void nuiRect::RoundToZero()
{
mLeft = (nuiSize)ToZero(mLeft );
mRight = (nuiSize)ToZero(mRight );
mTop = (nuiSize)ToZero(mTop );
mBottom = (nuiSize)ToZero(mBottom);
}
void nuiGLDrawContext::BlurRect(const nuiRect& rRect, uint Strength)
{
nuiRect Rect = rRect;
if (mClippingRect.mEnabled)
Rect.Intersect(mClippingRect,rRect);
nuiRect size = Rect.Size();
nuiTexture* pScratchPad = GetScratchPad(ToZero(size.GetWidth()), ToZero(size.GetHeight()));
if (!pScratchPad)
return;
SetTexture(pScratchPad);
glPushMatrix();
glLoadIdentity();
EnableBlending(true);
EnableTexture2D(true);
SetBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
do
{
glCopyTexSubImage2D(
GL_TEXTURE_2D, 0,
0, 0,
ToZero(rRect.mLeft), ToZero(mHeight) - 1 - ToZero(rRect.mTop) - ToZero(rRect.GetHeight()),
ToZero(rRect.GetWidth()), ToZero(rRect.GetHeight())
);
SetFillColor(nuiColor(1,1,1,.15f));
nuiRect rect = Rect;
rect.Move(-1,-1);
DrawImage(rect,size);
rect.Move(1,0);
DrawImage(rect,size);
rect.Move(1,0);
DrawImage(rect,size);
rect.Move(-2,1);
DrawImage(rect,size);
rect.Move(1,0);
DrawImage(rect,size);
rect.Move(1,0);
DrawImage(rect,size);
rect.Move(-2,1);
DrawImage(rect,size);
rect.Move(0,1);
DrawImage(rect,size);
rect.Move(0,1);
DrawImage(rect,size);
} while ((long)(Strength--) > 0);
EnableBlending(false);
EnableTexture2D(false);
glPopMatrix();
}
void Matrix4::ToIdentity() {
ToZero();
values[0] = 1.0f;
values[5] = 1.0f;
values[10] = 1.0f;
values[15] = 1.0f;
}
void
VarioSynthesiser::Synthesise(int16_t *buffer, size_t n)
{
mutex.lock();
assert(audible_count > 0 || silence_count > 0);
if (silence_count == 0 || beep_file >= 0) {
/* magic value for "continuous tone" */
ToneSynthesiser::Synthesise(buffer, n);
mutex.unlock();
return;
}
while (n > 0) {
if (audible_remaining > 0) {
/* generate a period of audible tone */
unsigned o = silence_count > 0
? std::min(n, audible_remaining)
: n;
ToneSynthesiser::Synthesise(buffer, o);
buffer += o;
n -= o;
audible_remaining -= o;
if (audible_remaining == 0 && silence_remaining > 0) {
/* finish the current sine wave to avoid clicking noise */
audible_remaining = ToZero();
if (audible_remaining == 0)
/* finished, we can now emit a period of silence */
Restart();
}
} else if (silence_remaining > 0) {
/* generate a period of silence (climbing) */
unsigned o = audible_count > 0
? std::min(n, silence_remaining)
: n;
/* the "silence" PCM sample value is zero */
std::fill(buffer, buffer + o, 0);
buffer += o;
n -= o;
silence_remaining -= o;
} else {
/* period finished, begin next one */
audible_remaining = audible_count;
silence_remaining = silence_count;
}
}
mutex.unlock();
}
