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Merge pull request #600 from TomHarte/MacCrash

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Reintroduces proper locking of the Mac OpenGL context.
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Thomas Harte 2019-03-03 15:25:26 -05:00 committed by GitHub
commit 72b4bf9c98
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2 changed files with 19 additions and 13 deletions
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16
OSBindings/Mac/Clock Signal/Views/CSOpenGLView.m
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@ -52,16 +52,20 @@ static CVReturn DisplayLinkCallback(CVDisplayLinkRef displayLink, const CVTimeSt
- (void)drawAtTime:(const CVTimeStamp *)now frequency:(double)frequency
{
// Draw the display now regardless of other activity.
[self performWithGLContext:^{
[self.delegate openGLViewRedraw:self event:CSOpenGLViewRedrawEventTimer];
CGLFlushDrawable([[self openGLContext] CGLContextObj]);
}];
[self redrawWithEvent:CSOpenGLViewRedrawEventTimer];
}
- (void)drawRect:(NSRect)dirtyRect
{
[self.delegate openGLViewRedraw:self event:CSOpenGLViewRedrawEventAppKit];
[self redrawWithEvent:CSOpenGLViewRedrawEventAppKit];
}
- (void)redrawWithEvent:(CSOpenGLViewRedrawEvent)event
{
[self performWithGLContext:^{
[self.delegate openGLViewRedraw:self event:event];
CGLFlushDrawable([[self openGLContext] CGLContextObj]);
}];
}
- (void)invalidate

16
Outputs/OpenGL/ScanTarget.cpp
View File

@ -679,14 +679,16 @@ void ScanTarget::update(int output_width, int output_height) {
void ScanTarget::draw(int output_width, int output_height) {
while(is_drawing_.test_and_set());
// Copy the accumulation texture to the target.
test_gl(glBindFramebuffer, GL_FRAMEBUFFER, target_framebuffer_);
test_gl(glViewport, 0, 0, (GLsizei)output_width, (GLsizei)output_height);
if(accumulation_texture_) {
// Copy the accumulation texture to the target.
test_gl(glBindFramebuffer, GL_FRAMEBUFFER, target_framebuffer_);
test_gl(glViewport, 0, 0, (GLsizei)output_width, (GLsizei)output_height);
test_gl(glClearColor, 0.0f, 0.0f, 0.0f, 0.0f);
test_gl(glClear, GL_COLOR_BUFFER_BIT);
accumulation_texture_->bind_texture();
accumulation_texture_->draw(float(output_width) / float(output_height), 4.0f / 255.0f);
test_gl(glClearColor, 0.0f, 0.0f, 0.0f, 0.0f);
test_gl(glClear, GL_COLOR_BUFFER_BIT);
accumulation_texture_->bind_texture();
accumulation_texture_->draw(float(output_width) / float(output_height), 4.0f / 255.0f);
}
is_drawing_.clear();
}