void GrGLConvolutionEffect::setData(const GrGLProgramDataManager& pdman,
const GrProcessor& processor) {
const GrConvolutionEffect& conv = processor.cast<GrConvolutionEffect>();
GrTexture& texture = *conv.texture(0);
// the code we generated was for a specific kernel radius
SkASSERT(conv.radius() == fRadius);
float imageIncrement[2] = { 0 };
float ySign = texture.origin() != kTopLeft_GrSurfaceOrigin ? 1.0f : -1.0f;
switch (conv.direction()) {
case Gr1DKernelEffect::kX_Direction:
imageIncrement[0] = 1.0f / texture.width();
break;
case Gr1DKernelEffect::kY_Direction:
imageIncrement[1] = ySign / texture.height();
break;
default:
SkFAIL("Unknown filter direction.");
}
pdman.set2fv(fImageIncrementUni, 1, imageIncrement);
if (conv.useBounds()) {
const float* bounds = conv.bounds();
if (Gr1DKernelEffect::kY_Direction == conv.direction() &&
texture.origin() != kTopLeft_GrSurfaceOrigin) {
pdman.set2f(fBoundsUni, 1.0f - bounds[1], 1.0f - bounds[0]);
} else {
pdman.set2f(fBoundsUni, bounds[0], bounds[1]);
}
}
pdman.set1fv(fKernelUni, this->width(), conv.kernel());
}
void GrGLBicubicEffect::onSetData(const GrGLProgramDataManager& pdman,
const GrProcessor& processor) {
const GrBicubicEffect& bicubicEffect = processor.cast<GrBicubicEffect>();
const GrTexture& texture = *processor.texture(0);
float imageIncrement[2];
imageIncrement[0] = 1.0f / texture.width();
imageIncrement[1] = 1.0f / texture.height();
pdman.set2fv(fImageIncrementUni, 1, imageIncrement);
pdman.setMatrix4f(fCoefficientsUni, bicubicEffect.coefficients());
fDomain.setData(pdman, bicubicEffect.domain(), texture.origin());
}
