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metal: support multi-gpu systems via copying

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This commit is contained in:
Julian Orth 2022-11-13 21:07:32 +01:00
parent d43e7b345c
commit 28e91e0c5d
4 changed files with 167 additions and 80 deletions
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14
src/render/renderer/framebuffer.rs
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@ -2,7 +2,7 @@ use {
crate::{
cursor::Cursor,
fixed::Fixed,
format::{Format, XRGB8888},
format::{Format, ARGB8888, XRGB8888},
rect::Rect,
render::{
gl::{
@ -55,11 +55,15 @@ impl Framebuffer {
});
}
pub fn copy_texture(&self, state: &State, texture: &Texture, x: i32, y: i32) {
pub fn copy_texture(&self, state: &State, texture: &Texture, x: i32, y: i32, alpha: bool) {
let _ = self.ctx.ctx.with_current(|| {
unsafe {
glBindFramebuffer(GL_FRAMEBUFFER, self.gl.fbo);
glViewport(0, 0, self.gl.width, self.gl.height);
if alpha {
glClearColor(0.0, 0.0, 0.0, 0.0);
glClear(GL_COLOR_BUFFER_BIT);
}
glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
}
let scale = Scale::from_int(1);
@ -76,9 +80,13 @@ impl Framebuffer {
result: &mut RenderResult::default(),
logical_extents: Rect::new_sized(0, 0, self.gl.width, self.gl.height).unwrap(),
};
let format = match alpha {
true => ARGB8888,
false => XRGB8888,
};
renderer
.base
.render_texture(texture, x, y, XRGB8888, None, None, scale);
.render_texture(texture, x, y, format, None, None, scale);
unsafe {
glFlush();
}