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@ -5,10 +5,12 @@ |
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// Copyright (c) 2010 LearnBoost <tj@learnboost.com>
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//
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#include <string.h> |
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#include "canvas.h" |
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#include <string.h> |
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#include <node_buffer.h> |
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using namespace v8; |
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using namespace node; |
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/*
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* Initialize Canvas. |
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@ -45,22 +47,19 @@ Canvas::New(const Arguments &args) { |
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} |
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typedef struct { |
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unsigned char *pos; |
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unsigned char *end; |
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Handle<Function> fn; |
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} closure_t; |
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static cairo_status_t |
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writeToBuffer(void *c, const uint8_t *data, unsigned len) { |
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printf("bytes %d\n", len); |
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closure_t *closure = (closure_t *) c; |
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if (closure->pos + len > closure->end) |
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return CAIRO_STATUS_WRITE_ERROR; |
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memcpy(closure->pos, data, len); |
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Handle<Value> argv[1]; |
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argv[0] = String::New("test"); |
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closure->fn.Call(Context::GetCurrent()->Global(), 1, argv); |
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closure->pos += len; |
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Buffer *buf = Buffer::New(len); |
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memcpy(buf->data(), data, len); |
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argv[0] = buf->handle_; |
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closure->fn->Call(Context::GetCurrent()->Global(), 1, argv); |
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// TODO: CAIRO_STATUS_NO_MEMORY
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// TODO: pass len
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return CAIRO_STATUS_SUCCESS; |
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} |
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@ -76,9 +75,6 @@ Canvas::StreamPNG(const Arguments &args) { |
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return ThrowException(Exception::TypeError(String::New("function required"))); |
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Canvas *canvas = ObjectWrap::Unwrap<Canvas>(args.This()); |
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closure_t closure; |
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uint8_t data[64 * 1024]; |
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closure.pos = data; |
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closure.end = data + sizeof(data); |
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closure.fn = Handle<Function>::Cast(args[0]); // TODO: leakage?
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cairo_surface_write_to_png_stream(canvas->getSurface(), writeToBuffer, &closure); |
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return Undefined(); |
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