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Examples: imgui_impl_vulkan: Comments (re)

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This commit is contained in:
omar 2018-08-22 17:59:58 +02:00
parent 3fdfac3377
commit 7268c65d73
2 changed files with 26 additions and 14 deletions
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17
examples/imgui_impl_vulkan.cpp
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@ -726,14 +726,19 @@ void ImGui_ImplVulkan_NewFrame()
{
}
//-------------------------------------------------------------------------
// Optional / Miscellaneous Vulkan Helpers
// Internal / Miscellaneous Vulkan Helpers
//-------------------------------------------------------------------------
// - Those functions do NOT use any of the state used/affected by the regular ImGui_ImplVulkan_XXX functions.
// - If your application/engine already has code to create all that stuff (swap chain, render pass, frame buffers, etc.) you may ignore those.
// - Those functions are used by the example main.cpp and will be used by imgui_impl_vulkan.cpp in the upcoming multi-viewport branch (1.70).
// Generally we try to not provide any kind of superfluous high-level helpers in the examples, but it is too much code to duplicate
// in the main.cpp of every examples. Since the upcoming multi-viewport will need these, we include them here.
// You probably do NOT need to use or care about those functions.
// Those functions only exist because:
// 1) they facilitate the readability and maintenance of the multiple main.cpp examples files.
// 2) the upcoming multi-viewport feature will need them internally.
// Generally we avoid exposing any kind of superfluous high-level helpers in the bindings,
// but it is too much code to duplicate everywhere so we exceptionally expose them.
// Your application/engine will likely already have code to setup all that stuff (swap chain, render pass, frame buffers, etc.).
// You may read this code to learn about Vulkan, but it is recommended you use you own custom tailored code to do equivalent work.
// (those functions do not interact with any of the state used by the regular ImGui_ImplVulkan_XXX functions)
//-------------------------------------------------------------------------
#include <stdlib.h> // malloc

23
examples/imgui_impl_vulkan.h
View File

@ -36,18 +36,23 @@ IMGUI_IMPL_API void ImGui_ImplVulkan_RenderDrawData(ImDrawData* draw_data, V
IMGUI_IMPL_API bool ImGui_ImplVulkan_CreateFontsTexture(VkCommandBuffer command_buffer);
IMGUI_IMPL_API void ImGui_ImplVulkan_InvalidateFontUploadObjects();
// Called by ImGui_ImplVulkan_Init()
// Called by ImGui_ImplVulkan_Init() might be useful elsewhere.
IMGUI_IMPL_API bool ImGui_ImplVulkan_CreateDeviceObjects();
IMGUI_IMPL_API void ImGui_ImplVulkan_InvalidateDeviceObjects();
//-------------------------------------------------------------------------
// Optional / Miscellaneous Vulkan Helpers
// Internal / Miscellaneous Vulkan Helpers
//-------------------------------------------------------------------------
// - Those functions do NOT use any of the state used/affected by the regular ImGui_ImplVulkan_XXX functions.
// - If your application/engine already has code to create all that stuff (swap chain, render pass, frame buffers, etc.) you may ignore those.
// - Those functions are used by the example main.cpp and will be used by imgui_impl_vulkan.cpp in the upcoming multi-viewport branch (1.70).
// Generally we try to not provide any kind of superfluous high-level helpers in the examples, but it is too much code to duplicate
// in the main.cpp of every examples. Since the upcoming multi-viewport will need these, we include them here.
// You probably do NOT need to use or care about those functions.
// Those functions only exist because:
// 1) they facilitate the readability and maintenance of the multiple main.cpp examples files.
// 2) the upcoming multi-viewport feature will need them internally.
// Generally we avoid exposing any kind of superfluous high-level helpers in the bindings,
// but it is too much code to duplicate everywhere so we exceptionally expose them.
// Your application/engine will likely already have code to setup all that stuff (swap chain, render pass, frame buffers, etc.).
// You may read this code to learn about Vulkan, but it is recommended you use you own custom tailored code to do equivalent work.
// (those functions do not interact with any of the state used by the regular ImGui_ImplVulkan_XXX functions)
//-------------------------------------------------------------------------
struct ImGui_ImplVulkanH_FrameData;
@ -60,9 +65,10 @@ IMGUI_IMPL_API VkSurfaceFormatKHR ImGui_ImplVulkanH_SelectSurfaceFormat(VkPhys
IMGUI_IMPL_API VkPresentModeKHR ImGui_ImplVulkanH_SelectPresentMode(VkPhysicalDevice physical_device, VkSurfaceKHR surface, const VkPresentModeKHR* request_modes, int request_modes_count);
IMGUI_IMPL_API int ImGui_ImplVulkanH_GetMinImageCountFromPresentMode(VkPresentModeKHR present_mode);
// Helper structure to hold the data needed by one rendering frame
struct ImGui_ImplVulkanH_FrameData
{
uint32_t BackbufferIndex; // keep track of recently rendered swapchain frame indices
uint32_t BackbufferIndex; // Keep track of recently rendered swapchain frame indices
VkCommandPool CommandPool;
VkCommandBuffer CommandBuffer;
VkFence Fence;
@ -72,6 +78,7 @@ struct ImGui_ImplVulkanH_FrameData
IMGUI_IMPL_API ImGui_ImplVulkanH_FrameData();
};
// Helper structure to hold the data needed by one rendering context into one OS window
struct ImGui_ImplVulkanH_WindowData
{
int Width;