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1 /*
2  * Copyright (C) 2016 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  * Authors:
24  *    Rob Clark <robclark@freedesktop.org>
25  */
26 
27 #include "pipe/p_defines.h"
28 #include "util/u_format.h"
29 
30 #include "fd5_format.h"
31 
32 
33 /* Specifies the table of all the formats and their features. Also supplies
34  * the helpers that look up various data in those tables.
35  */
36 
37 struct fd5_format {
38 	enum a5xx_vtx_fmt vtx;
39 	enum a5xx_tex_fmt tex;
40 	enum a5xx_color_fmt rb;
41 	enum a3xx_color_swap swap;
42 	boolean present;
43 };
44 
45 #define RB5_NONE ~0
46 
47 /* vertex + texture */
48 #define VT(pipe, fmt, rbfmt, swapfmt) \
49 	[PIPE_FORMAT_ ## pipe] = { \
50 		.present = 1, \
51 		.vtx = VFMT5_ ## fmt, \
52 		.tex = TFMT5_ ## fmt, \
53 		.rb = RB5_ ## rbfmt, \
54 		.swap = swapfmt \
55 	}
56 
57 /* texture-only */
58 #define _T(pipe, fmt, rbfmt, swapfmt) \
59 	[PIPE_FORMAT_ ## pipe] = { \
60 		.present = 1, \
61 		.vtx = ~0, \
62 		.tex = TFMT5_ ## fmt, \
63 		.rb = RB5_ ## rbfmt, \
64 		.swap = swapfmt \
65 	}
66 
67 /* vertex-only */
68 #define V_(pipe, fmt, rbfmt, swapfmt) \
69 	[PIPE_FORMAT_ ## pipe] = { \
70 		.present = 1, \
71 		.vtx = VFMT5_ ## fmt, \
72 		.tex = ~0, \
73 		.rb = RB5_ ## rbfmt, \
74 		.swap = swapfmt \
75 	}
76 
77 static struct fd5_format formats[PIPE_FORMAT_COUNT] = {
78 	/* for blitting, treat PIPE_FORMAT_NONE as 8bit R8: */
79 	_T(R8_UINT,    8_UINT,  R8_UINT,  WZYX),
80 
81 	/* 8-bit */
82 	VT(R8_UNORM,   8_UNORM, R8_UNORM, WZYX),
83 	VT(R8_SNORM,   8_SNORM, R8_SNORM, WZYX),
84 	VT(R8_UINT,    8_UINT,  R8_UINT,  WZYX),
85 	VT(R8_SINT,    8_SINT,  R8_SINT,  WZYX),
86 	V_(R8_USCALED, 8_UINT,  NONE,     WZYX),
87 	V_(R8_SSCALED, 8_UINT,  NONE,     WZYX),
88 
89 	_T(A8_UNORM,   8_UNORM, A8_UNORM, WZYX),
90 	_T(L8_UNORM,   8_UNORM, R8_UNORM, WZYX),
91 	_T(I8_UNORM,   8_UNORM, NONE,     WZYX),
92 
93 	_T(A8_UINT,    8_UINT,  NONE,     WZYX),
94 	_T(A8_SINT,    8_SINT,  NONE,     WZYX),
95 	_T(L8_UINT,    8_UINT,  NONE,     WZYX),
96 	_T(L8_SINT,    8_SINT,  NONE,     WZYX),
97 	_T(I8_UINT,    8_UINT,  NONE,     WZYX),
98 	_T(I8_SINT,    8_SINT,  NONE,     WZYX),
99 
100 	_T(S8_UINT,    8_UINT,  R8_UNORM, WZYX),
101 
102 	/* 16-bit */
103 	VT(R16_UNORM,   16_UNORM, R16_UNORM, WZYX),
104 	VT(R16_SNORM,   16_SNORM, R16_SNORM, WZYX),
105 	VT(R16_UINT,    16_UINT,  R16_UINT,  WZYX),
106 	VT(R16_SINT,    16_SINT,  R16_SINT,  WZYX),
107 	V_(R16_USCALED, 16_UINT,  NONE,      WZYX),
108 	V_(R16_SSCALED, 16_UINT,  NONE,      WZYX),
109 	VT(R16_FLOAT,   16_FLOAT, R16_FLOAT, WZYX),
110 	_T(Z16_UNORM,   16_UNORM, R16_UNORM, WZYX),
111 
112 	_T(A16_UNORM,   16_UNORM, NONE,      WZYX),
113 	_T(A16_SNORM,   16_SNORM, NONE,      WZYX),
114 	_T(A16_UINT,    16_UINT,  NONE,      WZYX),
115 	_T(A16_SINT,    16_SINT,  NONE,      WZYX),
116 	_T(L16_UNORM,   16_UNORM, NONE,      WZYX),
117 	_T(L16_SNORM,   16_SNORM, NONE,      WZYX),
118 	_T(L16_UINT,    16_UINT,  NONE,      WZYX),
119 	_T(L16_SINT,    16_SINT,  NONE,      WZYX),
120 	_T(I16_UNORM,   16_UNORM, NONE,      WZYX),
121 	_T(I16_SNORM,   16_SNORM, NONE,      WZYX),
122 	_T(I16_UINT,    16_UINT,  NONE,      WZYX),
123 	_T(I16_SINT,    16_SINT,  NONE,      WZYX),
124 
125 	VT(R8G8_UNORM,   8_8_UNORM, R8G8_UNORM, WZYX),
126 	VT(R8G8_SNORM,   8_8_SNORM, R8G8_SNORM, WZYX),
127 	VT(R8G8_UINT,    8_8_UINT,  R8G8_UINT,  WZYX),
128 	VT(R8G8_SINT,    8_8_SINT,  R8G8_SINT,  WZYX),
129 	V_(R8G8_USCALED, 8_8_UINT,  NONE,       WZYX),
130 	V_(R8G8_SSCALED, 8_8_SINT,  NONE,       WZYX),
131 
132 	_T(L8A8_UINT,    8_8_UINT,  NONE,       WZYX),
133 	_T(L8A8_SINT,    8_8_SINT,  NONE,       WZYX),
134 
135 	_T(B5G6R5_UNORM,   5_6_5_UNORM,   R5G6B5_UNORM,   WXYZ),
136 	_T(B5G5R5A1_UNORM, 5_5_5_1_UNORM, R5G5B5A1_UNORM, WXYZ),
137 	_T(B5G5R5X1_UNORM, 5_5_5_1_UNORM, R5G5B5A1_UNORM, WXYZ),
138 	_T(B4G4R4A4_UNORM, 4_4_4_4_UNORM, R4G4B4A4_UNORM, WXYZ),
139 
140 	/* 24-bit */
141 	V_(R8G8B8_UNORM,   8_8_8_UNORM, NONE, WZYX),
142 	V_(R8G8B8_SNORM,   8_8_8_SNORM, NONE, WZYX),
143 	V_(R8G8B8_UINT,    8_8_8_UINT,  NONE, WZYX),
144 	V_(R8G8B8_SINT,    8_8_8_SINT,  NONE, WZYX),
145 	V_(R8G8B8_USCALED, 8_8_8_UINT,  NONE, WZYX),
146 	V_(R8G8B8_SSCALED, 8_8_8_SINT,  NONE, WZYX),
147 
148 	/* 32-bit */
149 	VT(R32_UINT,    32_UINT,  R32_UINT, WZYX),
150 	VT(R32_SINT,    32_SINT,  R32_SINT, WZYX),
151 	V_(R32_USCALED, 32_UINT,  NONE,     WZYX),
152 	V_(R32_SSCALED, 32_UINT,  NONE,     WZYX),
153 	VT(R32_FLOAT,   32_FLOAT, R32_FLOAT,WZYX),
154 	V_(R32_FIXED,   32_FIXED, NONE,     WZYX),
155 
156 	_T(A32_UINT,    32_UINT,  NONE,     WZYX),
157 	_T(A32_SINT,    32_SINT,  NONE,     WZYX),
158 	_T(L32_UINT,    32_UINT,  NONE,     WZYX),
159 	_T(L32_SINT,    32_SINT,  NONE,     WZYX),
160 	_T(I32_UINT,    32_UINT,  NONE,     WZYX),
161 	_T(I32_SINT,    32_SINT,  NONE,     WZYX),
162 
163 	VT(R16G16_UNORM,   16_16_UNORM, R16G16_UNORM, WZYX),
164 	VT(R16G16_SNORM,   16_16_SNORM, R16G16_SNORM, WZYX),
165 	VT(R16G16_UINT,    16_16_UINT,  R16G16_UINT,  WZYX),
166 	VT(R16G16_SINT,    16_16_SINT,  R16G16_SINT,  WZYX),
167 	VT(R16G16_USCALED, 16_16_UINT,  NONE,         WZYX),
168 	VT(R16G16_SSCALED, 16_16_SINT,  NONE,         WZYX),
169 	VT(R16G16_FLOAT,   16_16_FLOAT, R16G16_FLOAT, WZYX),
170 
171 	_T(L16A16_UNORM,   16_16_UNORM, NONE,         WZYX),
172 	_T(L16A16_SNORM,   16_16_SNORM, NONE,         WZYX),
173 	_T(L16A16_UINT,    16_16_UINT,  NONE,         WZYX),
174 	_T(L16A16_SINT,    16_16_SINT,  NONE,         WZYX),
175 
176 	VT(R8G8B8A8_UNORM,   8_8_8_8_UNORM, R8G8B8A8_UNORM, WZYX),
177 	_T(R8G8B8X8_UNORM,   8_8_8_8_UNORM, R8G8B8A8_UNORM, WZYX),
178 	_T(R8G8B8A8_SRGB,    8_8_8_8_UNORM, R8G8B8A8_UNORM, WZYX),
179 	_T(R8G8B8X8_SRGB,    8_8_8_8_UNORM, R8G8B8A8_UNORM, WZYX),
180 	VT(R8G8B8A8_SNORM,   8_8_8_8_SNORM, R8G8B8A8_SNORM, WZYX),
181 	VT(R8G8B8A8_UINT,    8_8_8_8_UINT,  R8G8B8A8_UINT,  WZYX),
182 	VT(R8G8B8A8_SINT,    8_8_8_8_SINT,  R8G8B8A8_SINT,  WZYX),
183 	V_(R8G8B8A8_USCALED, 8_8_8_8_UINT,  NONE,           WZYX),
184 	V_(R8G8B8A8_SSCALED, 8_8_8_8_SINT,  NONE,           WZYX),
185 
186 	VT(B8G8R8A8_UNORM,   8_8_8_8_UNORM, R8G8B8A8_UNORM, WXYZ),
187 	_T(B8G8R8X8_UNORM,   8_8_8_8_UNORM, R8G8B8A8_UNORM, WXYZ),
188 	VT(B8G8R8A8_SRGB,    8_8_8_8_UNORM, R8G8B8A8_UNORM, WXYZ),
189 	_T(B8G8R8X8_SRGB,    8_8_8_8_UNORM, R8G8B8A8_UNORM, WXYZ),
190 
191 	VT(A8B8G8R8_UNORM,   8_8_8_8_UNORM, R8G8B8A8_UNORM, XYZW),
192 	_T(X8B8G8R8_UNORM,   8_8_8_8_UNORM, R8G8B8A8_UNORM, XYZW),
193 	_T(A8B8G8R8_SRGB,    8_8_8_8_UNORM, R8G8B8A8_UNORM, XYZW),
194 	_T(X8B8G8R8_SRGB,    8_8_8_8_UNORM, R8G8B8A8_UNORM, XYZW),
195 
196 	VT(A8R8G8B8_UNORM,   8_8_8_8_UNORM, R8G8B8A8_UNORM, ZYXW),
197 	_T(X8R8G8B8_UNORM,   8_8_8_8_UNORM, R8G8B8A8_UNORM, ZYXW),
198 	_T(A8R8G8B8_SRGB,    8_8_8_8_UNORM, R8G8B8A8_UNORM, ZYXW),
199 	_T(X8R8G8B8_SRGB,    8_8_8_8_UNORM, R8G8B8A8_UNORM, ZYXW),
200 
201 	VT(R10G10B10A2_UNORM,   10_10_10_2_UNORM, R10G10B10A2_UNORM, WZYX),
202 	VT(B10G10R10A2_UNORM,   10_10_10_2_UNORM, R10G10B10A2_UNORM, WXYZ),
203 	_T(B10G10R10X2_UNORM,   10_10_10_2_UNORM, R10G10B10A2_UNORM, WXYZ),
204 	V_(R10G10B10A2_SNORM,   10_10_10_2_SNORM, NONE,              WZYX),
205 	V_(B10G10R10A2_SNORM,   10_10_10_2_SNORM, NONE,              WXYZ),
206 	VT(R10G10B10A2_UINT,    10_10_10_2_UINT,  R10G10B10A2_UINT,  WZYX),
207 	VT(B10G10R10A2_UINT,    10_10_10_2_UINT,  R10G10B10A2_UINT,  WXYZ),
208 	V_(R10G10B10A2_USCALED, 10_10_10_2_UINT,  NONE,              WZYX),
209 	V_(B10G10R10A2_USCALED, 10_10_10_2_UINT,  NONE,              WXYZ),
210 	V_(R10G10B10A2_SSCALED, 10_10_10_2_SINT,  NONE,              WZYX),
211 	V_(B10G10R10A2_SSCALED, 10_10_10_2_SINT,  NONE,              WXYZ),
212 
213 	VT(R11G11B10_FLOAT, 11_11_10_FLOAT, R11G11B10_FLOAT, WZYX),
214 	_T(R9G9B9E5_FLOAT,  9_9_9_E5_FLOAT, NONE,            WZYX),
215 
216 	_T(Z24X8_UNORM,       X8Z24_UNORM, R8G8B8A8_UNORM, WZYX),
217 	_T(X24S8_UINT,        8_8_8_8_UINT, R8G8B8A8_UINT, XYZW),
218 	_T(Z24_UNORM_S8_UINT, X8Z24_UNORM, R8G8B8A8_UNORM, WZYX),
219 	_T(Z32_FLOAT,         32_FLOAT,    R8G8B8A8_UNORM, WZYX),
220 	_T(Z32_FLOAT_S8X24_UINT, 32_FLOAT, R8G8B8A8_UNORM, WZYX),
221 	_T(X32_S8X24_UINT,    8_UINT,      R8_UINT,        WZYX),
222 
223 	/* 48-bit */
224 	V_(R16G16B16_UNORM,   16_16_16_UNORM, NONE, WZYX),
225 	V_(R16G16B16_SNORM,   16_16_16_SNORM, NONE, WZYX),
226 	V_(R16G16B16_UINT,    16_16_16_UINT,  NONE, WZYX),
227 	V_(R16G16B16_SINT,    16_16_16_SINT,  NONE, WZYX),
228 	V_(R16G16B16_USCALED, 16_16_16_UINT,  NONE, WZYX),
229 	V_(R16G16B16_SSCALED, 16_16_16_SINT,  NONE, WZYX),
230 	V_(R16G16B16_FLOAT,   16_16_16_FLOAT, NONE, WZYX),
231 
232 	/* 64-bit */
233 	VT(R16G16B16A16_UNORM,   16_16_16_16_UNORM, R16G16B16A16_UNORM, WZYX),
234 	VT(R16G16B16X16_UNORM,   16_16_16_16_UNORM, R16G16B16A16_UNORM, WZYX),
235 	VT(R16G16B16A16_SNORM,   16_16_16_16_SNORM, R16G16B16A16_SNORM, WZYX),
236 	VT(R16G16B16X16_SNORM,   16_16_16_16_SNORM, R16G16B16A16_SNORM, WZYX),
237 	VT(R16G16B16A16_UINT,    16_16_16_16_UINT,  R16G16B16A16_UINT,  WZYX),
238 	VT(R16G16B16X16_UINT,    16_16_16_16_UINT,  R16G16B16A16_UINT,  WZYX),
239 	VT(R16G16B16A16_SINT,    16_16_16_16_SINT,  R16G16B16A16_SINT,  WZYX),
240 	VT(R16G16B16X16_SINT,    16_16_16_16_SINT,  R16G16B16A16_SINT,  WZYX),
241 	VT(R16G16B16A16_USCALED, 16_16_16_16_UINT,  NONE,               WZYX),
242 	VT(R16G16B16A16_SSCALED, 16_16_16_16_SINT,  NONE,               WZYX),
243 	VT(R16G16B16A16_FLOAT,   16_16_16_16_FLOAT, R16G16B16A16_FLOAT, WZYX),
244 	VT(R16G16B16X16_FLOAT,   16_16_16_16_FLOAT, R16G16B16A16_FLOAT, WZYX),
245 
246 	VT(R32G32_UINT,    32_32_UINT,  R32G32_UINT, WZYX),
247 	VT(R32G32_SINT,    32_32_SINT,  R32G32_SINT, WZYX),
248 	V_(R32G32_USCALED, 32_32_UINT,  NONE,        WZYX),
249 	V_(R32G32_SSCALED, 32_32_SINT,  NONE,        WZYX),
250 	VT(R32G32_FLOAT,   32_32_FLOAT, R32G32_FLOAT,WZYX),
251 	V_(R32G32_FIXED,   32_32_FIXED, NONE,        WZYX),
252 
253 	_T(L32A32_UINT,    32_32_UINT,  NONE,        WZYX),
254 	_T(L32A32_SINT,    32_32_SINT,  NONE,        WZYX),
255 
256 	/* 96-bit */
257 	VT(R32G32B32_UINT,    32_32_32_UINT,  NONE, WZYX),
258 	VT(R32G32B32_SINT,    32_32_32_SINT,  NONE, WZYX),
259 	V_(R32G32B32_USCALED, 32_32_32_UINT,  NONE, WZYX),
260 	V_(R32G32B32_SSCALED, 32_32_32_SINT,  NONE, WZYX),
261 	VT(R32G32B32_FLOAT,   32_32_32_FLOAT, NONE, WZYX),
262 	V_(R32G32B32_FIXED,   32_32_32_FIXED, NONE, WZYX),
263 
264 	/* 128-bit */
265 	VT(R32G32B32A32_UINT,    32_32_32_32_UINT,  R32G32B32A32_UINT,  WZYX),
266 	_T(R32G32B32X32_UINT,    32_32_32_32_UINT,  R32G32B32A32_UINT,  WZYX),
267 	VT(R32G32B32A32_SINT,    32_32_32_32_SINT,  R32G32B32A32_SINT,  WZYX),
268 	_T(R32G32B32X32_SINT,    32_32_32_32_SINT,  R32G32B32A32_SINT,  WZYX),
269 	V_(R32G32B32A32_USCALED, 32_32_32_32_UINT,  NONE,               WZYX),
270 	V_(R32G32B32A32_SSCALED, 32_32_32_32_SINT,  NONE,               WZYX),
271 	VT(R32G32B32A32_FLOAT,   32_32_32_32_FLOAT, R32G32B32A32_FLOAT, WZYX),
272 	_T(R32G32B32X32_FLOAT,   32_32_32_32_FLOAT, R32G32B32A32_FLOAT, WZYX),
273 	V_(R32G32B32A32_FIXED,   32_32_32_32_FIXED, NONE,               WZYX),
274 
275 	/* compressed */
276 	_T(ETC1_RGB8, ETC1, NONE, WZYX),
277 	_T(ETC2_RGB8, ETC2_RGB8, NONE, WZYX),
278 	_T(ETC2_SRGB8, ETC2_RGB8, NONE, WZYX),
279 	_T(ETC2_RGB8A1, ETC2_RGB8A1, NONE, WZYX),
280 	_T(ETC2_SRGB8A1, ETC2_RGB8A1, NONE, WZYX),
281 	_T(ETC2_RGBA8, ETC2_RGBA8, NONE, WZYX),
282 	_T(ETC2_SRGBA8, ETC2_RGBA8, NONE, WZYX),
283 	_T(ETC2_R11_UNORM, ETC2_R11_UNORM, NONE, WZYX),
284 	_T(ETC2_R11_SNORM, ETC2_R11_SNORM, NONE, WZYX),
285 	_T(ETC2_RG11_UNORM, ETC2_RG11_UNORM, NONE, WZYX),
286 	_T(ETC2_RG11_SNORM, ETC2_RG11_SNORM, NONE, WZYX),
287 
288 	_T(DXT1_RGB,   DXT1, NONE, WZYX),
289 	_T(DXT1_SRGB,  DXT1, NONE, WZYX),
290 	_T(DXT1_RGBA,  DXT1, NONE, WZYX),
291 	_T(DXT1_SRGBA, DXT1, NONE, WZYX),
292 	_T(DXT3_RGBA,  DXT3, NONE, WZYX),
293 	_T(DXT3_SRGBA, DXT3, NONE, WZYX),
294 	_T(DXT5_RGBA,  DXT5, NONE, WZYX),
295 	_T(DXT5_SRGBA, DXT5, NONE, WZYX),
296 
297 	_T(BPTC_RGBA_UNORM, BPTC,        NONE, WZYX),
298 	_T(BPTC_SRGBA,      BPTC,        NONE, WZYX),
299 	_T(BPTC_RGB_FLOAT,  BPTC_FLOAT,  NONE, WZYX),
300 	_T(BPTC_RGB_UFLOAT, BPTC_UFLOAT, NONE, WZYX),
301 
302 	_T(RGTC1_UNORM, RGTC1_UNORM, NONE, WZYX),
303 	_T(RGTC1_SNORM, RGTC1_SNORM, NONE, WZYX),
304 	_T(RGTC2_UNORM, RGTC2_UNORM, NONE, WZYX),
305 	_T(RGTC2_SNORM, RGTC2_SNORM, NONE, WZYX),
306 	_T(LATC1_UNORM, RGTC1_UNORM, NONE, WZYX),
307 	_T(LATC1_SNORM, RGTC1_SNORM, NONE, WZYX),
308 	_T(LATC2_UNORM, RGTC2_UNORM, NONE, WZYX),
309 	_T(LATC2_SNORM, RGTC2_SNORM, NONE, WZYX),
310 
311 	_T(ASTC_4x4,   ASTC_4x4,   NONE, WZYX),
312 	_T(ASTC_5x4,   ASTC_5x4,   NONE, WZYX),
313 	_T(ASTC_5x5,   ASTC_5x5,   NONE, WZYX),
314 	_T(ASTC_6x5,   ASTC_6x5,   NONE, WZYX),
315 	_T(ASTC_6x6,   ASTC_6x6,   NONE, WZYX),
316 	_T(ASTC_8x5,   ASTC_8x5,   NONE, WZYX),
317 	_T(ASTC_8x6,   ASTC_8x6,   NONE, WZYX),
318 	_T(ASTC_8x8,   ASTC_8x8,   NONE, WZYX),
319 	_T(ASTC_10x5,  ASTC_10x5,  NONE, WZYX),
320 	_T(ASTC_10x6,  ASTC_10x6,  NONE, WZYX),
321 	_T(ASTC_10x8,  ASTC_10x8,  NONE, WZYX),
322 	_T(ASTC_10x10, ASTC_10x10, NONE, WZYX),
323 	_T(ASTC_12x10, ASTC_12x10, NONE, WZYX),
324 	_T(ASTC_12x12, ASTC_12x12, NONE, WZYX),
325 
326 	_T(ASTC_4x4_SRGB,   ASTC_4x4,   NONE, WZYX),
327 	_T(ASTC_5x4_SRGB,   ASTC_5x4,   NONE, WZYX),
328 	_T(ASTC_5x5_SRGB,   ASTC_5x5,   NONE, WZYX),
329 	_T(ASTC_6x5_SRGB,   ASTC_6x5,   NONE, WZYX),
330 	_T(ASTC_6x6_SRGB,   ASTC_6x6,   NONE, WZYX),
331 	_T(ASTC_8x5_SRGB,   ASTC_8x5,   NONE, WZYX),
332 	_T(ASTC_8x6_SRGB,   ASTC_8x6,   NONE, WZYX),
333 	_T(ASTC_8x8_SRGB,   ASTC_8x8,   NONE, WZYX),
334 	_T(ASTC_10x5_SRGB,  ASTC_10x5,  NONE, WZYX),
335 	_T(ASTC_10x6_SRGB,  ASTC_10x6,  NONE, WZYX),
336 	_T(ASTC_10x8_SRGB,  ASTC_10x8,  NONE, WZYX),
337 	_T(ASTC_10x10_SRGB, ASTC_10x10, NONE, WZYX),
338 	_T(ASTC_12x10_SRGB, ASTC_12x10, NONE, WZYX),
339 	_T(ASTC_12x12_SRGB, ASTC_12x12, NONE, WZYX),
340 };
341 
342 /* convert pipe format to vertex buffer format: */
343 enum a5xx_vtx_fmt
fd5_pipe2vtx(enum pipe_format format)344 fd5_pipe2vtx(enum pipe_format format)
345 {
346 	if (!formats[format].present)
347 		return ~0;
348 	return formats[format].vtx;
349 }
350 
351 /* convert pipe format to texture sampler format: */
352 enum a5xx_tex_fmt
fd5_pipe2tex(enum pipe_format format)353 fd5_pipe2tex(enum pipe_format format)
354 {
355 	if (!formats[format].present)
356 		return ~0;
357 	return formats[format].tex;
358 }
359 
360 /* convert pipe format to MRT / copydest format used for render-target: */
361 enum a5xx_color_fmt
fd5_pipe2color(enum pipe_format format)362 fd5_pipe2color(enum pipe_format format)
363 {
364 	if (!formats[format].present)
365 		return ~0;
366 	return formats[format].rb;
367 }
368 
369 enum a3xx_color_swap
fd5_pipe2swap(enum pipe_format format)370 fd5_pipe2swap(enum pipe_format format)
371 {
372 	if (!formats[format].present)
373 		return WZYX;
374 	return formats[format].swap;
375 }
376 
377 // XXX possibly same as a4xx..
378 enum a5xx_tex_fetchsize
fd5_pipe2fetchsize(enum pipe_format format)379 fd5_pipe2fetchsize(enum pipe_format format)
380 {
381 	if (format == PIPE_FORMAT_Z32_FLOAT_S8X24_UINT)
382 		format = PIPE_FORMAT_Z32_FLOAT;
383 
384 	if (util_format_description(format)->layout == UTIL_FORMAT_LAYOUT_ASTC)
385 		return TFETCH5_16_BYTE;
386 
387 	switch (util_format_get_blocksizebits(format) / util_format_get_blockwidth(format)) {
388 	case 8:   return TFETCH5_1_BYTE;
389 	case 16:  return TFETCH5_2_BYTE;
390 	case 32:  return TFETCH5_4_BYTE;
391 	case 64:  return TFETCH5_8_BYTE;
392 	case 96:  return TFETCH5_1_BYTE; /* Does this matter? */
393 	case 128: return TFETCH5_16_BYTE;
394 	default:
395 		debug_printf("Unknown block size for format %s: %d\n",
396 				util_format_name(format),
397 				util_format_get_blocksizebits(format));
398 		return TFETCH5_1_BYTE;
399 	}
400 }
401 
402 enum a5xx_depth_format
fd5_pipe2depth(enum pipe_format format)403 fd5_pipe2depth(enum pipe_format format)
404 {
405 	switch (format) {
406 	case PIPE_FORMAT_Z16_UNORM:
407 		return DEPTH5_16;
408 	case PIPE_FORMAT_Z24X8_UNORM:
409 	case PIPE_FORMAT_Z24_UNORM_S8_UINT:
410 	case PIPE_FORMAT_X8Z24_UNORM:
411 	case PIPE_FORMAT_S8_UINT_Z24_UNORM:
412 		return DEPTH5_24_8;
413 	case PIPE_FORMAT_Z32_FLOAT:
414 	case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT:
415 		return DEPTH5_32;
416 	default:
417 		return ~0;
418 	}
419 }
420 
421 static inline enum a5xx_tex_swiz
tex_swiz(unsigned swiz)422 tex_swiz(unsigned swiz)
423 {
424 	switch (swiz) {
425 	default:
426 	case PIPE_SWIZZLE_X: return A5XX_TEX_X;
427 	case PIPE_SWIZZLE_Y: return A5XX_TEX_Y;
428 	case PIPE_SWIZZLE_Z: return A5XX_TEX_Z;
429 	case PIPE_SWIZZLE_W: return A5XX_TEX_W;
430 	case PIPE_SWIZZLE_0: return A5XX_TEX_ZERO;
431 	case PIPE_SWIZZLE_1: return A5XX_TEX_ONE;
432 	}
433 }
434 
435 uint32_t
fd5_tex_swiz(enum pipe_format format,unsigned swizzle_r,unsigned swizzle_g,unsigned swizzle_b,unsigned swizzle_a)436 fd5_tex_swiz(enum pipe_format format, unsigned swizzle_r, unsigned swizzle_g,
437 		unsigned swizzle_b, unsigned swizzle_a)
438 {
439 	const struct util_format_description *desc =
440 			util_format_description(format);
441 	unsigned char swiz[4] = {
442 			swizzle_r, swizzle_g, swizzle_b, swizzle_a,
443 	}, rswiz[4];
444 
445 	util_format_compose_swizzles(desc->swizzle, swiz, rswiz);
446 
447 	return A5XX_TEX_CONST_0_SWIZ_X(tex_swiz(rswiz[0])) |
448 			A5XX_TEX_CONST_0_SWIZ_Y(tex_swiz(rswiz[1])) |
449 			A5XX_TEX_CONST_0_SWIZ_Z(tex_swiz(rswiz[2])) |
450 			A5XX_TEX_CONST_0_SWIZ_W(tex_swiz(rswiz[3]));
451 }
452