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#include "letterbox.h"
#include "printf.h"
#include "regs.h"
typedef enum LetterboxState {
/* 0 */ LETTERBOX_STATE_IDLE,
/* 1 */ LETTERBOX_STATE_GROWING,
/* 2 */ LETTERBOX_STATE_SHRINKING
} LetterboxState;
s32 sLetterboxState = LETTERBOX_STATE_IDLE;
s32 sLetterboxSizeTarget = 0;
s32 sLetterboxSize = 0;
void Letterbox_SetSizeTarget(s32 target) {
if (R_HREG_MODE == HREG_MODE_LETTERBOX && R_LETTERBOX_ENABLE_LOGS == 1) {
PRINTF("shrink_window_setval(%d)\n", target);
}
sLetterboxSizeTarget = target;
}
u32 Letterbox_GetSizeTarget(void) {
return sLetterboxSizeTarget;
}
void Letterbox_SetSize(s32 size) {
if (R_HREG_MODE == HREG_MODE_LETTERBOX && R_LETTERBOX_ENABLE_LOGS == 1) {
PRINTF("shrink_window_setnowval(%d)\n", size);
}
sLetterboxSize = size;
}
u32 Letterbox_GetSize(void) {
return sLetterboxSize;
}
void Letterbox_Init(void) {
if (R_HREG_MODE == HREG_MODE_LETTERBOX && R_LETTERBOX_ENABLE_LOGS == 1) {
PRINTF("shrink_window_init()\n");
}
sLetterboxState = LETTERBOX_STATE_IDLE;
sLetterboxSizeTarget = 0;
sLetterboxSize = 0;
}
void Letterbox_Destroy(void) {
if (R_HREG_MODE == HREG_MODE_LETTERBOX && R_LETTERBOX_ENABLE_LOGS == 1) {
PRINTF("shrink_window_cleanup()\n");
}
sLetterboxSize = 0;
}
void Letterbox_Update(s32 updateRate) {
s32 step;
if (updateRate == 3) {
step = 10;
} else {
step = 30 / updateRate;
}
if (sLetterboxSize < sLetterboxSizeTarget) {
if (sLetterboxState != LETTERBOX_STATE_GROWING) {
sLetterboxState = LETTERBOX_STATE_GROWING;
}
if (sLetterboxSize + step < sLetterboxSizeTarget) {
sLetterboxSize += step;
} else {
sLetterboxSize = sLetterboxSizeTarget;
}
} else if (sLetterboxSizeTarget < sLetterboxSize) {
if (sLetterboxState != LETTERBOX_STATE_SHRINKING) {
sLetterboxState = LETTERBOX_STATE_SHRINKING;
}
if (sLetterboxSizeTarget < sLetterboxSize - step) {
sLetterboxSize -= step;
} else {
sLetterboxSize = sLetterboxSizeTarget;
}
} else {
sLetterboxState = LETTERBOX_STATE_IDLE;
}
if (DEBUG_FEATURES && (R_HREG_MODE == HREG_MODE_LETTERBOX)) {
if (R_LETTERBOX_INIT != HREG_MODE_LETTERBOX) {
R_LETTERBOX_INIT = HREG_MODE_LETTERBOX;
R_LETTERBOX_ENABLE_LOGS = 0;
HREG(82) = 0; // this reg is not used in this mode
R_LETTERBOX_STATE = 0;
R_LETTERBOX_SIZE = 0;
R_LETTERBOX_TARGET_SIZE = 0;
R_LETTERBOX_STEP = 0;
// these regs are not used in this mode
HREG(87) = 0;
HREG(88) = 0;
HREG(89) = 0;
}
R_LETTERBOX_STATE = sLetterboxState;
R_LETTERBOX_SIZE = sLetterboxSize;
R_LETTERBOX_TARGET_SIZE = sLetterboxSizeTarget;
R_LETTERBOX_STEP = step;
}
}
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