bool computeProjectionMatrix(ref float[] mvpMatrix)
{
float w = 640, h = 480;
RenderUtils.MtxLoadIdentity(ref mvpMatrix);
float ar = (float)(ViewportHeight / ViewportWidth);
if (ViewportHeight > ViewportWidth)
{
ar = 1f / ar;
}
float h1 = h, w1 = w;
if (ar < h / w)
{
h1 = w * ar;
}
else
{
w1 = h / ar;
}
float a = 0, b = 0;
switch (Angle)
{
case 0:
a = 1; b = 0;
break;
case 90:
a = 0; b = 1;
break;
case 180:
a = -1; b = 0;
break;
case 270:
a = 0; b = -1;
break;
default: break;
}
float[] angleMatrix = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
angleMatrix[0] = a; angleMatrix[1] = b; angleMatrix[2] = 0; angleMatrix[3] = 0;
angleMatrix[4] = -b; angleMatrix[5] = a; angleMatrix[6] = 0; angleMatrix[7] = 0;
angleMatrix[8] = 0; angleMatrix[9] = 0; angleMatrix[10] = 1; angleMatrix[11] = 0;
angleMatrix[12] = 0; angleMatrix[13] = 0; angleMatrix[14] = 0; angleMatrix[15] = 1;
IntPtr tempPtr = IntPtr.Zero;
GetCurrentProjectionMatrix(ref tempPtr);
float[] projectionMatrix = new float[16];
Marshal.Copy(tempPtr, projectionMatrix, 0, 16);
projectionMatrix[5] = projectionMatrix[5] * (h / h1);
RenderUtils.MatrixMultiply(4, 4, ref angleMatrix, 4, 4, ref projectionMatrix, ref mvpMatrix);
return(false);
}
public void DrawMesh(ref float [] modelView, ref float[] projection)
{
var viewCtrl = _parentCtrl as RecognitionViewController;
if (viewCtrl != null)
{
var currentStatus = PKTVIDEO_STATE.NOT_READY;
if (mPikkartVideoPlayer != null)
{
currentStatus = mPikkartVideoPlayer.Status;
if (currentStatus == PKTVIDEO_STATE.PLAYING)
{
mPikkartVideoPlayer.UpdateVideoData();
videoAspectRatio = (float)(mPikkartVideoPlayer.Size.Height / mPikkartVideoPlayer.Size.Width);
}
}
PKTMarker currentMarker = viewCtrl.CurrentMarker;
if (currentMarker != null)
{
var markerSize = new CGSize(currentMarker.Width, currentMarker.Height);
GL.Enable(EnableCap.DepthTest);
GL.Disable(EnableCap.CullFace);
if ((currentStatus == PKTVIDEO_STATE.READY) ||
(currentStatus == PKTVIDEO_STATE.REACHED_END) ||
(currentStatus == PKTVIDEO_STATE.NOT_READY) ||
(currentStatus == PKTVIDEO_STATE.ERROR))
{
float[] scaleMatrix = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
RenderUtils.MtxLoadIdentity(ref scaleMatrix);
scaleMatrix[0] = (float)markerSize.Width;
scaleMatrix[5] = (float)(markerSize.Width * keyframeAspectRatio);
scaleMatrix[10] = (float)markerSize.Width;
float[] temp_mv = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
RenderUtils.MatrixMultiply(4, 4, ref modelView, 4, 4, ref scaleMatrix, ref temp_mv);
float[] temp_mvp = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
RenderUtils.MatrixMultiply(4, 4, ref projection, 4, 4, ref temp_mv, ref temp_mvp);
float[] mvpMatrix = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
RenderUtils.MtxTranspose(ref temp_mvp,
ref mvpMatrix);
DrawKeyFrame(ref mvpMatrix);
}
else
{
float[] scaleMatrix = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
RenderUtils.MtxLoadIdentity(ref scaleMatrix);
scaleMatrix[0] = (float)(markerSize.Width);
scaleMatrix[5] = (float)(markerSize.Width * videoAspectRatio);
scaleMatrix[10] = (float)(markerSize.Width);
float[] temp_mv = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
RenderUtils.MatrixMultiply(4, 4, ref modelView, 4, 4, ref scaleMatrix, ref temp_mv);
float[] temp_mvp = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
RenderUtils.MatrixMultiply(4, 4, ref projection, 4, 4, ref temp_mv, ref temp_mvp);
float[] mvpMatrix = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
RenderUtils.MtxTranspose(ref temp_mvp,
ref mvpMatrix);
DrawVideo(ref mvpMatrix);
}
if ((currentStatus == PKTVIDEO_STATE.READY) ||
(currentStatus == PKTVIDEO_STATE.REACHED_END) ||
(currentStatus == PKTVIDEO_STATE.PAUSED) ||
(currentStatus == PKTVIDEO_STATE.NOT_READY) ||
(currentStatus == PKTVIDEO_STATE.ERROR))
{
float[] translateMatrix = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
RenderUtils.MtxLoadIdentity(ref translateMatrix);
//scale a bit
translateMatrix[0] = 0.4f;
translateMatrix[5] = 0.4f;
translateMatrix[10] = 0.4f;
//translate a bit
translateMatrix[3] = 0;
translateMatrix[7] = 0.45f;
translateMatrix[11] = -0.05f;
float[] temp_mv = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
RenderUtils.MatrixMultiply(4, 4, ref modelView, 4, 4, ref translateMatrix, ref temp_mv);
float[] temp_mvp = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
RenderUtils.MatrixMultiply(4, 4, ref projection, 4, 4, ref temp_mv, ref temp_mvp);
float[] mvpMatrix = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
RenderUtils.MtxTranspose(ref temp_mvp,
ref mvpMatrix);
DrawIcon(ref mvpMatrix, currentStatus);
}
RenderUtils.CheckGLError();
}
}
}
bool computeModelViewProjectionMatrix(ref float[] mvpMatrix)
{
float w = 640f, h = 480f;
RenderUtils.MtxLoadIdentity(ref mvpMatrix);
float ar = (float)(ViewportHeight / ViewportWidth);
if (ViewportHeight > ViewportWidth)
{
ar = 1f / ar;
}
float h1 = h, w1 = w;
if (ar < h / w)
{
h1 = (float)(w * ar);
}
else
{
w1 = (float)(h / ar);
}
float a = 0, b = 0;
switch (Angle)
{
case 0:
a = 1; b = 0;
break;
case 90:
a = 0; b = 1;
break;
case 180:
a = -1; b = 0;
break;
case 270:
a = 0; b = -1;
break;
default: break;
}
float [] angleMatrix = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
angleMatrix[0] = a; angleMatrix[1] = b; angleMatrix[2] = 0; angleMatrix[3] = 0;
angleMatrix[4] = -b; angleMatrix[5] = a; angleMatrix[6] = 0; angleMatrix[7] = 0;
angleMatrix[8] = 0; angleMatrix[9] = 0; angleMatrix[10] = 1f; angleMatrix[11] = 0f;
angleMatrix[12] = 0f; angleMatrix[13] = 0f; angleMatrix[14] = 0f; angleMatrix[15] = 1f;
IntPtr tempPtr = IntPtr.Zero;
GetCurrentProjectionMatrix(ref tempPtr);
float[] projectionMatrix = new float[16];
Marshal.Copy(tempPtr, projectionMatrix, 0, 16);
projectionMatrix[5] = projectionMatrix[5] * (h / h1);
float[] correctedProjection = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
RenderUtils.MatrixMultiply(4, 4, ref angleMatrix, 4, 4, ref projectionMatrix, ref correctedProjection);
if (isTracking())
{
IntPtr modelviewMatrixPtr = IntPtr.Zero;
float[] temp_mvp = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
float[] modelviewMatrix = new float[16];
GetCurrentModelViewMatrix(ref modelviewMatrixPtr);
Marshal.Copy(modelviewMatrixPtr, modelviewMatrix, 0, 16);
RenderUtils.MatrixMultiply(4, 4, ref correctedProjection, 4, 4, ref modelviewMatrix, ref temp_mvp);
RenderUtils.MtxTranspose(ref temp_mvp, ref mvpMatrix);
return(true);
}
return(false);
}