• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1 /*
2  * Copyright (C) 2013 Rob Clark <robclark@freedesktop.org>
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_(B10G10R10A2_SNORM,   10_10_10_2_SNORM, NONE,              WXYZ),
192 	V_(R10G10B10A2_UINT,    10_10_10_2_UINT,  NONE,              WZYX),
193 	V_(B10G10R10A2_UINT,    10_10_10_2_UINT,  NONE,              WXYZ),
194 	V_(R10G10B10A2_USCALED, 10_10_10_2_UINT,  NONE,              WZYX),
195 	V_(B10G10R10A2_USCALED, 10_10_10_2_UINT,  NONE,              WXYZ),
196 	V_(R10G10B10A2_SSCALED, 10_10_10_2_SINT,  NONE,              WZYX),
197 	V_(B10G10R10A2_SSCALED, 10_10_10_2_SINT,  NONE,              WXYZ),
198 
199 	_T(R11G11B10_FLOAT, 11_11_10_FLOAT, R11G11B10_FLOAT, WZYX),
200 	_T(R9G9B9E5_FLOAT,  9_9_9_E5_FLOAT, NONE,            WZYX),
201 
202 	_T(Z24X8_UNORM,       X8Z24_UNORM, R8G8B8A8_UNORM, WZYX),
203 	_T(Z24_UNORM_S8_UINT, X8Z24_UNORM, R8G8B8A8_UNORM, WZYX),
204 	_T(Z32_FLOAT,         Z32_FLOAT,   R8G8B8A8_UNORM, WZYX),
205 	_T(Z32_FLOAT_S8X24_UINT, Z32_FLOAT,R8G8B8A8_UNORM, WZYX),
206 
207 	/* 48-bit */
208 	V_(R16G16B16_UNORM,   16_16_16_UNORM, NONE, WZYX),
209 	V_(R16G16B16_SNORM,   16_16_16_SNORM, NONE, WZYX),
210 	V_(R16G16B16_UINT,    16_16_16_UINT,  NONE, WZYX),
211 	V_(R16G16B16_SINT,    16_16_16_SINT,  NONE, WZYX),
212 	V_(R16G16B16_USCALED, 16_16_16_UINT,  NONE, WZYX),
213 	V_(R16G16B16_SSCALED, 16_16_16_SINT,  NONE, WZYX),
214 	V_(R16G16B16_FLOAT,   16_16_16_FLOAT, NONE, WZYX),
215 
216 	/* 64-bit */
217 	VT(R16G16B16A16_UNORM,   16_16_16_16_UNORM, NONE,               WZYX),
218 	VT(R16G16B16A16_SNORM,   16_16_16_16_SNORM, NONE,               WZYX),
219 	VT(R16G16B16A16_UINT,    16_16_16_16_UINT,  R16G16B16A16_UINT,  WZYX),
220 	_T(R16G16B16X16_UINT,    16_16_16_16_UINT,  R16G16B16A16_UINT,  WZYX),
221 	VT(R16G16B16A16_SINT,    16_16_16_16_SINT,  R16G16B16A16_SINT,  WZYX),
222 	_T(R16G16B16X16_SINT,    16_16_16_16_SINT,  R16G16B16A16_SINT,  WZYX),
223 	V_(R16G16B16A16_USCALED, 16_16_16_16_UINT,  NONE,               WZYX),
224 	V_(R16G16B16A16_SSCALED, 16_16_16_16_SINT,  NONE,               WZYX),
225 	VT(R16G16B16A16_FLOAT,   16_16_16_16_FLOAT, R16G16B16A16_FLOAT, WZYX),
226 	_T(R16G16B16X16_FLOAT,   16_16_16_16_FLOAT, R16G16B16A16_FLOAT, WZYX),
227 
228 	VT(R32G32_UINT,    32_32_UINT,  R32G32_UINT, WZYX),
229 	VT(R32G32_SINT,    32_32_SINT,  R32G32_SINT, WZYX),
230 	V_(R32G32_USCALED, 32_32_UINT,  NONE,        WZYX),
231 	V_(R32G32_SSCALED, 32_32_SINT,  NONE,        WZYX),
232 	VT(R32G32_FLOAT,   32_32_FLOAT, R32G32_FLOAT,WZYX),
233 	V_(R32G32_FIXED,   32_32_FIXED, NONE,        WZYX),
234 
235 	_T(L32A32_UINT,    32_32_UINT,  NONE,        WZYX),
236 	_T(L32A32_SINT,    32_32_SINT,  NONE,        WZYX),
237 
238 	/* 96-bit */
239 	V_(R32G32B32_UINT,    32_32_32_UINT,  NONE, WZYX),
240 	V_(R32G32B32_SINT,    32_32_32_SINT,  NONE, WZYX),
241 	V_(R32G32B32_USCALED, 32_32_32_UINT,  NONE, WZYX),
242 	V_(R32G32B32_SSCALED, 32_32_32_SINT,  NONE, WZYX),
243 	V_(R32G32B32_FLOAT,   32_32_32_FLOAT, NONE, WZYX),
244 	V_(R32G32B32_FIXED,   32_32_32_FIXED, NONE, WZYX),
245 
246 	/* 128-bit */
247 	VT(R32G32B32A32_UINT,    32_32_32_32_UINT,  R32G32B32A32_UINT,  WZYX),
248 	_T(R32G32B32X32_UINT,    32_32_32_32_UINT,  R32G32B32A32_UINT,  WZYX),
249 	VT(R32G32B32A32_SINT,    32_32_32_32_SINT,  R32G32B32A32_SINT,  WZYX),
250 	_T(R32G32B32X32_SINT,    32_32_32_32_SINT,  R32G32B32A32_SINT,  WZYX),
251 	V_(R32G32B32A32_USCALED, 32_32_32_32_UINT,  NONE,               WZYX),
252 	V_(R32G32B32A32_SSCALED, 32_32_32_32_SINT,  NONE,               WZYX),
253 	VT(R32G32B32A32_FLOAT,   32_32_32_32_FLOAT, R32G32B32A32_FLOAT, WZYX),
254 	_T(R32G32B32X32_FLOAT,   32_32_32_32_FLOAT, R32G32B32A32_FLOAT, WZYX),
255 	V_(R32G32B32A32_FIXED,   32_32_32_32_FIXED, NONE,               WZYX),
256 
257 	/* compressed */
258 	_T(ETC1_RGB8, ETC1, NONE, WZYX),
259 	_T(ETC2_RGB8, ETC2_RGB8, NONE, WZYX),
260 	_T(ETC2_SRGB8, ETC2_RGB8, NONE, WZYX),
261 	_T(ETC2_RGB8A1, ETC2_RGB8A1, NONE, WZYX),
262 	_T(ETC2_SRGB8A1, ETC2_RGB8A1, NONE, WZYX),
263 	_T(ETC2_RGBA8, ETC2_RGBA8, NONE, WZYX),
264 	_T(ETC2_SRGBA8, ETC2_RGBA8, NONE, WZYX),
265 	_T(ETC2_R11_UNORM, ETC2_R11_UNORM, NONE, WZYX),
266 	_T(ETC2_R11_SNORM, ETC2_R11_SNORM, NONE, WZYX),
267 	_T(ETC2_RG11_UNORM, ETC2_RG11_UNORM, NONE, WZYX),
268 	_T(ETC2_RG11_SNORM, ETC2_RG11_SNORM, NONE, WZYX),
269 
270 	_T(DXT1_RGB,   DXT1, NONE, WZYX),
271 	_T(DXT1_SRGB,  DXT1, NONE, WZYX),
272 	_T(DXT1_RGBA,  DXT1, NONE, WZYX),
273 	_T(DXT1_SRGBA, DXT1, NONE, WZYX),
274 	_T(DXT3_RGBA,  DXT3, NONE, WZYX),
275 	_T(DXT3_SRGBA, DXT3, NONE, WZYX),
276 	_T(DXT5_RGBA,  DXT5, NONE, WZYX),
277 	_T(DXT5_SRGBA, DXT5, NONE, WZYX),
278 
279 	/* faked */
280 	_T(RGTC1_UNORM, 8_8_8_8_UNORM, NONE, WZYX),
281 	_T(RGTC1_SNORM, 8_8_8_8_SNORM, NONE, WZYX),
282 	_T(RGTC2_UNORM, 8_8_8_8_UNORM, NONE, WZYX),
283 	_T(RGTC2_SNORM, 8_8_8_8_SNORM, NONE, WZYX),
284 	_T(LATC1_UNORM, 8_8_8_8_UNORM, NONE, WZYX),
285 	_T(LATC1_SNORM, 8_8_8_8_SNORM, NONE, WZYX),
286 	_T(LATC2_UNORM, 8_8_8_8_UNORM, NONE, WZYX),
287 	_T(LATC2_SNORM, 8_8_8_8_SNORM, NONE, WZYX),
288 };
289 
290 enum a3xx_vtx_fmt
fd3_pipe2vtx(enum pipe_format format)291 fd3_pipe2vtx(enum pipe_format format)
292 {
293 	if (!formats[format].present)
294 		return ~0;
295 	return formats[format].vtx;
296 }
297 
298 enum a3xx_tex_fmt
fd3_pipe2tex(enum pipe_format format)299 fd3_pipe2tex(enum pipe_format format)
300 {
301 	if (!formats[format].present)
302 		return ~0;
303 	return formats[format].tex;
304 }
305 
306 enum a3xx_color_fmt
fd3_pipe2color(enum pipe_format format)307 fd3_pipe2color(enum pipe_format format)
308 {
309 	if (!formats[format].present)
310 		return ~0;
311 	return formats[format].rb;
312 }
313 
314 enum a3xx_color_swap
fd3_pipe2swap(enum pipe_format format)315 fd3_pipe2swap(enum pipe_format format)
316 {
317 	if (!formats[format].present)
318 		return WZYX;
319 	return formats[format].swap;
320 }
321 
322 enum a3xx_tex_fetchsize
fd3_pipe2fetchsize(enum pipe_format format)323 fd3_pipe2fetchsize(enum pipe_format format)
324 {
325 	if (format == PIPE_FORMAT_Z32_FLOAT_S8X24_UINT)
326 		format = PIPE_FORMAT_Z32_FLOAT;
327 	else if (util_format_description(format)->layout == UTIL_FORMAT_LAYOUT_RGTC)
328 		format = PIPE_FORMAT_R8G8B8A8_UNORM;
329 	switch (util_format_get_blocksizebits(format) / util_format_get_blockwidth(format)) {
330 	case 8: return TFETCH_1_BYTE;
331 	case 16: return TFETCH_2_BYTE;
332 	case 32: return TFETCH_4_BYTE;
333 	case 64: return TFETCH_8_BYTE;
334 	case 128: return TFETCH_16_BYTE;
335 	default:
336 		debug_printf("Unknown block size for format %s: %d\n",
337 					 util_format_name(format),
338 					 util_format_get_blocksizebits(format));
339 		return TFETCH_DISABLE;
340 	}
341 }
342 
343 unsigned
fd3_pipe2nblocksx(enum pipe_format format,unsigned width)344 fd3_pipe2nblocksx(enum pipe_format format, unsigned width)
345 {
346 	if (util_format_description(format)->layout == UTIL_FORMAT_LAYOUT_RGTC)
347 		format = PIPE_FORMAT_R8G8B8A8_UNORM;
348 	return util_format_get_nblocksx(format, width);
349 }
350 
351 enum a3xx_color_fmt
fd3_fs_output_format(enum pipe_format format)352 fd3_fs_output_format(enum pipe_format format)
353 {
354 	if (util_format_is_srgb(format))
355 		return RB_R16G16B16A16_FLOAT;
356 	switch (format) {
357 	case PIPE_FORMAT_R16_FLOAT:
358 	case PIPE_FORMAT_R16G16_FLOAT:
359 	case PIPE_FORMAT_R11G11B10_FLOAT:
360 		return RB_R16G16B16A16_FLOAT;
361 	case PIPE_FORMAT_L8_UNORM:
362 		return RB_R8G8B8A8_UNORM;
363 	default:
364 		return fd3_pipe2color(format);
365 	}
366 }
367 
368 static inline enum a3xx_tex_swiz
tex_swiz(unsigned swiz)369 tex_swiz(unsigned swiz)
370 {
371 	switch (swiz) {
372 	default:
373 	case PIPE_SWIZZLE_X: return A3XX_TEX_X;
374 	case PIPE_SWIZZLE_Y: return A3XX_TEX_Y;
375 	case PIPE_SWIZZLE_Z: return A3XX_TEX_Z;
376 	case PIPE_SWIZZLE_W: return A3XX_TEX_W;
377 	case PIPE_SWIZZLE_0: return A3XX_TEX_ZERO;
378 	case PIPE_SWIZZLE_1: return A3XX_TEX_ONE;
379 	}
380 }
381 
382 uint32_t
fd3_tex_swiz(enum pipe_format format,unsigned swizzle_r,unsigned swizzle_g,unsigned swizzle_b,unsigned swizzle_a)383 fd3_tex_swiz(enum pipe_format format, unsigned swizzle_r, unsigned swizzle_g,
384 		unsigned swizzle_b, unsigned swizzle_a)
385 {
386 	const struct util_format_description *desc =
387 			util_format_description(format);
388 	unsigned char swiz[4] = {
389 			swizzle_r, swizzle_g, swizzle_b, swizzle_a,
390 	}, rswiz[4];
391 
392 	util_format_compose_swizzles(desc->swizzle, swiz, rswiz);
393 
394 	return A3XX_TEX_CONST_0_SWIZ_X(tex_swiz(rswiz[0])) |
395 			A3XX_TEX_CONST_0_SWIZ_Y(tex_swiz(rswiz[1])) |
396 			A3XX_TEX_CONST_0_SWIZ_Z(tex_swiz(rswiz[2])) |
397 			A3XX_TEX_CONST_0_SWIZ_W(tex_swiz(rswiz[3]));
398 }
399