1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
/* $Id$ */
/*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file 32bpp_ssse3.hpp SSSE3 32 bpp blitter. */
#ifndef BLITTER_32BPP_SSSE3_HPP
#define BLITTER_32BPP_SSSE3_HPP
#ifdef WITH_SSE
#include "32bpp_sse2.hpp"
#include "tmmintrin.h"
/* Use PSHUFB instead of PSHUFHW+PSHUFLW. */
#undef PUT_ALPHA_IN_FRONT_OF_RGB
#define PUT_ALPHA_IN_FRONT_OF_RGB(m_from, m_into) m_into = _mm_shuffle_epi8(m_from, a_cm);
#undef PACK_AB_WITHOUT_SATURATION
#define PACK_AB_WITHOUT_SATURATION(m_from, m_into) m_into = _mm_shuffle_epi8(m_from, pack_low_cm);
/* Adjust brightness of 2 pixels. */
#define ADJUST_BRIGHTNESS_2(m_colourX2, m_brightnessX2) \
/* The following dataflow differs from the one of AdjustBrightness() only for alpha.
* In order to keep alpha in colAB, insert a 1 in a unused brightness byte (a*1->a).
* OK, not a 1 but DEFAULT_BRIGHTNESS to compensate the div.
*/ \
m_brightnessX2 &= 0xFF00FF00; \
m_brightnessX2 += DEFAULT_BRIGHTNESS; \
\
__m128i zero = _mm_setzero_si128(); \
__m128i colAB = _mm_unpacklo_epi8(m_colourX2, zero); \
\
__m128i briAB = _mm_cvtsi32_si128(m_brightnessX2); \
briAB = _mm_shuffle_epi8(briAB, BRIGHTNESS_LOW_CONTROL_MASK); /* DEFAULT_BRIGHTNESS in 0, 0x00 in 2. */ \
colAB = _mm_mullo_epi16(colAB, briAB); \
__m128i colAB_ob = _mm_srli_epi16(colAB, 8+7); \
colAB = _mm_srli_epi16(colAB, 7); \
\
/* Sum overbright.
* Maximum for each rgb is 508 => 9 bits. The highest bit tells if there is overbright.
* -255 is changed in -256 so we just have to take the 8 lower bits into account.
*/ \
colAB = _mm_and_si128(colAB, BRIGHTNESS_DIV_CLEANER); \
colAB_ob = _mm_and_si128(colAB_ob, OVERBRIGHT_PRESENCE_MASK); \
colAB_ob = _mm_mullo_epi16(colAB_ob, OVERBRIGHT_VALUE_MASK); \
colAB_ob = _mm_and_si128(colAB_ob, colAB); \
__m128i obAB = _mm_hadd_epi16(_mm_hadd_epi16(colAB_ob, zero), zero); \
\
obAB = _mm_srli_epi16(obAB, 1); /* Reduce overbright strength. */ \
obAB = _mm_shuffle_epi8(obAB, OVERBRIGHT_CONTROL_MASK); \
__m128i retAB = OVERBRIGHT_VALUE_MASK; /* ob_mask is equal to white. */ \
retAB = _mm_subs_epu16(retAB, colAB); /* (255 - rgb) */ \
retAB = _mm_mullo_epi16(retAB, obAB); /* ob*(255 - rgb) */ \
retAB = _mm_srli_epi16(retAB, 8); /* ob*(255 - rgb)/256 */ \
retAB = _mm_add_epi16(retAB, colAB); /* ob*(255 - rgb)/256 + rgb */ \
\
m_colourX2 = _mm_packus_epi16(retAB, retAB);
/** The SSSE3 32 bpp blitter (without palette animation). */
class Blitter_32bppSSSE3 : public Blitter_32bppSSE2 {
public:
/* virtual */ void Draw(Blitter::BlitterParams *bp, BlitterMode mode, ZoomLevel zoom);
template <BlitterMode mode, Blitter_32bppSSE_Base::ReadMode read_mode, Blitter_32bppSSE_Base::BlockType bt_last>
void Draw(const Blitter::BlitterParams *bp, ZoomLevel zoom);
/* virtual */ const char *GetName() { return "32bpp-ssse3"; }
};
/** Factory for the SSSE3 32 bpp blitter (without palette animation). */
class FBlitter_32bppSSSE3: public BlitterFactory {
public:
FBlitter_32bppSSSE3() : BlitterFactory("32bpp-ssse3", "32bpp SSSE3 Blitter (no palette animation)", HasCPUIDFlag(1, 2, 9)) {}
/* virtual */ Blitter *CreateInstance() { return new Blitter_32bppSSSE3(); }
};
#endif /* WITH_SSE */
#endif /* BLITTER_32BPP_SSSE3_HPP */
|
