[deb_xorg-server.git] / mi / miglblt.c

/***********************************************************

Copyright 1987, 1998  The Open Group

Permission to use, copy, modify, distribute, and sell this software and its
documentation for any purpose is hereby granted without fee, provided that
the above copyright notice appear in all copies and that both that
copyright notice and this permission notice appear in supporting
documentation.

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 THE
OPEN GROUP 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 The Open Group shall not be
used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from The Open Group.

Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.

                        All Rights Reserved

Permission to use, copy, modify, and distribute this software and its 
documentation for any purpose and without fee is hereby granted, 
provided that the above copyright notice appear in all copies and that
both that copyright notice and this permission notice appear in 
supporting documentation, and that the name of Digital not be
used in advertising or publicity pertaining to distribution of the
software without specific, written prior permission.  

DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
SOFTWARE.

******************************************************************/

#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif

#include	<X11/X.h>
#include	<X11/Xmd.h>
#include	<X11/Xproto.h>
#include	"misc.h"
#include	<X11/fonts/fontstruct.h>
#include	"dixfontstr.h"
#include	"gcstruct.h"
#include	"windowstr.h"
#include	"scrnintstr.h"
#include	"pixmap.h"
#include	"servermd.h"
#include        "mi.h"

/*
    machine-independent glyph blt.
    assumes that glyph bits in snf are written in bytes,
have same bit order as the server's bitmap format,
and are byte padded.  this corresponds to the snf distributed
with the sample server.

    get a scratch GC.
    in the scratch GC set alu = GXcopy, fg = 1, bg = 0
    allocate a bitmap big enough to hold the largest glyph in the font
    validate the scratch gc with the bitmap
    for each glyph
	carefully put the bits of the glyph in a buffer,
	    padded to the server pixmap scanline padding rules
	fake a call to PutImage from the buffer into the bitmap
	use the bitmap in a call to PushPixels
*/

void
miPolyGlyphBlt(DrawablePtr pDrawable, GC * pGC, int x, int y, unsigned int nglyph, CharInfoPtr * ppci,  /* array of character info */
               pointer pglyphBase       /* start of array of glyphs */
    )
{
    int width, height;
    PixmapPtr pPixmap;
    int nbyLine;                /* bytes per line of padded pixmap */
    FontPtr pfont;
    GCPtr pGCtmp;
    int i;
    int j;
    unsigned char *pbits;       /* buffer for PutImage */
    unsigned char *pb;          /* temp pointer into buffer */
    CharInfoPtr pci;            /* currect char info */
    unsigned char *pglyph;      /* pointer bits in glyph */
    int gWidth, gHeight;        /* width and height of glyph */
    int nbyGlyphWidth;          /* bytes per scanline of glyph */
    int nbyPadGlyph;            /* server padded line of glyph */

    ChangeGCVal gcvals[3];

    if (pGC->miTranslate) {
        x += pDrawable->x;
        y += pDrawable->y;
    }

    pfont = pGC->font;
    width = FONTMAXBOUNDS(pfont, rightSideBearing) -
        FONTMINBOUNDS(pfont, leftSideBearing);
    height = FONTMAXBOUNDS(pfont, ascent) + FONTMAXBOUNDS(pfont, descent);

    pPixmap = (*pDrawable->pScreen->CreatePixmap) (pDrawable->pScreen,
                                                   width, height, 1,
                                                   CREATE_PIXMAP_USAGE_SCRATCH);
    if (!pPixmap)
        return;

    pGCtmp = GetScratchGC(1, pDrawable->pScreen);
    if (!pGCtmp) {
        (*pDrawable->pScreen->DestroyPixmap) (pPixmap);
        return;
    }

    gcvals[0].val = GXcopy;
    gcvals[1].val = 1;
    gcvals[2].val = 0;

    ChangeGC(NullClient, pGCtmp, GCFunction | GCForeground | GCBackground,
             gcvals);

    nbyLine = BitmapBytePad(width);
    pbits = malloc(height * nbyLine);
    if (!pbits) {
        (*pDrawable->pScreen->DestroyPixmap) (pPixmap);
        FreeScratchGC(pGCtmp);
        return;
    }
    while (nglyph--) {
        pci = *ppci++;
        pglyph = FONTGLYPHBITS(pglyphBase, pci);
        gWidth = GLYPHWIDTHPIXELS(pci);
        gHeight = GLYPHHEIGHTPIXELS(pci);
        if (gWidth && gHeight) {
            nbyGlyphWidth = GLYPHWIDTHBYTESPADDED(pci);
            nbyPadGlyph = BitmapBytePad(gWidth);

            if (nbyGlyphWidth == nbyPadGlyph
#if GLYPHPADBYTES != 4
                && (((int) pglyph) & 3) == 0
#endif
                ) {
                pb = pglyph;
            }
            else {
                for (i = 0, pb = pbits; i < gHeight;
                     i++, pb = pbits + (i * nbyPadGlyph))
                    for (j = 0; j < nbyGlyphWidth; j++)
                        *pb++ = *pglyph++;
                pb = pbits;
            }

            if ((pGCtmp->serialNumber) != (pPixmap->drawable.serialNumber))
                ValidateGC((DrawablePtr) pPixmap, pGCtmp);
            (*pGCtmp->ops->PutImage) ((DrawablePtr) pPixmap, pGCtmp,
                                      pPixmap->drawable.depth,
                                      0, 0, gWidth, gHeight,
                                      0, XYBitmap, (char *) pb);

            (*pGC->ops->PushPixels) (pGC, pPixmap, pDrawable,
                                     gWidth, gHeight,
                                     x + pci->metrics.leftSideBearing,
                                     y - pci->metrics.ascent);
        }
        x += pci->metrics.characterWidth;
    }
    (*pDrawable->pScreen->DestroyPixmap) (pPixmap);
    free(pbits);
    FreeScratchGC(pGCtmp);
}

void
miImageGlyphBlt(DrawablePtr pDrawable, GC * pGC, int x, int y, unsigned int nglyph, CharInfoPtr * ppci, /* array of character info */
                pointer pglyphBase      /* start of array of glyphs */
    )
{
    ExtentInfoRec info;         /* used by QueryGlyphExtents() */
    ChangeGCVal gcvals[3];
    int oldAlu, oldFS;
    unsigned long oldFG;
    xRectangle backrect;

    QueryGlyphExtents(pGC->font, ppci, (unsigned long) nglyph, &info);

    if (info.overallWidth >= 0) {
        backrect.x = x;
        backrect.width = info.overallWidth;
    }
    else {
        backrect.x = x + info.overallWidth;
        backrect.width = -info.overallWidth;
    }
    backrect.y = y - FONTASCENT(pGC->font);
    backrect.height = FONTASCENT(pGC->font) + FONTDESCENT(pGC->font);

    oldAlu = pGC->alu;
    oldFG = pGC->fgPixel;
    oldFS = pGC->fillStyle;

    /* fill in the background */
    gcvals[0].val = GXcopy;
    gcvals[1].val = pGC->bgPixel;
    gcvals[2].val = FillSolid;
    ChangeGC(NullClient, pGC, GCFunction | GCForeground | GCFillStyle, gcvals);
    ValidateGC(pDrawable, pGC);
    (*pGC->ops->PolyFillRect) (pDrawable, pGC, 1, &backrect);

    /* put down the glyphs */
    gcvals[0].val = oldFG;
    ChangeGC(NullClient, pGC, GCForeground, gcvals);
    ValidateGC(pDrawable, pGC);
    (*pGC->ops->PolyGlyphBlt) (pDrawable, pGC, x, y, nglyph, ppci, pglyphBase);

    /* put all the toys away when done playing */
    gcvals[0].val = oldAlu;
    gcvals[1].val = oldFG;
    gcvals[2].val = oldFS;
    ChangeGC(NullClient, pGC, GCFunction | GCForeground | GCFillStyle, gcvals);
    ValidateGC(pDrawable, pGC);

}
Commit	Line	Data
a09e091a JB	1	/***********************************************************
	2
	3	Copyright 1987, 1998 The Open Group
	4
	5	Permission to use, copy, modify, distribute, and sell this software and its
	6	documentation for any purpose is hereby granted without fee, provided that
	7	the above copyright notice appear in all copies and that both that
	8	copyright notice and this permission notice appear in supporting
	9	documentation.
	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 THE
	17	OPEN GROUP 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 The Open Group 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 The Open Group.
	24
	25	Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
	26
	27	All Rights Reserved
	28
	29	Permission to use, copy, modify, and distribute this software and its
	30	documentation for any purpose and without fee is hereby granted,
	31	provided that the above copyright notice appear in all copies and that
	32	both that copyright notice and this permission notice appear in
	33	supporting documentation, and that the name of Digital not be
	34	used in advertising or publicity pertaining to distribution of the
	35	software without specific, written prior permission.
	36
	37	DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
	38	ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
	39	DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
	40	ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
	41	WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
	42	ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
	43	SOFTWARE.
	44
	45	******************************************************************/
	46
	47	#ifdef HAVE_DIX_CONFIG_H
	48	#include <dix-config.h>
	49	#endif
	50
	51	#include <X11/X.h>
	52	#include <X11/Xmd.h>
	53	#include <X11/Xproto.h>
	54	#include "misc.h"
	55	#include <X11/fonts/fontstruct.h>
	56	#include "dixfontstr.h"
	57	#include "gcstruct.h"
	58	#include "windowstr.h"
	59	#include "scrnintstr.h"
	60	#include "pixmap.h"
	61	#include "servermd.h"
	62	#include "mi.h"
	63
	64	/*
65	machine-independent glyph blt.
66	assumes that glyph bits in snf are written in bytes,
67	have same bit order as the server's bitmap format,
68	and are byte padded. this corresponds to the snf distributed
69	with the sample server.
70
71	get a scratch GC.
72	in the scratch GC set alu = GXcopy, fg = 1, bg = 0
73	allocate a bitmap big enough to hold the largest glyph in the font
74	validate the scratch gc with the bitmap
75	for each glyph
76	carefully put the bits of the glyph in a buffer,
77	padded to the server pixmap scanline padding rules
78	fake a call to PutImage from the buffer into the bitmap
79	use the bitmap in a call to PushPixels
80	*/
81
82	void
83	miPolyGlyphBlt(DrawablePtr pDrawable, GC * pGC, int x, int y, unsigned int nglyph, CharInfoPtr * ppci, /* array of character info */
84	pointer pglyphBase /* start of array of glyphs */
85	)
86	{
87	int width, height;
88	PixmapPtr pPixmap;
89	int nbyLine; /* bytes per line of padded pixmap */
90	FontPtr pfont;
91	GCPtr pGCtmp;
92	int i;
93	int j;
94	unsigned char pbits; / buffer for PutImage */
95	unsigned char pb; / temp pointer into buffer */
96	CharInfoPtr pci; /* currect char info */
97	unsigned char pglyph; / pointer bits in glyph */
98	int gWidth, gHeight; /* width and height of glyph */
99	int nbyGlyphWidth; /* bytes per scanline of glyph */
100	int nbyPadGlyph; /* server padded line of glyph */
101
102	ChangeGCVal gcvals[3];
103
104	if (pGC->miTranslate) {
105	x += pDrawable->x;
106	y += pDrawable->y;
107	}
108
109	pfont = pGC->font;
110	width = FONTMAXBOUNDS(pfont, rightSideBearing) -
111	FONTMINBOUNDS(pfont, leftSideBearing);
112	height = FONTMAXBOUNDS(pfont, ascent) + FONTMAXBOUNDS(pfont, descent);
113
114	pPixmap = (*pDrawable->pScreen->CreatePixmap) (pDrawable->pScreen,
115	width, height, 1,
116	CREATE_PIXMAP_USAGE_SCRATCH);
117	if (!pPixmap)
118	return;
119
120	pGCtmp = GetScratchGC(1, pDrawable->pScreen);
121	if (!pGCtmp) {
122	(*pDrawable->pScreen->DestroyPixmap) (pPixmap);
123	return;
124	}
125
126	gcvals[0].val = GXcopy;
127	gcvals[1].val = 1;
128	gcvals[2].val = 0;
129
130	ChangeGC(NullClient, pGCtmp, GCFunction \| GCForeground \| GCBackground,
131	gcvals);
132
133	nbyLine = BitmapBytePad(width);
134	pbits = malloc(height * nbyLine);
135	if (!pbits) {
136	(*pDrawable->pScreen->DestroyPixmap) (pPixmap);
137	FreeScratchGC(pGCtmp);
138	return;
139	}
140	while (nglyph--) {
141	pci = *ppci++;
142	pglyph = FONTGLYPHBITS(pglyphBase, pci);
143	gWidth = GLYPHWIDTHPIXELS(pci);
144	gHeight = GLYPHHEIGHTPIXELS(pci);
145	if (gWidth && gHeight) {
146	nbyGlyphWidth = GLYPHWIDTHBYTESPADDED(pci);
147	nbyPadGlyph = BitmapBytePad(gWidth);
148
149	if (nbyGlyphWidth == nbyPadGlyph
150	#if GLYPHPADBYTES != 4
151	&& (((int) pglyph) & 3) == 0
152	#endif
153	) {
154	pb = pglyph;
155	}
156	else {
157	for (i = 0, pb = pbits; i < gHeight;
158	i++, pb = pbits + (i * nbyPadGlyph))
159	for (j = 0; j < nbyGlyphWidth; j++)
160	pb++ = pglyph++;
161	pb = pbits;
162	}
163
164	if ((pGCtmp->serialNumber) != (pPixmap->drawable.serialNumber))
165	ValidateGC((DrawablePtr) pPixmap, pGCtmp);
166	(*pGCtmp->ops->PutImage) ((DrawablePtr) pPixmap, pGCtmp,
167	pPixmap->drawable.depth,
168	0, 0, gWidth, gHeight,
169	0, XYBitmap, (char *) pb);
170
171	(*pGC->ops->PushPixels) (pGC, pPixmap, pDrawable,
172	gWidth, gHeight,
173	x + pci->metrics.leftSideBearing,
174	y - pci->metrics.ascent);
175	}
176	x += pci->metrics.characterWidth;
177	}
178	(*pDrawable->pScreen->DestroyPixmap) (pPixmap);
179	free(pbits);
180	FreeScratchGC(pGCtmp);
181	}
182
183	void
184	miImageGlyphBlt(DrawablePtr pDrawable, GC * pGC, int x, int y, unsigned int nglyph, CharInfoPtr * ppci, /* array of character info */
185	pointer pglyphBase /* start of array of glyphs */
186	)
187	{
188	ExtentInfoRec info; /* used by QueryGlyphExtents() */
189	ChangeGCVal gcvals[3];
190	int oldAlu, oldFS;
191	unsigned long oldFG;
192	xRectangle backrect;
193
194	QueryGlyphExtents(pGC->font, ppci, (unsigned long) nglyph, &info);
195
196	if (info.overallWidth >= 0) {
197	backrect.x = x;
198	backrect.width = info.overallWidth;
199	}
200	else {
201	backrect.x = x + info.overallWidth;
202	backrect.width = -info.overallWidth;
203	}
204	backrect.y = y - FONTASCENT(pGC->font);
205	backrect.height = FONTASCENT(pGC->font) + FONTDESCENT(pGC->font);
206
207	oldAlu = pGC->alu;
208	oldFG = pGC->fgPixel;
209	oldFS = pGC->fillStyle;
210
211	/* fill in the background */
212	gcvals[0].val = GXcopy;
213	gcvals[1].val = pGC->bgPixel;
214	gcvals[2].val = FillSolid;
215	ChangeGC(NullClient, pGC, GCFunction \| GCForeground \| GCFillStyle, gcvals);
216	ValidateGC(pDrawable, pGC);
217	(*pGC->ops->PolyFillRect) (pDrawable, pGC, 1, &backrect);
218
219	/* put down the glyphs */
220	gcvals[0].val = oldFG;
221	ChangeGC(NullClient, pGC, GCForeground, gcvals);
222	ValidateGC(pDrawable, pGC);
223	(*pGC->ops->PolyGlyphBlt) (pDrawable, pGC, x, y, nglyph, ppci, pglyphBase);
224
225	/* put all the toys away when done playing */
226	gcvals[0].val = oldAlu;
227	gcvals[1].val = oldFG;
228	gcvals[2].val = oldFS;
229	ChangeGC(NullClient, pGC, GCFunction \| GCForeground \| GCFillStyle, gcvals);
230	ValidateGC(pDrawable, pGC);
231
232	}