mirror of
https://github.com/MaSzyna-EU07/maszyna.git
synced 2026-03-22 15:05:03 +01:00
86 lines
2.0 KiB
C++
86 lines
2.0 KiB
C++
#include "stdafx.h"
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#include "texturewindow.h"
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#include "application.h"
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#include "gl/shader.h"
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#include "gl/vao.h"
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void texture_window_fb_resize(GLFWwindow *win, int w, int h)
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{
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texture_window *texwindow = (texture_window*)glfwGetWindowUserPointer(win);
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texwindow->notify_window_size(w, h);
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}
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texture_window::texture_window(texture_handle src)
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{
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opengl_texture &tex = GfxRenderer.Texture(src);
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tex.create();
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m_source = tex.id;
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glfwWindowHint(GLFW_VISIBLE, GLFW_TRUE);
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GLFWwindow *root = Application.window();
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m_window = glfwCreateWindow(m_win_w, m_win_h, ("EU07: texture " + std::to_string(m_source)).c_str(), nullptr, root);
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glfwSetWindowUserPointer(m_window, this);
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glfwSetFramebufferSizeCallback(m_window, texture_window_fb_resize);
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glfwFocusWindow(root);
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m_renderthread = std::make_unique<std::thread>(&texture_window::threadfunc, this);
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}
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texture_window::~texture_window()
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{
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m_exit = true;
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m_renderthread->join();
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glfwDestroyWindow(m_window);
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}
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void texture_window::threadfunc()
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{
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glfwMakeContextCurrent(m_window);
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glfwSwapInterval(1);
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gl::shader vert("quad.vert");
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gl::shader frag("texturewindow.frag");
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gl::program shader(std::vector<std::reference_wrapper<const gl::shader>>({vert, frag}));
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gl::vao vao;
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glActiveTexture(GL_TEXTURE0);
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glBindTexture(GL_TEXTURE_2D, m_source);
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shader.bind();
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vao.bind();
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while (!m_exit)
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{
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// if texture resized, update window size (maybe not necessary?)
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if (GLAD_GL_VERSION_3_3 || GLAD_GL_ES_VERSION_3_1)
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{
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int w, h;
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glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_WIDTH, &w);
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glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_HEIGHT, &h);
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if (m_tex_w != w || m_tex_h != h)
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{
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m_tex_w = w;
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m_tex_h = h;
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m_win_w = w;
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m_win_h = h;
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glfwSetWindowSize(m_window, w, h); // eh, not thread-safe (but works?)
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}
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}
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glViewport(0, 0, m_win_w, m_win_h);
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
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glfwSwapBuffers(m_window);
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}
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}
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void texture_window::notify_window_size(int w, int h)
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{
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m_win_w = w;
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m_win_h = h;
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}
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