Noesis and GLFW or other OpenGL window framework
Posted: 13 May 2017, 13:14
I am trying integrate Noesis in to GLFW. Documentation is different with OpenGL sample and then I try two projects.
I don't know if GLRenderDevice is need for render Noesis inside GLFW or not, this is reason why I create two projects.
1. Project which use GLRenderDevice.h and GLRenderDevice.cpp and GLFW. I succesfull render Button.xaml with it, without any interaction. Problem with it is when I close window, program crash. I think it is maybe bad written code (on my side).
Here is full source code:
2. Second project use
Then program crash before something render.
I don't know if GLRenderDevice is need for render Noesis inside GLFW or not, this is reason why I create two projects.
1. Project which use GLRenderDevice.h and GLRenderDevice.cpp and GLFW. I succesfull render Button.xaml with it, without any interaction. Problem with it is when I close window, program crash. I think it is maybe bad written code (on my side).
Here is full source code:
Code: Select all
#include <NoesisGUI.h>
#include <GLRenderDevice.h>
// GLFW
#include <GLFW\glfw3.h>
using namespace Noesis;
Ptr<Noesis::IView> xamlView;
static void error_callback(int error, const char * description) { fprintf(stderr, "Error: %s\n", description); }
static void key_callback(GLFWwindow* window, int key, int scancode, int action, int mods)
{
if (key == GLFW_KEY_ESCAPE && action == GLFW_PRESS)
glfwSetWindowShouldClose(window, GLFW_TRUE);
}
/// =========================================================================================
// Noesis GUI
/// =========================================================================================
void NoesisErrorHandler(const NsChar* filename, NsSize line, const NsChar* desc, NsBool fatal) { printf("\nERROR: %s\n\n", desc); }
void shutdown()
{
xamlView.Reset();
Noesis::GUI::Shutdown();
}
/// =========================================================================================
int main(int argc, char * argv[])
{
// GLFW
GLFWwindow * window = nullptr;
glfwSetErrorCallback(error_callback);
if (!glfwInit()) return -1;
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 2);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 1);
// GLFW
window = glfwCreateWindow(640, 480, "Noesis Button Test", NULL, NULL);
if (!window)
{
glfwTerminate();
return -1;
}
glfwMakeContextCurrent(window);
// USER
double mouse_x_pos, mouse_y_pos;
int windowWidth, windowHeight, bufWinWidth, bufWinHeight;
/// =========================================================================================
// Noesis GUI
/// =========================================================================================
Noesis::GUI::Init(NoesisErrorHandler);
Noesis::GUI::SetResourceProvider("");
Ptr<FrameworkElement> xaml = Noesis::GUI::LoadXaml<FrameworkElement>("Button.xaml");
xamlView = Noesis::GUI::CreateView(xaml.GetPtr());
xamlView->SetAntialiasingMode(Noesis::Gui::AntialiasingMode_MSAA);
Ptr<GLRenderDevice> device = *new GLRenderDevice();
Ptr<VGContext> context = Noesis::GUI::CreateVGContext(device.GetPtr(), Noesis::VGOptions());
xamlView->GetRenderer()->Init(context.GetPtr());
/// =========================================================================================
// Main Loop
while (!glfwWindowShouldClose(window))
{
// window and mouse data
glfwGetWindowSize(window, &windowWidth, &windowHeight);
glfwGetFramebufferSize(window, &bufWinWidth, &bufWinHeight);
glfwGetCursorPos(window, &mouse_x_pos, &mouse_y_pos);
// Noesis GUI
xamlView->Update(glfwGetTimerValue() / 1000.0f);
Noesis::IRenderer * nRender = xamlView->GetRenderer();
nRender->UpdateRenderTree();
if (nRender->NeedsOffscreen())
{
nRender->RenderOffscreen();
}
glViewport(0, 0, bufWinWidth, bufWinHeight);
glClear(GL_COLOR_BUFFER_BIT);
nRender->Render();
// GLFW
glfwSwapBuffers(window);
glfwPollEvents();
xamlView->SetSize(windowWidth, windowHeight);
}
shutdown();
glfwTerminate();
}Code: Select all
Ptr<RenderDevice> device;
// instead
Ptr<GLRenderDevice> device = *new GLRenderDevice();