OLD | NEW |
| (Empty) |
1 | |
2 /* | |
3 * Copyright 2013 Google Inc. | |
4 * | |
5 * Use of this source code is governed by a BSD-style license that can be | |
6 * found in the LICENSE file. | |
7 */ | |
8 | |
9 #ifdef SK_BUILD_FOR_WIN32 | |
10 #pragma warning(push) | |
11 #pragma warning(disable : 4530) | |
12 #endif | |
13 | |
14 #include <poppler-document.h> | |
15 #include <poppler-image.h> | |
16 #include <poppler-page.h> | |
17 #include <poppler-page-renderer.h> | |
18 | |
19 #include "SkPDFRasterizer.h" | |
20 #include "SkColorPriv.h" | |
21 | |
22 bool SkPopplerRasterizePDF(SkStream* pdf, SkBitmap* output) { | |
23 size_t size = pdf->getLength(); | |
24 void* buffer = sk_malloc_throw(size); | |
25 pdf->read(buffer, size); | |
26 | |
27 SkAutoTDelete<poppler::document> doc( | |
28 poppler::document::load_from_raw_data((const char*)buffer, size)); | |
29 if (!doc.get() || doc->is_locked()) { | |
30 return false; | |
31 } | |
32 | |
33 SkAutoTDelete<poppler::page> page(doc->create_page(0)); | |
34 poppler::page_renderer renderer; | |
35 poppler::image image = renderer.render_page(page.get()); | |
36 | |
37 if (!image.is_valid() || image.format() != poppler::image::format_argb32) { | |
38 return false; | |
39 } | |
40 | |
41 size_t width = image.width(), height = image.height(); | |
42 size_t rowSize = image.bytes_per_row(); | |
43 char *imgData = image.data(); | |
44 | |
45 SkBitmap bitmap; | |
46 bitmap.setConfig(SkBitmap::kARGB_8888_Config, width, height); | |
47 if (!bitmap.allocPixels()) { | |
48 return false; | |
49 } | |
50 bitmap.eraseColor(SK_ColorWHITE); | |
51 SkPMColor* bitmapPixels = (SkPMColor*)bitmap.getPixels(); | |
52 | |
53 // do pixel-by-pixel copy to deal with RGBA ordering conversions | |
54 for (size_t y = 0; y < height; y++) { | |
55 char *rowData = imgData; | |
56 for (size_t x = 0; x < width; x++) { | |
57 uint8_t a = rowData[3]; | |
58 uint8_t r = rowData[2]; | |
59 uint8_t g = rowData[1]; | |
60 uint8_t b = rowData[0]; | |
61 | |
62 *bitmapPixels = SkPreMultiplyARGB(a, r, g, b); | |
63 | |
64 bitmapPixels++; | |
65 rowData += 4; | |
66 } | |
67 imgData += rowSize; | |
68 } | |
69 | |
70 output->swap(bitmap); | |
71 | |
72 return true; | |
73 } | |
OLD | NEW |