Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / ipxe / src / include / ipxe / pixbuf.h

diff --git a/qemu/roms/ipxe/src/include/ipxe/pixbuf.h b/qemu/roms/ipxe/src/include/ipxe/pixbuf.h
new file mode 100644 (file)
index 0000000..106b666
--- /dev/null
+++ b/qemu/roms/ipxe/src/include/ipxe/pixbuf.h
@@ -0,0 +1,55 @@
+#ifndef _IPXE_PIXBUF_H
+#define _IPXE_PIXBUF_H
+
+/** @file
+ *
+ * Pixel buffer
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <stddef.h>
+#include <ipxe/refcnt.h>
+#include <ipxe/uaccess.h>
+
+/** A pixel buffer */
+struct pixel_buffer {
+       /** Reference count */
+       struct refcnt refcnt;
+       /** Width */
+       unsigned int width;
+       /** Height */
+       unsigned int height;
+       /** 32-bit (8:8:8:8) xRGB pixel data, in host-endian order */
+       userptr_t data;
+       /** Total length */
+       size_t len;
+};
+
+/**
+ * Get reference to pixel buffer
+ *
+ * @v pixbuf           Pixel buffer
+ * @ret pixbuf         Pixel buffer
+ */
+static inline __attribute__ (( always_inline )) struct pixel_buffer *
+pixbuf_get ( struct pixel_buffer *pixbuf ) {
+       ref_get ( &pixbuf->refcnt );
+       return pixbuf;
+}
+
+/**
+ * Drop reference to pixel buffer
+ *
+ * @v pixbuf           Pixel buffer
+ */
+static inline __attribute__ (( always_inline )) void
+pixbuf_put ( struct pixel_buffer *pixbuf ) {
+       ref_put ( &pixbuf->refcnt );
+}
+
+extern struct pixel_buffer * alloc_pixbuf ( unsigned int width,
+                                           unsigned int height );
+
+#endif /* _IPXE_PIXBUF_H */