/// <summary>
/// Bound a texture to be used with imgui, the id will be used by imgui to notify us which texture to draw, bound textures will be disposed with the ui renderer
/// </summary>
/// <param name="texture"></param>
/// <returns></returns>
public IntPtr BindTexture(CTextureSampler texture)
{
IntPtr id = new IntPtr(m_textureId++);
m_boundTextures.Add(id, texture);
return(id);
}
public void InitDefaultResources(DeviceContext deviceContext)
{
DefaultShader = RequestShaderResource(new SHashedName("SimpleLitShader"));
DepthShader = RequestShaderResource(new SHashedName("depthShader"));
DepthCubeShader = RequestShaderResource(new SHashedName("depthCubeShader"));
DefaultTexture = new CTextureSampler(m_graphicsDevice, deviceContext, "Resources/Textures/DefaultTexture.tga");
FallbackTexture = new CTextureSampler(m_graphicsDevice, deviceContext, "Resources/Textures/MissingTexture.tga");
WhiteTexture = new CTextureSampler(m_graphicsDevice, deviceContext, "Resources/Textures/DefaultWhite.tga");
BlackTexture = new CTextureSampler(m_graphicsDevice, deviceContext, "Resources/Textures/DefaultBlack.tga");
DefaultMaterial = CMaterial.CreateDefaultMaterial();
DefaultMaterial.ShaderResource = DefaultShader;
DefaultMaterial.SetTextureParameter(new SHashedName("DiffuseTexture"), WhiteTexture);
DefaultMaterial.FinishLoading();
DefaultTextureMaterial = CMaterial.CreateDefaultMaterial();
DefaultTextureMaterial.ShaderResource = DefaultShader;
DefaultTextureMaterial.SetTextureParameter(new SHashedName("DiffuseTexture"), DefaultTexture);
DefaultTextureMaterial.FinishLoading();
MissingTextureMaterial = CMaterial.CreateDefaultMaterial();
MissingTextureMaterial.ShaderResource = DefaultShader;
MissingTextureMaterial.SetTextureParameter(new SHashedName("DiffuseTexture"), FallbackTexture);
MissingTextureMaterial.FinishLoading();
}
public object ToEditorValue(object materialValue)
{
if (materialValue == null)
{
return(null);
}
CTextureSampler textureValue = (CTextureSampler)materialValue;
CAssetReference <CTextureAsset> assetReference = CAssetRegistry.Instance.GetAsset <CTextureAsset>(textureValue.Guid);
return(assetReference);
}
public void EndRender()
{
ImGui.Render();
unsafe
{
ImDrawDataPtr drawData = ImGui.GetDrawData();
if (drawData.CmdListsCount <= 0)
{
return;
}
UserDefinedAnnotation annotation = m_d3DeviceContext.QueryInterface <UserDefinedAnnotation>();
annotation.BeginEvent("ImguiPass");
// Grow buffers in case they are to small
if (m_vertexBufferSize < drawData.TotalVtxCount || m_indexBufferSize < drawData.TotalIdxCount)
{
m_indexBufferSize = (int)(drawData.TotalIdxCount * 1.5f);
m_vertexBufferSize = (int)(drawData.TotalVtxCount * 1.5f);
CreateVertexIndexBuffer();
}
m_d3DeviceContext.MapSubresource(m_vertexBuffer, MapMode.WriteDiscard, MapFlags.None, out DataStream vertexStream);
m_d3DeviceContext.MapSubresource(m_indexBuffer, MapMode.WriteDiscard, MapFlags.None, out DataStream indexStream);
for (int i = 0; i < drawData.CmdListsCount; i++)
{
ImDrawListPtr drawList = drawData.CmdListsRange[i];
IntPtr vertexPtr = drawList.VtxBuffer.Data;
vertexStream.Write(vertexPtr, 0, drawList.VtxBuffer.Size * Utilities.SizeOf <ImDrawVert>());
IntPtr indexPtr = drawList.IdxBuffer.Data;
indexStream.Write(indexPtr, 0, drawList.IdxBuffer.Size * Utilities.SizeOf <ushort>());
}
m_d3DeviceContext.UnmapSubresource(m_vertexBuffer, 0);
m_d3DeviceContext.UnmapSubresource(m_indexBuffer, 0);
float offset = 0.0f;
Matrix mvpMatrix = Matrix.OrthoOffCenterLH(offset, m_imguiIO.DisplaySize.X + offset, m_imguiIO.DisplaySize.Y + offset, offset, -1.0f, 1.0f);
mvpMatrix.Transpose();
SShaderParameter parameter;
parameter.parameterType = EShaderParameterType.Matrix;
parameter.parameterData = mvpMatrix;
m_shaderParameters[new SHashedName("mvpMatrix")] = parameter;
SShaderParameter fontTextureParams;
fontTextureParams.parameterType = EShaderParameterType.Texture;
fontTextureParams.parameterData = m_boundTextures[m_fontAtlasId];
m_shaderParameters[new SHashedName("texture")] = fontTextureParams;
m_shader.SetShaderParameters(m_d3DeviceContext, m_shaderParameters);
m_shader.SetActive(m_d3DeviceContext);
m_d3DeviceContext.InputAssembler.SetVertexBuffers(0, new VertexBufferBinding(m_vertexBuffer, Utilities.SizeOf <ImDrawVert>(), 0));
m_d3DeviceContext.InputAssembler.SetIndexBuffer(m_indexBuffer, Format.R16_UInt, 0);
m_d3DeviceContext.InputAssembler.PrimitiveTopology = PrimitiveTopology.TriangleList;
RawViewportF[] prevViewports = m_d3DeviceContext.Rasterizer.GetViewports <RawViewportF>();
RasterizerState prevRasterizerState = m_d3DeviceContext.Rasterizer.State;
DepthStencilState prevDepthState = m_d3DeviceContext.OutputMerger.DepthStencilState;
BlendState prevBlendState = m_d3DeviceContext.OutputMerger.BlendState;
Rectangle[] prevScissorRects = new Rectangle[8];
m_d3DeviceContext.Rasterizer.GetScissorRectangles(prevScissorRects);
Viewport viewport = new Viewport(0, 0, m_screenWidth, m_screenHeight, 0.0f, 1.0f);
m_d3DeviceContext.Rasterizer.SetViewport(viewport);
m_d3DeviceContext.OutputMerger.DepthStencilState = m_depthStencilState;
m_d3DeviceContext.OutputMerger.BlendState = m_blendState;
m_d3DeviceContext.Rasterizer.State = m_rasterizerState;
int vertexOffset = 0;
int indexOffset = 0;
for (int i = 0; i < drawData.CmdListsCount; i++)
{
ImDrawListPtr drawList = drawData.CmdListsRange[i];
for (int n = 0; n < drawList.CmdBuffer.Size; n++)
{
ImDrawCmdPtr command = drawList.CmdBuffer[n];
if (!m_boundTextures.ContainsKey(command.TextureId))
{
throw new InvalidOperationException("Requested texture was not bound to imgui, please check your binding");
}
CTextureSampler textureSampler = m_boundTextures[command.TextureId];
m_d3DeviceContext.Rasterizer.SetScissorRectangle((int)command.ClipRect.X, (int)command.ClipRect.Y, (int)command.ClipRect.Z, (int)command.ClipRect.W);
m_d3DeviceContext.PixelShader.SetSampler(0, textureSampler.SamplerState);
m_d3DeviceContext.PixelShader.SetShaderResource(0, textureSampler.Texture.GetTexture());
m_d3DeviceContext.DrawIndexed((int)command.ElemCount, indexOffset, vertexOffset);
indexOffset += (int)command.ElemCount;
}
vertexOffset += drawList.VtxBuffer.Size;
}
m_d3DeviceContext.Rasterizer.SetScissorRectangles(prevScissorRects);
m_d3DeviceContext.OutputMerger.BlendState = prevBlendState;
m_d3DeviceContext.OutputMerger.DepthStencilState = prevDepthState;
m_d3DeviceContext.Rasterizer.State = prevRasterizerState;
m_d3DeviceContext.Rasterizer.SetViewports(prevViewports);
prevRasterizerState?.Dispose();
prevBlendState?.Dispose();
prevDepthState?.Dispose();
annotation.EndEvent();
annotation.Dispose();
}
}
