pack_bbox.h@ 62814

最後變更在這個檔案從62814是 15532,由 vboxsync 提交於 16 年前
crOpenGL: export to OSE
屬性 svn:eol-style 設為 `native` 屬性 svn:keywords 設為 `Id`
檔案大小: 5.8 KB

行
1	/* Copyright (c) 2001, Stanford University
2	* All rights reserved.
3	*
4	* See the file LICENSE.txt for information on redistributing this software.
5	*/
6
7	#ifndef CR_PACK_BBOX_H
8	#define CR_PACK_BBOX_H
9
10	#include "cr_pack.h"
11
12	#define UPDATE_1D_BBOX() \
13	if (pc->bounds_min.x > fx) pc->bounds_min.x = fx;\
14	if (pc->bounds_min.y > 0.0f) pc->bounds_min.y = 0.0f;\
15	if (pc->bounds_min.z > 0.0f) pc->bounds_min.z = 0.0f;\
16	if (pc->bounds_max.x < fx) pc->bounds_max.x = fx;\
17	if (pc->bounds_max.y < 0.0f) pc->bounds_max.y = 0.0f;\
18	if (pc->bounds_max.z < 0.0f) pc->bounds_max.z = 0.0f
19
20	#define UPDATE_2D_BBOX() \
21	if (pc->bounds_min.x > fx) pc->bounds_min.x = fx;\
22	if (pc->bounds_min.y > fy) pc->bounds_min.y = fy;\
23	if (pc->bounds_min.z > 0.0f) pc->bounds_min.z = 0.0f;\
24	if (pc->bounds_max.x < fx) pc->bounds_max.x = fx;\
25	if (pc->bounds_max.y < fy) pc->bounds_max.y = fy;\
26	if (pc->bounds_max.z < 0.0f) pc->bounds_max.z = 0.0f
27
28	#define UPDATE_3D_BBOX() \
29	if (pc->bounds_min.x > fx) pc->bounds_min.x = fx; \
30	if (pc->bounds_min.y > fy) pc->bounds_min.y = fy; \
31	if (pc->bounds_min.z > fz) pc->bounds_min.z = fz; \
32	if (pc->bounds_max.x < fx) pc->bounds_max.x = fx; \
33	if (pc->bounds_max.y < fy) pc->bounds_max.y = fy; \
34	if (pc->bounds_max.z < fz) pc->bounds_max.z = fz
35
36	#ifdef SIMD
37	#define UPDATE_3D_BBOX_SIMD() \
38	__asm {\
39	__asm movups xmm0, fx\
40	__asm movaps xmm1, pc->bounds_min.x\
41	__asm movaps xmm2, pc->bounds_max.x\
42	__asm minps xmm1, xmm0\
43	__asm maxps xmm2, xmm0\
44	__asm movaps pc->bounds_min.x, xmm1\
45	__asm movaps pc->bounds_max.x, xmm2\
46	}
47	#define UPDATE_3D_BBOX_SIMD_PACK() \
48	__asm {\
49	__asm mov ecx, [data_ptr]\
50	__asm movups xmm0, fx\
51	__asm movaps xmm1, pc->bounds_min.x\
52	__asm movaps xmm2, pc->bounds_max.x\
53	__asm minps xmm1, xmm0\
54	__asm maxps xmm2, xmm0\
55	__asm movaps pc->bounds_min.x, xmm1\
56	__asm movaps pc->bounds_max.x, xmm2\
57	__asm movups [ecx], xmm0\
58	}
59	#define UPDATE_3DV_BBOX_SIMD() \
60	__asm {\
61	__asm mov eax, [v]\
62	__asm mov ecx, [data_ptr]\
63	__asm movups xmm0, [eax]\
64	__asm movaps xmm1, pc->bounds_min.x\
65	__asm movaps xmm2, pc->bounds_max.x\
66	__asm minps xmm1, xmm0\
67	__asm maxps xmm2, xmm0\
68	__asm movaps pc->bounds_min.x, xmm1\
69	__asm movaps pc->bounds_max.x, xmm2\
70	__asm movups [ecx], xmm0\
71	}
72	#else
73	#define UPDATE_3DV_BBOX_SIMD() { CREATE_3D_VFLOATS(); UPDATE_3D_BBOX();}
74	#define UPDATE_3D_BBOX_SIMD() UPDATE_3D_BBOX()
75	#endif
76
77	#define CREATE_1D_FLOATS() \
78	GLfloat fx = (GLfloat) x;
79
80	#define CREATE_2D_FLOATS() \
81	GLfloat fx = (GLfloat) x; \
82	GLfloat fy = (GLfloat) y
83
84	#define CREATE_3D_FLOATS() \
85	GLfloat fx = (GLfloat) x; \
86	GLfloat fy = (GLfloat) y; \
87	GLfloat fz = (GLfloat) z
88
89	#define CREATE_4D_FLOATS() \
90	GLfloat fx = (GLfloat) x; \
91	GLfloat fy = (GLfloat) y; \
92	GLfloat fz = (GLfloat) z; \
93	GLfloat fw = (GLfloat) w; \
94	fx /= fw; fy /= fw; fz/= fw
95
96	/* For glVertexAttrib4NARB /
97	#define CREATE_3D_FLOATS_B_NORMALIZED() \
98	GLfloat fx = (GLfloat) x * (1.0 / 128.0); \
99	GLfloat fy = (GLfloat) y * (1.0 / 128.0); \
100	GLfloat fz = (GLfloat) z * (1.0 / 128.0);
101
102	#define CREATE_3D_FLOATS_UB_NORMALIZED() \
103	GLfloat fx = (GLfloat) x * (1.0 / 255.0); \
104	GLfloat fy = (GLfloat) y * (1.0 / 255.0); \
105	GLfloat fz = (GLfloat) z * (1.0 / 255.0);
106
107	#define CREATE_3D_FLOATS_US_NORMALIZED() \
108	GLfloat fx = (GLfloat) x * (1.0 / 65535.0); \
109	GLfloat fy = (GLfloat) y * (1.0 / 65535.0); \
110	GLfloat fz = (GLfloat) z * (1.0 / 65535.0);
111
112
113	#define CREATE_1D_VFLOATS() \
114	GLfloat fx = (GLfloat) v[0];
115
116	#define CREATE_2D_VFLOATS() \
117	GLfloat fx = (GLfloat) v[0]; \
118	GLfloat fy = (GLfloat) v[1]
119
120	#define CREATE_3D_VFLOATS() \
121	GLfloat fx = (GLfloat) v[0]; \
122	GLfloat fy = (GLfloat) v[1]; \
123	GLfloat fz = (GLfloat) v[2]
124
125	#define CREATE_4D_VFLOATS() \
126	GLfloat fx = (GLfloat) v[0]; \
127	GLfloat fy = (GLfloat) v[1]; \
128	GLfloat fz = (GLfloat) v[2]; \
129	GLfloat fw = (GLfloat) v[3]; \
130	fx /= fw; fy /= fw; fz/= fw
131
132	/* For glVertexAttrib4NARB /
133	#define CREATE_4D_FLOATS_UB_NORMALIZED() \
134	GLfloat fx = (GLfloat) (x * (1.0 / 255.0)); \
135	GLfloat fy = (GLfloat) (y * (1.0 / 255.0)); \
136	GLfloat fz = (GLfloat) (z * (1.0 / 255.0)); \
137	GLfloat fw = (GLfloat) (w * (1.0 / 255.0)); \
138	fx /= fw; fy /= fw; fz/= fw
139
140	#define CREATE_4D_VFLOATS_B_NORMALIZED() \
141	GLfloat fx = (GLfloat) (v[0] * (1.0 / 128.0)); \
142	GLfloat fy = (GLfloat) (v[1] * (1.0 / 128.0)); \
143	GLfloat fz = (GLfloat) (v[2] * (1.0 / 128.0)); \
144	GLfloat fw = (GLfloat) (v[3] * (1.0 / 128.0)); \
145	fx /= fw; fy /= fw; fz/= fw
146
147	#define CREATE_4D_VFLOATS_S_NORMALIZED() \
148	GLfloat fx = (GLfloat) (2.0 * v[0] + 1.0) / ((GLfloat) (0xffff)); \
149	GLfloat fy = (GLfloat) (2.0 * v[1] + 1.0) / ((GLfloat) (0xffff)); \
150	GLfloat fz = (GLfloat) (2.0 * v[2] + 1.0) / ((GLfloat) (0xffff)); \
151	GLfloat fw = (GLfloat) (2.0 * v[3] + 1.0) / ((GLfloat) (0xffff)); \
152	fx /= fw; fy /= fw; fz/= fw
153
154	#define CREATE_4D_VFLOATS_I_NORMALIZED() \
155	GLfloat fx = (GLfloat) (2.0 * v[0] + 1.0) / ((GLfloat) (0xffffffff)); \
156	GLfloat fy = (GLfloat) (2.0 * v[1] + 1.0) / ((GLfloat) (0xffffffff)); \
157	GLfloat fz = (GLfloat) (2.0 * v[2] + 1.0) / ((GLfloat) (0xffffffff)); \
158	GLfloat fw = (GLfloat) (2.0 * v[3] + 1.0) / ((GLfloat) (0xffffffff)); \
159	fx /= fw; fy /= fw; fz/= fw
160
161	#define CREATE_4D_VFLOATS_UB_NORMALIZED() \
162	GLfloat fx = (GLfloat) (v[0] * (1.0 / 255.0)); \
163	GLfloat fy = (GLfloat) (v[1] * (1.0 / 255.0)); \
164	GLfloat fz = (GLfloat) (v[2] * (1.0 / 255.0)); \
165	GLfloat fw = (GLfloat) (v[3] * (1.0 / 255.0)); \
166	fx /= fw; fy /= fw; fz/= fw
167
168	#define CREATE_4D_VFLOATS_US_NORMALIZED() \
169	GLfloat fx = (GLfloat) (v[0] * (1.0 / 65535.0)); \
170	GLfloat fy = (GLfloat) (v[1] * (1.0 / 65535.0)); \
171	GLfloat fz = (GLfloat) (v[2] * (1.0 / 65535.0)); \
172	GLfloat fw = (GLfloat) (v[3] * (1.0 / 65535.0)); \
173	fx /= fw; fy /= fw; fz/= fw
174
175	#define CREATE_4D_VFLOATS_UI_NORMALIZED() \
176	GLfloat fx = v[0] / ((GLfloat) (0xffffffff)); \
177	GLfloat fy = v[1] / ((GLfloat) (0xffffffff)); \
178	GLfloat fz = v[2] / ((GLfloat) (0xffffffff)); \
179	GLfloat fw = v[3] / ((GLfloat) (0xffffffff)); \
180	fx /= fw; fy /= fw; fz/= fw
181
182	#endif /* CR_PACK_BBOX_H */
183

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