render-zig

commit 241edb630712713e8eec757b07da82c642f7e544
parent 63c3b62cc3757ced302c10113776441eb08cb824
Author: Christian Ermann <christianermann@gmail.com>
Date:   Mon, 22 Apr 2024 20:02:02 -0400

Add mach-glfw

Diffstat:
M
build.zig
 | 
6
++++++
M
build.zig.zon
 | 
34
++++------------------------------
M
src/main.zig
 | 
38
++++++++++++++++++++------------------

3 files changed, 30 insertions(+), 48 deletions(-)
diff --git a/build.zig b/build.zig
@@ -36,6 +36,12 @@ pub fn build(b: *std.Build) void {
         .optimize = optimize,
     });
 
+    const glfw_dep = b.dependency("mach-glfw", .{
+        .target = target,
+        .optimize = optimize,
+    });
+    exe.root_module.addImport("mach-glfw", glfw_dep.module("mach-glfw"));
+
     // This declares intent for the executable to be installed into the
     // standard location when the user invokes the "install" step (the default
     // step when running `zig build`).
diff --git a/build.zig.zon b/build.zig.zon
@@ -15,37 +15,11 @@
     // Once all dependencies are fetched, `zig build` no longer requires
     // internet connectivity.
     .dependencies = .{
-        // See `zig fetch --save <url>` for a command-line interface for adding dependencies.
-        //.example = .{
-        //    // When updating this field to a new URL, be sure to delete the corresponding
-        //    // `hash`, otherwise you are communicating that you expect to find the old hash at
-        //    // the new URL.
-        //    .url = "https://example.com/foo.tar.gz",
-        //
-        //    // This is computed from the file contents of the directory of files that is
-        //    // obtained after fetching `url` and applying the inclusion rules given by
-        //    // `paths`.
-        //    //
-        //    // This field is the source of truth; packages do not come from a `url`; they
-        //    // come from a `hash`. `url` is just one of many possible mirrors for how to
-        //    // obtain a package matching this `hash`.
-        //    //
-        //    // Uses the [multihash](https://multiformats.io/multihash/) format.
-        //    .hash = "...",
-        //
-        //    // When this is provided, the package is found in a directory relative to the
-        //    // build root. In this case the package's hash is irrelevant and therefore not
-        //    // computed. This field and `url` are mutually exclusive.
-        //    .path = "foo",
-        //},
+        .@"mach-glfw" = .{
+            .url = "https://pkg.machengine.org/mach-glfw/e57190c095097810980703aa26d4f0669a21dbab.tar.gz",
+            .hash = "12205a32c8e6ca23c68191b1e95405d2bd5f8e3055cba1c8ce0738d673ef49aef913",
+        },
     },
-
-    // Specifies the set of files and directories that are included in this package.
-    // Only files and directories listed here are included in the `hash` that
-    // is computed for this package.
-    // Paths are relative to the build root. Use the empty string (`""`) to refer to
-    // the build root itself.
-    // A directory listed here means that all files within, recursively, are included.
     .paths = .{
         // This makes *all* files, recursively, included in this package. It is generally
         // better to explicitly list the files and directories instead, to insure that
diff --git a/src/main.zig b/src/main.zig
@@ -1,24 +1,26 @@
 const std = @import("std");
+const glfw = @import("mach-glfw");
 
-pub fn main() !void {
-    // Prints to stderr (it's a shortcut based on `std.io.getStdErr()`)
-    std.debug.print("All your {s} are belong to us.\n", .{"codebase"});
-
-    // stdout is for the actual output of your application, for example if you
-    // are implementing gzip, then only the compressed bytes should be sent to
-    // stdout, not any debugging messages.
-    const stdout_file = std.io.getStdOut().writer();
-    var bw = std.io.bufferedWriter(stdout_file);
-    const stdout = bw.writer();
+fn errorCallback(error_code: glfw.ErrorCode, description: [:0]const u8) void {
+    std.log.err("glfw: {}: {s}\n", .{ error_code, description });
+}
 
-    try stdout.print("Run `zig build test` to run the tests.\n", .{});
+pub fn main() !void {
+    glfw.setErrorCallback(errorCallback);
+    if (!glfw.init(.{})) {
+        std.log.err("failed to initialize GLFW: {?s}", .{glfw.getErrorString()});
+        std.process.exit(1);
+    }
+    defer glfw.terminate();
 
-    try bw.flush(); // don't forget to flush!
-}
+    const window = glfw.Window.create(640, 480, "Hello, World!", null, null, .{}) orelse {
+        std.log.err("failed to create GLFW window: {?s}", .{glfw.getErrorString()});
+        std.process.exit(1);
+    };
+    defer window.destroy();
 
-test "simple test" {
-    var list = std.ArrayList(i32).init(std.testing.allocator);
-    defer list.deinit(); // try commenting this out and see if zig detects the memory leak!
-    try list.append(42);
-    try std.testing.expectEqual(@as(i32, 42), list.pop());
+    while (!window.shouldClose()) {
+        window.swapBuffers();
+        glfw.pollEvents();
+    }
 }