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(Breaking) Backends: Vulkan: redesigned to use separate ImageView + Sampler instead of Combined Image Sampler. (WIP) (#914)

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This commit is contained in:
yaz0r
2025-09-09 00:21:45 -07:00
committed by ocornut
parent a5fd597be3
commit 0453ae96e8
8 changed files with 223 additions and 41 deletions
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19
examples/example_win32_vulkan/main.cpp
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@@ -182,7 +182,8 @@ static void SetupVulkan(ImVector<const char*> instance_extensions)
{
VkDescriptorPoolSize pool_sizes[] =
{
{ VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_SAMPLER_POOL_SIZE },
{ VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE, IMGUI_IMPL_VULKAN_MINIMUM_IMAGE_POOL_SIZE },
{ VK_DESCRIPTOR_TYPE_SAMPLER, IMGUI_IMPL_VULKAN_MINIMUM_SAMPLER_POOL_SIZE },
};
VkDescriptorPoolCreateInfo pool_info = {};
pool_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
@@ -435,6 +436,12 @@ int main(int, char**)
bool show_another_window = false;
ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f);
//int my_image_width = 0;
//int my_image_height = 0;
//GLuint my_image_texture = 0;
//bool ret = LoadTextureFromFile("../../MyImage01.jpg", &my_image_texture, &my_image_width, &my_image_height);
//IM_ASSERT(ret);
// Main loop
bool done = false;
while (!done)
@@ -457,6 +464,16 @@ int main(int, char**)
ImGui_ImplWin32_NewFrame();
ImGui::NewFrame();
//ImGui::Begin("SDL_GPU Texture Test");
//ImGui::Text("pointer = %p", &my_texture);
//ImGui::Text("size = %d x %d", my_image_width, my_image_height);
//ImGui::Image((ImTextureID)(intptr_t)my_texture, ImVec2((float)my_image_width * 3, (float)my_image_height * 3));
//ImGui::SameLine();
//ImGui::GetWindowDrawList()->AddCallback(ImDrawCallback_SetSamplerNearest, NULL);
//ImGui::Image((ImTextureID)(intptr_t)my_texture, ImVec2((float)my_image_width * 3, (float)my_image_height * 3));
//ImGui::GetWindowDrawList()->AddCallback(ImDrawCallback_SetSamplerLinear, NULL);
//ImGui::End();
// 1. Show the big demo window (Most of the sample code is in ImGui::ShowDemoWindow()! You can browse its code to learn more about Dear ImGui!).
if (show_demo_window)
ImGui::ShowDemoWindow(&show_demo_window);