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);
}
