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Bug 749357 - TiledThebesLayerOGL can draw un-rendered areas of tiles. r=chrislord

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This commit is contained in:
Benoit Girard 2012-04-30 10:19:17 -04:00
parent 293cde4260
commit 9177b22315
4 changed files with 28 additions and 19 deletions
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13
gfx/layers/opengl/ReusableTileStoreOGL.cpp
View File

@ -122,8 +122,8 @@ ReusableTileStoreOGL::HarvestTiles(TiledLayerBufferOGL* aVideoMemoryTiledBuffer,
TiledTexture removedTile;
if (aVideoMemoryTiledBuffer->RemoveTile(nsIntPoint(x, y), removedTile)) {
ReusableTiledTextureOGL* reusedTile =
new ReusableTiledTextureOGL(removedTile, tileRegion, tileSize,
aOldResolution);
new ReusableTiledTextureOGL(removedTile, nsIntPoint(x, y), tileRegion,
tileSize, aOldResolution);
mTiles.AppendElement(reusedTile);
}
#ifdef GFX_TILEDLAYER_PREF_WARNINGS
@ -196,12 +196,11 @@ ReusableTileStoreOGL::DrawTiles(TiledThebesLayerOGL* aLayer,
// semi-transparent layers.
// Similarly, if we have multiple tiles covering the same area, we will
// end up with rendering artifacts if the aLayer isn't opaque.
nsIntRect tileRect = tile->mTileRegion.GetBounds();
uint16_t tileStartX = tileRect.x % tile->mTileSize;
uint16_t tileStartY = tileRect.y % tile->mTileSize;
nsIntRect textureRect(tileStartX, tileStartY, tileRect.width, tileRect.height);
uint16_t tileStartX = tile->mTileOrigin.x % tile->mTileSize;
uint16_t tileStartY = tile->mTileOrigin.y % tile->mTileSize;
nsIntPoint tileOffset(tile->mTileOrigin.x - tileStartX, tile->mTileOrigin.y - tileStartY);
nsIntSize textureSize(tile->mTileSize, tile->mTileSize);
aLayer->RenderTile(tile->mTexture, transform, aRenderOffset, tileRect, textureRect, textureSize);
aLayer->RenderTile(tile->mTexture, transform, aRenderOffset, tile->mTileRegion, tileOffset, textureSize);
}
}

3
gfx/layers/opengl/ReusableTileStoreOGL.h
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@ -23,10 +23,12 @@ class ReusableTiledTextureOGL
{
public:
ReusableTiledTextureOGL(TiledTexture aTexture,
const nsIntPoint& aTileOrigin,
const nsIntRegion& aTileRegion,
uint16_t aTileSize,
gfxSize aResolution)
: mTexture(aTexture)
, mTileOrigin(aTileOrigin)
, mTileRegion(aTileRegion)
, mTileSize(aTileSize)
, mResolution(aResolution)
@ -35,6 +37,7 @@ public:
~ReusableTiledTextureOGL() {}
TiledTexture mTexture;
const nsIntPoint mTileOrigin;
const nsIntRegion mTileRegion;
uint16_t mTileSize;
gfxSize mResolution;

25
gfx/layers/opengl/TiledThebesLayerOGL.cpp
View File

@ -184,8 +184,8 @@ void
TiledThebesLayerOGL::RenderTile(TiledTexture aTile,
const gfx3DMatrix& aTransform,
const nsIntPoint& aOffset,
nsIntRect aScreenRect,
nsIntRect aTextureRect,
nsIntRegion aScreenRegion,
nsIntPoint aTextureOffset,
nsIntSize aTextureBounds)
{
gl()->fBindTexture(LOCAL_GL_TEXTURE_2D, aTile.mTextureHandle);
@ -200,11 +200,16 @@ TiledThebesLayerOGL::RenderTile(TiledTexture aTile,
program->SetLayerOpacity(GetEffectiveOpacity());
program->SetLayerTransform(aTransform);
program->SetRenderOffset(aOffset);
program->SetLayerQuadRect(aScreenRect);
mOGLManager->BindAndDrawQuadWithTextureRect(program,
aTextureRect,
aTextureBounds);
nsIntRegionRectIterator it(aScreenRegion);
for (const nsIntRect* rect = it.Next(); rect != nsnull; rect = it.Next()) {
nsIntRect textureRect(rect->x - aTextureOffset.x, rect->y - aTextureOffset.y,
rect->width, rect->height);
program->SetLayerQuadRect(*rect);
mOGLManager->BindAndDrawQuadWithTextureRect(program,
textureRect,
aTextureBounds);
}
}
void
@ -244,9 +249,13 @@ TiledThebesLayerOGL::RenderLayer(int aPreviousFrameBuffer, const nsIntPoint& aOf
GetTile(nsIntPoint(mVideoMemoryTiledBuffer.RoundDownToTileEdge(x),
mVideoMemoryTiledBuffer.RoundDownToTileEdge(y)));
if (tileTexture != mVideoMemoryTiledBuffer.GetPlaceholderTile()) {
nsIntRegion tileDrawRegion = nsIntRegion(nsIntRect(x, y, w, h));
tileDrawRegion.And(tileDrawRegion, mValidRegion);
nsIntPoint tileOffset(x - tileStartX, y - tileStartY);
uint16_t tileSize = mVideoMemoryTiledBuffer.GetTileLength();
RenderTile(tileTexture, GetEffectiveTransform(), aOffset, nsIntRect(x,y,w,h),
nsIntRect(tileStartX, tileStartY, w, h), nsIntSize(tileSize, tileSize));
RenderTile(tileTexture, GetEffectiveTransform(), aOffset, tileDrawRegion,
tileOffset, nsIntSize(tileSize, tileSize));
}
tileY++;
y += h;

6
gfx/layers/opengl/TiledThebesLayerOGL.h
View File

@ -131,13 +131,11 @@ public:
void ProcessUploadQueue();
// Renders a single given tile.
// XXX This currently takes an nsIntRect, but should actually take an
// nsIntRegion and iterate over each rectangle in the region.
void RenderTile(TiledTexture aTile,
const gfx3DMatrix& aTransform,
const nsIntPoint& aOffset,
nsIntRect aScreenRect,
nsIntRect aTextureRect,
nsIntRegion aScreenRegion,
nsIntPoint aTextureOffset,
nsIntSize aTextureBounds);
private: