bsnes/snesfilter/2xSaI/implementation.cpp

1172 lines
37 KiB
C++
Executable File

static uint32_t colorMask = 0xFEFEFE;
static uint32_t lowPixelMask = 0x010101;
static uint32_t qcolorMask = 0xFCFCFC;
static uint32_t qlowpixelMask = 0x030303;
static uint32_t redblueMask = 0xFF00FF;
static uint32_t greenMask = 0xFF00;
uint32_t qRGB_COLOR_MASK[2] = { 0xFEFEFE, 0xFEFEFE };
static inline int GetResult1 (uint32_t A, uint32_t B, uint32_t C, uint32_t D,
uint32_t /* E */)
{
int x = 0;
int y = 0;
int r = 0;
if (A == C)
x += 1;
else if (B == C)
y += 1;
if (A == D)
x += 1;
else if (B == D)
y += 1;
if (x <= 1)
r += 1;
if (y <= 1)
r -= 1;
return r;
}
static inline int GetResult2 (uint32_t A, uint32_t B, uint32_t C, uint32_t D,
uint32_t /* E */)
{
int x = 0;
int y = 0;
int r = 0;
if (A == C)
x += 1;
else if (B == C)
y += 1;
if (A == D)
x += 1;
else if (B == D)
y += 1;
if (x <= 1)
r -= 1;
if (y <= 1)
r += 1;
return r;
}
static inline int GetResult (uint32_t A, uint32_t B, uint32_t C, uint32_t D)
{
int x = 0;
int y = 0;
int r = 0;
if (A == C)
x += 1;
else if (B == C)
y += 1;
if (A == D)
x += 1;
else if (B == D)
y += 1;
if (x <= 1)
r += 1;
if (y <= 1)
r -= 1;
return r;
}
static inline uint32_t INTERPOLATE (uint32_t A, uint32_t B)
{
if (A != B) {
return (((A & colorMask) >> 1) + ((B & colorMask) >> 1) +
(A & B & lowPixelMask));
} else
return A;
}
static inline uint32_t Q_INTERPOLATE (uint32_t A, uint32_t B, uint32_t C, uint32_t D)
{
register uint32_t x = ((A & qcolorMask) >> 2) +
((B & qcolorMask) >> 2) +
((C & qcolorMask) >> 2) + ((D & qcolorMask) >> 2);
register uint32_t y = (A & qlowpixelMask) +
(B & qlowpixelMask) + (C & qlowpixelMask) + (D & qlowpixelMask);
y = (y >> 2) & qlowpixelMask;
return x + y;
}
static inline int GetResult1_32 (uint32_t A, uint32_t B, uint32_t C, uint32_t D,
uint32_t /* E */)
{
int x = 0;
int y = 0;
int r = 0;
if (A == C)
x += 1;
else if (B == C)
y += 1;
if (A == D)
x += 1;
else if (B == D)
y += 1;
if (x <= 1)
r += 1;
if (y <= 1)
r -= 1;
return r;
}
static inline int GetResult2_32 (uint32_t A, uint32_t B, uint32_t C, uint32_t D,
uint32_t /* E */)
{
int x = 0;
int y = 0;
int r = 0;
if (A == C)
x += 1;
else if (B == C)
y += 1;
if (A == D)
x += 1;
else if (B == D)
y += 1;
if (x <= 1)
r -= 1;
if (y <= 1)
r += 1;
return r;
}
#define BLUE_MASK565 0x001F001F
#define RED_MASK565 0xF800F800
#define GREEN_MASK565 0x07E007E0
#define BLUE_MASK555 0x001F001F
#define RED_MASK555 0x7C007C00
#define GREEN_MASK555 0x03E003E0
void Super2xSaI (uint8_t *srcPtr, uint32_t srcPitch,
uint8_t *deltaPtr, uint8_t *dstPtr, uint32_t dstPitch,
int width, int height)
{
uint16_t *bP;
uint8_t *dP;
uint32_t inc_bP;
uint32_t Nextline = srcPitch >> 1;
{
inc_bP = 1;
for (; height; height--) {
bP = (uint16_t *) srcPtr;
dP = (uint8_t *) dstPtr;
for (uint32_t finish = width; finish; finish -= inc_bP) {
uint32_t color4, color5, color6;
uint32_t color1, color2, color3;
uint32_t colorA0, colorA1, colorA2, colorA3,
colorB0, colorB1, colorB2, colorB3, colorS1, colorS2;
uint32_t product1a, product1b, product2a, product2b;
//--------------------------------------- B1 B2
// 4 5 6 S2
// 1 2 3 S1
// A1 A2
colorB0 = *(bP - Nextline - 1);
colorB1 = *(bP - Nextline);
colorB2 = *(bP - Nextline + 1);
colorB3 = *(bP - Nextline + 2);
color4 = *(bP - 1);
color5 = *(bP);
color6 = *(bP + 1);
colorS2 = *(bP + 2);
color1 = *(bP + Nextline - 1);
color2 = *(bP + Nextline);
color3 = *(bP + Nextline + 1);
colorS1 = *(bP + Nextline + 2);
colorA0 = *(bP + Nextline + Nextline - 1);
colorA1 = *(bP + Nextline + Nextline);
colorA2 = *(bP + Nextline + Nextline + 1);
colorA3 = *(bP + Nextline + Nextline + 2);
//--------------------------------------
if (color2 == color6 && color5 != color3) {
product2b = product1b = color2;
} else if (color5 == color3 && color2 != color6) {
product2b = product1b = color5;
} else if (color5 == color3 && color2 == color6) {
register int r = 0;
r += GetResult (color6, color5, color1, colorA1);
r += GetResult (color6, color5, color4, colorB1);
r += GetResult (color6, color5, colorA2, colorS1);
r += GetResult (color6, color5, colorB2, colorS2);
if (r > 0)
product2b = product1b = color6;
else if (r < 0)
product2b = product1b = color5;
else {
product2b = product1b = INTERPOLATE (color5, color6);
}
} else {
if (color6 == color3 && color3 == colorA1
&& color2 != colorA2 && color3 != colorA0)
product2b =
Q_INTERPOLATE (color3, color3, color3, color2);
else if (color5 == color2 && color2 == colorA2
&& colorA1 != color3 && color2 != colorA3)
product2b =
Q_INTERPOLATE (color2, color2, color2, color3);
else
product2b = INTERPOLATE (color2, color3);
if (color6 == color3 && color6 == colorB1
&& color5 != colorB2 && color6 != colorB0)
product1b =
Q_INTERPOLATE (color6, color6, color6, color5);
else if (color5 == color2 && color5 == colorB2
&& colorB1 != color6 && color5 != colorB3)
product1b =
Q_INTERPOLATE (color6, color5, color5, color5);
else
product1b = INTERPOLATE (color5, color6);
}
if (color5 == color3 && color2 != color6 && color4 == color5
&& color5 != colorA2)
product2a = INTERPOLATE (color2, color5);
else
if (color5 == color1 && color6 == color5
&& color4 != color2 && color5 != colorA0)
product2a = INTERPOLATE (color2, color5);
else
product2a = color2;
if (color2 == color6 && color5 != color3 && color1 == color2
&& color2 != colorB2)
product1a = INTERPOLATE (color2, color5);
else
if (color4 == color2 && color3 == color2
&& color1 != color5 && color2 != colorB0)
product1a = INTERPOLATE (color2, color5);
else
product1a = color5;
#ifdef WORDS_BIGENDIAN
product1a = (product1a << 16) | product1b;
product2a = (product2a << 16) | product2b;
#else
product1a = product1a | (product1b << 16);
product2a = product2a | (product2b << 16);
#endif
*((uint32_t *) dP) = product1a;
*((uint32_t *) (dP + dstPitch)) = product2a;
bP += inc_bP;
dP += sizeof (uint32_t);
} // end of for ( finish= width etc..)
srcPtr += srcPitch;
dstPtr += dstPitch << 1;
deltaPtr += srcPitch;
} // endof: for (; height; height--)
}
}
void Super2xSaI32 (uint8_t *srcPtr, uint32_t srcPitch,
uint8_t * /* deltaPtr */, uint8_t *dstPtr, uint32_t dstPitch,
int width, int height)
{
uint32_t *bP;
uint32_t *dP;
uint32_t inc_bP;
uint32_t Nextline = srcPitch >> 2;
inc_bP = 1;
for (; height; height--) {
bP = (uint32_t *) srcPtr;
dP = (uint32_t *) dstPtr;
for (uint32_t finish = width; finish; finish -= inc_bP) {
uint32_t color4, color5, color6;
uint32_t color1, color2, color3;
uint32_t colorA0, colorA1, colorA2, colorA3,
colorB0, colorB1, colorB2, colorB3, colorS1, colorS2;
uint32_t product1a, product1b, product2a, product2b;
//--------------------------------------- B1 B2
// 4 5 6 S2
// 1 2 3 S1
// A1 A2
colorB0 = *(bP - Nextline - 1);
colorB1 = *(bP - Nextline);
colorB2 = *(bP - Nextline + 1);
colorB3 = *(bP - Nextline + 2);
color4 = *(bP - 1);
color5 = *(bP);
color6 = *(bP + 1);
colorS2 = *(bP + 2);
color1 = *(bP + Nextline - 1);
color2 = *(bP + Nextline);
color3 = *(bP + Nextline + 1);
colorS1 = *(bP + Nextline + 2);
colorA0 = *(bP + Nextline + Nextline - 1);
colorA1 = *(bP + Nextline + Nextline);
colorA2 = *(bP + Nextline + Nextline + 1);
colorA3 = *(bP + Nextline + Nextline + 2);
//--------------------------------------
if (color2 == color6 && color5 != color3) {
product2b = product1b = color2;
} else if (color5 == color3 && color2 != color6) {
product2b = product1b = color5;
} else if (color5 == color3 && color2 == color6) {
register int r = 0;
r += GetResult (color6, color5, color1, colorA1);
r += GetResult (color6, color5, color4, colorB1);
r += GetResult (color6, color5, colorA2, colorS1);
r += GetResult (color6, color5, colorB2, colorS2);
if (r > 0)
product2b = product1b = color6;
else if (r < 0)
product2b = product1b = color5;
else {
product2b = product1b = INTERPOLATE (color5, color6);
}
} else {
if (color6 == color3 && color3 == colorA1
&& color2 != colorA2 && color3 != colorA0)
product2b =
Q_INTERPOLATE (color3, color3, color3, color2);
else if (color5 == color2 && color2 == colorA2
&& colorA1 != color3 && color2 != colorA3)
product2b =
Q_INTERPOLATE (color2, color2, color2, color3);
else
product2b = INTERPOLATE (color2, color3);
if (color6 == color3 && color6 == colorB1
&& color5 != colorB2 && color6 != colorB0)
product1b =
Q_INTERPOLATE (color6, color6, color6, color5);
else if (color5 == color2 && color5 == colorB2
&& colorB1 != color6 && color5 != colorB3)
product1b =
Q_INTERPOLATE (color6, color5, color5, color5);
else
product1b = INTERPOLATE (color5, color6);
}
if (color5 == color3 && color2 != color6 && color4 == color5
&& color5 != colorA2)
product2a = INTERPOLATE (color2, color5);
else
if (color5 == color1 && color6 == color5
&& color4 != color2 && color5 != colorA0)
product2a = INTERPOLATE (color2, color5);
else
product2a = color2;
if (color2 == color6 && color5 != color3 && color1 == color2
&& color2 != colorB2)
product1a = INTERPOLATE (color2, color5);
else
if (color4 == color2 && color3 == color2
&& color1 != color5 && color2 != colorB0)
product1a = INTERPOLATE (color2, color5);
else
product1a = color5;
*(dP) = product1a;
*(dP+1) = product1b;
*(dP + (dstPitch >> 2)) = product2a;
*(dP + (dstPitch >> 2) + 1) = product2b;
bP += inc_bP;
dP += 2;
} // end of for ( finish= width etc..)
srcPtr += srcPitch;
dstPtr += dstPitch << 1;
// deltaPtr += srcPitch;
} // endof: for (; height; height--)
}
void SuperEagle (uint8_t *srcPtr, uint32_t srcPitch, uint8_t *deltaPtr,
uint8_t *dstPtr, uint32_t dstPitch, int width, int height)
{
uint8_t *dP;
uint16_t *bP;
uint16_t *xP;
uint32_t inc_bP;
{
inc_bP = 1;
uint32_t Nextline = srcPitch >> 1;
for (; height; height--) {
bP = (uint16_t *) srcPtr;
xP = (uint16_t *) deltaPtr;
dP = dstPtr;
for (uint32_t finish = width; finish; finish -= inc_bP) {
uint32_t color4, color5, color6;
uint32_t color1, color2, color3;
uint32_t colorA1, colorA2, colorB1, colorB2, colorS1, colorS2;
uint32_t product1a, product1b, product2a, product2b;
colorB1 = *(bP - Nextline);
colorB2 = *(bP - Nextline + 1);
color4 = *(bP - 1);
color5 = *(bP);
color6 = *(bP + 1);
colorS2 = *(bP + 2);
color1 = *(bP + Nextline - 1);
color2 = *(bP + Nextline);
color3 = *(bP + Nextline + 1);
colorS1 = *(bP + Nextline + 2);
colorA1 = *(bP + Nextline + Nextline);
colorA2 = *(bP + Nextline + Nextline + 1);
// --------------------------------------
if (color2 == color6 && color5 != color3) {
product1b = product2a = color2;
if ((color1 == color2) || (color6 == colorB2)) {
product1a = INTERPOLATE (color2, color5);
product1a = INTERPOLATE (color2, product1a);
// product1a = color2;
} else {
product1a = INTERPOLATE (color5, color6);
}
if ((color6 == colorS2) || (color2 == colorA1)) {
product2b = INTERPOLATE (color2, color3);
product2b = INTERPOLATE (color2, product2b);
// product2b = color2;
} else {
product2b = INTERPOLATE (color2, color3);
}
} else if (color5 == color3 && color2 != color6) {
product2b = product1a = color5;
if ((colorB1 == color5) || (color3 == colorS1)) {
product1b = INTERPOLATE (color5, color6);
product1b = INTERPOLATE (color5, product1b);
// product1b = color5;
} else {
product1b = INTERPOLATE (color5, color6);
}
if ((color3 == colorA2) || (color4 == color5)) {
product2a = INTERPOLATE (color5, color2);
product2a = INTERPOLATE (color5, product2a);
// product2a = color5;
} else {
product2a = INTERPOLATE (color2, color3);
}
} else if (color5 == color3 && color2 == color6) {
register int r = 0;
r += GetResult (color6, color5, color1, colorA1);
r += GetResult (color6, color5, color4, colorB1);
r += GetResult (color6, color5, colorA2, colorS1);
r += GetResult (color6, color5, colorB2, colorS2);
if (r > 0) {
product1b = product2a = color2;
product1a = product2b = INTERPOLATE (color5, color6);
} else if (r < 0) {
product2b = product1a = color5;
product1b = product2a = INTERPOLATE (color5, color6);
} else {
product2b = product1a = color5;
product1b = product2a = color2;
}
} else {
product2b = product1a = INTERPOLATE (color2, color6);
product2b =
Q_INTERPOLATE (color3, color3, color3, product2b);
product1a =
Q_INTERPOLATE (color5, color5, color5, product1a);
product2a = product1b = INTERPOLATE (color5, color3);
product2a =
Q_INTERPOLATE (color2, color2, color2, product2a);
product1b =
Q_INTERPOLATE (color6, color6, color6, product1b);
// product1a = color5;
// product1b = color6;
// product2a = color2;
// product2b = color3;
}
#ifdef WORDS_BIGENDIAN
product1a = (product1a << 16) | product1b;
product2a = (product2a << 16) | product2b;
#else
product1a = product1a | (product1b << 16);
product2a = product2a | (product2b << 16);
#endif
*((uint32_t *) dP) = product1a;
*((uint32_t *) (dP + dstPitch)) = product2a;
*xP = color5;
bP += inc_bP;
xP += inc_bP;
dP += sizeof (uint32_t);
} // end of for ( finish= width etc..)
srcPtr += srcPitch;
dstPtr += dstPitch << 1;
deltaPtr += srcPitch;
} // endof: for (height; height; height--)
}
}
void SuperEagle32 (uint8_t *srcPtr, uint32_t srcPitch, uint8_t */*deltaPtr*/,
uint8_t *dstPtr, uint32_t dstPitch, int width, int height)
{
uint32_t *dP;
uint32_t *bP;
//uint32_t *xP;
uint32_t inc_bP;
inc_bP = 1;
uint32_t Nextline = srcPitch >> 2;
for (; height; height--) {
bP = (uint32_t *) srcPtr;
//xP = (uint32_t *) deltaPtr;
dP = (uint32_t *)dstPtr;
for (uint32_t finish = width; finish; finish -= inc_bP) {
uint32_t color4, color5, color6;
uint32_t color1, color2, color3;
uint32_t colorA1, colorA2, colorB1, colorB2, colorS1, colorS2;
uint32_t product1a, product1b, product2a, product2b;
colorB1 = *(bP - Nextline);
colorB2 = *(bP - Nextline + 1);
color4 = *(bP - 1);
color5 = *(bP);
color6 = *(bP + 1);
colorS2 = *(bP + 2);
color1 = *(bP + Nextline - 1);
color2 = *(bP + Nextline);
color3 = *(bP + Nextline + 1);
colorS1 = *(bP + Nextline + 2);
colorA1 = *(bP + Nextline + Nextline);
colorA2 = *(bP + Nextline + Nextline + 1);
// --------------------------------------
if (color2 == color6 && color5 != color3) {
product1b = product2a = color2;
if ((color1 == color2) || (color6 == colorB2)) {
product1a = INTERPOLATE (color2, color5);
product1a = INTERPOLATE (color2, product1a);
// product1a = color2;
} else {
product1a = INTERPOLATE (color5, color6);
}
if ((color6 == colorS2) || (color2 == colorA1)) {
product2b = INTERPOLATE (color2, color3);
product2b = INTERPOLATE (color2, product2b);
// product2b = color2;
} else {
product2b = INTERPOLATE (color2, color3);
}
} else if (color5 == color3 && color2 != color6) {
product2b = product1a = color5;
if ((colorB1 == color5) || (color3 == colorS1)) {
product1b = INTERPOLATE (color5, color6);
product1b = INTERPOLATE (color5, product1b);
// product1b = color5;
} else {
product1b = INTERPOLATE (color5, color6);
}
if ((color3 == colorA2) || (color4 == color5)) {
product2a = INTERPOLATE (color5, color2);
product2a = INTERPOLATE (color5, product2a);
// product2a = color5;
} else {
product2a = INTERPOLATE (color2, color3);
}
} else if (color5 == color3 && color2 == color6) {
register int r = 0;
r += GetResult (color6, color5, color1, colorA1);
r += GetResult (color6, color5, color4, colorB1);
r += GetResult (color6, color5, colorA2, colorS1);
r += GetResult (color6, color5, colorB2, colorS2);
if (r > 0) {
product1b = product2a = color2;
product1a = product2b = INTERPOLATE (color5, color6);
} else if (r < 0) {
product2b = product1a = color5;
product1b = product2a = INTERPOLATE (color5, color6);
} else {
product2b = product1a = color5;
product1b = product2a = color2;
}
} else {
product2b = product1a = INTERPOLATE (color2, color6);
product2b =
Q_INTERPOLATE (color3, color3, color3, product2b);
product1a =
Q_INTERPOLATE (color5, color5, color5, product1a);
product2a = product1b = INTERPOLATE (color5, color3);
product2a =
Q_INTERPOLATE (color2, color2, color2, product2a);
product1b =
Q_INTERPOLATE (color6, color6, color6, product1b);
// product1a = color5;
// product1b = color6;
// product2a = color2;
// product2b = color3;
}
*(dP) = product1a;
*(dP+1) = product1b;
*(dP + (dstPitch >> 2)) = product2a;
*(dP + (dstPitch >> 2) +1) = product2b;
//*xP = color5;
bP += inc_bP;
//xP += inc_bP;
dP += 2;
} // end of for ( finish= width etc..)
srcPtr += srcPitch;
dstPtr += dstPitch << 1;
//deltaPtr += srcPitch;
} // endof: for (height; height; height--)
}
void _2xSaI (uint8_t *srcPtr, uint32_t srcPitch, uint8_t *deltaPtr,
uint8_t *dstPtr, uint32_t dstPitch, int width, int height)
{
uint8_t *dP;
uint16_t *bP;
uint32_t inc_bP;
{
inc_bP = 1;
uint32_t Nextline = srcPitch >> 1;
for (; height; height--) {
bP = (uint16_t *) srcPtr;
dP = dstPtr;
for (uint32_t finish = width; finish; finish -= inc_bP) {
register uint32_t colorA, colorB;
uint32_t colorC, colorD,
colorE, colorF, colorG, colorH,
colorI, colorJ, colorK, colorL,
colorM, colorN, colorO, colorP;
uint32_t product, product1, product2;
//---------------------------------------
// Map of the pixels: I|E F|J
// G|A B|K
// H|C D|L
// M|N O|P
colorI = *(bP - Nextline - 1);
colorE = *(bP - Nextline);
colorF = *(bP - Nextline + 1);
colorJ = *(bP - Nextline + 2);
colorG = *(bP - 1);
colorA = *(bP);
colorB = *(bP + 1);
colorK = *(bP + 2);
colorH = *(bP + Nextline - 1);
colorC = *(bP + Nextline);
colorD = *(bP + Nextline + 1);
colorL = *(bP + Nextline + 2);
colorM = *(bP + Nextline + Nextline - 1);
colorN = *(bP + Nextline + Nextline);
colorO = *(bP + Nextline + Nextline + 1);
colorP = *(bP + Nextline + Nextline + 2);
if ((colorA == colorD) && (colorB != colorC)) {
if (((colorA == colorE) && (colorB == colorL)) ||
((colorA == colorC) && (colorA == colorF)
&& (colorB != colorE) && (colorB == colorJ))) {
product = colorA;
} else {
product = INTERPOLATE (colorA, colorB);
}
if (((colorA == colorG) && (colorC == colorO)) ||
((colorA == colorB) && (colorA == colorH)
&& (colorG != colorC) && (colorC == colorM))) {
product1 = colorA;
} else {
product1 = INTERPOLATE (colorA, colorC);
}
product2 = colorA;
} else if ((colorB == colorC) && (colorA != colorD)) {
if (((colorB == colorF) && (colorA == colorH)) ||
((colorB == colorE) && (colorB == colorD)
&& (colorA != colorF) && (colorA == colorI))) {
product = colorB;
} else {
product = INTERPOLATE (colorA, colorB);
}
if (((colorC == colorH) && (colorA == colorF)) ||
((colorC == colorG) && (colorC == colorD)
&& (colorA != colorH) && (colorA == colorI))) {
product1 = colorC;
} else {
product1 = INTERPOLATE (colorA, colorC);
}
product2 = colorB;
} else if ((colorA == colorD) && (colorB == colorC)) {
if (colorA == colorB) {
product = colorA;
product1 = colorA;
product2 = colorA;
} else {
register int r = 0;
product1 = INTERPOLATE (colorA, colorC);
product = INTERPOLATE (colorA, colorB);
r +=
GetResult1 (colorA, colorB, colorG, colorE,
colorI);
r +=
GetResult2 (colorB, colorA, colorK, colorF,
colorJ);
r +=
GetResult2 (colorB, colorA, colorH, colorN,
colorM);
r +=
GetResult1 (colorA, colorB, colorL, colorO,
colorP);
if (r > 0)
product2 = colorA;
else if (r < 0)
product2 = colorB;
else {
product2 =
Q_INTERPOLATE (colorA, colorB, colorC,
colorD);
}
}
} else {
product2 = Q_INTERPOLATE (colorA, colorB, colorC, colorD);
if ((colorA == colorC) && (colorA == colorF)
&& (colorB != colorE) && (colorB == colorJ)) {
product = colorA;
} else if ((colorB == colorE) && (colorB == colorD)
&& (colorA != colorF) && (colorA == colorI)) {
product = colorB;
} else {
product = INTERPOLATE (colorA, colorB);
}
if ((colorA == colorB) && (colorA == colorH)
&& (colorG != colorC) && (colorC == colorM)) {
product1 = colorA;
} else if ((colorC == colorG) && (colorC == colorD)
&& (colorA != colorH) && (colorA == colorI)) {
product1 = colorC;
} else {
product1 = INTERPOLATE (colorA, colorC);
}
}
#ifdef WORDS_BIGENDIAN
product = (colorA << 16) | product ;
product1 = (product1 << 16) | product2 ;
#else
product = colorA | (product << 16);
product1 = product1 | (product2 << 16);
#endif
*((int32_t *) dP) = product;
*((uint32_t *) (dP + dstPitch)) = product1;
bP += inc_bP;
dP += sizeof (uint32_t);
} // end of for ( finish= width etc..)
srcPtr += srcPitch;
dstPtr += dstPitch << 1;
deltaPtr += srcPitch;
} // endof: for (height; height; height--)
}
}
void _2xSaI32 (uint8_t *srcPtr, uint32_t srcPitch, uint8_t * /* deltaPtr */,
uint8_t *dstPtr, uint32_t dstPitch, int width, int height)
{
uint32_t *dP;
uint32_t *bP;
uint32_t inc_bP = 1;
uint32_t Nextline = srcPitch >> 2;
for (; height; height--) {
bP = (uint32_t *) srcPtr;
dP = (uint32_t *) dstPtr;
for (uint32_t finish = width; finish; finish -= inc_bP) {
register uint32_t colorA, colorB;
uint32_t colorC, colorD,
colorE, colorF, colorG, colorH,
colorI, colorJ, colorK, colorL,
colorM, colorN, colorO, colorP;
uint32_t product, product1, product2;
//---------------------------------------
// Map of the pixels: I|E F|J
// G|A B|K
// H|C D|L
// M|N O|P
colorI = *(bP - Nextline - 1);
colorE = *(bP - Nextline);
colorF = *(bP - Nextline + 1);
colorJ = *(bP - Nextline + 2);
colorG = *(bP - 1);
colorA = *(bP);
colorB = *(bP + 1);
colorK = *(bP + 2);
colorH = *(bP + Nextline - 1);
colorC = *(bP + Nextline);
colorD = *(bP + Nextline + 1);
colorL = *(bP + Nextline + 2);
colorM = *(bP + Nextline + Nextline - 1);
colorN = *(bP + Nextline + Nextline);
colorO = *(bP + Nextline + Nextline + 1);
colorP = *(bP + Nextline + Nextline + 2);
if ((colorA == colorD) && (colorB != colorC)) {
if (((colorA == colorE) && (colorB == colorL)) ||
((colorA == colorC) && (colorA == colorF)
&& (colorB != colorE) && (colorB == colorJ))) {
product = colorA;
} else {
product = INTERPOLATE (colorA, colorB);
}
if (((colorA == colorG) && (colorC == colorO)) ||
((colorA == colorB) && (colorA == colorH)
&& (colorG != colorC) && (colorC == colorM))) {
product1 = colorA;
} else {
product1 = INTERPOLATE (colorA, colorC);
}
product2 = colorA;
} else if ((colorB == colorC) && (colorA != colorD)) {
if (((colorB == colorF) && (colorA == colorH)) ||
((colorB == colorE) && (colorB == colorD)
&& (colorA != colorF) && (colorA == colorI))) {
product = colorB;
} else {
product = INTERPOLATE (colorA, colorB);
}
if (((colorC == colorH) && (colorA == colorF)) ||
((colorC == colorG) && (colorC == colorD)
&& (colorA != colorH) && (colorA == colorI))) {
product1 = colorC;
} else {
product1 = INTERPOLATE (colorA, colorC);
}
product2 = colorB;
} else if ((colorA == colorD) && (colorB == colorC)) {
if (colorA == colorB) {
product = colorA;
product1 = colorA;
product2 = colorA;
} else {
register int r = 0;
product1 = INTERPOLATE (colorA, colorC);
product = INTERPOLATE (colorA, colorB);
r +=
GetResult1 (colorA, colorB, colorG, colorE,
colorI);
r +=
GetResult2 (colorB, colorA, colorK, colorF,
colorJ);
r +=
GetResult2 (colorB, colorA, colorH, colorN,
colorM);
r +=
GetResult1 (colorA, colorB, colorL, colorO,
colorP);
if (r > 0)
product2 = colorA;
else if (r < 0)
product2 = colorB;
else {
product2 =
Q_INTERPOLATE (colorA, colorB, colorC,
colorD);
}
}
} else {
product2 = Q_INTERPOLATE (colorA, colorB, colorC, colorD);
if ((colorA == colorC) && (colorA == colorF)
&& (colorB != colorE) && (colorB == colorJ)) {
product = colorA;
} else if ((colorB == colorE) && (colorB == colorD)
&& (colorA != colorF) && (colorA == colorI)) {
product = colorB;
} else {
product = INTERPOLATE (colorA, colorB);
}
if ((colorA == colorB) && (colorA == colorH)
&& (colorG != colorC) && (colorC == colorM)) {
product1 = colorA;
} else if ((colorC == colorG) && (colorC == colorD)
&& (colorA != colorH) && (colorA == colorI)) {
product1 = colorC;
} else {
product1 = INTERPOLATE (colorA, colorC);
}
}
*(dP) = colorA;
*(dP + 1) = product;
*(dP + (dstPitch >> 2)) = product1;
*(dP + (dstPitch >> 2) + 1) = product2;
bP += inc_bP;
dP += 2;
} // end of for ( finish= width etc..)
srcPtr += srcPitch;
dstPtr += dstPitch << 1;
// deltaPtr += srcPitch;
} // endof: for (height; height; height--)
}
static uint32_t Bilinear (uint32_t A, uint32_t B, uint32_t x)
{
unsigned long areaA, areaB;
unsigned long result;
if (A == B)
return A;
areaB = (x >> 11) & 0x1f; // reduce 16 bit fraction to 5 bits
areaA = 0x20 - areaB;
A = (A & redblueMask) | ((A & greenMask) << 16);
B = (B & redblueMask) | ((B & greenMask) << 16);
result = ((areaA * A) + (areaB * B)) >> 5;
return (result & redblueMask) | ((result >> 16) & greenMask);
}
static uint32_t Bilinear4 (uint32_t A, uint32_t B, uint32_t C, uint32_t D, uint32_t x,
uint32_t y)
{
unsigned long areaA, areaB, areaC, areaD;
unsigned long result, xy;
x = (x >> 11) & 0x1f;
y = (y >> 11) & 0x1f;
xy = (x * y) >> 5;
A = (A & redblueMask) | ((A & greenMask) << 16);
B = (B & redblueMask) | ((B & greenMask) << 16);
C = (C & redblueMask) | ((C & greenMask) << 16);
D = (D & redblueMask) | ((D & greenMask) << 16);
areaA = 0x20 + xy - x - y;
areaB = x - xy;
areaC = y - xy;
areaD = xy;
result = ((areaA * A) + (areaB * B) + (areaC * C) + (areaD * D)) >> 5;
return (result & redblueMask) | ((result >> 16) & greenMask);
}
void Scale_2xSaI (uint8_t *srcPtr, uint32_t srcPitch, uint8_t * /* deltaPtr */,
uint8_t *dstPtr, uint32_t dstPitch,
uint32_t dstWidth, uint32_t dstHeight, int width, int height)
{
uint8_t *dP;
uint16_t *bP;
uint32_t w;
uint32_t h;
uint32_t dw;
uint32_t dh;
uint32_t hfinish;
uint32_t wfinish;
uint32_t Nextline = srcPitch >> 1;
wfinish = (width - 1) << 16; // convert to fixed point
dw = wfinish / (dstWidth - 1);
hfinish = (height - 1) << 16; // convert to fixed point
dh = hfinish / (dstHeight - 1);
for (h = 0; h < hfinish; h += dh) {
uint32_t y1, y2;
y1 = h & 0xffff; // fraction part of fixed point
bP = (uint16_t *) (srcPtr + ((h >> 16) * srcPitch));
dP = dstPtr;
y2 = 0x10000 - y1;
w = 0;
for (; w < wfinish;) {
uint32_t A, B, C, D;
uint32_t E, F, G, H;
uint32_t I, J, K, L;
uint32_t x1, x2, a1, f1, f2;
uint32_t position, product1;
position = w >> 16;
A = bP[position]; // current pixel
B = bP[position + 1]; // next pixel
C = bP[position + Nextline];
D = bP[position + Nextline + 1];
E = bP[position - Nextline];
F = bP[position - Nextline + 1];
G = bP[position - 1];
H = bP[position + Nextline - 1];
I = bP[position + 2];
J = bP[position + Nextline + 2];
K = bP[position + Nextline + Nextline];
L = bP[position + Nextline + Nextline + 1];
x1 = w & 0xffff; // fraction part of fixed point
x2 = 0x10000 - x1;
/*0*/
if (A == B && C == D && A == C)
product1 = A;
else /*1*/ if (A == D && B != C) {
f1 = (x1 >> 1) + (0x10000 >> 2);
f2 = (y1 >> 1) + (0x10000 >> 2);
if (y1 <= f1 && A == J && A != E) // close to B
{
a1 = f1 - y1;
product1 = Bilinear (A, B, a1);
} else if (y1 >= f1 && A == G && A != L) // close to C
{
a1 = y1 - f1;
product1 = Bilinear (A, C, a1);
}
else if (x1 >= f2 && A == E && A != J) // close to B
{
a1 = x1 - f2;
product1 = Bilinear (A, B, a1);
}
else if (x1 <= f2 && A == L && A != G) // close to C
{
a1 = f2 - x1;
product1 = Bilinear (A, C, a1);
}
else if (y1 >= x1) // close to C
{
a1 = y1 - x1;
product1 = Bilinear (A, C, a1);
}
else if (y1 <= x1) // close to B
{
a1 = x1 - y1;
product1 = Bilinear (A, B, a1);
}
}
else
/*2*/
if (B == C && A != D)
{
f1 = (x1 >> 1) + (0x10000 >> 2);
f2 = (y1 >> 1) + (0x10000 >> 2);
if (y2 >= f1 && B == H && B != F) // close to A
{
a1 = y2 - f1;
product1 = Bilinear (B, A, a1);
}
else if (y2 <= f1 && B == I && B != K) // close to D
{
a1 = f1 - y2;
product1 = Bilinear (B, D, a1);
}
else if (x2 >= f2 && B == F && B != H) // close to A
{
a1 = x2 - f2;
product1 = Bilinear (B, A, a1);
}
else if (x2 <= f2 && B == K && B != I) // close to D
{
a1 = f2 - x2;
product1 = Bilinear (B, D, a1);
}
else if (y2 >= x1) // close to A
{
a1 = y2 - x1;
product1 = Bilinear (B, A, a1);
}
else if (y2 <= x1) // close to D
{
a1 = x1 - y2;
product1 = Bilinear (B, D, a1);
}
}
/*3*/
else
{
product1 = Bilinear4 (A, B, C, D, x1, y1);
}
//end First Pixel
*(uint32_t *) dP = product1;
dP += 2;
w += dw;
}
dstPtr += dstPitch;
}
}