portersky
a4ef4adfc7
Added width/height tracking to the window class via a GLFW resize callback. The callback stores the current size and forwards it to a user-provided std::function. Added context::set_size() to update the GL viewport when the window is resized. Changed scene::render() to accept (int width, int height) parameters so scenes can compute the correct aspect ratio for their projection matrix instead of hardcoding 1280/720. Fixed parameter shadowing in resize_callback_impl (glfw_window instead of window).
53 lines
1.3 KiB
C++
53 lines
1.3 KiB
C++
#include <string_view>
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#define GLFW_INCLUDE_NONE
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#include "GLFW/glfw3.h"
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#include "fmt/std.h"
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#include "glad/glad.h"
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#include "cbt/opengl/context.hpp"
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namespace cbt::opengl {
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auto context::setup_gl() -> bool {
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if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress)) {
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fmt::print("Failed to initialize GLAD\n");
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return false;
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}
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print_info();
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return true;
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}
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auto context::print_info() -> void {
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fmt::print("OpenGL Info:\n");
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fmt::print(" vendor | {}\n", std::string_view(reinterpret_cast<char const*>(glGetString(GL_VENDOR))));
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fmt::print(" renderer| {}\n", std::string_view(reinterpret_cast<char const*>(glGetString(GL_RENDERER))));
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fmt::print(" version | {}\n", std::string_view(reinterpret_cast<char const*>(glGetString(GL_VERSION))));
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fmt::print(" glsl | {}\n", std::string_view(reinterpret_cast<char const*>(glGetString(GL_SHADING_LANGUAGE_VERSION))));
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fmt::print("\n");
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}
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context::context(window const& win) {
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glfwMakeContextCurrent(win.raw());
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if (!setup_gl()) {
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return;
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}
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m_valid = true;
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// Set initial viewport to match window size
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glViewport(0, 0, win.width(), win.height());
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}
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context::~context() {}
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auto context::valid() const -> bool {
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return m_valid;
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}
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auto context::set_size(int width, int height) -> void {
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glViewport(0, 0, width, height);
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}
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}
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