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[libpng10] Imported from libpng-1.0.16.tar

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Glenn Randers-Pehrson
2004-08-15 07:11:04 -05:00
parent 4fc3118b59
commit f47b4b1bf7
99 changed files with 3722 additions and 3976 deletions
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35
pnggccrd.c
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@@ -6,9 +6,9 @@
* and http://www.intel.com/drg/pentiumII/appnotes/923/923.htm
* for Intel's performance analysis of the MMX vs. non-MMX code.
*
* libpng version 1.0.15 - October 3, 2002
* libpng version 1.0.16 - August 15, 2004
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2002 Glenn Randers-Pehrson
* Copyright (c) 1998-2004 Glenn Randers-Pehrson
* Copyright (c) 1998, Intel Corporation
*
* Based on MSVC code contributed by Nirav Chhatrapati, Intel Corp., 1998.
@@ -223,6 +223,10 @@
* 20020304:
* - eliminated incorrect use of width_mmx in pixel_bytes == 8 case
*
* 20040724:
* - more tinkering with clobber list at lines 4529 and 5033, to get
* it to compile on gcc-3.4.
*
* STILL TO DO:
* - test png_do_read_interlace() 64-bit case (pixel_bytes == 8)
* - write MMX code for 48-bit case (pixel_bytes == 6)
@@ -412,8 +416,10 @@ png_combine_row(png_structp png_ptr, png_bytep row, int mask)
#if defined(PNG_ASSEMBLER_CODE_SUPPORTED)
if (_mmx_supported == 2) {
#if !defined(PNG_1_0_X)
/* this should have happened in png_init_mmx_flags() already */
png_warning(png_ptr, "asm_flags may not have been initialized");
#endif
png_mmx_support();
}
#endif
@@ -422,7 +428,7 @@ png_combine_row(png_structp png_ptr, png_bytep row, int mask)
{
png_debug(2,"mask == 0xff: doing single png_memcpy()\n");
png_memcpy(row, png_ptr->row_buf + 1,
(png_size_t)((png_ptr->width * png_ptr->row_info.pixel_depth + 7) >> 3));
(png_size_t)PNG_ROWBYTES(png_ptr->row_info.pixel_depth,png_ptr->width));
}
else /* (png_combine_row() is never called with mask == 0) */
{
@@ -1767,8 +1773,8 @@ png_do_read_interlace(png_structp png_ptr)
: "1" (sptr), // esi // input regs
"2" (dp), // edi
"0" (width) // ecx
// doesn't work "i" (0x0000000000FFFFFFLL) // %1 (a.k.a. _const4)
"0" (width), // ecx
"rim" (_const4) // %1(?) (0x0000000000FFFFFFLL)
#if 0 /* %mm0, ..., %mm4 not supported by gcc 2.7.2.3 or egcs 1.1 */
: "%mm0", "%mm1", "%mm2" // clobber list
@@ -1811,7 +1817,8 @@ png_do_read_interlace(png_structp png_ptr)
: "1" (sptr), // esi // input regs
"2" (dp), // edi
"0" (width) // ecx
"0" (width), // ecx
"rim" (_const4) // (0x0000000000FFFFFFLL)
#if 0 /* %mm0, ..., %mm2 not supported by gcc 2.7.2.3 or egcs 1.1 */
: "%mm0", "%mm1", "%mm2" // clobber list
@@ -1865,7 +1872,9 @@ png_do_read_interlace(png_structp png_ptr)
: "1" (sptr), // esi // input regs
"2" (dp), // edi
"0" (width_mmx) // ecx
"0" (width_mmx), // ecx
"rim" (_const4), // 0x0000000000FFFFFFLL
"rim" (_const6) // 0x00000000000000FFLL
#if 0 /* %mm0, ..., %mm3 not supported by gcc 2.7.2.3 or egcs 1.1 */
: "%mm0", "%mm1" // clobber list
@@ -2727,8 +2736,8 @@ png_do_read_interlace(png_structp png_ptr)
} /* end switch (row_info->pixel_depth) */
row_info->width = final_width;
row_info->rowbytes = ((final_width *
(png_uint_32)row_info->pixel_depth + 7) >> 3);
row_info->rowbytes = PNG_ROWBYTES(row_info->pixel_depth,final_width);
}
} /* end png_do_read_interlace() */
@@ -4529,8 +4538,7 @@ png_read_filter_row_mmx_sub(png_row_infop row_info, png_bytep row)
: "0" (bpp), // eax // input regs
"1" (row) // edi
: "%ebx", "%ecx", "%edx" // clobber list
, "%esi"
: "%esi", "%ecx", "%edx" // clobber list
#if 0 /* MMX regs (%mm0, etc.) not supported by gcc 2.7.2.3 or egcs 1.1 */
, "%mm0", "%mm1", "%mm2", "%mm3"
@@ -5034,7 +5042,10 @@ png_read_filter_row_mmx_up(png_row_infop row_info, png_bytep row,
"1" (prev_row), // esi
"2" (row) // edi
: "%eax", "%ebx", "%ecx" // clobber list (no input regs!)
: "%eax", "%ecx" // clobber list (no input regs!)
#ifndef __PIC__
, "%ebx"
#endif
#if 0 /* MMX regs (%mm0, etc.) not supported by gcc 2.7.2.3 or egcs 1.1 */
, "%mm0", "%mm1", "%mm2", "%mm3"