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match MxTransitionManager::MosaicTransition() (#658)

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Ramen2X
2024-03-11 17:33:43 -04:00
committed by GitHub
parent 7659db49e7
commit 121708a574
1 changed files with 75 additions and 75 deletions
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150
LEGO1/lego/legoomni/src/common/mxtransitionmanager.cpp
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@@ -258,99 +258,99 @@ void MxTransitionManager::MosaicTransition()
EndTransition(TRUE); EndTransition(TRUE);
return; return;
} }
else {
if (m_animationTimer == 0) {
if (m_animationTimer == 0) { // Same init/shuffle steps as the dissolve transition, except that
// Same init/shuffle steps as the dissolve transition, except that // we are using big blocky pixels and only need 64 columns.
// we are using big blocky pixels and only need 64 columns. MxS32 i;
MxS32 i; for (i = 0; i < 64; i++) {
for (i = 0; i < 64; i++) { m_columnOrder[i] = i;
m_columnOrder[i] = i;
}
for (i = 0; i < 64; i++) {
MxS32 swap = rand() % 64;
MxU16 t = m_columnOrder[i];
m_columnOrder[i] = m_columnOrder[swap];
m_columnOrder[swap] = t;
}
// The same is true here. We only need 48 rows.
for (i = 0; i < 48; i++) {
m_randomShift[i] = rand() % 64;
}
}
// Run one tick of the animation
DDSURFACEDESC ddsd;
memset(&ddsd, 0, sizeof(ddsd));
ddsd.dwSize = sizeof(ddsd);
HRESULT res = m_ddSurface->Lock(NULL, &ddsd, 1, NULL);
if (res == DDERR_SURFACELOST) {
m_ddSurface->Restore();
res = m_ddSurface->Lock(NULL, &ddsd, 1, NULL);
}
if (res == DD_OK) {
SubmitCopyRect(&ddsd);
for (MxS32 col = 0; col < 64; col++) {
// Select 4 columns on each tick
if (m_animationTimer * 4 > m_columnOrder[col]) {
continue;
} }
if (m_animationTimer * 4 + 3 < m_columnOrder[col]) { for (i = 0; i < 64; i++) {
continue; MxS32 swap = rand() % 64;
MxU16 t = m_columnOrder[i];
m_columnOrder[i] = m_columnOrder[swap];
m_columnOrder[swap] = t;
} }
for (MxS32 row = 0; row < 48; row++) { // The same is true here. We only need 48 rows.
// To do the pixelation, we subdivide the 640x480 surface into for (i = 0; i < 48; i++) {
// 10x10 pixel blocks. At the chosen block, we sample the top-leftmost m_randomShift[i] = rand() % 64;
// color and set the other 99 pixels to that value. }
}
// First, get the offset of the 10x10 block that we will sample for this row. // Run one tick of the animation
MxS32 xShift = 10 * ((m_randomShift[row] + col) % 64); DDSURFACEDESC ddsd;
memset(&ddsd, 0, sizeof(ddsd));
ddsd.dwSize = sizeof(ddsd);
// Combine xShift with this value to target the correct location in the buffer. HRESULT res = m_ddSurface->Lock(NULL, &ddsd, 1, NULL);
MxS32 bytesPerPixel = ddsd.ddpfPixelFormat.dwRGBBitCount / 8; if (res == DDERR_SURFACELOST) {
m_ddSurface->Restore();
res = m_ddSurface->Lock(NULL, &ddsd, 1, NULL);
}
// Seek to the sample position. if (res == DD_OK) {
MxU8* source = (MxU8*) ddsd.lpSurface + 10 * row * ddsd.lPitch + bytesPerPixel * xShift; SubmitCopyRect(&ddsd);
// Sample byte or word depending on display mode. for (MxS32 col = 0; col < 64; col++) {
MxU32 sample = bytesPerPixel == 1 ? *source : *(MxU16*) source; // Select 4 columns on each tick
if (m_animationTimer * 4 > m_columnOrder[col]) {
continue;
}
// For each of the 10 rows in the 10x10 square: if (m_animationTimer * 4 + 3 < m_columnOrder[col]) {
for (MxS32 k = 10 * row; k < 10 * row + 10; k++) { continue;
if (ddsd.ddpfPixelFormat.dwRGBBitCount == 8) { }
MxU8* pos = (MxU8*) ddsd.lpSurface + k * ddsd.lPitch + xShift;
for (MxS32 tt = 0; tt < 10; tt++) { for (MxS32 row = 0; row < 48; row++) {
pos[tt] = sample; // To do the mosaic effect, we subdivide the 640x480 surface into
// 10x10 pixel blocks. At the chosen block, we sample the top-leftmost
// color and set the other 99 pixels to that value.
// First, get the offset of the 10x10 block that we will sample for this row.
MxS32 xShift = 10 * ((m_randomShift[row] + col) % 64);
// Combine xShift with this value to target the correct location in the buffer.
MxS32 bytesPerPixel = ddsd.ddpfPixelFormat.dwRGBBitCount / 8;
// Seek to the sample position.
MxU8* source = (MxU8*) ddsd.lpSurface + 10 * row * ddsd.lPitch + bytesPerPixel * xShift;
// Sample byte or word depending on display mode.
MxU32 sample = bytesPerPixel == 1 ? *source : *(MxU16*) source;
// For each of the 10 rows in the 10x10 square:
for (MxS32 k = 10 * row; k < 10 * row + 10; k++) {
if (ddsd.ddpfPixelFormat.dwRGBBitCount == 8) {
// Optimization: If the pixel is only one byte, we can use memset
MxU16* pos = (MxU16*) ((MxU8*) ddsd.lpSurface + k * ddsd.lPitch + xShift);
memset(pos, sample, 10);
} }
} else {
else { // Need to double xShift because it measures pixels not bytes
// Need to double xShift because it measures pixels not bytes MxU16* pos = (MxU16*) ((MxU8*) ddsd.lpSurface + k * ddsd.lPitch + 2 * xShift);
MxU16* pos = (MxU16*) ((MxU8*) ddsd.lpSurface + k * ddsd.lPitch + 2 * xShift);
for (MxS32 tt = 0; tt < 10; tt++) { for (MxS32 tt = 0; tt < 10; tt++) {
pos[tt] = sample; pos[tt] = sample;
}
} }
} }
} }
} }
SetupCopyRect(&ddsd);
m_ddSurface->Unlock(ddsd.lpSurface);
if (VideoManager()->GetVideoParam().Flags().GetFlipSurfaces()) {
LPDIRECTDRAWSURFACE surf = VideoManager()->GetDisplaySurface()->GetDirectDrawSurface1();
surf->BltFast(0, 0, m_ddSurface, &g_fullScreenRect, DDBLTFAST_WAIT);
}
m_animationTimer++;
} }
SetupCopyRect(&ddsd);
m_ddSurface->Unlock(ddsd.lpSurface);
if (VideoManager()->GetVideoParam().Flags().GetFlipSurfaces()) {
LPDIRECTDRAWSURFACE surf = VideoManager()->GetDisplaySurface()->GetDirectDrawSurface1();
surf->BltFast(0, 0, m_ddSurface, &g_fullScreenRect, DDBLTFAST_WAIT);
}
m_animationTimer++;
} }
} }