mirror of
https://git.code.sf.net/p/libpng/code.git
synced 2025-07-10 18:04:09 +02:00
Imported from libpng-1.0.8beta1.tar
This commit is contained in:
Glenn Randers-Pehrson
549
pnggccrd.c
549
pnggccrd.c
@@ -6,7 +6,7 @@
|
||||
* and http://www.intel.com/drg/pentiumII/appnotes/923/923.htm
|
||||
* for Intel's performance analysis of the MMX vs. non-MMX code.
|
||||
*
|
||||
* libpng 1.0.7 - July 1, 2000
|
||||
* libpng version 1.0.8beta1 - July 8, 2000
|
||||
* For conditions of distribution and use, see copyright notice in png.h
|
||||
* Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson
|
||||
* Copyright (c) 1998, Intel Corporation
|
||||
@@ -122,11 +122,33 @@
|
||||
* - fixed up both versions of mmxsupport() (ORIG_THAT_USED_TO_CLOBBER_EBX
|
||||
* macro determines which is used); original not yet tested.
|
||||
*
|
||||
* 20000213:
|
||||
* - When compiling with gcc, be sure to use -fomit-frame-pointer
|
||||
*
|
||||
* 20000319:
|
||||
* - fixed a register-name typo in png_do_read_interlace(), default (MMX) case,
|
||||
* pass == 4 or 5, that caused visible corruption of interlaced images
|
||||
*
|
||||
* - When compiling with gcc, be sure to use -fomit-frame-pointer
|
||||
* 20000623:
|
||||
* - Various problems were reported with gcc 2.95.2 in the Cygwin environment,
|
||||
* many of the form "forbidden register 0 (ax) was spilled for class AREG."
|
||||
* This is explained at http://gcc.gnu.org/fom_serv/cache/23.html, and
|
||||
* Chuck Wilson supplied a patch involving dummy output registers. See
|
||||
* http://sourceforge.net/bugs/?func=detailbug&bug_id=108741&group_id=5624
|
||||
* for the original (anonymous) SourceForge bug report.
|
||||
*
|
||||
* 20000706:
|
||||
* - Chuck Wilson passed along these remaining gcc 2.95.2 errors:
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||||
* pnggccrd.c: In function `png_combine_row':
|
||||
* pnggccrd.c:525: more than 10 operands in `asm'
|
||||
* pnggccrd.c:669: more than 10 operands in `asm'
|
||||
* pnggccrd.c:828: more than 10 operands in `asm'
|
||||
* pnggccrd.c:994: more than 10 operands in `asm'
|
||||
* pnggccrd.c:1177: more than 10 operands in `asm'
|
||||
* They are all the same problem and can be worked around by using the
|
||||
* global _unmask variable unconditionally, not just in the -fPIC case.
|
||||
* Apparently earlier versions of gcc also have the problem with more than
|
||||
* 10 operands; they just don't report it. Much strangeness ensues, etc.
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||||
*/
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||||
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||||
#define PNG_INTERNAL
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||||
@@ -174,9 +196,13 @@ static const int png_pass_width[7] = {8, 4, 4, 2, 2, 1, 1};
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||||
/* These constants are used in the inlined MMX assembly code.
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||||
Ignore gcc's "At top level: defined but not used" warnings. */
|
||||
|
||||
#ifdef __PIC__
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||||
static int _unmask; // not enough regs when compiling with -fPIC, so...
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||||
#endif
|
||||
/* GRR 20000706: originally _unmask was needed only when compiling with -fPIC,
|
||||
* since that case uses the %ebx register for indexing the Global Offset Table
|
||||
* and there were no other registers available. But gcc 2.95 and later emit
|
||||
* "more than 10 operands in `asm'" errors when %ebx is used to preload unmask
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||||
* in the non-PIC case, so we'll just use the global unconditionally now.
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||||
*/
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static int _unmask;
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||||
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static unsigned long long _mask8_0 = 0x0102040810204080LL;
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||||
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||||
@@ -430,23 +456,19 @@ fflush(stderr);
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||||
{
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||||
png_uint_32 len;
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||||
int diff;
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||||
#ifndef __PIC__
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||||
int unmask = ~mask;
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||||
#else
|
||||
int dummy_value_a; // fix 'forbidden register spilled' error
|
||||
int dummy_value_d;
|
||||
int dummy_value_c;
|
||||
int dummy_value_S;
|
||||
int dummy_value_D;
|
||||
_unmask = ~mask; // global variable for -fPIC version
|
||||
#endif
|
||||
srcptr = png_ptr->row_buf + 1;
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||||
dstptr = row;
|
||||
len = png_ptr->width &~7; // reduce to multiple of 8
|
||||
diff = png_ptr->width & 7; // amount lost
|
||||
|
||||
__asm__ (
|
||||
#ifdef __PIC__
|
||||
__asm__ __volatile__ (
|
||||
"movd _unmask, %%mm7 \n\t" // load bit pattern
|
||||
#else
|
||||
// preload "movd unmask, %%mm7 \n\t" // (unmask is in ebx)
|
||||
"movd %%ebx, %%mm7 \n\t" // load bit pattern (unmask)
|
||||
#endif
|
||||
"psubb %%mm6, %%mm6 \n\t" // zero mm6
|
||||
"punpcklbw %%mm7, %%mm7 \n\t"
|
||||
"punpcklwd %%mm7, %%mm7 \n\t"
|
||||
@@ -498,21 +520,22 @@ fflush(stderr);
|
||||
"end8: \n\t"
|
||||
"EMMS \n\t" // DONE
|
||||
|
||||
: // output regs (none)
|
||||
: "=a" (dummy_value_a), // output regs (dummy)
|
||||
"=d" (dummy_value_d),
|
||||
"=c" (dummy_value_c),
|
||||
"=S" (dummy_value_S),
|
||||
"=D" (dummy_value_D)
|
||||
|
||||
: "S" (srcptr), // esi // input regs
|
||||
"D" (dstptr), // edi
|
||||
"a" (diff), // eax
|
||||
#ifndef __PIC__
|
||||
"b" (unmask), // ebx // Global Offset Table idx
|
||||
#endif
|
||||
"c" (len), // ecx
|
||||
"d" (mask) // edx
|
||||
: "3" (srcptr), // esi // input regs
|
||||
"4" (dstptr), // edi
|
||||
"0" (diff), // eax
|
||||
// was (unmask) "b" RESERVED // ebx // Global Offset Table idx
|
||||
"2" (len), // ecx
|
||||
"1" (mask) // edx
|
||||
|
||||
: "%esi", "%edi", "%eax", // clobber list
|
||||
"%ecx", "%edx"
|
||||
// : // clobber list
|
||||
#if 0 /* MMX regs (%mm0, etc.) not supported by gcc 2.7.2.3 or egcs 1.1 */
|
||||
, "%mm0", "%mm4", "%mm6", "%mm7"
|
||||
: "%mm0", "%mm4", "%mm6", "%mm7"
|
||||
#endif
|
||||
);
|
||||
}
|
||||
@@ -550,23 +573,19 @@ fflush(stderr);
|
||||
{
|
||||
png_uint_32 len;
|
||||
int diff;
|
||||
#ifndef __PIC__
|
||||
int unmask = ~mask;
|
||||
#else
|
||||
int dummy_value_a; // fix 'forbidden register spilled' error
|
||||
int dummy_value_d;
|
||||
int dummy_value_c;
|
||||
int dummy_value_S;
|
||||
int dummy_value_D;
|
||||
_unmask = ~mask; // global variable for -fPIC version
|
||||
#endif
|
||||
srcptr = png_ptr->row_buf + 1;
|
||||
dstptr = row;
|
||||
len = png_ptr->width &~7; // reduce to multiple of 8
|
||||
diff = png_ptr->width & 7; // amount lost
|
||||
|
||||
__asm__ (
|
||||
#ifdef __PIC__
|
||||
__asm__ __volatile__ (
|
||||
"movd _unmask, %%mm7 \n\t" // load bit pattern
|
||||
#else
|
||||
// preload "movd unmask, %%mm7 \n\t" // (unmask is in ebx)
|
||||
"movd %%ebx, %%mm7 \n\t" // load bit pattern (unmask)
|
||||
#endif
|
||||
"psubb %%mm6, %%mm6 \n\t" // zero mm6
|
||||
"punpcklbw %%mm7, %%mm7 \n\t"
|
||||
"punpcklwd %%mm7, %%mm7 \n\t"
|
||||
@@ -633,21 +652,22 @@ fflush(stderr);
|
||||
"end16: \n\t"
|
||||
"EMMS \n\t" // DONE
|
||||
|
||||
: // output regs (none)
|
||||
: "=a" (dummy_value_a), // output regs (dummy)
|
||||
"=d" (dummy_value_d),
|
||||
"=c" (dummy_value_c),
|
||||
"=S" (dummy_value_S),
|
||||
"=D" (dummy_value_D)
|
||||
|
||||
: "S" (srcptr), // esi // input regs
|
||||
"D" (dstptr), // edi
|
||||
"a" (diff), // eax
|
||||
#ifndef __PIC__
|
||||
"b" (unmask), // ebx // Global Offset Table idx
|
||||
#endif
|
||||
"c" (len), // ecx
|
||||
"d" (mask) // edx
|
||||
: "3" (srcptr), // esi // input regs
|
||||
"4" (dstptr), // edi
|
||||
"0" (diff), // eax
|
||||
// was (unmask) "b" RESERVED // ebx // Global Offset Table idx
|
||||
"2" (len), // ecx
|
||||
"1" (mask) // edx
|
||||
|
||||
: "%esi", "%edi", "%eax", // clobber list
|
||||
"%ecx", "%edx"
|
||||
// : // clobber list
|
||||
#if 0 /* MMX regs (%mm0, etc.) not supported by gcc 2.7.2.3 or egcs 1.1 */
|
||||
, "%mm0", "%mm1",
|
||||
: "%mm0", "%mm1",
|
||||
"%mm4", "%mm5", "%mm6", "%mm7"
|
||||
#endif
|
||||
);
|
||||
@@ -686,23 +706,19 @@ fflush(stderr);
|
||||
{
|
||||
png_uint_32 len;
|
||||
int diff;
|
||||
#ifndef __PIC__
|
||||
int unmask = ~mask;
|
||||
#else
|
||||
int dummy_value_a; // fix 'forbidden register spilled' error
|
||||
int dummy_value_d;
|
||||
int dummy_value_c;
|
||||
int dummy_value_S;
|
||||
int dummy_value_D;
|
||||
_unmask = ~mask; // global variable for -fPIC version
|
||||
#endif
|
||||
srcptr = png_ptr->row_buf + 1;
|
||||
dstptr = row;
|
||||
len = png_ptr->width &~7; // reduce to multiple of 8
|
||||
diff = png_ptr->width & 7; // amount lost
|
||||
|
||||
__asm__ (
|
||||
#ifdef __PIC__
|
||||
__asm__ __volatile__ (
|
||||
"movd _unmask, %%mm7 \n\t" // load bit pattern
|
||||
#else
|
||||
// preload "movd unmask, %%mm7 \n\t" // (unmask is in ebx)
|
||||
"movd %%ebx, %%mm7 \n\t" // load bit pattern (unmask)
|
||||
#endif
|
||||
"psubb %%mm6, %%mm6 \n\t" // zero mm6
|
||||
"punpcklbw %%mm7, %%mm7 \n\t"
|
||||
"punpcklwd %%mm7, %%mm7 \n\t"
|
||||
@@ -784,21 +800,22 @@ fflush(stderr);
|
||||
"end24: \n\t"
|
||||
"EMMS \n\t" // DONE
|
||||
|
||||
: // output regs (none)
|
||||
: "=a" (dummy_value_a), // output regs (dummy)
|
||||
"=d" (dummy_value_d),
|
||||
"=c" (dummy_value_c),
|
||||
"=S" (dummy_value_S),
|
||||
"=D" (dummy_value_D)
|
||||
|
||||
: "S" (srcptr), // esi // input regs
|
||||
"D" (dstptr), // edi
|
||||
"a" (diff), // eax
|
||||
#ifndef __PIC__
|
||||
"b" (unmask), // ebx // Global Offset Table idx
|
||||
#endif
|
||||
"c" (len), // ecx
|
||||
"d" (mask) // edx
|
||||
: "3" (srcptr), // esi // input regs
|
||||
"4" (dstptr), // edi
|
||||
"0" (diff), // eax
|
||||
// was (unmask) "b" RESERVED // ebx // Global Offset Table idx
|
||||
"2" (len), // ecx
|
||||
"1" (mask) // edx
|
||||
|
||||
: "%esi", "%edi", "%eax", // clobber list
|
||||
"%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",
|
||||
: "%mm0", "%mm1", "%mm2",
|
||||
"%mm4", "%mm5", "%mm6", "%mm7"
|
||||
#endif
|
||||
);
|
||||
@@ -837,23 +854,19 @@ fflush(stderr);
|
||||
{
|
||||
png_uint_32 len;
|
||||
int diff;
|
||||
#ifndef __PIC__
|
||||
int unmask = ~mask;
|
||||
#else
|
||||
int dummy_value_a; // fix 'forbidden register spilled' error
|
||||
int dummy_value_d;
|
||||
int dummy_value_c;
|
||||
int dummy_value_S;
|
||||
int dummy_value_D;
|
||||
_unmask = ~mask; // global variable for -fPIC version
|
||||
#endif
|
||||
srcptr = png_ptr->row_buf + 1;
|
||||
dstptr = row;
|
||||
len = png_ptr->width &~7; // reduce to multiple of 8
|
||||
diff = png_ptr->width & 7; // amount lost
|
||||
|
||||
__asm__ (
|
||||
#ifdef __PIC__
|
||||
__asm__ __volatile__ (
|
||||
"movd _unmask, %%mm7 \n\t" // load bit pattern
|
||||
#else
|
||||
// preload "movd unmask, %%mm7 \n\t" // (unmask is in ebx)
|
||||
"movd %%ebx, %%mm7 \n\t" // load bit pattern (unmask)
|
||||
#endif
|
||||
"psubb %%mm6, %%mm6 \n\t" // zero mm6
|
||||
"punpcklbw %%mm7, %%mm7 \n\t"
|
||||
"punpcklwd %%mm7, %%mm7 \n\t"
|
||||
@@ -942,21 +955,22 @@ fflush(stderr);
|
||||
"end32: \n\t"
|
||||
"EMMS \n\t" // DONE
|
||||
|
||||
: // output regs (none)
|
||||
: "=a" (dummy_value_a), // output regs (dummy)
|
||||
"=d" (dummy_value_d),
|
||||
"=c" (dummy_value_c),
|
||||
"=S" (dummy_value_S),
|
||||
"=D" (dummy_value_D)
|
||||
|
||||
: "S" (srcptr), // esi // input regs
|
||||
"D" (dstptr), // edi
|
||||
"a" (diff), // eax
|
||||
#ifndef __PIC__
|
||||
"b" (unmask), // ebx // Global Offset Table idx
|
||||
#endif
|
||||
"c" (len), // ecx
|
||||
"d" (mask) // edx
|
||||
: "3" (srcptr), // esi // input regs
|
||||
"4" (dstptr), // edi
|
||||
"0" (diff), // eax
|
||||
// was (unmask) "b" RESERVED // ebx // Global Offset Table idx
|
||||
"2" (len), // ecx
|
||||
"1" (mask) // edx
|
||||
|
||||
: "%esi", "%edi", "%eax", // clobber list
|
||||
"%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",
|
||||
: "%mm0", "%mm1", "%mm2", "%mm3",
|
||||
"%mm4", "%mm5", "%mm6", "%mm7"
|
||||
#endif
|
||||
);
|
||||
@@ -995,23 +1009,19 @@ fflush(stderr);
|
||||
{
|
||||
png_uint_32 len;
|
||||
int diff;
|
||||
#ifndef __PIC__
|
||||
int unmask = ~mask;
|
||||
#else
|
||||
int dummy_value_a; // fix 'forbidden register spilled' error
|
||||
int dummy_value_d;
|
||||
int dummy_value_c;
|
||||
int dummy_value_S;
|
||||
int dummy_value_D;
|
||||
_unmask = ~mask; // global variable for -fPIC version
|
||||
#endif
|
||||
srcptr = png_ptr->row_buf + 1;
|
||||
dstptr = row;
|
||||
len = png_ptr->width &~7; // reduce to multiple of 8
|
||||
diff = png_ptr->width & 7; // amount lost
|
||||
|
||||
__asm__ (
|
||||
#ifdef __PIC__
|
||||
__asm__ __volatile__ (
|
||||
"movd _unmask, %%mm7 \n\t" // load bit pattern
|
||||
#else
|
||||
// preload "movd unmask, %%mm7 \n\t" // (unmask is in ebx)
|
||||
"movd %%ebx, %%mm7 \n\t" // load bit pattern (unmask)
|
||||
#endif
|
||||
"psubb %%mm6, %%mm6 \n\t" // zero mm6
|
||||
"punpcklbw %%mm7, %%mm7 \n\t"
|
||||
"punpcklwd %%mm7, %%mm7 \n\t"
|
||||
@@ -1117,21 +1127,22 @@ fflush(stderr);
|
||||
"end48: \n\t"
|
||||
"EMMS \n\t" // DONE
|
||||
|
||||
: // output regs (none)
|
||||
: "=a" (dummy_value_a), // output regs (dummy)
|
||||
"=d" (dummy_value_d),
|
||||
"=c" (dummy_value_c),
|
||||
"=S" (dummy_value_S),
|
||||
"=D" (dummy_value_D)
|
||||
|
||||
: "S" (srcptr), // esi // input regs
|
||||
"D" (dstptr), // edi
|
||||
"a" (diff), // eax
|
||||
#ifndef __PIC__
|
||||
"b" (unmask), // ebx // Global Offset Table idx
|
||||
#endif
|
||||
"c" (len), // ecx
|
||||
"d" (mask) // edx
|
||||
: "3" (srcptr), // esi // input regs
|
||||
"4" (dstptr), // edi
|
||||
"0" (diff), // eax
|
||||
// was (unmask) "b" RESERVED // ebx // Global Offset Table idx
|
||||
"2" (len), // ecx
|
||||
"1" (mask) // edx
|
||||
|
||||
: "%esi", "%edi", "%eax", // clobber list
|
||||
"%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",
|
||||
: "%mm0", "%mm1", "%mm2", "%mm3",
|
||||
"%mm4", "%mm5", "%mm6", "%mm7"
|
||||
#endif
|
||||
);
|
||||
@@ -1453,7 +1464,10 @@ fflush(stderr);
|
||||
{
|
||||
if (((pass == 0) || (pass == 1)) && width)
|
||||
{
|
||||
__asm__ (
|
||||
int dummy_value_c; // fix 'forbidden register spilled'
|
||||
int dummy_value_S;
|
||||
int dummy_value_D;
|
||||
__asm__ __volatile__ (
|
||||
"subl $21, %%edi \n\t"
|
||||
// (png_pass_inc[pass] - 1)*pixel_bytes
|
||||
|
||||
@@ -1482,22 +1496,27 @@ fflush(stderr);
|
||||
"jnz .loop3_pass0 \n\t"
|
||||
"EMMS \n\t" // DONE
|
||||
|
||||
: // output regs (none)
|
||||
: "=c" (dummy_value_c), // output regs (dummy)
|
||||
"=S" (dummy_value_S),
|
||||
"=D" (dummy_value_D)
|
||||
|
||||
: "S" (sptr), // esi // input regs
|
||||
"D" (dp), // edi
|
||||
"c" (width) // ecx
|
||||
: "1" (sptr), // esi // input regs
|
||||
"2" (dp), // edi
|
||||
"0" (width) // ecx
|
||||
// doesn't work "i" (0x0000000000FFFFFFLL) // %1 (a.k.a. _const4)
|
||||
|
||||
: "%esi", "%edi", "%ecx" // clobber list
|
||||
// : // clobber list
|
||||
#if 0 /* %mm0, ..., %mm4 not supported by gcc 2.7.2.3 or egcs 1.1 */
|
||||
, "%mm0", "%mm1", "%mm2", "%mm3", "%mm4"
|
||||
: "%mm0", "%mm1", "%mm2", "%mm3", "%mm4"
|
||||
#endif
|
||||
);
|
||||
}
|
||||
else if (((pass == 2) || (pass == 3)) && width)
|
||||
{
|
||||
__asm__ (
|
||||
int dummy_value_c; // fix 'forbidden register spilled'
|
||||
int dummy_value_S;
|
||||
int dummy_value_D;
|
||||
__asm__ __volatile__ (
|
||||
"subl $9, %%edi \n\t"
|
||||
// (png_pass_inc[pass] - 1)*pixel_bytes
|
||||
|
||||
@@ -1520,15 +1539,17 @@ fflush(stderr);
|
||||
"jnz .loop3_pass2 \n\t"
|
||||
"EMMS \n\t" // DONE
|
||||
|
||||
: // output regs (none)
|
||||
: "=c" (dummy_value_c), // output regs (dummy)
|
||||
"=S" (dummy_value_S),
|
||||
"=D" (dummy_value_D)
|
||||
|
||||
: "S" (sptr), // esi // input regs
|
||||
"D" (dp), // edi
|
||||
"c" (width) // ecx
|
||||
: "1" (sptr), // esi // input regs
|
||||
"2" (dp), // edi
|
||||
"0" (width) // ecx
|
||||
|
||||
: "%esi", "%edi", "%ecx" // clobber list
|
||||
// : // clobber list
|
||||
#if 0 /* %mm0, ..., %mm2 not supported by gcc 2.7.2.3 or egcs 1.1 */
|
||||
, "%mm0", "%mm1", "%mm2"
|
||||
: "%mm0", "%mm1", "%mm2"
|
||||
#endif
|
||||
);
|
||||
}
|
||||
@@ -1543,7 +1564,10 @@ fflush(stderr);
|
||||
// png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1};
|
||||
// sptr points at last pixel in pre-expanded row
|
||||
// dp points at last pixel position in expanded row
|
||||
__asm__ (
|
||||
int dummy_value_c; // fix 'forbidden register spilled'
|
||||
int dummy_value_S;
|
||||
int dummy_value_D;
|
||||
__asm__ __volatile__ (
|
||||
"subl $3, %%esi \n\t"
|
||||
"subl $9, %%edi \n\t"
|
||||
// (png_pass_inc[pass] + 1)*pixel_bytes
|
||||
@@ -1569,15 +1593,17 @@ fflush(stderr);
|
||||
"jnz .loop3_pass4 \n\t"
|
||||
"EMMS \n\t" // DONE
|
||||
|
||||
: // output regs (none)
|
||||
: "=c" (dummy_value_c), // output regs (dummy)
|
||||
"=S" (dummy_value_S),
|
||||
"=D" (dummy_value_D)
|
||||
|
||||
: "S" (sptr), // esi // input regs
|
||||
"D" (dp), // edi
|
||||
"c" (width_mmx) // ecx
|
||||
: "1" (sptr), // esi // input regs
|
||||
"2" (dp), // edi
|
||||
"0" (width_mmx) // ecx
|
||||
|
||||
: "%esi", "%edi", "%ecx" // clobber list
|
||||
// : // clobber list
|
||||
#if 0 /* %mm0, ..., %mm3 not supported by gcc 2.7.2.3 or egcs 1.1 */
|
||||
, "%mm0", "%mm1", "%mm2", "%mm3"
|
||||
: "%mm0", "%mm1", "%mm2", "%mm3"
|
||||
#endif
|
||||
);
|
||||
}
|
||||
@@ -1609,7 +1635,10 @@ fflush(stderr);
|
||||
width -= width_mmx; // 0-3 pixels => 0-3 bytes
|
||||
if (width_mmx)
|
||||
{
|
||||
__asm__ (
|
||||
int dummy_value_c; // fix 'forbidden register spilled'
|
||||
int dummy_value_S;
|
||||
int dummy_value_D;
|
||||
__asm__ __volatile__ (
|
||||
"subl $3, %%esi \n\t"
|
||||
"subl $31, %%edi \n\t"
|
||||
|
||||
@@ -1636,15 +1665,17 @@ fflush(stderr);
|
||||
"jnz .loop1_pass0 \n\t"
|
||||
"EMMS \n\t" // DONE
|
||||
|
||||
: // output regs (none)
|
||||
: "=c" (dummy_value_c), // output regs (dummy)
|
||||
"=S" (dummy_value_S),
|
||||
"=D" (dummy_value_D)
|
||||
|
||||
: "S" (sptr), // esi // input regs
|
||||
"D" (dp), // edi
|
||||
"c" (width_mmx) // ecx
|
||||
: "1" (sptr), // esi // input regs
|
||||
"2" (dp), // edi
|
||||
"0" (width_mmx) // ecx
|
||||
|
||||
: "%esi", "%edi", "%ecx" // clobber list
|
||||
// : // clobber list
|
||||
#if 0 /* %mm0, ..., %mm4 not supported by gcc 2.7.2.3 or egcs 1.1 */
|
||||
, "%mm0", "%mm1", "%mm2", "%mm3", "%mm4"
|
||||
: "%mm0", "%mm1", "%mm2", "%mm3", "%mm4"
|
||||
#endif
|
||||
);
|
||||
}
|
||||
@@ -1684,7 +1715,10 @@ fflush(stderr);
|
||||
width -= width_mmx; // 0-3 pixels => 0-3 bytes
|
||||
if (width_mmx)
|
||||
{
|
||||
__asm__ (
|
||||
int dummy_value_c; // fix 'forbidden register spilled'
|
||||
int dummy_value_S;
|
||||
int dummy_value_D;
|
||||
__asm__ __volatile__ (
|
||||
"subl $3, %%esi \n\t"
|
||||
"subl $15, %%edi \n\t"
|
||||
|
||||
@@ -1702,15 +1736,17 @@ fflush(stderr);
|
||||
"jnz .loop1_pass2 \n\t"
|
||||
"EMMS \n\t" // DONE
|
||||
|
||||
: // output regs (none)
|
||||
: "=c" (dummy_value_c), // output regs (dummy)
|
||||
"=S" (dummy_value_S),
|
||||
"=D" (dummy_value_D)
|
||||
|
||||
: "S" (sptr), // esi // input regs
|
||||
"D" (dp), // edi
|
||||
"c" (width_mmx) // ecx
|
||||
: "1" (sptr), // esi // input regs
|
||||
"2" (dp), // edi
|
||||
"0" (width_mmx) // ecx
|
||||
|
||||
: "%esi", "%edi", "%ecx" // clobber list
|
||||
// : // clobber list
|
||||
#if 0 /* %mm0, %mm1 not supported by gcc 2.7.2.3 or egcs 1.1 */
|
||||
, "%mm0", "%mm1"
|
||||
: "%mm0", "%mm1"
|
||||
#endif
|
||||
);
|
||||
}
|
||||
@@ -1732,7 +1768,10 @@ fflush(stderr);
|
||||
width -= width_mmx; // 0-3 pixels => 0-3 bytes
|
||||
if (width_mmx)
|
||||
{
|
||||
__asm__ (
|
||||
int dummy_value_c; // fix 'forbidden register spilled'
|
||||
int dummy_value_S;
|
||||
int dummy_value_D;
|
||||
__asm__ __volatile__ (
|
||||
"subl $7, %%esi \n\t"
|
||||
"subl $15, %%edi \n\t"
|
||||
|
||||
@@ -1749,15 +1788,17 @@ fflush(stderr);
|
||||
"jnz .loop1_pass4 \n\t"
|
||||
"EMMS \n\t" // DONE
|
||||
|
||||
: // output regs (none)
|
||||
: "=c" (dummy_value_c), // output regs (none)
|
||||
"=S" (dummy_value_S),
|
||||
"=D" (dummy_value_D)
|
||||
|
||||
: "S" (sptr), // esi // input regs
|
||||
"D" (dp), // edi
|
||||
"c" (width_mmx) // ecx
|
||||
: "1" (sptr), // esi // input regs
|
||||
"2" (dp), // edi
|
||||
"0" (width_mmx) // ecx
|
||||
|
||||
: "%esi", "%edi", "%ecx" // clobber list
|
||||
// : // clobber list
|
||||
#if 0 /* %mm0, %mm1 not supported by gcc 2.7.2.3 or egcs 1.1 */
|
||||
, "%mm0", "%mm1"
|
||||
: "%mm0", "%mm1"
|
||||
#endif
|
||||
);
|
||||
}
|
||||
@@ -1784,7 +1825,10 @@ fflush(stderr);
|
||||
width -= width_mmx; // 0,1 pixels => 0,2 bytes
|
||||
if (width_mmx)
|
||||
{
|
||||
__asm__ (
|
||||
int dummy_value_c; // fix 'forbidden register spilled'
|
||||
int dummy_value_S;
|
||||
int dummy_value_D;
|
||||
__asm__ __volatile__ (
|
||||
"subl $2, %%esi \n\t"
|
||||
"subl $30, %%edi \n\t"
|
||||
|
||||
@@ -1804,15 +1848,17 @@ fflush(stderr);
|
||||
"jnz .loop2_pass0 \n\t"
|
||||
"EMMS \n\t" // DONE
|
||||
|
||||
: // output regs (none)
|
||||
: "=c" (dummy_value_c), // output regs (dummy)
|
||||
"=S" (dummy_value_S),
|
||||
"=D" (dummy_value_D)
|
||||
|
||||
: "S" (sptr), // esi // input regs
|
||||
"D" (dp), // edi
|
||||
"c" (width_mmx) // ecx
|
||||
: "1" (sptr), // esi // input regs
|
||||
"2" (dp), // edi
|
||||
"0" (width_mmx) // ecx
|
||||
|
||||
: "%esi", "%edi", "%ecx" // clobber list
|
||||
// : // clobber list
|
||||
#if 0 /* %mm0, %mm1 not supported by gcc 2.7.2.3 or egcs 1.1 */
|
||||
, "%mm0", "%mm1"
|
||||
: "%mm0", "%mm1"
|
||||
#endif
|
||||
);
|
||||
}
|
||||
@@ -1838,7 +1884,10 @@ fflush(stderr);
|
||||
width -= width_mmx; // 0,1 pixels => 0,2 bytes
|
||||
if (width_mmx)
|
||||
{
|
||||
__asm__ (
|
||||
int dummy_value_c; // fix 'forbidden register spilled'
|
||||
int dummy_value_S;
|
||||
int dummy_value_D;
|
||||
__asm__ __volatile__ (
|
||||
"subl $2, %%esi \n\t"
|
||||
"subl $14, %%edi \n\t"
|
||||
|
||||
@@ -1856,15 +1905,17 @@ fflush(stderr);
|
||||
"jnz .loop2_pass2 \n\t"
|
||||
"EMMS \n\t" // DONE
|
||||
|
||||
: // output regs (none)
|
||||
: "=c" (dummy_value_c), // output regs (dummy)
|
||||
"=S" (dummy_value_S),
|
||||
"=D" (dummy_value_D)
|
||||
|
||||
: "S" (sptr), // esi // input regs
|
||||
"D" (dp), // edi
|
||||
"c" (width_mmx) // ecx
|
||||
: "1" (sptr), // esi // input regs
|
||||
"2" (dp), // edi
|
||||
"0" (width_mmx) // ecx
|
||||
|
||||
: "%esi", "%edi", "%ecx" // clobber list
|
||||
// : // clobber list
|
||||
#if 0 /* %mm0, %mm1 not supported by gcc 2.7.2.3 or egcs 1.1 */
|
||||
, "%mm0", "%mm1"
|
||||
: "%mm0", "%mm1"
|
||||
#endif
|
||||
);
|
||||
}
|
||||
@@ -1890,7 +1941,10 @@ fflush(stderr);
|
||||
width -= width_mmx; // 0,1 pixels => 0,2 bytes
|
||||
if (width_mmx)
|
||||
{
|
||||
__asm__ (
|
||||
int dummy_value_c; // fix 'forbidden register spilled'
|
||||
int dummy_value_S;
|
||||
int dummy_value_D;
|
||||
__asm__ __volatile__ (
|
||||
"subl $2, %%esi \n\t"
|
||||
"subl $6, %%edi \n\t"
|
||||
|
||||
@@ -1904,15 +1958,17 @@ fflush(stderr);
|
||||
"jnz .loop2_pass4 \n\t"
|
||||
"EMMS \n\t" // DONE
|
||||
|
||||
: // output regs (none)
|
||||
: "=c" (dummy_value_c), // output regs (dummy)
|
||||
"=S" (dummy_value_S),
|
||||
"=D" (dummy_value_D)
|
||||
|
||||
: "S" (sptr), // esi // input regs
|
||||
"D" (dp), // edi
|
||||
"c" (width_mmx) // ecx
|
||||
: "1" (sptr), // esi // input regs
|
||||
"2" (dp), // edi
|
||||
"0" (width_mmx) // ecx
|
||||
|
||||
: "%esi", "%edi", "%ecx" // clobber list
|
||||
// : // clobber list
|
||||
#if 0 /* %mm0 not supported by gcc 2.7.2.3 or egcs 1.1 */
|
||||
, "%mm0"
|
||||
: "%mm0"
|
||||
#endif
|
||||
);
|
||||
}
|
||||
@@ -1948,12 +2004,15 @@ fflush(stderr);
|
||||
*/
|
||||
if (width_mmx)
|
||||
{
|
||||
int dummy_value_c; // fix 'forbidden register spilled'
|
||||
int dummy_value_S;
|
||||
int dummy_value_D;
|
||||
#ifdef GRR_DEBUG
|
||||
FILE *junk = fopen("junk.4bytes", "wb");
|
||||
if (junk)
|
||||
fclose(junk);
|
||||
#endif /* GRR_DEBUG */
|
||||
__asm__ (
|
||||
__asm__ __volatile__ (
|
||||
"subl $4, %%esi \n\t"
|
||||
"subl $60, %%edi \n\t"
|
||||
|
||||
@@ -1976,15 +2035,17 @@ fflush(stderr);
|
||||
"jnz .loop4_pass0 \n\t"
|
||||
"EMMS \n\t" // DONE
|
||||
|
||||
: // output regs (none)
|
||||
: "=c" (dummy_value_c), // output regs (dummy)
|
||||
"=S" (dummy_value_S),
|
||||
"=D" (dummy_value_D)
|
||||
|
||||
: "1" (sptr), // esi // input regs
|
||||
"2" (dp), // edi
|
||||
"0" (width_mmx) // ecx
|
||||
|
||||
: "S" (sptr), // esi // input regs
|
||||
"D" (dp), // edi
|
||||
"c" (width_mmx) // ecx
|
||||
|
||||
: "%esi", "%edi", "%ecx" // clobber list
|
||||
// : // clobber list
|
||||
#if 0 /* %mm0, %mm1 not supported by gcc 2.7.2.3 or egcs 1.1 */
|
||||
, "%mm0", "%mm1"
|
||||
: "%mm0", "%mm1"
|
||||
#endif
|
||||
);
|
||||
}
|
||||
@@ -2010,7 +2071,10 @@ fflush(stderr);
|
||||
width -= width_mmx; // 0,1 pixels => 0,4 bytes
|
||||
if (width_mmx)
|
||||
{
|
||||
__asm__ (
|
||||
int dummy_value_c; // fix 'forbidden register spilled'
|
||||
int dummy_value_S;
|
||||
int dummy_value_D;
|
||||
__asm__ __volatile__ (
|
||||
"subl $4, %%esi \n\t"
|
||||
"subl $28, %%edi \n\t"
|
||||
|
||||
@@ -2029,15 +2093,17 @@ fflush(stderr);
|
||||
"jnz .loop4_pass2 \n\t"
|
||||
"EMMS \n\t" // DONE
|
||||
|
||||
: // output regs (none)
|
||||
: "=c" (dummy_value_c), // output regs (dummy)
|
||||
"=S" (dummy_value_S),
|
||||
"=D" (dummy_value_D)
|
||||
|
||||
: "1" (sptr), // esi // input regs
|
||||
"2" (dp), // edi
|
||||
"0" (width_mmx) // ecx
|
||||
|
||||
: "S" (sptr), // esi // input regs
|
||||
"D" (dp), // edi
|
||||
"c" (width_mmx) // ecx
|
||||
|
||||
: "%esi", "%edi", "%ecx" // clobber list
|
||||
// : // clobber list
|
||||
#if 0 /* %mm0, %mm1 not supported by gcc 2.7.2.3 or egcs 1.1 */
|
||||
, "%mm0", "%mm1"
|
||||
: "%mm0", "%mm1"
|
||||
#endif
|
||||
);
|
||||
}
|
||||
@@ -2063,7 +2129,10 @@ fflush(stderr);
|
||||
width -= width_mmx; // 0,1 pixels => 0,4 bytes
|
||||
if (width_mmx)
|
||||
{
|
||||
__asm__ (
|
||||
int dummy_value_c; // fix 'forbidden register spilled'
|
||||
int dummy_value_S;
|
||||
int dummy_value_D;
|
||||
__asm__ __volatile__ (
|
||||
"subl $4, %%esi \n\t"
|
||||
"subl $12, %%edi \n\t"
|
||||
|
||||
@@ -2080,15 +2149,17 @@ fflush(stderr);
|
||||
"jnz .loop4_pass4 \n\t"
|
||||
"EMMS \n\t" // DONE
|
||||
|
||||
: // output regs (none)
|
||||
: "=c" (dummy_value_c), // output regs (dummy)
|
||||
"=S" (dummy_value_S),
|
||||
"=D" (dummy_value_D)
|
||||
|
||||
: "S" (sptr), // esi // input regs
|
||||
"D" (dp), // edi
|
||||
"c" (width_mmx) // ecx
|
||||
: "1" (sptr), // esi // input regs
|
||||
"2" (dp), // edi
|
||||
"0" (width_mmx) // ecx
|
||||
|
||||
: "%esi", "%edi", "%ecx" // clobber list
|
||||
// : // clobber list
|
||||
#if 0 /* %mm0, %mm1 not supported by gcc 2.7.2.3 or egcs 1.1 */
|
||||
, "%mm0", "%mm1"
|
||||
: "%mm0", "%mm1"
|
||||
#endif
|
||||
);
|
||||
}
|
||||
@@ -2122,12 +2193,15 @@ fflush(stderr);
|
||||
{
|
||||
// source is 8-byte RRGGBBAA
|
||||
// dest is 64-byte RRGGBBAA RRGGBBAA RRGGBBAA RRGGBBAA ...
|
||||
int dummy_value_c; // fix 'forbidden register spilled'
|
||||
int dummy_value_S;
|
||||
int dummy_value_D;
|
||||
#ifdef GRR_DEBUG
|
||||
FILE *junk = fopen("junk.8bytes", "wb");
|
||||
if (junk)
|
||||
fclose(junk);
|
||||
#endif /* GRR_DEBUG */
|
||||
__asm__ (
|
||||
__asm__ __volatile__ (
|
||||
"subl $56, %%edi \n\t" // start of last block
|
||||
|
||||
".loop8_pass0: \n\t"
|
||||
@@ -2146,15 +2220,17 @@ fflush(stderr);
|
||||
"jnz .loop8_pass0 \n\t"
|
||||
"EMMS \n\t" // DONE
|
||||
|
||||
: // output regs (none)
|
||||
: "=c" (dummy_value_c), // output regs (dummy)
|
||||
"=S" (dummy_value_S),
|
||||
"=D" (dummy_value_D)
|
||||
|
||||
: "S" (sptr), // esi // input regs
|
||||
"D" (dp), // edi
|
||||
"c" (width) // ecx
|
||||
: "1" (sptr), // esi // input regs
|
||||
"2" (dp), // edi
|
||||
"0" (width) // ecx
|
||||
|
||||
: "%esi", "%edi", "%ecx" // clobber list
|
||||
// : // clobber list
|
||||
#if 0 /* %mm0 not supported by gcc 2.7.2.3 or egcs 1.1 */
|
||||
, "%mm0"
|
||||
: "%mm0"
|
||||
#endif
|
||||
);
|
||||
}
|
||||
@@ -2166,7 +2242,10 @@ fflush(stderr);
|
||||
width -= width_mmx;
|
||||
if (width_mmx)
|
||||
{
|
||||
__asm__ (
|
||||
int dummy_value_c; // fix 'forbidden register spilled'
|
||||
int dummy_value_S;
|
||||
int dummy_value_D;
|
||||
__asm__ __volatile__ (
|
||||
"subl $24, %%edi \n\t" // start of last block
|
||||
|
||||
".loop8_pass2: \n\t"
|
||||
@@ -2181,15 +2260,17 @@ fflush(stderr);
|
||||
"jnz .loop8_pass2 \n\t"
|
||||
"EMMS \n\t" // DONE
|
||||
|
||||
: // output regs (none)
|
||||
: "=c" (dummy_value_c), // output regs (dummy)
|
||||
"=S" (dummy_value_S),
|
||||
"=D" (dummy_value_D)
|
||||
|
||||
: "S" (sptr), // esi // input regs
|
||||
"D" (dp), // edi
|
||||
"c" (width) // ecx
|
||||
: "1" (sptr), // esi // input regs
|
||||
"2" (dp), // edi
|
||||
"0" (width) // ecx
|
||||
|
||||
: "%esi", "%edi", "%ecx" // clobber list
|
||||
// : // clobber list
|
||||
#if 0 /* %mm0 not supported by gcc 2.7.2.3 or egcs 1.1 */
|
||||
, "%mm0"
|
||||
: "%mm0"
|
||||
#endif
|
||||
);
|
||||
}
|
||||
@@ -2202,7 +2283,10 @@ fflush(stderr);
|
||||
width -= width_mmx;
|
||||
if (width_mmx)
|
||||
{
|
||||
__asm__ (
|
||||
int dummy_value_c; // fix 'forbidden register spilled'
|
||||
int dummy_value_S;
|
||||
int dummy_value_D;
|
||||
__asm__ __volatile__ (
|
||||
"subl $8, %%edi \n\t" // start of last block
|
||||
|
||||
".loop8_pass4: \n\t"
|
||||
@@ -2215,15 +2299,17 @@ fflush(stderr);
|
||||
"jnz .loop8_pass4 \n\t"
|
||||
"EMMS \n\t" // DONE
|
||||
|
||||
: // output regs (none)
|
||||
: "=c" (dummy_value_c), // output regs (dummy)
|
||||
"=S" (dummy_value_S),
|
||||
"=D" (dummy_value_D)
|
||||
|
||||
: "S" (sptr), // esi // input regs
|
||||
"D" (dp), // edi
|
||||
"c" (width) // ecx
|
||||
: "1" (sptr), // esi // input regs
|
||||
"2" (dp), // edi
|
||||
"0" (width) // ecx
|
||||
|
||||
: "%esi", "%edi", "%ecx" // clobber list
|
||||
// : // clobber list
|
||||
#if 0 /* %mm0 not supported by gcc 2.7.2.3 or egcs 1.1 */
|
||||
, "%mm0"
|
||||
: "%mm0"
|
||||
#endif
|
||||
);
|
||||
}
|
||||
@@ -2408,11 +2494,14 @@ png_read_filter_row_mmx_avg(png_row_infop row_info, png_bytep row,
|
||||
png_bytep prev_row)
|
||||
{
|
||||
int bpp;
|
||||
int dummy_value_c; // fix 'forbidden register 2 (cx) was spilled' error
|
||||
int dummy_value_S;
|
||||
int dummy_value_D;
|
||||
// int diff; GRR: global now (shortened to dif/_dif)
|
||||
|
||||
bpp = (row_info->pixel_depth + 7) >> 3; // Get # bytes per pixel
|
||||
_FullLength = row_info->rowbytes; // # of bytes to filter
|
||||
__asm__ (
|
||||
__asm__ __volatile__ (
|
||||
// Init address pointers and offset
|
||||
//GRR "movl row, %%edi \n\t" // edi ==> Avg(x)
|
||||
"xorl %%ebx, %%ebx \n\t" // ebx ==> x
|
||||
@@ -2467,14 +2556,16 @@ png_read_filter_row_mmx_avg(png_row_infop row_info, png_bytep row,
|
||||
"subl %%eax, %%ecx \n\t" // drop over bytes from original length
|
||||
"movl %%ecx, _MMXLength \n\t"
|
||||
|
||||
: // output regs/vars here, e.g., "=m" (_MMXLength) instead of final instr
|
||||
: "=c" (dummy_value_c), // output regs/vars here, e.g., "=m" (_MMXLength) instead of final instr
|
||||
"=S" (dummy_value_S),
|
||||
"=D" (dummy_value_D)
|
||||
|
||||
: "S" (prev_row), // esi // input regs
|
||||
"D" (row), // edi
|
||||
"c" (bpp) // ecx
|
||||
: "1" (prev_row), // esi // input regs
|
||||
"2" (row), // edi
|
||||
"0" (bpp) // ecx
|
||||
|
||||
: "%eax", "%ebx", "%ecx", // clobber list
|
||||
"%edx", "%edi", "%esi"
|
||||
: "%eax", "%ebx", // clobber list
|
||||
"%edx"
|
||||
// GRR: INCLUDE "memory" as clobbered? (_dif, _MMXLength) PROBABLY
|
||||
);
|
||||
|
||||
|
||||
Reference in New Issue
Block a user