Commit: 0afe1961cda99527fa8827cfaeece393b77b57fc - external-gbm_gralloc (git)

external/gbm_gralloc

Commit MetaInfo

• Revision: 0afe1961cda99527fa8827cfaeece393b77b57fc (tree)
• Zeit: 2019-01-14 14:16:42
• Autor: Chih-Wei Huang <cwhuang@linu...>
• Commiter: Chih-Wei Huang

Log Message

Open the DRM device of the primary framebuffer (fb0)

With the new added drmOpenByFB function in libdrm, it's easy to find
the correct DRM device of the primary framebuffer.

Signed-off-by: Chih-Wei Huang <[e-mail]>

Ändern Zusammenfassung

• modified: gralloc_gbm.cpp

Diff

--- a/gralloc_gbm.cpp
+++ b/gralloc_gbm.cpp
@@ -34,6 +34,7 @@
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <assert.h>
+#include <xf86drm.h>
 
 #include <hardware/gralloc.h>
 #include <system/graphics.h>
@@ -313,8 +314,11 @@ struct gbm_device *gbm_dev_create(bool master)
 	char path[PROPERTY_VALUE_MAX];
 	int fd;
 
-	property_get("gralloc.gbm.device", path, master ? "/dev/dri/card0" : "/dev/dri/renderD128");
-	fd = open(path, O_RDWR | O_CLOEXEC);
+	if (property_get("gralloc.gbm.device", path, NULL) > 0)
+		fd = open(path, O_RDWR | O_CLOEXEC);
+	else
+		fd = drmOpenByFB(0, master ? DRM_NODE_PRIMARY : DRM_NODE_RENDER);
+
 	if (fd < 0) {
 		ALOGE("failed to open %s", path);
 		return NULL;