/**
* cairo_surface_create_for_rectangle:
* @target: an existing surface for which the sub-surface will point to
* @x: the x-origin of the sub-surface from the top-left of the target surface (in device-space units)
* @y: the y-origin of the sub-surface from the top-left of the target surface (in device-space units)
* @width: width of the sub-surface (in device-space units)
* @height: height of the sub-surface (in device-space units)
*
* Create a new surface that is a rectangle within the target surface.
* All operations drawn to this surface are then clipped and translated
* onto the target surface. Nothing drawn via this sub-surface outside of
* its bounds is drawn onto the target surface, making this a useful method
* for passing constrained child surfaces to library routines that draw
* directly onto the parent surface, i.e. with no further backend allocations,
* double buffering or copies.
*
* <note><para>The semantics of subsurfaces have not been finalized yet
* unless the rectangle is in full device units, is contained within
* the extents of the target surface, and the target or subsurface's
* device transforms are not changed.</para></note>
*
* Return value: a pointer to the newly allocated surface. The caller
* owns the surface and should call cairo_surface_destroy() when done
* with it.
*
* This function always returns a valid pointer, but it will return a
* pointer to a "nil" surface if @other is already in an error state
* or any other error occurs.
*
* Since: 1.10
**/
cairo_surface_t *
cairo_surface_create_for_rectangle (cairo_surface_t *target,
double x, double y,
double width, double height)
{
cairo_surface_subsurface_t *surface;
if (unlikely (width < 0 || height < 0))
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_SIZE));
if (unlikely (target->status))
return _cairo_surface_create_in_error (target->status);
if (unlikely (target->finished))
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_SURFACE_FINISHED));
surface = malloc (sizeof (cairo_surface_subsurface_t));
if (unlikely (surface == NULL))
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
x *= target->device_transform.xx;
y *= target->device_transform.yy;
width *= target->device_transform.xx;
height *= target->device_transform.yy;
x += target->device_transform.x0;
y += target->device_transform.y0;
_cairo_surface_init (&surface->base,
&_cairo_surface_subsurface_backend,
NULL, /* device */
target->content);
/* XXX forced integer alignment */
surface->extents.x = ceil (x);
surface->extents.y = ceil (y);
surface->extents.width = floor (x + width) - surface->extents.x;
surface->extents.height = floor (y + height) - surface->extents.y;
if ((surface->extents.width | surface->extents.height) < 0)
surface->extents.width = surface->extents.height = 0;
if (target->backend->type == CAIRO_SURFACE_TYPE_SUBSURFACE) {
/* Maintain subsurfaces as 1-depth */
cairo_surface_subsurface_t *sub = (cairo_surface_subsurface_t *) target;
surface->extents.x += sub->extents.x;
surface->extents.y += sub->extents.y;
target = sub->target;
}
surface->target = cairo_surface_reference (target);
surface->base.type = surface->target->type;
surface->snapshot = NULL;
cairo_surface_set_device_scale (&surface->base,
target->device_transform.xx,
target->device_transform.yy);
return &surface->base;
}
cairo_surface_t * cairo_xynth_surface_create (unsigned int width, unsigned int height, cairo_format_t cairo_format)
{
S_RENDER_FORMAT render_format;
cairo_xynth_surface_t *surface;
ENTER();
if (!CAIRO_FORMAT_VALID(cairo_format)) {
_cairo_error(CAIRO_STATUS_INVALID_FORMAT);
return NULL;
}
render_format = _cairo_xynth_format_from_cairo_format(cairo_format);
if (render_format == S_RENDER_FORMAT_NONE) {
_cairo_error(CAIRO_STATUS_INVALID_FORMAT);
return NULL;
}
surface = (cairo_xynth_surface_t *) malloc(sizeof(cairo_xynth_surface_t));
if (surface == NULL) {
_cairo_error(CAIRO_STATUS_NO_MEMORY);
return NULL;
}
memset(surface, 0, sizeof(cairo_xynth_surface_t));
if (s_render_init(&surface->render, render_format, width, height)) {
free(surface);
_cairo_error(CAIRO_STATUS_NO_MEMORY);
return NULL;
}
_cairo_surface_init(&surface->cairo, &cairo_xynth_surface_backend, _cairo_content_from_format(cairo_format));
LEAVE();
return &surface->cairo;
}
cairo_surface_t *
_cairo_gl_pattern_to_source (cairo_surface_t *dst,
const cairo_pattern_t *pattern,
cairo_bool_t is_mask,
const cairo_rectangle_int_t *extents,
const cairo_rectangle_int_t *sample,
int *src_x, int *src_y)
{
cairo_gl_source_t *source;
cairo_int_status_t status;
TRACE ((stderr, "%s\n", __FUNCTION__));
if (pattern == NULL)
return _cairo_gl_white_source ();
source = malloc (sizeof (*source));
if (unlikely (source == NULL))
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
_cairo_surface_init (&source->base,
&cairo_gl_source_backend,
NULL, /* device */
CAIRO_CONTENT_COLOR_ALPHA);
*src_x = *src_y = 0;
status = _cairo_gl_operand_init (&source->operand, pattern,
(cairo_gl_surface_t *)dst,
sample, extents, FALSE);
if (unlikely (status)) {
cairo_surface_destroy (&source->base);
return _cairo_surface_create_in_error (status);
}
return &source->base;
}
cairo_surface_t *
cairo_tee_surface_create (cairo_surface_t *master)
{
cairo_tee_surface_t *surface;
if (unlikely (master->status))
return _cairo_surface_create_in_error (master->status);
surface = malloc (sizeof (cairo_tee_surface_t));
if (unlikely (surface == NULL))
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
_cairo_surface_init (&surface->base,
&cairo_tee_surface_backend,
master->content);
_cairo_surface_wrapper_init (&surface->master, master);
/* we trust that these are already set and remain constant */
surface->base.device_transform = master->device_transform;
surface->base.device_transform_inverse = master->device_transform_inverse;
_cairo_array_init (&surface->slaves, sizeof (cairo_surface_wrapper_t));
return &surface->base;
}
cairo_surface_t *
_cairo_test_fallback_surface_create (cairo_content_t content,
int width,
int height)
{
test_fallback_surface_t *surface;
cairo_surface_t *backing;
backing = _cairo_image_surface_create_with_content (content, width, height);
if (cairo_surface_status (backing))
return (cairo_surface_t*) &_cairo_surface_nil;
surface = malloc (sizeof (test_fallback_surface_t));
if (surface == NULL) {
cairo_surface_destroy (backing);
_cairo_error (CAIRO_STATUS_NO_MEMORY);
return (cairo_surface_t*) &_cairo_surface_nil;
}
_cairo_surface_init (&surface->base, &test_fallback_surface_backend,
content);
surface->backing = backing;
return &surface->base;
}
cairo_surface_t *
_cairo_type3_glyph_surface_create (cairo_scaled_font_t *scaled_font,
cairo_output_stream_t *stream,
cairo_type3_glyph_surface_emit_image_t emit_image,
cairo_scaled_font_subsets_t *font_subsets)
{
cairo_type3_glyph_surface_t *surface;
cairo_matrix_t invert_y_axis;
surface = malloc (sizeof (cairo_type3_glyph_surface_t));
if (surface == NULL)
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
_cairo_surface_init (&surface->base, &cairo_type3_glyph_surface_backend,
CAIRO_CONTENT_COLOR_ALPHA);
surface->scaled_font = scaled_font;
surface->stream = stream;
surface->emit_image = emit_image;
/* Setup the transform from the user-font device space to Type 3
* font space. The Type 3 font space is defined by the FontMatrix
* entry in the Type 3 dictionary. In the PDF backend this is an
* identity matrix. */
surface->cairo_to_pdf = scaled_font->scale_inverse;
cairo_matrix_init_scale (&invert_y_axis, 1, -1);
cairo_matrix_multiply (&surface->cairo_to_pdf, &surface->cairo_to_pdf, &invert_y_axis);
_cairo_pdf_operators_init (&surface->pdf_operators,
surface->stream,
&surface->cairo_to_pdf,
font_subsets);
return &surface->base;
}
cairo_surface_t *cairo_quartz_surface_create(CGContextRef context,
int width,
int height,
cairo_bool_t y_grows_down)
{
cairo_quartz_surface_t *surface;
CGRect clip_box;
surface = malloc(sizeof(cairo_quartz_surface_t));
if (surface == NULL) {
_cairo_error (CAIRO_STATUS_NO_MEMORY);
return (cairo_surface_t*) &_cairo_surface_nil;
}
/* XXX: The content value here might be totally wrong. */
_cairo_surface_init(&surface->base, &cairo_quartz_surface_backend,
CAIRO_CONTENT_COLOR_ALPHA);
surface->context = context;
surface->clip_region = NULL;
surface->y_grows_down = y_grows_down;
clip_box = CGContextGetClipBoundingBox (context);
surface->extents.x = clip_box.origin.x;
surface->extents.y = clip_box.origin.y;
surface->extents.width = clip_box.size.width;
surface->extents.height = clip_box.size.height;
return (cairo_surface_t *) surface;
}
cairo_surface_t *
_cairo_surface_create_for_rectangle_int (cairo_surface_t *target,
const cairo_rectangle_int_t *extents)
{
cairo_surface_subsurface_t *surface;
if (unlikely (target->status))
return _cairo_surface_create_in_error (target->status);
if (unlikely (target->finished))
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_SURFACE_FINISHED));
assert (target->backend->type != CAIRO_SURFACE_TYPE_SUBSURFACE);
surface = malloc (sizeof (cairo_surface_subsurface_t));
if (unlikely (surface == NULL))
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
assert (_cairo_matrix_is_translation (&target->device_transform));
_cairo_surface_init (&surface->base,
&_cairo_surface_subsurface_backend,
NULL, /* device */
target->content);
surface->extents = *extents;
surface->extents.x += target->device_transform.x0;
surface->extents.y += target->device_transform.y0;
surface->target = cairo_surface_reference (target);
surface->base.type = surface->target->type;
surface->snapshot = NULL;
return &surface->base;
}
/* Currently all meta surfaces do have a size which should be passed
* in as the maximum size of any target surface against which the
* meta-surface will ever be replayed.
*
* XXX: The naming of "pixels" in the size here is a misnomer. It's
* actually a size in whatever device-space units are desired (again,
* according to the intended replay target). This should likely also
* be changed to use doubles not ints.
*/
cairo_surface_t *
_cairo_meta_surface_create (cairo_content_t content,
int width_pixels,
int height_pixels)
{
cairo_meta_surface_t *meta;
meta = malloc (sizeof (cairo_meta_surface_t));
if (meta == NULL)
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
_cairo_surface_init (&meta->base, &cairo_meta_surface_backend,
content);
meta->content = content;
meta->width_pixels = width_pixels;
meta->height_pixels = height_pixels;
_cairo_array_init (&meta->commands, sizeof (cairo_command_t *));
meta->commands_owner = NULL;
meta->is_clipped = FALSE;
meta->replay_start_idx = 0;
return &meta->base;
}
static cairo_surface_t *
gallium_surface_create_internal (gallium_device_t *device,
enum pipe_format pipe_format,
int width, int height)
{
gallium_surface_t *surface;
struct pipe_resource template;
cairo_status_t status;
cairo_format_t format;
int stride, size;
surface = malloc (sizeof (gallium_surface_t));
if (unlikely (surface == NULL))
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
format = _cairo_format_from_pipe_format (pipe_format);
_cairo_surface_init (&surface->drm.base,
&gallium_surface_backend,
&device->drm.base,
_cairo_content_from_format (format));
_cairo_drm_surface_init (&surface->drm, format, width, height);
stride = gallium_format_stride_for_width (pipe_format, width);
size = stride * height;
surface->drm.stride = stride;
surface->drm.bo = _gallium_fake_bo_create (size, 0);
memset(&template, 0, sizeof(template));
static cairo_xcb_pixmap_t *
_cairo_xcb_pixmap_create (cairo_xcb_surface_t *target,
int width, int height)
{
cairo_xcb_pixmap_t *surface;
surface = malloc (sizeof (cairo_xcb_pixmap_t));
if (unlikely (surface == NULL))
return (cairo_xcb_pixmap_t *)
_cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
_cairo_surface_init (&surface->base,
&_cairo_xcb_pixmap_backend,
NULL,
target->base.content);
surface->connection = target->connection;
surface->screen = target->screen;
surface->owner = NULL;
surface->width = width;
surface->height = height;
surface->depth = target->depth;
surface->x0 = surface->y0 = 0;
surface->repeat = FALSE;
surface->pixmap =
_cairo_xcb_connection_create_pixmap (surface->connection,
surface->depth,
target->drawable,
width, height);
return surface;
}
cairo_surface_t *
_cairo_test_fallback16_surface_create (cairo_content_t content,
int width,
int height)
{
test_fallback16_surface_t *surface;
cairo_surface_t *backing;
pixman_format_code_t format;
format = content & CAIRO_CONTENT_ALPHA ? PIXMAN_a1r5g5b5: PIXMAN_r5g6b5;
backing = _cairo_image_surface_create_with_pixman_format (NULL, format,
width, height,
-1);
if (cairo_surface_status (backing))
return backing;
surface = malloc (sizeof (test_fallback16_surface_t));
if (unlikely (surface == NULL)) {
cairo_surface_destroy (backing);
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
}
_cairo_surface_init (&surface->base,
&test_fallback16_surface_backend,
content);
surface->backing = backing;
return &surface->base;
}
cairo_surface_t *
_cairo_image_surface_create_for_pixman_image (pixman_image_t *pixman_image,
cairo_format_t format)
{
cairo_image_surface_t *surface;
surface = malloc (sizeof (cairo_image_surface_t));
if (surface == NULL) {
_cairo_error (CAIRO_STATUS_NO_MEMORY);
return (cairo_surface_t*) &_cairo_surface_nil;
}
_cairo_surface_init (&surface->base, &cairo_image_surface_backend);
surface->pixman_image = pixman_image;
surface->format = format;
surface->data = (unsigned char *) pixman_image_get_data (pixman_image);
surface->owns_data = FALSE;
surface->has_clip = FALSE;
surface->width = pixman_image_get_width (pixman_image);
surface->height = pixman_image_get_height (pixman_image);
surface->stride = pixman_image_get_stride (pixman_image);
surface->depth = pixman_image_get_depth (pixman_image);
return &surface->base;
}
cairo_surface_t *
_cairo_image_surface_create_for_pixman_image (pixman_image_t *pixman_image,
pixman_format_code_t pixman_format)
{
cairo_image_surface_t *surface;
surface = malloc (sizeof (cairo_image_surface_t));
if (surface == NULL)
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
_cairo_surface_init (&surface->base, &_cairo_image_surface_backend,
_cairo_content_from_pixman_format (pixman_format));
surface->pixman_image = pixman_image;
surface->pixman_format = pixman_format;
surface->format = _cairo_format_from_pixman_format (pixman_format);
surface->data = (unsigned char *) pixman_image_get_data (pixman_image);
surface->owns_data = FALSE;
surface->has_clip = FALSE;
surface->transparency = CAIRO_IMAGE_UNKNOWN;
surface->width = pixman_image_get_width (pixman_image);
surface->height = pixman_image_get_height (pixman_image);
surface->stride = pixman_image_get_stride (pixman_image);
surface->depth = pixman_image_get_depth (pixman_image);
return &surface->base;
}
cairo_surface_t *
_cairo_xcb_surface_create_internal (cairo_xcb_screen_t *screen,
xcb_drawable_t drawable,
cairo_bool_t owns_pixmap,
pixman_format_code_t pixman_format,
xcb_render_pictformat_t xrender_format,
int width,
int height)
{
cairo_xcb_surface_t *surface;
surface = malloc (sizeof (cairo_xcb_surface_t));
if (unlikely (surface == NULL))
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
_cairo_surface_init (&surface->base,
&_cairo_xcb_surface_backend,
&screen->connection->device,
_cairo_content_from_pixman_format (pixman_format));
surface->connection = _cairo_xcb_connection_reference (screen->connection);
surface->screen = screen;
cairo_list_add (&surface->link, &screen->surfaces);
surface->fallback = NULL;
surface->drawable = drawable;
surface->owns_pixmap = owns_pixmap;
surface->use_pixmap = 0;
surface->deferred_clear = FALSE;
surface->width = width;
surface->height = height;
surface->depth = PIXMAN_FORMAT_DEPTH (pixman_format);
surface->picture = XCB_NONE;
surface->pixman_format = pixman_format;
surface->xrender_format = xrender_format;
surface->flags = screen->connection->flags;
surface->marked_dirty = FALSE;
surface->drm = NULL;
if (screen->device != NULL) {
surface->drm = _xcb_drm_create_surface_for_drawable (surface->connection,
surface->screen,
drawable,
pixman_format,
width, height);
}
return &surface->base;
}
/**
* _cairo_surface_snapshot:
* @surface: a #cairo_surface_t
*
* Make an immutable reference to @surface. It is an error to call a
* surface-modifying function on the result of this function. The
* resulting 'snapshot' is a lazily copied-on-write surface i.e. it
* remains a reference to the original surface until that surface is
* written to again, at which time a copy is made of the original surface
* and the snapshot then points to that instead. Multiple snapshots of the
* same unmodified surface point to the same copy.
*
* The caller owns the return value and should call
* cairo_surface_destroy() when finished with it. This function will not
* return %NULL, but will return a nil surface instead.
*
* Return value: The snapshot surface. Note that the return surface
* may not necessarily be of the same type as @surface.
**/
cairo_surface_t *
_cairo_surface_snapshot (cairo_surface_t *surface)
{
cairo_surface_snapshot_t *snapshot;
cairo_status_t status;
TRACE ((stderr, "%s: target=%d\n", __FUNCTION__, surface->unique_id));
if (unlikely (surface->status))
return _cairo_surface_create_in_error (surface->status);
if (unlikely (surface->finished))
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_SURFACE_FINISHED));
if (surface->snapshot_of != NULL)
return cairo_surface_reference (surface);
if (_cairo_surface_is_snapshot (surface))
return cairo_surface_reference (surface);
snapshot = (cairo_surface_snapshot_t *)
_cairo_surface_has_snapshot (surface, &_cairo_surface_snapshot_backend);
if (snapshot != NULL)
return cairo_surface_reference (&snapshot->base);
snapshot = malloc (sizeof (cairo_surface_snapshot_t));
if (unlikely (snapshot == NULL))
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_SURFACE_FINISHED));
_cairo_surface_init (&snapshot->base,
&_cairo_surface_snapshot_backend,
NULL, /* device */
surface->content);
snapshot->base.type = surface->type;
CAIRO_MUTEX_INIT (snapshot->mutex);
snapshot->target = surface;
snapshot->clone = NULL;
status = _cairo_surface_copy_mime_data (&snapshot->base, surface);
if (unlikely (status)) {
cairo_surface_destroy (&snapshot->base);
return _cairo_surface_create_in_error (status);
}
snapshot->base.device_transform = surface->device_transform;
snapshot->base.device_transform_inverse = surface->device_transform_inverse;
_cairo_surface_attach_snapshot (surface,
&snapshot->base,
_cairo_surface_snapshot_copy_on_write);
return &snapshot->base;
}
static void
radeon_surface_init (radeon_surface_t *surface,
cairo_drm_device_t *device,
cairo_format_t format,
int width, int height)
{
_cairo_surface_init (&surface->base.base,
&radeon_surface_backend,
&device->base,
_cairo_content_from_format (format));
_cairo_drm_surface_init (&surface->base, format, width, height);
}
cairo_surface_t *
_cairo_analysis_surface_create (cairo_surface_t *target,
int width,
int height)
{
cairo_analysis_surface_t *surface;
cairo_status_t status;
status = target->status;
if (unlikely (status))
return _cairo_surface_create_in_error (status);
surface = malloc (sizeof (cairo_analysis_surface_t));
if (unlikely (surface == NULL))
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
/* I believe the content type here is truly arbitrary. I'm quite
* sure nothing will ever use this value. */
_cairo_surface_init (&surface->base, &cairo_analysis_surface_backend,
CAIRO_CONTENT_COLOR_ALPHA);
surface->width = width;
surface->height = height;
cairo_matrix_init_identity (&surface->ctm);
surface->has_ctm = FALSE;
surface->target = cairo_surface_reference (target);
surface->first_op = TRUE;
surface->has_supported = FALSE;
surface->has_unsupported = FALSE;
surface->page_bbox.p1.x = 0;
surface->page_bbox.p1.y = 0;
surface->page_bbox.p2.x = 0;
surface->page_bbox.p2.y = 0;
_cairo_region_init (&surface->supported_region);
_cairo_region_init (&surface->fallback_region);
if (width == -1 && height == -1) {
surface->current_clip.x = CAIRO_RECT_INT_MIN;
surface->current_clip.y = CAIRO_RECT_INT_MIN;
surface->current_clip.width = CAIRO_RECT_INT_MAX - CAIRO_RECT_INT_MIN;
surface->current_clip.height = CAIRO_RECT_INT_MAX - CAIRO_RECT_INT_MIN;
} else {
surface->current_clip.x = 0;
surface->current_clip.y = 0;
surface->current_clip.width = width;
surface->current_clip.height = height;
}
return &surface->base;
}
cairo_surface_t *
cairo_qt_surface_create_with_qpixmap (cairo_content_t content,
int width,
int height)
{
cairo_qt_surface_t *qs;
if ((content & CAIRO_CONTENT_COLOR) == 0)
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_CONTENT));
qs = (cairo_qt_surface_t *) malloc (sizeof(cairo_qt_surface_t));
if (qs == NULL)
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
memset (qs, 0, sizeof(cairo_qt_surface_t));
QPixmap *pixmap = new QPixmap (width, height);
if (pixmap == NULL) {
free (qs);
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
}
// By default, a QPixmap is opaque; however, if it's filled
// with a color with a transparency component, it is converted
// to a format that preserves transparency.
if (content == CAIRO_CONTENT_COLOR_ALPHA)
pixmap->fill(Qt::transparent);
_cairo_surface_init (&qs->base,
&cairo_qt_surface_backend,
NULL, /* device */
content);
_cairo_surface_clipper_init (&qs->clipper,
_cairo_qt_surface_clipper_intersect_clip_path);
qs->pixmap = pixmap;
if (!pixmap->isNull()) {
qs->p = new QPainter(pixmap);
qs->supports_porter_duff = qs->p->paintEngine()->hasFeature(QPaintEngine::PorterDuff);
}
qs->window = QRect(0, 0, width, height);
D(fprintf(stderr, "qpainter_surface_create: qpixmap: [%d %d %d %d] pd:%d\n",
qs->window.x(), qs->window.y(), qs->window.width(), qs->window.height(),
qs->supports_porter_duff));
return &qs->base;
}
cairo_surface_t *
_cairo_null_surface_create (cairo_content_t content)
{
cairo_surface_t *surface;
surface = malloc (sizeof (cairo_surface_t));
if (unlikely (surface == NULL)) {
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
}
_cairo_surface_init (surface, &cairo_null_surface_backend, content);
return surface;
}
cairo_surface_t *
cairo_gral_surface_create (gral_surface_t *gral_surf)
{
cairo_gral_surface_t *s;
s = (cairo_gral_surface_t *) malloc(sizeof(cairo_gral_surface_t));
memset(s, 0, sizeof(cairo_gral_surface_t));
_cairo_surface_init(&s->base, &_cairo_gral_surface_backend, CAIRO_CONTENT_COLOR_ALPHA);
s->gral_surf = gral_surf;
s->gpu = _cairo_gral_gpu_resources_acquire ();
return (cairo_surface_t *) s;
}
cairo_surface_t *
_cairo_xcb_surface_create_internal (cairo_xcb_screen_t *screen,
xcb_drawable_t drawable,
cairo_bool_t owns_pixmap,
pixman_format_code_t pixman_format,
xcb_render_pictformat_t xrender_format,
int width,
int height)
{
cairo_xcb_surface_t *surface;
surface = malloc (sizeof (cairo_xcb_surface_t));
if (unlikely (surface == NULL))
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
_cairo_surface_init (&surface->base,
&_cairo_xcb_surface_backend,
&screen->connection->device,
_cairo_content_from_pixman_format (pixman_format),
FALSE); /* is_vector */
surface->connection = _cairo_xcb_connection_reference (screen->connection);
surface->screen = screen;
cairo_list_add (&surface->link, &screen->surfaces);
surface->drawable = drawable;
surface->owns_pixmap = owns_pixmap;
surface->deferred_clear = FALSE;
surface->deferred_clear_color = *CAIRO_COLOR_TRANSPARENT;
surface->width = width;
surface->height = height;
surface->depth = PIXMAN_FORMAT_DEPTH (pixman_format);
surface->picture = XCB_NONE;
if (screen->connection->force_precision != -1)
surface->precision = screen->connection->force_precision;
else
surface->precision = XCB_RENDER_POLY_MODE_IMPRECISE;
surface->pixman_format = pixman_format;
surface->xrender_format = xrender_format;
surface->fallback = NULL;
_cairo_boxes_init (&surface->fallback_damage);
return &surface->base;
}
void
intel_surface_init (intel_surface_t *surface,
const cairo_surface_backend_t *backend,
cairo_drm_device_t *device,
cairo_format_t format,
int width, int height)
{
_cairo_surface_init (&surface->drm.base,
backend,
&device->base,
_cairo_content_from_format (format));
_cairo_drm_surface_init (&surface->drm, format, width, height);
surface->snapshot_cache_entry.hash = 0;
}
/**
* cairo_recording_surface_create:
* @content: the content of the recording surface
* @extents: the extents to record in pixels, can be %NULL to record
* unbounded operations.
*
* Creates a recording-surface which can be used to record all drawing operations
* at the highest level (that is, the level of paint, mask, stroke, fill
* and show_text_glyphs). The recording surface can then be "replayed" against
* any target surface by using it as a source to drawing operations.
*
* The recording phase of the recording surface is careful to snapshot all
* necessary objects (paths, patterns, etc.), in order to achieve
* accurate replay.
*
* Return value: a pointer to the newly created surface. The caller
* owns the surface and should call cairo_surface_destroy() when done
* with it.
*
* Since: 1.10
**/
cairo_surface_t *
cairo_recording_surface_create (cairo_content_t content,
const cairo_rectangle_t *extents)
{
cairo_recording_surface_t *recording_surface;
cairo_status_t status;
recording_surface = malloc (sizeof (cairo_recording_surface_t));
if (unlikely (recording_surface == NULL))
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
_cairo_surface_init (&recording_surface->base,
&cairo_recording_surface_backend,
NULL, /* device */
content);
recording_surface->content = content;
recording_surface->unbounded = TRUE;
_cairo_clip_init (&recording_surface->clip);
/* unbounded -> 'infinite' extents */
if (extents != NULL) {
recording_surface->extents_pixels = *extents;
/* XXX check for overflow */
recording_surface->extents.x = floor (extents->x);
recording_surface->extents.y = floor (extents->y);
recording_surface->extents.width = ceil (extents->x + extents->width) - recording_surface->extents.x;
recording_surface->extents.height = ceil (extents->y + extents->height) - recording_surface->extents.y;
status = _cairo_clip_rectangle (&recording_surface->clip,
&recording_surface->extents);
if (unlikely (status)) {
free (recording_surface);
return _cairo_surface_create_in_error (status);
}
recording_surface->unbounded = FALSE;
}
_cairo_array_init (&recording_surface->commands, sizeof (cairo_command_t *));
recording_surface->replay_start_idx = 0;
recording_surface->base.is_clear = TRUE;
return &recording_surface->base;
}
/* XXX The integer width,height here should be doubles and all uses updated */
cairo_surface_t *
_cairo_paginated_surface_create (cairo_surface_t *target,
cairo_content_t content,
int width,
int height,
const cairo_paginated_surface_backend_t *backend)
{
cairo_paginated_surface_t *surface;
cairo_status_t status;
surface = malloc (sizeof (cairo_paginated_surface_t));
if (surface == NULL) {
status = _cairo_error (CAIRO_STATUS_NO_MEMORY);
goto FAIL;
}
_cairo_surface_init (&surface->base, &cairo_paginated_surface_backend,
content);
/* Override surface->base.type with target's type so we don't leak
* evidence of the paginated wrapper out to the user. */
surface->base.type = cairo_surface_get_type (target);
surface->target = cairo_surface_reference (target);
surface->content = content;
surface->width = width;
surface->height = height;
surface->backend = backend;
surface->meta = _cairo_meta_surface_create (content, width, height);
status = cairo_surface_status (surface->meta);
if (status)
goto FAIL_CLEANUP_SURFACE;
surface->page_num = 1;
surface->page_is_blank = TRUE;
return &surface->base;
FAIL_CLEANUP_SURFACE:
free (surface);
FAIL:
return _cairo_surface_create_in_error (status);
}
static cairo_surface_t *
attach_proxy (cairo_surface_t *source,
cairo_surface_t *target)
{
struct proxy *proxy;
proxy = malloc (sizeof (*proxy));
if (unlikely (proxy == NULL))
return _cairo_surface_create_in_error (CAIRO_STATUS_NO_MEMORY);
_cairo_surface_init (&proxy->base, &proxy_backend, NULL, target->content, target->is_vector);
proxy->target = target;
_cairo_surface_attach_snapshot (source, &proxy->base, NULL);
return &proxy->base;
}
static cairo_surface_t *
test_compositor_surface_create (const cairo_compositor_t *compositor,
cairo_content_t content,
int width,
int height)
{
test_compositor_surface_t *surface;
pixman_image_t *pixman_image;
pixman_format_code_t pixman_format;
switch (content) {
case CAIRO_CONTENT_ALPHA:
pixman_format = PIXMAN_a8;
break;
case CAIRO_CONTENT_COLOR:
pixman_format = PIXMAN_x8r8g8b8;
break;
case CAIRO_CONTENT_COLOR_ALPHA:
pixman_format = PIXMAN_a8r8g8b8;
break;
default:
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_CONTENT));
}
pixman_image = pixman_image_create_bits (pixman_format, width, height,
NULL, 0);
if (unlikely (pixman_image == NULL))
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
surface = malloc (sizeof (test_compositor_surface_t));
if (unlikely (surface == NULL)) {
pixman_image_unref (pixman_image);
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
}
_cairo_surface_init (&surface->base.base,
&test_compositor_surface_backend,
NULL, /* device */
content,
FALSE); /* is_vector */
_cairo_image_surface_init (&surface->base, pixman_image, pixman_format);
surface->base.compositor = compositor;
return &surface->base.base;
}
cairo_surface_t *
cairo_qt_surface_create_with_qimage (cairo_format_t format,
int width,
int height)
{
cairo_qt_surface_t *qs;
qs = (cairo_qt_surface_t *) malloc (sizeof(cairo_qt_surface_t));
if (qs == NULL)
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
memset (qs, 0, sizeof(cairo_qt_surface_t));
_cairo_surface_init (&qs->base,
&cairo_qt_surface_backend,
NULL, /* device */
_cairo_content_from_format (format));
_cairo_surface_clipper_init (&qs->clipper,
_cairo_qt_surface_clipper_intersect_clip_path);
QImage *image = new QImage (width, height,
_qimage_format_from_cairo_format (format));
qs->image = image;
if (!image->isNull()) {
qs->p = new QPainter(image);
qs->supports_porter_duff = qs->p->paintEngine()->hasFeature(QPaintEngine::PorterDuff);
}
qs->image_equiv = cairo_image_surface_create_for_data (image->bits(),
format,
width, height,
image->bytesPerLine());
qs->window = QRect(0, 0, width, height);
D(fprintf(stderr, "qpainter_surface_create: qimage: [%d %d %d %d] pd:%d\n",
qs->window.x(), qs->window.y(), qs->window.width(), qs->window.height(),
qs->supports_porter_duff));
return &qs->base;
}
static cairo_skia_surface_t *
_cairo_skia_surface_create_internal (SkBitmap::Config config,
bool opaque,
unsigned char *data,
int width,
int height,
int stride)
{
cairo_skia_surface_t *surface;
cairo_format_t format;
surface = (cairo_skia_surface_t *) malloc (sizeof (cairo_skia_surface_t));
if (surface == NULL)
return (cairo_skia_surface_t *) _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
memset (surface, 0, sizeof (cairo_skia_surface_t));
format = sk_config_to_format (config, opaque);
assert (format != -1);
_cairo_surface_init (&surface->base,
&cairo_skia_surface_backend,
NULL, /* device */
_cairo_content_from_format (format));
_cairo_surface_clipper_init (&surface->clipper,
_cairo_skia_surface_clipper_intersect_clip_path);
surface->bitmap = new SkBitmap;
if (data == NULL)
stride = cairo_format_stride_for_width (format, width);
surface->bitmap->setConfig (config, width, height, stride);
surface->bitmap->setIsOpaque (opaque);
if (data != NULL)
surface->bitmap->setPixels (data);
else
surface->bitmap->allocPixels ();
surface->canvas = new SkCanvas (*surface->bitmap);
//surface->canvas->translate (SkIntToScalar (0), SkIntToScalar (height));
//surface->canvas->scale (SkIntToScalar (1), SkIntToScalar (-1));
surface->canvas->save ();
return surface;
}
cairo_surface_t *
_cairo_null_surface_create (cairo_content_t content)
{
cairo_surface_t *surface;
surface = malloc (sizeof (cairo_surface_t));
if (unlikely (surface == NULL)) {
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
}
_cairo_surface_init (surface,
&cairo_null_surface_backend,
NULL, /* device */
content,
TRUE); /* is_vector */
return surface;
}
