// Copyright (c) 2022 The vulkano developers
// Licensed under the Apache License, Version 2.0
// <LICENSE-APACHE or
// https://www.apache.org/licenses/LICENSE-2.0> or the MIT
// license <LICENSE-MIT or https://opensource.org/licenses/MIT>,
// at your option. All files in the project carrying such
// notice may not be copied, modified, or distributed except
// according to those terms.

use crate::{
    command_buffer::{
        allocator::CommandBufferAllocator,
        auto::RenderPassStateType,
        synced::{Command, Resource, SyncCommandBufferBuilder, SyncCommandBufferBuilderError},
        sys::UnsafeCommandBufferBuilder,
        AutoCommandBufferBuilder, CommandBufferExecError, CommandBufferInheritanceRenderPassType,
        CommandBufferUsage, ResourceInCommand, ResourceUseRef, SecondaryCommandBufferAbstract,
        SecondaryCommandBufferBufferUsage, SecondaryCommandBufferImageUsage,
        SecondaryCommandBufferResourcesUsage, SubpassContents,
    },
    device::{DeviceOwned, QueueFlags},
    format::Format,
    image::SampleCount,
    query::{QueryControlFlags, QueryPipelineStatisticFlags, QueryType},
    RequiresOneOf, SafeDeref, VulkanObject,
};
use smallvec::SmallVec;
use std::{
    error::Error,
    fmt::{Display, Error as FmtError, Formatter},
};

/// # Commands to execute a secondary command buffer inside a primary command buffer.
///
/// These commands can be called on any queue that can execute the commands recorded in the
/// secondary command buffer.
impl<L, A> AutoCommandBufferBuilder<L, A>
where
    A: CommandBufferAllocator,
{
    /// Executes a secondary command buffer.
    ///
    /// If the `flags` that `command_buffer` was created with are more restrictive than those of
    /// `self`, then `self` will be restricted to match. E.g. executing a secondary command buffer
    /// with `Flags::OneTimeSubmit` will set `self`'s flags to `Flags::OneTimeSubmit` also.
    pub fn execute_commands<C>(
        &mut self,
        command_buffer: C,
    ) -> Result<&mut Self, ExecuteCommandsError>
    where
        C: SecondaryCommandBufferAbstract + 'static,
    {
        self.validate_execute_commands(&command_buffer, 0)?;

        unsafe {
            let secondary_usage = command_buffer.usage();
            let mut builder = self.inner.execute_commands();
            builder.add(command_buffer);
            builder.submit()?;

            // Secondary command buffer could leave the primary in any state.
            self.inner.reset_state();

            // If the secondary is non-concurrent or one-time use, that restricts the primary as
            // well.
            self.usage = std::cmp::min(self.usage, secondary_usage);
        }

        Ok(self)
    }

    /// Executes multiple secondary command buffers in a vector.
    ///
    /// This requires that the secondary command buffers do not have resource conflicts; an error
    /// will be returned if there are any. Use `execute_commands` if you want to ensure that
    /// resource conflicts are automatically resolved.
    // TODO ^ would be nice if this just worked without errors
    pub fn execute_commands_from_vec<C>(
        &mut self,
        command_buffers: Vec<C>,
    ) -> Result<&mut Self, ExecuteCommandsError>
    where
        C: SecondaryCommandBufferAbstract + 'static,
    {
        for (command_buffer_index, command_buffer) in command_buffers.iter().enumerate() {
            self.validate_execute_commands(command_buffer, command_buffer_index as u32)?;
        }

        unsafe {
            let mut secondary_usage = CommandBufferUsage::SimultaneousUse; // Most permissive usage

            let mut builder = self.inner.execute_commands();
            for command_buffer in command_buffers {
                secondary_usage = std::cmp::min(secondary_usage, command_buffer.usage());
                builder.add(command_buffer);
            }
            builder.submit()?;

            // Secondary command buffer could leave the primary in any state.
            self.inner.reset_state();

            // If the secondary is non-concurrent or one-time use, that restricts the primary as
            // well.
            self.usage = std::cmp::min(self.usage, secondary_usage);
        }

        Ok(self)
    }

    fn validate_execute_commands<C>(
        &self,
        command_buffer: &C,
        command_buffer_index: u32,
    ) -> Result<(), ExecuteCommandsError>
    where
        C: SecondaryCommandBufferAbstract + 'static,
    {
        // VUID-vkCmdExecuteCommands-commonparent
        assert_eq!(self.device(), command_buffer.device());

        let queue_family_properties = self.queue_family_properties();

        // VUID-vkCmdExecuteCommands-commandBuffer-cmdpool
        if !queue_family_properties
            .queue_flags
            .intersects(QueueFlags::TRANSFER | QueueFlags::GRAPHICS | QueueFlags::COMPUTE)
        {
            return Err(ExecuteCommandsError::NotSupportedByQueueFamily);
        }

        // TODO:
        // VUID-vkCmdExecuteCommands-pCommandBuffers-00094

        if let Some(render_pass_state) = &self.render_pass_state {
            // VUID-vkCmdExecuteCommands-contents-06018
            // VUID-vkCmdExecuteCommands-flags-06024
            if render_pass_state.contents != SubpassContents::SecondaryCommandBuffers {
                return Err(ExecuteCommandsError::ForbiddenWithSubpassContents {
                    contents: render_pass_state.contents,
                });
            }

            // VUID-vkCmdExecuteCommands-pCommandBuffers-00096
            let inheritance_render_pass = command_buffer
                .inheritance_info()
                .render_pass
                .as_ref()
                .ok_or(ExecuteCommandsError::RenderPassInheritanceRequired {
                    command_buffer_index,
                })?;

            match (&render_pass_state.render_pass, inheritance_render_pass) {
                (
                    RenderPassStateType::BeginRenderPass(state),
                    CommandBufferInheritanceRenderPassType::BeginRenderPass(inheritance_info),
                ) => {
                    // VUID-vkCmdExecuteCommands-pBeginInfo-06020
                    if !inheritance_info
                        .subpass
                        .render_pass()
                        .is_compatible_with(state.subpass.render_pass())
                    {
                        return Err(ExecuteCommandsError::RenderPassNotCompatible {
                            command_buffer_index,
                        });
                    }

                    // VUID-vkCmdExecuteCommands-pCommandBuffers-06019
                    if inheritance_info.subpass.index() != state.subpass.index() {
                        return Err(ExecuteCommandsError::RenderPassSubpassMismatch {
                            command_buffer_index,
                            required_subpass: state.subpass.index(),
                            inherited_subpass: inheritance_info.subpass.index(),
                        });
                    }

                    // VUID-vkCmdExecuteCommands-pCommandBuffers-00099
                    if let Some(framebuffer) = &inheritance_info.framebuffer {
                        if framebuffer != state.framebuffer.as_ref().unwrap() {
                            return Err(ExecuteCommandsError::RenderPassFramebufferMismatch {
                                command_buffer_index,
                            });
                        }
                    }
                }
                (
                    RenderPassStateType::BeginRendering(state),
                    CommandBufferInheritanceRenderPassType::BeginRendering(inheritance_info),
                ) => {
                    let attachments = state.attachments.as_ref().unwrap();

                    // VUID-vkCmdExecuteCommands-colorAttachmentCount-06027
                    if inheritance_info.color_attachment_formats.len()
                        != attachments.color_attachments.len()
                    {
                        return Err(
                            ExecuteCommandsError::RenderPassColorAttachmentCountMismatch {
                                command_buffer_index,
                                required_count: attachments.color_attachments.len() as u32,
                                inherited_count: inheritance_info.color_attachment_formats.len()
                                    as u32,
                            },
                        );
                    }

                    for (color_attachment_index, image_view, inherited_format) in attachments
                        .color_attachments
                        .iter()
                        .zip(inheritance_info.color_attachment_formats.iter().copied())
                        .enumerate()
                        .filter_map(|(i, (a, f))| a.as_ref().map(|a| (i as u32, &a.image_view, f)))
                    {
                        let required_format = image_view.format().unwrap();

                        // VUID-vkCmdExecuteCommands-imageView-06028
                        if Some(required_format) != inherited_format {
                            return Err(
                                ExecuteCommandsError::RenderPassColorAttachmentFormatMismatch {
                                    command_buffer_index,
                                    color_attachment_index,
                                    required_format,
                                    inherited_format,
                                },
                            );
                        }

                        // VUID-vkCmdExecuteCommands-pNext-06035
                        if image_view.image().samples() != inheritance_info.rasterization_samples {
                            return Err(
                                ExecuteCommandsError::RenderPassColorAttachmentSamplesMismatch {
                                    command_buffer_index,
                                    color_attachment_index,
                                    required_samples: image_view.image().samples(),
                                    inherited_samples: inheritance_info.rasterization_samples,
                                },
                            );
                        }
                    }

                    if let Some((image_view, format)) = attachments
                        .depth_attachment
                        .as_ref()
                        .map(|a| (&a.image_view, inheritance_info.depth_attachment_format))
                    {
                        // VUID-vkCmdExecuteCommands-pDepthAttachment-06029
                        if Some(image_view.format().unwrap()) != format {
                            return Err(
                                ExecuteCommandsError::RenderPassDepthAttachmentFormatMismatch {
                                    command_buffer_index,
                                    required_format: image_view.format().unwrap(),
                                    inherited_format: format,
                                },
                            );
                        }

                        // VUID-vkCmdExecuteCommands-pNext-06036
                        if image_view.image().samples() != inheritance_info.rasterization_samples {
                            return Err(
                                ExecuteCommandsError::RenderPassDepthAttachmentSamplesMismatch {
                                    command_buffer_index,
                                    required_samples: image_view.image().samples(),
                                    inherited_samples: inheritance_info.rasterization_samples,
                                },
                            );
                        }
                    }

                    if let Some((image_view, format)) = attachments
                        .stencil_attachment
                        .as_ref()
                        .map(|a| (&a.image_view, inheritance_info.stencil_attachment_format))
                    {
                        // VUID-vkCmdExecuteCommands-pStencilAttachment-06030
                        if Some(image_view.format().unwrap()) != format {
                            return Err(
                                ExecuteCommandsError::RenderPassStencilAttachmentFormatMismatch {
                                    command_buffer_index,
                                    required_format: image_view.format().unwrap(),
                                    inherited_format: format,
                                },
                            );
                        }

                        // VUID-vkCmdExecuteCommands-pNext-06037
                        if image_view.image().samples() != inheritance_info.rasterization_samples {
                            return Err(
                                ExecuteCommandsError::RenderPassStencilAttachmentSamplesMismatch {
                                    command_buffer_index,
                                    required_samples: image_view.image().samples(),
                                    inherited_samples: inheritance_info.rasterization_samples,
                                },
                            );
                        }
                    }

                    // VUID-vkCmdExecuteCommands-viewMask-06031
                    if inheritance_info.view_mask != render_pass_state.view_mask {
                        return Err(ExecuteCommandsError::RenderPassViewMaskMismatch {
                            command_buffer_index,
                            required_view_mask: render_pass_state.view_mask,
                            inherited_view_mask: inheritance_info.view_mask,
                        });
                    }
                }
                _ => {
                    // VUID-vkCmdExecuteCommands-pBeginInfo-06025
                    return Err(ExecuteCommandsError::RenderPassTypeMismatch {
                        command_buffer_index,
                    });
                }
            }

            // TODO:
            // VUID-vkCmdExecuteCommands-commandBuffer-06533
            // VUID-vkCmdExecuteCommands-commandBuffer-06534
            // VUID-vkCmdExecuteCommands-pCommandBuffers-06535
            // VUID-vkCmdExecuteCommands-pCommandBuffers-06536
        } else {
            // VUID-vkCmdExecuteCommands-pCommandBuffers-00100
            if command_buffer.inheritance_info().render_pass.is_some() {
                return Err(ExecuteCommandsError::RenderPassInheritanceForbidden {
                    command_buffer_index,
                });
            }
        }

        // VUID-vkCmdExecuteCommands-commandBuffer-00101
        if !self.query_state.is_empty() && !self.device().enabled_features().inherited_queries {
            return Err(ExecuteCommandsError::RequirementNotMet {
                required_for: "`AutoCommandBufferBuilder::execute_commands` when a query is active",
                requires_one_of: RequiresOneOf {
                    features: &["inherited_queries"],
                    ..Default::default()
                },
            });
        }

        for state in self.query_state.values() {
            match state.ty {
                QueryType::Occlusion => {
                    // VUID-vkCmdExecuteCommands-commandBuffer-00102
                    let inherited_flags = command_buffer.inheritance_info().occlusion_query.ok_or(
                        ExecuteCommandsError::OcclusionQueryInheritanceRequired {
                            command_buffer_index,
                        },
                    )?;

                    let inherited_flags_vk = ash::vk::QueryControlFlags::from(inherited_flags);
                    let state_flags_vk = ash::vk::QueryControlFlags::from(state.flags);

                    // VUID-vkCmdExecuteCommands-commandBuffer-00103
                    if inherited_flags_vk & state_flags_vk != state_flags_vk {
                        return Err(ExecuteCommandsError::OcclusionQueryFlagsNotSuperset {
                            command_buffer_index,
                            required_flags: state.flags,
                            inherited_flags,
                        });
                    }
                }
                QueryType::PipelineStatistics(state_flags) => {
                    let inherited_flags = command_buffer.inheritance_info().query_statistics_flags;
                    let inherited_flags_vk =
                        ash::vk::QueryPipelineStatisticFlags::from(inherited_flags);
                    let state_flags_vk = ash::vk::QueryPipelineStatisticFlags::from(state_flags);

                    // VUID-vkCmdExecuteCommands-commandBuffer-00104
                    if inherited_flags_vk & state_flags_vk != state_flags_vk {
                        return Err(
                            ExecuteCommandsError::PipelineStatisticsQueryFlagsNotSuperset {
                                command_buffer_index,
                                required_flags: state_flags,
                                inherited_flags,
                            },
                        );
                    }
                }
                QueryType::Timestamp => (),
            }
        }

        // TODO:
        // VUID-vkCmdExecuteCommands-pCommandBuffers-00091
        // VUID-vkCmdExecuteCommands-pCommandBuffers-00092
        // VUID-vkCmdExecuteCommands-pCommandBuffers-00093
        // VUID-vkCmdExecuteCommands-pCommandBuffers-00105

        // VUID-vkCmdExecuteCommands-bufferlevel
        // Ensured by the type of the impl block.

        // VUID-vkCmdExecuteCommands-pCommandBuffers-00088
        // VUID-vkCmdExecuteCommands-pCommandBuffers-00089
        // Ensured by the SecondaryCommandBuffer trait.

        Ok(())
    }
}

impl SyncCommandBufferBuilder {
    /// Starts the process of executing secondary command buffers. Returns an intermediate struct
    /// which can be used to add the command buffers.
    #[inline]
    pub unsafe fn execute_commands(&mut self) -> SyncCommandBufferBuilderExecuteCommands<'_> {
        SyncCommandBufferBuilderExecuteCommands {
            builder: self,
            inner: Vec::new(),
        }
    }
}

/// Prototype for a `vkCmdExecuteCommands`.
pub struct SyncCommandBufferBuilderExecuteCommands<'a> {
    builder: &'a mut SyncCommandBufferBuilder,
    inner: Vec<Box<dyn SecondaryCommandBufferAbstract>>,
}

impl<'a> SyncCommandBufferBuilderExecuteCommands<'a> {
    /// Adds a command buffer to the list.
    pub fn add(&mut self, command_buffer: impl SecondaryCommandBufferAbstract + 'static) {
        self.inner.push(Box::new(command_buffer));
    }

    #[inline]
    pub unsafe fn submit(self) -> Result<(), SyncCommandBufferBuilderError> {
        struct DropUnlock(Box<dyn SecondaryCommandBufferAbstract>);
        impl std::ops::Deref for DropUnlock {
            type Target = Box<dyn SecondaryCommandBufferAbstract>;

            fn deref(&self) -> &Self::Target {
                &self.0
            }
        }
        unsafe impl SafeDeref for DropUnlock {}

        impl Drop for DropUnlock {
            fn drop(&mut self) {
                unsafe {
                    self.unlock();
                }
            }
        }

        struct Cmd(Vec<DropUnlock>);

        impl Command for Cmd {
            fn name(&self) -> &'static str {
                "execute_commands"
            }

            unsafe fn send(&self, out: &mut UnsafeCommandBufferBuilder) {
                let mut execute = UnsafeCommandBufferBuilderExecuteCommands::new();
                self.0
                    .iter()
                    .for_each(|cbuf| execute.add_raw(cbuf.handle()));
                out.execute_commands(execute);
            }
        }

        let command_index = self.builder.commands.len();
        let command_name = "execute_commands";
        let resources: Vec<_> = self
            .inner
            .iter()
            .enumerate()
            .flat_map(|(index, cbuf)| {
                let index = index as u32;
                let SecondaryCommandBufferResourcesUsage { buffers, images } =
                    cbuf.resources_usage();

                (buffers.iter().map(move |usage| {
                    let &SecondaryCommandBufferBufferUsage {
                        use_ref,
                        ref buffer,
                        ref range,
                        memory,
                    } = usage;

                    (
                        ResourceUseRef {
                            command_index,
                            command_name,
                            resource_in_command: ResourceInCommand::SecondaryCommandBuffer {
                                index,
                            },
                            secondary_use_ref: Some(use_ref.into()),
                        },
                        Resource::Buffer {
                            buffer: buffer.clone(),
                            range: range.clone(),
                            memory,
                        },
                    )
                }))
                .chain(images.iter().map(move |usage| {
                    let &SecondaryCommandBufferImageUsage {
                        use_ref,
                        ref image,
                        ref subresource_range,
                        memory,
                        start_layout,
                        end_layout,
                    } = usage;

                    (
                        ResourceUseRef {
                            command_index,
                            command_name,
                            resource_in_command: ResourceInCommand::SecondaryCommandBuffer {
                                index,
                            },
                            secondary_use_ref: Some(use_ref.into()),
                        },
                        Resource::Image {
                            image: image.clone(),
                            subresource_range: subresource_range.clone(),
                            memory,
                            start_layout,
                            end_layout,
                        },
                    )
                }))
            })
            .collect();

        for resource in &resources {
            self.builder.check_resource_conflicts(resource)?;
        }

        self.builder.commands.push(Box::new(Cmd(self
            .inner
            .into_iter()
            .map(|cbuf| {
                cbuf.lock_record()?;
                Ok(DropUnlock(cbuf))
            })
            .collect::<Result<Vec<_>, CommandBufferExecError>>()?)));

        for resource in resources {
            self.builder.add_resource(resource);
        }

        Ok(())
    }
}

impl UnsafeCommandBufferBuilder {
    /// Calls `vkCmdExecuteCommands` on the builder.
    ///
    /// Does nothing if the list of command buffers is empty, as it would be a no-op and isn't a
    /// valid usage of the command anyway.
    #[inline]
    pub unsafe fn execute_commands(&mut self, cbs: UnsafeCommandBufferBuilderExecuteCommands) {
        if cbs.raw_cbs.is_empty() {
            return;
        }

        let fns = self.device.fns();
        (fns.v1_0.cmd_execute_commands)(
            self.handle,
            cbs.raw_cbs.len() as u32,
            cbs.raw_cbs.as_ptr(),
        );
    }
}

/// Prototype for a `vkCmdExecuteCommands`.
pub struct UnsafeCommandBufferBuilderExecuteCommands {
    // Raw handles of the command buffers to execute.
    raw_cbs: SmallVec<[ash::vk::CommandBuffer; 4]>,
}

impl UnsafeCommandBufferBuilderExecuteCommands {
    /// Builds a new empty list.
    #[inline]
    pub fn new() -> UnsafeCommandBufferBuilderExecuteCommands {
        UnsafeCommandBufferBuilderExecuteCommands {
            raw_cbs: SmallVec::new(),
        }
    }

    /// Adds a command buffer to the list.
    pub fn add(&mut self, cb: &(impl SecondaryCommandBufferAbstract + ?Sized)) {
        // TODO: debug assert that it is a secondary command buffer?
        self.raw_cbs.push(cb.handle());
    }

    /// Adds a command buffer to the list.
    #[inline]
    pub unsafe fn add_raw(&mut self, cb: ash::vk::CommandBuffer) {
        self.raw_cbs.push(cb);
    }
}

/// Error that can happen when executing a secondary command buffer.
#[derive(Clone, Debug)]
pub enum ExecuteCommandsError {
    SyncCommandBufferBuilderError(SyncCommandBufferBuilderError),

    RequirementNotMet {
        required_for: &'static str,
        requires_one_of: RequiresOneOf,
    },

    /// Operation forbidden inside a render subpass with the specified contents.
    ForbiddenWithSubpassContents {
        contents: SubpassContents,
    },

    /// The queue family doesn't allow this operation.
    NotSupportedByQueueFamily,

    /// A render pass is active, but a command buffer does not contain occlusion query inheritance
    /// info.
    OcclusionQueryInheritanceRequired {
        command_buffer_index: u32,
    },

    /// The inherited occlusion query control flags of a command buffer are not a superset of the
    /// currently active flags.
    OcclusionQueryFlagsNotSuperset {
        command_buffer_index: u32,
        required_flags: QueryControlFlags,
        inherited_flags: QueryControlFlags,
    },

    /// The inherited pipeline statistics query flags of a command buffer are not a superset of the
    /// currently active flags.
    PipelineStatisticsQueryFlagsNotSuperset {
        command_buffer_index: u32,
        required_flags: QueryPipelineStatisticFlags,
        inherited_flags: QueryPipelineStatisticFlags,
    },

    /// The inherited color attachment count of a command buffer does not match the current
    /// attachment count.
    RenderPassColorAttachmentCountMismatch {
        command_buffer_index: u32,
        required_count: u32,
        inherited_count: u32,
    },

    /// The inherited format of a color attachment of a command buffer does not match the current
    /// attachment format.
    RenderPassColorAttachmentFormatMismatch {
        command_buffer_index: u32,
        color_attachment_index: u32,
        required_format: Format,
        inherited_format: Option<Format>,
    },

    /// The inherited sample count of a color attachment of a command buffer does not match the
    /// current attachment sample count.
    RenderPassColorAttachmentSamplesMismatch {
        command_buffer_index: u32,
        color_attachment_index: u32,
        required_samples: SampleCount,
        inherited_samples: SampleCount,
    },

    /// The inherited format of the depth attachment of a command buffer does not match the current
    /// attachment format.
    RenderPassDepthAttachmentFormatMismatch {
        command_buffer_index: u32,
        required_format: Format,
        inherited_format: Option<Format>,
    },

    /// The inherited sample count of the depth attachment of a command buffer does not match the
    /// current attachment sample count.
    RenderPassDepthAttachmentSamplesMismatch {
        command_buffer_index: u32,
        required_samples: SampleCount,
        inherited_samples: SampleCount,
    },

    /// The inherited framebuffer of a command buffer does not match the current framebuffer.
    RenderPassFramebufferMismatch {
        command_buffer_index: u32,
    },

    /// A render pass is active, but a command buffer does not contain render pass inheritance info.
    RenderPassInheritanceRequired {
        command_buffer_index: u32,
    },

    /// A render pass is not active, but a command buffer contains render pass inheritance info.
    RenderPassInheritanceForbidden {
        command_buffer_index: u32,
    },

    /// The inherited render pass of a command buffer is not compatible with the current render
    /// pass.
    RenderPassNotCompatible {
        command_buffer_index: u32,
    },

    /// The inherited format of the stencil attachment of a command buffer does not match the
    /// current attachment format.
    RenderPassStencilAttachmentFormatMismatch {
        command_buffer_index: u32,
        required_format: Format,
        inherited_format: Option<Format>,
    },

    /// The inherited sample count of the stencil attachment of a command buffer does not match the
    /// current attachment sample count.
    RenderPassStencilAttachmentSamplesMismatch {
        command_buffer_index: u32,
        required_samples: SampleCount,
        inherited_samples: SampleCount,
    },

    /// The inherited subpass index of a command buffer does not match the current subpass index.
    RenderPassSubpassMismatch {
        command_buffer_index: u32,
        required_subpass: u32,
        inherited_subpass: u32,
    },

    /// The inherited render pass of a command buffer is of the wrong type.
    RenderPassTypeMismatch {
        command_buffer_index: u32,
    },

    /// The inherited view mask of a command buffer does not match the current view mask.
    RenderPassViewMaskMismatch {
        command_buffer_index: u32,
        required_view_mask: u32,
        inherited_view_mask: u32,
    },
}

impl Error for ExecuteCommandsError {
    fn source(&self) -> Option<&(dyn Error + 'static)> {
        match self {
            Self::SyncCommandBufferBuilderError(err) => Some(err),
            _ => None,
        }
    }
}

impl Display for ExecuteCommandsError {
    fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), FmtError> {
        match self {
            Self::SyncCommandBufferBuilderError(_) => write!(f, "a SyncCommandBufferBuilderError"),
            Self::RequirementNotMet {
                required_for,
                requires_one_of,
            } => write!(
                f,
                "a requirement was not met for: {}; requires one of: {}",
                required_for, requires_one_of,
            ),
            Self::ForbiddenWithSubpassContents {
                contents: subpass_contents,
            } => write!(
                f,
                "operation forbidden inside a render subpass with contents {:?}",
                subpass_contents,
            ),
            Self::NotSupportedByQueueFamily => {
                write!(f, "the queue family doesn't allow this operation")
            }
            Self::OcclusionQueryInheritanceRequired {
                command_buffer_index,
            } => write!(
                f,
                "a render pass is active, but command buffer {} does not contain occlusion query \
                inheritance info",
                command_buffer_index,
            ),
            Self::OcclusionQueryFlagsNotSuperset {
                command_buffer_index,
                required_flags,
                inherited_flags,
            } => write!(
                f,
                "the inherited occlusion query control flags ({:?}) of command buffer {} are not a \
                superset of the currently active flags ({:?})",
                inherited_flags, command_buffer_index, required_flags,
            ),
            Self::PipelineStatisticsQueryFlagsNotSuperset {
                command_buffer_index,
                required_flags,
                inherited_flags,
            } => write!(
                f,
                "the inherited pipeline statistics query flags ({:?}) of command buffer {} are not \
                a superset of the currently active flags ({:?})",
                inherited_flags, command_buffer_index, required_flags,
            ),
            Self::RenderPassColorAttachmentCountMismatch {
                command_buffer_index,
                required_count,
                inherited_count,
            } => write!(
                f,
                "the inherited color attachment count ({}) of command buffer {} does not match the \
                current attachment count ({})",
                inherited_count, command_buffer_index, required_count,
            ),
            Self::RenderPassColorAttachmentFormatMismatch {
                command_buffer_index,
                color_attachment_index,
                required_format,
                inherited_format,
            } => write!(
                f,
                "the inherited format ({:?}) of color attachment {} of command buffer {} does not \
                match the current attachment format ({:?})",
                inherited_format, color_attachment_index, command_buffer_index, required_format,
            ),
            Self::RenderPassColorAttachmentSamplesMismatch {
                command_buffer_index,
                color_attachment_index,
                required_samples,
                inherited_samples,
            } => write!(
                f,
                "the inherited sample count ({:?}) of color attachment {} of command buffer {} \
                does not match the current attachment sample count ({:?})",
                inherited_samples, color_attachment_index, command_buffer_index, required_samples,
            ),
            Self::RenderPassDepthAttachmentFormatMismatch {
                command_buffer_index,
                required_format,
                inherited_format,
            } => write!(
                f,
                "the inherited format ({:?}) of the depth attachment of command buffer {} does not \
                match the current attachment format ({:?})",
                inherited_format, command_buffer_index, required_format,
            ),
            Self::RenderPassDepthAttachmentSamplesMismatch {
                command_buffer_index,
                required_samples,
                inherited_samples,
            } => write!(
                f,
                "the inherited sample count ({:?}) of the depth attachment of command buffer {} \
                does not match the current attachment sample count ({:?})",
                inherited_samples, command_buffer_index, required_samples,
            ),
            Self::RenderPassFramebufferMismatch {
                command_buffer_index,
            } => write!(
                f,
                "the inherited framebuffer of command buffer {} does not match the current \
                framebuffer",
                command_buffer_index,
            ),
            Self::RenderPassInheritanceRequired {
                command_buffer_index,
            } => write!(
                f,
                "a render pass is active, but command buffer {} does not contain render pass \
                inheritance info",
                command_buffer_index,
            ),
            Self::RenderPassInheritanceForbidden {
                command_buffer_index,
            } => write!(
                f,
                "a render pass is not active, but command buffer {} contains render pass \
                inheritance info",
                command_buffer_index,
            ),
            Self::RenderPassNotCompatible {
                command_buffer_index,
            } => write!(
                f,
                "the inherited render pass of command buffer {} is not compatible with the current \
                render pass",
                command_buffer_index,
            ),
            Self::RenderPassStencilAttachmentFormatMismatch {
                command_buffer_index,
                required_format,
                inherited_format,
            } => write!(
                f,
                "the inherited format ({:?}) of the stencil attachment of command buffer {} does \
                not match the current attachment format ({:?})",
                inherited_format, command_buffer_index, required_format,
            ),
            Self::RenderPassStencilAttachmentSamplesMismatch {
                command_buffer_index,
                required_samples,
                inherited_samples,
            } => write!(
                f,
                "the inherited sample count ({:?}) of the stencil attachment of command buffer {} \
                does not match the current attachment sample count ({:?})",
                inherited_samples, command_buffer_index, required_samples,
            ),
            Self::RenderPassSubpassMismatch {
                command_buffer_index,
                required_subpass,
                inherited_subpass,
            } => write!(
                f,
                "the inherited subpass index ({}) of command buffer {} does not match the current \
                subpass index ({})",
                inherited_subpass, command_buffer_index, required_subpass,
            ),
            Self::RenderPassTypeMismatch {
                command_buffer_index,
            } => write!(
                f,
                "the inherited render pass of command buffer {} is of the wrong type",
                command_buffer_index,
            ),
            Self::RenderPassViewMaskMismatch {
                command_buffer_index,
                required_view_mask,
                inherited_view_mask,
            } => write!(
                f,
                "the inherited view mask ({}) of command buffer {} does not match the current view \
                mask ({})",
                inherited_view_mask, command_buffer_index, required_view_mask,
            ),
        }
    }
}

impl From<SyncCommandBufferBuilderError> for ExecuteCommandsError {
    fn from(err: SyncCommandBufferBuilderError) -> Self {
        Self::SyncCommandBufferBuilderError(err)
    }
}