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#include "DMTileGridTask.h"
#include "DMWriteTask.h"
#include "DMUtil.h"
#include "SkCommandLineFlags.h"
#include "SkPicture.h"
#include "SkTileGridPicture.h"
// TODO(mtklein): Tile grid tests are currently failing. (Skia issue 1198). When fixed, -> true.
DEFINE_bool(tileGrid, false, "If true, run picture replay tests with a tile grid.");
namespace DM {
TileGridTask::TileGridTask(const Task& parent, skiagm::GM* gm, SkBitmap reference, SkISize tileSize)
: Task(parent)
, fName(UnderJoin(parent.name().c_str(), "tilegrid"))
, fGM(gm)
, fReference(reference)
, fTileSize(tileSize)
{}
static int tiles_needed(int fullDimension, int tileDimension) {
return (fullDimension + tileDimension - 1) / tileDimension;
}
void TileGridTask::draw() {
const SkTileGridPicture::TileGridInfo info = {
fTileSize,
SkISize::Make(0,0), // Overlap between adjacent tiles.
SkIPoint::Make(0,0), // Offset.
};
const SkISize size = fGM->getISize();
SkTileGridPicture recorded(size.width(), size.height(), info);
RecordPicture(fGM.get(), &recorded, SkPicture::kUsePathBoundsForClip_RecordingFlag);
SkBitmap full;
SetupBitmap(fReference.config(), fGM.get(), &full);
SkCanvas fullCanvas(full);
SkBitmap tile;
tile.setConfig(fReference.config(), fTileSize.width(), fTileSize.height());
tile.allocPixels();
SkCanvas tileCanvas(tile);
SkPaint paint;
paint.setXfermodeMode(SkXfermode::kSrc_Mode);
for (int y = 0; y < tiles_needed(full.height(), tile.height()); y++) {
for (int x = 0; x < tiles_needed(full.width(), tile.width()); x++) {
SkAutoCanvasRestore ar(&tileCanvas, true/*also save now*/);
const SkScalar xOffset = SkIntToScalar(x * tile.width()),
yOffset = SkIntToScalar(y * tile.height());
SkMatrix matrix = tileCanvas.getTotalMatrix();
matrix.postTranslate(-xOffset, -yOffset);
tileCanvas.setMatrix(matrix);
recorded.draw(&tileCanvas);
tileCanvas.flush();
fullCanvas.drawBitmap(tile, xOffset, yOffset, &paint);
}
}
if (!BitmapsEqual(full, fReference)) {
this->fail();
this->spawnChild(SkNEW_ARGS(WriteTask, (*this, full)));
}
}
bool TileGridTask::shouldSkip() const {
if (fGM->getFlags() & skiagm::GM::kSkipPicture_Flag) {
return true;
}
if (fGM->getFlags() & skiagm::GM::kSkipTiled_Flag) {
return true;
}
return !FLAGS_tileGrid;
}
} // namespace DM
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