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sw_engine: fix out of cell memory.

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we can adjust cell size if the cell memory is out.
the main rle logic missed the exception handling.

Change-Id: I4419eefefccafd788729111eafeb65aa4e6a20e9
This commit is contained in:
Hermet Park 2020-07-29 13:40:11 +09:00
parent d2d4a2a3e7
commit 8a924cbd78
1 changed files with 18 additions and 21 deletions
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39
src/lib/sw_engine/tvgSwRle.cpp
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@ -625,17 +625,15 @@ invalid_outline:
}
static bool _genRle(RleWorker& rw)
static int _genRle(RleWorker& rw)
{
bool ret = false;
if (setjmp(rw.jmpBuf) == 0) {
ret = _decomposeOutline(rw);
auto ret = _decomposeOutline(rw);
if (!rw.invalid) _recordCell(rw);
} else {
cout << "Lack of Cell Memory" << endl;
if (ret) return 0; //success
else return 1; //fail
}
return ret;
return -1; //lack of cell memory
}
@ -646,14 +644,9 @@ static bool _genRle(RleWorker& rw)
SwRleData* rleRender(const SwOutline* outline, const SwBBox& bbox, const SwSize& clip, bool antiAlias)
{
//Please adjust when you out of cell memory (default: 16384L)
constexpr auto RENDER_POOL_SIZE = 163840L * 2;
constexpr auto RENDER_POOL_SIZE = 16384L;
constexpr auto BAND_SIZE = 40;
assert(outline);
assert(outline->cntrs && outline->pts);
assert(outline->ptsCnt == outline->cntrs[outline->cntrsCnt - 1] + 1);
//TODO: We can preserve several static workers in advance
RleWorker rw;
Cell buffer[RENDER_POOL_SIZE / sizeof(Cell)];
@ -693,6 +686,7 @@ SwRleData* rleRender(const SwOutline* outline, const SwBBox& bbox, const SwSize&
auto min = rw.cellMin.y;
auto yMax = rw.cellMax.y;
SwCoord max;
int ret;
for (int n = 0; n < bandCnt; ++n, min = max) {
max = min + rw.bandSize;
@ -706,8 +700,8 @@ SwRleData* rleRender(const SwOutline* outline, const SwBBox& bbox, const SwSize&
rw.yCells = static_cast<Cell**>(rw.buffer);
rw.yCnt = band->max - band->min;
auto cellStart = sizeof(Cell*) * (int)rw.yCnt;
auto cellMod = cellStart % sizeof(Cell);
int cellStart = sizeof(Cell*) * (int)rw.yCnt;
int cellMod = cellStart % sizeof(Cell);
if (cellMod > 0) cellStart += sizeof(Cell) - cellMod;
@ -722,7 +716,7 @@ SwRleData* rleRender(const SwOutline* outline, const SwBBox& bbox, const SwSize&
rw.maxCells = cellsMax - rw.cells;
if (rw.maxCells < 2) goto reduce_bands;
for (auto y = 0; y < rw.yCnt; ++y)
for (int y = 0; y < rw.yCnt; ++y)
rw.yCells[y] = nullptr;
rw.cellsCnt = 0;
@ -731,11 +725,14 @@ SwRleData* rleRender(const SwOutline* outline, const SwBBox& bbox, const SwSize&
rw.cellMax.y = band->max;
rw.cellYCnt = band->max - band->min;
if (!_genRle(rw)) goto error;
_sweep(rw);
--band;
continue;
ret = _genRle(rw);
if (ret == 0) {
_sweep(rw);
--band;
continue;
} else if (ret == 1) {
goto error;
}
reduce_bands:
/* render pool overflow: we will reduce the render band by half */