diff options
Diffstat (limited to 'Build/source/libs/cairo/cairo-1.12.8/src/drm/cairo-drm-bo.c')
-rw-r--r-- | Build/source/libs/cairo/cairo-1.12.8/src/drm/cairo-drm-bo.c | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/Build/source/libs/cairo/cairo-1.12.8/src/drm/cairo-drm-bo.c b/Build/source/libs/cairo/cairo-1.12.8/src/drm/cairo-drm-bo.c new file mode 100644 index 00000000000..a5b59f2c9b7 --- /dev/null +++ b/Build/source/libs/cairo/cairo-1.12.8/src/drm/cairo-drm-bo.c @@ -0,0 +1,130 @@ +/* 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. + * + */ + +#include "cairoint.h" + +#include "cairo-drm-private.h" +#include "cairo-drm-ioctl-private.h" + +#include "cairo-error-private.h" + +#include <sys/ioctl.h> +#include <errno.h> + +#define ERR_DEBUG(x) x + +struct drm_gem_close { + /** Handle of the object to be closed. */ + uint32_t handle; + uint32_t pad; +}; + +struct drm_gem_flink { + /** Handle for the object being named */ + uint32_t handle; + + /** Returned global name */ + uint32_t name; +}; + +struct drm_gem_open { + /** Name of object being opened */ + uint32_t name; + + /** Returned handle for the object */ + uint32_t handle; + + /** Returned size of the object */ + uint64_t size; +}; + +#define DRM_IOCTL_GEM_CLOSE DRM_IOW (0x09, struct drm_gem_close) +#define DRM_IOCTL_GEM_FLINK DRM_IOWR(0x0a, struct drm_gem_flink) +#define DRM_IOCTL_GEM_OPEN DRM_IOWR(0x0b, struct drm_gem_open) + +cairo_status_t +_cairo_drm_bo_open_for_name (const cairo_drm_device_t *dev, + cairo_drm_bo_t *bo, + uint32_t name) +{ + struct drm_gem_open open; + int ret; + + open.name = name; + open.handle = 0; + open.size = 0; + do { + ret = ioctl (dev->fd, DRM_IOCTL_GEM_OPEN, &open); + } while (ret == -1 && errno == EINTR); + if (ret == -1) { + ERR_DEBUG((fprintf (stderr, "Failed to open bo for name %d: %s\n", + name, strerror (errno)))); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + bo->name = name; + bo->size = open.size; + bo->handle = open.handle; + + return CAIRO_STATUS_SUCCESS; +} + +cairo_status_t +_cairo_drm_bo_flink (const cairo_drm_device_t *dev, + cairo_drm_bo_t *bo) +{ + struct drm_gem_flink flink; + int ret; + + memset (&flink, 0, sizeof (flink)); + flink.handle = bo->handle; + ret = ioctl (dev->fd, DRM_IOCTL_GEM_FLINK, &flink); + if (ret == -1) { + ERR_DEBUG((fprintf (stderr, "Failed to flink bo: %s\n", + strerror (errno)))); + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + } + + bo->name = flink.name; + + return CAIRO_STATUS_SUCCESS; +} + +void +_cairo_drm_bo_close (const cairo_drm_device_t *dev, + cairo_drm_bo_t *bo) +{ + struct drm_gem_close close; + int ret; + + close.handle = bo->handle; + do { + ret = ioctl (dev->fd, DRM_IOCTL_GEM_CLOSE, &close); + } while (ret == -1 && errno == EINTR); +} |