Vk: add a ShaderStages enum set.

Will be needed by descriptor sets.

doc/vulkan-mapping.dox

@@ -971,7 +971,7 @@ Vulkan enum                             | Matching API
 @type_vk{ShaderFloatControlsIndependence} @m_class{m-label m-flat m-success} **KHR, 1.2** | |
 @type_vk{ShaderGroupShaderKHR} @m_class{m-label m-flat m-warning} **KHR** | |
 @type_vk{ShaderModuleCreateFlagBits}, \n @type_vk{ShaderModuleCreateFlags} | @ref ShaderCreateInfo::Flag, \n @ref ShaderCreateInfo::Flags
-@type_vk{ShaderStageFlagBits}, \n @type_vk{ShaderStageFlags} | @ref ShaderStage
+@type_vk{ShaderStageFlagBits}, \n @type_vk{ShaderStageFlags} | @ref ShaderStage, \n @ref ShaderStages
 @type_vk{SharingMode}                   | |
 @type_vk{SparseImageFormatFlagBits}, \n @type_vk{SparseImageFormatFlags} | |
 @type_vk{SparseMemoryBindFlagBits}, \n @type_vk{SparseMemoryBindFlags} | |

src/Magnum/Vk/Shader.h

@@ -26,7 +26,7 @@
 */
 
 /** @file
- * @brief Class @ref Magnum::Vk::Shader, enum @ref Magnum::Vk::ShaderStage
+ * @brief Class @ref Magnum::Vk::Shader, enum @ref Magnum::Vk::ShaderStage, enum set @ref Magnum::Vk::ShaderStages
  * @m_since_latest
  */
 
@@ -47,6 +47,7 @@ namespace Implementation { struct DeviceState; }
 
 Wraps @type_vk_keyword{ShaderStageFlagBits}.
 @m_enum_values_as_keywords
+@see @ref ShaderStages, @ref ShaderSet::addShader()
 */
 enum class ShaderStage: UnsignedInt {
     /** Vertex stage */
@@ -113,6 +114,17 @@ enum class ShaderStage: UnsignedInt {
     RayCallable = VK_SHADER_STAGE_CALLABLE_BIT_KHR
 };
 
+/**
+@brief Shader stages
+@m_since_latest
+
+Type-safe wrapper for @type_vk_keyword{ShaderStageFlags}. Note that
+@cpp ~Vk::ShaderStages{} @ce can be used for @val_vk_keyword{SHADER_STAGE_ALL,ShaderStageFlagBits}.
+*/
+typedef Containers::EnumSet<ShaderStage, VK_SHADER_STAGE_ALL> ShaderStages;
+
+CORRADE_ENUMSET_OPERATORS(ShaderStages)
+
 /**
 @brief Shader
 @m_since_latest

src/Magnum/Vk/Vk.h

@@ -129,6 +129,10 @@ class ShaderCreateInfo;
 class ShaderSet;
 /* ShaderSpecialization used only directly with ShaderSet */
 enum class ShaderStage: UnsignedInt;
+/* 0x7FFFFFFF = VK_SHADER_STAGE_ALL, but that would mean including the whole
+   Vulkan headers. Using a number here and then the actual enum value in
+   Shadder.h to ensure it doesn't get out of sync. */
+typedef Containers::EnumSet<ShaderStage, 0x7FFFFFFF> ShaderStages;
 class SubmitInfo;
 class SubpassBeginInfo;
 class SubpassEndInfo;