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changed format of RImage, added x86 speicfic optimized code

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kojima
2000-01-14 16:39:15 +00:00
parent f2de1c9dcf
commit a30475fc0f
23 changed files with 1527 additions and 1324 deletions
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26
wrlib/tiff.c
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@@ -47,6 +47,7 @@ RLoadTIFF(RContext *context, char *file, int index)
uint32 *data, *ptr;
uint16 extrasamples;
uint16 *sampleinfo;
int ch;
tif = TIFFOpen(file, "r");
@@ -93,14 +94,19 @@ RLoadTIFF(RContext *context, char *file, int index)
/* convert data */
image = RCreateImage(width, height, alpha);
if (alpha)
ch = 4;
else
ch = 3;
if (image) {
int x, y;
r = image->data[0];
g = image->data[1];
b = image->data[2];
a = image->data[3];
r = image->data;
g = image->data+1;
b = image->data+2;
a = image->data+3;
/* data seems to be stored upside down */
data += width * (height-1);
@@ -114,16 +120,16 @@ RLoadTIFF(RContext *context, char *file, int index)
if (alpha) {
*(a) = (*data >> 24) & 0xff;
if (amode && (*a > 0)) {
*r = (*r * 255) / *(a);
*g = (*g * 255) / *(a);
*b = (*b * 255) / *(a);
if (amode && (*a > 0)) {
*r = (*r * 255) / *(a);
*g = (*g * 255) / *(a);
*b = (*b * 255) / *(a);
}
a++;
a+=4;
}
r++; g++; b++;
r+=ch; g+=ch; b+=ch;
data++;
}
data -= 2*width;