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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.
76 lines
2.1 KiB
Zig
76 lines
2.1 KiB
Zig
//! Wrapper for handling render passes.
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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 Renderer = @import("../generic.zig").Renderer(OpenGL);
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const OpenGL = @import("../OpenGL.zig");
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const Target = @import("Target.zig");
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const Pipeline = @import("Pipeline.zig");
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const RenderPass = @import("RenderPass.zig");
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const Buffer = @import("buffer.zig").Buffer;
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const Health = @import("../../renderer.zig").Health;
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const log = std.log.scoped(.opengl);
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/// Options for beginning a frame.
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pub const Options = struct {};
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renderer: *Renderer,
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target: *Target,
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/// Begin encoding a frame.
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pub fn begin(
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opts: Options,
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/// Once the frame has been completed, the `frameCompleted` method
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/// on the renderer is called with the health status of the frame.
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renderer: *Renderer,
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/// The target is presented via the provided renderer's API when completed.
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target: *Target,
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) !Self {
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_ = opts;
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return .{
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.renderer = renderer,
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.target = target,
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};
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}
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/// Add a render pass to this frame with the provided attachments.
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/// Returns a RenderPass which allows render steps to be added.
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pub inline fn renderPass(
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self: *const Self,
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attachments: []const RenderPass.Options.Attachment,
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) RenderPass {
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_ = self;
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return RenderPass.begin(.{ .attachments = attachments });
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}
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/// Complete this frame and present the target.
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///
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/// If `sync` is true, this will block until the frame is presented.
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///
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/// NOTE: For OpenGL, `sync` is ignored and we always block.
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pub fn complete(self: *const Self, sync: bool) void {
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_ = sync;
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gl.finish();
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// If there are any GL errors, consider the frame unhealthy.
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const health: Health = if (gl.errors.getError()) .healthy else |_| .unhealthy;
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// If the frame is healthy, present it.
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if (health == .healthy) {
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self.renderer.api.present(self.target.*) catch |err| {
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log.err("Failed to present render target: err={}", .{err});
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};
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}
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// Report the health to the renderer.
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self.renderer.frameCompleted(health);
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}
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