WebSVN – Kolibri OS – Blame – /programs/develop/libraries/TinyGL/asm_fork/zgl.inc

Rev	Author	Line No.	Line
5153	IgorA	1	include 'opengl_const.inc'
		2	include 'zbuffer.inc'
		3	include 'zmath.inc'
		4
6017	IgorA	5	offs_X equ 0
		6	offs_Y equ 4
		7	offs_Z equ 8
		8	offs_W equ 12
5153	IgorA	9
		10	;enum { OP_ ## a , ... }
5175	IgorA	11	sum1 equ 0
5153	IgorA	12	macro ADD_OP a,b,c
		13	{
5175	IgorA	14	OP_#a equ sum1
		15	sum1 equ (sum1+1)
5153	IgorA	16	}
		17	include 'opinfo.inc'
		18
		19
		20	;initially # of allocated GLVertexes (will grow when necessary)
		21	POLYGON_MAX_VERTEX equ 16
		22
		23	;Max # of specular light pow buffers
		24	MAX_SPECULAR_BUFFERS equ 8
		25	;# of entries in specular buffer
		26	SPECULAR_BUFFER_SIZE equ 1024
		27	;specular buffer granularity
		28	SPECULAR_BUFFER_RESOLUTION equ 1024
		29
		30
		31	MAX_MODELVIEW_STACK_DEPTH equ 32
		32	MAX_PROJECTION_STACK_DEPTH equ 8
		33	MAX_TEXTURE_STACK_DEPTH equ 8
6108	IgorA	34	MAX_NAME_STACK_DEPTH equ 64
		35	MAX_TEXTURE_LEVELS equ 11
		36	MAX_LIGHTS equ 16
5153	IgorA	37
		38	VERTEX_HASH_SIZE equ 1031
		39
		40	MAX_DISPLAY_LISTS equ 1024
		41	OP_BUFFER_MAX_SIZE equ 512
		42
		43	TGL_OFFSET_FILL equ 0x1
		44	TGL_OFFSET_LINE equ 0x2
		45	TGL_OFFSET_POINT equ 0x4
		46
		47	struct GLSpecBuf
		48	shininess_i dd ? ;int
		49	last_used dd ? ;int
		50	buf rd SPECULAR_BUFFER_SIZE+1 ;float[SPECULAR_BUFFER_SIZE+1]
		51	next dd ? ;struct GLSpecBuf*
		52	ends
		53
5256	IgorA	54	offs_spec_shininess_i equ 0
		55	offs_spec_last_used equ 4
		56	offs_spec_buf equ 8
		57	offs_spec_next equ 8+4*(SPECULAR_BUFFER_SIZE+1)
		58
5153	IgorA	59	struct GLLight
		60	ambient V4
		61	diffuse V4
		62	specular V4
		63	position V4
		64	spot_direction V3
		65	spot_exponent dd ? ;float
		66	spot_cutoff dd ? ;float
		67	attenuation rd 3 ;float[3]
		68	; precomputed values
		69	cos_spot_cutoff dd ? ;float
		70	norm_spot_direction V3
		71	norm_position V3
		72	; we use a linked list to know which are the enabled lights
		73	enabled dd ? ;int
		74	next dd ? ;struct GLLight*
		75	prev dd ? ;struct GLLight*
		76	ends
		77
		78	offs_ligh_ambient equ 0 ;V4
		79	offs_ligh_diffuse equ 16 ;V4
		80	offs_ligh_specular equ 32 ;V4
		81	offs_ligh_position equ 48 ;V4
		82	offs_ligh_spot_direction equ 64 ;V3
		83	offs_ligh_spot_exponent equ 76 ;dd ?
		84	offs_ligh_spot_cutoff equ 80 ;dd ?
		85	offs_ligh_attenuation equ 84 ;rd 3
		86	offs_ligh_cos_spot_cutoff equ 96 ;dd ?
		87	offs_ligh_norm_spot_direction equ 100 ;V3
		88	offs_ligh_norm_position equ 112 ;V3
		89	offs_ligh_enabled equ 124 ;dd ?
		90	offs_ligh_next equ 128 ;dd ?
		91	offs_ligh_prev equ 132 ;dd ?
		92
		93	struct GLMaterial
		94	emission V4
		95	ambient V4
		96	diffuse V4
		97	specular V4
		98	shininess dd ? ;float
		99
		100	; computed values
		101	shininess_i dd ? ;int
		102	do_specular dd ? ;int
		103	ends
		104
		105	offs_mate_emission equ 0 ;V4
		106	offs_mate_ambient equ 16 ;V4
		107	offs_mate_diffuse equ 32 ;V4
		108	offs_mate_specular equ 48 ;V4
		109	offs_mate_shininess equ 64 ;dd
		110	offs_mate_shininess_i equ 68 ;dd
		111	offs_mate_do_specular equ 72 ;dd
		112
		113	struct GLViewport
		114	xmin dd ? ;int
		115	ymin dd ? ;int
		116	xsize dd ? ;int
		117	ysize dd ? ;int
		118	scale V3
		119	trans V3
		120	updated dd ? ;int
		121	ends
		122
		123	offs_vpor_xmin equ 0
		124	offs_vpor_ymin equ 4
		125	offs_vpor_xsize equ 8
		126	offs_vpor_ysize equ 12
		127	offs_vpor_scale equ 16
		128	offs_vpor_trans equ 28
		129	offs_vpor_updated equ 40
		130
		131	struct GLParamBuffer
		132	ops rd OP_BUFFER_MAX_SIZE ;GLParam[OP_BUFFER_MAX_SIZE]
		133	next dd ? ;struct GLParamBuffer*
		134	ends
		135
5171	IgorA	136	offs_gpbu_ops equ 0
		137	offs_gpbu_next equ 4*OP_BUFFER_MAX_SIZE
		138
5153	IgorA	139	struct GLList
		140	first_op_buffer dd ? ;GLParamBuffer*
5171	IgorA	141	; TODO: extensions for an hash table or a better allocating scheme
5153	IgorA	142	ends
		143
		144	struct GLVertex
		145	edge_flag dd ? ;int
		146	normal V3
		147	coord V4
		148	tex_coord V4
		149	color V4
		150
		151	; computed values
		152	ec V4 ; eye coordinates
		153	pc V4 ; coordinates in the normalized volume
		154	clip_code dd ? ;int ; clip code
		155	zp ZBufferPoint ; integer coordinates for the rasterization
		156	ends
		157
		158	offs_vert_edge_flag equ 0
		159	offs_vert_normal equ 4
		160	offs_vert_coord equ 16
		161	offs_vert_tex_coord equ 32
		162	offs_vert_color equ 48
		163	offs_vert_ec equ 64
		164	offs_vert_pc equ 80
		165	offs_vert_clip_code equ 96
		166	offs_vert_zp equ 100
		167
		168	struct GLImage
		169	pixmap dd ? ;void*
		170	xsize dd ? ;int
		171	ysize dd ? ;int
6243	IgorA	172	xsize_log2 dd ? ;unsigned int
		173	s_bound dd ? ;unsigned int
		174	t_bound dd ? ;unsigned int
5153	IgorA	175	ends
		176
		177	offs_imag_pixmap equ 0
6108	IgorA	178	offs_imag_xsize equ 4
		179	offs_imag_ysize equ 8
6243	IgorA	180	offs_imag_xsize_log2 equ 12
		181	offs_imag_s_bound equ 16
		182	offs_imag_t_bound equ 20
5153	IgorA	183
		184	; textures
		185
		186	TEXTURE_HASH_TABLE_SIZE equ 256 ;должно быть кратное 2, в коде берется остаток от деления (через and быстрее чем div)
		187
		188	struct GLTexture
		189	images rb sizeof.GLImage * MAX_TEXTURE_LEVELS ;GLImage[MAX_TEXTURE_LEVELS]
		190	handle dd ? ;int
		191	next dd ? ;struct GLTexture*
		192	prev dd ? ;struct GLTexture*
		193	ends
		194
		195	offs_text_images equ 0
		196	offs_text_handle equ sizeof.GLImage*MAX_TEXTURE_LEVELS
		197	offs_text_next equ 4+offs_text_handle
		198	offs_text_prev equ 8+offs_text_handle
		199
		200	; shared state
		201
		202	struct GLSharedState
		203	lists dd ? ;GLList**
		204	texture_hash_table dd ? ;GLTexture**
		205	ends
		206
		207
		208	; display context
		209
		210	struct GLContext
		211	; Z buffer
		212	zb dd ? ;ZBuffer*
		213
		214	; lights
		215	lights rb sizeof.GLLight * MAX_LIGHTS ;GLLight[MAX_LIGHTS]
		216	first_light dd ? ;GLLight*
		217	ambient_light_model V4
		218	local_light_model dd ? ;int
		219	lighting_enabled dd ? ;int
		220	light_model_two_side dd ? ;int
		221
		222	; materials
		223	materials rb sizeof.GLMaterial * 2 ;GLMaterial[2]
		224	color_material_enabled dd ? ;int
		225	current_color_material_mode dd ? ;int
		226	current_color_material_type dd ? ;int
		227
		228	; textures
		229	current_texture dd ? ;GLTexture*
		230	texture_2d_enabled dd ? ;int
		231
		232	; shared state
		233	shared_state GLSharedState
		234
		235	; current list
		236	current_op_buffer dd ? ;GLParamBuffer*
		237	current_op_buffer_index dd ? ;int
		238	exec_flag dd ? ;int
		239	compile_flag dd ? ;int
		240	print_flag dd ? ;int
		241
		242	; matrix
		243
		244	matrix_mode dd ? ;int режим активного вида матрицы (один из 3-х: GL_MODELVIEW, GL_PROJECTION, GL_TEXTURE)
		245	matrix_stack rd 3 ;*M4[3] указатель на начало массива матриц
		246	matrix_stack_ptr rd 3 ;*M4[3] указатель на активную матрицу из массива
		247	matrix_stack_depth_max rd 3 ;int[3] максимальное число матриц в массивах matrix_stack
		248
		249	matrix_model_view_inv M4
		250	matrix_model_projection M4
		251	matrix_model_projection_updated dd ? ;int
		252	matrix_model_projection_no_w_transform dd ? ;int
		253	apply_texture_matrix dd ? ;int
		254
		255	; viewport
		256	viewport GLViewport
		257
		258	; current state
		259	polygon_mode_back dd ? ;int
		260	polygon_mode_front dd ? ;int
		261
		262	current_front_face dd ? ;int
		263	current_shade_model dd ? ;int
		264	current_cull_face dd ? ;int
		265	cull_face_enabled dd ? ;int
		266	normalize_enabled dd ? ;int
		267	draw_triangle_front dd ? ;gl_draw_triangle_func
		268	draw_triangle_back dd ? ;gl_draw_triangle_func
		269
		270	; selection
		271	render_mode dd ? ;int
		272	select_buffer dd ? ;unsigned int*
		273	select_size dd ? ;int
		274	select_ptr dd ? ;unsigned int*
		275	select_hit dd ? ;unsigned int*
		276	select_overflow dd ? ;int
		277	select_hits dd ? ;int
		278
		279	; names
		280	name_stack rd MAX_NAME_STACK_DEPTH ;unsigned int[MAX_NAME_STACK_DEPTH]
		281	name_stack_size dd ? ;int
		282
		283	; clear
		284	clear_depth dd ? ;float
		285	clear_color V4
		286
		287	; current vertex state
		288	current_color V4
		289	longcurrent_color rd 3 ;unsigned int[3] ;precomputed integer color
		290	current_normal V4
		291	current_tex_coord V4
		292	current_edge_flag dd ? ;int
		293
		294	; glBegin / glEnd
		295	in_begin dd ? ;int
		296	begin_type dd ? ;int
		297	vertex_n dd ? ;int
		298	vertex_cnt dd ? ;int
		299	vertex_max dd ? ;int
		300	vertex dd ? ;GLVertex*
		301
		302	; opengl 1.1 arrays
		303	vertex_array dd ? ;float*
		304	vertex_array_size dd ? ;int
		305	vertex_array_stride dd ? ;int
		306	normal_array dd ? ;float*
		307	normal_array_stride dd ? ;int
		308	color_array dd ? ;float*
		309	color_array_size dd ? ;int
		310	color_array_stride dd ? ;int
		311	texcoord_array dd ? ;float*
		312	texcoord_array_size dd ? ;int
		313	texcoord_array_stride dd ? ;int
		314	client_states dd ? ;int
		315
		316	; opengl 1.1 polygon offset
		317	offset_factor dd ? ;float
		318	offset_units dd ? ;float
		319	offset_states dd ? ;int
		320
		321	; specular buffer. could probably be shared between contexts,
		322	; but that wouldn't be 100% thread safe
		323	specbuf_first dd ? ;GLSpecBuf*
		324	specbuf_used_counter dd ? ;int
		325	specbuf_num_buffers dd ? ;int
		326
		327	; opaque structure for user's use
		328	opaque dd ? ;void*
		329	; resize viewport function
		330	gl_resize_viewport dd ? ;(struct GLContext c,int xsize,int *ysize)
		331
		332	; depth test
		333	depth_test dd ? ;int
		334	ends
		335
		336	offs_cont_s0 equ (4 + sizeof.GLLight * MAX_LIGHTS)
		337	offs_cont_s1 equ (32 + offs_cont_s0 + sizeof.GLMaterial * 2)
		338	offs_cont_s2 equ (228 + offs_cont_s1 + sizeof.GLViewport)
		339	offs_cont_s3 equ (64 + offs_cont_s2 + MAX_NAME_STACK_DEPTH * 4)
		340
		341	offs_cont_zb equ 0 ;ZBuffer*
		342	offs_cont_lights equ 4 ;GLLight[MAX_LIGHTS]
		343	offs_cont_first_light equ offs_cont_s0 ;GLLight*
		344	offs_cont_ambient_light_model equ 4+offs_cont_s0 ;V4
		345	offs_cont_local_light_model equ 20+offs_cont_s0 ;int
		346	offs_cont_lighting_enabled equ 24+offs_cont_s0 ;int
		347	offs_cont_light_model_two_side equ 28+offs_cont_s0 ;int
		348	offs_cont_materials equ 32+offs_cont_s0 ;GLMaterial[2]
		349	offs_cont_color_material_enabled equ offs_cont_s1 ;int
		350	offs_cont_current_color_material_mode equ 4+offs_cont_s1 ;int
		351	offs_cont_current_color_material_type equ 8+offs_cont_s1 ;int
		352	offs_cont_current_texture equ 12+offs_cont_s1 ;GLTexture*
		353	offs_cont_texture_2d_enabled equ 16+offs_cont_s1 ;int
		354	offs_cont_shared_state equ 20+offs_cont_s1 ;GLSharedState
		355	offs_cont_current_op_buffer equ 28+offs_cont_s1 ;GLParamBuffer*
		356	offs_cont_current_op_buffer_index equ 32+offs_cont_s1 ;int
		357	offs_cont_exec_flag equ 36+offs_cont_s1 ;int
		358	offs_cont_compile_flag equ 40+offs_cont_s1 ;int
		359	offs_cont_print_flag equ 44+offs_cont_s1 ;int
		360	offs_cont_matrix_mode equ 48+offs_cont_s1 ;int
		361	offs_cont_matrix_stack equ 52+offs_cont_s1 ;*M4[3]
		362	offs_cont_matrix_stack_ptr equ 64+offs_cont_s1 ;*M4[3]
		363	offs_cont_matrix_stack_depth_max equ 76+offs_cont_s1 ;int[3]
		364	offs_cont_matrix_model_view_inv equ 88+offs_cont_s1 ;M4
		365	offs_cont_matrix_model_projection equ 152+offs_cont_s1 ;M4
		366	offs_cont_matrix_model_projection_updated equ 216+offs_cont_s1 ;int
		367	offs_cont_matrix_model_projection_no_w_transform equ 220+offs_cont_s1 ;int
		368	offs_cont_apply_texture_matrix equ 224+offs_cont_s1 ;int
		369	offs_cont_viewport equ 228+offs_cont_s1 ;GLViewport
		370	offs_cont_polygon_mode_back equ offs_cont_s2 ;int
		371	offs_cont_polygon_mode_front equ 4+offs_cont_s2 ;int
		372	offs_cont_current_front_face equ 8+offs_cont_s2 ;int
		373	offs_cont_current_shade_model equ 12+offs_cont_s2 ;int
		374	offs_cont_current_cull_face equ 16+offs_cont_s2 ;int
		375	offs_cont_cull_face_enabled equ 20+offs_cont_s2 ;int
		376	offs_cont_normalize_enabled equ 24+offs_cont_s2 ;int
		377	offs_cont_draw_triangle_front equ 28+offs_cont_s2 ;gl_draw_triangle_func
		378	offs_cont_draw_triangle_back equ 32+offs_cont_s2 ;gl_draw_triangle_func
		379	offs_cont_render_mode equ 36+offs_cont_s2 ;int
		380	offs_cont_select_buffer equ 40+offs_cont_s2 ;unsigned int*
		381	offs_cont_select_size equ 44+offs_cont_s2 ;int
		382	offs_cont_select_ptr equ 48+offs_cont_s2 ;unsigned int*
		383	offs_cont_select_hit equ 52+offs_cont_s2 ;unsigned int*
		384	offs_cont_select_overflow equ 56+offs_cont_s2 ;int
		385	offs_cont_select_hits equ 60+offs_cont_s2 ;int
		386	offs_cont_name_stack equ 64+offs_cont_s2 ;unsigned int[MAX_NAME_STACK_DEPTH]
		387	offs_cont_name_stack_size equ offs_cont_s3 ;int
		388	offs_cont_clear_depth equ 4+offs_cont_s3 ;float
		389	offs_cont_clear_color equ 8+offs_cont_s3 ;V4
		390	offs_cont_current_color equ 24+offs_cont_s3 ;V4
		391	offs_cont_longcurrent_color equ 40+offs_cont_s3 ;unsigned int[3]
		392	offs_cont_current_normal equ 52+offs_cont_s3 ;V4
		393	offs_cont_current_tex_coord equ 68+offs_cont_s3 ;V4
		394	offs_cont_current_edge_flag equ 84+offs_cont_s3 ;int
		395	offs_cont_in_begin equ 88+offs_cont_s3 ;int
		396	offs_cont_begin_type equ 92+offs_cont_s3 ;int
		397	offs_cont_vertex_n equ 96+offs_cont_s3 ;int
		398	offs_cont_vertex_cnt equ 100+offs_cont_s3 ;int
		399	offs_cont_vertex_max equ 104+offs_cont_s3 ;int
		400	offs_cont_vertex equ 108+offs_cont_s3 ;GLVertex*
		401	offs_cont_vertex_array equ 112+offs_cont_s3 ;float*
		402	offs_cont_vertex_array_size equ 116+offs_cont_s3 ;int
		403	offs_cont_vertex_array_stride equ 120+offs_cont_s3 ;int
		404	offs_cont_normal_array equ 124+offs_cont_s3 ;float*
		405	offs_cont_normal_array_stride equ 128+offs_cont_s3 ;int
		406	offs_cont_color_array equ 132+offs_cont_s3 ;float*
		407	offs_cont_color_array_size equ 136+offs_cont_s3 ;int
		408	offs_cont_color_array_stride equ 140+offs_cont_s3 ;int
		409	offs_cont_texcoord_array equ 144+offs_cont_s3 ;float*
		410	offs_cont_texcoord_array_size equ 148+offs_cont_s3 ;int
		411	offs_cont_texcoord_array_stride equ 152+offs_cont_s3 ;int
		412	offs_cont_client_states equ 156+offs_cont_s3 ;int
		413	offs_cont_offset_factor equ 160+offs_cont_s3 ;float
		414	offs_cont_offset_units equ 164+offs_cont_s3 ;float
		415	offs_cont_offset_states equ 168+offs_cont_s3 ;int
		416	offs_cont_specbuf_first equ 172+offs_cont_s3 ;GLSpecBuf*
		417	offs_cont_specbuf_used_counter equ 176+offs_cont_s3 ;int
		418	offs_cont_specbuf_num_buffers equ 180+offs_cont_s3 ;int
		419	offs_cont_opaque equ 184+offs_cont_s3 ;void*
		420	offs_cont_gl_resize_viewport equ 188+offs_cont_s3 ;(struct GLContext c,int xsize,int *ysize)
		421	offs_cont_depth_test equ 192+offs_cont_s3 ;int
		422
		423	align 16
		424	gl_ctx dd ? ;extern GLContext*
		425
		426	align 16
		427	proc gl_get_context
		428	mov eax,[gl_ctx]
		429	ret
		430	endp
		431
		432	; this clip epsilon is needed to avoid some rounding errors after
		433	; several clipping stages
		434
		435	CLIP_EPSILON dd 1.0e-5
		436
		437	align 4
		438	proc gl_clipcode uses ebx, x:dword, y:dword, z:dword, w1:dword
		439	xor ebx,ebx
		440
		441	fld1
		442	fadd dword[CLIP_EPSILON]
		443	fmul dword[w1]
		444
		445	fcom dword[x]
		446	fstsw ax
		447	sahf
		448	ja @f
		449	or ebx,2
		450	@@:
		451	fcom dword[y]
		452	fstsw ax
		453	sahf
		454	ja @f
		455	or ebx,8
		456	@@:
		457	fcom dword[z]
		458	fstsw ax
		459	sahf
		460	ja @f
		461	or ebx,32
		462	@@:
		463
		464	fchs
		465	fcom dword[x]
		466	fstsw ax
		467	sahf
		468	jbe @f
		469	or ebx,1
		470	@@:
		471	fcom dword[y]
		472	fstsw ax
		473	sahf
		474	jbe @f
		475	or ebx,4
		476	@@:
		477	fcom dword[z]
		478	fstsw ax
		479	sahf
		480	jbe @f
		481	or ebx,16
		482	@@:
		483
5208	IgorA	484	ffree st0
		485	fincstp
		486
5153	IgorA	487	mov eax,ebx
		488	ret
		489	endp
		490
		491	;input:
		492	; rf,gf,bf - значения float
		493	; ri,gi,bi - адреса куда будут записаны rf,gf,bf преобразованые в int
		494	align 4
		495	proc RGBFtoRGBI uses eax, rf:dword,gf:dword,bf:dword, ri:dword,gi:dword,bi:dword
		496	locals
		497	s dd ?
		498	endl
		499	mov dword[s],(ZB_POINT_RED_MAX - ZB_POINT_RED_MIN)
		500	fild dword[s]
		501	fmul dword[rf]
		502	mov eax,[ri]
		503	fistp dword[eax]
		504	add dword[eax],ZB_POINT_RED_MIN
		505
		506	mov dword[s],(ZB_POINT_GREEN_MAX - ZB_POINT_GREEN_MIN)
		507	fild dword[s]
		508	fmul dword[gf]
		509	mov eax,[gi]
		510	fistp dword[eax]
		511	add dword[eax],ZB_POINT_GREEN_MIN
		512
		513	;bi = (unsigned int) (bf * (ZB_POINT_BLUE_MAX - ZB_POINT_BLUE_MIN) + ZB_POINT_BLUE_MIN);
		514	mov dword[s],(ZB_POINT_BLUE_MAX - ZB_POINT_BLUE_MIN)
		515	fild dword[s]
		516	fmul dword[bf]
		517	mov eax,[bi]
		518	fistp dword[eax]
		519	add dword[eax],ZB_POINT_BLUE_MIN
		520	ret
		521	endp

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(root)/programs/develop/libraries/TinyGL/asm_fork/zgl.inc – Rev 6243