242 lines
5.0 KiB
NASM
242 lines
5.0 KiB
NASM
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align 4
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proc glopViewport uses eax ebx ecx edx, context:dword, p:dword
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locals
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xsize dd ? ;int
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ysize dd ? ;int
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xmin dd ? ;int
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ymin dd ? ;int
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xsize_req dd ? ;int
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ysize_req dd ? ;int
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endl
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mov edx,[context]
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mov ebx,[p]
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mov ecx,[ebx+4]
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mov [xmin],ecx
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mov ecx,[ebx+8]
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mov [ymin],ecx
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mov ecx,[ebx+12]
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mov [xsize],ecx
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mov ecx,[ebx+16]
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mov [ysize],ecx
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; we may need to resize the zbuffer
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cmp dword[edx+GLContext.viewport+offs_vpor_ysize],ecx
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jne @f
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mov ecx,[xmin]
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cmp dword[edx+GLContext.viewport+offs_vpor_xmin],ecx
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jne @f
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mov ecx,[ymin]
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cmp dword[edx+GLContext.viewport+offs_vpor_ymin],ecx
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jne @f
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mov ecx,[xsize]
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cmp dword[edx+GLContext.viewport+offs_vpor_xsize],ecx
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jne @f
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jmp .end_f
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@@:
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mov ecx,[xmin]
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add ecx,[xsize]
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mov [xsize_req],ecx ;xsize_req = xmin + xsize
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mov ecx,[ymin]
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add ecx,[ysize]
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mov [ysize_req],ecx ;ysize_req = ymin + ysize
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cmp dword[edx+GLContext.gl_resize_viewport],0
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je @f
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mov eax,ebp
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sub eax,4
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push eax
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sub eax,4
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push eax
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stdcall dword[edx+GLContext.gl_resize_viewport], edx ;gl_resize_viewport(context,&xsize_req,&ysize_req)
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cmp eax,0
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je @f
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stdcall dbg_print,sz_glViewport,err_4
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@@:
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mov ecx,[xsize_req]
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sub ecx,[xmin]
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mov [xsize],ecx
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mov ecx,[ysize_req]
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sub ecx,[ymin]
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mov [ysize],ecx
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cmp ecx,0
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jg @f
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cmp dword[xsize],0
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jg @f
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stdcall dbg_print,sz_glViewport,err_5
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@@:
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mov ecx,[xmin]
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mov dword[edx+GLContext.viewport+offs_vpor_xmin],ecx
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mov ecx,[ymin]
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mov dword[edx+GLContext.viewport+offs_vpor_ymin],ecx
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mov ecx,[xsize]
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mov dword[edx+GLContext.viewport+offs_vpor_xsize],ecx
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mov ecx,[ysize]
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mov dword[edx+GLContext.viewport+offs_vpor_ysize],ecx
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mov dword[edx+GLContext.viewport+offs_vpor_updated],1
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.end_f:
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ret
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endp
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align 4
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proc glopEnableDisable uses eax ebx ecx, context:dword, p:dword
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mov eax,[context]
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mov ebx,[p]
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mov ecx,[ebx+8]
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mov ebx,[ebx+4]
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cmp ebx,GL_CULL_FACE
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jne @f
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mov [eax+GLContext.cull_face_enabled],ecx
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jmp .end_f
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@@:
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cmp ebx,GL_LIGHTING
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jne @f
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mov [eax+GLContext.lighting_enabled],ecx
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jmp .end_f
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@@:
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cmp ebx,GL_COLOR_MATERIAL
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jne @f
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mov [eax+GLContext.color_material_enabled],ecx
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jmp .end_f
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@@:
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cmp ebx,GL_TEXTURE_2D
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jne @f
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mov [eax+GLContext.texture_2d_enabled],ecx
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jmp .end_f
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@@:
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cmp ebx,GL_NORMALIZE
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jne @f
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mov [eax+GLContext.normalize_enabled],ecx
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jmp .end_f
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@@:
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cmp ebx,GL_DEPTH_TEST
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jne @f
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mov [eax+GLContext.depth_test],ecx
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jmp .end_f
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@@:
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cmp ebx,GL_POLYGON_OFFSET_FILL
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jne .polygon_offset_fill
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cmp ecx,0
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je @f
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or dword[eax+GLContext.offset_states],TGL_OFFSET_FILL
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jmp .end_f
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@@:
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and dword[eax+GLContext.offset_states],not TGL_OFFSET_FILL
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jmp .end_f
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.polygon_offset_fill:
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cmp ebx,GL_POLYGON_OFFSET_POINT
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jne .polygon_offset_point
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cmp ecx,0
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je @f
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or dword[eax+GLContext.offset_states],TGL_OFFSET_POINT
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jmp .end_f
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@@:
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and dword[eax+GLContext.offset_states],not TGL_OFFSET_POINT
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jmp .end_f
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.polygon_offset_point:
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cmp ebx,GL_POLYGON_OFFSET_LINE
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jne .polygon_offset_line
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cmp ecx,0
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je @f
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or dword[eax+GLContext.offset_states],TGL_OFFSET_LINE
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jmp .end_f
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@@:
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and dword[eax+GLContext.offset_states],not TGL_OFFSET_LINE
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jmp .end_f
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.polygon_offset_line: ;default:
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cmp ebx,GL_LIGHT0
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jl .els_0
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cmp ebx,GL_LIGHT0+MAX_LIGHTS
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jge .els_0 ;if (GL_LIGHT0 <= ebx < GL_LIGHT0+MAX_LIGHTS)
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sub ebx,GL_LIGHT0
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stdcall gl_enable_disable_light, eax,ebx,ecx
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jmp .end_f
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.els_0:
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;fprintf(stderr,"glEnableDisable: 0x%X not supported.\n",code);
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.end_f:
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ret
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endp
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align 4
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proc glopShadeModel 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]
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mov [eax+GLContext.current_shade_model],ebx
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ret
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endp
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align 4
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proc glopCullFace 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]
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mov [eax+GLContext.current_cull_face],ebx
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ret
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endp
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align 4
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proc glopFrontFace 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]
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mov [eax+GLContext.current_front_face],ebx
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ret
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endp
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align 4
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proc glopPolygonMode 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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cmp dword[ebx+4],GL_BACK
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jne @f
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mov ebx,[ebx+8]
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mov [eax+GLContext.polygon_mode_back],ebx
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jmp .end_f
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@@:
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cmp dword[ebx+4],GL_FRONT
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jne @f
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mov ebx,[ebx+8]
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mov [eax+GLContext.polygon_mode_front],ebx
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jmp .end_f
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@@:
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cmp dword[ebx+4],GL_FRONT_AND_BACK
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jne @f
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mov ebx,[ebx+8]
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mov [eax+GLContext.polygon_mode_front],ebx
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mov [eax+GLContext.polygon_mode_back],ebx
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jmp .end_f
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@@:
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; assert(0);
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.end_f:
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ret
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endp
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align 4
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proc glopHint, context:dword,p:dword
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if 0
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; int target=p[1].i;
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; int mode=p[2].i;
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; do nothing
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end if
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ret
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endp
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align 4
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proc glopPolygonOffset uses eax ebx ecx, context:dword,p:dword
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mov eax,[context]
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mov ebx,[p]
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mov ecx,[ebx+4]
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mov [eax+GLContext.offset_factor],ecx
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mov ecx,[ebx+8]
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mov [eax+GLContext.offset_units],ecx
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ret
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endp |