gryf/wmaker
1
0
Fork 0
mirror of https://github.com/gryf/wmaker.git synced 2026-02-11 19:25:49 +01:00
Code Issues Projects Releases Wiki Activity

changed indentation to use spaces only

Browse Source
This commit is contained in:
dan
2004-10-12 21:28:27 +00:00
parent 5912898b06
commit 6830b05716
240 changed files with 35951 additions and 35773 deletions
Download Patch File Download Diff File Expand all files Collapse all files

259
wrlib/gif.c
View File

@@ -1,19 +1,19 @@
/* gif.c - load GIF image from file
*
*
* Raster graphics library
*
*
* Copyright (c) 1998-2003 Alfredo K. Kojima
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
@@ -56,7 +56,7 @@ RLoadGIF(RContext *context, char *file, int index)
unsigned char bmap[256];
if (index < 0)
index = 0;
index = 0;
/* default error message */
RErrorCode = RERR_BADINDEX;
@@ -64,168 +64,169 @@ RLoadGIF(RContext *context, char *file, int index)
gif = DGifOpenFileName(file);
if (!gif) {
switch (GifLastError()) {
case D_GIF_ERR_OPEN_FAILED:
RErrorCode = RERR_OPEN;
break;
case D_GIF_ERR_READ_FAILED:
RErrorCode = RERR_READ;
break;
default:
RErrorCode = RERR_BADIMAGEFILE;
break;
}
return NULL;
switch (GifLastError()) {
case D_GIF_ERR_OPEN_FAILED:
RErrorCode = RERR_OPEN;
break;
case D_GIF_ERR_READ_FAILED:
RErrorCode = RERR_READ;
break;
default:
RErrorCode = RERR_BADIMAGEFILE;
break;
}
return NULL;
}
if (gif->SWidth<1 || gif->SHeight<1) {
DGifCloseFile(gif);
RErrorCode = RERR_BADIMAGEFILE;
RErrorCode = RERR_BADIMAGEFILE;
return NULL;
}
colormap = gif->SColorMap;
i = 0;
do {
int extCode;
GifByteType *extension;
int extCode;
GifByteType *extension;
if (DGifGetRecordType(gif, &recType) == GIF_ERROR) {
goto giferr;
}
switch (recType) {
case IMAGE_DESC_RECORD_TYPE:
if (i++ != index)
break;
if (DGifGetRecordType(gif, &recType) == GIF_ERROR) {
goto giferr;
}
switch (recType) {
case IMAGE_DESC_RECORD_TYPE:
if (i++ != index)
break;
if (DGifGetImageDesc(gif)==GIF_ERROR) {
goto giferr;
}
width = gif->Image.Width;
height = gif->Image.Height;
if (gif->Image.ColorMap)
colormap = gif->Image.ColorMap;
if (DGifGetImageDesc(gif)==GIF_ERROR) {
goto giferr;
}
/* the gif specs talk about a default colormap, but it
* doesnt say what the heck is this default colormap */
if (!colormap) {
/*
* Well, since the spec says the colormap can be anything,
* lets just render it with whatever garbage the stack
* has :)
*
goto bye;
*/
} else {
for (j = 0; j < colormap->ColorCount; j++) {
rmap[j] = colormap->Colors[j].Red;
gmap[j] = colormap->Colors[j].Green;
bmap[j] = colormap->Colors[j].Blue;
}
}
width = gif->Image.Width;
height = gif->Image.Height;
buffer = malloc(width * sizeof(GifColorType));
if (!buffer) {
RErrorCode = RERR_NOMEMORY;
goto bye;
}
if (gif->Image.ColorMap)
colormap = gif->Image.ColorMap;
image = RCreateImage(width, height, False);
if (!image) {
goto bye;
}
/* the gif specs talk about a default colormap, but it
* doesnt say what the heck is this default colormap */
if (!colormap) {
/*
* Well, since the spec says the colormap can be anything,
* lets just render it with whatever garbage the stack
* has :)
*
if (gif->Image.Interlace) {
int l;
int pelsPerLine;
goto bye;
*/
} else {
for (j = 0; j < colormap->ColorCount; j++) {
rmap[j] = colormap->Colors[j].Red;
gmap[j] = colormap->Colors[j].Green;
bmap[j] = colormap->Colors[j].Blue;
}
}
if (RRGBAFormat==image->format)
pelsPerLine = width * 4;
else
pelsPerLine = width * 3;
buffer = malloc(width * sizeof(GifColorType));
if (!buffer) {
RErrorCode = RERR_NOMEMORY;
goto bye;
}
for (j = 0; j < 4; j++) {
for (k = InterlacedOffset[j]; k < height;
k += InterlacedJumps[j]) {
if (DGifGetLine(gif, buffer, width)==GIF_ERROR) {
goto giferr;
}
cptr = image->data + (k*pelsPerLine);
for (l = 0; l < width; l++) {
int pixel = buffer[l];
*cptr++ = rmap[pixel];
*cptr++ = gmap[pixel];
*cptr++ = bmap[pixel];
}
}
}
} else {
cptr = image->data;
for (j = 0; j < height; j++) {
if (DGifGetLine(gif, buffer, width)==GIF_ERROR) {
goto giferr;
}
for (k = 0; k < width; k++) {
int pixel = buffer[k];
*cptr++ = rmap[pixel];
*cptr++ = gmap[pixel];
*cptr++ = bmap[pixel];
if (RRGBAFormat==image->format)
cptr++;
}
}
}
break;
image = RCreateImage(width, height, False);
if (!image) {
goto bye;
}
case EXTENSION_RECORD_TYPE:
/* skip all extension blocks */
if (DGifGetExtension(gif, &extCode, &extension)==GIF_ERROR) {
goto giferr;
}
while (extension) {
if (DGifGetExtensionNext(gif, &extension)==GIF_ERROR) {
goto giferr;
}
}
break;
if (gif->Image.Interlace) {
int l;
int pelsPerLine;
default:
break;
}
if (RRGBAFormat==image->format)
pelsPerLine = width * 4;
else
pelsPerLine = width * 3;
for (j = 0; j < 4; j++) {
for (k = InterlacedOffset[j]; k < height;
k += InterlacedJumps[j]) {
if (DGifGetLine(gif, buffer, width)==GIF_ERROR) {
goto giferr;
}
cptr = image->data + (k*pelsPerLine);
for (l = 0; l < width; l++) {
int pixel = buffer[l];
*cptr++ = rmap[pixel];
*cptr++ = gmap[pixel];
*cptr++ = bmap[pixel];
}
}
}
} else {
cptr = image->data;
for (j = 0; j < height; j++) {
if (DGifGetLine(gif, buffer, width)==GIF_ERROR) {
goto giferr;
}
for (k = 0; k < width; k++) {
int pixel = buffer[k];
*cptr++ = rmap[pixel];
*cptr++ = gmap[pixel];
*cptr++ = bmap[pixel];
if (RRGBAFormat==image->format)
cptr++;
}
}
}
break;
case EXTENSION_RECORD_TYPE:
/* skip all extension blocks */
if (DGifGetExtension(gif, &extCode, &extension)==GIF_ERROR) {
goto giferr;
}
while (extension) {
if (DGifGetExtensionNext(gif, &extension)==GIF_ERROR) {
goto giferr;
}
}
break;
default:
break;
}
} while (recType != TERMINATE_RECORD_TYPE && i <= index);
/* yuck! */
goto did_not_get_any_errors;
giferr:
switch (GifLastError()) {
case D_GIF_ERR_OPEN_FAILED:
RErrorCode = RERR_OPEN;
break;
case D_GIF_ERR_READ_FAILED:
RErrorCode = RERR_READ;
break;
default:
RErrorCode = RERR_BADIMAGEFILE;
break;
case D_GIF_ERR_OPEN_FAILED:
RErrorCode = RERR_OPEN;
break;
case D_GIF_ERR_READ_FAILED:
RErrorCode = RERR_READ;
break;
default:
RErrorCode = RERR_BADIMAGEFILE;
break;
}
bye:
if (image)
RReleaseImage(image);
RReleaseImage(image);
image = NULL;
did_not_get_any_errors:
if (buffer)
free(buffer);
free(buffer);
if (gif)
DGifCloseFile(gif);
DGifCloseFile(gif);
return image;
}
#endif /* USE_GIF */