keyar@chromium.org | 451bb9f | 2012-07-26 17:27:57 +0000 | [diff] [blame] | 1 | #include "PictureRenderer.h" |
| 2 | #include "SamplePipeControllers.h" |
| 3 | #include "SkCanvas.h" |
| 4 | #include "SkDevice.h" |
| 5 | #include "SkGPipe.h" |
| 6 | #include "SkPicture.h" |
| 7 | #include "SkTDArray.h" |
| 8 | #include "SkTypes.h" |
| 9 | #include "picture_utils.h" |
| 10 | |
| 11 | namespace sk_tools { |
| 12 | |
| 13 | enum { |
| 14 | kDefaultTileWidth = 256, |
| 15 | kDefaultTileHeight = 256 |
| 16 | }; |
| 17 | |
| 18 | void PipePictureRenderer::render(SkPicture* pict, SkCanvas* canvas) { |
| 19 | PipeController pipeController(canvas); |
| 20 | SkGPipeWriter writer; |
| 21 | SkCanvas* pipeCanvas = writer.startRecording(&pipeController); |
| 22 | pipeCanvas->drawPicture(*pict); |
| 23 | writer.endRecording(); |
| 24 | } |
| 25 | |
| 26 | void SimplePictureRenderer::render(SkPicture* pict, SkCanvas* canvas) { |
| 27 | canvas->drawPicture(*pict); |
| 28 | } |
| 29 | |
| 30 | TiledPictureRenderer::TiledPictureRenderer() |
| 31 | : fTileWidth(kDefaultTileWidth) |
| 32 | , fTileHeight(kDefaultTileHeight) {} |
| 33 | |
| 34 | void TiledPictureRenderer::init(const SkPicture& pict) { |
| 35 | deleteTiles(); |
| 36 | setupTiles(pict); |
| 37 | } |
| 38 | |
| 39 | void TiledPictureRenderer::render(SkPicture* pict, SkCanvas* canvas) { |
| 40 | for (int i = 0; i < fTiles.count(); ++i) { |
| 41 | fTiles[i].fCanvas->drawPicture(*pict); |
| 42 | } |
| 43 | |
| 44 | copyTilesToCanvas(*pict, canvas); |
| 45 | } |
| 46 | |
| 47 | TiledPictureRenderer::~TiledPictureRenderer() { |
| 48 | deleteTiles(); |
| 49 | } |
| 50 | |
| 51 | void TiledPictureRenderer::clipTile(const SkPicture& picture, const TileInfo& tile) { |
| 52 | SkRect clip = SkRect::MakeWH(SkIntToScalar(picture.width()), |
| 53 | SkIntToScalar(picture.height())); |
| 54 | tile.fCanvas->clipRect(clip); |
| 55 | } |
| 56 | |
| 57 | void TiledPictureRenderer::addTile(const SkPicture& picture, int tile_x_start, int tile_y_start) { |
| 58 | TileInfo* tile = fTiles.push(); |
| 59 | |
| 60 | tile->fBitmap = SkNEW(SkBitmap); |
| 61 | sk_tools::setup_bitmap(tile->fBitmap, fTileWidth, fTileHeight); |
| 62 | |
| 63 | tile->fCanvas = SkNEW_ARGS(SkCanvas, (*(tile->fBitmap))); |
| 64 | tile->fCanvas->translate(SkIntToScalar(-tile_x_start), SkIntToScalar(-tile_y_start)); |
| 65 | clipTile(picture, *tile); |
| 66 | } |
| 67 | |
| 68 | void TiledPictureRenderer::setupTiles(const SkPicture& picture) { |
| 69 | for (int tile_y_start = 0; tile_y_start < picture.height(); |
| 70 | tile_y_start += fTileHeight) { |
| 71 | for (int tile_x_start = 0; tile_x_start < picture.width(); |
| 72 | tile_x_start += fTileWidth) { |
| 73 | addTile(picture, tile_x_start, tile_y_start); |
| 74 | } |
| 75 | } |
| 76 | } |
| 77 | |
| 78 | void TiledPictureRenderer::deleteTiles() { |
| 79 | for (int i = 0; i < fTiles.count(); ++i) { |
| 80 | SkDELETE(fTiles[i].fCanvas); |
| 81 | SkDELETE(fTiles[i].fBitmap); |
| 82 | } |
| 83 | |
| 84 | fTiles.reset(); |
| 85 | } |
| 86 | |
| 87 | void TiledPictureRenderer::copyTilesToCanvas(const SkPicture& pict, SkCanvas* destination) { |
| 88 | int tile_index = 0; |
| 89 | for (int tile_y_start = 0; tile_y_start < pict.height(); |
| 90 | tile_y_start += fTileHeight) { |
| 91 | for (int tile_x_start = 0; tile_x_start < pict.width(); |
| 92 | tile_x_start += fTileWidth) { |
| 93 | SkASSERT(tile_index < fTiles.count()); |
| 94 | SkBitmap source = fTiles[tile_index].fCanvas->getDevice()->accessBitmap(false); |
robertphillips@google.com | fc91dc7 | 2012-07-26 21:18:31 +0000 | [diff] [blame] | 95 | destination->drawBitmap(source, |
| 96 | SkIntToScalar(tile_x_start), |
| 97 | SkIntToScalar(tile_y_start)); |
keyar@chromium.org | 451bb9f | 2012-07-26 17:27:57 +0000 | [diff] [blame] | 98 | ++tile_index; |
| 99 | } |
| 100 | } |
| 101 | } |
| 102 | |
| 103 | } |