[wxWidgets.git] / src / mac / 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)                           *
\*****************************************************************************/

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

#ifdef FOR_MSW

/*
 * 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));
	}
    }
}
#endif

/* 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)
{
#ifdef FOR_MSW
    int d, b;

    b = GetDeviceCaps(*display, BITSPIXEL);
    d = GetDeviceCaps(*display, PLANES);
    return (b);
#else
	return (**((*display)->gdPMap)).pixelSize ;
#endif
}

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(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]);
		#ifdef macintosh
		*r <<= 12 ;
		*g <<= 12 ;
		*b <<= 12 ;
		#endif
    } 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]);
		#ifdef macintosh
		*r <<= 8 ;
		*g <<= 8 ;
		*b <<= 8 ;
		#endif
    } else if (len == 12 + 1) 
    {
		/* it's like c #32329999CCCC */
		#ifdef macintosh
		*r = hexCharToInt(hex[1]) * 0x1000 + hexCharToInt(hex[2]) *0x0100 + hexCharToInt(hex[3]) *0x0010 + hexCharToInt(hex[4]) ;
		*g = hexCharToInt(hex[5]) * 0x1000 + hexCharToInt(hex[6]) *0x0100 + hexCharToInt(hex[7]) *0x0010 + hexCharToInt(hex[8]);
		*b =hexCharToInt(hex[9]) * 0x1000 + hexCharToInt(hex[10]) *0x0100 + hexCharToInt(hex[11]) *0x0010 + hexCharToInt(hex[12]);
		#else
		/* 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]);
		#endif
    } 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 FOR_MSW
			color->pixel = RGB(r, g, b);
			color->red = (BYTE) r;
			color->green = (BYTE) g;
			color->blue = (BYTE) b;
    	#elif macintosh
    		color->pixel.red = r ;
    		color->pixel.green = g ;
    		color->pixel.blue = b ;
    		
			color->red = r;
			color->green = g;
			color->blue = b;
    	#endif
		return (1);
    } 
    else
	return (0);			/* --> ColorError */
}


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));

    if (img) 
    {
    #if FOR_MSW
	/*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*/ 
        {
	    img->bitmap = CreateBitmap(width, height, 1 /* plane */ ,
				       depth /* bits per pixel */ , NULL);
		}
	#elif macintosh
		Rect rect ;
		
		rect.left= rect.top = 0 ;
		rect.right = width ;
		rect.bottom = height ;
		
		NewGWorld( &img->gworldptr , depth , &rect , NULL , NULL , 0 ) ;
		if (img->gworldptr == NULL)
		{
	    	XDestroyImage (img);
	    	return NULL;
		}
/*
		else
		{
			RGBColor		gray = { 0xEEEE ,0xEEEE , 0xEEEE } ;
			RGBBackColor( &gray ) ;
			EraseRect(&rect) ;
		}
*/
	#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) {
    #if FOR_MSW
	DeleteObject(img->bitmap);	/* check return ??? */
	#elif macintosh
	if ( img->gworldptr )
		DisposeGWorld( img->gworldptr ) ;
	#endif
	XImageFree(img);
    }
}
Commit	Line	Data
0240e8b1 SC	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	#include "xpm.h"
	37	#include "xpmi.h" /* for XpmMalloc */
	38
	39	#ifdef FOR_MSW
	40
	41	/*
	42	* On DOS size_t is only 2 bytes, thus malloc(size_t s) can only malloc
	43	* 64K. BUT an expression data=malloc(width*height) may result in an
	44	* overflow. So this function takes a long as input, and returns NULL if the
	45	* request is larger than 64K, is size_t is only 2 bytes.
	46	*
	47	* This requires casts like XpmMalloc( (long)width*(long(height)), else it
	48	* might have no effect at all.
	49	*/
	50
	51	void *
	52	boundCheckingMalloc(long s)
	53	{
	54	if (sizeof(size_t) == sizeof(long)) { /* same size, just do it */
	55	return (malloc((size_t) s));
	56	} else {
	57	if (sizeof(size_t) == 2) {
	58	if (s > 0xFFFF)
	59	return (NULL); /* to large, size_t with 2 bytes
	60	* only allows 16 bits */
	61	else
	62	return (malloc((size_t) s));
	63	} else { /* it's not a long, not 2 bytes,
	64	* what is it ??? */
65	return (malloc((size_t) s));
66	}
67	}
68	}
69	void *
70	boundCheckingCalloc(long num, long s)
71	{
72	if (sizeof(size_t) == sizeof(long)) { /* same size, just do it */
73	return (calloc((size_t) num, (size_t) s));
74	} else {
75	if (sizeof(size_t) == 2) {
76	if (s > 0xFFFF \|\| num * s > 0xFFFF)
77	return (NULL); /* to large, size_t with 2 bytes
78	* only allows 16 bits */
79	else
80	return (calloc((size_t) num, (size_t) s));
81	} else { /* it's not a long, not 2 bytes,
82	* what is it ??? */
83	return (calloc((size_t) num, (size_t) s));
84	}
85	}
86	}
87	void *
88	boundCheckingRealloc(void *p, long s)
89	{
90	if (sizeof(size_t) == sizeof(long)) { /* same size, just do it */
91	return (realloc(p, (size_t) s));
92	} else {
93	if (sizeof(size_t) == 2) {
94	if (s > 0xFFFF)
95	return (NULL); /* to large, size_t with 2 bytes
96	* only allows 16 bits */
97	else
98	return (realloc(p, (size_t) s));
99	} else { /* it's not a long, not 2 bytes,
100	* what is it ??? */
101	return (realloc(p, (size_t) s));
102	}
103	}
104	}
105	#endif
106
107	/* static Visual theVisual = { 0 }; */
108	Visual *
109	XDefaultVisual(Display display, Screen screen)
110	{
111	return (NULL); /* struct could contain info about
112	* MONO, GRAY, COLOR */
113	}
114
115	Screen *
116	XDefaultScreen(Display *d)
117	{
118	return (NULL);
119	}
120
121	/* I get only 1 plane but 8 bits per pixel,
122	so I think BITSPIXEL should be depth */
123	int
124	XDefaultDepth(Display display, Screen screen)
125	{
126	#ifdef FOR_MSW
127	int d, b;
128
129	b = GetDeviceCaps(*display, BITSPIXEL);
130	d = GetDeviceCaps(*display, PLANES);
131	return (b);
132	#else
133	return (*((display)->gdPMap)).pixelSize ;
134	#endif
135	}
136
137	Colormap *
138	XDefaultColormap(Display display, Screen screen)
139	{
140	return (NULL);
141	}
142
143	/* convert hex color names,
144	wrong digits (not a-f,A-F,0-9) are treated as zero */
145	static int
146	hexCharToInt(c)
147	{
148	int r;
149
150	if (c >= '0' && c <= '9')
151	r = c - '0';
152	else if (c >= 'a' && c <= 'f')
153	r = c - 'a' + 10;
154	else if (c >= 'A' && c <= 'F')
155	r = c - 'A' + 10;
156	else
157	r = 0;
158
159	return (r);
160	}
161
162	static int
163	rgbFromHex(char hex, int r, int g, int b)
164	{
165	int len;
166
167	if (hex == NULL \|\| hex[0] != '#')
168	return (0);
169
170	len = strlen(hex);
171	if (len == 3 + 1)
172	{
173	*r = hexCharToInt(hex[1]);
174	*g = hexCharToInt(hex[2]);
175	*b = hexCharToInt(hex[3]);
176	#ifdef macintosh
177	*r <<= 12 ;
178	*g <<= 12 ;
179	*b <<= 12 ;
180	#endif
181	} else if (len == 6 + 1)
182	{
183	r = hexCharToInt(hex[1]) 16 + hexCharToInt(hex[2]);
184	g = hexCharToInt(hex[3]) 16 + hexCharToInt(hex[4]);
185	b = hexCharToInt(hex[5]) 16 + hexCharToInt(hex[6]);
186	#ifdef macintosh
187	*r <<= 8 ;
188	*g <<= 8 ;
189	*b <<= 8 ;
190	#endif
191	} else if (len == 12 + 1)
192	{
193	/* it's like c #32329999CCCC */
194	#ifdef macintosh
195	r = hexCharToInt(hex[1]) 0x1000 + hexCharToInt(hex[2]) 0x0100 + hexCharToInt(hex[3]) 0x0010 + hexCharToInt(hex[4]) ;
196	g = hexCharToInt(hex[5]) 0x1000 + hexCharToInt(hex[6]) 0x0100 + hexCharToInt(hex[7]) 0x0010 + hexCharToInt(hex[8]);
197	b =hexCharToInt(hex[9]) 0x1000 + hexCharToInt(hex[10]) 0x0100 + hexCharToInt(hex[11]) 0x0010 + hexCharToInt(hex[12]);
198	#else
199	/* so for now only take two digits */
200	r = hexCharToInt(hex[1]) 16 + hexCharToInt(hex[2]);
201	g = hexCharToInt(hex[5]) 16 + hexCharToInt(hex[6]);
202	b = hexCharToInt(hex[9]) 16 + hexCharToInt(hex[10]);
203	#endif
204	} else
205	return (0);
206
207	return (1);
208	}
209
210	/* Color related functions */
211	int
212	XParseColor(Display d, Colormap cmap, char name, XColor color)
213	{
214	int r, g, b; /* only 8 bit values used */
215	int okay;
216
217	/* TODO: use colormap via PALETTE */
218	/* parse name either in table or #RRGGBB #RGB */
219	if (name == NULL)
220	return (0);
221
222	if (name[0] == '#') { /* a hex string */
223	okay = rgbFromHex(name, &r, &g, &b);
224	} else {
225	okay = xpmGetRGBfromName(name, &r, &g, &b);
226	}
227
228	if (okay)
229	{
230	#ifdef FOR_MSW
231	color->pixel = RGB(r, g, b);
232	color->red = (BYTE) r;
233	color->green = (BYTE) g;
234	color->blue = (BYTE) b;
235	#elif macintosh
236	color->pixel.red = r ;
237	color->pixel.green = g ;
238	color->pixel.blue = b ;
239
240	color->red = r;
241	color->green = g;
242	color->blue = b;
243	#endif
244	return (1);
245	}
246	else
247	return (0); /* --> ColorError */
248	}
249
250
251	int
252	XAllocColor(Display d, Colormap cmap, XColor *color)
253	{
254	/* colormap not used yet so color->pixel is the real COLORREF (RBG) and not an
255	index in some colormap as in X */
256	return (1);
257	}
258	void
259	XQueryColors(Display display, Colormap colormap,
260	XColor *xcolors, int ncolors)
261	{
262	/* under X this fills the rgb values to given .pixel */
263	/* since there no colormap use FOR_MSW (not yet!!), rgb is plain encoded */
264	XColor *xc = xcolors;
265	int i;
266
267	for (i = 0; i < ncolors; i++, xc++) {
268	xc->red = GetRValue(xc->pixel);
269	xc->green = GetGValue(xc->pixel);
270	xc->blue = GetBValue(xc->pixel);
271	}
272	return;
273	}
274	int
275	XFreeColors(Display *d, Colormap cmap,
276	unsigned long pixels[], int npixels, unsigned long planes)
277	{
278	/* no colormap yet */
279	return (0); /* correct ??? */
280	}
281
282	/* XImage functions */
283	XImage *
284	XCreateImage(Display d, Visual v,
285	int depth, int format,
286	int x, int y, int width, int height,
287	int pad, int foo)
288	{
289	XImage img = (XImage ) XpmMalloc(sizeof(XImage));
290
291	if (img)
292	{
293	#if FOR_MSW
294	/*JW: This is what it should be, but the picture comes out
295	just black!? It appears to be doing monochrome reduction,
296	but I've got no clue why. Using CreateBitmap() is supposed
297	to be slower, but otherwise ok
298	if ( depth == GetDeviceCaps(*d, BITSPIXEL) ) {
299	img->bitmap = CreateCompatibleBitmap(*d, width, height);
300	} else*/
301	{
302	img->bitmap = CreateBitmap(width, height, 1 /* plane */ ,
303	depth /* bits per pixel */ , NULL);
304	}
305	#elif macintosh
306	Rect rect ;
307
308	rect.left= rect.top = 0 ;
309	rect.right = width ;
310	rect.bottom = height ;
311
312	NewGWorld( &img->gworldptr , depth , &rect , NULL , NULL , 0 ) ;
313	if (img->gworldptr == NULL)
314	{
315	XDestroyImage (img);
316	return NULL;
317	}
318	/*
319	else
320	{
321	RGBColor gray = { 0xEEEE ,0xEEEE , 0xEEEE } ;
322	RGBBackColor( &gray ) ;
323	EraseRect(&rect) ;
324	}
325	*/
326	#endif
327	img->width = width;
328	img->height = height;
329	img->depth = depth;
330	}
331	return (img);
332
333	}
334
335	void
336	XImageFree(XImage *img)
337	{
338	if (img) {
339	XpmFree(img);
340	}
341	}
342	void
343	XDestroyImage(XImage *img)
344	{
345	if (img) {
346	#if FOR_MSW
347	DeleteObject(img->bitmap); /* check return ??? */
348	#elif macintosh
349	if ( img->gworldptr )
350	DisposeGWorld( img->gworldptr ) ;
351	#endif
352	XImageFree(img);
353	}
354	}
355