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3e7fff51743102f47f9d04957302cd53da403437
[mesa.git] / src / gallium / drivers / freedreno / a4xx / fd4_format.c
1 /*
2 * Copyright (C) 2014 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/format/u_format.h"
29
30 #include "fd4_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 fd4_format {
38 enum a4xx_vtx_fmt vtx;
39 enum a4xx_tex_fmt tex;
40 enum a4xx_color_fmt rb;
41 enum a3xx_color_swap swap;
42 boolean present;
43 };
44
45 /* vertex + texture */
46 #define VT(pipe, fmt, rbfmt, swapfmt) \
47 [PIPE_FORMAT_ ## pipe] = { \
48 .present = 1, \
49 .vtx = VFMT4_ ## fmt, \
50 .tex = TFMT4_ ## fmt, \
51 .rb = RB4_ ## rbfmt, \
52 .swap = swapfmt \
53 }
54
55 /* texture-only */
56 #define _T(pipe, fmt, rbfmt, swapfmt) \
57 [PIPE_FORMAT_ ## pipe] = { \
58 .present = 1, \
59 .vtx = VFMT4_NONE, \
60 .tex = TFMT4_ ## fmt, \
61 .rb = RB4_ ## rbfmt, \
62 .swap = swapfmt \
63 }
64
65 /* vertex-only */
66 #define V_(pipe, fmt, rbfmt, swapfmt) \
67 [PIPE_FORMAT_ ## pipe] = { \
68 .present = 1, \
69 .vtx = VFMT4_ ## fmt, \
70 .tex = TFMT4_NONE, \
71 .rb = RB4_ ## rbfmt, \
72 .swap = swapfmt \
73 }
74
75 static struct fd4_format formats[PIPE_FORMAT_COUNT] = {
76 /* 8-bit */
77 VT(R8_UNORM, 8_UNORM, R8_UNORM, WZYX),
78 VT(R8_SNORM, 8_SNORM, R8_SNORM, WZYX),
79 VT(R8_UINT, 8_UINT, R8_UINT, WZYX),
80 VT(R8_SINT, 8_SINT, R8_SINT, WZYX),
81 V_(R8_USCALED, 8_UINT, NONE, WZYX),
82 V_(R8_SSCALED, 8_SINT, NONE, WZYX),
83
84 _T(A8_UNORM, 8_UNORM, A8_UNORM, WZYX),
85 _T(L8_UNORM, 8_UNORM, R8_UNORM, WZYX),
86 _T(I8_UNORM, 8_UNORM, NONE, WZYX),
87
88 _T(A8_UINT, 8_UINT, NONE, WZYX),
89 _T(A8_SINT, 8_SINT, NONE, WZYX),
90 _T(L8_UINT, 8_UINT, NONE, WZYX),
91 _T(L8_SINT, 8_SINT, NONE, WZYX),
92 _T(I8_UINT, 8_UINT, NONE, WZYX),
93 _T(I8_SINT, 8_SINT, NONE, WZYX),
94
95 _T(S8_UINT, 8_UINT, R8_UNORM, WZYX),
96
97 /* 16-bit */
98 VT(R16_UNORM, 16_UNORM, R16_UNORM, WZYX),
99 VT(R16_SNORM, 16_SNORM, R16_SNORM, WZYX),
100 VT(R16_UINT, 16_UINT, R16_UINT, WZYX),
101 VT(R16_SINT, 16_SINT, R16_SINT, WZYX),
102 V_(R16_USCALED, 16_UINT, NONE, WZYX),
103 V_(R16_SSCALED, 16_SINT, NONE, WZYX),
104 VT(R16_FLOAT, 16_FLOAT, R16_FLOAT, WZYX),
105
106 _T(A16_UNORM, 16_UNORM, NONE, WZYX),
107 _T(A16_SNORM, 16_SNORM, NONE, WZYX),
108 _T(A16_UINT, 16_UINT, NONE, WZYX),
109 _T(A16_SINT, 16_SINT, NONE, WZYX),
110 _T(L16_UNORM, 16_UNORM, NONE, WZYX),
111 _T(L16_SNORM, 16_SNORM, NONE, WZYX),
112 _T(L16_UINT, 16_UINT, NONE, WZYX),
113 _T(L16_SINT, 16_SINT, NONE, WZYX),
114 _T(I16_UNORM, 16_UNORM, NONE, WZYX),
115 _T(I16_SNORM, 16_SNORM, NONE, WZYX),
116 _T(I16_UINT, 16_UINT, NONE, WZYX),
117 _T(I16_SINT, 16_SINT, NONE, WZYX),
118
119 VT(R8G8_UNORM, 8_8_UNORM, R8G8_UNORM, WZYX),
120 VT(R8G8_SNORM, 8_8_SNORM, R8G8_SNORM, WZYX),
121 VT(R8G8_UINT, 8_8_UINT, R8G8_UINT, WZYX),
122 VT(R8G8_SINT, 8_8_SINT, R8G8_SINT, WZYX),
123 V_(R8G8_USCALED, 8_8_UINT, NONE, WZYX),
124 V_(R8G8_SSCALED, 8_8_SINT, NONE, WZYX),
125
126 _T(L8A8_UINT, 8_8_UINT, NONE, WZYX),
127 _T(L8A8_SINT, 8_8_SINT, NONE, WZYX),
128
129 _T(B5G6R5_UNORM, 5_6_5_UNORM, R5G6B5_UNORM, WXYZ),
130 _T(B5G5R5A1_UNORM, 5_5_5_1_UNORM, R5G5B5A1_UNORM, WXYZ),
131 _T(B5G5R5X1_UNORM, 5_5_5_1_UNORM, R5G5B5A1_UNORM, WXYZ),
132 _T(B4G4R4A4_UNORM, 4_4_4_4_UNORM, R4G4B4A4_UNORM, WXYZ),
133
134 /* 24-bit */
135 V_(R8G8B8_UNORM, 8_8_8_UNORM, NONE, WZYX),
136 V_(R8G8B8_SNORM, 8_8_8_SNORM, NONE, WZYX),
137 V_(R8G8B8_UINT, 8_8_8_UINT, NONE, WZYX),
138 V_(R8G8B8_SINT, 8_8_8_SINT, NONE, WZYX),
139 V_(R8G8B8_USCALED, 8_8_8_UINT, NONE, WZYX),
140 V_(R8G8B8_SSCALED, 8_8_8_SINT, NONE, WZYX),
141
142 /* 32-bit */
143 VT(R32_UINT, 32_UINT, R32_UINT, WZYX),
144 VT(R32_SINT, 32_SINT, R32_SINT, WZYX),
145 V_(R32_USCALED, 32_UINT, NONE, WZYX),
146 V_(R32_SSCALED, 32_SINT, NONE, WZYX),
147 VT(R32_FLOAT, 32_FLOAT, R32_FLOAT,WZYX),
148 V_(R32_FIXED, 32_FIXED, NONE, WZYX),
149
150 _T(A32_UINT, 32_UINT, NONE, WZYX),
151 _T(A32_SINT, 32_SINT, NONE, WZYX),
152 _T(L32_UINT, 32_UINT, NONE, WZYX),
153 _T(L32_SINT, 32_SINT, NONE, WZYX),
154 _T(I32_UINT, 32_UINT, NONE, WZYX),
155 _T(I32_SINT, 32_SINT, NONE, WZYX),
156
157 VT(R16G16_UNORM, 16_16_UNORM, R16G16_UNORM, WZYX),
158 VT(R16G16_SNORM, 16_16_SNORM, R16G16_SNORM, WZYX),
159 VT(R16G16_UINT, 16_16_UINT, R16G16_UINT, WZYX),
160 VT(R16G16_SINT, 16_16_SINT, R16G16_SINT, WZYX),
161 V_(R16G16_USCALED, 16_16_UINT, NONE, WZYX),
162 V_(R16G16_SSCALED, 16_16_SINT, NONE, WZYX),
163 VT(R16G16_FLOAT, 16_16_FLOAT, R16G16_FLOAT, WZYX),
164
165 _T(L16A16_UNORM, 16_16_UNORM, NONE, WZYX),
166 _T(L16A16_SNORM, 16_16_SNORM, NONE, WZYX),
167 _T(L16A16_UINT, 16_16_UINT, NONE, WZYX),
168 _T(L16A16_SINT, 16_16_SINT, NONE, WZYX),
169
170 VT(R8G8B8A8_UNORM, 8_8_8_8_UNORM, R8G8B8A8_UNORM, WZYX),
171 _T(R8G8B8X8_UNORM, 8_8_8_8_UNORM, R8G8B8A8_UNORM, WZYX),
172 _T(R8G8B8A8_SRGB, 8_8_8_8_UNORM, R8G8B8A8_UNORM, WZYX),
173 _T(R8G8B8X8_SRGB, 8_8_8_8_UNORM, R8G8B8A8_UNORM, WZYX),
174 VT(R8G8B8A8_SNORM, 8_8_8_8_SNORM, R8G8B8A8_SNORM, WZYX),
175 VT(R8G8B8A8_UINT, 8_8_8_8_UINT, R8G8B8A8_UINT, WZYX),
176 VT(R8G8B8A8_SINT, 8_8_8_8_SINT, R8G8B8A8_SINT, WZYX),
177 V_(R8G8B8A8_USCALED, 8_8_8_8_UINT, NONE, WZYX),
178 V_(R8G8B8A8_SSCALED, 8_8_8_8_SINT, NONE, WZYX),
179
180 VT(B8G8R8A8_UNORM, 8_8_8_8_UNORM, R8G8B8A8_UNORM, WXYZ),
181 _T(B8G8R8X8_UNORM, 8_8_8_8_UNORM, R8G8B8A8_UNORM, WXYZ),
182 VT(B8G8R8A8_SRGB, 8_8_8_8_UNORM, R8G8B8A8_UNORM, WXYZ),
183 _T(B8G8R8X8_SRGB, 8_8_8_8_UNORM, R8G8B8A8_UNORM, WXYZ),
184
185 VT(A8B8G8R8_UNORM, 8_8_8_8_UNORM, R8G8B8A8_UNORM, XYZW),
186 _T(X8B8G8R8_UNORM, 8_8_8_8_UNORM, R8G8B8A8_UNORM, XYZW),
187 _T(A8B8G8R8_SRGB, 8_8_8_8_UNORM, R8G8B8A8_UNORM, XYZW),
188 _T(X8B8G8R8_SRGB, 8_8_8_8_UNORM, R8G8B8A8_UNORM, XYZW),
189
190 VT(A8R8G8B8_UNORM, 8_8_8_8_UNORM, R8G8B8A8_UNORM, ZYXW),
191 _T(X8R8G8B8_UNORM, 8_8_8_8_UNORM, R8G8B8A8_UNORM, ZYXW),
192 _T(A8R8G8B8_SRGB, 8_8_8_8_UNORM, R8G8B8A8_UNORM, ZYXW),
193 _T(X8R8G8B8_SRGB, 8_8_8_8_UNORM, R8G8B8A8_UNORM, ZYXW),
194
195 VT(R10G10B10A2_UNORM, 10_10_10_2_UNORM, R10G10B10A2_UNORM, WZYX),
196 VT(B10G10R10A2_UNORM, 10_10_10_2_UNORM, R10G10B10A2_UNORM, WXYZ),
197 _T(B10G10R10X2_UNORM, 10_10_10_2_UNORM, R10G10B10A2_UNORM, WXYZ),
198 V_(R10G10B10A2_SNORM, 10_10_10_2_SNORM, NONE, WZYX),
199 V_(B10G10R10A2_SNORM, 10_10_10_2_SNORM, NONE, WXYZ),
200 VT(R10G10B10A2_UINT, 10_10_10_2_UINT, R10G10B10A2_UINT, WZYX),
201 VT(B10G10R10A2_UINT, 10_10_10_2_UINT, R10G10B10A2_UINT, WXYZ),
202 V_(R10G10B10A2_USCALED, 10_10_10_2_UINT, NONE, WZYX),
203 V_(B10G10R10A2_USCALED, 10_10_10_2_UINT, NONE, WXYZ),
204 V_(R10G10B10A2_SSCALED, 10_10_10_2_SINT, NONE, WZYX),
205 V_(B10G10R10A2_SSCALED, 10_10_10_2_SINT, NONE, WXYZ),
206
207 VT(R11G11B10_FLOAT, 11_11_10_FLOAT, R11G11B10_FLOAT, WZYX),
208 _T(R9G9B9E5_FLOAT, 9_9_9_E5_FLOAT, NONE, WZYX),
209
210 _T(Z16_UNORM, 16_UNORM, R8G8_UNORM, WZYX),
211 _T(Z24X8_UNORM, X8Z24_UNORM, R8G8B8A8_UNORM, WZYX),
212 _T(X24S8_UINT, 8_8_8_8_UINT, R8G8B8A8_UINT, XYZW),
213 _T(Z24_UNORM_S8_UINT, X8Z24_UNORM, R8G8B8A8_UNORM, WZYX),
214 _T(Z32_FLOAT, 32_FLOAT, R8G8B8A8_UNORM, WZYX),
215 _T(Z32_FLOAT_S8X24_UINT, 32_FLOAT, R8G8B8A8_UNORM, WZYX),
216 _T(X32_S8X24_UINT, 8_UINT, R8_UINT, WZYX),
217
218 /* 48-bit */
219 V_(R16G16B16_UNORM, 16_16_16_UNORM, NONE, WZYX),
220 V_(R16G16B16_SNORM, 16_16_16_SNORM, NONE, WZYX),
221 V_(R16G16B16_UINT, 16_16_16_UINT, NONE, WZYX),
222 V_(R16G16B16_SINT, 16_16_16_SINT, NONE, WZYX),
223 V_(R16G16B16_USCALED, 16_16_16_UINT, NONE, WZYX),
224 V_(R16G16B16_SSCALED, 16_16_16_SINT, NONE, WZYX),
225 V_(R16G16B16_FLOAT, 16_16_16_FLOAT, NONE, WZYX),
226
227 /* 64-bit */
228 VT(R16G16B16A16_UNORM, 16_16_16_16_UNORM, R16G16B16A16_UNORM, WZYX),
229 VT(R16G16B16X16_UNORM, 16_16_16_16_UNORM, R16G16B16A16_UNORM, WZYX),
230 VT(R16G16B16A16_SNORM, 16_16_16_16_SNORM, R16G16B16A16_SNORM, WZYX),
231 VT(R16G16B16X16_SNORM, 16_16_16_16_SNORM, R16G16B16A16_SNORM, WZYX),
232 VT(R16G16B16A16_UINT, 16_16_16_16_UINT, R16G16B16A16_UINT, WZYX),
233 _T(R16G16B16X16_UINT, 16_16_16_16_UINT, R16G16B16A16_UINT, WZYX),
234 VT(R16G16B16A16_SINT, 16_16_16_16_SINT, R16G16B16A16_SINT, WZYX),
235 _T(R16G16B16X16_SINT, 16_16_16_16_SINT, R16G16B16A16_SINT, WZYX),
236 V_(R16G16B16A16_USCALED, 16_16_16_16_UINT, NONE, WZYX),
237 V_(R16G16B16A16_SSCALED, 16_16_16_16_SINT, NONE, WZYX),
238 VT(R16G16B16A16_FLOAT, 16_16_16_16_FLOAT, R16G16B16A16_FLOAT, WZYX),
239 _T(R16G16B16X16_FLOAT, 16_16_16_16_FLOAT, R16G16B16A16_FLOAT, WZYX),
240
241 VT(R32G32_UINT, 32_32_UINT, R32G32_UINT, WZYX),
242 VT(R32G32_SINT, 32_32_SINT, R32G32_SINT, WZYX),
243 V_(R32G32_USCALED, 32_32_UINT, NONE, WZYX),
244 V_(R32G32_SSCALED, 32_32_SINT, NONE, WZYX),
245 VT(R32G32_FLOAT, 32_32_FLOAT, R32G32_FLOAT,WZYX),
246 V_(R32G32_FIXED, 32_32_FIXED, NONE, WZYX),
247
248 _T(L32A32_UINT, 32_32_UINT, NONE, WZYX),
249 _T(L32A32_SINT, 32_32_SINT, NONE, WZYX),
250
251 /* 96-bit */
252 VT(R32G32B32_UINT, 32_32_32_UINT, NONE, WZYX),
253 VT(R32G32B32_SINT, 32_32_32_SINT, NONE, WZYX),
254 V_(R32G32B32_USCALED, 32_32_32_UINT, NONE, WZYX),
255 V_(R32G32B32_SSCALED, 32_32_32_SINT, NONE, WZYX),
256 VT(R32G32B32_FLOAT, 32_32_32_FLOAT, NONE, WZYX),
257 V_(R32G32B32_FIXED, 32_32_32_FIXED, NONE, WZYX),
258
259 /* 128-bit */
260 VT(R32G32B32A32_UINT, 32_32_32_32_UINT, R32G32B32A32_UINT, WZYX),
261 _T(R32G32B32X32_UINT, 32_32_32_32_UINT, R32G32B32A32_UINT, WZYX),
262 VT(R32G32B32A32_SINT, 32_32_32_32_SINT, R32G32B32A32_SINT, WZYX),
263 _T(R32G32B32X32_SINT, 32_32_32_32_SINT, R32G32B32A32_SINT, WZYX),
264 V_(R32G32B32A32_USCALED, 32_32_32_32_UINT, NONE, WZYX),
265 V_(R32G32B32A32_SSCALED, 32_32_32_32_SINT, NONE, WZYX),
266 VT(R32G32B32A32_FLOAT, 32_32_32_32_FLOAT, R32G32B32A32_FLOAT, WZYX),
267 _T(R32G32B32X32_FLOAT, 32_32_32_32_FLOAT, R32G32B32A32_FLOAT, WZYX),
268 V_(R32G32B32A32_FIXED, 32_32_32_32_FIXED, NONE, WZYX),
269
270 /* compressed */
271 _T(ETC1_RGB8, ETC1, NONE, WZYX),
272 _T(ETC2_RGB8, ETC2_RGB8, NONE, WZYX),
273 _T(ETC2_SRGB8, ETC2_RGB8, NONE, WZYX),
274 _T(ETC2_RGB8A1, ETC2_RGB8A1, NONE, WZYX),
275 _T(ETC2_SRGB8A1, ETC2_RGB8A1, NONE, WZYX),
276 _T(ETC2_RGBA8, ETC2_RGBA8, NONE, WZYX),
277 _T(ETC2_SRGBA8, ETC2_RGBA8, NONE, WZYX),
278 _T(ETC2_R11_UNORM, ETC2_R11_UNORM, NONE, WZYX),
279 _T(ETC2_R11_SNORM, ETC2_R11_SNORM, NONE, WZYX),
280 _T(ETC2_RG11_UNORM, ETC2_RG11_UNORM, NONE, WZYX),
281 _T(ETC2_RG11_SNORM, ETC2_RG11_SNORM, NONE, WZYX),
282
283 _T(DXT1_RGB, DXT1, NONE, WZYX),
284 _T(DXT1_SRGB, DXT1, NONE, WZYX),
285 _T(DXT1_RGBA, DXT1, NONE, WZYX),
286 _T(DXT1_SRGBA, DXT1, NONE, WZYX),
287 _T(DXT3_RGBA, DXT3, NONE, WZYX),
288 _T(DXT3_SRGBA, DXT3, NONE, WZYX),
289 _T(DXT5_RGBA, DXT5, NONE, WZYX),
290 _T(DXT5_SRGBA, DXT5, NONE, WZYX),
291
292 _T(BPTC_RGBA_UNORM, BPTC, NONE, WZYX),
293 _T(BPTC_SRGBA, BPTC, NONE, WZYX),
294 _T(BPTC_RGB_FLOAT, BPTC_FLOAT, NONE, WZYX),
295 _T(BPTC_RGB_UFLOAT, BPTC_UFLOAT, NONE, WZYX),
296
297 _T(RGTC1_UNORM, RGTC1_UNORM, NONE, WZYX),
298 _T(RGTC1_SNORM, RGTC1_SNORM, NONE, WZYX),
299 _T(RGTC2_UNORM, RGTC2_UNORM, NONE, WZYX),
300 _T(RGTC2_SNORM, RGTC2_SNORM, NONE, WZYX),
301 _T(LATC1_UNORM, RGTC1_UNORM, NONE, WZYX),
302 _T(LATC1_SNORM, RGTC1_SNORM, NONE, WZYX),
303 _T(LATC2_UNORM, RGTC2_UNORM, NONE, WZYX),
304 _T(LATC2_SNORM, RGTC2_SNORM, NONE, WZYX),
305
306 _T(ASTC_4x4, ASTC_4x4, NONE, WZYX),
307 _T(ASTC_5x4, ASTC_5x4, NONE, WZYX),
308 _T(ASTC_5x5, ASTC_5x5, NONE, WZYX),
309 _T(ASTC_6x5, ASTC_6x5, NONE, WZYX),
310 _T(ASTC_6x6, ASTC_6x6, NONE, WZYX),
311 _T(ASTC_8x5, ASTC_8x5, NONE, WZYX),
312 _T(ASTC_8x6, ASTC_8x6, NONE, WZYX),
313 _T(ASTC_8x8, ASTC_8x8, NONE, WZYX),
314 _T(ASTC_10x5, ASTC_10x5, NONE, WZYX),
315 _T(ASTC_10x6, ASTC_10x6, NONE, WZYX),
316 _T(ASTC_10x8, ASTC_10x8, NONE, WZYX),
317 _T(ASTC_10x10, ASTC_10x10, NONE, WZYX),
318 _T(ASTC_12x10, ASTC_12x10, NONE, WZYX),
319 _T(ASTC_12x12, ASTC_12x12, NONE, WZYX),
320
321 _T(ASTC_4x4_SRGB, ASTC_4x4, NONE, WZYX),
322 _T(ASTC_5x4_SRGB, ASTC_5x4, NONE, WZYX),
323 _T(ASTC_5x5_SRGB, ASTC_5x5, NONE, WZYX),
324 _T(ASTC_6x5_SRGB, ASTC_6x5, NONE, WZYX),
325 _T(ASTC_6x6_SRGB, ASTC_6x6, NONE, WZYX),
326 _T(ASTC_8x5_SRGB, ASTC_8x5, NONE, WZYX),
327 _T(ASTC_8x6_SRGB, ASTC_8x6, NONE, WZYX),
328 _T(ASTC_8x8_SRGB, ASTC_8x8, NONE, WZYX),
329 _T(ASTC_10x5_SRGB, ASTC_10x5, NONE, WZYX),
330 _T(ASTC_10x6_SRGB, ASTC_10x6, NONE, WZYX),
331 _T(ASTC_10x8_SRGB, ASTC_10x8, NONE, WZYX),
332 _T(ASTC_10x10_SRGB, ASTC_10x10, NONE, WZYX),
333 _T(ASTC_12x10_SRGB, ASTC_12x10, NONE, WZYX),
334 _T(ASTC_12x12_SRGB, ASTC_12x12, NONE, WZYX),
335 };
336
337 /* convert pipe format to vertex buffer format: */
338 enum a4xx_vtx_fmt
339 fd4_pipe2vtx(enum pipe_format format)
340 {
341 if (!formats[format].present)
342 return VFMT4_NONE;
343 return formats[format].vtx;
344 }
345
346 /* convert pipe format to texture sampler format: */
347 enum a4xx_tex_fmt
348 fd4_pipe2tex(enum pipe_format format)
349 {
350 if (!formats[format].present)
351 return TFMT4_NONE;
352 return formats[format].tex;
353 }
354
355 /* convert pipe format to MRT / copydest format used for render-target: */
356 enum a4xx_color_fmt
357 fd4_pipe2color(enum pipe_format format)
358 {
359 if (!formats[format].present)
360 return RB4_NONE;
361 return formats[format].rb;
362 }
363
364 enum a3xx_color_swap
365 fd4_pipe2swap(enum pipe_format format)
366 {
367 if (!formats[format].present)
368 return WZYX;
369 return formats[format].swap;
370 }
371
372 enum a4xx_tex_fetchsize
373 fd4_pipe2fetchsize(enum pipe_format format)
374 {
375 if (format == PIPE_FORMAT_Z32_FLOAT_S8X24_UINT)
376 format = PIPE_FORMAT_Z32_FLOAT;
377
378 if (util_format_description(format)->layout == UTIL_FORMAT_LAYOUT_ASTC)
379 return TFETCH4_16_BYTE;
380
381 switch (util_format_get_blocksizebits(format) / util_format_get_blockwidth(format)) {
382 case 8: return TFETCH4_1_BYTE;
383 case 16: return TFETCH4_2_BYTE;
384 case 32: return TFETCH4_4_BYTE;
385 case 64: return TFETCH4_8_BYTE;
386 case 96: return TFETCH4_1_BYTE; /* Does this matter? */
387 case 128: return TFETCH4_16_BYTE;
388 default:
389 debug_printf("Unknown block size for format %s: %d\n",
390 util_format_name(format),
391 util_format_get_blocksizebits(format));
392 return TFETCH4_1_BYTE;
393 }
394 }
395
396 enum a4xx_depth_format
397 fd4_pipe2depth(enum pipe_format format)
398 {
399 switch (format) {
400 case PIPE_FORMAT_Z16_UNORM:
401 return DEPTH4_16;
402 case PIPE_FORMAT_Z24X8_UNORM:
403 case PIPE_FORMAT_Z24_UNORM_S8_UINT:
404 case PIPE_FORMAT_X8Z24_UNORM:
405 case PIPE_FORMAT_S8_UINT_Z24_UNORM:
406 return DEPTH4_24_8;
407 case PIPE_FORMAT_Z32_FLOAT:
408 case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT:
409 return DEPTH4_32;
410 default:
411 return ~0;
412 }
413 }
414
415 static inline enum a4xx_tex_swiz
416 tex_swiz(unsigned swiz)
417 {
418 switch (swiz) {
419 default:
420 case PIPE_SWIZZLE_X: return A4XX_TEX_X;
421 case PIPE_SWIZZLE_Y: return A4XX_TEX_Y;
422 case PIPE_SWIZZLE_Z: return A4XX_TEX_Z;
423 case PIPE_SWIZZLE_W: return A4XX_TEX_W;
424 case PIPE_SWIZZLE_0: return A4XX_TEX_ZERO;
425 case PIPE_SWIZZLE_1: return A4XX_TEX_ONE;
426 }
427 }
428
429 uint32_t
430 fd4_tex_swiz(enum pipe_format format, unsigned swizzle_r, unsigned swizzle_g,
431 unsigned swizzle_b, unsigned swizzle_a)
432 {
433 const struct util_format_description *desc =
434 util_format_description(format);
435 unsigned char swiz[4] = {
436 swizzle_r, swizzle_g, swizzle_b, swizzle_a,
437 }, rswiz[4];
438
439 util_format_compose_swizzles(desc->swizzle, swiz, rswiz);
440
441 return A4XX_TEX_CONST_0_SWIZ_X(tex_swiz(rswiz[0])) |
442 A4XX_TEX_CONST_0_SWIZ_Y(tex_swiz(rswiz[1])) |
443 A4XX_TEX_CONST_0_SWIZ_Z(tex_swiz(rswiz[2])) |
444 A4XX_TEX_CONST_0_SWIZ_W(tex_swiz(rswiz[3]));
445 }