static int
PyImagingPhotoPut(ClientData clientdata, Tcl_Interp* interp,
int argc, char **argv)
{
Imaging im;
Tk_PhotoHandle photo;
Tk_PhotoImageBlock block;
if (argc != 3) {
Tcl_AppendResult(interp, "usage: ", argv[0],
" destPhoto srcImage", (char *) NULL);
return TCL_ERROR;
}
/* get Tcl PhotoImage handle */
photo = Tk_FindPhoto(interp, argv[1]);
if (photo == NULL) {
Tcl_AppendResult(
interp, "destination photo must exist", (char *) NULL
);
return TCL_ERROR;
}
/* get PIL Image handle */
im = ImagingFind(argv[2]);
if (!im) {
Tcl_AppendResult(interp, "bad name", (char*) NULL);
return TCL_ERROR;
}
if (!im->block) {
Tcl_AppendResult(interp, "bad display memory", (char*) NULL);
return TCL_ERROR;
}
/* Active region */
#if 0
if (src_xoffset + xsize > im->xsize)
xsize = im->xsize - src_xoffset;
if (src_yoffset + ysize > im->ysize)
ysize = im->ysize - src_yoffset;
if (xsize < 0 || ysize < 0
|| src_xoffset >= im->xsize
|| src_yoffset >= im->ysize)
return TCL_OK;
#endif
/* Mode */
if (strcmp(im->mode, "1") == 0 || strcmp(im->mode, "L") == 0) {
block.pixelSize = 1;
block.offset[0] = block.offset[1] = block.offset[2] = 0;
} else if (strncmp(im->mode, "RGB", 3) == 0) {
block.pixelSize = 4;
block.offset[0] = 0;
block.offset[1] = 1;
block.offset[2] = 2;
if (strcmp(im->mode, "RGBA") == 0)
block.offset[3] = 3; /* alpha (or reserved, under 8.2) */
else
block.offset[3] = 0; /* no alpha */
} else {
Tcl_AppendResult(interp, "Bad mode", (char*) NULL);
return TCL_ERROR;
}
block.width = im->xsize;
block.height = im->ysize;
block.pitch = im->linesize;
block.pixelPtr = (unsigned char*) im->block;
#if 0
block.pixelPtr = (unsigned char*) im->block +
src_yoffset * im->linesize +
src_xoffset * im->pixelsize;
#endif
#if TK < 84 /* < 8.4.0 */
if (strcmp(im->mode, "RGBA") == 0) {
/* Copy non-transparent pixels to photo image */
int x, y;
Tk_PhotoImageBlock run;
/* Clear current contents */
Tk_PhotoBlank(photo);
/* Setup run descriptor */
run.height = 1;
run.pitch = block.pitch;
run.pixelSize = block.pixelSize;
run.offset[0] = 0;
run.offset[1] = 1;
run.offset[2] = 2;
run.offset[3] = 0; /* no alpha (or reserved, under 8.2) */
/* Copy opaque runs to photo image */
for (y = 0; y < block.height; y++) {
unsigned char* p = block.pixelPtr + y*block.pitch;
unsigned char* s = p;
int w = 0;
for (x = 0; x < block.width; x++) {
if (p[3]) {
/* opaque: add pixel to current run */
if (w == 0)
s = p;
w = w + 1;
} else if (s) {
/* copy run to photo image */
if (w > 0) {
run.width = w;
run.pixelPtr = s;
Tk_PhotoPutBlock(photo, &run, x-w, y, run.width, 1);
}
w = 0;
}
p += block.pixelSize;
}
if (w > 0) {
/* copy final run, if any */
run.width = w;
run.pixelPtr = s;
Tk_PhotoPutBlock(photo, &run, x-w, y, run.width, 1);
}
}
} else
/* Copy opaque block to photo image, and leave the rest to TK */
Tk_PhotoPutBlock(photo, &block, 0, 0, block.width, block.height);
#else /* Tk 8.4 and newer */
#if TK < 85 /* Tk 8.4 */
Tk_PhotoPutBlock(photo, &block, 0, 0, block.width, block.height,
TK_PHOTO_COMPOSITE_SET);
if (strcmp(im->mode, "RGBA") == 0)
/* Tk workaround: we need apply ToggleComplexAlphaIfNeeded */
/* (fixed in Tk 8.5a3) */
Tk_PhotoSetSize(photo, block.width, block.height);
#else /* Tk 8.5 */
Tk_PhotoPutBlock(interp, photo, &block, 0, 0, block.width, block.height,
TK_PHOTO_COMPOSITE_SET);
#endif
#endif
return TCL_OK;
}
static int
PyImagingPhotoPut(ClientData clientdata, Tcl_Interp* interp,
int argc, char **argv)
{
Imaging im;
Tk_PhotoHandle photo;
Tk_PhotoImageBlock block;
if (argc != 3) {
Tcl_AppendResult(interp, "usage: ", argv[0],
" destPhoto srcImage", (char *) NULL);
return TCL_ERROR;
}
/* get Tcl PhotoImage handle */
photo = Tk_FindPhoto(interp, argv[1]);
if (photo == NULL) {
Tcl_AppendResult(
interp, "destination photo must exist", (char *) NULL
);
return TCL_ERROR;
}
/* get PIL Image handle */
im = ImagingFind(argv[2]);
if (!im) {
Tcl_AppendResult(interp, "bad name", (char*) NULL);
return TCL_ERROR;
}
if (!im->block) {
Tcl_AppendResult(interp, "bad display memory", (char*) NULL);
return TCL_ERROR;
}
/* Active region */
#if 0
if (src_xoffset + xsize > im->xsize)
xsize = im->xsize - src_xoffset;
if (src_yoffset + ysize > im->ysize)
ysize = im->ysize - src_yoffset;
if (xsize < 0 || ysize < 0
|| src_xoffset >= im->xsize
|| src_yoffset >= im->ysize)
return TCL_OK;
#endif
/* Mode */
if (strcmp(im->mode, "1") == 0 || strcmp(im->mode, "L") == 0) {
block.pixelSize = 1;
block.offset[0] = block.offset[1] = block.offset[2] = 0;
} else if (strncmp(im->mode, "RGB", 3) == 0) {
block.pixelSize = 4;
block.offset[0] = 0;
block.offset[1] = 1;
block.offset[2] = 2;
if (strcmp(im->mode, "RGBA") == 0)
block.offset[3] = 3; /* alpha (or reserved, under 8.2) */
else
block.offset[3] = 0; /* no alpha */
} else {
Tcl_AppendResult(interp, "Bad mode", (char*) NULL);
return TCL_ERROR;
}
block.width = im->xsize;
block.height = im->ysize;
block.pitch = im->linesize;
block.pixelPtr = (unsigned char*) im->block;
#if 0
block.pixelPtr = (unsigned char*) im->block +
src_yoffset * im->linesize +
src_xoffset * im->pixelsize;
#endif
#if TK < 85 /* Tk 8.4 */
Tk_PhotoPutBlock(photo, &block, 0, 0, block.width, block.height,
TK_PHOTO_COMPOSITE_SET);
if (strcmp(im->mode, "RGBA") == 0)
/* Tk workaround: we need apply ToggleComplexAlphaIfNeeded */
/* (fixed in Tk 8.5a3) */
Tk_PhotoSetSize(photo, block.width, block.height);
#else /* Tk 8.5 */
Tk_PhotoPutBlock(interp, photo, &block, 0, 0, block.width, block.height,
TK_PHOTO_COMPOSITE_SET);
#endif
return TCL_OK;
}
