pdf: ifgnore shader colors applied for 0 range.
R=vandebo@chromium.org
Review URL: https://codereview.chromium.org/23654044
git-svn-id: http://skia.googlecode.com/svn/trunk@11322 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/pdf/SkPDFShader.cpp b/src/pdf/SkPDFShader.cpp
index fa0587f..80ea2f2 100644
--- a/src/pdf/SkPDFShader.cpp
+++ b/src/pdf/SkPDFShader.cpp
@@ -55,6 +55,7 @@
*/
static void interpolateColorCode(SkScalar range, SkScalar* curColor,
SkScalar* prevColor, SkString* result) {
+ SkASSERT(range != SkIntToScalar(0));
static const int kColorComponents = 3;
// Figure out how to scale each color component.
@@ -152,7 +153,13 @@
result->append(" }\n");
// The gradient colors.
+ int gradients = 0;
for (int i = 1 ; i < info.fColorCount; i++) {
+ if (info.fColorOffsets[i] == info.fColorOffsets[i - 1]) {
+ continue;
+ }
+ gradients++;
+
result->append("{dup ");
result->appendScalar(info.fColorOffsets[i]);
result->append(" le {");
@@ -174,7 +181,7 @@
result->append(" ");
result->appendScalar(colorData[info.fColorCount - 1][2]);
- for (int i = 0 ; i < info.fColorCount; i++) {
+ for (int i = 0 ; i < gradients + 1; i++) {
result->append("} ifelse\n");
}
}