progs/gallium/unit/u_format_test.c

   1 /**************************************************************************
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   3  * Copyright 2009-2010 VMware, Inc.
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   7  * copy of this software and associated documentation files (the
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  11  * permit persons to whom the Software is furnished to do so, subject to
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  13  *
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  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
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  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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  26  **************************************************************************/
  27
  28
  29 #include <stdlib.h>
  30 #include <stdio.h>
  31
  32 #include "util/u_format.h"
  33 #include "util/u_format_pack.h"
  34
  35
  36 #define MAX_PACKED_BYTES 4
  37
  38
  39 /**
  40  * A (packed, unpacked) color pair.
  41  */
  42 struct util_format_test_case
  43 {
  44    enum pipe_format format;
  45
  46    /**
  47     * Mask of the bits that actually meaningful data. Used to mask out the
  48     * "X" channels.
  49     */
  50    uint8_t mask[MAX_PACKED_BYTES];
  51
  52    uint8_t packed[MAX_PACKED_BYTES];
  53
  54    /**
  55     * RGBA.
  56     */
  57    double unpacked[4];
  58 };
  59
  60
  61 /*
  62  * Helper macros to create the packed bytes for longer words.
  63  */
  64
  65 #define PACKED_1x8(x) {x, 0, 0, 0}
  66 #define PACKED_4x8(x, y, z, w) {x, y, z, w}
  67 #define PACKED_1x32(x) {(x) & 0xff, ((x) >> 8) & 0xff, ((x) >> 16) & 0xff, ((x) >> 24) & 0xff}
  68 #define PACKED_1x16(x) {(x) & 0xff, ((x) >> 8) & 0xff, 0, 0}
  69
  70
  71 /**
  72  * Test cases.
  73  *
  74  * These were manually entered. We could generate these
  75  *
  76  * To keep this to a we cover only the corner cases, which should produce
  77  * good enough coverage since that pixel format transformations are afine for
  78  * non SRGB formats.
  79  */
  80 static const struct util_format_test_case
  81 test_cases[] =
  82 {
  83    {PIPE_FORMAT_B5G6R5_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0x0000), {0.0, 0.0, 0.0, 1.0}},
  84    {PIPE_FORMAT_B5G6R5_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0x001f), {0.0, 0.0, 1.0, 1.0}},
  85    {PIPE_FORMAT_B5G6R5_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0x07e0), {0.0, 1.0, 0.0, 1.0}},
  86    {PIPE_FORMAT_B5G6R5_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0xf800), {1.0, 0.0, 0.0, 1.0}},
  87    {PIPE_FORMAT_B5G6R5_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0xffff), {1.0, 1.0, 1.0, 1.0}},
  88
  89    {PIPE_FORMAT_B5G5R5A1_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0x0000), {0.0, 0.0, 0.0, 0.0}},
  90    {PIPE_FORMAT_B5G5R5A1_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0x001f), {0.0, 0.0, 1.0, 0.0}},
  91    {PIPE_FORMAT_B5G5R5A1_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0x03e0), {0.0, 1.0, 0.0, 0.0}},
  92    {PIPE_FORMAT_B5G5R5A1_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0x7c00), {1.0, 0.0, 0.0, 0.0}},
  93    {PIPE_FORMAT_B5G5R5A1_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0x8000), {0.0, 0.0, 0.0, 1.0}},
  94    {PIPE_FORMAT_B5G5R5A1_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0xffff), {1.0, 1.0, 1.0, 1.0}},
  95
  96    {PIPE_FORMAT_B4G4R4A4_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0x0000), {0.0, 0.0, 0.0, 0.0}},
  97    {PIPE_FORMAT_B4G4R4A4_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0x000f), {0.0, 0.0, 1.0, 0.0}},
  98    {PIPE_FORMAT_B4G4R4A4_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0x00f0), {0.0, 1.0, 0.0, 0.0}},
  99    {PIPE_FORMAT_B4G4R4A4_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0x0f00), {1.0, 0.0, 0.0, 0.0}},
 100    {PIPE_FORMAT_B4G4R4A4_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0xf000), {0.0, 0.0, 0.0, 1.0}},
 101    {PIPE_FORMAT_B4G4R4A4_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0xffff), {1.0, 1.0, 1.0, 1.0}},
 102
 103    {PIPE_FORMAT_R10G10B10A2_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x00000000), {0.0, 0.0, 0.0, 0.0}},
 104    {PIPE_FORMAT_R10G10B10A2_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x000003ff), {1.0, 0.0, 0.0, 0.0}},
 105    {PIPE_FORMAT_R10G10B10A2_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x000ffc00), {0.0, 1.0, 0.0, 0.0}},
 106    {PIPE_FORMAT_R10G10B10A2_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x3ff00000), {0.0, 0.0, 1.0, 0.0}},
 107    {PIPE_FORMAT_R10G10B10A2_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0xc0000000), {0.0, 0.0, 0.0, 1.0}},
 108    {PIPE_FORMAT_R10G10B10A2_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0xffffffff), {1.0, 1.0, 1.0, 1.0}},
 109
 110    {PIPE_FORMAT_B8G8R8A8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x00000000), {0.0, 0.0, 0.0, 0.0}},
 111    {PIPE_FORMAT_B8G8R8A8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x000000ff), {0.0, 0.0, 1.0, 0.0}},
 112    {PIPE_FORMAT_B8G8R8A8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x0000ff00), {0.0, 1.0, 0.0, 0.0}},
 113    {PIPE_FORMAT_B8G8R8A8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x00ff0000), {1.0, 0.0, 0.0, 0.0}},
 114    {PIPE_FORMAT_B8G8R8A8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0xff000000), {0.0, 0.0, 0.0, 1.0}},
 115    {PIPE_FORMAT_B8G8R8A8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0xffffffff), {1.0, 1.0, 1.0, 1.0}},
 116
 117    {PIPE_FORMAT_B8G8R8X8_UNORM, PACKED_1x32(0x00ffffff), PACKED_1x32(0x00000000), {0.0, 0.0, 0.0, 1.0}},
 118    {PIPE_FORMAT_B8G8R8X8_UNORM, PACKED_1x32(0x00ffffff), PACKED_1x32(0x000000ff), {0.0, 0.0, 1.0, 1.0}},
 119    {PIPE_FORMAT_B8G8R8X8_UNORM, PACKED_1x32(0x00ffffff), PACKED_1x32(0x0000ff00), {0.0, 1.0, 0.0, 1.0}},
 120    {PIPE_FORMAT_B8G8R8X8_UNORM, PACKED_1x32(0x00ffffff), PACKED_1x32(0x00ff0000), {1.0, 0.0, 0.0, 1.0}},
 121    {PIPE_FORMAT_B8G8R8X8_UNORM, PACKED_1x32(0x00ffffff), PACKED_1x32(0xff000000), {0.0, 0.0, 0.0, 1.0}},
 122    {PIPE_FORMAT_B8G8R8X8_UNORM, PACKED_1x32(0x00ffffff), PACKED_1x32(0xffffffff), {1.0, 1.0, 1.0, 1.0}},
 123
 124    {PIPE_FORMAT_A8R8G8B8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x00000000), {0.0, 0.0, 0.0, 0.0}},
 125    {PIPE_FORMAT_A8R8G8B8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x000000ff), {0.0, 0.0, 0.0, 1.0}},
 126    {PIPE_FORMAT_A8R8G8B8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x0000ff00), {1.0, 0.0, 0.0, 0.0}},
 127    {PIPE_FORMAT_A8R8G8B8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x00ff0000), {0.0, 1.0, 0.0, 0.0}},
 128    {PIPE_FORMAT_A8R8G8B8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0xff000000), {0.0, 0.0, 1.0, 0.0}},
 129    {PIPE_FORMAT_A8R8G8B8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0xffffffff), {1.0, 1.0, 1.0, 1.0}},
 130
 131    {PIPE_FORMAT_X8R8G8B8_UNORM, PACKED_1x32(0xffffff00), PACKED_1x32(0x00000000), {0.0, 0.0, 0.0, 1.0}},
 132    {PIPE_FORMAT_X8R8G8B8_UNORM, PACKED_1x32(0xffffff00), PACKED_1x32(0x000000ff), {0.0, 0.0, 0.0, 1.0}},
 133    {PIPE_FORMAT_X8R8G8B8_UNORM, PACKED_1x32(0xffffff00), PACKED_1x32(0x0000ff00), {1.0, 0.0, 0.0, 1.0}},
 134    {PIPE_FORMAT_X8R8G8B8_UNORM, PACKED_1x32(0xffffff00), PACKED_1x32(0x00ff0000), {0.0, 1.0, 0.0, 1.0}},
 135    {PIPE_FORMAT_X8R8G8B8_UNORM, PACKED_1x32(0xffffff00), PACKED_1x32(0xff000000), {0.0, 0.0, 1.0, 1.0}},
 136    {PIPE_FORMAT_X8R8G8B8_UNORM, PACKED_1x32(0xffffff00), PACKED_1x32(0xffffffff), {1.0, 1.0, 1.0, 1.0}},
 137
 138 #if 0
 139    {PIPE_FORMAT_R8G8B8A8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x00000000), {0.0, 0.0, 0.0, 0.0}},
 140    {PIPE_FORMAT_R8G8B8A8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x000000ff), {0.0, 0.0, 0.0, 1.0}},
 141    {PIPE_FORMAT_R8G8B8A8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x0000ff00), {0.0, 0.0, 1.0, 0.0}},
 142    {PIPE_FORMAT_R8G8B8A8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x00ff0000), {0.0, 1.0, 0.0, 0.0}},
 143    {PIPE_FORMAT_R8G8B8A8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0xff000000), {1.0, 0.0, 0.0, 0.0}},
 144    {PIPE_FORMAT_R8G8B8A8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0xffffffff), {1.0, 1.0, 1.0, 1.0}},
 145 #endif
 146
 147    {PIPE_FORMAT_A8R8G8B8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x00000000), {0.0, 0.0, 0.0, 0.0}},
 148    {PIPE_FORMAT_A8R8G8B8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x000000ff), {0.0, 0.0, 0.0, 1.0}},
 149    {PIPE_FORMAT_A8R8G8B8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x0000ff00), {1.0, 0.0, 0.0, 0.0}},
 150    {PIPE_FORMAT_A8R8G8B8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x00ff0000), {0.0, 1.0, 0.0, 0.0}},
 151    {PIPE_FORMAT_A8R8G8B8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0xff000000), {0.0, 0.0, 1.0, 0.0}},
 152    {PIPE_FORMAT_A8R8G8B8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0xffffffff), {1.0, 1.0, 1.0, 1.0}},
 153
 154    {PIPE_FORMAT_L8_UNORM, PACKED_1x8(0xff), PACKED_1x8(0x00), {0.0, 0.0, 0.0, 1.0}},
 155    {PIPE_FORMAT_L8_UNORM, PACKED_1x8(0xff), PACKED_1x8(0xff), {1.0, 1.0, 1.0, 1.0}},
 156
 157    {PIPE_FORMAT_A8_UNORM, PACKED_1x8(0xff), PACKED_1x8(0x00), {0.0, 0.0, 0.0, 0.0}},
 158    {PIPE_FORMAT_A8_UNORM, PACKED_1x8(0xff), PACKED_1x8(0xff), {0.0, 0.0, 0.0, 1.0}},
 159
 160    {PIPE_FORMAT_I8_UNORM, PACKED_1x8(0xff), PACKED_1x8(0x00), {0.0, 0.0, 0.0, 0.0}},
 161    {PIPE_FORMAT_I8_UNORM, PACKED_1x8(0xff), PACKED_1x8(0xff), {1.0, 1.0, 1.0, 1.0}},
 162
 163    {PIPE_FORMAT_L8A8_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0x0000), {0.0, 0.0, 0.0, 0.0}},
 164    {PIPE_FORMAT_L8A8_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0x00ff), {1.0, 1.0, 1.0, 0.0}},
 165    {PIPE_FORMAT_L8A8_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0xff00), {0.0, 0.0, 0.0, 1.0}},
 166    {PIPE_FORMAT_L8A8_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0xffff), {1.0, 1.0, 1.0, 1.0}},
 167
 168    {PIPE_FORMAT_L16_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0x0000), {0.0, 0.0, 0.0, 1.0}},
 169    {PIPE_FORMAT_L16_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0xffff), {1.0, 1.0, 1.0, 1.0}},
 170
 171    {PIPE_FORMAT_R8G8B8A8_SNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x00000000), { 0.0,  0.0,  0.0,  0.0}},
 172    {PIPE_FORMAT_R8G8B8A8_SNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x0000007f), { 1.0,  0.0,  0.0,  0.0}},
 173    {PIPE_FORMAT_R8G8B8A8_SNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x00000081), {-1.0,  0.0,  0.0,  0.0}},
 174    {PIPE_FORMAT_R8G8B8A8_SNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x00007f00), { 0.0,  1.0,  0.0,  0.0}},
 175    {PIPE_FORMAT_R8G8B8A8_SNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x00008100), { 0.0, -1.0,  0.0,  0.0}},
 176    {PIPE_FORMAT_R8G8B8A8_SNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x007f0000), { 0.0,  0.0,  1.0,  0.0}},
 177    {PIPE_FORMAT_R8G8B8A8_SNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x00810000), { 0.0,  0.0, -1.0,  0.0}},
 178    {PIPE_FORMAT_R8G8B8A8_SNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x7f000000), { 0.0,  0.0,  0.0,  1.0}},
 179    {PIPE_FORMAT_R8G8B8A8_SNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x81000000), { 0.0,  0.0,  0.0, -1.0}},
 180
 181    {PIPE_FORMAT_R8SG8SB8UX8U_NORM, PACKED_1x32(0x00ffffff), PACKED_1x32(0x00000000), { 0.0,  0.0, 0.0, 1.0}},
 182    {PIPE_FORMAT_R8SG8SB8UX8U_NORM, PACKED_1x32(0x00ffffff), PACKED_1x32(0x0000007f), { 1.0,  0.0, 0.0, 1.0}},
 183    {PIPE_FORMAT_R8SG8SB8UX8U_NORM, PACKED_1x32(0x00ffffff), PACKED_1x32(0x00000081), {-1.0,  0.0, 0.0, 1.0}},
 184    {PIPE_FORMAT_R8SG8SB8UX8U_NORM, PACKED_1x32(0x00ffffff), PACKED_1x32(0x00007f00), { 0.0,  1.0, 0.0, 1.0}},
 185    {PIPE_FORMAT_R8SG8SB8UX8U_NORM, PACKED_1x32(0x00ffffff), PACKED_1x32(0x00008100), { 0.0, -1.0, 0.0, 1.0}},
 186    {PIPE_FORMAT_R8SG8SB8UX8U_NORM, PACKED_1x32(0x00ffffff), PACKED_1x32(0x00ff0000), { 0.0,  0.0, 1.0, 1.0}},
 187    {PIPE_FORMAT_R8SG8SB8UX8U_NORM, PACKED_1x32(0x00ffffff), PACKED_1x32(0xff000000), { 0.0,  0.0, 0.0, 1.0}},
 188
 189    {PIPE_FORMAT_R5SG5SB6U_NORM, PACKED_1x16(0xffff), PACKED_1x16(0x0000), { 0.0,  0.0, 0.0, 1.0}},
 190    {PIPE_FORMAT_R5SG5SB6U_NORM, PACKED_1x16(0xffff), PACKED_1x16(0x000f), { 1.0,  0.0, 0.0, 1.0}},
 191    {PIPE_FORMAT_R5SG5SB6U_NORM, PACKED_1x16(0xffff), PACKED_1x16(0x0011), {-1.0,  0.0, 0.0, 1.0}},
 192    {PIPE_FORMAT_R5SG5SB6U_NORM, PACKED_1x16(0xffff), PACKED_1x16(0x01e0), { 0.0,  1.0, 0.0, 1.0}},
 193    {PIPE_FORMAT_R5SG5SB6U_NORM, PACKED_1x16(0xffff), PACKED_1x16(0x0220), { 0.0, -1.0, 0.0, 1.0}},
 194    {PIPE_FORMAT_R5SG5SB6U_NORM, PACKED_1x16(0xffff), PACKED_1x16(0xfc00), { 0.0,  0.0, 1.0, 1.0}},
 195 };
 196
 197
 198 static boolean
 199 test_format_unpack(const struct util_format_test_case *test)
 200 {
 201    float unpacked[4];
 202    unsigned i;
 203    boolean success;
 204
 205    util_format_unpack_4f(test->format, unpacked, test->packed);
 206
 207    success = TRUE;
 208    for (i = 0; i < 4; ++i)
 209       if (test->unpacked[i] != unpacked[i])
 210          success = FALSE;
 211
 212    if (!success) {
 213       printf("FAILED: (%f %f %f %f) obtained\n", unpacked[0], unpacked[1], unpacked[2], unpacked[3]);
 214       printf("        (%f %f %f %f) expected\n", test->unpacked[0], test->unpacked[1], test->unpacked[2], test->unpacked[3]);
 215    }
 216
 217    return success;
 218 }
 219
 220
 221 static boolean
 222 test_format_pack(const struct util_format_test_case *test)
 223 {
 224    uint8_t packed[MAX_PACKED_BYTES];
 225    unsigned i;
 226    boolean success;
 227
 228    memset(packed, 0, sizeof packed);
 229
 230    util_format_pack_4f(test->format, packed, test->unpacked[0], test->unpacked[1], test->unpacked[2], test->unpacked[3]);
 231
 232    success = TRUE;
 233    for (i = 0; i < MAX_PACKED_BYTES; ++i)
 234       if ((test->packed[i] & test->mask[i]) != (packed[i] & test->mask[i]))
 235          success = FALSE;
 236
 237    if (!success) {
 238       printf("FAILED: (%02x %02x %02x %02x) obtained\n", packed[0], packed[1], packed[2], packed[3]);
 239       printf("        (%02x %02x %02x %02x) expected\n", test->packed[0], test->packed[1], test->packed[2], test->packed[3]);
 240    }
 241
 242    return success;
 243 }
 244
 245
 246 static boolean
 247 test_all(void)
 248 {
 249    enum pipe_format last_format = PIPE_FORMAT_NONE;
 250    unsigned i;
 251    bool success = TRUE;
 252
 253    for (i = 0; i < sizeof(test_cases)/sizeof(test_cases[0]); ++i) {
 254       if (test_cases[i].format != last_format) {
 255          const struct util_format_description *format_desc;
 256          format_desc = util_format_description(test_cases[i].format);
 257          fprintf(stderr, "Testing %s ...\n", format_desc->name);
 258          last_format = test_cases[i].format;
 259       }
 260
 261       if (!test_format_pack(&test_cases[i]))
 262         success = FALSE;
 263
 264       if (!test_format_unpack(&test_cases[i]))
 265         success = FALSE;
 266    }
 267
 268    return success;
 269 }
 270
 271
 272 int main(int argc, char **argv)
 273 {
 274    boolean success;
 275
 276    success = test_all();
 277
 278    return success ? 0 : 1;
 279 }