Exemplo n.º 1
0
        void CreateCommandBuffers()
        {
            if (commandBuffers != null)
            {
                var Native = new NativeArray <VkCommandBuffer>(commandBuffers);
                VK.FreeCommandBuffers(device, commandPool, (uint)commandBuffers.Count, Native.Address);
                Native.Dispose();
            }
            commandBuffers = new List <VkCommandBuffer>(swapchainFramebuffers.Count);

            var info = new VkCommandBufferAllocateInfo();

            info.sType              = CSGL.Vulkan.VkStructureType.CommandBufferAllocateInfo;
            info.commandPool        = commandPool;
            info.level              = CSGL.Vulkan.VkCommandBufferLevel.Primary;
            info.commandBufferCount = (uint)commandBuffers.Capacity;

            var commandBuffersNative = new NativeArray <VkCommandBuffer>(commandBuffers.Capacity);

            var result = VK.AllocateCommandBuffers(device, ref info, commandBuffersNative.Address);

            for (int i = 0; i < commandBuffers.Capacity; i++)
            {
                commandBuffers.Add(commandBuffersNative[i]);
            }
            commandBuffersNative.Dispose();

            for (int i = 0; i < commandBuffers.Count; i++)
            {
                var beginInfo = new VkCommandBufferBeginInfo();
                beginInfo.sType = CSGL.Vulkan.VkStructureType.CommandBufferBeginInfo;
                beginInfo.flags = CSGL.Vulkan.VkCommandBufferUsageFlags.SimultaneousUseBit;

                VK.BeginCommandBuffer(commandBuffers[i], ref beginInfo);

                var renderPassInfo = new VkRenderPassBeginInfo();
                renderPassInfo.sType             = CSGL.Vulkan.VkStructureType.RenderPassBeginInfo;
                renderPassInfo.renderPass        = renderPass;
                renderPassInfo.framebuffer       = swapchainFramebuffers[i];
                renderPassInfo.renderArea.extent = swapchainExtent;

                VkClearValue clearColor = new VkClearValue();
                clearColor.color.float32_0 = 0;
                clearColor.color.float32_1 = 0;
                clearColor.color.float32_2 = 0;
                clearColor.color.float32_3 = 1f;

                var clearColorNative = new Native <VkClearValue>(clearColor);
                renderPassInfo.clearValueCount = 1;
                renderPassInfo.pClearValues    = clearColorNative.Address;

                VK.CmdBeginRenderPass(commandBuffers[i], ref renderPassInfo, CSGL.Vulkan.VkSubpassContents.Inline);
                VK.CmdBindPipeline(commandBuffers[i], CSGL.Vulkan.VkPipelineBindPoint.Graphics, pipeline);
                VK.CmdDraw(commandBuffers[i], 3, 1, 0, 0);
                VK.CmdEndRenderPass(commandBuffers[i]);

                result = VK.EndCommandBuffer(commandBuffers[i]);

                clearColorNative.Dispose();
            }
        }