src/xpm/simx.c

/*
 * Copyright (C) 1989-95 GROUPE BULL
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
 * deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 * sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * GROUPE BULL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 * Except as contained in this notice, the name of GROUPE BULL shall not be
 * used in advertising or otherwise to promote the sale, use or other dealings
 * in this Software without prior written authorization from GROUPE BULL.
 */

/*****************************************************************************\
* simx.c: 0.1a                                                                *
*                                                                             *
* This emulates some Xlib functionality for MSW. It's not a general solution, *
* it is close related to XPM-lib. It is only intended to satisfy what is need *
* there. Thus allowing to read XPM files under MS windows.                    *
*                                                                             *
* Developed by HeDu 3/94 (hedu@cul-ipn.uni-kiel.de)                           *
\*****************************************************************************/

/* Moved here so that FOR_MSW gets defined if we are using wxWindows (GRG) */
#include "xpm.h"

#ifdef FOR_MSW

#include "xpmi.h"			/* for XpmMalloc */

/*
 * On DOS size_t is only 2 bytes, thus malloc(size_t s) can only malloc
 * 64K. BUT an expression data=malloc(width*height) may result in an
 * overflow. So this function takes a long as input, and returns NULL if the
 * request is larger than 64K, is size_t is only 2 bytes.
 *
 * This requires casts like XpmMalloc( (long)width*(long(height)), else it
 * might have no effect at all.
 */

void *
boundCheckingMalloc(long s)
{
    if (sizeof(size_t) == sizeof(long)) {	/* same size, just do it */
	return (malloc((size_t) s));
    } else {
	if (sizeof(size_t) == 2) {
	    if (s > 0xFFFF)
		return (NULL);		/* to large, size_t with 2 bytes
					 * only allows 16 bits */
	    else
		return (malloc((size_t) s));
	} else {			/* it's not a long, not 2 bytes,
					 * what is it ??? */
	    return (malloc((size_t) s));
	}
    }
}
void *
boundCheckingCalloc(long num, long s)
{
    if (sizeof(size_t) == sizeof(long)) {	/* same size, just do it */
	return (calloc((size_t) num, (size_t) s));
    } else {
	if (sizeof(size_t) == 2) {
	    if (s > 0xFFFF || num * s > 0xFFFF)
		return (NULL);		/* to large, size_t with 2 bytes
					 * only allows 16 bits */
	    else
		return (calloc((size_t) num, (size_t) s));
	} else {			/* it's not a long, not 2 bytes,
					 * what is it ??? */
	    return (calloc((size_t) num, (size_t) s));
	}
    }
}
void *
boundCheckingRealloc(void *p, long s)
{
    if (sizeof(size_t) == sizeof(long)) {	/* same size, just do it */
	return (realloc(p, (size_t) s));
    } else {
	if (sizeof(size_t) == 2) {
	    if (s > 0xFFFF)
		return (NULL);		/* to large, size_t with 2 bytes
					 * only allows 16 bits */
	    else
		return (realloc(p, (size_t) s));
	} else {			/* it's not a long, not 2 bytes,
					 * what is it ??? */
	    return (realloc(p, (size_t) s));
	}
    }
}

/* static Visual theVisual = { 0 }; */
Visual *
XDefaultVisual(Display *display, Screen *screen)
{
    return (NULL);			/* struct could contain info about
					 * MONO, GRAY, COLOR */
}

Screen *
XDefaultScreen(Display *d)
{
    return (NULL);
}

/* I get only 1 plane but 8 bits per pixel,
   so I think BITSPIXEL should be depth */
int
XDefaultDepth(Display *display, Screen *screen)
{
    int d, b;
#ifdef __OS2__
    HPS                             hpsScreen;
    HDC                             hdcScreen;
    LONG                            lPlanes;
    LONG                            lBitsPerPixel;
    LONG                            nDepth;

    hpsScreen = WinGetScreenPS(HWND_DESKTOP);
    hdcScreen = GpiQueryDevice(hpsScreen);
    DevQueryCaps(hdcScreen, CAPS_COLOR_PLANES, 1L, &lPlanes);
    DevQueryCaps(hdcScreen, CAPS_COLOR_BITCOUNT, 1L, &lBitsPerPixel);
    b = (int)lBitsPerPixel;
#else
    b = GetDeviceCaps(*display, BITSPIXEL);
    d = GetDeviceCaps(*display, PLANES);
#endif
    return (b);
}

Colormap *
XDefaultColormap(Display *display, Screen *screen)
{
    return (NULL);
}

/* convert hex color names,
   wrong digits (not a-f,A-F,0-9) are treated as zero */
static int
hexCharToInt(char c)
{
    int r;

    if (c >= '0' && c <= '9')
	r = c - '0';
    else if (c >= 'a' && c <= 'f')
	r = c - 'a' + 10;
    else if (c >= 'A' && c <= 'F')
	r = c - 'A' + 10;
    else
	r = 0;

    return (r);
}

static int
rgbFromHex(char *hex, int *r, int *g, int *b)
{
    int len;

    if (hex == NULL || hex[0] != '#')
	return (0);

    len = strlen(hex);
    if (len == 3 + 1) {
	*r = hexCharToInt(hex[1]);
	*g = hexCharToInt(hex[2]);
	*b = hexCharToInt(hex[3]);
    } else if (len == 6 + 1) {
	*r = hexCharToInt(hex[1]) * 16 + hexCharToInt(hex[2]);
	*g = hexCharToInt(hex[3]) * 16 + hexCharToInt(hex[4]);
	*b = hexCharToInt(hex[5]) * 16 + hexCharToInt(hex[6]);
    } else if (len == 12 + 1) {
	/* it's like c #32329999CCCC */
	/* so for now only take two digits */
	*r = hexCharToInt(hex[1]) * 16 + hexCharToInt(hex[2]);
	*g = hexCharToInt(hex[5]) * 16 + hexCharToInt(hex[6]);
	*b = hexCharToInt(hex[9]) * 16 + hexCharToInt(hex[10]);
    } else
	return (0);

    return (1);
}

/* Color related functions */
int
XParseColor(Display *d, Colormap *cmap, char *name, XColor *color)
{
    int r, g, b;			/* only 8 bit values used */
    int okay;

/* TODO: use colormap via PALETTE */
    /* parse name either in table or #RRGGBB #RGB */
    if (name == NULL)
	return (0);

    if (name[0] == '#') {		/* a hex string */
	okay = rgbFromHex(name, &r, &g, &b);
    } else {
	okay = xpmGetRGBfromName(name, &r, &g, &b);
    }

    if (okay) {
#ifdef __OS2__
	color->pixel = OS2RGB(r, g, b);
#else
	color->pixel = RGB(r, g, b);
#endif
	color->red = (BYTE) r;
	color->green = (BYTE) g;
	color->blue = (BYTE) b;
	return (1);
    } else
	return (0);			/* --> ColorError */
}


/* GRG: 2nd arg is Colormap*, not Colormap */

int
XAllocColor(Display *d, Colormap *cmap, XColor *color)
{
/* colormap not used yet so color->pixel is the real COLORREF (RBG) and not an
   index in some colormap as in X */
    return (1);
}
void
XQueryColors(Display *display, Colormap *colormap,
	     XColor *xcolors, int ncolors)
{
/* under X this fills the rgb values to given .pixel */
/* since there no colormap use FOR_MSW (not yet!!), rgb is plain encoded */
    XColor *xc = xcolors;
    int i;

    for (i = 0; i < ncolors; i++, xc++) {
	xc->red = GetRValue(xc->pixel);
	xc->green = GetGValue(xc->pixel);
	xc->blue = GetBValue(xc->pixel);
    }
    return;
}
int
XFreeColors(Display *d, Colormap cmap,
	    unsigned long pixels[], int npixels, unsigned long planes)
{
    /* no colormap yet */
    return (0);				/* correct ??? */
}

/* XImage functions */
XImage *
XCreateImage(Display *d, Visual *v,
	     int depth, int format,
	     int x, int y, int width, int height,
	     int pad, int foo)
{
    XImage *img = (XImage *) XpmMalloc(sizeof(XImage));
#ifdef __OS2__
    HPS                  hps;
    BITMAPINFOHEADER2    bmih;

    hps = WinGetScreenPS(HWND_DESKTOP);
    memset(&bmih, 0, sizeof(BITMAPINFOHEADER2));
    bmih.cbFix = sizeof(BITMAPINFOHEADER2);
    bmih.cx = width;
    bmih.cy = height;
    bmih.cPlanes = 1;
    bmih.cBitCount = depth;
#endif

    if (img) {
	/*JW: This is what it should be, but the picture comes out
	      just black!?  It appears to be doing monochrome reduction,
	      but I've got no clue why.  Using CreateBitmap() is supposed
	      to be slower, but otherwise ok
	  if ( depth == GetDeviceCaps(*d, BITSPIXEL) ) {
	    img->bitmap = CreateCompatibleBitmap(*d, width, height);
        } else*/ {
#ifdef __OS2__
     img->bitmap = GpiCreateBitmap(hps, &bmih, 0L, NULL, NULL);
#else
	    img->bitmap = CreateBitmap(width, height, 1 /* plane */ ,
				       depth /* bits per pixel */ , NULL);
#endif
	}
	img->width = width;
	img->height = height;
	img->depth = depth;
    }
    return (img);

}

void
XImageFree(XImage *img)
{
    if (img) {
	XpmFree(img);
    }
}
void
XDestroyImage(XImage *img)
{
    if (img) {
#ifdef __OS2__
     GpiDeleteBitmap(img->bitmap);
#else
	DeleteObject(img->bitmap);	/* check return ??? */
#endif
	XImageFree(img);
    }
}

#endif
Commit	Line	Data
	1	/*
	2	* Copyright (C) 1989-95 GROUPE BULL
	3	*
	4	* Permission is hereby granted, free of charge, to any person obtaining a copy
	5	* of this software and associated documentation files (the "Software"), to
	6	* deal in the Software without restriction, including without limitation the
	7	* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
	8	* sell copies of the Software, and to permit persons to whom the Software is
	9	* furnished to do so, subject to the following conditions:
	10	*
	11	* The above copyright notice and this permission notice shall be included in
	12	* all copies or substantial portions of the Software.
	13	*
	14	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	15	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	17	* GROUPE BULL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
	18	* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
	19	* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
	20	*
	21	* Except as contained in this notice, the name of GROUPE BULL shall not be
	22	* used in advertising or otherwise to promote the sale, use or other dealings
	23	* in this Software without prior written authorization from GROUPE BULL.
	24	*/
	25
	26	/*****************************************************************************\
	27	* simx.c: 0.1a *
	28	* *
	29	* This emulates some Xlib functionality for MSW. It's not a general solution, *
	30	* it is close related to XPM-lib. It is only intended to satisfy what is need *
	31	* there. Thus allowing to read XPM files under MS windows. *
	32	* *
	33	* Developed by HeDu 3/94 (hedu@cul-ipn.uni-kiel.de) *
	34	\*****************************************************************************/
	35
	36	/* Moved here so that FOR_MSW gets defined if we are using wxWindows (GRG) */
	37	#include "xpm.h"
	38
	39	#ifdef FOR_MSW
	40
	41	#include "xpmi.h" /* for XpmMalloc */
	42
	43	/*
	44	* On DOS size_t is only 2 bytes, thus malloc(size_t s) can only malloc
	45	* 64K. BUT an expression data=malloc(width*height) may result in an
	46	* overflow. So this function takes a long as input, and returns NULL if the
	47	* request is larger than 64K, is size_t is only 2 bytes.
	48	*
	49	* This requires casts like XpmMalloc( (long)width*(long(height)), else it
	50	* might have no effect at all.
	51	*/
	52
	53	void *
	54	boundCheckingMalloc(long s)
	55	{
	56	if (sizeof(size_t) == sizeof(long)) { /* same size, just do it */
	57	return (malloc((size_t) s));
	58	} else {
	59	if (sizeof(size_t) == 2) {
	60	if (s > 0xFFFF)
	61	return (NULL); /* to large, size_t with 2 bytes
	62	* only allows 16 bits */
	63	else
	64	return (malloc((size_t) s));
	65	} else { /* it's not a long, not 2 bytes,
	66	* what is it ??? */
	67	return (malloc((size_t) s));
	68	}
	69	}
	70	}
	71	void *
	72	boundCheckingCalloc(long num, long s)
	73	{
	74	if (sizeof(size_t) == sizeof(long)) { /* same size, just do it */
	75	return (calloc((size_t) num, (size_t) s));
	76	} else {
	77	if (sizeof(size_t) == 2) {
	78	if (s > 0xFFFF \|\| num * s > 0xFFFF)
	79	return (NULL); /* to large, size_t with 2 bytes
	80	* only allows 16 bits */
	81	else
	82	return (calloc((size_t) num, (size_t) s));
	83	} else { /* it's not a long, not 2 bytes,
	84	* what is it ??? */
	85	return (calloc((size_t) num, (size_t) s));
	86	}
	87	}
	88	}
	89	void *
	90	boundCheckingRealloc(void *p, long s)
	91	{
	92	if (sizeof(size_t) == sizeof(long)) { /* same size, just do it */
	93	return (realloc(p, (size_t) s));
	94	} else {
	95	if (sizeof(size_t) == 2) {
	96	if (s > 0xFFFF)
	97	return (NULL); /* to large, size_t with 2 bytes
	98	* only allows 16 bits */
	99	else
	100	return (realloc(p, (size_t) s));
	101	} else { /* it's not a long, not 2 bytes,
	102	* what is it ??? */
	103	return (realloc(p, (size_t) s));
	104	}
	105	}
	106	}
	107
	108	/* static Visual theVisual = { 0 }; */
	109	Visual *
	110	XDefaultVisual(Display display, Screen screen)
	111	{
	112	return (NULL); /* struct could contain info about
	113	* MONO, GRAY, COLOR */
	114	}
	115
	116	Screen *
	117	XDefaultScreen(Display *d)
	118	{
	119	return (NULL);
	120	}
	121
	122	/* I get only 1 plane but 8 bits per pixel,
	123	so I think BITSPIXEL should be depth */
	124	int
	125	XDefaultDepth(Display display, Screen screen)
	126	{
	127	int d, b;
	128	#ifdef __OS2__
	129	HPS hpsScreen;
	130	HDC hdcScreen;
	131	LONG lPlanes;
	132	LONG lBitsPerPixel;
	133	LONG nDepth;
	134
	135	hpsScreen = WinGetScreenPS(HWND_DESKTOP);
	136	hdcScreen = GpiQueryDevice(hpsScreen);
	137	DevQueryCaps(hdcScreen, CAPS_COLOR_PLANES, 1L, &lPlanes);
	138	DevQueryCaps(hdcScreen, CAPS_COLOR_BITCOUNT, 1L, &lBitsPerPixel);
	139	b = (int)lBitsPerPixel;
	140	#else
	141	b = GetDeviceCaps(*display, BITSPIXEL);
	142	d = GetDeviceCaps(*display, PLANES);
	143	#endif
	144	return (b);
	145	}
	146
	147	Colormap *
	148	XDefaultColormap(Display display, Screen screen)
	149	{
	150	return (NULL);
	151	}
	152
	153	/* convert hex color names,
	154	wrong digits (not a-f,A-F,0-9) are treated as zero */
	155	static int
	156	hexCharToInt(char c)
	157	{
	158	int r;
	159
	160	if (c >= '0' && c <= '9')
	161	r = c - '0';
	162	else if (c >= 'a' && c <= 'f')
	163	r = c - 'a' + 10;
	164	else if (c >= 'A' && c <= 'F')
	165	r = c - 'A' + 10;
	166	else
	167	r = 0;
	168
	169	return (r);
	170	}
	171
	172	static int
	173	rgbFromHex(char hex, int r, int g, int b)
	174	{
	175	int len;
	176
	177	if (hex == NULL \|\| hex[0] != '#')
	178	return (0);
	179
	180	len = strlen(hex);
	181	if (len == 3 + 1) {
	182	*r = hexCharToInt(hex[1]);
	183	*g = hexCharToInt(hex[2]);
	184	*b = hexCharToInt(hex[3]);
	185	} else if (len == 6 + 1) {
	186	r = hexCharToInt(hex[1]) 16 + hexCharToInt(hex[2]);
	187	g = hexCharToInt(hex[3]) 16 + hexCharToInt(hex[4]);
	188	b = hexCharToInt(hex[5]) 16 + hexCharToInt(hex[6]);
	189	} else if (len == 12 + 1) {
	190	/* it's like c #32329999CCCC */
	191	/* so for now only take two digits */
	192	r = hexCharToInt(hex[1]) 16 + hexCharToInt(hex[2]);
	193	g = hexCharToInt(hex[5]) 16 + hexCharToInt(hex[6]);
	194	b = hexCharToInt(hex[9]) 16 + hexCharToInt(hex[10]);
	195	} else
	196	return (0);
	197
	198	return (1);
	199	}
	200
	201	/* Color related functions */
	202	int
	203	XParseColor(Display d, Colormap cmap, char name, XColor color)
	204	{
	205	int r, g, b; /* only 8 bit values used */
	206	int okay;
	207
	208	/* TODO: use colormap via PALETTE */
	209	/* parse name either in table or #RRGGBB #RGB */
	210	if (name == NULL)
	211	return (0);
	212
	213	if (name[0] == '#') { /* a hex string */
	214	okay = rgbFromHex(name, &r, &g, &b);
	215	} else {
	216	okay = xpmGetRGBfromName(name, &r, &g, &b);
	217	}
	218
	219	if (okay) {
	220	#ifdef __OS2__
	221	color->pixel = OS2RGB(r, g, b);
	222	#else
	223	color->pixel = RGB(r, g, b);
	224	#endif
	225	color->red = (BYTE) r;
	226	color->green = (BYTE) g;
	227	color->blue = (BYTE) b;
	228	return (1);
	229	} else
	230	return (0); /* --> ColorError */
	231	}
	232
	233
	234	/* GRG: 2nd arg is Colormap, not Colormap /
	235
	236	int
	237	XAllocColor(Display d, Colormap cmap, XColor *color)
	238	{
	239	/* colormap not used yet so color->pixel is the real COLORREF (RBG) and not an
	240	index in some colormap as in X */
	241	return (1);
	242	}
	243	void
	244	XQueryColors(Display display, Colormap colormap,
	245	XColor *xcolors, int ncolors)
	246	{
	247	/* under X this fills the rgb values to given .pixel */
	248	/* since there no colormap use FOR_MSW (not yet!!), rgb is plain encoded */
	249	XColor *xc = xcolors;
	250	int i;
	251
	252	for (i = 0; i < ncolors; i++, xc++) {
	253	xc->red = GetRValue(xc->pixel);
	254	xc->green = GetGValue(xc->pixel);
	255	xc->blue = GetBValue(xc->pixel);
	256	}
	257	return;
	258	}
	259	int
	260	XFreeColors(Display *d, Colormap cmap,
	261	unsigned long pixels[], int npixels, unsigned long planes)
	262	{
	263	/* no colormap yet */
	264	return (0); /* correct ??? */
	265	}
	266
	267	/* XImage functions */
	268	XImage *
	269	XCreateImage(Display d, Visual v,
	270	int depth, int format,
	271	int x, int y, int width, int height,
	272	int pad, int foo)
	273	{
	274	XImage img = (XImage ) XpmMalloc(sizeof(XImage));
	275	#ifdef __OS2__
	276	HPS hps;
	277	BITMAPINFOHEADER2 bmih;
	278
	279	hps = WinGetScreenPS(HWND_DESKTOP);
	280	memset(&bmih, 0, sizeof(BITMAPINFOHEADER2));
	281	bmih.cbFix = sizeof(BITMAPINFOHEADER2);
	282	bmih.cx = width;
	283	bmih.cy = height;
	284	bmih.cPlanes = 1;
	285	bmih.cBitCount = depth;
	286	#endif
	287
	288	if (img) {
	289	/*JW: This is what it should be, but the picture comes out
	290	just black!? It appears to be doing monochrome reduction,
	291	but I've got no clue why. Using CreateBitmap() is supposed
	292	to be slower, but otherwise ok
	293	if ( depth == GetDeviceCaps(*d, BITSPIXEL) ) {
	294	img->bitmap = CreateCompatibleBitmap(*d, width, height);
	295	} else*/ {
	296	#ifdef __OS2__
	297	img->bitmap = GpiCreateBitmap(hps, &bmih, 0L, NULL, NULL);
	298	#else
	299	img->bitmap = CreateBitmap(width, height, 1 /* plane */ ,
	300	depth /* bits per pixel */ , NULL);
	301	#endif
	302	}
	303	img->width = width;
	304	img->height = height;
	305	img->depth = depth;
	306	}
	307	return (img);
	308
	309	}
	310
	311	void
	312	XImageFree(XImage *img)
	313	{
	314	if (img) {
	315	XpmFree(img);
	316	}
	317	}
	318	void
	319	XDestroyImage(XImage *img)
	320	{
	321	if (img) {
	322	#ifdef __OS2__
	323	GpiDeleteBitmap(img->bitmap);
	324	#else
	325	DeleteObject(img->bitmap); /* check return ??? */
	326	#endif
	327	XImageFree(img);
	328	}
	329	}
	330
	331	#endif