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info.c
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/* -*- tab-width: 4; -*- */
/* vi: set sw=2 ts=4 expandtab: */
/**
* @internal
* @file info.c
* @~English
*
* @brief Functions for printing information about KTX or KTX2.
*
* @author Mark Callow, www.edgewise-consulting.com
*/
/*
* Copyright 2019-2020 Mark Callow.
* SPDX-License-Identifier: Apache-2.0
*/
#include <assert.h>
#include <inttypes.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#if defined(_WIN32)
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <io.h>
#endif
#include <ktx.h>
#include "dfdutils/dfd.h"
#include "filestream.h"
#include "memstream.h"
#include "ktxint.h"
#include "basis_sgd.h"
#include "unused.h"
/*===========================================================*
* Common Utilities for version 1 and 2. *
*===========================================================*/
enum {
// These constraints are not mandated by the spec and only used as a
// reasonable upper limit to stop parsing garbage data during print
MAX_NUM_KVD_ENTRIES = 100,
MAX_NUM_LEVELS = 64,
};
/** @internal */
#define LENGTH_OF_INDENT(INDENT) ((base_indent + INDENT) * indent_width)
/** @internal */
#define PRINT_INDENT(INDENT, FMT, ...) { \
printf("%*s" FMT, LENGTH_OF_INDENT(INDENT), "", __VA_ARGS__); \
}
/** @internal */
#define PRINT_INDENT_NOARG(INDENT, FMT) { \
printf("%*s" FMT, LENGTH_OF_INDENT(INDENT), ""); \
}
/** @internal */
static void printFlagBitsJSON(uint32_t indent, const char* nl, uint32_t flags, const char*(*toStringFn)(uint32_t, bool)) {
bool first = true;
for (uint32_t bit_index = 0; bit_index < 32; ++bit_index) {
uint32_t bit_mask = 1u << bit_index;
bool bit_value = (bit_mask & (uint32_t) flags) != 0;
const char* str = toStringFn(bit_index, bit_value);
if (str) {
printf("%s%s%*s\"%s\"", first ? "" : ",", first ? "" : nl, indent, "", str);
first = false;
} else if (bit_value) {
printf("%s%s%*s%u", first ? "" : ",", first ? "" : nl, indent, "", bit_mask);
first = false;
}
}
if (!first)
printf("%s", nl);
}
/** @internal */
bool isKnownKeyValueUINT32(const char* key) {
if (strcmp(key, "KTXdxgiFormat__") == 0)
return true;
if (strcmp(key, "KTXmetalPixelFormat") == 0)
return true;
return false;
}
/** @internal */
bool isKnownKeyValueString(const char* key) {
if (strcmp(key, "KTXorientation") == 0)
return true;
if (strcmp(key, "KTXswizzle") == 0)
return true;
if (strcmp(key, "KTXwriter") == 0)
return true;
if (strcmp(key, "KTXwriterScParams") == 0)
return true;
if (strcmp(key, "KTXastcDecodeMode") == 0)
return true;
return false;
}
/** @internal */
bool isKnownKeyValue(const char* key) {
if (isKnownKeyValueUINT32(key))
return true;
if (isKnownKeyValueString(key))
return true;
if (strcmp(key, "KTXglFormat") == 0)
return true;
if (strcmp(key, "KTXanimData") == 0)
return true;
if (strcmp(key, "KTXcubemapIncomplete") == 0)
return true;
return false;
}
/**
* @internal
* @~English
* @brief Prints a list of the keys & values found in a KTX file.
*
* @param [in] pKvd pointer to serialized key/value data.
* @param [in] kvdLen length of the serialized key/value data.
*/
void
printKVData(ktx_uint8_t* pKvd, ktx_uint32_t kvdLen)
{
KTX_error_code result;
ktxHashList kvDataHead = 0;
assert(pKvd != NULL && kvdLen > 0);
result = ktxHashList_Deserialize(&kvDataHead, kvdLen, pKvd);
if (result != KTX_SUCCESS) {
fprintf(stdout, "Failed to parse or not enough memory to build list of key/value pairs.\n");
return;
}
if (kvDataHead == NULL)
return;
int entryIndex = 0;
ktxHashListEntry* entry = kvDataHead;
for (; entry != NULL && entryIndex < MAX_NUM_KVD_ENTRIES; entry = ktxHashList_Next(entry), ++entryIndex) {
char* key;
char* value;
ktx_uint32_t keyLen, valueLen;
ktxHashListEntry_GetKey(entry, &keyLen, &key);
ktxHashListEntry_GetValue(entry, &valueLen, (void**)&value);
// Keys must be NUL terminated.
fprintf(stdout, "%s:", key);
if (!value) {
fprintf(stdout, " null\n");
} else {
if (strcmp(key, "KTXglFormat") == 0) {
if (valueLen == 3 * sizeof(ktx_uint32_t)) {
ktx_uint32_t glInternalformat = *(const ktx_uint32_t*) (value + 0);
ktx_uint32_t glFormat = *(const ktx_uint32_t*) (value + 4);
ktx_uint32_t glType = *(const ktx_uint32_t*) (value + 8);
fprintf(stdout, "\n");
fprintf(stdout, " glInternalformat: 0x%08X\n", glInternalformat);
fprintf(stdout, " glFormat: 0x%08X\n", glFormat);
fprintf(stdout, " glType: 0x%08X\n", glType);
}
} else if (strcmp(key, "KTXanimData") == 0) {
if (valueLen == 3 * sizeof(ktx_uint32_t)) {
ktx_uint32_t duration = *(const ktx_uint32_t*) (value + 0);
ktx_uint32_t timescale = *(const ktx_uint32_t*) (value + 4);
ktx_uint32_t loopCount = *(const ktx_uint32_t*) (value + 8);
fprintf(stdout, "\n");
fprintf(stdout, " duration: %u\n", duration);
fprintf(stdout, " timescale: %u\n", timescale);
fprintf(stdout, " loopCount: %u%s\n", loopCount, loopCount == 0 ? " (infinite)" : "");
}
} else if (strcmp(key, "KTXcubemapIncomplete") == 0) {
if (valueLen == sizeof(ktx_uint8_t)) {
ktx_uint8_t faces = *value;
fprintf(stdout, "\n");
fprintf(stdout, " positiveX: %s\n", faces & 1u << 0u ? "true" : "false");
fprintf(stdout, " negativeX: %s\n", faces & 1u << 1u ? "true" : "false");
fprintf(stdout, " positiveY: %s\n", faces & 1u << 2u ? "true" : "false");
fprintf(stdout, " negativeY: %s\n", faces & 1u << 3u ? "true" : "false");
fprintf(stdout, " positiveZ: %s\n", faces & 1u << 4u ? "true" : "false");
fprintf(stdout, " negativeZ: %s\n", faces & 1u << 5u ? "true" : "false");
}
} else if (isKnownKeyValueUINT32(key)) {
if (valueLen == sizeof(ktx_uint32_t)) {
ktx_uint32_t number = *(const ktx_uint32_t*) value;
fprintf(stdout, " %u\n", number);
}
} else if (isKnownKeyValueString(key)) {
if (value[valueLen-1] == '\0') {
fprintf(stdout, " %s\n", value);
}
} else {
fprintf(stdout, " [");
for (ktx_uint32_t i = 0; i < valueLen; i++)
fprintf(stdout, "%d%s", (int) value[i], i + 1 == valueLen ? "" : ", ");
fprintf(stdout, "]\n");
}
}
}
ktxHashList_Destruct(&kvDataHead);
}
/**
* @internal
* @~English
* @brief Prints a list of the keys & values found in a KTX2 file.
*
* @param [in] pKvd pointer to serialized key/value data.
* @param [in] kvdLen length of the serialized key/value data.
* @param [in] base_indent The number of indentations to include at the front of every line
* @param [in] indent_width The number of spaces to add with each nested scope
* @param [in] minified Specifies whether the JSON output should be minified
*/
void
printKVDataJSON(ktx_uint8_t* pKvd, ktx_uint32_t kvdLen, ktx_uint32_t base_indent, ktx_uint32_t indent_width, bool minified)
{
const char* space = minified ? "" : " ";
const char* nl = minified ? "" : "\n";
KTX_error_code result;
ktxHashList kvDataHead = 0;
assert(pKvd != NULL && kvdLen > 0);
result = ktxHashList_Deserialize(&kvDataHead, kvdLen, pKvd);
if (result != KTX_SUCCESS) {
// Logging while printing JSON is not possible, we rely on the validation step to provide meaningful errors
// fprintf(stdout, "Failed to parse or not enough memory to build list of key/value pairs.\n");
return;
}
if (kvDataHead == NULL)
return;
int entryIndex = 0;
ktxHashListEntry* entry = kvDataHead;
bool firstPrint = true; // Marks if the first print did not occur yet (first print != first entry)
for (; entry != NULL && entryIndex < MAX_NUM_KVD_ENTRIES; entry = ktxHashList_Next(entry), ++entryIndex) {
char* key;
char* value;
ktx_uint32_t keyLen, valueLen;
ktxHashListEntry_GetKey(entry, &keyLen, &key);
ktxHashListEntry_GetValue(entry, &valueLen, (void**)&value);
// Keys must be NUL terminated.
if (!value) {
if (!isKnownKeyValue(key)) {
// Known keys are not be printed with null
if (!firstPrint)
fprintf(stdout, ",%s", nl);
firstPrint = false;
PRINT_INDENT(0, "\"%s\":%snull", key, space)
}
} else {
if (strcmp(key, "KTXglFormat") == 0) {
if (valueLen == 3 * sizeof(ktx_uint32_t)) {
if (!firstPrint)
fprintf(stdout, ",%s", nl);
firstPrint = false;
ktx_uint32_t glInternalformat = *(const ktx_uint32_t*) (value + 0);
ktx_uint32_t glFormat = *(const ktx_uint32_t*) (value + 4);
ktx_uint32_t glType = *(const ktx_uint32_t*) (value + 8);
PRINT_INDENT(0, "\"%s\":%s{%s", key, space, nl)
PRINT_INDENT(1, "\"glInternalformat\":%s%u,%s", space, glInternalformat, nl)
PRINT_INDENT(1, "\"glFormat\":%s%u,%s", space, glFormat, nl)
PRINT_INDENT(1, "\"glType\":%s%u%s", space, glType, nl)
PRINT_INDENT_NOARG(0, "}")
}
} else if (strcmp(key, "KTXanimData") == 0) {
if (valueLen == 3 * sizeof(ktx_uint32_t)) {
if (!firstPrint)
fprintf(stdout, ",%s", nl);
firstPrint = false;
ktx_uint32_t duration = *(const ktx_uint32_t*) (value + 0);
ktx_uint32_t timescale = *(const ktx_uint32_t*) (value + 4);
ktx_uint32_t loopCount = *(const ktx_uint32_t*) (value + 8);
PRINT_INDENT(0, "\"%s\":%s{%s", key, space, nl)
PRINT_INDENT(1, "\"duration\":%s%u,%s", space, duration, nl)
PRINT_INDENT(1, "\"timescale\":%s%u,%s", space, timescale, nl)
PRINT_INDENT(1, "\"loopCount\":%s%u%s", space, loopCount, nl)
PRINT_INDENT_NOARG(0, "}")
}
} else if (strcmp(key, "KTXcubemapIncomplete") == 0) {
if (valueLen == sizeof(ktx_uint8_t)) {
if (!firstPrint)
fprintf(stdout, ",%s", nl);
firstPrint = false;
ktx_uint8_t faces = *value;
PRINT_INDENT(0, "\"%s\":%s{%s", key, space, nl)
PRINT_INDENT(1, "\"positiveX\":%s%s,%s", space, faces & 1u << 0u ? "true" : "false", nl)
PRINT_INDENT(1, "\"negativeX\":%s%s,%s", space, faces & 1u << 1u ? "true" : "false", nl)
PRINT_INDENT(1, "\"positiveY\":%s%s,%s", space, faces & 1u << 2u ? "true" : "false", nl)
PRINT_INDENT(1, "\"negativeY\":%s%s,%s", space, faces & 1u << 3u ? "true" : "false", nl)
PRINT_INDENT(1, "\"positiveZ\":%s%s,%s", space, faces & 1u << 4u ? "true" : "false", nl)
PRINT_INDENT(1, "\"negativeZ\":%s%s%s", space, faces & 1u << 5u ? "true" : "false", nl)
PRINT_INDENT_NOARG(0, "}")
}
} else if (isKnownKeyValueUINT32(key)) {
if (valueLen == sizeof(ktx_uint32_t)) {
if (!firstPrint)
fprintf(stdout, ",%s", nl);
firstPrint = false;
ktx_uint32_t number = *(const ktx_uint32_t*) value;
PRINT_INDENT(0, "\"%s\":%s%u", key, space, number)
}
} else if (isKnownKeyValueString(key)) {
if (value[valueLen-1] == '\0') {
if (!firstPrint)
fprintf(stdout, ",%s", nl);
firstPrint = false;
PRINT_INDENT(0, "\"%s\":%s\"%s\"", key, space, value)
}
} else {
if (!firstPrint)
fprintf(stdout, ",%s", nl);
firstPrint = false;
PRINT_INDENT(0, "\"%s\":%s[", key, space)
for (ktx_uint32_t i = 0; i < valueLen; i++)
fprintf(stdout, "%d%s", (int) value[i], i + 1 == valueLen ? "" : ", ");
fprintf(stdout, "]");
}
}
}
fprintf(stdout, "%s", nl);
ktxHashList_Destruct(&kvDataHead);
}
/**
* @internal
* @~English
* @brief Print the KTX 1/2 file identifier.
*
* @param [in] identifier
* @param [in] json specifies if "\x1A" should be escaped as "\u001A" to not break most json tools
*/
void
printIdentifier(const ktx_uint8_t identifier[12], bool json)
{
// Convert identifier for better display.
uint32_t idlen = 0;
char u8identifier[30];
for (uint32_t i = 0; i < 12 && idlen < sizeof(u8identifier); i++, idlen++) {
// Convert the angle brackets to utf-8 for better printing. The
// conversion below only works for characters whose msb's are 10.
if (identifier[i] == U'\xAB') {
u8identifier[idlen++] = '\xc2';
u8identifier[idlen] = identifier[i];
} else if (identifier[i] == U'\xBB') {
u8identifier[idlen++] = '\xc2';
u8identifier[idlen] = identifier[i];
} else if (identifier[i] < '\x20') {
uint32_t nchars;
switch (identifier[i]) {
case '\n':
u8identifier[idlen++] = '\\';
u8identifier[idlen] = 'n';
break;
case '\r':
u8identifier[idlen++] = '\\';
u8identifier[idlen] = 'r';
break;
default:
nchars = snprintf(&u8identifier[idlen],
sizeof(u8identifier) - idlen,
json ? "\\u%04X" : "\\x%02X",
identifier[i]);
idlen += nchars - 1;
}
} else {
u8identifier[idlen] = identifier[i];
}
}
#if defined(_WIN32)
if (_isatty(_fileno(stdout)))
SetConsoleOutputCP(CP_UTF8);
#endif
fprintf(stdout, "%.*s", idlen, u8identifier);
}
/*===========================================================*
* For KTX format version 1 *
*===========================================================*/
/**
* @internal
* @~English
* @brief Print the header fields of a KTX 1 file.
*
* @param [in] pHeader pointer to the header to print.
*/
void
printKTXHeader(KTX_header* pHeader)
{
fprintf(stdout, "identifier: ");
printIdentifier(pHeader->identifier, false);
fprintf(stdout, "\n");
fprintf(stdout, "endianness: %#x\n", pHeader->endianness);
fprintf(stdout, "glType: %#x\n", pHeader->glType);
fprintf(stdout, "glTypeSize: %u\n", pHeader->glTypeSize);
fprintf(stdout, "glFormat: %#x\n", pHeader->glFormat);
fprintf(stdout, "glInternalformat: %#x\n", pHeader->glInternalformat);
fprintf(stdout, "glBaseInternalformat: %#x\n",
pHeader->glBaseInternalformat);
fprintf(stdout, "pixelWidth: %u\n", pHeader->pixelWidth);
fprintf(stdout, "pixelHeight: %u\n", pHeader->pixelHeight);
fprintf(stdout, "pixelDepth: %u\n", pHeader->pixelDepth);
fprintf(stdout, "numberOfArrayElements: %u\n",
pHeader->numberOfArrayElements);
fprintf(stdout, "numberOfFaces: %u\n", pHeader->numberOfFaces);
fprintf(stdout, "numberOfMipLevels: %u\n", pHeader->numberOfMipLevels);
fprintf(stdout, "bytesOfKeyValueData: %u\n", pHeader->bytesOfKeyValueData);
}
/**
* @internal
* @~English
* @brief Print information about a KTX 1 file.
*
* The stream's read pointer should be immediately following the header.
*
* @param [in] stream pointer to the ktxStream reading the file.
* @param [in] pHeader pointer to the header to print.
*/
void
printKTXInfo2(ktxStream* stream, KTX_header* pHeader)
{
ktx_uint8_t* metadata;
KTX_supplemental_info suppInfo;
KTX_error_code result;
if (pHeader->endianness == KTX_ENDIAN_REF_REV) {
fprintf(stdout, "This file has opposite endianness to this machine. Following\n"
"are the converted pHeader values\n\n");
} else {
fprintf(stdout, "Header\n\n");
}
// Print first as ktxCheckHeader1_ modifies the header.
printKTXHeader(pHeader);
result = ktxCheckHeader1_(pHeader, &suppInfo);
if (result != KTX_SUCCESS) {
fprintf(stdout, "The KTX 1 file pHeader is invalid:\n");
switch (result) {
case KTX_FILE_DATA_ERROR:
fprintf(stdout, " it has invalid data such as bad glTypeSize, improper dimensions,\n"
"improper number of faces or too many levels.\n");
break;
case KTX_UNSUPPORTED_FEATURE:
fprintf(stdout, " it describes an unsupported feature or format\n");
break;
default:
; // _ktxCheckHeader returns only the above 2 errors.
}
return;
}
if (pHeader->bytesOfKeyValueData) {
fprintf(stdout, "\nKey/Value Data\n\n");
metadata = malloc(pHeader->bytesOfKeyValueData);
stream->read(stream, metadata, pHeader->bytesOfKeyValueData);
printKVData(metadata, pHeader->bytesOfKeyValueData);
free(metadata);
} else {
fprintf(stdout, "\nNo Key/Value data.\n");
}
uint32_t levelCount = MAX(1, pHeader->numberOfMipLevels);
bool nonArrayCubemap;
if (pHeader->numberOfArrayElements == 0 && pHeader->numberOfFaces == 6)
nonArrayCubemap = true;
else
nonArrayCubemap = false;
ktx_uint64_t dataSize = 0;
// A note about padding: Since KTX requires a row alignment of 4 for
// uncompressed and all block-compressed formats have block sizes that
// are a multiple of 4, all levels and faces will also be a multiple
// of 4 so mipPadding and facePadding will always be 0. So they are
// ignored here.
fprintf(stdout, "\nData Sizes (bytes)\n------------------\n");
for (uint32_t level = 0; level < levelCount; level++) {
ktx_uint32_t faceLodSize;
ktx_uint32_t lodSize;
result = stream->read(stream, &faceLodSize, sizeof(ktx_uint32_t));
if (pHeader->endianness == KTX_ENDIAN_REF_REV)
_ktxSwapEndian32(&faceLodSize, 1);
if (nonArrayCubemap) {
lodSize = faceLodSize * 6;
} else {
lodSize = faceLodSize;
}
result = stream->skip(stream, lodSize);
dataSize += lodSize;
fprintf(stdout, "Level %u: %u\n", level, lodSize);
}
fprintf(stdout, "\nTotal: %" PRId64 "\n", dataSize);
}
/**
* @internal
* @~English
* @brief Print information about a KTX 1 file.
*
* The stream's read pointer should be at the start of the file.
*
* @param [in] stream pointer to the ktxStream reading the file.
*/
void
printKTXInfo(ktxStream* stream)
{
KTX_header header;
stream->read(stream, &header, KTX_HEADER_SIZE);
printKTXInfo2(stream, &header);
}
/*===========================================================*
* For KTX format version 2 *
*===========================================================*/
extern const char* vkFormatString(VkFormat format);
extern const char* ktxSupercompressionSchemeString(ktxSupercmpScheme scheme);
const char* ktxBUImageFlagsBitString(ktx_uint32_t bit_index, bool bit_value);
/**
* @internal
* @~English
* @brief Print the header fields of a KTX 2 file.
*
* @param [in] pHeader pointer to the header to print.
*/
void
printKTX2Header(KTX_header2* pHeader)
{
fprintf(stdout, "identifier: ");
printIdentifier(pHeader->identifier, false);
fprintf(stdout, "\n");
const char* vkFormatStr = vkFormatString(pHeader->vkFormat);
if (strcmp(vkFormatStr, "VK_UNKNOWN_FORMAT") == 0)
fprintf(stdout, "vkFormat: 0x%08X\n", (uint32_t) pHeader->vkFormat);
else
fprintf(stdout, "vkFormat: %s\n", vkFormatStr);
fprintf(stdout, "typeSize: %u\n", pHeader->typeSize);
fprintf(stdout, "pixelWidth: %u\n", pHeader->pixelWidth);
fprintf(stdout, "pixelHeight: %u\n", pHeader->pixelHeight);
fprintf(stdout, "pixelDepth: %u\n", pHeader->pixelDepth);
fprintf(stdout, "layerCount: %u\n",
pHeader->layerCount);
fprintf(stdout, "faceCount: %u\n", pHeader->faceCount);
fprintf(stdout, "levelCount: %u\n", pHeader->levelCount);
const char* scSchemeStr = ktxSupercompressionSchemeString(pHeader->supercompressionScheme);
if (strcmp(scSchemeStr, "Invalid scheme value") == 0)
fprintf(stdout, "supercompressionScheme: Invalid scheme (0x%X)\n", (uint32_t) pHeader->supercompressionScheme);
else if (strcmp(scSchemeStr, "Vendor or reserved scheme") == 0)
fprintf(stdout, "supercompressionScheme: Vendor or reserved scheme (0x%X)\n", (uint32_t) pHeader->supercompressionScheme);
else
fprintf(stdout, "supercompressionScheme: %s\n", scSchemeStr);
fprintf(stdout, "dataFormatDescriptor.byteOffset: %#x\n",
pHeader->dataFormatDescriptor.byteOffset);
fprintf(stdout, "dataFormatDescriptor.byteLength: %u\n",
pHeader->dataFormatDescriptor.byteLength);
fprintf(stdout, "keyValueData.byteOffset: %#x\n", pHeader->keyValueData.byteOffset);
fprintf(stdout, "keyValueData.byteLength: %u\n", pHeader->keyValueData.byteLength);
fprintf(stdout, "supercompressionGlobalData.byteOffset: %#" PRIx64 "\n",
pHeader->supercompressionGlobalData.byteOffset);
fprintf(stdout, "supercompressionGlobalData.byteLength: %" PRId64 "\n",
pHeader->supercompressionGlobalData.byteLength);
}
/**
* @internal
* @~English
* @brief Print the level index of a KTX 2 file.
*
* @param [in] levelIndex pointer to the level index array.
* @param [in] numLevels number of entries in the level index.
*/
void
printLevelIndex(ktxLevelIndexEntry levelIndex[], ktx_uint32_t numLevels)
{
numLevels = MIN(MAX_NUM_LEVELS, numLevels); // Print at most 64 levels to stop parsing garbage
for (ktx_uint32_t level = 0; level < numLevels; level++) {
fprintf(stdout, "Level%u.byteOffset: %#" PRIx64 "\n", level,
levelIndex[level].byteOffset);
fprintf(stdout, "Level%u.byteLength: %" PRId64 "\n", level,
levelIndex[level].byteLength);
fprintf(stdout, "Level%u.uncompressedByteLength: %" PRId64 "\n", level,
levelIndex[level].uncompressedByteLength);
}
}
/**
* @internal
* @~English
* @brief Print Basis supercompression global data.
*
* @param [in] bgd pointer to the Basis supercompression global data.
* @param [in] byteLength byte length of the data pointed to by @p bgd.
*/
void
printBasisSGDInfo(ktx_uint8_t* bgd, ktx_uint64_t byteLength,
ktx_uint32_t numImages)
{
ktxBasisLzGlobalHeader* bgdh = (ktxBasisLzGlobalHeader*)(bgd);
if (byteLength < sizeof(ktxBasisLzGlobalHeader))
return;
fprintf(stdout, "endpointCount: %u\n", bgdh->endpointCount);
fprintf(stdout, "selectorCount: %u\n", bgdh->selectorCount);
fprintf(stdout, "endpointsByteLength: %u\n", bgdh->endpointsByteLength);
fprintf(stdout, "selectorsByteLength: %u\n", bgdh->selectorsByteLength);
fprintf(stdout, "tablesByteLength: %u\n", bgdh->tablesByteLength);
fprintf(stdout, "extendedByteLength: %u\n", bgdh->extendedByteLength);
ktxBasisLzEtc1sImageDesc* slices = (ktxBasisLzEtc1sImageDesc*)(bgd + sizeof(ktxBasisLzGlobalHeader));
for (ktx_uint32_t i = 0; i < numImages; i++) {
if (byteLength < (i + 1) * sizeof(ktxBasisLzEtc1sImageDesc) + sizeof(ktxBasisLzGlobalHeader))
break;
fprintf(stdout, "\nimageFlags: %#x\n", slices[i].imageFlags);
fprintf(stdout, "rgbSliceByteLength: %u\n", slices[i].rgbSliceByteLength);
fprintf(stdout, "rgbSliceByteOffset: %#x\n", slices[i].rgbSliceByteOffset);
fprintf(stdout, "alphaSliceByteLength: %u\n", slices[i].alphaSliceByteLength);
fprintf(stdout, "alphaSliceByteOffset: %#x\n", slices[i].alphaSliceByteOffset);
}
}
/**
* @internal
* @~English
* @brief Print information about a KTX 2 file.
*
* The stream's read pointer should be immediately following the header.
*
* @param [in] stream pointer to the ktxStream reading the file.
* @param [in] pHeader pointer to the header to print.
*/
KTX_error_code
printKTX2Info2(ktxStream* stream, KTX_header2* pHeader)
{
const bool hasDFD =
pHeader->dataFormatDescriptor.byteOffset != 0 &&
pHeader->dataFormatDescriptor.byteLength != 0;
const bool hasKVD =
pHeader->keyValueData.byteOffset != 0 &&
pHeader->keyValueData.byteLength != 0;
const bool hasSGD =
pHeader->supercompressionGlobalData.byteOffset != 0 &&
pHeader->supercompressionGlobalData.byteLength != 0;
ktx_uint32_t numLevels;
ktxLevelIndexEntry* levelIndex;
ktx_uint32_t levelIndexSize;
KTX_error_code ec = KTX_SUCCESS;
fprintf(stdout, "Header\n\n");
printKTX2Header(pHeader);
fprintf(stdout, "\nLevel Index\n\n");
numLevels = MAX(1, pHeader->levelCount);
levelIndexSize = sizeof(ktxLevelIndexEntry) * numLevels;
levelIndex = (ktxLevelIndexEntry*)malloc(levelIndexSize);
if (levelIndex == NULL)
return KTX_OUT_OF_MEMORY;
ec = stream->read(stream, levelIndex, levelIndexSize);
if (ec != KTX_SUCCESS) {
free(levelIndex);
return ec;
}
printLevelIndex(levelIndex, numLevels);
free(levelIndex);
if (hasDFD) {
fprintf(stdout, "\nData Format Descriptor\n\n");
ktx_uint32_t* dfd = (ktx_uint32_t*)malloc(pHeader->dataFormatDescriptor.byteLength);
if (dfd == NULL)
return KTX_OUT_OF_MEMORY;
ec = stream->read(stream, dfd, pHeader->dataFormatDescriptor.byteLength);
if (ec != KTX_SUCCESS) {
free(dfd);
return ec;
}
if (*dfd != pHeader->dataFormatDescriptor.byteLength) {
free(dfd);
return KTX_FILE_DATA_ERROR;
}
printDFD(dfd, pHeader->dataFormatDescriptor.byteLength);
free(dfd);
}
if (hasKVD) {
fprintf(stdout, "\nKey/Value Data\n\n");
ktx_uint8_t* kvd = malloc(pHeader->keyValueData.byteLength);
if (kvd == NULL)
return KTX_OUT_OF_MEMORY;
ec = stream->read(stream, kvd, pHeader->keyValueData.byteLength);
if (ec != KTX_SUCCESS) {
free(kvd);
return ec;
}
printKVData(kvd, pHeader->keyValueData.byteLength);
free(kvd);
} else {
fprintf(stdout, "\nNo Key/Value data.\n");
}
if (hasSGD) {
if (pHeader->supercompressionScheme == KTX_SS_BASIS_LZ) {
ktx_uint8_t* sgd = malloc(pHeader->supercompressionGlobalData.byteLength);
if (sgd == NULL)
return KTX_OUT_OF_MEMORY;
ec = stream->setpos(stream, pHeader->supercompressionGlobalData.byteOffset);
if (ec != KTX_SUCCESS) {
free(sgd);
return ec;
}
ec = stream->read(stream, sgd, pHeader->supercompressionGlobalData.byteLength);
if (ec != KTX_SUCCESS) {
free(sgd);
return ec;
}
//
// Calculate number of images
//
uint32_t layersFaces = MAX(pHeader->layerCount, 1) * pHeader->faceCount;
uint32_t layerPixelDepth = MAX(pHeader->pixelDepth, 1);
for(uint32_t level = 1; level < MAX(pHeader->levelCount, 1); level++)
layerPixelDepth += MAX(MAX(pHeader->pixelDepth, 1) >> level, 1U);
// NOTA BENE: faceCount * layerPixelDepth is only reasonable because
// faceCount and depth can't both be > 1. I.e there are no 3d cubemaps.
uint32_t numImages = layersFaces * layerPixelDepth;
fprintf(stdout, "\nBasis Supercompression Global Data\n\n");
printBasisSGDInfo(sgd, pHeader->supercompressionGlobalData.byteLength, numImages);
free(sgd);
} else {
fprintf(stdout, "\nUnrecognized supercompressionScheme.\n");
}
}
return ec;
}
/**
* @internal
* @~English
* @brief Print information about a KTX 2 file.
*
* The stream's read pointer should be immediately following the header.
*
* @param [in] stream pointer to the ktxStream reading the file.
* @param [in] pHeader pointer to the header to print.
* @param [in] base_indent The number of indentations to include at the front of every line
* @param [in] indent_width The number of spaces to add with each nested scope
* @param [in] minified Specifies whether the JSON output should be minified
*/
KTX_error_code
printKTX2Info2JSON(ktxStream* stream, KTX_header2* pHeader, ktx_uint32_t base_indent, ktx_uint32_t indent_width, bool minified)
{
if (minified) {
base_indent = 0;
indent_width = 0;
}
const char* space = minified ? "" : " ";
const char* nl = minified ? "" : "\n";
const bool hasDFD =
pHeader->dataFormatDescriptor.byteOffset != 0 &&
pHeader->dataFormatDescriptor.byteLength != 0;
const bool hasKVD =
pHeader->keyValueData.byteOffset != 0 &&
pHeader->keyValueData.byteLength != 0;
const bool hasSGD =
pHeader->supercompressionGlobalData.byteOffset != 0 &&
pHeader->supercompressionGlobalData.byteLength != 0;
ktx_uint32_t numLevels;
ktxLevelIndexEntry* levelIndex;
ktx_uint32_t levelIndexSize;
KTX_error_code ec = KTX_SUCCESS;
PRINT_INDENT(0, "\"header\":%s{%s", space, nl)
PRINT_INDENT(1, "\"identifier\":%s\"", space)
printIdentifier(pHeader->identifier, true);
printf("\",%s", nl);
const char* vkFormatStr = vkFormatString(pHeader->vkFormat);
if (strcmp(vkFormatStr, "VK_UNKNOWN_FORMAT") == 0)
PRINT_INDENT(1, "\"vkFormat\":%s%u,%s", space, (uint32_t) pHeader->vkFormat, nl)
else
PRINT_INDENT(1, "\"vkFormat\":%s\"%s\",%s", space, vkFormatStr, nl)
PRINT_INDENT(1, "\"typeSize\":%s%u,%s", space, pHeader->typeSize, nl);
PRINT_INDENT(1, "\"pixelWidth\":%s%u,%s", space, pHeader->pixelWidth, nl);
PRINT_INDENT(1, "\"pixelHeight\":%s%u,%s", space, pHeader->pixelHeight, nl);
PRINT_INDENT(1, "\"pixelDepth\":%s%u,%s", space, pHeader->pixelDepth, nl);
PRINT_INDENT(1, "\"layerCount\":%s%u,%s", space, pHeader->layerCount, nl);
PRINT_INDENT(1, "\"faceCount\":%s%u,%s", space, pHeader->faceCount, nl);
PRINT_INDENT(1, "\"levelCount\":%s%u,%s", space, pHeader->levelCount, nl);
const char* scSchemeStr = ktxSupercompressionSchemeString(pHeader->supercompressionScheme);
if (strcmp(scSchemeStr, "Invalid scheme value") == 0 || strcmp(scSchemeStr, "Vendor or reserved scheme") == 0)
PRINT_INDENT(1, "\"supercompressionScheme\":%s%u%s", space, (uint32_t) pHeader->supercompressionScheme, nl)
else
PRINT_INDENT(1, "\"supercompressionScheme\":%s\"%s\"%s", space, scSchemeStr, nl)
PRINT_INDENT_NOARG(0, "}")
numLevels = MAX(1, pHeader->levelCount);
levelIndexSize = sizeof(ktxLevelIndexEntry) * numLevels;
levelIndex = (ktxLevelIndexEntry*)malloc(levelIndexSize);
if (levelIndex == NULL)
return KTX_OUT_OF_MEMORY;
ec = stream->read(stream, levelIndex, levelIndexSize);
if (ec != KTX_SUCCESS) {
printf("%s", nl);
free(levelIndex);
return ec;
}
printf(",%s", nl);
PRINT_INDENT(0, "\"index\":%s{%s", space, nl)
PRINT_INDENT(1, "\"dataFormatDescriptor\":%s{%s", space, nl)
PRINT_INDENT(2, "\"byteOffset\":%s%u,%s", space, pHeader->dataFormatDescriptor.byteOffset, nl);
PRINT_INDENT(2, "\"byteLength\":%s%u%s", space, pHeader->dataFormatDescriptor.byteLength, nl);
PRINT_INDENT(1, "},%s", nl)
PRINT_INDENT(1, "\"keyValueData\":%s{%s", space, nl)
PRINT_INDENT(2, "\"byteOffset\":%s%u,%s", space, pHeader->keyValueData.byteOffset, nl);
PRINT_INDENT(2, "\"byteLength\":%s%u%s", space, pHeader->keyValueData.byteLength, nl);
PRINT_INDENT(1, "},%s", nl)
PRINT_INDENT(1, "\"supercompressionGlobalData\":%s{%s", space, nl)
PRINT_INDENT(2, "\"byteOffset\":%s%" PRId64 ",%s", space, pHeader->supercompressionGlobalData.byteOffset, nl);
PRINT_INDENT(2, "\"byteLength\":%s%" PRId64 "%s", space, pHeader->supercompressionGlobalData.byteLength, nl);
PRINT_INDENT(1, "},%s", nl)
PRINT_INDENT(1, "\"levels\":%s[%s", space, nl)
numLevels = MIN(MAX_NUM_LEVELS, numLevels); // Print at most 64 levels to stop parsing garbage
for (ktx_uint32_t level = 0; level < numLevels; level++) {
PRINT_INDENT(2, "{%s", nl);
PRINT_INDENT(3, "\"byteOffset\":%s%" PRId64 ",%s", space, levelIndex[level].byteOffset, nl);
PRINT_INDENT(3, "\"byteLength\":%s%" PRId64 ",%s", space, levelIndex[level].byteLength, nl);
PRINT_INDENT(3, "\"uncompressedByteLength\":%s%" PRId64 "%s", space, levelIndex[level].uncompressedByteLength, nl);
PRINT_INDENT(2, "}%s%s", level + 1 == numLevels ? "" : ",", nl);
}
PRINT_INDENT(1, "]%s", nl) // End of levels
free(levelIndex);
PRINT_INDENT_NOARG(0, "}") // End of index
if (hasDFD) {
ktx_uint32_t* dfd = (ktx_uint32_t*)malloc(pHeader->dataFormatDescriptor.byteLength);
if (dfd == NULL)
return KTX_OUT_OF_MEMORY;
ec = stream->read(stream, dfd, pHeader->dataFormatDescriptor.byteLength);
if (ec != KTX_SUCCESS) {
printf("%s", nl);
free(dfd);
return ec;
}
printf(",%s", nl);
PRINT_INDENT(0, "\"dataFormatDescriptor\":%s{%s", space, nl)
printDFDJSON(dfd, pHeader->dataFormatDescriptor.byteLength, base_indent + 1, indent_width, minified);
free(dfd);
PRINT_INDENT_NOARG(0, "}")
}
if (hasKVD) {
ktx_uint8_t* kvd = malloc(pHeader->keyValueData.byteLength);
if (kvd == NULL)
return KTX_OUT_OF_MEMORY;
ec = stream->read(stream, kvd, pHeader->keyValueData.byteLength);
if (ec != KTX_SUCCESS) {
printf("%s", nl);
free(kvd);
return ec;
}
printf(",%s", nl);
PRINT_INDENT(0, "\"keyValueData\":%s{%s", space, nl)
printKVDataJSON(kvd, pHeader->keyValueData.byteLength, base_indent + 1, indent_width, minified);
free(kvd);
PRINT_INDENT_NOARG(0, "}")
}
if (hasSGD) {
printf(",%s", nl);
PRINT_INDENT(0, "\"supercompressionGlobalData\":%s{%s", space, nl)
switch (pHeader->supercompressionScheme) {
case KTX_SS_NONE: {
PRINT_INDENT(1, "\"type\":%s\"%s\"%s", space, "KTX_SS_NONE", nl)
break;
}
case KTX_SS_BASIS_LZ: {
PRINT_INDENT(1, "\"type\":%s\"%s\"", space, "KTX_SS_BASIS_LZ")
ktx_size_t sgdByteLength = pHeader->supercompressionGlobalData.byteLength;
ktx_uint8_t* sgd = malloc(sgdByteLength);
if (sgd == NULL)
return KTX_OUT_OF_MEMORY;
ec = stream->setpos(stream, pHeader->supercompressionGlobalData.byteOffset);
if (ec != KTX_SUCCESS) {
printf("%s", nl);
PRINT_INDENT(0, "}%s", nl)
free(sgd);
return ec;
}
ec = stream->read(stream, sgd, sgdByteLength);
if (ec != KTX_SUCCESS) {
printf("%s", nl);
PRINT_INDENT(0, "}%s", nl)
free(sgd);
return ec;
}
// Calculate number of images
uint32_t layersFaces = MAX(pHeader->layerCount, 1) * pHeader->faceCount;
uint32_t layerPixelDepth = MAX(pHeader->pixelDepth, 1);
for (uint32_t level = 1; level < MAX(pHeader->levelCount, 1); level++)
layerPixelDepth += MAX(MAX(pHeader->pixelDepth, 1) >> level, 1U);
// NOTA BENE: faceCount * layerPixelDepth is only reasonable because
// faceCount and depth can't both be > 1. I.e there are no 3d cubemaps.
uint32_t numImages = layersFaces * layerPixelDepth;
ktxBasisLzGlobalHeader* bgdh = (ktxBasisLzGlobalHeader*)(sgd);
if (sgdByteLength < sizeof(ktxBasisLzGlobalHeader)) {
printf("%s", nl);
PRINT_INDENT(0, "}%s", nl)
free(sgd);
return ec;
}
printf(",%s", nl);
PRINT_INDENT(1, "\"endpointCount\":%s%u,%s", space, bgdh->endpointCount, nl)
PRINT_INDENT(1, "\"selectorCount\":%s%u,%s", space, bgdh->selectorCount, nl)
PRINT_INDENT(1, "\"endpointsByteLength\":%s%u,%s", space, bgdh->endpointsByteLength, nl)
PRINT_INDENT(1, "\"selectorsByteLength\":%s%u,%s", space, bgdh->selectorsByteLength, nl)
PRINT_INDENT(1, "\"tablesByteLength\":%s%u,%s", space, bgdh->tablesByteLength, nl)
PRINT_INDENT(1, "\"extendedByteLength\":%s%u,%s", space, bgdh->extendedByteLength, nl)
PRINT_INDENT(1, "\"images\":%s[", space)
ktxBasisLzEtc1sImageDesc* slices = (ktxBasisLzEtc1sImageDesc*)(sgd + sizeof(ktxBasisLzGlobalHeader));
for (ktx_uint32_t i = 0; i < numImages; i++) {
if (sgdByteLength < (i + 1) * sizeof(ktxBasisLzEtc1sImageDesc) + sizeof(ktxBasisLzGlobalHeader))
break;
if (i == 0)
printf("%s", nl);
else
printf(",%s", nl);
PRINT_INDENT(2, "{%s", nl)
buFlags imageFlags = slices[i].imageFlags;
if (imageFlags == 0) {
PRINT_INDENT(3, "\"imageFlags\":%s[],%s", space, nl)
} else {
PRINT_INDENT(3, "\"imageFlags\":%s[%s", space, nl)
printFlagBitsJSON(LENGTH_OF_INDENT(4), nl, imageFlags, ktxBUImageFlagsBitString);
PRINT_INDENT(3, "],%s", nl)
}
PRINT_INDENT(3, "\"rgbSliceByteLength\":%s%u,%s", space, slices[i].rgbSliceByteLength, nl)
PRINT_INDENT(3, "\"rgbSliceByteOffset\":%s%u,%s", space, slices[i].rgbSliceByteOffset, nl)
PRINT_INDENT(3, "\"alphaSliceByteLength\":%s%u,%s", space, slices[i].alphaSliceByteLength, nl)
PRINT_INDENT(3, "\"alphaSliceByteOffset\":%s%u%s", space, slices[i].alphaSliceByteOffset, nl)
PRINT_INDENT_NOARG(2, "}")
}
printf("%s", nl);
PRINT_INDENT(1, "]%s", nl)
free(sgd);
break;
}
case KTX_SS_ZSTD: {
PRINT_INDENT(1, "\"type\":%s\"%s\"%s", space, "KTX_SS_ZSTD", nl)
break;
}
case KTX_SS_ZLIB: {
PRINT_INDENT(1, "\"type\":%s\"%s\"%s", space, "KTX_SS_ZLIB", nl)
break;
}
default:
PRINT_INDENT(1, "\"type\":%s%u%s", space, pHeader->supercompressionScheme, nl)