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pdf: use interpolate in image smask

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This commit is contained in:
Adrian Johnson 2011-09-06 23:50:46 +09:30
parent d47e05f8c2
commit 7dca94fbc4
1 changed files with 20 additions and 17 deletions
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37
src/cairo-pdf-surface.c
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@ -1884,6 +1884,7 @@ static cairo_status_t
_cairo_pdf_surface_emit_smask (cairo_pdf_surface_t *surface,
cairo_image_surface_t *image,
cairo_bool_t stencil_mask,
const char *interpolate,
cairo_pdf_resource_t *stream_res)
{
cairo_status_t status = CAIRO_STATUS_SUCCESS;
@ -1972,9 +1973,10 @@ _cairo_pdf_surface_emit_smask (cairo_pdf_surface_t *surface,
" /ImageMask true\n"
" /Width %d\n"
" /Height %d\n"
" /Interpolate %s\n"
" /BitsPerComponent 1\n"
" /Decode [1 0]\n",
image->width, image->height);
image->width, image->height, interpolate);
} else {
stream_res->id = 0;
status = _cairo_pdf_surface_open_stream (surface,
@ -1985,8 +1987,9 @@ _cairo_pdf_surface_emit_smask (cairo_pdf_surface_t *surface,
" /Width %d\n"
" /Height %d\n"
" /ColorSpace /DeviceGray\n"
" /Interpolate %s\n"
" /BitsPerComponent %d\n",
image->width, image->height,
image->width, image->height, interpolate,
transparency == CAIRO_IMAGE_HAS_ALPHA ? 8 : 1);
}
if (unlikely (status))
@ -2033,8 +2036,21 @@ _cairo_pdf_surface_emit_image (cairo_pdf_surface_t *surface,
image->format == CAIRO_FORMAT_A8 ||
image->format == CAIRO_FORMAT_A1);
switch (filter) {
case CAIRO_FILTER_GOOD:
case CAIRO_FILTER_BEST:
case CAIRO_FILTER_BILINEAR:
interpolate = "true";
break;
case CAIRO_FILTER_FAST:
case CAIRO_FILTER_NEAREST:
case CAIRO_FILTER_GAUSSIAN:
interpolate = "false";
break;
}
if (stencil_mask)
return _cairo_pdf_surface_emit_smask (surface, image, stencil_mask, image_res);
return _cairo_pdf_surface_emit_smask (surface, image, stencil_mask, interpolate, image_res);
color = _cairo_image_analyze_color (image);
switch (color) {
@ -2122,7 +2138,7 @@ _cairo_pdf_surface_emit_image (cairo_pdf_surface_t *surface,
if (image->format == CAIRO_FORMAT_ARGB32 ||
image->format == CAIRO_FORMAT_A8 ||
image->format == CAIRO_FORMAT_A1) {
status = _cairo_pdf_surface_emit_smask (surface, image, FALSE, &smask);
status = _cairo_pdf_surface_emit_smask (surface, image, FALSE, interpolate, &smask);
if (unlikely (status))
goto CLEANUP_RGB;
@ -2130,19 +2146,6 @@ _cairo_pdf_surface_emit_image (cairo_pdf_surface_t *surface,
need_smask = TRUE;
}
switch (filter) {
case CAIRO_FILTER_GOOD:
case CAIRO_FILTER_BEST:
case CAIRO_FILTER_BILINEAR:
interpolate = "true";
break;
case CAIRO_FILTER_FAST:
case CAIRO_FILTER_NEAREST:
case CAIRO_FILTER_GAUSSIAN:
interpolate = "false";
break;
}
#define IMAGE_DICTIONARY " /Type /XObject\n" \
" /Subtype /Image\n" \
" /Width %d\n" \