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https://github.com/ghostty-org/ghostty.git
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371d62a82c
This commit is very large, representing about a month of work with many interdependent changes that don't separate cleanly in to atomic commits. The main change here is unifying the renderer logic to a single generic renderer, implemented on top of an abstraction layer over OpenGL/Metal. I'll write a more complete summary of the changes in the description of the PR.
63 lines
1.5 KiB
Zig
63 lines
1.5 KiB
Zig
//! Represents a render target.
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//!
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//! In this case, an OpenGL renderbuffer-backed framebuffer.
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const Self = @This();
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const std = @import("std");
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const Allocator = std.mem.Allocator;
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const assert = std.debug.assert;
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const builtin = @import("builtin");
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const gl = @import("opengl");
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const log = std.log.scoped(.opengl);
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/// Options for initializing a Target
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pub const Options = struct {
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/// Desired width
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width: usize,
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/// Desired height
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height: usize,
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/// Internal format for the renderbuffer.
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internal_format: gl.Texture.InternalFormat,
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};
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/// The underlying `gl.Framebuffer` instance.
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framebuffer: gl.Framebuffer,
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/// The underlying `gl.Renderbuffer` instance.
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renderbuffer: gl.Renderbuffer,
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/// Current width of this target.
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width: usize,
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/// Current height of this target.
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height: usize,
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pub fn init(opts: Options) !Self {
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const rbo = try gl.Renderbuffer.create();
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const bound_rbo = try rbo.bind();
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defer bound_rbo.unbind();
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try bound_rbo.storage(
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opts.internal_format,
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@intCast(opts.width),
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@intCast(opts.height),
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);
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const fbo = try gl.Framebuffer.create();
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const bound_fbo = try fbo.bind(.framebuffer);
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defer bound_fbo.unbind();
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try bound_fbo.renderbuffer(.color0, rbo);
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return .{
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.framebuffer = fbo,
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.renderbuffer = rbo,
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.width = opts.width,
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.height = opts.height,
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};
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}
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pub fn deinit(self: *Self) void {
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self.framebuffer.destroy();
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self.renderbuffer.destroy();
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}
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