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Line 36... Line 36...
36 
 
 36 
 
37 
macro DRAW_INIT
 37 
macro DRAW_INIT
38 
{
 38 
{
39 
if TGL_FEATURE_RENDER_BITS eq 24
 39 
if TGL_FEATURE_RENDER_BITS eq 24
40 
	mov ecx,[p2]
 40 
	mov ecx,[p2]
41 
	mov eax,[ecx+offs_zbup_r]
 41 
	mov eax,[ecx+ZBufferPoint.r]
42 
	mov [colorR],ah ;colorR=p2.r>>8
 42 
	mov [colorB],ah ;colorB=p2.r>>8
43 
	mov eax,[ecx+offs_zbup_g]
 43 
	mov eax,[ecx+ZBufferPoint.g]
44 
	mov [colorG],ah ;colorG=p2.g>>8
 44 
	mov [colorG],ah ;colorG=p2.g>>8
45 
	mov eax,[ecx+offs_zbup_b]
 45 
	mov eax,[ecx+ZBufferPoint.b]
46 
	mov [colorB],ah ;colorB=p2.b>>8
 46 
	mov [colorR],ah ;colorR=p2.b>>8
47 
;else
 47 
;else
48 
;color=RGB_TO_PIXEL(p2.r,p2.g,p2.b)
 48 
;color=RGB_TO_PIXEL(p2.r,p2.g,p2.b)
49 
end if
 49 
end if
Line 50... Line 50...
50 
}
 50 
}
51 
 
 51 
 
52 
macro PUT_PIXEL _a
 52 
macro PUT_PIXEL _a
- 
 
 53 
{
- 
 
 54 
local .end_0
- 
 
 55 
if _a eq 0
53 
{
 56 
	mov ebx,[dzdx]
54 
local .end_0
 57 
end if
55 
	mov eax,[z]
 58 
	mov eax,[z]
56 
	shr eax,ZB_POINT_Z_FRAC_BITS
 59 
	shr eax,ZB_POINT_Z_FRAC_BITS
57 
	cmp ax,word[esi+2*_a] ;if (zz >= pz[_a])
 60 
	cmp ax,word[esi+2*_a] ;if (zz >= pz[_a])
58 
	jl .end_0
 61 
	jl .end_0
59 
		;edi = pp
 62 
		;edi = pp
60 
		mov word[esi+2*_a],ax ;пишем в буфер глубины новое значение
 - 
 
61 
if TGL_FEATURE_RENDER_BITS eq 24
 63 
		mov word[esi+2*_a],ax ;пишем в буфер глубины новое значение
62 
		mov al,[colorR]
 64 
if TGL_FEATURE_RENDER_BITS eq 24
63 
		mov ah,[colorG]
 65 
		mov ax,word[colorB] ;сохраняем colorB и colorG
64 
		mov word[edi+3*_a],ax
 66 
		mov word[edi+3*_a],ax
65 
		mov al,[colorB]
 67 
		mov al,[colorR]
66 
		mov byte[edi+3*_a +2],al
 68 
		mov byte[edi+3*_a +2],al
67 
;else
 69 
;else
68 
;pp[_a]=color
 70 
;pp[_a]=color
69 
end if
 - 
 
70 
	.end_0:
 71 
end if
71 
	mov eax,[dzdx]
 72 
	.end_0:
Line 72... Line 73...
72 
	add [z],eax
 73 
	add [z],ebx
73 
}
 74 
}
74 
 
 75 
 
75 
align 16
 76 
align 16
76 
proc ZB_fillTriangleFlat, zb:dword, p0:dword, p1:dword, p2:dword
 77 
proc ZB_fillTriangleFlat, zb:dword, p0:dword, p1:dword, p2:dword
77 
locals
 78 
locals
78 
if TGL_FEATURE_RENDER_BITS eq 24
 79 
if TGL_FEATURE_RENDER_BITS eq 24
79 
	colorR db ?
 80 
	colorB db ?
80 
	colorG db ?
 81 
	colorG db ?
81 
	colorB db ? ;unsigned char
 82 
	colorR db ? ;unsigned char
82 
else
 83 
else
Line 104... Line 105...
104 
	cmp ax,word[esi+2*_a] ;if (zz >= pz[_a])
 105 
	cmp ax,word[esi+2*_a] ;if (zz >= pz[_a])
105 
	jl .end_0
 106 
	jl .end_0
106 
		;edi = pp
 107 
		;edi = pp
107 
		mov word[esi+2*_a],ax ;пишем в буфер глубины новое значение
 108 
		mov word[esi+2*_a],ax ;пишем в буфер глубины новое значение
108 
if TGL_FEATURE_RENDER_BITS eq 24
 109 
if TGL_FEATURE_RENDER_BITS eq 24
109 
		mov ebx,[or1]
 - 
 
110 
		mov eax,[og1]
 110 
		mov eax,[og1]
111 
		mov al,bh
 111 
		mov al,byte[or1+1]
112 
		mov word[edi+3*_a],ax
 112 
		mov word[edi+3*_a],ax
113 
		mov eax,[ob1]
 113 
		mov eax,[ob1]
114 
		mov byte[edi+3*_a +2],ah
 114 
		mov byte[edi+3*_a +2],ah
115 
end if
 115 
end if
116 
;if TGL_FEATURE_RENDER_BITS eq 32
 116 
;if TGL_FEATURE_RENDER_BITS eq 32
117 
;pp[_a] = RGB_TO_PIXEL(or1, og1, ob1)
 117 
;pp[_a] = RGB_TO_PIXEL(or1, og1, ob1)
118 
;end if
 118 
;end if
119 
	.end_0:
 119 
	.end_0:
- 
 
 120 
if _a eq 0
120 
	mov eax,[dzdx]
 121 
	mov ebx,[dzdx]
121 
	add [z],eax
 122 
	mov ecx,[dgdx]
122 
	mov eax,[dgdx]
 123 
	mov edx,[drdx]
- 
 
 124 
end if
123 
	add [og1],eax
 125 
	add [z],ebx
124 
	mov eax,[drdx]
 126 
	add [og1],ecx
125 
	add [or1],eax
 127 
	add [or1],edx
126 
	mov eax,[dbdx]
 128 
	mov eax,[dbdx]
127 
	add [ob1],eax
 129 
	add [ob1],eax
128 
}
 130 
}
Line 129... Line 131...
129 
 
 131 
 
Line 135... Line 137...
135 
align 16
 137 
align 16
136 
proc ZB_setTexture uses eax ebx, zb:dword, texture:dword,\
 138 
proc ZB_setTexture uses eax ebx, zb:dword, texture:dword,\
137 
	s_bound:dword, t_bound:dword, s_log2:dword
 139 
	s_bound:dword, t_bound:dword, s_log2:dword
138 
	mov eax,[zb]
 140 
	mov eax,[zb]
139 
	mov ebx,[texture]
 141 
	mov ebx,[texture]
140 
	mov dword[eax+offs_zbuf_current_texture],ebx
 142 
	mov dword[eax+ZBuffer.current_texture],ebx
141 
	mov ebx,[s_log2]
 143 
	mov ebx,[s_log2]
142 
	mov dword[eax+offs_zbuf_s_log2],ebx
 144 
	mov dword[eax+ZBuffer.s_log2],ebx
143 
	mov ebx,[s_bound]
 145 
	mov ebx,[s_bound]
144 
	mov dword[eax+offs_zbuf_s_bound],ebx
 146 
	mov dword[eax+ZBuffer.s_bound],ebx
145 
	mov ebx,[t_bound]
 147 
	mov ebx,[t_bound]
146 
	mov dword[eax+offs_zbuf_t_bound],ebx
 148 
	mov dword[eax+ZBuffer.t_bound],ebx
147 
	ret
 149 
	ret
148 
endp
 150 
endp
Line 149... Line 151...
149 
 
 151 
 
150 
INTERP_Z equ 1
 152 
INTERP_Z equ 1
Line 151... Line 153...
151 
INTERP_ST equ 1
 153 
INTERP_ST equ 1
152 
 
 154 
 
153 
macro DRAW_INIT
 155 
macro DRAW_INIT
154 
{
 156 
{
155 
	mov eax,[zb]
 157 
	mov eax,[zb]
156 
	mov ebx,[eax+offs_zbuf_current_texture]
 158 
	mov ebx,[eax+ZBuffer.current_texture]
157 
	mov [texture],ebx
 159 
	mov [texture],ebx
158 
	mov ebx,[eax+offs_zbuf_s_log2]
 160 
	mov ebx,[eax+ZBuffer.s_log2]
159 
	mov [s_log2],ebx ;s_log2 = zb.s_log2
 161 
	mov [s_log2],ebx ;s_log2 = zb.s_log2
160 
	mov ebx,[eax+offs_zbuf_s_bound]
 162 
	mov ebx,[eax+ZBuffer.s_bound]
161 
	mov [s_bound],ebx ;s_bound = zb.s_bound
 163 
	mov [s_bound],ebx ;s_bound = zb.s_bound
162 
	mov ebx,[eax+offs_zbuf_t_bound]
 164 
	mov ebx,[eax+ZBuffer.t_bound]
Line 163... Line 165...
163 
	mov [t_bound],ebx ;t_bound = zb.t_bound
 165 
	mov [t_bound],ebx ;t_bound = zb.t_bound
164 
}
 166 
}
Line 179... Line 181...
179 
		shr ebx,cl ;(t & t_bound) >> s_log2
 181 
		shr ebx,cl ;(t & t_bound) >> s_log2
180 
		mov eax,[s]
 182 
		mov eax,[s]
181 
		and eax,[s_bound]
 183 
		and eax,[s_bound]
182 
		shr eax,ZB_POINT_TEXEL_SIZE
 184 
		shr eax,ZB_POINT_TEXEL_SIZE
183 
		or ebx,eax
 185 
		or ebx,eax
184 
		imul ebx,3
 186 
		lea ebx,[ebx+2*ebx]
185 
		add ebx,[texture] ;ptr = texture + (((t & 0x3fc00000) | s) >> 14) * 3
 187 
		add ebx,[texture] ;ptr = texture + (((t & 0x3fc00000) | s) >> 14) * 3
186 
		mov ax,word[ebx]
 188 
		mov ax,word[ebx]
187 
		mov word[edi+3*_a],ax ;pp[3 * _a]= ptr[0,1]
 189 
		mov word[edi+3*_a],ax ;pp[3 * _a]= ptr[0,1]
188 
		mov al,byte[ebx+2]
 190 
		mov al,byte[ebx+2]
189 
		mov byte[edi+3*_a +2],al ;pp[3 * _a + 2]= ptr[2]
 191 
		mov byte[edi+3*_a +2],al ;pp[3 * _a + 2]= ptr[2]
Line 220... Line 222...
220 
NB_INTERP equ 8
 222 
NB_INTERP equ 8
Line 221... Line 223...
221 
 
 223 
 
222 
macro DRAW_INIT
 224 
macro DRAW_INIT
223 
{
 225 
{
224 
	mov eax,[zb]
 226 
	mov eax,[zb]
225 
	mov ebx,[eax+offs_zbuf_current_texture]
 227 
	mov ebx,[eax+ZBuffer.current_texture]
226 
	mov [texture],ebx
 228 
	mov [texture],ebx
227 
	mov ebx,[eax+offs_zbuf_s_log2]
 229 
	mov ebx,[eax+ZBuffer.s_log2]
228 
	mov [s_log2],ebx ;s_log2 = zb.s_log2
 230 
	mov [s_log2],ebx ;s_log2 = zb.s_log2
229 
	mov ebx,[eax+offs_zbuf_s_bound]
 231 
	mov ebx,[eax+ZBuffer.s_bound]
230 
	mov [s_bound],ebx ;s_bound = zb.s_bound
 232 
	mov [s_bound],ebx ;s_bound = zb.s_bound
231 
	mov ebx,[eax+offs_zbuf_t_bound]
 233 
	mov ebx,[eax+ZBuffer.t_bound]
232 
	mov [t_bound],ebx ;t_bound = zb.t_bound
 234 
	mov [t_bound],ebx ;t_bound = zb.t_bound
233 
	mov dword[esp-4],NB_INTERP
 235 
	mov dword[esp-4],NB_INTERP
234 
	fild dword[esp-4]
 236 
	fild dword[esp-4]
235 
	fild dword[dzdx]
 237 
	fild dword[dzdx]
Line 259... Line 261...
259 
		shr ebx,cl ;(t & t_bound) >> s_log2
 261 
		shr ebx,cl ;(t & t_bound) >> s_log2
260 
		mov eax,[s]
 262 
		mov eax,[s]
261 
		and eax,[s_bound]
 263 
		and eax,[s_bound]
262 
		shr eax,ZB_POINT_TEXEL_SIZE
 264 
		shr eax,ZB_POINT_TEXEL_SIZE
263 
		or ebx,eax
 265 
		or ebx,eax
264 
		imul ebx,3
 266 
		lea ebx,[ebx+2*ebx]
265 
		add ebx,[texture] ;ptr = texture + (((t & 0x3fc00000) | (s & 0x003FC000)) >> 14) * 3
 267 
		add ebx,[texture] ;ptr = texture + (((t & 0x3fc00000) | (s & 0x003FC000)) >> 14) * 3
266 
		mov ax,word[ebx]
 268 
		mov ax,word[ebx]
267 
		mov word[edi+3*_a],ax ;pp[3 * _a]= ptr[0,1]
 269 
		mov word[edi+3*_a],ax ;pp[3 * _a]= ptr[0,1]
268 
		mov al,byte[ebx+2]
 270 
		mov al,byte[ebx+2]
269 
		mov byte[edi+3*_a +2],al ;pp[3 * _a + 2]= ptr[2]
 271 
		mov byte[edi+3*_a +2],al ;pp[3 * _a + 2]= ptr[2]