mirror of https://github.com/nmlgc/ReC98.git
[Decompilation] [th01] Non-entity boss animations: Byte-aligned blitting
And that's all we have for this class. Again, ever so slightly not identical to the same CBossEntity function. Part of P0120, funded by Yanga.
This commit is contained in:
nmlgc
parent
719668d51e
commit
8d39276732
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@ -637,4 +637,43 @@ int CBossAnim::load(const char fn[PF_FN_LEN], int slot)
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arc_file_free();
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return 0;
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}
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void CBossAnim::put_8(void) const
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{
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vram_offset_t vram_offset_row = vram_offset_divmul(left, top);
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vram_offset_t vram_offset;
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size_t bos_p = 0;
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pixel_t bos_y;
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vram_word_amount_t bos_word_x;
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vram_y_t intended_y;
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bos_image_t &bos = bos_anim_images[bos_slot].image[bos_image];
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if(bos_image >= bos_image_count) {
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return;
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}
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for(bos_y = 0; h > bos_y; bos_y++) {
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vram_offset_t vram_offset = vram_offset_row;
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intended_y = vram_intended_y_for(vram_offset_row, left);
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for(bos_word_x = 0; (vram_w / 2) > bos_word_x; bos_word_x++) {
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if((vram_offset / ROW_SIZE) == intended_y) {
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if(bos.alpha[bos_p]) {
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grcg_setcolor_rmw(0);
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VRAM_PUT(B, vram_offset, bos.alpha[bos_p], 16);
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grcg_off();
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}
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vram_or_emptyopt(B, vram_offset, bos.planes.B[bos_p], 16);
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vram_or_emptyopt(R, vram_offset, bos.planes.R[bos_p], 16);
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vram_or_emptyopt(G, vram_offset, bos.planes.G[bos_p], 16);
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vram_or_emptyopt(E, vram_offset, bos.planes.E[bos_p], 16);
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}
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vram_offset += 2;
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bos_p++;
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}
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vram_offset_row += ROW_SIZE;
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if(vram_offset_row >= PLANE_SIZE) { // Clip at the bottom edge
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break;
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}
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}
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}
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/// ---------------------
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@ -216,6 +216,10 @@ public:
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// keeps the .BOS metadata in this CBossEntity instance. Always returns 0.
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// Identical to CBossEntity::load() with an added alpha negation loop.
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int load(const char fn[PF_FN_LEN], int slot);
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// Blits [bos_image] to (⌊left/8⌋*8, top).
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// Additionally clips at the bottom edge of VRAM.
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void put_8(void) const;
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};
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// Frees all images in the given [slot].
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225
th01_reiiden.asm
225
th01_reiiden.asm
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@ -8886,6 +8886,7 @@ main_21_TEXT segment byte public 'CODE' use16
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extern @CBossEntity@hittest_orb$xqv:proc
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extern _bos_entity_free:proc
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extern @CBossAnim@load$qxnxci:proc
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extern @CBossAnim@put_8$xqv:proc
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main_21_TEXT ends
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main_21__TEXT segment byte public 'CODE' use16
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@ -8893,206 +8894,6 @@ main_21__TEXT segment byte public 'CODE' use16
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;org 4
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assume es:nothing, ss:nothing, ds:_DATA, fs:nothing, gs:nothing
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; =============== S U B R O U T I N E =======================================
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; Attributes: bp-based frame
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sub_16D6A proc far
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@@bos = dword ptr -0Ch
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var_8 = word ptr -8
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var_6 = word ptr -6
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var_4 = word ptr -4
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var_2 = word ptr -2
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arg_0 = dword ptr 6
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enter 0Ch, 0
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push si
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push di
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les bx, [bp+arg_0]
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mov ax, es:[bx]
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mov bx, 8
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cwd
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idiv bx
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mov bx, word ptr [bp+arg_0]
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mov dx, es:[bx+2]
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imul dx, 50h
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add ax, dx
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mov [bp+var_2], ax
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xor si, si
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mov al, es:[bx+0Ah]
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mov ah, 0
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imul ax, size bos_t
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mov dl, es:[bx+9]
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mov dh, 0
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imul dx, size bos_image_t
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add ax, dx
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add ax, offset _bos_anim_images
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mov word ptr [bp+@@bos+2], ds
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mov word ptr [bp+@@bos], ax
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mov al, es:[bx+9]
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cmp al, es:[bx+8]
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jnb loc_16F17
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mov [bp+var_4], 0
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jmp loc_16F09
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; ---------------------------------------------------------------------------
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loc_16DBF:
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mov di, [bp+var_2]
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les bx, [bp+arg_0]
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cmp word ptr es:[bx], 0
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jge short loc_16DD7
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mov ax, [bp+var_2]
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mov bx, 80
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cwd
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idiv bx
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inc ax
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jmp short loc_16DE0
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; ---------------------------------------------------------------------------
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loc_16DD7:
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mov ax, [bp+var_2]
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mov bx, 80
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cwd
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idiv bx
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loc_16DE0:
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mov [bp+var_8], ax
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mov [bp+var_6], 0
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jmp loc_16EE8
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; ---------------------------------------------------------------------------
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loc_16DEB:
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mov ax, di
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mov bx, 80
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cwd
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idiv bx
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cmp ax, [bp+var_8]
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jnz loc_16EE1
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les bx, [bp+@@bos]
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les bx, es:[bx+bos_image_t.BOS_alpha]
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mov ax, si
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add ax, ax
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add bx, ax
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cmp word ptr es:[bx], 0
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jz short loc_16E33
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call _grcg_setcolor_rmw stdcall, 0
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pop cx
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les bx, [bp+@@bos]
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les bx, es:[bx+bos_image_t.BOS_alpha]
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mov ax, si
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add ax, ax
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add bx, ax
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mov ax, es:[bx]
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les bx, _VRAM_PLANE_B
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add bx, di
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mov es:[bx], ax
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call _grcg_off_func
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loc_16E33:
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les bx, [bp+@@bos]
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les bx, es:[bx+bos_image_t.BOS_B]
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mov ax, si
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add ax, ax
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add bx, ax
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cmp word ptr es:[bx], 0
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jz short loc_16E5D
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les bx, [bp+@@bos]
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les bx, es:[bx+bos_image_t.BOS_B]
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mov ax, si
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add ax, ax
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add bx, ax
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mov ax, es:[bx]
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les bx, _VRAM_PLANE_B
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add bx, di
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or es:[bx], ax
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loc_16E5D:
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les bx, [bp+@@bos]
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les bx, es:[bx+bos_image_t.BOS_R]
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mov ax, si
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add ax, ax
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add bx, ax
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cmp word ptr es:[bx], 0
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jz short loc_16E89
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les bx, [bp+@@bos]
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les bx, es:[bx+bos_image_t.BOS_R]
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mov ax, si
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add ax, ax
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add bx, ax
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mov ax, es:[bx]
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les bx, _VRAM_PLANE_R
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add bx, di
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or es:[bx], ax
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loc_16E89:
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les bx, [bp+@@bos]
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les bx, es:[bx+bos_image_t.BOS_G]
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mov ax, si
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add ax, ax
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add bx, ax
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cmp word ptr es:[bx], 0
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jz short loc_16EB5
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les bx, [bp+@@bos]
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les bx, es:[bx+bos_image_t.BOS_G]
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mov ax, si
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add ax, ax
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add bx, ax
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mov ax, es:[bx]
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les bx, _VRAM_PLANE_G
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add bx, di
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or es:[bx], ax
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loc_16EB5:
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les bx, [bp+@@bos]
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les bx, es:[bx+bos_image_t.BOS_E]
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mov ax, si
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add ax, ax
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add bx, ax
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cmp word ptr es:[bx], 0
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jz short loc_16EE1
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les bx, [bp+@@bos]
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les bx, es:[bx+bos_image_t.BOS_E]
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mov ax, si
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add ax, ax
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add bx, ax
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mov ax, es:[bx]
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les bx, _VRAM_PLANE_E
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add bx, di
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or es:[bx], ax
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loc_16EE1:
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add di, 2
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inc si
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inc [bp+var_6]
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loc_16EE8:
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les bx, [bp+arg_0]
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mov ax, es:[bx+4]
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cwd
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sub ax, dx
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sar ax, 1
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cmp ax, [bp+var_6]
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jg loc_16DEB
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add [bp+var_2], 50h ; 'P'
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cmp [bp+var_2], 7D00h
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jge short loc_16F17
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inc [bp+var_4]
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loc_16F09:
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les bx, [bp+arg_0]
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mov ax, es:[bx+6]
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cmp ax, [bp+var_4]
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jg loc_16DBF
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loc_16F17:
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pop di
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pop si
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leave
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retf
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sub_16D6A endp
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; =============== S U B R O U T I N E =======================================
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; Attributes: bp-based frame
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@ -37004,14 +36805,10 @@ loc_28F32:
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mov sariel_wand.BA_bos_image, 0
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push 1
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call _graph_accesspage_func
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push ds
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push offset sariel_wand
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call sub_16D6A
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call @CBossAnim@put_8$xqv stdcall, offset sariel_wand, ds
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push 0
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call _graph_accesspage_func
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push ds
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push offset sariel_wand
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call sub_16D6A
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call @CBossAnim@put_8$xqv stdcall, offset sariel_wand, ds
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add sp, 0Ch
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jmp short loc_28FA3
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; ---------------------------------------------------------------------------
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@ -37022,14 +36819,10 @@ loc_28F67:
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mov sariel_wand.BA_bos_image, 1
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push 1
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call _graph_accesspage_func
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push ds
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push offset sariel_wand
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call sub_16D6A
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call @CBossAnim@put_8$xqv stdcall, offset sariel_wand, ds
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push 0
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call _graph_accesspage_func
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push ds
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push offset sariel_wand
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call sub_16D6A
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call @CBossAnim@put_8$xqv stdcall, offset sariel_wand, ds
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add sp, 0Ch
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mov word_35DDD, 0
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mov ax, 1
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@ -37088,14 +36881,10 @@ sub_28FC5 proc near
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mov sariel_dress.BA_bos_image, al
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push 1
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call _graph_accesspage_func
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push ds
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push offset sariel_dress
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call sub_16D6A
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call @CBossAnim@put_8$xqv stdcall, offset sariel_dress, ds
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push 0
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call _graph_accesspage_func
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push ds
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push offset sariel_dress
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call sub_16D6A
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call @CBossAnim@put_8$xqv stdcall, offset sariel_dress, ds
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add sp, 0Ch
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locret_29013:
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