#include "buffer.h"
#include "frame.h"
-#include "insdel.h"
#include "opaque.h"
-#include "imgproc.h"
#include "sysfile.h"
#ifdef HAVE_PNG
#include "file-coding.h"
#endif
-#if INTBITS == 32
-# define FOUR_BYTE_TYPE unsigned int
-#elif LONGBITS == 32
-# define FOUR_BYTE_TYPE unsigned long
-#elif SHORTBITS == 32
-# define FOUR_BYTE_TYPE unsigned short
-#else
-#error What kind of strange-ass system are we running on?
-#endif
-
#ifdef HAVE_TIFF
DEFINE_IMAGE_INSTANTIATOR_FORMAT (tiff);
Lisp_Object Qtiff;
{
/* we're relying on the jpeg driver to do any other conversions,
or signal an error if the conversion isn't supported. */
- cinfo.out_color_space = JCS_RGB;
+ cinfo.out_color_space = JCS_RGB;
}
/* Step 5: Start decompressor */
for (i = 0; i < cinfo.output_width; i++)
{
int clr;
- if (jpeg_gray)
+ if (jpeg_gray)
{
unsigned char val;
#if (BITS_IN_JSAMPLE == 8)
/* Step 6.5: Create the pixmap and set up the image instance */
/* now instantiate */
- MAYBE_DEVMETH (XDEVICE (ii->device),
+ MAYBE_DEVMETH (XDEVICE (ii->device),
init_image_instance_from_eimage,
- (ii, cinfo.output_width, cinfo.output_height,
- unwind.eimage, dest_mask,
+ (ii, cinfo.output_width, cinfo.output_height, 1,
+ unwind.eimage, dest_mask,
instantiator, domain));
/* Step 7: Finish decompression */
gif_read_from_memory(GifByteType *buf, size_t size, VoidPtr data)
{
gif_memory_storage *mem = (gif_memory_storage*)data;
-
+
if (size > (mem->len - mem->index))
- return -1;
+ return (size_t) -1;
memcpy(buf, mem->bytes + mem->index, size);
mem->index = mem->index + size;
return size;
Extcount len;
int height = 0;
int width = 0;
-
+
xzero (unwind);
record_unwind_protect (gif_instantiate_unwind, make_opaque_ptr (&unwind));
-
+
/* 1. Now decode the data. */
-
+
{
Lisp_Object data = find_keyword_in_vector (instantiator, Q_data);
-
+
assert (!NILP (data));
-
+
if (!(unwind.giffile = GifSetup()))
signal_image_error ("Insufficent memory to instantiate GIF image", instantiator);
-
+
/* set up error facilities */
if (setjmp(gif_err.setjmp_buffer))
{
signal_image_error_2 ("GIF decoding error", errstring, instantiator);
}
GifSetErrorFunc(unwind.giffile, (Gif_error_func)gif_error_func, (VoidPtr)&gif_err);
-
+
GET_STRING_BINARY_DATA_ALLOCA (data, bytes, len);
mem_struct.bytes = bytes;
mem_struct.len = len;
GifSetReadFunc(unwind.giffile, gif_read_from_memory, (VoidPtr)&mem_struct);
GifSetCloseFunc(unwind.giffile, gif_memory_close, (VoidPtr)&mem_struct);
DGifInitRead(unwind.giffile);
-
+
/* Then slurp the image into memory, decoding along the way.
The result is the image in a simple one-byte-per-pixel
format (#### the GIF routines only support 8-bit GIFs,
it appears). */
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, ... */
static int InterlacedOffset[] = { 0, 4, 2, 1 };
static int InterlacedJumps[] = { 8, 8, 4, 2 };
-
+
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);
}
/* jh 98/03/12 - #### AARRRGH! libpng includes jmp_buf inside its own
structure, and there are cases where the size can be different from
- between inside the libarary, and inside the code! To do an end run
+ between inside the library, and inside the code! To do an end run
around this, use our own error functions, and don't rely on things
passed in the png_ptr to them. This is an ugly hack and must
go away when the lisp engine is threaded! */
png_destroy_read_struct (&png_ptr, (png_infopp)NULL, (png_infopp)NULL);
signal_image_error ("Error obtaining memory for png_read", instantiator);
}
-
+
xzero (unwind);
unwind.png_ptr = png_ptr;
unwind.info_ptr = info_ptr;
and is no longer usable for previous versions. jh
*/
- /* Set the jmp_buf reurn context for png_error ... if this returns !0, then
+ /* Set the jmp_buf return context for png_error ... if this returns !0, then
we ran into a problem somewhere, and need to clean up after ourselves. */
if (setjmp (png_err_stct.setjmp_buffer))
{
/* libpng expects that the image buffer passed in contains a
picture to draw on top of if the png has any transparencies.
This could be a good place to pass that in... */
-
+
row_pointers = xnew_array (png_byte *, height);
for (y = 0; y < height; y++)
my_background.green = XINT (XCAR (XCDR (rgblist)));
my_background.blue = XINT (XCAR (XCDR (XCDR (rgblist))));
}
-
+
if (png_get_bKGD (png_ptr, info_ptr, &image_background))
png_set_background (png_ptr, image_background,
PNG_BACKGROUND_GAMMA_FILE, 1, 1.0);
- else
+ else
png_set_background (png_ptr, &my_background,
PNG_BACKGROUND_GAMMA_SCREEN, 0, 1.0);
}
/* Now that we're using EImage, ask for 8bit RGB triples for any type
of image*/
- /* convert palatte images to full RGB */
+ /* convert palette images to full RGB */
if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
png_set_expand (png_ptr);
/* send grayscale images to RGB too */
png_read_image (png_ptr, row_pointers);
png_read_end (png_ptr, info_ptr);
-
+
#ifdef PNG_SHOW_COMMENTS
/* ####
* I turn this off by default now, because the !%^@#!% comments
}
/* now instantiate */
- MAYBE_DEVMETH (XDEVICE (ii->device),
+ 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. */
if ((newidx > mem->len) || (newidx < 0))
return -1;
-
+
mem->index = newidx;
return newidx;
}
xzero (unwind);
record_unwind_protect (tiff_instantiate_unwind, make_opaque_ptr (&unwind));
-
+
/* set up error facilities */
if (setjmp (tiff_err_data.setjmp_buffer))
{
unwind.eimage = (unsigned char *) xmalloc (width * height * 3);
/* ### This is little more than proof-of-concept/function testing.
- It needs to be reimplimented via scanline reads for both memory
+ It needs to be reimplemented via scanline reads for both memory
compactness. */
raster = (uint32*) _TIFFmalloc (width * height * sizeof (uint32));
if (raster != NULL)
}
/* now instantiate */
- MAYBE_DEVMETH (XDEVICE (ii->device),
+ 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