diff options
Diffstat (limited to 'src/pc_screen_effect.c')
| -rw-r--r-- | src/pc_screen_effect.c | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/src/pc_screen_effect.c b/src/pc_screen_effect.c new file mode 100644 index 000000000..5cc09df71 --- /dev/null +++ b/src/pc_screen_effect.c @@ -0,0 +1,156 @@ +#include "global.h" +#include "task.h" +#include "gpu_regs.h" +#include "palette.h" + +static void sub_80A0AC0(TaskFunc func, u16 a2, UNUSED u16 a3, u8 priority); +static void sub_80A0B0C(u8 taskId); +static void sub_80A0C78(u8 taskId); + +void sub_80A0A48(u16 a1, u16 a2, u8 a3) +{ + sub_80A0AC0(sub_80A0B0C, a1, a2, a3); +} + +void sub_80A0A70(u16 a1, u16 a2, u8 a3) +{ + sub_80A0AC0(sub_80A0C78, a1, a2, a3); +} + +bool8 sub_80A0A98(void) +{ + return FuncIsActiveTask(sub_80A0B0C); +} + +bool8 sub_80A0AAC(void) +{ + return FuncIsActiveTask(sub_80A0C78); +} + +static void sub_80A0AC0(TaskFunc func, u16 a2, UNUSED u16 a3, u8 priority) +{ + u8 taskId = CreateTask(func, priority); + + gTasks[taskId].data[0] = 0; + gTasks[taskId].data[1] = a2 == 0 ? 16 : a2; + gTasks[taskId].data[2] = a2 == 0 ? 20 : a2; + gTasks[taskId].func(taskId); +} + +static void sub_80A0B0C(u8 taskId) +{ + struct Task *task = &gTasks[taskId]; + + switch (task->data[0]) + { + case 0: + task->data[3] = 120; + task->data[4] = 120; + task->data[5] = 80; + task->data[6] = 81; + SetGpuRegBits(REG_OFFSET_DISPCNT, DISPCNT_WIN0_ON); + SetGpuReg(REG_OFFSET_WIN0H, WIN_RANGE(task->data[3], task->data[4])); + SetGpuReg(REG_OFFSET_WIN0V, WIN_RANGE(task->data[5], task->data[6])); + SetGpuReg(REG_OFFSET_WININ, WININ_WIN0_BG_ALL | WININ_WIN0_OBJ | WININ_WIN0_CLR); + SetGpuReg(REG_OFFSET_WINOUT, 0); + break; + case 1: + task->data[7] = GetGpuReg(REG_OFFSET_BLDCNT); + task->data[8] = GetGpuReg(REG_OFFSET_BLDY); + SetGpuReg(REG_OFFSET_BLDCNT, BLDCNT_TGT1_BG0 | BLDCNT_TGT1_BG1 | BLDCNT_TGT1_BG2 | BLDCNT_TGT1_BG3 | BLDCNT_TGT1_OBJ | BLDCNT_TGT1_BD | BLDCNT_EFFECT_LIGHTEN); + SetGpuReg(REG_OFFSET_BLDY, 16); + break; + case 2: + task->data[3] -= task->data[1]; + task->data[4] += task->data[1]; + if (task->data[3] <= 0 || task->data[4] >= DISPLAY_WIDTH) + { + task->data[3] = 0; + task->data[4] = DISPLAY_WIDTH; + SetGpuReg(REG_OFFSET_BLDY, 0); + SetGpuReg(REG_OFFSET_BLDCNT, task->data[7]); + BlendPalettes(0xFFFFFFFF, 0, RGB_BLACK); + gPlttBufferFaded[0] = 0; + } + SetGpuReg(REG_OFFSET_WIN0H, WIN_RANGE(task->data[3], task->data[4])); + if (task->data[3]) + return; + break; + case 3: + task->data[5] -= task->data[2]; + task->data[6] += task->data[2]; + if (task->data[5] <= 0 || task->data[6] >= DISPLAY_HEIGHT) + { + task->data[5] = 0; + task->data[6] = DISPLAY_HEIGHT; + ClearGpuRegBits(REG_OFFSET_DISPCNT, DISPCNT_WIN0_ON); + } + SetGpuReg(REG_OFFSET_WIN0V, WIN_RANGE(task->data[5], task->data[6])); + if (task->data[5]) + return; + break; + default: + SetGpuReg(REG_OFFSET_BLDCNT, task->data[7]); + DestroyTask(taskId); + return; + } + ++task->data[0]; +} + +static void sub_80A0C78(u8 taskId) +{ + struct Task *task = &gTasks[taskId]; + + switch (task->data[0]) + { + case 0: + gPlttBufferFaded[0] = 0; + break; + case 1: + task->data[3] = 0; + task->data[4] = DISPLAY_WIDTH; + task->data[5] = 0; + task->data[6] = DISPLAY_HEIGHT; + SetGpuRegBits(REG_OFFSET_DISPCNT, DISPCNT_WIN0_ON); + SetGpuReg(REG_OFFSET_WIN0H, WIN_RANGE(task->data[3], task->data[4])); + SetGpuReg(REG_OFFSET_WIN0V, WIN_RANGE(task->data[5], task->data[6])); + SetGpuReg(REG_OFFSET_WININ, WININ_WIN0_BG_ALL | WININ_WIN0_OBJ | WININ_WIN0_CLR); + SetGpuReg(REG_OFFSET_WINOUT, 0); + break; + case 2: + task->data[5] += task->data[2]; + task->data[6] -= task->data[2]; + if (task->data[5] >= 80 || task->data[6] <= 81) + { + task->data[5] = 80; + task->data[6] = 81; + SetGpuReg(REG_OFFSET_BLDCNT, BLDCNT_TGT1_BG0 | BLDCNT_TGT1_BG1 | BLDCNT_TGT1_BG2 | BLDCNT_TGT1_BG3 | BLDCNT_TGT1_OBJ | BLDCNT_TGT1_BD | BLDCNT_EFFECT_LIGHTEN); + SetGpuReg(REG_OFFSET_BLDY, 16); + } + SetGpuReg(REG_OFFSET_WIN0V, WIN_RANGE(task->data[5], task->data[6])); + if (task->data[5] != 80) + return; + break; + case 3: + task->data[3] += task->data[1]; + task->data[4] -= task->data[1]; + if (task->data[3] >= 120 || task->data[4] <= 120) + { + task->data[3] = 120; + task->data[4] = 120; + BlendPalettes(0xFFFFFFFF, 0x10, RGB_BLACK); + gPlttBufferFaded[0] = 0; + } + SetGpuReg(REG_OFFSET_WIN0H, WIN_RANGE(task->data[3], task->data[4])); + if (task->data[3] != 120) + return; + break; + default: + ClearGpuRegBits(REG_OFFSET_DISPCNT, DISPCNT_WIN0_ON); + SetGpuReg(REG_OFFSET_BLDY, 0); + SetGpuReg(REG_OFFSET_BLDCNT, 0); + DestroyTask(taskId); + return; + } + ++task->data[0]; +} |