From e4c95910f138da1985168e86c0320b5222ce6462 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Date: Mon, 24 Jun 2013 13:20:50 +0200
Subject: live source libdrm

---
 xf86drmMode.c | 133 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 133 insertions(+)

(limited to 'xf86drmMode.c')

diff --git a/xf86drmMode.c b/xf86drmMode.c
index f603ceb2..4c5d6068 100644
--- a/xf86drmMode.c
+++ b/xf86drmMode.c
@@ -978,6 +978,139 @@ void drmModeFreePlaneResources(drmModePlaneResPtr ptr)
 	drmFree(ptr);
 }
 
+int drmModeSetSource(int fd, uint32_t source_id, uint32_t plane_id,
+		     uint32_t width, uint32_t height,
+		     uint32_t pixel_format)
+{
+	struct drm_mode_set_live_source s;
+
+	s.source_id = source_id;
+	s.plane_id = plane_id;
+	s.width = width;
+	s.height = height;
+	s.pixel_format = pixel_format;
+
+	return DRM_IOCTL(fd, DRM_IOCTL_MODE_SETSOURCE, &s);
+}
+
+drmModeSourcePtr drmModeGetSource(int fd, uint32_t source_id)
+{
+	struct drm_mode_get_live_source src;
+	uint32_t count_format_types;
+	drmModeSourcePtr r = 0;
+
+retry:
+	memset(&src, 0, sizeof(src));
+	src.source_id = source_id;
+	if (drmIoctl(fd, DRM_IOCTL_MODE_GETSOURCE, &src))
+		return 0;
+
+	count_format_types = src.count_format_types;
+
+	if (src.count_format_types) {
+		src.format_type_ptr = VOID2U64(drmMalloc(src.count_format_types *
+							 sizeof(uint32_t)));
+		if (!src.format_type_ptr)
+			goto err_allocs;
+	}
+
+	if (drmIoctl(fd, DRM_IOCTL_MODE_GETSOURCE, &src))
+		return 0;
+
+	if (count_format_types < src.count_format_types) {
+		drmFree(U642VOID(src.format_type_ptr));
+		goto retry;
+	}
+
+	if (!(r = drmMalloc(sizeof(*r))))
+		return NULL;
+
+	r->source_id = src.source_id;
+	strncpy(r->name, src.name, DRM_SOURCE_NAME_LEN);
+	r->name[DRM_SOURCE_NAME_LEN-1] = 0;
+	r->plane_id = src.plane_id;
+	r->possible_planes = src.possible_planes;
+	r->width = src.width;
+	r->height = src.height;
+	r->pixel_format = src.pixel_format;
+
+	r->count_formats = src.count_format_types;
+	r->formats = drmAllocCpy(U642VOID(src.format_type_ptr),
+				 src.count_format_types, sizeof(uint32_t));
+	if (src.count_format_types && !r->formats) {
+		drmFree(r->formats);
+		drmFree(r);
+		r = NULL;
+	}
+
+err_allocs:
+	drmFree(U642VOID(src.format_type_ptr));
+	return r;
+}
+
+void drmModeFreeSource(drmModeSourcePtr ptr)
+{
+	if (!ptr)
+		return;
+
+	drmFree(ptr->formats);
+	drmFree(ptr);
+}
+
+drmModeSourceResPtr drmModeGetSourceResources(int fd)
+{
+	struct drm_mode_get_live_source_res res, counts;
+	drmModeSourceResPtr r = 0;
+
+retry:
+	memset(&res, 0, sizeof(res));
+	if (drmIoctl(fd, DRM_IOCTL_MODE_GETSOURCERESOURCES, &res))
+		return 0;
+
+	counts = res;
+
+	if (res.count_sources) {
+		res.source_id_ptr = VOID2U64(drmMalloc(res.count_sources *
+							sizeof(uint32_t)));
+		if (!res.source_id_ptr)
+			goto err_allocs;
+	}
+
+	if (drmIoctl(fd, DRM_IOCTL_MODE_GETSOURCERESOURCES, &res))
+		goto err_allocs;
+
+	if (counts.count_sources < res.count_sources) {
+		drmFree(U642VOID(res.source_id_ptr));
+		goto retry;
+	}
+
+	if (!(r = drmMalloc(sizeof(*r))))
+		goto err_allocs;
+
+	r->count_sources = res.count_sources;
+	r->sources = drmAllocCpy(U642VOID(res.source_id_ptr),
+				  res.count_sources, sizeof(uint32_t));
+	if (res.count_sources && !r->sources) {
+		drmFree(r->sources);
+		drmFree(r);
+		r = 0;
+	}
+
+err_allocs:
+	drmFree(U642VOID(res.source_id_ptr));
+
+	return r;
+}
+
+void drmModeFreeSourceResources(drmModeSourceResPtr ptr)
+{
+	if (!ptr)
+		return;
+
+	drmFree(ptr->sources);
+	drmFree(ptr);
+}
+
 drmModeObjectPropertiesPtr drmModeObjectGetProperties(int fd,
 						      uint32_t object_id,
 						      uint32_t object_type)
-- 
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