Пример #1
0
 public PlatformRenderTexture2D(PlatformRenderContext context, Format format, int width, int height, TextureParams textureParams)
     : base(context, format, width, height, false, true, textureParams)
 {
     colorFormat = VulkanHelper.GetVKFormat(format);
     CreateDepthStencilBuffer();
     CreateRenderPass();
     CreateFramebuffer();
 }
Пример #2
0
        private void Create(bool renderTarget)
        {
            var vkFormat = VulkanHelper.GetVKFormat(format);
            var usage    =
                SharpVulkan.ImageUsageFlags.TransferSource |
                SharpVulkan.ImageUsageFlags.TransferDestination |
                SharpVulkan.ImageUsageFlags.Sampled;

            if (renderTarget)
            {
                usage |= SharpVulkan.ImageUsageFlags.ColorAttachment;
            }
            var tiling          = SharpVulkan.ImageTiling.Optimal;
            var imageCreateInfo = new SharpVulkan.ImageCreateInfo {
                StructureType = SharpVulkan.StructureType.ImageCreateInfo,
                ImageType     = SharpVulkan.ImageType.Image2D,
                Usage         = usage,
                Format        = vkFormat,
                Extent        = new SharpVulkan.Extent3D((uint)width, (uint)height, 1),
                MipLevels     = (uint)levelCount,
                ArrayLayers   = 1,
                Samples       = SharpVulkan.SampleCountFlags.Sample1,
                SharingMode   = SharpVulkan.SharingMode.Exclusive,
                InitialLayout = SharpVulkan.ImageLayout.Undefined,
                Tiling        = tiling
            };

            image = context.Device.CreateImage(ref imageCreateInfo);
            var memoryPropertyFlags = SharpVulkan.MemoryPropertyFlags.DeviceLocal;

            if (IsPvrtc1Format(Format))
            {
                memoryPropertyFlags |= SharpVulkan.MemoryPropertyFlags.HostVisible | SharpVulkan.MemoryPropertyFlags.HostCoherent;
            }
            memory = context.MemoryAllocator.Allocate(image, memoryPropertyFlags, tiling);
            var viewCreateInfo = new SharpVulkan.ImageViewCreateInfo {
                StructureType    = SharpVulkan.StructureType.ImageViewCreateInfo,
                ViewType         = SharpVulkan.ImageViewType.Image2D,
                Image            = image,
                Format           = vkFormat,
                Components       = SharpVulkan.ComponentMapping.Identity,
                SubresourceRange = new SharpVulkan.ImageSubresourceRange(SharpVulkan.ImageAspectFlags.Color)
            };

            imageView = context.Device.CreateImageView(ref viewCreateInfo);
            var memoryBarrier = new SharpVulkan.ImageMemoryBarrier {
                StructureType         = SharpVulkan.StructureType.ImageMemoryBarrier,
                Image                 = image,
                OldLayout             = SharpVulkan.ImageLayout.Undefined,
                NewLayout             = SharpVulkan.ImageLayout.ShaderReadOnlyOptimal,
                SourceAccessMask      = SharpVulkan.AccessFlags.None,
                DestinationAccessMask = SharpVulkan.AccessFlags.ShaderRead,
                SubresourceRange      = new SharpVulkan.ImageSubresourceRange(SharpVulkan.ImageAspectFlags.Color)
            };

            context.EndRenderPass();
            context.EnsureCommandBuffer();
            context.CommandBuffer.PipelineBarrier(
                SharpVulkan.PipelineStageFlags.TopOfPipe, SharpVulkan.PipelineStageFlags.VertexShader | SharpVulkan.PipelineStageFlags.FragmentShader,
                SharpVulkan.DependencyFlags.None, 0, null, 0, null, 1, &memoryBarrier);
        }