Introduce pipeline, shader sketch

build.zig

@@ -21,6 +21,28 @@ pub fn build(b: *std.Build) void {
 
     const target = b.standardTargetOptions(.{});
     const optimize = b.standardOptimizeOption(.{});
+    const pipeline_debug = b.option(bool, "pipeline_debug", "Build asset pipeline in debug mode") orelse false;
+
+    const pipeline_mod = b.createModule(.{
+        .root_source_file = b.path("pipeline/main.zig"),
+        .target = b.graph.host,
+        .optimize = if (pipeline_debug) .Debug else .ReleaseSafe,
+    });
+
+    pipeline_mod.addImport("zstbi", zstbi.module("root"));
+
+    const pipeline = b.addExecutable(.{
+        .name = "pipeline",
+        .root_module = pipeline_mod,
+    });
+
+    pipeline.linkLibrary(zstbi.artifact("zstbi"));
+
+    const pipeline_cmd = b.addRunArtifact(pipeline);
+    pipeline_cmd.setCwd(b.path("."));
+
+    const pipeline_step = b.step("pipeline", "Run the asset pipeline");
+    pipeline_step.dependOn(&pipeline_cmd.step);
 
     const exe_mod = b.createModule(.{
         .root_source_file = b.path("src/main.zig"),