| 50,6 → 50,7 |
|---|
| mov edx,[ecx+offs_zbup_y] |
| imul edx,[sx] |
| add edx,[ecx+offs_zbup_x] |
| shl edx,1 |
| add edx,[eax+offs_zbuf_zbuf] |
| mov [pz],edx ;pz = zb.zbuf + (p1.y*sx + p1.x) |
| mov edx,[ecx+offs_zbup_z] |
| 98,19 → 99,25 |
|---|
| mov eax,[z] |
| shr eax, ZB_POINT_Z_FRAC_BITS |
| mov [zz],eax |
| cmp eax,[pz] |
| mov ebx,[pz] |
| cmp ax,word[ebx] |
| jl .end_0 |
| RGBPIXEL |
| mov eax,dword[zz] |
| mov [pz],eax |
| mov ebx,[pz] |
| mov word[ebx],ax |
| .end_0: |
| else ; INTERP_Z |
| else |
| RGBPIXEL |
| end if ; INTERP_Z |
| end if |
| } |
| |
| macro DRAWLINE d_x,d_y,inc_1,inc_2 |
| { |
| local .mz_0 |
| local .mz_1 |
| local .mz_2 |
| |
| mov eax,d_x |
| mov [n],eax |
| if INTERP_Z eq 1 |
| 117,9 → 124,26 |
|---|
| mov ebx,[p1] |
| mov eax,[p2] |
| mov eax,[eax+offs_zbup_z] |
| cmp eax,[ebx+offs_zbup_z] |
| jg .mz_0 |
| je .mz_1 |
| ;if(p2.z<p1.z) |
| sub eax,[ebx+offs_zbup_z] |
| neg eax |
| inc eax |
| xor edx,edx |
| div dword[n] |
| neg eax |
| inc eax |
| jmp .mz_2 |
| .mz_0: |
| sub eax,[ebx+offs_zbup_z] |
| xor edx,edx |
| div dword[n] |
| jmp .mz_2 |
| .mz_1: |
| xor eax,eax |
| .mz_2: |
| mov [zinc],eax ;zinc=(p2.z-p1.z)/n |
| end if |
| shl dword d_y,1 |
| 154,6 → 178,7 |
|---|
| add edi,[pp_inc_1] |
| if INTERP_Z eq 1 |
| mov eax,inc_1 |
| shl eax,1 |
| add [pz],eax |
| end if |
| mov eax,d_x |
| 164,6 → 189,7 |
|---|
| add edi,[pp_inc_2] |
| if INTERP_Z eq 1 |
| mov eax,inc_2 |
| shl eax,1 |
| add [pz],eax |
| end if |
| mov eax,d_y |