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scrolling works somewhat

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the indexes are not entirely correct
This commit is contained in:
Wei-ju Wu
2016-01-21 07:19:50 -08:00
parent 3573e7b9a0
commit 907e05c7bc
7 changed files with 160 additions and 121 deletions
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iffview/ilbm.c
+7 -7
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@@ -102,7 +102,7 @@ void read_CRNG(FILE *fp, int datasize)
UBYTE *read_BODY(FILE *fp, int datasize, BitMapHeader *bmheader, int *data_bytes)
{
ULONG bytes_read;
BYTE *buffer, *dst_buffer;
UBYTE *buffer, *dst_buffer;
int src_i = 0, dst_i = 0, dst_size;
buffer = malloc(datasize);
@@ -153,11 +153,11 @@ ILBMData *read_chunks(FILE *fp, int filesize, int total_read)
#else
datasize = *((ULONG *) &buffer[4]);
#endif
if (!strncmp("BMHD", buffer, 4)) bmheader = read_BMHD(fp, datasize);
else if (!strncmp("CMAP", buffer, 4)) colors = read_CMAP(fp, datasize, &result->num_colors);
else if (!strncmp("CRNG", buffer, 4)) read_CRNG(fp, datasize);
else if (!strncmp("CAMG", buffer, 4)) bmheader->camgFlags = read_CAMG(fp, datasize);
else if (!strncmp("BODY", buffer, 4)) imgdata = read_BODY(fp, datasize, bmheader, &imgdata_size);
if (!strncmp("BMHD", (const char *) buffer, 4)) bmheader = read_BMHD(fp, datasize);
else if (!strncmp("CMAP", (const char *) buffer, 4)) colors = read_CMAP(fp, datasize, &result->num_colors);
else if (!strncmp("CRNG", (const char *) buffer, 4)) read_CRNG(fp, datasize);
else if (!strncmp("CAMG", (const char *) buffer, 4)) bmheader->camgFlags = read_CAMG(fp, datasize);
else if (!strncmp("BODY", (const char *) buffer, 4)) imgdata = read_BODY(fp, datasize, bmheader, &imgdata_size);
else {
#ifdef DEBUG
printf("WARNING - Unsupported chunk '%s', size: %d\n", id, datasize);
@@ -263,7 +263,7 @@ void ilbm_to_image_data(char *dest, ILBMData *data, int dest_width, int dest_hei
}
int src_bytes_per_row = data->bmheader->w / 8;
int dest_bytes_per_row = dest_width / 8;
char *src_ptr = data->imgdata;
UBYTE *src_ptr = data->imgdata;
int src_offset, img_height = data->bmheader->h, num_planes = data->bmheader->nPlanes;
int row_data_size = num_planes * src_bytes_per_row;