mirror of
https://github.com/FFmpeg/FFmpeg.git
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avcodec/dxv: add support for "high" quality mode
Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol
parent
aedbf1640c
commit
250792be5e
809
libavcodec/dxv.c
809
libavcodec/dxv.c
@ -1,6 +1,7 @@
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/*
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* Resolume DXV decoder
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* Copyright (C) 2015 Vittorio Giovara <vittorio.giovara@gmail.com>
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* Copyright (C) 2018 Paul B Mahol
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*
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* This file is part of FFmpeg.
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*
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@ -23,6 +24,7 @@
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#include "libavutil/imgutils.h"
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#include "mathops.h"
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#include "avcodec.h"
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#include "bytestream.h"
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#include "internal.h"
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@ -34,50 +36,211 @@ typedef struct DXVContext {
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TextureDSPContext texdsp;
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GetByteContext gbc;
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uint8_t *tex_data; // Compressed texture
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int tex_rat; // Compression ratio
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int tex_step; // Distance between blocks
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int64_t tex_size; // Texture size
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uint8_t *tex_data; // Compressed texture
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uint8_t *ctex_data; // Compressed texture
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int tex_rat; // Compression ratio
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int tex_step; // Distance between blocks
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int ctex_step; // Distance between blocks
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int64_t tex_size; // Texture size
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int64_t ctex_size; // Texture size
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/* Optimal number of slices for parallel decoding */
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int slice_count;
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uint8_t *op_data[4]; // Opcodes
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int64_t op_size[4]; // Opcodes size
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int texture_block_w;
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int texture_block_h;
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int ctexture_block_w;
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int ctexture_block_h;
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/* Pointer to the selected decompression function */
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int (*tex_funct)(uint8_t *dst, ptrdiff_t stride, const uint8_t *block);
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int (*tex_funct_planar[2])(uint8_t *plane0, ptrdiff_t stride0,
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uint8_t *plane1, ptrdiff_t stride1,
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const uint8_t *block);
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} DXVContext;
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static void decompress_indices(uint8_t *dst, const uint8_t *src)
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{
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int block, i;
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for (block = 0; block < 2; block++) {
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int tmp = AV_RL24(src);
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/* Unpack 8x3 bit from last 3 byte block */
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for (i = 0; i < 8; i++)
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dst[i] = (tmp >> (i * 3)) & 0x7;
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src += 3;
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dst += 8;
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}
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}
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static int extract_component(int yo0, int yo1, int code)
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{
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int yo;
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if (yo0 == yo1) {
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yo = yo0;
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} else if (code == 0) {
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yo = yo0;
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} else if (code == 1) {
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yo = yo1;
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} else {
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if (yo0 > yo1) {
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yo = (uint8_t) (((8 - code) * yo0 +
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(code - 1) * yo1) / 7);
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} else {
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if (code == 6) {
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yo = 0;
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} else if (code == 7) {
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yo = 255;
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} else {
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yo = (uint8_t) (((6 - code) * yo0 +
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(code - 1) * yo1) / 5);
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}
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}
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}
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return yo;
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}
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static int cocg_block(uint8_t *plane0, ptrdiff_t stride0,
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uint8_t *plane1, ptrdiff_t stride1,
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const uint8_t *block)
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{
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uint8_t co_indices[16];
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uint8_t cg_indices[16];
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uint8_t co0 = *(block);
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uint8_t co1 = *(block + 1);
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uint8_t cg0 = *(block + 8);
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uint8_t cg1 = *(block + 9);
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int x, y;
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decompress_indices(co_indices, block + 2);
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decompress_indices(cg_indices, block + 10);
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for (y = 0; y < 4; y++) {
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for (x = 0; x < 4; x++) {
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int co_code = co_indices[x + y * 4];
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int cg_code = cg_indices[x + y * 4];
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plane0[x] = extract_component(cg0, cg1, cg_code);
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plane1[x] = extract_component(co0, co1, co_code);
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}
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plane0 += stride0;
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plane1 += stride1;
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}
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return 16;
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}
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static void yao_subblock(uint8_t *dst, uint8_t *yo_indices,
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ptrdiff_t stride, const uint8_t *block)
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{
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uint8_t yo0 = *(block);
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uint8_t yo1 = *(block + 1);
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int x, y;
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decompress_indices(yo_indices, block + 2);
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for (y = 0; y < 4; y++) {
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for (x = 0; x < 4; x++) {
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int yo_code = yo_indices[x + y * 4];
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dst[x] = extract_component(yo0, yo1, yo_code);
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}
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dst += stride;
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}
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}
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static int yo_block(uint8_t *dst, ptrdiff_t stride,
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uint8_t *unused0, ptrdiff_t unused1,
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const uint8_t *block)
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{
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uint8_t yo_indices[16];
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yao_subblock(dst, yo_indices, stride, block);
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yao_subblock(dst + 4, yo_indices, stride, block + 8);
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yao_subblock(dst + 8, yo_indices, stride, block + 16);
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yao_subblock(dst + 12, yo_indices, stride, block + 24);
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return 32;
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}
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static int yao_block(uint8_t *plane0, ptrdiff_t stride0,
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uint8_t *plane3, ptrdiff_t stride1,
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const uint8_t *block)
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{
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uint8_t yo_indices[16];
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uint8_t a_indices[16];
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yao_subblock(plane0, yo_indices, stride0, block);
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yao_subblock(plane3, a_indices, stride1, block + 8);
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yao_subblock(plane0 + 4, yo_indices, stride0, block + 16);
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yao_subblock(plane3 + 4, a_indices, stride1, block + 24);
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yao_subblock(plane0 + 8, yo_indices, stride0, block + 32);
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yao_subblock(plane3 + 8, a_indices, stride1, block + 40);
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yao_subblock(plane0 + 12, yo_indices, stride0, block + 48);
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yao_subblock(plane3 + 12, a_indices, stride1, block + 56);
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return 64;
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}
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static int decompress_texture_thread(AVCodecContext *avctx, void *arg,
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int slice, int thread_nb)
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{
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DXVContext *ctx = avctx->priv_data;
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AVFrame *frame = arg;
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const uint8_t *d = ctx->tex_data;
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int w_block = avctx->coded_width / TEXTURE_BLOCK_W;
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int h_block = avctx->coded_height / TEXTURE_BLOCK_H;
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int w_block = avctx->coded_width / ctx->texture_block_w;
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int h_block = avctx->coded_height / ctx->texture_block_h;
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int x, y;
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int start_slice, end_slice;
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int base_blocks_per_slice = h_block / ctx->slice_count;
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int remainder_blocks = h_block % ctx->slice_count;
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/* When the frame height (in blocks) doesn't divide evenly between the
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* number of slices, spread the remaining blocks evenly between the first
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* operations */
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start_slice = slice * base_blocks_per_slice;
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/* Add any extra blocks (one per slice) that have been added
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* before this slice */
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start_slice += FFMIN(slice, remainder_blocks);
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start_slice = h_block * slice / ctx->slice_count;
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end_slice = h_block * (slice + 1) / ctx->slice_count;
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end_slice = start_slice + base_blocks_per_slice;
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/* Add an extra block if there are remainder blocks to be accounted for */
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if (slice < remainder_blocks)
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end_slice++;
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if (ctx->tex_funct) {
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for (y = start_slice; y < end_slice; y++) {
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uint8_t *p = frame->data[0] + y * frame->linesize[0] * ctx->texture_block_h;
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int off = y * w_block;
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for (x = 0; x < w_block; x++) {
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ctx->tex_funct(p + x * 4 * ctx->texture_block_w, frame->linesize[0],
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d + (off + x) * ctx->tex_step);
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}
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}
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} else {
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const uint8_t *c = ctx->ctex_data;
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for (y = start_slice; y < end_slice; y++) {
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uint8_t *p = frame->data[0] + y * frame->linesize[0] * TEXTURE_BLOCK_H;
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int off = y * w_block;
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for (x = 0; x < w_block; x++) {
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ctx->tex_funct(p + x * 16, frame->linesize[0],
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d + (off + x) * ctx->tex_step);
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for (y = start_slice; y < end_slice; y++) {
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uint8_t *p0 = frame->data[0] + y * frame->linesize[0] * ctx->texture_block_h;
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uint8_t *p3 = ctx->tex_step != 64 ? NULL : frame->data[3] + y * frame->linesize[3] * ctx->texture_block_h;
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int off = y * w_block;
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for (x = 0; x < w_block; x++) {
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ctx->tex_funct_planar[0](p0 + x * ctx->texture_block_w, frame->linesize[0],
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p3 != NULL ? p3 + x * ctx->texture_block_w : NULL, frame->linesize[3],
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d + (off + x) * ctx->tex_step);
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}
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}
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w_block = (avctx->coded_width / 2) / ctx->ctexture_block_w;
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h_block = (avctx->coded_height / 2) / ctx->ctexture_block_h;
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start_slice = h_block * slice / ctx->slice_count;
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end_slice = h_block * (slice + 1) / ctx->slice_count;
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for (y = start_slice; y < end_slice; y++) {
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uint8_t *p0 = frame->data[1] + y * frame->linesize[1] * ctx->ctexture_block_h;
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uint8_t *p1 = frame->data[2] + y * frame->linesize[2] * ctx->ctexture_block_h;
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int off = y * w_block;
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for (x = 0; x < w_block; x++) {
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ctx->tex_funct_planar[1](p0 + x * ctx->ctexture_block_w, frame->linesize[1],
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p1 + x * ctx->ctexture_block_w, frame->linesize[2],
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c + (off + x) * ctx->ctex_step);
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}
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}
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}
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@ -169,6 +332,529 @@ static int dxv_decompress_dxt1(AVCodecContext *avctx)
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return 0;
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}
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typedef struct OpcodeTable {
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int16_t next;
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uint8_t val1;
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uint8_t val2;
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} OpcodeTable;
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static int fill_ltable(GetByteContext *gb, uint32_t *table, int *nb_elements)
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{
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unsigned half = 512, bits = 1023, left = 1024, input, mask;
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int value, counter = 0, rshift = 10, lshift = 30;
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mask = bytestream2_get_le32(gb) >> 2;
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while (left) {
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if (counter >= 256)
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return AVERROR_INVALIDDATA;
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value = bits & mask;
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left -= bits & mask;
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mask >>= rshift;
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lshift -= rshift;
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table[counter++] = value;
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if (lshift < 16) {
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if (bytestream2_get_bytes_left(gb) <= 0)
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return AVERROR_INVALIDDATA;
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input = bytestream2_get_le16(gb);
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mask += input << lshift;
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lshift += 16;
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}
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if (left < half) {
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half >>= 1;
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bits >>= 1;
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rshift--;
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}
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}
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for (; !table[counter - 1]; counter--)
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if (counter <= 0)
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return AVERROR_INVALIDDATA;
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*nb_elements = counter;
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if (counter < 256)
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memset(&table[counter], 0, 4 * (256 - counter));
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if (lshift >= 16)
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bytestream2_seek(gb, -2, SEEK_CUR);
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return 0;
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}
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static int fill_optable(unsigned *table0, OpcodeTable *table1, int nb_elements)
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{
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unsigned table2[256] = { 0 };
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unsigned x = 0;
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int val0, val1, i, j = 2, k = 0;
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table2[0] = table0[0];
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for (i = 0; i < nb_elements - 1; i++, table2[i] = val0) {
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val0 = table0[i + 1] + table2[i];
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}
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if (!table2[0]) {
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do {
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k++;
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} while (!table2[k]);
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}
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j = 2;
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for (i = 1024; i > 0; i--) {
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for (table1[x].val1 = k; k < 256 && j > table2[k]; k++);
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x = (x - 383) & 0x3FF;
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j++;
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}
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if (nb_elements > 0)
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memcpy(&table2[0], table0, 4 * nb_elements);
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for (i = 0; i < 1024; i++) {
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val0 = table1[i].val1;
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val1 = table2[val0];
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table2[val0]++;
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x = 31 - ff_clz(val1);
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if (x > 10)
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return AVERROR_INVALIDDATA;
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table1[i].val2 = 10 - x;
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table1[i].next = (val1 << table1[i].val2) - 1024;
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}
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return 0;
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}
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static int get_opcodes(GetByteContext *gb, uint32_t *table, uint8_t *dst, int op_size, int nb_elements)
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{
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OpcodeTable optable[1024];
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int sum, x, val, lshift, rshift, ret, size_in_bits, i, idx;
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unsigned endoffset, newoffset, offset;
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unsigned next;
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uint8_t *src = (uint8_t *)gb->buffer;
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ret = fill_optable(table, optable, nb_elements);
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if (ret < 0)
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return ret;
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size_in_bits = bytestream2_get_le32(gb);
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endoffset = ((size_in_bits + 7) >> 3) - 4;
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if (endoffset <= 0 || bytestream2_get_bytes_left(gb) < endoffset)
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return AVERROR_INVALIDDATA;
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offset = endoffset;
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next = AV_RL32(src + endoffset);
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rshift = (((size_in_bits & 0xFF) - 1) & 7) + 15;
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lshift = 32 - rshift;
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idx = (next >> rshift) & 0x3FF;
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for (i = 0; i < op_size; i++) {
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dst[i] = optable[idx].val1;
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val = optable[idx].val2;
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sum = val + lshift;
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x = (next << lshift) >> 1 >> (31 - val);
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newoffset = offset - (sum >> 3);
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lshift = sum & 7;
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idx = x + optable[idx].next;
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offset = newoffset;
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if (offset > endoffset)
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return AVERROR_INVALIDDATA;
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next = AV_RL32(src + offset);
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}
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bytestream2_skip(gb, (size_in_bits + 7 >> 3) - 4);
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return 0;
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}
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static int dxv_decompress_opcodes(GetByteContext *gb, void *dstp, size_t op_size)
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{
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int pos = bytestream2_tell(gb);
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int flag = bytestream2_peek_byte(gb);
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if ((flag & 3) == 0) {
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bytestream2_skip(gb, 1);
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bytestream2_get_buffer(gb, dstp, op_size);
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} else if ((flag & 3) == 1) {
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bytestream2_skip(gb, 1);
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memset(dstp, bytestream2_get_byte(gb), op_size);
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} else {
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uint32_t table[256];
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int ret, elements = 0;
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ret = fill_ltable(gb, table, &elements);
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if (ret < 0)
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return ret;
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ret = get_opcodes(gb, table, dstp, op_size, elements);
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if (ret < 0)
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return ret;
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}
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return bytestream2_tell(gb) - pos;
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}
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static int dxv_decompress_cgo(DXVContext *ctx, GetByteContext *gb,
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uint8_t *tex_data, int tex_size,
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uint8_t *op_data, int *oindex,
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int op_size,
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uint8_t **dstp, int *statep,
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uint8_t **tab0, uint8_t **tab1,
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int offset)
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{
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uint8_t *dst = *dstp;
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uint8_t *tptr0, *tptr1, *tptr3;
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int oi = *oindex;
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int state = *statep;
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int opcode, v, vv;
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if (state <= 0) {
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if (oi >= op_size)
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return AVERROR_INVALIDDATA;
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opcode = op_data[oi++];
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if (!opcode) {
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v = bytestream2_get_byte(gb);
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if (v == 255) {
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do {
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if (bytestream2_get_bytes_left(gb) <= 0)
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return AVERROR_INVALIDDATA;
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opcode = bytestream2_get_le16(gb);
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v += opcode;
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} while (opcode == 0xFFFF);
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}
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AV_WL32(dst, AV_RL32(dst - (8 + offset)));
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AV_WL32(dst + 4, AV_RL32(dst - (4 + offset)));
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state = v + 4;
|
||||
goto done;
|
||||
}
|
||||
|
||||
switch (opcode) {
|
||||
case 1:
|
||||
AV_WL32(dst, AV_RL32(dst - (8 + offset)));
|
||||
AV_WL32(dst + 4, AV_RL32(dst - (4 + offset)));
|
||||
break;
|
||||
case 2:
|
||||
vv = (8 + offset) * (bytestream2_get_le16(gb) + 1);
|
||||
if (vv < 0 || vv > dst - tex_data)
|
||||
return AVERROR_INVALIDDATA;
|
||||
tptr0 = dst - vv;
|
||||
v = AV_RL32(tptr0);
|
||||
AV_WL32(dst, AV_RL32(tptr0));
|
||||
AV_WL32(dst + 4, AV_RL32(tptr0 + 4));
|
||||
tab0[0x9E3779B1 * (uint16_t)v >> 24] = dst;
|
||||
tab1[0x9E3779B1 * (AV_RL32(dst + 2) & 0xFFFFFFu) >> 24] = dst + 2;
|
||||
break;
|
||||
case 3:
|
||||
AV_WL32(dst, bytestream2_get_le32(gb));
|
||||
AV_WL32(dst + 4, bytestream2_get_le32(gb));
|
||||
tab0[0x9E3779B1 * AV_RL16(dst) >> 24] = dst;
|
||||
tab1[0x9E3779B1 * (AV_RL32(dst + 2) & 0xFFFFFFu) >> 24] = dst + 2;
|
||||
break;
|
||||
case 4:
|
||||
tptr3 = tab1[bytestream2_get_byte(gb)];
|
||||
if (!tptr3)
|
||||
return AVERROR_INVALIDDATA;
|
||||
AV_WL16(dst, bytestream2_get_le16(gb));
|
||||
AV_WL16(dst + 2, AV_RL16(tptr3));
|
||||
dst[4] = tptr3[2];
|
||||
AV_WL16(dst + 5, bytestream2_get_le16(gb));
|
||||
dst[7] = bytestream2_get_byte(gb);
|
||||
tab0[0x9E3779B1 * AV_RL16(dst) >> 24] = dst;
|
||||
break;
|
||||
case 5:
|
||||
tptr3 = tab1[bytestream2_get_byte(gb)];
|
||||
if (!tptr3)
|
||||
return AVERROR_INVALIDDATA;
|
||||
AV_WL16(dst, bytestream2_get_le16(gb));
|
||||
AV_WL16(dst + 2, bytestream2_get_le16(gb));
|
||||
dst[4] = bytestream2_get_byte(gb);
|
||||
AV_WL16(dst + 5, AV_RL16(tptr3));
|
||||
dst[7] = tptr3[2];
|
||||
tab0[0x9E3779B1 * AV_RL16(dst) >> 24] = dst;
|
||||
tab1[0x9E3779B1 * (AV_RL32(dst + 2) & 0xFFFFFFu) >> 24] = dst + 2;
|
||||
break;
|
||||
case 6:
|
||||
tptr0 = tab1[bytestream2_get_byte(gb)];
|
||||
if (!tptr0)
|
||||
return AVERROR_INVALIDDATA;
|
||||
tptr1 = tab1[bytestream2_get_byte(gb)];
|
||||
if (!tptr1)
|
||||
return AVERROR_INVALIDDATA;
|
||||
AV_WL16(dst, bytestream2_get_le16(gb));
|
||||
AV_WL16(dst + 2, AV_RL16(tptr0));
|
||||
dst[4] = tptr0[2];
|
||||
AV_WL16(dst + 5, AV_RL16(tptr1));
|
||||
dst[7] = tptr1[2];
|
||||
tab0[0x9E3779B1 * AV_RL16(dst) >> 24] = dst;
|
||||
break;
|
||||
case 7:
|
||||
v = (8 + offset) * (bytestream2_get_le16(gb) + 1);
|
||||
if (v < 0 || v > dst - tex_data)
|
||||
return AVERROR_INVALIDDATA;
|
||||
tptr0 = dst - v;
|
||||
AV_WL16(dst, bytestream2_get_le16(gb));
|
||||
AV_WL16(dst + 2, AV_RL16(tptr0 + 2));
|
||||
AV_WL32(dst + 4, AV_RL32(tptr0 + 4));
|
||||
tab0[0x9E3779B1 * AV_RL16(dst) >> 24] = dst;
|
||||
tab1[0x9E3779B1 * (AV_RL32(dst + 2) & 0xFFFFFFu) >> 24] = dst + 2;
|
||||
break;
|
||||
case 8:
|
||||
tptr1 = tab0[bytestream2_get_byte(gb)];
|
||||
if (!tptr1)
|
||||
return AVERROR_INVALIDDATA;
|
||||
AV_WL16(dst, AV_RL16(tptr1));
|
||||
AV_WL16(dst + 2, bytestream2_get_le16(gb));
|
||||
AV_WL32(dst + 4, bytestream2_get_le32(gb));
|
||||
tab1[0x9E3779B1 * (AV_RL32(dst + 2) & 0xFFFFFFu) >> 24] = dst + 2;
|
||||
break;
|
||||
case 9:
|
||||
tptr1 = tab0[bytestream2_get_byte(gb)];
|
||||
if (!tptr1)
|
||||
return AVERROR_INVALIDDATA;
|
||||
tptr3 = tab1[bytestream2_get_byte(gb)];
|
||||
if (!tptr3)
|
||||
return AVERROR_INVALIDDATA;
|
||||
AV_WL16(dst, AV_RL16(tptr1));
|
||||
AV_WL16(dst + 2, AV_RL16(tptr3));
|
||||
dst[4] = tptr3[2];
|
||||
AV_WL16(dst + 5, bytestream2_get_le16(gb));
|
||||
dst[7] = bytestream2_get_byte(gb);
|
||||
tab1[0x9E3779B1 * (AV_RL32(dst + 2) & 0xFFFFFFu) >> 24] = dst + 2;
|
||||
break;
|
||||
case 10:
|
||||
tptr1 = tab0[bytestream2_get_byte(gb)];
|
||||
if (!tptr1)
|
||||
return AVERROR_INVALIDDATA;
|
||||
tptr3 = tab1[bytestream2_get_byte(gb)];
|
||||
if (!tptr3)
|
||||
return AVERROR_INVALIDDATA;
|
||||
AV_WL16(dst, AV_RL16(tptr1));
|
||||
AV_WL16(dst + 2, bytestream2_get_le16(gb));
|
||||
dst[4] = bytestream2_get_byte(gb);
|
||||
AV_WL16(dst + 5, AV_RL16(tptr3));
|
||||
dst[7] = tptr3[2];
|
||||
tab1[0x9E3779B1 * (AV_RL32(dst + 2) & 0xFFFFFFu) >> 24] = dst + 2;
|
||||
break;
|
||||
case 11:
|
||||
tptr0 = tab0[bytestream2_get_byte(gb)];
|
||||
if (!tptr0)
|
||||
return AVERROR_INVALIDDATA;
|
||||
tptr3 = tab1[bytestream2_get_byte(gb)];
|
||||
if (!tptr3)
|
||||
return AVERROR_INVALIDDATA;
|
||||
tptr1 = tab1[bytestream2_get_byte(gb)];
|
||||
if (!tptr1)
|
||||
return AVERROR_INVALIDDATA;
|
||||
AV_WL16(dst, AV_RL16(tptr0));
|
||||
AV_WL16(dst + 2, AV_RL16(tptr3));
|
||||
dst[4] = tptr3[2];
|
||||
AV_WL16(dst + 5, AV_RL16(tptr1));
|
||||
dst[7] = tptr1[2];
|
||||
break;
|
||||
case 12:
|
||||
tptr1 = tab0[bytestream2_get_byte(gb)];
|
||||
if (!tptr1)
|
||||
return AVERROR_INVALIDDATA;
|
||||
v = (8 + offset) * (bytestream2_get_le16(gb) + 1);
|
||||
if (v < 0 || v > dst - tex_data)
|
||||
return AVERROR_INVALIDDATA;
|
||||
tptr0 = dst - v;
|
||||
AV_WL16(dst, AV_RL16(tptr1));
|
||||
AV_WL16(dst + 2, AV_RL16(tptr0 + 2));
|
||||
AV_WL32(dst + 4, AV_RL32(tptr0 + 4));
|
||||
tab1[0x9E3779B1 * (AV_RL32(dst + 2) & 0xFFFFFFu) >> 24] = dst + 2;
|
||||
break;
|
||||
case 13:
|
||||
AV_WL16(dst, AV_RL16(dst - (8 + offset)));
|
||||
AV_WL16(dst + 2, bytestream2_get_le16(gb));
|
||||
AV_WL32(dst + 4, bytestream2_get_le32(gb));
|
||||
tab1[0x9E3779B1 * (AV_RL32(dst + 2) & 0xFFFFFFu) >> 24] = dst + 2;
|
||||
break;
|
||||
case 14:
|
||||
tptr3 = tab1[bytestream2_get_byte(gb)];
|
||||
if (!tptr3)
|
||||
return AVERROR_INVALIDDATA;
|
||||
AV_WL16(dst, AV_RL16(dst - (8 + offset)));
|
||||
AV_WL16(dst + 2, AV_RL16(tptr3));
|
||||
dst[4] = tptr3[2];
|
||||
AV_WL16(dst + 5, bytestream2_get_le16(gb));
|
||||
dst[7] = bytestream2_get_byte(gb);
|
||||
tab1[0x9E3779B1 * (AV_RL32(dst + 2) & 0xFFFFFFu) >> 24] = dst + 2;
|
||||
break;
|
||||
case 15:
|
||||
tptr3 = tab1[bytestream2_get_byte(gb)];
|
||||
if (!tptr3)
|
||||
return AVERROR_INVALIDDATA;
|
||||
AV_WL16(dst, AV_RL16(dst - (8 + offset)));
|
||||
AV_WL16(dst + 2, bytestream2_get_le16(gb));
|
||||
dst[4] = bytestream2_get_byte(gb);
|
||||
AV_WL16(dst + 5, AV_RL16(tptr3));
|
||||
dst[7] = tptr3[2];
|
||||
tab1[0x9E3779B1 * (AV_RL32(dst + 2) & 0xFFFFFFu) >> 24] = dst + 2;
|
||||
break;
|
||||
case 16:
|
||||
tptr3 = tab1[bytestream2_get_byte(gb)];
|
||||
if (!tptr3)
|
||||
return AVERROR_INVALIDDATA;
|
||||
tptr1 = tab1[bytestream2_get_byte(gb)];
|
||||
if (!tptr1)
|
||||
return AVERROR_INVALIDDATA;
|
||||
AV_WL16(dst, AV_RL16(dst - (8 + offset)));
|
||||
AV_WL16(dst + 2, AV_RL16(tptr3));
|
||||
dst[4] = tptr3[2];
|
||||
AV_WL16(dst + 5, AV_RL16(tptr1));
|
||||
dst[7] = tptr1[2];
|
||||
break;
|
||||
case 17:
|
||||
v = (8 + offset) * (bytestream2_get_le16(gb) + 1);
|
||||
if (v < 0 || v > dst - tex_data)
|
||||
return AVERROR_INVALIDDATA;
|
||||
AV_WL16(dst, AV_RL16(dst - (8 + offset)));
|
||||
AV_WL16(dst + 2, AV_RL16(&dst[-v + 2]));
|
||||
AV_WL32(dst + 4, AV_RL32(&dst[-v + 4]));
|
||||
tab1[0x9E3779B1 * (AV_RL32(dst + 2) & 0xFFFFFFu) >> 24] = dst + 2;
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
} else {
|
||||
done:
|
||||
AV_WL32(dst, AV_RL32(dst - (8 + offset)));
|
||||
AV_WL32(dst + 4, AV_RL32(dst - (4 + offset)));
|
||||
state--;
|
||||
}
|
||||
if (dst - tex_data + 8 > tex_size)
|
||||
return AVERROR_INVALIDDATA;
|
||||
dst += 8;
|
||||
|
||||
*oindex = oi;
|
||||
*dstp = dst;
|
||||
*statep = state;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int dxv_decompress_cocg(DXVContext *ctx, GetByteContext *gb,
|
||||
uint8_t *tex_data, int tex_size,
|
||||
uint8_t *op_data0, uint8_t *op_data1,
|
||||
int max_op_size0, int max_op_size1)
|
||||
{
|
||||
uint8_t *dst, *tab2[256] = { 0 }, *tab0[256] = { 0 }, *tab3[256] = { 0 }, *tab1[256] = { 0 };
|
||||
int op_offset = bytestream2_get_le32(gb);
|
||||
unsigned op_size0 = bytestream2_get_le32(gb);
|
||||
unsigned op_size1 = bytestream2_get_le32(gb);
|
||||
int data_start = bytestream2_tell(gb);
|
||||
int skip0, skip1, oi0 = 0, oi1 = 0;
|
||||
int ret, state0 = 0, state1 = 0;
|
||||
|
||||
dst = tex_data;
|
||||
bytestream2_skip(gb, op_offset - 12);
|
||||
if (op_size0 > max_op_size0)
|
||||
return AVERROR_INVALIDDATA;
|
||||
skip0 = dxv_decompress_opcodes(gb, op_data0, op_size0);
|
||||
if (skip0 < 0)
|
||||
return skip0;
|
||||
bytestream2_seek(gb, data_start + op_offset + skip0 - 12, SEEK_SET);
|
||||
if (op_size1 > max_op_size1)
|
||||
return AVERROR_INVALIDDATA;
|
||||
skip1 = dxv_decompress_opcodes(gb, op_data1, op_size1);
|
||||
if (skip1 < 0)
|
||||
return skip1;
|
||||
bytestream2_seek(gb, data_start, SEEK_SET);
|
||||
|
||||
AV_WL32(dst, bytestream2_get_le32(gb));
|
||||
AV_WL32(dst + 4, bytestream2_get_le32(gb));
|
||||
AV_WL32(dst + 8, bytestream2_get_le32(gb));
|
||||
AV_WL32(dst + 12, bytestream2_get_le32(gb));
|
||||
|
||||
tab0[0x9E3779B1 * AV_RL16(dst) >> 24] = dst;
|
||||
tab1[0x9E3779B1 * (AV_RL32(dst + 2) & 0xFFFFFF) >> 24] = dst + 2;
|
||||
tab2[0x9E3779B1 * AV_RL16(dst + 8) >> 24] = dst + 8;
|
||||
tab3[0x9E3779B1 * (AV_RL32(dst + 10) & 0xFFFFFF) >> 24] = dst + 10;
|
||||
dst += 16;
|
||||
while (dst + 10 < tex_data + tex_size) {
|
||||
ret = dxv_decompress_cgo(ctx, gb, tex_data, tex_size, op_data0, &oi0, op_size0,
|
||||
&dst, &state0, tab0, tab1, 8);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
ret = dxv_decompress_cgo(ctx, gb, tex_data, tex_size, op_data1, &oi1, op_size1,
|
||||
&dst, &state1, tab2, tab3, 8);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
}
|
||||
|
||||
bytestream2_seek(gb, data_start + op_offset + skip0 + skip1 - 12, SEEK_SET);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int dxv_decompress_yo(DXVContext *ctx, GetByteContext *gb,
|
||||
uint8_t *tex_data, int tex_size,
|
||||
uint8_t *op_data, int max_op_size)
|
||||
{
|
||||
int op_offset = bytestream2_get_le32(gb);
|
||||
unsigned op_size = bytestream2_get_le32(gb);
|
||||
int data_start = bytestream2_tell(gb);
|
||||
uint8_t *dst, *table0[256] = { 0 }, *table1[256] = { 0 };
|
||||
int ret, state = 0, skip, oi = 0, v, vv;
|
||||
|
||||
dst = tex_data;
|
||||
bytestream2_skip(gb, op_offset - 8);
|
||||
if (op_size > max_op_size)
|
||||
return AVERROR_INVALIDDATA;
|
||||
skip = dxv_decompress_opcodes(gb, op_data, op_size);
|
||||
if (skip < 0)
|
||||
return skip;
|
||||
bytestream2_seek(gb, data_start, SEEK_SET);
|
||||
|
||||
v = bytestream2_get_le32(gb);
|
||||
AV_WL32(dst, v);
|
||||
vv = bytestream2_get_le32(gb);
|
||||
table0[0x9E3779B1 * (uint16_t)v >> 24] = dst;
|
||||
AV_WL32(dst + 4, vv);
|
||||
table1[0x9E3779B1 * (AV_RL32(dst + 2) & 0xFFFFFF) >> 24] = dst + 2;
|
||||
dst += 8;
|
||||
|
||||
while (dst < tex_data + tex_size) {
|
||||
ret = dxv_decompress_cgo(ctx, gb, tex_data, tex_size, op_data, &oi, op_size,
|
||||
&dst, &state, table0, table1, 0);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
}
|
||||
|
||||
bytestream2_seek(gb, data_start + op_offset + skip - 8, SEEK_SET);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int dxv_decompress_ycg6(AVCodecContext *avctx)
|
||||
{
|
||||
DXVContext *ctx = avctx->priv_data;
|
||||
GetByteContext *gb = &ctx->gbc;
|
||||
int ret;
|
||||
|
||||
ret = dxv_decompress_yo(ctx, gb, ctx->tex_data, ctx->tex_size,
|
||||
ctx->op_data[0], ctx->op_size[0]);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
return dxv_decompress_cocg(ctx, gb, ctx->ctex_data, ctx->ctex_size,
|
||||
ctx->op_data[1], ctx->op_data[2],
|
||||
ctx->op_size[1], ctx->op_size[2]);
|
||||
}
|
||||
|
||||
static int dxv_decompress_yg10(AVCodecContext *avctx)
|
||||
{
|
||||
DXVContext *ctx = avctx->priv_data;
|
||||
GetByteContext *gb = &ctx->gbc;
|
||||
int ret;
|
||||
|
||||
ret = dxv_decompress_cocg(ctx, gb, ctx->tex_data, ctx->tex_size,
|
||||
ctx->op_data[0], ctx->op_data[3],
|
||||
ctx->op_size[0], ctx->op_size[3]);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
return dxv_decompress_cocg(ctx, gb, ctx->ctex_data, ctx->ctex_size,
|
||||
ctx->op_data[1], ctx->op_data[2],
|
||||
ctx->op_size[1], ctx->op_size[2]);
|
||||
}
|
||||
|
||||
static int dxv_decompress_dxt5(AVCodecContext *avctx)
|
||||
{
|
||||
DXVContext *ctx = avctx->priv_data;
|
||||
@ -359,6 +1045,12 @@ static int dxv_decode(AVCodecContext *avctx, void *data,
|
||||
|
||||
bytestream2_init(gbc, avpkt->data, avpkt->size);
|
||||
|
||||
ctx->texture_block_h = 4;
|
||||
ctx->texture_block_w = 4;
|
||||
|
||||
avctx->pix_fmt = AV_PIX_FMT_RGBA;
|
||||
avctx->colorspace = AVCOL_SPC_RGB;
|
||||
|
||||
tag = bytestream2_get_le32(gbc);
|
||||
switch (tag) {
|
||||
case MKBETAG('D', 'X', 'T', '1'):
|
||||
@ -378,9 +1070,39 @@ static int dxv_decode(AVCodecContext *avctx, void *data,
|
||||
msgtext = "DXT5";
|
||||
break;
|
||||
case MKBETAG('Y', 'C', 'G', '6'):
|
||||
decompress_tex = dxv_decompress_ycg6;
|
||||
ctx->tex_funct_planar[0] = yo_block;
|
||||
ctx->tex_funct_planar[1] = cocg_block;
|
||||
ctx->tex_rat = 8;
|
||||
ctx->tex_step = 32;
|
||||
ctx->ctex_step = 16;
|
||||
msgcomp = "YOCOCG6";
|
||||
msgtext = "YCG6";
|
||||
ctx->ctex_size = avctx->coded_width * avctx->coded_height / 4;
|
||||
ctx->texture_block_h = 4;
|
||||
ctx->texture_block_w = 16;
|
||||
ctx->ctexture_block_h = 4;
|
||||
ctx->ctexture_block_w = 4;
|
||||
avctx->pix_fmt = AV_PIX_FMT_YUV420P;
|
||||
avctx->colorspace = AVCOL_SPC_YCOCG;
|
||||
break;
|
||||
case MKBETAG('Y', 'G', '1', '0'):
|
||||
avpriv_report_missing_feature(avctx, "Tag 0x%08"PRIX32, tag);
|
||||
return AVERROR_PATCHWELCOME;
|
||||
decompress_tex = dxv_decompress_yg10;
|
||||
ctx->tex_funct_planar[0] = yao_block;
|
||||
ctx->tex_funct_planar[1] = cocg_block;
|
||||
ctx->tex_rat = 4;
|
||||
ctx->tex_step = 64;
|
||||
ctx->ctex_step = 16;
|
||||
msgcomp = "YAOCOCG10";
|
||||
msgtext = "YG10";
|
||||
ctx->ctex_size = avctx->coded_width * avctx->coded_height / 4;
|
||||
ctx->texture_block_h = 4;
|
||||
ctx->texture_block_w = 16;
|
||||
ctx->ctexture_block_h = 4;
|
||||
ctx->ctexture_block_w = 4;
|
||||
avctx->pix_fmt = AV_PIX_FMT_YUVA420P;
|
||||
avctx->colorspace = AVCOL_SPC_YCOCG;
|
||||
break;
|
||||
default:
|
||||
/* Old version does not have a real header, just size and type. */
|
||||
size = tag & 0x00FFFFFF;
|
||||
@ -413,6 +1135,10 @@ static int dxv_decode(AVCodecContext *avctx, void *data,
|
||||
break;
|
||||
}
|
||||
|
||||
ctx->slice_count = av_clip(avctx->thread_count, 1,
|
||||
avctx->coded_height / FFMAX(ctx->texture_block_h,
|
||||
ctx->ctexture_block_h));
|
||||
|
||||
/* New header is 12 bytes long. */
|
||||
if (!old_type) {
|
||||
version_major = bytestream2_get_byte(gbc) - 1;
|
||||
@ -440,10 +1166,28 @@ static int dxv_decode(AVCodecContext *avctx, void *data,
|
||||
}
|
||||
|
||||
ctx->tex_size = avctx->coded_width * avctx->coded_height * 4 / ctx->tex_rat;
|
||||
ret = av_reallocp(&ctx->tex_data, ctx->tex_size);
|
||||
ret = av_reallocp(&ctx->tex_data, ctx->tex_size + AV_INPUT_BUFFER_PADDING_SIZE);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
|
||||
if (ctx->ctex_size) {
|
||||
int i;
|
||||
|
||||
ctx->op_size[0] = avctx->coded_width * avctx->coded_height / 16;
|
||||
ctx->op_size[1] = avctx->coded_width * avctx->coded_height / 32;
|
||||
ctx->op_size[2] = avctx->coded_width * avctx->coded_height / 32;
|
||||
ctx->op_size[3] = avctx->coded_width * avctx->coded_height / 16;
|
||||
|
||||
ret = av_reallocp(&ctx->ctex_data, ctx->ctex_size + AV_INPUT_BUFFER_PADDING_SIZE);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
for (i = 0; i < 4; i++) {
|
||||
ret = av_reallocp(&ctx->op_data[i], ctx->op_size[i]);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
|
||||
/* Decompress texture out of the intermediate compression. */
|
||||
ret = decompress_tex(avctx);
|
||||
if (ret < 0)
|
||||
@ -482,10 +1226,6 @@ static int dxv_init(AVCodecContext *avctx)
|
||||
avctx->coded_height = FFALIGN(avctx->height, 16);
|
||||
|
||||
ff_texturedsp_init(&ctx->texdsp);
|
||||
avctx->pix_fmt = AV_PIX_FMT_RGBA;
|
||||
|
||||
ctx->slice_count = av_clip(avctx->thread_count, 1,
|
||||
avctx->coded_height / TEXTURE_BLOCK_H);
|
||||
|
||||
return 0;
|
||||
}
|
||||
@ -495,6 +1235,11 @@ static int dxv_close(AVCodecContext *avctx)
|
||||
DXVContext *ctx = avctx->priv_data;
|
||||
|
||||
av_freep(&ctx->tex_data);
|
||||
av_freep(&ctx->ctex_data);
|
||||
av_freep(&ctx->op_data[0]);
|
||||
av_freep(&ctx->op_data[1]);
|
||||
av_freep(&ctx->op_data[2]);
|
||||
av_freep(&ctx->op_data[3]);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user