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3DS: Gyro and accel support

This commit is contained in:
Jeffrey Pfau 2015-08-29 14:40:11 -07:00
parent 54c8054b79
commit 7d7efe5ebb
1 changed files with 48 additions and 0 deletions
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48
src/platform/3ds/main.c
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@ -19,6 +19,12 @@
FS_archive sdmcArchive; FS_archive sdmcArchive;
struct GBA3DSRotationSource {
struct GBARotationSource d;
accelVector accel;
angularRate gyro;
};
extern bool allocateRomBuffer(void); extern bool allocateRomBuffer(void);
static void GBA3DSLog(struct GBAThread* thread, enum GBALogLevel level, const char* format, va_list args); static void GBA3DSLog(struct GBAThread* thread, enum GBALogLevel level, const char* format, va_list args);
static struct VFile* logFile; static struct VFile* logFile;
@ -59,8 +65,35 @@ static int _pollInput(void) {
return keys; return keys;
} }
static void _sampleRotation(struct GBARotationSource* source) {
struct GBA3DSRotationSource* rotation = (struct GBA3DSRotationSource*) source;
// Work around ctrulib getting the entries wrong
rotation->accel = *(accelVector*)& hidSharedMem[0x48];
rotation->gyro = *(angularRate*)& hidSharedMem[0x5C];
}
static int32_t _readTiltX(struct GBARotationSource* source) {
struct GBA3DSRotationSource* rotation = (struct GBA3DSRotationSource*) source;
return rotation->accel.x << 18L;
}
static int32_t _readTiltY(struct GBARotationSource* source) {
struct GBA3DSRotationSource* rotation = (struct GBA3DSRotationSource*) source;
return rotation->accel.y << 18L;
}
static int32_t _readGyroZ(struct GBARotationSource* source) {
struct GBA3DSRotationSource* rotation = (struct GBA3DSRotationSource*) source;
return rotation->gyro.y << 18L; // Yes, y
}
int main() { int main() {
struct GBAContext context; struct GBAContext context;
struct GBA3DSRotationSource rotation;
rotation.d.sample = _sampleRotation;
rotation.d.readTiltX = _readTiltX;
rotation.d.readTiltY = _readTiltY;
rotation.d.readGyroZ = _readGyroZ;
if (!allocateRomBuffer()) { if (!allocateRomBuffer()) {
return 1; return 1;
@ -89,6 +122,7 @@ int main() {
}; };
GBAConfigLoadDefaults(&context.config, &opts); GBAConfigLoadDefaults(&context.config, &opts);
context.gba->logHandler = GBA3DSLog; context.gba->logHandler = GBA3DSLog;
context.gba->rotationSource = &rotation.d;
struct GBAVideoSoftwareRenderer renderer; struct GBAVideoSoftwareRenderer renderer;
GBAVideoSoftwareRendererCreate(&renderer); GBAVideoSoftwareRendererCreate(&renderer);
@ -121,6 +155,13 @@ int main() {
continue; continue;
} }
if (context.gba->memory.hw.devices & HW_TILT) {
HIDUSER_EnableAccelerometer();
}
if (context.gba->memory.hw.devices & HW_GYRO) {
HIDUSER_EnableGyroscope();
}
#if RESAMPLE_LIBRARY == RESAMPLE_BLIP_BUF #if RESAMPLE_LIBRARY == RESAMPLE_BLIP_BUF
blip_set_rates(context.gba->audio.left, GBA_ARM7TDMI_FREQUENCY, 48000); blip_set_rates(context.gba->audio.left, GBA_ARM7TDMI_FREQUENCY, 48000);
blip_set_rates(context.gba->audio.right, GBA_ARM7TDMI_FREQUENCY, 48000); blip_set_rates(context.gba->audio.right, GBA_ARM7TDMI_FREQUENCY, 48000);
@ -145,6 +186,13 @@ int main() {
_drawEnd(); _drawEnd();
} }
GBAContextStop(&context); GBAContextStop(&context);
if (context.gba->memory.hw.devices & HW_TILT) {
HIDUSER_DisableAccelerometer();
}
if (context.gba->memory.hw.devices & HW_GYRO) {
HIDUSER_DisableGyroscope();
}
} }
GBAContextDeinit(&context); GBAContextDeinit(&context);