Use avpriv_report_missing_feature() where appropriate
[libav.git] / libavcodec / txd.c
1 /*
2 * Renderware TeXture Dictionary (.txd) image decoder
3 * Copyright (c) 2007 Ivo van Poorten
4 *
5 * See also: http://wiki.multimedia.cx/index.php?title=TXD
6 *
7 * This file is part of Libav.
8 *
9 * Libav is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
13 *
14 * Libav is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with Libav; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 */
23
24 #include "libavutil/intreadwrite.h"
25 #include "libavutil/imgutils.h"
26 #include "avcodec.h"
27 #include "bytestream.h"
28 #include "internal.h"
29 #include "texturedsp.h"
30
31 #define TXD_DXT1 0x31545844
32 #define TXD_DXT3 0x33545844
33
34 static int txd_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
35 AVPacket *avpkt) {
36 GetByteContext gb;
37 TextureDSPContext dxtc;
38 AVFrame * const p = data;
39 unsigned int version, w, h, d3d_format, depth, stride, flags;
40 unsigned int y, v;
41 uint8_t *ptr;
42 uint32_t *pal;
43 int i, j;
44 int ret;
45
46 ff_texturedsp_init(&dxtc);
47
48 bytestream2_init(&gb, avpkt->data, avpkt->size);
49 version = bytestream2_get_le32(&gb);
50 bytestream2_skip(&gb, 72);
51 d3d_format = bytestream2_get_le32(&gb);
52 w = bytestream2_get_le16(&gb);
53 h = bytestream2_get_le16(&gb);
54 depth = bytestream2_get_byte(&gb);
55 bytestream2_skip(&gb, 2);
56 flags = bytestream2_get_byte(&gb);
57
58 if (version < 8 || version > 9) {
59 avpriv_report_missing_feature(avctx, "Texture data version %u", version);
60 return AVERROR_PATCHWELCOME;
61 }
62
63 if (depth == 8) {
64 avctx->pix_fmt = AV_PIX_FMT_PAL8;
65 } else if (depth == 16 || depth == 32) {
66 avctx->pix_fmt = AV_PIX_FMT_RGBA;
67 } else {
68 avpriv_report_missing_feature(avctx, "Color depth of %u", depth);
69 return AVERROR_PATCHWELCOME;
70 }
71
72 if ((ret = ff_set_dimensions(avctx, w, h)) < 0)
73 return ret;
74
75 avctx->coded_width = FFALIGN(w, 4);
76 avctx->coded_height = FFALIGN(h, 4);
77
78 if ((ret = ff_get_buffer(avctx, p, 0)) < 0) {
79 av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
80 return ret;
81 }
82
83 p->pict_type = AV_PICTURE_TYPE_I;
84
85 ptr = p->data[0];
86 stride = p->linesize[0];
87
88 if (depth == 8) {
89 pal = (uint32_t *) p->data[1];
90 for (y = 0; y < 256; y++) {
91 v = bytestream2_get_be32(&gb);
92 pal[y] = (v >> 8) + (v << 24);
93 }
94 bytestream2_skip(&gb, 4);
95 for (y=0; y<h; y++) {
96 bytestream2_get_buffer(&gb, ptr, w);
97 ptr += stride;
98 }
99 } else if (depth == 16) {
100 bytestream2_skip(&gb, 4);
101 switch (d3d_format) {
102 case 0:
103 if (!(flags & 1))
104 goto unsupported;
105 case TXD_DXT1:
106 for (j = 0; j < avctx->height; j += 4) {
107 for (i = 0; i < avctx->width; i += 4) {
108 uint8_t *p = ptr + i * 4 + j * stride;
109 int step = dxtc.dxt1_block(p, stride, gb.buffer);
110 bytestream2_skip(&gb, step);
111 }
112 }
113 break;
114 case TXD_DXT3:
115 for (j = 0; j < avctx->height; j += 4) {
116 for (i = 0; i < avctx->width; i += 4) {
117 uint8_t *p = ptr + i * 4 + j * stride;
118 int step = dxtc.dxt3_block(p, stride, gb.buffer);
119 bytestream2_skip(&gb, step);
120 }
121 }
122 break;
123 default:
124 goto unsupported;
125 }
126 } else if (depth == 32) {
127 switch (d3d_format) {
128 case 0x15:
129 case 0x16:
130 for (y=0; y<h; y++) {
131 bytestream2_get_buffer(&gb, ptr, w * 4);
132 ptr += stride;
133 }
134 break;
135 default:
136 goto unsupported;
137 }
138 }
139
140 *got_frame = 1;
141
142 return avpkt->size;
143
144 unsupported:
145 avpriv_report_missing_feature(avctx, "d3d format (%08x)", d3d_format);
146 return AVERROR_PATCHWELCOME;
147 }
148
149 AVCodec ff_txd_decoder = {
150 .name = "txd",
151 .long_name = NULL_IF_CONFIG_SMALL("Renderware TXD (TeXture Dictionary) image"),
152 .type = AVMEDIA_TYPE_VIDEO,
153 .id = AV_CODEC_ID_TXD,
154 .decode = txd_decode_frame,
155 .capabilities = AV_CODEC_CAP_DR1,
156 };