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gl: fix hello triangle

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This commit is contained in:
chyyran 2022-11-24 02:08:00 -05:00
parent dadfb6ba33
commit f6a862339c
1 changed files with 24 additions and 26 deletions
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50
librashader-runtime-gl/src/hello_triangle.rs
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@ -12,7 +12,7 @@ use crate::framebuffer::{Framebuffer, GlImage, Viewport};
const WIDTH: u32 = 900;
const HEIGHT: u32 = 700;
const TITLE: &str = "librashader OpenGL";
const TITLE: &str = "Hello From OpenGL World!";
pub fn compile_program(vertex: &str, fragment: &str) -> GLuint {
let vertex_shader = unsafe { gl::CreateShader(gl::VERTEX_SHADER) };
@ -459,20 +459,18 @@ void main()
gl::GenVertexArrays(1, &mut quad_vao);
}
let (fb_width, fb_height) = window.get_framebuffer_size();
let (vp_width, vp_height) = window.get_size();
let output = Framebuffer::new_from_raw(
output_texture,
output_framebuffer_handle,
gl::RGBA8,
Size::new(vp_width as u32, vp_height as u32),
1,
);
while !window.should_close() {
let (vp_width, vp_height) = window.get_size();
let (fb_width, fb_height) = window.get_framebuffer_size();
let output = Framebuffer::new_from_raw(
output_texture,
output_framebuffer_handle,
gl::RGBA8,
Size::new(vp_width as u32, vp_height as u32),
1,
);
glfw.poll_events();
for (_, event) in glfw::flush_messages(&events) {
glfw_handle_event(&mut window, event);
@ -521,19 +519,19 @@ void main()
filter.frame(framecount, &viewport, &rendered, false)
.unwrap();
//
// unsafe {
// // texture is done now.
// // draw quad to screen
// gl::BindFramebuffer(gl::FRAMEBUFFER, 0);
// gl::UseProgram(quad_programid);
//
// gl::ActiveTexture(gl::TEXTURE0);
// gl::BindTexture(gl::TEXTURE_2D, output_texture);
//
// gl::BindVertexArray(quad_vao);
// gl::DrawArrays(gl::TRIANGLE_STRIP, 0, 4);
// }
unsafe {
// texture is done now.
// draw quad to screen
gl::BindFramebuffer(gl::FRAMEBUFFER, 0);
gl::UseProgram(quad_programid);
gl::ActiveTexture(gl::TEXTURE0);
gl::BindTexture(gl::TEXTURE_2D, output_texture);
gl::BindVertexArray(quad_vao);
gl::DrawArrays(gl::TRIANGLE_STRIP, 0, 4);
}
framecount += 1;
window.swap_buffers();
@ -564,4 +562,4 @@ fn glfw_handle_event(window: &mut glfw::Window, event: glfw::WindowEvent) {
Event::Size(width, height) => window.set_size(width, height),
_ => {}
}
}
}