/**
* cairo_win32_surface_get_dc:
* @surface: a #cairo_surface_t
*
* Returns the HDC associated with this surface, or %NULL if none.
* Also returns %NULL if the surface is not a win32 surface.
*
* A call to cairo_surface_flush() is required before using the HDC to
* ensure that all pending drawing operations are finished and to
* restore any temporary modification cairo has made to its state. A
* call to cairo_surface_mark_dirty() is required after the state or
* the content of the HDC has been modified.
*
* Return value: HDC or %NULL if no HDC available.
*
* Since: 1.2
**/
HDC
cairo_win32_surface_get_dc (cairo_surface_t *surface)
{
if (surface->backend->type == CAIRO_SURFACE_TYPE_WIN32)
return to_win32_surface(surface)->dc;
if (_cairo_surface_is_paginated (surface)) {
cairo_surface_t *target = _cairo_paginated_surface_get_target (surface);
if (target->backend->type == CAIRO_SURFACE_TYPE_WIN32_PRINTING)
return to_win32_surface(target)->dc;
}
return NULL;
}
static cairo_int_status_t
_cairo_win32_display_surface_unmap_image (void *abstract_surface,
cairo_image_surface_t *image)
{
cairo_win32_display_surface_t *surface = abstract_surface;
/* Delay the download until the next flush, which means we also need
* to make sure our sources rare flushed.
*/
TRACE ((stderr, "%s (surface=%d)\n",
__FUNCTION__, to_win32_surface(surface)->base.unique_id));
if (surface->fallback) {
cairo_rectangle_int_t r;
r.x = image->base.device_transform_inverse.x0;
r.y = image->base.device_transform_inverse.y0;
r.width = image->width;
r.height = image->height;
TRACE ((stderr, "%s: adding damage (%d,%d)x(%d,%d)\n",
__FUNCTION__, r.x, r.y, r.width, r.height));
surface->fallback->damage =
_cairo_damage_add_rectangle (surface->fallback->damage, &r);
surface = to_win32_display_surface (surface->fallback);
}
return _cairo_surface_unmap_image (surface->image, image);
}
static cairo_status_t
copy_boxes (cairo_win32_display_surface_t *dst,
const cairo_pattern_t *source,
cairo_boxes_t *boxes)
{
const cairo_surface_pattern_t *pattern;
struct copy_box cb;
cairo_surface_t *surface;
cairo_status_t status;
cairo_win32_surface_t *src;
TRACE ((stderr, "%s\n", __FUNCTION__));
pattern = (const cairo_surface_pattern_t *) source;
surface = _cairo_surface_get_source (pattern->surface, &cb.limit);
if (surface->type == CAIRO_SURFACE_TYPE_IMAGE) {
surface = to_image_surface(surface)->parent;
if (surface == NULL)
return CAIRO_INT_STATUS_UNSUPPORTED;
}
if (surface->type != CAIRO_SURFACE_TYPE_WIN32)
return CAIRO_INT_STATUS_UNSUPPORTED;
if (! _cairo_matrix_is_integer_translation (&source->matrix,
&cb.tx, &cb.ty))
return CAIRO_INT_STATUS_UNSUPPORTED;
src = to_win32_surface(surface);
if (src->format != dst->win32.format &&
!(src->format == CAIRO_FORMAT_ARGB32 && dst->win32.format == CAIRO_FORMAT_RGB24))
{
/* forbid copy different surfaces unless it is from argb32 to
* rgb (dropping alpha) */
return CAIRO_INT_STATUS_UNSUPPORTED;
}
cb.dst = dst->win32.dc;
cb.src = src->dc;
/* First check that the data is entirely within the image */
if (! _cairo_boxes_for_each_box (boxes, source_contains_box, &cb))
return CAIRO_INT_STATUS_UNSUPPORTED;
status = __cairo_surface_flush (surface, 0);
if (status)
return status;
cb.tx += cb.limit.x;
cb.ty += cb.limit.y;
status = CAIRO_STATUS_SUCCESS;
if (! _cairo_boxes_for_each_box (boxes, copy_box, &cb))
status = CAIRO_INT_STATUS_UNSUPPORTED;
_cairo_win32_display_surface_discard_fallback (dst);
return status;
}
static cairo_image_surface_t *
_cairo_win32_display_surface_map_to_image (void *abstract_surface,
const cairo_rectangle_int_t *extents)
{
cairo_win32_display_surface_t *surface = abstract_surface;
cairo_status_t status;
TRACE ((stderr, "%s (surface=%d)\n",
__FUNCTION__, surface->win32.base.unique_id));
if (surface->image)
goto done;
if (surface->fallback == NULL) {
surface->fallback =
_cairo_win32_display_surface_create_for_dc (surface->win32.dc,
surface->win32.format,
surface->win32.extents.width,
surface->win32.extents.height);
if (unlikely (status = surface->fallback->status))
goto err;
if (!BitBlt (to_win32_surface(surface->fallback)->dc,
0, 0,
surface->win32.extents.width,
surface->win32.extents.height,
surface->win32.dc,
0, 0,
SRCCOPY)) {
status = _cairo_error (CAIRO_STATUS_DEVICE_ERROR);
goto err;
}
}
surface = to_win32_display_surface (surface->fallback);
done:
GdiFlush();
return _cairo_surface_map_to_image (surface->image, extents);
err:
cairo_surface_destroy (surface->fallback);
surface->fallback = NULL;
return _cairo_image_surface_create_in_error (status);
}
static cairo_int_status_t
_cairo_win32_display_surface_mask (void *surface,
cairo_operator_t op,
const cairo_pattern_t *source,
const cairo_pattern_t *mask,
const cairo_clip_t *clip)
{
cairo_win32_device_t *device = to_win32_device_from_surface (surface);
TRACE ((stderr, "%s (surface=%d)\n",
__FUNCTION__, to_win32_surface(surface)->base.unique_id));
if (clip == NULL && op == CAIRO_OPERATOR_SOURCE)
_cairo_win32_display_surface_discard_fallback (surface);
return _cairo_compositor_mask (device->compositor,
surface, op, source, mask, clip);
}
static cairo_int_status_t
_cairo_win32_display_surface_glyphs (void *surface,
cairo_operator_t op,
const cairo_pattern_t *source,
cairo_glyph_t *glyphs,
int num_glyphs,
cairo_scaled_font_t *scaled_font,
const cairo_clip_t *clip)
{
cairo_win32_device_t *device = to_win32_device_from_surface (surface);
TRACE ((stderr, "%s (surface=%d)\n",
__FUNCTION__, to_win32_surface(surface)->base.unique_id));
return _cairo_compositor_glyphs (device->compositor, surface,
op, source,
glyphs, num_glyphs, scaled_font,
clip);
}
static cairo_int_status_t
_cairo_win32_display_surface_fill (void *surface,
cairo_operator_t op,
const cairo_pattern_t *source,
const cairo_path_fixed_t *path,
cairo_fill_rule_t fill_rule,
double tolerance,
cairo_antialias_t antialias,
const cairo_clip_t *clip)
{
cairo_win32_device_t *device = to_win32_device_from_surface (surface);
TRACE ((stderr, "%s (surface=%d)\n",
__FUNCTION__, to_win32_surface(surface)->base.unique_id));
return _cairo_compositor_fill (device->compositor, surface,
op, source, path,
fill_rule, tolerance, antialias,
clip);
}