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Use tile cache for interlace output

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Doubles performance of Adam7 interlaced PNG output
This commit is contained in:
Lovell Fuller 2014-07-09 23:47:04 +01:00
parent 2126f9afc1
commit 1cce56b024
2 changed files with 30 additions and 18 deletions
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6
package.json
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@ -1,6 +1,6 @@
{
"name": "sharp",
"version": "0.5.1",
"version": "0.5.2",
"author": "Lovell Fuller <npm@lovell.info>",
"contributors": [
"Pierre Inglebert <pierre.inglebert@gmail.com>",
@ -33,11 +33,11 @@
],
"dependencies": {
"nan": "^1.2.0",
"bluebird": "^2.1.2"
"bluebird": "^2.2.1"
},
"devDependencies": {
"imagemagick": "^0.1.3",
"imagemagick-native": "^1.1.1",
"imagemagick-native": "^1.2.2",
"gm": "^1.16.0",
"async": "^0.9.0",
"benchmark": "^1.0.0"

42
src/sharp.cc
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@ -373,46 +373,58 @@ class ResizeWorker : public NanAsyncWorker {
vips_colourspace(sharpened, &colourspaced, VIPS_INTERPRETATION_sRGB, NULL);
g_object_unref(sharpened);
// Generate image tile cache when interlace output is required
VipsImage *cached = vips_image_new();
if (baton->progressive) {
if (vips_tilecache(colourspaced, &cached, "threaded", TRUE, "persistent", TRUE, "max_tiles", -1, NULL)) {
return resize_error(baton, colourspaced);
}
} else {
vips_copy(colourspaced, &cached, NULL);
}
g_object_unref(colourspaced);
// Output
VipsImage *output = cached;
if (baton->file_out == "__jpeg" || (baton->file_out == "__input" && inputImageType == JPEG)) {
// Write JPEG to buffer
if (vips_jpegsave_buffer(colourspaced, &baton->buffer_out, &baton->buffer_out_len, "strip", TRUE, "Q", baton->quality, "optimize_coding", TRUE, "interlace", baton->progressive, NULL)) {
return resize_error(baton, colourspaced);
if (vips_jpegsave_buffer(output, &baton->buffer_out, &baton->buffer_out_len, "strip", TRUE, "Q", baton->quality, "optimize_coding", TRUE, "interlace", baton->progressive, NULL)) {
return resize_error(baton, output);
}
} else if (baton->file_out == "__png" || (baton->file_out == "__input" && inputImageType == PNG)) {
// Write PNG to buffer
if (vips_pngsave_buffer(colourspaced, &baton->buffer_out, &baton->buffer_out_len, "strip", TRUE, "compression", baton->compressionLevel, "interlace", baton->progressive, NULL)) {
return resize_error(baton, colourspaced);
if (vips_pngsave_buffer(output, &baton->buffer_out, &baton->buffer_out_len, "strip", TRUE, "compression", baton->compressionLevel, "interlace", baton->progressive, NULL)) {
return resize_error(baton, output);
}
} else if (baton->file_out == "__webp" || (baton->file_out == "__input" && inputImageType == WEBP)) {
// Write WEBP to buffer
if (vips_webpsave_buffer(colourspaced, &baton->buffer_out, &baton->buffer_out_len, "strip", TRUE, "Q", baton->quality, NULL)) {
return resize_error(baton, colourspaced);
if (vips_webpsave_buffer(output, &baton->buffer_out, &baton->buffer_out_len, "strip", TRUE, "Q", baton->quality, NULL)) {
return resize_error(baton, output);
}
} else if (is_jpeg(baton->file_out)) {
// Write JPEG to file
if (vips_jpegsave(colourspaced, baton->file_out.c_str(), "strip", TRUE, "Q", baton->quality, "optimize_coding", TRUE, "interlace", baton->progressive, NULL)) {
return resize_error(baton, colourspaced);
if (vips_jpegsave(output, baton->file_out.c_str(), "strip", TRUE, "Q", baton->quality, "optimize_coding", TRUE, "interlace", baton->progressive, NULL)) {
return resize_error(baton, output);
}
} else if (is_png(baton->file_out)) {
// Write PNG to file
if (vips_pngsave(colourspaced, baton->file_out.c_str(), "strip", TRUE, "compression", baton->compressionLevel, "interlace", baton->progressive, NULL)) {
return resize_error(baton, colourspaced);
if (vips_pngsave(output, baton->file_out.c_str(), "strip", TRUE, "compression", baton->compressionLevel, "interlace", baton->progressive, NULL)) {
return resize_error(baton, output);
}
} else if (is_webp(baton->file_out)) {
// Write WEBP to file
if (vips_webpsave(colourspaced, baton->file_out.c_str(), "strip", TRUE, "Q", baton->quality, NULL)) {
return resize_error(baton, colourspaced);
if (vips_webpsave(output, baton->file_out.c_str(), "strip", TRUE, "Q", baton->quality, NULL)) {
return resize_error(baton, output);
}
} else if (is_tiff(baton->file_out)) {
// Write TIFF to file
if (vips_tiffsave(colourspaced, baton->file_out.c_str(), "strip", TRUE, "compression", VIPS_FOREIGN_TIFF_COMPRESSION_JPEG, "Q", baton->quality, NULL)) {
return resize_error(baton, colourspaced);
if (vips_tiffsave(output, baton->file_out.c_str(), "strip", TRUE, "compression", VIPS_FOREIGN_TIFF_COMPRESSION_JPEG, "Q", baton->quality, NULL)) {
return resize_error(baton, output);
}
} else {
(baton->err).append("Unsupported output " + baton->file_out);
}
g_object_unref(colourspaced);
g_object_unref(output);
vips_thread_shutdown();
}