void DrawKeyFrame(ref float[] mvpMatrix)
{
GL.Enable(EnableCap.Blend);
GL.BlendFunc(BlendingFactorSrc.SrcAlpha, BlendingFactorDest.OneMinusSrcAlpha);
GL.UseProgram(mKeyframe_Program_GL_ID);
RenderUtils.CheckGLError();
var vertexHandle = GL.GetAttribLocation(mKeyframe_Program_GL_ID, "vertexPosition");
var textureCoordHandle = GL.GetAttribLocation(mKeyframe_Program_GL_ID, "vertexTexCoord");
var mvpMatrixHandle = GL.GetUniformLocation(mKeyframe_Program_GL_ID, "modelViewProjectionMatrix");
var texSampler2DHandle = GL.GetUniformLocation(mKeyframe_Program_GL_ID, "texSampler2D");
RenderUtils.CheckGLError();
GL.VertexAttribPointer(vertexHandle, 3, VertexAttribPointerType.Float, false, 0, mVertices);
GL.VertexAttribPointer(textureCoordHandle, 2, VertexAttribPointerType.Float, false, 0, mTexCoords);
GL.EnableVertexAttribArray(vertexHandle);
GL.EnableVertexAttribArray(textureCoordHandle);
RenderUtils.CheckGLError();
GL.ActiveTexture(TextureUnit.Texture0);
GL.BindTexture(TextureTarget.Texture2D, mKeyframeTexture_GL_ID);
GL.Uniform1(texSampler2DHandle, 0);
RenderUtils.CheckGLError();
GL.Ext.PushGroupMarker(0, "Draw Pikkart KeyFrame");
GL.UniformMatrix4(mvpMatrixHandle, 1, false, mvpMatrix);
GL.DrawElements(BeginMode.Triangles, mIndices_Number, DrawElementsType.UnsignedShort, mIndex);
GL.Ext.PopGroupMarker();
RenderUtils.CheckGLError();
GL.DisableVertexAttribArray(vertexHandle);
GL.DisableVertexAttribArray(textureCoordHandle);
RenderUtils.CheckGLError();
GL.UseProgram(0);
GL.Disable(EnableCap.Blend);
RenderUtils.CheckGLError();
}
public bool InitMesh(string movieUrl, string keyFrameUrl, int seekPosition,
bool autoStart, PikkartVideoPlayer videoPlayerParam)
{
GenerateMesh();
if (videoPlayer == null)
{
videoPlayer = new PikkartVideoPlayer();
}
else
{
videoPlayer = videoPlayerParam;
}
CGSize dims = CGSize.Empty;
mMovieUrl = movieUrl;
mKeyframeTexture_GL_ID = RenderUtils.LoadTextureFromFileName(keyFrameUrl, out dims);
keyframeAspectRatio = (float)(dims.Height / dims.Width);
mSeekPosition = seekPosition;
mAutostart = autoStart;
string mediaBundlePath = NSBundle.MainBundle.BundlePath + "/media.bundle";
NSBundle mediaBundle = new NSBundle(mediaBundlePath);
mIconBusyTexture_GL_ID = RenderUtils.LoadTextureFromFileName(mediaBundle.PathForResource("busy", "png"));
mIconPlayTexture_GL_ID = RenderUtils.LoadTextureFromFileName(mediaBundle.PathForResource("play", "png"));
mIconErrorTexture_GL_ID = RenderUtils.LoadTextureFromFileName(mediaBundle.PathForResource("error", "png"));
mKeyframe_Program_GL_ID = RenderUtils.CreateProgram(VERTEX_SHADER, KEYFRAME_FRAGMENT_SHADER);
mVideo_Program_GL_ID = RenderUtils.CreateProgram(VERTEX_SHADER, VIDEO_FRAGMENT_SHADER);
mVideoTexture_GL_ID = RenderUtils.CreateVideoTexture();
if (mVideoTexture_GL_ID != 0)
{
videoPlayer.TextureHandle = mVideoTexture_GL_ID;
videoPlayer.Load(movieUrl, mAutostart, seekPosition);
}
return(true);
}
internal static int BuildTexture(demoImage image)
{
int texName = 0;
// Create a texture object to apply to model
unsafe {
GL.GenTextures(1, &texName);
GL.BindTexture(TextureTarget.Texture2D, texName);
// Set up filter and wrap modes for this texture object
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (float)All.Nearest);
// Allocate and load image data into texture
GL.TexImage2D(TextureTarget.Texture2D, 0, (PixelInternalFormat)image.format,
(int)image.width, (int)image.height, 0,
image.format, image.type, Marshal.UnsafeAddrOfPinnedArrayElement(image.data, 0));
RenderUtils.CheckGLError();
}
return(texName);
}
void DrawVideo(ref float[] mvpMatrix)
{
GL.UseProgram(mVideo_Program_GL_ID);
var vertexHandle = GL.GetAttribLocation(mVideo_Program_GL_ID, "vertexPosition");
var textureCoordHandle = GL.GetAttribLocation(mVideo_Program_GL_ID, "vertexTexCoord");
var mvpMatrixHandle = GL.GetUniformLocation(mVideo_Program_GL_ID, "modelViewProjectionMatrix");
var texSampler2DHandle = GL.GetUniformLocation(mVideo_Program_GL_ID, "texSamplerOES");
RenderUtils.CheckGLError();
GL.VertexAttribPointer(vertexHandle, 3, VertexAttribPointerType.Float, false, 0, mVertices);
GL.VertexAttribPointer(textureCoordHandle, 2, VertexAttribPointerType.Float, false, 0, videoTextureCoordsTransformed);
GL.EnableVertexAttribArray(vertexHandle);
GL.EnableVertexAttribArray(textureCoordHandle);
RenderUtils.CheckGLError();
GL.ActiveTexture(TextureUnit.Texture0);
GL.BindTexture(TextureTarget.Texture2D, mVideoTexture_GL_ID);
GL.Uniform1(texSampler2DHandle, 0);
RenderUtils.CheckGLError();
GL.UniformMatrix4(mvpMatrixHandle, 1, false, mvpMatrix);
// Render
GL.DrawElements(BeginMode.Triangles, mIndices_Number, DrawElementsType.UnsignedShort, mIndex);
RenderUtils.CheckGLError();
GL.UseProgram(0);
GL.DisableVertexAttribArray(vertexHandle);
GL.DisableVertexAttribArray(textureCoordHandle);
RenderUtils.CheckGLError();
}
public override void DrawInRect(GLKView view, CoreGraphics.CGRect rect)
{
if (!isActive())
{
return;
}
UIInterfaceOrientation orientation = UIApplication.SharedApplication.StatusBarOrientation;
CGSize size;
GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
if (firstGLUpdate == false)
{
ApplyCameraGlOrientation(orientation);
firstGLUpdate = true;
}
size = new CGSize(ViewportWidth, ViewportHeight);
RenderCamera(size, Angle);
if (isTracking())
{
if (CurrentMarker != null)
{
if (CurrentMarker.Id == "3_543")
{
float[] mvMatrix = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
float[] pMatrix = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
if (computeModelViewProjectionMatrix(ref mvMatrix, ref pMatrix))
{
_videoMesh.DrawMesh(ref mvMatrix, ref pMatrix);
RenderUtils.CheckGLError();
}
}
}
}
GL.Finish();
}
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();
}
}
}
void DrawIcon(ref float[] mvpMatrix, PikkartVideoPlayerBindingLibrary.PKTVIDEO_STATE status)
{
GL.Enable(EnableCap.Blend);
GL.BlendFunc(BlendingFactorSrc.SrcAlpha, BlendingFactorDest.OneMinusSrcAlpha);
GL.UseProgram(mKeyframe_Program_GL_ID);
RenderUtils.CheckGLError();
var vertexHandle = GL.GetAttribLocation(mKeyframe_Program_GL_ID, "vertexPosition");
var textureCoordHandle = GL.GetAttribLocation(mKeyframe_Program_GL_ID, "vertexTexCoord");
var mvpMatrixHandle = GL.GetUniformLocation(mKeyframe_Program_GL_ID, "modelViewProjectionMatrix");
var texSampler2DHandle = GL.GetUniformLocation(mKeyframe_Program_GL_ID, "texSampler2D");
GL.VertexAttribPointer(vertexHandle, 3, VertexAttribPointerType.Float, false, 0, mVertices);
GL.VertexAttribPointer(textureCoordHandle, 2, VertexAttribPointerType.Float, false, 0, mTexCoords);
RenderUtils.CheckGLError();
GL.EnableVertexAttribArray(vertexHandle);
GL.EnableVertexAttribArray(textureCoordHandle);
RenderUtils.CheckGLError();
GL.ActiveTexture(TextureUnit.Texture0);
switch ((long)status)
{
case 0: //end
GL.BindTexture(TextureTarget.Texture2D, mIconPlayTexture_GL_ID);
break;
case 1: //pasued
GL.BindTexture(TextureTarget.Texture2D, mIconPlayTexture_GL_ID);
break;
case 2: //stopped
GL.BindTexture(TextureTarget.Texture2D, mIconPlayTexture_GL_ID);
break;
case 3: //playing
GL.BindTexture(TextureTarget.Texture2D, mIconPlayTexture_GL_ID);
break;
case 4: //ready
GL.BindTexture(TextureTarget.Texture2D, mIconPlayTexture_GL_ID);
break;
case 5: //not ready
GL.BindTexture(TextureTarget.Texture2D, mIconBusyTexture_GL_ID);
break;
case 6: //buffering
GL.BindTexture(TextureTarget.Texture2D, mIconBusyTexture_GL_ID);
break;
case 7: //error
GL.BindTexture(TextureTarget.Texture2D, mIconErrorTexture_GL_ID);
break;
default:
GL.BindTexture(TextureTarget.Texture2D, mIconBusyTexture_GL_ID);
break;
}
RenderUtils.CheckGLError();
GL.Uniform1(texSampler2DHandle, 0);
GL.UniformMatrix4(mvpMatrixHandle, 1, false, mvpMatrix);
RenderUtils.CheckGLError();
GL.DrawElements(BeginMode.Triangles, mIndices_Number, DrawElementsType.UnsignedShort, mIndex);
RenderUtils.CheckGLError();
GL.UseProgram(0);
GL.Disable(EnableCap.Blend);
GL.DisableVertexAttribArray(vertexHandle);
GL.DisableVertexAttribArray(textureCoordHandle);
RenderUtils.CheckGLError();
}
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);
}
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);
}
