1/*
2 * Copyright (c) 2016 Etnaviv Project
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, sub license,
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
12 * next paragraph) shall be included in all copies or substantial portions
13 * of the 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 NON-INFRINGEMENT. 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
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 *
23 * Authors:
24 *    Christian Gmeiner <christian.gmeiner@gmail.com>
25 */
26
27#include "etnaviv_format.h"
28
29#include "hw/state.xml.h"
30#include "hw/state_3d.xml.h"
31
32#include "pipe/p_defines.h"
33
34/* Specifies the table of all the formats and their features. Also supplies
35 * the helpers that look up various data in those tables.
36 */
37
38struct etna_format {
39   unsigned vtx;
40   unsigned tex;
41   unsigned rs;
42   boolean present;
43};
44
45#define RS_FORMAT_NONE ~0
46
47#define RS_FORMAT_MASK        0xf
48#define RS_FORMAT(x)          ((x) & RS_FORMAT_MASK)
49#define RS_FORMAT_RB_SWAP     0x10
50
51#define RS_FORMAT_X8B8G8R8    (RS_FORMAT_X8R8G8B8 | RS_FORMAT_RB_SWAP)
52#define RS_FORMAT_A8B8G8R8    (RS_FORMAT_A8R8G8B8 | RS_FORMAT_RB_SWAP)
53
54/* vertex + texture */
55#define VT(pipe, vtxfmt, texfmt, rsfmt)                   \
56   [PIPE_FORMAT_##pipe] = {                               \
57      .vtx = VIVS_FE_VERTEX_ELEMENT_CONFIG_TYPE_##vtxfmt, \
58      .tex = TEXTURE_FORMAT_##texfmt,                     \
59      .rs = RS_FORMAT_##rsfmt,                            \
60      .present = 1,                                       \
61   }
62
63/* texture-only */
64#define _T(pipe, fmt, rsfmt)       \
65   [PIPE_FORMAT_##pipe] = {        \
66      .vtx = ETNA_NO_MATCH,        \
67      .tex = TEXTURE_FORMAT_##fmt, \
68      .rs = RS_FORMAT_##rsfmt,     \
69      .present = 1,                \
70   }
71
72/* vertex-only */
73#define V_(pipe, fmt, rsfmt)                           \
74   [PIPE_FORMAT_##pipe] = {                            \
75      .vtx = VIVS_FE_VERTEX_ELEMENT_CONFIG_TYPE_##fmt, \
76      .tex = ETNA_NO_MATCH,                            \
77      .rs = RS_FORMAT_##rsfmt,                         \
78      .present = 1,                                    \
79   }
80
81static struct etna_format formats[PIPE_FORMAT_COUNT] = {
82   /* 8-bit */
83   V_(R8_UNORM,   UNSIGNED_BYTE, NONE),
84   V_(R8_SNORM,   BYTE,          NONE),
85   V_(R8_UINT,    UNSIGNED_BYTE, NONE),
86   V_(R8_SINT,    BYTE,          NONE),
87   V_(R8_USCALED, UNSIGNED_BYTE, NONE),
88   V_(R8_SSCALED, BYTE,          NONE),
89
90   _T(A8_UNORM, A8, NONE),
91   _T(L8_UNORM, L8, NONE),
92   _T(I8_UNORM, I8, NONE),
93
94   /* 16-bit */
95   V_(R16_UNORM,   UNSIGNED_SHORT, NONE),
96   V_(R16_SNORM,   SHORT,          NONE),
97   V_(R16_UINT,    UNSIGNED_SHORT, NONE),
98   V_(R16_SINT,    SHORT,          NONE),
99   V_(R16_USCALED, UNSIGNED_SHORT, NONE),
100   V_(R16_SSCALED, SHORT,          NONE),
101   V_(R16_FLOAT,   HALF_FLOAT,     NONE),
102
103   _T(B4G4R4A4_UNORM, A4R4G4B4, A4R4G4B4),
104   _T(B4G4R4X4_UNORM, X4R4G4B4, X4R4G4B4),
105
106   _T(Z16_UNORM,      D16,      A4R4G4B4),
107   _T(B5G6R5_UNORM,   R5G6B5,   R5G6B5),
108   _T(B5G5R5A1_UNORM, A1R5G5B5, A1R5G5B5),
109   _T(B5G5R5X1_UNORM, X1R5G5B5, X1R5G5B5),
110
111   V_(R8G8_UNORM,   UNSIGNED_BYTE,  NONE),
112   V_(R8G8_SNORM,   BYTE,           NONE),
113   V_(R8G8_UINT,    UNSIGNED_BYTE,  NONE),
114   V_(R8G8_SINT,    BYTE,           NONE),
115   V_(R8G8_USCALED, UNSIGNED_BYTE,  NONE),
116   V_(R8G8_SSCALED, BYTE,           NONE),
117
118   /* 24-bit */
119   V_(R8G8B8_UNORM,   UNSIGNED_BYTE, NONE),
120   V_(R8G8B8_SNORM,   BYTE,          NONE),
121   V_(R8G8B8_UINT,    UNSIGNED_BYTE, NONE),
122   V_(R8G8B8_SINT,    BYTE,          NONE),
123   V_(R8G8B8_USCALED, UNSIGNED_BYTE, NONE),
124   V_(R8G8B8_SSCALED, BYTE,          NONE),
125
126   /* 32-bit */
127   V_(R32_UNORM,   UNSIGNED_INT, NONE),
128   V_(R32_SNORM,   INT,          NONE),
129   V_(R32_SINT,    INT,          NONE),
130   V_(R32_UINT,    UNSIGNED_INT, NONE),
131   V_(R32_USCALED, UNSIGNED_INT, NONE),
132   V_(R32_SSCALED, INT,          NONE),
133   V_(R32_FLOAT,   FLOAT,        NONE),
134   V_(R32_FIXED,   FIXED,        NONE),
135
136   V_(R16G16_UNORM,   UNSIGNED_SHORT, NONE),
137   V_(R16G16_SNORM,   SHORT,          NONE),
138   V_(R16G16_UINT,    UNSIGNED_SHORT, NONE),
139   V_(R16G16_SINT,    SHORT,          NONE),
140   V_(R16G16_USCALED, UNSIGNED_SHORT, NONE),
141   V_(R16G16_SSCALED, SHORT,          NONE),
142   V_(R16G16_FLOAT,   HALF_FLOAT,     NONE),
143
144   V_(A8B8G8R8_UNORM,   UNSIGNED_BYTE, NONE),
145
146   V_(R8G8B8A8_UNORM,   UNSIGNED_BYTE, A8B8G8R8),
147   V_(R8G8B8A8_SNORM,   BYTE,          A8B8G8R8),
148   _T(R8G8B8X8_UNORM,   X8B8G8R8,      X8B8G8R8),
149   V_(R8G8B8A8_UINT,    UNSIGNED_BYTE, A8B8G8R8),
150   V_(R8G8B8A8_SINT,    BYTE,          A8B8G8R8),
151   V_(R8G8B8A8_USCALED, UNSIGNED_BYTE, A8B8G8R8),
152   V_(R8G8B8A8_SSCALED, BYTE,          A8B8G8R8),
153
154   _T(R8G8B8A8_UNORM, A8B8G8R8, A8B8G8R8),
155   _T(R8G8B8X8_UNORM, X8B8G8R8, X8B8G8R8),
156
157   _T(B8G8R8A8_UNORM, A8R8G8B8, A8R8G8B8),
158   _T(B8G8R8X8_UNORM, X8R8G8B8, X8R8G8B8),
159
160   V_(R10G10B10A2_UNORM,   UNSIGNED_INT_10_10_10_2, NONE),
161   V_(R10G10B10A2_SNORM,   INT_10_10_10_2,          NONE),
162   V_(R10G10B10A2_USCALED, UNSIGNED_INT_10_10_10_2, NONE),
163   V_(R10G10B10A2_SSCALED, INT_10_10_10_2,          NONE),
164
165   _T(X8Z24_UNORM,       D24S8, A8R8G8B8),
166   _T(S8_UINT_Z24_UNORM, D24S8, A8R8G8B8),
167
168   /* 48-bit */
169   V_(R16G16B16_UNORM,   UNSIGNED_SHORT, NONE),
170   V_(R16G16B16_SNORM,   SHORT,          NONE),
171   V_(R16G16B16_UINT,    UNSIGNED_SHORT, NONE),
172   V_(R16G16B16_SINT,    SHORT,          NONE),
173   V_(R16G16B16_USCALED, UNSIGNED_SHORT, NONE),
174   V_(R16G16B16_SSCALED, SHORT,          NONE),
175   V_(R16G16B16_FLOAT,   HALF_FLOAT,     NONE),
176
177   /* 64-bit */
178   V_(R16G16B16A16_UNORM,   UNSIGNED_SHORT, NONE),
179   V_(R16G16B16A16_SNORM,   SHORT,          NONE),
180   V_(R16G16B16A16_UINT,    UNSIGNED_SHORT, NONE),
181   V_(R16G16B16A16_SINT,    SHORT,          NONE),
182   V_(R16G16B16A16_USCALED, UNSIGNED_SHORT, NONE),
183   V_(R16G16B16A16_SSCALED, SHORT,          NONE),
184   V_(R16G16B16A16_FLOAT,   HALF_FLOAT,     NONE),
185
186   V_(R32G32_UNORM,   UNSIGNED_INT, NONE),
187   V_(R32G32_SNORM,   INT,          NONE),
188   V_(R32G32_UINT,    UNSIGNED_INT, NONE),
189   V_(R32G32_SINT,    INT,          NONE),
190   V_(R32G32_USCALED, UNSIGNED_INT, NONE),
191   V_(R32G32_SSCALED, INT,          NONE),
192   V_(R32G32_FLOAT,   FLOAT,        NONE),
193   V_(R32G32_FIXED,   FIXED,        NONE),
194
195   /* 96-bit */
196   V_(R32G32B32_UNORM,   UNSIGNED_INT, NONE),
197   V_(R32G32B32_SNORM,   INT,          NONE),
198   V_(R32G32B32_UINT,    UNSIGNED_INT, NONE),
199   V_(R32G32B32_SINT,    INT,          NONE),
200   V_(R32G32B32_USCALED, UNSIGNED_INT, NONE),
201   V_(R32G32B32_SSCALED, INT,          NONE),
202   V_(R32G32B32_FLOAT,   FLOAT,        NONE),
203   V_(R32G32B32_FIXED,   FIXED,        NONE),
204
205   /* 128-bit */
206   V_(R32G32B32A32_UNORM,   UNSIGNED_INT, NONE),
207   V_(R32G32B32A32_SNORM,   INT,          NONE),
208   V_(R32G32B32A32_UINT,    UNSIGNED_INT, NONE),
209   V_(R32G32B32A32_SINT,    INT,          NONE),
210   V_(R32G32B32A32_USCALED, UNSIGNED_INT, NONE),
211   V_(R32G32B32A32_SSCALED, INT,          NONE),
212   V_(R32G32B32A32_FLOAT,   FLOAT,        NONE),
213   V_(R32G32B32A32_FIXED,   FIXED,        NONE),
214
215   /* compressed */
216   _T(ETC1_RGB8, ETC1, NONE),
217
218   _T(DXT1_RGB,  DXT1,      NONE),
219   _T(DXT1_RGBA, DXT1,      NONE),
220   _T(DXT3_RGBA, DXT2_DXT3, NONE),
221   _T(DXT3_RGBA, DXT2_DXT3, NONE),
222   _T(DXT5_RGBA, DXT4_DXT5, NONE),
223
224   /* YUV */
225   _T(YUYV, YUY2, YUY2),
226   _T(UYVY, UYVY, NONE),
227};
228
229uint32_t
230translate_texture_format(enum pipe_format fmt)
231{
232   /* XXX with TEXTURE_FORMAT_EXT and swizzle on newer chips we can
233    * support much more */
234   if (!formats[fmt].present)
235      return ETNA_NO_MATCH;
236
237   return formats[fmt].tex;
238}
239
240uint32_t
241translate_rs_format(enum pipe_format fmt)
242{
243   if (!formats[fmt].present)
244      return ETNA_NO_MATCH;
245
246   if (formats[fmt].rs == ETNA_NO_MATCH)
247      return ETNA_NO_MATCH;
248
249   return RS_FORMAT(formats[fmt].rs);
250}
251
252int
253translate_rs_format_rb_swap(enum pipe_format fmt)
254{
255   assert(formats[fmt].present);
256
257   return formats[fmt].rs & RS_FORMAT_RB_SWAP;
258}
259
260/* Return type flags for vertex element format */
261uint32_t
262translate_vertex_format_type(enum pipe_format fmt)
263{
264   if (!formats[fmt].present)
265      return ETNA_NO_MATCH;
266
267   return formats[fmt].vtx;
268}
269