1 files changed, 77 insertions, 0 deletions
diff --git a/src/tsv.zig b/src/tsv.zig
new file mode 100644
index 0000000..9f15f2f
--- /dev/null
+++ b/src/tsv.zig
@@ -0,0 +1,77 @@
+const std = @import("std");
+const c = @import("c.zig");
+const gl = @import("gl.zig");
+const Output = @import("output.zig").Output;
+
+pub const TSVOutput = struct {
+    pub const Config = struct {
+        name: [:0]const u8,
+
+        pub const default: Config = .{
+            .name = "glsl-view",
+        };
+
+        pub fn create(
+            config: *const Config,
+            allocator: std.mem.Allocator,
+            constants: *gl.Constants,
+        ) *Output {
+            const self = allocator.create(TSVOutput) catch unreachable;
+
+            _ = c.gl_client_initialize_external_gl() or unreachable;
+
+            self.* = .{
+                .output = .{
+                    .update_fn = update,
+                    .destroy_fn = destroy,
+                },
+                .config = config,
+                .client = c.gl_client_new(c.VK_SERVER_DEFAULT_SOCKET_PATH, 1000) orelse unreachable,
+                .image_size = .{
+                    .top_left = .{ 0, 0 },
+                    .bottom_right = .{ constants.config.width, constants.config.height },
+                },
+            };
+
+            _ = c.gl_client_init_image(
+                self.client,
+                config.name,
+                @intCast(constants.config.width),
+                @intCast(constants.config.height),
+                c.R8G8B8A8,
+                true,
+            );
+
+            return &self.output;
+        }
+    };
+
+    output: Output,
+    config: *const Config,
+    client: *c.GlClient,
+    image_size: c.GlImageExtent,
+
+    fn update(output: *Output, texture_id: c.GLuint) bool {
+        const self: *TSVOutput = @fieldParentPtr("output", output);
+
+        var fbo: c.GLint = undefined;
+        c.glGetIntegerv(c.GL_DRAW_FRAMEBUFFER_BINDING, &fbo);
+
+        _ = c.gl_client_send_image(
+            self.client,
+            self.config.name,
+            texture_id,
+            c.GL_TEXTURE_2D,
+            false,
+            @intCast(fbo),
+            &self.image_size,
+        );
+        return false;
+    }
+
+    fn destroy(output: *Output, allocator: std.mem.Allocator) void {
+        const self: *TSVOutput = @fieldParentPtr("output", output);
+
+        allocator.destroy(self);
+    }
+};