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Add option to use zig shaders

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This commit is contained in:
Ali Cheraghi
2025-04-24 18:05:50 +03:30
parent 42e7a8409b
commit 7b7adcd206
3 changed files with 85 additions and 20 deletions
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73
examples/build.zig
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@@ -6,6 +6,7 @@ pub fn build(b: *std.Build) void {
const target = b.standardTargetOptions(.{});
const optimize = b.standardOptimizeOption(.{});
const maybe_override_registry = b.option([]const u8, "override-registry", "Override the path to the Vulkan registry used for the examples");
const use_zig_shaders = b.option(bool, "zig-shader", "Use Zig shaders instead of GLSL") orelse false;
const registry = b.dependency("vulkan_headers", .{}).path("registry/vk.xml");
@@ -30,27 +31,59 @@ pub fn build(b: *std.Build) void {
triangle_exe.root_module.addImport("vulkan", vulkan);
const vert_cmd = b.addSystemCommand(&.{
"glslc",
"--target-env=vulkan1.2",
"-o",
});
const vert_spv = vert_cmd.addOutputFileArg("vert.spv");
vert_cmd.addFileArg(b.path("shaders/triangle.vert"));
triangle_exe.root_module.addAnonymousImport("vertex_shader", .{
.root_source_file = vert_spv,
});
if (use_zig_shaders) {
const spirv_target = b.resolveTargetQuery(.{
.cpu_arch = .spirv64,
.os_tag = .vulkan,
.cpu_model = .{ .explicit = &std.Target.spirv.cpu.vulkan_v1_2 },
.cpu_features_add = std.Target.spirv.featureSet(&.{.int64}),
.ofmt = .spirv,
});
const frag_cmd = b.addSystemCommand(&.{
"glslc",
"--target-env=vulkan1.2",
"-o",
});
const frag_spv = frag_cmd.addOutputFileArg("frag.spv");
frag_cmd.addFileArg(b.path("shaders/triangle.frag"));
triangle_exe.root_module.addAnonymousImport("fragment_shader", .{
.root_source_file = frag_spv,
});
const vert_spv = b.addObject(.{
.name = "vertex_shader",
.root_source_file = b.path("shaders/vertex.zig"),
.target = spirv_target,
.use_llvm = false,
});
triangle_exe.root_module.addAnonymousImport(
"vertex_shader",
.{ .root_source_file = vert_spv.getEmittedBin() },
);
const frag_spv = b.addObject(.{
.name = "fragment_shader",
.root_source_file = b.path("shaders/fragment.zig"),
.target = spirv_target,
.use_llvm = false,
});
triangle_exe.root_module.addAnonymousImport(
"fragment_shader",
.{ .root_source_file = frag_spv.getEmittedBin() },
);
} else {
const vert_cmd = b.addSystemCommand(&.{
"glslc",
"--target-env=vulkan1.2",
"-o",
});
const vert_spv = vert_cmd.addOutputFileArg("vert.spv");
vert_cmd.addFileArg(b.path("shaders/triangle.vert"));
triangle_exe.root_module.addAnonymousImport("vertex_shader", .{
.root_source_file = vert_spv,
});
const frag_cmd = b.addSystemCommand(&.{
"glslc",
"--target-env=vulkan1.2",
"-o",
});
const frag_spv = frag_cmd.addOutputFileArg("frag.spv");
frag_cmd.addFileArg(b.path("shaders/triangle.frag"));
triangle_exe.root_module.addAnonymousImport("fragment_shader", .{
.root_source_file = frag_spv,
});
}
const triangle_run_cmd = b.addRunArtifact(triangle_exe);
triangle_run_cmd.step.dependOn(b.getInstallStep());