Add qemu 2.4.0

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

diff --git a/qemu/roms/ipxe/src/include/ipxe/pnm.h b/qemu/roms/ipxe/src/include/ipxe/pnm.h
new file mode 100644 (file)
index 0000000..536c14d
--- /dev/null
+++ b/qemu/roms/ipxe/src/include/ipxe/pnm.h
@@ -0,0 +1,86 @@
+#ifndef _IPXE_PNM_H
+#define _IPXE_PNM_H
+
+/** @file
+ *
+ * Portable anymap format (PNM)
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <stdint.h>
+#include <ipxe/uaccess.h>
+#include <ipxe/image.h>
+
+/** PNM signature */
+struct pnm_signature {
+       /** Magic byte ('P') */
+       char magic;
+       /** PNM type */
+       char type;
+       /** Whitespace */
+       char space;
+} __attribute__ (( packed ));
+
+/** PNM magic byte */
+#define PNM_MAGIC 'P'
+
+/** PNM context */
+struct pnm_context {
+       /** PNM type */
+       struct pnm_type *type;
+       /** Current byte offset */
+       size_t offset;
+       /** Maximum length of ASCII values */
+       size_t ascii_len;
+       /** Maximum pixel value */
+       unsigned int max;
+};
+
+/** Default maximum length of ASCII values */
+#define PNM_ASCII_LEN 16
+
+/** PNM type */
+struct pnm_type {
+       /** PNM type */
+       char type;
+       /** Number of scalar values per pixel */
+       uint8_t depth;
+       /** Number of pixels per composite value */
+       uint8_t packing;
+       /** Flags */
+       uint8_t flags;
+       /** Extract scalar value
+        *
+        * @v image             PNM image
+        * @v pnm               PNM context
+        * @ret value           Value, or negative error
+        */
+       int ( * scalar ) ( struct image *image, struct pnm_context *pnm );
+       /** Convert composite value to 24-bit RGB
+        *
+        * @v composite         Composite value
+        * @v index             Pixel index within this composite value
+        * @ret rgb             24-bit RGB value
+        */
+       uint32_t ( * rgb ) ( uint32_t composite, unsigned int index );
+};
+
+/** PNM flags */
+enum pnm_flags {
+       /** Bitmap format
+        *
+        * If set, this flag indicates that:
+        *
+        * - the maximum scalar value is predefined as being equal to
+        *   (2^packing-1), and is not present within the file, and
+        *
+        * - the maximum length of ASCII values is 1.
+        */
+       PNM_BITMAP = 0x01,
+};
+
+extern struct image_type pnm_image_type __image_type ( PROBE_NORMAL );
+
+#endif /* _IPXE_PNM_H */