void MainLoop(){
#if _WIN32
RunCuda();
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, m_pbo);
glBindTexture(GL_TEXTURE_2D, m_image);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, m_width, m_height, GL_RGBA,
GL_UNSIGNED_BYTE, NULL);
glClear(GL_COLOR_BUFFER_BIT);
// VAO, shader program, and texture already bound
glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, 0);
glutSwapBuffers();
#else
while(!glfwWindowShouldClose(m_window)){
glfwPollEvents();
RunCuda();
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, m_pbo);
glBindTexture(GL_TEXTURE_2D, m_image);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, m_width, m_height, GL_RGBA,
GL_UNSIGNED_BYTE, NULL);
glClear(GL_COLOR_BUFFER_BIT);
// VAO, shader program, and texture already bound
glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, 0);
glfwSwapBuffers(m_window);
}
glfwDestroyWindow(m_window);
glfwTerminate();
#endif
}
void Visual::Display()
{
//sdkStartTimer(&_timer);
// run CUDA kernel to generate vertex positions
RunCuda(&_vboResource);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// set view matrix
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glTranslatef(0.0, 0.0, _translateZ);
glRotatef(_rotateX, 1.0, 0.0, 0.0);
glRotatef(_rotateY, 0.0, 1.0, 0.0);
// render from the _vbo
glBindBuffer(GL_ARRAY_BUFFER, _vbo);
glVertexPointer(4, GL_FLOAT, 0, 0);
glEnableClientState(GL_VERTEX_ARRAY);
glColor3f(1.0, 0.0, 0.0);
glDrawArrays(GL_POINTS, 0, MeshWidth * MeshHeight);
glDisableClientState(GL_VERTEX_ARRAY);
glutSwapBuffers();
_anim += 0.01f;
//sdkStopTimer(&_timer);
ComputeFPS();
}
void Visual::Main()
{
// create VBO
CreateVBO(&_vbo, &_vboResource, cudaGraphicsMapFlagsWriteDiscard);
// run the cuda part
RunCuda(&_vboResource);
// start rendering mainloop
glutMainLoop();
}