void C4SolidMask::PutTemporary(C4Rect where) {
if (!MaskPut || !pSolidMask || !pSolidMaskMatBuff) return;
where.Intersect(MaskPutRect);
// reput vehicle pixels
for (int y = where.y; y < where.y + where.Hgt; ++y) {
for (int x = where.x; x < where.x + where.Wdt; ++x) {
BYTE *pPix = pSolidMaskMatBuff +
(y - MaskPutRect.y + MaskPutRect.ty) * MatBuffPitch + x -
MaskPutRect.x + MaskPutRect.tx;
// only if mask was used here
if (*pPix != MCVehic) {
// put
assert(GBackPix(x, y) == *pPix);
_SBackPix(x, y, MCVehic);
}
}
}
}
void C4SolidMask::Repair(C4Rect where) {
if (!MaskPut || !pSolidMask || !pSolidMaskMatBuff) return;
where.Intersect(MaskPutRect);
// reput vehicle pixels
for (int y = where.y; y < where.y + where.Hgt; ++y) {
for (int x = where.x; x < where.x + where.Wdt; ++x) {
BYTE *pPix = pSolidMaskMatBuff +
(y - MaskPutRect.y + MaskPutRect.ty) * MatBuffPitch + x -
MaskPutRect.x + MaskPutRect.tx;
// only if mask was used here
if (*pPix != MCVehic) {
// record changed landscape in MatBuff
*pPix = GBackPix(x, y);
// put
_SBackPix(x, y, MCVehic);
}
}
}
}
void C4LandscapeRenderClassic::Update(C4Rect To, C4Landscape *pSource)
{
// clip to landscape size
To.Intersect(C4Rect(0,0,iWidth,iHeight));
// everything clipped?
if (To.Wdt<=0 || To.Hgt<=0) return;
if (!Surface32->Lock()) return;
// We clear the affected region here because ClearBoxDw allocates the
// main memory buffer for the box, so that only that box needs to be
// sent to the gpu, and not the whole texture, or every pixel
// separately. It's an important optimization.
Surface32->ClearBoxDw(To.x, To.y, To.Wdt, To.Hgt);
// do lightning
for (int32_t iX=To.x; iX<To.x+To.Wdt; ++iX)
{
int AboveDensity = 0, BelowDensity = 0;
for (int i = 1; i <= 8; ++i)
{
AboveDensity += pSource->GetPlacement(iX, To.y - i - 1);
BelowDensity += pSource->GetPlacement(iX, To.y + i - 1);
}
for (int32_t iY=To.y; iY<To.y+To.Hgt; ++iY)
{
AboveDensity -= pSource->GetPlacement(iX, iY - 9);
AboveDensity += pSource->GetPlacement(iX, iY - 1);
BelowDensity -= pSource->GetPlacement(iX, iY);
BelowDensity += pSource->GetPlacement(iX, iY + 8);
BYTE pix = pSource->_GetPix(iX, iY);
// Sky
if (!pix)
{
Surface32->SetPixDw(iX, iY, 0x00ffffff);
continue;
}
// get density
int iOwnDens = pSource->_GetPlacement(iX, iY);
if (!iOwnDens) continue;
iOwnDens *= 2;
iOwnDens += pSource->GetPlacement(iX + 1, iY) + pSource->GetPlacement(iX - 1, iY);
iOwnDens /= 4;
// get texture map entry for pixel
const C4TexMapEntry *pTex = pTexs->GetEntry(PixCol2Tex(pix));
assert(pTex);
// get texture contents
DWORD dwBackClr = 0u;
if (pTex) dwBackClr = pTex->GetPattern().PatternClr(iX, iY);
// get density of surrounding materials
int iCompareDens = AboveDensity / 8;
if (iOwnDens > iCompareDens)
{
// apply light
LightenClrBy(dwBackClr, std::min(30, 2 * (iOwnDens - iCompareDens)));
}
else if (iOwnDens < iCompareDens && iOwnDens < 30)
{
DarkenClrBy(dwBackClr, std::min(30, 2 * (iCompareDens - iOwnDens)));
}
iCompareDens = BelowDensity / 8;
if (iOwnDens > iCompareDens)
{
DarkenClrBy(dwBackClr, std::min(30, 2 * (iOwnDens - iCompareDens)));
}
Surface32->SetPixDw(iX, iY, dwBackClr);
}
}
Surface32->Unlock();
}
void C4LandscapeRenderGL::Update(C4Rect To, C4Landscape *pSource)
{
// clip to landscape size
To.Intersect(C4Rect(0,0,iWidth,iHeight));
// everything clipped?
if (To.Wdt<=0 || To.Hgt<=0) return;
// Lock surfaces
// We clear the affected region here because ClearBoxDw allocates the
// main memory buffer for the box, so that only that box needs to be
// sent to the gpu, and not the whole texture, or every pixel
// separately. It's an important optimization.
for (int i = 0; i < C4LR_SurfaceCount; i++)
{
if (!Surfaces[i]->Lock()) return;
Surfaces[i]->ClearBoxDw(To.x, To.y, To.Wdt, To.Hgt);
}
// Initialize up & down placement arrays. These arrays are always updated
// so that they contain the placement sums of C4LR_BiasDistanceY pixels
// above and below the current row.
int x, y;
int placementSumsWidth = C4LR_BiasDistanceX * 2 + To.Wdt;
int *placementSumsUp = new int [placementSumsWidth * 2];
int *placementSumsDown = placementSumsUp + placementSumsWidth;
for(x = 0; x < placementSumsWidth; x++)
{
placementSumsUp[x] = 0;
placementSumsDown[x] = 0;
if (To.x + x - C4LR_BiasDistanceX < 0 || To.x + x - C4LR_BiasDistanceX >= iWidth) continue;
for(y = 1; y <= std::min(C4LR_BiasDistanceY, To.y); y++)
placementSumsUp[x] += pSource->_GetPlacement(To.x+x-C4LR_BiasDistanceX, To.y-y);
for(y = 1; y <= std::min(C4LR_BiasDistanceY, iHeight - 1 - To.y); y++)
placementSumsDown[x] += pSource->_GetPlacement(To.x+x-C4LR_BiasDistanceX, To.y+y);
}
// Get tex refs (shortcut, we will use them quite heavily)
C4TexRef *texture[C4LR_SurfaceCount];
x = y = 0;
for(int i = 0; i < C4LR_SurfaceCount; i++)
texture[i] = Surfaces[i]->texture.get();
// Go through it from top to bottom
for(y = 0; y < To.Hgt; y++)
{
// Initialize left & right placement sums. These are meant to contain
// the placement sum of a (C4LR_BiasDistanceX, 2*C4LR_BiasDistanceY+1)
// rectangle left/right of the current pixel. So we initialise it to
// be correct at x=0. Note that the placementSum arrays don't contain
// information about the current row, therefore we need a special case
// for those pixels.
int sumLeft = 0, sumRight = 0;
for(x = 1; x <= std::min(C4LR_BiasDistanceX, To.x); x++)
sumLeft += pSource->_GetPlacement(To.x-x,To.y+y);
for(x = 1; x <= std::min(C4LR_BiasDistanceX, iWidth - 1 - To.x ); x++)
sumRight += pSource->_GetPlacement(To.x+x,To.y+y);
for (int i = 1; i <= C4LR_BiasDistanceX; i++) {
sumLeft += placementSumsUp[C4LR_BiasDistanceX - i];
sumLeft += placementSumsDown[C4LR_BiasDistanceX - i];
sumRight += placementSumsUp[C4LR_BiasDistanceX + i];
sumRight += placementSumsDown[C4LR_BiasDistanceX + i];
}
// Initialise up & down sums. Same principle as above, but slightly
// easier as we do not miss pixels if we just use the placement sums.
int sumUp = 0, sumDown = 0;
for (int i = -C4LR_BiasDistanceX; i <= C4LR_BiasDistanceX; i++) {
sumUp += placementSumsUp[C4LR_BiasDistanceX + i];
sumDown += placementSumsDown[C4LR_BiasDistanceX + i];
}
for(x = 0; x < To.Wdt; x++)
{
int pixel = pSource->_GetPix(To.x+x, To.y+y);
int placement = pSource->_GetPlacement(To.x+x, To.y+y);
// Calculate bias. The scale here is the size of the rectangle (see above)
const int horizontalFactor = C4LR_BiasDistanceX * (2 * C4LR_BiasDistanceY + 1);
int horizontalBias = std::max(0, placement * horizontalFactor - sumRight) -
std::max(0, placement * horizontalFactor - sumLeft);
const int verticalFactor = C4LR_BiasDistanceY * (2 * C4LR_BiasDistanceX + 1);
int verticalBias = std::max(0, placement * verticalFactor - sumDown) -
std::max(0, placement * verticalFactor - sumUp);
// Maximum placement differences that make a difference in the result, after which we are at the limits of
// what can be packed into a byte
const int maximumPlacementDifference = 40;
int horizontalBiasScaled = Clamp(horizontalBias * 127 / maximumPlacementDifference / horizontalFactor + 128, 0, 255);
int verticalBiasScaled = Clamp(verticalBias * 127 / maximumPlacementDifference / verticalFactor + 128, 0, 255);
// Collect data to save per pixel
unsigned char data[C4LR_SurfaceCount * 4];
memset(data, 0, sizeof(data));
data[C4LR_Material] = pixel;
data[C4LR_BiasX] = horizontalBiasScaled;
data[C4LR_BiasY] = verticalBiasScaled;
data[C4LR_Scaler] = CalculateScalerBitmask(x, y, To, pSource);
data[C4LR_Place] = placement;
for(int i = 0; i < C4LR_SurfaceCount; i++)
texture[i]->SetPix(To.x+x, To.y+y,
RGBA(data[i*4+0], data[i*4+1], data[i*4+2], data[i*4+3]));
// Update sums (last column would be out-of-bounds, and not
// necessary as we will re-initialise it for the next row)
if (x < To.Wdt - 1) {
sumLeft -= placementSumsUp[x] + placementSumsDown[x];
sumLeft += placementSumsUp[x + C4LR_BiasDistanceX] + placementSumsDown[x + C4LR_BiasDistanceX];
sumRight -= placementSumsUp[x + C4LR_BiasDistanceX + 1] + placementSumsDown[x + C4LR_BiasDistanceX + 1];
sumUp -= placementSumsUp[x];
sumDown -= placementSumsDown[x];
sumRight += placementSumsUp[x + 2 * C4LR_BiasDistanceX + 1] + placementSumsDown[x + 2 * C4LR_BiasDistanceX + 1];
sumUp += placementSumsUp[x + 2 * C4LR_BiasDistanceX + 1];
sumDown += placementSumsDown[x + 2 * C4LR_BiasDistanceX + 1];
}
// Update left & right for next pixel in line
if(x + To.x + 1 < iWidth)
sumRight -= pSource->_GetPlacement(To.x+x + 1, To.y+y);
if(To.x+x + C4LR_BiasDistanceX + 1 < iWidth)
sumRight += pSource->_GetPlacement(To.x+x + C4LR_BiasDistanceX + 1, To.y+y);
sumLeft += placement;
if(To.x+x - C4LR_BiasDistanceX >= 0)
sumLeft -= pSource->_GetPlacement(To.x+x - C4LR_BiasDistanceX, To.y+y);
// Update up & down arrays (for next line already)
if (To.x + x >= C4LR_BiasDistanceX) {
if (To.y + y + 1 < iHeight)
placementSumsDown[x] -= pSource->_GetPlacement(To.x + x - C4LR_BiasDistanceX, To.y + y + 1);
if (To.y + y + C4LR_BiasDistanceY + 1 < iHeight)
placementSumsDown[x] += pSource->_GetPlacement(To.x + x - C4LR_BiasDistanceX, To.y + y + C4LR_BiasDistanceY + 1);
if (To.y + y - C4LR_BiasDistanceY >= 0)
placementSumsUp[x] -= pSource->_GetPlacement(To.x + x - C4LR_BiasDistanceX, To.y + y - C4LR_BiasDistanceY);
placementSumsUp[x] += pSource->_GetPlacement(To.x + x - C4LR_BiasDistanceX, To.y + y);
}
}
// Finish updating up & down arrays for the next line
if (To.x + x >= C4LR_BiasDistanceX)
{
for (; x < std::min(placementSumsWidth, iWidth - To.x + C4LR_BiasDistanceX); x++) {
if (To.y + y + 1 < iHeight)
placementSumsDown[x] -= pSource->_GetPlacement(To.x + x - C4LR_BiasDistanceX, To.y + y + 1);
if (To.y + y + C4LR_BiasDistanceY + 1 < iHeight)
placementSumsDown[x] += pSource->_GetPlacement(To.x + x - C4LR_BiasDistanceX, To.y + y + C4LR_BiasDistanceY + 1);
if (To.y + y - C4LR_BiasDistanceY >= 0)
placementSumsUp[x] -= pSource->_GetPlacement(To.x + x - C4LR_BiasDistanceX, To.y + y - C4LR_BiasDistanceY);
placementSumsUp[x] += pSource->_GetPlacement(To.x + x - C4LR_BiasDistanceX, To.y + y);
}
}
}
// done
delete[] placementSumsUp;
for (int i = 0; i < C4LR_SurfaceCount; i++)
Surfaces[i]->Unlock();
}