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pdf: ifgnore shader colors applied for 0 range.

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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
This commit is contained in:
edisonn@google.com 2013-09-17 17:17:47 +00:00
parent 5e5239ed35
commit 8135323f70
1 changed files with 8 additions and 1 deletions
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9
src/pdf/SkPDFShader.cpp
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@ -55,6 +55,7 @@ static void unitToPointsMatrix(const SkPoint pts[2], SkMatrix* matrix) {
*/
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 @@ static void gradientFunctionCode(const SkShader::GradientInfo& info,
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 @@ static void gradientFunctionCode(const SkShader::GradientInfo& info,
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");
}
}