/* now instantiate */
MAYBE_DEVMETH (XDEVICE (ii->device),
init_image_instance_from_eimage,
- (ii, cinfo.output_width, cinfo.output_height,
+ (ii, cinfo.output_width, cinfo.output_height, 1,
unwind.eimage, dest_mask,
instantiator, domain));
DGifSlurp (unwind.giffile);
}
- /* 3. Now create the EImage */
+ /* 3. Now create the EImage(s) */
{
ColorMapObject *cmo = unwind.giffile->SColorMap;
- int i, j, row, pass, interlace;
+ int i, j, row, pass, interlace, slice;
unsigned char *eip;
/* interlaced gifs have rows in this order:
0, 8, 16, ..., 4, 12, 20, ..., 2, 6, 10, ..., 1, 3, 5, ... */
height = unwind.giffile->SHeight;
width = unwind.giffile->SWidth;
- unwind.eimage = (unsigned char*) xmalloc (width * height * 3);
+ unwind.eimage = (unsigned char*)
+ xmalloc (width * height * 3 * unwind.giffile->ImageCount);
if (!unwind.eimage)
signal_image_error("Unable to allocate enough memory for image", instantiator);
/* write the data in EImage format (8bit RGB triples) */
- /* Note: We just use the first image in the file and ignore the rest.
- We check here that that image covers the full "screen" size.
- I don't know whether that's always the case.
- -dkindred@cs.cmu.edu */
- if (unwind.giffile->SavedImages[0].ImageDesc.Height != height
- || unwind.giffile->SavedImages[0].ImageDesc.Width != width
- || unwind.giffile->SavedImages[0].ImageDesc.Left != 0
- || unwind.giffile->SavedImages[0].ImageDesc.Top != 0)
- signal_image_error ("First image in GIF file is not full size",
- instantiator);
-
- interlace = unwind.giffile->SavedImages[0].ImageDesc.Interlace;
- pass = 0;
- row = interlace ? InterlacedOffset[pass] : 0;
- eip = unwind.eimage;
- for (i = 0; i < height; i++)
+ for (slice = 0; slice < unwind.giffile->ImageCount; slice++)
{
- if (interlace)
- if (row >= height) {
- row = InterlacedOffset[++pass];
- while (row >= height)
- row = InterlacedOffset[++pass];
- }
- eip = unwind.eimage + (row * width * 3);
- for (j = 0; j < width; j++)
+ /* We check here that that the current image covers the full "screen" size. */
+ if (unwind.giffile->SavedImages[slice].ImageDesc.Height != height
+ || unwind.giffile->SavedImages[slice].ImageDesc.Width != width
+ || unwind.giffile->SavedImages[slice].ImageDesc.Left != 0
+ || unwind.giffile->SavedImages[slice].ImageDesc.Top != 0)
+ signal_image_error ("Image in GIF file is not full size",
+ instantiator);
+
+ interlace = unwind.giffile->SavedImages[slice].ImageDesc.Interlace;
+ pass = 0;
+ row = interlace ? InterlacedOffset[pass] : 0;
+ eip = unwind.eimage + (width * height * 3 * slice);
+ for (i = 0; i < height; i++)
{
- unsigned char pixel = unwind.giffile->SavedImages[0].RasterBits[(i * width) + j];
- *eip++ = cmo->Colors[pixel].Red;
- *eip++ = cmo->Colors[pixel].Green;
- *eip++ = cmo->Colors[pixel].Blue;
+ if (interlace)
+ if (row >= height) {
+ row = InterlacedOffset[++pass];
+ while (row >= height)
+ row = InterlacedOffset[++pass];
+ }
+ eip = unwind.eimage + (width * height * 3 * slice) + (row * width * 3);
+ for (j = 0; j < width; j++)
+ {
+ unsigned char pixel =
+ unwind.giffile->SavedImages[slice].RasterBits[(i * width) + j];
+ *eip++ = cmo->Colors[pixel].Red;
+ *eip++ = cmo->Colors[pixel].Green;
+ *eip++ = cmo->Colors[pixel].Blue;
+ }
+ row += interlace ? InterlacedJumps[pass] : 1;
}
- row += interlace ? InterlacedJumps[pass] : 1;
}
+
+ /* now instantiate */
+ MAYBE_DEVMETH (XDEVICE (ii->device),
+ init_image_instance_from_eimage,
+ (ii, width, height, unwind.giffile->ImageCount, unwind.eimage, dest_mask,
+ instantiator, domain));
}
- /* now instantiate */
- MAYBE_DEVMETH (XDEVICE (ii->device),
- init_image_instance_from_eimage,
- (ii, width, height, unwind.eimage, dest_mask,
- instantiator, domain));
+ /* We read the gif successfully. If we have more than one slice then
+ animate the gif. */
+ if (unwind.giffile->ImageCount > 1)
+ {
+ /* See if there is a timeout value. In theory there could be one
+ for every image - but that makes the implementation way to
+ complicated for now so we just take the first. */
+ unsigned short timeout = 0;
+ Lisp_Object tid;
+
+ if (unwind.giffile->SavedImages[0].Function == GRAPHICS_EXT_FUNC_CODE
+ &&
+ unwind.giffile->SavedImages[0].ExtensionBlockCount)
+ {
+ timeout = (unsigned short)
+ ((unwind.giffile->SavedImages[0].ExtensionBlocks[0].Bytes[2] << 8) +
+ unwind.giffile-> SavedImages[0].ExtensionBlocks[0].Bytes[1]) * 10;
+ }
+
+ /* Too short a timeout will crucify us performance-wise. */
+ tid = add_glyph_animated_timeout (timeout > 10 ? timeout : 10, image_instance);
+
+ if (!NILP (tid))
+ IMAGE_INSTANCE_PIXMAP_TIMEOUT (ii) = XINT (tid);
+ }
+
unbind_to (speccount, Qnil);
}
/* now instantiate */
MAYBE_DEVMETH (XDEVICE (ii->device),
init_image_instance_from_eimage,
- (ii, width, height, unwind.eimage, dest_mask,
+ (ii, width, height, 1, unwind.eimage, dest_mask,
instantiator, domain));
/* This will clean up everything else. */
/* now instantiate */
MAYBE_DEVMETH (XDEVICE (ii->device),
init_image_instance_from_eimage,
- (ii, width, height, unwind.eimage, dest_mask,
+ (ii, width, height, 1, unwind.eimage, dest_mask,
instantiator, domain));
unbind_to (speccount, Qnil);
projects / chise / xemacs-chise.git.1 / blobdiff