98 lines
3.6 KiB
C
98 lines
3.6 KiB
C
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/* -*- tab-width: 4; -*- */
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/* vi: set sw=2 ts=4 expandtab: */
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/* Copyright 2019-2020 The Khronos Group Inc.
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* @file
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* @~English
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* @brief Utilities for printing data format descriptors.
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*/
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/*
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* Author: Andrew Garrard
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*/
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#include <stdio.h>
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#include <KHR/khr_df.h>
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#include "dfd.h"
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/**
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* @~English
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* @brief Print a human-readable interpretation of a data format descriptor.
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*
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* @param DFD Pointer to a data format descriptor.
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**/
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void printDFD(uint32_t *DFD)
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{
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uint32_t *BDB = DFD+1;
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int samples = (KHR_DFDVAL(BDB, DESCRIPTORBLOCKSIZE) - 4 * KHR_DF_WORD_SAMPLESTART) / (4 * KHR_DF_WORD_SAMPLEWORDS);
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int sample;
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int model = KHR_DFDVAL(BDB, MODEL);
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printf("DFD total bytes: %d\n", DFD[0]);
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printf("BDB descriptor type 0x%04x vendor id = 0x%05x\n",
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KHR_DFDVAL(BDB, DESCRIPTORTYPE),
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KHR_DFDVAL(BDB, VENDORID));
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printf("Descriptor block size %d (%d samples) versionNumber = 0x%04x\n",
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KHR_DFDVAL(BDB, DESCRIPTORBLOCKSIZE),
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samples,
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KHR_DFDVAL(BDB, VERSIONNUMBER));
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printf("Flags 0x%02x Xfer %02d Primaries %02d Model %03d\n",
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KHR_DFDVAL(BDB, FLAGS),
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KHR_DFDVAL(BDB, TRANSFER),
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KHR_DFDVAL(BDB, PRIMARIES),
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model);
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printf("Dimensions: %d,%d,%d,%d\n",
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KHR_DFDVAL(BDB, TEXELBLOCKDIMENSION0) + 1,
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KHR_DFDVAL(BDB, TEXELBLOCKDIMENSION1) + 1,
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KHR_DFDVAL(BDB, TEXELBLOCKDIMENSION2) + 1,
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KHR_DFDVAL(BDB, TEXELBLOCKDIMENSION3) + 1);
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printf("Plane bytes: %d,%d,%d,%d,%d,%d,%d,%d\n",
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KHR_DFDVAL(BDB, BYTESPLANE0),
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KHR_DFDVAL(BDB, BYTESPLANE1),
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KHR_DFDVAL(BDB, BYTESPLANE2),
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KHR_DFDVAL(BDB, BYTESPLANE3),
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KHR_DFDVAL(BDB, BYTESPLANE4),
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KHR_DFDVAL(BDB, BYTESPLANE5),
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KHR_DFDVAL(BDB, BYTESPLANE6),
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KHR_DFDVAL(BDB, BYTESPLANE7));
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for (sample = 0; sample < samples; ++sample) {
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int channelId = KHR_DFDSVAL(BDB, sample, CHANNELID);
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printf(" Sample %d\n", sample);
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printf("Qualifiers %x", KHR_DFDSVAL(BDB, sample, QUALIFIERS) >> 4);
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printf(" Channel 0x%x", channelId);
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if (model == KHR_DF_MODEL_UASTC) {
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printf(" (%s)",
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channelId == KHR_DF_CHANNEL_UASTC_RRRG ? "RRRG"
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: channelId == KHR_DF_CHANNEL_UASTC_RGBA ? "RGBA"
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: channelId == KHR_DF_CHANNEL_UASTC_RRR ? "RRR"
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: channelId == KHR_DF_CHANNEL_UASTC_RGB ? "RGB"
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: channelId == KHR_DF_CHANNEL_UASTC_RG ? "RG"
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: "unknown");
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} else if (model == KHR_DF_MODEL_ETC1S) {
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printf(" (%s)",
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channelId == KHR_DF_CHANNEL_ETC1S_AAA ? "AAA"
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: channelId == KHR_DF_CHANNEL_ETC1S_GGG ? "GGG"
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: channelId == KHR_DF_CHANNEL_ETC1S_RRR ? "RRR"
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: channelId == KHR_DF_CHANNEL_ETC1S_RGB ? "RGB"
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: "unknown");
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} else {
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printf(" (%c)",
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"RGB3456789abcdeA"[channelId]);
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}
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printf(" Length %d bits Offset %d\n",
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KHR_DFDSVAL(BDB, sample, BITLENGTH) + 1,
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KHR_DFDSVAL(BDB, sample, BITOFFSET));
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printf("Position: %d,%d,%d,%d\n",
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KHR_DFDSVAL(BDB, sample, SAMPLEPOSITION0),
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KHR_DFDSVAL(BDB, sample, SAMPLEPOSITION1),
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KHR_DFDSVAL(BDB, sample, SAMPLEPOSITION2),
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KHR_DFDSVAL(BDB, sample, SAMPLEPOSITION3));
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printf("Lower 0x%08x\nUpper 0x%08x\n",
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KHR_DFDSVAL(BDB, sample, SAMPLELOWER),
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KHR_DFDSVAL(BDB, sample, SAMPLEUPPER));
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}
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}
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