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Use sprites to render things on screen (#478)

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Anders Jenbo 2025-07-04 21:27:01 +02:00 committed by GitHub
parent af045eefed
commit 77c832c237
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1 changed files with 57 additions and 62 deletions
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119
LEGO1/omni/src/video/mxdisplaysurface.cpp
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@ -396,86 +396,81 @@ void MxDisplaySurface::VTable0x28(
DDSURFACEDESC ddsd;
memset(&ddsd, 0, sizeof(ddsd));
ddsd.dwSize = sizeof(ddsd);
ddsd.dwFlags = DDSD_WIDTH | DDSD_HEIGHT | DDSD_PIXELFORMAT | DDSD_CAPS;
ddsd.dwWidth = p_width;
ddsd.dwHeight = p_height;
ddsd.ddpfPixelFormat = m_surfaceDesc.ddpfPixelFormat;
ddsd.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN;
HRESULT hr = m_ddSurface2->Lock(NULL, &ddsd, DDLOCK_WAIT | DDLOCK_WRITEONLY, NULL);
LPDIRECTDRAWSURFACE tempSurface = nullptr;
LPDIRECTDRAW draw = MVideoManager()->GetDirectDraw();
HRESULT hr = draw->CreateSurface(&ddsd, &tempSurface, nullptr);
if (hr != DD_OK || !tempSurface) {
return;
}
DDCOLORKEY colorKey;
colorKey.dwColorSpaceLowValue = colorKey.dwColorSpaceHighValue = RGB555_CREATE(0x1f, 0, 0x1f);
tempSurface->SetColorKey(DDCKEY_SRCBLT, &colorKey);
DDSURFACEDESC tempDesc;
memset(&tempDesc, 0, sizeof(tempDesc));
tempDesc.dwSize = sizeof(tempDesc);
hr = tempSurface->Lock(NULL, &tempDesc, DDLOCK_WAIT | DDLOCK_WRITEONLY, NULL);
if (hr == DDERR_SURFACELOST) {
m_ddSurface2->Restore();
hr = m_ddSurface2->Lock(NULL, &ddsd, DDLOCK_WAIT | DDLOCK_WRITEONLY, NULL);
tempSurface->Restore();
hr = tempSurface->Lock(NULL, &tempDesc, DDLOCK_WAIT | DDLOCK_WRITEONLY, NULL);
}
if (hr != DD_OK) {
tempSurface->Release();
return;
}
MxU8* data = p_bitmap->GetStart(p_left, p_top);
MxS32 bytesPerPixel = m_surfaceDesc.ddpfPixelFormat.dwRGBBitCount / 8;
if (m_videoParam.Flags().GetF1bit3()) {
p_bottom *= 2;
p_right *= 2;
MxU8* surface = (MxU8*) tempDesc.lpSurface;
MxU8* surface = (MxU8*) ddsd.lpSurface + (bytesPerPixel * p_right) + (p_bottom * ddsd.lPitch);
MxLong stride = -p_width + GetAdjustedStride(p_bitmap);
MxS32 copyWidth = p_width * bytesPerPixel * 2;
MxLong length = -(copyWidth) + ddsd.lPitch;
MxLong stride = (bytesPerPixel == 1) ? GetAdjustedStride(p_bitmap) : -p_width + GetAdjustedStride(p_bitmap);
MxLong length = tempDesc.lPitch - (p_width * bytesPerPixel);
while (p_height--) {
MxU8* surfaceBefore = surface;
for (MxS32 i = 0; i < p_width; i++) {
if (bytesPerPixel == 1) {
surface[0] = surface[1] = *data;
}
else if (bytesPerPixel == 2) {
((MxU16*) surface)[0] = ((MxU16*) surface)[1] = m_16bitPal[*data];
}
else {
((MxU32*) surface)[0] = ((MxU32*) surface)[1] = m_32bitPal[*data];
}
surface += bytesPerPixel * 2;
data++;
}
if (stride || length != ddsd.lPitch - copyWidth) {
data += stride;
surface += length;
}
memcpy(surface, surfaceBefore, copyWidth);
surface += ddsd.lPitch;
for (MxS32 i = 0; i < p_height; i++) {
if (bytesPerPixel == 1) {
memcpy(surface, data, p_width);
surface += length + p_width;
}
else if (bytesPerPixel == 2) {
for (MxS32 j = 0; j < p_width; j++) {
*(MxU16*) surface = m_16bitPal[*data++];
surface += bytesPerPixel;
}
surface += length;
}
else {
for (MxS32 j = 0; j < p_width; j++) {
*(MxU32*) surface = m_32bitPal[*data++];
surface += bytesPerPixel;
}
surface += length;
}
data += stride;
}
tempSurface->Unlock(NULL);
if (m_videoParam.Flags().GetF1bit3()) {
RECT destRect = {p_right, p_bottom, p_right + p_width * 2, p_bottom + p_height * 2};
m_ddSurface2->Blt(&destRect, tempSurface, NULL, DDBLT_WAIT | DDBLT_KEYSRC, NULL);
}
else {
MxU8* surface = (MxU8*) ddsd.lpSurface + (bytesPerPixel * p_right) + (p_bottom * ddsd.lPitch);
MxLong stride = (bytesPerPixel == 1) ? GetAdjustedStride(p_bitmap) : -p_width + GetAdjustedStride(p_bitmap);
MxLong length = ddsd.lPitch - (p_width * bytesPerPixel);
for (MxS32 i = 0; i < p_height; i++) {
if (bytesPerPixel == 1) {
memcpy(surface, data, p_width);
surface += length + p_width;
}
else if (bytesPerPixel == 2) {
for (MxS32 j = 0; j < p_width; j++) {
*(MxU16*) surface = m_16bitPal[*data++];
surface += bytesPerPixel;
}
surface += length;
}
else {
for (MxS32 j = 0; j < p_width; j++) {
*(MxU32*) surface = m_32bitPal[*data++];
surface += bytesPerPixel;
}
surface += length;
}
data += stride;
}
m_ddSurface2->BltFast(p_right, p_bottom, tempSurface, NULL, DDBLTFAST_WAIT | DDBLTFAST_SRCCOLORKEY);
}
m_ddSurface2->Unlock(ddsd.lpSurface);
tempSurface->Release();
}
// FUNCTION: LEGO1 0x100bb1d0