void recordDraw(CommandBuffer cmd, Framebuffer fb)
{
texture.SetLayout(cmd, VkImageAspectFlags.Color, VkImageLayout.Undefined, VkImageLayout.ShaderReadOnlyOptimal,
VkPipelineStageFlags.BottomOfPipe, VkPipelineStageFlags.FragmentShader);
pipeline.RenderPass.Begin(cmd, fb);
cmd.SetViewport(fb.Width, fb.Height);
cmd.SetScissor(fb.Width, fb.Height);
cmd.BindDescriptorSet(pipeline.Layout, descriptorSet);
pipeline.Bind(cmd);
cmd.BindVertexBuffer(vbo, 0);
cmd.BindIndexBuffer(ibo, VkIndexType.Uint16);
cmd.DrawIndexed((uint)indices.Length);
pipeline.RenderPass.End(cmd);
}
void RenderTexturedQuad(CommandBuffer cmdBuffer, VertexData vertexData, ImageData imageData, PipelineLayout pipelineLayout, DescriptorSet descriptorSet, RenderPass renderPass, Pipeline pipeline, Framebuffer framebuffer, uint width, uint height)
{
var viewport = new Viewport(0, 0, width, height, 0, 1);
cmdBuffer.SetViewport(0, new[] { viewport });
var renderArea = new Rect2D(new Offset2D(0, 0), new Extent2D(width, height));
var renderPassBegin = new RenderPassBeginInfo(renderPass, framebuffer, renderArea, null);
cmdBuffer.BeginRenderPass(renderPassBegin, SubpassContents.Inline);
renderPassBegin.Dispose();
cmdBuffer.BindDescriptorSets(PipelineBindPoint.Graphics, pipelineLayout, 0, new[] { descriptorSet }, null);
cmdBuffer.BindPipeline(PipelineBindPoint.Graphics, pipeline);
cmdBuffer.BindVertexBuffers(0, new[] { vertexData.Buffer }, new DeviceSize[] { 0 });
cmdBuffer.BindIndexBuffer(vertexData.IndexBuffer, 0, IndexType.Uint32);
cmdBuffer.DrawIndexed((uint)vertexData.Indicies.Length, 1, 0, 0, 1);
cmdBuffer.EndRenderPass();
}
/// <summary>
/// Bind this vertex buffer.
/// </summary>
public void Bind(CommandBuffer commands, int offset)
{
commands.BindIndexBuffer(IndexBuffer, offset, IndexType.Uint32);
}
public override void Bind(Device device, RenderPass renderPass, CommandBuffer commandBuffer, Extent2D targetExtent)
{
this.aspectRatio = (float)targetExtent.Width / (float)targetExtent.Height;
this.pipeline = device.CreateGraphicsPipelines(null, new[]
{
new GraphicsPipelineCreateInfo
{
Layout = this.pipelineLayout,
RenderPass = renderPass,
Subpass = 0,
VertexInputState = new PipelineVertexInputStateCreateInfo()
{
VertexBindingDescriptions = new [] { Vertex.GetBindingDescription() },
VertexAttributeDescriptions = Vertex.GetAttributeDescriptions()
},
InputAssemblyState = new PipelineInputAssemblyStateCreateInfo
{
PrimitiveRestartEnable = false,
Topology = PrimitiveTopology.TriangleList
},
ViewportState = new PipelineViewportStateCreateInfo
{
Viewports = new[]
{
new Viewport
{
X = 0f,
Y = 0f,
Width = targetExtent.Width,
Height = targetExtent.Height,
MaxDepth = 1,
MinDepth = 0
}
},
Scissors = new[]
{
new Rect2D
{
Offset = new Offset2D(),
Extent = targetExtent
}
}
},
RasterizationState = new PipelineRasterizationStateCreateInfo
{
DepthClampEnable = false,
RasterizerDiscardEnable = false,
PolygonMode = PolygonMode.Fill,
LineWidth = 1,
CullMode = CullModeFlags.Back,
FrontFace = FrontFace.CounterClockwise,
DepthBiasEnable = false
},
MultisampleState = new PipelineMultisampleStateCreateInfo
{
SampleShadingEnable = false,
RasterizationSamples = SampleCountFlags.SampleCount1,
MinSampleShading = 1
},
ColorBlendState = new PipelineColorBlendStateCreateInfo
{
Attachments = new[]
{
new PipelineColorBlendAttachmentState
{
ColorWriteMask = ColorComponentFlags.R
| ColorComponentFlags.G
| ColorComponentFlags.B
| ColorComponentFlags.A,
BlendEnable = false,
SourceColorBlendFactor = BlendFactor.One,
DestinationColorBlendFactor = BlendFactor.Zero,
ColorBlendOp = BlendOp.Add,
SourceAlphaBlendFactor = BlendFactor.One,
DestinationAlphaBlendFactor = BlendFactor.Zero,
AlphaBlendOp = BlendOp.Add
}
},
LogicOpEnable = false,
LogicOp = LogicOp.Copy,
BlendConstants = new float[] { 0, 0, 0, 0 }
},
DepthStencilState = new PipelineDepthStencilStateCreateInfo
{
DepthTestEnable = true,
DepthWriteEnable = true,
DepthCompareOp = CompareOp.Less,
DepthBoundsTestEnable = false,
MinDepthBounds = 0,
MaxDepthBounds = 1,
StencilTestEnable = false
},
Stages = new[]
{
new PipelineShaderStageCreateInfo
{
Stage = ShaderStageFlags.Vertex,
Module = this.vertexShader,
Name = "main"
},
new PipelineShaderStageCreateInfo
{
Stage = ShaderStageFlags.Fragment,
Module = this.fragmentShader,
Name = "main"
}
}
}
}).Single();
commandBuffer.BindPipeline(PipelineBindPoint.Graphics, this.pipeline);
commandBuffer.BindVertexBuffers(0, this.vertexBuffer.Buffer, (DeviceSize)0);
commandBuffer.BindIndexBuffer(this.indexBuffer.Buffer, 0, IndexType.UInt32);
commandBuffer.BindDescriptorSets(PipelineBindPoint.Graphics, pipelineLayout, 0, descriptorSet, null);
commandBuffer.DrawIndexed((uint)indexCount, 1, 0, 0, 0);
}
/// <summary> bind vertex and index buffers </summary>
public virtual void Bind(CommandBuffer cmd)
{
cmd.BindVertexBuffer(vbo);
cmd.BindIndexBuffer(ibo, IndexBufferType);
}
public override void Bind(Device device, RenderPass renderPass, CommandBuffer commandBuffer, Extent2D targetExtent)
{
this.aspectRatio = (float)targetExtent.Width / (float)targetExtent.Height;
this.projectionMatrix = mat4.Translate(0, -1, 0) * mat4.Scale(256f / targetExtent.Width, 256f / targetExtent.Height, 1);
this.renderStateBuffer.Update(new RenderState {
Projection = mat4.Identity, View = mat4.Identity
});
this.pipeline = device.CreateGraphicsPipeline(null,
new[]
{
new PipelineShaderStageCreateInfo
{
Stage = ShaderStageFlags.Vertex,
Module = this.vertexShader,
Name = "main"
},
new PipelineShaderStageCreateInfo
{
Stage = ShaderStageFlags.Fragment,
Module = this.fragmentShader,
Name = "main"
}
},
new PipelineVertexInputStateCreateInfo()
{
VertexBindingDescriptions = new[] { Vertex.GetBindingDescription(), SpriteData.GetBindingDescription() },
VertexAttributeDescriptions = Vertex.GetAttributeDescriptions().Concat(SpriteData.GetAttributeDescriptions()).ToArray()
},
new PipelineInputAssemblyStateCreateInfo
{
Topology = PrimitiveTopology.TriangleList
},
new PipelineRasterizationStateCreateInfo
{
PolygonMode = PolygonMode.Fill,
LineWidth = 1,
CullMode = CullModeFlags.Back,
FrontFace = FrontFace.CounterClockwise
},
this.pipelineLayout,
renderPass,
0,
null,
0,
viewportState: new PipelineViewportStateCreateInfo
{
Viewports = new[]
{
new Viewport
{
X = 0f,
Y = 0f,
Width = targetExtent.Width,
Height = targetExtent.Height,
MaxDepth = 1,
MinDepth = 0
}
},
Scissors = new[]
{
new Rect2D(targetExtent)
}
},
multisampleState: new PipelineMultisampleStateCreateInfo
{
SampleShadingEnable = false,
RasterizationSamples = SampleCountFlags.SampleCount1,
MinSampleShading = 1
},
depthStencilState: new PipelineDepthStencilStateCreateInfo
{
DepthTestEnable = false,
DepthWriteEnable = true,
DepthCompareOp = CompareOp.Less,
MinDepthBounds = 0,
MaxDepthBounds = 1
},
colorBlendState: new PipelineColorBlendStateCreateInfo
{
Attachments = new[]
{
new PipelineColorBlendAttachmentState
{
ColorWriteMask = ColorComponentFlags.R
| ColorComponentFlags.G
| ColorComponentFlags.B
| ColorComponentFlags.A,
BlendEnable = true,
SourceColorBlendFactor = BlendFactor.SourceAlpha,
DestinationColorBlendFactor = BlendFactor.OneMinusSourceAlpha,
ColorBlendOp = BlendOp.Add,
SourceAlphaBlendFactor = BlendFactor.One,
DestinationAlphaBlendFactor = BlendFactor.One,
AlphaBlendOp = BlendOp.Max
}
},
BlendConstants = new float[] { 0, 0, 0, 0 }
});
commandBuffer.BindPipeline(PipelineBindPoint.Graphics, this.pipeline);
commandBuffer.BindVertexBuffers(0, new[] { this.vertexBuffer.Buffer, this.spriteDataBuffer.Buffer }, new DeviceSize[] { 0, 0 });
commandBuffer.BindIndexBuffer(this.indexBuffer.Buffer, 0, IndexType.Uint32);
commandBuffer.BindDescriptorSets(PipelineBindPoint.Graphics, pipelineLayout, 0, this.descriptorSet, null);
commandBuffer.DrawIndexedIndirect(this.indirectCommandBuffer.Buffer, 0, 1, 0);
}