rsys

commit 88a5991a28874e77a956f93517e053730dd1eb10
parent 232f064831b2e0d8ff7ae49cc4a746948d40aaf3
Author: vaplv <vaplv@free.fr>
Date:   Tue, 10 Nov 2015 12:42:09 +0100

Add the image_ppm_write_stream function

Diffstat:
M
src/image.c
 | 
37
+++++++++++++++++++++++++++++++------
M
src/image.h
 | 
8
++++++++

2 files changed, 39 insertions(+), 6 deletions(-)
diff --git a/src/image.c b/src/image.c
@@ -30,19 +30,45 @@ image_ppm_write
    const int Bpp,
    const unsigned char* buffer)
 {
-  char buf[BUFSIZ];
   FILE* fp = NULL;
   res_T res = RES_OK;
 
-  if(width && height && Bpp && !buffer) {
-    goto error;
-  }
   fp = fopen(path, "w");
   if(NULL == fp) {
     res = RES_IO_ERR;
     goto error;
   }
 
+  res = image_ppm_write_stream(fp, width, height, Bpp, buffer);
+  if(res != RES_OK) goto error;
+
+exit:
+  if(fp) fclose(fp);
+  return res;
+error:
+  goto exit;
+}
+
+res_T
+image_ppm_write_stream
+  (FILE* fp,
+   const int width,
+   const int height,
+   const int Bpp,
+   const unsigned char* buffer)
+{
+  char buf[BUFSIZ];
+  res_T res = RES_OK;
+
+  if(width && height && Bpp && !buffer) {
+    res = RES_BAD_ARG;
+    goto error;
+  }
+  if(!fp) {
+    res = RES_BAD_ARG;
+    goto error;
+  }
+
   #define FWRITE(Fp, String)                                                   \
     {                                                                          \
       const size_t i = fwrite(String, sizeof(char), strlen(String), Fp);       \
@@ -75,9 +101,8 @@ image_ppm_write
   }
   #undef SNPRINTF
   #undef FWRITE
+
 exit:
-  if(fp)
-    fclose(fp);
   return res;
 error:
   goto exit;
diff --git a/src/image.h b/src/image.h
@@ -28,6 +28,14 @@ image_ppm_write
    const int bytes_per_pixel,
    const unsigned char* buffer);
 
+RSYS_API res_T
+image_ppm_write_stream
+  (FILE* stream,
+   const int width,
+   const int height,
+   const int bytes_per_pixel,
+   const unsigned char* buffer);
+
 END_DECLS
 
 #endif /* IMAGE_H */