1 files changed, 99 insertions, 0 deletions
diff --git a/gpr/source/lib/common/private/gpr_buffer.c b/gpr/source/lib/common/private/gpr_buffer.c
new file mode 100755
index 0000000..083bc0d
--- /dev/null
+++ b/gpr/source/lib/common/private/gpr_buffer.c
@@ -0,0 +1,99 @@
+/*! @file gpr_buffer.c
+ *
+ *  @brief Implementation of gpr_buffer object and functions that work on buffer
+ *
+ *  @version 1.0.0
+ *
+ *  (C) Copyright 2018 GoPro Inc (http://gopro.com/).
+ *
+ *  Licensed under either:
+ *  - Apache License, Version 2.0, http://www.apache.org/licenses/LICENSE-2.0
+ *  - MIT license, http://opensource.org/licenses/MIT
+ *  at your option.
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+#include "gpr_buffer.h"
+#include "macros.h"
+#include "stdc_includes.h"
+
+int read_from_file(gpr_buffer* buffer, const char* file_path, gpr_malloc malloc_function, gpr_free free_function)
+{
+    assert( buffer != NULL );
+    
+    FILE *fIN = fopen(file_path, "rb");
+    if (fIN == NULL)
+    {
+        fprintf (stderr, "Error while reading file: %s", file_path);
+        return -1;
+    }
+    
+    fseek (fIN, 0, SEEK_END);
+    buffer->size = (size_t) ftell(fIN);
+    rewind (fIN);
+    
+    buffer->buffer = malloc_function(buffer->size);
+    
+    if ( buffer->buffer == NULL)
+    {
+        fputs ("Memory error", stderr);
+        fclose(fIN);
+        return -1;
+    }
+    
+    if (fread(buffer->buffer, 1, buffer->size, fIN) != buffer->size)
+    {
+        free_function(buffer->buffer);
+        fputs ("Reading error", stderr);
+        fclose(fIN);
+        return -1;
+    }
+    
+    fclose(fIN);
+    
+    return 0;
+}
+
+int write_to_file(const gpr_buffer* buffer, const char* file_path)
+{
+    unsigned int bytes_written;
+
+    FILE *fOUT = fopen(file_path, "wb");
+    if (fOUT == NULL)
+    {
+        fprintf (stderr, "Error while writing file: %s", file_path);
+        return -1;
+    }
+    
+    bytes_written = fwrite(buffer->buffer, 1, buffer->size, fOUT);
+    if( bytes_written != buffer->size ) {
+        fputs("Could not write bytes \n", stderr);
+        perror("fwrite()");
+        fclose(fOUT);
+        return -2;
+    }
+
+    fclose(fOUT);
+    
+    return 0;
+}
+
+#include "gpr_rgb_buffer.h"
+
+void gpr_rgb_gain_set_defaults(gpr_rgb_gain* x)
+{
+    x->r_gain_num      = 30;
+    x->r_gain_pow2_den = 4;
+    
+    x->g_gain_num      = 1;
+    x->g_gain_pow2_den = 0;
+    
+    x->b_gain_num      = 7;
+    x->b_gain_pow2_den = 2;
+}
+