pokedex_screen through sub_810250C

4 files changed, 122 insertions, 284 deletions

diff --git a/asm/pokedex_screen.s b/asm/pokedex_screen.s
index 9c57cff88..ad2b96cdf 100644
--- a/asm/pokedex_screen.s
+++ b/asm/pokedex_screen.s
@@ -5,290 +5,6 @@
 
 	.text
 
-	thumb_func_start sub_81024C0
-sub_81024C0: @ 81024C0
-	push {lr}
-	bl LoadOam
-	bl ProcessSpriteCopyRequests
-	bl TransferPlttBuffer
-	pop {r0}
-	bx r0
-	thumb_func_end sub_81024C0
-
-	thumb_func_start sub_81024D4
-sub_81024D4: @ 81024D4
-	push {lr}
-	ldr r0, _08102500 @ =gPaletteFade
-	ldrb r1, [r0, 0x7]
-	movs r0, 0x80
-	ands r0, r1
-	cmp r0, 0
-	beq _081024EC
-	bl IsDma3ManagerBusyWithBgCopy
-	lsls r0, 24
-	cmp r0, 0
-	beq _08102504
-_081024EC:
-	bl RunTasks
-	bl RunTextPrinters
-	bl AnimateSprites
-	bl BuildOamBuffer
-	b _08102508
-	.align 2, 0
-_08102500: .4byte gPaletteFade
-_08102504:
-	bl UpdatePaletteFade
-_08102508:
-	pop {r0}
-	bx r0
-	thumb_func_end sub_81024D4
-
-	thumb_func_start sub_810250C
-sub_810250C: @ 810250C
-	push {r4-r6,lr}
-	mov r6, r8
-	push {r6}
-	sub sp, 0xC
-	bl IsNationalPokedexEnabled
-	lsls r0, 24
-	lsrs r6, r0, 24
-	bl m4aSoundVSyncOff
-	movs r0, 0
-	bl SetVBlankCallback
-	bl ResetPaletteFade
-	bl ResetSpriteData
-	bl ResetTasks
-	bl ScanlineEffect_Stop
-	movs r0, 0x1
-	bl ResetBgsAndClearDma3BusyFlags
-	ldr r1, _08102598 @ =gUnknown_8451EBC
-	movs r0, 0
-	movs r2, 0x4
-	bl InitBgsFromTemplates
-	movs r4, 0x80
-	lsls r4, 4
-	adds r0, r4, 0
-	bl Alloc
-	adds r1, r0, 0
-	movs r0, 0x3
-	bl SetBgTilemapBuffer
-	adds r0, r4, 0
-	bl Alloc
-	adds r1, r0, 0
-	movs r0, 0x2
-	bl SetBgTilemapBuffer
-	adds r0, r4, 0
-	bl Alloc
-	adds r1, r0, 0
-	movs r0, 0x1
-	bl SetBgTilemapBuffer
-	adds r0, r4, 0
-	bl Alloc
-	adds r1, r0, 0
-	movs r0, 0
-	bl SetBgTilemapBuffer
-	cmp r6, 0
-	beq _081025A0
-	ldr r1, _0810259C @ =gUnknown_84403AC
-	movs r0, 0
-	str r0, [sp]
-	movs r0, 0x3
-	adds r2, r4, 0
-	movs r3, 0
-	bl DecompressAndLoadBgGfxUsingHeap
-	b _081025AE
-	.align 2, 0
-_08102598: .4byte gUnknown_8451EBC
-_0810259C: .4byte gUnknown_84403AC
-_081025A0:
-	ldr r1, _081026A4 @ =gUnknown_8440274
-	str r6, [sp]
-	movs r0, 0x3
-	adds r2, r4, 0
-	movs r3, 0
-	bl DecompressAndLoadBgGfxUsingHeap
-_081025AE:
-	ldr r0, _081026A8 @ =gUnknown_8451ECC
-	bl InitWindows
-	bl DeactivateAllTextPrinters
-	bl m4aSoundVSyncOn
-	ldr r0, _081026AC @ =sub_81024C0
-	bl SetVBlankCallback
-	movs r0, 0x1
-	bl EnableInterrupts
-	ldr r0, _081026B0 @ =sub_810287C
-	movs r1, 0
-	bl CreateTask
-	adds r4, r0, 0
-	lsls r4, 24
-	lsrs r4, 24
-	ldr r5, _081026B4 @ =gUnknown_203ACF0
-	movs r0, 0x70
-	bl Alloc
-	str r0, [r5]
-	ldr r1, _081026B8 @ =gUnknown_8451EE4
-	movs r2, 0x70
-	bl memcpy
-	ldr r0, [r5]
-	strb r4, [r0]
-	movs r0, 0xC1
-	lsls r0, 4
-	bl Alloc
-	ldr r1, [r5]
-	str r0, [r1, 0x44]
-	movs r0, 0
-	movs r1, 0x1
-	bl sub_8104BBC
-	ldr r1, [r5]
-	adds r1, 0x6A
-	strh r0, [r1]
-	movs r0, 0x1
-	movs r1, 0x1
-	bl sub_8104BBC
-	ldr r1, [r5]
-	adds r1, 0x6C
-	strh r0, [r1]
-	movs r0, 0
-	movs r1, 0
-	bl sub_8104BBC
-	ldr r1, [r5]
-	adds r1, 0x66
-	strh r0, [r1]
-	movs r0, 0x1
-	movs r1, 0
-	bl sub_8104BBC
-	ldr r1, [r5]
-	adds r1, 0x68
-	strh r0, [r1]
-	movs r0, 0x80
-	bl sub_8072474
-	movs r0, 0
-	movs r1, 0
-	movs r2, 0
-	bl ChangeBgX
-	movs r0, 0
-	movs r1, 0
-	movs r2, 0
-	bl ChangeBgY
-	movs r0, 0x1
-	movs r1, 0
-	movs r2, 0
-	bl ChangeBgX
-	movs r0, 0x1
-	movs r1, 0
-	movs r2, 0
-	bl ChangeBgY
-	movs r0, 0x2
-	movs r1, 0
-	movs r2, 0
-	bl ChangeBgX
-	movs r0, 0x2
-	movs r1, 0
-	movs r2, 0
-	bl ChangeBgY
-	movs r0, 0x3
-	movs r1, 0
-	movs r2, 0
-	bl ChangeBgX
-	movs r0, 0x3
-	movs r1, 0
-	movs r2, 0
-	bl ChangeBgY
-	ldr r2, _081026BC @ =gPaletteFade
-	ldrb r0, [r2, 0x8]
-	movs r1, 0x80
-	orrs r0, r1
-	strb r0, [r2, 0x8]
-	cmp r6, 0
-	beq _081026C4
-	ldr r0, _081026C0 @ =gUnknown_84406E0
-	movs r2, 0x80
-	lsls r2, 2
-	movs r1, 0
-	bl LoadPalette
-	b _081026D0
-	.align 2, 0
-_081026A4: .4byte gUnknown_8440274
-_081026A8: .4byte gUnknown_8451ECC
-_081026AC: .4byte sub_81024C0
-_081026B0: .4byte sub_810287C
-_081026B4: .4byte gUnknown_203ACF0
-_081026B8: .4byte gUnknown_8451EE4
-_081026BC: .4byte gPaletteFade
-_081026C0: .4byte gUnknown_84406E0
-_081026C4:
-	ldr r0, _08102758 @ =gUnknown_84404C8
-	movs r2, 0x80
-	lsls r2, 2
-	movs r1, 0
-	bl LoadPalette
-_081026D0:
-	movs r4, 0x20
-	str r4, [sp]
-	str r4, [sp, 0x4]
-	movs r0, 0
-	str r0, [sp, 0x8]
-	movs r0, 0x3
-	movs r1, 0x1
-	movs r2, 0
-	movs r3, 0
-	bl FillBgTilemapBufferRect
-	str r4, [sp]
-	str r4, [sp, 0x4]
-	movs r5, 0x11
-	str r5, [sp, 0x8]
-	movs r0, 0x2
-	movs r1, 0
-	movs r2, 0
-	movs r3, 0
-	bl FillBgTilemapBufferRect
-	str r4, [sp]
-	str r4, [sp, 0x4]
-	str r5, [sp, 0x8]
-	movs r0, 0x1
-	movs r1, 0
-	movs r2, 0
-	movs r3, 0
-	bl FillBgTilemapBufferRect
-	str r4, [sp]
-	movs r0, 0x2
-	mov r8, r0
-	str r0, [sp, 0x4]
-	movs r6, 0xF
-	str r6, [sp, 0x8]
-	movs r0, 0
-	movs r1, 0x3
-	movs r2, 0
-	movs r3, 0
-	bl FillBgTilemapBufferRect
-	str r4, [sp]
-	movs r0, 0x10
-	str r0, [sp, 0x4]
-	str r5, [sp, 0x8]
-	movs r0, 0
-	movs r1, 0
-	movs r2, 0
-	movs r3, 0x2
-	bl FillBgTilemapBufferRect
-	str r4, [sp]
-	mov r0, r8
-	str r0, [sp, 0x4]
-	str r6, [sp, 0x8]
-	movs r0, 0
-	movs r1, 0x3
-	movs r2, 0
-	movs r3, 0x12
-	bl FillBgTilemapBufferRect
-	add sp, 0xC
-	pop {r3}
-	mov r8, r3
-	pop {r4-r6}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_08102758: .4byte gUnknown_84404C8
-	thumb_func_end sub_810250C
-
 	thumb_func_start CB2_OpenPokedexFromStartMenu
 CB2_OpenPokedexFromStartMenu: @ 810275C
 	push {lr}
diff --git a/include/sound.h b/include/sound.h
index e5736fad8..73ca1c654 100644
--- a/include/sound.h
+++ b/include/sound.h
@@ -46,5 +46,6 @@ void SE12PanpotControl(s8 pan);
 bool8 IsSEPlaying(void);
 bool8 IsBGMPlaying(void);
 bool8 IsSpecialSEPlaying(void);
+void sub_8072474(u16 volume);
 
 #endif // GUARD_SOUND_H
diff --git a/ld_script.txt b/ld_script.txt
index 0e7cbca77..e46625ad3 100644
--- a/ld_script.txt
+++ b/ld_script.txt
@@ -227,6 +227,7 @@ SECTIONS {
         src/map_preview_screen.o(.text);
         asm/link_rfu_2.o(.text);
         asm/link_rfu.o(.text);
+        src/pokedex_screen.o(.text);
         asm/pokedex_screen.o(.text);
         src/list_menu.o(.text);
         asm/item_menu.o(.text);
diff --git a/src/pokedex_screen.c b/src/pokedex_screen.c
new file mode 100644
index 000000000..1731f1cec
--- /dev/null
+++ b/src/pokedex_screen.c
@@ -0,0 +1,120 @@
+#include "global.h"
+#include "bg.h"
+#include "malloc.h"
+#include "palette.h"
+#include "graphics.h"
+#include "dma3.h"
+#include "gpu_regs.h"
+#include "m4a.h"
+#include "scanline_effect.h"
+#include "task.h"
+#include "text.h"
+#include "window.h"
+#include "new_menu_helpers.h"
+#include "sound.h"
+#include "event_data.h"
+
+struct PokedexScreenData
+{
+    u8 field_00;
+    u8 filler_01[0x43];
+    void * field_44;
+    u8 filler_48[0x1E];
+    u16 field_66;
+    u16 field_68;
+    u16 field_6A;
+    u16 field_6C;
+};
+
+EWRAM_DATA struct PokedexScreenData * gUnknown_203ACF0 = NULL;
+
+void sub_810287C(u8 taskId);
+u16 sub_8104BBC(u8 a0, u8 a1);
+
+extern const u32 gUnknown_8440274[];
+extern const u32 gUnknown_84403AC[];
+extern const u16 gUnknown_84404C8[];
+extern const u16 gUnknown_84406E0[];
+extern const struct BgTemplate gUnknown_8451EBC[4];
+extern const struct WindowTemplate gUnknown_8451ECC[];
+extern const struct PokedexScreenData gUnknown_8451EE4;
+
+void sub_81024C0(void)
+{
+    LoadOam();
+    ProcessSpriteCopyRequests();
+    TransferPlttBuffer();
+}
+
+void sub_81024D4(void)
+{
+    if (!gPaletteFade.active || IsDma3ManagerBusyWithBgCopy())
+    {
+        RunTasks();
+        RunTextPrinters();
+        AnimateSprites();
+        BuildOamBuffer();
+    }
+    else
+    {
+        UpdatePaletteFade();
+    }
+}
+
+void sub_810250C(void)
+{
+    bool8 natDex;
+    u8 taskId;
+
+    natDex = IsNationalPokedexEnabled();
+    m4aSoundVSyncOff();
+    SetVBlankCallback(NULL);
+    ResetPaletteFade();
+    ResetSpriteData();
+    ResetTasks();
+    ScanlineEffect_Stop();
+    ResetBgsAndClearDma3BusyFlags(TRUE);
+    InitBgsFromTemplates(0, gUnknown_8451EBC, NELEMS(gUnknown_8451EBC));
+    SetBgTilemapBuffer(3, Alloc(BG_SCREEN_SIZE));
+    SetBgTilemapBuffer(2, Alloc(BG_SCREEN_SIZE));
+    SetBgTilemapBuffer(1, Alloc(BG_SCREEN_SIZE));
+    SetBgTilemapBuffer(0, Alloc(BG_SCREEN_SIZE));
+    if (natDex)
+        DecompressAndLoadBgGfxUsingHeap(3, gUnknown_84403AC, BG_SCREEN_SIZE, 0, 0);
+    else
+        DecompressAndLoadBgGfxUsingHeap(3, gUnknown_8440274, BG_SCREEN_SIZE, 0, 0);
+    InitWindows(gUnknown_8451ECC);
+    DeactivateAllTextPrinters();
+    m4aSoundVSyncOn();
+    SetVBlankCallback(sub_81024C0);
+    EnableInterrupts(INTR_FLAG_VBLANK);
+    taskId = CreateTask(sub_810287C, 0);
+    gUnknown_203ACF0 = Alloc(sizeof(*gUnknown_203ACF0));
+    *gUnknown_203ACF0 = gUnknown_8451EE4;
+    gUnknown_203ACF0->field_00 = taskId;
+    gUnknown_203ACF0->field_44 = Alloc(0xC10);
+    gUnknown_203ACF0->field_6A = sub_8104BBC(0, 1);
+    gUnknown_203ACF0->field_6C = sub_8104BBC(1, 1);
+    gUnknown_203ACF0->field_66 = sub_8104BBC(0, 0);
+    gUnknown_203ACF0->field_68 = sub_8104BBC(1, 0);
+    sub_8072474(0x80);
+    ChangeBgX(0, 0, 0);
+    ChangeBgY(0, 0, 0);
+    ChangeBgX(1, 0, 0);
+    ChangeBgY(1, 0, 0);
+    ChangeBgX(2, 0, 0);
+    ChangeBgY(2, 0, 0);
+    ChangeBgX(3, 0, 0);
+    ChangeBgY(3, 0, 0);
+    gPaletteFade.bufferTransferDisabled = TRUE;
+    if (natDex)
+        LoadPalette(gUnknown_84406E0, 0, 0x200);
+    else
+        LoadPalette(gUnknown_84404C8, 0, 0x200);
+    FillBgTilemapBufferRect(3, 0x001, 0, 0, 32, 32, 0);
+    FillBgTilemapBufferRect(2, 0x000, 0, 0, 32, 32, 0x11);
+    FillBgTilemapBufferRect(1, 0x000, 0, 0, 32, 32, 0x11);
+    FillBgTilemapBufferRect(0, 0x0003, 0, 0, 32, 2, 0xF);
+    FillBgTilemapBufferRect(0, 0x0000, 0, 2, 32, 16, 0x11);
+    FillBgTilemapBufferRect(0, 0x003, 0, 18, 32, 2, 0xF);
+}