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Support image surface patterns

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This commit is contained in:
Keith Packard 2006-02-27 17:49:53 -08:00
parent f9d4482137
commit 06b83b89fc
1 changed files with 31 additions and 8 deletions
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39
src/cairo-ps-surface.c
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@ -672,7 +672,8 @@ compress_dup (const void *data, unsigned long data_size,
static cairo_status_t
emit_image (cairo_ps_surface_t *surface,
cairo_image_surface_t *image,
cairo_matrix_t *matrix)
cairo_matrix_t *matrix,
char *name)
{
cairo_status_t status;
unsigned char *rgb, *compressed;
@ -751,6 +752,17 @@ emit_image (cairo_ps_surface_t *surface,
cairo_matrix_init (&d2i, 1, 0, 0, 1, 0, 0);
cairo_matrix_multiply (&d2i, &d2i, matrix);
_cairo_output_stream_printf (surface->stream, "/%sString %d string def\n",
name, (int) rgb_size);
_cairo_output_stream_printf (surface->stream,
"currentfile %sString readstring\n", name);
/* Compressed image data */
_cairo_output_stream_write (surface->stream, rgb, rgb_size);
_cairo_output_stream_printf (surface->stream,
"\n");
_cairo_output_stream_printf (surface->stream, "/%s {\n", name);
_cairo_output_stream_printf (surface->stream,
"/DeviceRGB setcolorspace\n"
"<<\n"
@ -759,23 +771,20 @@ emit_image (cairo_ps_surface_t *surface,
" /Height %d\n"
" /BitsPerComponent 8\n"
" /Decode [ 0 1 0 1 0 1 ]\n"
" /DataSource currentfile\n"
" /DataSource %sString\n"
" /ImageMatrix [ %f %f %f %f %f %f ]\n"
">>\n"
"image\n",
opaque_image->width,
opaque_image->height,
name,
d2i.xx, d2i.yx,
d2i.xy, d2i.yy,
d2i.x0, d2i.y0);
_cairo_output_stream_printf (surface->stream, "} def\n");
/* Compressed image data */
_cairo_output_stream_write (surface->stream, rgb, rgb_size);
status = CAIRO_STATUS_SUCCESS;
_cairo_output_stream_printf (surface->stream,
"\n");
free (compressed);
bail2:
free (rgb);
@ -809,12 +818,26 @@ emit_surface_pattern (cairo_ps_surface_t *surface,
cairo_image_surface_t *image;
cairo_status_t status;
void *image_extra;
cairo_rectangle_t extents;
status = _cairo_surface_acquire_source_image (pattern->surface,
&image,
&image_extra);
assert (status == CAIRO_STATUS_SUCCESS);
emit_image (surface, image, &pattern->base.matrix);
emit_image (surface, image, &pattern->base.matrix, "MyPattern");
_cairo_output_stream_printf (surface->stream,
"<< /PatternType 1 /PaintType 1 /TilingType 1\n");
_cairo_surface_get_extents (&image->base, &extents);
_cairo_output_stream_printf (surface->stream,
"/BBox [0 0 %d %d]\n",
extents.width, extents.height);
_cairo_output_stream_printf (surface->stream,
"/XStep %d /YStep %d\n",
extents.width, extents.height);
_cairo_output_stream_printf (surface->stream,
"/PaintProc { begin MyPattern\n");
_cairo_output_stream_printf (surface->stream,
" end } bind >> matrix makepattern setpattern\n");
}
static void