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Merge branch 'vulkan_fix_docking' into docking

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This commit is contained in:
omar
2019-04-07 16:23:34 +02:00
parent 50ceb25003 9c364b16ff
commit 7056032483
3 changed files with 76 additions and 49 deletions
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121
examples/imgui_impl_vulkan.cpp
View File

@@ -65,6 +65,17 @@ struct ImGui_ImplVulkanH_WindowRenderBuffers
ImGui_ImplVulkanH_FrameRenderBuffers* FrameRenderBuffers;
};
// For multi-viewport support
struct ImGuiViewportDataVulkan
{
bool WindowOwned;
ImGui_ImplVulkanH_Window Window; // Used by secondary viewports only
ImGui_ImplVulkanH_WindowRenderBuffers RenderBuffers; // Used by all viewports
ImGuiViewportDataVulkan() { WindowOwned = false; memset(&RenderBuffers, 0, sizeof(RenderBuffers)); }
~ImGuiViewportDataVulkan() { }
};
// Vulkan data
static ImGui_ImplVulkan_InitInfo g_VulkanInitInfo = {};
static VkRenderPass g_RenderPass = VK_NULL_HANDLE;
@@ -83,9 +94,6 @@ static VkImageView g_FontView = VK_NULL_HANDLE;
static VkDeviceMemory g_UploadBufferMemory = VK_NULL_HANDLE;
static VkBuffer g_UploadBuffer = VK_NULL_HANDLE;
// Render buffers
static ImGui_ImplVulkanH_WindowRenderBuffers g_MainWindowRenderBuffers;
// Forward Declarations
bool ImGui_ImplVulkan_CreateDeviceObjects();
void ImGui_ImplVulkan_DestroyDeviceObjects();
@@ -93,6 +101,7 @@ void ImGui_ImplVulkanH_DestroyFrame(VkDevice device, ImGui_ImplVulkanH_Frame* fd
void ImGui_ImplVulkanH_DestroyFrameSemaphores(VkDevice device, ImGui_ImplVulkanH_FrameSemaphores* fsd, const VkAllocationCallbacks* allocator);
void ImGui_ImplVulkanH_DestroyFrameRenderBuffers(VkDevice device, ImGui_ImplVulkanH_FrameRenderBuffers* buffers, const VkAllocationCallbacks* allocator);
void ImGui_ImplVulkanH_DestroyWindowRenderBuffers(VkDevice device, ImGui_ImplVulkanH_WindowRenderBuffers* buffers, const VkAllocationCallbacks* allocator);
void ImGui_ImplVulkanH_DestroyAllViewportsRenderBuffers(VkDevice device, const VkAllocationCallbacks* allocator);
void ImGui_ImplVulkanH_CreateWindowSwapChain(VkPhysicalDevice physical_device, VkDevice device, ImGui_ImplVulkanH_Window* wd, const VkAllocationCallbacks* allocator, int w, int h, uint32_t min_image_count);
void ImGui_ImplVulkanH_CreateWindowCommandBuffers(VkPhysicalDevice physical_device, VkDevice device, ImGui_ImplVulkanH_Window* wd, uint32_t queue_family, const VkAllocationCallbacks* allocator);
@@ -276,8 +285,10 @@ void ImGui_ImplVulkan_RenderDrawData(ImDrawData* draw_data, VkCommandBuffer comm
ImGui_ImplVulkan_InitInfo* v = &g_VulkanInitInfo;
// Allocate array to store enough vertex/index buffers
ImGui_ImplVulkanH_WindowRenderBuffers* wrb = &g_MainWindowRenderBuffers;
// Allocate array to store enough vertex/index buffers. Each unique viewport gets its own storage.
ImGuiViewportDataVulkan* viewport_renderer_data = (ImGuiViewportDataVulkan*)draw_data->OwnerViewport->RendererUserData;
IM_ASSERT(viewport_renderer_data != NULL);
ImGui_ImplVulkanH_WindowRenderBuffers* wrb = &viewport_renderer_data->RenderBuffers;
if (wrb->FrameRenderBuffers == NULL)
{
wrb->Index = 0;
@@ -779,7 +790,7 @@ void ImGui_ImplVulkan_DestroyFontUploadObjects()
void ImGui_ImplVulkan_DestroyDeviceObjects()
{
ImGui_ImplVulkan_InitInfo* v = &g_VulkanInitInfo;
ImGui_ImplVulkanH_DestroyWindowRenderBuffers(v->Device, &g_MainWindowRenderBuffers, v->Allocator);
ImGui_ImplVulkanH_DestroyAllViewportsRenderBuffers(v->Device, v->Allocator);
ImGui_ImplVulkan_DestroyFontUploadObjects();
if (g_FontView) { vkDestroyImageView(v->Device, g_FontView, v->Allocator); g_FontView = VK_NULL_HANDLE; }
@@ -811,6 +822,10 @@ bool ImGui_ImplVulkan_Init(ImGui_ImplVulkan_InitInfo* info, VkRenderPass rend
g_RenderPass = render_pass;
ImGui_ImplVulkan_CreateDeviceObjects();
// Our render function expect RendererUserData to be storing the window render buffer we need (for the main viewport we won't use ->Window)
ImGuiViewport* main_viewport = ImGui::GetMainViewport();
main_viewport->RendererUserData = IM_NEW(ImGuiViewportDataVulkan)();
if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
ImGui_ImplVulkan_InitPlatformInterface();
@@ -833,10 +848,12 @@ void ImGui_ImplVulkan_SetMinImageCount(uint32_t min_image_count)
if (g_VulkanInitInfo.MinImageCount == min_image_count)
return;
IM_ASSERT(0); // FIXME-VIEWPORT: Unsupported. Need to recreate all swap chains!
ImGui_ImplVulkan_InitInfo* v = &g_VulkanInitInfo;
VkResult err = vkDeviceWaitIdle(v->Device);
check_vk_result(err);
ImGui_ImplVulkanH_DestroyWindowRenderBuffers(v->Device, &g_MainWindowRenderBuffers, v->Allocator);
ImGui_ImplVulkanH_DestroyAllViewportsRenderBuffers(v->Device, v->Allocator);
g_VulkanInitInfo.MinImageCount = min_image_count;
}
@@ -1211,57 +1228,56 @@ void ImGui_ImplVulkanH_DestroyWindowRenderBuffers(VkDevice device, ImGui_ImplVul
buffers->Count = 0;
}
void ImGui_ImplVulkanH_DestroyAllViewportsRenderBuffers(VkDevice device, const VkAllocationCallbacks* allocator)
{
ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
for (int n = 0; n < platform_io.Viewports.Size; n++)
if (ImGuiViewportDataVulkan* data = (ImGuiViewportDataVulkan*)platform_io.Viewports[n]->RendererUserData)
ImGui_ImplVulkanH_DestroyWindowRenderBuffers(device, &data->RenderBuffers, allocator);
}
//--------------------------------------------------------------------------------------------------------
// MULTI-VIEWPORT / PLATFORM INTERFACE SUPPORT
// This is an _advanced_ and _optional_ feature, allowing the back-end to create and handle multiple viewports simultaneously.
// If you are new to dear imgui or creating a new binding for dear imgui, it is recommended that you completely ignore this section first..
//--------------------------------------------------------------------------------------------------------
// FIXME-PLATFORM: Vulkan support unfinished
//--------------------------------------------------------------------------------------------------------
struct ImGuiViewportDataVulkan
{
ImGui_ImplVulkanH_WindowData WindowData;
ImGuiViewportDataVulkan() { }
~ImGuiViewportDataVulkan() { }
};
static void ImGui_ImplVulkan_CreateWindow(ImGuiViewport* viewport)
{
ImGuiViewportDataVulkan* data = IM_NEW(ImGuiViewportDataVulkan)();
viewport->RendererUserData = data;
ImGui_ImplVulkanH_WindowData* wd = &data->WindowData;
ImGui_ImplVulkanH_Window* wd = &data->Window;
ImGui_ImplVulkan_InitInfo* v = &g_VulkanInitInfo;
// Create surface
ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
VkResult err = (VkResult)platform_io.Platform_CreateVkSurface(viewport, (ImU64)g_Instance, (const void*)g_Allocator, (ImU64*)&wd->Surface);
VkResult err = (VkResult)platform_io.Platform_CreateVkSurface(viewport, (ImU64)v->Instance, (const void*)v->Allocator, (ImU64*)&wd->Surface);
check_vk_result(err);
// Check for WSI support
VkBool32 res;
vkGetPhysicalDeviceSurfaceSupportKHR(g_PhysicalDevice, g_QueueFamily, wd->Surface, &res);
vkGetPhysicalDeviceSurfaceSupportKHR(v->PhysicalDevice, v->QueueFamily, wd->Surface, &res);
if (res != VK_TRUE)
{
fprintf(stderr, "Error no WSI support on physical device 0\n");
exit(-1);
IM_ASSERT(0); // Error: no WSI support on physical device
return;
}
// Select Surface Format
const VkFormat requestSurfaceImageFormat[] = { VK_FORMAT_B8G8R8A8_UNORM, VK_FORMAT_R8G8B8A8_UNORM, VK_FORMAT_B8G8R8_UNORM, VK_FORMAT_R8G8B8_UNORM };
const VkColorSpaceKHR requestSurfaceColorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR;
wd->SurfaceFormat = ImGui_ImplVulkanH_SelectSurfaceFormat(g_PhysicalDevice, wd->Surface, requestSurfaceImageFormat, (size_t)IM_ARRAYSIZE(requestSurfaceImageFormat), requestSurfaceColorSpace);
wd->SurfaceFormat = ImGui_ImplVulkanH_SelectSurfaceFormat(v->PhysicalDevice, wd->Surface, requestSurfaceImageFormat, (size_t)IM_ARRAYSIZE(requestSurfaceImageFormat), requestSurfaceColorSpace);
// Select Present Mode
// FIXME-VULKAN: Even thought mailbox seems to get us maximum framerate with a single window, it halves framerate with a second window etc. (w/ Nvidia and SDK 1.82.1)
VkPresentModeKHR present_modes[] = { VK_PRESENT_MODE_MAILBOX_KHR, VK_PRESENT_MODE_IMMEDIATE_KHR, VK_PRESENT_MODE_FIFO_KHR };
wd->PresentMode = ImGui_ImplVulkanH_SelectPresentMode(g_PhysicalDevice, wd->Surface, &present_modes[0], IM_ARRAYSIZE(present_modes));
wd->PresentMode = ImGui_ImplVulkanH_SelectPresentMode(v->PhysicalDevice, wd->Surface, &present_modes[0], IM_ARRAYSIZE(present_modes));
//printf("[vulkan] Secondary window selected PresentMode = %d\n", wd->PresentMode);
// Create SwapChain, RenderPass, Framebuffer, etc.
wd->ClearEnable = (viewport->Flags & ImGuiViewportFlags_NoRendererClear) ? false : true;
ImGui_ImplVulkanH_CreateWindowDataCommandBuffers(g_PhysicalDevice, g_Device, g_QueueFamily, wd, g_Allocator);
ImGui_ImplVulkanH_CreateWindowDataSwapChainAndFramebuffer(g_PhysicalDevice, g_Device, wd, g_Allocator, (int)viewport->Size.x, (int)viewport->Size.y);
ImGui_ImplVulkanH_CreateWindow(v->Instance, v->PhysicalDevice, v->Device, wd, v->QueueFamily, v->Allocator, (int)viewport->Size.x, (int)viewport->Size.y, v->MinImageCount);
data->WindowOwned = true;
}
static void ImGui_ImplVulkan_DestroyWindow(ImGuiViewport* viewport)
@@ -1269,7 +1285,10 @@ static void ImGui_ImplVulkan_DestroyWindow(ImGuiViewport* viewport)
// The main viewport (owned by the application) will always have RendererUserData == NULL since we didn't create the data for it.
if (ImGuiViewportDataVulkan* data = (ImGuiViewportDataVulkan*)viewport->RendererUserData)
{
ImGui_ImplVulkanH_DestroyWindowData(g_Instance, g_Device, &data->WindowData, g_Allocator);
ImGui_ImplVulkan_InitInfo* v = &g_VulkanInitInfo;
if (data->WindowOwned)
ImGui_ImplVulkanH_DestroyWindow(v->Instance, v->Device, &data->Window, v->Allocator);
ImGui_ImplVulkanH_DestroyWindowRenderBuffers(v->Device, &data->RenderBuffers, v->Allocator);
IM_DELETE(data);
}
viewport->RendererUserData = NULL;
@@ -1280,31 +1299,35 @@ static void ImGui_ImplVulkan_SetWindowSize(ImGuiViewport* viewport, ImVec2 size)
ImGuiViewportDataVulkan* data = (ImGuiViewportDataVulkan*)viewport->RendererUserData;
if (data == NULL) // This is NULL for the main viewport (which is left to the user/app to handle)
return;
data->WindowData.ClearEnable = (viewport->Flags & ImGuiViewportFlags_NoRendererClear) ? false : true;
ImGui_ImplVulkanH_CreateWindowDataSwapChainAndFramebuffer(g_PhysicalDevice, g_Device, &data->WindowData, g_Allocator, (int)size.x, (int)size.y);
ImGui_ImplVulkan_InitInfo* v = &g_VulkanInitInfo;
data->Window.ClearEnable = (viewport->Flags & ImGuiViewportFlags_NoRendererClear) ? false : true;
ImGui_ImplVulkanH_CreateWindow(v->Instance, v->PhysicalDevice, v->Device, &data->Window, v->QueueFamily, v->Allocator, (int)size.x, (int)size.y, v->MinImageCount);
}
static void ImGui_ImplVulkan_RenderWindow(ImGuiViewport* viewport, void*)
{
ImGuiViewportDataVulkan* data = (ImGuiViewportDataVulkan*)viewport->RendererUserData;
ImGui_ImplVulkanH_WindowData* wd = &data->WindowData;
ImGui_ImplVulkanH_Window* wd = &data->Window;
ImGui_ImplVulkan_InitInfo* v = &g_VulkanInitInfo;
VkResult err;
ImGui_ImplVulkanH_Frame* fd = &wd->Frames[wd->FrameIndex];
ImGui_ImplVulkanH_FrameSemaphores* fsd = &wd->FrameSemaphores[wd->SemaphoreIndex];
{
ImGui_ImplVulkanH_FrameData* fd = &wd->Frames[wd->FrameIndex];
for (;;)
{
err = vkWaitForFences(g_Device, 1, &fd->Fence, VK_TRUE, 100);
err = vkWaitForFences(v->Device, 1, &fd->Fence, VK_TRUE, 100);
if (err == VK_SUCCESS) break;
if (err == VK_TIMEOUT) continue;
check_vk_result(err);
}
{
err = vkAcquireNextImageKHR(g_Device, wd->Swapchain, UINT64_MAX, fd->ImageAcquiredSemaphore, VK_NULL_HANDLE, &fd->BackbufferIndex);
err = vkAcquireNextImageKHR(v->Device, wd->Swapchain, UINT64_MAX, fsd->ImageAcquiredSemaphore, VK_NULL_HANDLE, &wd->FrameIndex);
check_vk_result(err);
fd = &wd->Frames[wd->FrameIndex];
}
{
err = vkResetCommandPool(g_Device, fd->CommandPool, 0);
err = vkResetCommandPool(v->Device, fd->CommandPool, 0);
check_vk_result(err);
VkCommandBufferBeginInfo info = {};
info.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
@@ -1319,7 +1342,7 @@ static void ImGui_ImplVulkan_RenderWindow(ImGuiViewport* viewport, void*)
VkRenderPassBeginInfo info = {};
info.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
info.renderPass = wd->RenderPass;
info.framebuffer = wd->Framebuffer[fd->BackbufferIndex];
info.framebuffer = fd->Framebuffer;
info.renderArea.extent.width = wd->Width;
info.renderArea.extent.height = wd->Height;
info.clearValueCount = (viewport->Flags & ImGuiViewportFlags_NoRendererClear) ? 0 : 1;
@@ -1328,28 +1351,27 @@ static void ImGui_ImplVulkan_RenderWindow(ImGuiViewport* viewport, void*)
}
}
ImGui_ImplVulkan_RenderDrawData(viewport->DrawData, wd->Frames[wd->FrameIndex].CommandBuffer);
ImGui_ImplVulkan_RenderDrawData(viewport->DrawData, fd->CommandBuffer);
{
ImGui_ImplVulkanH_FrameData* fd = &wd->Frames[wd->FrameIndex];
vkCmdEndRenderPass(fd->CommandBuffer);
{
VkPipelineStageFlags wait_stage = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
VkSubmitInfo info = {};
info.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
info.waitSemaphoreCount = 1;
info.pWaitSemaphores = &fd->ImageAcquiredSemaphore;
info.pWaitSemaphores = &fsd->ImageAcquiredSemaphore;
info.pWaitDstStageMask = &wait_stage;
info.commandBufferCount = 1;
info.pCommandBuffers = &fd->CommandBuffer;
info.signalSemaphoreCount = 1;
info.pSignalSemaphores = &fd->RenderCompleteSemaphore;
info.pSignalSemaphores = &fsd->RenderCompleteSemaphore;
err = vkEndCommandBuffer(fd->CommandBuffer);
check_vk_result(err);
err = vkResetFences(g_Device, 1, &fd->Fence);
err = vkResetFences(v->Device, 1, &fd->Fence);
check_vk_result(err);
err = vkQueueSubmit(g_Queue, 1, &info, fd->Fence);
err = vkQueueSubmit(v->Queue, 1, &info, fd->Fence);
check_vk_result(err);
}
}
@@ -1358,22 +1380,25 @@ static void ImGui_ImplVulkan_RenderWindow(ImGuiViewport* viewport, void*)
static void ImGui_ImplVulkan_SwapBuffers(ImGuiViewport* viewport, void*)
{
ImGuiViewportDataVulkan* data = (ImGuiViewportDataVulkan*)viewport->RendererUserData;
ImGui_ImplVulkanH_WindowData* wd = &data->WindowData;
ImGui_ImplVulkanH_Window* wd = &data->Window;
ImGui_ImplVulkan_InitInfo* v = &g_VulkanInitInfo;
VkResult err;
uint32_t PresentIndex = wd->FrameIndex;
uint32_t present_index = wd->FrameIndex;
ImGui_ImplVulkanH_FrameData* fd = &wd->Frames[PresentIndex];
ImGui_ImplVulkanH_FrameSemaphores* fsd = &wd->FrameSemaphores[wd->SemaphoreIndex];
VkPresentInfoKHR info = {};
info.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR;
info.waitSemaphoreCount = 1;
info.pWaitSemaphores = &fd->RenderCompleteSemaphore;
info.pWaitSemaphores = &fsd->RenderCompleteSemaphore;
info.swapchainCount = 1;
info.pSwapchains = &wd->Swapchain;
info.pImageIndices = &fd->BackbufferIndex;
err = vkQueuePresentKHR(g_Queue, &info);
info.pImageIndices = &present_index;
err = vkQueuePresentKHR(v->Queue, &info);
check_vk_result(err);
wd->FrameIndex = (wd->FrameIndex + 1) % IMGUI_VK_QUEUED_FRAMES;
wd->FrameIndex = (wd->FrameIndex + 1) % wd->ImageCount; // This is for the next vkWaitForFences()
wd->SemaphoreIndex = (wd->SemaphoreIndex + 1) % wd->ImageCount; // Now we can use the next set of semaphores
}
void ImGui_ImplVulkan_InitPlatformInterface()

1
imgui.cpp
View File

@@ -4040,6 +4040,7 @@ static void SetupViewportDrawData(ImGuiViewportP* viewport, ImVector<ImDrawList*
draw_data->DisplayPos = viewport->Pos;
draw_data->DisplaySize = viewport->Size;
draw_data->FramebufferScale = ImGui::GetIO().DisplayFramebufferScale; // FIXME-VIEWPORT: This may vary on a per-monitor/viewport basis?
draw_data->OwnerViewport = viewport;
for (int n = 0; n < draw_lists->Size; n++)
{
draw_data->TotalVtxCount += draw_lists->Data[n]->VtxBuffer.Size;

3
imgui.h
View File

@@ -2019,11 +2019,12 @@ struct ImDrawData
ImVec2 DisplayPos; // Upper-left position of the viewport to render (== upper-left of the orthogonal projection matrix to use)
ImVec2 DisplaySize; // Size of the viewport to render (== io.DisplaySize for the main viewport) (DisplayPos + DisplaySize == lower-right of the orthogonal projection matrix to use)
ImVec2 FramebufferScale; // Amount of pixels for each unit of DisplaySize. Based on io.DisplayFramebufferScale. Generally (1,1) on normal display, (2,2) on OSX with Retina display.
ImGuiViewport* OwnerViewport; // Viewport carrying the ImDrawData instance, might be of use to the renderer (generally not).
// Functions
ImDrawData() { Valid = false; Clear(); }
~ImDrawData() { Clear(); }
void Clear() { Valid = false; CmdLists = NULL; CmdListsCount = TotalVtxCount = TotalIdxCount = 0; DisplayPos = DisplaySize = FramebufferScale = ImVec2(0.f, 0.f); } // The ImDrawList are owned by ImGuiContext!
void Clear() { Valid = false; CmdLists = NULL; CmdListsCount = TotalVtxCount = TotalIdxCount = 0; DisplayPos = DisplaySize = FramebufferScale = ImVec2(0.f, 0.f); OwnerViewport = NULL; } // The ImDrawList are owned by ImGuiContext!
IMGUI_API void DeIndexAllBuffers(); // Helper to convert all buffers from indexed to non-indexed, in case you cannot render indexed. Note: this is slow and most likely a waste of resources. Always prefer indexed rendering!
IMGUI_API void ScaleClipRects(const ImVec2& fb_scale); // Helper to scale the ClipRect field of each ImDrawCmd. Use if your final output buffer is at a different scale than ImGui expects, or if there is a difference between your window resolution and framebuffer resolution.
};