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Start on using CVMetalTextureCache

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This commit is contained in:
Nathan Sobo 2022-08-30 21:50:41 -06:00 • committed by Antonio Scandurra
parent 531ffc01c9
commit 37da841716
4 changed files with 129 additions and 5 deletions
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30
crates/gpui/src/platform/mac/renderer.rs
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@ -9,10 +9,13 @@ use crate::{
scene::{Glyph, Icon, Image, ImageGlyph, Layer, Quad, Scene, Shadow, Underline},
};
use cocoa::foundation::NSUInteger;
use core_foundation::base::TCFType;
use foreign_types::ForeignTypeRef;
use log::warn;
use media::core_video::{self, CVMetalTextureCache};
use metal::{MTLPixelFormat, MTLResourceOptions, NSRange};
use shaders::ToFloat2 as _;
use std::{collections::HashMap, ffi::c_void, iter::Peekable, mem, sync::Arc, vec};
use std::{collections::HashMap, ffi::c_void, iter::Peekable, mem, ptr, sync::Arc, vec};
const SHADERS_METALLIB: &[u8] = include_bytes!(concat!(env!("OUT_DIR"), "/shaders.metallib"));
const INSTANCE_BUFFER_SIZE: usize = 8192 * 1024; // This is an arbitrary decision. There's probably a more optimal value.
@ -29,6 +32,7 @@ pub struct Renderer {
underline_pipeline_state: metal::RenderPipelineState,
unit_vertices: metal::Buffer,
instances: metal::Buffer,
cv_texture_cache: core_video::CVMetalTextureCache,
}
struct PathSprite {
@ -39,7 +43,7 @@ struct PathSprite {
pub struct Surface {
pub bounds: RectF,
pub image_buffer: media::core_video::CVImageBuffer,
pub image_buffer: core_video::CVImageBuffer,
}
impl Renderer {
@ -128,6 +132,7 @@ impl Renderer {
"underline_fragment",
pixel_format,
);
let cv_texture_cache = CVMetalTextureCache::new(device.as_ptr());
Self {
sprite_cache,
image_cache,
@ -140,6 +145,7 @@ impl Renderer {
underline_pipeline_state,
unit_vertices,
instances,
cv_texture_cache,
}
}
@ -786,10 +792,26 @@ impl Renderer {
}
for surface in surfaces {
let origin = surface.bounds.origin() * scale_factor;
let target_size = surface.bounds.size() * scale_factor;
// let origin = surface.bounds.origin() * scale_factor;
// let target_size = surface.bounds.size() * scale_factor;
// let corner_radius = surface.corner_radius * scale_factor;
// let border_width = surface.border.width * scale_factor;
let width = surface.image_buffer.width();
let height = surface.image_buffer.height();
// We should add this method, but this return CVPixelFormatType and we need MTLPixelFormat
// I found at least one code example that manually maps them. Not sure what other options we have.
let pixel_format = surface.image_buffer.pixel_format_type();
let texture = self.cv_texture_cache.create_texture_from_image(
surface.image_buffer.as_concrete_TypeRef(),
ptr::null(),
pixel_format,
width,
height,
0,
);
}
// command_encoder.set_render_pipeline_state(&self.image_pipeline_state);