Add ExtFramebuffer

Add ExtFramebuffer for cases where the buffer have been allocated
externally.

1 files changed, 35 insertions, 0 deletions

diff --git a/libkms++/extframebuffer.cpp b/libkms++/extframebuffer.cpp
new file mode 100644
index 0000000..de9d737
--- /dev/null
+++ b/libkms++/extframebuffer.cpp
@@ -0,0 +1,35 @@
+
+#include <cstring>
+#include <stdexcept>
+#include <sys/mman.h>
+#include <xf86drm.h>
+#include <xf86drmMode.h>
+
+#include "kms++.h"
+
+using namespace std;
+
+namespace kms
+{
+
+ExtFramebuffer::ExtFramebuffer(Card& card, uint32_t width, uint32_t height, uint32_t depth, uint32_t bpp, uint32_t stride, uint32_t handle)
+	:Framebuffer(card, width, height)
+{
+	uint32_t id;
+	int r = drmModeAddFB(card.fd(), width, height, depth, bpp, stride, handle, &id);
+	if (r)
+		throw invalid_argument("fob");
+	m_id = id;
+}
+
+ExtFramebuffer::~ExtFramebuffer()
+{
+	drmModeRmFB(card().fd(), id());
+}
+
+void ExtFramebuffer::print_short() const
+{
+	printf("Framebuffer %d\n", id());
+}
+
+}