void Screen::scaleImageGood(byte *dst, uint16 dstPitch, uint16 dstWidth, uint16 dstHeight, byte *src, uint16 srcPitch, uint16 srcWidth, uint16 srcHeight, byte *backBuf, int16 bbXPos, int16 bbYPos) {
for (int y = 0; y < dstHeight; y++) {
for (int x = 0; x < dstWidth; x++) {
uint8 c1, c2, c3, c4;
uint32 xPos = (x * srcWidth) / dstWidth;
uint32 yPos = (y * srcHeight) / dstHeight;
uint32 xFrac = dstWidth - (x * srcWidth) % dstWidth;
uint32 yFrac = dstHeight - (y * srcHeight) % dstHeight;
byte *srcPtr = src + yPos * srcPitch + xPos;
bool transparent = true;
if (*srcPtr) {
c1 = *srcPtr;
transparent = false;
} else {
if (bbXPos + x >= 0 &&
bbXPos + x < RENDERWIDE &&
bbYPos + y >= MENUDEEP &&
bbYPos + y < MENUDEEP + RENDERDEEP) {
c1 = *(backBuf + _screenWide * (bbYPos + y) + bbXPos + x);
} else {
c1 = 0;
}
}
if (x < dstWidth - 1) {
if (*(srcPtr + 1)) {
c2 = *(srcPtr + 1);
transparent = false;
} else {
if (bbXPos + x + 1 >= 0 &&
bbXPos + x + 1 < RENDERWIDE &&
bbYPos + y >= MENUDEEP &&
bbYPos + y + 1 < MENUDEEP + RENDERDEEP) {
c2 = *(backBuf + _screenWide * (bbYPos + y) + bbXPos + x + 1);
} else {
c2 = c1;
}
}
} else {
c2 = c1;
}
if (y < dstHeight - 1) {
if (*(srcPtr + srcPitch)) {
c3 = *(srcPtr + srcPitch);
transparent = false;
} else {
if (bbXPos + x >= 0 &&
bbXPos + x < RENDERWIDE &&
bbYPos + y + 1 >= MENUDEEP &&
bbYPos + y + 1 < MENUDEEP + RENDERDEEP) {
c3 = *(backBuf + _screenWide * (bbYPos + y + 1) + bbXPos);
} else {
c3 = c1;
}
}
} else {
c3 = c1;
}
if (x < dstWidth - 1 && y < dstHeight - 1) {
if (*(srcPtr + srcPitch + 1)) {
c4 = *(srcPtr + srcPitch + 1);
transparent = false;
} else {
if (bbXPos + x + 1 >= 0 &&
bbXPos + x + 1 < RENDERWIDE &&
bbYPos + y + 1 >= MENUDEEP &&
bbYPos + y + 1 < MENUDEEP + RENDERDEEP) {
c4 = *(backBuf + _screenWide * (bbYPos + y + 1) + bbXPos + x + 1);
} else {
c4 = c3;
}
}
} else {
c4 = c3;
}
if (!transparent) {
uint32 r1 = _palette[c1 * 3 + 0];
uint32 g1 = _palette[c1 * 3 + 1];
uint32 b1 = _palette[c1 * 3 + 2];
uint32 r2 = _palette[c2 * 3 + 0];
uint32 g2 = _palette[c2 * 3 + 1];
uint32 b2 = _palette[c2 * 3 + 2];
uint32 r3 = _palette[c3 * 3 + 0];
uint32 g3 = _palette[c3 * 3 + 1];
uint32 b3 = _palette[c3 * 3 + 2];
uint32 r4 = _palette[c4 * 3 + 0];
uint32 g4 = _palette[c4 * 3 + 1];
uint32 b4 = _palette[c4 * 3 + 2];
uint32 r5 = (r1 * xFrac + r2 * (dstWidth - xFrac)) / dstWidth;
uint32 g5 = (g1 * xFrac + g2 * (dstWidth - xFrac)) / dstWidth;
uint32 b5 = (b1 * xFrac + b2 * (dstWidth - xFrac)) / dstWidth;
uint32 r6 = (r3 * xFrac + r4 * (dstWidth - xFrac)) / dstWidth;
uint32 g6 = (g3 * xFrac + g4 * (dstWidth - xFrac)) / dstWidth;
uint32 b6 = (b3 * xFrac + b4 * (dstWidth - xFrac)) / dstWidth;
uint32 r = (r5 * yFrac + r6 * (dstHeight - yFrac)) / dstHeight;
uint32 g = (g5 * yFrac + g6 * (dstHeight - yFrac)) / dstHeight;
uint32 b = (b5 * yFrac + b6 * (dstHeight - yFrac)) / dstHeight;
dst[y * dstWidth + x] = quickMatch(r, g, b);
} else
dst[y * dstWidth + x] = 0;
}
}
}
void Screen::scaleImageGood(byte *dst, uint16 dstPitch, uint16 dstWidth, uint16 dstHeight, byte *src, uint16 srcPitch, uint16 srcWidth, uint16 srcHeight, byte *backbuf) {
for (int y = 0; y < dstHeight; y++) {
for (int x = 0; x < dstWidth; x++) {
uint8 c1, c2, c3, c4;
uint32 xPos = (x * srcWidth) / dstWidth;
uint32 yPos = (y * srcHeight) / dstHeight;
uint32 xFrac = dstWidth - (x * srcWidth) % dstWidth;
uint32 yFrac = dstHeight - (y * srcHeight) % dstHeight;
byte *srcPtr = src + yPos * srcPitch + xPos;
byte *backPtr = backbuf + y * _screenWide + x;
bool transparent = true;
if (*srcPtr) {
c1 = *srcPtr;
transparent = false;
} else
c1 = *backPtr;
if (x < dstWidth - 1) {
if (*(srcPtr + 1)) {
c2 = *(srcPtr + 1);
transparent = false;
} else
c2 = *(backPtr + 1);
} else
c2 = c1;
if (y < dstHeight - 1) {
if (*(srcPtr + srcPitch)) {
c3 = *(srcPtr + srcPitch);
transparent = false;
} else
c3 = *(backPtr + _screenWide);
} else
c3 = c1;
if (x < dstWidth - 1 && y < dstHeight - 1) {
if (*(srcPtr + srcPitch + 1)) {
c4 = *(srcPtr + srcPitch + 1);
transparent = false;
} else
c4 = *(backPtr + _screenWide + 1);
} else
c4 = c3;
if (!transparent) {
uint32 r1 = _palette[c1 * 4 + 0];
uint32 g1 = _palette[c1 * 4 + 1];
uint32 b1 = _palette[c1 * 4 + 2];
uint32 r2 = _palette[c2 * 4 + 0];
uint32 g2 = _palette[c2 * 4 + 1];
uint32 b2 = _palette[c2 * 4 + 2];
uint32 r3 = _palette[c3 * 4 + 0];
uint32 g3 = _palette[c3 * 4 + 1];
uint32 b3 = _palette[c3 * 4 + 2];
uint32 r4 = _palette[c4 * 4 + 0];
uint32 g4 = _palette[c4 * 4 + 1];
uint32 b4 = _palette[c4 * 4 + 2];
uint32 r5 = (r1 * xFrac + r2 * (dstWidth - xFrac)) / dstWidth;
uint32 g5 = (g1 * xFrac + g2 * (dstWidth - xFrac)) / dstWidth;
uint32 b5 = (b1 * xFrac + b2 * (dstWidth - xFrac)) / dstWidth;
uint32 r6 = (r3 * xFrac + r4 * (dstWidth - xFrac)) / dstWidth;
uint32 g6 = (g3 * xFrac + g4 * (dstWidth - xFrac)) / dstWidth;
uint32 b6 = (b3 * xFrac + b4 * (dstWidth - xFrac)) / dstWidth;
uint32 r = (r5 * yFrac + r6 * (dstHeight - yFrac)) / dstHeight;
uint32 g = (g5 * yFrac + g6 * (dstHeight - yFrac)) / dstHeight;
uint32 b = (b5 * yFrac + b6 * (dstHeight - yFrac)) / dstHeight;
dst[y * dstWidth + x] = quickMatch(r, g, b);
} else
dst[y * dstWidth + x] = 0;
}
}
}