1 /*
2 * Copyright © 2015 Intel Corporation
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
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 */
23
24 /**
25 * \name mesa_formats.cpp
26 *
27 * Verify that all mesa formats are handled in certain functions and that
28 * the format info table is sane.
29 *
30 */
31
32 #include <gtest/gtest.h>
33
34 #include "main/formats.h"
35 #include "main/glformats.h"
36 #include "main/format_unpack.h"
37 #include "main/format_pack.h"
38
39 /**
40 * Debug/test: check that all uncompressed formats are handled in the
41 * _mesa_uncompressed_format_to_type_and_comps() function. When new pixel
42 * formats are added to Mesa, that function needs to be updated.
43 */
TEST(MesaFormatsTest,FormatTypeAndComps)44 TEST(MesaFormatsTest, FormatTypeAndComps)
45 {
46 for (int fi = MESA_FORMAT_NONE + 1; fi < MESA_FORMAT_COUNT; ++fi) {
47 mesa_format f = (mesa_format) fi;
48 SCOPED_TRACE(_mesa_get_format_name(f));
49
50 if (!_mesa_get_format_name(f))
51 continue;
52
53 /* This function will emit a problem/warning if the format is
54 * not handled.
55 */
56 if (!_mesa_is_format_compressed(f)) {
57 GLenum datatype = 0;
58 GLuint comps = 0;
59
60 /* If the datatype is zero, the format was not handled */
61 _mesa_uncompressed_format_to_type_and_comps(f, &datatype, &comps);
62 EXPECT_NE(datatype, (GLenum)0);
63 }
64
65 }
66 }
67
68 /**
69 * Do sanity checking of the format info table.
70 */
TEST(MesaFormatsTest,FormatSanity)71 TEST(MesaFormatsTest, FormatSanity)
72 {
73 for (int fi = 0; fi < MESA_FORMAT_COUNT; ++fi) {
74 mesa_format f = (mesa_format) fi;
75 SCOPED_TRACE(_mesa_get_format_name(f));
76 if (!_mesa_get_format_name(f))
77 continue;
78
79 GLenum datatype = _mesa_get_format_datatype(f);
80 GLint r = _mesa_get_format_bits(f, GL_RED_BITS);
81 GLint g = _mesa_get_format_bits(f, GL_GREEN_BITS);
82 GLint b = _mesa_get_format_bits(f, GL_BLUE_BITS);
83 GLint a = _mesa_get_format_bits(f, GL_ALPHA_BITS);
84 GLint l = _mesa_get_format_bits(f, GL_TEXTURE_LUMINANCE_SIZE);
85 GLint i = _mesa_get_format_bits(f, GL_TEXTURE_INTENSITY_SIZE);
86
87 /* Note: Z32_FLOAT_X24S8 has datatype of GL_NONE */
88 EXPECT_TRUE(datatype == GL_NONE ||
89 datatype == GL_UNSIGNED_NORMALIZED ||
90 datatype == GL_SIGNED_NORMALIZED ||
91 datatype == GL_UNSIGNED_INT ||
92 datatype == GL_INT ||
93 datatype == GL_FLOAT);
94
95 if (r > 0 && !_mesa_is_format_compressed(f)) {
96 GLint bytes = _mesa_get_format_bytes(f);
97 EXPECT_LE((r+g+b+a) / 8, bytes);
98 }
99
100 /* Determines if the base format has a channel [rgba] or property [li].
101 * > indicates existance
102 * == indicates non-existance
103 */
104 #define HAS_PROP(rop,gop,bop,aop,lop,iop) \
105 do { \
106 EXPECT_TRUE(r rop 0); \
107 EXPECT_TRUE(g gop 0); \
108 EXPECT_TRUE(b bop 0); \
109 EXPECT_TRUE(a aop 0); \
110 EXPECT_TRUE(l lop 0); \
111 EXPECT_TRUE(i iop 0); \
112 } while(0)
113
114 switch (_mesa_get_format_base_format(f)) {
115 case GL_RGBA:
116 HAS_PROP(>,>,>,>,==,==);
117 break;
118 case GL_RGB:
119 HAS_PROP(>,>,>,==,==,==);
120 break;
121 case GL_RG:
122 HAS_PROP(>,>,==,==,==,==);
123 break;
124 case GL_RED:
125 HAS_PROP(>,==,==,==,==,==);
126 break;
127 case GL_LUMINANCE:
128 HAS_PROP(==,==,==,==,>,==);
129 break;
130 case GL_INTENSITY:
131 HAS_PROP(==,==,==,==,==,>);
132 break;
133 default:
134 break;
135 }
136
137 #undef HAS_PROP
138
139 }
140 }
141
TEST(MesaFormatsTest,IntensityToRed)142 TEST(MesaFormatsTest, IntensityToRed)
143 {
144 EXPECT_EQ(_mesa_get_intensity_format_red(MESA_FORMAT_I_UNORM8),
145 MESA_FORMAT_R_UNORM8);
146 EXPECT_EQ(_mesa_get_intensity_format_red(MESA_FORMAT_I_SINT32),
147 MESA_FORMAT_R_SINT32);
148 EXPECT_EQ(_mesa_get_intensity_format_red(MESA_FORMAT_R8G8B8A8_UNORM),
149 MESA_FORMAT_R8G8B8A8_UNORM);
150 }
151
fffat_wrap(GLenum format,GLenum type)152 static mesa_format fffat_wrap(GLenum format, GLenum type)
153 {
154 uint32_t f = _mesa_format_from_format_and_type(format, type);
155 if (_mesa_format_is_mesa_array_format(f))
156 f = _mesa_format_from_array_format((mesa_array_format)f);
157 return (mesa_format)f;
158 }
159
TEST(MesaFormatsTest,FormatFromFormatAndType)160 TEST(MesaFormatsTest, FormatFromFormatAndType)
161 {
162 EXPECT_EQ(fffat_wrap(GL_RGBA, GL_SHORT),
163 MESA_FORMAT_RGBA_SNORM16);
164 EXPECT_EQ(fffat_wrap(GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT),
165 MESA_FORMAT_Z_UNORM16);
166 EXPECT_EQ(fffat_wrap(GL_STENCIL_INDEX, GL_UNSIGNED_BYTE),
167 MESA_FORMAT_S_UINT8);
168
169 /* Should return an array format, but not a proper MESA_FORMAT. */
170 EXPECT_TRUE(_mesa_format_is_mesa_array_format(_mesa_format_from_format_and_type(GL_DEPTH_COMPONENT,
171 GL_BYTE)));
172 }
173
TEST(MesaFormatsTest,FormatMatchesFormatAndType)174 TEST(MesaFormatsTest, FormatMatchesFormatAndType)
175 {
176 EXPECT_TRUE(_mesa_format_matches_format_and_type(MESA_FORMAT_RGBA_UNORM16,
177 GL_RGBA,
178 GL_UNSIGNED_SHORT, false,
179 NULL));
180 EXPECT_TRUE(_mesa_format_matches_format_and_type(MESA_FORMAT_S_UINT8,
181 GL_STENCIL_INDEX,
182 GL_UNSIGNED_BYTE, false,
183 NULL));
184 EXPECT_TRUE(_mesa_format_matches_format_and_type(MESA_FORMAT_Z_UNORM16,
185 GL_DEPTH_COMPONENT,
186 GL_UNSIGNED_SHORT, false,
187 NULL));
188 }
189
190 static uint32_t
test_unpack_r8i(int8_t val)191 test_unpack_r8i(int8_t val)
192 {
193 uint32_t result[4];
194 _mesa_unpack_uint_rgba_row(MESA_FORMAT_R_SINT8, 1, &val, &result);
195 return result[0];
196 }
197
198 static uint32_t
test_unpack_r32ui(uint32_t val)199 test_unpack_r32ui(uint32_t val)
200 {
201 uint32_t result[4];
202 _mesa_unpack_uint_rgba_row(MESA_FORMAT_R_UINT32, 1, &val, &result);
203 return result[0];
204 }
205
TEST(MesaFormatsTest,UnpackRGBAUintRow)206 TEST(MesaFormatsTest, UnpackRGBAUintRow)
207 {
208 EXPECT_EQ(test_unpack_r8i(0), 0);
209 EXPECT_EQ(test_unpack_r8i(1), 1);
210 EXPECT_EQ(test_unpack_r8i(0xff), 0xffffffff);
211 EXPECT_EQ(test_unpack_r32ui(0), 0);
212 EXPECT_EQ(test_unpack_r32ui(0xffffffff), 0xffffffff);
213 }
214
TEST(MesaFormatsTest,UnpackRGBAUbyteRowRGBA32F)215 TEST(MesaFormatsTest, UnpackRGBAUbyteRowRGBA32F)
216 {
217 float val[4] = {0, 0.5, -1, 2};
218 uint8_t result[4];
219 _mesa_unpack_ubyte_rgba_row(MESA_FORMAT_RGBA_FLOAT32, 1, &val, &result);
220 EXPECT_EQ(result[0], 0);
221 EXPECT_EQ(result[1], 0x80);
222 EXPECT_EQ(result[2], 0);
223 EXPECT_EQ(result[3], 0xff);
224 }
225
TEST(MesaFormatsTest,UnpackRGBAUbyteRowRGBA4)226 TEST(MesaFormatsTest, UnpackRGBAUbyteRowRGBA4)
227 {
228 uint16_t val = (1 << 0) | (0x3f << 5) | (0x10 << 11);
229 uint8_t result[4];
230 _mesa_unpack_ubyte_rgba_row(MESA_FORMAT_R5G6B5_UNORM, 1, &val, &result);
231 EXPECT_EQ(result[0], 0x08);
232 EXPECT_EQ(result[1], 0xff);
233 EXPECT_EQ(result[2], 0x84);
234 EXPECT_EQ(result[3], 0xff);
235 }
236
237 static float
test_unpack_floatz_z32f(float val)238 test_unpack_floatz_z32f(float val)
239 {
240 float result;
241 _mesa_unpack_float_z_row(MESA_FORMAT_Z_FLOAT32, 1, &val, &result);
242 return result;
243 }
244
TEST(MesaFormatsTest,UnpackFloatZRow)245 TEST(MesaFormatsTest, UnpackFloatZRow)
246 {
247 EXPECT_EQ(test_unpack_floatz_z32f(0.5), 0.5);
248 EXPECT_EQ(test_unpack_floatz_z32f(-1.0), -1.0);
249 EXPECT_EQ(test_unpack_floatz_z32f(2.0), 2.0);
250 }
251
252 static uint32_t
test_unpack_uintz_z32f(float val)253 test_unpack_uintz_z32f(float val)
254 {
255 uint32_t result;
256 _mesa_unpack_uint_z_row(MESA_FORMAT_Z_FLOAT32, 1, &val, &result);
257 return result;
258 }
259
TEST(MesaFormatsTest,UnpackUintZRow)260 TEST(MesaFormatsTest, UnpackUintZRow)
261 {
262 EXPECT_EQ(test_unpack_uintz_z32f(0.5), 0x7fffffff);
263 EXPECT_EQ(test_unpack_uintz_z32f(-1.0), 0);
264 EXPECT_EQ(test_unpack_uintz_z32f(2.0), 0xffffffff);
265 }
266
267 /* It's easy to have precision issues packing 32-bit floats to unorm. */
TEST(MesaFormatsTest,PackFloatZ)268 TEST(MesaFormatsTest, PackFloatZ)
269 {
270 float val = 0.571428597f;
271 uint32_t result;
272 _mesa_pack_float_z_row(MESA_FORMAT_Z_UNORM32, 1, &val, &result);
273 EXPECT_EQ(result, 0x924924ff);
274 }
275
TEST(MesaFormatsTest,PackUbyteRGBARounding)276 TEST(MesaFormatsTest, PackUbyteRGBARounding)
277 {
278 for (int i = 0; i <= 255; i++) {
279 uint8_t val[4] = {(uint8_t)i, 0, 0, 0};
280 uint16_t result;
281 _mesa_pack_ubyte_rgba_row(MESA_FORMAT_R5G6B5_UNORM, 1, val, &result);
282 EXPECT_EQ(result, (i * 31 + 127) / 255);
283 }
284 }
285