static HCURSOR CreateCompatibleCursor(FTexture *cursorpic)
{
int picwidth = cursorpic->GetWidth();
int picheight = cursorpic->GetHeight();
// Create bitmap masks for the cursor from the texture.
HDC dc = GetDC(NULL);
if (dc == NULL)
{
return nullptr;
}
HDC and_mask_dc = CreateCompatibleDC(dc);
HDC xor_mask_dc = CreateCompatibleDC(dc);
HBITMAP and_mask = CreateCompatibleBitmap(dc, 32, 32);
HBITMAP xor_mask = CreateCompatibleBitmap(dc, 32, 32);
ReleaseDC(NULL, dc);
SelectObject(and_mask_dc, and_mask);
SelectObject(xor_mask_dc, xor_mask);
// Initialize with an invisible cursor.
SelectObject(and_mask_dc, GetStockObject(WHITE_PEN));
SelectObject(and_mask_dc, GetStockObject(WHITE_BRUSH));
Rectangle(and_mask_dc, 0, 0, 32, 32);
SelectObject(xor_mask_dc, GetStockObject(BLACK_PEN));
SelectObject(xor_mask_dc, GetStockObject(BLACK_BRUSH));
Rectangle(xor_mask_dc, 0, 0, 32, 32);
FBitmap bmp;
const uint8_t *pixels;
bmp.Create(picwidth, picheight);
cursorpic->CopyTrueColorPixels(&bmp, 0, 0);
pixels = bmp.GetPixels();
// Copy color data from the source texture to the cursor bitmaps.
for (int y = 0; y < picheight; ++y)
{
for (int x = 0; x < picwidth; ++x)
{
const uint8_t *bgra = &pixels[x*4 + y*bmp.GetPitch()];
if (bgra[3] != 0)
{
SetPixelV(and_mask_dc, x, y, RGB(0,0,0));
SetPixelV(xor_mask_dc, x, y, RGB(bgra[2], bgra[1], bgra[0]));
}
}
}
DeleteDC(and_mask_dc);
DeleteDC(xor_mask_dc);
// Create the cursor from the bitmaps.
return CreateBitmapCursor(cursorpic->LeftOffset, cursorpic->TopOffset, and_mask, xor_mask);
}
int FMultiPatchTexture::CopyTrueColorPixels(FBitmap *bmp, int x, int y, int rotate, FCopyInfo *inf)
{
int retv = -1;
if (bRedirect)
{ // Redirect straight to the real texture's routine.
return Parts[0].Texture->CopyTrueColorPixels(bmp, x, y, rotate, inf);
}
if (rotate != 0 || (inf != NULL && ((inf->op != OP_OVERWRITE && inf->op != OP_COPY) || inf->blend != BLEND_NONE)))
{ // We are doing some sort of fancy stuff to the destination bitmap, so composite to
// a temporary bitmap, and copy that.
FBitmap tbmp;
if (tbmp.Create(Width, Height))
{
retv = MAX(retv, CopyTrueColorPixels(&tbmp, 0, 0, 0));
bmp->CopyPixelDataRGB(x, y, tbmp.GetPixels(), Width, Height,
4, tbmp.GetPitch(), rotate, CF_BGRA, inf);
}
return retv;
}
// When compositing a multipatch texture with multipatch parts,
// drawing must be restricted to the actual area which is covered by this texture.
FClipRect saved_cr = bmp->GetClipRect();
bmp->IntersectClipRect(x, y, Width, Height);
if (inf != NULL && inf->op == OP_OVERWRITE)
{
bmp->Zero();
}
for(int i = 0; i < NumParts; i++)
{
int ret = -1;
FCopyInfo info;
if (Parts[i].Texture->bHasCanvas) continue; // cannot use camera textures as patch.
memset (&info, 0, sizeof(info));
info.alpha = Parts[i].Alpha;
info.invalpha = BLENDUNIT - info.alpha;
info.op = ECopyOp(Parts[i].op);
PalEntry b = Parts[i].Blend;
if (b.a == 0 && b != BLEND_NONE)
{
info.blend = EBlend(b.d);
}
else if (b.a != 0)
{
if (b.a == 255)
{
info.blendcolor[0] = b.r * BLENDUNIT / 255;
info.blendcolor[1] = b.g * BLENDUNIT / 255;
info.blendcolor[2] = b.b * BLENDUNIT / 255;
info.blend = BLEND_MODULATE;
}
else
{
blend_t blendalpha = b.a * BLENDUNIT / 255;
info.blendcolor[0] = b.r * blendalpha;
info.blendcolor[1] = b.g * blendalpha;
info.blendcolor[2] = b.b * blendalpha;
info.blendcolor[3] = FRACUNIT - blendalpha;
info.blend = BLEND_OVERLAY;
}
}
if (Parts[i].Translation != NULL)
{ // Using a translation forces downconversion to the base palette
ret = Parts[i].Texture->CopyTrueColorTranslated(bmp, x+Parts[i].OriginX, y+Parts[i].OriginY, Parts[i].Rotate, Parts[i].Translation->Palette, &info);
}
else
{
ret = Parts[i].Texture->CopyTrueColorPixels(bmp, x+Parts[i].OriginX, y+Parts[i].OriginY, Parts[i].Rotate, &info);
}
// treat -1 (i.e. unknown) as absolute. We have no idea if this may have overwritten previous info so a real check needs to be done.
if (ret == -1) retv = ret;
else if (retv != -1 && ret > retv) retv = ret;
}
// Restore previous clipping rectangle.
bmp->SetClipRect(saved_cr);
return retv;
}
