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Decompile texAlignIndices

This commit is contained in:
Ryan Dwyer 2022-02-17 23:34:10 +10:00
parent d636d4db7d
commit cd1d146bad
2 changed files with 33 additions and 57 deletions
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88
src/game/texdecompress.c
View File

@ -180,7 +180,7 @@ s32 texInflateZlib(u8 *src, u8 *dst, s32 arg2, s32 forcenumimages, struct textur
#endif
}
imagebytesout = func0f16edac(scratch2, width, height, format, &dst[totalbytesout]);
imagebytesout = texAlignIndices(scratch2, width, height, format, &dst[totalbytesout]);
texSetBitstring(rzipGetSomething());
if (arg2 == 1) {
@ -273,61 +273,37 @@ s32 texInflateZlib(u8 *src, u8 *dst, s32 arg2, s32 forcenumimages, struct textur
return totalbytesout;
}
GLOBAL_ASM(
glabel func0f16edac
/* f16edac: 27bdffe0 */ addiu $sp,$sp,-32
/* f16edb0: afb1000c */ sw $s1,0xc($sp)
/* f16edb4: afb00008 */ sw $s0,0x8($sp)
/* f16edb8: 24010009 */ addiu $at,$zero,0x9
/* f16edbc: 00a08025 */ or $s0,$a1,$zero
/* f16edc0: 00808825 */ or $s1,$a0,$zero
/* f16edc4: 10e10003 */ beq $a3,$at,.L0f16edd4
/* f16edc8: 8fa30030 */ lw $v1,0x30($sp)
/* f16edcc: 2401000b */ addiu $at,$zero,0xb
/* f16edd0: 14e10003 */ bne $a3,$at,.L0f16ede0
.L0f16edd4:
/* f16edd4: 24020001 */ addiu $v0,$zero,0x1
/* f16edd8: 10000008 */ b .L0f16edfc
/* f16eddc: afa20010 */ sw $v0,0x10($sp)
.L0f16ede0:
/* f16ede0: 2401000a */ addiu $at,$zero,0xa
/* f16ede4: 10e10004 */ beq $a3,$at,.L0f16edf8
/* f16ede8: 24020002 */ addiu $v0,$zero,0x2
/* f16edec: 2401000c */ addiu $at,$zero,0xc
/* f16edf0: 54e10003 */ bnel $a3,$at,.L0f16ee00
/* f16edf4: 8fa20010 */ lw $v0,0x10($sp)
.L0f16edf8:
/* f16edf8: afa20010 */ sw $v0,0x10($sp)
.L0f16edfc:
/* f16edfc: 8fa20010 */ lw $v0,0x10($sp)
.L0f16ee00:
/* f16ee00: 18c0000f */ blez $a2,.L0f16ee40
/* f16ee04: 00002025 */ or $a0,$zero,$zero
/* f16ee08: 2407fff8 */ addiu $a3,$zero,-8
.L0f16ee0c:
/* f16ee0c: 1a000008 */ blez $s0,.L0f16ee30
/* f16ee10: 00002825 */ or $a1,$zero,$zero
.L0f16ee14:
/* f16ee14: 922e0000 */ lbu $t6,0x0($s1)
/* f16ee18: 00a22821 */ addu $a1,$a1,$v0
/* f16ee1c: 00b0082a */ slt $at,$a1,$s0
/* f16ee20: 24630001 */ addiu $v1,$v1,0x1
/* f16ee24: 26310001 */ addiu $s1,$s1,0x1
/* f16ee28: 1420fffa */ bnez $at,.L0f16ee14
/* f16ee2c: a06effff */ sb $t6,-0x1($v1)
.L0f16ee30:
/* f16ee30: 24840001 */ addiu $a0,$a0,0x1
/* f16ee34: 246f0007 */ addiu $t7,$v1,0x7
/* f16ee38: 1486fff4 */ bne $a0,$a2,.L0f16ee0c
/* f16ee3c: 01e71824 */ and $v1,$t7,$a3
.L0f16ee40:
/* f16ee40: 8fb80030 */ lw $t8,0x30($sp)
/* f16ee44: 8fb00008 */ lw $s0,0x8($sp)
/* f16ee48: 8fb1000c */ lw $s1,0xc($sp)
/* f16ee4c: 27bd0020 */ addiu $sp,$sp,0x20
/* f16ee50: 03e00008 */ jr $ra
/* f16ee54: 00781023 */ subu $v0,$v1,$t8
);
/**
* Copy a list of palette indices to the dst buffer, but ensure each row is
* aligned to an 8 byte boundary.
*
* Return the number of output bytes.
*/
s32 texAlignIndices(u8 *src, s32 width, s32 height, s32 format, u8 *dst)
{
u8 *outptr = dst;
s32 x;
s32 y;
s32 indicesperbyte;
if (format == TEXFORMAT_RGBA16_CI8 || format == TEXFORMAT_IA16_CI8) {
indicesperbyte = 1;
} else if (format == TEXFORMAT_RGBA16_CI4 || format == TEXFORMAT_0C) {
indicesperbyte = 2;
}
for (y = 0; y < height; y++) {
for (x = 0; x < width; x += indicesperbyte) {
*outptr = *src;
outptr++;
src++;
}
outptr = (u8 *)(((u32)outptr + 7) & ~7);
}
return outptr - dst;
}
GLOBAL_ASM(
glabel func0f16ee58

2
src/include/game/texdecompress.h
View File

@ -6,7 +6,7 @@
void func0f16e810(u32 arg0);
s32 texInflateZlib(u8 *src, u8 *dst, s32 arg2, s32 forcenumimages, struct texturething *arg4, s32 arg5);
s32 func0f16edac(u8 *arg0, s32 width, s32 height, s32 format, u8 *dst);
s32 texAlignIndices(u8 *arg0, s32 width, s32 height, s32 format, u8 *dst);
u32 func0f16ee58(void);
u32 func0f16eefc(void);
u32 func0f16efa0(void);