Tighten up restrictions on blit width: some shaders assert that they

are addressing more than 0 pixels.
codereview.appspot.com/5489125/



git-svn-id: http://skia.googlecode.com/svn/trunk@2935 2bbb7eff-a529-9590-31e7-b0007b416f81

1 files changed, 2 insertions, 2 deletions

diff --git a/src/core/SkBlitter.cpp b/src/core/SkBlitter.cpp
index 265ae6b6ef..8bb4b4f20a 100644
--- a/src/core/SkBlitter.cpp
+++ b/src/core/SkBlitter.cpp
@@ -47,7 +47,7 @@ void SkBlitter::blitV(int x, int y, int height, SkAlpha alpha) {
 }
 
 void SkBlitter::blitRect(int x, int y, int width, int height) {
-    SkASSERT(width >= 0);
+    SkASSERT(width > 0);
     while (--height >= 0) {
         this->blitH(x, y++, width);
     }
@@ -59,7 +59,7 @@ void SkBlitter::blitRect(int x, int y, int width, int height) {
 void SkBlitter::blitAntiRect(int x, int y, int width, int height,
                              SkAlpha leftAlpha, SkAlpha rightAlpha) {
     this->blitV(x++, y, height, leftAlpha);
-    if (width >= 0) {
+    if (width > 0) {
         this->blitRect(x, y, width, height);
         x += width;
     }