Add DumbFramebuffer

Move the current Framebuffer to DumbFramebuffer, and make a simple
Framebuffer as its super class.

1 files changed, 39 insertions, 0 deletions

diff --git a/libkms++/dumbframebuffer.h b/libkms++/dumbframebuffer.h
new file mode 100644
index 0000000..e7cafb6
--- /dev/null
+++ b/libkms++/dumbframebuffer.h
@@ -0,0 +1,39 @@
+#pragma once
+
+#include "framebuffer.h"
+
+namespace kms
+{
+class DumbFramebuffer : public Framebuffer
+{
+public:
+	DumbFramebuffer(Card& card, uint32_t width, uint32_t height, const char* fourcc);
+	virtual ~DumbFramebuffer();
+
+	void print_short() const;
+
+	uint32_t format() const { return m_format; }
+
+	uint8_t* map(unsigned plane) const { return m_planes[plane].map; }
+	uint32_t stride(unsigned plane) const { return m_planes[plane].stride; }
+	uint32_t size(unsigned plane) const { return m_planes[plane].size; }
+
+	void clear();
+
+private:
+	struct FramebufferPlane {
+		uint32_t handle;
+		uint32_t size;
+		uint32_t stride;
+		uint8_t *map;
+	};
+
+	void Create(uint32_t width, uint32_t height, uint32_t format);
+	void Destroy();
+
+	unsigned m_num_planes;
+	struct FramebufferPlane m_planes[4];
+
+	uint32_t m_format;
+};
+}