raze-gles/source/common/platform/posix/cocoa/i_video.mm
2020-09-27 16:12:50 +02:00

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25 KiB
Text

/*
** i_video.mm
**
**---------------------------------------------------------------------------
** Copyright 2012-2018 Alexey Lysiuk
** All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
**
** 1. Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** 2. Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in the
** documentation and/or other materials provided with the distribution.
** 3. The name of the author may not be used to endorse or promote products
** derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**---------------------------------------------------------------------------
**
*/
#include "gl_load.h"
#ifdef HAVE_VULKAN
#define VK_USE_PLATFORM_MACOS_MVK
#define VK_USE_PLATFORM_METAL_EXT
#include "volk/volk.h"
#endif
#include "i_common.h"
#include "v_video.h"
#include "bitmap.h"
#include "c_dispatch.h"
#include "hardware.h"
#include "i_system.h"
#include "m_argv.h"
#include "m_png.h"
#include "st_console.h"
#include "v_text.h"
#include "version.h"
#include "printf.h"
#include "gl_framebuffer.h"
#ifdef HAVE_VULKAN
#include "vulkan/system/vk_framebuffer.h"
#endif
#ifdef HAVE_SOFTPOLY
#include "poly_framebuffer.h"
#endif
extern bool ToggleFullscreen;
@implementation NSWindow(ExitAppOnClose)
- (void)exitAppOnClose
{
NSButton* closeButton = [self standardWindowButton:NSWindowCloseButton];
[closeButton setAction:@selector(sendExitEvent:)];
[closeButton setTarget:[NSApp delegate]];
}
@end
@interface NSWindow(EnterFullscreenOnZoom)
- (void)enterFullscreenOnZoom;
@end
@implementation NSWindow(EnterFullscreenOnZoom)
- (void)enterFullscreen:(id)sender
{
ToggleFullscreen = true;
}
- (void)enterFullscreenOnZoom
{
NSButton* zoomButton = [self standardWindowButton:NSWindowZoomButton];
[zoomButton setEnabled:YES];
[zoomButton setAction:@selector(enterFullscreen:)];
[zoomButton setTarget:self];
}
@end
EXTERN_CVAR(Bool, vid_hidpi)
EXTERN_CVAR(Int, vid_defwidth)
EXTERN_CVAR(Int, vid_defheight)
EXTERN_CVAR(Int, vid_preferbackend)
EXTERN_CVAR(Bool, vk_debug)
CVAR(Bool, mvk_debug, false, 0)
CVAR(Bool, vid_nativefullscreen, false, CVAR_ARCHIVE | CVAR_GLOBALCONFIG)
CUSTOM_CVAR(Bool, vid_autoswitch, true, CVAR_ARCHIVE | CVAR_GLOBALCONFIG | CVAR_NOINITCALL)
{
Printf("You must restart " GAMENAME " to apply graphics switching mode\n");
}
// ---------------------------------------------------------------------------
namespace
{
const NSInteger LEVEL_FULLSCREEN = NSMainMenuWindowLevel + 1;
const NSInteger LEVEL_WINDOWED = NSNormalWindowLevel;
const NSUInteger STYLE_MASK_FULLSCREEN = NSBorderlessWindowMask;
const NSUInteger STYLE_MASK_WINDOWED = NSTitledWindowMask | NSClosableWindowMask | NSMiniaturizableWindowMask | NSResizableWindowMask;
}
// ---------------------------------------------------------------------------
@interface CocoaWindow : NSWindow
{
NSString* m_title;
}
- (BOOL)canBecomeKeyWindow;
- (void)setTitle:(NSString*)title;
- (void)updateTitle;
@end
@implementation CocoaWindow
- (BOOL)canBecomeKeyWindow
{
return true;
}
- (void)setTitle:(NSString*)title
{
m_title = title;
[self updateTitle];
}
- (void)updateTitle
{
if (nil == m_title)
{
m_title = [NSString stringWithFormat:@"%s %s", GAMENAME, GetVersionString()];
}
[super setTitle:m_title];
}
- (void)frameDidChange:(NSNotification*)notification
{
const NSRect frame = [self frame];
win_x = frame.origin.x;
win_y = frame.origin.y;
win_w = frame.size.width;
win_h = frame.size.height;
}
@end
// ---------------------------------------------------------------------------
@interface OpenGLCocoaView : NSOpenGLView
{
NSCursor* m_cursor;
}
- (void)setCursor:(NSCursor*)cursor;
@end
@implementation OpenGLCocoaView
- (void)drawRect:(NSRect)dirtyRect
{
if ([NSGraphicsContext currentContext])
{
[NSColor.blackColor setFill];
NSRectFill(dirtyRect);
}
else if (self.layer != nil)
{
self.layer.backgroundColor = CGColorGetConstantColor(kCGColorBlack);
}
}
- (void)resetCursorRects
{
[super resetCursorRects];
NSCursor* const cursor = nil == m_cursor
? [NSCursor arrowCursor]
: m_cursor;
[self addCursorRect:[self bounds]
cursor:cursor];
}
- (void)setCursor:(NSCursor*)cursor
{
m_cursor = cursor;
}
@end
// ---------------------------------------------------------------------------
@interface VulkanCocoaView : NSView
{
NSCursor* m_cursor;
}
- (void)setCursor:(NSCursor*)cursor;
@end
@implementation VulkanCocoaView
- (void)resetCursorRects
{
[super resetCursorRects];
NSCursor* const cursor = nil == m_cursor
? [NSCursor arrowCursor]
: m_cursor;
[self addCursorRect:[self bounds]
cursor:cursor];
}
- (void)setCursor:(NSCursor*)cursor
{
m_cursor = cursor;
}
+(Class) layerClass
{
return NSClassFromString(@"CAMetalLayer");
}
-(CALayer*) makeBackingLayer
{
return [self.class.layerClass layer];
}
-(BOOL) isOpaque
{
return YES;
}
@end
// ---------------------------------------------------------------------------
extern id appCtrl;
namespace
{
CocoaWindow* CreateWindow(const NSUInteger styleMask)
{
CocoaWindow* const window = [CocoaWindow alloc];
[window initWithContentRect:NSMakeRect(0, 0, vid_defwidth, vid_defheight)
styleMask:styleMask
backing:NSBackingStoreBuffered
defer:NO];
[window setOpaque:YES];
[window makeFirstResponder:appCtrl];
[window setAcceptsMouseMovedEvents:YES];
[window exitAppOnClose];
NSNotificationCenter* nc = [NSNotificationCenter defaultCenter];
[nc addObserver:window
selector:@selector(frameDidChange:)
name:NSWindowDidEndLiveResizeNotification
object:nil];
[nc addObserver:window
selector:@selector(frameDidChange:)
name:NSWindowDidMoveNotification
object:nil];
return window;
}
enum class OpenGLProfile
{
Core,
Legacy
};
NSOpenGLPixelFormat* CreatePixelFormat(const OpenGLProfile profile)
{
NSOpenGLPixelFormatAttribute attributes[16];
size_t i = 0;
attributes[i++] = NSOpenGLPFADoubleBuffer;
attributes[i++] = NSOpenGLPFAColorSize;
attributes[i++] = NSOpenGLPixelFormatAttribute(32);
attributes[i++] = NSOpenGLPFADepthSize;
attributes[i++] = NSOpenGLPixelFormatAttribute(24);
attributes[i++] = NSOpenGLPFAStencilSize;
attributes[i++] = NSOpenGLPixelFormatAttribute(8);
if (profile == OpenGLProfile::Core)
{
attributes[i++] = NSOpenGLPFAOpenGLProfile;
attributes[i++] = NSOpenGLProfileVersion3_2Core;
}
if (!vid_autoswitch)
{
attributes[i++] = NSOpenGLPFAAllowOfflineRenderers;
}
attributes[i] = NSOpenGLPixelFormatAttribute(0);
assert(i < sizeof attributes / sizeof attributes[0]);
return [[NSOpenGLPixelFormat alloc] initWithAttributes:attributes];
}
void SetupOpenGLView(CocoaWindow* const window, const OpenGLProfile profile)
{
NSOpenGLPixelFormat* pixelFormat = CreatePixelFormat(profile);
if (nil == pixelFormat)
{
I_FatalError("Cannot create OpenGL pixel format, graphics hardware is not supported");
}
// Create OpenGL context and view
const NSRect contentRect = [window contentRectForFrameRect:[window frame]];
OpenGLCocoaView* glView = [[OpenGLCocoaView alloc] initWithFrame:contentRect
pixelFormat:pixelFormat];
[[glView openGLContext] makeCurrentContext];
[window setContentView:glView];
}
} // unnamed namespace
// ---------------------------------------------------------------------------
class CocoaVideo : public IVideo
{
public:
CocoaVideo()
{
ms_isVulkanEnabled = vid_preferbackend == 1 && NSAppKitVersionNumber >= 1404; // NSAppKitVersionNumber10_11
}
~CocoaVideo()
{
#ifdef HAVE_VULKAN
delete m_vulkanDevice;
#endif
ms_window = nil;
}
virtual DFrameBuffer* CreateFrameBuffer() override
{
assert(ms_window == nil);
ms_window = CreateWindow(STYLE_MASK_WINDOWED);
const NSRect contentRect = [ms_window contentRectForFrameRect:[ms_window frame]];
SystemBaseFrameBuffer *fb = nullptr;
#ifdef HAVE_VULKAN
if (ms_isVulkanEnabled)
{
NSView* vulkanView = [[VulkanCocoaView alloc] initWithFrame:contentRect];
vulkanView.wantsLayer = YES;
vulkanView.layer.backgroundColor = NSColor.blackColor.CGColor;
[ms_window setContentView:vulkanView];
// See vk_mvk_moltenvk.h for comprehensive explanation of configuration options set below
// https://github.com/KhronosGroup/MoltenVK/blob/master/MoltenVK/MoltenVK/API/vk_mvk_moltenvk.h
if (vk_debug)
{
// Output errors and informational messages
setenv("MVK_CONFIG_LOG_LEVEL", "2", 0);
if (mvk_debug)
{
// Extensive MoltenVK logging, too spammy even for vk_debug CVAR
setenv("MVK_DEBUG", "1", 0);
}
}
else
{
// Limit MoltenVK logging to errors only
setenv("MVK_CONFIG_LOG_LEVEL", "1", 0);
}
if (!vid_autoswitch)
{
// CVAR from pre-Vulkan era has a priority over vk_device selection
setenv("MVK_CONFIG_FORCE_LOW_POWER_GPU", "1", 0);
}
// The following settings improve performance like suggested at
// https://github.com/KhronosGroup/MoltenVK/issues/581#issuecomment-487293665
setenv("MVK_CONFIG_SYNCHRONOUS_QUEUE_SUBMITS", "0", 0);
setenv("MVK_CONFIG_PRESENT_WITH_COMMAND_BUFFER", "0", 0);
try
{
m_vulkanDevice = new VulkanDevice();
fb = new VulkanFrameBuffer(nullptr, vid_fullscreen, m_vulkanDevice);
}
catch (std::exception const&)
{
ms_isVulkanEnabled = false;
SetupOpenGLView(ms_window, OpenGLProfile::Core);
}
}
else
#endif
#ifdef HAVE_SOFTPOLY
if (vid_preferbackend == 2)
{
SetupOpenGLView(ms_window, OpenGLProfile::Legacy);
fb = new PolyFrameBuffer(nullptr, vid_fullscreen);
}
else
#endif
{
SetupOpenGLView(ms_window, OpenGLProfile::Core);
}
if (fb == nullptr)
{
fb = new OpenGLRenderer::OpenGLFrameBuffer(0, vid_fullscreen);
}
fb->SetWindow(ms_window);
fb->SetMode(vid_fullscreen, vid_hidpi);
fb->SetSize(fb->GetClientWidth(), fb->GetClientHeight());
#ifdef HAVE_VULKAN
// This lame hack is a temporary workaround for strange performance issues
// with fullscreen window and Core Animation's Metal layer
// It is somehow related to initial window level and flags
// Toggling fullscreen -> window -> fullscreen mysteriously solves the problem
if (ms_isVulkanEnabled && vid_fullscreen)
{
fb->SetMode(false, vid_hidpi);
fb->SetMode(true, vid_hidpi);
}
#endif
return fb;
}
static CocoaWindow* GetWindow()
{
return ms_window;
}
private:
#ifdef HAVE_VULKAN
VulkanDevice *m_vulkanDevice = nullptr;
#endif
static CocoaWindow* ms_window;
static bool ms_isVulkanEnabled;
};
CocoaWindow* CocoaVideo::ms_window;
bool CocoaVideo::ms_isVulkanEnabled;
// ---------------------------------------------------------------------------
static SystemBaseFrameBuffer* frameBuffer;
SystemBaseFrameBuffer::SystemBaseFrameBuffer(void*, const bool fullscreen)
: DFrameBuffer(vid_defwidth, vid_defheight)
, m_fullscreen(false)
, m_hiDPI(false)
, m_window(nullptr)
{
assert(frameBuffer == nullptr);
frameBuffer = this;
FConsoleWindow::GetInstance().Show(false);
}
SystemBaseFrameBuffer::~SystemBaseFrameBuffer()
{
assert(frameBuffer == this);
frameBuffer = nullptr;
NSNotificationCenter* nc = [NSNotificationCenter defaultCenter];
[nc removeObserver:m_window
name:NSWindowDidMoveNotification
object:nil];
[nc removeObserver:m_window
name:NSWindowDidEndLiveResizeNotification
object:nil];
}
bool SystemBaseFrameBuffer::IsFullscreen()
{
return m_fullscreen;
}
void SystemBaseFrameBuffer::ToggleFullscreen(bool yes)
{
SetMode(yes, m_hiDPI);
}
void SystemBaseFrameBuffer::SetWindowSize(int width, int height)
{
if (width < VID_MIN_WIDTH || height < VID_MIN_HEIGHT)
{
return;
}
if (vid_fullscreen)
{
// Enter windowed mode in order to calculate title bar height
vid_fullscreen = false;
SetMode(false, m_hiDPI);
}
win_w = width;
win_h = height + GetTitleBarHeight();
SetMode(false, m_hiDPI);
[m_window center];
}
int SystemBaseFrameBuffer::GetTitleBarHeight() const
{
const NSRect windowFrame = [m_window frame];
const NSRect contentFrame = [m_window contentRectForFrameRect:windowFrame];
const int titleBarHeight = windowFrame.size.height - contentFrame.size.height;
return titleBarHeight;
}
int SystemBaseFrameBuffer::GetClientWidth()
{
const int clientWidth = I_GetContentViewSize(m_window).width;
return clientWidth > 0 ? clientWidth : GetWidth();
}
int SystemBaseFrameBuffer::GetClientHeight()
{
const int clientHeight = I_GetContentViewSize(m_window).height;
return clientHeight > 0 ? clientHeight : GetHeight();
}
void SystemBaseFrameBuffer::SetFullscreenMode()
{
if (!m_fullscreen)
{
[m_window setLevel:LEVEL_FULLSCREEN];
[m_window setStyleMask:STYLE_MASK_FULLSCREEN];
[m_window setHidesOnDeactivate:YES];
}
const NSRect screenFrame = [[m_window screen] frame];
[m_window setFrame:screenFrame display:YES];
}
void SystemBaseFrameBuffer::SetWindowedMode()
{
if (m_fullscreen)
{
[m_window setLevel:LEVEL_WINDOWED];
[m_window setStyleMask:STYLE_MASK_WINDOWED];
[m_window setHidesOnDeactivate:NO];
}
const int minimumFrameWidth = VID_MIN_WIDTH;
const int minimumFrameHeight = VID_MIN_HEIGHT + GetTitleBarHeight();
const NSSize minimumFrameSize = NSMakeSize(minimumFrameWidth, minimumFrameHeight);
[m_window setMinSize:minimumFrameSize];
const bool isFrameValid = win_x != -1 && win_y != -1
&& win_w >= minimumFrameWidth && win_h >= minimumFrameHeight;
if (!isFrameValid)
{
const NSRect screenSize = [[NSScreen mainScreen] frame];
win_x = screenSize.origin.x + screenSize.size.width / 10;
win_y = screenSize.origin.y + screenSize.size.height / 10;
win_w = screenSize.size.width * 8 / 10;
win_h = screenSize.size.height * 8 / 10 + GetTitleBarHeight();
}
const NSRect frameSize = NSMakeRect(win_x, win_y, win_w, win_h);
[m_window setFrame:frameSize display:YES];
[m_window enterFullscreenOnZoom];
}
void SystemBaseFrameBuffer::SetMode(const bool fullscreen, const bool hiDPI)
{
if ([m_window.contentView isKindOfClass:[OpenGLCocoaView class]])
{
NSOpenGLView* const glView = [m_window contentView];
[glView setWantsBestResolutionOpenGLSurface:hiDPI];
}
else
{
assert(m_window.screen != nil);
assert([m_window.contentView layer] != nil);
[m_window.contentView layer].contentsScale = hiDPI ? m_window.screen.backingScaleFactor : 1.0;
}
if (vid_nativefullscreen && fullscreen != m_fullscreen)
{
[m_window toggleFullScreen:(nil)];
}
else if (fullscreen)
{
SetFullscreenMode();
}
else
{
SetWindowedMode();
}
[m_window updateTitle];
if (![m_window isKeyWindow])
{
[m_window makeKeyAndOrderFront:nil];
}
m_fullscreen = fullscreen;
m_hiDPI = hiDPI;
}
void SystemBaseFrameBuffer::UseHiDPI(const bool hiDPI)
{
if (frameBuffer != nullptr)
{
frameBuffer->SetMode(frameBuffer->m_fullscreen, hiDPI);
}
}
void SystemBaseFrameBuffer::SetCursor(NSCursor* cursor)
{
if (frameBuffer != nullptr)
{
NSWindow* const window = frameBuffer->m_window;
id view = [window contentView];
[view setCursor:cursor];
[window invalidateCursorRectsForView:view];
}
}
void SystemBaseFrameBuffer::SetWindowVisible(bool visible)
{
if (frameBuffer != nullptr)
{
if (visible)
{
[frameBuffer->m_window orderFront:nil];
}
else
{
[frameBuffer->m_window orderOut:nil];
}
I_SetNativeMouse(!visible);
}
}
void SystemBaseFrameBuffer::SetWindowTitle(const char* title)
{
if (frameBuffer != nullptr)
{
NSString* const nsTitle = nullptr == title ? nil :
[NSString stringWithCString:title encoding:NSISOLatin1StringEncoding];
[frameBuffer->m_window setTitle:nsTitle];
}
}
// ---------------------------------------------------------------------------
SystemGLFrameBuffer::SystemGLFrameBuffer(void *hMonitor, bool fullscreen)
: SystemBaseFrameBuffer(hMonitor, fullscreen)
{
}
void SystemGLFrameBuffer::SetVSync(bool vsync)
{
const GLint value = vsync ? 1 : 0;
[[NSOpenGLContext currentContext] setValues:&value
forParameter:NSOpenGLCPSwapInterval];
}
void SystemGLFrameBuffer::SetMode(const bool fullscreen, const bool hiDPI)
{
NSOpenGLView* const glView = [m_window contentView];
[glView setWantsBestResolutionOpenGLSurface:hiDPI];
if (vid_nativefullscreen && fullscreen != m_fullscreen)
{
[m_window toggleFullScreen:(nil)];
}
else if (fullscreen)
{
SetFullscreenMode();
}
else
{
SetWindowedMode();
}
[m_window updateTitle];
if (![m_window isKeyWindow])
{
[m_window makeKeyAndOrderFront:nil];
}
m_fullscreen = fullscreen;
m_hiDPI = hiDPI;
}
void SystemGLFrameBuffer::SwapBuffers()
{
[[NSOpenGLContext currentContext] flushBuffer];
}
// ---------------------------------------------------------------------------
IVideo* Video;
// ---------------------------------------------------------------------------
void I_ShutdownGraphics()
{
if (NULL != screen)
{
delete screen;
screen = NULL;
}
delete Video;
Video = NULL;
}
void I_InitGraphics()
{
Video = new CocoaVideo;
}
// ---------------------------------------------------------------------------
CUSTOM_CVAR(Bool, vid_hidpi, true, CVAR_ARCHIVE | CVAR_GLOBALCONFIG | CVAR_NOINITCALL)
{
SystemBaseFrameBuffer::UseHiDPI(self);
}
// ---------------------------------------------------------------------------
bool I_SetCursor(FGameTexture *cursorpic)
{
NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
NSCursor* cursor = nil;
if (NULL != cursorpic && cursorpic->isValid())
{
// Create bitmap image representation
auto sbuffer = cursorpic->GetTexture()->CreateTexBuffer(0);
const NSInteger imageWidth = sbuffer.mWidth;
const NSInteger imageHeight = sbuffer.mHeight;
const NSInteger imagePitch = sbuffer.mWidth * 4;
NSBitmapImageRep* bitmapImageRep = [NSBitmapImageRep alloc];
[bitmapImageRep initWithBitmapDataPlanes:NULL
pixelsWide:imageWidth
pixelsHigh:imageHeight
bitsPerSample:8
samplesPerPixel:4
hasAlpha:YES
isPlanar:NO
colorSpaceName:NSDeviceRGBColorSpace
bytesPerRow:imagePitch
bitsPerPixel:0];
// Load bitmap data to representation
uint8_t* buffer = [bitmapImageRep bitmapData];
memcpy(buffer, sbuffer.mBuffer, imagePitch * imageHeight);
// Swap red and blue components in each pixel
for (size_t i = 0; i < size_t(imageWidth * imageHeight); ++i)
{
const size_t offset = i * 4;
std::swap(buffer[offset ], buffer[offset + 2]);
}
// Create image from representation and set it as cursor
NSData* imageData = [bitmapImageRep representationUsingType:NSPNGFileType
properties:[NSDictionary dictionary]];
NSImage* cursorImage = [[NSImage alloc] initWithData:imageData];
cursor = [[NSCursor alloc] initWithImage:cursorImage
hotSpot:NSMakePoint(0.0f, 0.0f)];
}
SystemBaseFrameBuffer::SetCursor(cursor);
[pool release];
return true;
}
NSSize I_GetContentViewSize(const NSWindow* const window)
{
const NSView* const view = [window contentView];
const NSSize frameSize = [view frame].size;
return (vid_hidpi)
? [view convertSizeToBacking:frameSize]
: frameSize;
}
void I_SetMainWindowVisible(bool visible)
{
SystemBaseFrameBuffer::SetWindowVisible(visible);
}
// each platform has its own specific version of this function.
void I_SetWindowTitle(const char* title)
{
SystemBaseFrameBuffer::SetWindowTitle(title);
}
#ifdef HAVE_VULKAN
void I_GetVulkanDrawableSize(int *width, int *height)
{
NSWindow* const window = CocoaVideo::GetWindow();
assert(window != nil);
const NSSize size = I_GetContentViewSize(window);
if (width != nullptr)
{
*width = int(size.width);
}
if (height != nullptr)
{
*height = int(size.height);
}
}
bool I_GetVulkanPlatformExtensions(unsigned int *count, const char **names)
{
static std::vector<const char*> extensions;
if (extensions.empty())
{
uint32_t extensionPropertyCount = 0;
vkEnumerateInstanceExtensionProperties(nullptr, &extensionPropertyCount, nullptr);
std::vector<VkExtensionProperties> extensionProperties(extensionPropertyCount);
vkEnumerateInstanceExtensionProperties(nullptr, &extensionPropertyCount, extensionProperties.data());
static const char* const EXTENSION_NAMES[] =
{
VK_KHR_SURFACE_EXTENSION_NAME, // KHR_surface, required
VK_EXT_METAL_SURFACE_EXTENSION_NAME, // EXT_metal_surface, optional, preferred
VK_MVK_MACOS_SURFACE_EXTENSION_NAME, // MVK_macos_surface, optional, deprecated
};
for (const VkExtensionProperties &currentProperties : extensionProperties)
{
for (const char *const extensionName : EXTENSION_NAMES)
{
if (strcmp(currentProperties.extensionName, extensionName) == 0)
{
extensions.push_back(extensionName);
}
}
}
}
static const unsigned int extensionCount = static_cast<unsigned int>(extensions.size());
assert(extensionCount >= 2); // KHR_surface + at least one of the platform surface extentions
if (count == nullptr && names == nullptr)
{
return false;
}
else if (names == nullptr)
{
*count = extensionCount;
return true;
}
else
{
const bool result = *count >= extensionCount;
*count = std::min(*count, extensionCount);
for (unsigned int i = 0; i < *count; ++i)
{
names[i] = extensions[i];
}
return result;
}
}
bool I_CreateVulkanSurface(VkInstance instance, VkSurfaceKHR *surface)
{
NSView *const view = CocoaVideo::GetWindow().contentView;
CALayer *const layer = view.layer;
// Set magnification filter for swapchain image when it's copied to a physical display surface
// This is needed for gfx-portability because MoltenVK uses preferred nearest sampling by default
const char *const magFilterEnv = getenv("MVK_CONFIG_SWAPCHAIN_MAG_FILTER_USE_NEAREST");
const bool useNearestFilter = magFilterEnv == nullptr || strtol(magFilterEnv, nullptr, 0) != 0;
layer.magnificationFilter = useNearestFilter ? kCAFilterNearest : kCAFilterLinear;
if (vkCreateMetalSurfaceEXT)
{
// Preferred surface creation path
VkMetalSurfaceCreateInfoEXT surfaceCreateInfo;
surfaceCreateInfo.sType = VK_STRUCTURE_TYPE_METAL_SURFACE_CREATE_INFO_EXT;
surfaceCreateInfo.pNext = nullptr;
surfaceCreateInfo.flags = 0;
surfaceCreateInfo.pLayer = static_cast<CAMetalLayer*>(layer);
const VkResult result = vkCreateMetalSurfaceEXT(instance, &surfaceCreateInfo, nullptr, surface);
return result == VK_SUCCESS;
}
// Deprecated surface creation path
VkMacOSSurfaceCreateInfoMVK windowCreateInfo;
windowCreateInfo.sType = VK_STRUCTURE_TYPE_MACOS_SURFACE_CREATE_INFO_MVK;
windowCreateInfo.pNext = nullptr;
windowCreateInfo.flags = 0;
windowCreateInfo.pView = view;
const VkResult result = vkCreateMacOSSurfaceMVK(instance, &windowCreateInfo, nullptr, surface);
return result == VK_SUCCESS;
}
#endif
namespace
{
TArray<uint8_t> polyPixelBuffer;
GLuint polyTexture;
int polyWidth = -1;
int polyHeight = -1;
int polyVSync = -1;
}
void I_PolyPresentInit()
{
ogl_LoadFunctions();
glGenTextures(1, &polyTexture);
assert(polyTexture != 0);
glEnable(GL_TEXTURE_RECTANGLE_ARB);
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, polyTexture);
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
}
uint8_t *I_PolyPresentLock(int w, int h, bool vsync, int &pitch)
{
static const int PIXEL_BYTES = 4;
if (polyPixelBuffer.Size() == 0 || w != polyWidth || h != polyHeight)
{
polyPixelBuffer.Resize(w * h * PIXEL_BYTES);
polyWidth = w;
polyHeight = h;
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0.0, w, h, 0.0, -1.0, 1.0);
glViewport(0, 0, w, h);
}
if (vsync != polyVSync)
{
const GLint value = vsync ? 1 : 0;
[[NSOpenGLContext currentContext] setValues:&value
forParameter:NSOpenGLCPSwapInterval];
}
pitch = w * PIXEL_BYTES;
return &polyPixelBuffer[0];
}
void I_PolyPresentUnlock(int x, int y, int w, int h)
{
glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA8, w, h, 0, GL_BGRA, GL_UNSIGNED_BYTE, &polyPixelBuffer[0]);
glBegin(GL_QUADS);
glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
glTexCoord2f(0.0f, 0.0f);
glVertex2f(0.0f, 0.0f);
glTexCoord2f(w, 0.0f);
glVertex2f(w, 0.0f);
glTexCoord2f(w, h);
glVertex2f(w, h);
glTexCoord2f(0.0f, h);
glVertex2f(0.0f, h);
glEnd();
glFlush();
[[NSOpenGLContext currentContext] flushBuffer];
}
void I_PolyPresentDeinit()
{
glBindTexture(GL_TEXTURE_2D, 0);
glDeleteTextures(1, &polyTexture);
}