106 lines
3.0 KiB
Diff
106 lines
3.0 KiB
Diff
Author: Jeff Muizelaar <jmuizelaar@mozilla.com>
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diff --git a/src/cairo-surface.c b/src/cairo-surface.c
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index 8278694..12f6242 100644
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--- a/src/cairo-surface.c
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+++ b/src/cairo-surface.c
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@@ -1530,6 +1530,70 @@ _cairo_recording_surface_clone_similar (cairo_surface_t *surface,
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return CAIRO_STATUS_SUCCESS;
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}
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+struct acquire_source_image_data
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+{
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+ cairo_surface_t *src;
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+ cairo_image_surface_t *image;
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+ void *image_extra;
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+};
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+
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+static void
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+_wrap_release_source_image (void *data)
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+{
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+ struct acquire_source_image_data *acquire_data = data;
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+ _cairo_surface_release_source_image (acquire_data->src,
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+ acquire_data->image,
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+ acquire_data->image_extra);
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+ free(data);
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+}
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+
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+static cairo_status_t
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+_wrap_image (cairo_surface_t *src,
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+ cairo_image_surface_t *image,
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+ void *image_extra,
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+ cairo_image_surface_t **out)
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+{
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+ static cairo_user_data_key_t wrap_image_key;
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+ cairo_image_surface_t *surface;
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+ cairo_status_t status;
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+
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+ struct acquire_source_image_data *data = malloc (sizeof (*data));
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+ if (unlikely (data == NULL))
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+ return _cairo_error (CAIRO_STATUS_NO_MEMORY);
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+ data->src = src;
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+ data->image = image;
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+ data->image_extra = image_extra;
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+
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+ surface = (cairo_image_surface_t *)
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+ _cairo_image_surface_create_with_pixman_format (image->data,
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+ image->pixman_format,
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+ image->width,
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+ image->height,
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+ image->stride);
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+ status = surface->base.status;
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+ if (status) {
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+ free (data);
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+ return status;
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+ }
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+
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+ status = _cairo_user_data_array_set_data (&surface->base.user_data,
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+ &wrap_image_key,
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+ data,
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+ _wrap_release_source_image);
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+ if (status) {
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+ cairo_surface_destroy (&surface->base);
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+ free (data);
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+ return status;
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+ }
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+
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+ pixman_image_set_component_alpha (
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+ surface->pixman_image,
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+ pixman_image_get_component_alpha (surface->pixman_image));
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+
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+ *out = surface;
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+ return CAIRO_STATUS_SUCCESS;
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+}
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+
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/**
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* _cairo_surface_clone_similar:
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* @surface: a #cairo_surface_t
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@@ -1606,15 +1670,19 @@ _cairo_surface_clone_similar (cairo_surface_t *surface,
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/* If we failed, try again with an image surface */
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status = _cairo_surface_acquire_source_image (src, &image, &image_extra);
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if (status == CAIRO_STATUS_SUCCESS) {
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- status =
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- surface->backend->clone_similar (surface, &image->base,
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- src_x, src_y,
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- width, height,
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- clone_offset_x,
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- clone_offset_y,
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- clone_out);
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-
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- _cairo_surface_release_source_image (src, image, image_extra);
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+ status = _wrap_image(src, image, image_extra, &image);
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+ if (status != CAIRO_STATUS_SUCCESS) {
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+ _cairo_surface_release_source_image (src, image, image_extra);
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+ } else {
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+ status =
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+ surface->backend->clone_similar (surface, &image->base,
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+ src_x, src_y,
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+ width, height,
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+ clone_offset_x,
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+ clone_offset_y,
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+ clone_out);
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+ cairo_surface_destroy(&image->base);
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+ }
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}
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}
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}
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