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-rw-r--r--src/drm/cairo-drm-surface.c369
1 files changed, 369 insertions, 0 deletions
diff --git a/src/drm/cairo-drm-surface.c b/src/drm/cairo-drm-surface.c
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+++ b/src/drm/cairo-drm-surface.c
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+/* Cairo - a vector graphics library with display and print output
+ *
+ * Copyright © 2009 Chris Wilson
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * The Original Code is the cairo graphics library.
+ *
+ * The Initial Developer of the Original Code is Chris Wilson.
+ */
+
+#include "cairoint.h"
+
+#include "cairo-drm-private.h"
+
+#include "cairo-error-private.h"
+#include "cairo-image-surface-inline.h"
+
+void
+_cairo_drm_surface_init (cairo_drm_surface_t *surface,
+ cairo_format_t format,
+ int width, int height)
+{
+ surface->bo = NULL;
+ surface->format = format;
+ surface->width = width;
+ surface->height = height;
+ surface->stride = 0;
+
+ surface->fallback = NULL;
+ surface->map_count = 0;
+}
+
+cairo_status_t
+_cairo_drm_surface_finish (cairo_drm_surface_t *surface)
+{
+ assert (surface->fallback == NULL);
+
+ if (surface->bo != NULL)
+ cairo_drm_bo_destroy (surface->base.device, surface->bo);
+
+ return CAIRO_STATUS_SUCCESS;
+}
+
+void
+_cairo_drm_surface_get_font_options (void *abstract_surface,
+ cairo_font_options_t *options)
+{
+ _cairo_font_options_init_default (options);
+
+ cairo_font_options_set_hint_metrics (options, CAIRO_HINT_METRICS_ON);
+}
+
+cairo_bool_t
+_cairo_drm_surface_get_extents (void *abstract_surface,
+ cairo_rectangle_int_t *rectangle)
+{
+ cairo_drm_surface_t *surface = abstract_surface;
+
+ rectangle->x = 0;
+ rectangle->y = 0;
+ rectangle->width = surface->width;
+ rectangle->height = surface->height;
+
+ return TRUE;
+}
+
+cairo_surface_t *
+cairo_drm_surface_create (cairo_device_t *abstract_device,
+ cairo_format_t format,
+ int width, int height)
+{
+ cairo_drm_device_t *device = (cairo_drm_device_t *) abstract_device;
+ cairo_surface_t *surface;
+
+ if (device != NULL && device->base.status)
+ {
+ surface = _cairo_surface_create_in_error (device->base.status);
+ }
+ else if (device == NULL ||
+ device->surface.create == NULL ||
+ width == 0 || width > device->max_surface_size ||
+ height == 0 || height > device->max_surface_size)
+ {
+ surface = cairo_image_surface_create (format, width, height);
+ }
+ else if (device->base.finished)
+ {
+ surface = _cairo_surface_create_in_error (CAIRO_STATUS_SURFACE_FINISHED);
+ }
+ else
+ {
+ surface = device->surface.create (device, format, width, height);
+ if (surface->status == CAIRO_STATUS_INVALID_SIZE)
+ surface = cairo_image_surface_create (format, width, height);
+ }
+
+ return surface;
+}
+
+cairo_surface_t *
+cairo_drm_surface_create_for_name (cairo_device_t *abstract_device,
+ unsigned int name,
+ cairo_format_t format,
+ int width, int height, int stride)
+{
+ cairo_drm_device_t *device = (cairo_drm_device_t *) abstract_device;
+ cairo_surface_t *surface;
+
+ if (! CAIRO_FORMAT_VALID (format))
+ return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_FORMAT));
+
+ if (device != NULL && device->base.status)
+ {
+ surface = _cairo_surface_create_in_error (device->base.status);
+ }
+ else if (device == NULL || device->surface.create_for_name == NULL)
+ {
+ /* XXX invalid device! */
+ surface = _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_FORMAT));
+ }
+ else if (width == 0 || width > device->max_surface_size ||
+ height == 0 || height > device->max_surface_size)
+ {
+ surface = _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_SIZE));
+ }
+ else if (device->base.finished)
+ {
+ surface = _cairo_surface_create_in_error (CAIRO_STATUS_SURFACE_FINISHED);
+ }
+ else
+ {
+ surface = device->surface.create_for_name (device,
+ name, format,
+ width, height, stride);
+ }
+
+ return surface;
+}
+slim_hidden_def (cairo_drm_surface_create_for_name);
+
+cairo_surface_t *
+cairo_drm_surface_create_from_cacheable_image (cairo_device_t *abstract_device,
+ cairo_surface_t *surface)
+{
+ cairo_drm_device_t *device = (cairo_drm_device_t *) abstract_device;
+
+ if (surface->status) {
+ surface = _cairo_surface_create_in_error (surface->status);
+ } else if (device != NULL && device->base.status) {
+ surface = _cairo_surface_create_in_error (device->base.status);
+ } else if (device == NULL || device->surface.create_from_cacheable_image == NULL) {
+ /* XXX invalid device! */
+ surface = _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_FORMAT));
+ } else if (device->base.finished) {
+ surface = _cairo_surface_create_in_error (CAIRO_STATUS_SURFACE_FINISHED);
+ } else {
+ surface = device->surface.create_from_cacheable_image (device, surface);
+ }
+
+ return surface;
+}
+
+static cairo_drm_surface_t *
+_cairo_surface_as_drm (cairo_surface_t *abstract_surface)
+{
+ if (unlikely (abstract_surface->status))
+ return NULL;
+
+ if (abstract_surface->type != CAIRO_SURFACE_TYPE_DRM)
+ return NULL;
+
+ return (cairo_drm_surface_t *) abstract_surface;
+}
+
+cairo_status_t
+cairo_drm_surface_enable_scan_out (cairo_surface_t *abstract_surface)
+{
+ cairo_drm_surface_t *surface;
+ cairo_drm_device_t *device;
+
+ surface = _cairo_surface_as_drm (abstract_surface);
+ if (unlikely (surface == NULL))
+ return _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH);
+ if (unlikely (surface->base.finished))
+ return _cairo_error (CAIRO_STATUS_SURFACE_FINISHED);
+
+ device = (cairo_drm_device_t *) surface->base.device;
+ if (device->surface.enable_scan_out == NULL)
+ return CAIRO_STATUS_SUCCESS;
+
+ if (unlikely (device->base.finished))
+ return _cairo_error (CAIRO_STATUS_SURFACE_FINISHED);
+
+ return device->surface.enable_scan_out (abstract_surface);
+}
+
+unsigned int
+cairo_drm_surface_get_handle (cairo_surface_t *abstract_surface)
+{
+ cairo_drm_surface_t *surface;
+
+ surface = _cairo_surface_as_drm (abstract_surface);
+ if (surface == NULL) {
+ _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH);
+ return 0;
+ }
+
+ return surface->bo->handle;
+}
+
+cairo_int_status_t
+_cairo_drm_surface_flink (void *abstract_surface)
+{
+ cairo_drm_surface_t *surface = abstract_surface;
+
+ return _cairo_drm_bo_flink ((cairo_drm_device_t *) surface->base.device,
+ surface->bo);
+}
+
+unsigned int
+cairo_drm_surface_get_name (cairo_surface_t *abstract_surface)
+{
+ cairo_drm_surface_t *surface;
+ cairo_drm_device_t *device;
+ cairo_status_t status;
+
+ surface = _cairo_surface_as_drm (abstract_surface);
+ if (surface == NULL) {
+ _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH);
+ return 0;
+ }
+
+ if (surface->bo->name)
+ return surface->bo->name;
+
+ device = (cairo_drm_device_t *) surface->base.device;
+ if (device->surface.flink == NULL)
+ return 0;
+
+ status = device->surface.flink (abstract_surface);
+ if (status) {
+ if (_cairo_status_is_error (status))
+ status = _cairo_surface_set_error (abstract_surface, status);
+
+ return 0;
+ }
+
+ return surface->bo->name;
+}
+
+cairo_format_t
+cairo_drm_surface_get_format (cairo_surface_t *abstract_surface)
+{
+ cairo_drm_surface_t *surface;
+
+ surface = _cairo_surface_as_drm (abstract_surface);
+ if (surface == NULL)
+ return cairo_image_surface_get_format (abstract_surface);
+
+ return surface->format;
+}
+
+int
+cairo_drm_surface_get_width (cairo_surface_t *abstract_surface)
+{
+ cairo_drm_surface_t *surface;
+
+ surface = _cairo_surface_as_drm (abstract_surface);
+ if (surface == NULL)
+ return cairo_image_surface_get_width (abstract_surface);
+
+ return surface->width;
+}
+
+int
+cairo_drm_surface_get_height (cairo_surface_t *abstract_surface)
+{
+ cairo_drm_surface_t *surface;
+
+ surface = _cairo_surface_as_drm (abstract_surface);
+ if (surface == NULL)
+ return cairo_image_surface_get_height (abstract_surface);
+
+ return surface->height;
+}
+
+int
+cairo_drm_surface_get_stride (cairo_surface_t *abstract_surface)
+{
+ cairo_drm_surface_t *surface;
+
+ surface = _cairo_surface_as_drm (abstract_surface);
+ if (surface == NULL)
+ return cairo_image_surface_get_stride (abstract_surface);
+
+ return surface->stride;
+}
+
+/* XXX drm or general surface layer? naming? */
+cairo_surface_t *
+cairo_drm_surface_map_to_image (cairo_surface_t *abstract_surface)
+{
+ cairo_drm_surface_t *surface;
+ cairo_drm_device_t *device;
+ cairo_status_t status;
+
+ if (unlikely (abstract_surface->status))
+ return _cairo_surface_create_in_error (abstract_surface->status);
+
+ surface = _cairo_surface_as_drm (abstract_surface);
+ if (surface == NULL) {
+ if (_cairo_surface_is_image (abstract_surface))
+ return cairo_surface_reference (abstract_surface);
+
+ status = _cairo_surface_set_error (abstract_surface,
+ CAIRO_STATUS_SURFACE_TYPE_MISMATCH);
+ return _cairo_surface_create_in_error (status);
+ }
+
+ surface->map_count++;
+ device = (cairo_drm_device_t *) surface->base.device;
+ return cairo_surface_reference (device->surface.map_to_image (surface));
+}
+
+void
+cairo_drm_surface_unmap (cairo_surface_t *abstract_surface,
+ cairo_surface_t *image)
+{
+ cairo_drm_surface_t *surface;
+
+ surface = _cairo_surface_as_drm (abstract_surface);
+ if (surface == NULL) {
+ if (_cairo_surface_is_image (abstract_surface))
+ cairo_surface_destroy (image);
+ else
+ _cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH);
+ return;
+ }
+
+ /* XXX assert image belongs to drm */
+ //assert (image == drm->fallback);
+ cairo_surface_destroy (image);
+
+ assert (surface->map_count > 0);
+ if (--surface->map_count == 0)
+ cairo_surface_flush (&surface->base);
+}