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QtBiomeVisualiser: Switched caching to entire regions.

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This speeds up the rendering preparation for small zooms.
This commit is contained in:
Mattes D
2014-10-27 23:58:09 +01:00
parent cbb637187e
commit c53b7e5d38
15 changed files with 409 additions and 249 deletions
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42
Tools/QtBiomeVisualiser/BiomeView.cpp
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@@ -1,8 +1,8 @@
#include "Globals.h"
#include "BiomeView.h"
#include "QtChunk.h"
#include <QPainter>
#include <QResizeEvent>
#include "Region.h"
@@ -40,7 +40,7 @@ BiomeView::BiomeView(QWidget * parent) :
redraw();
// Add a chunk-update callback mechanism:
connect(&m_Cache, SIGNAL(chunkAvailable(int, int)), this, SLOT(chunkAvailable(int, int)));
connect(&m_Cache, SIGNAL(regionAvailable(int, int)), this, SLOT(regionAvailable(int, int)));
// Allow mouse and keyboard interaction:
setFocusPolicy(Qt::StrongFocus);
@@ -143,9 +143,15 @@ void BiomeView::redraw()
void BiomeView::chunkAvailable(int a_ChunkX, int a_ChunkZ)
void BiomeView::regionAvailable(int a_RegionX, int a_RegionZ)
{
drawChunk(a_ChunkX, a_ChunkZ);
for (int z = 0; z < 32; z++)
{
for (int x = 0; x < 32; x++)
{
drawChunk(a_RegionX * 32 + x, a_RegionZ * 32 + z);
}
}
update();
}
@@ -175,8 +181,11 @@ void BiomeView::drawChunk(int a_ChunkX, int a_ChunkZ)
return;
}
//fetch the chunk:
ChunkPtr chunk = m_Cache.fetch(a_ChunkX, a_ChunkZ);
// Fetch the region:
int regionX;
int regionZ;
Region::chunkToRegion(a_ChunkX, a_ChunkZ, regionX, regionZ);
RegionPtr region = m_Cache.fetch(regionX, regionZ);
// Figure out where on the screen this chunk should be drawn:
// first find the center chunk
@@ -228,9 +237,15 @@ void BiomeView::drawChunk(int a_ChunkX, int a_ChunkZ)
// If the chunk is valid, use its data; otherwise use the empty placeholder:
const uchar * src = m_EmptyChunkImage;
if (chunk.get() != nullptr)
if (region.get() != nullptr)
{
src = chunk->getImage();
int relChunkX = a_ChunkX - regionX * 32;
int relChunkZ = a_ChunkZ - regionZ * 32;
Chunk & chunk = region->getRelChunk(relChunkX, relChunkZ);
if (chunk.isValid())
{
src = chunk.getImage();
}
}
// Blit or scale-blit the image:
@@ -317,11 +332,12 @@ void BiomeView::mouseMoveEvent(QMouseEvent * a_Event)
// Update the status bar info text:
int blockX = floor((a_Event->x() - width() / 2) / m_Zoom + m_X);
int blockZ = floor((a_Event->y() - height() / 2) / m_Zoom + m_Z);
int chunkX, chunkZ;
int relX = blockX, relY, relZ = blockZ;
cChunkDef::AbsoluteToRelative(relX, relY, relZ, chunkX, chunkZ);
auto chunk = m_Cache.fetch(chunkX, chunkZ);
int biome = (chunk.get() != nullptr) ? chunk->getBiome(relX, relZ) : biInvalidBiome;
int regionX, regionZ;
Region::blockToRegion(blockX, blockZ, regionX, regionZ);
int relX = blockX - regionX * 512;
int relZ = blockZ - regionZ * 512;
auto region = m_Cache.fetch(regionX, regionZ);
int biome = (region.get() != nullptr) ? region->getRelBiome(relX, relZ) : biInvalidBiome;
emit hoverChanged(blockX, blockZ, biome);
}