VuoSyphonSender.m

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#import "VuoSyphonSender.h"
#include "VuoImageRenderer.h"
#include <OpenGL/OpenGL.h>
#include <OpenGL/CGLMacro.h>
#include "VuoGlContext.h"
 
#ifdef VUO_COMPILER
VuoModuleMetadata({
                     "title" : "VuoSyphonSender",
                     "dependencies" : [
                         "AppKit.framework",
                         "VuoGlContext"
                     ]
                 });
#endif
 
@implementation VuoSyphonSender
 
@synthesize syphonServer;
 
- (void) initServerWithName:(NSString*)name
{
    VUOLOG_PROFILE_BEGIN(mainQueue);
    dispatch_sync(dispatch_get_main_queue(), ^{
        VUOLOG_PROFILE_END(mainQueue);
        VuoGlContext_perform(^(CGLContextObj cgl_ctx){
            syphonServer = [[SyphonServer alloc] initWithName:name context:cgl_ctx options:nil];
        });
    });
}
 
- (void) publishFrame:(VuoImage)image
{
    if ([syphonServer hasClients] && image)
    {
        if (image->pixelsWide < 1 || image->pixelsHigh < 1)
            return;
 
        VuoGlContext_perform(^(CGLContextObj cgl_ctx){
            VuoShader_resetContext(cgl_ctx);
 
            // Syphon draws its triangles backwards, so we have to temporarily turn off backface culling.
            glDisable(GL_CULL_FACE);
 
            [syphonServer publishFrameTexture:image->glTextureName
                        textureTarget:GL_TEXTURE_2D
                        imageRegion:NSMakeRect(0, 0, image->pixelsWide, image->pixelsHigh)
                        textureDimensions:NSMakeSize(image->pixelsWide, image->pixelsHigh)
                        flipped:NO];
 
            glEnable(GL_CULL_FACE);
        });
    }
}
 
- (void) setName:(NSString*)newName
{
    VUOLOG_PROFILE_BEGIN(mainQueue);
    dispatch_sync(dispatch_get_main_queue(), ^{
                      VUOLOG_PROFILE_END(mainQueue);
                      syphonServer.name = newName;
                  });
}
 
- (void) stop
{
    VUOLOG_PROFILE_BEGIN(mainQueue);
    dispatch_sync(dispatch_get_main_queue(), ^{
                      VUOLOG_PROFILE_END(mainQueue);
                      [syphonServer stop];
                      [syphonServer release];
                  });
}
 
@end