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take GL_UNPACK_ALIGNMENT into account in _mesa_image_row_stride() for GL_BITMAP type (bug 10261)

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Brian 2007-03-12 09:35:44 -06:00
parent d0a3400f66
commit c1a5447337
1 changed files with 6 additions and 1 deletions
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7
src/mesa/main/image.c
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@ -667,7 +667,7 @@ _mesa_image_row_stride( const struct gl_pixelstore_attrib *packing,
ASSERT(packing);
if (type == GL_BITMAP) {
/* BITMAP data */
GLint bytes;
GLint bytes, remainder;
if (packing->RowLength == 0) {
bytes = (width + 7) / 8;
}
@ -678,6 +678,11 @@ _mesa_image_row_stride( const struct gl_pixelstore_attrib *packing,
/* negate the bytes per row (negative row stride) */
bytes = -bytes;
}
remainder = bytes % packing->Alignment;
if (remainder > 0)
bytes += (packing->Alignment - remainder);
return bytes;
}
else {