add single-pixel-buffer-v1 staging protocol

Change-Id: I801c5b1e2b9365194e3022e6b689315f6b773519

4 files changed, 106 insertions, 1 deletions

diff --git a/Makefile.am b/Makefile.am
index 107e4ff..58f6e76 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -29,6 +29,14 @@ protocol/unstable/%-server-protocol.h : $(top_srcdir)/protocol/unstable/*/%.xml
 protocol/unstable/%-client-protocol.h : $(top_srcdir)/protocol/unstable/*/%.xml
 	$(wayland_scanner) client-header < $< > $@
 
+### protocol/staging/protocol.[ch]
+protocol/staging/%-protocol.c : $(top_srcdir)/protocol/staging/*/%.xml
+	$(wayland_scanner) code < $< > $@
+protocol/staging/%-server-protocol.h : $(top_srcdir)/protocol/staging/*/%.xml
+	$(wayland_scanner) server-header < $< > $@
+protocol/staging/%-client-protocol.h : $(top_srcdir)/protocol/staging/*/%.xml
+	$(wayland_scanner) client-header < $< > $@
+
 ### protocol/stable/protocol.[ch]
 protocol/stable/%-protocol.c : $(top_srcdir)/protocol/stable/*/%.xml
 	$(wayland_scanner) code < $< > $@
@@ -451,6 +459,23 @@ libwtz_shell_client_la_SOURCES = protocol/tizen/wtz-shell-protocol.c
 libwtz_shell_client_la_CFLAGS  = @WAYLAND_CLIENT_CFLAGS@
 libwtz_shell_client_la_LIBADD  = @WAYLAND_CLIENT_LIBS@
 
+### single-pixel-buffer
+protocol_LTLIBRARIES += \
+        libsingle-pixel-buffer-v1-server.la \
+        libsingle-pixel-buffer-v1-client.la
+pkgconfig_DATA += \
+        src/single-pixel-buffer-v1-server.pc \
+        src/single-pixel-buffer-v1-client.pc
+protocolinclude_HEADERS += \
+        protocol/staging/single-pixel-buffer-v1-server-protocol.h \
+        protocol/staging/single-pixel-buffer-v1-client-protocol.h
+libsingle_pixel_buffer_v1_server_la_SOURCES = protocol/staging/single-pixel-buffer-v1-protocol.c
+libsingle_pixel_buffer_v1_server_la_CFLAGS  = @WAYLAND_SERVER_CFLAGS@
+libsingle_pixel_buffer_v1_server_la_LIBADD  = @WAYLAND_SERVER_LIBS@
+libsingle_pixel_buffer_v1_client_la_SOURCES = protocol/staging/single-pixel-buffer-v1-protocol.c
+libsingle_pixel_buffer_v1_client_la_CFLAGS  = @WAYLAND_CLIENT_CFLAGS@
+libsingle_pixel_buffer_v1_client_la_LIBADD  = @WAYLAND_CLIENT_LIBS@
+
 ### wayland-protocols
 unstable_protocols = \
 	protocol/unstable/pointer-gestures/pointer-gestures-unstable-v1.xml \
@@ -477,6 +502,10 @@ unstable_protocols = \
 	protocol/unstable/primary-selection/primary-selection-unstable-v1.xml \
 	$(NULL)
 
+staging_protocols = \
+	protocol/staging/single-pixel-buffer/single-pixel-buffer-v1.xml \
+	$(NULL)
+
 stable_protocols = \
 	protocol/stable/presentation-time/presentation-time.xml \
 	protocol/stable/viewporter/viewporter.xml \
@@ -505,12 +534,14 @@ tizen_protocols = \
 
 nobase_dist_pkgdata_DATA = \
 	$(unstable_protocols) \
+	$(staging_protocols) \
 	$(stable_protocols) \
 	$(tizen_protocols) \
 	$(NULL)
 
 dist_noinst_DATA = \
 	$(sort $(foreach p,$(unstable_protocols),$(dir $p)README)) \
+	$(sort $(foreach p,$(staging_protocols),$(dir $p)README)) \
 	$(sort $(foreach p,$(stable_protocols),$(dir $p)README)) \
 	$(NULL)
 
@@ -518,7 +549,7 @@ pkgconfig_DATA += src/wayland-protocols.pc
 
 dist_check_SCRIPTS = tests/scan.sh
 
-TESTS = $(unstable_protocols) $(stable_protocols) $(tizen_protocols)
+TESTS = $(unstable_protocols) $(staging_protocols) $(stable_protocols) $(tizen_protocols)
 TEST_EXTENSIONS = .xml
 AM_TESTS_ENVIRONMENT = SCANNER='$(wayland_scanner)'; export SCANNER;
 XML_LOG_COMPILER = $(srcdir)/tests/scan.sh
diff --git a/packaging/wayland-extension.spec b/packaging/wayland-extension.spec
index ba29469..b09d954 100644
--- a/packaging/wayland-extension.spec
+++ b/packaging/wayland-extension.spec
@@ -147,6 +147,7 @@ make %{?_smp_mflags}
 %defattr(-,root,root)
 %_datadir/wayland-extension/protocol/tizen/*
 %_datadir/wayland-extension/protocol/stable/*
+%_datadir/wayland-extension/protocol/staging/*
 %_datadir/wayland-extension/protocol/unstable/*
 %_libdir/pkgconfig/wayland-protocols.pc
 
diff --git a/protocol/staging/single-pixel-buffer/README b/protocol/staging/single-pixel-buffer/README
new file mode 100644
index 0000000..b3ae55e
--- /dev/null
+++ b/protocol/staging/single-pixel-buffer/README
@@ -0,0 +1,4 @@
+Single-pixel buffer protocol
+
+Maintainers:
+Simon Ser <contact@emersion.fr>
diff --git a/protocol/staging/single-pixel-buffer/single-pixel-buffer-v1.xml b/protocol/staging/single-pixel-buffer/single-pixel-buffer-v1.xml
new file mode 100644
index 0000000..b157155
--- /dev/null
+++ b/protocol/staging/single-pixel-buffer/single-pixel-buffer-v1.xml
@@ -0,0 +1,69 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<protocol name="single_pixel_buffer_v1">
+  <copyright>
+    Copyright © 2022 Simon Ser
+
+    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.
+  </copyright>
+
+  <description summary="single pixel buffer factory">
+    This protocol extension allows clients to create single-pixel buffers.
+
+    Compositors supporting this protocol extension should also support the
+    viewporter protocol extension. Clients may use viewporter to scale a
+    single-pixel buffer to a desired size.
+
+    Warning! The protocol described in this file is currently in the testing
+    phase. Backward compatible changes may be added together with the
+    corresponding interface version bump. Backward incompatible changes can
+    only be done by creating a new major version of the extension.
+  </description>
+
+  <interface name="wp_single_pixel_buffer_manager_v1" version="1">
+    <description summary="global factory for single-pixel buffers">
+      The wp_single_pixel_buffer_manager_v1 interface is a factory for
+      single-pixel buffers.
+    </description>
+
+    <request name="destroy" type="destructor">
+      <description summary="destroy the manager">
+        Destroy the wp_single_pixel_buffer_manager_v1 object.
+
+        The child objects created via this interface are unaffected.
+      </description>
+    </request>
+
+    <request name="create_u32_rgba_buffer">
+      <description summary="create a 1×1 buffer from 32-bit RGBA values">
+        Create a single-pixel buffer from four 32-bit RGBA values.
+
+        Unless specified in another protocol extension, the RGBA values use
+        pre-multiplied alpha.
+
+        The width and height of the buffer are 1.
+      </description>
+      <arg name="id" type="new_id" interface="wl_buffer"/>
+      <arg name="r" type="uint" summary="value of the buffer's red channel"/>
+      <arg name="g" type="uint" summary="value of the buffer's green channel"/>
+      <arg name="b" type="uint" summary="value of the buffer's blue channel"/>
+      <arg name="a" type="uint" summary="value of the buffer's alpha channel"/>
+    </request>
+  </interface>
+</protocol>