internal GraphicsContext(IntPtr graphics_surface_ptr, int width, int height)
{
var timer = Stopwatch.StartNew();
Bgfx.SetPlatformData(new PlatformData
{
WindowHandle = graphics_surface_ptr
});
var bgfx_callback_handler = new BgfxCallbackHandler();
var settings = new InitSettings
{
Backend = RendererBackend.Default,
ResetFlags = ResetFlags.Vsync,
Width = width,
Height = height,
CallbackHandler = bgfx_callback_handler
};
Bgfx.Init(settings);
Console.WriteLine($" > GFX INIT : {timer.Elapsed.TotalSeconds.ToString()}");
var caps = Bgfx.GetCaps();
Info = new GraphicsInfo(caps.Backend, caps.MaxTextureSize);
Console.WriteLine($"GRAPHICS BACKEND : {Info.RendererBackend.ToString()}");
index_buffers = new IndexBuffer[16];
}
static unsafe void RenderThread(Sample sample)
{
// initialize the renderer
Bgfx.Init();
Bgfx.Reset(sample.WindowWidth, sample.WindowHeight, ResetFlags.Vsync);
// enable debug text
Bgfx.SetDebugFeatures(DebugFeatures.DisplayText);
// set view 0 clear state
Bgfx.SetViewClear(0, ClearTargets.Color | ClearTargets.Depth, 0x303030ff);
// check capabilities
var caps = Bgfx.GetCaps();
var computeSupported = caps.SupportedFeatures.HasFlag(DeviceFeatures.Compute);
var indirectSupported = caps.SupportedFeatures.HasFlag(DeviceFeatures.DrawIndirect);
if (computeSupported)
{
RunCompute(sample, indirectSupported);
}
else
{
RunUnsupported(sample);
}
// clean up
Bgfx.Shutdown();
}
//!!!!
//static void Listener_eventOccurred( string name )
//{
// if( RenderSystemEvent != null )
// {
// RenderSystemEvent type;
// if( name == "DeviceLost" )
// type = NeoAxis.RenderSystemEvent.DeviceLost;
// else if( name == "DeviceRestored" )
// type = NeoAxis.RenderSystemEvent.DeviceRestored;
// else
// {
// Log.Fatal( "RenderSystem: Unknown render system event \"{0}\".", name );
// return;
// }
// RenderSystemEvent( type );
// }
//}
static void InitGPUSettingsAndCapabilities()
{
Capabilities = Bgfx.GetCaps();
Log.InvisibleInfo("Renderer: Backend: " + Capabilities.Backend.ToString());
Log.InvisibleInfo("Renderer: Adapter vendor: " + Capabilities.CurrentAdapter.Vendor.ToString());
Log.InvisibleInfo("Renderer: Adapter device: " + Capabilities.CurrentAdapter.DeviceId.ToString());
Log.InvisibleInfo("Renderer: Adapter description: " + Bgfx.GetGPUDescription());
Log.InvisibleInfo("Renderer: -------------------------");
}
private void ImplInitialize(IntPtr graphics_surface_ptr, int width, int height)
{
Bgfx.SetPlatformData(new PlatformData
{
WindowHandle = graphics_surface_ptr
});
var bgfx_callback_handler = new BgfxCallbackHandler();
var settings = new InitSettings
{
Backend = RendererBackend.Default,
ResetFlags = ResetFlags.Vsync,
Width = width,
Height = height,
CallbackHandler = bgfx_callback_handler
};
Bgfx.Init(settings);
var caps = Bgfx.GetCaps();
GraphicsBackend gfx_backend = GraphicsBackend.OpenGL;
switch (caps.Backend)
{
case RendererBackend.OpenGL: gfx_backend = GraphicsBackend.OpenGL; break;
case RendererBackend.Direct3D11:
case RendererBackend.Direct3D12:
case RendererBackend.Direct3D9:
gfx_backend = GraphicsBackend.OpenGL; break;
}
Info = new GraphicsInfo(gfx_backend, caps.MaxTextureSize);
}
static unsafe void RenderThread(Sample sample)
{
// initialize the renderer
Bgfx.Init();
Bgfx.Reset(sample.WindowWidth, sample.WindowHeight, ResetFlags.Vsync);
// enable debug text
Bgfx.SetDebugFeatures(DebugFeatures.DisplayText);
// load shaders
var programTextureLighting = ResourceLoader.LoadProgram("vs_stencil_texture_lighting", "fs_stencil_texture_lighting");
var programColorLighting = ResourceLoader.LoadProgram("vs_stencil_color_lighting", "fs_stencil_color_lighting");
var programColorTexture = ResourceLoader.LoadProgram("vs_stencil_color_texture", "fs_stencil_color_texture");
var programColorBlack = ResourceLoader.LoadProgram("vs_stencil_color", "fs_stencil_color_black");
var programTexture = ResourceLoader.LoadProgram("vs_stencil_texture", "fs_stencil_texture");
// load meshes
var bunnyMesh = ResourceLoader.LoadMesh("bunny.bin");
var columnMesh = ResourceLoader.LoadMesh("column.bin");
var hplaneMesh = new Mesh(MemoryBlock.FromArray(StaticMeshes.HorizontalPlane), PosNormalTexcoordVertex.Layout, StaticMeshes.PlaneIndices);
var vplaneMesh = new Mesh(MemoryBlock.FromArray(StaticMeshes.VerticalPlane), PosNormalTexcoordVertex.Layout, StaticMeshes.PlaneIndices);
// load textures
var figureTex = ResourceLoader.LoadTexture("figure-rgba.dds");
var flareTex = ResourceLoader.LoadTexture("flare.dds");
var fieldstoneTex = ResourceLoader.LoadTexture("fieldstone-rgba.dds");
// create uniforms
var colorTextureHandle = new Uniform("u_texColor", UniformType.Sampler);
var uniforms = new Uniforms();
uniforms.SubmitConstUniforms();
// light colors
uniforms.LightColor = new[] {
new Vector4(1.0f, 0.7f, 0.2f, 0.0f), // yellow
new Vector4(0.7f, 0.2f, 1.0f, 0.0f), // purple
new Vector4(0.2f, 1.0f, 0.7f, 0.0f), // cyan
new Vector4(1.0f, 0.4f, 0.2f, 0.0f) // orange
};
// camera
var camera = new Camera(60.0f, sample.WindowWidth, sample.WindowHeight, 0.1f, 100.0f);
camera.Position = new Vector3(0.0f, 18.0f, -40.0f);
// start the frame clock
var clock = new Clock();
clock.Start();
// check caps and stats, for testing purposes
Bgfx.GetCaps();
Bgfx.GetStats();
// main loop
while (sample.ProcessEvents(ResetFlags.Vsync))
{
// tick the clock
var elapsed = clock.Frame();
var time = clock.TotalTime();
// write some debug text
Bgfx.DebugTextClear();
Bgfx.DebugTextWrite(0, 1, DebugColor.White, DebugColor.Blue, "SharpBgfx/Samples/13-Stencil");
Bgfx.DebugTextWrite(0, 2, DebugColor.White, DebugColor.Cyan, "Description: Stencil reflections.");
Bgfx.DebugTextWrite(0, 3, DebugColor.White, DebugColor.Cyan, "Frame: {0:F3} ms", elapsed * 1000);
// clear the background
Bgfx.SetViewClear(BaseId, ClearTargets.Color | ClearTargets.Depth | ClearTargets.Stencil, 0x30303000);
Bgfx.SetViewRect(BaseId, 0, 0, sample.WindowWidth, sample.WindowHeight);
Bgfx.Touch(BaseId);
// set view params for each pass
var viewMtx = camera.GetViewMatrix();
var projMtx = camera.GetProjectionMatrix();
for (byte i = PassId0; i <= PassId4; i++)
{
Bgfx.SetViewRect(i, 0, 0, sample.WindowWidth, sample.WindowHeight);
Bgfx.SetViewTransform(i, (float *)&viewMtx, (float *)&projMtx);
}
// first pass - draw ground plane
var floorMtx = FloorTransform;
hplaneMesh.Submit(PassId0, programColorBlack, &floorMtx, StateGroups[PrebuiltRenderState.StencilReflectionCraftStencil], uniforms);
// second pass - reflected objects
Bgfx.SetViewClear(PassId1, ClearTargets.Depth, 0);
uniforms.AmbientPass = true;
uniforms.LightingPass = true;
uniforms.Color = new Vector4(0.70f, 0.65f, 0.60f, 0.8f);
uniforms.LightCount = LightCount;
// light positions
var lightPositions = new Vector4[LightCount];
var reflectedLights = new Vector4[LightCount];
for (int i = 0; i < lightPositions.Length; i++)
{
var v3 = new Vector3(
(float)Math.Sin(time * 1.1 + i * 0.03 + i * 1.07 * Math.PI / 2) * 20.0f,
8.0f + (1.0f - (float)Math.Cos(time * 1.5 + i * 0.29 + 1.49f * Math.PI / 2)) * 4.0f,
(float)Math.Cos(time * 1.3 + i * 0.13 + i * 1.79 * Math.PI / 2) * 20.0f
);
lightPositions[i] = new Vector4(v3, 15.0f);
reflectedLights[i] = new Vector4(Vector3.Transform(v3, ReflectionTransform), 15.0f);
}
uniforms.LightPosRadius = reflectedLights;
var bunnyMtx =
Matrix4x4.CreateScale(5) *
Matrix4x4.CreateRotationY(time - 1.56f) *
Matrix4x4.CreateTranslation(0.0f, 2.0f, 0.0f);
var reflectedBunnyMtx = bunnyMtx * ReflectionTransform;
bunnyMesh.Submit(PassId1, programColorLighting, &reflectedBunnyMtx, StateGroups[PrebuiltRenderState.StencilReflectionDrawReflected], uniforms);
for (int i = 0; i < 4; i++)
{
var mtx = ColumnTransforms[i] * ReflectionTransform;
columnMesh.Submit(PassId1, programColorLighting, &mtx, StateGroups[PrebuiltRenderState.StencilReflectionDrawReflected], uniforms);
}
// third pass - blend the plane and reflections
uniforms.LightPosRadius = lightPositions;
hplaneMesh.Submit(PassId2, programTextureLighting, &floorMtx, StateGroups[PrebuiltRenderState.StencilReflectionBlendPlane], uniforms, fieldstoneTex, colorTextureHandle);
// fourth pass - draw the solid objects
bunnyMesh.Submit(PassId3, programColorLighting, &bunnyMtx, StateGroups[PrebuiltRenderState.StencilReflectionDrawScene], uniforms);
for (int i = 0; i < 4; i++)
{
var mtx = ColumnTransforms[i];
columnMesh.Submit(PassId3, programColorLighting, &mtx, StateGroups[PrebuiltRenderState.StencilReflectionDrawScene], uniforms);
}
// fifth pass - draw the lights as objects
for (int i = 0; i < LightCount; i++)
{
var c = uniforms.LightColor[i];
uniforms.Color = new Vector4(c.X, c.Y, c.Z, 0.8f);
var p = lightPositions[i];
var mtx = Matrix4x4.CreateScale(1.5f) * Matrix4x4.CreateBillboard(new Vector3(p.X, p.Y, p.Z), camera.Position, Vector3.UnitY, -Vector3.UnitZ);
vplaneMesh.Submit(PassId4, programColorTexture, &mtx, StateGroups[PrebuiltRenderState.CustomBlendLightTexture], uniforms, flareTex, colorTextureHandle);
}
// advance to the next frame. Rendering thread will be kicked to
// process submitted rendering primitives.
Bgfx.Frame();
}
// clean up
bunnyMesh.Dispose();
columnMesh.Dispose();
hplaneMesh.Dispose();
vplaneMesh.Dispose();
figureTex.Dispose();
fieldstoneTex.Dispose();
flareTex.Dispose();
programTextureLighting.Dispose();
programColorLighting.Dispose();
programColorTexture.Dispose();
programColorBlack.Dispose();
programTexture.Dispose();
colorTextureHandle.Dispose();
uniforms.Dispose();
Bgfx.Shutdown();
}
static unsafe void RenderThread(Sample sample)
{
// initialize the renderer
Bgfx.Init();
Bgfx.Reset(sample.WindowWidth, sample.WindowHeight, ResetFlags.Vsync);
// enable debug text
Bgfx.SetDebugFeatures(DebugFeatures.DisplayText);
// set view 0 clear state
Bgfx.SetViewClear(0, ClearTargets.Color | ClearTargets.Depth, 0x303030ff);
// create vertex and index buffers
var vbh = Cube.CreateVertexBuffer();
var ibh = Cube.CreateIndexBuffer();
// load shaders
var program = ResourceLoader.LoadProgram("vs_instancing", "fs_instancing");
// start the frame clock
var clock = new Clock();
clock.Start();
// getting caps
var caps = Bgfx.GetCaps();
// main loop
while (sample.ProcessEvents(ResetFlags.Vsync))
{
// set view 0 viewport
Bgfx.SetViewRect(0, 0, 0, sample.WindowWidth, sample.WindowHeight);
// view transforms
var viewMatrix = Matrix4x4.CreateLookAt(new Vector3(0.0f, 0.0f, -35.0f), Vector3.Zero, Vector3.UnitY);
var projMatrix = Matrix4x4.CreatePerspectiveFieldOfView((float)Math.PI / 3, (float)sample.WindowWidth / sample.WindowHeight, 0.1f, 100.0f);
Bgfx.SetViewTransform(0, &viewMatrix.M11, &projMatrix.M11);
// make sure view 0 is cleared if no other draw calls are submitted
Bgfx.Touch(0);
// tick the clock
var elapsed = clock.Frame();
var time = clock.TotalTime();
// write some debug text
Bgfx.DebugTextClear();
Bgfx.DebugTextWrite(0, 1, DebugColor.White, DebugColor.Blue, "SharpBgfx/Samples/05-Instancing");
Bgfx.DebugTextWrite(0, 2, DebugColor.White, DebugColor.Cyan, "Description: Geometry instancing.");
Bgfx.DebugTextWrite(0, 3, DebugColor.White, DebugColor.Cyan, "Frame: {0:F3} ms", elapsed * 1000);
// check caps
if ((caps.SupportedFeatures & DeviceFeatures.Instancing) != DeviceFeatures.Instancing)
{
// instancing not supported
Bgfx.DebugTextWrite(0, 3, DebugColor.White, DebugColor.Red, "Instancing not supported!");
}
else
{
const int instanceStride = 80;
const int instanceCount = 121;
var idb = new InstanceDataBuffer(instanceCount, instanceStride);
// fill in InstanceDataBuffer
byte *dataPtr = (byte *)idb.Data.ToPointer();
// TODO: extract idb->data->num
for (int y = 0; y < 11; y++)
{
for (int x = 0; x < 11; x++)
{
float *matrix = (float *)dataPtr;
var realMatrix = Matrix4x4.CreateFromYawPitchRoll(time + x * 0.21f, time + y * 0.37f, 0f);
realMatrix.M41 = -15.0f + x * 3.0f;
realMatrix.M42 = -15.0f + y * 3.0f;
realMatrix.M43 = 0.0f;
// TODO: use proper copy function, not a bycicle
float *realMatrixPtr = &realMatrix.M11;
for (int i = 0; i < 16; i++)
{
matrix[i] = realMatrixPtr[i];
}
float *color = (float *)(dataPtr + 64);
color[0] = (float)Math.Sin(time + x / 11.0f) * 0.5f + 0.5f;
color[1] = (float)Math.Cos(time + y / 11.0f) * 0.5f + 0.5f;
color[2] = (float)Math.Sin(time * 3.0f) * 0.5f + 0.5f;
color[3] = 1.0f;
dataPtr += instanceStride;
}
}
// set pipeline states
Bgfx.SetVertexBuffer(0, vbh);
Bgfx.SetIndexBuffer(ibh);
Bgfx.SetInstanceDataBuffer(ref idb);
Bgfx.SetRenderState(RenderState.Default);
// submit primitives
Bgfx.Submit(0, program);
}
// advance to the next frame. Rendering thread will be kicked to
// process submitted rendering primitives.
Bgfx.Frame();
}
// clean up
ibh.Dispose();
vbh.Dispose();
program.Dispose();
Bgfx.Shutdown();
}
private static void Main(string[] args)
{
var platform = "x64";
if (IntPtr.Size == 4)
{
platform = "x86";
}
NativeMethods.LoadLibrary($"{platform}/SDL2.dll");
Bgfx.InitializeLibrary();
ushort resolutionWidth = 800;
ushort resolutionHeight = 600;
var windowhandle = SDL.SDL_CreateWindow("hello", 10, 10, resolutionWidth, resolutionHeight,
SDL.SDL_WindowFlags.SDL_WINDOW_ALLOW_HIGHDPI);
var wm = new SDL.SDL_SysWMinfo();
SDL.SDL_GetWindowWMInfo(windowhandle, ref wm);
Bgfx.SetPlatformData(wm.info.win.window);
var init = Bgfx.Initialize(resolutionWidth, resolutionHeight, Bgfx.RendererType.DIRECT_3D11);
ImGui.SetCurrentContext(ImGui.CreateContext());
var IO = ImGui.GetIO();
IO.ImeWindowHandle = wm.info.win.window;
//IO.BackendFlags |= ImGuiBackendFlags.HasMouseCursors; // We can honor GetMouseCursor() values (optional)
//IO.BackendFlags |= ImGuiBackendFlags.HasSetMousePos; // We can honor io.WantSetMousePos requests (optional, rarely used)
//IO.BackendPlatformName = new NullTerminatedString("imgui_impl_win32".ToCharArray());
IO.KeyMap[(int)ImGuiKey.Tab] = (int)SDL.SDL_Scancode.SDL_SCANCODE_TAB;
IO.KeyMap[(int)ImGuiKey.LeftArrow] = (int)SDL.SDL_Scancode.SDL_SCANCODE_LEFT;
IO.KeyMap[(int)ImGuiKey.RightArrow] = (int)SDL.SDL_Scancode.SDL_SCANCODE_RIGHT;
IO.KeyMap[(int)ImGuiKey.UpArrow] = (int)SDL.SDL_Scancode.SDL_SCANCODE_UP;
IO.KeyMap[(int)ImGuiKey.DownArrow] = (int)SDL.SDL_Scancode.SDL_SCANCODE_DOWN;
IO.KeyMap[(int)ImGuiKey.PageUp] = (int)SDL.SDL_Scancode.SDL_SCANCODE_PAGEUP;
IO.KeyMap[(int)ImGuiKey.PageDown] = (int)SDL.SDL_Scancode.SDL_SCANCODE_PAGEDOWN;
IO.KeyMap[(int)ImGuiKey.Home] = (int)SDL.SDL_Scancode.SDL_SCANCODE_HOME;
IO.KeyMap[(int)ImGuiKey.End] = (int)SDL.SDL_Scancode.SDL_SCANCODE_END;
IO.KeyMap[(int)ImGuiKey.Insert] = (int)SDL.SDL_Scancode.SDL_SCANCODE_INSERT;
IO.KeyMap[(int)ImGuiKey.Delete] = (int)SDL.SDL_Scancode.SDL_SCANCODE_DELETE;
IO.KeyMap[(int)ImGuiKey.Backspace] = (int)SDL.SDL_Scancode.SDL_SCANCODE_BACKSPACE;
IO.KeyMap[(int)ImGuiKey.Space] = (int)SDL.SDL_Scancode.SDL_SCANCODE_SPACE;
IO.KeyMap[(int)ImGuiKey.Enter] = (int)SDL.SDL_Scancode.SDL_SCANCODE_KP_ENTER;
IO.KeyMap[(int)ImGuiKey.Escape] = (int)SDL.SDL_Scancode.SDL_SCANCODE_ESCAPE;
IO.KeyMap[(int)ImGuiKey.KeyPadEnter] = (int)SDL.SDL_Scancode.SDL_SCANCODE_RETURN;
IO.KeyMap[(int)ImGuiKey.A] = (int)SDL.SDL_Scancode.SDL_SCANCODE_A;
IO.KeyMap[(int)ImGuiKey.C] = (int)SDL.SDL_Scancode.SDL_SCANCODE_C;
IO.KeyMap[(int)ImGuiKey.V] = (int)SDL.SDL_Scancode.SDL_SCANCODE_V;
IO.KeyMap[(int)ImGuiKey.X] = (int)SDL.SDL_Scancode.SDL_SCANCODE_X;
IO.KeyMap[(int)ImGuiKey.Y] = (int)SDL.SDL_Scancode.SDL_SCANCODE_Y;
IO.KeyMap[(int)ImGuiKey.Z] = (int)SDL.SDL_Scancode.SDL_SCANCODE_Z;
IO.Fonts.AddFontDefault();
IO.Fonts.GetTexDataAsRGBA32(out IntPtr pixels, out var fwidth, out var fheight);
IO.Fonts.SetTexID(new IntPtr(Bgfx.CreateTexture2D((ushort)fwidth, (ushort)fheight, false, 1,
(Bgfx.TextureFormat)Bgfx.TextureFormat.RGBA8,
(Bgfx.SamplerFlags.U_CLAMP | Bgfx.SamplerFlags.V_CLAMP | Bgfx.SamplerFlags.MIN_POINT |
Bgfx.SamplerFlags.MAG_POINT | Bgfx.SamplerFlags.MIP_POINT),
Bgfx.MakeRef(pixels, (uint)(4 * fwidth * fheight))).Idx));
Bgfx.SetViewClear(0, (ushort)(Bgfx.ClearFlags.COLOR | Bgfx.ClearFlags.DEPTH), 0x6495edff, 0, 0);
Bgfx.SetViewMode(0, Bgfx.ViewMode.SEQUENTIAL);
Bgfx.SetViewMode(255, Bgfx.ViewMode.SEQUENTIAL);
Bgfx.SetDebug(Bgfx.DebugFlags.NONE);
Bgfx.Reset(resolutionWidth, resolutionHeight, Bgfx.ResetFlags.VSYNC | Bgfx.ResetFlags.MSAA_X4, init.format);
var running = true;
var bgfxcaps = Bgfx.GetCaps();
mtxOrtho(out var ortho, 0, resolutionWidth, resolutionHeight, 0, 0, 1000.0f, 0, bgfxcaps.Homogenousdepth);
var ImguiVertexLayout = new Bgfx.VertexLayout();
ImguiVertexLayout.Begin(Bgfx.RendererType.NOOP);
ImguiVertexLayout.Add(Bgfx.Attrib.POSITION, Bgfx.AttribType.FLOAT, 2, false, false);
ImguiVertexLayout.Add(Bgfx.Attrib.TEX_COORD0, Bgfx.AttribType.FLOAT, 2, false, false);
ImguiVertexLayout.Add(Bgfx.Attrib.COLOR0, Bgfx.AttribType.UINT8, 4, true, false);
ImguiVertexLayout.End();
var WhitePixelTexture = Bgfx.CreateTexture2D(1, 1, false, 1, Bgfx.TextureFormat.RGBA8, Bgfx.SamplerFlags.V_CLAMP | Bgfx.SamplerFlags.U_CLAMP | Bgfx.SamplerFlags.MIN_POINT | Bgfx.SamplerFlags.MAG_POINT | Bgfx.SamplerFlags.MIP_POINT, new uint[] { 0x0000ffff });
var TextureUniform = Bgfx.CreateUniform("s_texture", Bgfx.UniformType.SAMPLER, 1);
var ImGuiShader = LoadEffect("vs_imgui.bin", "fs_imgui.bin");
while (running)
{
SDL.SDL_PollEvent(out var Event);
if (Event.window.type == SDL.SDL_EventType.SDL_QUIT)
{
running = false;
}
var mouseState = SDL.SDL_GetMouseState(out var mouseX, out var mouseY);
IO.MouseDown[0] = (mouseState & SDL.SDL_BUTTON(SDL.SDL_BUTTON_LEFT)) != 0;
IO.MouseDown[1] = (mouseState & SDL.SDL_BUTTON(SDL.SDL_BUTTON_RIGHT)) != 0;
IO.MouseDown[2] = (mouseState & SDL.SDL_BUTTON(SDL.SDL_BUTTON_MIDDLE)) != 0;
SDL.SDL_GetWindowPosition(windowhandle, out var wx, out var wy);
SDL.SDL_GetGlobalMouseState(out mouseX, out mouseY);
mouseX -= wx;
mouseY -= wy;
IO.MousePosPrev = IO.MousePos;
IO.MousePos = new Vector2(mouseX, mouseY);
ImGui.NewFrame();
//ImGui.SetNextWindowSize(new Vector2(200);
if (ImGui.Begin("test"))
{
if (ImGui.Button("click OS popup"))
{
SDL.SDL_ShowSimpleMessageBox(SDL.SDL_MessageBoxFlags.SDL_MESSAGEBOX_INFORMATION, "Cliked Button", "Click Message", windowhandle);
}
if (ImGui.Button("modal popup"))
{
ImGui.OpenPopup("modal popup");
}
ImGui.Text("Hello");
if (ImGui.BeginPopupModal("modal popup"))
{
if (ImGui.Button("clicked"))
{
ImGui.CloseCurrentPopup();
}
ImGui.EndPopup();
}
}
ImGui.End();
ImGui.EndFrame();
ImGui.Render();
Bgfx.SetViewRect(0, 0, 0, resolutionWidth, resolutionHeight);
Bgfx.SetViewRect(255, 0, 0, resolutionWidth, resolutionHeight);
IO.DisplaySize = new Vector2(resolutionWidth, resolutionHeight);
IO.DisplayFramebufferScale = new Vector2(1);
Bgfx.Touch(0);
{
var drawdata = ImGui.GetDrawData();
ushort viewID = 0;
Bgfx.SetViewTransform(viewID, null, ortho);
{
// Render command lists
for (int ii = 0, num = drawdata.CmdListsCount; ii < num; ++ii)
{
var drawList = drawdata.CmdListsRange[ii];
var numVertices = drawList.VtxBuffer.Size;
var numIndices = drawList.IdxBuffer.Size;
var tib = Bgfx.AllocateTransientIndexBuffer((uint)numIndices);
var tvb = Bgfx.AllocateTransientVertexBuffer((uint)numVertices, ImguiVertexLayout);
tvb.CopyIntoBuffer(drawList.VtxBuffer.Data,
(uint)numVertices * (uint)Unsafe.SizeOf <ImDrawVert>());
tib.CopyIntoBuffer(drawList.IdxBuffer.Data,
(uint)numIndices * (uint)Unsafe.SizeOf <ushort>());
uint offset = 0;
for (int i = 0; i < drawList.CmdBuffer.Size; i++)
{
var cmd = drawList.CmdBuffer[i];
if (cmd.UserCallback != IntPtr.Zero)
{
// cmd->UserCallback(drawList, cmd);
}
else if (cmd.ElemCount > 0)
{
var state = Bgfx.StateFlags.WRITE_RGB
| Bgfx.StateFlags.WRITE_A
| Bgfx.StateFlags.MSAA
;
var texHandle = new Bgfx.TextureHandle();
if (cmd.TextureId.ToInt32() != 0)
{
texHandle.Idx = (ushort)cmd.TextureId.ToInt32();
}
else
{
texHandle.Idx = WhitePixelTexture.Idx;
}
state |= Bgfx.STATE_BLEND_FUNC(Bgfx.StateFlags.BLEND_SRC_ALPHA, Bgfx.StateFlags.BLEND_INV_SRC_ALPHA);
ushort xx = (ushort)((cmd.ClipRect.X > 0.0f ? cmd.ClipRect.X : 0.0f));
ushort yy = (ushort)((cmd.ClipRect.Y > 0.0f ? cmd.ClipRect.Y : 0.0f));
ushort zz = (ushort)((cmd.ClipRect.Z > 65535.0f ? 65535.0f : cmd.ClipRect.Z) - xx);
ushort ww = (ushort)((cmd.ClipRect.W > 65535.0f ? 65535.0f : cmd.ClipRect.W) - yy);
Bgfx.SetScissor(xx, yy, zz, ww);
Bgfx.SetState(state, 0);
Bgfx.SetTexture(0, TextureUniform, texHandle);
Bgfx.SetTransientVertexBuffer(0, tvb, 0, (uint)numVertices);
Bgfx.SetTransientIndexBuffer(tib, offset, cmd.ElemCount);
Bgfx.Submit(viewID, ImGuiShader.program, 0, false);
}
offset += cmd.ElemCount;
}
}
}
}
Bgfx.Frame(false);
}
}
