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Add a unified cross platform OpenGL core profile binding (#52)

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This commit is contained in:
hecks
2021-08-07 21:56:00 +02:00
committed by GitHub
parent 7709e1e5f8
commit 5bf68b5731
16 changed files with 4466 additions and 22 deletions
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49
source/Irrlicht/CNSOGLManager.mm
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@@ -6,6 +6,7 @@
#ifdef _IRR_COMPILE_WITH_NSOGL_MANAGER_
#include <mach-o/dyld.h>
#include "os.h"
namespace irr
@@ -37,15 +38,15 @@ void CNSOGLManager::terminate()
}
bool CNSOGLManager::generateSurface()
{
{
if (Params.DriverType == video::EDT_OPENGL)
{
int alphaSize = Params.WithAlphaChannel ? 4 : 0;
int depthSize = Params.ZBufferBits;
if (Params.WithAlphaChannel && Params.Bits == 32)
alphaSize = 8;
NSOpenGLPixelFormatAttribute Attribs[] =
{
NSOpenGLPFANoRecovery,
@@ -62,7 +63,7 @@ bool CNSOGLManager::generateSurface()
};
u32 Steps = 6;
// Choose the best pixel format.
do
{
@@ -85,7 +86,7 @@ bool CNSOGLManager::generateSurface()
if (Attribs[8])
{
Attribs[8] = 0;
if (Params.AntiAlias)
{
Attribs[10] = 1;
@@ -100,7 +101,7 @@ bool CNSOGLManager::generateSurface()
if (Attribs[14])
{
Attribs[14] = 0;
if (Params.AntiAlias)
{
Attribs[10] = 1;
@@ -131,23 +132,23 @@ bool CNSOGLManager::generateSurface()
os::Printer::log("Could not get pixel format.");
return false;
}
PixelFormat = [[NSOpenGLPixelFormat alloc] initWithAttributes:Attribs];
}
while (PixelFormat == nil);
if (Params.AntiAlias && !Attribs[10])
os::Printer::log("No multisampling.");
if (Params.WithAlphaChannel && !Attribs[8])
os::Printer::log("No alpha.");
if (Params.Stencilbuffer && !Attribs[14])
os::Printer::log("No stencil buffer.");
if (Params.ZBufferBits > Attribs[4])
os::Printer::log("No full depth buffer.");
if (Params.Bits > Attribs[6])
os::Printer::log("No full color buffer.");
}
@@ -164,7 +165,7 @@ void CNSOGLManager::destroySurface()
bool CNSOGLManager::generateContext()
{
NSOpenGLContext* Context = [[NSOpenGLContext alloc] initWithFormat:PixelFormat shareContext:nil];
GLint Vsync = Params.Vsync ? 1 : 0;
[Context setValues:&Vsync forParameter:NSOpenGLCPSwapInterval];
@@ -176,7 +177,7 @@ bool CNSOGLManager::generateContext()
// set exposed data
CurrentContext.OpenGLOSX.Context = Context;
if (!PrimaryContext.OpenGLOSX.Context)
PrimaryContext.OpenGLOSX.Context = CurrentContext.OpenGLOSX.Context;
@@ -196,7 +197,7 @@ bool CNSOGLManager::activateContext(const SExposedVideoData& videoData, bool res
if ((NSOpenGLContext*)videoData.OpenGLOSX.Context != [NSOpenGLContext currentContext])
{
[(NSOpenGLContext*)videoData.OpenGLOSX.Context makeCurrentContext];
CurrentContext = videoData;
}
}
@@ -206,11 +207,11 @@ bool CNSOGLManager::activateContext(const SExposedVideoData& videoData, bool res
if ((NSOpenGLContext*)PrimaryContext.OpenGLOSX.Context != [NSOpenGLContext currentContext])
{
[(NSOpenGLContext*)PrimaryContext.OpenGLOSX.Context makeCurrentContext];
CurrentContext = PrimaryContext;
}
}
return true;
}
@@ -225,11 +226,23 @@ void CNSOGLManager::destroyContext()
[(NSOpenGLContext *)CurrentContext.OpenGLOSX.Context clearDrawable];
[(NSOpenGLContext *)CurrentContext.OpenGLOSX.Context release];
[NSOpenGLContext clearCurrentContext];
CurrentContext.OpenGLOSX.Context = nil;
}
}
// It appears that there is no separate GL proc address getter on OSX.
// https://developer.apple.com/library/archive/documentation/GraphicsImaging/Conceptual/OpenGL-MacProgGuide/opengl_entrypts/opengl_entrypts.html
void* CNSOGLManager::getProcAddress(const std::string &procName)
{
NSSymbol symbol = NULL;
// Allocate a buffer for the name, an underscore prefix, and a cstring terminator.
std::string mangledName = "_" + procName;
if (NSIsSymbolNameDefined(mangledName.c_str()))
symbol = NSLookupAndBindSymbol(mangledName.c_str());
return symbol ? NSAddressOfSymbol(symbol) : NULL;
}
bool CNSOGLManager::swapBuffers()
{
[(NSOpenGLContext*)CurrentContext.OpenGLOSX.Context flushBuffer];