本文整理汇总了C++中GrDrawState::addCoverageProcessor方法的典型用法代码示例。如果您正苦于以下问题：C++ GrDrawState::addCoverageProcessor方法的具体用法？C++ GrDrawState::addCoverageProcessor怎么用？C++ GrDrawState::addCoverageProcessor使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类GrDrawState的用法示例。
在下文中一共展示了GrDrawState::addCoverageProcessor方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: DrawToTargetWithPathMask
void GrSWMaskHelper::DrawToTargetWithPathMask(GrTexture* texture,
GrDrawTarget* target,
const SkIRect& rect) {
GrDrawState* drawState = target->drawState();
GrDrawState::AutoViewMatrixRestore avmr;
if (!avmr.setIdentity(drawState)) {
return;
}
GrDrawState::AutoRestoreEffects are(drawState);
SkRect dstRect = SkRect::MakeLTRB(SK_Scalar1 * rect.fLeft,
SK_Scalar1 * rect.fTop,
SK_Scalar1 * rect.fRight,
SK_Scalar1 * rect.fBottom);
// We want to use device coords to compute the texture coordinates. We set our matrix to be
// equal to the view matrix followed by a translation so that the top-left of the device bounds
// maps to 0,0, and then a scaling matrix to normalized coords. We apply this matrix to the
// vertex positions rather than local coords.
SkMatrix maskMatrix;
maskMatrix.setIDiv(texture->width(), texture->height());
maskMatrix.preTranslate(SkIntToScalar(-rect.fLeft), SkIntToScalar(-rect.fTop));
maskMatrix.preConcat(drawState->getViewMatrix());
drawState->addCoverageProcessor(
GrSimpleTextureEffect::Create(texture,
maskMatrix,
GrTextureParams::kNone_FilterMode,
kPosition_GrCoordSet))->unref();
target->drawSimpleRect(dstRect);
}