if no b/a area enabled some speed up when opening images

rtengine/myfile.cc

@@ -0,0 +1,135 @@
+/*
+ *  This file is part of RawTherapee.
+ *
+ *  Copyright (c) 2004-2010 Gabor Horvath <hgabor@rawtherapee.com>
+ *
+ *  RawTherapee is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ * 
+ *  RawTherapee is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with RawTherapee.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <myfile.h>
+#include <cstdarg>
+#include <glibmm.h>
+#ifdef RAWZOR_SUPPORT
+#include <rwz_sdk.h>
+#endif
+
+IMFILE* fopen (const char* fname) {
+
+	FILE* f = fopen (fname, "rb");
+    if (!f)
+        return NULL;
+    IMFILE* mf = new IMFILE;
+	fseek (f, 0, SEEK_END);
+	mf->size = ftell (f);
+	mf->data = new char [mf->size];
+	fseek (f, 0, SEEK_SET);
+	fread (mf->data, 1, mf->size, f);
+	fclose (f);
+	mf->pos = 0;
+	mf->eof = false;
+#ifdef RAWZOR_SUPPORT
+    // RAWZOR support begin
+    bool rawzor = false;
+    Glib::ustring bname = Glib::path_get_basename(fname);
+    int lastdot = bname.find_last_of ('.');
+    if (lastdot!=bname.npos)
+        rawzor = bname.substr (lastdot).casefold() == Glib::ustring(".rwz").casefold();
+
+    if (rawzor) {
+        int realSize = 0;
+        if (!m_rwz_check (mf->data, mf->size, &realSize)) {
+            char* realData = new char [realSize];
+            m_rwz_decompress (mf->data, mf->size, realData, realSize);
+            delete [] mf->data;
+            mf->data = realData;
+            mf->size = realSize;
+        }
+    }
+    // RAWZOR support end
+#endif
+
+	return mf;
+}
+
+IMFILE* gfopen (const char* fname) {
+
+	FILE* f = g_fopen (fname, "rb");
+    if (!f)
+        return NULL;
+    IMFILE* mf = new IMFILE;
+	fseek (f, 0, SEEK_END);
+	mf->size = ftell (f);
+	mf->data = new char [mf->size];
+	fseek (f, 0, SEEK_SET);
+	fread (mf->data, 1, mf->size, f);
+	fclose (f);
+	mf->pos = 0;
+	mf->eof = false;
+
+#ifdef RAWZOR_SUPPORT
+    // RAWZOR support begin
+    bool rawzor = false;
+    Glib::ustring bname = Glib::path_get_basename(fname);
+    int lastdot = bname.find_last_of ('.');
+    if (lastdot!=bname.npos)
+        rawzor = bname.substr (lastdot).casefold() == Glib::ustring(".rwz").casefold();
+
+    if (rawzor) {
+        int realSize = 0;
+        if (!m_rwz_check (mf->data, mf->size, &realSize)) {
+            char* realData = new char [realSize];
+            m_rwz_decompress (mf->data, mf->size, realData, realSize);
+            delete [] mf->data;
+            mf->data = realData;
+            mf->size = realSize;
+        }
+    }
+    // RAWZOR support end
+#endif
+	return mf;
+}
+
+IMFILE* fopen (unsigned* buf, int size) {
+
+	IMFILE* mf = new IMFILE;
+	mf->size = size;
+	mf->data = new char [mf->size];
+	memcpy (mf->data, buf, size);
+	mf->pos = 0;
+	mf->eof = false;
+	return mf;
+}
+
+void fclose (IMFILE* f) {
+
+	delete [] f->data;
+	delete f;
+}
+
+int fscanf (IMFILE* f, const char* s ...) {
+
+	va_list ap;
+	return sscanf (f->data, s, ap);
+}
+
+char* fgets (char* s, int n, IMFILE* f) {
+
+	if (f->pos>=f->size) {
+		f->eof = true;
+		return NULL;
+	}
+	int i = 0;
+	do s[i++] = f->data[f->pos++];		
+	while (i<n && f->pos<f->size);
+	return s;
+}