X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Frrd_gfx.c;h=93341e709657c8a53dde176dafa16559e2ed47eb;hb=bc35c1638fc82446f3979d6f954a59a8e9333cc9;hp=3ad318a97e226294c94aa019345d72dd3a687c26;hpb=423b8ed6a9020e284c84683f6facbed8c3734db2;p=rrdtool.git

diff --git a/src/rrd_gfx.c b/src/rrd_gfx.c
index 3ad318a..93341e7 100644
--- a/src/rrd_gfx.c
+++ b/src/rrd_gfx.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * RRDtool 1.2.1  Copyright by Tobi Oetiker, 1997-2005
+ * RRDtool 1.2.3  Copyright by Tobi Oetiker, 1997-2005
  ****************************************************************************
  * rrd_gfx.c  graphics wrapper for rrdtool
   **************************************************************************/
@@ -514,12 +514,12 @@ int           gfx_render_png (gfx_canvas_t *canvas,
     unsigned long pys_height = height * canvas->zoom;
     const int bytes_per_pixel = 4;
     unsigned long rowstride = pys_width*bytes_per_pixel; /* bytes per pixel */
-    art_u8 *buffer = art_new (art_u8, rowstride*pys_height);
+    
     /* fill that buffer with out background color */
-    gfx_color_t *buffp;
-    long i;
-    for (i=0,buffp=(gfx_color_t *)buffer;
-         i<pys_width*pys_height;
+    gfx_color_t *buffp = art_new (gfx_color_t, pys_width*pys_height);
+    art_u8 *buffer = (art_u8 *)buffp;
+    unsigned long i;
+    for (i=0;i<pys_width*pys_height;
 	 i++){
 	*(buffp++)=background;
     }
@@ -528,28 +528,31 @@ int           gfx_render_png (gfx_canvas_t *canvas,
         switch (node->type) {
         case GFX_LINE:
         case GFX_AREA: {   
-            ArtVpath *vec,*pvec;
+            ArtVpath *vec;
             double dst[6];     
-            ArtSVP *svp,*svpt;
+            ArtSVP *svp;
             art_affine_scale(dst,canvas->zoom,canvas->zoom);
             vec = art_vpath_affine_transform(node->path,dst);
 	    if (node->closed_path)
 		gfx_libart_close_path(node, &vec);
 	    /* gfx_round_scaled_coordinates(vec); */
-            pvec = art_vpath_perturb(vec);
-	    art_free(vec);
+            /* pvec = art_vpath_perturb(vec);
+	       art_free(vec); */
             if(node->type == GFX_LINE){
-                svp = art_svp_vpath_stroke ( pvec, ART_PATH_STROKE_JOIN_ROUND,
+                svp = art_svp_vpath_stroke ( vec, ART_PATH_STROKE_JOIN_ROUND,
                                              ART_PATH_STROKE_CAP_ROUND,
                                              node->size*canvas->zoom,4,0.25);
             } else {
-                svp  = art_svp_from_vpath ( pvec );
-                svpt = art_svp_uncross( svp );
-                art_svp_free(svp);
-	        svp  = art_svp_rewind_uncrossed(svpt,ART_WIND_RULE_NONZERO); 
-                art_svp_free(svpt);
+                svp  = art_svp_from_vpath ( vec );
+		/* this takes time and is unnecessary since we make
+	           sure elsewhere that the areas are going clock-whise */
+		/*  svpt = art_svp_uncross( svp );
+                    art_svp_free(svp);
+	            svp  = art_svp_rewind_uncrossed(svpt,ART_WIND_RULE_NONZERO); 
+                    art_svp_free(svpt);
+                 */
             }
-            art_free(pvec);
+            art_free(vec);
 	    /* this is from gnome since libart does not have this yet */
             gnome_print_art_rgba_svp_alpha (svp ,0,0, pys_width, pys_height,
                                 node->color, buffer, rowstride, NULL);
@@ -795,8 +798,9 @@ static int gfx_save_png (art_u8 *buffer, FILE *fp,  long width, long height, lon
   text[0].compression = PNG_TEXT_COMPRESSION_NONE;
   png_set_text (png_ptr, info_ptr, text, 1);
 
-  /* lets make this fast */
-  /* png_set_filter(png_ptr,0,PNG_FILTER_NONE); */
+  /* lets make this fast while ending up with some increass in image size */
+  png_set_filter(png_ptr,0,PNG_FILTER_NONE);
+  /* png_set_filter(png_ptr,0,PNG_FILTER_SUB); */
   png_set_compression_level(png_ptr,1);
   /* png_set_compression_strategy(png_ptr,Z_HUFFMAN_ONLY); */
   /* 
@@ -1209,7 +1213,7 @@ static void svg_text(FILE *fp, gfx_node_t *node)
      fputs(",", fp);
      svg_write_number(fp, y);
      fputs(") rotate(", fp);
-     svg_write_number(fp, node->angle);
+     svg_write_number(fp, -node->angle);
      fputs(")\"", fp);
      x = y = 0;
      svg_close_tag(fp);
@@ -1413,7 +1417,7 @@ static int eps_prologue(eps_state *state)
   gfx_node_t *node;
   fputs(
     "%!PS-Adobe-3.0 EPSF-3.0\n"
-    "%%Creator: RRDtool 1.2.1 Tobias Oetiker, http://tobi.oetiker.ch\n"
+    "%%Creator: RRDtool 1.2.3 Tobias Oetiker, http://tobi.oetiker.ch\n"
     /* can't like weird chars here */
     "%%Title: (RRDtool output)\n"
     "%%DocumentData: Clean7Bit\n"
@@ -1605,7 +1609,7 @@ static void eps_write_text(eps_state *state, gfx_node_t *node)
     fputc(' ', fp);
     svg_write_number(fp, y);
     fputs(" translate ", fp);
-    svg_write_number(fp, -node->angle);
+    svg_write_number(fp, node->angle);
     fputs(" rotate 0 ", fp);
     svg_write_number(fp, ydelta);
     fputs(" moveto ", fp);
@@ -1997,7 +2001,7 @@ static void pdf_write_text(pdf_state *state, gfx_node_t *node,
   }
   pdf_set_fill_color(s, node->color);
   if (node->angle != 0) {
-    double a = 2 * M_PI * -node->angle / 360.0;
+    double a = 2 * M_PI * node->angle / 360.0;
     double new_x, new_y;
     cos_a = cos(a);
     sin_a = sin(a);