mirror of
https://gitlab.freedesktop.org/cairo/cairo.git
synced 2025-12-21 13:20:12 +01:00
[cairo-pdf-surface] Review error propagation from output stream.
Ensure that errors encountered whilst processing the output stream are propagated back to the surface (and the user).
This commit is contained in:
Chris Wilson
parent
20151fc534
commit
1bccbd88c3
1 changed files with 147 additions and 144 deletions
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@ -164,7 +164,7 @@ _cairo_pdf_surface_add_font (unsigned int font_id,
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static void
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_cairo_pdf_group_resources_init (cairo_pdf_group_resources_t *res);
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static cairo_pdf_resource_t
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static cairo_status_t
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_cairo_pdf_surface_open_stream (cairo_pdf_surface_t *surface,
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cairo_pdf_resource_t *resource,
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cairo_bool_t compressed,
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@ -234,7 +234,7 @@ _cairo_pdf_surface_create_for_stream_internal (cairo_output_stream_t *output,
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double height)
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{
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cairo_pdf_surface_t *surface;
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cairo_status_t status;
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cairo_status_t status, status_ignored;
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surface = malloc (sizeof (cairo_pdf_surface_t));
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if (surface == NULL) {
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@ -264,14 +264,16 @@ _cairo_pdf_surface_create_for_stream_internal (cairo_output_stream_t *output,
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surface->font_subsets = _cairo_scaled_font_subsets_create_composite ();
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if (! surface->font_subsets) {
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_cairo_error_throw (CAIRO_STATUS_NO_MEMORY);
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status = _cairo_error (CAIRO_STATUS_NO_MEMORY);
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goto BAIL0;
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}
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surface->next_available_resource.id = 1;
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surface->pages_resource = _cairo_pdf_surface_new_object (surface);
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if (surface->pages_resource.id == 0)
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if (surface->pages_resource.id == 0) {
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status = _cairo_error (CAIRO_STATUS_NO_MEMORY);
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goto BAIL1;
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}
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surface->compress_content = TRUE;
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surface->pdf_stream.active = FALSE;
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@ -303,7 +305,8 @@ _cairo_pdf_surface_create_for_stream_internal (cairo_output_stream_t *output,
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CAIRO_CONTENT_COLOR_ALPHA,
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width, height,
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&cairo_pdf_surface_paginated_backend);
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if (surface->paginated_surface->status == CAIRO_STATUS_SUCCESS)
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status = surface->paginated_surface->status;
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if (status == CAIRO_STATUS_SUCCESS)
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return surface->paginated_surface;
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BAIL1:
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@ -313,9 +316,9 @@ BAIL0:
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free (surface);
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/* destroy stream on behalf of caller */
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status = _cairo_output_stream_destroy (output);
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status_ignored = _cairo_output_stream_destroy (output);
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return _cairo_surface_create_in_error (CAIRO_STATUS_NO_MEMORY);
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return _cairo_surface_create_in_error (status);
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}
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/**
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@ -344,13 +347,11 @@ cairo_pdf_surface_create_for_stream (cairo_write_func_t write_func,
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double width_in_points,
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double height_in_points)
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{
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cairo_status_t status;
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cairo_output_stream_t *output;
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output = _cairo_output_stream_create (write_func, NULL, closure);
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status = _cairo_output_stream_get_status (output);
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if (status)
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return _cairo_surface_create_in_error (status);
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if (_cairo_output_stream_get_status (output))
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return _cairo_surface_create_in_error (_cairo_output_stream_destroy (output));
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return _cairo_pdf_surface_create_for_stream_internal (output,
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width_in_points,
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@ -381,13 +382,11 @@ cairo_pdf_surface_create (const char *filename,
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double width_in_points,
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double height_in_points)
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{
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cairo_status_t status;
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cairo_output_stream_t *output;
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output = _cairo_output_stream_create_for_filename (filename);
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status = _cairo_output_stream_get_status (output);
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if (status)
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return _cairo_surface_create_in_error (status);
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if (_cairo_output_stream_get_status (output))
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return _cairo_surface_create_in_error (_cairo_output_stream_destroy (output));
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return _cairo_pdf_surface_create_for_stream_internal (output,
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width_in_points,
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@ -813,7 +812,7 @@ _cairo_pdf_surface_add_pdf_pattern (cairo_pdf_surface_t *surface,
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return CAIRO_STATUS_SUCCESS;
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}
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static cairo_pdf_resource_t
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static cairo_status_t
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_cairo_pdf_surface_open_stream (cairo_pdf_surface_t *surface,
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cairo_pdf_resource_t *resource,
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cairo_bool_t compressed,
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@ -830,19 +829,17 @@ _cairo_pdf_surface_open_stream (cairo_pdf_surface_t *surface,
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} else {
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self = _cairo_pdf_surface_new_object (surface);
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if (self.id == 0)
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return self;
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return _cairo_error (CAIRO_STATUS_NO_MEMORY);
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}
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length = _cairo_pdf_surface_new_object (surface);
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if (length.id == 0)
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return length;
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return _cairo_error (CAIRO_STATUS_NO_MEMORY);
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if (compressed) {
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output = _cairo_deflate_stream_create (surface->output);
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if (_cairo_output_stream_get_status (output)) {
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self.id = 0;
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return self;
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}
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if (_cairo_output_stream_get_status (output))
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return _cairo_output_stream_destroy (output);
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}
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surface->pdf_stream.active = TRUE;
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@ -878,7 +875,7 @@ _cairo_pdf_surface_open_stream (cairo_pdf_surface_t *surface,
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_cairo_pdf_operators_set_stream (&surface->pdf_operators, surface->output);
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}
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return surface->pdf_stream.self;
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return _cairo_output_stream_get_status (surface->output);
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}
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static cairo_status_t
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@ -916,6 +913,9 @@ _cairo_pdf_surface_close_stream (cairo_pdf_surface_t *surface)
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surface->pdf_stream.active = FALSE;
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if (status == CAIRO_STATUS_SUCCESS)
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status = _cairo_output_stream_get_status (surface->output);
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return status;
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}
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@ -1058,9 +1058,10 @@ _cairo_pdf_surface_close_group (cairo_pdf_surface_t *surface,
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static cairo_status_t
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_cairo_pdf_surface_open_content_stream (cairo_pdf_surface_t *surface,
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cairo_pdf_resource_t *resource,
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cairo_bool_t is_form)
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{
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cairo_status_t status;
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assert (surface->pdf_stream.active == FALSE);
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assert (surface->group_stream.active == FALSE);
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@ -1069,7 +1070,7 @@ _cairo_pdf_surface_open_content_stream (cairo_pdf_surface_t *surface,
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return _cairo_error (CAIRO_STATUS_NO_MEMORY);
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if (is_form) {
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*resource =
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status =
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_cairo_pdf_surface_open_stream (surface,
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NULL,
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surface->compress_content,
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@ -1085,21 +1086,23 @@ _cairo_pdf_surface_open_content_stream (cairo_pdf_surface_t *surface,
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surface->width,
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surface->height,
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surface->content_resources.id);
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if (resource->id == 0)
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return _cairo_error (CAIRO_STATUS_NO_MEMORY);
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if (status)
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return status;
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} else {
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surface->content =
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status =
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_cairo_pdf_surface_open_stream (surface,
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NULL,
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surface->compress_content,
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NULL);
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if (surface->content.id == 0)
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return _cairo_error (CAIRO_STATUS_NO_MEMORY);
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if (status)
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return status;
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}
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surface->content = surface->pdf_stream.self;
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_cairo_output_stream_printf (surface->output, "q\r\n");
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return CAIRO_STATUS_SUCCESS;
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return _cairo_output_stream_get_status (surface->output);
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}
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static cairo_status_t
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@ -1123,7 +1126,7 @@ _cairo_pdf_surface_close_content_stream (cairo_pdf_surface_t *surface)
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_cairo_output_stream_printf (surface->output,
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"endobj\r\n");
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return CAIRO_STATUS_SUCCESS;
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return _cairo_output_stream_get_status (surface->output);
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}
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static cairo_surface_t *
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@ -1230,7 +1233,7 @@ _cairo_pdf_surface_start_page (void *abstract_surface)
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surface->has_fallback_images = FALSE;
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_cairo_pdf_group_resources_clear (&surface->resources);
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status = _cairo_pdf_surface_open_content_stream (surface, &surface->content, TRUE);
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status = _cairo_pdf_surface_open_content_stream (surface, TRUE);
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if (status)
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return status;
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@ -1281,11 +1284,13 @@ _cairo_pdf_surface_emit_smask (cairo_pdf_surface_t *surface,
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uint8_t a;
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int src_bit, dst_bit;
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/* This is the only image format we support, which simplfies things. */
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/* This is the only image format we support, which simplifies things. */
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assert (image->format == CAIRO_FORMAT_ARGB32 ||
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image->format == CAIRO_FORMAT_A8 ||
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image->format == CAIRO_FORMAT_A1 );
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stream_ret->id = 0;
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if (image->format == CAIRO_FORMAT_A1)
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alpha_size = (image->height * image->width + 7)/8;
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else
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@ -1342,10 +1347,8 @@ _cairo_pdf_surface_emit_smask (cairo_pdf_surface_t *surface,
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}
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/* Bail out without emitting smask if it's all opaque. */
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if (opaque) {
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stream_ret->id = 0;
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if (opaque)
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goto CLEANUP_ALPHA;
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}
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alpha_compressed = compress_dup (alpha, alpha_size, &alpha_compressed_size);
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if (alpha_compressed == NULL) {
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@ -1353,7 +1356,7 @@ _cairo_pdf_surface_emit_smask (cairo_pdf_surface_t *surface,
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goto CLEANUP_ALPHA;
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}
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*stream_ret = _cairo_pdf_surface_open_stream (surface,
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status = _cairo_pdf_surface_open_stream (surface,
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NULL,
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FALSE,
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" /Type /XObject\r\n"
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@ -1365,10 +1368,10 @@ _cairo_pdf_surface_emit_smask (cairo_pdf_surface_t *surface,
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" /Filter /FlateDecode\r\n",
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image->width, image->height,
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image->format == CAIRO_FORMAT_A1 ? 1 : 8);
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if (stream_ret->id == 0) {
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status = _cairo_error (CAIRO_STATUS_NO_MEMORY);
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if (status)
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goto CLEANUP_ALPHA_COMPRESSED;
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}
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*stream_ret = surface->pdf_stream.self;
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_cairo_output_stream_write (surface->output, alpha_compressed, alpha_compressed_size);
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_cairo_output_stream_printf (surface->output, "\r\n");
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@ -1480,7 +1483,7 @@ _cairo_pdf_surface_emit_image (cairo_pdf_surface_t *surface,
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" /Filter /FlateDecode\r\n"
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if (need_smask)
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*image_ret = _cairo_pdf_surface_open_stream (surface,
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status = _cairo_pdf_surface_open_stream (surface,
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NULL,
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FALSE,
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IMAGE_DICTIONARY
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@ -1488,18 +1491,18 @@ _cairo_pdf_surface_emit_image (cairo_pdf_surface_t *surface,
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image->width, image->height,
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smask.id);
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else
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*image_ret = _cairo_pdf_surface_open_stream (surface,
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status = _cairo_pdf_surface_open_stream (surface,
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NULL,
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FALSE,
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IMAGE_DICTIONARY,
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image->width, image->height);
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if (image_ret->id == 0){
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status = _cairo_error (CAIRO_STATUS_NO_MEMORY);
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if (status)
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goto CLEANUP_COMPRESSED;
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}
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#undef IMAGE_DICTIONARY
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*image_ret = surface->pdf_stream.self;
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_cairo_output_stream_write (surface->output, compressed, compressed_size);
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_cairo_output_stream_printf (surface->output, "\r\n");
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status = _cairo_pdf_surface_close_stream (surface);
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@ -1523,10 +1526,10 @@ _cairo_pdf_surface_emit_image_surface (cairo_pdf_surface_t *surface,
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cairo_surface_attributes_t pat_attr;
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cairo_image_surface_t *image;
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void *image_extra;
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cairo_status_t status = CAIRO_STATUS_SUCCESS;
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cairo_status_t status;
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status = _cairo_pattern_acquire_surface ((cairo_pattern_t *)pattern,
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(cairo_surface_t *)surface,
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status = _cairo_pattern_acquire_surface (&pattern->base,
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&surface->base,
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0, 0, -1, -1,
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&pat_surface, &pat_attr);
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if (status)
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@ -1546,7 +1549,7 @@ _cairo_pdf_surface_emit_image_surface (cairo_pdf_surface_t *surface,
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BAIL:
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_cairo_surface_release_source_image (pat_surface, image, image_extra);
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BAIL2:
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_cairo_pattern_release_surface ((cairo_pattern_t *)pattern, pat_surface, &pat_attr);
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_cairo_pattern_release_surface (&pattern->base, pat_surface, &pat_attr);
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return status;
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}
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@ -1583,7 +1586,7 @@ _cairo_pdf_surface_emit_meta_surface (cairo_pdf_surface_t *surface,
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surface->cairo_to_pdf);
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_cairo_pdf_group_resources_clear (&surface->resources);
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status = _cairo_pdf_surface_open_content_stream (surface, &surface->content, TRUE);
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status = _cairo_pdf_surface_open_content_stream (surface, TRUE);
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if (status)
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return status;
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@ -1624,7 +1627,7 @@ _cairo_pdf_surface_emit_surface_pattern (cairo_pdf_surface_t *surface,
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cairo_pdf_pattern_t *pdf_pattern)
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{
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cairo_surface_pattern_t *pattern = (cairo_surface_pattern_t *) pdf_pattern->pattern;
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cairo_status_t status = CAIRO_STATUS_SUCCESS;
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cairo_status_t status;
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cairo_pdf_resource_t pattern_resource = {0}; /* squelch bogus compiler warning */
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cairo_matrix_t cairo_p2d, pdf_p2d;
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cairo_extend_t extend = cairo_pattern_get_extend (&pattern->base);
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@ -1755,7 +1758,7 @@ _cairo_pdf_surface_emit_surface_pattern (cairo_pdf_surface_t *surface,
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cairo_matrix_scale (&pdf_p2d, 1.0, -1.0);
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_cairo_pdf_surface_update_object (surface, pdf_pattern->pattern_res);
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if (_cairo_pdf_surface_open_stream (surface,
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status = _cairo_pdf_surface_open_stream (surface,
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&pdf_pattern->pattern_res,
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FALSE,
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" /PatternType 1\r\n"
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@ -1772,10 +1775,9 @@ _cairo_pdf_surface_emit_surface_pattern (cairo_pdf_surface_t *surface,
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pdf_p2d.xy, pdf_p2d.yy,
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pdf_p2d.x0, pdf_p2d.y0,
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pattern_resource.id,
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pattern_resource.id).id == 0)
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{
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return _cairo_error (CAIRO_STATUS_NO_MEMORY);
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}
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pattern_resource.id);
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if (status)
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return status;
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if (_cairo_surface_is_meta (pattern->surface)) {
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if (extend == CAIRO_EXTEND_REFLECT) {
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@ -1808,7 +1810,7 @@ _cairo_pdf_surface_emit_surface_pattern (cairo_pdf_surface_t *surface,
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if (status)
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return status;
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return CAIRO_STATUS_SUCCESS;
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return _cairo_output_stream_get_status (surface->output);
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}
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typedef struct _cairo_pdf_color_stop {
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@ -1992,7 +1994,7 @@ _cairo_pdf_surface_emit_stitched_colorgradient (cairo_pdf_surface_t *surface,
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*function = res;
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return CAIRO_STATUS_SUCCESS;
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return _cairo_output_stream_get_status (surface->output);
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}
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@ -2085,7 +2087,7 @@ _cairo_pdf_surface_emit_pattern_stops (cairo_pdf_surface_t *surface,
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goto BAIL;
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}
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} else {
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/* multiple stops: stitch. XXX possible optimization: regulary spaced
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/* multiple stops: stitch. XXX possible optimization: regularly spaced
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* stops do not require stitching. XXX */
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status = _cairo_pdf_surface_emit_stitched_colorgradient (surface,
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n_stops,
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@ -2169,7 +2171,7 @@ _cairo_pdf_surface_emit_repeating_function (cairo_pdf_surface_t *surface,
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*function = res;
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return CAIRO_STATUS_SUCCESS;
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return _cairo_output_stream_get_status (surface->output);
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}
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static cairo_status_t
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@ -2177,10 +2179,10 @@ cairo_pdf_surface_emit_transparency_group (cairo_pdf_surface_t *surface,
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cairo_pdf_resource_t gstate_resource,
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cairo_pdf_resource_t gradient_mask)
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{
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cairo_pdf_resource_t xobj_resource, smask_resource;
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cairo_pdf_resource_t smask_resource;
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cairo_status_t status;
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xobj_resource = _cairo_pdf_surface_open_stream (surface,
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status = _cairo_pdf_surface_open_stream (surface,
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NULL,
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surface->compress_content,
|
||||
" /Type /XObject\r\n"
|
||||
|
|
@ -2203,8 +2205,8 @@ cairo_pdf_surface_emit_transparency_group (cairo_pdf_surface_t *surface,
|
|||
surface->height,
|
||||
gradient_mask.id,
|
||||
gradient_mask.id);
|
||||
if (xobj_resource.id == 0)
|
||||
return _cairo_error (CAIRO_STATUS_NO_MEMORY);
|
||||
if (status)
|
||||
return status;
|
||||
|
||||
_cairo_output_stream_printf (surface->output,
|
||||
"q\r\n"
|
||||
|
|
@ -2233,7 +2235,7 @@ cairo_pdf_surface_emit_transparency_group (cairo_pdf_surface_t *surface,
|
|||
">>\r\n"
|
||||
"endobj\r\n",
|
||||
smask_resource.id,
|
||||
xobj_resource.id);
|
||||
surface->pdf_stream.self.id);
|
||||
|
||||
/* Create GState which uses the transparency group as an SMask. */
|
||||
_cairo_pdf_surface_update_object (surface, gstate_resource);
|
||||
|
|
@ -2250,7 +2252,7 @@ cairo_pdf_surface_emit_transparency_group (cairo_pdf_surface_t *surface,
|
|||
gstate_resource.id,
|
||||
smask_resource.id);
|
||||
|
||||
return CAIRO_STATUS_SUCCESS;
|
||||
return _cairo_output_stream_get_status (surface->output);
|
||||
}
|
||||
|
||||
static cairo_status_t
|
||||
|
|
@ -2450,7 +2452,7 @@ _cairo_pdf_surface_emit_linear_pattern (cairo_pdf_surface_t *surface,
|
|||
return status;
|
||||
}
|
||||
|
||||
return CAIRO_STATUS_SUCCESS;
|
||||
return _cairo_output_stream_get_status (surface->output);
|
||||
}
|
||||
|
||||
static cairo_status_t
|
||||
|
|
@ -2567,7 +2569,7 @@ _cairo_pdf_surface_emit_radial_pattern (cairo_pdf_surface_t *surface,
|
|||
return status;
|
||||
}
|
||||
|
||||
return CAIRO_STATUS_SUCCESS;
|
||||
return _cairo_output_stream_get_status (surface->output);
|
||||
}
|
||||
|
||||
static cairo_status_t
|
||||
|
|
@ -2683,7 +2685,7 @@ _cairo_pdf_surface_get_extents (void *abstract_surface,
|
|||
rectangle->y = 0;
|
||||
|
||||
/* XXX: The conversion to integers here is pretty bogus, (not to
|
||||
* mention the aribitray limitation of width to a short(!). We
|
||||
* mention the arbitrary limitation of width to a short(!). We
|
||||
* may need to come up with a better interface for get_size.
|
||||
*/
|
||||
rectangle->width = (int) ceil (surface->width);
|
||||
|
|
@ -2765,7 +2767,7 @@ _cairo_pdf_surface_write_pages (cairo_pdf_surface_t *surface)
|
|||
_cairo_output_stream_printf (surface->output, " /Count %d\r\n", num_pages);
|
||||
|
||||
|
||||
/* TODO: Figure out wich other defaults to be inherited by /Page
|
||||
/* TODO: Figure out which other defaults to be inherited by /Page
|
||||
* objects. */
|
||||
_cairo_output_stream_printf (surface->output,
|
||||
">>\r\n"
|
||||
|
|
@ -2801,12 +2803,12 @@ _cairo_pdf_surface_emit_to_unicode_stream (cairo_pdf_surface_t *surface,
|
|||
return status;
|
||||
}
|
||||
|
||||
*stream = _cairo_pdf_surface_open_stream (surface,
|
||||
status = _cairo_pdf_surface_open_stream (surface,
|
||||
NULL,
|
||||
surface->compress_content,
|
||||
NULL);
|
||||
if (stream->id == 0)
|
||||
return _cairo_error (CAIRO_STATUS_NO_MEMORY);
|
||||
if (status)
|
||||
return status;
|
||||
|
||||
_cairo_output_stream_printf (surface->output,
|
||||
"/CIDInit /ProcSet findresource begin\r\n"
|
||||
|
|
@ -2863,6 +2865,7 @@ _cairo_pdf_surface_emit_to_unicode_stream (cairo_pdf_surface_t *surface,
|
|||
"end\r\n"
|
||||
"end\r\n");
|
||||
|
||||
*stream = surface->pdf_stream.self;
|
||||
return _cairo_pdf_surface_close_stream (surface);
|
||||
}
|
||||
|
||||
|
|
@ -3407,16 +3410,18 @@ _cairo_pdf_surface_emit_bitmap_glyph (cairo_pdf_surface_t *surface,
|
|||
return status;
|
||||
}
|
||||
|
||||
*glyph_ret = _cairo_pdf_surface_open_stream (surface,
|
||||
status = _cairo_pdf_surface_open_stream (surface,
|
||||
NULL,
|
||||
surface->compress_content,
|
||||
NULL);
|
||||
if (glyph_ret->id == 0) {
|
||||
if (status) {
|
||||
if (image != scaled_glyph->surface)
|
||||
cairo_surface_destroy (&image->base);
|
||||
return _cairo_error (CAIRO_STATUS_NO_MEMORY);
|
||||
return status;
|
||||
}
|
||||
|
||||
*glyph_ret = surface->pdf_stream.self;
|
||||
|
||||
_cairo_output_stream_printf (surface->output,
|
||||
"%f 0 %f %f %f %f d1\r\n",
|
||||
x_advance,
|
||||
|
|
@ -4021,7 +4026,7 @@ _cairo_pdf_surface_write_page (cairo_pdf_surface_t *surface)
|
|||
return status;
|
||||
|
||||
_cairo_pdf_group_resources_clear (&surface->resources);
|
||||
status = _cairo_pdf_surface_open_content_stream (surface, &surface->content, FALSE);
|
||||
status = _cairo_pdf_surface_open_content_stream (surface, FALSE);
|
||||
if (status)
|
||||
return status;
|
||||
|
||||
|
|
@ -4215,9 +4220,7 @@ _cairo_pdf_surface_start_fallback (cairo_pdf_surface_t *surface)
|
|||
|
||||
surface->has_fallback_images = TRUE;
|
||||
_cairo_pdf_group_resources_clear (&surface->resources);
|
||||
return _cairo_pdf_surface_open_content_stream (surface,
|
||||
&surface->content,
|
||||
TRUE);
|
||||
return _cairo_pdf_surface_open_content_stream (surface, TRUE);
|
||||
}
|
||||
|
||||
static cairo_int_status_t
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue