Reorder code
This commit is contained in:
parent
78faf438a5
commit
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GPG Key ID:
A0420B94F92B9493
483
fiv-io.c
483
fiv-io.c
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@ -1217,6 +1217,248 @@ open_libjpeg_enhanced(
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#define open_libjpeg_enhanced open_libjpeg_turbo
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#endif
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// --- WebP --------------------------------------------------------------------
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static const char *
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load_libwebp_error(VP8StatusCode err)
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{
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switch (err) {
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case VP8_STATUS_OUT_OF_MEMORY:
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return "out of memory";
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case VP8_STATUS_INVALID_PARAM:
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return "invalid parameter";
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case VP8_STATUS_BITSTREAM_ERROR:
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return "bitstream error";
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case VP8_STATUS_UNSUPPORTED_FEATURE:
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return "unsupported feature";
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case VP8_STATUS_SUSPENDED:
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return "suspended";
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case VP8_STATUS_USER_ABORT:
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return "user abort";
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case VP8_STATUS_NOT_ENOUGH_DATA:
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return "not enough data";
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default:
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return "general failure";
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}
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}
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static cairo_surface_t *
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load_libwebp_nonanimated(WebPDecoderConfig *config, const WebPData *wd,
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bool premultiply, GError **error)
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{
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cairo_surface_t *surface = cairo_image_surface_create(
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config->input.has_alpha ? CAIRO_FORMAT_ARGB32 : CAIRO_FORMAT_RGB24,
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config->input.width, config->input.height);
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cairo_status_t surface_status = cairo_surface_status(surface);
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if (surface_status != CAIRO_STATUS_SUCCESS) {
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set_error(error, cairo_status_to_string(surface_status));
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cairo_surface_destroy(surface);
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return NULL;
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}
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config->options.use_threads = true;
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config->output.width = config->input.width;
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config->output.height = config->input.height;
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config->output.is_external_memory = true;
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config->output.u.RGBA.rgba = cairo_image_surface_get_data(surface);
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config->output.u.RGBA.stride = cairo_image_surface_get_stride(surface);
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config->output.u.RGBA.size =
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config->output.u.RGBA.stride * cairo_image_surface_get_height(surface);
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if (G_BYTE_ORDER == G_LITTLE_ENDIAN)
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config->output.colorspace = premultiply ? MODE_bgrA : MODE_BGRA;
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else
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config->output.colorspace = premultiply ? MODE_Argb : MODE_ARGB;
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VP8StatusCode err = 0;
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if ((err = WebPDecode(wd->bytes, wd->size, config))) {
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g_set_error(error, FIV_IO_ERROR, FIV_IO_ERROR_OPEN,
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"%s: %s", "WebP decoding error", load_libwebp_error(err));
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cairo_surface_destroy(surface);
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return NULL;
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}
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cairo_surface_mark_dirty(surface);
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return surface;
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}
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static cairo_surface_t *
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load_libwebp_frame(WebPAnimDecoder *dec, const WebPAnimInfo *info,
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int *last_timestamp, GError **error)
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{
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uint8_t *buf = NULL;
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int timestamp = 0;
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if (!WebPAnimDecoderGetNext(dec, &buf, ×tamp)) {
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set_error(error, "WebP decoding error");
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return NULL;
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}
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bool is_opaque = (info->bgcolor & 0xFF) == 0xFF;
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uint64_t area = info->canvas_width * info->canvas_height;
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cairo_surface_t *surface = cairo_image_surface_create(
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is_opaque ? CAIRO_FORMAT_RGB24 : CAIRO_FORMAT_ARGB32,
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info->canvas_width, info->canvas_height);
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cairo_status_t surface_status = cairo_surface_status(surface);
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if (surface_status != CAIRO_STATUS_SUCCESS) {
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set_error(error, cairo_status_to_string(surface_status));
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cairo_surface_destroy(surface);
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return NULL;
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}
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uint32_t *dst = (uint32_t *) cairo_image_surface_get_data(surface);
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if (G_BYTE_ORDER == G_LITTLE_ENDIAN) {
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memcpy(dst, buf, area * sizeof *dst);
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} else {
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uint32_t *src = (uint32_t *) buf;
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for (uint64_t i = 0; i < area; i++)
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*dst++ = GUINT32_FROM_LE(*src++);
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}
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cairo_surface_mark_dirty(surface);
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// This API is confusing and awkward.
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cairo_surface_set_user_data(surface, &fiv_io_key_frame_duration,
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(void *) (intptr_t) (timestamp - *last_timestamp), NULL);
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*last_timestamp = timestamp;
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return surface;
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}
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static cairo_surface_t *
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load_libwebp_animated(const WebPData *wd, bool premultiply, GError **error)
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{
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WebPAnimDecoderOptions options = {};
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WebPAnimDecoderOptionsInit(&options);
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options.use_threads = true;
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options.color_mode = premultiply ? MODE_bgrA : MODE_BGRA;
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WebPAnimInfo info = {};
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WebPAnimDecoder *dec = WebPAnimDecoderNew(wd, &options);
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WebPAnimDecoderGetInfo(dec, &info);
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cairo_surface_t *frames = NULL, *frames_tail = NULL;
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if (info.canvas_width > INT_MAX || info.canvas_height > INT_MAX) {
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set_error(error, "image dimensions overflow");
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goto fail;
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}
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int last_timestamp = 0;
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while (WebPAnimDecoderHasMoreFrames(dec)) {
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cairo_surface_t *surface =
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load_libwebp_frame(dec, &info, &last_timestamp, error);
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if (!surface) {
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g_clear_pointer(&frames, cairo_surface_destroy);
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goto fail;
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}
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if (frames_tail)
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cairo_surface_set_user_data(frames_tail, &fiv_io_key_frame_next,
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surface, (cairo_destroy_func_t) cairo_surface_destroy);
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else
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frames = surface;
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cairo_surface_set_user_data(
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surface, &fiv_io_key_frame_previous, frames_tail, NULL);
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frames_tail = surface;
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}
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if (frames) {
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cairo_surface_set_user_data(
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frames, &fiv_io_key_frame_previous, frames_tail, NULL);
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} else {
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set_error(error, "the animation has no frames");
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g_clear_pointer(&frames, cairo_surface_destroy);
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}
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fail:
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WebPAnimDecoderDelete(dec);
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return frames;
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}
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static cairo_surface_t *
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open_libwebp(const gchar *data, gsize len, const gchar *uri,
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FivIoProfile target, GError **error)
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{
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// It is wholly zero-initialized by libwebp.
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WebPDecoderConfig config = {};
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if (!WebPInitDecoderConfig(&config)) {
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set_error(error, "libwebp version mismatch");
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return NULL;
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}
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// TODO(p): Differentiate between a bad WebP, and not a WebP.
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// TODO(p): Make sure partial WebPs load with a non-fatal error.
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VP8StatusCode err = 0;
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WebPData wd = {.bytes = (const uint8_t *) data, .size = len};
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if ((err = WebPGetFeatures(wd.bytes, wd.size, &config.input))) {
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g_set_error(error, FIV_IO_ERROR, FIV_IO_ERROR_OPEN,
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"%s: %s", "WebP decoding error", load_libwebp_error(err));
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return NULL;
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}
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cairo_surface_t *result = config.input.has_animation
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? load_libwebp_animated(&wd, !target, error)
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: load_libwebp_nonanimated(&config, &wd, !target, error);
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if (!result)
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goto fail;
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// Of course everything has to use a different abstraction.
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WebPDemuxState state = WEBP_DEMUX_PARSE_ERROR;
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WebPDemuxer *demux = WebPDemuxPartial(&wd, &state);
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if (!demux) {
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g_warning("%s: %s", uri, "demux failure");
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goto fail;
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}
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// Releasing the demux chunk iterator is actually a no-op.
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// TODO(p): Avoid copy-pasting the chunk transfer code.
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WebPChunkIterator chunk_iter = {};
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uint32_t flags = WebPDemuxGetI(demux, WEBP_FF_FORMAT_FLAGS);
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if ((flags & EXIF_FLAG) &&
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WebPDemuxGetChunk(demux, "EXIF", 1, &chunk_iter)) {
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cairo_surface_set_user_data(result, &fiv_io_key_exif,
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g_bytes_new(chunk_iter.chunk.bytes, chunk_iter.chunk.size),
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(cairo_destroy_func_t) g_bytes_unref);
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WebPDemuxReleaseChunkIterator(&chunk_iter);
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}
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if ((flags & ICCP_FLAG) &&
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WebPDemuxGetChunk(demux, "ICCP", 1, &chunk_iter)) {
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cairo_surface_set_user_data(result, &fiv_io_key_icc,
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g_bytes_new(chunk_iter.chunk.bytes, chunk_iter.chunk.size),
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(cairo_destroy_func_t) g_bytes_unref);
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WebPDemuxReleaseChunkIterator(&chunk_iter);
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}
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if ((flags & XMP_FLAG) &&
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WebPDemuxGetChunk(demux, "XMP ", 1, &chunk_iter)) {
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cairo_surface_set_user_data(result, &fiv_io_key_xmp,
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g_bytes_new(chunk_iter.chunk.bytes, chunk_iter.chunk.size),
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(cairo_destroy_func_t) g_bytes_unref);
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WebPDemuxReleaseChunkIterator(&chunk_iter);
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}
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if (WebPDemuxGetChunk(demux, "THUM", 1, &chunk_iter)) {
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cairo_surface_set_user_data(result, &fiv_io_key_thum,
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g_bytes_new(chunk_iter.chunk.bytes, chunk_iter.chunk.size),
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(cairo_destroy_func_t) g_bytes_unref);
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WebPDemuxReleaseChunkIterator(&chunk_iter);
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}
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if (flags & ANIMATION_FLAG) {
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cairo_surface_set_user_data(result, &fiv_io_key_loops,
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(void *) (uintptr_t) WebPDemuxGetI(demux, WEBP_FF_LOOP_COUNT),
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NULL);
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}
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WebPDemuxDelete(demux);
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if (target) {
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fiv_io_profile_xrgb32_page(result, target);
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fiv_io_premultiply_argb32_page(result);
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}
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fail:
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WebPFreeDecBuffer(&config.output);
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return result;
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}
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// --- Optional dependencies ---------------------------------------------------
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#ifdef HAVE_LIBRAW // ---------------------------------------------------------
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@ -1643,247 +1885,6 @@ open_xcursor(const gchar *data, gsize len, GError **error)
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}
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#endif // HAVE_XCURSOR --------------------------------------------------------
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static const char *
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load_libwebp_error(VP8StatusCode err)
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{
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switch (err) {
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case VP8_STATUS_OUT_OF_MEMORY:
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return "out of memory";
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case VP8_STATUS_INVALID_PARAM:
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return "invalid parameter";
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case VP8_STATUS_BITSTREAM_ERROR:
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return "bitstream error";
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case VP8_STATUS_UNSUPPORTED_FEATURE:
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return "unsupported feature";
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case VP8_STATUS_SUSPENDED:
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return "suspended";
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case VP8_STATUS_USER_ABORT:
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return "user abort";
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case VP8_STATUS_NOT_ENOUGH_DATA:
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return "not enough data";
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default:
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return "general failure";
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}
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}
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static cairo_surface_t *
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load_libwebp_nonanimated(WebPDecoderConfig *config, const WebPData *wd,
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bool premultiply, GError **error)
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{
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cairo_surface_t *surface = cairo_image_surface_create(
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config->input.has_alpha ? CAIRO_FORMAT_ARGB32 : CAIRO_FORMAT_RGB24,
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config->input.width, config->input.height);
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cairo_status_t surface_status = cairo_surface_status(surface);
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if (surface_status != CAIRO_STATUS_SUCCESS) {
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set_error(error, cairo_status_to_string(surface_status));
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cairo_surface_destroy(surface);
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return NULL;
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}
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config->options.use_threads = true;
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config->output.width = config->input.width;
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config->output.height = config->input.height;
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config->output.is_external_memory = true;
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config->output.u.RGBA.rgba = cairo_image_surface_get_data(surface);
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config->output.u.RGBA.stride = cairo_image_surface_get_stride(surface);
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config->output.u.RGBA.size =
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config->output.u.RGBA.stride * cairo_image_surface_get_height(surface);
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if (G_BYTE_ORDER == G_LITTLE_ENDIAN)
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config->output.colorspace = premultiply ? MODE_bgrA : MODE_BGRA;
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else
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config->output.colorspace = premultiply ? MODE_Argb : MODE_ARGB;
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VP8StatusCode err = 0;
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if ((err = WebPDecode(wd->bytes, wd->size, config))) {
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g_set_error(error, FIV_IO_ERROR, FIV_IO_ERROR_OPEN,
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"%s: %s", "WebP decoding error", load_libwebp_error(err));
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cairo_surface_destroy(surface);
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return NULL;
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}
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cairo_surface_mark_dirty(surface);
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return surface;
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}
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static cairo_surface_t *
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load_libwebp_frame(WebPAnimDecoder *dec, const WebPAnimInfo *info,
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int *last_timestamp, GError **error)
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{
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uint8_t *buf = NULL;
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int timestamp = 0;
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if (!WebPAnimDecoderGetNext(dec, &buf, ×tamp)) {
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set_error(error, "WebP decoding error");
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return NULL;
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}
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bool is_opaque = (info->bgcolor & 0xFF) == 0xFF;
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uint64_t area = info->canvas_width * info->canvas_height;
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cairo_surface_t *surface = cairo_image_surface_create(
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is_opaque ? CAIRO_FORMAT_RGB24 : CAIRO_FORMAT_ARGB32,
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info->canvas_width, info->canvas_height);
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cairo_status_t surface_status = cairo_surface_status(surface);
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if (surface_status != CAIRO_STATUS_SUCCESS) {
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set_error(error, cairo_status_to_string(surface_status));
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cairo_surface_destroy(surface);
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return NULL;
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}
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uint32_t *dst = (uint32_t *) cairo_image_surface_get_data(surface);
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if (G_BYTE_ORDER == G_LITTLE_ENDIAN) {
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memcpy(dst, buf, area * sizeof *dst);
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} else {
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uint32_t *src = (uint32_t *) buf;
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for (uint64_t i = 0; i < area; i++)
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*dst++ = GUINT32_FROM_LE(*src++);
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}
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cairo_surface_mark_dirty(surface);
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// This API is confusing and awkward.
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cairo_surface_set_user_data(surface, &fiv_io_key_frame_duration,
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(void *) (intptr_t) (timestamp - *last_timestamp), NULL);
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*last_timestamp = timestamp;
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return surface;
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}
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static cairo_surface_t *
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load_libwebp_animated(const WebPData *wd, bool premultiply, GError **error)
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{
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WebPAnimDecoderOptions options = {};
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WebPAnimDecoderOptionsInit(&options);
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options.use_threads = true;
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options.color_mode = premultiply ? MODE_bgrA : MODE_BGRA;
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WebPAnimInfo info = {};
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WebPAnimDecoder *dec = WebPAnimDecoderNew(wd, &options);
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WebPAnimDecoderGetInfo(dec, &info);
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cairo_surface_t *frames = NULL, *frames_tail = NULL;
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if (info.canvas_width > INT_MAX || info.canvas_height > INT_MAX) {
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set_error(error, "image dimensions overflow");
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goto fail;
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}
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int last_timestamp = 0;
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while (WebPAnimDecoderHasMoreFrames(dec)) {
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cairo_surface_t *surface =
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load_libwebp_frame(dec, &info, &last_timestamp, error);
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if (!surface) {
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g_clear_pointer(&frames, cairo_surface_destroy);
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goto fail;
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}
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if (frames_tail)
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cairo_surface_set_user_data(frames_tail, &fiv_io_key_frame_next,
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surface, (cairo_destroy_func_t) cairo_surface_destroy);
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else
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frames = surface;
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cairo_surface_set_user_data(
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surface, &fiv_io_key_frame_previous, frames_tail, NULL);
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frames_tail = surface;
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}
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if (frames) {
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cairo_surface_set_user_data(
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frames, &fiv_io_key_frame_previous, frames_tail, NULL);
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} else {
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set_error(error, "the animation has no frames");
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g_clear_pointer(&frames, cairo_surface_destroy);
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}
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fail:
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WebPAnimDecoderDelete(dec);
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return frames;
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}
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static cairo_surface_t *
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open_libwebp(const gchar *data, gsize len, const gchar *uri,
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FivIoProfile target, GError **error)
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{
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// It is wholly zero-initialized by libwebp.
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WebPDecoderConfig config = {};
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if (!WebPInitDecoderConfig(&config)) {
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set_error(error, "libwebp version mismatch");
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return NULL;
|
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}
|
||||
|
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// TODO(p): Differentiate between a bad WebP, and not a WebP.
|
||||
// TODO(p): Make sure partial WebPs load with a non-fatal error.
|
||||
VP8StatusCode err = 0;
|
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WebPData wd = {.bytes = (const uint8_t *) data, .size = len};
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if ((err = WebPGetFeatures(wd.bytes, wd.size, &config.input))) {
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g_set_error(error, FIV_IO_ERROR, FIV_IO_ERROR_OPEN,
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"%s: %s", "WebP decoding error", load_libwebp_error(err));
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return NULL;
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}
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cairo_surface_t *result = config.input.has_animation
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? load_libwebp_animated(&wd, !target, error)
|
||||
: load_libwebp_nonanimated(&config, &wd, !target, error);
|
||||
if (!result)
|
||||
goto fail;
|
||||
|
||||
// Of course everything has to use a different abstraction.
|
||||
WebPDemuxState state = WEBP_DEMUX_PARSE_ERROR;
|
||||
WebPDemuxer *demux = WebPDemuxPartial(&wd, &state);
|
||||
if (!demux) {
|
||||
g_warning("%s: %s", uri, "demux failure");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
// Releasing the demux chunk iterator is actually a no-op.
|
||||
// TODO(p): Avoid copy-pasting the chunk transfer code.
|
||||
WebPChunkIterator chunk_iter = {};
|
||||
uint32_t flags = WebPDemuxGetI(demux, WEBP_FF_FORMAT_FLAGS);
|
||||
if ((flags & EXIF_FLAG) &&
|
||||
WebPDemuxGetChunk(demux, "EXIF", 1, &chunk_iter)) {
|
||||
cairo_surface_set_user_data(result, &fiv_io_key_exif,
|
||||
g_bytes_new(chunk_iter.chunk.bytes, chunk_iter.chunk.size),
|
||||
(cairo_destroy_func_t) g_bytes_unref);
|
||||
WebPDemuxReleaseChunkIterator(&chunk_iter);
|
||||
}
|
||||
if ((flags & ICCP_FLAG) &&
|
||||
WebPDemuxGetChunk(demux, "ICCP", 1, &chunk_iter)) {
|
||||
cairo_surface_set_user_data(result, &fiv_io_key_icc,
|
||||
g_bytes_new(chunk_iter.chunk.bytes, chunk_iter.chunk.size),
|
||||
(cairo_destroy_func_t) g_bytes_unref);
|
||||
WebPDemuxReleaseChunkIterator(&chunk_iter);
|
||||
}
|
||||
if ((flags & XMP_FLAG) &&
|
||||
WebPDemuxGetChunk(demux, "XMP ", 1, &chunk_iter)) {
|
||||
cairo_surface_set_user_data(result, &fiv_io_key_xmp,
|
||||
g_bytes_new(chunk_iter.chunk.bytes, chunk_iter.chunk.size),
|
||||
(cairo_destroy_func_t) g_bytes_unref);
|
||||
WebPDemuxReleaseChunkIterator(&chunk_iter);
|
||||
}
|
||||
if (WebPDemuxGetChunk(demux, "THUM", 1, &chunk_iter)) {
|
||||
cairo_surface_set_user_data(result, &fiv_io_key_thum,
|
||||
g_bytes_new(chunk_iter.chunk.bytes, chunk_iter.chunk.size),
|
||||
(cairo_destroy_func_t) g_bytes_unref);
|
||||
WebPDemuxReleaseChunkIterator(&chunk_iter);
|
||||
}
|
||||
if (flags & ANIMATION_FLAG) {
|
||||
cairo_surface_set_user_data(result, &fiv_io_key_loops,
|
||||
(void *) (uintptr_t) WebPDemuxGetI(demux, WEBP_FF_LOOP_COUNT),
|
||||
NULL);
|
||||
}
|
||||
|
||||
WebPDemuxDelete(demux);
|
||||
if (target) {
|
||||
fiv_io_profile_xrgb32_page(result, target);
|
||||
fiv_io_premultiply_argb32_page(result);
|
||||
}
|
||||
|
||||
fail:
|
||||
WebPFreeDecBuffer(&config.output);
|
||||
return result;
|
||||
}
|
||||
|
||||
#ifdef HAVE_LIBHEIF //---------------------------------------------------------
|
||||
|
||||
static cairo_surface_t *
|
||||
|
|
|
|||
Loading…
Reference in New Issue