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khanat-opennel-code/code/nel/src/misc/rgba.cpp

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// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
// Copyright (C) 2010 Winch Gate Property Limited
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
#include "stdmisc.h"
#include "nel/misc/rgba.h"
#include "nel/misc/stream.h"
#include "nel/misc/system_info.h"
#include "nel/misc/common.h"
namespace NLMISC {
#ifdef NL_NO_ASM
#define DISABLE_MMX_OPTIM
#endif
// ***************************************************************************
// ***************************************************************************
// CRGBA
// ***************************************************************************
// ***************************************************************************
// predifined colors
/// some colors
const CRGBA CRGBA::Black(0, 0, 0) ;
const CRGBA CRGBA::Red(255, 0, 0) ;
const CRGBA CRGBA::Green(0, 255, 0) ;
const CRGBA CRGBA::Yellow(255, 255, 0) ;
const CRGBA CRGBA::Blue(0, 0, 255) ;
const CRGBA CRGBA::Magenta(255, 0, 255) ;
const CRGBA CRGBA::Cyan(0, 255, 255) ;
const CRGBA CRGBA::White(255, 255, 255) ;
// ***************************************************************************
void CRGBA::serial(class NLMISC::IStream &f)
{
f.serial (R);
f.serial (G);
f.serial (B);
f.serial (A);
}
// ***************************************************************************
void CRGBA::set(uint8 r, uint8 g, uint8 b, uint8 a)
{
R = r;
G = g;
B = b;
A = a;
}
// ***************************************************************************
uint8 CRGBA::toGray() const
{
return (R*11+G*16+B*5)/32;
}
#ifdef NL_OS_WINDOWS
#pragma warning(disable : 4731) /* frame pointer register 'ebp' modified by inline assembly code */
#endif
// ***************************************************************************
void CRGBA::addColors(CRGBA *dest, const CRGBA *src1, const CRGBA *src2, uint numColors, uint srcStride, uint destStride, uint dup)
{
if (numColors == 0) return;
#if defined(NL_OS_WINDOWS) && !defined(DISABLE_MMX_OPTIM)
if (!CSystemInfo::hasMMX())
#endif
{ // unoptimized version
if (dup == 1)
{
while (numColors--)
{
dest->add(*src1, *src2);
dest = (CRGBA *) ((uint8 *) dest + destStride);
src1 = (CRGBA *) ((uint8 *) src1 + srcStride);
src2 = (CRGBA *) ((uint8 *) src2 + srcStride);
}
}
else
{
if (dup == 4) // optimisation for the 4 case
{
while (numColors--)
{
dest->add(*src1, *src2);
* (CRGBA *) ((uint8 *) dest + destStride) = *dest;
dest = (CRGBA *) ((uint8 *) dest + destStride);
* (CRGBA *) ((uint8 *) dest + destStride) = *dest;
dest = (CRGBA *) ((uint8 *) dest + destStride);
* (CRGBA *) ((uint8 *) dest + destStride) = *dest;
dest = (CRGBA *) ((uint8 *) dest + (destStride << 1));
src1 = (CRGBA *) ((uint8 *) src1 + srcStride);
src2 = (CRGBA *) ((uint8 *) src2 + srcStride);
}
}
else
{
while (numColors--)
{
dest->add(*src1, *src2);
uint k = dup - 1;
do
{
* (CRGBA *) ((uint8 *) dest + destStride) = *dest;
dest = (CRGBA *) ((uint8 *) dest + destStride);
}
while (--k);
dest = (CRGBA *) ((uint8 *) dest + destStride);
src1 = (CRGBA *) ((uint8 *) src1 + srcStride);
src2 = (CRGBA *) ((uint8 *) src2 + srcStride);
}
}
}
}
#if defined(NL_OS_WINDOWS) && !defined(DISABLE_MMX_OPTIM)
else // optimized mmx version
{
/// well, this could be further optimized when stride is 4 (2 at once)
if (dup == 1)
{
__asm
{
push ebp
mov edi, dest
mov esi, src1
mov ebx, src2
sub ebx, esi ; offset to source 2
mov ecx, numColors
mov edx, destStride
mov ebp, srcStride
sub edi, edx
myLoop:
movd mm0, [esi]
add edi, edx
movd mm1, [esi + ebx]
paddusb mm0, mm1
movd [edi], mm0
add esi, ebp
dec ecx
jne myLoop
pop ebp
emms
}
}
else
{
if (dup == 4)
{
__asm
{
push ebp
mov edi, dest
mov esi, src1
mov ebx, src2
sub ebx, esi ; offset to source 2
mov ecx, numColors
mov edx, destStride
mov ebp, srcStride
myLoop4:
movd mm0, [esi]
movd mm1, [esi + ebx]
paddusb mm0, mm1
movd eax, mm0
mov [edi], eax
mov [edi + edx], eax
mov [edi + 2 * edx], eax
lea edi, [edi + edx * 2]
mov [edi + edx], eax
lea edi, [edi + edx * 2]
add esi, ebp
dec ecx
jne myLoop4
pop ebp
emms
}
}
else
{
__asm
{
push ebp
mov edi, dest
mov esi, src1
mov ebx, src2
sub ebx, esi ; offset to source 2
mov ecx, numColors
mov edx, destStride
mov eax, dup
mov ebp, srcStride
push eax
myLoopN:
movd mm0, [esi]
movd mm1, [esi + ebx]
push ecx
paddusb mm0, mm1
mov ecx, 4[esp]
movd eax, mm0
dupLoopN:
mov [edi], eax
dec ecx
lea edi, [edi + edx]
jne dupLoopN
pop ecx ; get back the loop counter
add esi, ebp
dec ecx
jne myLoopN
pop eax
pop ebp
emms
}
}
}
}
#endif
}
// ***************************************************************************
void CRGBA::modulateColors(CRGBA *dest, const CRGBA *src1, const CRGBA *src2, uint numColors, uint srcStride, uint destStride, uint dup)
{
#if defined(NL_OS_WINDOWS) && !defined(DISABLE_MMX_OPTIM)
if (!CSystemInfo::hasMMX())
#endif
{ // unoptimized version
if (dup == 1)
{
while (numColors--)
{
dest->modulateFromColor(*src1, *src2);
dest = (CRGBA *) ((uint8 *) dest + destStride);
src1 = (CRGBA *) ((uint8 *) src1 + srcStride);
src2 = (CRGBA *) ((uint8 *) src2 + srcStride);
}
}
else
{
if (dup == 4) // optimisation for the 4 case
{
while (numColors--)
{
dest->modulateFromColor(*src1, *src2);
* (CRGBA *) ((uint8 *) dest + destStride) = *dest;
dest = (CRGBA *) ((uint8 *) dest + destStride);
* (CRGBA *) ((uint8 *) dest + destStride) = *dest;
dest = (CRGBA *) ((uint8 *) dest + destStride);
* (CRGBA *) ((uint8 *) dest + destStride) = *dest;
dest = (CRGBA *) ((uint8 *) dest + (destStride << 1));
src1 = (CRGBA *) ((uint8 *) src1 + srcStride);
src2 = (CRGBA *) ((uint8 *) src2 + srcStride);
}
}
else
{
while (numColors--)
{
dest->modulateFromColor(*src1, *src2);
uint k = dup - 1;
do
{
* (CRGBA *) ((uint8 *) dest + destStride) = *dest;
dest = (CRGBA *) ((uint8 *) dest + destStride);
}
while (--k);
dest = (CRGBA *) ((uint8 *) dest + destStride);
src1 = (CRGBA *) ((uint8 *) src1 + srcStride);
src2 = (CRGBA *) ((uint8 *) src2 + srcStride);
}
}
}
}
#if defined(NL_OS_WINDOWS) && !defined(DISABLE_MMX_OPTIM)
else // optimized mmx version
{
uint64 blank = 0;
/// well, this could be further optimized when stride is 4
if (dup == 1)
{ __asm
{
push ebp
movq mm2, blank
mov edi, dest
mov esi, src1
mov ebx, src2
sub ebx, esi ; offset to source 2
mov ecx, numColors
mov edx, destStride
mov ebp, srcStride
myLoop:
movd mm0, [esi]
movd mm1, [esi + ebx]
punpcklbw mm0, mm2
punpcklbw mm1, mm2
pmullw mm0, mm1
psrlw mm0, 8
packuswb mm0, mm0
movd [edi], mm0
add edi, edx
add esi, ebp
dec ecx
jne myLoop
pop ebp
emms
}
}
else
{
if (dup == 4)
{
__asm
{
push ebp
movq mm2, blank
mov edi, dest
mov esi, src1
mov ebx, src2
sub ebx, esi ; offset to source 2
mov ecx, numColors
mov edx, destStride
mov ebp, srcStride
myLoop4:
movd mm0, [esi]
movd mm1, [esi + ebx]
punpcklbw mm0, mm2
punpcklbw mm1, mm2
pmullw mm0, mm1
psrlw mm0, 8
packuswb mm0, mm0
movd eax, mm0
; duplicate the result 4 times
mov [edi], eax
mov [edi + edx], eax
mov [edi + 2 * edx], eax
lea edi, [edi + 2 * edx]
mov [edi + edx], eax
lea edi, [edi + 2 * edx]
add esi, ebp
dec ecx
jne myLoop4
pop ebp
emms
}
}
else
{
__asm
{
push ebp
movq mm2, blank
mov edi, dest
mov esi, src1
mov ebx, src2
sub ebx, esi ; offset to source 2
mov ecx, numColors
mov edx, destStride
mov eax, dup
mov ebp, srcStride
push eax
myLoopN:
movd mm0, [esi]
movd mm1, [esi + ebx]
punpcklbw mm0, mm2
punpcklbw mm1, mm2
pmullw mm0, mm1
push ecx
psrlw mm0, 8
mov ecx, 4[esp]
packuswb mm0, mm0
movd eax, mm0
dupLoopN:
mov [edi], eax
dec ecx
lea edi, [edi + edx]
jne dupLoopN
pop ecx ; get back the loop counter
add esi, ebp
dec ecx
jne myLoopN
pop eax
pop ebp
emms
}
}
}
}
#endif
}
// ***************************************************************************
void CRGBA::subtractColors(CRGBA *dest, const CRGBA *src1, const CRGBA *src2, uint numColors, uint srcStride, uint destStride, uint dup)
{
if (numColors == 0) return;
#if defined(NL_OS_WINDOWS) && !defined(DISABLE_MMX_OPTIM)
if (!CSystemInfo::hasMMX())
#endif
{ // unoptimized version
if (dup == 1)
{
while (numColors--)
{
dest->sub(*src1, *src2);
dest = (CRGBA *) ((uint8 *) dest + destStride);
src1 = (CRGBA *) ((uint8 *) src1 + srcStride);
src2 = (CRGBA *) ((uint8 *) src2 + srcStride);
}
}
else
{
if (dup == 4) // optimisation for the 4 case
{
while (numColors--)
{
dest->sub(*src1, *src2);
* (CRGBA *) ((uint8 *) dest + destStride) = *dest;
dest = (CRGBA *) ((uint8 *) dest + destStride);
* (CRGBA *) ((uint8 *) dest + destStride) = *dest;
dest = (CRGBA *) ((uint8 *) dest + destStride);
* (CRGBA *) ((uint8 *) dest + destStride) = *dest;
dest = (CRGBA *) ((uint8 *) dest + (destStride << 1));
src1 = (CRGBA *) ((uint8 *) src1 + srcStride);
src2 = (CRGBA *) ((uint8 *) src2 + srcStride);
}
}
else
{
while (numColors--)
{
dest->sub(*src1, *src2);
uint k = dup - 1;
do
{
* (CRGBA *) ((uint8 *) dest + destStride) = *dest;
dest = (CRGBA *) ((uint8 *) dest + destStride);
}
while (--k);
dest = (CRGBA *) ((uint8 *) dest + destStride);
src1 = (CRGBA *) ((uint8 *) src1 + srcStride);
src2 = (CRGBA *) ((uint8 *) src2 + srcStride);
}
}
}
}
#if defined(NL_OS_WINDOWS) && !defined(DISABLE_MMX_OPTIM)
else // optimized mmx version
{
/// well, this could be further optimized when stride is 4 (2 at once)
if (dup == 1)
{
__asm
{
push ebp
mov edi, dest
mov esi, src1
mov ebx, src2
sub ebx, esi ; offset to source 2
mov ecx, numColors
mov edx, destStride
mov ebp, srcStride
sub edi, edx
myLoop:
movd mm0, [esi]
add edi, edx
movd mm1, [esi + ebx]
psubusb mm0, mm1
movd [edi], mm0
add esi, ebp
dec ecx
jne myLoop
pop ebp
emms
}
}
else
{
if (dup == 4)
{
__asm
{
push ebp
mov edi, dest
mov esi, src1
mov ebx, src2
sub ebx, esi ; offset to source 2
mov ecx, numColors
mov edx, destStride
mov ebp, srcStride
myLoop4:
movd mm0, [esi]
movd mm1, [esi + ebx]
psubusb mm0, mm1
movd eax, mm0
mov [edi], eax
mov [edi + edx], eax
mov [edi + 2 * edx], eax
lea edi, [edi + edx * 2]
mov [edi + edx], eax
lea edi, [edi + edx * 2]
add esi, ebp
dec ecx
jne myLoop4
pop ebp
emms
}
}
else
{
__asm
{
push ebp
mov edi, dest
mov esi, src1
mov ebx, src2
sub ebx, esi ; offset to source 2
mov ecx, numColors
mov edx, destStride
mov eax, dup
mov ebp, srcStride
push eax
myLoopN:
movd mm0, [esi]
movd mm1, [esi + ebx]
push ecx
psubusb mm0, mm1
mov ecx, 4[esp]
movd eax, mm0
dupLoopN:
mov [edi], eax
dec ecx
lea edi, [edi + edx]
jne dupLoopN
pop ecx ; get back the loop counter
add esi, ebp
dec ecx
jne myLoopN
pop eax
pop ebp
emms
}
}
}
}
#endif
}
// ***************************************************************************
// ***************************************************************************
// CBGRA
// ***************************************************************************
// ***************************************************************************
// ***************************************************************************
void CBGRA::serial(class NLMISC::IStream &f)
{
f.serial (B);
f.serial (G);
f.serial (R);
f.serial (A);
}
// ***************************************************************************
void CBGRA::set(uint8 r, uint8 g, uint8 b, uint8 a)
{
R = r;
G = g;
B = b;
A = a;
}
// ***************************************************************************
void CBGRA::blendFromui(CBGRA &c0, CBGRA &c1, uint coef) // coef must be in [0,256]
{
int a1 = coef;
int a2 = 256-a1;
R = (c0.R*a2 + c1.R*a1) >>8;
G = (c0.G*a2 + c1.G*a1) >>8;
B = (c0.B*a2 + c1.B*a1) >>8;
A = (c0.A*a2 + c1.A*a1) >>8;
}
// ***************************************************************************
bool CRGBA::convertToHLS(float &h, float &l, float &s) const
{
float r = R / 255.f;
float g = G / 255.f;
float b = B / 255.f;
float maxV = NLMISC::maxof(r, g, b);
float minV = NLMISC::minof(r, g, b);
/// get lightness
l = 0.5f * (maxV + minV);
/// Get saturation
if (minV == maxV) // all composants are equals -> achromatique
{
h = 0;
s = 0;
return true;
}
float diff = maxV - minV;
/// compute saturation
s = l > 0.5f ? /*are we in the top of the double-hexcone ? */
diff / (2.f - maxV - minV) :
diff / (maxV + minV);
// Get hue
if (maxV == r)
{
h = (g - b) / diff;
}
else if (maxV == g)
{
h = 2.f + (b - r) / diff;
}
else
{
h = 4.f + (r - g) / diff;
}
h *= 60.f; // scale to [0..360]
if (h < 0.f) h += 360.f;
return false;
}
// ***************************************************************************
/// Used by buildFromHLS
static float HLSValue(float h, float v1, float v2)
{
/* get hue in the [0, 360] interval */
// h -= 360.f * ::floorf(h / 360.f);
if (h > 360.f) h -= 360.f;
else if (h < 0) h += 360.f;
if (h < 60.f)
{
return v1 + (v2 - v1) * h / 60.f;
}
else if (h < 180.f)
{
return v2;
}
else if (h < 240.f)
{
return v1 + (v2 - v1) * (240.f - h) / 60.f;
}
else
{
return v1;
}
}
// ***************************************************************************
void CRGBA::buildFromHLS(float h, float l, float s)
{
clamp(l, 0, 1);
clamp(s, 0, 1);
float v2 = (l <= 0.5f) ? (l * (1 + s)) : (l + s - l * s);
float v1 = 2.f * l - v2;
if (s == 0) // achromatic ?
{
R = G = B = (uint8) (255.f * l);
}
else // chromatic case
{
float v;
//
v = HLSValue(h + 120.f, v1, v2);
clamp(v, 0.f, 1.f);
R = (uint8) (255.f * v);
//
v = HLSValue(h, v1, v2);
clamp(v, 0.f, 1.f);
G = (uint8) (255.f * v);
//
v = HLSValue(h - 120.f, v1, v2);
clamp(v, 0.f, 1.f);
B = (uint8) (255.f * v);
}
}
// ***************************************************************************
// ***************************************************************************
// CRGBAF
// ***************************************************************************
// ***************************************************************************
// ***************************************************************************
void CRGBAF::serial(class NLMISC::IStream &f)
{
f.serial (R);
f.serial (G);
f.serial (B);
f.serial (A);
}
// ***************************************************************************
void CRGBAF::set(float r, float g, float b, float a)
{
R = r;
G = g;
B = b;
A = a;
}
} // NLMISC
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