143 lines
3.4 KiB
Plaintext
143 lines
3.4 KiB
Plaintext
// Copyright 2012 Dolphin Emulator Project
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// Licensed under GPLv2+
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// Refer to the license.txt file included.
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#include "Common/GL/GLInterface/AGL.h"
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#include "Common/Logging/Log.h"
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static bool UpdateCachedDimensions(NSView* view, u32* width, u32* height)
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{
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NSWindow* window = [view window];
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NSSize size = [view frame].size;
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float scale = [window backingScaleFactor];
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size.width *= scale;
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size.height *= scale;
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if (*width == size.width && *height == size.height)
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return false;
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*width = size.width;
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*height = size.height;
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return true;
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}
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static bool AttachContextToView(NSOpenGLContext* context, NSView* view, u32* width, u32* height)
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{
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// Enable high-resolution display support.
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[view setWantsBestResolutionOpenGLSurface:YES];
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NSWindow* window = [view window];
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if (window == nil)
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{
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ERROR_LOG(VIDEO, "failed to get NSWindow");
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return false;
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}
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(void)UpdateCachedDimensions(view, width, height);
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[window makeFirstResponder:view];
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[context setView:view];
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[window makeKeyAndOrderFront:nil];
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return true;
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}
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void cInterfaceAGL::Swap()
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{
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[m_context flushBuffer];
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}
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// Create rendering window.
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// Call browser: Core.cpp:EmuThread() > main.cpp:Video_Initialize()
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bool cInterfaceAGL::Create(void* window_handle, bool stereo, bool core)
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{
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NSOpenGLPixelFormatAttribute attr[] = {
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NSOpenGLPFADoubleBuffer,
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NSOpenGLPFAOpenGLProfile,
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core ? NSOpenGLProfileVersion3_2Core : NSOpenGLProfileVersionLegacy,
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NSOpenGLPFAAccelerated,
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stereo ? NSOpenGLPFAStereo : static_cast<NSOpenGLPixelFormatAttribute>(0),
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0};
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m_pixel_format = [[NSOpenGLPixelFormat alloc] initWithAttributes:attr];
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if (m_pixel_format == nil)
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{
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ERROR_LOG(VIDEO, "failed to create pixel format");
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return false;
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}
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m_context = [[NSOpenGLContext alloc] initWithFormat:m_pixel_format shareContext:nil];
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if (m_context == nil)
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{
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ERROR_LOG(VIDEO, "failed to create context");
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return false;
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}
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if (!window_handle)
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return true;
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m_view = static_cast<NSView*>(window_handle);
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return AttachContextToView(m_context, m_view, &s_backbuffer_width, &s_backbuffer_height);
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}
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bool cInterfaceAGL::Create(cInterfaceBase* main_context)
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{
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cInterfaceAGL* agl_context = static_cast<cInterfaceAGL*>(main_context);
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NSOpenGLPixelFormat* pixel_format = agl_context->m_pixel_format;
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NSOpenGLContext* share_context = agl_context->m_context;
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m_context = [[NSOpenGLContext alloc] initWithFormat:pixel_format shareContext:share_context];
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if (m_context == nil)
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{
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ERROR_LOG(VIDEO, "failed to create shared context");
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return false;
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}
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return true;
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}
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std::unique_ptr<cInterfaceBase> cInterfaceAGL::CreateSharedContext()
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{
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std::unique_ptr<cInterfaceBase> context = std::make_unique<cInterfaceAGL>();
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if (!context->Create(this))
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return nullptr;
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return context;
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}
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bool cInterfaceAGL::MakeCurrent()
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{
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[m_context makeCurrentContext];
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return true;
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}
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bool cInterfaceAGL::ClearCurrent()
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{
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[NSOpenGLContext clearCurrentContext];
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return true;
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}
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// Close backend
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void cInterfaceAGL::Shutdown()
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{
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[m_context clearDrawable];
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[m_context release];
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m_context = nil;
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[m_pixel_format release];
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m_pixel_format = nil;
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}
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void cInterfaceAGL::Update()
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{
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if (!m_view)
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return;
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if (UpdateCachedDimensions(m_view, &s_backbuffer_width, &s_backbuffer_height))
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[m_context update];
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}
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void cInterfaceAGL::SwapInterval(int interval)
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{
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[m_context setValues:static_cast<GLint*>(&interval) forParameter:NSOpenGLCPSwapInterval];
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}
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