mirror of
https://github.com/gryf/wmaker.git
synced 2025-12-20 12:58:08 +01:00
Change to the linux kernel coding style
for arq in `git ls-files *.c`; do
echo $arq;
indent -linux -l115 $arq;
done
The different line break at 115 columns is because
I use a widescreen monitor :-)
This commit is contained in:
Carlos R. Mafra
324
wrlib/gif.c
324
wrlib/gif.c
@@ -21,7 +21,6 @@
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#include <config.h>
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#ifdef USE_GIF
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#include <stdlib.h>
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@@ -32,201 +31,196 @@
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#include "wraster.h"
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static int InterlacedOffset[] = { 0, 4, 2, 1 };
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static int InterlacedJumps[] = { 8, 8, 4, 2 };
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/*
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* Partially based on code in gif2rgb from giflib, by Gershon Elber.
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*/
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RImage*
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RLoadGIF(RContext *context, char *file, int index)
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RImage *RLoadGIF(RContext * context, char *file, int index)
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{
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RImage *image = NULL;
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unsigned char *cptr;
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GifFileType *gif = NULL;
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GifPixelType *buffer = NULL;
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int i, j, k;
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int width, height;
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GifRecordType recType;
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ColorMapObject *colormap;
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unsigned char rmap[256];
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unsigned char gmap[256];
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unsigned char bmap[256];
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RImage *image = NULL;
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unsigned char *cptr;
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GifFileType *gif = NULL;
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GifPixelType *buffer = NULL;
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int i, j, k;
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int width, height;
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GifRecordType recType;
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ColorMapObject *colormap;
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unsigned char rmap[256];
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unsigned char gmap[256];
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unsigned char bmap[256];
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if (index < 0)
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index = 0;
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if (index < 0)
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index = 0;
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/* default error message */
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RErrorCode = RERR_BADINDEX;
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/* default error message */
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RErrorCode = RERR_BADINDEX;
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gif = DGifOpenFileName(file);
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gif = DGifOpenFileName(file);
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if (!gif) {
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switch (GifLastError()) {
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case D_GIF_ERR_OPEN_FAILED:
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RErrorCode = RERR_OPEN;
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break;
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case D_GIF_ERR_READ_FAILED:
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RErrorCode = RERR_READ;
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break;
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default:
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RErrorCode = RERR_BADIMAGEFILE;
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break;
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}
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return NULL;
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}
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if (!gif) {
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switch (GifLastError()) {
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case D_GIF_ERR_OPEN_FAILED:
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RErrorCode = RERR_OPEN;
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break;
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case D_GIF_ERR_READ_FAILED:
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RErrorCode = RERR_READ;
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break;
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default:
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RErrorCode = RERR_BADIMAGEFILE;
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break;
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}
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return NULL;
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}
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if (gif->SWidth<1 || gif->SHeight<1) {
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DGifCloseFile(gif);
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RErrorCode = RERR_BADIMAGEFILE;
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return NULL;
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}
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if (gif->SWidth < 1 || gif->SHeight < 1) {
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DGifCloseFile(gif);
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RErrorCode = RERR_BADIMAGEFILE;
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return NULL;
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}
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colormap = gif->SColorMap;
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colormap = gif->SColorMap;
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i = 0;
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i = 0;
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do {
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int extCode;
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GifByteType *extension;
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do {
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int extCode;
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GifByteType *extension;
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if (DGifGetRecordType(gif, &recType) == GIF_ERROR) {
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goto giferr;
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}
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switch (recType) {
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case IMAGE_DESC_RECORD_TYPE:
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if (i++ != index)
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break;
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if (DGifGetRecordType(gif, &recType) == GIF_ERROR) {
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goto giferr;
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}
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switch (recType) {
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case IMAGE_DESC_RECORD_TYPE:
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if (i++ != index)
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break;
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if (DGifGetImageDesc(gif)==GIF_ERROR) {
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goto giferr;
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}
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if (DGifGetImageDesc(gif) == GIF_ERROR) {
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goto giferr;
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}
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width = gif->Image.Width;
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height = gif->Image.Height;
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width = gif->Image.Width;
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height = gif->Image.Height;
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if (gif->Image.ColorMap)
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colormap = gif->Image.ColorMap;
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if (gif->Image.ColorMap)
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colormap = gif->Image.ColorMap;
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/* the gif specs talk about a default colormap, but it
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* doesnt say what the heck is this default colormap */
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if (!colormap) {
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/*
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* Well, since the spec says the colormap can be anything,
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* lets just render it with whatever garbage the stack
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* has :)
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*
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/* the gif specs talk about a default colormap, but it
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* doesnt say what the heck is this default colormap */
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if (!colormap) {
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/*
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* Well, since the spec says the colormap can be anything,
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* lets just render it with whatever garbage the stack
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* has :)
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*
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goto bye;
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*/
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} else {
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for (j = 0; j < colormap->ColorCount; j++) {
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rmap[j] = colormap->Colors[j].Red;
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gmap[j] = colormap->Colors[j].Green;
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bmap[j] = colormap->Colors[j].Blue;
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}
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}
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goto bye;
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*/
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} else {
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for (j = 0; j < colormap->ColorCount; j++) {
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rmap[j] = colormap->Colors[j].Red;
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gmap[j] = colormap->Colors[j].Green;
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bmap[j] = colormap->Colors[j].Blue;
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}
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}
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buffer = malloc(width * sizeof(GifColorType));
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if (!buffer) {
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RErrorCode = RERR_NOMEMORY;
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goto bye;
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}
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buffer = malloc(width * sizeof(GifColorType));
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if (!buffer) {
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RErrorCode = RERR_NOMEMORY;
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goto bye;
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}
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image = RCreateImage(width, height, False);
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if (!image) {
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goto bye;
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}
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image = RCreateImage(width, height, False);
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if (!image) {
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goto bye;
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}
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if (gif->Image.Interlace) {
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int l;
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int pelsPerLine;
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if (gif->Image.Interlace) {
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int l;
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int pelsPerLine;
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if (RRGBAFormat==image->format)
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pelsPerLine = width * 4;
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else
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pelsPerLine = width * 3;
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if (RRGBAFormat == image->format)
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pelsPerLine = width * 4;
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else
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pelsPerLine = width * 3;
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for (j = 0; j < 4; j++) {
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for (k = InterlacedOffset[j]; k < height;
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k += InterlacedJumps[j]) {
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if (DGifGetLine(gif, buffer, width)==GIF_ERROR) {
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goto giferr;
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}
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cptr = image->data + (k*pelsPerLine);
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for (l = 0; l < width; l++) {
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int pixel = buffer[l];
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*cptr++ = rmap[pixel];
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*cptr++ = gmap[pixel];
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*cptr++ = bmap[pixel];
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}
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}
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}
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} else {
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cptr = image->data;
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for (j = 0; j < height; j++) {
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if (DGifGetLine(gif, buffer, width)==GIF_ERROR) {
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goto giferr;
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}
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for (k = 0; k < width; k++) {
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int pixel = buffer[k];
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*cptr++ = rmap[pixel];
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*cptr++ = gmap[pixel];
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*cptr++ = bmap[pixel];
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if (RRGBAFormat==image->format)
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cptr++;
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}
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}
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}
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break;
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for (j = 0; j < 4; j++) {
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for (k = InterlacedOffset[j]; k < height; k += InterlacedJumps[j]) {
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if (DGifGetLine(gif, buffer, width) == GIF_ERROR) {
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goto giferr;
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}
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cptr = image->data + (k * pelsPerLine);
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for (l = 0; l < width; l++) {
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int pixel = buffer[l];
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*cptr++ = rmap[pixel];
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*cptr++ = gmap[pixel];
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*cptr++ = bmap[pixel];
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}
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}
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}
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} else {
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cptr = image->data;
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for (j = 0; j < height; j++) {
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if (DGifGetLine(gif, buffer, width) == GIF_ERROR) {
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goto giferr;
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}
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for (k = 0; k < width; k++) {
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int pixel = buffer[k];
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*cptr++ = rmap[pixel];
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*cptr++ = gmap[pixel];
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*cptr++ = bmap[pixel];
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if (RRGBAFormat == image->format)
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cptr++;
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}
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}
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}
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break;
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case EXTENSION_RECORD_TYPE:
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/* skip all extension blocks */
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if (DGifGetExtension(gif, &extCode, &extension)==GIF_ERROR) {
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goto giferr;
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}
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while (extension) {
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if (DGifGetExtensionNext(gif, &extension)==GIF_ERROR) {
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goto giferr;
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}
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}
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break;
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case EXTENSION_RECORD_TYPE:
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/* skip all extension blocks */
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if (DGifGetExtension(gif, &extCode, &extension) == GIF_ERROR) {
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goto giferr;
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}
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while (extension) {
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if (DGifGetExtensionNext(gif, &extension) == GIF_ERROR) {
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goto giferr;
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}
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}
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break;
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default:
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break;
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}
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} while (recType != TERMINATE_RECORD_TYPE && i <= index);
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default:
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break;
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}
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} while (recType != TERMINATE_RECORD_TYPE && i <= index);
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/* yuck! */
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goto did_not_get_any_errors;
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giferr:
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switch (GifLastError()) {
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case D_GIF_ERR_OPEN_FAILED:
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RErrorCode = RERR_OPEN;
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break;
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case D_GIF_ERR_READ_FAILED:
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RErrorCode = RERR_READ;
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break;
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default:
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RErrorCode = RERR_BADIMAGEFILE;
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break;
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}
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bye:
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if (image)
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RReleaseImage(image);
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image = NULL;
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did_not_get_any_errors:
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/* yuck! */
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goto did_not_get_any_errors;
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giferr:
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switch (GifLastError()) {
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case D_GIF_ERR_OPEN_FAILED:
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RErrorCode = RERR_OPEN;
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break;
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case D_GIF_ERR_READ_FAILED:
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RErrorCode = RERR_READ;
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break;
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default:
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RErrorCode = RERR_BADIMAGEFILE;
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break;
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}
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bye:
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if (image)
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RReleaseImage(image);
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image = NULL;
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did_not_get_any_errors:
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if (buffer)
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free(buffer);
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if (buffer)
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free(buffer);
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if (gif)
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DGifCloseFile(gif);
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if (gif)
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DGifCloseFile(gif);
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return image;
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return image;
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}
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#endif /* USE_GIF */
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#endif /* USE_GIF */
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Block a user