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#include "core/window.h"
#include "core/assert.h"
#include "core/log.h"
#include <glad/gl.h>
#include <GLFW/glfw3.h>
namespace Hsdbg
{
namespace
{
constexpr int GL_VERSION_MAJOR = 3;
constexpr int GL_VERSION_MINOR = 3;
bool g_glad_loaded = false;
}
Window::Window(const WindowSpec& spec)
: m_title(spec.title)
, m_width(spec.width)
, m_height(spec.height)
{
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, GL_VERSION_MAJOR);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, GL_VERSION_MINOR);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GLFW_TRUE);
glfwWindowHint(GLFW_VISIBLE, GLFW_TRUE);
m_handle = glfwCreateWindow(static_cast<int>(m_width),
static_cast<int>(m_height),
m_title.c_str(),
nullptr,
nullptr);
HSDBG_ASSERT(m_handle != nullptr, "failed to create the glfw window");
glfwSetWindowUserPointer(m_handle, this);
glfwSetWindowSizeCallback(m_handle, on_window_size);
glfwSetFramebufferSizeCallback(m_handle, on_framebuffer_size);
make_context_current();
set_vsync(spec.vsync);
if (!g_glad_loaded)
{
const int version = gladLoadGL(glfwGetProcAddress);
HSDBG_ASSERT(version != 0, "failed to load the opengl function pointers");
g_glad_loaded = true;
Log::info("opengl {}.{}", GLAD_VERSION_MAJOR(version), GLAD_VERSION_MINOR(version));
Log::info(" vendor: {}", reinterpret_cast<const char*>(glGetString(GL_VENDOR)));
Log::info(" renderer: {}", reinterpret_cast<const char*>(glGetString(GL_RENDERER)));
Log::info(" version: {}", reinterpret_cast<const char*>(glGetString(GL_VERSION)));
}
int framebuffer_width = 0;
int framebuffer_height = 0;
glfwGetFramebufferSize(m_handle, &framebuffer_width, &framebuffer_height);
m_framebuffer_width = static_cast<uint32_t>(framebuffer_width);
m_framebuffer_height = static_cast<uint32_t>(framebuffer_height);
Log::info("window '{}' created at {}x{} ({}x{} framebuffer)",
m_title,
m_width,
m_height,
m_framebuffer_width,
m_framebuffer_height);
}
Window::~Window()
{
if (m_handle == nullptr)
return;
glfwDestroyWindow(m_handle);
m_handle = nullptr;
}
auto Window::should_close() const -> bool
{
return glfwWindowShouldClose(m_handle) == GLFW_TRUE;
}
auto Window::set_should_close(bool value) -> void
{
glfwSetWindowShouldClose(m_handle, value ? GLFW_TRUE : GLFW_FALSE);
}
auto Window::make_context_current() -> void
{
glfwMakeContextCurrent(m_handle);
}
auto Window::swap_buffers() -> void
{
glfwSwapBuffers(m_handle);
}
auto Window::set_vsync(bool enabled) -> void
{
glfwSwapInterval(enabled ? 1 : 0);
m_vsync = enabled;
}
auto Window::set_title(std::string_view window_title) -> void
{
m_title = window_title;
glfwSetWindowTitle(m_handle, m_title.c_str());
}
auto Window::is_minimized() const -> bool
{
return m_framebuffer_width == 0 || m_framebuffer_height == 0;
}
auto Window::on_window_size(GLFWwindow* handle, int width, int height) -> void
{
auto* window = static_cast<Window*>(glfwGetWindowUserPointer(handle));
if (window == nullptr)
return;
window->m_width = static_cast<uint32_t>(width);
window->m_height = static_cast<uint32_t>(height);
}
auto Window::on_framebuffer_size(GLFWwindow* handle, int width, int height) -> void
{
auto* window = static_cast<Window*>(glfwGetWindowUserPointer(handle));
if (window == nullptr)
return;
window->m_framebuffer_width = static_cast<uint32_t>(width);
window->m_framebuffer_height = static_cast<uint32_t>(height);
}
}
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