367 lines
7.9 KiB
NASM
367 lines
7.9 KiB
NASM
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USE32
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format MS COFF
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include 'proc32.inc'
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struc BITMAPINFOHEADER {
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.biSize dd ? ; DWORD
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.biWidth dd ? ; LONG
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.biHeight dd ? ; LONG
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.biPlanes dw ? ; WORD
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.biBitCount dw ? ; WORD
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.biCompression dd ? ; DWORD
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.biSizeImage dd ? ; DWORD
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.biXPelsPerMeter dd ? ; LONG
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.biYPelsPerMeter dd ? ; LONG
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.biClrUsed dd ? ; DWORD
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.biClrImportant dd ? ; DWORD
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}
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virtual at 0
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BI BITMAPINFOHEADER
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end virtual
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public ___create_cursor
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public ___destroy_cursor
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public _copy_cursor@8
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extrn _create_cursor :dword
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extrn _destroy_cursor :dword
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extrn _tmp_cursor :dword
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section 'AUTO' code readable executable align 16
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align 16
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___create_cursor:
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push ecx
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push ebx
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push eax
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call _create_cursor
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add esp, 12
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ret
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align 16
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___destroy_cursor:
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push eax
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call _destroy_cursor
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add esp, 4
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ret
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align 16
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proc _copy_cursor@8 stdcall, dst:dword, src:dword
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locals
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rBase dd ?
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pQuad dd ?
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pBits dd ?
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pAnd dd ?
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width dd ?
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height dd ?
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counter dd ?
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endl
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mov esi, [src]
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add esi,[esi+18]
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mov eax,esi
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cmp [esi+BI.biBitCount], 24
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je .img_24
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cmp [esi+BI.biBitCount], 8
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je .img_8
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cmp [esi+BI.biBitCount], 4
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je .img_4
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.img_2:
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add eax, [esi]
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mov [pQuad],eax
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add eax,8
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mov [pBits],eax
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add eax, 128
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mov [pAnd],eax
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mov eax,[esi+4]
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mov [width],eax
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mov ebx,[esi+8]
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shr ebx,1
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mov [height],ebx
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mov edi, _tmp_cursor
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add edi, 32*31*4
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mov [rBase],edi
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mov esi,[pQuad]
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.l21:
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mov ebx, [pBits]
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mov ebx, [ebx]
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bswap ebx
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mov eax, [pAnd]
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mov eax, [eax]
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bswap eax
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mov [counter], 32
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@@:
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xor edx, edx
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shl eax,1
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setc dl
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dec edx
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xor ecx, ecx
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shl ebx,1
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setc cl
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mov ecx, [esi+ecx*4]
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and ecx, edx
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and edx, 0xFF000000
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or edx, ecx
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mov [edi], edx
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add edi, 4
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dec [counter]
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jnz @B
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add [pBits], 4
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add [pAnd], 4
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mov edi,[rBase]
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sub edi,128
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mov [rBase],edi
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sub [height],1
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jnz .l21
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jmp .copy
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.img_4:
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add eax, [esi]
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mov [pQuad],eax
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add eax,64
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mov [pBits],eax
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add eax, 0x200
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mov [pAnd],eax
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mov eax,[esi+4]
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mov [width],eax
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mov ebx,[esi+8]
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shr ebx,1
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mov [height],ebx
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mov edi, _tmp_cursor
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add edi, 32*31*4
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mov [rBase],edi
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mov esi,[pQuad]
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mov ebx, [pBits]
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.l4:
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mov eax, [pAnd]
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mov eax, [eax]
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bswap eax
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mov [counter], 16
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@@:
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xor edx, edx
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shl eax,1
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setc dl
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dec edx
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movzx ecx, byte [ebx]
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and cl, 0xF0
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shr ecx, 2
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mov ecx, [esi+ecx]
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and ecx, edx
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and edx, 0xFF000000
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or edx, ecx
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mov [edi], edx
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xor edx, edx
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shl eax,1
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setc dl
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dec edx
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movzx ecx, byte [ebx]
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and cl, 0x0F
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mov ecx, [esi+ecx*4]
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and ecx, edx
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and edx, 0xFF000000
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or edx, ecx
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mov [edi+4], edx
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inc ebx
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add edi, 8
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dec [counter]
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jnz @B
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add [pAnd], 4
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mov edi,[rBase]
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sub edi,128
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mov [rBase],edi
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sub [height],1
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jnz .l4
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jmp .copy
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.img_8:
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add eax, [esi]
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mov [pQuad],eax
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add eax,1024
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mov [pBits],eax
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add eax, 1024
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mov [pAnd],eax
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mov eax,[esi+4]
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mov [width],eax
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mov ebx,[esi+8]
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shr ebx,1
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mov [height],ebx
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mov edi, _tmp_cursor
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add edi, 32*31*4
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mov [rBase],edi
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mov esi,[pQuad]
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mov ebx, [pBits]
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.l81:
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mov eax, [pAnd]
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mov eax, [eax]
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bswap eax
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mov [counter], 32
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@@:
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xor edx, edx
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shl eax,1
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setc dl
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dec edx
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movzx ecx, byte [ebx]
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mov ecx, [esi+ecx*4]
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and ecx, edx
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and edx, 0xFF000000
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or edx, ecx
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mov [edi], edx
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inc ebx
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add edi, 4
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dec [counter]
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jnz @B
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add [pAnd], 4
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mov edi,[rBase]
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sub edi,128
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mov [rBase],edi
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sub [height],1
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jnz .l81
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jmp .copy
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.img_24:
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add eax, [esi]
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mov [pQuad],eax
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add eax, 0xC00
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mov [pAnd],eax
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mov eax,[esi+BI.biWidth]
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mov [width],eax
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mov ebx,[esi+BI.biHeight]
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shr ebx,1
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mov [height],ebx
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mov edi, _tmp_cursor
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add edi, 32*31*4
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mov [rBase],edi
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mov esi,[pAnd]
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mov ebx, [pQuad]
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.row_24:
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mov eax, [esi]
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bswap eax
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mov [counter], 32
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@@:
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xor edx, edx
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shl eax,1
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setc dl
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dec edx
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mov ecx, [ebx]
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and ecx, 0x00FFFFFF
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and ecx, edx
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and edx, 0xFF000000
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or edx, ecx
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mov [edi], edx
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add ebx, 3
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add edi, 4
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dec [counter]
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jnz @B
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add esi, 4
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mov edi,[rBase]
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sub edi,128
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mov [rBase],edi
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sub [height],1
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jnz .row_24
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.copy:
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mov edi, [dst]
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mov ecx, 64*64
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xor eax,eax
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rep stosd
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mov esi, _tmp_cursor
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mov edi, [dst]
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mov ebx, 32
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cld
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@@:
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mov ecx, 32
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rep movsd
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add edi, 128
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dec ebx
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jnz @B
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ret
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endp
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macro rdr op1, op2
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{
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mov op1, [edi+op2]
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}
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macro wrr dest, src
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{
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mov dword [edi+dest], src
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}
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struc CURSOR
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{;common object header
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.magic dd ? ;'CURS'
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.destroy dd ? ;internal destructor
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.fd dd ? ;next object in list
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.bk dd ? ;prev object in list
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.pid dd ? ;owner id
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;cursor data
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.base dd ? ;allocated memory
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.hot_x dd ? ;hotspot coords
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.hot_y dd ?
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}
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virtual at 0
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CURSOR CURSOR
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end virtual
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;public _r500_SelectCursor@4
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align 4
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proc _r500_SelectCursor@4 stdcall,hcursor:dword
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mov ecx, [hcursor]
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mov edi, [_rhd]
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mov edx, [ecx+CURSOR.base]
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sub edx, [_rhd+3*4]
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add edx, [_rhd+5*4]
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mov [edi+0x6408], edx
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mov eax, [ecx+CURSOR.hot_x]
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shl eax, 16
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mov ax, word [ecx+CURSOR.hot_y]
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mov [edi+0x6418], eax
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ret
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endp
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;public _r500_SetCursor@12
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align 4
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proc _r500_SetCursor@12 stdcall, hcursor:dword, x:dword, y:dword
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pushfd
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cli
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mov edx, [_rhd]
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mov eax, [x]
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shl eax, 16
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mov ax, word [y]
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mov [edx+0x6414], eax
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or dword [edx+0x6400], 1
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popfd
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ret
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endp
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