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Converts 6560 to more project normative templated form.

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Thomas Harte
2018-04-11 22:00:42 -04:00
parent 3ad0b31db8
commit 428b6145fa
3 changed files with 30 additions and 18 deletions
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Components/6560/6560.cpp
+1 -1
View File
@@ -10,7 +10,7 @@
#include <cstring>
using namespace MOS;
using namespace MOS::MOS6560;
AudioGenerator::AudioGenerator(Concurrency::DeferringAsyncTaskQueue &audio_queue) :
audio_queue_(audio_queue) {}
Components/6560/6560.hpp
+18 -7
View File
@@ -16,6 +16,7 @@
#include "../../Outputs/Speaker/Implementation/SampleSource.hpp"
namespace MOS {
namespace MOS6560 {
// audio state
class AudioGenerator: public ::Outputs::Speaker::SampleSource {
@@ -40,6 +41,17 @@ class AudioGenerator: public ::Outputs::Speaker::SampleSource {
int16_t range_multiplier_ = 1;
};
struct BusHandler {
void perform_read(uint16_t address, uint8_t *pixel_data, uint8_t *colour_data) {
*pixel_data = 0xff;
*colour_data = 0xff;
}
};
enum class OutputMode {
PAL, NTSC
};
/*!
The 6560 Video Interface Chip ('VIC') is a video and audio output chip; it therefore vends both a @c CRT and a @c Speaker.
@@ -48,9 +60,10 @@ class AudioGenerator: public ::Outputs::Speaker::SampleSource {
@c set_register and @c get_register provide register access.
*/
template <class T> class MOS6560 {
template <class BusHandler> class MOS6560 {
public:
MOS6560() :
MOS6560(BusHandler &bus_handler) :
bus_handler_(bus_handler),
crt_(new Outputs::CRT::CRT(65*4, 4, Outputs::CRT::DisplayType::NTSC60, 2)),
audio_generator_(audio_queue_),
speaker_(audio_generator_)
@@ -88,10 +101,6 @@ template <class T> class MOS6560 {
speaker_.set_high_frequency_cutoff(cutoff);
}
enum OutputMode {
PAL, NTSC
};
/*!
Sets the output mode to either PAL or NTSC.
*/
@@ -248,7 +257,7 @@ template <class T> class MOS6560 {
uint8_t pixel_data;
uint8_t colour_data;
static_cast<T *>(this)->perform_read(fetch_address, &pixel_data, &colour_data);
bus_handler_.perform_read(fetch_address, &pixel_data, &colour_data);
// TODO: there should be a further two-cycle delay on pixels being output; the reverse bit should
// divide the byte it is set for 3:1 and then continue as usual.
@@ -422,6 +431,7 @@ template <class T> class MOS6560 {
}
private:
BusHandler &bus_handler_;
std::unique_ptr<Outputs::CRT::CRT> crt_;
Concurrency::DeferringAsyncTaskQueue audio_queue_;
@@ -511,6 +521,7 @@ template <class T> class MOS6560 {
OutputMode output_mode_;
};
}
}
#endif /* _560_hpp */