From 37c48820d5927c891edfe0df773ee882d9a1acae Mon Sep 17 00:00:00 2001
From: raster <raster@7cbeb6ba-43b4-40fd-8cce-4c39aea84d33>
Date: Tue, 11 Oct 2011 06:06:11 +0000
Subject: [PATCH] use lround() for map coord rounding to avoid silly things
 like 15.999999999999999998 rounding down to 15... whihc leads to sometimes...
 odd off-by-1 expected results.

git-svn-id: http://svn.enlightenment.org/svn/e/trunk/evas@63978 7cbeb6ba-43b4-40fd-8cce-4c39aea84d33
---
 src/lib/canvas/evas_map.c          |  8 ++++----
 src/lib/canvas/evas_object_image.c | 11 ++++++-----
 src/lib/canvas/evas_render.c       | 11 ++++++-----
 3 files changed, 16 insertions(+), 14 deletions(-)

diff --git a/src/lib/canvas/evas_map.c b/src/lib/canvas/evas_map.c
index 28a9592..930c0f5 100644
--- a/src/lib/canvas/evas_map.c
+++ b/src/lib/canvas/evas_map.c
@@ -81,10 +81,10 @@ _evas_map_calc_map_geometry(Evas_Object *obj)
 
    p = obj->cur.map->points;
    p_end = p + obj->cur.map->count;
-   x1 = p->x;
-   x2 = p->x;
-   y1 = p->y;
-   y2 = p->y;
+   x1 = lround(p->x);
+   x2 = lround(p->x);
+   y1 = lround(p->y);
+   y2 = lround(p->y);
    p++;
    for (; p < p_end; p++)
      {
diff --git a/src/lib/canvas/evas_object_image.c b/src/lib/canvas/evas_object_image.c
index e976a3f..561b3da 100644
--- a/src/lib/canvas/evas_object_image.c
+++ b/src/lib/canvas/evas_object_image.c
@@ -2,6 +2,7 @@
 #include <unistd.h>
 #include <stdlib.h>
 #include <sys/mman.h>
+#include <math.h>
 
 #include "evas_common.h"
 #include "evas_private.h"
@@ -2887,14 +2888,14 @@ evas_object_image_render(Evas_Object *obj, void *output, void *context, void *su
              // draw geom +x +y
              for (; p < p_end; p++, pt++)
                {
-                  pt->x = (p->x + (double)x) * FP1;
-                  pt->y = (p->y + (double)y) * FP1;
-                  pt->z = (p->z)             * FP1;
+                  pt->x = (lround(p->x) + x) * FP1;
+                  pt->y = (lround(p->y) + y) * FP1;
+                  pt->z = (lround(p->z)    ) * FP1;
                   pt->fx = p->px;
                   pt->fy = p->py;
                   pt->fz = p->z;
-                  pt->u = ((p->u * imagew) / uvw) * FP1;
-                  pt->v = ((p->v * imageh) / uvh) * FP1;
+                  pt->u = ((lround(p->u) * imagew) / uvw) * FP1;
+                  pt->v = ((lround(p->v) * imageh) / uvh) * FP1;
                   if      (pt->u < 0) pt->u = 0;
                   else if (pt->u > (imagew * FP1)) pt->u = (imagew * FP1);
                   if      (pt->v < 0) pt->v = 0;
diff --git a/src/lib/canvas/evas_render.c b/src/lib/canvas/evas_render.c
index 12f5f2c..ebb9ecf 100644
--- a/src/lib/canvas/evas_render.c
+++ b/src/lib/canvas/evas_render.c
@@ -1,5 +1,6 @@
 #include "evas_common.h"
 #include "evas_private.h"
+#include <math.h>
 
 // debug rendering
 /* #define REND_DGB 1 */
@@ -911,14 +912,14 @@ evas_render_mapped(Evas *e, Evas_Object *obj, void *context, void *surface,
         pt = pts;
         for (; p < p_end; p++, pt++)
           {
-             pt->x = (p->x + (double)off_x) * FP1;
-             pt->y = (p->y + (double)off_y) * FP1;
-             pt->z = (p->z)                 * FP1;
+             pt->x = (lround(p->x) + off_x) * FP1;
+             pt->y = (lround(p->y) + off_y) * FP1;
+             pt->z = (lround(p->z)        ) * FP1;
              pt->fx = p->px;
              pt->fy = p->py;
              pt->fz = p->z;
-             pt->u = p->u * FP1;
-             pt->v = p->v * FP1;
+             pt->u = lround(p->u) * FP1;
+             pt->v = lround(p->v) * FP1;
              if      (pt->u < 0) pt->u = 0;
              else if (pt->u > (sw * FP1)) pt->u = (sw * FP1);
              if      (pt->v < 0) pt->v = 0;
-- 
2.7.4