static HPDF_STATUS
WriteTrailer (HPDF_Xref xref,
HPDF_Stream stream)
{
HPDF_UINT max_obj_id = xref->entries->count + xref->start_offset;
HPDF_STATUS ret;
HPDF_PTRACE ((" WriteTrailer\n"));
if ((ret = HPDF_Dict_AddNumber (xref->trailer, "Size", max_obj_id))
!= HPDF_OK)
return ret;
if (xref->prev)
if ((ret = HPDF_Dict_AddNumber (xref->trailer, "Prev",
xref->prev->addr)) != HPDF_OK)
return ret;
if ((ret = HPDF_Stream_WriteStr (stream, "trailer\012")) != HPDF_OK)
return ret;
if ((ret = HPDF_Dict_Write (xref->trailer, stream, NULL)) != HPDF_OK)
return ret;
if ((ret = HPDF_Stream_WriteStr (stream, "\012startxref\012")) != HPDF_OK)
return ret;
if ((ret = HPDF_Stream_WriteUInt (stream, xref->addr)) != HPDF_OK)
return ret;
if ((ret = HPDF_Stream_WriteStr (stream, "\012%%EOF\012")) != HPDF_OK)
return ret;
return HPDF_OK;
}
HPDF_LineAnnot_SetLeader (HPDF_Annotation annot, HPDF_INT leaderLen, HPDF_INT leaderExtLen, HPDF_INT leaderOffsetLen)
{
HPDF_STATUS ret = HPDF_OK;
HPDF_PTRACE((" HPDF_LineAnnot_SetLeader\n"));
ret += HPDF_Dict_AddNumber ( annot, "LL", leaderLen);
ret += HPDF_Dict_AddNumber ( annot, "LLE", leaderExtLen);
ret += HPDF_Dict_AddNumber ( annot, "LLO", leaderOffsetLen);
if (ret != HPDF_OK)
return HPDF_Error_GetCode ( annot->error);
return HPDF_OK;
}
HPDF_EXPORT(HPDF_STATUS) HPDF_U3D_Add3DView(HPDF_U3D u3d, HPDF_Dict view)
{
HPDF_Array views = NULL;
HPDF_STATUS ret = HPDF_OK;
HPDF_PTRACE ((" HPDF_Add3DView\n"));
if (u3d == NULL || view == NULL) {
return HPDF_INVALID_U3D_DATA;
}
views = (HPDF_Array)HPDF_Dict_GetItem (u3d, "VA", HPDF_OCLASS_ARRAY);
if (views == NULL) {
views = HPDF_Array_New (u3d->mmgr);
if (!views) {
return HPDF_Error_GetCode (u3d->error);
}
ret = HPDF_Dict_Add (u3d, "VA", views);
if (ret == HPDF_OK) {
ret = HPDF_Dict_AddNumber (u3d, "DV", 0);
} else {
HPDF_Array_Free (views);
return ret;
}
}
if (ret == HPDF_OK) {
ret = HPDF_Array_Add( views, view);
}
return ret;
}
HPDF_Dict
HPDF_PageLabel_New (HPDF_Doc pdf,
HPDF_PageNumStyle style,
HPDF_INT first_page,
const char *prefix)
{
HPDF_Dict obj = HPDF_Dict_New (pdf->mmgr);
HPDF_PTRACE ((" HPDF_PageLabel_New\n"));
if (!obj)
return NULL;
switch (style) {
case HPDF_PAGE_NUM_STYLE_DECIMAL:
if (HPDF_Dict_AddName (obj, "S", "D") != HPDF_OK)
goto Fail;
break;
case HPDF_PAGE_NUM_STYLE_UPPER_ROMAN:
if (HPDF_Dict_AddName (obj, "S", "R") != HPDF_OK)
goto Fail;
break;
case HPDF_PAGE_NUM_STYLE_LOWER_ROMAN:
if (HPDF_Dict_AddName (obj, "S", "r") != HPDF_OK)
goto Fail;
break;
case HPDF_PAGE_NUM_STYLE_UPPER_LETTERS:
if (HPDF_Dict_AddName (obj, "S", "A") != HPDF_OK)
goto Fail;
break;
case HPDF_PAGE_NUM_STYLE_LOWER_LETTERS:
if (HPDF_Dict_AddName (obj, "S", "a") != HPDF_OK)
goto Fail;
break;
default:
HPDF_SetError (&pdf->error, HPDF_PAGE_NUM_STYLE_OUT_OF_RANGE,
(HPDF_STATUS)style);
goto Fail;
}
if (prefix && prefix[0] != 0)
if (HPDF_Dict_Add (obj, "P", HPDF_String_New (pdf->mmgr, prefix,
pdf->def_encoder)) != HPDF_OK)
goto Fail;
if (first_page != 0)
if (HPDF_Dict_AddNumber (obj, "St", first_page) != HPDF_OK)
goto Fail;
return obj;
Fail:
HPDF_Dict_Free (obj);
return NULL;
}
HPDF_MarkupAnnot_SetCloudEffect (HPDF_Annotation annot, HPDF_INT cloudIntensity) /* BE entry */
{
HPDF_Dict borderEffect;
HPDF_STATUS ret = HPDF_OK;
HPDF_PTRACE((" HPDF_MarkupAnnot_SetCloudEffect\n"));
borderEffect = HPDF_Dict_New ( annot->mmgr);
if (!borderEffect)
return HPDF_Error_GetCode ( annot->error);
ret += HPDF_Dict_Add ( annot, "BE", borderEffect);
ret += HPDF_Dict_AddName ( borderEffect, "S", "C");
ret += HPDF_Dict_AddNumber ( borderEffect, "I", cloudIntensity);
if (ret != HPDF_OK)
return HPDF_Error_GetCode (annot->error);
return HPDF_OK;
}
HPDF_STATUS
HPDF_EncryptDict_Prepare (HPDF_EncryptDict dict,
HPDF_Dict info,
HPDF_Xref xref)
{
HPDF_STATUS ret;
HPDF_Encrypt attr = (HPDF_Encrypt)dict->attr;
HPDF_Binary user_key;
HPDF_Binary owner_key;
HPDF_PTRACE((" HPDF_EncryptDict_Prepare\n"));
HPDF_EncryptDict_CreateID (dict, info, xref);
HPDF_Encrypt_CreateOwnerKey (attr);
HPDF_Encrypt_CreateEncryptionKey (attr);
HPDF_Encrypt_CreateUserKey (attr);
owner_key = HPDF_Binary_New (dict->mmgr, attr->owner_key, HPDF_PASSWD_LEN);
if (!owner_key)
return HPDF_Error_GetCode (dict->error);
if ((ret = HPDF_Dict_Add (dict, "O", owner_key)) != HPDF_OK)
return ret;
user_key = HPDF_Binary_New (dict->mmgr, attr->user_key, HPDF_PASSWD_LEN);
if (!user_key)
return HPDF_Error_GetCode (dict->error);
if ((ret = HPDF_Dict_Add (dict, "U", user_key)) != HPDF_OK)
return ret;
ret += HPDF_Dict_AddName (dict, "Filter", "Standard");
if (attr->mode == HPDF_ENCRYPT_R2) {
ret += HPDF_Dict_AddNumber (dict, "V", 1);
ret += HPDF_Dict_AddNumber (dict, "R", 2);
} else if (attr->mode == HPDF_ENCRYPT_R3) {
ret += HPDF_Dict_AddNumber (dict, "V", 2);
ret += HPDF_Dict_AddNumber (dict, "R", 3);
ret += HPDF_Dict_AddNumber (dict, "Length", attr->key_len * 8);
}
ret += HPDF_Dict_AddNumber (dict, "P", attr->permission);
if (ret != HPDF_OK)
return HPDF_Error_GetCode (dict->error);
return HPDF_OK;
}
HPDF_Page_SetRotate (HPDF_Page page,
HPDF_UINT16 angle)
{
HPDF_Number n;
HPDF_STATUS ret = HPDF_OK;
HPDF_PTRACE((" HPDF_Page_SetRotate\n"));
if (!HPDF_Page_Validate (page))
return HPDF_INVALID_PAGE;
if (angle % 90 != 0)
return HPDF_RaiseError (page->error, HPDF_PAGE_INVALID_ROTATE_VALUE,
(HPDF_STATUS)angle);
n = HPDF_Page_GetInheritableItem (page, "Rotate", HPDF_OCLASS_NUMBER);
if (!n)
ret = HPDF_Dict_AddNumber (page, "Rotate", angle);
else
n->value = angle;
return ret;
}
HPDF_EXPORT(HPDF_STATUS) HPDF_3DView_SetCamera(HPDF_Dict view, HPDF_REAL coox, HPDF_REAL cooy, HPDF_REAL cooz, HPDF_REAL c2cx, HPDF_REAL c2cy, HPDF_REAL c2cz, HPDF_REAL roo, HPDF_REAL roll)
{
HPDF_REAL viewx, viewy, viewz;
HPDF_REAL leftx, lefty, leftz;
HPDF_REAL upx, upy, upz;
HPDF_REAL transx, transy, transz;
HPDF_Array matrix;
HPDF_STATUS ret = HPDF_OK;
HPDF_PTRACE ((" HPDF_3DView_SetCamera\n"));
if (view == NULL) {
return HPDF_INVALID_U3D_DATA;
}
/* view vector (opposite to c2c) */
viewx = -c2cx;
viewy = -c2cy;
viewz = -c2cz;
/* c2c = (0, -1, 0) by default */
if (viewx == 0.0 && viewy == 0.0 && viewz == 0.0) {
viewy = 1.0;
}
/* normalize view vector */
normalize(viewx, viewy, viewz);
/* rotation matrix */
/* top and bottom views */
leftx = -1.0f;
lefty = 0.0f;
leftz = 0.0f;
/* up-vector */
if (viewz < 0.0) /* top view*/
{
upx = 0.0f;
upy = 1.0f;
upz = 0.0f;
}
else /* bottom view*/
{
upx = 0.0f;
upy =-1.0f;
upz = 0.0f;
}
if ( fabs(viewx) + fabs(viewy) != 0.0f) /* other views than top and bottom*/
{
/* up-vector = up_world - (up_world dot view) view*/
upx = -viewz*viewx;
upy = -viewz*viewy;
upz = -viewz*viewz + 1.0f;
/* normalize up-vector*/
normalize(upx, upy, upz);
/* left vector = up x view*/
leftx = viewz*upy - viewy*upz;
lefty = viewx*upz - viewz*upx;
leftz = viewy*upx - viewx*upy;
/* normalize left vector*/
normalize(leftx, lefty, leftz);
}
/* apply camera roll*/
{
HPDF_REAL leftxprime, leftyprime, leftzprime;
HPDF_REAL upxprime, upyprime, upzprime;
HPDF_REAL sinroll, cosroll;
sinroll = sin((roll/180.0f)*M_PI);
cosroll = cos((roll/180.0f)*M_PI);
leftxprime = leftx*cosroll + upx*sinroll;
leftyprime = lefty*cosroll + upy*sinroll;
leftzprime = leftz*cosroll + upz*sinroll;
upxprime = upx*cosroll + leftx*sinroll;
upyprime = upy*cosroll + lefty*sinroll;
upzprime = upz*cosroll + leftz*sinroll;
leftx = leftxprime;
lefty = leftyprime;
leftz = leftzprime;
upx = upxprime;
upy = upyprime;
upz = upzprime;
}
/* translation vector*/
roo = fabs(roo);
if (roo == 0.0) {
roo = 0.000000000000000001;
}
transx = coox - roo*viewx;
transy = cooy - roo*viewy;
transz = cooz - roo*viewz;
/* transformation matrix*/
matrix = HPDF_Array_New (view->mmgr);
if (!matrix) {
return HPDF_Error_GetCode (view->error);
}
ret = HPDF_Array_AddReal (matrix, leftx);
if (ret != HPDF_OK) goto failed;
ret = HPDF_Array_AddReal (matrix, lefty);
if (ret != HPDF_OK) goto failed;
ret = HPDF_Array_AddReal (matrix, leftz);
if (ret != HPDF_OK) goto failed;
ret = HPDF_Array_AddReal (matrix, upx);
if (ret != HPDF_OK) goto failed;
ret = HPDF_Array_AddReal (matrix, upy);
if (ret != HPDF_OK) goto failed;
ret = HPDF_Array_AddReal (matrix, upz);
if (ret != HPDF_OK) goto failed;
ret = HPDF_Array_AddReal (matrix, viewx);
if (ret != HPDF_OK) goto failed;
ret = HPDF_Array_AddReal (matrix, viewy);
if (ret != HPDF_OK) goto failed;
ret = HPDF_Array_AddReal (matrix, viewz);
if (ret != HPDF_OK) goto failed;
ret = HPDF_Array_AddReal (matrix, transx);
if (ret != HPDF_OK) goto failed;
ret = HPDF_Array_AddReal (matrix, transy);
if (ret != HPDF_OK) goto failed;
ret = HPDF_Array_AddReal (matrix, transz);
if (ret != HPDF_OK) goto failed;
ret = HPDF_Dict_AddName (view, "MS", "M");
if (ret != HPDF_OK) goto failed;
ret = HPDF_Dict_Add (view, "C2W", matrix);
if (ret != HPDF_OK) goto failed;
ret = HPDF_Dict_AddNumber (view, "CO", roo);
failed:
if (ret != HPDF_OK) {
HPDF_Array_Free (matrix);
return ret;
}
return ret;
}
static HPDF_Font
CIDFontType2_New (HPDF_Font parent, HPDF_Xref xref)
{
HPDF_STATUS ret = HPDF_OK;
HPDF_FontAttr attr = (HPDF_FontAttr)parent->attr;
HPDF_FontDef fontdef = attr->fontdef;
HPDF_Encoder encoder = attr->encoder;
HPDF_CMapEncoderAttr encoder_attr =
(HPDF_CMapEncoderAttr)encoder->attr;
HPDF_Font font;
HPDF_Array array;
HPDF_Dict cid_system_info;
HPDF_PTRACE ((" HPDF_CIDFontType2_New\n"));
font = HPDF_Dict_New (parent->mmgr);
if (!font)
return NULL;
if (HPDF_Xref_Add (xref, font) != HPDF_OK)
return NULL;
parent->before_write_fn = CIDFontType2_BeforeWrite_Func;
ret += HPDF_Dict_AddName (font, "Type", "Font");
ret += HPDF_Dict_AddName (font, "Subtype", "CIDFontType2");
ret += HPDF_Dict_AddNumber (font, "DW", fontdef->missing_width);
if (ret != HPDF_OK)
return NULL;
/* add 'DW2' element */
array = HPDF_Array_New (font->mmgr);
if (!array)
return NULL;
if (HPDF_Dict_Add (font, "DW2", array) != HPDF_OK)
return NULL;
ret += HPDF_Array_AddNumber (array, (HPDF_INT32)(fontdef->font_bbox.bottom));
ret += HPDF_Array_AddNumber (array, (HPDF_INT32)(fontdef->font_bbox.bottom -
fontdef->font_bbox.top));
/* create CIDSystemInfo dictionary */
cid_system_info = HPDF_Dict_New (parent->mmgr);
if (!cid_system_info)
return NULL;
if (HPDF_Dict_Add (font, "CIDSystemInfo", cid_system_info) != HPDF_OK)
return NULL;
ret += HPDF_Dict_Add (cid_system_info, "Registry",
HPDF_String_New (parent->mmgr, encoder_attr->registry, NULL));
ret += HPDF_Dict_Add (cid_system_info, "Ordering",
HPDF_String_New (parent->mmgr, encoder_attr->ordering, NULL));
ret += HPDF_Dict_AddNumber (cid_system_info, "Supplement",
encoder_attr->suppliment);
if (ret != HPDF_OK)
return NULL;
return font;
}
HPDF_Shading_New (HPDF_Doc pdf,
HPDF_ShadingType type,
HPDF_ColorSpace colorSpace,
HPDF_REAL xMin, HPDF_REAL xMax,
HPDF_REAL yMin, HPDF_REAL yMax)
{
HPDF_Shading shading;
HPDF_Array decodeArray;
HPDF_STATUS ret = HPDF_OK;
int i;
HPDF_PTRACE((" HPDF_Shading_New\n"));
if (!HPDF_HasDoc(pdf)) {
return NULL;
}
/* Validate shading type: */
switch (type)
{
case HPDF_SHADING_FREE_FORM_TRIANGLE_MESH:
break;
default:
HPDF_SetError (pdf->mmgr->error, HPDF_INVALID_SHADING_TYPE, 0);
return NULL;
}
decodeArray = HPDF_Array_New(pdf->mmgr);
if (!decodeArray) {
return NULL;
}
/* X-range */
ret += HPDF_Array_AddReal(decodeArray, xMin);
ret += HPDF_Array_AddReal(decodeArray, xMax);
/* Y-range */
ret += HPDF_Array_AddReal(decodeArray, yMin);
ret += HPDF_Array_AddReal(decodeArray, yMax);
const char *colName = NULL;
switch (colorSpace) {
case HPDF_CS_DEVICE_RGB:
colName = COL_RGB;
for (i = 0; i < 3; ++i) {
ret += HPDF_Array_AddReal(decodeArray, 0.0);
ret += HPDF_Array_AddReal(decodeArray, 1.0);
}
break;
default:
HPDF_SetError(pdf->mmgr->error, HPDF_INVALID_COLOR_SPACE, 0);
return NULL;
}
if (ret != HPDF_OK) {
return NULL;
}
shading = HPDF_DictStream_New(pdf->mmgr, pdf->xref);
if (!shading) {
return NULL;
}
shading->header.obj_class |= HPDF_OSUBCLASS_SHADING;
ret += HPDF_Dict_AddNumber(shading, "ShadingType", type);
ret += HPDF_Dict_AddName(shading, "ColorSpace", colName);
switch (type)
{
case HPDF_SHADING_FREE_FORM_TRIANGLE_MESH:
ret += HPDF_Dict_AddNumber(shading, "BitsPerCoordinate", 32);
ret += HPDF_Dict_AddNumber(shading, "BitsPerComponent", 8);
ret += HPDF_Dict_AddNumber(shading, "BitsPerFlag", 8);
ret += HPDF_Dict_Add(shading, "Decode", decodeArray);
break;
default:
HPDF_SetError (pdf->mmgr->error, HPDF_INVALID_SHADING_TYPE, 0);
return NULL;
}
if (ret != HPDF_OK) {
return NULL;
}
return shading;
}
HPDF_Image
HPDF_Image_LoadRawImageFromMem (HPDF_MMgr mmgr,
const HPDF_BYTE *buf,
HPDF_Xref xref,
HPDF_UINT width,
HPDF_UINT height,
HPDF_ColorSpace color_space,
HPDF_UINT bits_per_component)
{
HPDF_Dict image;
HPDF_STATUS ret = HPDF_OK;
HPDF_UINT size=0;
HPDF_PTRACE ((" HPDF_Image_LoadRawImageFromMem\n"));
if (color_space != HPDF_CS_DEVICE_GRAY &&
color_space != HPDF_CS_DEVICE_RGB &&
color_space != HPDF_CS_DEVICE_CMYK) {
HPDF_SetError (mmgr->error, HPDF_INVALID_COLOR_SPACE, 0);
return NULL;
}
if (bits_per_component != 1 && bits_per_component != 2 &&
bits_per_component != 4 && bits_per_component != 8) {
HPDF_SetError (mmgr->error, HPDF_INVALID_IMAGE, 0);
return NULL;
}
image = HPDF_DictStream_New (mmgr, xref);
if (!image)
return NULL;
image->header.obj_class |= HPDF_OSUBCLASS_XOBJECT;
ret += HPDF_Dict_AddName (image, "Type", "XObject");
ret += HPDF_Dict_AddName (image, "Subtype", "Image");
if (ret != HPDF_OK)
return NULL;
switch (color_space) {
case HPDF_CS_DEVICE_GRAY:
size = (HPDF_UINT)((HPDF_DOUBLE)width * height / (8 / bits_per_component) + 0.876);
ret = HPDF_Dict_AddName (image, "ColorSpace", COL_GRAY);
break;
case HPDF_CS_DEVICE_RGB:
size = (HPDF_UINT)((HPDF_DOUBLE)width * height / (8 / bits_per_component) + 0.876);
size *= 3;
ret = HPDF_Dict_AddName (image, "ColorSpace", COL_RGB);
break;
case HPDF_CS_DEVICE_CMYK:
size = (HPDF_UINT)((HPDF_DOUBLE)width * height / (8 / bits_per_component) + 0.876);
size *= 4;
ret = HPDF_Dict_AddName (image, "ColorSpace", COL_CMYK);
break;
default:;
}
if (ret != HPDF_OK)
return NULL;
if (HPDF_Dict_AddNumber (image, "Width", width) != HPDF_OK)
return NULL;
if (HPDF_Dict_AddNumber (image, "Height", height) != HPDF_OK)
return NULL;
if (HPDF_Dict_AddNumber (image, "BitsPerComponent", bits_per_component)
!= HPDF_OK)
return NULL;
if (HPDF_Stream_Write (image->stream, buf, size) != HPDF_OK)
return NULL;
return image;
}
static HPDF_STATUS
LoadJpegHeader (HPDF_Image image,
HPDF_Stream stream)
{
HPDF_UINT16 tag;
HPDF_UINT16 height;
HPDF_UINT16 width;
HPDF_BYTE precision;
HPDF_BYTE num_components;
const char *color_space_name;
HPDF_UINT len;
HPDF_STATUS ret;
HPDF_Array array;
HPDF_PTRACE ((" HPDF_Image_LoadJpegHeader\n"));
len = 2;
if (HPDF_Stream_Read (stream, (HPDF_BYTE *)&tag, &len) != HPDF_OK)
return HPDF_Error_GetCode (stream->error);
HPDF_UInt16Swap (&tag);
if (tag != 0xFFD8)
return HPDF_INVALID_JPEG_DATA;
/* find SOF record */
for (;;) {
HPDF_UINT16 size;
len = 2;
if (HPDF_Stream_Read (stream, (HPDF_BYTE *)&tag, &len) != HPDF_OK)
return HPDF_Error_GetCode (stream->error);
HPDF_UInt16Swap (&tag);
len = 2;
if (HPDF_Stream_Read (stream, (HPDF_BYTE *)&size, &len) != HPDF_OK)
return HPDF_Error_GetCode (stream->error);
HPDF_UInt16Swap (&size);
HPDF_PTRACE (("tag=%04X size=%u\n", tag, size));
if (tag == 0xFFC0 || tag == 0xFFC1 ||
tag == 0xFFC2 || tag == 0xFFC9) {
len = 1;
if (HPDF_Stream_Read (stream, (HPDF_BYTE *)&precision, &len) !=
HPDF_OK)
return HPDF_Error_GetCode (stream->error);
len = 2;
if (HPDF_Stream_Read (stream, (HPDF_BYTE *)&height, &len) !=
HPDF_OK)
return HPDF_Error_GetCode (stream->error);
HPDF_UInt16Swap (&height);
len = 2;
if (HPDF_Stream_Read (stream, (HPDF_BYTE *)&width, &len) != HPDF_OK)
return HPDF_Error_GetCode (stream->error);
HPDF_UInt16Swap (&width);
len = 1;
if (HPDF_Stream_Read (stream, (HPDF_BYTE *)&num_components, &len) !=
HPDF_OK)
return HPDF_Error_GetCode (stream->error);
break;
} else if ((tag | 0x00FF) != 0xFFFF)
/* lost marker */
return HPDF_SetError (image->error, HPDF_UNSUPPORTED_JPEG_FORMAT,
0);
if (HPDF_Stream_Seek (stream, size - 2, HPDF_SEEK_CUR) != HPDF_OK)
return HPDF_Error_GetCode (stream->error);
}
if (HPDF_Dict_AddNumber (image, "Height", height) != HPDF_OK)
return HPDF_Error_GetCode (stream->error);
if (HPDF_Dict_AddNumber (image, "Width", width) != HPDF_OK)
return HPDF_Error_GetCode (stream->error);
/* classification of RGB and CMYK is less than perfect
* YCbCr and YCCK are classified into RGB or CMYK.
*
* It is necessary to read APP14 data to distinguish colorspace perfectly.
*/
switch (num_components) {
case 1:
color_space_name = COL_GRAY;
break;
case 3:
color_space_name = COL_RGB;
break;
case 4:
array = HPDF_Array_New (image->mmgr);
if (!array)
return HPDF_Error_GetCode (stream->error);
ret = HPDF_Dict_Add (image, "Decode", array);
if (ret != HPDF_OK)
return HPDF_Error_GetCode (stream->error);
ret += HPDF_Array_Add (array, HPDF_Number_New (image->mmgr, 1));
ret += HPDF_Array_Add (array, HPDF_Number_New (image->mmgr, 0));
ret += HPDF_Array_Add (array, HPDF_Number_New (image->mmgr, 1));
ret += HPDF_Array_Add (array, HPDF_Number_New (image->mmgr, 0));
ret += HPDF_Array_Add (array, HPDF_Number_New (image->mmgr, 1));
ret += HPDF_Array_Add (array, HPDF_Number_New (image->mmgr, 0));
ret += HPDF_Array_Add (array, HPDF_Number_New (image->mmgr, 1));
ret += HPDF_Array_Add (array, HPDF_Number_New (image->mmgr, 0));
if (ret != HPDF_OK)
return HPDF_Error_GetCode (stream->error);
color_space_name = COL_CMYK;
break;
default:
return HPDF_SetError (image->error, HPDF_UNSUPPORTED_JPEG_FORMAT,
0);
}
if (HPDF_Dict_Add (image, "ColorSpace",
HPDF_Name_New (image->mmgr, color_space_name)) != HPDF_OK)
return HPDF_Error_GetCode (stream->error);
if (HPDF_Dict_Add (image, "BitsPerComponent",
HPDF_Number_New (image->mmgr, precision)) != HPDF_OK)
return HPDF_Error_GetCode (stream->error);
return HPDF_OK;
}
static HPDF_STATUS
Type1Font_CreateDescriptor (HPDF_MMgr mmgr,
HPDF_Font font,
HPDF_Xref xref)
{
HPDF_FontAttr font_attr = (HPDF_FontAttr)font->attr;
HPDF_FontDef def = font_attr->fontdef;
HPDF_Type1FontDefAttr def_attr = (HPDF_Type1FontDefAttr)def->attr;
HPDF_PTRACE ((" HPDF_Type1Font_CreateDescriptor\n"));
if (!font_attr->fontdef->descriptor) {
HPDF_Dict descriptor = HPDF_Dict_New (mmgr);
HPDF_STATUS ret = 0;
HPDF_Array array;
if (!descriptor)
return HPDF_Error_GetCode (font->error);
ret += HPDF_Xref_Add (xref, descriptor);
ret += HPDF_Dict_AddName (descriptor, "Type", "FontDescriptor");
ret += HPDF_Dict_AddNumber (descriptor, "Ascent", def->ascent);
ret += HPDF_Dict_AddNumber (descriptor, "Descent", def->descent);
if (def->cap_height)
{
ret += HPDF_Dict_AddNumber (descriptor, "CapHeight", def->cap_height);
}
ret += HPDF_Dict_AddNumber (descriptor, "Flags", def->flags);
array = HPDF_Box_Array_New (mmgr, def->font_bbox);
ret += HPDF_Dict_Add (descriptor, "FontBBox", array);
if(strncmp (font_attr->fontdef->base_font, "HPDF_", 5) == 0 && font_attr->fontdef->is_form_font == HPDF_TRUE)
{
ret += HPDF_Dict_AddName (descriptor, "FontName",
font_attr->fontdef->base_font + 5);
}
else
{
ret += HPDF_Dict_AddName (descriptor, "FontName",
font_attr->fontdef->base_font);
}
ret += HPDF_Dict_AddNumber (descriptor, "ItalicAngle",
def->italic_angle);
ret += HPDF_Dict_AddNumber (descriptor, "StemV", def->stemv);
ret += HPDF_Dict_AddNumber (descriptor, "XHeight", def->x_height);
if (def_attr->char_set)
ret += HPDF_Dict_AddName (descriptor, "CharSet",
def_attr->char_set);
if (ret != HPDF_OK)
return HPDF_Error_GetCode (font->error);
if (def_attr->font_data) {
HPDF_Dict font_data = HPDF_DictStream_New (mmgr, xref);
if (!font_data)
return HPDF_Error_GetCode (font->error);
if (HPDF_Stream_WriteToStream (def_attr->font_data,
font_data->stream, HPDF_STREAM_FILTER_NONE, NULL) != HPDF_OK)
return HPDF_Error_GetCode (font->error);
ret += HPDF_Dict_Add (descriptor, "FontFile", font_data);
ret += HPDF_Dict_AddNumber (font_data, "Length1",
def_attr->length1);
ret += HPDF_Dict_AddNumber (font_data, "Length2",
def_attr->length2);
ret += HPDF_Dict_AddNumber (font_data, "Length3",
def_attr->length3);
font_data->filter = font->filter;
}
if (ret != HPDF_OK)
return HPDF_Error_GetCode (font->error);
font_attr->fontdef->descriptor = descriptor;
}
return HPDF_Dict_Add (font, "FontDescriptor",
font_attr->fontdef->descriptor);
}
HPDF_Annotation
HPDF_3DAnnot_New (HPDF_MMgr mmgr,
HPDF_Xref xref,
HPDF_Rect rect,
HPDF_BOOL tb,
HPDF_BOOL np,
HPDF_U3D u3d,
HPDF_Image ap)
{
HPDF_Annotation annot;
HPDF_Dict action, appearance, stream;
HPDF_STATUS ret;
HPDF_PTRACE((" HPDF_3DAnnot_New\n"));
annot = HPDF_Annotation_New (mmgr, xref, HPDF_ANNOT_3D, rect);
if (!annot) {
return NULL;
}
// include the flags
HPDF_Dict_AddNumber (annot, "F", 68);
//Bit 3:Print If set, print the annotation when the page is printed.
//Bit 7:If set, do not allow the annotation to interact with the user.
// The annotation may be displayed or printed (depending on the settings of the NoView and Print flags)
// but should not respond to mouse clicks or change its appearance in response to mouse motions.
HPDF_Dict_Add(annot, "Contents", HPDF_String_New (mmgr, "3D Model", NULL));
action = HPDF_Dict_New (mmgr);
if (!action) {
return NULL;
}
ret = HPDF_Dict_Add (annot, "3DA", action);
if (ret != HPDF_OK) {
return NULL;
}
// enable visibility on page open
ret += HPDF_Dict_AddName (action, "A", "PO");
// enable visibility of ToolBar
ret += HPDF_Dict_AddBoolean(action, "TB", tb);
// enable visibility of Navigation Panel
ret += HPDF_Dict_AddBoolean(action, "NP", np);
// Set behavior of Annotation on Disabling
ret += HPDF_Dict_AddName(action, "DIS", "U");
// Set behavior of Annotation upon activation
ret += HPDF_Dict_AddName(action, "AIS", "L");
if (ret != HPDF_OK) {
return NULL;
}
if (HPDF_Dict_Add (annot, "3DD", u3d) != HPDF_OK) {
return NULL;
}
appearance = HPDF_Dict_New (mmgr);
if (!appearance) {
return NULL;
}
ret = HPDF_Dict_Add (annot, "AP", appearance);
if (ret != HPDF_OK) {
return NULL;
}
if (ap) {
if (HPDF_Dict_Add (appearance, "N", ap) != HPDF_OK)
return NULL;
}
else{
stream = HPDF_Dict_New (mmgr);
if (!stream) {
return NULL;
}
ret = HPDF_Dict_Add (appearance, "N", stream);
}
if (ret != HPDF_OK) {
return NULL;
}
return annot;
}
HPDF_Font
HPDF_TTFont_New (HPDF_MMgr mmgr,
HPDF_FontDef fontdef,
HPDF_Encoder encoder,
HPDF_Xref xref)
{
HPDF_Dict font;
HPDF_FontAttr attr;
HPDF_TTFontDefAttr fontdef_attr;
HPDF_BasicEncoderAttr encoder_attr;
HPDF_STATUS ret = 0;
HPDF_PTRACE ((" HPDF_TTFont_New\n"));
font = HPDF_Dict_New (mmgr);
if (!font)
return NULL;
font->header.obj_class |= HPDF_OSUBCLASS_FONT;
/* check whether the fontdef object and the encoder object is valid. */
if (encoder->type != HPDF_ENCODER_TYPE_SINGLE_BYTE) {
HPDF_SetError(font->error, HPDF_INVALID_ENCODER_TYPE, 0);
return NULL;
}
if (fontdef->type != HPDF_FONTDEF_TYPE_TRUETYPE) {
HPDF_SetError(font->error, HPDF_INVALID_FONTDEF_TYPE, 0);
return NULL;
}
attr = (HPDF_FontAttr)HPDF_GetMem (mmgr, sizeof(HPDF_FontAttr_Rec));
if (!attr) {
HPDF_Dict_Free (font);
return NULL;
}
HPDF_MemSet (attr, 0, sizeof(HPDF_FontAttr_Rec));
font->header.obj_class |= HPDF_OSUBCLASS_FONT;
font->write_fn = OnWrite;
font->before_write_fn = BeforeWrite;
font->free_fn = OnFree;
font->attr = attr;
attr->type = HPDF_FONT_TRUETYPE;
attr->writing_mode = HPDF_WMODE_HORIZONTAL;
attr->text_width_fn = TextWidth;
attr->measure_text_fn = MeasureText;
attr->fontdef = fontdef;
attr->encoder = encoder;
attr->xref = xref;
/* singlebyte-font has a widths-array which is an array of 256 signed
* short integer.
* in the case of type1-font, widths-array for all letters is made in
* constructer. but in the case of true-type-font, the array is
* initialized at 0, and set when the corresponding character was used
* for the first time.
*/
attr->widths = (HPDF_INT16*)HPDF_GetMem (mmgr, sizeof(HPDF_INT16) * 256);
if (!attr->widths) {
HPDF_Dict_Free (font);
return NULL;
}
HPDF_MemSet (attr->widths, 0, sizeof(HPDF_INT16) * 256);
attr->used = (HPDF_BYTE*)HPDF_GetMem (mmgr, sizeof(HPDF_BYTE) * 256);
if (!attr->used) {
HPDF_Dict_Free (font);
return NULL;
}
HPDF_MemSet (attr->used, 0, sizeof(HPDF_BYTE) * 256);
fontdef_attr = (HPDF_TTFontDefAttr)fontdef->attr;
ret += HPDF_Dict_AddName (font, "Type", "Font");
ret += HPDF_Dict_AddName (font, "BaseFont", fontdef_attr->base_font);
ret += HPDF_Dict_AddName (font, "Subtype", "TrueType");
encoder_attr = (HPDF_BasicEncoderAttr)encoder->attr;
ret += HPDF_Dict_AddNumber (font, "FirstChar", encoder_attr->first_char);
ret += HPDF_Dict_AddNumber (font, "LastChar", encoder_attr->last_char);
if (fontdef->missing_width != 0)
ret += HPDF_Dict_AddNumber (font, "MissingWidth",
fontdef->missing_width);
if (ret != HPDF_OK) {
HPDF_Dict_Free (font);
return NULL;
}
if (HPDF_Xref_Add (xref, font) != HPDF_OK)
return NULL;
return font;
}
static HPDF_STATUS
CreateDescriptor (HPDF_Font font)
{
HPDF_FontAttr font_attr = (HPDF_FontAttr)font->attr;
HPDF_FontDef def = font_attr->fontdef;
HPDF_TTFontDefAttr def_attr = (HPDF_TTFontDefAttr)def->attr;
HPDF_PTRACE ((" HPDF_TTFont_CreateDescriptor\n"));
if (!font_attr->fontdef->descriptor) {
HPDF_Dict descriptor = HPDF_Dict_New (font->mmgr);
HPDF_STATUS ret = 0;
HPDF_Array array;
if (!descriptor)
return HPDF_Error_GetCode (font->error);
ret += HPDF_Xref_Add (font_attr->xref, descriptor);
ret += HPDF_Dict_AddName (descriptor, "Type", "FontDescriptor");
ret += HPDF_Dict_AddNumber (descriptor, "Ascent", def->ascent);
ret += HPDF_Dict_AddNumber (descriptor, "Descent", def->descent);
ret += HPDF_Dict_AddNumber (descriptor, "Flags", def->flags);
array = HPDF_Box_Array_New (font->mmgr, def->font_bbox);
ret += HPDF_Dict_Add (descriptor, "FontBBox", array);
ret += HPDF_Dict_AddName (descriptor, "FontName", def_attr->base_font);
ret += HPDF_Dict_AddNumber (descriptor, "ItalicAngle",
def->italic_angle);
ret += HPDF_Dict_AddNumber (descriptor, "StemV", def->stemv);
ret += HPDF_Dict_AddNumber (descriptor, "XHeight", def->x_height);
if (def_attr->char_set)
ret += HPDF_Dict_AddName (descriptor, "CharSet",
def_attr->char_set);
if (ret != HPDF_OK)
return HPDF_Error_GetCode (font->error);
if (def_attr->embedding) {
HPDF_Dict font_data = HPDF_DictStream_New (font->mmgr,
font_attr->xref);
if (!font_data)
return HPDF_Error_GetCode (font->error);
if (HPDF_TTFontDef_SaveFontData (font_attr->fontdef,
font_data->stream) != HPDF_OK)
return HPDF_Error_GetCode (font->error);
ret += HPDF_Dict_Add (descriptor, "FontFile2", font_data);
ret += HPDF_Dict_AddNumber (font_data, "Length1",
def_attr->length1);
ret += HPDF_Dict_AddNumber (font_data, "Length2", 0);
ret += HPDF_Dict_AddNumber (font_data, "Length3", 0);
font_data->filter = font->filter;
}
if (ret != HPDF_OK)
return HPDF_Error_GetCode (font->error);
font_attr->fontdef->descriptor = descriptor;
}
return HPDF_Dict_Add (font, "FontDescriptor",
font_attr->fontdef->descriptor);
}
HPDF_Font
HPDF_Type1Font_New (HPDF_MMgr mmgr,
HPDF_FontDef fontdef,
HPDF_Encoder encoder,
HPDF_Xref xref)
{
HPDF_Dict font;
HPDF_FontAttr attr;
HPDF_Type1FontDefAttr fontdef_attr;
HPDF_BasicEncoderAttr encoder_attr;
HPDF_STATUS ret = 0;
HPDF_UINT i;
HPDF_PTRACE ((" HPDF_Type1Font_New\n"));
/* check whether the fontdef object and the encoder object is valid. */
if (encoder->type != HPDF_ENCODER_TYPE_SINGLE_BYTE) {
HPDF_SetError(mmgr->error, HPDF_INVALID_ENCODER_TYPE, 0);
return NULL;
}
if (fontdef->type != HPDF_FONTDEF_TYPE_TYPE1) {
HPDF_SetError(mmgr->error, HPDF_INVALID_FONTDEF_TYPE, 0);
return NULL;
}
font = HPDF_Dict_New (mmgr);
if (!font)
return NULL;
font->header.obj_class |= HPDF_OSUBCLASS_FONT;
attr = HPDF_GetMem (mmgr, sizeof(HPDF_FontAttr_Rec));
if (!attr) {
HPDF_Dict_Free (font);
return NULL;
}
font->header.obj_class |= HPDF_OSUBCLASS_FONT;
font->write_fn = Type1Font_OnWrite;
font->free_fn = Type1Font_OnFree;
HPDF_MemSet (attr, 0, sizeof(HPDF_FontAttr_Rec));
font->attr = attr;
attr->type = HPDF_FONT_TYPE1;
attr->writing_mode = HPDF_WMODE_HORIZONTAL;
attr->text_width_fn = Type1Font_TextWidth;
attr->measure_text_fn = Type1Font_MeasureText;
attr->fontdef = fontdef;
attr->encoder = encoder;
attr->xref = xref;
/* singlebyte-font has a widths-array which is an array of 256 signed
* short integer.
*/
attr->widths = HPDF_GetMem (mmgr, sizeof(HPDF_INT16) * 256);
if (!attr->widths) {
HPDF_Dict_Free (font);
return NULL;
}
encoder_attr = (HPDF_BasicEncoderAttr)encoder->attr;
HPDF_MemSet (attr->widths, 0, sizeof(HPDF_INT16) * 256);
for (i = encoder_attr->first_char; i <= encoder_attr->last_char; i++) {
HPDF_UNICODE u = encoder_attr->unicode_map[i];
HPDF_UINT16 w = HPDF_Type1FontDef_GetWidth (fontdef, u);
attr->widths[i] = w;
}
fontdef_attr = (HPDF_Type1FontDefAttr)fontdef->attr;
if(strncmp (fontdef->base_font, "HPDF_", 5) == 0 && fontdef->is_form_font == HPDF_TRUE)
{
ret += HPDF_Dict_AddName (font, "Type", "Font");
ret += HPDF_Dict_AddName (font, "BaseFont", fontdef->base_font + 5);
ret += HPDF_Dict_AddName (font, "Subtype", "TrueType");
}
else{
ret += HPDF_Dict_AddName (font, "Type", "Font");
ret += HPDF_Dict_AddName (font, "BaseFont", fontdef->base_font);
ret += HPDF_Dict_AddName (font, "Subtype", "Type1");
}
if (!fontdef_attr->is_base14font) {
if (fontdef->missing_width != 0)
ret += HPDF_Dict_AddNumber (font, "MissingWidth",
fontdef->missing_width);
ret += Type1Font_CreateDescriptor (mmgr, font, xref);
}
if (ret != HPDF_OK) {
HPDF_Dict_Free (font);
return NULL;
}
if (HPDF_Xref_Add (xref, font) != HPDF_OK)
return NULL;
return font;
}
static HPDF_Font
CIDFontType0_New (HPDF_Font parent, HPDF_Xref xref)
{
HPDF_STATUS ret = HPDF_OK;
HPDF_FontAttr attr = (HPDF_FontAttr)parent->attr;
HPDF_FontDef fontdef = attr->fontdef;
HPDF_CIDFontDefAttr fontdef_attr = (HPDF_CIDFontDefAttr)fontdef->attr;
HPDF_Encoder encoder = attr->encoder;
HPDF_CMapEncoderAttr encoder_attr =
(HPDF_CMapEncoderAttr)encoder->attr;
HPDF_UINT16 save_cid = 0;
HPDF_Font font;
HPDF_Array array;
HPDF_Array sub_array = NULL;
HPDF_UINT i;
HPDF_Dict descriptor;
HPDF_Dict cid_system_info;
HPDF_PTRACE ((" HPDF_CIDFontType0_New\n"));
font = HPDF_Dict_New (parent->mmgr);
if (!font)
return NULL;
if (HPDF_Xref_Add (xref, font) != HPDF_OK)
return NULL;
ret += HPDF_Dict_AddName (font, "Type", "Font");
ret += HPDF_Dict_AddName (font, "Subtype", "CIDFontType0");
ret += HPDF_Dict_AddNumber (font, "DW", fontdef_attr->DW);
ret += HPDF_Dict_AddName (font, "BaseFont", fontdef->base_font);
if (ret != HPDF_OK)
return NULL;
/* add 'DW2' element */
array = HPDF_Array_New (parent->mmgr);
if (!array)
return NULL;
if (HPDF_Dict_Add (font, "DW2", array) != HPDF_OK)
return NULL;
ret += HPDF_Array_AddNumber (array, fontdef_attr->DW2[0]);
ret += HPDF_Array_AddNumber (array, fontdef_attr->DW2[1]);
if (ret != HPDF_OK)
return NULL;
/* add 'W' element */
array = HPDF_Array_New (parent->mmgr);
if (!array)
return NULL;
if (HPDF_Dict_Add (font, "W", array) != HPDF_OK)
return NULL;
/* Create W array. */
for (i = 0; i< fontdef_attr->widths->count; i++) {
HPDF_CID_Width *w =
(HPDF_CID_Width *)HPDF_List_ItemAt (fontdef_attr->widths, i);
if (w->cid != save_cid + 1 || !sub_array) {
sub_array = HPDF_Array_New (parent->mmgr);
if (!sub_array)
return NULL;
ret += HPDF_Array_AddNumber (array, w->cid);
ret += HPDF_Array_Add (array, sub_array);
}
ret += HPDF_Array_AddNumber (sub_array, w->width);
save_cid = w->cid;
if (ret != HPDF_OK)
return NULL;
}
/* create descriptor */
descriptor = HPDF_Dict_New (parent->mmgr);
if (!descriptor)
return NULL;
if (HPDF_Xref_Add (xref, descriptor) != HPDF_OK)
return NULL;
if (HPDF_Dict_Add (font, "FontDescriptor", descriptor) != HPDF_OK)
return NULL;
ret += HPDF_Dict_AddName (descriptor, "Type", "FontDescriptor");
ret += HPDF_Dict_AddName (descriptor, "FontName", fontdef->base_font);
ret += HPDF_Dict_AddNumber (descriptor, "Ascent", fontdef->ascent);
ret += HPDF_Dict_AddNumber (descriptor, "Descent", fontdef->descent);
ret += HPDF_Dict_AddNumber (descriptor, "CapHeight",
fontdef->cap_height);
ret += HPDF_Dict_AddNumber (descriptor, "MissingWidth",
fontdef->missing_width);
ret += HPDF_Dict_AddNumber (descriptor, "Flags", fontdef->flags);
if (ret != HPDF_OK)
return NULL;
array = HPDF_Box_Array_New (parent->mmgr, fontdef->font_bbox);
if (!array)
return NULL;
ret += HPDF_Dict_Add (descriptor, "FontBBox", array);
ret += HPDF_Dict_AddNumber (descriptor, "ItalicAngle",
fontdef->italic_angle);
ret += HPDF_Dict_AddNumber (descriptor, "StemV", fontdef->stemv);
if (ret != HPDF_OK)
return NULL;
/* create CIDSystemInfo dictionary */
cid_system_info = HPDF_Dict_New (parent->mmgr);
if (!cid_system_info)
return NULL;
if (HPDF_Dict_Add (font, "CIDSystemInfo", cid_system_info) != HPDF_OK)
return NULL;
ret += HPDF_Dict_Add (cid_system_info, "Registry",
HPDF_String_New (parent->mmgr, encoder_attr->registry, NULL));
ret += HPDF_Dict_Add (cid_system_info, "Ordering",
HPDF_String_New (parent->mmgr, encoder_attr->ordering, NULL));
ret += HPDF_Dict_AddNumber (cid_system_info, "Supplement",
encoder_attr->suppliment);
if (ret != HPDF_OK)
return NULL;
return font;
}
HPDF_Image
HPDF_Image_LoadRawImage (HPDF_MMgr mmgr,
HPDF_Stream raw_data,
HPDF_Xref xref,
HPDF_UINT width,
HPDF_UINT height,
HPDF_ColorSpace color_space)
{
HPDF_Dict image;
HPDF_STATUS ret = HPDF_OK;
HPDF_UINT size;
HPDF_PTRACE ((" HPDF_Image_LoadRawImage\n"));
if (color_space != HPDF_CS_DEVICE_GRAY &&
color_space != HPDF_CS_DEVICE_RGB &&
color_space != HPDF_CS_DEVICE_CMYK) {
HPDF_SetError (mmgr->error, HPDF_INVALID_COLOR_SPACE, 0);
return NULL;
}
image = HPDF_DictStream_New (mmgr, xref);
if (!image)
return NULL;
image->header.obj_class |= HPDF_OSUBCLASS_XOBJECT;
ret += HPDF_Dict_AddName (image, "Type", "XObject");
ret += HPDF_Dict_AddName (image, "Subtype", "Image");
if (ret != HPDF_OK)
return NULL;
if (color_space == HPDF_CS_DEVICE_GRAY) {
size = width * height;
ret = HPDF_Dict_AddName (image, "ColorSpace", COL_GRAY);
} else if (color_space == HPDF_CS_DEVICE_CMYK) {
size = width * height * 4;
ret = HPDF_Dict_AddName (image, "ColorSpace", COL_CMYK);
} else {
size = width * height * 3;
ret = HPDF_Dict_AddName (image, "ColorSpace", COL_RGB);
}
if (ret != HPDF_OK)
return NULL;
if (HPDF_Dict_AddNumber (image, "Width", width) != HPDF_OK)
return NULL;
if (HPDF_Dict_AddNumber (image, "Height", height) != HPDF_OK)
return NULL;
if (HPDF_Dict_AddNumber (image, "BitsPerComponent", 8) != HPDF_OK)
return NULL;
if (HPDF_Stream_WriteToStream (raw_data, image->stream, 0, NULL) != HPDF_OK)
return NULL;
if (image->stream->size != size) {
HPDF_SetError (image->error, HPDF_INVALID_IMAGE, 0);
return NULL;
}
return image;
}
static HPDF_Font
CIDFontType2_New (HPDF_Font parent, HPDF_Xref xref)
{
HPDF_STATUS ret = HPDF_OK;
HPDF_FontAttr attr = (HPDF_FontAttr)parent->attr;
HPDF_FontDef fontdef = attr->fontdef;
HPDF_TTFontDefAttr fontdef_attr = (HPDF_TTFontDefAttr)fontdef->attr;
HPDF_Encoder encoder = attr->encoder;
HPDF_CMapEncoderAttr encoder_attr =
(HPDF_CMapEncoderAttr)encoder->attr;
HPDF_Font font;
HPDF_Array array;
HPDF_UINT i;
HPDF_UNICODE tmp_map[65536];
HPDF_Dict cid_system_info;
HPDF_UINT16 max = 0;
HPDF_PTRACE ((" HPDF_CIDFontType2_New\n"));
font = HPDF_Dict_New (parent->mmgr);
if (!font)
return NULL;
if (HPDF_Xref_Add (xref, font) != HPDF_OK)
return NULL;
parent->before_write_fn = CIDFontType2_BeforeWrite_Func;
ret += HPDF_Dict_AddName (font, "Type", "Font");
ret += HPDF_Dict_AddName (font, "Subtype", "CIDFontType2");
ret += HPDF_Dict_AddNumber (font, "DW", fontdef->missing_width);
if (ret != HPDF_OK)
return NULL;
/* add 'DW2' element */
array = HPDF_Array_New (font->mmgr);
if (!array)
return NULL;
if (HPDF_Dict_Add (font, "DW2", array) != HPDF_OK)
return NULL;
ret += HPDF_Array_AddNumber (array, (HPDF_INT32)(fontdef->font_bbox.bottom));
ret += HPDF_Array_AddNumber (array, (HPDF_INT32)(fontdef->font_bbox.bottom -
fontdef->font_bbox.top));
HPDF_MemSet (tmp_map, 0, sizeof(HPDF_UNICODE) * 65536);
if (ret != HPDF_OK)
return NULL;
for (i = 0; i < 256; i++) {
HPDF_UINT j;
for (j = 0; j < 256; j++) {
if (encoder->to_unicode_fn == HPDF_CMapEncoder_ToUnicode) {
HPDF_UINT16 cid = encoder_attr->cid_map[i][j];
if (cid != 0) {
HPDF_UNICODE unicode = encoder_attr->unicode_map[i][j];
HPDF_UINT16 gid = HPDF_TTFontDef_GetGlyphid (fontdef,
unicode);
tmp_map[cid] = gid;
if (max < cid)
max = cid;
}
} else {
HPDF_UNICODE unicode = (i << 8) | j;
HPDF_UINT16 gid = HPDF_TTFontDef_GetGlyphid (fontdef,
unicode);
tmp_map[unicode] = gid;
if (max < unicode)
max = unicode;
}
}
}
if (max > 0) {
HPDF_INT16 dw = fontdef->missing_width;
HPDF_UNICODE *ptmp_map = tmp_map;
HPDF_Array tmp_array = NULL;
/* add 'W' element */
array = HPDF_Array_New (font->mmgr);
if (!array)
return NULL;
if (HPDF_Dict_Add (font, "W", array) != HPDF_OK)
return NULL;
for (i = 0; i < max; i++, ptmp_map++) {
HPDF_INT w = HPDF_TTFontDef_GetGidWidth (fontdef, *ptmp_map);
if (w != dw) {
if (!tmp_array) {
if (HPDF_Array_AddNumber (array, i) != HPDF_OK)
return NULL;
tmp_array = HPDF_Array_New (font->mmgr);
if (!tmp_array)
return NULL;
if (HPDF_Array_Add (array, tmp_array) != HPDF_OK)
return NULL;
}
if ((ret = HPDF_Array_AddNumber (tmp_array, w)) != HPDF_OK)
return NULL;
} else
tmp_array = NULL;
}
/* create "CIDToGIDMap" data */
if (fontdef_attr->embedding) {
attr->map_stream = HPDF_DictStream_New (font->mmgr, xref);
if (!attr->map_stream)
return NULL;
if (HPDF_Dict_Add (font, "CIDToGIDMap", attr->map_stream) != HPDF_OK)
return NULL;
for (i = 0; i < max; i++) {
HPDF_BYTE u[2];
HPDF_UINT16 gid = tmp_map[i];
u[0] = (HPDF_BYTE)(gid >> 8);
u[1] = (HPDF_BYTE)gid;
HPDF_MemCpy ((HPDF_BYTE *)(tmp_map + i), u, 2);
}
if ((ret = HPDF_Stream_Write (attr->map_stream->stream,
(HPDF_BYTE *)tmp_map, max * 2)) != HPDF_OK)
return NULL;
}
static HPDF_STATUS
LoadPngData (HPDF_Dict image,
HPDF_Xref xref,
HPDF_Stream png_data,
HPDF_BOOL delayed_loading)
{
HPDF_STATUS ret = HPDF_OK;
png_uint_32 width, height;
int bit_depth, color_type;
png_structp png_ptr = NULL;
png_infop info_ptr = NULL;
HPDF_PTRACE ((" HPDF_Image_LoadPngImage\n"));
/* create read_struct. */
png_ptr = png_create_read_struct (PNG_LIBPNG_VER_STRING,
image->error, PngErrorFunc, PngErrorFunc);
if (png_ptr == NULL) {
HPDF_SetError (image->error, HPDF_FAILD_TO_ALLOC_MEM, 0);
return HPDF_FAILD_TO_ALLOC_MEM;
}
/* create info-struct */
info_ptr = png_create_info_struct (png_ptr);
if (info_ptr == NULL) {
HPDF_SetError (image->error, HPDF_FAILD_TO_ALLOC_MEM, 0);
goto Exit;
}
png_set_sig_bytes (png_ptr, HPDF_PNG_BYTES_TO_CHECK);
png_set_read_fn (png_ptr, (void *)png_data, (png_rw_ptr)&PngReadFunc);
/* reading info structure. */
png_read_info(png_ptr, info_ptr);
if (image->error->error_no != HPDF_OK) {
goto Exit;
}
png_get_IHDR(png_ptr, info_ptr, &width, &height, &bit_depth, &color_type, NULL, NULL, NULL);
/* 16bit images are not supported. */
if (bit_depth == 16) {
png_set_strip_16(png_ptr);
}
png_read_update_info(png_ptr, info_ptr);
if (image->error->error_no != HPDF_OK) {
goto Exit;
}
/* check palette-based images for transparent areas and load them immediately if found */
if (xref && PNG_COLOR_TYPE_PALETTE & color_type) {
png_bytep trans;
int num_trans;
HPDF_Dict smask;
png_bytep smask_data;
if (!png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS) ||
!png_get_tRNS(png_ptr, info_ptr, &trans, &num_trans, NULL)) {
goto no_transparent_color_in_palette;
}
smask = HPDF_DictStream_New (image->mmgr, xref);
if (!smask) {
ret = HPDF_FAILD_TO_ALLOC_MEM;
goto Exit;
}
smask->header.obj_class |= HPDF_OSUBCLASS_XOBJECT;
ret = HPDF_Dict_AddName (smask, "Type", "XObject");
ret += HPDF_Dict_AddName (smask, "Subtype", "Image");
ret += HPDF_Dict_AddNumber (smask, "Width", (HPDF_UINT)width);
ret += HPDF_Dict_AddNumber (smask, "Height", (HPDF_UINT)height);
ret += HPDF_Dict_AddName (smask, "ColorSpace", "DeviceGray");
ret += HPDF_Dict_AddNumber (smask, "BitsPerComponent", (HPDF_UINT)bit_depth);
if (ret != HPDF_OK) {
HPDF_Dict_Free(smask);
ret = HPDF_INVALID_PNG_IMAGE;
goto Exit;
}
smask_data = HPDF_GetMem(image->mmgr, width * height);
if (!smask_data) {
HPDF_Dict_Free(smask);
ret = HPDF_FAILD_TO_ALLOC_MEM;
goto Exit;
}
if (ReadTransparentPaletteData(image, png_ptr, info_ptr, smask_data, trans, num_trans) != HPDF_OK) {
HPDF_FreeMem(image->mmgr, smask_data);
HPDF_Dict_Free(smask);
ret = HPDF_INVALID_PNG_IMAGE;
goto Exit;
}
if (HPDF_Stream_Write(smask->stream, smask_data, width * height) != HPDF_OK) {
HPDF_FreeMem(image->mmgr, smask_data);
HPDF_Dict_Free(smask);
ret = HPDF_FILE_IO_ERROR;
goto Exit;
}
HPDF_FreeMem(image->mmgr, smask_data);
ret += CreatePallet(image, png_ptr, info_ptr);
ret += HPDF_Dict_AddNumber (image, "Width", (HPDF_UINT)width);
ret += HPDF_Dict_AddNumber (image, "Height", (HPDF_UINT)height);
ret += HPDF_Dict_AddNumber (image, "BitsPerComponent", (HPDF_UINT)bit_depth);
ret += HPDF_Dict_Add (image, "SMask", smask);
png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
return HPDF_OK;
}
no_transparent_color_in_palette:
/* read images with alpha channel right away
we have to do this because image transparent mask must be added to the Xref */
if (xref && PNG_COLOR_MASK_ALPHA & color_type) {
HPDF_Dict smask;
png_bytep smask_data;
smask = HPDF_DictStream_New (image->mmgr, xref);
if (!smask) {
ret = HPDF_FAILD_TO_ALLOC_MEM;
goto Exit;
}
smask->header.obj_class |= HPDF_OSUBCLASS_XOBJECT;
ret = HPDF_Dict_AddName (smask, "Type", "XObject");
ret += HPDF_Dict_AddName (smask, "Subtype", "Image");
ret += HPDF_Dict_AddNumber (smask, "Width", (HPDF_UINT)width);
ret += HPDF_Dict_AddNumber (smask, "Height", (HPDF_UINT)height);
ret += HPDF_Dict_AddName (smask, "ColorSpace", "DeviceGray");
ret += HPDF_Dict_AddNumber (smask, "BitsPerComponent", (HPDF_UINT)bit_depth);
if (ret != HPDF_OK) {
HPDF_Dict_Free(smask);
ret = HPDF_INVALID_PNG_IMAGE;
goto Exit;
}
smask_data = HPDF_GetMem(image->mmgr, width * height);
if (!smask_data) {
HPDF_Dict_Free(smask);
ret = HPDF_FAILD_TO_ALLOC_MEM;
goto Exit;
}
if (ReadTransparentPngData(image, png_ptr, info_ptr, smask_data) != HPDF_OK) {
HPDF_FreeMem(image->mmgr, smask_data);
HPDF_Dict_Free(smask);
ret = HPDF_INVALID_PNG_IMAGE;
goto Exit;
}
if (HPDF_Stream_Write(smask->stream, smask_data, width * height) != HPDF_OK) {
HPDF_FreeMem(image->mmgr, smask_data);
HPDF_Dict_Free(smask);
ret = HPDF_FILE_IO_ERROR;
goto Exit;
}
HPDF_FreeMem(image->mmgr, smask_data);
if (color_type == PNG_COLOR_TYPE_GRAY_ALPHA) {
ret += HPDF_Dict_AddName (image, "ColorSpace", "DeviceGray");
} else {
ret += HPDF_Dict_AddName (image, "ColorSpace", "DeviceRGB");
}
ret += HPDF_Dict_AddNumber (image, "Width", (HPDF_UINT)width);
ret += HPDF_Dict_AddNumber (image, "Height", (HPDF_UINT)height);
ret += HPDF_Dict_AddNumber (image, "BitsPerComponent", (HPDF_UINT)bit_depth);
ret += HPDF_Dict_Add (image, "SMask", smask);
png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
return HPDF_OK;
}
/* if the image has color palette, copy the pallet of the image to
* create color map.
*/
if (color_type == PNG_COLOR_TYPE_PALETTE)
ret = CreatePallet(image, png_ptr, info_ptr);
else if (color_type == PNG_COLOR_TYPE_GRAY)
ret = HPDF_Dict_AddName (image, "ColorSpace", "DeviceGray");
else
ret = HPDF_Dict_AddName (image, "ColorSpace", "DeviceRGB");
if (ret != HPDF_OK)
goto Exit;
/* read image-data
* if the image is interlaced, read whole image at once.
* if delayed_loading is HPDF_TRUE, the data does not load this phase.
*/
if (delayed_loading) {
image->before_write_fn = PngBeforeWrite;
image->after_write_fn = PngAfterWrite;
} else {
if (png_get_interlace_type(png_ptr, info_ptr) != PNG_INTERLACE_NONE)
ret = ReadPngData_Interlaced(image, png_ptr, info_ptr);
else
ret = ReadPngData(image, png_ptr, info_ptr);
if (ret != HPDF_OK)
goto Exit;
}
/* setting the info of the image. */
if (HPDF_Dict_AddNumber (image, "Width", (HPDF_UINT)width)
!= HPDF_OK)
goto Exit;
if (HPDF_Dict_AddNumber (image, "Height", (HPDF_UINT)height)
!= HPDF_OK)
goto Exit;
if (HPDF_Dict_AddNumber (image, "BitsPerComponent",
(HPDF_UINT)bit_depth) != HPDF_OK)
goto Exit;
/* clean up */
png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
return HPDF_OK;
Exit:
png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
if (ret != HPDF_OK) {
return ret;
}
return image->error->error_no;
}
