Jason,
>From my point of view wl_drm isn't link to Mesa, it is only about
exchange buffers by using a file descriptor and, for example, doesn't
rely on EGL.
I understand that other graphic stacks could have defined their own
way to for zero-copy (and so other protocols).
I don't aim to make gstreamer wayland sink works for all of them but
at least with wl_drm protocol which is quite generic.
Since dmabuf has been adopted in kernel we have the opportunity to
rationalize also some code in userland and for that we need a common
wayland protocol.
Move wl_drm into wayland-core make it more easily accessible for all
software even for those who don't use Mesa.
Benjamin
PS: I have an updated version of my patch for latest wayland
2013/11/27 Jasper St. Pierre <jstpie...@mecheye.net>:
> Wasn't EGLStreams supposed to solve the use case of passing hardware buffers
> around in a standard way?
>
>
> On Wed, Nov 27, 2013 at 1:22 PM, Jason Ekstrand <ja...@jlekstrand.net>
> wrote:
>>
>>
>> On Nov 27, 2013 10:53 AM, "Benjamin Gaignard"
>> <benjamin.gaign...@linaro.org> wrote:
>> >
>> > Hi all,
>> >
>> > I'm working for Linaro on enabling a zero copy path in GStreamer by
>> > using dmabuf.
>> > To make this possible I have patched gst wayland sink to use wayland
>> > drm protocol: https://bugzilla.gnome.org/show_bug.cgi?id=711155
>> >
>> > Today wayland drm protocol is limited to Mesa so I have decided to
>> > move it into wayland-core.
>> > My hardware doesn't have gpu support yet so I have patched weston
>> > (pixman) to allow usage of wl_drm buffers.
>> > With this I able to share/use a buffer allocated by DRM in gstreamer
>> > pipeline even if I don't have gpu and EGL.
>> >
>> > What do you think about make wayland drm protocol available like this ?
>>
>> Benjamin,
>>
>> The problem here is that wl_drm is really a mesa extension. Well, more of
>> an open-source linux graphics stack extension. The point is that there are
>> other graphics stacks: Rhaspberry Pi, libhybris, other proprietary stacks,
>> etc. and each of these graphics stacks has its own extension for passing
>> hardware buffers around. This means that if you want your GStreamer sink to
>> work on these other stacks with zero-copy, you will have to talk their
>> protocols. Because wl_drm isn't global to all of wayland, it probably
>> shouldn't go into the wayland core.
>>
>> This does not mean, however, that wl_drm can't be exposed in a more
>> sensible way. As of 1.3, we are now exporting wayland.xml to
>> /usr/share/wayland and we can put other extensions there as well. We could
>> have, for instance, a /usr/share/mesa.xml file that provides the mesa
>> extensions. Then projects wanting to talk directly to mesa can generate the
>> header and C files from the system-installed xml file. This would solve the
>> problem of keeping everything in sync.
>>
>> One last note (this one's been bugging me for a while). If we are going
>> to export wl_drm in some way, we should probably rename it to something like
>> mesa_drm. We really need to get out of the habit of using the wl_ namespace
>> for everything that talks the wayland protocol. If we don't alter the
>> details of wl_drm in the rename, it shouldn't be too hard to move everyone
>> over from wl_drm to mesa_drm.
>>
>> Hope that's sensible/helpful.
>> --Jason Ekstrand
>>
>>
>> _______________________________________________
>> wayland-devel mailing list
>> wayland-devel@lists.freedesktop.org
>> http://lists.freedesktop.org/mailman/listinfo/wayland-devel
>>
>
>
>
> --
> Jasper
--
Benjamin Gaignard
Graphic Working Group
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
From fe24018437529affead57dcdf1d9425f11f2c6dd Mon Sep 17 00:00:00 2001
From: Benjamin Gaignard <benjamin.gaign...@linaro.org>
Date: Thu, 28 Nov 2013 09:55:38 +0100
Subject: [PATCH] Move wayland-drm protocol from mesa to wayland-core.
Add WL_EXPORT to function declaration.
Add {get/put}_data callback to get access to memory.
Signed-off-by: Benjamin Gaignard <benjamin.gaign...@linaro.org>
---
protocol/Makefile.am | 6 +-
protocol/wayland-drm.xml | 182 ++++++++++++++++++++++
src/Makefile.am | 11 +-
src/wayland-drm.c | 377 ++++++++++++++++++++++++++++++++++++++++++++++
src/wayland-drm.h | 131 ++++++++++++++++
5 files changed, 703 insertions(+), 4 deletions(-)
create mode 100644 protocol/wayland-drm.xml
create mode 100644 src/wayland-drm.c
create mode 100644 src/wayland-drm.h
diff --git a/protocol/Makefile.am b/protocol/Makefile.am
index e8b6290..836e8dd 100644
--- a/protocol/Makefile.am
+++ b/protocol/Makefile.am
@@ -1,4 +1,4 @@
-dist_pkgdata_DATA = wayland.xml wayland.dtd
+dist_pkgdata_DATA = wayland.xml wayland-drm.xml wayland.dtd
if HAVE_XMLLINT
.PHONY: validate
@@ -6,9 +6,9 @@ if HAVE_XMLLINT
.%.xml.valid: %.xml
$(AM_V_GEN)$(XMLLINT) --noout --dtdvalid $(srcdir)/wayland.dtd $^ > $@
-validate: .wayland.xml.valid
+validate: .wayland.xml.valid .wayland-drm.xml.valid
all-local: validate
-CLEANFILES = .wayland.xml.valid
+CLEANFILES = .wayland.xml.valid .wayland-drm.xml.valid
endif
diff --git a/protocol/wayland-drm.xml b/protocol/wayland-drm.xml
new file mode 100644
index 0000000..8a3ad69
--- /dev/null
+++ b/protocol/wayland-drm.xml
@@ -0,0 +1,182 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<protocol name="drm">
+
+ <copyright>
+ Copyright © 2008-2011 Kristian Høgsberg
+ Copyright © 2010-2011 Intel Corporation
+
+ Permission to use, copy, modify, distribute, and sell this
+ software and its documentation for any purpose is hereby granted
+ without fee, provided that\n the above copyright notice appear in
+ all copies and that both that copyright notice and this permission
+ notice appear in supporting documentation, and that the name of
+ the copyright holders not be used in advertising or publicity
+ pertaining to distribution of the software without specific,
+ written prior permission. The copyright holders make no
+ representations about the suitability of this software for any
+ purpose. It is provided "as is" without express or implied
+ warranty.
+
+ THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
+ SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
+ AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
+ THIS SOFTWARE.
+ </copyright>
+
+ <!-- drm support. This object is created by the server and published
+ using the display's global event. -->
+ <interface name="wl_drm" version="2">
+ <enum name="error">
+ <entry name="authenticate_fail" value="0"/>
+ <entry name="invalid_format" value="1"/>
+ <entry name="invalid_name" value="2"/>
+ </enum>
+
+ <enum name="format">
+ <!-- The drm format codes match the #defines in drm_fourcc.h.
+ The formats actually supported by the compositor will be
+ reported by the format event. -->
+ <entry name="c8" value="0x20203843"/>
+ <entry name="rgb332" value="0x38424752"/>
+ <entry name="bgr233" value="0x38524742"/>
+ <entry name="xrgb4444" value="0x32315258"/>
+ <entry name="xbgr4444" value="0x32314258"/>
+ <entry name="rgbx4444" value="0x32315852"/>
+ <entry name="bgrx4444" value="0x32315842"/>
+ <entry name="argb4444" value="0x32315241"/>
+ <entry name="abgr4444" value="0x32314241"/>
+ <entry name="rgba4444" value="0x32314152"/>
+ <entry name="bgra4444" value="0x32314142"/>
+ <entry name="xrgb1555" value="0x35315258"/>
+ <entry name="xbgr1555" value="0x35314258"/>
+ <entry name="rgbx5551" value="0x35315852"/>
+ <entry name="bgrx5551" value="0x35315842"/>
+ <entry name="argb1555" value="0x35315241"/>
+ <entry name="abgr1555" value="0x35314241"/>
+ <entry name="rgba5551" value="0x35314152"/>
+ <entry name="bgra5551" value="0x35314142"/>
+ <entry name="rgb565" value="0x36314752"/>
+ <entry name="bgr565" value="0x36314742"/>
+ <entry name="rgb888" value="0x34324752"/>
+ <entry name="bgr888" value="0x34324742"/>
+ <entry name="xrgb8888" value="0x34325258"/>
+ <entry name="xbgr8888" value="0x34324258"/>
+ <entry name="rgbx8888" value="0x34325852"/>
+ <entry name="bgrx8888" value="0x34325842"/>
+ <entry name="argb8888" value="0x34325241"/>
+ <entry name="abgr8888" value="0x34324241"/>
+ <entry name="rgba8888" value="0x34324152"/>
+ <entry name="bgra8888" value="0x34324142"/>
+ <entry name="xrgb2101010" value="0x30335258"/>
+ <entry name="xbgr2101010" value="0x30334258"/>
+ <entry name="rgbx1010102" value="0x30335852"/>
+ <entry name="bgrx1010102" value="0x30335842"/>
+ <entry name="argb2101010" value="0x30335241"/>
+ <entry name="abgr2101010" value="0x30334241"/>
+ <entry name="rgba1010102" value="0x30334152"/>
+ <entry name="bgra1010102" value="0x30334142"/>
+ <entry name="yuyv" value="0x56595559"/>
+ <entry name="yvyu" value="0x55595659"/>
+ <entry name="uyvy" value="0x59565955"/>
+ <entry name="vyuy" value="0x59555956"/>
+ <entry name="ayuv" value="0x56555941"/>
+ <entry name="nv12" value="0x3231564e"/>
+ <entry name="nv21" value="0x3132564e"/>
+ <entry name="nv16" value="0x3631564e"/>
+ <entry name="nv61" value="0x3136564e"/>
+ <entry name="yuv410" value="0x39565559"/>
+ <entry name="yvu410" value="0x39555659"/>
+ <entry name="yuv411" value="0x31315559"/>
+ <entry name="yvu411" value="0x31315659"/>
+ <entry name="yuv420" value="0x32315559"/>
+ <entry name="yvu420" value="0x32315659"/>
+ <entry name="yuv422" value="0x36315559"/>
+ <entry name="yvu422" value="0x36315659"/>
+ <entry name="yuv444" value="0x34325559"/>
+ <entry name="yvu444" value="0x34325659"/>
+ </enum>
+
+ <!-- Call this request with the magic received from drmGetMagic().
+ It will be passed on to the drmAuthMagic() or
+ DRIAuthConnection() call. This authentication must be
+ completed before create_buffer could be used. -->
+ <request name="authenticate">
+ <arg name="id" type="uint"/>
+ </request>
+
+ <!-- Create a wayland buffer for the named DRM buffer. The DRM
+ surface must have a name using the flink ioctl -->
+ <request name="create_buffer">
+ <arg name="id" type="new_id" interface="wl_buffer"/>
+ <arg name="name" type="uint"/>
+ <arg name="width" type="int"/>
+ <arg name="height" type="int"/>
+ <arg name="stride" type="uint"/>
+ <arg name="format" type="uint"/>
+ </request>
+
+ <!-- Create a wayland buffer for the named DRM buffer. The DRM
+ surface must have a name using the flink ioctl -->
+ <request name="create_planar_buffer">
+ <arg name="id" type="new_id" interface="wl_buffer"/>
+ <arg name="name" type="uint"/>
+ <arg name="width" type="int"/>
+ <arg name="height" type="int"/>
+ <arg name="format" type="uint"/>
+ <arg name="offset0" type="int"/>
+ <arg name="stride0" type="int"/>
+ <arg name="offset1" type="int"/>
+ <arg name="stride1" type="int"/>
+ <arg name="offset2" type="int"/>
+ <arg name="stride2" type="int"/>
+ </request>
+
+ <!-- Create a wayland buffer for the prime fd. Use for regular and planar
+ buffers. Pass 0 for offset and stride for unused planes. -->
+ <request name="create_prime_buffer" since="2">
+ <arg name="id" type="new_id" interface="wl_buffer"/>
+ <arg name="name" type="fd"/>
+ <arg name="width" type="int"/>
+ <arg name="height" type="int"/>
+ <arg name="format" type="uint"/>
+ <arg name="offset0" type="int"/>
+ <arg name="stride0" type="int"/>
+ <arg name="offset1" type="int"/>
+ <arg name="stride1" type="int"/>
+ <arg name="offset2" type="int"/>
+ <arg name="stride2" type="int"/>
+ </request>
+
+ <!-- Notification of the path of the drm device which is used by
+ the server. The client should use this device for creating
+ local buffers. Only buffers created from this device should
+ be be passed to the server using this drm object's
+ create_buffer request. -->
+ <event name="device">
+ <arg name="name" type="string"/>
+ </event>
+
+ <event name="format">
+ <arg name="format" type="uint"/>
+ </event>
+
+ <!-- Raised if the authenticate request succeeded -->
+ <event name="authenticated"/>
+
+ <enum name="capability" since="2">
+ <description summary="wl_drm capability bitmask">
+ Bitmask of capabilities.
+ </description>
+ <entry name="prime" value="1" summary="wl_drm prime available"/>
+ </enum>
+
+ <event name="capabilities">
+ <arg name="value" type="uint"/>
+ </event>
+ </interface>
+
+</protocol>
diff --git a/src/Makefile.am b/src/Makefile.am
index 15f44a5..250906c 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -4,8 +4,11 @@ noinst_LTLIBRARIES = libwayland-util.la
include_HEADERS = \
wayland-util.h \
wayland-server-protocol.h \
+ wayland-drm-server-protocol.h \
wayland-server.h \
+ wayland-drm.h \
wayland-client-protocol.h \
+ wayland-drm-client-protocol.h \
wayland-client.h \
wayland-egl.h \
wayland-version.h
@@ -22,14 +25,17 @@ libwayland_server_la_LIBADD = $(FFI_LIBS) libwayland-util.la -lrt -lm
libwayland_server_la_LDFLAGS = -version-info 1:0:1
libwayland_server_la_SOURCES = \
wayland-protocol.c \
+ wayland-drm-protocol.c \
wayland-server.c \
wayland-shm.c \
+ wayland-drm.c \
event-loop.c
libwayland_client_la_LIBADD = $(FFI_LIBS) libwayland-util.la -lrt -lm
libwayland_client_la_LDFLAGS = -version-info 2:0:2
libwayland_client_la_SOURCES = \
wayland-protocol.c \
+ wayland-drm-protocol.c \
wayland-client.c
pkgconfigdir = $(libdir)/pkgconfig
@@ -65,7 +71,10 @@ endif
BUILT_SOURCES = \
wayland-server-protocol.h \
wayland-client-protocol.h \
- wayland-protocol.c
+ wayland-protocol.c \
+ wayland-drm-server-protocol.h \
+ wayland-drm-client-protocol.h \
+ wayland-drm-protocol.c
CLEANFILES = $(BUILT_SOURCES)
DISTCLEANFILES = wayland-version.h
diff --git a/src/wayland-drm.c b/src/wayland-drm.c
new file mode 100644
index 0000000..b5ce07f
--- /dev/null
+++ b/src/wayland-drm.c
@@ -0,0 +1,377 @@
+/*
+ * Copyright © 2011 Kristian Høgsberg
+ * Copyright © 2011 Benjamin Franzke
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ * Kristian Høgsberg <k...@bitplanet.net>
+ * Benjamin Franzke <benjaminfran...@googlemail.com>
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stddef.h>
+#include <unistd.h>
+
+#include "wayland-server.h"
+#include "wayland-drm.h"
+#include "wayland-drm-server-protocol.h"
+
+#define MIN(x,y) (((x)<(y))?(x):(y))
+
+struct wl_drm {
+ struct wl_display *display;
+ struct wl_global *wl_drm_global;
+
+ void *user_data;
+ char *device_name;
+ uint32_t flags;
+
+ struct wayland_drm_callbacks *callbacks;
+
+ struct wl_buffer_interface buffer_interface;
+};
+
+static void
+destroy_buffer(struct wl_resource *resource)
+{
+ struct wl_drm_buffer *buffer = resource->data;
+ struct wl_drm *drm = buffer->drm;
+
+ drm->callbacks->release_buffer(drm->user_data, buffer);
+ free(buffer);
+}
+
+static void
+buffer_destroy(struct wl_client *client, struct wl_resource *resource)
+{
+ wl_resource_destroy(resource);
+}
+
+static void
+create_buffer(struct wl_client *client, struct wl_resource *resource,
+ uint32_t id, uint32_t name, int fd,
+ int32_t width, int32_t height,
+ uint32_t format,
+ int32_t offset0, int32_t stride0,
+ int32_t offset1, int32_t stride1,
+ int32_t offset2, int32_t stride2)
+{
+ struct wl_drm *drm = resource->data;
+ struct wl_drm_buffer *buffer;
+
+ buffer = calloc(1, sizeof *buffer);
+ if (buffer == NULL) {
+ wl_resource_post_no_memory(resource);
+ return;
+ }
+
+ buffer->drm = drm;
+ buffer->width = width;
+ buffer->height = height;
+ buffer->format = format;
+ buffer->offset[0] = offset0;
+ buffer->stride[0] = stride0;
+ buffer->offset[1] = offset1;
+ buffer->stride[1] = stride1;
+ buffer->offset[2] = offset2;
+ buffer->stride[2] = stride2;
+
+ drm->callbacks->reference_buffer(drm->user_data, name, fd, buffer);
+ if (buffer->driver_buffer == NULL) {
+ wl_resource_post_error(resource,
+ WL_DRM_ERROR_INVALID_NAME,
+ "invalid name");
+ return;
+ }
+
+ buffer->resource =
+ wl_resource_create(client, &wl_buffer_interface, 1, id);
+ if (!buffer->resource) {
+ wl_resource_post_no_memory(resource);
+ free(buffer);
+ return;
+ }
+
+ wl_resource_set_implementation(buffer->resource,
+ (void (**)(void)) &drm->buffer_interface,
+ buffer, destroy_buffer);
+}
+
+static void
+drm_create_buffer(struct wl_client *client, struct wl_resource *resource,
+ uint32_t id, uint32_t name, int32_t width, int32_t height,
+ uint32_t stride, uint32_t format)
+{
+ switch (format) {
+ case WL_DRM_FORMAT_ARGB8888:
+ case WL_DRM_FORMAT_XRGB8888:
+ case WL_DRM_FORMAT_YUYV:
+ case WL_DRM_FORMAT_RGB565:
+ break;
+ default:
+ wl_resource_post_error(resource,
+ WL_DRM_ERROR_INVALID_FORMAT,
+ "invalid format");
+ return;
+ }
+
+ create_buffer(client, resource, id,
+ name, -1, width, height, format, 0, stride, 0, 0, 0, 0);
+}
+
+static void
+drm_create_planar_buffer(struct wl_client *client,
+ struct wl_resource *resource,
+ uint32_t id, uint32_t name,
+ int32_t width, int32_t height, uint32_t format,
+ int32_t offset0, int32_t stride0,
+ int32_t offset1, int32_t stride1,
+ int32_t offset2, int32_t stride2)
+{
+ switch (format) {
+ case WL_DRM_FORMAT_YUV410:
+ case WL_DRM_FORMAT_YUV411:
+ case WL_DRM_FORMAT_YUV420:
+ case WL_DRM_FORMAT_YUV422:
+ case WL_DRM_FORMAT_YUV444:
+ case WL_DRM_FORMAT_NV12:
+ case WL_DRM_FORMAT_NV16:
+ break;
+ default:
+ wl_resource_post_error(resource,
+ WL_DRM_ERROR_INVALID_FORMAT,
+ "invalid format");
+ return;
+ }
+
+ create_buffer(client, resource, id, name, -1, width, height, format,
+ offset0, stride0, offset1, stride1, offset2, stride2);
+}
+
+static void
+drm_create_prime_buffer(struct wl_client *client,
+ struct wl_resource *resource,
+ uint32_t id, int fd,
+ int32_t width, int32_t height, uint32_t format,
+ int32_t offset0, int32_t stride0,
+ int32_t offset1, int32_t stride1,
+ int32_t offset2, int32_t stride2)
+{
+ create_buffer(client, resource, id, 0, fd, width, height, format,
+ offset0, stride0, offset1, stride1, offset2, stride2);
+ close(fd);
+}
+
+static void
+drm_authenticate(struct wl_client *client,
+ struct wl_resource *resource, uint32_t id)
+{
+ struct wl_drm *drm = resource->data;
+
+ if (drm->callbacks->authenticate(drm->user_data, id) < 0)
+ wl_resource_post_error(resource,
+ WL_DRM_ERROR_AUTHENTICATE_FAIL,
+ "authenicate failed");
+ else
+ wl_resource_post_event(resource, WL_DRM_AUTHENTICATED);
+}
+
+static const struct wl_drm_interface drm_interface = {
+ drm_authenticate,
+ drm_create_buffer,
+ drm_create_planar_buffer,
+ drm_create_prime_buffer
+};
+
+static void
+bind_drm(struct wl_client *client, void *data, uint32_t version, uint32_t id)
+{
+ struct wl_drm *drm = data;
+ struct wl_resource *resource;
+ uint32_t capabilities;
+
+ resource = wl_resource_create(client, &wl_drm_interface,
+ MIN(version, 2), id);
+ if (!resource) {
+ wl_client_post_no_memory(client);
+ return;
+ }
+
+ wl_resource_set_implementation(resource, &drm_interface, data, NULL);
+
+ wl_resource_post_event(resource, WL_DRM_DEVICE, drm->device_name);
+ wl_resource_post_event(resource, WL_DRM_FORMAT,
+ WL_DRM_FORMAT_ARGB8888);
+ wl_resource_post_event(resource, WL_DRM_FORMAT,
+ WL_DRM_FORMAT_XRGB8888);
+ wl_resource_post_event(resource, WL_DRM_FORMAT,
+ WL_DRM_FORMAT_RGB565);
+ wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV410);
+ wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV411);
+ wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV420);
+ wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV422);
+ wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV444);
+ wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_NV12);
+ wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_NV16);
+ wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUYV);
+
+ capabilities = 0;
+ if (drm->flags & WAYLAND_DRM_PRIME)
+ capabilities |= WL_DRM_CAPABILITY_PRIME;
+
+ if (version >= 2)
+ wl_resource_post_event(resource, WL_DRM_CAPABILITIES, capabilities);
+}
+
+struct wl_drm_buffer *
+wayland_drm_buffer_get(struct wl_drm *drm, struct wl_resource *resource)
+{
+ if (resource == NULL)
+ return NULL;
+
+ if (wl_resource_instance_of(resource, &wl_buffer_interface,
+ &drm->buffer_interface))
+ return wl_resource_get_user_data(resource);
+ else
+ return NULL;
+}
+
+WL_EXPORT struct wl_drm *
+wayland_drm_init(struct wl_display *display, char *device_name,
+ struct wayland_drm_callbacks *callbacks, void *user_data,
+ uint32_t flags)
+{
+ struct wl_drm *drm;
+
+ drm = malloc(sizeof *drm);
+
+ drm->display = display;
+ drm->device_name = strdup(device_name);
+ drm->callbacks = callbacks;
+ drm->user_data = user_data;
+ drm->flags = flags;
+
+ drm->buffer_interface.destroy = buffer_destroy;
+
+ drm->wl_drm_global =
+ wl_global_create(display, &wl_drm_interface, 2,
+ drm, bind_drm);
+
+ return drm;
+}
+
+WL_EXPORT void
+wayland_drm_uninit(struct wl_drm *drm)
+{
+ free(drm->device_name);
+
+ wl_global_destroy(drm->wl_drm_global);
+
+ free(drm);
+}
+
+WL_EXPORT int
+wayland_buffer_is_drm(struct wl_drm_buffer *buffer)
+{
+ struct wl_drm *drm = buffer->drm;
+
+ return wl_resource_instance_of(buffer->resource,
+ &wl_buffer_interface, &drm->buffer_interface);
+}
+
+WL_EXPORT uint32_t
+wayland_drm_buffer_get_format(struct wl_drm_buffer *buffer)
+{
+ if (!wayland_buffer_is_drm(buffer))
+ return 0;
+
+ return buffer->format;
+}
+
+WL_EXPORT void *
+wayland_drm_buffer_get_buffer(struct wl_drm_buffer *buffer)
+{
+ return buffer->driver_buffer;
+}
+
+WL_EXPORT int32_t
+wayland_drm_buffer_get_stride(struct wl_drm_buffer *buffer, int idx)
+{
+ if (!wayland_buffer_is_drm(buffer))
+ return 0;
+
+ return buffer->stride[idx];
+}
+
+WL_EXPORT void *
+wayland_drm_buffer_get_data(struct wl_drm_buffer *buffer)
+{
+ struct wl_drm *drm;
+
+ if (!wayland_buffer_is_drm(buffer))
+ return NULL;
+
+ drm = buffer->drm;
+
+ if (drm->callbacks->get_data)
+ return drm->callbacks->get_data(drm->user_data, buffer);
+
+ return NULL;
+}
+
+WL_EXPORT void
+wayland_drm_buffer_put_data(struct wl_drm_buffer *buffer)
+{
+ struct wl_drm *drm;
+
+ if (!wayland_buffer_is_drm(buffer))
+ return;
+
+ drm = buffer->drm;
+
+ if (drm->callbacks->put_data)
+ drm->callbacks->put_data(drm->user_data, buffer);
+
+ return;
+}
+
+
+WL_EXPORT int32_t
+wayland_drm_buffer_get_width(struct wl_drm_buffer *buffer)
+{
+ if (!wayland_buffer_is_drm(buffer))
+ return 0;
+
+ return buffer->width;
+}
+
+WL_EXPORT int32_t
+wayland_drm_buffer_get_height(struct wl_drm_buffer *buffer)
+{
+ if (!wayland_buffer_is_drm(buffer))
+ return 0;
+
+ return buffer->height;
+}
+
diff --git a/src/wayland-drm.h b/src/wayland-drm.h
new file mode 100644
index 0000000..e21d22b
--- /dev/null
+++ b/src/wayland-drm.h
@@ -0,0 +1,131 @@
+#ifndef WAYLAND_DRM_H
+#define WAYLAND_DRM_H
+
+#include <wayland-server.h>
+
+#ifndef WL_DRM_FORMAT_ENUM
+#define WL_DRM_FORMAT_ENUM
+enum wl_drm_format {
+ WL_DRM_FORMAT_C8 = 0x20203843,
+ WL_DRM_FORMAT_RGB332 = 0x38424752,
+ WL_DRM_FORMAT_BGR233 = 0x38524742,
+ WL_DRM_FORMAT_XRGB4444 = 0x32315258,
+ WL_DRM_FORMAT_XBGR4444 = 0x32314258,
+ WL_DRM_FORMAT_RGBX4444 = 0x32315852,
+ WL_DRM_FORMAT_BGRX4444 = 0x32315842,
+ WL_DRM_FORMAT_ARGB4444 = 0x32315241,
+ WL_DRM_FORMAT_ABGR4444 = 0x32314241,
+ WL_DRM_FORMAT_RGBA4444 = 0x32314152,
+ WL_DRM_FORMAT_BGRA4444 = 0x32314142,
+ WL_DRM_FORMAT_XRGB1555 = 0x35315258,
+ WL_DRM_FORMAT_XBGR1555 = 0x35314258,
+ WL_DRM_FORMAT_RGBX5551 = 0x35315852,
+ WL_DRM_FORMAT_BGRX5551 = 0x35315842,
+ WL_DRM_FORMAT_ARGB1555 = 0x35315241,
+ WL_DRM_FORMAT_ABGR1555 = 0x35314241,
+ WL_DRM_FORMAT_RGBA5551 = 0x35314152,
+ WL_DRM_FORMAT_BGRA5551 = 0x35314142,
+ WL_DRM_FORMAT_RGB565 = 0x36314752,
+ WL_DRM_FORMAT_BGR565 = 0x36314742,
+ WL_DRM_FORMAT_RGB888 = 0x34324752,
+ WL_DRM_FORMAT_BGR888 = 0x34324742,
+ WL_DRM_FORMAT_XRGB8888 = 0x34325258,
+ WL_DRM_FORMAT_XBGR8888 = 0x34324258,
+ WL_DRM_FORMAT_RGBX8888 = 0x34325852,
+ WL_DRM_FORMAT_BGRX8888 = 0x34325842,
+ WL_DRM_FORMAT_ARGB8888 = 0x34325241,
+ WL_DRM_FORMAT_ABGR8888 = 0x34324241,
+ WL_DRM_FORMAT_RGBA8888 = 0x34324152,
+ WL_DRM_FORMAT_BGRA8888 = 0x34324142,
+ WL_DRM_FORMAT_XRGB2101010 = 0x30335258,
+ WL_DRM_FORMAT_XBGR2101010 = 0x30334258,
+ WL_DRM_FORMAT_RGBX1010102 = 0x30335852,
+ WL_DRM_FORMAT_BGRX1010102 = 0x30335842,
+ WL_DRM_FORMAT_ARGB2101010 = 0x30335241,
+ WL_DRM_FORMAT_ABGR2101010 = 0x30334241,
+ WL_DRM_FORMAT_RGBA1010102 = 0x30334152,
+ WL_DRM_FORMAT_BGRA1010102 = 0x30334142,
+ WL_DRM_FORMAT_YUYV = 0x56595559,
+ WL_DRM_FORMAT_YVYU = 0x55595659,
+ WL_DRM_FORMAT_UYVY = 0x59565955,
+ WL_DRM_FORMAT_VYUY = 0x59555956,
+ WL_DRM_FORMAT_AYUV = 0x56555941,
+ WL_DRM_FORMAT_NV12 = 0x3231564e,
+ WL_DRM_FORMAT_NV21 = 0x3132564e,
+ WL_DRM_FORMAT_NV16 = 0x3631564e,
+ WL_DRM_FORMAT_NV61 = 0x3136564e,
+ WL_DRM_FORMAT_YUV410 = 0x39565559,
+ WL_DRM_FORMAT_YVU410 = 0x39555659,
+ WL_DRM_FORMAT_YUV411 = 0x31315559,
+ WL_DRM_FORMAT_YVU411 = 0x31315659,
+ WL_DRM_FORMAT_YUV420 = 0x32315559,
+ WL_DRM_FORMAT_YVU420 = 0x32315659,
+ WL_DRM_FORMAT_YUV422 = 0x36315559,
+ WL_DRM_FORMAT_YVU422 = 0x36315659,
+ WL_DRM_FORMAT_YUV444 = 0x34325559,
+ WL_DRM_FORMAT_YVU444 = 0x34325659,
+};
+#endif /* WL_DRM_FORMAT_ENUM */
+
+struct wl_drm;
+
+struct wl_drm_buffer {
+ struct wl_resource *resource;
+ struct wl_drm *drm;
+ int32_t width, height;
+ uint32_t format;
+ const void *driver_format;
+ int32_t offset[3];
+ int32_t stride[3];
+ void *driver_buffer;
+};
+
+struct wayland_drm_callbacks {
+ int (*authenticate)(void *user_data, uint32_t id);
+
+ void (*reference_buffer)(void *user_data, uint32_t name, int fd,
+ struct wl_drm_buffer *buffer);
+
+ void (*release_buffer)(void *user_data, struct wl_drm_buffer *buffer);
+ void* (*get_data)(void *user_data, struct wl_drm_buffer *buffer);
+ void (*put_data)(void *user_data, struct wl_drm_buffer *buffer);
+};
+
+enum { WAYLAND_DRM_PRIME = 0x01 };
+
+struct wl_drm_buffer *
+wayland_drm_buffer_get(struct wl_drm *drm, struct wl_resource *resource);
+
+struct wl_drm *
+wayland_drm_init(struct wl_display *display, char *device_name,
+ struct wayland_drm_callbacks *callbacks, void *user_data,
+ uint32_t flags);
+
+void
+wayland_drm_uninit(struct wl_drm *drm);
+
+int
+wayland_buffer_is_drm(struct wl_drm_buffer *buffer);
+
+uint32_t
+wayland_drm_buffer_get_format(struct wl_drm_buffer *buffer);
+
+void *
+wayland_drm_buffer_get_buffer(struct wl_drm_buffer *buffer);
+
+int32_t
+wayland_drm_buffer_get_stride(struct wl_drm_buffer *buffer_base, int idx);
+
+void *
+wayland_drm_buffer_get_data(struct wl_drm_buffer *buffer_base);
+
+void
+wayland_drm_buffer_put_data(struct wl_drm_buffer *buffer_base);
+
+int32_t
+wayland_drm_buffer_get_width(struct wl_drm_buffer *buffer_base);
+
+int32_t
+wayland_drm_buffer_get_height(struct wl_drm_buffer *buffer_base);
+
+#endif
--
1.7.9.5
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