mirror/imgui
1
0
Fork 0
mirror of https://github.com/ocornut/imgui.git synced 2026-01-09 23:54:20 +00:00
Code Activity

Backends: OSX, Metal: Tweaks. Use preferred method of obtaining a timestamp. (#4821)

Browse source 
+ Rename ImGuiFocusObserver. Docking branch will use it for more than focus.
This commit is contained in:
stuartcarnie 2022-04-27 16:33:14 +03:00 • committed by ocornut
parent 3e5dde9a26
commit d58b8414b9
3 changed files with 22 additions and 38 deletions
Download patch file Download diff file Expand all files Collapse all files

16
backends/imgui_impl_metal.mm
View file

@ -27,17 +27,15 @@
#include "imgui.h"
#include "imgui_impl_metal.h"
#import <time.h>
#import <Metal/Metal.h>
// #import <QuartzCore/CAMetalLayer.h> // Not supported in XCode 9.2. Maybe a macro to detect the SDK version can be used (something like #if MACOS_SDK >= 10.13 ...)
#import <simd/simd.h>
#pragma mark - Support classes
// A wrapper around a MTLBuffer object that knows the last time it was reused
@interface MetalBuffer : NSObject
@property (nonatomic, strong) id<MTLBuffer> buffer;
@property (nonatomic, assign) NSTimeInterval lastReuseTime;
@property (nonatomic, assign) double lastReuseTime;
- (instancetype)initWithBuffer:(id<MTLBuffer>)buffer;
@end
@ -61,7 +59,7 @@
@property (nonatomic, strong) NSMutableDictionary *renderPipelineStateCache; // pipeline cache; keyed on framebuffer descriptors
@property (nonatomic, strong, nullable) id<MTLTexture> fontTexture;
@property (nonatomic, strong) NSMutableArray<MetalBuffer *> *bufferCache;
@property (nonatomic, assign) NSTimeInterval lastBufferCachePurge;
@property (nonatomic, assign) double lastBufferCachePurge;
- (void)makeDeviceObjectsWithDevice:(id<MTLDevice>)device;
- (void)makeFontTextureWithDevice:(id<MTLDevice>)device;
- (MetalBuffer *)dequeueReusableBufferOfLength:(NSUInteger)length device:(id<MTLDevice>)device;
@ -90,6 +88,8 @@ static ImGui_ImplMetal_Data* ImGui_ImplMetal_CreateBackendData() { return I
static ImGui_ImplMetal_Data* ImGui_ImplMetal_GetBackendData() { return ImGui::GetCurrentContext() ? (ImGui_ImplMetal_Data*)ImGui::GetIO().BackendRendererUserData : NULL; }
static void ImGui_ImplMetal_DestroyBackendData() { IM_DELETE(ImGui_ImplMetal_GetBackendData()); }
static inline CFTimeInterval GetMachAbsoluteTimeInSeconds() { return static_cast<CFTimeInterval>(static_cast<double>(clock_gettime_nsec_np(CLOCK_UPTIME_RAW)) / 1e9); }
#ifdef IMGUI_IMPL_METAL_CPP
#pragma mark - Dear ImGui Metal C++ Backend API
@ -207,7 +207,7 @@ void ImGui_ImplMetal_DestroyDeviceObjects()
if ((self = [super init]))
{
_buffer = buffer;
_lastReuseTime = [NSDate date].timeIntervalSince1970;
_lastReuseTime = GetMachAbsoluteTimeInSeconds();
}
return self;
}
@ -269,7 +269,7 @@ void ImGui_ImplMetal_DestroyDeviceObjects()
{
_renderPipelineStateCache = [NSMutableDictionary dictionary];
_bufferCache = [NSMutableArray array];
_lastBufferCachePurge = [NSDate date].timeIntervalSince1970;
_lastBufferCachePurge = GetMachAbsoluteTimeInSeconds();
}
return self;
}
@ -309,7 +309,7 @@ void ImGui_ImplMetal_DestroyDeviceObjects()
- (MetalBuffer *)dequeueReusableBufferOfLength:(NSUInteger)length device:(id<MTLDevice>)device
{
NSTimeInterval now = [NSDate date].timeIntervalSince1970;
uint64_t now = GetMachAbsoluteTimeInSeconds();
// Purge old buffers that haven't been useful for a while
if (now - self.lastBufferCachePurge > 1.0)