kmscube: Add patch for missing GBM function

Some implementations of GBM, like the one included with
libMali, do not have gbm_bo_map() nor gbm_bo_unmap().
This patch enables kmscube to work with those implementations
even if it doesn't work as great.

(From OE-Core rev: 54615151da5e8c77c803947ce5760d06c1691c58)

Signed-off-by: Daniel Díaz <daniel.diaz@linaro.org>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 118 insertions, 1 deletions

diff --git a/meta/recipes-graphics/kmscube/kmscube/detect-gst_bo_map-_unmap-and-use-it-or-avoid-it.patch b/meta/recipes-graphics/kmscube/kmscube/detect-gst_bo_map-_unmap-and-use-it-or-avoid-it.patch
new file mode 100644
index 0000000000..3605446e44
--- /dev/null
+++ b/meta/recipes-graphics/kmscube/kmscube/detect-gst_bo_map-_unmap-and-use-it-or-avoid-it.patch
@@ -0,0 +1,116 @@
+From 761bf993ca55095f46380c0238583791c1797295 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Daniel=20D=C3=ADaz?= <daniel.diaz@linaro.org>
+Date: Tue, 11 Jul 2017 14:50:37 -0500
+Subject: [PATCH kmscube] Detect gst_bo_map/_unmap and use it (or avoid it)
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Those functions are not available on libMali, thus breaking
+builds and creating havoc.
+
+Removing the specific parts of the code that deal with
+gbm_bo_map() and gbm_bo_unmap() renders the kmscube utility
+a little less useful, but still valuable.
+
+Signed-off-by: Daniel Díaz <daniel.diaz@linaro.org>
+Cc: Rob Clark <robdclark@gmail.com>
+Reviewed-by: Eric Engestrom <eric.engestrom@imgtec.com>
+
+Upstream-Status: Submitted [https://lists.freedesktop.org/archives/mesa-dev/2017-July/163020.html]
+---
+ Makefile.am   | 5 ++++-
+ configure.ac  | 3 +++
+ gst-decoder.c | 7 ++++++-
+ kmscube.c     | 4 ++++
+ 4 files changed, 17 insertions(+), 2 deletions(-)
+
+diff --git a/Makefile.am b/Makefile.am
+index a36087d..ab4adbf 100644
+--- a/Makefile.am
++++ b/Makefile.am
+@@ -43,7 +43,6 @@ kmscube_SOURCES = \
+        common.c \
+        common.h \
+        cube-smooth.c \
+-       cube-tex.c \
+        drm-atomic.c \
+        drm-common.c \
+        drm-common.h \
+@@ -59,3 +58,7 @@ kmscube_LDADD += $(GST_LIBS)
+ kmscube_CFLAGS += $(GST_CFLAGS)
+ kmscube_SOURCES += cube-video.c gst-decoder.c
+ endif
++
++if ENABLE_GBM_MAP
++kmscube_SOURCES += cube-tex.c
++endif
+diff --git a/configure.ac b/configure.ac
+index 8397f7b..c7f1f4d 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -65,5 +65,8 @@ if test "x$enable_gbm_modifiers" = xyes; then
+        AC_DEFINE(HAVE_GBM_MODIFIERS, 1, [Define if you can use GBM properties.])
+ fi
+ 
++AC_CHECK_LIB([gbm], [gbm_bo_map], [HAVE_GBM_BO_MAP=yes], [])
++AM_CONDITIONAL(ENABLE_GBM_MAP, [test "x$HAVE_GBM_BO_MAP" = "xyes"])
++
+ AC_CONFIG_FILES([Makefile])
+ AC_OUTPUT
+diff --git a/gst-decoder.c b/gst-decoder.c
+index 2d6d581..b84980e 100644
+--- a/gst-decoder.c
++++ b/gst-decoder.c
+@@ -332,6 +332,7 @@ set_last_frame(struct decoder *dec, EGLImage frame, GstSample *samp)
+        dec->last_samp = samp;
+ }
+ 
++#if HAVE_GBM_BO_MAP
+ // TODO this could probably be a helper re-used by cube-tex:
+ static int
+ buf_to_fd(const struct gbm *gbm, int size, void *ptr)
+@@ -357,6 +358,7 @@ buf_to_fd(const struct gbm *gbm, int size, void *ptr)
+ 
+        return fd;
+ }
++#endif
+ 
+ static EGLImage
+ buffer_to_image(struct decoder *dec, GstBuffer *buf)
+@@ -410,12 +412,15 @@ buffer_to_image(struct decoder *dec, GstBuffer *buf)
+ 
+        if (is_dmabuf_mem) {
+                dmabuf_fd = dup(gst_dmabuf_memory_get_fd(mem));
+-       } else {
++       }
++#if HAVE_GBM_BO_MAP
++       else {
+                GstMapInfo map_info;
+                gst_buffer_map(buf, &map_info, GST_MAP_READ);
+                dmabuf_fd = buf_to_fd(dec->gbm, map_info.size, map_info.data);
+                gst_buffer_unmap(buf, &map_info);
+        }
++#endif
+ 
+        if (dmabuf_fd < 0) {
+                GST_ERROR("could not obtain DMABUF FD");
+diff --git a/kmscube.c b/kmscube.c
+index 3a2c4dd..276dc55 100644
+--- a/kmscube.c
++++ b/kmscube.c
+@@ -142,7 +142,11 @@ int main(int argc, char *argv[])
+        else if (mode == VIDEO)
+                egl = init_cube_video(gbm, video);
+        else
++#if HAVE_GBM_BO_MAP
+                egl = init_cube_tex(gbm, mode);
++#else
++               printf("gbm_bo_map() support missing\n");
++#endif
+ 
+        if (!egl) {
+                printf("failed to initialize EGL\n");
+-- 
+2.7.4
+
diff --git a/meta/recipes-graphics/kmscube/kmscube_git.bb b/meta/recipes-graphics/kmscube/kmscube_git.bb
index 4265f8a8dc..5b64ed6438 100644
--- a/meta/recipes-graphics/kmscube/kmscube_git.bb
+++ b/meta/recipes-graphics/kmscube/kmscube_git.bb
@@ -7,7 +7,8 @@ DEPENDS = "virtual/libgles2 virtual/egl libdrm gstreamer1.0 gstreamer1.0-plugins
 LIC_FILES_CHKSUM = "file://kmscube.c;beginline=1;endline=23;md5=8b309d4ee67b7315ff7381270dd631fb"
 
 SRCREV = "0d8de4ce3a03f36af1817f9b0586d132ad2c5d2e"
-SRC_URI = "git://anongit.freedesktop.org/mesa/kmscube;branch=master;protocol=git"
+SRC_URI = "git://anongit.freedesktop.org/mesa/kmscube;branch=master;protocol=git \
+    file://detect-gst_bo_map-_unmap-and-use-it-or-avoid-it.patch"
 UPSTREAM_CHECK_COMMITS = "1"
 
 S = "${WORKDIR}/git"