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Corrects bug whereby changing pixel mode mid-line will produce an improper amount of data.

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This commit is contained in:
Thomas Harte 2020-01-02 23:18:21 -05:00
parent 617e0bada9
commit 455e831b87
2 changed files with 17 additions and 8 deletions
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21
Machines/Atari/ST/Video.cpp
View File

@ -513,8 +513,8 @@ void Video::update_output_mode() {
video_stream_.set_bpp(output_bpp_);
}
const int freqs[] = {50, 60, 72};
printf("%d, %d -> %d [%d %d]\n", x_ / 2, y_, freqs[int(field_frequency_)], horizontal_.enable, vertical_.enable);
// const int freqs[] = {50, 60, 72};
// printf("%d, %d -> %d [%d %d]\n", x_ / 2, y_, freqs[int(field_frequency_)], horizontal_.enable, vertical_.enable);
}
// MARK: - The shifter
@ -731,10 +731,13 @@ void Video::VideoStream::output_pixels(int duration) {
}
void Video::VideoStream::flush_pixels() {
switch(bpp_) {
case OutputBpp::One: crt_.output_data(pixel_pointer_ >> 1, size_t(pixel_pointer_)); break;
default: crt_.output_data(pixel_pointer_); break;
case OutputBpp::Four: crt_.output_data(pixel_pointer_ << 1, size_t(pixel_pointer_)); break;
// Flush only if there's something to flush.
if(pixel_pointer_) {
switch(bpp_) {
case OutputBpp::One: crt_.output_data(pixel_pointer_ >> 1, size_t(pixel_pointer_)); break;
default: crt_.output_data(pixel_pointer_); break;
case OutputBpp::Four: crt_.output_data(pixel_pointer_ << 1, size_t(pixel_pointer_)); break;
}
}
pixel_pointer_ = 0;
@ -742,8 +745,14 @@ void Video::VideoStream::flush_pixels() {
}
void Video::VideoStream::set_bpp(OutputBpp bpp) {
// Terminate the allocated block of memory (if any).
flush_pixels();
// Reset the shifter.
// TODO: is flushing like this correct?
output_shifter_ = 0;
// Store the new BPP.
bpp_ = bpp;
}

4
OSBindings/Mac/Clock Signal.xcodeproj/xcshareddata/xcschemes/Clock Signal.xcscheme
View File

@ -68,8 +68,8 @@
</TestAction>
<LaunchAction
buildConfiguration = "Release"
selectedDebuggerIdentifier = ""
selectedLauncherIdentifier = "Xcode.IDEFoundation.Launcher.PosixSpawn"
selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
enableASanStackUseAfterReturn = "YES"
disableMainThreadChecker = "YES"
launchStyle = "0"