forked from KolibriOS/kolibrios
751 lines
18 KiB
NASM
751 lines
18 KiB
NASM
align 4
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sp128f dd 128.0
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align 4
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proc glopMaterial uses eax ebx ecx edi esi, context:dword, p:dword
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; edi -> GLMaterial *m
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mov eax,[context]
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mov ebx,[p]
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mov ecx,[ebx+4] ;ecx = p[1]
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cmp ecx,GL_FRONT_AND_BACK ;if (mode == GL_FRONT_AND_BACK)
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jne @f
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mov dword[ebx+4],GL_FRONT ;p[1].i=GL_FRONT
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mov edi,ebp
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add edi,12
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stdcall glopMaterial,eax,edi
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mov ecx,GL_BACK
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@@:
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mov edi,eax
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add edi,offs_cont_materials
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cmp ecx,GL_FRONT ;if (mode == GL_FRONT) m=&context.materials[0]
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je @f
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add edi,sizeof.GLMaterial ;else m=&context.materials[1]
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@@:
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mov ecx,4
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mov esi,ebx ;esi = &p
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add esi,12 ;esi = &p[3]
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mov ebx,[ebx+8] ;ebx = p[2]
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cmp ebx,GL_EMISSION
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jne @f
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;add edi,offs_mate_emission ;offs_mate_emission=0
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rep movsd
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jmp .end_f
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@@:
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cmp ebx,GL_AMBIENT
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jne @f
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add edi,offs_mate_ambient
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rep movsd
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jmp .end_f
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@@:
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cmp ebx,GL_DIFFUSE
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jne @f
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add edi,offs_mate_diffuse
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rep movsd
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jmp .end_f
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@@:
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cmp ebx,GL_SPECULAR
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jne @f
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add edi,offs_mate_specular
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rep movsd
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jmp .end_f
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@@:
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cmp ebx,GL_SHININESS
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jne @f
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fld dword[esi]
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add edi,offs_mate_shininess
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movsd
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mov dword[edi],SPECULAR_BUFFER_RESOLUTION
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fdiv dword[sp128f]
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fimul dword[edi]
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fistp dword[edi] ;m.shininess_i = (v[0]/128.0f)*SPECULAR_BUFFER_RESOLUTION
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jmp .end_f
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@@:
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cmp ebx,GL_AMBIENT_AND_DIFFUSE
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jne @f
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add edi,offs_mate_ambient
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rep movsd
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sub esi,16
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;edi = &offs_mate_diffuse
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mov ecx,4
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rep movsd
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jmp .end_f
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@@: ;default
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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 glopColorMaterial 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] ;ecx = p[1]
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mov dword[eax+offs_cont_current_color_material_mode],ecx
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mov ecx,[ebx+8] ;ecx = p[2]
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mov dword[eax+offs_cont_current_color_material_type],ecx
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ret
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endp
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align 4
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proc glopLight context:dword, p:dword
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locals
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pos V4
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endl
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pushad
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mov eax,[context]
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mov ebx,[p]
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mov edx,[ebx+4] ;edx = p[1]
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; assert(edx >= GL_LIGHT0 && edx < GL_LIGHT0+MAX_LIGHTS );
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sub edx,GL_LIGHT0
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imul edx,sizeof.GLLight
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add edx,eax
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add edx,offs_cont_lights
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mov ecx,[ebx+8] ;ecx = p[2]
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cmp ecx,GL_AMBIENT
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jne @f
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mov esi,ebx
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add esi,12
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mov edi,edx
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;add edi,offs_ligh_ambient ;offs_ligh_ambient = 0
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mov ecx,4
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rep movsd ;l.ambient=v
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jmp .end_f
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@@:
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cmp ecx,GL_DIFFUSE
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jne @f
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mov esi,ebx
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add esi,12
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mov edi,edx
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add edi,offs_ligh_diffuse
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mov ecx,4
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rep movsd ;l.diffuse=v
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jmp .end_f
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@@:
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cmp ecx,GL_SPECULAR
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jne @f
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mov esi,ebx
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add esi,12
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mov edi,edx
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add edi,offs_ligh_specular
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mov ecx,4
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rep movsd ;l.specular=v
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jmp .end_f
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@@:
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cmp ecx,GL_POSITION
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jne @f
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mov edi,ebx ;ebx = [ebp+12] = [p] = &p[0]
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add edi,12 ;&p[3]
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mov esi,ebp
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sub esi,16 ;&pos
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stdcall gl_M4_MulV4, esi,dword[eax+offs_cont_matrix_stack_ptr],edi
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mov edi,edx
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add edi,offs_ligh_position
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mov ecx,4
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rep movsd ;l.position=pos
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fld dword[edi-4] ;if(l.position.v[3] == 0)
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ftst
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fstsw ax
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sahf
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jne .end_i
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;mov esi,ebp
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sub esi,16 ;&pos
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mov edi,edx
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add edi,offs_ligh_norm_position
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mov ecx,3
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rep movsd ;l.norm_position=pos[1,2,3]
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;mov edi,edx
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;add edi,offs_ligh_norm_position
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sub edi,12
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stdcall gl_V3_Norm,edi ;&l.norm_position
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.end_i:
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ffree st0
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fincstp
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jmp .end_f
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@@:
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cmp ecx,GL_SPOT_DIRECTION
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jne @f
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mov esi,ebx ;&p[0]
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add esi,12
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mov edi,edx
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add edi,offs_ligh_spot_direction
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mov ecx,3
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rep movsd ;l.spot_direction=v[0,1,2]
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;mov esi,ebx
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;add esi,12
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sub esi,12
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;mov edi,edx
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;add edi,offs_ligh_norm_spot_direction
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add edi,offs_ligh_norm_spot_direction-(offs_ligh_spot_direction+12)
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mov ecx,3
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rep movsd ;l.norm_spot_direction=v[0,1,2]
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add edx,offs_ligh_norm_spot_direction
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stdcall gl_V3_Norm,edx
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jmp .end_f
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@@:
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cmp ecx,GL_SPOT_EXPONENT
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jne @f
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mov ecx,[ebx+12]
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mov [edi+offs_ligh_spot_exponent],ecx ;l.spot_exponent=p[3]
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jmp .end_f
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@@:
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cmp ecx,GL_SPOT_CUTOFF
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jne .end_spot_c
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fld dword[ebp+12] ;float a=v.v[0]
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; assert(a == 180 || (a>=0 && a<=90));
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fst dword[edi+offs_ligh_spot_cutoff] ;l.spot_cutoff=a
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fcom dword[an180f] ;if (a != 180)
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fstsw ax
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sahf
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je @f
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fldpi
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fmulp
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fdiv dword[an180f]
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fcos
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fstp dword[edi+offs_ligh_cos_spot_cutoff] ;l.cos_spot_cutoff=cos(a * M_PI / 180.0)
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jmp .end_f
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@@:
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ffree st0
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fincstp
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jmp .end_f
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.end_spot_c:
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cmp ecx,GL_CONSTANT_ATTENUATION
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jne @f
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mov ecx,[ebx+12]
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mov [edi+offs_ligh_attenuation],ecx ;l->attenuation[0]=p[3]
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jmp .end_f
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@@:
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cmp ecx,GL_LINEAR_ATTENUATION
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jne @f
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mov ecx,[ebx+12]
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mov [edi+offs_ligh_attenuation+4],ecx ;l->attenuation[1]=p[3]
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jmp .end_f
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@@:
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cmp ecx,GL_QUADRATIC_ATTENUATION
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jne @f
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mov ecx,[ebx+12]
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mov [edi+offs_ligh_attenuation+8],ecx ;l->attenuation[2]=p[3]
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jmp .end_f
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@@: ;default:
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; assert(0);
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.end_f:
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popad
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ret
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endp
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align 4
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proc glopLightModel uses ebx ecx esi edi, context:dword, p:dword
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mov edi,[context]
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mov ebx,[p]
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mov ebx,[ebx+4]
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mov esi,[ebp+12] ;&p[0]
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add esi,8 ;&p[2]
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cmp ebx,GL_LIGHT_MODEL_AMBIENT
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jne @f
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mov ecx,4
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add edi,offs_cont_ambient_light_model
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rep movsd ;for(i=0;i<4;i++) context.ambient_light_model.v[i]=v[i]
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jmp .end_f
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@@:
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cmp ebx,GL_LIGHT_MODEL_LOCAL_VIEWER
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jne @f
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fld dword[esi] ;st0 = p[2]
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fistp dword[edi+offs_cont_local_light_model]
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jmp .end_f
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@@:
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cmp ebx,GL_LIGHT_MODEL_TWO_SIDE
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jne @f
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fld dword[esi] ;st0 = p[2]
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fistp dword[edi+offs_cont_light_model_two_side]
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jmp .end_f
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@@: ;default:
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; tgl_warning("glopLightModel: illegal pname: 0x%x\n", ebx);
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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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macro clampf a, min, max
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{
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local .o_1
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local .o_2
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local .end_m
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fld dword a ;if (a<=0.0)
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ftst
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fstsw ax
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sahf
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ja .o_1
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ffree st0
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fincstp
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mov eax,0.0
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jmp .end_m ;return 0.0
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.o_1:
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fld1 ;else if (a>=1.0)
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fcompp
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fstsw ax
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sahf
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ja .o_2
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mov eax,1.0
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jmp .end_m ;return 1.0
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.o_2:
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mov eax,dword a ;else return a
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.end_m:
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}
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align 4
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proc gl_enable_disable_light uses eax ebx ecx, context:dword, light:dword, v:dword
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mov eax,[context]
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mov ebx,[light]
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imul ebx,sizeof.GLLight
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add ebx,eax
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add ebx,offs_cont_lights
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xor ecx,ecx
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cmp dword[ebx+offs_ligh_enabled],0
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jne @f
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not ecx
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@@:
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and ecx,[v]
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or ecx,ecx
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jz @f
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;if (v && !l.enabled)
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mov dword[ebx+offs_ligh_enabled],1
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mov ecx,[eax+offs_cont_first_light]
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mov [ebx+offs_ligh_next],ecx
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mov [eax+offs_cont_first_light],ebx ;context.first_light = l
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mov dword[ebx+offs_ligh_prev],0 ;l.prev = NULL
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jmp .end_f
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@@:
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xor ecx,ecx
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cmp dword[v],0
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jne @f
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not ecx
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@@:
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and ecx,[ebx+offs_ligh_enabled]
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or ecx,ecx
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jz .end_f
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;else if (!v && l.enabled)
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mov dword[ebx+offs_ligh_enabled],0 ;l.enabled = 0
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mov ecx,[ebx+offs_ligh_next]
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cmp dword[ebx+offs_ligh_prev],0 ;if (l.prev == NULL)
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jne .els_0
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mov [eax+offs_cont_first_light],ecx ;context.first_light = l.next
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jmp @f
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.els_0:
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mov eax,[ebx+offs_ligh_prev]
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mov [eax+offs_ligh_next],ecx ;l.prev.next = l.next
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@@:
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cmp dword[ebx+offs_ligh_next],0
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je .end_f
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mov ecx,[ebx+offs_ligh_prev]
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mov eax,[ebx+offs_ligh_next]
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mov [eax+offs_ligh_prev],ecx ;l.next.prev = l.prev
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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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fl_1e_3 dd 1.0e-3
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; non optimized lightening model
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align 4
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proc gl_shade_vertex, context:dword, v:dword
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locals
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R dd ? ;float ebp-96
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G dd ? ;float ebp-92
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B dd ? ;float ebp-88
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A dd ? ;float ebp-84
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s V3 ;ebp-80
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d V3 ;ebp-68
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tmp dd ? ;float ebp-56
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att dd ? ;float ebp-52
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dot_spot dd ? ;float ebp-48
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lR dd ? ;float ebp-44
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lB dd ? ;float ebp-40
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lG dd ? ;float ebp-36
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twoside dd ? ;int ebp-32
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idx dd ? ;int ebp-28
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n V3 ;ebp-24
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vcoord V3 ;ebp-12
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endl
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pushad
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; ebx -> GLLight *l
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; ecx -> GLMaterial *m
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; esi -> GLVertex *v
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;n = v.normal
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;d = l.position
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; diffuse light
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;dot = d*n
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;dot_spot = d*l.norm_spot_direction
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; specular light
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;s = d-v.ec
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;dot_spec = n*s
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mov esi,[v]
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mov edx,[context]
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mov ecx,edx
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add ecx,offs_cont_materials ;ecx(m) = &context.materials[0]
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mov eax,[edx+offs_cont_light_model_two_side]
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mov [twoside],eax
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add esi,offs_vert_normal
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mov edi,ebp
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sub edi,24 ;edi = &n
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movsd ;n.X=v.normal.X
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movsd ;n.Y=v.normal.Y
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movsd ;n.Z=v.normal.Z
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mov esi,[v]
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fld dword[edx+offs_cont_ambient_light_model]
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fmul dword[ecx+offs_mate_ambient]
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fadd dword[ecx] ;offs_mate_emission=0
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fstp dword[R] ;R=m.emission.v[0]+m.ambient.v[0]*context.ambient_light_model.v[0]
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fld dword[edx+offs_cont_ambient_light_model+4]
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fmul dword[ecx+offs_mate_ambient+4]
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fadd dword[ecx+offs_mate_emission+4]
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fstp dword[G]
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fld dword[edx+offs_cont_ambient_light_model+8]
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fmul dword[ecx+offs_mate_ambient+8]
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fadd dword[ecx+offs_mate_emission+8]
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fstp dword[B]
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clampf [ecx+offs_mate_diffuse+12],0,1
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mov [A],eax ;A=clampf(m.diffuse.v[3],0,1)
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mov ebx,[edx+offs_cont_first_light]
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.cycle_0: ;for(l=context.first_light;l!=NULL;l=l.next)
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or ebx,ebx
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jz .cycle_0_end
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; ambient
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fld dword[ecx+offs_mate_ambient]
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fmul dword[ebx] ;offs_ligh_ambient=0
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fstp dword[lR] ;lR=l.ambient.v[0] * m.ambient.v[0]
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fld dword[ecx+offs_mate_ambient+4]
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fmul dword[ebx+offs_ligh_ambient+4]
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fstp dword[lG] ;lG=l.ambient.v[1] * m.ambient.v[1]
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fld dword[ecx+offs_mate_ambient+8]
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fmul dword[ebx+offs_ligh_ambient+8]
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fstp dword[lB] ;lB=l.ambient.v[2] * m.ambient.v[2]
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fld dword[ebx+offs_ligh_position+offs_W]
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ftst ;if (l.position.v[3] == 0)
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fstsw ax
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sahf
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jne .els_0
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; light at infinity
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ffree st0 ;l.position.v[3]
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fincstp
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mov eax,[ebx+offs_ligh_norm_position]
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mov [d],eax ;d.X=l.norm_position.v[0]
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mov eax,[ebx+offs_ligh_norm_position+offs_Y]
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mov [d+offs_Y],eax ;d.Y=l.norm_position.v[1]
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mov eax,[ebx+offs_ligh_norm_position+offs_Z]
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mov [d+offs_Z],eax ;d.Z=l.norm_position.v[2]
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mov dword[att],1.0
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jmp .els_0_end
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.els_0:
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; distance attenuation
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ffree st0 ;l.position.v[3]
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fincstp
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fld dword[ebx+offs_ligh_position]
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fsub dword[esi+offs_vert_ec]
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fstp dword[d] ;d.X=l.position.v[0]-v.ec.v[0]
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fld dword[ebx+offs_ligh_position+offs_Y]
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fsub dword[esi+offs_vert_ec+offs_Y]
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fstp dword[d+offs_Y] ;d.Y=l.position.v[1]-v.ec.v[1]
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fld dword[ebx+offs_ligh_position+offs_Z]
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fsub dword[esi+offs_vert_ec+offs_Z]
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fstp dword[d+offs_Z] ;d.Z=l.position.v[2]-v.ec.v[2]
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fld dword[d]
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fmul st0,st0
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fld dword[d+offs_Y]
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fmul st0,st0
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faddp
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fld dword[d+offs_Z]
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fmul st0,st0
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faddp
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fsqrt ;dist=sqrt(d.X^2+d.Y^2+d.Z^2)
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fcom dword[fl_1e_3]
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fstsw ax
|
|
sahf
|
|
jbe @f ;if (dist>1.0e-3)
|
|
fld1
|
|
fdiv st0,st1
|
|
fld dword[d]
|
|
fmul st0,st1
|
|
fstp dword[d]
|
|
fld dword[d+offs_Y]
|
|
fmul st0,st1
|
|
fstp dword[d+offs_Y]
|
|
fld dword[d+offs_Z]
|
|
fmul st0,st1
|
|
fstp dword[d+offs_Z]
|
|
ffree st0 ;1.0/dist
|
|
fincstp
|
|
@@:
|
|
fld dword[ebx+offs_ligh_attenuation+8]
|
|
fmul st0,st1 ;st0 = dist * l.attenuation[2]
|
|
fadd dword[ebx+offs_ligh_attenuation+4]
|
|
fmul st0,st1
|
|
fadd dword[ebx+offs_ligh_attenuation]
|
|
fld1
|
|
fdiv st0,st1
|
|
fstp dword[att] ;att = 1.0f/(l.attenuation[0]+dist*(l.attenuation[1]+dist*l.attenuation[2]))
|
|
ffree st0 ;1.0
|
|
fincstp
|
|
ffree st0 ;dist
|
|
fincstp
|
|
.els_0_end:
|
|
fld dword[d]
|
|
fmul dword[n]
|
|
fld dword[d+offs_Y]
|
|
fmul dword[n+offs_Y]
|
|
faddp
|
|
fld dword[d+offs_Z]
|
|
fmul dword[n+offs_Z]
|
|
faddp ;dot = d.X*n.X+d.Y*n.Y+d.Z*n.Z
|
|
cmp dword[twoside],0 ;if (twoside && dot < 0)
|
|
je @f
|
|
ftst ;if (dot<0)
|
|
fstsw ax
|
|
sahf
|
|
jae @f
|
|
fchs ;dot = -dot
|
|
@@:
|
|
ftst ;if (dot>0)
|
|
fstsw ax
|
|
sahf
|
|
jbe .if0_end
|
|
; diffuse light
|
|
fld dword[ecx+offs_mate_diffuse]
|
|
fmul dword[ebx+offs_ligh_diffuse]
|
|
fmul st0,st1
|
|
fadd dword[lR]
|
|
fstp dword[lR] ;lR+=dot * l.diffuse.v[0] * m.diffuse.v[0]
|
|
fld dword[ecx+offs_mate_diffuse+4]
|
|
fmul dword[ebx+offs_ligh_diffuse+4]
|
|
fmul st0,st1
|
|
fadd dword[lG]
|
|
fstp dword[lG] ;lG+=dot * l.diffuse.v[1] * m.diffuse.v[1]
|
|
fld dword[ecx+offs_mate_diffuse+8]
|
|
fmul dword[ebx+offs_ligh_diffuse+8]
|
|
fmul st0,st1
|
|
fadd dword[lB]
|
|
fstp dword[lB] ;lB+=dot * l.diffuse.v[2] * m.diffuse.v[2]
|
|
ffree st0 ;dot
|
|
fincstp
|
|
|
|
; spot light
|
|
fld dword[ebx+offs_ligh_spot_cutoff]
|
|
fcomp dword[an180f] ;if (l.spot_cutoff != 180)
|
|
fstsw ax
|
|
sahf
|
|
je .if1_end
|
|
fld dword[ebx+offs_ligh_norm_spot_direction]
|
|
fmul dword[d]
|
|
fld dword[ebx+offs_ligh_norm_spot_direction+offs_Y]
|
|
fmul dword[d+offs_Y]
|
|
faddp
|
|
fld dword[ebx+offs_ligh_norm_spot_direction+offs_Z]
|
|
fmul dword[d+offs_Z]
|
|
faddp
|
|
fchs
|
|
fst dword[dot_spot]
|
|
cmp dword[twoside],0 ;if (twoside && dot_spot < 0)
|
|
je @f
|
|
ftst ;if (dot_spot<0)
|
|
fstsw ax
|
|
sahf
|
|
jae @f
|
|
fchs ;dot_spot = -dot_spot
|
|
@@:
|
|
fcom dword[ebx+offs_ligh_cos_spot_cutoff] ;if (dot_spot < l.cos_spot_cutoff)
|
|
fstsw ax
|
|
sahf
|
|
jae .els_1
|
|
; no contribution
|
|
ffree st0 ;dot_spot
|
|
fincstp
|
|
mov ebx,[ebx+offs_ligh_next]
|
|
jmp .cycle_0 ;continue
|
|
.els_1:
|
|
; TODO: optimize
|
|
fld dword[ebx+offs_ligh_spot_exponent]
|
|
ftst ;if (l.spot_exponent > 0)
|
|
fstsw ax
|
|
sahf
|
|
jbe @f
|
|
fxch st1 ;dot_spot <--> l.spot_exponent
|
|
;Вычисляем x^y
|
|
;fld y
|
|
;fld x
|
|
fyl2x ;Стек FPU теперь содержит: st0=z=y*log2(x):
|
|
;Теперь считаем 2**z:
|
|
fld st0 ;Создаем еще одну копию z
|
|
frndint ;Округляем
|
|
fsubr st0,st1 ;st1=z, st0=z-trunc(z)
|
|
f2xm1 ;st1=z, st0=2**(z-trunc(z))-1
|
|
fld1
|
|
faddp ;st1=z, st0=2**(z-trunc(z))
|
|
fscale ;st1=z, st0=(2**trunc(z))*(2**(z-trunc(z)))=2**t
|
|
fxch st1
|
|
fstp st ;Результат остается на вершине стека st0
|
|
fmul dword[att]
|
|
fstp dword[att] ;att=att*pow(dot_spot,l.spot_exponent)
|
|
jmp .if1_end_f1
|
|
@@:
|
|
ffree st0 ;l.spot_exponent
|
|
fincstp
|
|
.if1_end_f1:
|
|
ffree st0 ;dot_spot
|
|
fincstp
|
|
.if1_end:
|
|
|
|
; specular light
|
|
cmp dword[edx+offs_cont_local_light_model],0 ;if (c.local_light_model)
|
|
je .els_2
|
|
mov eax,[esi+offs_vert_ec]
|
|
mov [vcoord],eax ;vcoord.X=v.ec.X
|
|
mov eax,[esi+offs_vert_ec+offs_Y]
|
|
mov [vcoord+offs_Y],eax ;vcoord.Y=v.ec.Y
|
|
mov eax,[esi+offs_vert_ec+offs_Z]
|
|
mov [vcoord+offs_Z],eax ;vcoord.Z=v.ec.Z
|
|
mov eax,ebp
|
|
sub eax,12 ;eax = &vcoord
|
|
stdcall gl_V3_Norm, eax
|
|
fld dword[d]
|
|
fsub dword[vcoord]
|
|
fstp dword[s] ;s.X=d.X-vcoord.X
|
|
fld dword[d+offs_Y]
|
|
fsub dword[vcoord+offs_Y]
|
|
fstp dword[s+offs_Y] ;s.Y=d.Y-vcoord.Y
|
|
fld dword[d+offs_Z]
|
|
fsub dword[vcoord+offs_Z]
|
|
fstp dword[s+offs_Z] ;s.Z=d.Z-vcoord.Z
|
|
jmp .els_2_end
|
|
.els_2:
|
|
mov eax,[d]
|
|
mov [s],eax ;s.X=d.X
|
|
mov eax,[d+offs_Y]
|
|
mov [s+offs_Y],eax ;s.Y=d.Y
|
|
fld1
|
|
fadd dword[d+offs_Z]
|
|
fstp dword[s+offs_Z] ;s.Z=d.Z+1.0
|
|
.els_2_end:
|
|
fld dword[n]
|
|
fmul dword[s]
|
|
fld dword[n+offs_Y]
|
|
fmul dword[s+offs_Y]
|
|
faddp
|
|
fld dword[n+offs_Z]
|
|
fmul dword[s+offs_Z]
|
|
faddp ;dot_spec = n.X*s.X +n.Y*s.Y +n.Z*s.Z
|
|
cmp dword[twoside],0 ;if (twoside && dot_spec < 0)
|
|
je @f
|
|
ftst ;if (dot_spec < 0)
|
|
fstsw ax
|
|
sahf
|
|
jae @f
|
|
fchs ;dot_spec = -dot_spec
|
|
@@:
|
|
ftst ;if (dot_spec > 0)
|
|
fstsw ax
|
|
sahf
|
|
jbe .if0_end
|
|
fld dword[s]
|
|
fmul st0,st0
|
|
fld dword[s+offs_Y]
|
|
fmul st0,st0
|
|
faddp
|
|
fld dword[s+offs_Z]
|
|
fmul st0,st0
|
|
faddp ;st0 = s.X^2 +s.Y^2 +s.Z^2
|
|
fsqrt
|
|
fcom dword[fl_1e_3]
|
|
fstsw ax
|
|
sahf
|
|
jbe @f ;if (tmp > 1.0e-3)
|
|
fdiv st1,st0 ;dot_spec /= tmp
|
|
@@:
|
|
ffree st0 ;tmp
|
|
fincstp
|
|
|
|
; TODO: optimize
|
|
; testing specular buffer code
|
|
; dot_spec= pow(dot_spec,m.shininess)
|
|
stdcall specbuf_get_buffer, edx, dword[ecx+offs_mate_shininess_i], dword[ecx+offs_mate_shininess]
|
|
mov edi,eax ;edi = specbuf
|
|
mov dword[idx],SPECULAR_BUFFER_SIZE ;idx = SPECULAR_BUFFER_SIZE
|
|
|
|
;idx = (int)(dot_spec*SPECULAR_BUFFER_SIZE)
|
|
fimul dword[idx]
|
|
fistp dword[idx]
|
|
;if (idx > SPECULAR_BUFFER_SIZE) idx = SPECULAR_BUFFER_SIZE
|
|
cmp dword[idx],SPECULAR_BUFFER_SIZE
|
|
jle @f
|
|
mov dword[idx],SPECULAR_BUFFER_SIZE
|
|
@@:
|
|
shl dword[idx],2
|
|
add edi,dword[idx]
|
|
fld dword[edi+offs_spec_buf] ;dot_spec = specbuf.buf[idx]
|
|
fld dword[ebx+offs_ligh_specular]
|
|
fmul st0,st1
|
|
fmul dword[ecx+offs_mate_specular]
|
|
fadd dword[lR]
|
|
fstp dword[lR] ;lR+=dot_spec * l.specular.v[0] * m.specular.v[0]
|
|
fld dword[ebx+offs_ligh_specular+4]
|
|
fmul st0,st1
|
|
fmul dword[ecx+offs_mate_specular+4]
|
|
fadd dword[lG]
|
|
fstp dword[lG] ;lG+=dot_spec * l.specular.v[1] * m.specular.v[1]
|
|
fld dword[ebx+offs_ligh_specular+8]
|
|
fmul st0,st1
|
|
fmul dword[ecx+offs_mate_specular+8]
|
|
fadd dword[lB]
|
|
fstp dword[lB] ;lB+=dot_spec * l.specular.v[2] * m.specular.v[2]
|
|
.if0_end:
|
|
ffree st0 ;dot [or] dot_spec
|
|
fincstp
|
|
.if2_end:
|
|
|
|
fld dword[att]
|
|
fld dword[lR]
|
|
fmul st0,st1
|
|
fadd dword[R]
|
|
fstp dword[R] ;R += att * lR
|
|
fld dword[lG]
|
|
fmul st0,st1
|
|
fadd dword[G]
|
|
fstp dword[G] ;G += att * lG
|
|
fld dword[lB]
|
|
fmul st0,st1
|
|
fadd dword[B]
|
|
fstp dword[B] ;B += att * lB
|
|
ffree st0 ;att
|
|
fincstp
|
|
mov ebx,[ebx+offs_ligh_next]
|
|
jmp .cycle_0
|
|
.cycle_0_end:
|
|
|
|
clampf [R],0,1
|
|
mov [esi+offs_vert_color],eax ;v.color.v[0]=clampf(R,0,1)
|
|
clampf [G],0,1
|
|
mov [esi+offs_vert_color+4],eax ;v.color.v[1]=clampf(G,0,1)
|
|
clampf [B],0,1
|
|
mov [esi+offs_vert_color+8],eax ;v.color.v[2]=clampf(B,0,1)
|
|
mov eax,[A]
|
|
mov [esi+offs_vert_color+12],eax ;v.color.v[3]=A
|
|
popad
|
|
ret
|
|
endp
|
|
|