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Imported from libpng-1.2.9beta4.tar

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Glenn Randers-Pehrson
2006-03-02 07:23:18 -06:00
parent 7b34df33a5
commit c3d51c14f2
70 changed files with 25030 additions and 8653 deletions
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13
pngtrans.c
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@@ -1,7 +1,6 @@
/* pngtrans.c - transforms the data in a row (used by both readers and writers)
*
* libpng 1.2.9beta3 - February 24, 2006
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2006 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@@ -242,7 +241,7 @@ png_do_swap(png_row_infop row_info, png_bytep row)
#endif
#if defined(PNG_READ_PACKSWAP_SUPPORTED)||defined(PNG_WRITE_PACKSWAP_SUPPORTED)
static png_byte onebppswaptable[256] = {
static PNG_CONST png_byte onebppswaptable[256] = {
0x00, 0x80, 0x40, 0xC0, 0x20, 0xA0, 0x60, 0xE0,
0x10, 0x90, 0x50, 0xD0, 0x30, 0xB0, 0x70, 0xF0,
0x08, 0x88, 0x48, 0xC8, 0x28, 0xA8, 0x68, 0xE8,
@@ -277,7 +276,7 @@ static png_byte onebppswaptable[256] = {
0x1F, 0x9F, 0x5F, 0xDF, 0x3F, 0xBF, 0x7F, 0xFF
};
static png_byte twobppswaptable[256] = {
static PNG_CONST png_byte twobppswaptable[256] = {
0x00, 0x40, 0x80, 0xC0, 0x10, 0x50, 0x90, 0xD0,
0x20, 0x60, 0xA0, 0xE0, 0x30, 0x70, 0xB0, 0xF0,
0x04, 0x44, 0x84, 0xC4, 0x14, 0x54, 0x94, 0xD4,
@@ -312,7 +311,7 @@ static png_byte twobppswaptable[256] = {
0x2F, 0x6F, 0xAF, 0xEF, 0x3F, 0x7F, 0xBF, 0xFF
};
static png_byte fourbppswaptable[256] = {
static PNG_CONST png_byte fourbppswaptable[256] = {
0x00, 0x10, 0x20, 0x30, 0x40, 0x50, 0x60, 0x70,
0x80, 0x90, 0xA0, 0xB0, 0xC0, 0xD0, 0xE0, 0xF0,
0x01, 0x11, 0x21, 0x31, 0x41, 0x51, 0x61, 0x71,
@@ -363,11 +362,11 @@ png_do_packswap(png_row_infop row_info, png_bytep row)
end = row + row_info->rowbytes;
if (row_info->bit_depth == 1)
table = onebppswaptable;
table = (png_bytep)onebppswaptable;
else if (row_info->bit_depth == 2)
table = twobppswaptable;
table = (png_bytep)twobppswaptable;
else if (row_info->bit_depth == 4)
table = fourbppswaptable;
table = (png_bytep)fourbppswaptable;
else
return;