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5564 serge 1 
/*
2 
 * Copyright (C) 2013 Rob Clark
3 
 *
4 
 * Permission is hereby granted, free of charge, to any person obtaining a
5 
 * copy of this software and associated documentation files (the "Software"),
6 
 * to deal in the Software without restriction, including without limitation
7 
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 
 * and/or sell copies of the Software, and to permit persons to whom the
9 
 * Software is furnished to do so, subject to the following conditions:
10 
 *
11 
 * The above copyright notice and this permission notice (including the next
12 
 * paragraph) shall be included in all copies or substantial portions of the
13 
 * Software.
14 
 *
15 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 
 * SOFTWARE.
22 
 *
23 
 */
24 
 
25 
#include "pipe/p_defines.h"
26 
#include "util/u_format.h"
27 
 
28 
#include "fd3_format.h"
29 
 
30 
/* Specifies the table of all the formats and their features. Also supplies
31 
 * the helpers that look up various data in those tables.
32 
 */
33 
 
34 
struct fd3_format {
35 
	enum a3xx_vtx_fmt vtx;
36 
	enum a3xx_tex_fmt tex;
37 
	enum a3xx_color_fmt rb;
38 
	enum a3xx_color_swap swap;
39 
	boolean present;
40 
};
41 
 
42 
#define RB_NONE ~0
43 
 
44 
/* vertex + texture */
45 
#define VT(pipe, fmt, rbfmt, swapfmt) \
46 
	[PIPE_FORMAT_ ## pipe] = { \
47 
		.present = 1, \
48 
		.vtx = VFMT_ ## fmt, \
49 
		.tex = TFMT_ ## fmt, \
50 
		.rb = RB_ ## rbfmt, \
51 
		.swap = swapfmt \
52 
	}
53 
 
54 
/* texture-only */
55 
#define _T(pipe, fmt, rbfmt, swapfmt) \
56 
	[PIPE_FORMAT_ ## pipe] = { \
57 
		.present = 1, \
58 
		.vtx = ~0, \
59 
		.tex = TFMT_ ## fmt, \
60 
		.rb = RB_ ## rbfmt, \
61 
		.swap = swapfmt \
62 
	}
63 
 
64 
/* vertex-only */
65 
#define V_(pipe, fmt, rbfmt, swapfmt) \
66 
	[PIPE_FORMAT_ ## pipe] = { \
67 
		.present = 1, \
68 
		.vtx = VFMT_ ## fmt, \
69 
		.tex = ~0, \
70 
		.rb = RB_ ## rbfmt, \
71 
		.swap = swapfmt \
72 
	}
73 
 
74 
static struct fd3_format formats[PIPE_FORMAT_COUNT] = {
75 
	/* 8-bit */
76 
	VT(R8_UNORM,   8_UNORM, R8_UNORM, WZYX),
77 
	VT(R8_SNORM,   8_SNORM, NONE,     WZYX),
78 
	VT(R8_UINT,    8_UINT,  R8_UINT,  WZYX),
79 
	VT(R8_SINT,    8_SINT,  R8_SINT,  WZYX),
80 
	V_(R8_USCALED, 8_UINT,  NONE,     WZYX),
81 
	V_(R8_SSCALED, 8_UINT,  NONE,     WZYX),
82 
 
83 
	_T(A8_UNORM,   8_UNORM, A8_UNORM, WZYX),
84 
	_T(L8_UNORM,   8_UNORM, R8_UNORM, WZYX),
85 
	_T(I8_UNORM,   8_UNORM, NONE,     WZYX),
86 
 
87 
	_T(A8_UINT,    8_UINT,  NONE,     WZYX),
88 
	_T(A8_SINT,    8_SINT,  NONE,     WZYX),
89 
	_T(L8_UINT,    8_UINT,  NONE,     WZYX),
90 
	_T(L8_SINT,    8_SINT,  NONE,     WZYX),
91 
	_T(I8_UINT,    8_UINT,  NONE,     WZYX),
92 
	_T(I8_SINT,    8_SINT,  NONE,     WZYX),
93 
 
94 
	_T(S8_UINT,    8_UINT,  R8_UNORM, WZYX),
95 
 
96 
	/* 16-bit */
97 
	VT(R16_UNORM,   16_UNORM, NONE,     WZYX),
98 
	VT(R16_SNORM,   16_SNORM, NONE,     WZYX),
99 
	VT(R16_UINT,    16_UINT,  R16_UINT, WZYX),
100 
	VT(R16_SINT,    16_SINT,  R16_SINT, WZYX),
101 
	V_(R16_USCALED, 16_UINT,  NONE,     WZYX),
102 
	V_(R16_SSCALED, 16_UINT,  NONE,     WZYX),
103 
	VT(R16_FLOAT,   16_FLOAT, R16_FLOAT,WZYX),
104 
 
105 
	_T(A16_UINT,    16_UINT,  NONE,     WZYX),
106 
	_T(A16_SINT,    16_SINT,  NONE,     WZYX),
107 
	_T(L16_UINT,    16_UINT,  NONE,     WZYX),
108 
	_T(L16_SINT,    16_SINT,  NONE,     WZYX),
109 
	_T(I16_UINT,    16_UINT,  NONE,     WZYX),
110 
	_T(I16_SINT,    16_SINT,  NONE,     WZYX),
111 
 
112 
	VT(R8G8_UNORM,   8_8_UNORM, R8G8_UNORM, WZYX),
113 
	VT(R8G8_SNORM,   8_8_SNORM, R8G8_SNORM, WZYX),
114 
	VT(R8G8_UINT,    8_8_UINT,  NONE,       WZYX),
115 
	VT(R8G8_SINT,    8_8_SINT,  NONE,       WZYX),
116 
	V_(R8G8_USCALED, 8_8_UINT,  NONE,       WZYX),
117 
	V_(R8G8_SSCALED, 8_8_SINT,  NONE,       WZYX),
118 
 
119 
	_T(L8A8_UINT,    8_8_UINT,  NONE,       WZYX),
120 
	_T(L8A8_SINT,    8_8_SINT,  NONE,       WZYX),
121 
 
122 
	_T(Z16_UNORM,      Z16_UNORM,     R8G8_UNORM,     WZYX),
123 
	_T(B5G6R5_UNORM,   5_6_5_UNORM,   R5G6B5_UNORM,   WXYZ),
124 
	_T(B5G5R5A1_UNORM, 5_5_5_1_UNORM, R5G5B5A1_UNORM, WXYZ),
125 
	_T(B5G5R5X1_UNORM, 5_5_5_1_UNORM, R5G5B5A1_UNORM, WXYZ),
126 
	_T(B4G4R4A4_UNORM, 4_4_4_4_UNORM, R4G4B4A4_UNORM, WXYZ),
127 
 
128 
	/* 24-bit */
129 
	V_(R8G8B8_UNORM,   8_8_8_UNORM, NONE, WZYX),
130 
	V_(R8G8B8_SNORM,   8_8_8_SNORM, NONE, WZYX),
131 
	V_(R8G8B8_UINT,    8_8_8_UINT,  NONE, WZYX),
132 
	V_(R8G8B8_SINT,    8_8_8_SINT,  NONE, WZYX),
133 
	V_(R8G8B8_USCALED, 8_8_8_UINT,  NONE, WZYX),
134 
	V_(R8G8B8_SSCALED, 8_8_8_SINT,  NONE, WZYX),
135 
 
136 
	/* 32-bit */
137 
	VT(R32_UINT,    32_UINT,  R32_UINT, WZYX),
138 
	VT(R32_SINT,    32_SINT,  R32_SINT, WZYX),
139 
	V_(R32_USCALED, 32_UINT,  NONE,     WZYX),
140 
	V_(R32_SSCALED, 32_UINT,  NONE,     WZYX),
141 
	VT(R32_FLOAT,   32_FLOAT, R32_FLOAT,WZYX),
142 
	V_(R32_FIXED,   32_FIXED, NONE,     WZYX),
143 
 
144 
	_T(A32_UINT,    32_UINT,  NONE,     WZYX),
145 
	_T(A32_SINT,    32_SINT,  NONE,     WZYX),
146 
	_T(L32_UINT,    32_UINT,  NONE,     WZYX),
147 
	_T(L32_SINT,    32_SINT,  NONE,     WZYX),
148 
	_T(I32_UINT,    32_UINT,  NONE,     WZYX),
149 
	_T(I32_SINT,    32_SINT,  NONE,     WZYX),
150 
 
151 
	VT(R16G16_UNORM,   16_16_UNORM, NONE,        WZYX),
152 
	VT(R16G16_SNORM,   16_16_SNORM, NONE,        WZYX),
153 
	VT(R16G16_UINT,    16_16_UINT,  R16G16_UINT, WZYX),
154 
	VT(R16G16_SINT,    16_16_SINT,  R16G16_SINT, WZYX),
155 
	V_(R16G16_USCALED, 16_16_UINT,  NONE,        WZYX),
156 
	V_(R16G16_SSCALED, 16_16_SINT,  NONE,        WZYX),
157 
	VT(R16G16_FLOAT,   16_16_FLOAT, R16G16_FLOAT,WZYX),
158 
 
159 
	_T(L16A16_UINT,    16_16_UINT,  NONE,        WZYX),
160 
	_T(L16A16_SINT,    16_16_SINT,  NONE,        WZYX),
161 
 
162 
	VT(R8G8B8A8_UNORM,   8_8_8_8_UNORM, R8G8B8A8_UNORM, WZYX),
163 
	_T(R8G8B8X8_UNORM,   8_8_8_8_UNORM, R8G8B8A8_UNORM, WZYX),
164 
	_T(R8G8B8A8_SRGB,    8_8_8_8_UNORM, R8G8B8A8_UNORM, WZYX),
165 
	_T(R8G8B8X8_SRGB,    8_8_8_8_UNORM, R8G8B8A8_UNORM, WZYX),
166 
	VT(R8G8B8A8_SNORM,   8_8_8_8_SNORM, R8G8B8A8_SNORM, WZYX),
167 
	VT(R8G8B8A8_UINT,    8_8_8_8_UINT,  R8G8B8A8_UINT,  WZYX),
168 
	VT(R8G8B8A8_SINT,    8_8_8_8_SINT,  R8G8B8A8_SINT,  WZYX),
169 
	V_(R8G8B8A8_USCALED, 8_8_8_8_UINT,  NONE,           WZYX),
170 
	V_(R8G8B8A8_SSCALED, 8_8_8_8_SINT,  NONE,           WZYX),
171 
 
172 
	VT(B8G8R8A8_UNORM,   8_8_8_8_UNORM, R8G8B8A8_UNORM, WXYZ),
173 
	_T(B8G8R8X8_UNORM,   8_8_8_8_UNORM, R8G8B8A8_UNORM, WXYZ),
174 
	VT(B8G8R8A8_SRGB,    8_8_8_8_UNORM, R8G8B8A8_UNORM, WXYZ),
175 
	_T(B8G8R8X8_SRGB,    8_8_8_8_UNORM, R8G8B8A8_UNORM, WXYZ),
176 
 
177 
	VT(A8B8G8R8_UNORM,   8_8_8_8_UNORM, R8G8B8A8_UNORM, XYZW),
178 
	_T(X8B8G8R8_UNORM,   8_8_8_8_UNORM, R8G8B8A8_UNORM, XYZW),
179 
	_T(A8B8G8R8_SRGB,    8_8_8_8_UNORM, R8G8B8A8_UNORM, XYZW),
180 
	_T(X8B8G8R8_SRGB,    8_8_8_8_UNORM, R8G8B8A8_UNORM, XYZW),
181 
 
182 
	VT(A8R8G8B8_UNORM,   8_8_8_8_UNORM, R8G8B8A8_UNORM, ZYXW),
183 
	_T(X8R8G8B8_UNORM,   8_8_8_8_UNORM, R8G8B8A8_UNORM, ZYXW),
184 
	_T(A8R8G8B8_SRGB,    8_8_8_8_UNORM, R8G8B8A8_UNORM, ZYXW),
185 
	_T(X8R8G8B8_SRGB,    8_8_8_8_UNORM, R8G8B8A8_UNORM, ZYXW),
186 
 
187 
	VT(R10G10B10A2_UNORM,   10_10_10_2_UNORM, R10G10B10A2_UNORM, WZYX),
188 
	VT(B10G10R10A2_UNORM,   10_10_10_2_UNORM, R10G10B10A2_UNORM, WXYZ),
189 
	_T(B10G10R10X2_UNORM,   10_10_10_2_UNORM, R10G10B10A2_UNORM, WXYZ),
190 
	V_(R10G10B10A2_SNORM,   10_10_10_2_SNORM, NONE,              WZYX),
191 
	V_(R10G10B10A2_UINT,    10_10_10_2_UINT,  NONE,              WZYX),
192 
	V_(R10G10B10A2_USCALED, 10_10_10_2_UINT,  NONE,              WZYX),
193 
	V_(R10G10B10A2_SSCALED, 10_10_10_2_SINT,  NONE,              WZYX),
194 
 
195 
	_T(R11G11B10_FLOAT, 11_11_10_FLOAT, R11G11B10_FLOAT, WZYX),
196 
	_T(R9G9B9E5_FLOAT,  9_9_9_E5_FLOAT, NONE,            WZYX),
197 
 
198 
	_T(Z24X8_UNORM,       X8Z24_UNORM, R8G8B8A8_UNORM, WZYX),
199 
	_T(Z24_UNORM_S8_UINT, X8Z24_UNORM, R8G8B8A8_UNORM, WZYX),
200 
	_T(Z32_FLOAT,         Z32_FLOAT,   R8G8B8A8_UNORM, WZYX),
201 
	_T(Z32_FLOAT_S8X24_UINT, Z32_FLOAT,R8G8B8A8_UNORM, WZYX),
202 
 
203 
	/* 48-bit */
204 
	V_(R16G16B16_UNORM,   16_16_16_UNORM, NONE, WZYX),
205 
	V_(R16G16B16_SNORM,   16_16_16_SNORM, NONE, WZYX),
206 
	V_(R16G16B16_UINT,    16_16_16_UINT,  NONE, WZYX),
207 
	V_(R16G16B16_SINT,    16_16_16_SINT,  NONE, WZYX),
208 
	V_(R16G16B16_USCALED, 16_16_16_UINT,  NONE, WZYX),
209 
	V_(R16G16B16_SSCALED, 16_16_16_SINT,  NONE, WZYX),
210 
	V_(R16G16B16_FLOAT,   16_16_16_FLOAT, NONE, WZYX),
211 
 
212 
	/* 64-bit */
213 
	VT(R16G16B16A16_UNORM,   16_16_16_16_UNORM, NONE,               WZYX),
214 
	VT(R16G16B16A16_SNORM,   16_16_16_16_SNORM, NONE,               WZYX),
215 
	VT(R16G16B16A16_UINT,    16_16_16_16_UINT,  R16G16B16A16_UINT,  WZYX),
216 
	_T(R16G16B16X16_UINT,    16_16_16_16_UINT,  R16G16B16A16_UINT,  WZYX),
217 
	VT(R16G16B16A16_SINT,    16_16_16_16_SINT,  R16G16B16A16_SINT,  WZYX),
218 
	_T(R16G16B16X16_SINT,    16_16_16_16_SINT,  R16G16B16A16_SINT,  WZYX),
219 
	V_(R16G16B16A16_USCALED, 16_16_16_16_UINT,  NONE,               WZYX),
220 
	V_(R16G16B16A16_SSCALED, 16_16_16_16_SINT,  NONE,               WZYX),
221 
	VT(R16G16B16A16_FLOAT,   16_16_16_16_FLOAT, R16G16B16A16_FLOAT, WZYX),
222 
	_T(R16G16B16X16_FLOAT,   16_16_16_16_FLOAT, R16G16B16A16_FLOAT, WZYX),
223 
 
224 
	VT(R32G32_UINT,    32_32_UINT,  R32G32_UINT, WZYX),
225 
	VT(R32G32_SINT,    32_32_SINT,  R32G32_SINT, WZYX),
226 
	V_(R32G32_USCALED, 32_32_UINT,  NONE,        WZYX),
227 
	V_(R32G32_SSCALED, 32_32_SINT,  NONE,        WZYX),
228 
	VT(R32G32_FLOAT,   32_32_FLOAT, R32G32_FLOAT,WZYX),
229 
	V_(R32G32_FIXED,   32_32_FIXED, NONE,        WZYX),
230 
 
231 
	_T(L32A32_UINT,    32_32_UINT,  NONE,        WZYX),
232 
	_T(L32A32_SINT,    32_32_SINT,  NONE,        WZYX),
233 
 
234 
	/* 96-bit */
235 
	V_(R32G32B32_UINT,    32_32_32_UINT,  NONE, WZYX),
236 
	V_(R32G32B32_SINT,    32_32_32_SINT,  NONE, WZYX),
237 
	V_(R32G32B32_USCALED, 32_32_32_UINT,  NONE, WZYX),
238 
	V_(R32G32B32_SSCALED, 32_32_32_SINT,  NONE, WZYX),
239 
	V_(R32G32B32_FLOAT,   32_32_32_FLOAT, NONE, WZYX),
240 
	V_(R32G32B32_FIXED,   32_32_32_FIXED, NONE, WZYX),
241 
 
242 
	/* 128-bit */
243 
	VT(R32G32B32A32_UINT,    32_32_32_32_UINT,  R32G32B32A32_UINT,  WZYX),
244 
	_T(R32G32B32X32_UINT,    32_32_32_32_UINT,  R32G32B32A32_UINT,  WZYX),
245 
	VT(R32G32B32A32_SINT,    32_32_32_32_SINT,  R32G32B32A32_SINT,  WZYX),
246 
	_T(R32G32B32X32_SINT,    32_32_32_32_SINT,  R32G32B32A32_SINT,  WZYX),
247 
	V_(R32G32B32A32_USCALED, 32_32_32_32_UINT,  NONE,               WZYX),
248 
	V_(R32G32B32A32_SSCALED, 32_32_32_32_SINT,  NONE,               WZYX),
249 
	VT(R32G32B32A32_FLOAT,   32_32_32_32_FLOAT, R32G32B32A32_FLOAT, WZYX),
250 
	_T(R32G32B32X32_FLOAT,   32_32_32_32_FLOAT, R32G32B32A32_FLOAT, WZYX),
251 
	V_(R32G32B32A32_FIXED,   32_32_32_32_FIXED, NONE,               WZYX),
252 
 
253 
	/* compressed */
254 
	_T(ETC1_RGB8, ETC1, NONE, WZYX),
255 
	_T(ETC2_RGB8, ETC2_RGB8, NONE, WZYX),
256 
	_T(ETC2_SRGB8, ETC2_RGB8, NONE, WZYX),
257 
	_T(ETC2_RGB8A1, ETC2_RGB8A1, NONE, WZYX),
258 
	_T(ETC2_SRGB8A1, ETC2_RGB8A1, NONE, WZYX),
259 
	_T(ETC2_RGBA8, ETC2_RGBA8, NONE, WZYX),
260 
	_T(ETC2_SRGBA8, ETC2_RGBA8, NONE, WZYX),
261 
	_T(ETC2_R11_UNORM, ETC2_R11_UNORM, NONE, WZYX),
262 
	_T(ETC2_R11_SNORM, ETC2_R11_SNORM, NONE, WZYX),
263 
	_T(ETC2_RG11_UNORM, ETC2_RG11_UNORM, NONE, WZYX),
264 
	_T(ETC2_RG11_SNORM, ETC2_RG11_SNORM, NONE, WZYX),
265 
};
266 
 
267 
enum a3xx_vtx_fmt
268 
fd3_pipe2vtx(enum pipe_format format)
269 
{
270 
	if (!formats[format].present)
271 
		return ~0;
272 
	return formats[format].vtx;
273 
}
274 
 
275 
enum a3xx_tex_fmt
276 
fd3_pipe2tex(enum pipe_format format)
277 
{
278 
	if (!formats[format].present)
279 
		return ~0;
280 
	return formats[format].tex;
281 
}
282 
 
283 
enum a3xx_color_fmt
284 
fd3_pipe2color(enum pipe_format format)
285 
{
286 
	if (!formats[format].present)
287 
		return ~0;
288 
	return formats[format].rb;
289 
}
290 
 
291 
enum a3xx_color_swap
292 
fd3_pipe2swap(enum pipe_format format)
293 
{
294 
	if (!formats[format].present)
295 
		return WZYX;
296 
	return formats[format].swap;
297 
}
298 
 
299 
enum a3xx_tex_fetchsize
300 
fd3_pipe2fetchsize(enum pipe_format format)
301 
{
302 
	if (format == PIPE_FORMAT_Z32_FLOAT_S8X24_UINT)
303 
		format = PIPE_FORMAT_Z32_FLOAT;
304 
	switch (util_format_get_blocksizebits(format)) {
305 
	case 8: return TFETCH_1_BYTE;
306 
	case 16: return TFETCH_2_BYTE;
307 
	case 32: return TFETCH_4_BYTE;
308 
	case 64: return TFETCH_8_BYTE;
309 
	case 128: return TFETCH_16_BYTE;
310 
	default:
311 
		debug_printf("Unknown block size for format %s: %d\n",
312 
					 util_format_name(format),
313 
					 util_format_get_blocksizebits(format));
314 
		return TFETCH_DISABLE;
315 
	}
316 
}
317 
 
318 
/* we need to special case a bit the depth/stencil restore, because we are
319 
 * using the texture sampler to blit into the depth/stencil buffer, *not*
320 
 * into a color buffer.  Otherwise fd3_tex_swiz() will do the wrong thing,
321 
 * as it is assuming that you are sampling into normal render target..
322 
 */
323 
enum pipe_format
324 
fd3_gmem_restore_format(enum pipe_format format)
325 
{
326 
	switch (format) {
327 
	case PIPE_FORMAT_Z24X8_UNORM:
328 
	case PIPE_FORMAT_Z24_UNORM_S8_UINT:
329 
		return PIPE_FORMAT_R8G8B8A8_UNORM;
330 
	case PIPE_FORMAT_Z16_UNORM:
331 
		return PIPE_FORMAT_R8G8_UNORM;
332 
	case PIPE_FORMAT_S8_UINT:
333 
		return PIPE_FORMAT_R8_UNORM;
334 
	default:
335 
		return format;
336 
	}
337 
}
338 
 
339 
enum a3xx_color_fmt
340 
fd3_fs_output_format(enum pipe_format format)
341 
{
342 
	if (util_format_is_srgb(format))
343 
		return RB_R16G16B16A16_FLOAT;
344 
	switch (format) {
345 
	case PIPE_FORMAT_R16_FLOAT:
346 
	case PIPE_FORMAT_R16G16_FLOAT:
347 
	case PIPE_FORMAT_R11G11B10_FLOAT:
348 
		return RB_R16G16B16A16_FLOAT;
349 
	default:
350 
		return fd3_pipe2color(format);
351 
	}
352 
}
353 
 
354 
static inline enum a3xx_tex_swiz
355 
tex_swiz(unsigned swiz)
356 
{
357 
	switch (swiz) {
358 
	default:
359 
	case PIPE_SWIZZLE_RED:   return A3XX_TEX_X;
360 
	case PIPE_SWIZZLE_GREEN: return A3XX_TEX_Y;
361 
	case PIPE_SWIZZLE_BLUE:  return A3XX_TEX_Z;
362 
	case PIPE_SWIZZLE_ALPHA: return A3XX_TEX_W;
363 
	case PIPE_SWIZZLE_ZERO:  return A3XX_TEX_ZERO;
364 
	case PIPE_SWIZZLE_ONE:   return A3XX_TEX_ONE;
365 
	}
366 
}
367 
 
368 
uint32_t
369 
fd3_tex_swiz(enum pipe_format format, unsigned swizzle_r, unsigned swizzle_g,
370 
		unsigned swizzle_b, unsigned swizzle_a)
371 
{
372 
	const struct util_format_description *desc =
373 
			util_format_description(format);
374 
	unsigned char swiz[4] = {
375 
			swizzle_r, swizzle_g, swizzle_b, swizzle_a,
376 
	}, rswiz[4];
377 
 
378 
	util_format_compose_swizzles(desc->swizzle, swiz, rswiz);
379 
 
380 
	return A3XX_TEX_CONST_0_SWIZ_X(tex_swiz(rswiz[0])) |
381 
			A3XX_TEX_CONST_0_SWIZ_Y(tex_swiz(rswiz[1])) |
382 
			A3XX_TEX_CONST_0_SWIZ_Z(tex_swiz(rswiz[2])) |
383 
			A3XX_TEX_CONST_0_SWIZ_W(tex_swiz(rswiz[3]));
384 
}