vec2 pack16(float num) {
int iz = int(num);
int ir = intMod(iz,256);
int ig = (iz)/256;
vec2 res;
res.r = float(ir)/255.0;
res.g = float(ig)/255.0;
return res;
}
LayoutUnit LayoutMultiColumnSet::pageRemainingLogicalHeightForOffset(LayoutUnit offsetInFlowThread, PageBoundaryRule pageBoundaryRule) const
{
const MultiColumnFragmentainerGroup& row = fragmentainerGroupAtFlowThreadOffset(offsetInFlowThread);
LayoutUnit pageLogicalHeight = row.logicalHeight();
ASSERT(pageLogicalHeight); // It's not allowed to call this method if the height is unknown.
LayoutUnit pageLogicalBottom = row.columnLogicalTopForOffset(offsetInFlowThread) + pageLogicalHeight;
LayoutUnit remainingLogicalHeight = pageLogicalBottom - offsetInFlowThread;
if (pageBoundaryRule == AssociateWithFormerPage) {
// An offset exactly at a column boundary will act as being part of the former column in
// question (i.e. no remaining space), rather than being part of the latter (i.e. one whole
// column length of remaining space).
remainingLogicalHeight = intMod(remainingLogicalHeight, pageLogicalHeight);
}
return remainingLogicalHeight;
}
LayoutUnit RenderFlowThread::pageRemainingLogicalHeightForOffset(LayoutUnit offset, PageBoundaryRule pageBoundaryRule) const
{
RenderRegion* region = regionAtBlockOffset(offset);
if (!region)
return 0;
LayoutUnit pageLogicalTop = region->pageLogicalTopForOffset(offset);
LayoutUnit pageLogicalHeight = region->pageLogicalHeight();
LayoutUnit pageLogicalBottom = pageLogicalTop + pageLogicalHeight;
LayoutUnit remainingHeight = pageLogicalBottom - offset;
if (pageBoundaryRule == IncludePageBoundary) {
// If IncludePageBoundary is set, the line exactly on the top edge of a
// region will act as being part of the previous region.
remainingHeight = intMod(remainingHeight, pageLogicalHeight);
}
return remainingHeight;
}
LayoutUnit RenderFlowThread::pageRemainingLogicalHeightForOffset(LayoutUnit offset, PageBoundaryRule pageBoundaryRule)
{
RenderMultiColumnSet* columnSet = columnSetAtBlockOffset(offset);
if (!columnSet)
return 0;
LayoutUnit pageLogicalTop = columnSet->pageLogicalTopForOffset(offset);
LayoutUnit pageLogicalHeight = columnSet->pageLogicalHeight();
LayoutUnit pageLogicalBottom = pageLogicalTop + pageLogicalHeight;
LayoutUnit remainingHeight = pageLogicalBottom - offset;
if (pageBoundaryRule == IncludePageBoundary) {
// If IncludePageBoundary is set, the line exactly on the top edge of a
// columnSet will act as being part of the previous columnSet.
remainingHeight = intMod(remainingHeight, pageLogicalHeight);
}
return remainingHeight;
}
extern "C" Box* intDivmod(BoxedInt* lhs, Box* rhs) {
if (!isSubclass(lhs->cls, int_cls))
raiseExcHelper(TypeError, "descriptor '__divmod__' requires a 'int' object but received a '%s'",
getTypeName(lhs));
Box* divResult = intDiv(lhs, rhs);
if (divResult == NotImplemented) {
return NotImplemented;
}
Box* modResult = intMod(lhs, rhs);
if (modResult == NotImplemented) {
return NotImplemented;
}
Box* arg[2] = { divResult, modResult };
return createTuple(2, arg);
}
LayoutUnit LayoutMultiColumnSet::pageRemainingLogicalHeightForOffset(LayoutUnit offsetInFlowThread, PageBoundaryRule pageBoundaryRule) const
{
const MultiColumnFragmentainerGroup& row = fragmentainerGroupAtFlowThreadOffset(offsetInFlowThread);
LayoutUnit pageLogicalHeight = row.logicalHeight();
ASSERT(pageLogicalHeight); // It's not allowed to call this method if the height is unknown.
LayoutUnit pageLogicalBottom = row.columnLogicalTopForOffset(offsetInFlowThread) + pageLogicalHeight;
LayoutUnit remainingLogicalHeight = pageLogicalBottom - offsetInFlowThread;
if (pageBoundaryRule == AssociateWithFormerPage) {
// An offset exactly at a column boundary will act as being part of the former column in
// question (i.e. no remaining space), rather than being part of the latter (i.e. one whole
// column length of remaining space).
remainingLogicalHeight = intMod(remainingLogicalHeight, pageLogicalHeight);
} else if (!remainingLogicalHeight) {
// When pageBoundaryRule is AssociateWithLatterPage, we should never return 0, because if
// there's no space left, it means that we should be at a column boundary, in which case we
// should return the amount of space remaining in the *next* column. But this is not true if
// the offset is "infinite" (saturated), so allow this to happen in that case.
ASSERT(offsetInFlowThread.mightBeSaturated());
remainingLogicalHeight = pageLogicalHeight;
}
return remainingLogicalHeight;
}
void main()
{
int i;
int j;
vec3 newCoords = vec3(0.0);
j = int( volumePitch*volumePitch*TexCoord0.y );
newCoords.x = TexCoord0.x;
newCoords.y = float(intMod(j,iVolumePitch))/volumePitch;
newCoords.z = float(j/iVolumePitch)/volumePitch;
vec4 res = texture2D( Texture0, v_TexCoords );
res = max(res,texture2D( Texture0, v_TexCoords+vec2(0.0/bufferDim.x,1.0/bufferDim.y) ));
res = max(res,texture2D( Texture0, v_TexCoords+vec2(1.0/bufferDim.x,0.0/bufferDim.y) ));
res = max(res,texture2D( Texture0, v_TexCoords+vec2(1.0/bufferDim.x,1.0/bufferDim.y) ));
gl_FragData[0] = res;
}
