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Examples: Using draw_data->DisplaySize, followup to c50198debe. Fix Vulkan secondary viewport rendering. SDL+Vulkan: Matched changes. Fix vcprojs. (#1542, #1042)

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This commit is contained in:
omar 2018-03-13 21:45:09 +01:00
parent 921bb92eec
commit 98b66a5fc9
7 changed files with 39 additions and 61 deletions
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12
examples/imgui_impl_dx9.cpp
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@ -42,8 +42,7 @@ struct CUSTOMVERTEX
void ImGui_ImplDX9_RenderDrawData(ImDrawData* draw_data) void ImGui_ImplDX9_RenderDrawData(ImDrawData* draw_data)
{ {
// Avoid rendering when minimized // Avoid rendering when minimized
ImGuiIO& io = ImGui::GetIO(); if (draw_data->DisplaySize.x <= 0.0f || draw_data->DisplaySize.y <= 0.0f)
if (io.DisplaySize.x <= 0.0f || io.DisplaySize.y <= 0.0f)
return; return;
// Create and grow buffers if needed // Create and grow buffers if needed
@ -101,8 +100,8 @@ void ImGui_ImplDX9_RenderDrawData(ImDrawData* draw_data)
// Setup viewport // Setup viewport
D3DVIEWPORT9 vp; D3DVIEWPORT9 vp;
vp.X = vp.Y = 0; vp.X = vp.Y = 0;
vp.Width = (DWORD)io.DisplaySize.x; vp.Width = (DWORD)draw_data->DisplaySize.x;
vp.Height = (DWORD)io.DisplaySize.y; vp.Height = (DWORD)draw_data->DisplaySize.y;
vp.MinZ = 0.0f; vp.MinZ = 0.0f;
vp.MaxZ = 1.0f; vp.MaxZ = 1.0f;
g_pd3dDevice->SetViewport(&vp); g_pd3dDevice->SetViewport(&vp);
@ -131,7 +130,10 @@ void ImGui_ImplDX9_RenderDrawData(ImDrawData* draw_data)
// Setup orthographic projection matrix // Setup orthographic projection matrix
// Being agnostic of whether <d3dx9.h> or <DirectXMath.h> can be used, we aren't relying on D3DXMatrixIdentity()/D3DXMatrixOrthoOffCenterLH() or DirectX::XMMatrixIdentity()/DirectX::XMMatrixOrthographicOffCenterLH() // Being agnostic of whether <d3dx9.h> or <DirectXMath.h> can be used, we aren't relying on D3DXMatrixIdentity()/D3DXMatrixOrthoOffCenterLH() or DirectX::XMMatrixIdentity()/DirectX::XMMatrixOrthographicOffCenterLH()
{ {
const float L = 0.5f, R = io.DisplaySize.x+0.5f, T = 0.5f, B = io.DisplaySize.y+0.5f; float L = draw_data->DisplayPos.x + 0.5f;
float R = draw_data->DisplayPos.x + draw_data->DisplaySize.x + 0.5f;
float T = draw_data->DisplayPos.y + 0.5f;
float B = draw_data->DisplayPos.y + draw_data->DisplaySize.y + 0.5f;
D3DMATRIX mat_identity = { { 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f } }; D3DMATRIX mat_identity = { { 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, 1.0f } };
D3DMATRIX mat_projection = D3DMATRIX mat_projection =
{ {

4
examples/imgui_impl_opengl2.cpp
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@ -60,8 +60,8 @@ void ImGui_ImplOpenGL2_RenderDrawData(ImDrawData* draw_data)
{ {
// Avoid rendering when minimized, scale coordinates for retina displays (screen coordinates != framebuffer coordinates) // Avoid rendering when minimized, scale coordinates for retina displays (screen coordinates != framebuffer coordinates)
ImGuiIO& io = ImGui::GetIO(); ImGuiIO& io = ImGui::GetIO();
int fb_width = (int)(io.DisplaySize.x * io.DisplayFramebufferScale.x); int fb_width = (int)(draw_data->DisplaySize.x * io.DisplayFramebufferScale.x);
int fb_height = (int)(io.DisplaySize.y * io.DisplayFramebufferScale.y); int fb_height = (int)(draw_data->DisplaySize.y * io.DisplayFramebufferScale.y);
if (fb_width == 0 || fb_height == 0) if (fb_width == 0 || fb_height == 0)
return; return;
draw_data->ScaleClipRects(io.DisplayFramebufferScale); draw_data->ScaleClipRects(io.DisplayFramebufferScale);

4
examples/imgui_impl_vulkan.cpp
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@ -263,8 +263,8 @@ void ImGui_ImplVulkan_RenderDrawData(VkCommandBuffer command_buffer, ImDrawData*
VkViewport viewport; VkViewport viewport;
viewport.x = 0; viewport.x = 0;
viewport.y = 0; viewport.y = 0;
viewport.width = io.DisplaySize.x; viewport.width = draw_data->DisplaySize.x;
viewport.height = io.DisplaySize.y; viewport.height = draw_data->DisplaySize.y;
viewport.minDepth = 0.0f; viewport.minDepth = 0.0f;
viewport.maxDepth = 1.0f; viewport.maxDepth = 1.0f;
vkCmdSetViewport(command_buffer, 0, 1, &viewport); vkCmdSetViewport(command_buffer, 0, 1, &viewport);

2
examples/sdl_opengl2_example/main.cpp
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@ -121,7 +121,7 @@ int main(int, char**)
} }
// Rendering // Rendering
glViewport(0, 0, (int)ImGui::GetIO().DisplaySize.x, (int)ImGui::GetIO().DisplaySize.y); glViewport(0, 0, (int)io.DisplaySize.x, (int)io.DisplaySize.y);
glClearColor(clear_color.x, clear_color.y, clear_color.z, clear_color.w); glClearColor(clear_color.x, clear_color.y, clear_color.z, clear_color.w);
glClear(GL_COLOR_BUFFER_BIT); glClear(GL_COLOR_BUFFER_BIT);
//glUseProgram(0); // You may want this if using this code in an OpenGL 3+ context where shaders may be bound //glUseProgram(0); // You may want this if using this code in an OpenGL 3+ context where shaders may be bound

74
examples/sdl_vulkan_example/main.cpp
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@ -9,7 +9,6 @@
#include <SDL_vulkan.h> #include <SDL_vulkan.h>
#include <vulkan/vulkan.h> #include <vulkan/vulkan.h>
// FIXME-VULKAN: Resizing with IMGUI_UNLIMITED_FRAME_RATE triggers errors from the validation layer.
#define IMGUI_UNLIMITED_FRAME_RATE #define IMGUI_UNLIMITED_FRAME_RATE
#ifdef _DEBUG #ifdef _DEBUG
#define IMGUI_VULKAN_DEBUG_REPORT #define IMGUI_VULKAN_DEBUG_REPORT
@ -220,19 +219,20 @@ static void CleanupVulkan()
vkDestroyInstance(g_Instance, g_Allocator); vkDestroyInstance(g_Instance, g_Allocator);
} }
static void FrameBegin(ImGui_ImplVulkan_WindowData* wd) static void FrameRender(ImGui_ImplVulkan_WindowData* wd)
{ {
ImGui_ImplVulkan_FrameData* fd = &wd->Frames[wd->FrameIndex];
VkResult err; VkResult err;
for (;;)
{ VkSemaphore& image_acquired_semaphore = wd->Frames[wd->FrameIndex].ImageAcquiredSemaphore;
err = vkWaitForFences(g_Device, 1, &fd->Fence, VK_TRUE, 100); err = vkAcquireNextImageKHR(g_Device, wd->Swapchain, UINT64_MAX, image_acquired_semaphore, VK_NULL_HANDLE, &wd->FrameIndex);
if (err == VK_SUCCESS) break;
if (err == VK_TIMEOUT) continue;
check_vk_result(err); check_vk_result(err);
}
ImGui_ImplVulkan_FrameData* fd = &wd->Frames[wd->FrameIndex];
{ {
err = vkAcquireNextImageKHR(g_Device, wd->Swapchain, UINT64_MAX, fd->PresentCompleteSemaphore, VK_NULL_HANDLE, &fd->BackbufferIndex); err = vkWaitForFences(g_Device, 1, &fd->Fence, VK_TRUE, UINT64_MAX); // wait indefinitely instead of periodically checking
check_vk_result(err);
err = vkResetFences(g_Device, 1, &fd->Fence);
check_vk_result(err); check_vk_result(err);
} }
{ {
@ -248,26 +248,25 @@ static void FrameBegin(ImGui_ImplVulkan_WindowData* wd)
VkRenderPassBeginInfo info = {}; VkRenderPassBeginInfo info = {};
info.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO; info.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO;
info.renderPass = wd->RenderPass; info.renderPass = wd->RenderPass;
info.framebuffer = wd->Framebuffer[fd->BackbufferIndex]; info.framebuffer = wd->Framebuffer[wd->FrameIndex];
info.renderArea.extent.width = wd->Width; info.renderArea.extent.width = wd->Width;
info.renderArea.extent.height = wd->Height; info.renderArea.extent.height = wd->Height;
info.clearValueCount = 1; info.clearValueCount = 1;
info.pClearValues = &wd->ClearValue; info.pClearValues = &wd->ClearValue;
vkCmdBeginRenderPass(fd->CommandBuffer, &info, VK_SUBPASS_CONTENTS_INLINE); vkCmdBeginRenderPass(fd->CommandBuffer, &info, VK_SUBPASS_CONTENTS_INLINE);
} }
}
static void FrameEnd(ImGui_ImplVulkan_WindowData* wd) // Record Imgui Draw Data and draw funcs into command buffer
{ ImGui_ImplVulkan_RenderDrawData(fd->CommandBuffer, ImGui::GetDrawData());
ImGui_ImplVulkan_FrameData* fd = &wd->Frames[wd->FrameIndex];
VkResult err; // Submit command buffer
vkCmdEndRenderPass(fd->CommandBuffer); vkCmdEndRenderPass(fd->CommandBuffer);
{ {
VkPipelineStageFlags wait_stage = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT; VkPipelineStageFlags wait_stage = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT;
VkSubmitInfo info = {}; VkSubmitInfo info = {};
info.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO; info.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
info.waitSemaphoreCount = 1; info.waitSemaphoreCount = 1;
info.pWaitSemaphores = &fd->PresentCompleteSemaphore; info.pWaitSemaphores = &image_acquired_semaphore;
info.pWaitDstStageMask = &wait_stage; info.pWaitDstStageMask = &wait_stage;
info.commandBufferCount = 1; info.commandBufferCount = 1;
info.pCommandBuffers = &fd->CommandBuffer; info.pCommandBuffers = &fd->CommandBuffer;
@ -276,8 +275,6 @@ static void FrameEnd(ImGui_ImplVulkan_WindowData* wd)
err = vkEndCommandBuffer(fd->CommandBuffer); err = vkEndCommandBuffer(fd->CommandBuffer);
check_vk_result(err); check_vk_result(err);
err = vkResetFences(g_Device, 1, &fd->Fence);
check_vk_result(err);
err = vkQueueSubmit(g_Queue, 1, &info, fd->Fence); err = vkQueueSubmit(g_Queue, 1, &info, fd->Fence);
check_vk_result(err); check_vk_result(err);
} }
@ -285,23 +282,15 @@ static void FrameEnd(ImGui_ImplVulkan_WindowData* wd)
static void FramePresent(ImGui_ImplVulkan_WindowData* wd) static void FramePresent(ImGui_ImplVulkan_WindowData* wd)
{ {
VkResult err; ImGui_ImplVulkan_FrameData* fd = &wd->Frames[wd->FrameIndex];
// If IMGUI_UNLIMITED_FRAME_RATE is defined we present the latest but one frame. Otherwise we present the latest rendered frame
#ifdef IMGUI_UNLIMITED_FRAME_RATE
uint32_t PresentIndex = (wd->FrameIndex + IMGUI_VK_QUEUED_FRAMES - 1) % IMGUI_VK_QUEUED_FRAMES;
#else
uint32_t PresentIndex = wd->FrameIndex;
#endif // IMGUI_UNLIMITED_FRAME_RATE
ImGui_ImplVulkan_FrameData* fd = &wd->Frames[PresentIndex];
VkPresentInfoKHR info = {}; VkPresentInfoKHR info = {};
info.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR; info.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR;
info.waitSemaphoreCount = 1; info.waitSemaphoreCount = 1;
info.pWaitSemaphores = &fd->RenderCompleteSemaphore; info.pWaitSemaphores = &fd->RenderCompleteSemaphore;
info.swapchainCount = 1; info.swapchainCount = 1;
info.pSwapchains = &wd->Swapchain; info.pSwapchains = &wd->Swapchain;
info.pImageIndices = &fd->BackbufferIndex; info.pImageIndices = &wd->FrameIndex;
err = vkQueuePresentKHR(g_Queue, &info); VkResult err = vkQueuePresentKHR(g_Queue, &info);
check_vk_result(err); check_vk_result(err);
} }
@ -329,6 +318,7 @@ int main(int, char**)
// Create Window Surface // Create Window Surface
VkSurfaceKHR surface; VkSurfaceKHR surface;
VkResult err;
if (SDL_Vulkan_CreateSurface(window, g_Instance, &surface) == 0) if (SDL_Vulkan_CreateSurface(window, g_Instance, &surface) == 0)
{ {
printf("Failed to create Vulkan surface.\n"); printf("Failed to create Vulkan surface.\n");
@ -348,6 +338,9 @@ int main(int, char**)
io.ConfigFlags |= ImGuiConfigFlags_PlatformNoTaskBar; io.ConfigFlags |= ImGuiConfigFlags_PlatformNoTaskBar;
//io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard; // Enable Keyboard Controls //io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard; // Enable Keyboard Controls
// Setup SDL binding
ImGui_ImplSDL2_Init(window, NULL);
// Setup Vulkan binding // Setup Vulkan binding
ImGui_ImplVulkan_InitInfo init_info = {}; ImGui_ImplVulkan_InitInfo init_info = {};
init_info.Instance = g_Instance; init_info.Instance = g_Instance;
@ -359,7 +352,6 @@ int main(int, char**)
init_info.DescriptorPool = g_DescriptorPool; init_info.DescriptorPool = g_DescriptorPool;
init_info.Allocator = g_Allocator; init_info.Allocator = g_Allocator;
init_info.CheckVkResultFn = check_vk_result; init_info.CheckVkResultFn = check_vk_result;
ImGui_ImplSDL2_Init(window, NULL);
ImGui_ImplVulkan_Init(&init_info, wd->RenderPass); ImGui_ImplVulkan_Init(&init_info, wd->RenderPass);
// Setup style // Setup style
@ -387,7 +379,6 @@ int main(int, char**)
VkCommandPool command_pool = wd->Frames[wd->FrameIndex].CommandPool; VkCommandPool command_pool = wd->Frames[wd->FrameIndex].CommandPool;
VkCommandBuffer command_buffer = wd->Frames[wd->FrameIndex].CommandBuffer; VkCommandBuffer command_buffer = wd->Frames[wd->FrameIndex].CommandBuffer;
VkResult err;
err = vkResetCommandPool(g_Device, command_pool, 0); err = vkResetCommandPool(g_Device, command_pool, 0);
check_vk_result(err); check_vk_result(err);
VkCommandBufferBeginInfo begin_info = {}; VkCommandBufferBeginInfo begin_info = {};
@ -416,8 +407,6 @@ int main(int, char**)
bool show_another_window = false; bool show_another_window = false;
ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f); ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f);
bool swap_chain_has_at_least_one_image = false;
// Main loop // Main loop
bool done = false; bool done = false;
while (!done) while (!done)
@ -478,26 +467,13 @@ int main(int, char**)
// Rendering // Rendering
ImGui::Render(); ImGui::Render();
memcpy(&wd->ClearValue.color.float32[0], &clear_color, 4 * sizeof(float)); memcpy(&wd->ClearValue.color.float32[0], &clear_color, 4 * sizeof(float));
FrameBegin(wd); FrameRender(wd);
ImGui_ImplVulkan_RenderDrawData(wd->Frames[wd->FrameIndex].CommandBuffer, ImGui::GetDrawData());
FrameEnd(wd);
ImGui::RenderAdditionalViewports(); ImGui::RenderAdditionalViewports();
#ifdef IMGUI_UNLIMITED_FRAME_RATE
// When IMGUI_UNLIMITED_FRAME_RATE is defined we render into latest image acquired from the swapchain but we display the image which was rendered before.
// Hence we must render once and increase the FrameIndex without presenting.
if (swap_chain_has_at_least_one_image)
FramePresent(wd); FramePresent(wd);
#else
FramePresent(wd);
#endif
swap_chain_has_at_least_one_image = true;
wd->FrameIndex = (wd->FrameIndex + 1) % IMGUI_VK_QUEUED_FRAMES;
} }
// Cleanup // Cleanup
VkResult err = vkDeviceWaitIdle(g_Device); err = vkDeviceWaitIdle(g_Device);
check_vk_result(err); check_vk_result(err);
ImGui_ImplVulkan_Shutdown(); ImGui_ImplVulkan_Shutdown();
ImGui_ImplSDL2_Shutdown(); ImGui_ImplSDL2_Shutdown();

2
examples/sdl_vulkan_example/sdl_vulkan_example.vcxproj
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@ -20,7 +20,7 @@
</ItemGroup> </ItemGroup>
<PropertyGroup Label="Globals"> <PropertyGroup Label="Globals">
<ProjectGuid>{BAE3D0B5-9695-4EB1-AD0F-75890EB4A3B3}</ProjectGuid> <ProjectGuid>{BAE3D0B5-9695-4EB1-AD0F-75890EB4A3B3}</ProjectGuid>
<RootNamespace>opengl3_example</RootNamespace> <RootNamespace>sdl_vulkan_example</RootNamespace>
</PropertyGroup> </PropertyGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" /> <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration"> <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">

2
examples/vulkan_example/vulkan_example.vcxproj
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@ -20,7 +20,7 @@
</ItemGroup> </ItemGroup>
<PropertyGroup Label="Globals"> <PropertyGroup Label="Globals">
<ProjectGuid>{57E2DF5A-6FC8-45BB-99DD-91A18C646E80}</ProjectGuid> <ProjectGuid>{57E2DF5A-6FC8-45BB-99DD-91A18C646E80}</ProjectGuid>
<RootNamespace>opengl3_example</RootNamespace> <RootNamespace>vulkan_example</RootNamespace>
</PropertyGroup> </PropertyGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" /> <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration"> <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">