1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
|
/*
* Copyright (C) 2009 Francisco Jerez.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
#ifndef __NOUVEAU_UTIL_H__
#define __NOUVEAU_UTIL_H__
#include "main/formats.h"
#include "main/colormac.h"
static inline unsigned
pack_rgba_i(mesa_format f, const uint8_t c[])
{
switch (f) {
case MESA_FORMAT_B8G8R8A8_UNORM:
return PACK_COLOR_8888(c[ACOMP], c[RCOMP], c[GCOMP], c[BCOMP]);
case MESA_FORMAT_A8R8G8B8_UNORM:
return PACK_COLOR_8888(c[BCOMP], c[GCOMP], c[RCOMP], c[ACOMP]);
case MESA_FORMAT_B8G8R8X8_UNORM:
return PACK_COLOR_8888(0, c[RCOMP], c[GCOMP], c[BCOMP]);
case MESA_FORMAT_X8R8G8B8_UNORM:
return PACK_COLOR_8888(c[BCOMP], c[GCOMP], c[RCOMP], 0);
case MESA_FORMAT_A8B8G8R8_UNORM:
return PACK_COLOR_8888(c[RCOMP], c[GCOMP], c[BCOMP], c[ACOMP]);
case MESA_FORMAT_R8G8B8A8_UNORM:
return PACK_COLOR_8888(c[ACOMP], c[BCOMP], c[GCOMP], c[RCOMP]);
case MESA_FORMAT_B5G6R5_UNORM:
return PACK_COLOR_565(c[RCOMP], c[GCOMP], c[BCOMP]);
default:
assert(0);
}
}
static inline unsigned
pack_zs_i(mesa_format f, uint32_t z, uint8_t s)
{
switch (f) {
case MESA_FORMAT_S8_UINT_Z24_UNORM:
return (z & 0xffffff00) | (s & 0xff);
case MESA_FORMAT_X8_UINT_Z24_UNORM:
return (z & 0xffffff00);
case MESA_FORMAT_Z_UNORM16:
return (z & 0xffff0000) >> 16;
default:
assert(0);
}
}
static inline unsigned
pack_rgba_f(mesa_format f, const float c[])
{
return pack_rgba_i(f, (uint8_t []) {
FLOAT_TO_UBYTE(c[RCOMP]),
FLOAT_TO_UBYTE(c[GCOMP]),
FLOAT_TO_UBYTE(c[BCOMP]),
FLOAT_TO_UBYTE(c[ACOMP]) });
}
static inline unsigned
pack_rgba_clamp_f(mesa_format f, const float c[])
{
GLubyte bytes[4];
_mesa_unclamped_float_rgba_to_ubyte(bytes, c);
return pack_rgba_i(f, bytes);
}
static inline unsigned
pack_zs_f(mesa_format f, float z, uint8_t s)
{
return pack_zs_i(f, FLOAT_TO_UINT(z), s);
}
static inline unsigned
pack_la_clamp_f(mesa_format f, float l, float a)
{
GLubyte lb, ab;
UNCLAMPED_FLOAT_TO_UBYTE(lb, l);
UNCLAMPED_FLOAT_TO_UBYTE(ab, a);
return pack_rgba_i(f, (uint8_t []) { lb, lb, lb, ab });
}
/* Integer base-2 logarithm, rounded towards zero. */
static inline unsigned
log2i(unsigned i)
{
unsigned r = 0;
if (i & 0xffff0000) {
i >>= 16;
r += 16;
}
if (i & 0x0000ff00) {
i >>= 8;
r += 8;
}
if (i & 0x000000f0) {
i >>= 4;
r += 4;
}
if (i & 0x0000000c) {
i >>= 2;
r += 2;
}
if (i & 0x00000002) {
r += 1;
}
return r;
}
static inline void
get_scissors(struct gl_framebuffer *fb, int *x, int *y, int *w, int *h)
{
*w = fb->_Xmax - fb->_Xmin;
*h = fb->_Ymax - fb->_Ymin;
*x = fb->_Xmin;
*y = (fb->Name ? fb->_Ymin :
/* Window system FBO: Flip the Y coordinate. */
fb->Height - fb->_Ymax);
}
static inline void
get_viewport_scale(struct gl_context *ctx, float a[16])
{
struct gl_viewport_attrib *vp = &ctx->ViewportArray[0];
struct gl_framebuffer *fb = ctx->DrawBuffer;
a[MAT_SX] = (float)vp->Width / 2;
if (fb->Name)
a[MAT_SY] = (float)vp->Height / 2;
else
/* Window system FBO: Flip the Y coordinate. */
a[MAT_SY] = - (float)vp->Height / 2;
a[MAT_SZ] = fb->_DepthMaxF * (vp->Far - vp->Near) / 2;
}
static inline void
get_viewport_translate(struct gl_context *ctx, float a[4])
{
struct gl_viewport_attrib *vp = &ctx->ViewportArray[0];
struct gl_framebuffer *fb = ctx->DrawBuffer;
a[0] = (float)vp->Width / 2 + vp->X;
if (fb->Name)
a[1] = (float)vp->Height / 2 + vp->Y;
else
/* Window system FBO: Flip the Y coordinate. */
a[1] = fb->Height - (float)vp->Height / 2 - vp->Y;
a[2] = fb->_DepthMaxF * (vp->Far + vp->Near) / 2;
}
static inline GLboolean
is_color_operand(int op)
{
return op == GL_SRC_COLOR || op == GL_ONE_MINUS_SRC_COLOR;
}
static inline GLboolean
is_negative_operand(int op)
{
return op == GL_ONE_MINUS_SRC_COLOR || op == GL_ONE_MINUS_SRC_ALPHA;
}
static inline GLboolean
is_texture_source(int s)
{
return s == GL_TEXTURE || (s >= GL_TEXTURE0 && s <= GL_TEXTURE31);
}
static inline struct gl_texgen *
get_texgen_coord(struct gl_fixedfunc_texture_unit *u, int i)
{
return ((struct gl_texgen *[])
{ &u->GenS, &u->GenT, &u->GenR, &u->GenQ }) [i];
}
static inline float *
get_texgen_coeff(struct gl_texgen *c)
{
if (c->Mode == GL_OBJECT_LINEAR)
return c->ObjectPlane;
else if (c->Mode == GL_EYE_LINEAR)
return c->EyePlane;
else
return NULL;
}
static inline unsigned
get_format_blocksx(mesa_format format,
unsigned x)
{
GLuint blockwidth;
GLuint blockheight;
_mesa_get_format_block_size(format, &blockwidth, &blockheight);
return (x + blockwidth - 1) / blockwidth;
}
static inline unsigned
get_format_blocksy(mesa_format format,
unsigned y)
{
GLuint blockwidth;
GLuint blockheight;
_mesa_get_format_block_size(format, &blockwidth, &blockheight);
return (y + blockheight - 1) / blockheight;
}
#endif
|
