+++ /dev/null
-//========================================================================
-//
-// SplashT1Font.cc
-//
-//========================================================================
-
-#include <config.h>
-
-#if HAVE_T1LIB_H
-
-#ifdef USE_GCC_PRAGMAS
-#pragma implementation
-#endif
-
-#include <stdlib.h>
-#include <t1lib.h>
-#include "gmem.h"
-#include "SplashMath.h"
-#include "SplashGlyphBitmap.h"
-#include "SplashPath.h"
-#include "SplashT1FontEngine.h"
-#include "SplashT1FontFile.h"
-#include "SplashT1Font.h"
-
-//------------------------------------------------------------------------
-
-static Guchar bitReverse[256] = {
- 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
- 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
- 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
- 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
- 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4,
- 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
- 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec,
- 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
- 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
- 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
- 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
- 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
- 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6,
- 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
- 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
- 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
- 0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1,
- 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
- 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9,
- 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
- 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
- 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
- 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed,
- 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
- 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3,
- 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
- 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
- 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
- 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7,
- 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
- 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef,
- 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff
-};
-
-//------------------------------------------------------------------------
-// SplashT1Font
-//------------------------------------------------------------------------
-
-SplashT1Font::SplashT1Font(SplashT1FontFile *fontFileA, SplashCoord *matA):
- SplashFont(fontFileA, matA, ((SplashT1FontFile *)fontFileA)->engine->aa)
-{
- T1_TMATRIX matrix;
- BBox bbox;
- SplashCoord bbx0, bby0, bbx1, bby1;
- int x, y;
-
- t1libID = T1_CopyFont(fontFileA->t1libID);
-
- // compute font size
- size = (float)splashSqrt(mat[2]*mat[2] + mat[3]*mat[3]);
-
- // transform the four corners of the font bounding box -- the min
- // and max values form the bounding box of the transformed font
- bbox = T1_GetFontBBox(t1libID);
- bbx0 = 0.001 * bbox.llx;
- bby0 = 0.001 * bbox.lly;
- bbx1 = 0.001 * bbox.urx;
- bby1 = 0.001 * bbox.ury;
- // some fonts are completely broken, so we fake it (with values
- // large enough that most glyphs should fit)
- if (bbx0 == 0 && bby0 == 0 && bbx1 == 0 && bby1 == 0) {
- bbx0 = bby0 = -0.5;
- bbx1 = bby1 = 1.5;
- }
- x = (int)(mat[0] * bbx0 + mat[2] * bby0);
- xMin = xMax = x;
- y = (int)(mat[1] * bbx0 + mat[3] * bby0);
- yMin = yMax = y;
- x = (int)(mat[0] * bbx0 + mat[2] * bby1);
- if (x < xMin) {
- xMin = x;
- } else if (x > xMax) {
- xMax = x;
- }
- y = (int)(mat[1] * bbx0 + mat[3] * bby1);
- if (y < yMin) {
- yMin = y;
- } else if (y > yMax) {
- yMax = y;
- }
- x = (int)(mat[0] * bbx1 + mat[2] * bby0);
- if (x < xMin) {
- xMin = x;
- } else if (x > xMax) {
- xMax = x;
- }
- y = (int)(mat[1] * bbx1 + mat[3] * bby0);
- if (y < yMin) {
- yMin = y;
- } else if (y > yMax) {
- yMax = y;
- }
- x = (int)(mat[0] * bbx1 + mat[2] * bby1);
- if (x < xMin) {
- xMin = x;
- } else if (x > xMax) {
- xMax = x;
- }
- y = (int)(mat[1] * bbx1 + mat[3] * bby1);
- if (y < yMin) {
- yMin = y;
- } else if (y > yMax) {
- yMax = y;
- }
- // This is a kludge: some buggy PDF generators embed fonts with
- // zero bounding boxes.
- if (xMax == xMin) {
- xMin = 0;
- xMax = (int)size;
- }
- if (yMax == yMin) {
- yMin = 0;
- yMax = (int)(1.2 * size);
- }
- // Another kludge: an unusually large xMin or yMin coordinate is
- // probably wrong.
- if (xMin > 0) {
- xMin = 0;
- }
- if (yMin > 0) {
- yMin = 0;
- }
- // Another kludge: t1lib doesn't correctly handle fonts with
- // real (non-integer) bounding box coordinates.
- if (xMax - xMin > 5000) {
- xMin = 0;
- xMax = (int)size;
- }
- if (yMax - yMin > 5000) {
- yMin = 0;
- yMax = (int)(1.2 * size);
- }
-
- // transform the font
- matrix.cxx = (double)mat[0] / size;
- matrix.cxy = (double)mat[1] / size;
- matrix.cyx = (double)mat[2] / size;
- matrix.cyy = (double)mat[3] / size;
- T1_TransformFont(t1libID, &matrix);
-}
-
-SplashT1Font::~SplashT1Font() {
- T1_DeleteFont(t1libID);
-}
-
-GBool SplashT1Font::getGlyph(int c, int xFrac, int yFrac,
- SplashGlyphBitmap *bitmap) {
- return SplashFont::getGlyph(c, 0, 0, bitmap);
-}
-
-GBool SplashT1Font::makeGlyph(int c, int xFrac, int yFrac,
- SplashGlyphBitmap *bitmap) {
- GLYPH *glyph;
- int n, i;
-
- if (aa) {
- glyph = T1_AASetChar(t1libID, c, size, NULL);
- } else {
- glyph = T1_SetChar(t1libID, c, size, NULL);
- }
- if (!glyph) {
- return gFalse;
- }
-
- bitmap->x = -glyph->metrics.leftSideBearing;
- bitmap->y = glyph->metrics.ascent;
- bitmap->w = glyph->metrics.rightSideBearing - glyph->metrics.leftSideBearing;
- bitmap->h = glyph->metrics.ascent - glyph->metrics.descent;
- bitmap->aa = aa;
- if (aa) {
- bitmap->data = (Guchar *)glyph->bits;
- bitmap->freeData = gFalse;
- } else {
- n = bitmap->h * ((bitmap->w + 7) >> 3);
- bitmap->data = (Guchar *)gmalloc(n);
- for (i = 0; i < n; ++i) {
- bitmap->data[i] = bitReverse[glyph->bits[i] & 0xff];
- }
- bitmap->freeData = gTrue;
- }
-
- return gTrue;
-}
-
-SplashPath *SplashT1Font::getGlyphPath(int c) {
- SplashPath *path;
- T1_OUTLINE *outline;
- T1_PATHSEGMENT *seg;
- T1_BEZIERSEGMENT *bez;
- SplashCoord x, y, x1, y1;
- GBool needClose;
-
- path = new SplashPath();
- if (!(outline = T1_GetCharOutline(t1libID, c, size, NULL))) {
- return path;
- }
- x = 0;
- y = 0;
- needClose = gFalse;
- for (seg = outline; seg; seg = seg->link) {
- switch (seg->type) {
- case T1_PATHTYPE_MOVE:
- if (needClose) {
- path->close();
- needClose = gFalse;
- }
- x += seg->dest.x / 65536.0;
- y += seg->dest.y / 65536.0;
- path->moveTo(x, y);
- break;
- case T1_PATHTYPE_LINE:
- x += seg->dest.x / 65536.0;
- y += seg->dest.y / 65536.0;
- path->lineTo(x, y);
- needClose = gTrue;
- break;
- case T1_PATHTYPE_BEZIER:
- bez = (T1_BEZIERSEGMENT *)seg;
- x1 = x + bez->dest.x / 65536.0;
- y1 = y + bez->dest.y / 65536.0;
- path->curveTo(x + bez->B.x / 65536.0, y + bez->B.y / 65536.0,
- x + bez->C.x / 65536.0, y + bez->C.y / 65536.0,
- x1, y1);
- x = x1;
- y = y1;
- needClose = gTrue;
- break;
- }
- }
- if (needClose) {
- path->close();
- }
- T1_FreeOutline(outline);
- return path;
-}
-
-#endif // HAVE_T1LIB_H
projects / thirdparty / cups.git / blobdiff