Function ImGui_ImplDX11_SetupRenderState

KBotExt/imgui/imgui_impl_dx11.cpp:81–116

Functions

// Functions
static void ImGui_ImplDX11_SetupRenderState(ImDrawData* draw_data, ID3D11DeviceContext* ctx)
{
	ImGui_ImplDX11_Data* bd = ImGui_ImplDX11_GetBackendData();

	// Setup viewport
	D3D11_VIEWPORT vp;
	memset(&vp, 0, sizeof(D3D11_VIEWPORT));
	vp.Width = draw_data->DisplaySize.x;
	vp.Height = draw_data->DisplaySize.y;
	vp.MinDepth = 0.0f;
	vp.MaxDepth = 1.0f;
	vp.TopLeftX = vp.TopLeftY = 0;
	ctx->RSSetViewports(1, &vp);

	// Setup shader and vertex buffers
	unsigned int stride = sizeof(ImDrawVert);
	unsigned int offset = 0;
	ctx->IASetInputLayout(bd->pInputLayout);
	ctx->IASetVertexBuffers(0, 1, &bd->pVB, &stride, &offset);
	ctx->IASetIndexBuffer(bd->pIB, sizeof(ImDrawIdx) == 2 ? DXGI_FORMAT_R16_UINT : DXGI_FORMAT_R32_UINT, 0);
	ctx->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
	ctx->VSSetShader(bd->pVertexShader, nullptr, 0);
	ctx->VSSetConstantBuffers(0, 1, &bd->pVertexConstantBuffer);
	ctx->PSSetShader(bd->pPixelShader, nullptr, 0);
	ctx->PSSetSamplers(0, 1, &bd->pFontSampler);
	ctx->GSSetShader(nullptr, nullptr, 0);
	ctx->HSSetShader(nullptr, nullptr, 0); // In theory we should backup and restore this as well.. very infrequently used..
	ctx->DSSetShader(nullptr, nullptr, 0); // In theory we should backup and restore this as well.. very infrequently used..
	ctx->CSSetShader(nullptr, nullptr, 0); // In theory we should backup and restore this as well.. very infrequently used..

	// Setup blend state
	const float blend_factor[4] = { 0.f, 0.f, 0.f, 0.f };
	ctx->OMSetBlendState(bd->pBlendState, blend_factor, 0xffffffff);
	ctx->OMSetDepthStencilState(bd->pDepthStencilState, 0);
	ctx->RSSetState(bd->pRasterizerState);
}

// Render function
void ImGui_ImplDX11_RenderDrawData(ImDrawData* draw_data)