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virtualx-engine/thirdparty/libwebp/dsp/mips_macro.h
Rémi Verschelde 55414bc573 webp: Make it a module and unbundle libwebp thirdparty files 
Note that there are two Godot-specific changes made to libwebp
for the javascript/HTML5 platform. They are documented in the
README.md.

(cherry picked from commit ee3cf211c6)
2016-10-30 14:51:30 +01:00

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// Copyright 2014 Google Inc. All Rights Reserved.
//
// Use of this source code is governed by a BSD-style license
// that can be found in the COPYING file in the root of the source
// tree. An additional intellectual property rights grant can be found
// in the file PATENTS. All contributing project authors may
// be found in the AUTHORS file in the root of the source tree.
// -----------------------------------------------------------------------------
//
// MIPS common macros
#ifndef WEBP_DSP_MIPS_MACRO_H_
#define WEBP_DSP_MIPS_MACRO_H_
#if defined(__GNUC__) && defined(__ANDROID__) && LOCAL_GCC_VERSION == 0x409
#define WORK_AROUND_GCC
#endif
#define STR(s) #s
#define XSTR(s) STR(s)
// O0[31..16 | 15..0] = I0[31..16 | 15..0] + I1[31..16 | 15..0]
// O1[31..16 | 15..0] = I0[31..16 | 15..0] - I1[31..16 | 15..0]
// O - output
// I - input (macro doesn't change it)
#define ADD_SUB_HALVES(O0, O1, \
I0, I1) \
"addq.ph %[" #O0 "], %[" #I0 "], %[" #I1 "] \n\t" \
"subq.ph %[" #O1 "], %[" #I0 "], %[" #I1 "] \n\t"
// O - output
// I - input (macro doesn't change it)
// I[0/1] - offset in bytes
#define LOAD_IN_X2(O0, O1, \
I0, I1) \
"lh %[" #O0 "], " #I0 "(%[in]) \n\t" \
"lh %[" #O1 "], " #I1 "(%[in]) \n\t"
// I0 - location
// I1..I9 - offsets in bytes
#define LOAD_WITH_OFFSET_X4(O0, O1, O2, O3, \
I0, I1, I2, I3, I4, I5, I6, I7, I8, I9) \
"ulw %[" #O0 "], " #I1 "+" XSTR(I9) "*" #I5 "(%[" #I0 "]) \n\t" \
"ulw %[" #O1 "], " #I2 "+" XSTR(I9) "*" #I6 "(%[" #I0 "]) \n\t" \
"ulw %[" #O2 "], " #I3 "+" XSTR(I9) "*" #I7 "(%[" #I0 "]) \n\t" \
"ulw %[" #O3 "], " #I4 "+" XSTR(I9) "*" #I8 "(%[" #I0 "]) \n\t"
// O - output
// IO - input/output
// I - input (macro doesn't change it)
#define MUL_SHIFT_SUM(O0, O1, O2, O3, O4, O5, O6, O7, \
IO0, IO1, IO2, IO3, \
I0, I1, I2, I3, I4, I5, I6, I7) \
"mul %[" #O0 "], %[" #I0 "], %[kC2] \n\t" \
"mul %[" #O1 "], %[" #I0 "], %[kC1] \n\t" \
"mul %[" #O2 "], %[" #I1 "], %[kC2] \n\t" \
"mul %[" #O3 "], %[" #I1 "], %[kC1] \n\t" \
"mul %[" #O4 "], %[" #I2 "], %[kC2] \n\t" \
"mul %[" #O5 "], %[" #I2 "], %[kC1] \n\t" \
"mul %[" #O6 "], %[" #I3 "], %[kC2] \n\t" \
"mul %[" #O7 "], %[" #I3 "], %[kC1] \n\t" \
"sra %[" #O0 "], %[" #O0 "], 16 \n\t" \
"sra %[" #O1 "], %[" #O1 "], 16 \n\t" \
"sra %[" #O2 "], %[" #O2 "], 16 \n\t" \
"sra %[" #O3 "], %[" #O3 "], 16 \n\t" \
"sra %[" #O4 "], %[" #O4 "], 16 \n\t" \
"sra %[" #O5 "], %[" #O5 "], 16 \n\t" \
"sra %[" #O6 "], %[" #O6 "], 16 \n\t" \
"sra %[" #O7 "], %[" #O7 "], 16 \n\t" \
"addu %[" #IO0 "], %[" #IO0 "], %[" #I4 "] \n\t" \
"addu %[" #IO1 "], %[" #IO1 "], %[" #I5 "] \n\t" \
"subu %[" #IO2 "], %[" #IO2 "], %[" #I6 "] \n\t" \
"subu %[" #IO3 "], %[" #IO3 "], %[" #I7 "] \n\t"
// O - output
// I - input (macro doesn't change it)
#define INSERT_HALF_X2(O0, O1, \
I0, I1) \
"ins %[" #O0 "], %[" #I0 "], 16, 16 \n\t" \
"ins %[" #O1 "], %[" #I1 "], 16, 16 \n\t"
// O - output
// I - input (macro doesn't change it)
#define SRA_16(O0, O1, O2, O3, \
I0, I1, I2, I3) \
"sra %[" #O0 "], %[" #I0 "], 16 \n\t" \
"sra %[" #O1 "], %[" #I1 "], 16 \n\t" \
"sra %[" #O2 "], %[" #I2 "], 16 \n\t" \
"sra %[" #O3 "], %[" #I3 "], 16 \n\t"
// temp0[31..16 | 15..0] = temp8[31..16 | 15..0] + temp12[31..16 | 15..0]
// temp1[31..16 | 15..0] = temp8[31..16 | 15..0] - temp12[31..16 | 15..0]
// temp0[31..16 | 15..0] = temp0[31..16 >> 3 | 15..0 >> 3]
// temp1[31..16 | 15..0] = temp1[31..16 >> 3 | 15..0 >> 3]
// O - output
// I - input (macro doesn't change it)
#define SHIFT_R_SUM_X2(O0, O1, O2, O3, O4, O5, O6, O7, \
I0, I1, I2, I3, I4, I5, I6, I7) \
"addq.ph %[" #O0 "], %[" #I0 "], %[" #I4 "] \n\t" \
"subq.ph %[" #O1 "], %[" #I0 "], %[" #I4 "] \n\t" \
"addq.ph %[" #O2 "], %[" #I1 "], %[" #I5 "] \n\t" \
"subq.ph %[" #O3 "], %[" #I1 "], %[" #I5 "] \n\t" \
"addq.ph %[" #O4 "], %[" #I2 "], %[" #I6 "] \n\t" \
"subq.ph %[" #O5 "], %[" #I2 "], %[" #I6 "] \n\t" \
"addq.ph %[" #O6 "], %[" #I3 "], %[" #I7 "] \n\t" \
"subq.ph %[" #O7 "], %[" #I3 "], %[" #I7 "] \n\t" \
"shra.ph %[" #O0 "], %[" #O0 "], 3 \n\t" \
"shra.ph %[" #O1 "], %[" #O1 "], 3 \n\t" \
"shra.ph %[" #O2 "], %[" #O2 "], 3 \n\t" \
"shra.ph %[" #O3 "], %[" #O3 "], 3 \n\t" \
"shra.ph %[" #O4 "], %[" #O4 "], 3 \n\t" \
"shra.ph %[" #O5 "], %[" #O5 "], 3 \n\t" \
"shra.ph %[" #O6 "], %[" #O6 "], 3 \n\t" \
"shra.ph %[" #O7 "], %[" #O7 "], 3 \n\t"
// precrq.ph.w temp0, temp8, temp2
// temp0 = temp8[31..16] | temp2[31..16]
// ins temp2, temp8, 16, 16
// temp2 = temp8[31..16] | temp2[15..0]
// O - output
// IO - input/output
// I - input (macro doesn't change it)
#define PACK_2_HALVES_TO_WORD(O0, O1, O2, O3, \
IO0, IO1, IO2, IO3, \
I0, I1, I2, I3) \
"precrq.ph.w %[" #O0 "], %[" #I0 "], %[" #IO0 "] \n\t" \
"precrq.ph.w %[" #O1 "], %[" #I1 "], %[" #IO1 "] \n\t" \
"ins %[" #IO0 "], %[" #I0 "], 16, 16 \n\t" \
"ins %[" #IO1 "], %[" #I1 "], 16, 16 \n\t" \
"precrq.ph.w %[" #O2 "], %[" #I2 "], %[" #IO2 "] \n\t" \
"precrq.ph.w %[" #O3 "], %[" #I3 "], %[" #IO3 "] \n\t" \
"ins %[" #IO2 "], %[" #I2 "], 16, 16 \n\t" \
"ins %[" #IO3 "], %[" #I3 "], 16, 16 \n\t"
// preceu.ph.qbr temp0, temp8
// temp0 = 0 | 0 | temp8[23..16] | temp8[7..0]
// preceu.ph.qbl temp1, temp8
// temp1 = temp8[23..16] | temp8[7..0] | 0 | 0
// O - output
// I - input (macro doesn't change it)
#define CONVERT_2_BYTES_TO_HALF(O0, O1, O2, O3, O4, O5, O6, O7, \
I0, I1, I2, I3) \
"preceu.ph.qbr %[" #O0 "], %[" #I0 "] \n\t" \
"preceu.ph.qbl %[" #O1 "], %[" #I0 "] \n\t" \
"preceu.ph.qbr %[" #O2 "], %[" #I1 "] \n\t" \
"preceu.ph.qbl %[" #O3 "], %[" #I1 "] \n\t" \
"preceu.ph.qbr %[" #O4 "], %[" #I2 "] \n\t" \
"preceu.ph.qbl %[" #O5 "], %[" #I2 "] \n\t" \
"preceu.ph.qbr %[" #O6 "], %[" #I3 "] \n\t" \
"preceu.ph.qbl %[" #O7 "], %[" #I3 "] \n\t"
// temp0[31..16 | 15..0] = temp0[31..16 | 15..0] + temp8[31..16 | 15..0]
// temp0[31..16 | 15..0] = temp0[31..16 <<(s) 7 | 15..0 <<(s) 7]
// temp1..temp7 same as temp0
// precrqu_s.qb.ph temp0, temp1, temp0:
// temp0 = temp1[31..24] | temp1[15..8] | temp0[31..24] | temp0[15..8]
// store temp0 to dst
// IO - input/output
// I - input (macro doesn't change it)
#define STORE_SAT_SUM_X2(IO0, IO1, IO2, IO3, IO4, IO5, IO6, IO7, \
I0, I1, I2, I3, I4, I5, I6, I7, \
I8, I9, I10, I11, I12, I13) \
"addq.ph %[" #IO0 "], %[" #IO0 "], %[" #I0 "] \n\t" \
"addq.ph %[" #IO1 "], %[" #IO1 "], %[" #I1 "] \n\t" \
"addq.ph %[" #IO2 "], %[" #IO2 "], %[" #I2 "] \n\t" \
"addq.ph %[" #IO3 "], %[" #IO3 "], %[" #I3 "] \n\t" \
"addq.ph %[" #IO4 "], %[" #IO4 "], %[" #I4 "] \n\t" \
"addq.ph %[" #IO5 "], %[" #IO5 "], %[" #I5 "] \n\t" \
"addq.ph %[" #IO6 "], %[" #IO6 "], %[" #I6 "] \n\t" \
"addq.ph %[" #IO7 "], %[" #IO7 "], %[" #I7 "] \n\t" \
"shll_s.ph %[" #IO0 "], %[" #IO0 "], 7 \n\t" \
"shll_s.ph %[" #IO1 "], %[" #IO1 "], 7 \n\t" \
"shll_s.ph %[" #IO2 "], %[" #IO2 "], 7 \n\t" \
"shll_s.ph %[" #IO3 "], %[" #IO3 "], 7 \n\t" \
"shll_s.ph %[" #IO4 "], %[" #IO4 "], 7 \n\t" \
"shll_s.ph %[" #IO5 "], %[" #IO5 "], 7 \n\t" \
"shll_s.ph %[" #IO6 "], %[" #IO6 "], 7 \n\t" \
"shll_s.ph %[" #IO7 "], %[" #IO7 "], 7 \n\t" \
"precrqu_s.qb.ph %[" #IO0 "], %[" #IO1 "], %[" #IO0 "] \n\t" \
"precrqu_s.qb.ph %[" #IO2 "], %[" #IO3 "], %[" #IO2 "] \n\t" \
"precrqu_s.qb.ph %[" #IO4 "], %[" #IO5 "], %[" #IO4 "] \n\t" \
"precrqu_s.qb.ph %[" #IO6 "], %[" #IO7 "], %[" #IO6 "] \n\t" \
"usw %[" #IO0 "], " XSTR(I13) "*" #I9 "(%[" #I8 "]) \n\t" \
"usw %[" #IO2 "], " XSTR(I13) "*" #I10 "(%[" #I8 "]) \n\t" \
"usw %[" #IO4 "], " XSTR(I13) "*" #I11 "(%[" #I8 "]) \n\t" \
"usw %[" #IO6 "], " XSTR(I13) "*" #I12 "(%[" #I8 "]) \n\t"
#define OUTPUT_EARLY_CLOBBER_REGS_10() \
: [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), [temp3]"=&r"(temp3), \
[temp4]"=&r"(temp4), [temp5]"=&r"(temp5), [temp6]"=&r"(temp6), \
[temp7]"=&r"(temp7), [temp8]"=&r"(temp8), [temp9]"=&r"(temp9), \
[temp10]"=&r"(temp10)
#define OUTPUT_EARLY_CLOBBER_REGS_18() \
OUTPUT_EARLY_CLOBBER_REGS_10(), \
[temp11]"=&r"(temp11), [temp12]"=&r"(temp12), [temp13]"=&r"(temp13), \
[temp14]"=&r"(temp14), [temp15]"=&r"(temp15), [temp16]"=&r"(temp16), \
[temp17]"=&r"(temp17), [temp18]"=&r"(temp18)
#endif // WEBP_DSP_MIPS_MACRO_H_
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