Add ExtFramebuffer

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

4 files changed, 58 insertions, 0 deletions

diff --git a/libkms++/decls.h b/libkms++/decls.h
index 1415f1f..f9753f2 100644
--- a/libkms++/decls.h
+++ b/libkms++/decls.h
@@ -9,6 +9,7 @@ class Crtc;
 class Encoder;
 class Framebuffer;
 class DumbFramebuffer;
+class ExtFramebuffer;
 class DrmObject;
 class Plane;
 class Property;
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());
+}
+
+}
diff --git a/libkms++/extframebuffer.h b/libkms++/extframebuffer.h
new file mode 100644
index 0000000..cc0863a
--- /dev/null
+++ b/libkms++/extframebuffer.h
@@ -0,0 +1,21 @@
+#pragma once
+
+#include "framebuffer.h"
+
+namespace kms
+{
+
+class ExtFramebuffer : public Framebuffer
+{
+public:
+	ExtFramebuffer(Card& card, uint32_t width, uint32_t height, uint32_t depth, uint32_t bpp, uint32_t stride, uint32_t handle);
+	virtual ~ExtFramebuffer();
+
+	void print_short() const;
+
+private:
+	uint32_t m_pitch;
+	uint32_t m_bpp;
+	uint32_t m_depth;
+};
+}
diff --git a/libkms++/kms++.h b/libkms++/kms++.h
index c446a9e..c518a47 100644
--- a/libkms++/kms++.h
+++ b/libkms++/kms++.h
@@ -7,6 +7,7 @@
 #include "encoder.h"
 #include "framebuffer.h"
 #include "dumbframebuffer.h"
+#include "extframebuffer.h"
 #include "plane.h"
 #include "property.h"
 #include "pipeline.h"