Size PureProjection::GetTileMatrixSizeXY(const int &zoom)
{
Size sMin = GetTileMatrixMinXY(zoom);
Size sMax = GetTileMatrixMaxXY(zoom);
return Size(sMax.Width() - sMin.Width() + 1, sMax.Height() - sMin.Height() + 1);
}
void WindowManager::MapCoords(unsigned int& x, unsigned int& y)
{
Size windowSize = m_spRootWindow->GetSize();
// translate to window coords
x = static_cast<unsigned int>((double(windowSize.Width()) / m_screenSize.Width()) * x);
y = static_cast<unsigned int>((double(windowSize.Height()) / m_screenSize.Height()) * y);
}
void TextTexture::UpdateText(Font& font,
const CString& cszText, const Size& s, T_enTextAlignment enTextAlignment,
Color cForeground, Color cBackground)
{
unsigned int uiLenPx = font.MeasureString(cszText);
unsigned int uiPosX = 0;
if (enTextAlignment == textAlignCenter)
uiPosX = uiLenPx < unsigned(s.Width()) ? (unsigned(s.Width()) - uiLenPx) / 2 : 0;
unsigned int uiPosY = font.Height() < unsigned(s.Height()) ? (unsigned(s.Height()) - font.Height()) / 2 : 0;
Bitmap bmp(s.Width(), s.Height(), cBackground);
font.Write(cszText, bmp, uiPosX, uiPosY, cForeground, cBackground);
if (m_tex.Id() == 0)
m_tex.Generate();
m_tex.Upload(bmp, false);
}
internals::PointLatLng MercatorProjection::FromPixelToLatLng(const int &x, const int &y, const int &zoom)
{
internals::PointLatLng ret;// = internals::PointLatLng.Empty;
Size s = GetTileMatrixSizePixel(zoom);
double mapSizeX = s.Width();
double mapSizeY = s.Height();
double xx = (Clip(x, 0, mapSizeX - 1) / mapSizeX) - 0.5;
double yy = 0.5 - (Clip(y, 0, mapSizeY - 1) / mapSizeY);
ret.SetLat(90 - 360 * atan(exp(-yy * 2 * M_PI)) / M_PI);
ret.SetLng(360 * xx);
return ret;
}
/**
* @brief MercatorProjection::FromPixelToLatLng Referenced from top-left of globe, so the lat-lon (0,0), i.e. the intersection of the equator and prime meridian, would be [1<<(zoom-1), 1<<(zoom-1)]
* @param x Horizontal location in [pixels], referenced from left edge of global map
* @param y Vertical location in [pixels], referenced from top edge of global map
* @param zoom
* @return Latitude and Longitude in [degrees]
*/
internals::PointLatLng MercatorProjection::FromPixelToLatLng(const qint64 &x,const qint64 &y,const int &zoom)
{
internals::PointLatLng ret;// = internals::PointLatLng.Empty;
Size s = GetTileMatrixSizePixel(zoom);
double mapSizeX = s.Width();
double mapSizeY = s.Height();
//Calculate the percentage distance between top and bottom, and left and right
double xx = (bound(x, 0, mapSizeX - 1) / mapSizeX) - 0.5;
double yy = 0.5 - (bound(y, 0, mapSizeY - 1) / mapSizeY);
ret.SetLat(90 - 360 * atan(exp(-yy * 2 * M_PI)) / M_PI);
ret.SetLng(360 * xx);
return ret;
}
void WindowManager::Render()
{
// setup orthogonal projection
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
Size s = m_spRootWindow->GetSize();
gluOrtho2D(0, s.Width(), s.Height(), 0);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
// set states
glDisable(GL_DEPTH_TEST);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_LIGHTING);
// set up texturing
glEnable(GL_TEXTURE_2D);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glColor3ub(255, 255, 255);
// render root window; all child windows are rendered recursively
Rect rectArea(Point(0,0), m_spRootWindow->GetSize());
m_spRootWindow->Render(rectArea);
// restore previous projection
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
glPopMatrix();
glDisable(GL_BLEND);
glEnable(GL_DEPTH_TEST);
glDisable(GL_TEXTURE_2D);
}
Point MercatorProjection::FromLatLngToPixel(double lat, double lng, const int &zoom)
{
Point ret;// = Point.Empty;
lat = Clip(lat, MinLatitude, MaxLatitude);
lng = Clip(lng, MinLongitude, MaxLongitude);
double x = (lng + 180) / 360;
double sinLatitude = sin(lat * M_PI / 180);
double y = 0.5 - log((1 + sinLatitude) / (1 - sinLatitude)) / (4 * M_PI);
Size s = GetTileMatrixSizePixel(zoom);
int mapSizeX = s.Width();
int mapSizeY = s.Height();
ret.SetX((int) Clip(x * mapSizeX + 0.5, 0, mapSizeX - 1));
ret.SetY((int) Clip(y * mapSizeY + 0.5, 0, mapSizeY - 1));
return ret;
}
void Checkbox::UpdateTexture() throw()
{
try
{
Font& font = GetFont();
Size s = GetSize();
int iOffset = int(s.Height() * 1.1);
s.Width(s.Width() - iOffset);
CString cszText = GetAttr(CheckboxAttr::Text);
Color cText = GetAttrAsColor(CheckboxAttr::Color);
Color cBack = GetAttrAsColor(CheckboxAttr::BackColor);
m_text.UpdateText(font, cszText, s, TextTexture::textAlignLeft, cText, cBack);
}
catch (...)
{
}
}
Size PureProjection::GetTileMatrixSizePixel(const int &zoom)
{
Size s = GetTileMatrixSizeXY(zoom);
return Size(s.Width() * TileSize().Width(), s.Height() * TileSize().Height());
}
int PureProjection::GetTileMatrixItemCount(const int &zoom)
{
Size s = GetTileMatrixSizeXY(zoom);
return (s.Width() * s.Height());
}
Point::Point(Size sz)
{
this->x=sz.Width();
this->y=sz.Height();
empty=false;
}
void MediaDispatcherImpl::OnVideoDecode(VideoDecodeEventArgs const& e)
{
VideoSource const& s = e.Source();
int32 channel = s.Channel();
if (mNeedWaitI[channel])
{
if (s.Type() == VideoType_H264_IFrame)
mNeedWaitI[channel] = false;
else
return;
}
if (mVideoMode[channel].Width() != s.Width() || mVideoMode[channel].Height() != s.Height())
{
mVideoMode[channel] = Size(s.Width(), s.Height());
DisposeVideoDecoder(channel);
}
JNIEnv* env = GetJNIEnvAttachThread();
if (mVideoDecoder[channel] == NULL)
CreateVideoDecoder(env, channel, s.Width(), s.Height()); // create decoder and buffer
jintArray outputSize = env->NewIntArray(3);
jint* _outputSize = env->GetIntArrayElements(outputSize, 0);
//
jobjectArray videoBuffer2d = env->CallObjectMethod(mObject, methods.MediaDispatcher_GetVideoBuffer, channel);
jbyteArray y = (jbyteArray) env->GetObjectArrayElement(videoBuffer2d, (jsize) 0);
jbyteArray u = (jbyteArray) env->GetObjectArrayElement(videoBuffer2d, (jsize) 1);
jbyteArray v = (jbyteArray) env->GetObjectArrayElement(videoBuffer2d, (jsize) 2);
jbyte* _y = env->GetByteArrayElements(y, 0); // not copy array
jbyte* _u = env->GetByteArrayElements(u, 0); // not copy array
jbyte* _v = env->GetByteArrayElements(v, 0); // not copy array
byte* output[3] = { (byte*) _y, (byte*) _u, (byte*) _v };
//
Size resolution;
Thickness cropped;
if (mVideoDecoder[channel]->Decode(s.Buffer(), s.BufferLength(), VideoPixelFormat_I420, output, _outputSize, resolution, cropped))
{
int32 dstW = resolution.Width() - cropped.Left() - cropped.Right();
int32 dstH = resolution.Height() - cropped.Top() - cropped.Bottom();
env->CallVoidMethod(mObject, methods.VideoFrameDecodedListener_OnVideoOneFrameDecoded, channel,
dstW, dstH, outputSize, VideoPixelFormat_I420, cropped.Left(), cropped.Top());
}
else
{
LOGE("decode error: %d", channel);
}
env->ReleaseByteArrayElements(y, _y, 0);
env->ReleaseByteArrayElements(u, _u, 0);
env->ReleaseByteArrayElements(v, _v, 0);
env->DeleteLocalRef(y);
env->DeleteLocalRef(u);
env->DeleteLocalRef(v);
env->DeleteLocalRef(videoBuffer2d);
env->ReleaseIntArrayElements(outputSize, _outputSize, 0); // mode: copy back the content and free the elems buffer
// MUST to free the elems buffer, because elems buffer holds
// a local reference, which needs to delete
env->DeleteLocalRef(outputSize);
JNIEnvDeattachThread();
}
