int gpuInit(){
//initialize graphics and the camera
InitGraphics();
cout << "graphics initialized" << endl;
ytexture.CreateGreyScale(PIC_WIDTH/2,MAIN_TEXTURE_HEIGHT);
ytexture2.CreateGreyScale(PIC_WIDTH/2,MAIN_TEXTURE_HEIGHT);
greysobeltexture.CreateRGBA(PIC_WIDTH/2, MAIN_TEXTURE_HEIGHT);
greysobeltexture.GenerateFrameBuffer();
greysobeltexture2.CreateRGBA(PIC_WIDTH/2, MAIN_TEXTURE_HEIGHT);
greysobeltexture2.GenerateFrameBuffer();
mediantexture.CreateRGBA(PIC_WIDTH/2, MAIN_TEXTURE_HEIGHT);
mediantexture.GenerateFrameBuffer();
mediantexture2.CreateRGBA(PIC_WIDTH/2, MAIN_TEXTURE_HEIGHT);
mediantexture2.GenerateFrameBuffer();
background = imread("background.jpg");
if (background.empty()){
cout << "reference image not found" << endl;
return LOAD_ERROR;
}
int imgSize = background.total();
//Allocate buffers for pixel Data and U and V fillings
//Needs "zeros" to fill YUV image
pixelData = new uchar[imgSize/2];
pixelData2 = new uchar[imgSize/2];
zeros = new uchar[imgSize];
for(int i =0; i < background.rows; i++)
for(int j = 0; j < background.cols; j++){
zeros[background.cols*i + j] = 125;
}
//Fixes bit allignment problems
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glPixelStorei(GL_PACK_ALIGNMENT, 1);
//Allocate output pixel data
output1 = malloc(greysobeltexture.GetWidth()*greysobeltexture.GetHeight()*4);
output2 = malloc(greysobeltexture.GetWidth()*greysobeltexture.GetHeight()*4);
return 0;
}
void init_opengl_fcns ()
{
cout << " Initializing OpenGL Graphics Library"<<endl;
// <------------------------------------------------ Generate textures for image processing in OpenGL ---------------------------------------------->
ytexture.CreateGreyScale(MAIN_TEXTURE_WIDTH,MAIN_TEXTURE_HEIGHT);
utexture.CreateGreyScale(MAIN_TEXTURE_WIDTH/2,MAIN_TEXTURE_HEIGHT/2);
vtexture.CreateGreyScale(MAIN_TEXTURE_WIDTH/2,MAIN_TEXTURE_HEIGHT/2);
hsv.CreateRGBA(MAIN_TEXTURE_WIDTH/2,MAIN_TEXTURE_HEIGHT/2);
hsv.GenerateFrameBuffer();
gray.CreateRGBA(MAIN_TEXTURE_WIDTH/2,MAIN_TEXTURE_HEIGHT/2);
gray.GenerateFrameBuffer();
tex.CreateRGBA(MAIN_TEXTURE_WIDTH/2,MAIN_TEXTURE_HEIGHT/2);
tex.GenerateFrameBuffer();
lab.CreateRGBA(MAIN_TEXTURE_WIDTH/2,MAIN_TEXTURE_HEIGHT/2);
lab.GenerateFrameBuffer();
kernel.CreateRGBA(MAIN_TEXTURE_WIDTH/2,MAIN_TEXTURE_HEIGHT/2);
kernel.GenerateFrameBuffer();
kernelx.CreateRGBA(MAIN_TEXTURE_WIDTH/2,MAIN_TEXTURE_HEIGHT/2);
kernelx.GenerateFrameBuffer();
kernely.CreateRGBA(MAIN_TEXTURE_WIDTH/2,MAIN_TEXTURE_HEIGHT/2);
kernely.GenerateFrameBuffer();
laplacian.CreateRGBA(MAIN_TEXTURE_WIDTH/2,MAIN_TEXTURE_HEIGHT/2);
laplacian.GenerateFrameBuffer();
undistort_img.CreateRGBA(MAIN_TEXTURE_WIDTH/2,MAIN_TEXTURE_HEIGHT/2);
undistort_img.GenerateFrameBuffer();
cout<<"Completed initializing OpenGL Graphics"<<endl<<endl;
}
