1280 lines
43 KiB
C
Executable File
1280 lines
43 KiB
C
Executable File
/*
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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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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <stdint.h>
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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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#include "lzf.h"
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#include "texturedsp.h"
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#include "thread.h"
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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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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 / 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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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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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 *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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return 0;
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}
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/* This scheme addresses already decoded elements depending on 2-bit status:
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* 0 -> copy new element
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* 1 -> copy one element from position -x
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* 2 -> copy one element from position -(get_byte() + 2) * x
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* 3 -> copy one element from position -(get_16le() + 0x102) * x
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* x is always 2 for dxt1 and 4 for dxt5. */
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#define CHECKPOINT(x) \
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do { \
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if (state == 0) { \
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if (bytestream2_get_bytes_left(gbc) < 4) \
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return AVERROR_INVALIDDATA; \
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value = bytestream2_get_le32(gbc); \
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state = 16; \
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} \
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op = value & 0x3; \
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value >>= 2; \
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state--; \
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switch (op) { \
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case 1: \
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idx = x; \
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break; \
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case 2: \
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idx = (bytestream2_get_byte(gbc) + 2) * x; \
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if (idx > pos) { \
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av_log(avctx, AV_LOG_ERROR, "idx %d > %d\n", idx, pos); \
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return AVERROR_INVALIDDATA; \
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} \
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break; \
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case 3: \
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idx = (bytestream2_get_le16(gbc) + 0x102) * x; \
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if (idx > pos) { \
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av_log(avctx, AV_LOG_ERROR, "idx %d > %d\n", idx, pos); \
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return AVERROR_INVALIDDATA; \
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} \
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break; \
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} \
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} while(0)
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static int dxv_decompress_dxt1(AVCodecContext *avctx)
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{
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DXVContext *ctx = avctx->priv_data;
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GetByteContext *gbc = &ctx->gbc;
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uint32_t value, prev, op;
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int idx = 0, state = 0;
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int pos = 2;
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/* Copy the first two elements */
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AV_WL32(ctx->tex_data, bytestream2_get_le32(gbc));
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AV_WL32(ctx->tex_data + 4, bytestream2_get_le32(gbc));
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/* Process input until the whole texture has been filled */
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while (pos + 2 <= ctx->tex_size / 4) {
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CHECKPOINT(2);
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/* Copy two elements from a previous offset or from the input buffer */
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if (op) {
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prev = AV_RL32(ctx->tex_data + 4 * (pos - idx));
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AV_WL32(ctx->tex_data + 4 * pos, prev);
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pos++;
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prev = AV_RL32(ctx->tex_data + 4 * (pos - idx));
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AV_WL32(ctx->tex_data + 4 * pos, prev);
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pos++;
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} else {
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CHECKPOINT(2);
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if (op)
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prev = AV_RL32(ctx->tex_data + 4 * (pos - idx));
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else
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prev = bytestream2_get_le32(gbc);
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AV_WL32(ctx->tex_data + 4 * pos, prev);
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pos++;
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CHECKPOINT(2);
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if (op)
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prev = AV_RL32(ctx->tex_data + 4 * (pos - idx));
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else
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prev = bytestream2_get_le32(gbc);
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AV_WL32(ctx->tex_data + 4 * pos, prev);
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pos++;
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}
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}
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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, i, idx;
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int64_t size_in_bits;
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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)
|
|
return ret;
|
|
}
|
|
return bytestream2_tell(gb) - pos;
|
|
}
|
|
|
|
static int dxv_decompress_cgo(DXVContext *ctx, GetByteContext *gb,
|
|
uint8_t *tex_data, int tex_size,
|
|
uint8_t *op_data, int *oindex,
|
|
int op_size,
|
|
uint8_t **dstp, int *statep,
|
|
uint8_t **tab0, uint8_t **tab1,
|
|
int offset)
|
|
{
|
|
uint8_t *dst = *dstp;
|
|
uint8_t *tptr0, *tptr1, *tptr3;
|
|
int oi = *oindex;
|
|
int state = *statep;
|
|
int opcode, v, vv;
|
|
|
|
if (state <= 0) {
|
|
if (oi >= op_size)
|
|
return AVERROR_INVALIDDATA;
|
|
opcode = op_data[oi++];
|
|
if (!opcode) {
|
|
v = bytestream2_get_byte(gb);
|
|
if (v == 255) {
|
|
do {
|
|
if (bytestream2_get_bytes_left(gb) <= 0)
|
|
return AVERROR_INVALIDDATA;
|
|
opcode = bytestream2_get_le16(gb);
|
|
v += opcode;
|
|
} while (opcode == 0xFFFF);
|
|
}
|
|
AV_WL32(dst, AV_RL32(dst - (8 + offset)));
|
|
AV_WL32(dst + 4, AV_RL32(dst - (4 + offset)));
|
|
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;
|
|
|
|
if (op_offset < 12 || op_offset - 12 > bytestream2_get_bytes_left(gb))
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
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;
|
|
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 - 12 + op_offset + skip0 + skip1, 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;
|
|
|
|
if (op_offset < 8 || op_offset - 8 > bytestream2_get_bytes_left(gb))
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
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;
|
|
GetByteContext *gbc = &ctx->gbc;
|
|
uint32_t value, op, prev;
|
|
int idx, state = 0;
|
|
int pos = 4;
|
|
int run = 0;
|
|
int probe, check;
|
|
|
|
/* Copy the first four elements */
|
|
AV_WL32(ctx->tex_data + 0, bytestream2_get_le32(gbc));
|
|
AV_WL32(ctx->tex_data + 4, bytestream2_get_le32(gbc));
|
|
AV_WL32(ctx->tex_data + 8, bytestream2_get_le32(gbc));
|
|
AV_WL32(ctx->tex_data + 12, bytestream2_get_le32(gbc));
|
|
|
|
/* Process input until the whole texture has been filled */
|
|
while (pos + 2 <= ctx->tex_size / 4) {
|
|
if (run) {
|
|
run--;
|
|
|
|
prev = AV_RL32(ctx->tex_data + 4 * (pos - 4));
|
|
AV_WL32(ctx->tex_data + 4 * pos, prev);
|
|
pos++;
|
|
prev = AV_RL32(ctx->tex_data + 4 * (pos - 4));
|
|
AV_WL32(ctx->tex_data + 4 * pos, prev);
|
|
pos++;
|
|
} else {
|
|
if (bytestream2_get_bytes_left(gbc) < 1)
|
|
return AVERROR_INVALIDDATA;
|
|
if (state == 0) {
|
|
value = bytestream2_get_le32(gbc);
|
|
state = 16;
|
|
}
|
|
op = value & 0x3;
|
|
value >>= 2;
|
|
state--;
|
|
|
|
switch (op) {
|
|
case 0:
|
|
/* Long copy */
|
|
check = bytestream2_get_byte(gbc) + 1;
|
|
if (check == 256) {
|
|
do {
|
|
probe = bytestream2_get_le16(gbc);
|
|
check += probe;
|
|
} while (probe == 0xFFFF);
|
|
}
|
|
while (check && pos + 4 <= ctx->tex_size / 4) {
|
|
prev = AV_RL32(ctx->tex_data + 4 * (pos - 4));
|
|
AV_WL32(ctx->tex_data + 4 * pos, prev);
|
|
pos++;
|
|
|
|
prev = AV_RL32(ctx->tex_data + 4 * (pos - 4));
|
|
AV_WL32(ctx->tex_data + 4 * pos, prev);
|
|
pos++;
|
|
|
|
prev = AV_RL32(ctx->tex_data + 4 * (pos - 4));
|
|
AV_WL32(ctx->tex_data + 4 * pos, prev);
|
|
pos++;
|
|
|
|
prev = AV_RL32(ctx->tex_data + 4 * (pos - 4));
|
|
AV_WL32(ctx->tex_data + 4 * pos, prev);
|
|
pos++;
|
|
|
|
check--;
|
|
}
|
|
|
|
/* Restart (or exit) the loop */
|
|
continue;
|
|
break;
|
|
case 1:
|
|
/* Load new run value */
|
|
run = bytestream2_get_byte(gbc);
|
|
if (run == 255) {
|
|
do {
|
|
probe = bytestream2_get_le16(gbc);
|
|
run += probe;
|
|
} while (probe == 0xFFFF);
|
|
}
|
|
|
|
/* Copy two dwords from previous data */
|
|
prev = AV_RL32(ctx->tex_data + 4 * (pos - 4));
|
|
AV_WL32(ctx->tex_data + 4 * pos, prev);
|
|
pos++;
|
|
|
|
prev = AV_RL32(ctx->tex_data + 4 * (pos - 4));
|
|
AV_WL32(ctx->tex_data + 4 * pos, prev);
|
|
pos++;
|
|
break;
|
|
case 2:
|
|
/* Copy two dwords from a previous index */
|
|
idx = 8 + bytestream2_get_le16(gbc);
|
|
if (idx > pos || (unsigned int)(pos - idx) + 2 > ctx->tex_size / 4)
|
|
return AVERROR_INVALIDDATA;
|
|
prev = AV_RL32(ctx->tex_data + 4 * (pos - idx));
|
|
AV_WL32(ctx->tex_data + 4 * pos, prev);
|
|
pos++;
|
|
|
|
prev = AV_RL32(ctx->tex_data + 4 * (pos - idx));
|
|
AV_WL32(ctx->tex_data + 4 * pos, prev);
|
|
pos++;
|
|
break;
|
|
case 3:
|
|
/* Copy two dwords from input */
|
|
prev = bytestream2_get_le32(gbc);
|
|
AV_WL32(ctx->tex_data + 4 * pos, prev);
|
|
pos++;
|
|
|
|
prev = bytestream2_get_le32(gbc);
|
|
AV_WL32(ctx->tex_data + 4 * pos, prev);
|
|
pos++;
|
|
break;
|
|
}
|
|
}
|
|
|
|
CHECKPOINT(4);
|
|
if (pos + 2 > ctx->tex_size / 4)
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
/* Copy two elements from a previous offset or from the input buffer */
|
|
if (op) {
|
|
if (idx > pos || (unsigned int)(pos - idx) + 2 > ctx->tex_size / 4)
|
|
return AVERROR_INVALIDDATA;
|
|
prev = AV_RL32(ctx->tex_data + 4 * (pos - idx));
|
|
AV_WL32(ctx->tex_data + 4 * pos, prev);
|
|
pos++;
|
|
|
|
prev = AV_RL32(ctx->tex_data + 4 * (pos - idx));
|
|
AV_WL32(ctx->tex_data + 4 * pos, prev);
|
|
pos++;
|
|
} else {
|
|
CHECKPOINT(4);
|
|
|
|
if (op && (idx > pos || (unsigned int)(pos - idx) + 2 > ctx->tex_size / 4))
|
|
return AVERROR_INVALIDDATA;
|
|
if (op)
|
|
prev = AV_RL32(ctx->tex_data + 4 * (pos - idx));
|
|
else
|
|
prev = bytestream2_get_le32(gbc);
|
|
AV_WL32(ctx->tex_data + 4 * pos, prev);
|
|
pos++;
|
|
|
|
CHECKPOINT(4);
|
|
|
|
if (op)
|
|
prev = AV_RL32(ctx->tex_data + 4 * (pos - idx));
|
|
else
|
|
prev = bytestream2_get_le32(gbc);
|
|
AV_WL32(ctx->tex_data + 4 * pos, prev);
|
|
pos++;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int dxv_decompress_lzf(AVCodecContext *avctx)
|
|
{
|
|
DXVContext *ctx = avctx->priv_data;
|
|
return ff_lzf_uncompress(&ctx->gbc, &ctx->tex_data, &ctx->tex_size);
|
|
}
|
|
|
|
static int dxv_decompress_raw(AVCodecContext *avctx)
|
|
{
|
|
DXVContext *ctx = avctx->priv_data;
|
|
GetByteContext *gbc = &ctx->gbc;
|
|
|
|
if (bytestream2_get_bytes_left(gbc) < ctx->tex_size)
|
|
return AVERROR_INVALIDDATA;
|
|
|
|
bytestream2_get_buffer(gbc, ctx->tex_data, ctx->tex_size);
|
|
return 0;
|
|
}
|
|
|
|
static int dxv_decode(AVCodecContext *avctx, void *data,
|
|
int *got_frame, AVPacket *avpkt)
|
|
{
|
|
DXVContext *ctx = avctx->priv_data;
|
|
ThreadFrame tframe;
|
|
GetByteContext *gbc = &ctx->gbc;
|
|
int (*decompress_tex)(AVCodecContext *avctx);
|
|
const char *msgcomp, *msgtext;
|
|
uint32_t tag;
|
|
int version_major, version_minor = 0;
|
|
int size = 0, old_type = 0;
|
|
int ret;
|
|
|
|
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;
|
|
|
|
ctx->tex_funct = NULL;
|
|
ctx->tex_funct_planar[0] = NULL;
|
|
ctx->tex_funct_planar[1] = NULL;
|
|
|
|
tag = bytestream2_get_le32(gbc);
|
|
switch (tag) {
|
|
case MKBETAG('D', 'X', 'T', '1'):
|
|
decompress_tex = dxv_decompress_dxt1;
|
|
ctx->tex_funct = ctx->texdsp.dxt1_block;
|
|
ctx->tex_rat = 8;
|
|
ctx->tex_step = 8;
|
|
msgcomp = "DXTR1";
|
|
msgtext = "DXT1";
|
|
break;
|
|
case MKBETAG('D', 'X', 'T', '5'):
|
|
decompress_tex = dxv_decompress_dxt5;
|
|
ctx->tex_funct = ctx->texdsp.dxt5_block;
|
|
ctx->tex_rat = 4;
|
|
ctx->tex_step = 16;
|
|
msgcomp = "DXTR5";
|
|
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'):
|
|
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;
|
|
old_type = tag >> 24;
|
|
version_major = (old_type & 0x0F) - 1;
|
|
|
|
if (old_type & 0x80) {
|
|
msgcomp = "RAW";
|
|
decompress_tex = dxv_decompress_raw;
|
|
} else {
|
|
msgcomp = "LZF";
|
|
decompress_tex = dxv_decompress_lzf;
|
|
}
|
|
|
|
if (old_type & 0x40) {
|
|
msgtext = "DXT5";
|
|
|
|
ctx->tex_funct = ctx->texdsp.dxt5_block;
|
|
ctx->tex_step = 16;
|
|
} else if (old_type & 0x20 || version_major == 1) {
|
|
msgtext = "DXT1";
|
|
|
|
ctx->tex_funct = ctx->texdsp.dxt1_block;
|
|
ctx->tex_step = 8;
|
|
} else {
|
|
av_log(avctx, AV_LOG_ERROR, "Unsupported header (0x%08"PRIX32")\n.", tag);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
ctx->tex_rat = 1;
|
|
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;
|
|
version_minor = bytestream2_get_byte(gbc);
|
|
|
|
/* Encoder copies texture data when compression is not advantageous. */
|
|
if (bytestream2_get_byte(gbc)) {
|
|
msgcomp = "RAW";
|
|
ctx->tex_rat = 1;
|
|
decompress_tex = dxv_decompress_raw;
|
|
}
|
|
|
|
bytestream2_skip(gbc, 1); // unknown
|
|
size = bytestream2_get_le32(gbc);
|
|
}
|
|
av_log(avctx, AV_LOG_DEBUG,
|
|
"%s compression with %s texture (version %d.%d)\n",
|
|
msgcomp, msgtext, version_major, version_minor);
|
|
|
|
if (size != bytestream2_get_bytes_left(gbc)) {
|
|
av_log(avctx, AV_LOG_ERROR,
|
|
"Incomplete or invalid file (header %d, left %u).\n",
|
|
size, bytestream2_get_bytes_left(gbc));
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
ctx->tex_size = avctx->coded_width * avctx->coded_height * 4 / ctx->tex_rat;
|
|
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)
|
|
return ret;
|
|
{
|
|
int w_block = avctx->coded_width / ctx->texture_block_w;
|
|
int h_block = avctx->coded_height / ctx->texture_block_h;
|
|
if (w_block * h_block * ctx->tex_step > ctx->tex_size * 8LL)
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
tframe.f = data;
|
|
ret = ff_thread_get_buffer(avctx, &tframe, 0);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
/* Now decompress the texture with the standard functions. */
|
|
avctx->execute2(avctx, decompress_texture_thread,
|
|
tframe.f, NULL, ctx->slice_count);
|
|
|
|
/* Frame is ready to be output. */
|
|
tframe.f->pict_type = AV_PICTURE_TYPE_I;
|
|
tframe.f->key_frame = 1;
|
|
*got_frame = 1;
|
|
|
|
return avpkt->size;
|
|
}
|
|
|
|
static int dxv_init(AVCodecContext *avctx)
|
|
{
|
|
DXVContext *ctx = avctx->priv_data;
|
|
int ret = av_image_check_size(avctx->width, avctx->height, 0, avctx);
|
|
|
|
if (ret < 0) {
|
|
av_log(avctx, AV_LOG_ERROR, "Invalid image size %dx%d.\n",
|
|
avctx->width, avctx->height);
|
|
return ret;
|
|
}
|
|
|
|
/* Codec requires 16x16 alignment. */
|
|
avctx->coded_width = FFALIGN(avctx->width, 16);
|
|
avctx->coded_height = FFALIGN(avctx->height, 16);
|
|
|
|
ff_texturedsp_init(&ctx->texdsp);
|
|
|
|
return 0;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
AVCodec ff_dxv_decoder = {
|
|
.name = "dxv",
|
|
.long_name = NULL_IF_CONFIG_SMALL("Resolume DXV"),
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.id = AV_CODEC_ID_DXV,
|
|
.init = dxv_init,
|
|
.decode = dxv_decode,
|
|
.close = dxv_close,
|
|
.priv_data_size = sizeof(DXVContext),
|
|
.capabilities = AV_CODEC_CAP_DR1 |
|
|
AV_CODEC_CAP_SLICE_THREADS |
|
|
AV_CODEC_CAP_FRAME_THREADS,
|
|
.caps_internal = FF_CODEC_CAP_INIT_THREADSAFE |
|
|
FF_CODEC_CAP_INIT_CLEANUP,
|
|
};
|