1/*
2 * Copyright 2014 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8#include "SkImageGenerator.h"
9
10#ifndef SK_SUPPORT_LEGACY_IMAGEGENERATORAPI
11bool SkImageGenerator::getInfo(SkImageInfo* info) {
12    SkImageInfo dummy;
13    if (NULL == info) {
14        info = &dummy;
15    }
16    return this->onGetInfo(info);
17}
18
19bool SkImageGenerator::getPixels(const SkImageInfo& info, void* pixels, size_t rowBytes,
20                                 SkPMColor ctable[], int* ctableCount) {
21    if (kUnknown_SkColorType == info.colorType()) {
22        return false;
23    }
24    if (NULL == pixels) {
25        return false;
26    }
27    if (rowBytes < info.minRowBytes()) {
28        return false;
29    }
30
31    if (kIndex_8_SkColorType == info.colorType()) {
32        if (NULL == ctable || NULL == ctableCount) {
33            return false;
34        }
35    } else {
36        if (ctableCount) {
37            *ctableCount = 0;
38        }
39        ctableCount = NULL;
40        ctable = NULL;
41    }
42
43    bool success = this->onGetPixels(info, pixels, rowBytes, ctable, ctableCount);
44
45    if (success && ctableCount) {
46        SkASSERT(*ctableCount >= 0 && *ctableCount <= 256);
47    }
48    return success;
49}
50
51bool SkImageGenerator::getPixels(const SkImageInfo& info, void* pixels, size_t rowBytes) {
52    SkASSERT(kIndex_8_SkColorType != info.colorType());
53    if (kIndex_8_SkColorType == info.colorType()) {
54        return false;
55    }
56    return this->getPixels(info, pixels, rowBytes, NULL, NULL);
57}
58#endif
59
60/////////////////////////////////////////////////////////////////////////////////////////////
61
62SkData* SkImageGenerator::onRefEncodedData() {
63    return NULL;
64}
65
66bool SkImageGenerator::onGetInfo(SkImageInfo*) {
67    return false;
68}
69
70bool SkImageGenerator::onGetPixels(const SkImageInfo&, void*, size_t, SkPMColor*, int*) {
71    return false;
72}
73