1 files changed, 82 insertions, 0 deletions
diff --git a/converter/other/winicon.h b/converter/other/winicon.h
new file mode 100644
index 00000000..9ede01f5
--- /dev/null
+++ b/converter/other/winicon.h
@@ -0,0 +1,82 @@
+#include "pm_c_util.h"
+
+#define ICONDIR_TYPE_ICO (1)
+
+/*  windows icon structures  */
+struct IconDirEntry {
+    uint16_t width;               /* image width in pixels 0 == 256 */
+    uint16_t height;              /* image height in pixels 0 == 256 */
+    uint8_t  color_count;         /* 0 if bits_per_pixel >= 8 */
+    uint8_t  zero;                /* 0 */
+    uint16_t color_planes;        /* 1 */
+    uint16_t bits_per_pixel;      /* allowed values: 1, 4, 8, 16 or 32 (1) */
+    uint32_t size;                /* size of image */
+    uint32_t offset;              /* file offset of image */
+
+    uint16_t index;               /* extra field (not in file) */
+};
+
+/*  (1) This is from
+ *  http://blogs.msdn.com/b/oldnewthing/archive/2010/10/19/10077610.aspx.
+ *
+ *  However, the bpp value in the icon directory is used as a hint for
+ *  image selection only.  It seems to be legal to set this value to
+ *  zero, and e.g. in SHELL32.DLL of Win98SE, there are many 8bpp
+ *  images described as 24 bit images in the icon directory.
+ *
+ *  The bpp value of image 1 in icon 150 in SHELL32.DLL of WinXP is 24
+ *  (in header and BMP).  This may be a bug, as the 32 x 32 x 8 image
+ *  is missing, but it shows the Windows icon rendering engine is able
+ *  to cope with 24 bit images).
+ *
+ *  16bpp icons are at least rare in the wild.
+ */
+struct IconDir {
+    uint16_t zero;                /* 0 */
+    uint16_t type;                /* 1 */
+    uint16_t count;               /* number of images in icon */
+
+    unsigned int entriesAllocCt;     /* # of allocated slots in 'entries'*/
+    struct IconDirEntry * entries;   /* one entry for each image */
+};
+
+/*  BMP image structures  */
+
+struct BitmapInfoHeader {
+    uint32_t header_size;         /* >= 40 */
+    int32_t  bm_width;
+    int32_t  bm_height;
+    uint16_t color_planes;
+    uint16_t bits_per_pixel;
+    uint32_t compression_method;
+    uint32_t image_size;
+    int32_t  horizontal_resolution; /* pixels per meter (!) */
+    int32_t  vertical_resolution;   /* pixels per meter (!) */
+    uint32_t colors_in_palette;
+    uint32_t important_colors;
+
+    bool top_down;                /* extra field (not in file) */
+
+};
+
+typedef enum {
+    BI_RGB       = 0,
+    BI_BITFIELDS = 3
+
+} BiCompression;
+
+/*  PNG image structures  */
+#define PNG_HEADER { 0x89, 'P', 'N', 'G', '\r', '\n', 0x1A /* ^Z */, '\n' }
+
+struct PngIhdr {
+    uint32_t length;              /* 13 */
+    uint32_t signature;           /* "IHDR" */
+    uint32_t width;               /* image width in pixels */
+    uint32_t height;              /* image height in pixels */
+    uint8_t  bit_depth;           /* depth per channel */
+    uint8_t  color_type;          /* recognized values: 0, 2, 3, 4 and 6 */
+    uint8_t  compression;
+    uint8_t  filter;
+    uint8_t  interlace;
+    uint32_t crc;
+};