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Improve SVG support by allowing control of density/DPI

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Switch pre-built libs from Imagemagick to Graphicsmagick
This commit is contained in:
Lovell Fuller
2016-02-01 18:21:03 +00:00
parent 56508e8d79
commit cf7664a854
15 changed files with 158 additions and 93 deletions
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14
src/pipeline.cc
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@@ -77,6 +77,7 @@ struct PipelineBaton {
size_t bufferInLength;
std::string iccProfilePath;
int limitInputPixels;
std::string density;
std::string output;
std::string outputFormat;
void *bufferOut;
@@ -129,6 +130,7 @@ struct PipelineBaton {
PipelineBaton():
bufferInLength(0),
limitInputPixels(0),
density(""),
outputFormat(""),
bufferOutLength(0),
topOffsetPre(-1),
@@ -201,8 +203,9 @@ class PipelineWorker : public AsyncWorker {
if (inputImageType != ImageType::UNKNOWN) {
try {
image = VImage::new_from_buffer(
baton->bufferIn, baton->bufferInLength, nullptr,
VImage::option()->set("access", baton->accessMethod)
baton->bufferIn, baton->bufferInLength, nullptr, VImage::option()
->set("access", baton->accessMethod)
->set("density", baton->density.data())
);
} catch (...) {
(baton->err).append("Input buffer has corrupt header");
@@ -217,8 +220,9 @@ class PipelineWorker : public AsyncWorker {
if (inputImageType != ImageType::UNKNOWN) {
try {
image = VImage::new_from_file(
baton->fileIn.data(),
VImage::option()->set("access", baton->accessMethod)
baton->fileIn.data(), VImage::option()
->set("access", baton->accessMethod)
->set("density", baton->density.data())
);
} catch (...) {
(baton->err).append("Input file has corrupt header");
@@ -997,6 +1001,8 @@ NAN_METHOD(pipeline) {
baton->iccProfilePath = attrAsStr(options, "iccProfilePath");
// Limit input images to a given number of pixels, where pixels = width * height
baton->limitInputPixels = attrAs<int32_t>(options, "limitInputPixels");
// Density/DPI at which to load vector images via libmagick
baton->density = attrAsStr(options, "density");
// Extract image options
baton->topOffsetPre = attrAs<int32_t>(options, "topOffsetPre");
baton->leftOffsetPre = attrAs<int32_t>(options, "leftOffsetPre");