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path: root/source/pdf/pdf-device.c
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-rw-r--r--source/pdf/pdf-device.c170
1 files changed, 89 insertions, 81 deletions
diff --git a/source/pdf/pdf-device.c b/source/pdf/pdf-device.c
index 29d2556d..cf06a7a1 100644
--- a/source/pdf/pdf-device.c
+++ b/source/pdf/pdf-device.c
@@ -68,7 +68,7 @@ struct group_entry_s
struct pdf_device_s
{
fz_context *ctx;
- pdf_document *xref;
+ pdf_document *doc;
pdf_obj *contents;
pdf_obj *resources;
@@ -117,6 +117,7 @@ send_image(pdf_device *pdev, fz_image *image, int mask, int smask)
unsigned char digest[16];
int bpc = 8;
fz_colorspace *colorspace = image->colorspace;
+ pdf_document *doc = pdev->doc;
/* If we can maintain compression, do so */
cbuffer = image->buffer;
@@ -192,21 +193,21 @@ send_image(pdf_device *pdev, fz_image *image, int mask, int smask)
memcpy(pdev->images[num].digest,digest,16);
pdev->images[num].ref = NULL; /* Will be filled in later */
- imobj = pdf_new_dict(ctx, 3);
- pdf_dict_puts_drop(imobj, "Type", pdf_new_name(ctx, "XObject"));
- pdf_dict_puts_drop(imobj, "Subtype", pdf_new_name(ctx, "Image"));
- pdf_dict_puts_drop(imobj, "Width", pdf_new_int(ctx, image->w));
- pdf_dict_puts_drop(imobj, "Height", pdf_new_int(ctx, image->h));
+ imobj = pdf_new_dict(doc, 3);
+ pdf_dict_puts_drop(imobj, "Type", pdf_new_name(doc, "XObject"));
+ pdf_dict_puts_drop(imobj, "Subtype", pdf_new_name(doc, "Image"));
+ pdf_dict_puts_drop(imobj, "Width", pdf_new_int(doc, image->w));
+ pdf_dict_puts_drop(imobj, "Height", pdf_new_int(doc, image->h));
if (mask)
{}
else if (!colorspace || colorspace->n == 1)
- pdf_dict_puts_drop(imobj, "ColorSpace", pdf_new_name(ctx, "DeviceGray"));
+ pdf_dict_puts_drop(imobj, "ColorSpace", pdf_new_name(doc, "DeviceGray"));
else if (colorspace->n == 3)
- pdf_dict_puts_drop(imobj, "ColorSpace", pdf_new_name(ctx, "DeviceRGB"));
+ pdf_dict_puts_drop(imobj, "ColorSpace", pdf_new_name(doc, "DeviceRGB"));
else if (colorspace->n == 4)
- pdf_dict_puts_drop(imobj, "ColorSpace", pdf_new_name(ctx, "DeviceCMYK"));
+ pdf_dict_puts_drop(imobj, "ColorSpace", pdf_new_name(doc, "DeviceCMYK"));
if (!mask)
- pdf_dict_puts_drop(imobj, "BitsPerComponent", pdf_new_int(ctx, image->bpc));
+ pdf_dict_puts_drop(imobj, "BitsPerComponent", pdf_new_int(doc, image->bpc));
switch (cp ? cp->type : FZ_IMAGE_UNKNOWN)
{
case FZ_IMAGE_UNKNOWN: /* Unknown also means raw */
@@ -214,32 +215,32 @@ send_image(pdf_device *pdev, fz_image *image, int mask, int smask)
break;
case FZ_IMAGE_JPEG:
if (cp->u.jpeg.color_transform != -1)
- pdf_dict_puts_drop(imobj, "ColorTransform", pdf_new_int(ctx, cp->u.jpeg.color_transform));
- pdf_dict_puts_drop(imobj, "Filter", pdf_new_name(ctx, "DCTDecode"));
+ pdf_dict_puts_drop(imobj, "ColorTransform", pdf_new_int(doc, cp->u.jpeg.color_transform));
+ pdf_dict_puts_drop(imobj, "Filter", pdf_new_name(doc, "DCTDecode"));
break;
case FZ_IMAGE_JPX:
if (cp->u.jpx.smask_in_data)
- pdf_dict_puts_drop(imobj, "SMaskInData", pdf_new_int(ctx, cp->u.jpx.smask_in_data));
- pdf_dict_puts_drop(imobj, "Filter", pdf_new_name(ctx, "JPXDecode"));
+ pdf_dict_puts_drop(imobj, "SMaskInData", pdf_new_int(doc, cp->u.jpx.smask_in_data));
+ pdf_dict_puts_drop(imobj, "Filter", pdf_new_name(doc, "JPXDecode"));
break;
case FZ_IMAGE_FAX:
if (cp->u.fax.columns)
- pdf_dict_puts(imobj, "Columns", pdf_new_int(ctx, cp->u.fax.columns));
+ pdf_dict_puts(imobj, "Columns", pdf_new_int(doc, cp->u.fax.columns));
if (cp->u.fax.rows)
- pdf_dict_puts(imobj, "Rows", pdf_new_int(ctx, cp->u.fax.rows));
+ pdf_dict_puts(imobj, "Rows", pdf_new_int(doc, cp->u.fax.rows));
if (cp->u.fax.k)
- pdf_dict_puts(imobj, "K", pdf_new_int(ctx, cp->u.fax.k));
+ pdf_dict_puts(imobj, "K", pdf_new_int(doc, cp->u.fax.k));
if (cp->u.fax.end_of_line)
- pdf_dict_puts(imobj, "EndOfLine", pdf_new_int(ctx, cp->u.fax.end_of_line));
+ pdf_dict_puts(imobj, "EndOfLine", pdf_new_int(doc, cp->u.fax.end_of_line));
if (cp->u.fax.encoded_byte_align)
- pdf_dict_puts(imobj, "EncodedByteAlign", pdf_new_int(ctx, cp->u.fax.encoded_byte_align));
+ pdf_dict_puts(imobj, "EncodedByteAlign", pdf_new_int(doc, cp->u.fax.encoded_byte_align));
if (cp->u.fax.end_of_block)
- pdf_dict_puts(imobj, "EndOfBlock", pdf_new_int(ctx, cp->u.fax.end_of_block));
+ pdf_dict_puts(imobj, "EndOfBlock", pdf_new_int(doc, cp->u.fax.end_of_block));
if (cp->u.fax.black_is_1)
- pdf_dict_puts(imobj, "BlackIs1", pdf_new_int(ctx, cp->u.fax.black_is_1));
+ pdf_dict_puts(imobj, "BlackIs1", pdf_new_int(doc, cp->u.fax.black_is_1));
if (cp->u.fax.damaged_rows_before_error)
- pdf_dict_puts(imobj, "DamagedRowsBeforeError", pdf_new_int(ctx, cp->u.fax.damaged_rows_before_error));
- pdf_dict_puts(imobj, "Filter", pdf_new_name(ctx, "CCITTFaxDecode"));
+ pdf_dict_puts(imobj, "DamagedRowsBeforeError", pdf_new_int(doc, cp->u.fax.damaged_rows_before_error));
+ pdf_dict_puts(imobj, "Filter", pdf_new_name(doc, "CCITTFaxDecode"));
break;
case FZ_IMAGE_JBIG2:
/* FIXME - jbig2globals */
@@ -248,36 +249,36 @@ send_image(pdf_device *pdev, fz_image *image, int mask, int smask)
break;
case FZ_IMAGE_FLATE:
if (cp->u.flate.columns)
- pdf_dict_puts(imobj, "Columns", pdf_new_int(ctx, cp->u.flate.columns));
+ pdf_dict_puts(imobj, "Columns", pdf_new_int(doc, cp->u.flate.columns));
if (cp->u.flate.colors)
- pdf_dict_puts(imobj, "Colors", pdf_new_int(ctx, cp->u.flate.colors));
+ pdf_dict_puts(imobj, "Colors", pdf_new_int(doc, cp->u.flate.colors));
if (cp->u.flate.predictor)
- pdf_dict_puts(imobj, "Predictor", pdf_new_int(ctx, cp->u.flate.predictor));
+ pdf_dict_puts(imobj, "Predictor", pdf_new_int(doc, cp->u.flate.predictor));
if (cp->u.flate.bpc)
bpc = cp->u.flate.bpc;
- pdf_dict_puts(imobj, "Filter", pdf_new_name(ctx, "FlateDecode"));
- pdf_dict_puts_drop(imobj, "BitsPerComponent", pdf_new_int(ctx, image->bpc));
+ pdf_dict_puts(imobj, "Filter", pdf_new_name(doc, "FlateDecode"));
+ pdf_dict_puts_drop(imobj, "BitsPerComponent", pdf_new_int(doc, image->bpc));
break;
case FZ_IMAGE_LZW:
if (cp->u.lzw.columns)
- pdf_dict_puts(imobj, "Columns", pdf_new_int(ctx, cp->u.lzw.columns));
+ pdf_dict_puts(imobj, "Columns", pdf_new_int(doc, cp->u.lzw.columns));
if (cp->u.lzw.colors)
- pdf_dict_puts(imobj, "Colors", pdf_new_int(ctx, cp->u.lzw.colors));
+ pdf_dict_puts(imobj, "Colors", pdf_new_int(doc, cp->u.lzw.colors));
if (cp->u.lzw.predictor)
- pdf_dict_puts(imobj, "Predictor", pdf_new_int(ctx, cp->u.lzw.predictor));
+ pdf_dict_puts(imobj, "Predictor", pdf_new_int(doc, cp->u.lzw.predictor));
if (cp->u.lzw.bpc)
bpc = cp->u.lzw.bpc;
if (cp->u.lzw.early_change)
- pdf_dict_puts(imobj, "EarlyChange", pdf_new_int(ctx, cp->u.lzw.early_change));
- pdf_dict_puts(imobj, "Filter", pdf_new_name(ctx, "LZWDecode"));
+ pdf_dict_puts(imobj, "EarlyChange", pdf_new_int(doc, cp->u.lzw.early_change));
+ pdf_dict_puts(imobj, "Filter", pdf_new_name(doc, "LZWDecode"));
break;
case FZ_IMAGE_RLD:
- pdf_dict_puts(imobj, "Filter", pdf_new_name(ctx, "RunLengthDecode"));
+ pdf_dict_puts(imobj, "Filter", pdf_new_name(doc, "RunLengthDecode"));
break;
}
if (mask)
{
- pdf_dict_puts_drop(imobj, "ImageMask", pdf_new_bool(ctx, 1));
+ pdf_dict_puts_drop(imobj, "ImageMask", pdf_new_bool(doc, 1));
bpc = 1;
}
if (image->mask)
@@ -286,9 +287,9 @@ send_image(pdf_device *pdev, fz_image *image, int mask, int smask)
pdf_dict_puts(imobj, "SMask", pdev->images[smasknum].ref);
}
- imref = pdf_new_ref(pdev->xref, imobj);
- pdf_update_stream(pdev->xref, pdf_to_num(imref), buffer);
- pdf_dict_puts_drop(imobj, "Length", pdf_new_int(ctx, buffer->len));
+ imref = pdf_new_ref(doc, imobj);
+ pdf_update_stream(doc, pdf_to_num(imref), buffer);
+ pdf_dict_puts_drop(imobj, "Length", pdf_new_int(doc, buffer->len));
{
char text[32];
@@ -483,6 +484,7 @@ pdf_dev_alpha(pdf_device *pdev, float alpha, int stroke)
{
int i;
fz_context *ctx = pdev->ctx;
+ pdf_document *doc = pdev->doc;
gstate *gs = CURRENT_GSTATE(pdev);
/* If the alpha is unchanged, nothing to do */
@@ -513,12 +515,12 @@ pdf_dev_alpha(pdf_device *pdev, float alpha, int stroke)
pdev->alphas[i].alpha = alpha;
pdev->alphas[i].stroke = stroke;
- o = pdf_new_dict(ctx, 1);
+ o = pdf_new_dict(doc, 1);
fz_try(ctx)
{
char text[32];
- pdf_dict_puts_drop(o, (stroke ? "CA" : "ca"), pdf_new_real(ctx, alpha));
- ref = pdf_new_ref(pdev->xref, o);
+ pdf_dict_puts_drop(o, (stroke ? "CA" : "ca"), pdf_new_real(doc, alpha));
+ ref = pdf_new_ref(doc, o);
snprintf(text, sizeof(text), "ExtGState/Alp%d", i);
pdf_dict_putp(pdev->resources, text, ref);
}
@@ -540,6 +542,7 @@ static void
pdf_dev_font(pdf_device *pdev, fz_font *font, float size)
{
int i;
+ pdf_document *doc = pdev->doc;
fz_context *ctx = pdev->ctx;
gstate *gs = CURRENT_GSTATE(pdev);
@@ -570,15 +573,15 @@ pdf_dev_font(pdf_device *pdev, fz_font *font, float size)
}
pdev->fonts[i].font = fz_keep_font(ctx, font);
- o = pdf_new_dict(ctx, 3);
+ o = pdf_new_dict(doc, 3);
fz_try(ctx)
{
/* BIG FIXME: Get someone who understands fonts to fill this bit in. */
char text[32];
- pdf_dict_puts_drop(o, "Type", pdf_new_name(ctx, "Font"));
- pdf_dict_puts_drop(o, "Subtype", pdf_new_name(ctx, "Type1"));
- pdf_dict_puts_drop(o, "BaseFont", pdf_new_name(ctx, "Helvetica"));
- ref = pdf_new_ref(pdev->xref, o);
+ pdf_dict_puts_drop(o, "Type", pdf_new_name(doc, "Font"));
+ pdf_dict_puts_drop(o, "Subtype", pdf_new_name(doc, "Type1"));
+ pdf_dict_puts_drop(o, "BaseFont", pdf_new_name(doc, "Helvetica"));
+ ref = pdf_new_ref(doc, o);
snprintf(text, sizeof(text), "Font/F%d", i);
pdf_dict_putp(pdev->resources, text, ref);
}
@@ -739,6 +742,7 @@ static int
pdf_dev_new_form(pdf_obj **form_ref, pdf_device *pdev, const fz_rect *bbox, int isolated, int knockout, int blendmode, float alpha, fz_colorspace *colorspace)
{
fz_context *ctx = pdev->ctx;
+ pdf_document *doc = pdev->doc;
int num;
pdf_obj *group_ref;
pdf_obj *group;
@@ -775,24 +779,24 @@ pdf_dev_new_form(pdf_obj **form_ref, pdf_device *pdev, const fz_rect *bbox, int
pdev->groups[num].alpha = alpha;
pdev->groups[num].colorspace = fz_keep_colorspace(ctx, colorspace);
pdev->groups[num].ref = NULL;
- group = pdf_new_dict(ctx, 5);
+ group = pdf_new_dict(doc, 5);
fz_try(ctx)
{
- pdf_dict_puts_drop(group, "Type", pdf_new_name(ctx, "Group"));
- pdf_dict_puts_drop(group, "S", pdf_new_name(ctx, "Transparency"));
- pdf_dict_puts_drop(group, "K", pdf_new_bool(ctx, knockout));
- pdf_dict_puts_drop(group, "I", pdf_new_bool(ctx, isolated));
- pdf_dict_puts_drop(group, "K", pdf_new_bool(ctx, knockout));
- pdf_dict_puts_drop(group, "BM", pdf_new_name(ctx, fz_blendmode_name(blendmode)));
+ pdf_dict_puts_drop(group, "Type", pdf_new_name(doc, "Group"));
+ pdf_dict_puts_drop(group, "S", pdf_new_name(doc, "Transparency"));
+ pdf_dict_puts_drop(group, "K", pdf_new_bool(doc, knockout));
+ pdf_dict_puts_drop(group, "I", pdf_new_bool(doc, isolated));
+ pdf_dict_puts_drop(group, "K", pdf_new_bool(doc, knockout));
+ pdf_dict_puts_drop(group, "BM", pdf_new_name(doc, fz_blendmode_name(blendmode)));
if (!colorspace)
{}
else if (colorspace->n == 1)
- pdf_dict_puts_drop(group, "CS", pdf_new_name(ctx, "DeviceGray"));
+ pdf_dict_puts_drop(group, "CS", pdf_new_name(doc, "DeviceGray"));
else if (colorspace->n == 4)
- pdf_dict_puts_drop(group, "CS", pdf_new_name(ctx, "DeviceCMYK"));
+ pdf_dict_puts_drop(group, "CS", pdf_new_name(doc, "DeviceCMYK"));
else
- pdf_dict_puts_drop(group, "CS", pdf_new_name(ctx, "DeviceRGB"));
- group_ref = pdev->groups[num].ref = pdf_new_ref(pdev->xref, group);
+ pdf_dict_puts_drop(group, "CS", pdf_new_name(doc, "DeviceRGB"));
+ group_ref = pdev->groups[num].ref = pdf_new_ref(doc, group);
}
fz_always(ctx)
{
@@ -806,14 +810,14 @@ pdf_dev_new_form(pdf_obj **form_ref, pdf_device *pdev, const fz_rect *bbox, int
/* Make us a new Forms object that points to that group, and change
* to writing into the buffer for that Forms object. */
- form = pdf_new_dict(ctx, 4);
+ form = pdf_new_dict(doc, 4);
fz_try(ctx)
{
- pdf_dict_puts_drop(form, "Subtype", pdf_new_name(ctx, "Form"));
+ pdf_dict_puts_drop(form, "Subtype", pdf_new_name(doc, "Form"));
pdf_dict_puts(form, "Group", group_ref);
- pdf_dict_puts_drop(form, "FormType", pdf_new_int(ctx, 1));
- pdf_dict_puts_drop(form, "BBox", pdf_new_rect(ctx, bbox));
- *form_ref = pdf_new_ref(pdev->xref, form);
+ pdf_dict_puts_drop(form, "FormType", pdf_new_int(doc, 1));
+ pdf_dict_puts_drop(form, "BBox", pdf_new_rect(doc, bbox));
+ *form_ref = pdf_new_ref(doc, form);
}
fz_catch(ctx)
{
@@ -1030,6 +1034,7 @@ static void
pdf_dev_begin_mask(fz_device *dev, const fz_rect *bbox, int luminosity, fz_colorspace *colorspace, float *color)
{
pdf_device *pdev = (pdf_device *)dev->user;
+ pdf_document *doc = pdev->doc;
fz_context *ctx = pdev->ctx;
gstate *gs;
pdf_obj *smask = NULL;
@@ -1050,20 +1055,20 @@ pdf_dev_begin_mask(fz_device *dev, const fz_rect *bbox, int luminosity, fz_color
fz_try(ctx)
{
- smask = pdf_new_dict(ctx, 4);
- pdf_dict_puts(smask, "Type", pdf_new_name(ctx, "Mask"));
- pdf_dict_puts_drop(smask, "S", pdf_new_name(ctx, (luminosity ? "Luminosity" : "Alpha")));
+ smask = pdf_new_dict(doc, 4);
+ pdf_dict_puts(smask, "Type", pdf_new_name(doc, "Mask"));
+ pdf_dict_puts_drop(smask, "S", pdf_new_name(doc, (luminosity ? "Luminosity" : "Alpha")));
pdf_dict_puts(smask, "G", form_ref);
- color_obj = pdf_new_array(ctx, colorspace->n);
+ color_obj = pdf_new_array(doc, colorspace->n);
for (i = 0; i < colorspace->n; i++)
- pdf_array_push(color_obj, pdf_new_real(ctx, color[i]));
+ pdf_array_push(color_obj, pdf_new_real(doc, color[i]));
pdf_dict_puts_drop(smask, "BC", color_obj);
color_obj = NULL;
- egs = pdf_new_dict(ctx, 5);
- pdf_dict_puts_drop(egs, "Type", pdf_new_name(ctx, "ExtGState"));
- pdf_dict_puts_drop(egs, "SMask", pdf_new_ref(pdev->xref, smask));
- egs_ref = pdf_new_ref(pdev->xref, egs);
+ egs = pdf_new_dict(doc, 5);
+ pdf_dict_puts_drop(egs, "Type", pdf_new_name(doc, "ExtGState"));
+ pdf_dict_puts_drop(egs, "SMask", pdf_new_ref(doc, smask));
+ egs_ref = pdf_new_ref(doc, egs);
{
char text[32];
@@ -1094,6 +1099,7 @@ static void
pdf_dev_end_mask(fz_device *dev)
{
pdf_device *pdev = (pdf_device *)dev->user;
+ pdf_document *doc = pdev->doc;
fz_context *ctx = pdev->ctx;
gstate *gs = CURRENT_GSTATE(pdev);
fz_buffer *buf = fz_keep_buffer(ctx, gs->buf);
@@ -1101,14 +1107,14 @@ pdf_dev_end_mask(fz_device *dev)
/* Here we do part of the pop, but not all of it. */
pdf_dev_end_text(pdev);
- fz_buffer_printf(pdev->ctx, buf, "Q\n");
- pdf_dict_puts_drop(form_ref, "Length", pdf_new_int(ctx, buf->len));
- pdf_update_stream(pdev->xref, pdf_to_num(form_ref), buf);
+ fz_buffer_printf(ctx, buf, "Q\n");
+ pdf_dict_puts_drop(form_ref, "Length", pdf_new_int(doc, buf->len));
+ pdf_update_stream(doc, pdf_to_num(form_ref), buf);
fz_drop_buffer(ctx, buf);
gs->buf = fz_keep_buffer(ctx, gs[-1].buf);
gs->on_pop_arg = NULL;
pdf_drop_obj(form_ref);
- fz_buffer_printf(pdev->ctx, gs->buf, "q\n");
+ fz_buffer_printf(ctx, gs->buf, "q\n");
}
static void
@@ -1137,6 +1143,7 @@ static void
pdf_dev_end_group(fz_device *dev)
{
pdf_device *pdev = (pdf_device *)dev->user;
+ pdf_document *doc = pdev->doc;
gstate *gs = CURRENT_GSTATE(pdev);
fz_context *ctx = pdev->ctx;
fz_buffer *buf = fz_keep_buffer(ctx, gs->buf);
@@ -1144,8 +1151,8 @@ pdf_dev_end_group(fz_device *dev)
pdf_dev_end_text(pdev);
form_ref = (pdf_obj *)pdf_dev_pop(pdev);
- pdf_dict_puts_drop(form_ref, "Length", pdf_new_int(ctx, gs->buf->len));
- pdf_update_stream(pdev->xref, pdf_to_num(form_ref), buf);
+ pdf_dict_puts_drop(form_ref, "Length", pdf_new_int(doc, gs->buf->len));
+ pdf_update_stream(doc, pdf_to_num(form_ref), buf);
fz_drop_buffer(ctx, buf);
pdf_drop_obj(form_ref);
}
@@ -1173,13 +1180,14 @@ static void
pdf_dev_free_user(fz_device *dev)
{
pdf_device *pdev = dev->user;
+ pdf_document *doc = pdev->doc;
fz_context *ctx = pdev->ctx;
gstate *gs = CURRENT_GSTATE(pdev);
int i;
pdf_dev_end_text(pdev);
- pdf_dict_puts_drop(pdev->contents, "Length", pdf_new_int(ctx, gs->buf->len));
+ pdf_dict_puts_drop(pdev->contents, "Length", pdf_new_int(doc, gs->buf->len));
for (i = pdev->num_gstates-1; i >= 0; i--)
{
@@ -1196,7 +1204,7 @@ pdf_dev_free_user(fz_device *dev)
pdf_drop_obj(pdev->images[i].ref);
}
- pdf_update_stream(pdev->xref, pdf_to_num(pdev->contents), pdev->gstates[0].buf);
+ pdf_update_stream(doc, pdf_to_num(pdev->contents), pdev->gstates[0].buf);
fz_drop_buffer(ctx, pdev->gstates[0].buf);
pdf_drop_obj(pdev->contents);
@@ -1217,7 +1225,7 @@ fz_device *pdf_new_pdf_device(pdf_document *doc, pdf_obj *contents, pdf_obj *res
fz_try(ctx)
{
pdev->ctx = ctx;
- pdev->xref = doc;
+ pdev->doc = doc;
pdev->contents = pdf_keep_obj(contents);
pdev->resources = pdf_keep_obj(resources);
pdev->gstates = fz_malloc_struct(ctx, gstate);
@@ -1282,7 +1290,7 @@ fz_device *pdf_page_write(pdf_document *doc, pdf_page *page)
fz_pre_translate(fz_scale(&ctm, 1, -1), 0, page->mediabox.y0-page->mediabox.y1);
if (resources == NULL)
{
- resources = pdf_new_dict(doc->ctx, 0);
+ resources = pdf_new_dict(doc, 0);
pdf_dict_puts_drop(page->me, "Resources", resources);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-04 17:22:03 +0000