1 /*
2  * Copyright (C) 2016 Rob Clark <robclark@freedesktop.org>
3  * Copyright © 2018 Google, Inc.
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining a
6  * copy of this software and associated documentation files (the "Software"),
7  * to deal in the Software without restriction, including without limitation
8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9  * and/or sell copies of the Software, and to permit persons to whom the
10  * Software is furnished to do so, subject to the following conditions:
11  *
12  * The above copyright notice and this permission notice (including the next
13  * paragraph) shall be included in all copies or substantial portions of the
14  * Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22  * SOFTWARE.
23  *
24  * Authors:
25  *    Rob Clark <robclark@freedesktop.org>
26  */
27 
28 #include "pipe/p_defines.h"
29 #include "util/format/u_format.h"
30 
31 #include "fd6_format_table.h"
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 fd6_format {
38    enum a6xx_format vtx;
39    enum a6xx_format tex;
40    enum a6xx_format rb;
41    enum a3xx_color_swap swap;
42    boolean present;
43 };
44 
45 #define FMT(pipe, vtxfmt, texfmt, rbfmt, swapfmt)                              \
46    [PIPE_FORMAT_##pipe] = {.present = 1,                                       \
47                            .vtx = FMT6_##vtxfmt,                               \
48                            .tex = FMT6_##texfmt,                               \
49                            .rb = FMT6_##rbfmt,                                 \
50                            .swap = swapfmt}
51 
52 /* vertex + texture + color */
53 #define VTC(pipe, fmt, swapfmt) FMT(pipe, fmt, fmt, fmt, swapfmt)
54 
55 #define _TC(pipe, fmt, swapfmt) FMT(pipe, NONE, fmt, fmt, swapfmt)
56 #define _T_(pipe, fmt, swapfmt) FMT(pipe, NONE, fmt, NONE, swapfmt)
57 #define VT_(pipe, fmt, swapfmt) FMT(pipe, fmt, fmt, NONE, swapfmt)
58 #define V__(pipe, fmt, swapfmt) FMT(pipe, fmt, NONE, NONE, swapfmt)
59 
60 /* clang-format off */
61 static const struct fd6_format formats[PIPE_FORMAT_COUNT] = {
62    /* 8-bit */
63    VTC(R8_UNORM,   8_UNORM,                     WZYX),
64    VTC(R8_SNORM,   8_SNORM,                     WZYX),
65    VTC(R8_UINT,    8_UINT,                      WZYX),
66    VTC(R8_SINT,    8_SINT,                      WZYX),
67    V__(R8_USCALED, 8_UINT,                      WZYX),
68    V__(R8_SSCALED, 8_SINT,                      WZYX),
69    _TC(R8_SRGB,    8_UNORM,                     WZYX),
70 
71    FMT(A8_UNORM,   NONE, 8_UNORM, A8_UNORM,     WZYX),
72    _TC(L8_UNORM,   8_UNORM,                     WZYX),
73    _T_(I8_UNORM,   8_UNORM,                     WZYX),
74 
75    _T_(A8_UINT,    8_UINT,                      WZYX),
76    _T_(A8_SINT,    8_SINT,                      WZYX),
77    _T_(L8_UINT,    8_UINT,                      WZYX),
78    _T_(L8_SINT,    8_SINT,                      WZYX),
79    _T_(I8_UINT,    8_UINT,                      WZYX),
80    _T_(I8_SINT,    8_SINT,                      WZYX),
81 
82    _TC(S8_UINT,    8_UINT,                      WZYX),
83 
84    /* 16-bit */
85    VTC(R16_UNORM,   16_UNORM,                   WZYX),
86    VTC(R16_SNORM,   16_SNORM,                   WZYX),
87    VTC(R16_UINT,    16_UINT,                    WZYX),
88    VTC(R16_SINT,    16_SINT,                    WZYX),
89    V__(R16_USCALED, 16_UINT,                    WZYX),
90    V__(R16_SSCALED, 16_SINT,                    WZYX),
91    VTC(R16_FLOAT,   16_FLOAT,                   WZYX),
92    _TC(Z16_UNORM,   16_UNORM,                   WZYX),
93 
94    _T_(A16_UNORM,   16_UNORM,                   WZYX),
95    _T_(A16_SNORM,   16_SNORM,                   WZYX),
96    _T_(A16_UINT,    16_UINT,                    WZYX),
97    _T_(A16_SINT,    16_SINT,                    WZYX),
98    _T_(L16_UNORM,   16_UNORM,                   WZYX),
99    _T_(L16_SNORM,   16_SNORM,                   WZYX),
100    _T_(L16_UINT,    16_UINT,                    WZYX),
101    _T_(L16_SINT,    16_SINT,                    WZYX),
102    _T_(I16_UNORM,   16_UNORM,                   WZYX),
103    _T_(I16_SNORM,   16_SNORM,                   WZYX),
104    _T_(I16_UINT,    16_UINT,                    WZYX),
105    _T_(I16_SINT,    16_SINT,                    WZYX),
106 
107    VTC(R8G8_UNORM,   8_8_UNORM,                 WZYX),
108    VTC(R8G8_SNORM,   8_8_SNORM,                 WZYX),
109    VTC(R8G8_UINT,    8_8_UINT,                  WZYX),
110    VTC(R8G8_SINT,    8_8_SINT,                  WZYX),
111    V__(R8G8_USCALED, 8_8_UINT,                  WZYX),
112    V__(R8G8_SSCALED, 8_8_SINT,                  WZYX),
113    _TC(R8G8_SRGB,    8_8_UNORM,                 WZYX),
114 
115    _T_(L8A8_UINT,    8_8_UINT,                  WZYX),
116    _T_(L8A8_SINT,    8_8_SINT,                  WZYX),
117 
118    _TC(R5G6B5_UNORM,   5_6_5_UNORM,             WZYX),
119    _TC(B5G6R5_UNORM,   5_6_5_UNORM,             WXYZ),
120 
121    _TC(B5G5R5A1_UNORM, 5_5_5_1_UNORM,           WXYZ),
122    _TC(B5G5R5X1_UNORM, 5_5_5_1_UNORM,           WXYZ),
123    _TC(A1R5G5B5_UNORM, 5_5_5_1_UNORM,           ZYXW),
124    _TC(A1B5G5R5_UNORM, 5_5_5_1_UNORM,           XYZW),
125 
126    _TC(R4G4B4A4_UNORM, 4_4_4_4_UNORM,           WZYX),
127    _TC(B4G4R4A4_UNORM, 4_4_4_4_UNORM,           WXYZ),
128    _TC(A4R4G4B4_UNORM, 4_4_4_4_UNORM,           ZYXW),
129    _TC(A4B4G4R4_UNORM, 4_4_4_4_UNORM,           XYZW),
130 
131    /* 24-bit */
132    V__(R8G8B8_UNORM,   8_8_8_UNORM,             WZYX),
133    V__(R8G8B8_SNORM,   8_8_8_SNORM,             WZYX),
134    V__(R8G8B8_UINT,    8_8_8_UINT,              WZYX),
135    V__(R8G8B8_SINT,    8_8_8_SINT,              WZYX),
136    V__(R8G8B8_USCALED, 8_8_8_UINT,              WZYX),
137    V__(R8G8B8_SSCALED, 8_8_8_SINT,              WZYX),
138 
139    /* 32-bit */
140    V__(R32_UNORM,   32_UNORM,                   WZYX),
141    V__(R32_SNORM,   32_SNORM,                   WZYX),
142    VTC(R32_UINT,    32_UINT,                    WZYX),
143    VTC(R32_SINT,    32_SINT,                    WZYX),
144    V__(R32_USCALED, 32_UINT,                    WZYX),
145    V__(R32_SSCALED, 32_SINT,                    WZYX),
146    VTC(R32_FLOAT,   32_FLOAT,                   WZYX),
147    V__(R32_FIXED,   32_FIXED,                   WZYX),
148 
149    _T_(A32_UINT,    32_UINT,                    WZYX),
150    _T_(A32_SINT,    32_SINT,                    WZYX),
151    _T_(L32_UINT,    32_UINT,                    WZYX),
152    _T_(L32_SINT,    32_SINT,                    WZYX),
153    _T_(I32_UINT,    32_UINT,                    WZYX),
154    _T_(I32_SINT,    32_SINT,                    WZYX),
155 
156    VTC(R16G16_UNORM,   16_16_UNORM,             WZYX),
157    VTC(R16G16_SNORM,   16_16_SNORM,             WZYX),
158    VTC(R16G16_UINT,    16_16_UINT,              WZYX),
159    VTC(R16G16_SINT,    16_16_SINT,              WZYX),
160    V__(R16G16_USCALED, 16_16_UINT,              WZYX),
161    V__(R16G16_SSCALED, 16_16_SINT,              WZYX),
162    VTC(R16G16_FLOAT,   16_16_FLOAT,             WZYX),
163 
164    _T_(L16A16_UNORM,   16_16_UNORM,             WZYX),
165    _T_(L16A16_SNORM,   16_16_SNORM,             WZYX),
166    _T_(L16A16_UINT,    16_16_UINT,              WZYX),
167    _T_(L16A16_SINT,    16_16_SINT,              WZYX),
168 
169    VTC(R8G8B8A8_UNORM,   8_8_8_8_UNORM,         WZYX),
170    _TC(R8G8B8X8_UNORM,   8_8_8_8_UNORM,         WZYX),
171    _TC(R8G8B8A8_SRGB,    8_8_8_8_UNORM,         WZYX),
172    _TC(R8G8B8X8_SRGB,    8_8_8_8_UNORM,         WZYX),
173    VTC(R8G8B8A8_SNORM,   8_8_8_8_SNORM,         WZYX),
174    VTC(R8G8B8A8_UINT,    8_8_8_8_UINT,          WZYX),
175    VTC(R8G8B8A8_SINT,    8_8_8_8_SINT,          WZYX),
176    V__(R8G8B8A8_USCALED, 8_8_8_8_UINT,          WZYX),
177    V__(R8G8B8A8_SSCALED, 8_8_8_8_SINT,          WZYX),
178 
179    VTC(B8G8R8A8_UNORM,   8_8_8_8_UNORM,         WXYZ),
180    _TC(B8G8R8X8_UNORM,   8_8_8_8_UNORM,         WXYZ),
181    _TC(B8G8R8A8_SRGB,    8_8_8_8_UNORM,         WXYZ),
182    _TC(B8G8R8X8_SRGB,    8_8_8_8_UNORM,         WXYZ),
183    VTC(B8G8R8A8_SNORM,   8_8_8_8_SNORM,         WXYZ),
184    VTC(B8G8R8A8_UINT,    8_8_8_8_UINT,          WXYZ),
185    VTC(B8G8R8A8_SINT,    8_8_8_8_SINT,          WXYZ),
186    V__(B8G8R8A8_USCALED, 8_8_8_8_UINT,          WXYZ),
187    V__(B8G8R8A8_SSCALED, 8_8_8_8_SINT,          WXYZ),
188 
189    VTC(A8B8G8R8_UNORM,   8_8_8_8_UNORM,         XYZW),
190    _TC(X8B8G8R8_UNORM,   8_8_8_8_UNORM,         XYZW),
191    _TC(A8B8G8R8_SRGB,    8_8_8_8_UNORM,         XYZW),
192    _TC(X8B8G8R8_SRGB,    8_8_8_8_UNORM,         XYZW),
193 
194    VTC(A8R8G8B8_UNORM,   8_8_8_8_UNORM,         ZYXW),
195    _TC(X8R8G8B8_UNORM,   8_8_8_8_UNORM,         ZYXW),
196    _TC(A8R8G8B8_SRGB,    8_8_8_8_UNORM,         ZYXW),
197    _TC(X8R8G8B8_SRGB,    8_8_8_8_UNORM,         ZYXW),
198 
199    FMT(R10G10B10A2_UNORM, 10_10_10_2_UNORM, 10_10_10_2_UNORM, 10_10_10_2_UNORM_DEST, WZYX),
200    FMT(B10G10R10A2_UNORM, 10_10_10_2_UNORM, 10_10_10_2_UNORM, 10_10_10_2_UNORM_DEST, WXYZ),
201    FMT(B10G10R10X2_UNORM, NONE,             10_10_10_2_UNORM, 10_10_10_2_UNORM_DEST, WXYZ),
202    V__(R10G10B10A2_SNORM,   10_10_10_2_SNORM,   WZYX),
203    V__(B10G10R10A2_SNORM,   10_10_10_2_SNORM,   WXYZ),
204    VTC(R10G10B10A2_UINT,    10_10_10_2_UINT,    WZYX),
205    V__(R10G10B10A2_SINT,    10_10_10_2_SINT,    WZYX),
206    VTC(B10G10R10A2_UINT,    10_10_10_2_UINT,    WXYZ),
207    V__(B10G10R10A2_SINT,    10_10_10_2_SINT,    WXYZ),
208    V__(R10G10B10A2_USCALED, 10_10_10_2_UINT,    WZYX),
209    V__(B10G10R10A2_USCALED, 10_10_10_2_UINT,    WXYZ),
210    V__(R10G10B10A2_SSCALED, 10_10_10_2_SINT,    WZYX),
211    V__(B10G10R10A2_SSCALED, 10_10_10_2_SINT,    WXYZ),
212 
213    VTC(R11G11B10_FLOAT, 11_11_10_FLOAT,         WZYX),
214    _T_(R9G9B9E5_FLOAT,  9_9_9_E5_FLOAT,         WZYX),
215 
216    _TC(Z24X8_UNORM,          Z24_UNORM_S8_UINT, WZYX),
217    _TC(X24S8_UINT,           8_8_8_8_UINT,      WZYX),
218    _TC(Z24_UNORM_S8_UINT,    Z24_UNORM_S8_UINT, WZYX),
219    _TC(Z32_FLOAT,            32_FLOAT,          WZYX),
220    _TC(Z32_FLOAT_S8X24_UINT, 32_FLOAT,          WZYX),
221    _TC(X32_S8X24_UINT,       8_UINT,            WZYX),
222 
223    /* special format for blits: */
224    _TC(Z24_UNORM_S8_UINT_AS_R8G8B8A8, Z24_UNORM_S8_UINT_AS_R8G8B8A8, WZYX),
225 
226    /* 48-bit */
227    V__(R16G16B16_UNORM,   16_16_16_UNORM,       WZYX),
228    V__(R16G16B16_SNORM,   16_16_16_SNORM,       WZYX),
229    V__(R16G16B16_UINT,    16_16_16_UINT,        WZYX),
230    V__(R16G16B16_SINT,    16_16_16_SINT,        WZYX),
231    V__(R16G16B16_USCALED, 16_16_16_UINT,        WZYX),
232    V__(R16G16B16_SSCALED, 16_16_16_SINT,        WZYX),
233    V__(R16G16B16_FLOAT,   16_16_16_FLOAT,       WZYX),
234 
235    /* 64-bit */
236    VTC(R16G16B16A16_UNORM,   16_16_16_16_UNORM, WZYX),
237    VTC(R16G16B16X16_UNORM,   16_16_16_16_UNORM, WZYX),
238    VTC(R16G16B16A16_SNORM,   16_16_16_16_SNORM, WZYX),
239    VTC(R16G16B16X16_SNORM,   16_16_16_16_SNORM, WZYX),
240    VTC(R16G16B16A16_UINT,    16_16_16_16_UINT,  WZYX),
241    VTC(R16G16B16X16_UINT,    16_16_16_16_UINT,  WZYX),
242    VTC(R16G16B16A16_SINT,    16_16_16_16_SINT,  WZYX),
243    VTC(R16G16B16X16_SINT,    16_16_16_16_SINT,  WZYX),
244    V__(R16G16B16A16_USCALED, 16_16_16_16_UINT,  WZYX),
245    V__(R16G16B16A16_SSCALED, 16_16_16_16_SINT,  WZYX),
246    VTC(R16G16B16A16_FLOAT,   16_16_16_16_FLOAT, WZYX),
247    VTC(R16G16B16X16_FLOAT,   16_16_16_16_FLOAT, WZYX),
248 
249    V__(R32G32_UNORM,   32_32_UNORM,             WZYX),
250    V__(R32G32_SNORM,   32_32_SNORM,             WZYX),
251    VTC(R32G32_UINT,    32_32_UINT,              WZYX),
252    VTC(R32G32_SINT,    32_32_SINT,              WZYX),
253    V__(R32G32_USCALED, 32_32_UINT,              WZYX),
254    V__(R32G32_SSCALED, 32_32_SINT,              WZYX),
255    VTC(R32G32_FLOAT,   32_32_FLOAT,             WZYX),
256    V__(R32G32_FIXED,   32_32_FIXED,             WZYX),
257 
258    _T_(L32A32_UINT,    32_32_UINT,              WZYX),
259    _T_(L32A32_SINT,    32_32_SINT,              WZYX),
260 
261    /* 96-bit */
262    V__(R32G32B32_UNORM,   32_32_32_UNORM,       WZYX),
263    V__(R32G32B32_SNORM,   32_32_32_SNORM,       WZYX),
264    VT_(R32G32B32_UINT,    32_32_32_UINT,        WZYX),
265    VT_(R32G32B32_SINT,    32_32_32_SINT,        WZYX),
266    V__(R32G32B32_USCALED, 32_32_32_UINT,        WZYX),
267    V__(R32G32B32_SSCALED, 32_32_32_SINT,        WZYX),
268    VT_(R32G32B32_FLOAT,   32_32_32_FLOAT,       WZYX),
269    V__(R32G32B32_FIXED,   32_32_32_FIXED,       WZYX),
270 
271    /* 128-bit */
272    V__(R32G32B32A32_UNORM,   32_32_32_32_UNORM, WZYX),
273    V__(R32G32B32A32_SNORM,   32_32_32_32_SNORM, WZYX),
274    VTC(R32G32B32A32_UINT,    32_32_32_32_UINT,  WZYX),
275    _TC(R32G32B32X32_UINT,    32_32_32_32_UINT,  WZYX),
276    VTC(R32G32B32A32_SINT,    32_32_32_32_SINT,  WZYX),
277    _TC(R32G32B32X32_SINT,    32_32_32_32_SINT,  WZYX),
278    V__(R32G32B32A32_USCALED, 32_32_32_32_UINT,  WZYX),
279    V__(R32G32B32A32_SSCALED, 32_32_32_32_SINT,  WZYX),
280    VTC(R32G32B32A32_FLOAT,   32_32_32_32_FLOAT, WZYX),
281    _TC(R32G32B32X32_FLOAT,   32_32_32_32_FLOAT, WZYX),
282    V__(R32G32B32A32_FIXED,   32_32_32_32_FIXED, WZYX),
283 
284    /* compressed */
285    _T_(ETC1_RGB8, ETC1,                         WZYX),
286    _T_(ETC2_RGB8, ETC2_RGB8,                    WZYX),
287    _T_(ETC2_SRGB8, ETC2_RGB8,                   WZYX),
288    _T_(ETC2_RGB8A1, ETC2_RGB8A1,                WZYX),
289    _T_(ETC2_SRGB8A1, ETC2_RGB8A1,               WZYX),
290    _T_(ETC2_RGBA8, ETC2_RGBA8,                  WZYX),
291    _T_(ETC2_SRGBA8, ETC2_RGBA8,                 WZYX),
292    _T_(ETC2_R11_UNORM, ETC2_R11_UNORM,          WZYX),
293    _T_(ETC2_R11_SNORM, ETC2_R11_SNORM,          WZYX),
294    _T_(ETC2_RG11_UNORM, ETC2_RG11_UNORM,        WZYX),
295    _T_(ETC2_RG11_SNORM, ETC2_RG11_SNORM,        WZYX),
296 
297    _T_(DXT1_RGB,   DXT1,                        WZYX),
298    _T_(DXT1_SRGB,  DXT1,                        WZYX),
299    _T_(DXT1_RGBA,  DXT1,                        WZYX),
300    _T_(DXT1_SRGBA, DXT1,                        WZYX),
301    _T_(DXT3_RGBA,  DXT3,                        WZYX),
302    _T_(DXT3_SRGBA, DXT3,                        WZYX),
303    _T_(DXT5_RGBA,  DXT5,                        WZYX),
304    _T_(DXT5_SRGBA, DXT5,                        WZYX),
305 
306    _T_(BPTC_RGBA_UNORM, BPTC,                   WZYX),
307    _T_(BPTC_SRGBA,      BPTC,                   WZYX),
308    _T_(BPTC_RGB_FLOAT,  BPTC_FLOAT,             WZYX),
309    _T_(BPTC_RGB_UFLOAT, BPTC_UFLOAT,            WZYX),
310 
311    _T_(RGTC1_UNORM, RGTC1_UNORM,                WZYX),
312    _T_(RGTC1_SNORM, RGTC1_SNORM,                WZYX),
313    _T_(RGTC2_UNORM, RGTC2_UNORM,                WZYX),
314    _T_(RGTC2_SNORM, RGTC2_SNORM,                WZYX),
315    _T_(LATC1_UNORM, RGTC1_UNORM,                WZYX),
316    _T_(LATC1_SNORM, RGTC1_SNORM,                WZYX),
317    _T_(LATC2_UNORM, RGTC2_UNORM,                WZYX),
318    _T_(LATC2_SNORM, RGTC2_SNORM,                WZYX),
319 
320    _T_(ASTC_4x4,   ASTC_4x4,                    WZYX),
321    _T_(ASTC_5x4,   ASTC_5x4,                    WZYX),
322    _T_(ASTC_5x5,   ASTC_5x5,                    WZYX),
323    _T_(ASTC_6x5,   ASTC_6x5,                    WZYX),
324    _T_(ASTC_6x6,   ASTC_6x6,                    WZYX),
325    _T_(ASTC_8x5,   ASTC_8x5,                    WZYX),
326    _T_(ASTC_8x6,   ASTC_8x6,                    WZYX),
327    _T_(ASTC_8x8,   ASTC_8x8,                    WZYX),
328    _T_(ASTC_10x5,  ASTC_10x5,                   WZYX),
329    _T_(ASTC_10x6,  ASTC_10x6,                   WZYX),
330    _T_(ASTC_10x8,  ASTC_10x8,                   WZYX),
331    _T_(ASTC_10x10, ASTC_10x10,                  WZYX),
332    _T_(ASTC_12x10, ASTC_12x10,                  WZYX),
333    _T_(ASTC_12x12, ASTC_12x12,                  WZYX),
334 
335    _T_(ASTC_4x4_SRGB,   ASTC_4x4,               WZYX),
336    _T_(ASTC_5x4_SRGB,   ASTC_5x4,               WZYX),
337    _T_(ASTC_5x5_SRGB,   ASTC_5x5,               WZYX),
338    _T_(ASTC_6x5_SRGB,   ASTC_6x5,               WZYX),
339    _T_(ASTC_6x6_SRGB,   ASTC_6x6,               WZYX),
340    _T_(ASTC_8x5_SRGB,   ASTC_8x5,               WZYX),
341    _T_(ASTC_8x6_SRGB,   ASTC_8x6,               WZYX),
342    _T_(ASTC_8x8_SRGB,   ASTC_8x8,               WZYX),
343    _T_(ASTC_10x5_SRGB,  ASTC_10x5,              WZYX),
344    _T_(ASTC_10x6_SRGB,  ASTC_10x6,              WZYX),
345    _T_(ASTC_10x8_SRGB,  ASTC_10x8,              WZYX),
346    _T_(ASTC_10x10_SRGB, ASTC_10x10,             WZYX),
347    _T_(ASTC_12x10_SRGB, ASTC_12x10,             WZYX),
348    _T_(ASTC_12x12_SRGB, ASTC_12x12,             WZYX),
349 
350    _T_(R8G8_R8B8_UNORM, R8G8R8B8_422_UNORM, WZYX), /* YUYV */
351    _T_(G8R8_B8R8_UNORM, G8R8B8R8_422_UNORM, WZYX), /* UYVY */
352 
353    _T_(R8_G8B8_420_UNORM, R8_G8B8_2PLANE_420_UNORM, WZYX),
354    _T_(R8_G8_B8_420_UNORM, R8_G8_B8_3PLANE_420_UNORM, WZYX),
355 };
356 /* clang-format on */
357 
358 static enum a3xx_color_swap
fd6_pipe2swap(enum pipe_format format,enum a6xx_tile_mode tile_mode)359 fd6_pipe2swap(enum pipe_format format, enum a6xx_tile_mode tile_mode)
360 {
361    if (!formats[format].present)
362       return WZYX;
363 
364    if (tile_mode)
365       return WZYX;
366 
367    return formats[format].swap;
368 }
369 
370 /* convert pipe format to vertex buffer format: */
371 enum a6xx_format
fd6_vertex_format(enum pipe_format format)372 fd6_vertex_format(enum pipe_format format)
373 {
374    if (!formats[format].present)
375       return FMT6_NONE;
376    return formats[format].vtx;
377 }
378 
379 enum a3xx_color_swap
fd6_vertex_swap(enum pipe_format format)380 fd6_vertex_swap(enum pipe_format format)
381 {
382    return fd6_pipe2swap(format, TILE6_LINEAR);
383 }
384 
385 /* convert pipe format to texture sampler format: */
386 enum a6xx_format
fd6_texture_format(enum pipe_format format,enum a6xx_tile_mode tile_mode)387 fd6_texture_format(enum pipe_format format, enum a6xx_tile_mode tile_mode)
388 {
389    if (!formats[format].present)
390       return FMT6_NONE;
391 
392    /* Linear ARGB/ABGR1555 has a special format for sampling (tiled 1555/5551
393     * formats always have the same swizzle and layout).
394     */
395    if (!tile_mode) {
396       switch (format) {
397       case PIPE_FORMAT_A1R5G5B5_UNORM:
398       case PIPE_FORMAT_A1B5G5R5_UNORM:
399          return FMT6_1_5_5_5_UNORM;
400       default:
401          break;
402       }
403    }
404 
405    return formats[format].tex;
406 }
407 
408 enum a3xx_color_swap
fd6_texture_swap(enum pipe_format format,enum a6xx_tile_mode tile_mode)409 fd6_texture_swap(enum pipe_format format, enum a6xx_tile_mode tile_mode)
410 {
411    if (!tile_mode) {
412       switch (format) {
413       case PIPE_FORMAT_A1R5G5B5_UNORM:
414          return WZYX;
415       case PIPE_FORMAT_A1B5G5R5_UNORM:
416          return WXYZ;
417       default:
418          break;
419       }
420    }
421 
422    return fd6_pipe2swap(format, tile_mode);
423 }
424 
425 /* convert pipe format to MRT / copydest format used for render-target: */
426 enum a6xx_format
fd6_color_format(enum pipe_format format,enum a6xx_tile_mode tile_mode)427 fd6_color_format(enum pipe_format format, enum a6xx_tile_mode tile_mode)
428 {
429    if (!formats[format].present)
430       return FMT6_NONE;
431    return formats[format].rb;
432 }
433 
434 enum a3xx_color_swap
fd6_color_swap(enum pipe_format format,enum a6xx_tile_mode tile_mode)435 fd6_color_swap(enum pipe_format format, enum a6xx_tile_mode tile_mode)
436 {
437    return fd6_pipe2swap(format, tile_mode);
438 }
439 
440 enum a6xx_depth_format
fd6_pipe2depth(enum pipe_format format)441 fd6_pipe2depth(enum pipe_format format)
442 {
443    switch (format) {
444    case PIPE_FORMAT_Z16_UNORM:
445       return DEPTH6_16;
446    case PIPE_FORMAT_Z24X8_UNORM:
447    case PIPE_FORMAT_Z24_UNORM_S8_UINT:
448    case PIPE_FORMAT_X8Z24_UNORM:
449    case PIPE_FORMAT_S8_UINT_Z24_UNORM:
450       return DEPTH6_24_8;
451    case PIPE_FORMAT_Z32_FLOAT:
452    case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT:
453       return DEPTH6_32;
454    default:
455       return ~0;
456    }
457 }
458