LSD

Signed-off-by: Slendi <slendi@socopon.com>

src/DescriptorLayoutBuilder.cpp

@@ -0,0 +1,42 @@
+#include "DescriptorLayoutBuilder.h"
+
+#include "Util.h"
+
+namespace Lunar {
+
+auto DescriptorLayoutBuilder::add_binding(
+    uint32_t binding, VkDescriptorType type) -> DescriptorLayoutBuilder &
+{
+	VkDescriptorSetLayoutBinding b {};
+	b.binding = binding;
+	b.descriptorCount = 1;
+	b.descriptorType = type;
+
+	bindings.emplace_back(b);
+
+	return *this;
+}
+
+auto DescriptorLayoutBuilder::build(Logger &logger, VkDevice dev,
+    VkShaderStageFlags shader_stages, void *pNext,
+    VkDescriptorSetLayoutCreateFlags flags) -> VkDescriptorSetLayout
+{
+	for (auto &&b : bindings) {
+		b.stageFlags |= shader_stages;
+	}
+
+	VkDescriptorSetLayoutCreateInfo ci {};
+	ci.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
+	ci.pNext = pNext;
+
+	ci.pBindings = bindings.data();
+	ci.bindingCount = static_cast<uint32_t>(bindings.size());
+	ci.flags = flags;
+
+	VkDescriptorSetLayout set;
+	VK_CHECK(logger, vkCreateDescriptorSetLayout(dev, &ci, nullptr, &set));
+
+	return set;
+}
+
+} // namespace Lunar