* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include <inttypes.h>
+
#define BITSTREAM_READER_LE
#include "avcodec.h"
#include "bytestream.h"
}
const uint8_t def_lru[8] = { 0x00, 0x20, 0x40, 0x60, 0x80, 0xA0, 0xC0, 0xFF };
+const uint8_t def_lru_555[8] = { 0x00, 0x08, 0x10, 0x18, 0x1F };
+const uint8_t def_lru_565[8] = { 0x00, 0x08, 0x10, 0x20, 0x30, 0x3F };
static inline uint8_t decode_sym(GetBitContext *gb, uint8_t lru[8])
{
return val;
}
+static inline uint8_t decode_sym_565(GetBitContext *gb, uint8_t lru[8],
+ int bits)
+{
+ uint8_t c, val;
+
+ c = get_unary(gb, 0, bits);
+ if (!c) {
+ val = get_bits(gb, bits);
+ memmove(lru + 1, lru, sizeof(*lru) * (6 - 1));
+ } else {
+ val = lru[c - 1];
+ memmove(lru + 1, lru, sizeof(*lru) * (c - 1));
+ }
+ lru[0] = val;
+
+ return val;
+}
+
+static int dx2_decode_slice_565(GetBitContext *gb, int width, int height,
+ uint8_t *dst, int stride, int is_565)
+{
+ int x, y;
+ int r, g, b;
+ uint8_t lru[3][8];
+
+ memcpy(lru[0], def_lru_555, 8 * sizeof(*def_lru));
+ memcpy(lru[1], is_565 ? def_lru_565 : def_lru_555, 8 * sizeof(*def_lru));
+ memcpy(lru[2], def_lru_555, 8 * sizeof(*def_lru));
+
+ for (y = 0; y < height; y++) {
+ for (x = 0; x < width; x++) {
+ b = decode_sym_565(gb, lru[0], 5);
+ g = decode_sym_565(gb, lru[1], is_565 ? 6 : 5);
+ r = decode_sym_565(gb, lru[2], 5);
+ dst[x * 3 + 0] = (r << 3) | (r >> 2);
+ dst[x * 3 + 1] = is_565 ? (g << 2) | (g >> 4) : (g << 3) | (g >> 2);
+ dst[x * 3 + 2] = (b << 3) | (b >> 2);
+ }
+
+ dst += stride;
+ }
+
+ return 0;
+}
+
+static int dxtory_decode_v2_565(AVCodecContext *avctx, AVFrame *pic,
+ const uint8_t *src, int src_size, int is_565)
+{
+ GetByteContext gb;
+ GetBitContext gb2;
+ int nslices, slice, slice_height;
+ uint32_t off, slice_size;
+ uint8_t *dst;
+ int ret;
+
+ bytestream2_init(&gb, src, src_size);
+ nslices = bytestream2_get_le16(&gb);
+ off = FFALIGN(nslices * 4 + 2, 16);
+ if (src_size < off) {
+ av_log(avctx, AV_LOG_ERROR, "no slice data\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ if (!nslices || avctx->height % nslices) {
+ avpriv_request_sample(avctx, "%d slices for %dx%d", nslices,
+ avctx->width, avctx->height);
+ return AVERROR_PATCHWELCOME;
+ }
+
+ slice_height = avctx->height / nslices;
+ avctx->pix_fmt = AV_PIX_FMT_RGB24;
+ if ((ret = ff_get_buffer(avctx, pic, 0)) < 0)
+ return ret;
+
+ dst = pic->data[0];
+ for (slice = 0; slice < nslices; slice++) {
+ slice_size = bytestream2_get_le32(&gb);
+ if (slice_size > src_size - off) {
+ av_log(avctx, AV_LOG_ERROR,
+ "invalid slice size %"PRIu32" (only %"PRIu32" bytes left)\n",
+ slice_size, src_size - off);
+ return AVERROR_INVALIDDATA;
+ }
+ if (slice_size <= 16) {
+ av_log(avctx, AV_LOG_ERROR, "invalid slice size %"PRIu32"\n", slice_size);
+ return AVERROR_INVALIDDATA;
+ }
+
+ if (AV_RL32(src + off) != slice_size - 16) {
+ av_log(avctx, AV_LOG_ERROR,
+ "Slice sizes mismatch: got %"PRIu32" instead of %"PRIu32"\n",
+ AV_RL32(src + off), slice_size - 16);
+ }
+ init_get_bits(&gb2, src + off + 16, (slice_size - 16) * 8);
+ dx2_decode_slice_565(&gb2, avctx->width, slice_height, dst,
+ pic->linesize[0], is_565);
+
+ dst += pic->linesize[0] * slice_height;
+ off += slice_size;
+ }
+
+ return 0;
+}
+
static int dx2_decode_slice_rgb(GetBitContext *gb, int width, int height,
uint8_t *dst, int stride)
{
slice_size = bytestream2_get_le32(&gb);
if (slice_size > src_size - off) {
av_log(avctx, AV_LOG_ERROR,
- "invalid slice size %d (only %d bytes left)\n",
+ "invalid slice size %"PRIu32" (only %"PRIu32" bytes left)\n",
slice_size, src_size - off);
return AVERROR_INVALIDDATA;
}
if (slice_size <= 16) {
- av_log(avctx, AV_LOG_ERROR, "invalid slice size %d\n", slice_size);
+ av_log(avctx, AV_LOG_ERROR, "invalid slice size %"PRIu32"\n",
+ slice_size);
return AVERROR_INVALIDDATA;
}
if (AV_RL32(src + off) != slice_size - 16) {
av_log(avctx, AV_LOG_ERROR,
- "Slice sizes mismatch: got %d instead of %d\n",
+ "Slice sizes mismatch: got %"PRIu32" instead of %"PRIu32"\n",
AV_RL32(src + off), slice_size - 16);
}
init_get_bits(&gb2, src + off + 16, (slice_size - 16) * 8);
slice_height = (next_y & ~3) - (cur_y & ~3);
if (slice_size > src_size - off) {
av_log(avctx, AV_LOG_ERROR,
- "invalid slice size %d (only %d bytes left)\n",
+ "invalid slice size %"PRIu32" (only %"PRIu32" bytes left)\n",
slice_size, src_size - off);
return AVERROR_INVALIDDATA;
}
if (slice_size <= 16) {
- av_log(avctx, AV_LOG_ERROR, "invalid slice size %d\n", slice_size);
+ av_log(avctx, AV_LOG_ERROR, "invalid slice size %"PRIu32"\n", slice_size);
return AVERROR_INVALIDDATA;
}
if (AV_RL32(src + off) != slice_size - 16) {
av_log(avctx, AV_LOG_ERROR,
- "Slice sizes mismatch: got %d instead of %d\n",
+ "Slice sizes mismatch: got %"PRIu32" instead of %"PRIu32"\n",
AV_RL32(src + off), slice_size - 16);
}
init_get_bits(&gb2, src + off + 16, (slice_size - 16) * 8);
slice_height = (next_y & ~1) - (cur_y & ~1);
if (slice_size > src_size - off) {
av_log(avctx, AV_LOG_ERROR,
- "invalid slice size %d (only %d bytes left)\n",
+ "invalid slice size %"PRIu32" (only %"PRIu32" bytes left)\n",
slice_size, src_size - off);
return AVERROR_INVALIDDATA;
}
if (slice_size <= 16) {
- av_log(avctx, AV_LOG_ERROR, "invalid slice size %d\n", slice_size);
+ av_log(avctx, AV_LOG_ERROR, "invalid slice size %"PRIu32"\n", slice_size);
return AVERROR_INVALIDDATA;
}
if (AV_RL32(src + off) != slice_size - 16) {
av_log(avctx, AV_LOG_ERROR,
- "Slice sizes mismatch: got %d instead of %d\n",
+ "Slice sizes mismatch: got %"PRIu32" instead of %"PRIu32"\n",
AV_RL32(src + off), slice_size - 16);
}
init_get_bits(&gb2, src + off + 16, (slice_size - 16) * 8);
slice_size = bytestream2_get_le32(&gb);
if (slice_size > src_size - off) {
av_log(avctx, AV_LOG_ERROR,
- "invalid slice size %d (only %d bytes left)\n",
+ "invalid slice size %"PRIu32" (only %"PRIu32" bytes left)\n",
slice_size, src_size - off);
return AVERROR_INVALIDDATA;
}
if (slice_size <= 16) {
- av_log(avctx, AV_LOG_ERROR, "invalid slice size %d\n", slice_size);
+ av_log(avctx, AV_LOG_ERROR, "invalid slice size %"PRIu32"\n", slice_size);
return AVERROR_INVALIDDATA;
}
if (AV_RL32(src + off) != slice_size - 16) {
av_log(avctx, AV_LOG_ERROR,
- "Slice sizes mismatch: got %d instead of %d\n",
+ "Slice sizes mismatch: got %"PRIu32" instead of %"PRIu32"\n",
AV_RL32(src + off), slice_size - 16);
}
init_get_bits(&gb2, src + off + 16, (slice_size - 16) * 8);
ret = dxtory_decode_v1_rgb(avctx, pic, src + 16, avpkt->size - 16,
AV_PIX_FMT_RGB565LE, 2);
break;
+ case 0x17000009:
+ ret = dxtory_decode_v2_565(avctx, pic, src + 16, avpkt->size - 16, 1);
+ break;
case 0x18000001:
case 0x19000001:
ret = dxtory_decode_v1_rgb(avctx, pic, src + 16, avpkt->size - 16,
AV_PIX_FMT_RGB555LE, 2);
break;
+ case 0x18000009:
+ case 0x19000009:
+ ret = dxtory_decode_v2_565(avctx, pic, src + 16, avpkt->size - 16, 0);
+ break;
default:
- avpriv_request_sample(avctx, "Frame header %X", AV_RB32(src));
+ avpriv_request_sample(avctx, "Frame header %"PRIX32, AV_RB32(src));
return AVERROR_PATCHWELCOME;
}
projects / ffmpeg / blobdiff