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Viewport: Removed back-end renderer code that implied we need to clear with WindowBg color. Added NoRendererClear flag. (#1542, #1042)

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This commit is contained in:
omar
2018-03-15 17:52:53 +01:00
parent 09d8943967
commit 8364d1ca6c
8 changed files with 35 additions and 22 deletions
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6
examples/imgui_impl_dx10.cpp
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@ -587,10 +587,10 @@ static void ImGui_ImplDX10_ResizeViewport(ImGuiViewport* viewport, ImVec2 size)
static void ImGui_ImplDX10_RenderViewport(ImGuiViewport* viewport)
{
ImGuiPlatformDataDx10* data = (ImGuiPlatformDataDx10*)viewport->RendererUserData;
ImVec4 clear_color = ImGui::GetStyle().Colors[ImGuiCol_WindowBg]; // FIXME-PLATFORM
clear_color.w = 1.0f;
ImVec4 clear_color = ImVec4(0.0f, 0.0f, 0.0f, 1.0f);
g_pd3dDevice->OMSetRenderTargets(1, &data->RTView, NULL);
g_pd3dDevice->ClearRenderTargetView(data->RTView, (float*)&clear_color);
if (!(viewport->Flags & ImGuiViewportFlags_NoRendererClear))
g_pd3dDevice->ClearRenderTargetView(data->RTView, (float*)&clear_color);
ImGui_ImplDX10_RenderDrawData(&viewport->DrawData);
}

6
examples/imgui_impl_dx11.cpp
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@ -595,10 +595,10 @@ static void ImGui_ImplDX11_ResizeViewport(ImGuiViewport* viewport, ImVec2 size)
static void ImGui_ImplDX11_RenderViewport(ImGuiViewport* viewport)
{
ImGuiPlatformDataDx11* data = (ImGuiPlatformDataDx11*)viewport->RendererUserData;
ImVec4 clear_color = ImGui::GetStyle().Colors[ImGuiCol_WindowBg]; // FIXME-PLATFORM
clear_color.w = 1.0f;
ImVec4 clear_color = ImVec4(0.0f, 0.0f, 0.0f, 1.0f);
g_pd3dDeviceContext->OMSetRenderTargets(1, &data->RTView, NULL);
g_pd3dDeviceContext->ClearRenderTargetView(data->RTView, (float*)&clear_color);
if (!(viewport->Flags & ImGuiViewportFlags_NoRendererClear))
g_pd3dDeviceContext->ClearRenderTargetView(data->RTView, (float*)&clear_color);
ImGui_ImplDX11_RenderDrawData(&viewport->DrawData);
}

6
examples/imgui_impl_dx12.cpp
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@ -734,10 +734,10 @@ static void ImGui_ImplDX12_RenderViewport(ImGuiViewport* viewport)
IM_ASSERT(0);
(void)data;
/*
ImVec4 clear_color = ImGui::GetStyle().Colors[ImGuiCol_WindowBg]; // FIXME-PLATFORM
clear_color.w = 1.0f;
ImVec4 clear_color = ImVec4(0.0f, 0.0f, 0.0f, 1.0f);
g_pd3dDeviceContext->OMSetRenderTargets(1, &data->RTView, NULL);
g_pd3dDeviceContext->ClearRenderTargetView(data->RTView, (float*)&clear_color);
if (!(viewport->Flags & ImGuiViewportFlags_NoRendererClear))
g_pd3dDeviceContext->ClearRenderTargetView(data->RTView, (float*)&clear_color);
*/
ImGui_ImplDX12_RenderDrawData(&viewport->DrawData);
}

9
examples/imgui_impl_opengl3.cpp
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@ -331,9 +331,12 @@ void ImGui_ImplOpenGL3_DestroyDeviceObjects()
static void ImGui_ImplOpenGL3_RenderViewport(ImGuiViewport* viewport)
{
ImVec4 clear_color = ImGui::GetStyle().Colors[ImGuiCol_WindowBg];
glClearColor(clear_color.x, clear_color.y, clear_color.z, 1.0f); // FIXME-PLATFORM
glClear(GL_COLOR_BUFFER_BIT);
if (!(viewport->Flags & ImGuiViewportFlags_NoRendererClear))
{
ImVec4 clear_color = ImVec4(0.0f, 0.0f, 0.0f, 1.0f);
glClearColor(clear_color.x, clear_color.y, clear_color.z, clear_color.w);
glClear(GL_COLOR_BUFFER_BIT);
}
ImGui_ImplOpenGL3_RenderDrawData(&viewport->DrawData);
}

16
examples/imgui_impl_vulkan.cpp
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@ -757,6 +757,7 @@ ImGui_ImplVulkan_WindowData::ImGui_ImplVulkan_WindowData()
memset(&SurfaceFormat, 0, sizeof(SurfaceFormat));
PresentMode = VK_PRESENT_MODE_MAX_ENUM_KHR;
RenderPass = VK_NULL_HANDLE;
ClearEnable = true;
memset(&ClearValue, 0, sizeof(ClearValue));
BackBufferCount = 0;
memset(&BackBuffer, 0, sizeof(BackBuffer));
@ -959,7 +960,7 @@ void ImGui_ImplVulkanH_CreateWindowDataSwapChainAndFramebuffer(VkPhysicalDevice
VkAttachmentDescription attachment = {};
attachment.format = wd->SurfaceFormat.format;
attachment.samples = VK_SAMPLE_COUNT_1_BIT;
attachment.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
attachment.loadOp = wd->ClearEnable ? VK_ATTACHMENT_LOAD_OP_CLEAR : VK_ATTACHMENT_LOAD_OP_DONT_CARE;
attachment.storeOp = VK_ATTACHMENT_STORE_OP_STORE;
attachment.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
attachment.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
@ -1091,6 +1092,7 @@ static void ImGui_ImplVulkan_CreateViewport(ImGuiViewport* viewport)
wd->PresentMode = ImGui_ImplVulkanH_SelectPresentMode(g_PhysicalDevice, wd->Surface, &present_mode, 1);
// 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);
}
@ -1110,6 +1112,7 @@ static void ImGui_ImplVulkan_ResizeViewport(ImGuiViewport* viewport, ImVec2 size
ImGuiPlatformDataVulkan* data = (ImGuiPlatformDataVulkan*)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);
}
@ -1119,9 +1122,6 @@ static void ImGui_ImplVulkan_RenderViewport(ImGuiViewport* viewport)
ImGui_ImplVulkan_WindowData* wd = &data->WindowData;
VkResult err;
ImVec4 clear_color = ImGui::GetStyle().Colors[ImGuiCol_WindowBg]; // FIXME-PLATFORM
clear_color.w = 1.0f;
{
ImGui_ImplVulkan_FrameData* fd = &wd->Frames[wd->FrameIndex];
for (;;)
@ -1145,19 +1145,21 @@ static void ImGui_ImplVulkan_RenderViewport(ImGuiViewport* viewport)
check_vk_result(err);
}
{
ImVec4 clear_color = ImVec4(0.0f, 0.0f, 0.0f, 1.0f);
memcpy(&wd->ClearValue.color.float32[0], &clear_color, 4 * sizeof(float));
VkRenderPassBeginInfo info = {};
info.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
info.renderPass = wd->RenderPass;
info.framebuffer = wd->Framebuffer[fd->BackbufferIndex];
info.renderArea.extent.width = wd->Width;
info.renderArea.extent.height = wd->Height;
info.clearValueCount = 1;
info.pClearValues = &wd->ClearValue;
info.clearValueCount = (viewport->Flags & ImGuiViewportFlags_NoRendererClear) ? 0 : 1;
info.pClearValues = (viewport->Flags & ImGuiViewportFlags_NoRendererClear) ? NULL : &wd->ClearValue;
vkCmdBeginRenderPass(fd->CommandBuffer, &info, VK_SUBPASS_CONTENTS_INLINE);
}
}
memcpy(&wd->ClearValue.color.float32[0], &clear_color, 4 * sizeof(float));
ImGui_ImplVulkan_RenderDrawData(wd->Frames[wd->FrameIndex].CommandBuffer, &viewport->DrawData);
{

1
examples/imgui_impl_vulkan.h
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@ -77,6 +77,7 @@ struct ImGui_ImplVulkan_WindowData
VkSurfaceFormatKHR SurfaceFormat;
VkPresentModeKHR PresentMode;
VkRenderPass RenderPass;
bool ClearEnable;
VkClearValue ClearValue;
uint32_t BackBufferCount;
VkImage BackBuffer[16];