| 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 | } |