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2025-09-04 10:54:47 +08:00
commit 6bc8f61b18
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+/* Copyright (c) 2019-2022, Arm Limited and Contributors
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 the "License";
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "scene_graph/components/image/stb.h"
+
+#define STB_IMAGE_IMPLEMENTATION
+#include <stb_image.h>
+
+namespace vkb
+{
+namespace sg
+{
+Stb::Stb(const std::string &name, const std::vector<uint8_t> &data, ContentType content_type) :
+    Image{name}
+{
+	int width;
+	int height;
+	int comp;
+	int req_comp = 4;
+
+	auto data_buffer = reinterpret_cast<const stbi_uc *>(data.data());
+	auto data_size   = static_cast<int>(data.size());
+
+	auto raw_data = stbi_load_from_memory(data_buffer, data_size, &width, &height, &comp, req_comp);
+
+	if (!raw_data)
+	{
+		throw std::runtime_error{"Failed to load " + name + ": " + stbi_failure_reason()};
+	}
+
+	set_data(raw_data, width * height * req_comp);
+	stbi_image_free(raw_data);
+
+	set_format(content_type == Color ? VK_FORMAT_R8G8B8A8_SRGB : VK_FORMAT_R8G8B8A8_UNORM);
+	set_width(to_u32(width));
+	set_height(to_u32(height));
+	set_depth(1u);
+}
+
+}        // namespace sg
+}        // namespace vkb