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Infrared API

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This commit is contained in:
Lior Halphon 2016-07-18 22:05:11 +03:00
parent 0fbc72f197
commit 1d35c04ab1
3 changed files with 41 additions and 2 deletions
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10
Core/gb.c
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@ -466,6 +466,16 @@ void GB_set_rgb_encode_callback(GB_gameboy_t *gb, GB_rgb_encode_callback_t callb
gb->rgb_encode_callback = callback;
}
void GB_set_infrared_callback(GB_gameboy_t *gb, GB_infrared_callback_t callback)
{
gb->infrared_callback = callback;
}
void GB_set_infrared_input(GB_gameboy_t *gb, bool state)
{
gb->infrared_input = state;
}
void GB_set_sample_rate(GB_gameboy_t *gb, unsigned int sample_rate)
{
if (gb->audio_buffer) {

9
Core/gb.h
View File

@ -155,6 +155,7 @@ typedef void (*GB_vblank_callback_t)(GB_gameboy_t *gb);
typedef void (*GB_log_callback_t)(GB_gameboy_t *gb, const char *string, GB_log_attributes attributes);
typedef char *(*GB_input_callback_t)(GB_gameboy_t *gb);
typedef uint32_t (*GB_rgb_encode_callback_t)(GB_gameboy_t *gb, uint8_t r, uint8_t g, uint8_t b);
typedef void (*GB_infrared_callback_t)(GB_gameboy_t *gb, bool on);
typedef struct {
enum {
@ -210,6 +211,10 @@ typedef struct GB_gameboy_s {
bool halted;
bool stopped;
bool boot_rom_finished;
/* Misc state*/
/* IR */
bool infrared_input;
);
/* HDMA */
@ -342,6 +347,7 @@ typedef struct GB_gameboy_s {
GB_input_callback_t async_input_callback;
GB_rgb_encode_callback_t rgb_encode_callback;
GB_vblank_callback_t vblank_callback;
GB_infrared_callback_t infrared_callback;
/*** Debugger ***/
bool debug_stopped;
@ -398,5 +404,6 @@ void GB_set_input_callback(GB_gameboy_t *gb, GB_input_callback_t callback);
void GB_set_async_input_callback(GB_gameboy_t *gb, GB_input_callback_t callback);
void GB_set_sample_rate(GB_gameboy_t *gb, unsigned int sample_rate);
void GB_set_rgb_encode_callback(GB_gameboy_t *gb, GB_rgb_encode_callback_t callback);
void GB_set_infrared_callback(GB_gameboy_t *gb, GB_infrared_callback_t callback);
void GB_set_infrared_input(GB_gameboy_t *gb, bool state);
#endif /* GB_h */

24
Core/memory.c
View File

@ -160,7 +160,16 @@ static uint8_t read_high_memory(GB_gameboy_t *gb, uint16_t addr)
}
return (gb->io_registers[GB_IO_KEY1] & 0x7F) | (gb->cgb_double_speed? 0xFE : 0x7E);
case GB_IO_RP: {
if (!gb->is_cgb) return 0xFF;
/* You will read your own IR LED if it's on. */
bool read_value = gb->infrared_input || (gb->io_registers[GB_IO_RP] & 1);
uint8_t ret = (gb->io_registers[GB_IO_RP] & 0xC1) | 0x3C;
if ((gb->io_registers[GB_IO_RP] & 0xC0) == 0xC0 && read_value) {
ret |= read_value;
}
return ret;
}
default:
if ((addr & 0xFF) >= GB_IO_NR10 && (addr & 0xFF) <= GB_IO_WAV_END) {
return GB_apu_read(gb, addr & 0xFF);
@ -440,6 +449,19 @@ static void write_high_memory(GB_gameboy_t *gb, uint16_t addr, uint8_t value)
}
return;
case GB_IO_RP: {
if (!gb->is_cgb) {
return;
}
if ((value & 1) != (gb->io_registers[GB_IO_RP] & 1)) {
if (gb->infrared_callback) {
gb->infrared_callback(gb, value & 1);
}
}
gb->io_registers[GB_IO_RP] = value;
return;
}
default:
if ((addr & 0xFF) >= GB_IO_NR10 && (addr & 0xFF) <= GB_IO_WAV_END) {
GB_apu_write(gb, addr & 0xFF, value);