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// license:BSD-3-Clause
// copyright-holders:Vas Crabb, Ryan Holtz
/***************************************************************************
rgbvmx.h
VMX/Altivec optimised RGB utilities.
***************************************************************************/
#ifndef __RGBVMX__
#define __RGBVMX__
#include <altivec.h>
/***************************************************************************
TYPE DEFINITIONS
***************************************************************************/
class rgbaint_t
{
protected:
typedef __vector signed char VECS8;
typedef __vector unsigned char VECU8;
typedef __vector signed short VECS16;
typedef __vector unsigned short VECU16;
typedef __vector signed int VECS32;
typedef __vector unsigned int VECU32;
public:
inline rgbaint_t(): VECS8(0), VECU8(0), VECS16(0), VECU16(0), VECS32(0), VECU32(0) { }
inline rgbaint_t(UINT32 rgba) { set(rgba); }
inline rgbaint_t(INT32 a, INT32 r, INT32 g, INT32 b) { set(a, r, g, b); }
inline rgbaint_t(rgb_t& rgb) { set(rgb); }
inline rgbaint_t(VECS32 rgba): VECS8(0), VECU8(0), VECS16(0), VECU16(0), VECS32(0), VECU32(0) { m_value = rgba; }
inline void set(rgbaint_t& other) { m_value = other.m_value; }
inline void set(UINT32 rgba)
{
const VECU32 zero = { 0, 0, 0, 0 };
const VECS8 temp = vec_perm(vec_lde(0, &rgba), zero, vec_lvsl(0, &rgba));
m_value = vec_mergeh((VECS16)zero, (VECS16)vec_mergeh((VECS8)zero, temp));
}
inline void set(INT32 a, INT32 r, INT32 g, INT32 b)
{
VECS32 result = { a, r, g, b };
m_value = result;
}
inline void set(rgb_t& rgb)
{
const VECU32 zero = { 0, 0, 0, 0 };
const VECS8 temp = vec_perm(vec_lde(0, rgb.ptr()), zero, vec_lvsl(0, rgb.ptr()));
m_value = vec_mergeh((VECS16)zero, (VECS16)vec_mergeh((VECS8)zero, temp));
}
inline rgb_t to_rgba()
{
VECU32 temp = vec_packs(m_value, m_value);
temp = vec_packsu((VECS16)temp, (VECS16)temp);
UINT32 result;
vec_ste(temp, 0, &result);
return result;
}
inline rgb_t to_rgba_clamp()
{
VECU32 temp = vec_packs(m_value, m_value);
temp = vec_packsu((VECS16)temp, (VECS16)temp);
UINT32 result;
vec_ste(temp, 0, &result);
return result;
}
inline void add(const rgbaint_t& color2)
{
m_value = vec_add(m_value, color2.m_value);
}
inline void add_imm(const INT32 imm)
{
const VECS32 temp = { imm, imm, imm, imm };
m_value = vec_add(m_value, temp);
}
inline void add_imm_rgba(const INT32 a, const INT32 r, const INT32 g, const INT32 b)
{
const VECS32 temp = { a, r, g, b };
m_value = vec_add(m_value, temp);
}
inline void sub(const rgbaint_t& color2)
{
m_value = vec_sub(m_value, color2.m_value);
}
inline void sub_imm(const INT32 imm)
{
const VECS32 temp = { imm, imm, imm, imm };
m_value = vec_sub(m_value, temp);
}
inline void sub_imm_rgba(const INT32 a, const INT32 r, const INT32 g, const INT32 b)
{
const VECS32 temp = { a, r, g, b };
m_value = vec_sub(m_value, temp);
}
inline void subr(rgbaint_t& color2)
{
m_value = vec_sub(color2.m_value, m_value);
}
inline void subr_imm(const INT32 imm)
{
const VECS32 temp = { imm, imm, imm, imm };
m_value = vec_sub(temp, m_value);
}
inline void subr_imm_rgba(const INT32 a, const INT32 r, const INT32 g, const INT32 b)
{
const VECS32 temp = { a, r, g, b };
m_value = vec_sub(temp, m_value);
}
inline void set_a(const INT32 value)
{
const VECS32 temp = { value, value, value, value };
m_value = vec_perm(m_value, temp, alpha_perm);
}
inline void set_r(const INT32 value)
{
const VECS32 temp = { value, value, value, value };
m_value = vec_perm(m_value, temp, red_perm);
}
inline void set_g(const INT32 value)
{
const VECS32 temp = { value, value, value, value };
m_value = vec_perm(m_value, temp, green_perm);
}
inline void set_b(const INT32 value)
{
const VECS32 temp = { value, value, value, value };
m_value = vec_perm(m_value, temp, blue_perm);
}
inline UINT8 get_a() const
{
UINT8 result;
vec_ste(vec_splat((VECU8)m_value, 3), 0, &result);
return result;
}
inline UINT8 get_r() const
{
UINT8 result;
vec_ste(vec_splat((VECU8)m_value, 7), 0, &result);
return result;
}
inline UINT8 get_g() const
{
UINT8 result;
vec_ste(vec_splat((VECU8)m_value, 11), 0, &result);
return result;
}
inline UINT8 get_b() const
{
UINT8 result;
vec_ste(vec_splat((VECU8)m_value, 15), 0, &result);
return result;
}
inline INT32 get_a32() const
{
INT32 result;
vec_ste(vec_splat(m_value, 0), 0, &result);
return result;
}
inline INT32 get_r32() const
{
INT32 result;
vec_ste(vec_splat(m_value, 1), 0, &result);
return result;
}
inline INT32 get_g32() const
{
INT32 result;
vec_ste(vec_splat(m_value, 2), 0, &result);
return result;
}
inline INT32 get_b32() const
{
INT32 result;
vec_ste(vec_splat(m_value, 3), 0, &result);
return result;
}
inline void mul(const rgbaint_t& color)
{
const VECU32 shift = vec_splat_u32(-16);
const VECU32 temp = vec_msum((VECU16)m_value, (VECU16)vec_rl(color.m_value, shift), vec_splat_u32(0));
m_value = vec_add(vec_sl(temp, shift), vec_mulo((VECU16)m_value, (VECU16)color.m_value));
}
inline void mul_imm(const INT32 imm)
{
const VECU32 value = { imm, imm, imm, imm };
const VECU32 shift = vec_splat_u32(-16);
const VECU32 temp = vec_msum((VECU16)m_value, (VECU16)vec_rl(value, shift), vec_splat_u32(0));
m_value = vec_add(vec_sl(temp, shift), vec_mulo((VECU16)m_value, (VECU16)value));
}
inline void mul_imm_rgba(const INT32 a, const INT32 r, const INT32 g, const INT32 b)
{
const VECU32 value = { a, r, g, b };
const VECU32 shift = vec_splat_u32(-16);
const VECU32 temp = vec_msum((VECU16)m_value, (VECU16)vec_rl(value, shift), vec_splat_u32(0));
m_value = vec_add(vec_sl(temp, shift), vec_mulo((VECU16)m_value, (VECU16)value));
}
inline void shl(const rgbaint_t& shift)
{
const VECU32 limit = { 32, 32, 32, 32 };
m_value = vec_and(vec_sl(m_value, (VECU32)shift.m_value), vec_cmpgt(limit, (VECU32)shift.m_value));
}
inline void shl_imm(const UINT8 shift)
{
const VECU32 temp = { shift, shift, shift, shift };
m_value = vec_sl(m_value, temp);
}
inline void shr(const rgbaint_t& shift)
{
const VECU32 limit = { 32, 32, 32, 32 };
m_value = vec_and(vec_sr(m_value, (VECU32)shift.m_value), vec_cmpgt(limit, (VECU32)shift.m_value));
}
inline void shr_imm(const UINT8 shift)
{
const VECU32 temp = { shift, shift, shift, shift };
m_value = vec_sr(m_value, temp);
}
inline void sra(const rgbaint_t& shift)
{
const VECU32 limit = { 31, 31, 31, 31 };
m_value = vec_sra(m_value, vec_min((VECU32)shift.m_value, limit));
}
inline void sra_imm(const UINT8 shift)
{
const VECU32 temp = { shift, shift, shift, shift };
m_value = vec_sra(m_value, temp);
}
inline void or_reg(const rgbaint_t& color2)
{
m_value = vec_or(m_value, color2.m_value);
}
inline void or_imm(const INT32 value)
{
const VECS32 temp = { value, value, value, value };
m_value = vec_or(m_value, temp);
}
inline void or_imm_rgba(const INT32 a, const INT32 r, const INT32 g, const INT32 b)
{
const VECS32 temp = { a, r, g, b };
m_value = vec_or(m_value, temp);
}
inline void and_reg(const rgbaint_t& color)
{
m_value = vec_and(m_value, color.m_value);
}
inline void andnot_reg(const rgbaint_t& color)
{
m_value = vec_andc(m_value, color.m_value);
}
inline void and_imm(const INT32 value)
{
const VECS32 temp = { value, value, value, value };
m_value = vec_and(m_value, temp);
}
inline void and_imm_rgba(const INT32 a, const INT32 r, const INT32 g, const INT32 b)
{
const VECS32 temp = { a, r, g, b };
m_value = vec_and(m_value, temp);
}
inline void xor_reg(const rgbaint_t& color2)
{
m_value = vec_xor(m_value, color2.m_value);
}
inline void xor_imm(const INT32 value)
{
const VECS32 temp = { value, value, value, value };
m_value = vec_xor(m_value, temp);
}
inline void xor_imm_rgba(const INT32 a, const INT32 r, const INT32 g, const INT32 b)
{
const VECS32 temp = { a, r, g, b };
m_value = vec_xor(m_value, temp);
}
inline void clamp_and_clear(const UINT32 sign)
{
const VECS32 vzero = { 0, 0, 0, 0 };
VECS32 vsign = { sign, sign, sign, sign };
m_value = vec_and(m_value, vec_cmpeq(vec_and(m_value, vsign), vzero));
vsign = vec_nor(vec_sra(vsign, vec_splat_u32(1)), vzero);
const VECS32 mask = vec_cmpgt(m_value, vsign);
m_value = vec_or(vec_and(vsign, mask), vec_and(m_value, vec_nor(mask, vzero)));
}
inline void clamp_to_uint8()
{
const VECU32 zero = { 0, 0, 0, 0 };
m_value = vec_packs(m_value, m_value);
m_value = vec_packsu((VECS16)m_value, (VECS16)m_value);
m_value = vec_mergeh((VECU8)zero, (VECU8)m_value);
m_value = vec_mergeh((VECS16)zero, (VECS16)m_value);
}
inline void sign_extend(const UINT32 compare, const UINT32 sign)
{
const VECS32 compare_vec = { compare, compare, compare, compare };
const VECS32 compare_mask = vec_cmpeq(vec_and(m_value, compare_vec), compare_vec);
const VECS32 sign_vec = { sign, sign, sign, sign };
m_value = vec_or(m_value, vec_and(sign_vec, compare_mask));
}
inline void min(const INT32 value)
{
const VECS32 temp = { value, value, value, value };
m_value = vec_min(m_value, temp);
}
inline void max(const INT32 value)
{
const VECS32 temp = { value, value, value, value };
m_value = vec_max(m_value, temp);
}
void blend(const rgbaint_t& other, UINT8 factor);
void scale_and_clamp(const rgbaint_t& scale);
void scale_imm_and_clamp(const INT32 scale);
void scale_imm_add_and_clamp(const INT32 scale, const rgbaint_t& other)
{
mul_imm(scale);
sra_imm(8);
add(other);
clamp_to_uint8();
}
void scale_add_and_clamp(const rgbaint_t& scale, const rgbaint_t& other)
{
mul(scale);
sra_imm(8);
add(other);
clamp_to_uint8();
}
void scale2_add_and_clamp(const rgbaint_t& scale, const rgbaint_t& other, const rgbaint_t& scale2)
{
rgbaint_t color2(other);
color2.mul(scale2);
mul(scale);
add(color2);
sra_imm(8);
clamp_to_uint8();
}
inline void cmpeq(const rgbaint_t& value)
{
m_value = vec_cmpeq(m_value, value.m_value);
}
inline void cmpeq_imm(const INT32 value)
{
const VECS32 temp = { value, value, value, value };
m_value = vec_cmpeq(m_value, temp);
}
inline void cmpeq_imm_rgba(const INT32 a, const INT32 r, const INT32 g, const INT32 b)
{
const VECS32 temp = { a, r, g, b };
m_value = vec_cmpeq(m_value, temp);
}
inline void cmpgt(const rgbaint_t& value)
{
m_value = vec_cmpgt(m_value, value.m_value);
}
inline void cmpgt_imm(const INT32 value)
{
const VECS32 temp = { value, value, value, value };
m_value = vec_cmpgt(m_value, temp);
}
inline void cmpgt_imm_rgba(const INT32 a, const INT32 r, const INT32 g, const INT32 b)
{
const VECS32 temp = { a, r, g, b };
m_value = vec_cmpgt(m_value, temp);
}
inline void cmplt(const rgbaint_t& value)
{
m_value = vec_cmplt(m_value, value.m_value);
}
inline void cmplt_imm(const INT32 value)
{
const VECS32 temp = { value, value, value, value };
m_value = vec_cmplt(m_value, temp);
}
inline void cmplt_imm_rgba(const INT32 a, const INT32 r, const INT32 g, const INT32 b)
{
const VECS32 temp = { a, r, g, b };
m_value = vec_cmplt(m_value, temp);
}
inline rgbaint_t operator=(const rgbaint_t& other)
{
m_value = other.m_value;
return *this;
}
inline rgbaint_t& operator+=(const rgbaint_t& other)
{
m_value = vec_add(m_value, other.m_value);
return *this;
}
inline rgbaint_t& operator+=(const INT32 other)
{
const VECS32 temp = { other, other, other, other };
m_value = vec_add(m_value, temp);
return *this;
}
inline rgbaint_t& operator-=(const rgbaint_t& other)
{
m_value = vec_sub(m_value, other.m_value);
return *this;
}
inline rgbaint_t& operator*=(const rgbaint_t& other)
{
const VECU32 shift = vec_splat_u32(-16);
const VECU32 temp = vec_msum((VECU16)m_value, (VECU16)vec_rl(other.m_value, shift), vec_splat_u32(0));
m_value = vec_add(vec_sl(temp, shift), vec_mulo((VECU16)m_value, (VECU16)other.m_value));
return *this;
}
inline rgbaint_t& operator*=(const INT32 other)
{
const VECS32 value = { other, other, other, other };
const VECU32 shift = vec_splat_u32(-16);
const VECU32 temp = vec_msum((VECU16)m_value, (VECU16)vec_rl(value, shift), vec_splat_u32(0));
m_value = vec_add(vec_sl(temp, shift), vec_mulo((VECU16)m_value, (VECU16)value));
return *this;
}
inline rgbaint_t& operator>>=(const INT32 shift)
{
const VECU32 temp = { shift, shift, shift, shift };
m_value = vec_sra(m_value, temp);
return *this;
}
inline void merge_alpha(const rgbaint_t& alpha)
{
m_value = vec_perm(m_value, alpha.m_value, alpha_perm);
}
static UINT32 bilinear_filter(UINT32 rgb00, UINT32 rgb01, UINT32 rgb10, UINT32 rgb11, UINT8 u, UINT8 v)
{
const VECS32 zero = vec_splat_s32(0);
VECS32 color00 = vec_perm((VECS32)vec_lde(0, &rgb00), zero, vec_lvsl(0, &rgb00));
VECS32 color01 = vec_perm((VECS32)vec_lde(0, &rgb01), zero, vec_lvsl(0, &rgb01));
VECS32 color10 = vec_perm((VECS32)vec_lde(0, &rgb10), zero, vec_lvsl(0, &rgb10));
VECS32 color11 = vec_perm((VECS32)vec_lde(0, &rgb11), zero, vec_lvsl(0, &rgb11));
/* interleave color01 and color00 at the byte level */
color01 = vec_mergeh((VECU8)color01, (VECU8)color00);
color11 = vec_mergeh((VECU8)color11, (VECU8)color10);
color01 = vec_mergeh((VECU8)zero, (VECU8)color01);
color11 = vec_mergeh((VECU8)zero, (VECU8)color11);
color01 = vec_msum((VECS16)color01, scale_table[u], zero);
color11 = vec_msum((VECS16)color11, scale_table[u], zero);
color01 = vec_sl(color01, vec_splat_u32(15));
color11 = vec_sr(color11, vec_splat_u32(1));
color01 = vec_max((VECS16)color01, (VECS16)color11);
color01 = vec_msum((VECS16)color01, scale_table[v], zero);
color01 = vec_sr(color01, vec_splat_u32(15));
color01 = vec_packs(color01, color01);
color01 = vec_packsu((VECS16)color01, (VECS16)color01);
UINT32 result;
vec_ste((VECU32)color01, 0, &result);
return result;
}
inline void bilinear_filter_rgbaint(UINT32 rgb00, UINT32 rgb01, UINT32 rgb10, UINT32 rgb11, UINT8 u, UINT8 v)
{
const VECS32 zero = vec_splat_s32(0);
VECS32 color00 = vec_perm((VECS32)vec_lde(0, &rgb00), zero, vec_lvsl(0, &rgb00));
VECS32 color01 = vec_perm((VECS32)vec_lde(0, &rgb01), zero, vec_lvsl(0, &rgb01));
VECS32 color10 = vec_perm((VECS32)vec_lde(0, &rgb10), zero, vec_lvsl(0, &rgb10));
VECS32 color11 = vec_perm((VECS32)vec_lde(0, &rgb11), zero, vec_lvsl(0, &rgb11));
/* interleave color01 and color00 at the byte level */
color01 = vec_mergeh((VECU8)color01, (VECU8)color00);
color11 = vec_mergeh((VECU8)color11, (VECU8)color10);
color01 = vec_mergeh((VECU8)zero, (VECU8)color01);
color11 = vec_mergeh((VECU8)zero, (VECU8)color11);
color01 = vec_msum((VECS16)color01, scale_table[u], zero);
color11 = vec_msum((VECS16)color11, scale_table[u], zero);
color01 = vec_sl(color01, vec_splat_u32(15));
color11 = vec_sr(color11, vec_splat_u32(1));
color01 = vec_max((VECS16)color01, (VECS16)color11);
color01 = vec_msum((VECS16)color01, scale_table[v], zero);
m_value = vec_sr(color01, vec_splat_u32(15));
}
protected:
VECS32 m_value;
static const VECU8 alpha_perm;
static const VECU8 red_perm;
static const VECU8 green_perm;
static const VECU8 blue_perm;
static const VECS16 scale_table[256];
};
// altivec.h somehow redefines "bool" in a bad way on PowerPC Mac OS X. really.
#ifdef OSX_PPC
#undef vector
#undef pixel
#undef bool
#endif
#endif /* __RGBVMX__ */
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