Function compile

src/resource/material_resource.cpp:350–445

	}

	s32 compile(CompileOptions &opts)
	{
		Buffer buf = opts.read();
		TempAllocator4096 ta;
		JsonObject obj(ta);
		RETURN_IF_ERROR(sjson::parse(obj, buf));

		Data data(default_allocator());
		Vector<StringView> defines(default_allocator());
		Vector<ShaderResource::Sampler> samplers_meta(default_allocator());
		Buffer shader_code(default_allocator());
		FileBuffer shader_fb(shader_code);
		StringView shader_name;
		StringId32 shader_id;
		DynamicString shader_library(ta);
		DynamicString shader(ta);

		RETURN_IF_ERROR(sjson::parse_string(shader, obj["shader"]));
		shader_name_defines(shader_name, defines, shader.c_str());

		s32 err = shader_compiler::compile_variant(shader_fb, &data.uniforms_meta, shader_library, shader_id, shader_name, defines, opts, true, &samplers_meta);
		ENSURE_OR_RETURN(MATERIAL_RESOURCE, err == 0, opts);
		opts.add_requirement("shader", shader_library.c_str());

		data.add_shader_uniforms();

		// Parse uniforms and textures.
		if (json_object::has(obj, "textures")) {
			err = parse_textures(data, obj["textures"], opts);
			ENSURE_OR_RETURN(MATERIAL_RESOURCE, err == 0, opts);
		}
		for (u32 i = 0; i < array::size(data.textures); ++i) {
			u32 si = 0;
			for (; si < vector::size(samplers_meta); ++si) {
				if (samplers_meta[si].name == data.textures[i].name._id)
					break;
			}

			if (si == vector::size(samplers_meta)) {
				logw(MATERIAL_RESOURCE
					, "Texture references inactive or unknown sampler '%s' in shader '%s'"
					, (char *)array::begin(data.names) + data.textures[i].sampler_name_offset
					, shader.c_str()
					);
			}
		}
		if (json_object::has(obj, "uniforms")) {
			err = parse_uniforms(data, obj["uniforms"], opts);
			ENSURE_OR_RETURN(MATERIAL_RESOURCE, err == 0, opts);
		}

		data.alloc_blob();

		MaterialResource mr;
		mr.version             = RESOURCE_HEADER(RESOURCE_VERSION_MATERIAL);
		mr.shader              = shader_id;
		mr.num_textures        = array::size(data.textures);
		mr.texture_data_offset = sizeof(mr);