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Add tile rendering to GM

Browse Source 
https://codereview.chromium.org/13165011/



git-svn-id: http://skia.googlecode.com/svn/trunk@8485 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
robertphillips@google.com 2013-04-02 15:18:41 +00:00
parent 3e1ba9fd40
commit 5a7d029fd6
1 changed files with 48 additions and 7 deletions
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55
gm/gmmain.cpp
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@ -413,14 +413,51 @@ public:
static void generate_image_from_picture(GM* gm, const ConfigData& gRec,
SkPicture* pict, SkBitmap* bitmap,
SkScalar scale = SK_Scalar1) {
SkScalar scale = SK_Scalar1,
bool tile = false) {
SkISize size = gm->getISize();
setup_bitmap(gRec, size, bitmap);
SkCanvas canvas(*bitmap);
installFilter(&canvas);
canvas.scale(scale, scale);
canvas.drawPicture(*pict);
complete_bitmap(bitmap);
if (tile) {
// Generate the result image by rendering to tiles and accumulating
// the results in 'bitmap'
// This 16x16 tiling matches the settings applied to 'pict' in
// 'generate_new_picture'
SkISize tileSize = SkISize::Make(16, 16);
SkBitmap tileBM;
setup_bitmap(gRec, tileSize, &tileBM);
SkCanvas tileCanvas(tileBM);
installFilter(&tileCanvas);
SkCanvas bmpCanvas(*bitmap);
SkPaint bmpPaint;
bmpPaint.setXfermodeMode(SkXfermode::kSrc_Mode);
for (int yTile = 0; yTile < (size.height()+15)/16; ++yTile) {
for (int xTile = 0; xTile < (size.width()+15)/16; ++xTile) {
int saveCount = tileCanvas.save();
SkMatrix mat(tileCanvas.getTotalMatrix());
mat.postTranslate(SkIntToScalar(-xTile*tileSize.width()),
SkIntToScalar(-yTile*tileSize.height()));
tileCanvas.setMatrix(mat);
pict->draw(&tileCanvas);
tileCanvas.flush();
tileCanvas.restoreToCount(saveCount);
bmpCanvas.drawBitmap(tileBM,
SkIntToScalar(xTile * tileSize.width()),
SkIntToScalar(yTile * tileSize.height()),
&bmpPaint);
}
}
} else {
SkCanvas canvas(*bitmap);
installFilter(&canvas);
canvas.scale(scale, scale);
canvas.drawPicture(*pict);
complete_bitmap(bitmap);
}
}
static void generate_pdf(GM* gm, SkDynamicMemoryWStream& pdf) {
@ -1319,7 +1356,11 @@ ErrorCombination run_multiple_modes(GMMain &gmmain, GM *gm, const ConfigData &co
gm, kTileGrid_BbhType, SkPicture::kUsePathBoundsForClip_RecordingFlag, recordScale);
SkAutoUnref aur(pict);
SkBitmap bitmap;
gmmain.generate_image_from_picture(gm, compareConfig, pict, &bitmap, replayScale);
// We cannot yet pass 'true' to generate_image_from_picture to
// perform actual tiled rendering (see Issue 1198 -
// https://code.google.com/p/skia/issues/detail?id=1198)
gmmain.generate_image_from_picture(gm, compareConfig, pict, &bitmap,
replayScale /*, true */);
SkString suffix("-tilegrid");
if (SK_Scalar1 != replayScale) {
suffix += "-scale-";