windowscodecs: Add support for 32bppCMYK and 64bppCMYK formats to TIFF decoder.

dlls/windowscodecs/regsvr.c

@@ -1236,6 +1236,8 @@ static GUID const * const tiff_decode_formats[] = {
     &GUID_WICPixelFormat48bppRGB,
     &GUID_WICPixelFormat64bppRGBA,
     &GUID_WICPixelFormat64bppPRGBA,
+    &GUID_WICPixelFormat32bppCMYK,
+    &GUID_WICPixelFormat64bppCMYK,
     &GUID_WICPixelFormat128bppRGBAFloat,
     NULL
 };
@@ -2073,6 +2075,17 @@ static struct regsvr_pixelformat const pixelformat_list[] = {
         WICPixelFormatNumericRepresentationUnsignedInteger,
         0
     },
+    {   &GUID_WICPixelFormat64bppCMYK,
+        "The Wine Project",
+        "64bpp CMYK",
+        NULL, /* no version */
+        &GUID_VendorMicrosoft,
+        64, /* bitsperpixel */
+        4, /* channel count */
+        channel_masks_16bit,
+        WICPixelFormatNumericRepresentationUnsignedInteger,
+        0
+    },
     {   &GUID_WICPixelFormat128bppRGBAFloat,
         "The Wine Project",
         "128bpp RGBAFloat",

dlls/windowscodecs/tiffformat.c

@@ -505,8 +505,31 @@ static HRESULT tiff_get_decode_info(TIFF *tiff, tiff_decode_info *decode_info)
             return E_NOTIMPL;
         }
         break;
+
+    case 5: /* Separated */
+        if (samples != 4)
+        {
+            FIXME("unhandled Separated sample count %u\n", samples);
+            return E_FAIL;
+        }
+
+        decode_info->bpp = bps * samples;
+        switch(bps)
+        {
+        case 8:
+            decode_info->format = &GUID_WICPixelFormat32bppCMYK;
+            break;
+        case 16:
+            decode_info->format = &GUID_WICPixelFormat64bppCMYK;
+            break;
+
+        default:
+            WARN("unhandled Separated bit count %u\n", bps);
+            return WINCODEC_ERR_UNSUPPORTEDPIXELFORMAT;
+        }
+        break;
+
     case 4: /* Transparency mask */
-    case 5: /* CMYK */
     case 6: /* YCbCr */
     case 8: /* CIELab */
     default: