyway */
	283	x = rects[i].x, y = rects[i].y, w = rects[i].w, h = rects[i].h;
	284	if (x < 0)
	285	w += x, x = 0;
	286	else if (x + w > screen->w)
	287	w = screen->w - x;
	288	if (w <= 0)
	289	continue;
	290
	291	if (y < 0)
	292	h += y, y = 0;
	293	else if (y + h > screen->h)
	294	h = screen->h - y;
	295
	296	for (; h > 0; y++, h--)
	297	memcpy(dst + y * screen->pitch + x * Bpp,
	298	src + y * screen->pitch + x * Bpp,
	299	w * Bpp);
	300	}
	301	}
	302
	303	static void omap_InitOSKeymap(SDL_VideoDevice *this)
	304	{
	305	trace();
	306	}
	307
	308	static int key_event_cb(void *cb_arg, int sdl_kc, int sdl_sc, int is_pressed)
	309	{
	310	SDL_keysym keysym = { 0, };
	311	int shift = 0;
	312	SDLMod mod;
	313	int ret;
	314
	315	keysym.sym = sdl_kc;
	316	keysym.scancode = sdl_sc;
	317
	318	/* 0xff if pandora's Fn, so we exclude it too.. */
	319	if (is_pressed && sdl_kc < 0xff && SDL_TranslateUNICODE) {
	320	mod = SDL_GetModState();
	321	if (!(mod & KMOD_CTRL) && (!!(mod & KMOD_SHIFT) ^ !!(mod & KMOD_CAPS)))
	322	shift = 1;
	323
	324	/* prefer X mapping, if that doesn't work use hardcoded one */
	325	ret = xenv_keycode_to_keysym(sdl_sc, shift);
	326	if (ret >= 0) {
	327	keysym.unicode = ret;
	328	if ((mod & KMOD_CTRL)
	329	&& 0x60 <= keysym.unicode && keysym.unicode <= 0x7f)
	330	{
	331	keysym.unicode -= 0x60;
	332	}
	333	/* hmh.. */
	334	if ((keysym.unicode & 0xff00) == 0xff00)
	335	keysym.unicode &= ~0xff00;
	336	}
	337	else {
	338	keysym.unicode = sdl_kc;
	339	if ((mod & KMOD_CTRL) && 0x60 <= sdl_kc && sdl_kc <= 0x7f)
	340	{
	341	keysym.unicode = sdl_kc - 0x60;
	342	}
	343	else if (shift && 'a' <= sdl_kc && sdl_kc <= 'z')
	344	{
	345	keysym.unicode = sdl_kc - 'a' + 'A';
	346	}
	347	}
	348	}
	349
	350	SDL_PrivateKeyboard(is_pressed, &keysym);
	351	}
	352
	353	/* clamp x to min..max-1 */
	354	#define clamp(x, min, max) \
	355	if (x < (min)) x = min; \
	356	if (x >= (max)) x = max
	357
	358	static void translate_mouse(SDL_VideoDevice this, int x, int *y)
	359	{
	360	struct SDL_PrivateVideoData *pdata = this->hidden;
	361
	362	if (!pdata->cfg_no_ts_translate && pdata->layer_w != 0 && pdata->layer_h != 0) {
	363	x = pdata->border_l + ((x - pdata->layer_x) * pdata->ts_xmul >> 16);
	364	y = pdata->border_t + ((y - pdata->layer_y) * pdata->ts_ymul >> 16);
	365	clamp(*x, 0, this->screen->w);
	366	clamp(*y, 0, this->screen->h);
	367	}
	368	}
	369
	370	static int ts_event_cb(void *cb_arg, int x, int y, unsigned int pressure)
	371	{
	372	static int was_pressed;
	373	SDL_VideoDevice *this = cb_arg;
	374	struct SDL_PrivateVideoData *pdata = this->hidden;
	375
	376	translate_mouse(this, &x, &y);
	377
	378	pressure = !!pressure;
	379	if (pressure != was_pressed) {
	380	SDL_PrivateMouseButton(pressure ? SDL_PRESSED : SDL_RELEASED, 1, x, y);
	381	was_pressed = pressure;
	382	}
	383	else
	384	SDL_PrivateMouseMotion(0, 0, x, y);
	385	}
	386
	387	static int xmouseb_event_cb(void *cb_arg, int x, int y, int button, int is_pressed)
	388	{
	389	SDL_VideoDevice *this = cb_arg;
	390	struct SDL_PrivateVideoData *pdata = this->hidden;
	391
	392	translate_mouse(this, &x, &y);
	393	SDL_PrivateMouseButton(is_pressed ? SDL_PRESSED : SDL_RELEASED, button, x, y);
	394	}
	395
	396	static int xmousem_event_cb(void *cb_arg, int x, int y)
	397	{
	398	SDL_VideoDevice *this = cb_arg;
	399	struct SDL_PrivateVideoData *pdata = this->hidden;
	400
	401	translate_mouse(this, &x, &y);
	402	SDL_PrivateMouseMotion(0, 0, x, y);
	403	}
	404
	405	static int xkey_cb(void *cb_arg, int kc, int is_pressed)
	406	{
	407	SDL_VideoDevice *this = cb_arg;
	408	struct SDL_PrivateVideoData *pdata = this->hidden;
	409	int ret;
	410
	411	if (kc == XF86XK_MenuKB && is_pressed) {
	412	ret = osdl_video_pause(pdata, 1);
	413	if (ret == 0) {
	414	xenv_minimize();
	415	osdl_video_pause(pdata, 0);
	416	omapsdl_input_get_events(0, NULL, NULL, NULL);
	417	}
	418	}
	419	}
	420
	421	static void omap_PumpEvents(SDL_VideoDevice *this)
	422	{
	423	struct SDL_PrivateVideoData *pdata = this->hidden;
	424	int read_tslib = 1;
	425
	426	trace();
	427
	428	if (pdata->xenv_up) {
	429	if (!pdata->cfg_ts_force_tslib) {
	430	xenv_update(xkey_cb, xmouseb_event_cb, xmousem_event_cb, this);
	431	if (pdata->xenv_mouse)
	432	read_tslib = 0;
	433	}
	434	else {
	435	/* just flush X event queue */
	436	xenv_update(NULL, NULL, NULL, NULL);
	437	}
	438	}
	439
	440	omapsdl_input_get_events(0, key_event_cb,
	441	read_tslib ? ts_event_cb : NULL, this);
	442	}
	443
	444	static SDL_VideoDevice *omap_create(int devindex)
	445	{
	446	SDL_VideoDevice *this;
	447
	448	this = calloc(1, sizeof(this) + sizeof(this->hidden));
	449	if (this == NULL) {
	450	SDL_OutOfMemory();
	451	return 0;
	452	}
	453	this->hidden = (void *)(this + 1);
	454	this->VideoInit = omap_VideoInit;
	455	this->ListModes = omap_ListModes;
	456	this->SetVideoMode = omap_SetVideoMode;
	457	this->LockHWSurface = omap_LockHWSurface;
	458	this->UnlockHWSurface = omap_UnlockHWSurface;
	459	this->FlipHWSurface = omap_FlipHWSurface;
	460	this->AllocHWSurface = omap_AllocHWSurface;
	461	this->FreeHWSurface = omap_FreeHWSurface;
	462	this->SetColors = omap_SetColors;
	463	this->UpdateRects = omap_UpdateRects;
	464	this->VideoQuit = omap_VideoQuit;
	465	this->InitOSKeymap = omap_InitOSKeymap;
	466	this->PumpEvents = omap_PumpEvents;
	467	this->free = omap_free;
	468
	469	return this;
	470	}
	471
	472	VideoBootStrap omapdss_bootstrap = {
	473	"omapdss", "OMAP DSS2 Framebuffer Driver",
	474	omap_available, omap_create
	475	};
	476