WebSVN – Kolibri OS – Blame – /programs/develop/libraries/TinyGL/asm_fork/vertex.asm

Rev	Author	Line No.	Line
5153	IgorA	1
		2	proc glopNormal uses ecx esi edi, context:dword, p:dword
		3	mov esi,[p]
		4	add esi,4
		5	mov edi,[context]
		6	add edi,offs_cont_current_normal
		7	mov ecx,3
5218	IgorA	8	rep movsd
5153	IgorA	9	mov dword[edi],0.0 ;context.current_normal.W = 0.0
5218	IgorA	10	ret
5153	IgorA	11	endp
		12
		13
		14	proc glopTexCoord uses ecx esi edi, context:dword, p:dword
		15	mov esi,[p]
		16	add esi,4
		17	mov edi,[context]
		18	add edi,offs_cont_current_tex_coord
		19	mov ecx,4
		20	rep movsd
		21	ret
		22	endp
		23
		24
		25	proc glopEdgeFlag uses eax ebx, context:dword, p:dword
		26	mov eax,[context]
		27	mov ebx,[p]
		28	mov ebx,[ebx+4] ;ebx = p[1]
		29	mov dword[eax+offs_cont_current_edge_flag],ebx
		30	ret
		31	endp
		32
		33
		34	proc glopColor uses eax ecx esi edi, context:dword, p:dword
		35	locals
		36	q rd 7
		37	endl
		38	;current_color[3] = p[1-4]
		39	;longcurrent_color[2] = p[5-7]
		40	mov esi,[p]
		41	add esi,4
		42	mov edi,[context]
		43	add edi,offs_cont_current_color
		44	mov ecx,7
		45	rep movsd
		46
		47
		48	cmp dword[eax+offs_cont_color_material_enabled],0
5213	IgorA	49	je @f
		50	mov dword[q],OP_Material
5153	IgorA	51	mov ecx,[eax+offs_cont_current_color_material_mode]
		52	mov dword[q+4],ecx
		53	mov ecx,[eax+offs_cont_current_color_material_type]
		54	mov dword[q+8],ecx
		55	mov esi,[p]
		56	add esi,4
		57	mov edi,ebp
5213	IgorA	58	sub edi,16 ;edi = &q[3]
		59	mov ecx,4
5153	IgorA	60	rep movsd
		61	;mov edi,ebp
5262	IgorA	62	sub edi,28 ;edi = &q
		63	stdcall glopMaterial, eax,edi
		64	@@:
5153	IgorA	65	ret
		66	endp
		67
		68
		69	proc gl_eval_viewport uses eax, context:dword
		70	locals
		71	zsize dd ? ;float
		72	endl
		73	mov eax,[context]
		74	add eax,offs_cont_viewport ;eax = (GLViewport*) v
		75
		76
		77	fild dword[zsize]
		78	fstp dword[zsize]
		79
		80
		81	fld1
		82	fadd st1,st0 ;st1 = 2.0
		83	fdiv st0,st1 ;st0 = 0.5
		84
		85
		86	fsub st0,st1
		87	fdiv st0,st2
		88	fst dword[eax+offs_vpor_scale+offs_X]
		89	fiadd dword[eax+offs_vpor_xmin]
		90	fstp dword[eax+offs_vpor_trans+offs_X]
		91
		92
		93	fsub st0,st1
		94	fdiv st0,st2
		95	fchs
		96	fst dword[eax+offs_vpor_scale+offs_Y]
		97	fchs
		98	fiadd dword[eax+offs_vpor_ymin]
		99	fstp dword[eax+offs_vpor_trans+offs_Y]
		100
		101
		102	fsub st0,st1
		103	fdiv st0,st2
		104	fchs
		105	fst dword[eax+offs_vpor_scale+offs_Z]
		106	fchs
		107	mov dword[zsize],(1 shl ZB_POINT_Z_FRAC_BITS) / 2
		108	fiadd dword[zsize]
		109	fstp dword[eax+offs_vpor_trans+offs_Z]
		110	ret
		111	endp
		112
		113
		114
		115	proc glopBegin uses eax ebx ecx edx, context:dword, p:dword
		116	locals
		117	tmp M4
		118	endl
		119	; assert(c->in_begin == 0);
		120
		121
		122	mov ebx,[p]
		123	mov ebx,[ebx+4] ;ebx = p[1]
		124	mov [edx+offs_cont_begin_type],ebx
		125	mov dword[edx+offs_cont_in_begin],1
		126	mov dword[edx+offs_cont_vertex_n],0
		127	mov dword[edx+offs_cont_vertex_cnt],0
		128
		129
		130	jnc .end_mmpu
		131
		132
		133	je @f
		134	if DEBUG ;context.matrix_stack_ptr[0]
5256	IgorA	135	stdcall gl_print_matrix,dword[edx+offs_cont_matrix_stack_ptr],4
		136	end if
		137	; precompute inverse modelview
5153	IgorA	138	mov ebx,ebp
		139	sub ebx,64
		140	stdcall gl_M4_Inv, ebx,dword[edx+offs_cont_matrix_stack_ptr]
5256	IgorA	141	if DEBUG ;tmp
		142	stdcall dbg_print,txt_sp,txt_nl
		143	stdcall gl_print_matrix,ebx,4
		144	end if
		145	push ebx
		146	mov ebx,edx
		147	add ebx,offs_cont_matrix_model_view_inv
		148	stdcall gl_M4_Transpose, ebx
		149	if DEBUG ;context.matrix_model_view_inv
		150	stdcall dbg_print,txt_sp,txt_nl
		151	stdcall gl_print_matrix,ebx,4
		152	end if
		153	jmp .end_if_0
5153	IgorA	154	@@:
		155	mov ecx,edx
		156	add ecx,offs_cont_matrix_model_projection
		157	; precompute projection matrix
		158	stdcall gl_M4_Mul, ecx,dword[edx+offs_cont_matrix_stack_ptr+4],dword[edx+offs_cont_matrix_stack_ptr]
		159
5213	IgorA	160
5153	IgorA	161	mov dword[edx+offs_cont_matrix_model_projection_no_w_transform],0
		162	fldz
		163	fld dword[ecx+12*4]
		164	fcomp st1
		165	fstsw ax
		166	sahf
		167	jne .end_if_0
		168	fld dword[ecx+13*4]
		169	fcomp st1
		170	fstsw ax
		171	sahf
		172	jne .end_if_0
		173	fld dword[ecx+14*4]
		174	fcomp st1
		175	fstsw ax
		176	sahf
		177	jne .end_if_0
		178	mov dword[edx+offs_cont_matrix_model_projection_no_w_transform],1
		179	.end_if_0:
		180
		181
		182	mov eax,edx
5218	IgorA	183	add eax,offs_cont_matrix_stack_ptr+8
		184	stdcall gl_M4_IsId,eax
		185	xor eax,1
		186	mov dword[edx+offs_cont_apply_texture_matrix],eax
		187
5153	IgorA	188
		189	.end_mmpu:
		190
		191
		192	cmp dword[edx+offs_cont_viewport+offs_vpor_updated],0 ;if (context.viewport.updated)
		193	je @f
		194	stdcall gl_eval_viewport,edx
		195	mov dword[edx+offs_cont_viewport+offs_vpor_updated],0
		196	@@:
		197	; triangle drawing functions
		198	cmp dword[edx+offs_cont_render_mode],GL_SELECT
		199	jne @f
		200	mov dword[edx+offs_cont_draw_triangle_front],gl_draw_triangle_select
		201	mov dword[edx+offs_cont_draw_triangle_back],gl_draw_triangle_select
		202	jmp .end_if_2
		203	@@:
		204
		205
		206	jne @f
		207	mov dword[edx+offs_cont_draw_triangle_front],gl_draw_triangle_point
		208	jmp .end_if_1
		209	@@:
		210	cmp dword[edx+offs_cont_polygon_mode_front],GL_LINE
		211	jne @f
		212	mov dword[edx+offs_cont_draw_triangle_front],gl_draw_triangle_line
		213	jmp .end_if_1
		214	@@: ;default:
		215	mov dword[edx+offs_cont_draw_triangle_front],gl_draw_triangle_fill
		216	.end_if_1:
		217
		218
		219	jne @f
		220	mov dword[edx+offs_cont_draw_triangle_back],gl_draw_triangle_point
		221	jmp .end_if_2
		222	@@:
		223	cmp dword[edx+offs_cont_polygon_mode_back],GL_LINE
		224	jne @f
		225	mov dword[edx+offs_cont_draw_triangle_back],gl_draw_triangle_line
		226	jmp .end_if_2
		227	@@: ;default:
		228	mov dword[edx+offs_cont_draw_triangle_back],gl_draw_triangle_fill
		229	.end_if_2:
		230	ret
		231	endp
		232
		233
		234	; TODO : handle all cases
		235	align 4
		236	proc gl_vertex_transform, context:dword, v:dword
		237	pushad
		238	mov eax,[context]
		239	mov edx,[v]
		240	cmp dword[eax+offs_cont_lighting_enabled],0 ;if (context.lighting_enabled)
		241	je .els_0
		242	; eye coordinates needed for lighting
		243	mov ebx,dword[eax+offs_cont_matrix_stack_ptr]
		244	finit
		245	fld dword[edx+offs_vert_coord+offs_X]
		246	fld dword[edx+offs_vert_coord+offs_Y]
		247	fld dword[edx+offs_vert_coord+offs_Z]
		248
		249
		250	.cycle_0:
		251	fld dword[ebx] ;st0 = m[0]
		252	fmul st0,st3 ;st0 *= v.coord.X
		253	fld dword[ebx+4] ;st0 = m[1]
		254	fmul st0,st3 ;st0 *= v.coord.Y
		255	faddp ;st0 = v.coord.X * m[0] + v.coord.Y * m[1]
5269	IgorA	256	fld dword[ebx+8] ;st0 = m[2]
5153	IgorA	257	fmul st0,st2 ;st0 *= v.coord.Z
5269	IgorA	258	fadd dword[ebx+12] ;st0 += m[3]
5153	IgorA	259	faddp ;st0 += v.ec.X
5269	IgorA	260	fstp dword[edx+offs_vert_ec] ;v.ec.X = v.coord.X * m[0] + v.coord.Y * m[1] + v.coord.Z * m[2] + m[3]
5153	IgorA	261	add ebx,16 ;следущая строка матрицы
		262	add edx,4 ;следущая координата вектора
		263	loop .cycle_0
		264	ffree st0
5218	IgorA	265	fincstp
		266	ffree st0
		267	fincstp
		268	ffree st0
		269	fincstp
		270
5153	IgorA	271
		272	mov ebx,dword[eax+offs_cont_matrix_stack_ptr+4]
		273	mov edx,[v]
		274
5218	IgorA	275
5153	IgorA	276	fld dword[edx+offs_vert_ec+offs_Y]
		277	fld dword[edx+offs_vert_ec+offs_Z]
		278
		279
		280	.cycle_1:
		281	fld dword[ebx] ;st0 = m[0]
		282	fmul st0,st3 ;st0 *= v.ec.X
		283	fld dword[ebx+4] ;st0 = m[1]
		284	fmul st0,st3 ;st0 *= v.ec.Y
		285	faddp ;st0 = v.ec.X * m[0] + v.ec.Y * m[1]
5269	IgorA	286	fld dword[ebx+8] ;st0 = m[2]
5153	IgorA	287	fmul st0,st2 ;st0 *= v.ec.Z
5269	IgorA	288	fadd dword[ebx+12] ;st0 += m[3]
5153	IgorA	289	faddp ;st0 = v.pc.X
5269	IgorA	290	fstp dword[edx+offs_vert_pc] ;v.pc.X = v.ec.X * m[0] + v.ec.Y * m[1] + v.ec.Z * m[2] + m[3]
5153	IgorA	291	add ebx,16 ;следущая строка матрицы
		292	add edx,4 ;следущая координата вектора
		293	loop .cycle_1
		294	ffree st0
5218	IgorA	295	fincstp
		296	ffree st0
		297	fincstp
		298	ffree st0
		299	fincstp
		300
5153	IgorA	301
		302	add ebx,offs_cont_matrix_model_view_inv
		303	mov edi,eax
		304	add edi,offs_cont_current_normal
		305	mov edx,[v]
		306
5218	IgorA	307
5256	IgorA	308	fld dword[edi+offs_Y]
5153	IgorA	309	fld dword[edi+offs_Z]
		310
		311
		312	add edx,offs_vert_normal
5269	IgorA	313	.cycle_2:
5153	IgorA	314	fld dword[ebx] ;st0 = m[0]
5218	IgorA	315	fmul st0,st3 ;st0 *= n.X
		316	fld dword[ebx+4] ;st0 = m[1]
		317	fmul st0,st3 ;st0 *= n.Y
		318	faddp ;st0 = n.X * m[0] + n.Y * m[1]
5269	IgorA	319	fld dword[ebx+8] ;st0 = m[2]
5218	IgorA	320	fmul st0,st2 ;st0 *= n.Z
5269	IgorA	321	faddp ;st0 = v.normal.X
		322	fstp dword[edx] ;v.normal.X = n.X * m[0] + n.Y * m[1] + n.Z * m[2]
		323	add ebx,16 ;следущая строка матрицы
5153	IgorA	324	add edx,4 ;следущая координата вектора
		325	loop .cycle_2
		326
		327
		328	je .end_els
		329	sub edx,12
5269	IgorA	330	stdcall gl_V3_Norm,edx
5218	IgorA	331	jmp .end_els
5153	IgorA	332	.els_0:
		333	; no eye coordinates needed, no normal
		334	; NOTE: W = 1 is assumed
		335	mov ebx,eax
		336	add ebx,offs_cont_matrix_model_projection
		337
		338
		339	fld dword[edx+offs_vert_coord+offs_X]
		340	fld dword[edx+offs_vert_coord+offs_Y]
		341	fld dword[edx+offs_vert_coord+offs_Z]
		342
		343
		344	add esi,offs_vert_pc
		345
		346
		347	fmul st0,st3 ;st0 *= v.coord.X
		348	fld dword[ebx+4] ;st0 = m[1]
		349	fmul st0,st3 ;st0 *= v.coord.Y
		350	faddp ;st0 = v.coord.X * m[0] + v.coord.Y * m[1]
5269	IgorA	351	fld dword[ebx+8] ;st0 = m[2]
5153	IgorA	352	fmul st0,st2 ;st0 *= v.coord.Z
5269	IgorA	353	fadd dword[ebx+12] ;st0 += m[3]
5153	IgorA	354	faddp ;st0 = v.pc.X
5269	IgorA	355	fstp dword[esi] ;v.pc.X = v.coord.X * m[0] + v.coord.Y * m[1] + v.coord.Z * m[2] + m[3]
5153	IgorA	356
5175	IgorA	357
5153	IgorA	358	fmul st0,st3 ;st0 *= v.coord.X
		359	fld dword[ebx+20] ;st0 = m[5]
		360	fmul st0,st3 ;st0 *= v.coord.Y
		361	faddp ;st0 = v.coord.X * m[4] + v.coord.Y * m[5]
5269	IgorA	362	fld dword[ebx+24] ;st0 = m[6]
5153	IgorA	363	fmul st0,st2 ;st0 *= v.coord.Z
5269	IgorA	364	fadd dword[ebx+28] ;st0 += m[7]
5153	IgorA	365	faddp ;st0 = v.pc.Y
5269	IgorA	366	fstp dword[esi+4] ;v.pc.Y = v.coord.X * m[4] + v.coord.Y * m[5] + v.coord.Z * m[6] + m[7]
		367
5175	IgorA	368
5153	IgorA	369	fmul st0,st3 ;st0 *= v.coord.X
		370	fld dword[ebx+36] ;st0 = m[9]
		371	fmul st0,st3 ;st0 *= v.coord.Y
		372	faddp ;st0 = v.coord.X * m[8] + v.coord.Y * m[9]
5269	IgorA	373	fld dword[ebx+40] ;st0 = m[10]
5153	IgorA	374	fmul st0,st2 ;st0 *= v.coord.Z
5269	IgorA	375	fadd dword[ebx+44] ;st0 += m[11]
5153	IgorA	376	faddp ;st0 = v.pc.Z
5269	IgorA	377	fstp dword[esi+8] ;v.pc.Z = v.coord.X * m[8] + v.coord.Y * m[9] + v.coord.Z * m[10] + m[11]
		378
5153	IgorA	379
		380	je .els_1
		381	;if (context.matrix_model_projection_no_w_transform)
		382	mov ebx,dword[ebx+60] ;ebx = m[15]
		383	mov dword[esi+12],ebx ;v.pc.W = m[15]
		384	jmp .end_els
		385	.els_1:
		386	fld dword[ebx+48] ;st0 = m[12]
		387	fmul st0,st3 ;st0 *= v.coord.X
		388	fld dword[ebx+52] ;st0 = m[13]
		389	fmul st0,st3 ;st0 *= v.coord.Y
		390	faddp ;st0 = v.coord.X * m[12] + v.coord.Y * m[13]
5269	IgorA	391	fld dword[ebx+56] ;st0 = m[14]
5153	IgorA	392	fmul st0,st2 ;st0 *= v.coord.Z
5269	IgorA	393	fadd dword[ebx+60] ;st0 += m[15]
5153	IgorA	394	faddp ;st0 = v.pc.W
5269	IgorA	395	fstp dword[esi+12] ;v.pc.W = v.coord.X * m[12] + v.coord.Y * m[13] + v.coord.Z * m[14] + m[15]
5153	IgorA	396	.end_els:
		397	ffree st0
5175	IgorA	398	fincstp
		399	ffree st0
		400	fincstp
		401	ffree st0
		402	fincstp
		403
		404
5153	IgorA	405	stdcall dbg_print,f_vt,txt_nl
		406	mov edx,[v]
		407	add edx,offs_vert_pc
		408	stdcall gl_print_matrix,edx,1
		409	end if
		410	mov edx,[v]
		411	stdcall gl_clipcode, dword[edx+offs_vert_pc+offs_X], dword[edx+offs_vert_pc+offs_Y],\
		412	dword[edx+offs_vert_pc+offs_Z], dword[edx+offs_vert_pc+offs_W]
		413	mov dword[edx+offs_vert_clip_code],eax
		414	popad
		415	ret
		416	endp
		417
		418
		419	proc glopVertex, context:dword, p:dword
		420	locals
		421	;ebx = GLVertex * v
		422	n dd ? ;ebp-4
		423	endl
		424	pushad
		425	mov edx,[context]
		426
		427
		428
		429
		430	mov [n],ecx
		431	inc dword[edx+offs_cont_vertex_cnt]
		432
		433
		434	mov ecx,[edx+offs_cont_vertex_max]
		435	cmp dword[n],ecx
		436	jl @f
		437	shl dword[edx+offs_cont_vertex_max],1 ; just double size
		438	imul ecx,2*sizeof.GLVertex
		439	stdcall gl_malloc,ecx
		440	cmp eax,0
		441	jne .no_err
		442	;gl_fatal_error("unable to allocate GLVertex array.\n");
		443	.no_err:
		444	mov edi,eax
		445	mov ebx,eax
		446	mov esi,[edx+offs_cont_vertex]
		447	mov ecx,[n]
		448	imul ecx,(sizeof.GLVertex)/4 ;((...)/4) что-бы использовать movsd вместо movsb
		449	rep movsd
		450	stdcall gl_free,dword[edx+offs_cont_vertex]
		451	mov dword[edx+offs_cont_vertex],ebx
		452	@@:
		453	; new vertex entry
		454	mov ebx,[n]
		455	imul ebx,sizeof.GLVertex
		456	add ebx,[edx+offs_cont_vertex]
		457	inc dword[n]
		458
		459
		460	add esi,4
		461	mov edi,ebx
		462	add edi,offs_vert_coord ;edi = &v.coord
		463	mov ecx,4
		464	rep movsd
		465
		466
		467
		468
		469	cmp dword[edx+offs_cont_lighting_enabled],0
		470	je .els_0
		471	stdcall gl_shade_vertex, edx,ebx
		472	jmp @f
		473	.els_0:
		474	mov eax,[edx+offs_cont_current_color]
		475	mov [ebx+offs_vert_color],eax
		476	mov eax,[edx+offs_cont_current_color+4]
5213	IgorA	477	mov [ebx+offs_vert_color+4],eax
		478	mov eax,[edx+offs_cont_current_color+8]
		479	mov [ebx+offs_vert_color+8],eax
		480	@@:
5153	IgorA	481
		482
		483	cmp dword[edx+offs_cont_texture_2d_enabled],0
		484	je @f
		485	cmp dword[edx+offs_cont_apply_texture_matrix],0
		486	je .els_1
		487	mov eax,edx
5269	IgorA	488	add eax,offs_cont_current_tex_coord
		489	push eax ;&context.current_tex_coord
		490	mov eax,ebx
		491	add eax,offs_vert_tex_coord
		492	stdcall gl_M4_MulV4, eax, dword[edx+offs_cont_matrix_stack_ptr+8]
		493	jmp @f
5153	IgorA	494	.els_1:
		495	mov esi,edx
5269	IgorA	496	add esi,offs_cont_current_tex_coord
		497	mov edi,ebx
		498	add edi,offs_vert_tex_coord
		499	mov ecx,4
		500	rep movsd
		501	@@:
5153	IgorA	502
		503
		504	cmp dword[ebx+offs_vert_clip_code],0
		505	jne @f
		506	stdcall gl_transform_to_viewport, edx,ebx
		507	@@:
		508
		509
		510	mov eax,[edx+offs_cont_current_edge_flag]
		511	mov dword[ebx+offs_vert_edge_flag],eax ;v.edge_flag = context.current_edge_flag
		512
		513
		514	jne @f
		515	stdcall gl_draw_point, edx, dword[edx+offs_cont_vertex] ;dword[edx+...] = &context.vertex[0]
		516	mov dword[n],0
		517	jmp .end_f
		518	@@:
		519	cmp dword[edx+offs_cont_begin_type],GL_LINES
		520	jne @f
		521	cmp dword[n],2
		522	jne .end_f
		523	mov eax,[edx+offs_cont_vertex]
		524	push eax
		525	add eax,sizeof.GLVertex
		526	stdcall gl_draw_line, edx, eax
5175	IgorA	527	xor eax,eax
5153	IgorA	528	mov dword[n],eax
		529	jmp .end_f
		530	@@:
		531	cmp dword[edx+offs_cont_begin_type],GL_LINE_STRIP
		532	je .li_loop
		533	cmp dword[edx+offs_cont_begin_type],GL_LINE_LOOP
		534	jne @f
		535	.li_loop:
		536	cmp dword[n],1
		537	jne .els_2
		538	mov esi,[edx+offs_cont_vertex]
		539	mov edi,esi
		540	add edi,2*sizeof.GLVertex
		541	mov ecx,(sizeof.GLVertex)/4 ;((...)/4) что-бы использовать movsd вместо movsb
		542	rep movsd ;context.vertex[2] = context.vertex[0]
		543	jmp .end_f
		544	.els_2:
		545	cmp dword[n],2
		546	jne .end_f ;else if (n == 2)
		547	mov eax,[edx+offs_cont_vertex]
		548	push eax
		549	mov edi,eax
5218	IgorA	550	add eax,sizeof.GLVertex
5153	IgorA	551	mov esi,eax
5218	IgorA	552	stdcall gl_draw_line, edx, eax
5175	IgorA	553	mov ecx,(sizeof.GLVertex)/4 ;((...)/4) что-бы использовать movsd вместо movsb
5153	IgorA	554	rep movsd ;context.vertex[0] = context.vertex[1]
		555	mov dword[n],1
		556	jmp .end_f
		557	@@:
		558	cmp dword[edx+offs_cont_begin_type],GL_TRIANGLES
		559	jne @f
		560	cmp dword[n],3
		561	jne .end_f
		562	mov eax,[edx+offs_cont_vertex]
5175	IgorA	563	mov [esp-4],eax
5218	IgorA	564	add eax,sizeof.GLVertex
5175	IgorA	565	mov [esp-8],eax
5218	IgorA	566	add eax,sizeof.GLVertex
5175	IgorA	567	mov [esp-12],eax
5218	IgorA	568	sub esp,12
		569	stdcall gl_draw_triangle, edx
		570	xor eax,eax
5153	IgorA	571	mov dword[n],eax
		572	jmp .end_f
		573	@@:
		574	cmp dword[edx+offs_cont_begin_type],GL_TRIANGLE_STRIP
		575	jne @f
		576	cmp dword[edx+offs_cont_vertex_cnt],3 ;if (context.vertex_cnt >= 3)
5269	IgorA	577	jl .end_f
		578	cmp dword[n],3
		579	jne .ts3
		580	xor eax,eax
		581	mov dword[n],eax
		582	.ts3:
		583	; needed to respect triangle orientation
		584	mov eax,[edx+offs_cont_vertex]
		585	bt dword[edx+offs_cont_vertex_cnt],0
		586	jc .case_1
		587	mov [esp-12],eax
		588	add eax,sizeof.GLVertex
		589	mov [esp-8],eax
		590	add eax,sizeof.GLVertex
		591	mov [esp-4],eax
		592	sub esp,12
		593	stdcall gl_draw_triangle, edx ;&v[2],&v[1],&v[0]
		594	jmp .end_f
		595	.case_1:
		596	mov [esp-4],eax
		597	add eax,sizeof.GLVertex
		598	mov [esp-8],eax
		599	add eax,sizeof.GLVertex
		600	mov [esp-12],eax
		601	sub esp,12
		602	stdcall gl_draw_triangle, edx ;&v[0],&v[1],&v[2]
		603	jmp .end_f
5153	IgorA	604	@@:
		605	cmp dword[edx+offs_cont_begin_type],GL_TRIANGLE_FAN
		606	jne @f
		607	cmp dword[n],3
5218	IgorA	608	jne .end_f
5153	IgorA	609	mov eax,[edx+offs_cont_vertex]
5218	IgorA	610	mov [esp-4],eax
		611	add eax,sizeof.GLVertex
		612	mov [esp-8],eax
		613	mov edi,eax
		614	add eax,sizeof.GLVertex
		615	mov [esp-12],eax
		616	mov esi,eax
		617	sub esp,12
		618	stdcall gl_draw_triangle, edx
		619	mov ecx,(sizeof.GLVertex)/4 ;((...)/4) что-бы использовать movsd вместо movsb
		620	rep movsd ;context.vertex[1] = context.vertex[2]
		621	mov dword[n],2
5153	IgorA	622	jmp .end_f
		623	@@:
		624	cmp dword[edx+offs_cont_begin_type],GL_QUADS
		625	jne @f
		626	cmp dword[n],4
		627	jne .end_f
		628	mov eax,[edx+offs_cont_vertex]
5213	IgorA	629	add eax,2*sizeof.GLVertex
		630	mov dword[eax+offs_vert_edge_flag],0 ;context.vertex[2].edge_flag = 0
		631	push eax
		632	sub eax,sizeof.GLVertex
		633	push eax
		634	sub eax,sizeof.GLVertex
		635	stdcall gl_draw_triangle, edx,eax ;v0,v1,v2
		636	mov dword[eax+offs_vert_edge_flag],0 ;context.vertex[0].edge_flag = 0
		637	add eax,2*sizeof.GLVertex
		638	mov dword[eax+offs_vert_edge_flag],1 ;context.vertex[2].edge_flag = 1
		639	add eax,sizeof.GLVertex
		640	push eax
		641	sub eax,sizeof.GLVertex
		642	push eax
		643	sub eax,2*sizeof.GLVertex
		644	stdcall gl_draw_triangle, edx,eax ;v0,v2,v3
		645	xor eax,eax
5153	IgorA	646	mov dword[n],eax
		647	jmp .end_f
		648	@@:
		649	cmp dword[edx+offs_cont_begin_type],GL_QUAD_STRIP
		650	jne @f
		651	cmp dword[n],4
5218	IgorA	652	jne .end_f
5153	IgorA	653	mov eax,[edx+offs_cont_vertex]
5218	IgorA	654	mov [esp-4],eax
		655	mov edi,eax
		656	add eax,sizeof.GLVertex
		657	mov [esp-8],eax
		658	add eax,sizeof.GLVertex
		659	mov [esp-12],eax
		660	mov esi,eax
		661	sub esp,12
		662	stdcall gl_draw_triangle, edx ;v0,v1,v2
		663	mov [esp-12],eax
		664	add eax,sizeof.GLVertex
		665	mov [esp-8],eax
		666	sub eax,2*sizeof.GLVertex
		667	mov [esp-4],eax
		668	sub esp,12
		669	stdcall gl_draw_triangle, edx ;v1,v3,v2
		670	mov ecx,(sizeof.GLVertex)/2 ;((...)/2) копируем 2 вершины
		671	rep movsd ;context.vertex[0] = context.vertex[2], context.vertex[1] = context.vertex[3]
		672	mov dword[n],2
5153	IgorA	673	jmp .end_f
		674	@@:
		675	cmp dword[edx+offs_cont_begin_type],GL_POLYGON
		676	je .end_f
5213	IgorA	677	; default:
5153	IgorA	678	; gl_fatal_error("glBegin: type %x not handled\n", c->begin_type);
		679	; }
		680	.end_f:
		681
		682
		683	mov [edx+offs_cont_vertex_n],ecx
		684	popad
		685	ret
		686	endp
		687
		688
		689	proc glopEnd uses eax ebx ecx, context:dword, p:dword
5213	IgorA	690	mov eax,[context]
5153	IgorA	691	; assert(c->in_begin == 1);
		692
		693
		694	jne .else_i
		695	cmp dword[eax+offs_cont_vertex_cnt],3
		696	jl .end_i
		697	mov ebx,[eax+offs_cont_vertex]
		698	push ebx
		699	add ebx,2*sizeof.GLVertex
		700	push ebx
		701	stdcall gl_draw_line, eax
		702	jmp .end_i
		703	.else_i:
		704	cmp dword[eax+offs_cont_begin_type],GL_POLYGON
		705	jne .end_i
		706	mov ebx,dword[eax+offs_cont_vertex_cnt]
		707	@@: ;while (ebx >= 3)
		708	cmp ebx,3
		709	jl .end_i
		710	dec ebx
5213	IgorA	711	mov ecx,ebx
		712	imul ecx,sizeof.GLVertex
		713	add ecx,[eax+offs_cont_vertex]
		714	push ecx ;ecx = &context.vertex[i]
		715	sub ecx,sizeof.GLVertex
		716	push ecx ;ecx = &context.vertex[i-1]
		717	stdcall gl_draw_triangle, eax,[eax+offs_cont_vertex]
		718	jmp @b
5153	IgorA	719	.end_i:
		720	mov dword[eax+offs_cont_in_begin],0
		721	ret
		722	endp
		723

Subversion Repositories Kolibri OS

(root)/programs/develop/libraries/TinyGL/asm_fork/vertex.asm – Rev 5269