1 files changed, 250 insertions, 0 deletions

diff --git a/libraries/evas/src/modules/loaders/edb/evas_image_load_edb.c b/libraries/evas/src/modules/loaders/edb/evas_image_load_edb.c
new file mode 100644
index 0000000..94b121e
--- /dev/null
+++ b/libraries/evas/src/modules/loaders/edb/evas_image_load_edb.c
@@ -0,0 +1,250 @@
+#include "evas_common.h"
+#include "evas_private.h"
+
+#include <Edb.h>
+#include <zlib.h>
+
+
+#define SWAP32(x) (x) = ((((x) & 0x000000ff ) << 24) | (((x) & 0x0000ff00 ) << 8) | (((x) & 0x00ff0000 ) >> 8) | (((x) & 0xff000000 ) >> 24))
+
+
+static Eina_Bool evas_image_load_file_head_edb(Image_Entry *ie, const char *file, const char *key, int *error) EINA_ARG_NONNULL(1, 2, 4);
+static Eina_Bool evas_image_load_file_data_edb(Image_Entry *ie, const char *file, const char *key, int *error) EINA_ARG_NONNULL(1, 2, 4);
+
+static Evas_Image_Load_Func evas_image_load_edb_func =
+{
+  EINA_TRUE,
+  evas_image_load_file_head_edb,
+  evas_image_load_file_data_edb,
+  NULL
+};
+
+static Eina_Bool
+evas_image_load_file_head_edb(Image_Entry *ie, const char *file, const char *key, int *error)
+{
+   int                  w, h, alpha, compression, size;
+   E_DB_File           *db;
+   DATA32              *ret;
+   DATA32               header[8];
+
+   if (!key)
+     {
+        *error = EVAS_LOAD_ERROR_DOES_NOT_EXIST;
+        return EINA_FALSE;
+     }
+   db = e_db_open_read((char *)file);
+   if (!db)
+     {
+        *error = EVAS_LOAD_ERROR_DOES_NOT_EXIST;
+        return EINA_FALSE;
+     }
+   ret = e_db_data_get(db, (char *)key, &size);
+   if (!ret)
+     {
+        e_db_close(db);
+        *error = EVAS_LOAD_ERROR_DOES_NOT_EXIST;
+        return EINA_FALSE;
+     }
+   if (size < 32)
+     {
+        free(ret);
+        e_db_close(db);
+        *error = EVAS_LOAD_ERROR_CORRUPT_FILE;
+        return EINA_FALSE;
+     }
+   memcpy(header, ret, 32);
+#ifdef WORDS_BIGENDIAN
+     {
+        int i;
+
+        for (i = 0; i < 8; i++) SWAP32(header[i]);
+     }
+#endif
+   if (header[0] != 0xac1dfeed)
+     {
+        free(ret);
+        e_db_close(db);
+        *error = EVAS_LOAD_ERROR_CORRUPT_FILE;
+        return EINA_FALSE;
+     }
+   w = header[1];
+   h = header[2];
+   if ((w < 1) || (h < 1) || (w > IMG_MAX_SIZE) || (h > IMG_MAX_SIZE) || 
+       IMG_TOO_BIG(w, h))
+     {
+        free(ret);
+        e_db_close(db);
+        if (IMG_TOO_BIG(w, h))
+          *error = EVAS_LOAD_ERROR_RESOURCE_ALLOCATION_FAILED;
+        else
+          *error = EVAS_LOAD_ERROR_GENERIC;
+        return EINA_FALSE;
+     }
+   alpha = header[3];
+   compression = header[4];
+   
+   if ((compression == 0) && (size < ((w * h * 4) + 32)))
+     {
+        free(ret);
+        e_db_close(db);
+        *error = EVAS_LOAD_ERROR_GENERIC;
+        return EINA_FALSE;
+     }
+   if (alpha) ie->flags.alpha = 1;
+   ie->w = w;
+   ie->h = h;
+   free(ret);
+   e_db_close(db);
+   *error = EVAS_LOAD_ERROR_NONE;
+   return EINA_TRUE;
+}
+
+static Eina_Bool
+evas_image_load_file_data_edb(Image_Entry *ie, const char *file, const char *key, int *error)
+{
+   int                  w, h, alpha, compression, size;
+   E_DB_File           *db;
+   DATA32              *ret;
+   DATA32              *body;
+   DATA32              *surface;
+   DATA32               header[8];
+
+   if (!key)
+     {
+        *error = EVAS_LOAD_ERROR_DOES_NOT_EXIST;
+        return EINA_FALSE;
+     }
+   db = e_db_open_read((char *)file);
+   if (!db)
+     {
+        *error = EVAS_LOAD_ERROR_DOES_NOT_EXIST;
+        return EINA_FALSE;
+     }
+   ret = e_db_data_get(db, (char *)key, &size);
+   if (!ret)
+     {
+        e_db_close(db);
+        *error = EVAS_LOAD_ERROR_DOES_NOT_EXIST;
+        return EINA_FALSE;
+     }
+   if (size < 32)
+     {
+        free(ret);
+        e_db_close(db);
+        *error = EVAS_LOAD_ERROR_CORRUPT_FILE;
+        return EINA_FALSE;
+     }
+   memcpy(header, ret, 32);
+#ifdef WORDS_BIGENDIAN
+     {
+        int i;
+
+        for (i = 0; i < 8; i++) SWAP32(header[i]);
+     }
+#endif
+   if (header[0] != 0xac1dfeed)
+     {
+        free(ret);
+        e_db_close(db);
+        *error = EVAS_LOAD_ERROR_CORRUPT_FILE;
+        return EINA_FALSE;
+     }
+   w = header[1];
+   h = header[2];
+   if ((w < 1) || (h < 1) || (w > IMG_MAX_SIZE) || (h > IMG_MAX_SIZE) ||
+       IMG_TOO_BIG(w, h))
+     {
+        free(ret);
+        e_db_close(db);
+        if (IMG_TOO_BIG(w, h))
+          *error = EVAS_LOAD_ERROR_RESOURCE_ALLOCATION_FAILED;
+        else
+          *error = EVAS_LOAD_ERROR_GENERIC;
+        return EINA_FALSE;
+     }
+   
+   alpha = header[3];
+   compression = header[4];
+   
+   if ((compression == 0) && (size < ((w * h * 4) + 32)))
+     {
+        free(ret);
+        e_db_close(db);
+        *error = EVAS_LOAD_ERROR_GENERIC;
+        return EINA_FALSE;
+     }
+   if (alpha) ie->flags.alpha = 1;
+   body = &(ret[8]);
+   evas_cache_image_surface_alloc(ie, w, h);
+   surface = evas_cache_image_pixels(ie);
+   if (!surface)
+     {
+        free(ret);
+        e_db_close(db);
+        *error = EVAS_LOAD_ERROR_RESOURCE_ALLOCATION_FAILED;
+        return EINA_FALSE;
+     }
+   if (!compression)
+     {
+#ifdef WORDS_BIGENDIAN
+          {
+             int x;
+
+             memcpy(surface, body, w * h * sizeof(DATA32));
+             for (x = 0; x < (w * h); x++) SWAP32(surface[x]);
+          }
+#else
+        memcpy(surface, body, w * h * sizeof(DATA32));
+#endif
+     }
+   else
+     {
+        uLongf dlen;
+
+        dlen = w * h * sizeof(DATA32);
+        uncompress((Bytef *)surface, &dlen, (Bytef *)body,
+                   (uLongf)(size - 32));
+#ifdef WORDS_BIGENDIAN
+          {
+             int x;
+
+             for (x = 0; x < (w * h); x++) SWAP32(surface[x]);
+          }
+#endif
+     }
+   evas_common_image_premul(ie);
+   free(ret);
+   e_db_close(db);
+   *error = EVAS_LOAD_ERROR_NONE;
+   return EINA_TRUE;
+}
+
+static int
+module_open(Evas_Module *em)
+{
+   if (!em) return 0;
+   em->functions = (void *)(&evas_image_load_edb_func);
+   return 1;
+}
+
+static void
+module_close(Evas_Module *em)
+{
+}
+
+static Evas_Module_Api evas_modapi =
+{
+   EVAS_MODULE_API_VERSION,
+   "edb",
+   "none",
+   {
+     module_open,
+     module_close
+   }
+};
+
+EVAS_MODULE_DEFINE(EVAS_MODULE_TYPE_IMAGE_LOADER, image_loader, edb);
+
+#ifndef EVAS_STATIC_BUILD_EDB
+EVAS_EINA_MODULE_DEFINE(image_loader, edb);
+#endif