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#include "PictureRenderer.h"
#include "SamplePipeControllers.h"
#include "SkCanvas.h"
#include "SkDevice.h"
#include "SkGPipe.h"
#include "SkPicture.h"
#include "SkTDArray.h"
#include "SkTypes.h"
#include "picture_utils.h"
namespace sk_tools {
enum {
kDefaultTileWidth = 256,
kDefaultTileHeight = 256
};
void PictureRenderer::init(SkPicture* pict) {
SkASSERT(fPicture == NULL);
SkASSERT(fCanvas.get() == NULL);
if (fPicture != NULL || fCanvas.get() != NULL) {
return;
}
SkASSERT(pict != NULL);
if (pict == NULL) {
return;
}
fPicture = pict;
SkBitmap bitmap;
sk_tools::setup_bitmap(&bitmap, fPicture->width(), fPicture->height());
fCanvas.reset(SkNEW_ARGS(SkCanvas, (bitmap)));
}
void PictureRenderer::end() {
fPicture = NULL;
fCanvas.reset(NULL);
}
void PipePictureRenderer::render() {
SkASSERT(fCanvas.get() != NULL);
SkASSERT(fPicture != NULL);
if (fCanvas.get() == NULL || fPicture == NULL) {
return;
}
PipeController pipeController(fCanvas.get());
SkGPipeWriter writer;
SkCanvas* pipeCanvas = writer.startRecording(&pipeController);
pipeCanvas->drawPicture(*fPicture);
writer.endRecording();
}
void SimplePictureRenderer::render() {
SkASSERT(fCanvas.get() != NULL);
SkASSERT(fPicture != NULL);
if (fCanvas.get() == NULL || fPicture == NULL) {
return;
}
fCanvas->drawPicture(*fPicture);
}
TiledPictureRenderer::TiledPictureRenderer()
: fTileWidth(kDefaultTileWidth)
, fTileHeight(kDefaultTileHeight) {}
void TiledPictureRenderer::init(SkPicture* pict) {
SkASSERT(pict != NULL);
SkASSERT(fTiles.count() == 0);
if (pict == NULL || fTiles.count() != 0) {
return;
}
this->INHERITED::init(pict);
if (fTileWidthPercentage > 0) {
fTileWidth = sk_float_ceil2int(fTileWidthPercentage * fPicture->width() / 100);
}
if (fTileHeightPercentage > 0) {
fTileHeight = sk_float_ceil2int(fTileHeightPercentage * fPicture->height() / 100);
}
this->setupTiles();
}
void TiledPictureRenderer::render() {
SkASSERT(fCanvas.get() != NULL);
SkASSERT(fPicture != NULL);
if (fCanvas.get() == NULL || fPicture == NULL) {
return;
}
this->drawTiles();
this->copyTilesToCanvas();
}
void TiledPictureRenderer::end() {
this->deleteTiles();
this->INHERITED::end();
}
TiledPictureRenderer::~TiledPictureRenderer() {
this->deleteTiles();
}
void TiledPictureRenderer::clipTile(const TileInfo& tile) {
SkRect clip = SkRect::MakeWH(SkIntToScalar(fPicture->width()),
SkIntToScalar(fPicture->height()));
tile.fCanvas->clipRect(clip);
}
void TiledPictureRenderer::addTile(int tile_x_start, int tile_y_start) {
TileInfo* tile = fTiles.push();
tile->fBitmap = SkNEW(SkBitmap);
sk_tools::setup_bitmap(tile->fBitmap, fTileWidth, fTileHeight);
tile->fCanvas = SkNEW_ARGS(SkCanvas, (*(tile->fBitmap)));
tile->fCanvas->translate(SkIntToScalar(-tile_x_start), SkIntToScalar(-tile_y_start));
this->clipTile(*tile);
}
void TiledPictureRenderer::setupTiles() {
for (int tile_y_start = 0; tile_y_start < fPicture->height();
tile_y_start += fTileHeight) {
for (int tile_x_start = 0; tile_x_start < fPicture->width();
tile_x_start += fTileWidth) {
this->addTile(tile_x_start, tile_y_start);
}
}
}
void TiledPictureRenderer::deleteTiles() {
for (int i = 0; i < fTiles.count(); ++i) {
SkDELETE(fTiles[i].fCanvas);
SkDELETE(fTiles[i].fBitmap);
}
fTiles.reset();
}
void TiledPictureRenderer::drawTiles() {
for (int i = 0; i < fTiles.count(); ++i) {
fTiles[i].fCanvas->drawPicture(*(fPicture));
}
}
void TiledPictureRenderer::copyTilesToCanvas() {
int tile_index = 0;
for (int tile_y_start = 0; tile_y_start < fPicture->height();
tile_y_start += fTileHeight) {
for (int tile_x_start = 0; tile_x_start < fPicture->width();
tile_x_start += fTileWidth) {
SkASSERT(tile_index < fTiles.count());
SkBitmap source = fTiles[tile_index].fCanvas->getDevice()->accessBitmap(false);
fCanvas->drawBitmap(source,
SkIntToScalar(tile_x_start),
SkIntToScalar(tile_y_start));
++tile_index;
}
}
}
}
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