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-rw-r--r--hl/test/test_image.c321
1 files changed, 269 insertions, 52 deletions
diff --git a/hl/test/test_image.c b/hl/test/test_image.c
index 8b446b8..db2b5c6 100644
--- a/hl/test/test_image.c
+++ b/hl/test/test_image.c
@@ -25,19 +25,33 @@
#define DATA_FILE2 "image24pixel.txt"
#define DATA_FILE3 "image24plane.txt"
#define DATA_FILE4 "usa.wri"
+#define PAL2_FILE "sepia.pal"
+#define PAL3_FILE "earth.pal"
#define IMAGE1_NAME "image8bit"
#define IMAGE2_NAME "image24bitpixel"
#define IMAGE3_NAME "image24bitplane"
-#define PAL_NAME "rainbow pallete"
+#define PAL1_NAME "rainbow"
+#define PAL2_NAME "sepia"
+#define PAL3_NAME "earth"
#define WIDTH (hsize_t)50
#define HEIGHT (hsize_t)20
+
+/* struct to store RGB values read from a .pal file */
+typedef struct rgb_t {
+ unsigned char r;
+ unsigned char g;
+ unsigned char b;
+} rgb_t;
+
/* prototypes */
static int test_simple(void);
static int test_data(void);
static int test_generate(void);
-static int read_data( const char* file_name, hsize_t *width, hsize_t *height );
+static int read_data(const char* file_name, hsize_t *width, hsize_t *height );
+static int read_palette(const char* file_name, rgb_t *palette, int palette_size);
+
/* globals */
unsigned char *image_data = NULL;
@@ -298,12 +312,13 @@ out:
static int test_data(void)
{
- hid_t fid;
- hsize_t pal_dims[2];
- char *srcdir = getenv("srcdir"); /* the source directory */
- char data_file[512]=""; /* buffer to hold name of existing data file */
- hsize_t width;
- hsize_t height;
+ hid_t fid;
+ hsize_t pal_dims[2];
+ hsize_t width;
+ hsize_t height;
+ unsigned char pal[256*3]; /* buffer to hold an HDF5 palette */
+ rgb_t rgb[256]; /* buffer to hold a .pal file palette */
+ int i, n;
/* create a file using default properties */
if ((fid=H5Fcreate(FILE2,H5F_ACC_TRUNC,H5P_DEFAULT,H5P_DEFAULT))<0)
@@ -318,32 +333,87 @@ static int test_data(void)
TESTING2("make indexed image");
- strcpy(data_file, "");
- /* compose the name of the file to open, using the srcdir, if appropriate */
- if (srcdir)
- {
- strcpy(data_file, srcdir);
- strcat(data_file, "/");
- }
/* read first data file */
- strcat(data_file,DATA_FILE1);
- if ((read_data(data_file,&width,&height))<0)
+ if (read_data(DATA_FILE1,&width,&height)<0)
goto out;
/* make an image */
- if ((H5IMmake_image_8bit(fid,IMAGE1_NAME,width,height,image_data))<0)
+ if (H5IMmake_image_8bit(fid,IMAGE1_NAME,width,height,image_data)<0)
goto out;
+
+ PASSED();
+
+
+ TESTING2("attaching palettes");
+
+/*-------------------------------------------------------------------------
+ * palette #1. rainbow palette. data is contained in "pal_rgb.h"
+ *-------------------------------------------------------------------------
+ */
- /* initialize the palette data; pal_rgb data is contained in "pal_rgb.h" */
+ /* initialize the palette data */
pal_dims[0] = 256;
pal_dims[1] = 3;
/* make a palette */
- if ((H5IMmake_palette(fid,PAL_NAME,pal_dims,pal_rgb))<0)
+ if (H5IMmake_palette(fid,PAL1_NAME,pal_dims,pal_rgb)<0)
goto out;
/* attach a palette to the image dataset */
- if ((H5IMlink_palette(fid,IMAGE1_NAME,PAL_NAME))<0)
+ if (H5IMlink_palette(fid,IMAGE1_NAME,PAL1_NAME)<0)
+ goto out;
+
+/*-------------------------------------------------------------------------
+ * palette #1. sepia palette.
+ * read a PAL file and attach the palette to the HDF5 file
+ *-------------------------------------------------------------------------
+ */
+
+ /* read a PAL file */
+ if (read_palette(PAL2_FILE, rgb, sizeof(rgb))<0)
+ goto out;
+
+ /* transfer to the HDF5 buffer */
+ for ( i=0, n=0; i<256*3; i+=3, n++)
+ {
+ pal[i] =rgb[n].r;
+ pal[i+1]=rgb[n].g;
+ pal[i+2]=rgb[n].b;
+ }
+
+ /* make a palette */
+ if (H5IMmake_palette(fid,PAL2_NAME,pal_dims,pal)<0)
+ goto out;
+
+ /* attach the palette to the image dataset */
+ if (H5IMlink_palette(fid,IMAGE1_NAME,PAL2_NAME)<0)
+ goto out;
+
+/*-------------------------------------------------------------------------
+ * palette #1. earth palette.
+ * read a PAL file and attach the palette to the HDF5 file
+ *-------------------------------------------------------------------------
+ */
+
+
+ /* read a PAL file */
+ if (read_palette(PAL3_FILE, rgb, sizeof(rgb))<0)
+ goto out;
+
+ /* transfer to the HDF5 buffer */
+ for ( i=0, n=0; i<256*3; i+=3, n++)
+ {
+ pal[i] =rgb[n].r;
+ pal[i+1]=rgb[n].g;
+ pal[i+2]=rgb[n].b;
+ }
+
+ /* make a palette */
+ if (H5IMmake_palette(fid,PAL3_NAME,pal_dims,pal)<0)
+ goto out;
+
+ /* attach the palette to the image dataset */
+ if (H5IMlink_palette(fid,IMAGE1_NAME,PAL3_NAME)<0)
goto out;
PASSED();
@@ -357,15 +427,7 @@ static int test_data(void)
TESTING2("make true color image with pixel interlace");
/* read second data file */
- strcpy(data_file, "");
- /* compose the name of the file to open, using the srcdir, if appropriate */
- if ( srcdir )
- {
- strcpy(data_file, srcdir);
- strcat(data_file, "/");
- }
- strcat( data_file, DATA_FILE2);
- if ((read_data(data_file,&width,&height))<0)
+ if ((read_data(DATA_FILE2,&width,&height))<0)
goto out;
/* make image */
@@ -382,15 +444,7 @@ static int test_data(void)
TESTING2("make true color image with plane interlace");
/* read third data file */
- strcpy(data_file, "");
- /* compose the name of the file to open, using the srcdir, if appropriate */
- if ( srcdir )
- {
- strcpy(data_file, srcdir);
- strcat(data_file, "/");
- }
- strcat( data_file, DATA_FILE3);
- if ((read_data(data_file,&width,&height))<0)
+ if ((read_data(DATA_FILE3,&width,&height))<0)
goto out;
/* make image */
@@ -451,11 +505,9 @@ static int test_generate(void)
printf("Testing read and process data and make indexed images\n");
/*-------------------------------------------------------------------------
- * read data; the file data format is described below
+ * compose the name of the file to open, using the srcdir, if appropriate
*-------------------------------------------------------------------------
*/
-
- /* compose the name of the file to open, using the srcdir, if appropriate */
if ( srcdir )
{
strcpy(data_file, srcdir);
@@ -463,12 +515,15 @@ static int test_generate(void)
}
strcat(data_file,DATA_FILE4);
- /* Read data file */
+/*-------------------------------------------------------------------------
+ * read data; the file data format is described below
+ *-------------------------------------------------------------------------
+ */
+
f = fopen( data_file, "r" ) ;
-
if ( f == NULL )
{
- printf( "Could not find file %s. Try set $srcdir \n", DATA_FILE4 );
+ printf( "Could not find file %s. Try set $srcdir \n", data_file );
H5Fclose(fid);
return -1;
}
@@ -593,15 +648,15 @@ static int test_generate(void)
TESTING2("attaching palettes");
/* make a palette */
- if ((H5IMmake_palette(fid,PAL_NAME,pal_dims,pal_rgb))<0)
+ if ((H5IMmake_palette(fid,PAL1_NAME,pal_dims,pal_rgb))<0)
goto out;
/* Attach the palette to the image datasets */
- if ((H5IMlink_palette(fid,"All data",PAL_NAME))<0)
+ if ((H5IMlink_palette(fid,"All data",PAL1_NAME))<0)
goto out;
- if ((H5IMlink_palette(fid,"Land data",PAL_NAME))<0)
+ if ((H5IMlink_palette(fid,"Land data",PAL1_NAME))<0)
goto out;
- if ((H5IMlink_palette(fid,"Sea data",PAL_NAME))<0)
+ if ((H5IMlink_palette(fid,"Sea data",PAL1_NAME))<0)
goto out;
PASSED();
@@ -643,7 +698,7 @@ out:
*-------------------------------------------------------------------------
*/
-static int read_data( const char* file_name, /*IN*/
+static int read_data( const char* fname, /*IN*/
hsize_t *width, /*OUT*/
hsize_t *height /*OUT*/ )
{
@@ -652,12 +707,30 @@ static int read_data( const char* file_name, /*IN*/
char str[20];
FILE *f;
int w, h;
+ char *srcdir = getenv("srcdir"); /* the source directory */
+ char data_file[512]=""; /* buffer to hold name of existing data file */
+
+/*-------------------------------------------------------------------------
+ * compose the name of the file to open, using "srcdir", if appropriate
+ *-------------------------------------------------------------------------
+ */
+ strcpy(data_file, "");
+ if (srcdir)
+ {
+ strcpy(data_file, srcdir);
+ strcat(data_file, "/");
+ }
+ strcat(data_file,fname);
- f = fopen( file_name, "r");
+/*-------------------------------------------------------------------------
+ * read
+ *-------------------------------------------------------------------------
+ */
+ f = fopen(data_file, "r");
if ( f == NULL )
{
- printf( "Could not open file %s. Try set $srcdir \n", file_name );
+ printf( "Could not open file %s. Try set $srcdir \n", data_file );
return -1;
}
@@ -689,3 +762,147 @@ static int read_data( const char* file_name, /*IN*/
return 1;
}
+
+
+
+/*-------------------------------------------------------------------------
+ * read_palette
+ * Read an ASCII palette file .PAL into an array
+ * the files have a header of the type
+ *
+ * Parameters: filename - name of file to read.
+ * palette - array of RwPalleteEntry to store the
+ * read palette.
+ * palette_size - number of elements in 'palette' array
+ *
+ * Return Value: Returns number of entries read or 0 on error
+ * palette contains palette.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+
+#define STRING_JASC "JASC-PAL"
+#define VERSION_JASC "0100"
+#define STRING_CWPAL "CWPAL"
+#define VERSION_CWPAL "100"
+
+static int read_palette(const char* fname, rgb_t *palette, int palette_size)
+{
+ FILE *file;
+ char buffer[80];
+ int i;
+ unsigned int red;
+ unsigned int green;
+ unsigned int blue;
+ int numEntries;
+ char *srcdir = getenv("srcdir"); /* the source directory */
+ char data_file[512]; /* buffer to hold name of existing data file */
+
+/*-------------------------------------------------------------------------
+ * compose the name of the file to open, using "srcdir", if appropriate
+ *-------------------------------------------------------------------------
+ */
+ strcpy(data_file, "");
+ if (srcdir)
+ {
+ strcpy(data_file, srcdir);
+ strcat(data_file, "/");
+ }
+ strcat(data_file,fname);
+
+ /* ensure the given palette is valid */
+ if (!palette)
+ return -1;
+
+ /* open the input file */
+ if (!(file = fopen(data_file, "r")))
+ {
+ printf( "Could not open file %s. Try set $srcdir \n", data_file );
+ return -1;
+ }
+
+ /* read the file ident string */
+ if (fgets(buffer, sizeof(buffer), file) == NULL)
+ {
+ fclose(file);
+ return -1;
+ }
+
+ /* ensure it matches the palette file ident string */
+ if ( strncmp(buffer, STRING_JASC, sizeof(STRING_JASC) - 1) != 0 &&
+ strncmp(buffer, STRING_CWPAL, sizeof(STRING_CWPAL) - 1) != 0 )
+ {
+ fclose(file);
+ return -1;
+ }
+
+ /* read the version string */
+ if (fgets(buffer, sizeof(buffer), file) == NULL)
+ {
+ fclose(file);
+ return -1;
+ }
+
+ /* ensure it matches the palette file version string */
+ if ( strncmp(buffer, VERSION_JASC, sizeof(VERSION_JASC) - 1) != 0 &&
+ strncmp(buffer, VERSION_CWPAL, sizeof(VERSION_CWPAL) - 1) != 0 )
+ {
+ fclose(file);
+ return -1;
+ }
+
+ /* read the number of colors */
+ if (fgets(buffer, sizeof(buffer), file) == NULL)
+ {
+ fclose(file);
+ return -1;
+ }
+
+
+ /* extract the number of colors.
+ check for missing version or number of colors
+ in this case it reads the first entry
+ */
+ if ( strlen( buffer ) > 4 )
+ {
+ fclose(file);
+ return -1;
+ }
+
+ if (sscanf(buffer, "%d", &numEntries) != 1)
+ {
+ fclose(file);
+ return -1;
+ }
+
+ /* ensure there are a sensible number of colors in the palette */
+ if ((numEntries < 0) || (numEntries > 256) || (numEntries > palette_size))
+ {
+ fclose(file);
+ return(0);
+ }
+
+ /* read the palette entries */
+ for (i = 0; i < numEntries; i++)
+ {
+ /* Extract the red, green and blue color components. */
+ if (fscanf(file, "%u %u %u", &red, &green, &blue) != 3)
+ {
+ fclose(file);
+ return -1;
+ }
+ /* sore this palette entry */
+ palette[i].r = (unsigned char)red;
+ palette[i].g = (unsigned char)green;
+ palette[i].b = (unsigned char)blue;
+ }
+
+ /* close file */
+ fclose(file);
+
+ return numEntries;
+}
+
+
+