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Backends: Vulkan: use a single call to vkCmdPushConstants(). (#9183, #9327)

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This commit is contained in:
JoshBot-Debug
2026-01-23 22:31:05 +05:30
committed by ocornut
parent 689f837afa
commit b003a85143
1 changed files with 6 additions and 9 deletions
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15
backends/imgui_impl_vulkan.cpp
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@@ -509,14 +509,12 @@ static void ImGui_ImplVulkan_SetupRenderState(ImDrawData* draw_data, VkPipeline
// Setup scale and translation:
// Our visible imgui space lies from draw_data->DisplayPps (top left) to draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayPos is (0,0) for single viewport apps.
{
float scale[2];
scale[0] = 2.0f / draw_data->DisplaySize.x;
scale[1] = 2.0f / draw_data->DisplaySize.y;
float translate[2];
translate[0] = -1.0f - draw_data->DisplayPos.x * scale[0];
translate[1] = -1.0f - draw_data->DisplayPos.y * scale[1];
vkCmdPushConstants(command_buffer, bd->PipelineLayout, VK_SHADER_STAGE_VERTEX_BIT, sizeof(float) * 0, sizeof(float) * 2, scale);
vkCmdPushConstants(command_buffer, bd->PipelineLayout, VK_SHADER_STAGE_VERTEX_BIT, sizeof(float) * 2, sizeof(float) * 2, translate);
float constants[4];
constants[0] = 2.0f / draw_data->DisplaySize.x; // Scale
constants[1] = 2.0f / draw_data->DisplaySize.y;
constants[2] = -1.0f - draw_data->DisplayPos.x * constants[0]; // Translate
constants[3] = -1.0f - draw_data->DisplayPos.y * constants[1];
vkCmdPushConstants(command_buffer, bd->PipelineLayout, VK_SHADER_STAGE_VERTEX_BIT, 0, sizeof(float) * 4, constants);
}
}
@@ -1793,7 +1791,6 @@ void ImGui_ImplVulkanH_CreateOrResizeWindow(VkInstance instance, VkPhysicalDevic
VkCommandPoolCreateInfo pool_info = {};
pool_info.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
pool_info.queueFamilyIndex = queue_family;
pool_info.flags = VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT;
VkResult err = vkCreateCommandPool(device, &pool_info, allocator, &command_pool);
check_vk_result(err);