From dd7595a3475407a7fa96a97393bae8c5220e8762 Mon Sep 17 00:00:00 2001
From: David Walter Seikel
Date: Wed, 4 Jan 2012 18:41:13 +1000
Subject: Add the base Enlightenment Foundation Libraries - eina, eet, evas,
 ecore, embryo, and edje.

Note that embryo wont be used, but I'm not sure yet if you can build edje without it.
---
 .../src/modules/savers/tiff/evas_image_save_tiff.c | 139 +++++++++++++++++++++
 1 file changed, 139 insertions(+)
 create mode 100644 libraries/evas/src/modules/savers/tiff/evas_image_save_tiff.c

(limited to 'libraries/evas/src/modules/savers/tiff/evas_image_save_tiff.c')

diff --git a/libraries/evas/src/modules/savers/tiff/evas_image_save_tiff.c b/libraries/evas/src/modules/savers/tiff/evas_image_save_tiff.c
new file mode 100644
index 0000000..8148f51
--- /dev/null
+++ b/libraries/evas/src/modules/savers/tiff/evas_image_save_tiff.c
@@ -0,0 +1,139 @@
+#include "evas_common.h"
+#include "evas_private.h"
+
+#include <tiffio.h>
+
+static int evas_image_save_file_tiff(RGBA_Image *im, const char *file, const char *key, int quality, int compress);
+
+static Evas_Image_Save_Func evas_image_save_tiff_func =
+{
+   evas_image_save_file_tiff
+};
+
+static int
+save_image_tiff(RGBA_Image *im, const char *file, int compress __UNUSED__, int interlace __UNUSED__)
+{
+   TIFF               *tif = NULL;
+   uint8              *buf = NULL;
+   DATA32              pixel;
+   DATA32             *data;
+   uint32              x, y;
+   uint8               r, g, b, a = 0;
+   int                 i = 0;
+   int                 has_alpha;
+
+   if (!im || !im->image.data || !file)
+      return 0;
+
+   has_alpha = im->cache_entry.flags.alpha;
+   data = im->image.data;
+
+   tif = TIFFOpen(file, "w");
+   if (!tif)
+      return 0;
+
+   /* None of the TIFFSetFields are checked for errors, but since they */
+   /* shouldn't fail, this shouldn't be a problem */
+
+   TIFFSetField(tif, TIFFTAG_IMAGELENGTH, im->cache_entry.h);
+   TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, im->cache_entry.w);
+   TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB);
+   TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
+   TIFFSetField(tif, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
+   TIFFSetField(tif, TIFFTAG_RESOLUTIONUNIT, RESUNIT_NONE);
+
+   /* By default uses patent-free use COMPRESSION_DEFLATE,
+    * another lossless compression technique */
+   TIFFSetField(tif, TIFFTAG_COMPRESSION, COMPRESSION_DEFLATE);
+   
+   if (has_alpha)
+     {
+        uint16 extras[] = { EXTRASAMPLE_ASSOCALPHA };
+        TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 4);
+        TIFFSetField(tif, TIFFTAG_EXTRASAMPLES, 1, extras);
+     }
+   else
+     {
+        TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 3);
+     }
+
+   TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, 8);
+   TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, TIFFDefaultStripSize(tif, 0));
+
+   buf = (uint8 *) _TIFFmalloc(TIFFScanlineSize(tif));
+   if (!buf)
+     {
+        TIFFClose(tif);
+        return 0;
+     }
+
+   for (y = 0; y < im->cache_entry.h; y++)
+     {
+        i = 0;
+        for (x = 0; x < im->cache_entry.w; x++)
+          {
+             pixel = data[(y * im->cache_entry.w) + x];
+
+             r = (pixel >> 16) & 0xff;
+             g = (pixel >> 8) & 0xff;
+             b = pixel & 0xff;
+             if (has_alpha)
+                a = (pixel >> 24) & 0xff;
+
+             /* This might be endian dependent */
+             buf[i++] = r;
+             buf[i++] = g;
+             buf[i++] = b;
+             if (has_alpha)
+                buf[i++] = a;
+          }
+
+        if (!TIFFWriteScanline(tif, buf, y, 0))
+          {
+             _TIFFfree(buf);
+             TIFFClose(tif);
+             return 0;
+          }
+     }
+
+   _TIFFfree(buf);
+   TIFFClose(tif);
+
+   return 1;
+}
+
+static int evas_image_save_file_tiff(RGBA_Image *im, const char *file, const char *key __UNUSED__, int quality __UNUSED__, int compress)
+{
+   return save_image_tiff(im, file, compress, 0);
+}
+
+static int
+module_open(Evas_Module *em)
+{
+   if (!em) return 0;
+   em->functions = (void *)(&evas_image_save_tiff_func);
+   return 1;
+}
+
+static void
+module_close(Evas_Module *em __UNUSED__)
+{
+}
+
+static Evas_Module_Api evas_modapi =
+{
+   EVAS_MODULE_API_VERSION,
+   "tiff",
+   "none",
+   {
+     module_open,
+     module_close
+   }
+};
+
+EVAS_MODULE_DEFINE(EVAS_MODULE_TYPE_IMAGE_SAVER, image_saver, tiff);
+
+#ifndef EVAS_STATIC_BUILD_TIFF
+EVAS_EINA_MODULE_DEFINE(image_saver, tiff);
+#endif
+
-- 
cgit v1.1