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Code Issues 121 Wiki Activity

rendering python to individual windows

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This commit is contained in:
milek7
2018-10-25 18:07:43 +02:00
parent 9f5a88a2fc
commit fbcd933d56
8 changed files with 137 additions and 5 deletions
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81
texturewindow.cpp Normal file
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#include "stdafx.h"
#include "texturewindow.h"
#include "application.h"
#include "gl/shader.h"
#include "gl/vao.h"
void texture_window_fb_resize(GLFWwindow *win, int w, int h)
{
texture_window *texwindow = (texture_window*)glfwGetWindowUserPointer(win);
texwindow->notify_window_size(w, h);
}
texture_window::texture_window(texture_handle src)
{
opengl_texture &tex = GfxRenderer.Texture(src);
tex.create();
m_source = tex.id;
glfwWindowHint(GLFW_VISIBLE, GLFW_TRUE);
GLFWwindow *root = Application.window();
m_window = glfwCreateWindow(m_win_w, m_win_h, ("EU07: texture " + std::to_string(m_source)).c_str(), nullptr, root);
glfwSetWindowUserPointer(m_window, this);
glfwSetFramebufferSizeCallback(m_window, texture_window_fb_resize);
glfwFocusWindow(root);
m_renderthread = std::make_unique<std::thread>(&texture_window::threadfunc, this);
}
texture_window::~texture_window()
{
m_exit = true;
m_renderthread->join();
glfwDestroyWindow(m_window);
}
void texture_window::threadfunc()
{
glfwMakeContextCurrent(m_window);
glfwSwapInterval(1);
gl::shader vert("quad.vert");
gl::shader frag("texturewindow.frag");
gl::program shader(std::vector<std::reference_wrapper<const gl::shader>>({vert, frag}));
gl::vao vao;
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, m_source);
shader.bind();
vao.bind();
while (!m_exit)
{
int w, h;
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_WIDTH, &w);
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_HEIGHT, &h);
if (m_tex_w != w || m_tex_h != h)
{
m_tex_w = w;
m_tex_h = h;
m_win_w = w;
m_win_h = h;
glfwSetWindowSize(m_window, w, h); // eh, not thread-safe (but works?)
}
glViewport(0, 0, m_win_w, m_win_h);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
glfwSwapBuffers(m_window);
}
}
void texture_window::notify_window_size(int w, int h)
{
m_win_w = w;
m_win_h = h;
}