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-rw-r--r--src/cairo_ps_surface.c135
1 files changed, 69 insertions, 66 deletions
diff --git a/src/cairo_ps_surface.c b/src/cairo_ps_surface.c
index 4da8162c7..4a45fc679 100644
--- a/src/cairo_ps_surface.c
+++ b/src/cairo_ps_surface.c
@@ -31,7 +31,7 @@
* California.
*
* Contributor(s):
- * Carl D. Worth <cworth@isi.edu>
+ * Carl D. Worth <cworth@cworth.org>
*/
#include "cairoint.h"
@@ -42,6 +42,22 @@
static const cairo_surface_backend_t cairo_ps_surface_backend;
+/**
+ * cairo_set_target_ps:
+ * @cr: a #cairo_t
+ * @file: an open, writeable file
+ * @width_inches: width of the output page, in inches
+ * @height_inches: height of the output page, in inches
+ * @x_pixels_per_inch: X resolution to use for image fallbacks;
+ * not all Cairo drawing can be represented in a postscript
+ * file, so Cairo will write out images for some portions
+ * of the output.
+ * @y_pixels_per_inch: Y resolution to use for image fallbacks.
+ *
+ * Directs output for a #cairo_t to a postscript file. The file must
+ * be kept open until the #cairo_t is destroyed or set to have a
+ * different target, and then must be closed by the application.
+ **/
void
cairo_set_target_ps (cairo_t *cr,
FILE *file,
@@ -192,62 +208,65 @@ _cairo_ps_surface_pixels_per_inch (void *abstract_surface)
return surface->y_ppi;
}
-static cairo_image_surface_t *
-_cairo_ps_surface_get_image (void *abstract_surface)
+static cairo_status_t
+_cairo_ps_surface_acquire_source_image (void *abstract_surface,
+ cairo_image_surface_t **image_out,
+ void **image_extra)
{
cairo_ps_surface_t *surface = abstract_surface;
+
+ *image_out = surface->image;
- cairo_surface_reference (&surface->image->base);
-
- return surface->image;
+ return CAIRO_STATUS_SUCCESS;
}
-static cairo_status_t
-_cairo_ps_surface_set_image (void *abstract_surface,
- cairo_image_surface_t *image)
+static void
+_cairo_ps_surface_release_source_image (void *abstract_surface,
+ cairo_image_surface_t *image,
+ void *image_extra)
{
- cairo_ps_surface_t *surface = abstract_surface;
-
- if (image == surface->image)
- return CAIRO_STATUS_SUCCESS;
-
- /* XXX: Need to call _cairo_image_surface_set_image here, but it's
- not implemented yet. */
-
- return CAIRO_INT_STATUS_UNSUPPORTED;
}
static cairo_status_t
-_cairo_ps_surface_set_matrix (void *abstract_surface,
- cairo_matrix_t *matrix)
+_cairo_ps_surface_acquire_dest_image (void *abstract_surface,
+ cairo_rectangle_t *interest_rect,
+ cairo_image_surface_t **image_out,
+ cairo_rectangle_t *image_rect,
+ void **image_extra)
{
cairo_ps_surface_t *surface = abstract_surface;
+
+ image_rect->x = 0;
+ image_rect->y = 0;
+ image_rect->width = surface->image->width;
+ image_rect->height = surface->image->height;
+
+ *image_out = surface->image;
- return _cairo_image_surface_set_matrix (surface->image, matrix);
+ return CAIRO_STATUS_SUCCESS;
}
-static cairo_status_t
-_cairo_ps_surface_set_filter (void *abstract_surface,
- cairo_filter_t filter)
+static void
+_cairo_ps_surface_release_dest_image (void *abstract_surface,
+ cairo_rectangle_t *interest_rect,
+ cairo_image_surface_t *image,
+ cairo_rectangle_t *image_rect,
+ void *image_extra)
{
- cairo_ps_surface_t *surface = abstract_surface;
-
- return _cairo_image_surface_set_filter (surface->image, filter);
}
static cairo_status_t
-_cairo_ps_surface_set_repeat (void *abstract_surface,
- int repeat)
+_cairo_ps_surface_clone_similar (void *abstract_surface,
+ cairo_surface_t *src,
+ cairo_surface_t **clone_out)
{
- cairo_ps_surface_t *surface = abstract_surface;
-
- return _cairo_image_surface_set_repeat (surface->image, repeat);
+ return CAIRO_INT_STATUS_UNSUPPORTED;
}
static cairo_int_status_t
_cairo_ps_surface_composite (cairo_operator_t operator,
- cairo_surface_t *generic_src,
- cairo_surface_t *generic_mask,
+ cairo_pattern_t *src,
+ cairo_pattern_t *mask,
void *abstract_dst,
int src_x,
int src_y,
@@ -273,10 +292,14 @@ _cairo_ps_surface_fill_rectangles (void *abstract_surface,
static cairo_int_status_t
_cairo_ps_surface_composite_trapezoids (cairo_operator_t operator,
- cairo_surface_t *generic_src,
+ cairo_pattern_t *generic_src,
void *abstract_dst,
int x_src,
int y_src,
+ int x_dst,
+ int y_dst,
+ unsigned int width,
+ unsigned int height,
cairo_trapezoid_t *traps,
int num_traps)
{
@@ -294,12 +317,10 @@ _cairo_ps_surface_copy_page (void *abstract_surface)
int i, x, y;
- cairo_surface_t *white_surface;
+ cairo_solid_pattern_t white_pattern;
char *rgb, *compressed;
long rgb_size, compressed_size;
- cairo_color_t white;
-
rgb_size = 3 * width * height;
rgb = malloc (rgb_size);
if (rgb == NULL) {
@@ -316,26 +337,19 @@ _cairo_ps_surface_copy_page (void *abstract_surface)
/* PostScript can not represent the alpha channel, so we blend the
current image over a white RGB surface to eliminate it. */
- white_surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, 1, 1);
- if (white_surface == NULL) {
- status = CAIRO_STATUS_NO_MEMORY;
- goto BAIL2;
- }
- _cairo_color_init (&white);
- _cairo_surface_fill_rectangle (white_surface,
- CAIRO_OPERATOR_SRC,
- &white,
- 0, 0, 1, 1);
- cairo_surface_set_repeat (white_surface, 1);
+ _cairo_pattern_init_solid (&white_pattern, 1.0, 1.0, 1.0);
+
_cairo_surface_composite (CAIRO_OPERATOR_OVER_REVERSE,
- white_surface,
+ &white_pattern.base,
NULL,
&surface->image->base,
0, 0,
0, 0,
0, 0,
width, height);
+
+ _cairo_pattern_fini (&white_pattern.base);
i = 0;
for (y = 0; y < height; y++) {
@@ -379,8 +393,6 @@ _cairo_ps_surface_copy_page (void *abstract_surface)
/* Page footer */
fprintf (file, "%%%%EndPage\n");
- cairo_surface_destroy (white_surface);
- BAIL2:
free (compressed);
BAIL1:
free (rgb);
@@ -412,29 +424,20 @@ _cairo_ps_surface_set_clip_region (void *abstract_surface,
return _cairo_image_surface_set_clip_region (surface->image, region);
}
-static cairo_int_status_t
-_cairo_ps_surface_create_pattern (void *abstract_surface,
- cairo_pattern_t *pattern,
- cairo_box_t *extents)
-{
- return CAIRO_INT_STATUS_UNSUPPORTED;
-}
-
static const cairo_surface_backend_t cairo_ps_surface_backend = {
_cairo_ps_surface_create_similar,
_cairo_ps_surface_destroy,
_cairo_ps_surface_pixels_per_inch,
- _cairo_ps_surface_get_image,
- _cairo_ps_surface_set_image,
- _cairo_ps_surface_set_matrix,
- _cairo_ps_surface_set_filter,
- _cairo_ps_surface_set_repeat,
+ _cairo_ps_surface_acquire_source_image,
+ _cairo_ps_surface_release_source_image,
+ _cairo_ps_surface_acquire_dest_image,
+ _cairo_ps_surface_release_dest_image,
+ _cairo_ps_surface_clone_similar,
_cairo_ps_surface_composite,
_cairo_ps_surface_fill_rectangles,
_cairo_ps_surface_composite_trapezoids,
_cairo_ps_surface_copy_page,
_cairo_ps_surface_show_page,
_cairo_ps_surface_set_clip_region,
- _cairo_ps_surface_create_pattern,
NULL /* show_glyphs */
};
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-25 10:05:49 +0000