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/**************************************************************************
*
* Copyright 2009-2010 VMware, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#include <stdlib.h>
#include <stdio.h>
#include "util/u_format.h"
#include "util/u_format_pack.h"
#define MAX_PACKED_BYTES 4
/**
* A (packed, unpacked) color pair.
*/
struct util_format_test_case
{
enum pipe_format format;
/**
* Mask of the bits that actually meaningful data. Used to mask out the
* "X" channels.
*/
uint8_t mask[MAX_PACKED_BYTES];
uint8_t packed[MAX_PACKED_BYTES];
/**
* RGBA.
*/
double unpacked[4];
};
/*
* Helper macros to create the packed bytes for longer words.
*/
#define PACKED_1x8(x) {x, 0, 0, 0}
#define PACKED_4x8(x, y, z, w) {x, y, z, w}
#define PACKED_1x32(x) {(x) & 0xff, ((x) >> 8) & 0xff, ((x) >> 16) & 0xff, ((x) >> 24) & 0xff}
#define PACKED_1x16(x) {(x) & 0xff, ((x) >> 8) & 0xff, 0, 0}
/**
* Test cases.
*
* These were manually entered. We could generate these
*
* To keep this to a we cover only the corner cases, which should produce
* good enough coverage since that pixel format transformations are afine for
* non SRGB formats.
*/
static const struct util_format_test_case
test_cases[] =
{
{PIPE_FORMAT_R5G6B5_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0x0000), {0.0, 0.0, 0.0, 1.0}},
{PIPE_FORMAT_R5G6B5_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0x001f), {0.0, 0.0, 1.0, 1.0}},
{PIPE_FORMAT_R5G6B5_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0x07e0), {0.0, 1.0, 0.0, 1.0}},
{PIPE_FORMAT_R5G6B5_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0xf800), {1.0, 0.0, 0.0, 1.0}},
{PIPE_FORMAT_R5G6B5_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0xffff), {1.0, 1.0, 1.0, 1.0}},
{PIPE_FORMAT_A1R5G5B5_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0x0000), {0.0, 0.0, 0.0, 0.0}},
{PIPE_FORMAT_A1R5G5B5_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0x001f), {0.0, 0.0, 1.0, 0.0}},
{PIPE_FORMAT_A1R5G5B5_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0x03e0), {0.0, 1.0, 0.0, 0.0}},
{PIPE_FORMAT_A1R5G5B5_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0x7c00), {1.0, 0.0, 0.0, 0.0}},
{PIPE_FORMAT_A1R5G5B5_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0x8000), {0.0, 0.0, 0.0, 1.0}},
{PIPE_FORMAT_A1R5G5B5_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0xffff), {1.0, 1.0, 1.0, 1.0}},
{PIPE_FORMAT_A4R4G4B4_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0x0000), {0.0, 0.0, 0.0, 0.0}},
{PIPE_FORMAT_A4R4G4B4_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0x000f), {0.0, 0.0, 1.0, 0.0}},
{PIPE_FORMAT_A4R4G4B4_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0x00f0), {0.0, 1.0, 0.0, 0.0}},
{PIPE_FORMAT_A4R4G4B4_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0x0f00), {1.0, 0.0, 0.0, 0.0}},
{PIPE_FORMAT_A4R4G4B4_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0xf000), {0.0, 0.0, 0.0, 1.0}},
{PIPE_FORMAT_A4R4G4B4_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0xffff), {1.0, 1.0, 1.0, 1.0}},
{PIPE_FORMAT_A2B10G10R10_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x00000000), {0.0, 0.0, 0.0, 0.0}},
{PIPE_FORMAT_A2B10G10R10_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x000003ff), {1.0, 0.0, 0.0, 0.0}},
{PIPE_FORMAT_A2B10G10R10_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x000ffc00), {0.0, 1.0, 0.0, 0.0}},
{PIPE_FORMAT_A2B10G10R10_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x3ff00000), {0.0, 0.0, 1.0, 0.0}},
{PIPE_FORMAT_A2B10G10R10_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0xc0000000), {0.0, 0.0, 0.0, 1.0}},
{PIPE_FORMAT_A2B10G10R10_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0xffffffff), {1.0, 1.0, 1.0, 1.0}},
{PIPE_FORMAT_A8R8G8B8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x00000000), {0.0, 0.0, 0.0, 0.0}},
{PIPE_FORMAT_A8R8G8B8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x000000ff), {0.0, 0.0, 1.0, 0.0}},
{PIPE_FORMAT_A8R8G8B8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x0000ff00), {0.0, 1.0, 0.0, 0.0}},
{PIPE_FORMAT_A8R8G8B8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x00ff0000), {1.0, 0.0, 0.0, 0.0}},
{PIPE_FORMAT_A8R8G8B8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0xff000000), {0.0, 0.0, 0.0, 1.0}},
{PIPE_FORMAT_A8R8G8B8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0xffffffff), {1.0, 1.0, 1.0, 1.0}},
{PIPE_FORMAT_X8R8G8B8_UNORM, PACKED_1x32(0x00ffffff), PACKED_1x32(0x00000000), {0.0, 0.0, 0.0, 1.0}},
{PIPE_FORMAT_X8R8G8B8_UNORM, PACKED_1x32(0x00ffffff), PACKED_1x32(0x000000ff), {0.0, 0.0, 1.0, 1.0}},
{PIPE_FORMAT_X8R8G8B8_UNORM, PACKED_1x32(0x00ffffff), PACKED_1x32(0x0000ff00), {0.0, 1.0, 0.0, 1.0}},
{PIPE_FORMAT_X8R8G8B8_UNORM, PACKED_1x32(0x00ffffff), PACKED_1x32(0x00ff0000), {1.0, 0.0, 0.0, 1.0}},
{PIPE_FORMAT_X8R8G8B8_UNORM, PACKED_1x32(0x00ffffff), PACKED_1x32(0xff000000), {0.0, 0.0, 0.0, 1.0}},
{PIPE_FORMAT_X8R8G8B8_UNORM, PACKED_1x32(0x00ffffff), PACKED_1x32(0xffffffff), {1.0, 1.0, 1.0, 1.0}},
{PIPE_FORMAT_B8G8R8A8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x00000000), {0.0, 0.0, 0.0, 0.0}},
{PIPE_FORMAT_B8G8R8A8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x000000ff), {0.0, 0.0, 0.0, 1.0}},
{PIPE_FORMAT_B8G8R8A8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x0000ff00), {1.0, 0.0, 0.0, 0.0}},
{PIPE_FORMAT_B8G8R8A8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x00ff0000), {0.0, 1.0, 0.0, 0.0}},
{PIPE_FORMAT_B8G8R8A8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0xff000000), {0.0, 0.0, 1.0, 0.0}},
{PIPE_FORMAT_B8G8R8A8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0xffffffff), {1.0, 1.0, 1.0, 1.0}},
{PIPE_FORMAT_B8G8R8X8_UNORM, PACKED_1x32(0xffffff00), PACKED_1x32(0x00000000), {0.0, 0.0, 0.0, 1.0}},
{PIPE_FORMAT_B8G8R8X8_UNORM, PACKED_1x32(0xffffff00), PACKED_1x32(0x000000ff), {0.0, 0.0, 0.0, 1.0}},
{PIPE_FORMAT_B8G8R8X8_UNORM, PACKED_1x32(0xffffff00), PACKED_1x32(0x0000ff00), {1.0, 0.0, 0.0, 1.0}},
{PIPE_FORMAT_B8G8R8X8_UNORM, PACKED_1x32(0xffffff00), PACKED_1x32(0x00ff0000), {0.0, 1.0, 0.0, 1.0}},
{PIPE_FORMAT_B8G8R8X8_UNORM, PACKED_1x32(0xffffff00), PACKED_1x32(0xff000000), {0.0, 0.0, 1.0, 1.0}},
{PIPE_FORMAT_B8G8R8X8_UNORM, PACKED_1x32(0xffffff00), PACKED_1x32(0xffffffff), {1.0, 1.0, 1.0, 1.0}},
#if 0
{PIPE_FORMAT_R8G8B8A8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x00000000), {0.0, 0.0, 0.0, 0.0}},
{PIPE_FORMAT_R8G8B8A8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x000000ff), {0.0, 0.0, 0.0, 1.0}},
{PIPE_FORMAT_R8G8B8A8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x0000ff00), {0.0, 0.0, 1.0, 0.0}},
{PIPE_FORMAT_R8G8B8A8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x00ff0000), {0.0, 1.0, 0.0, 0.0}},
{PIPE_FORMAT_R8G8B8A8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0xff000000), {1.0, 0.0, 0.0, 0.0}},
{PIPE_FORMAT_R8G8B8A8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0xffffffff), {1.0, 1.0, 1.0, 1.0}},
#endif
{PIPE_FORMAT_B8G8R8A8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x00000000), {0.0, 0.0, 0.0, 0.0}},
{PIPE_FORMAT_B8G8R8A8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x000000ff), {0.0, 0.0, 0.0, 1.0}},
{PIPE_FORMAT_B8G8R8A8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x0000ff00), {1.0, 0.0, 0.0, 0.0}},
{PIPE_FORMAT_B8G8R8A8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x00ff0000), {0.0, 1.0, 0.0, 0.0}},
{PIPE_FORMAT_B8G8R8A8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0xff000000), {0.0, 0.0, 1.0, 0.0}},
{PIPE_FORMAT_B8G8R8A8_UNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0xffffffff), {1.0, 1.0, 1.0, 1.0}},
{PIPE_FORMAT_L8_UNORM, PACKED_1x8(0xff), PACKED_1x8(0x00), {0.0, 0.0, 0.0, 1.0}},
{PIPE_FORMAT_L8_UNORM, PACKED_1x8(0xff), PACKED_1x8(0xff), {1.0, 1.0, 1.0, 1.0}},
{PIPE_FORMAT_A8_UNORM, PACKED_1x8(0xff), PACKED_1x8(0x00), {0.0, 0.0, 0.0, 0.0}},
{PIPE_FORMAT_A8_UNORM, PACKED_1x8(0xff), PACKED_1x8(0xff), {0.0, 0.0, 0.0, 1.0}},
{PIPE_FORMAT_I8_UNORM, PACKED_1x8(0xff), PACKED_1x8(0x00), {0.0, 0.0, 0.0, 0.0}},
{PIPE_FORMAT_I8_UNORM, PACKED_1x8(0xff), PACKED_1x8(0xff), {1.0, 1.0, 1.0, 1.0}},
{PIPE_FORMAT_A8L8_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0x0000), {0.0, 0.0, 0.0, 0.0}},
{PIPE_FORMAT_A8L8_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0x00ff), {1.0, 1.0, 1.0, 0.0}},
{PIPE_FORMAT_A8L8_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0xff00), {0.0, 0.0, 0.0, 1.0}},
{PIPE_FORMAT_A8L8_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0xffff), {1.0, 1.0, 1.0, 1.0}},
{PIPE_FORMAT_L16_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0x0000), {0.0, 0.0, 0.0, 1.0}},
{PIPE_FORMAT_L16_UNORM, PACKED_1x16(0xffff), PACKED_1x16(0xffff), {1.0, 1.0, 1.0, 1.0}},
{PIPE_FORMAT_A8B8G8R8_SNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x00000000), { 0.0, 0.0, 0.0, 0.0}},
{PIPE_FORMAT_A8B8G8R8_SNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x0000007f), { 1.0, 0.0, 0.0, 0.0}},
{PIPE_FORMAT_A8B8G8R8_SNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x00000081), {-1.0, 0.0, 0.0, 0.0}},
{PIPE_FORMAT_A8B8G8R8_SNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x00007f00), { 0.0, 1.0, 0.0, 0.0}},
{PIPE_FORMAT_A8B8G8R8_SNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x00008100), { 0.0, -1.0, 0.0, 0.0}},
{PIPE_FORMAT_A8B8G8R8_SNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x007f0000), { 0.0, 0.0, 1.0, 0.0}},
{PIPE_FORMAT_A8B8G8R8_SNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x00810000), { 0.0, 0.0, -1.0, 0.0}},
{PIPE_FORMAT_A8B8G8R8_SNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x7f000000), { 0.0, 0.0, 0.0, 1.0}},
{PIPE_FORMAT_A8B8G8R8_SNORM, PACKED_1x32(0xffffffff), PACKED_1x32(0x81000000), { 0.0, 0.0, 0.0, -1.0}},
{PIPE_FORMAT_X8UB8UG8SR8S_NORM, PACKED_1x32(0x00ffffff), PACKED_1x32(0x00000000), { 0.0, 0.0, 0.0, 1.0}},
{PIPE_FORMAT_X8UB8UG8SR8S_NORM, PACKED_1x32(0x00ffffff), PACKED_1x32(0x0000007f), { 1.0, 0.0, 0.0, 1.0}},
{PIPE_FORMAT_X8UB8UG8SR8S_NORM, PACKED_1x32(0x00ffffff), PACKED_1x32(0x00000081), {-1.0, 0.0, 0.0, 1.0}},
{PIPE_FORMAT_X8UB8UG8SR8S_NORM, PACKED_1x32(0x00ffffff), PACKED_1x32(0x00007f00), { 0.0, 1.0, 0.0, 1.0}},
{PIPE_FORMAT_X8UB8UG8SR8S_NORM, PACKED_1x32(0x00ffffff), PACKED_1x32(0x00008100), { 0.0, -1.0, 0.0, 1.0}},
{PIPE_FORMAT_X8UB8UG8SR8S_NORM, PACKED_1x32(0x00ffffff), PACKED_1x32(0x00ff0000), { 0.0, 0.0, 1.0, 1.0}},
{PIPE_FORMAT_X8UB8UG8SR8S_NORM, PACKED_1x32(0x00ffffff), PACKED_1x32(0xff000000), { 0.0, 0.0, 0.0, 1.0}},
{PIPE_FORMAT_B6UG5SR5S_NORM, PACKED_1x16(0xffff), PACKED_1x16(0x0000), { 0.0, 0.0, 0.0, 1.0}},
{PIPE_FORMAT_B6UG5SR5S_NORM, PACKED_1x16(0xffff), PACKED_1x16(0x000f), { 1.0, 0.0, 0.0, 1.0}},
{PIPE_FORMAT_B6UG5SR5S_NORM, PACKED_1x16(0xffff), PACKED_1x16(0x0011), {-1.0, 0.0, 0.0, 1.0}},
{PIPE_FORMAT_B6UG5SR5S_NORM, PACKED_1x16(0xffff), PACKED_1x16(0x01e0), { 0.0, 1.0, 0.0, 1.0}},
{PIPE_FORMAT_B6UG5SR5S_NORM, PACKED_1x16(0xffff), PACKED_1x16(0x0220), { 0.0, -1.0, 0.0, 1.0}},
{PIPE_FORMAT_B6UG5SR5S_NORM, PACKED_1x16(0xffff), PACKED_1x16(0xfc00), { 0.0, 0.0, 1.0, 1.0}},
};
static boolean
test_format_unpack(const struct util_format_test_case *test)
{
float unpacked[4];
unsigned i;
boolean success;
util_format_unpack_4f(test->format, unpacked, test->packed);
success = TRUE;
for (i = 0; i < 4; ++i)
if (test->unpacked[i] != unpacked[i])
success = FALSE;
if (!success) {
printf("FAILED: (%f %f %f %f) obtained\n", unpacked[0], unpacked[1], unpacked[2], unpacked[3]);
printf(" (%f %f %f %f) expected\n", test->unpacked[0], test->unpacked[1], test->unpacked[2], test->unpacked[3]);
}
return success;
}
static boolean
test_format_pack(const struct util_format_test_case *test)
{
uint8_t packed[MAX_PACKED_BYTES];
unsigned i;
boolean success;
memset(packed, 0, sizeof packed);
util_format_pack_4f(test->format, packed, test->unpacked[0], test->unpacked[1], test->unpacked[2], test->unpacked[3]);
success = TRUE;
for (i = 0; i < MAX_PACKED_BYTES; ++i)
if ((test->packed[i] & test->mask[i]) != (packed[i] & test->mask[i]))
success = FALSE;
if (!success) {
printf("FAILED: (%02x %02x %02x %02x) obtained\n", packed[0], packed[1], packed[2], packed[3]);
printf(" (%02x %02x %02x %02x) expected\n", test->packed[0], test->packed[1], test->packed[2], test->packed[3]);
}
return success;
}
static boolean
test_all(void)
{
enum pipe_format last_format = PIPE_FORMAT_NONE;
unsigned i;
bool success = TRUE;
for (i = 0; i < sizeof(test_cases)/sizeof(test_cases[0]); ++i) {
if (test_cases[i].format != last_format) {
const struct util_format_description *format_desc;
format_desc = util_format_description(test_cases[i].format);
fprintf(stderr, "Testing %s ...\n", format_desc->name);
last_format = test_cases[i].format;
}
if (!test_format_pack(&test_cases[i]))
success = FALSE;
if (!test_format_unpack(&test_cases[i]))
success = FALSE;
}
return success;
}
int main(int argc, char **argv)
{
boolean success;
success = test_all();
return success ? 0 : 1;
}
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