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LZ4: Decode the image format from the stream

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This commit is contained in:
Javier Celaya 2015-01-28 11:49:46 +01:00 committed by Christophe Fergeau
parent 83c0d642ed
commit f76fc28fc5
1 changed files with 19 additions and 1 deletions
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20
common/canvas_base.c
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@ -527,6 +527,8 @@ static pixman_image_t *canvas_get_lz4(CanvasBase *canvas, SpiceImage *image)
uint8_t *dest, *data, *data_end;
int width, height, top_down;
LZ4_streamDecode_t *stream;
uint8_t spice_format;
pixman_format_code_t format;
spice_chunks_linearize(image->u.lz4.data);
data = image->u.lz4.data->chunk[0].data;
@ -534,12 +536,28 @@ static pixman_image_t *canvas_get_lz4(CanvasBase *canvas, SpiceImage *image)
width = image->descriptor.width;
height = image->descriptor.height;
top_down = *(data++);
spice_format = *(data++);
switch (spice_format) {
case SPICE_BITMAP_FMT_16BIT:
format = PIXMAN_x1r5g5b5;
break;
case SPICE_BITMAP_FMT_24BIT:
case SPICE_BITMAP_FMT_32BIT:
format = PIXMAN_x8r8g8b8;
break;
case SPICE_BITMAP_FMT_RGBA:
format = PIXMAN_a8r8g8b8;
break;
default:
spice_warning("Unsupported bitmap format %d with LZ4\n", spice_format);
return NULL;
}
surface = surface_create(
#ifdef WIN32
canvas->dc,
#endif
PIXMAN_a8r8g8b8,
format,
width, height, top_down);
if (surface == NULL) {
spice_warning("create surface failed");