removed superfluouse code

git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk/program@1080 a5681a0c-68f1-0310-ab6d-d61299d08faa

diff --git a/src/gdpng.c b/src/gdpng.c
deleted file mode 100644 (file)
index 6b50166..0000000
--- a/src/gdpng.c
+++ /dev/null
@@ -1,69 +0,0 @@
-/*****************************************************************************
- * RRDtool 1.2.23  Copyright by Tobi Oetiker, 1997-2007
- *****************************************************************************
- * gdpng.c  add PNG output routine to gd library
- *****************************************************************************/
-
-#include <png.h>
-#include <gd.h>
-#include <stdlib.h>
-
-typedef struct _jmpbuf_wrapper {
-    jmp_buf   jmpbuf;
-} jmpbuf_wrapper;
-
-static jmpbuf_wrapper gdPngJmpbufStruct;
-
-void gdImagePng(
-    gdImagePtr im,
-    FILE * out)
-{
-    int       i;
-    png_colorp palette;
-    png_structp png_write_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING,
-                                                        (png_voidp) NULL,
-                                                        /* we would need to point to error handlers
-                                                           here to do it properly */
-                                                        (png_error_ptr) NULL,
-                                                        (png_error_ptr) NULL);
-    png_infop info_ptr = png_create_info_struct(png_write_ptr);
-
-    if (setjmp(gdPngJmpbufStruct.jmpbuf)) {
-        png_destroy_write_struct(&png_write_ptr, &info_ptr);
-        return;
-    }
-
-    palette = (png_colorp) png_malloc(png_write_ptr,
-                                      im->colorsTotal * sizeof(png_color));
-    if (palette == NULL) {
-        png_destroy_write_struct(&png_write_ptr, &info_ptr);
-        return;
-    }
-
-
-    png_init_io(png_write_ptr, out);
-    png_set_write_status_fn(png_write_ptr, NULL);
-    png_set_IHDR(png_write_ptr, info_ptr,
-                 im->sx, im->sy, im->colorsTotal > 16 ? 8 : 4,
-                 PNG_COLOR_TYPE_PALETTE,
-                 im->interlace ? PNG_INTERLACE_ADAM7 : PNG_INTERLACE_NONE,
-                 PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
-    for (i = 0; i < im->colorsTotal; i++) {
-        palette[i].red = im->red[i];
-        palette[i].green = im->green[i];
-        palette[i].blue = im->blue[i];
-    }
-    png_set_PLTE(png_write_ptr, info_ptr, palette, im->colorsTotal);
-
-    /* choose between speed (1) and space (9) optimisation */
-    /* we want to be fast ... */
-    png_set_compression_level(png_write_ptr, 1);
-    png_set_filter(png_write_ptr, PNG_FILTER_TYPE_BASE, PNG_NO_FILTERS);
-    /* store file info */
-    png_write_info(png_write_ptr, info_ptr);
-    png_set_packing(png_write_ptr);
-    png_write_image(png_write_ptr, im->pixels);
-    png_write_end(png_write_ptr, info_ptr);
-    png_free(png_write_ptr, palette);
-    png_destroy_write_struct(&png_write_ptr, &info_ptr);
-}