CopyImageToBuffer()

void Spices::VulkanImage::CopyImageToBuffer	(	VkBuffer	dstBuffer,
		const std::vector< VkBufferImageCopy > &	regions )

@breif Copy data from a VkImage.

Parameters

[in]	dstBuffer	The Dst Buffer.
[in]	regions	Specific Regions.

Use Custom Cmd.

Use Custom Cmd.

Definition at line 522 of file VulkanImage.cpp.

    {
        SPICES_PROFILE_ZONE;
 
        /*
        * @brief Transfer image layout from whatever to transfer src.
        */
        TransitionImageLayout(
            m_Format,
            VK_IMAGE_LAYOUT_UNDEFINED,
            VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL
        );
 
        VulkanCommandBuffer::CustomGraphicCmd(m_VulkanState, [&](const VkCommandBuffer& commandBuffer) {
            vkCmdCopyImageToBuffer(commandBuffer, m_Image, VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL, dstBuffer, regions.size(), regions.data());
        });
 
        /*
        * @brief Transfer image layout from transfer src to shader read.
        * means only can get data from a shader read layout image.
        * @note In SpicesEngine, we need transform layout to shader read in scene compose renderer first,
        * and after that, you can do this here.
        */
        TransitionImageLayout(
            m_Format,
            VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
            VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL
        );
    }

References Spices::VulkanObject::m_VulkanState.