53 lines
1.1 KiB
NASM
53 lines
1.1 KiB
NASM
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align 4
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proc glopClearColor uses ecx esi edi, context:dword, p:dword
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mov esi,[p]
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add esi,4
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mov edi,[context]
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add edi,GLContext.clear_color
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mov ecx,4
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rep movsd
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ret
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endp
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align 4
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proc glopClearDepth uses eax ebx, context:dword, p:dword
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mov eax,[context]
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mov ebx,[p]
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mov ebx,[ebx+4] ;ebx = p[1]
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mov dword[eax+GLContext.clear_depth],ebx
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ret
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endp
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align 4
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fl_65535 dd 65535.0
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align 4
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proc glopClear uses eax ebx, context:dword, p:dword
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mov eax,[context]
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fld dword[eax+GLContext.clear_color+8] ;context.clear_color.v[2]
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fmul dword[fl_65535]
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fistp dword[esp-4]
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fld dword[eax+GLContext.clear_color+4] ;context.clear_color.v[1]
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fmul dword[fl_65535]
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fistp dword[esp-8]
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fld dword[eax+GLContext.clear_color] ;context.clear_color.v[0]
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fmul dword[fl_65535]
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fistp dword[esp-12]
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sub esp,12
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mov ebx,[p]
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mov ebx,[ebx+4] ;ebx = p[1]
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and ebx,GL_COLOR_BUFFER_BIT
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push ebx
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mov ebx,[p]
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mov ebx,[ebx+4] ;ebx = p[1]
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and ebx,GL_DEPTH_BUFFER_BIT
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; TODO : correct value of Z
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stdcall ZB_clear,[eax+GLContext.zb],ebx,0 ;,...,r,g,b
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ret
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endp
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