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Backends: Vulkan: Removed unused shader code. Fix leaks. Avoid unnecessary pipeline creation for main viewport. Amend 41e2aa2. (#3459)

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This commit is contained in:
omar 2020-09-08 22:39:53 +02:00
parent d8d58b038e
commit e8447dea45
2 changed files with 9 additions and 24 deletions
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31
examples/imgui_impl_vulkan.cpp
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@ -676,7 +676,7 @@ static void ImGui_ImplVulkan_CreatePipelineLayout(VkDevice device, const VkAlloc
check_vk_result(err);
}
static void ImGui_ImplVulkan_CreatePipeline(VkDevice device, const VkAllocationCallbacks* allocator, VkPipelineCache pipelineCache, VkRenderPass renderPass, VkSampleCountFlagBits MSAASamples, VkPipeline *pipeline)
static void ImGui_ImplVulkan_CreatePipeline(VkDevice device, const VkAllocationCallbacks* allocator, VkPipelineCache pipelineCache, VkRenderPass renderPass, VkSampleCountFlagBits MSAASamples, VkPipeline* pipeline)
{
ImGui_ImplVulkan_CreateShaderModules(device, allocator);
@ -784,24 +784,6 @@ bool ImGui_ImplVulkan_CreateDeviceObjects()
{
ImGui_ImplVulkan_InitInfo* v = &g_VulkanInitInfo;
VkResult err;
VkShaderModule vert_module;
VkShaderModule frag_module;
// Create The Shader Modules:
{
VkShaderModuleCreateInfo vert_info = {};
vert_info.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO;
vert_info.codeSize = sizeof(__glsl_shader_vert_spv);
vert_info.pCode = (uint32_t*)__glsl_shader_vert_spv;
err = vkCreateShaderModule(v->Device, &vert_info, v->Allocator, &vert_module);
check_vk_result(err);
VkShaderModuleCreateInfo frag_info = {};
frag_info.sType = VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO;
frag_info.codeSize = sizeof(__glsl_shader_frag_spv);
frag_info.pCode = (uint32_t*)__glsl_shader_frag_spv;
err = vkCreateShaderModule(v->Device, &frag_info, v->Allocator, &frag_module);
check_vk_result(err);
}
if (!g_FontSampler)
{
@ -867,9 +849,6 @@ bool ImGui_ImplVulkan_CreateDeviceObjects()
ImGui_ImplVulkan_CreatePipeline(v->Device, v->Allocator, v->PipelineCache, g_RenderPass, v->MSAASamples, &g_Pipeline);
vkDestroyShaderModule(v->Device, vert_module, v->Allocator);
vkDestroyShaderModule(v->Device, frag_module, v->Allocator);
return true;
}
@ -894,6 +873,8 @@ void ImGui_ImplVulkan_DestroyDeviceObjects()
ImGui_ImplVulkanH_DestroyWindowRenderBuffers(v->Device, &g_MainWindowRenderBuffers, v->Allocator);
ImGui_ImplVulkan_DestroyFontUploadObjects();
if (g_ShaderModuleVert) { vkDestroyShaderModule(v->Device, g_ShaderModuleVert, v->Allocator); g_ShaderModuleVert = VK_NULL_HANDLE; }
if (g_ShaderModuleFrag) { vkDestroyShaderModule(v->Device, g_ShaderModuleFrag, v->Allocator); g_ShaderModuleFrag = VK_NULL_HANDLE; }
if (g_FontView) { vkDestroyImageView(v->Device, g_FontView, v->Allocator); g_FontView = VK_NULL_HANDLE; }
if (g_FontImage) { vkDestroyImage(v->Device, g_FontImage, v->Allocator); g_FontImage = VK_NULL_HANDLE; }
if (g_FontMemory) { vkFreeMemory(v->Device, g_FontMemory, v->Allocator); g_FontMemory = VK_NULL_HANDLE; }
@ -1210,7 +1191,10 @@ void ImGui_ImplVulkanH_CreateWindowSwapChain(VkPhysicalDevice physical_device, V
info.pDependencies = &dependency;
err = vkCreateRenderPass(device, &info, allocator, &wd->RenderPass);
check_vk_result(err);
ImGui_ImplVulkan_CreatePipeline(device, allocator, VK_NULL_HANDLE, wd->RenderPass, VK_SAMPLE_COUNT_1_BIT, &wd->Pipeline);
// We do not create a pipeline by default as this is also used by examples' main.cpp,
// but secondary viewport in multi-viewport mode may want to create one with:
//ImGui_ImplVulkan_CreatePipeline(device, allocator, VK_NULL_HANDLE, wd->RenderPass, VK_SAMPLE_COUNT_1_BIT, &wd->Pipeline);
}
// Create The Image Views
@ -1277,6 +1261,7 @@ void ImGui_ImplVulkanH_DestroyWindow(VkInstance instance, VkDevice device, ImGui
IM_FREE(wd->FrameSemaphores);
wd->Frames = NULL;
wd->FrameSemaphores = NULL;
vkDestroyPipeline(device, wd->Pipeline, allocator);
vkDestroyRenderPass(device, wd->RenderPass, allocator);
vkDestroySwapchainKHR(device, wd->Swapchain, allocator);
vkDestroySurfaceKHR(instance, wd->Surface, allocator);

2
examples/imgui_impl_vulkan.h
View File

@ -108,7 +108,7 @@ struct ImGui_ImplVulkanH_Window
VkSurfaceFormatKHR SurfaceFormat;
VkPresentModeKHR PresentMode;
VkRenderPass RenderPass;
VkPipeline Pipeline; // The window pipeline uses a different VkRenderPass than the user's
VkPipeline Pipeline; // The window pipeline may uses a different VkRenderPass than the one passed in ImGui_ImplVulkan_InitInfo
bool ClearEnable;
VkClearValue ClearValue;
uint32_t FrameIndex; // Current frame being rendered to (0 <= FrameIndex < FrameInFlightCount)