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| author | Yonit Halperin <yhalperi@redhat.com> | 2010-06-20 17:18:56 +0300 |
|---|---|---|
| committer | Alexander Larsson <alexl@redhat.com> | 2010-06-21 15:18:26 +0200 |
| commit | 537280f183d3a35e8dee8a20238c71e7440cb28c (patch) | |
| tree | fdec86a392b8cde474b8e1b5c85f03bb6caf441e /common/lz.c | |
| parent | 25bb38f643af6f0015df369a22176275b6ebfae0 (diff) | |
| download | spice-537280f183d3a35e8dee8a20238c71e7440cb28c.tar.gz spice-537280f183d3a35e8dee8a20238c71e7440cb28c.tar.xz spice-537280f183d3a35e8dee8a20238c71e7440cb28c.zip | |
Lossy compression of RGBA images (on WAN connection)
The RGB channels are compressed using JPEG.
The alpha channel is compressed using LZ.
Diffstat (limited to 'common/lz.c')
| -rw-r--r-- | common/lz.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/common/lz.c b/common/lz.c index 73a797c7..e5635849 100644 --- a/common/lz.c +++ b/common/lz.c @@ -565,6 +565,9 @@ int lz_encode(LzContext *lz, LzImageType type, int width, int height, int top_do lz_rgb32_compress(encoder); lz_rgb_alpha_compress(encoder); break; + case LZ_IMAGE_TYPE_XXXA: + lz_rgb_alpha_compress(encoder); + break; case LZ_IMAGE_TYPE_INVALID: default: encoder->usr->error(encoder->usr, "bad image type\n"); @@ -661,6 +664,7 @@ void lz_decode(LzContext *lz, LzImageType to_type, uint8_t *buf) case LZ_IMAGE_TYPE_RGB24: case LZ_IMAGE_TYPE_RGB32: case LZ_IMAGE_TYPE_RGBA: + case LZ_IMAGE_TYPE_XXXA: case LZ_IMAGE_TYPE_INVALID: default: encoder->usr->error(encoder->usr, "bad image type\n"); @@ -705,6 +709,14 @@ void lz_decode(LzContext *lz, LzImageType to_type, uint8_t *buf) encoder->usr->error(encoder->usr, "unsupported output format\n"); } break; + case LZ_IMAGE_TYPE_XXXA: + if (encoder->type == to_type) { + alpha_size = lz_rgb_alpha_decompress(encoder, (rgb32_pixel_t *)buf, size); + out_size = alpha_size; + } else { + encoder->usr->error(encoder->usr, "unsupported output format\n"); + } + break; case LZ_IMAGE_TYPE_PLT1_LE: case LZ_IMAGE_TYPE_PLT1_BE: case LZ_IMAGE_TYPE_PLT4_LE: |