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
getInfo(SkImageInfo * info)11 bool SkImageGenerator::getInfo(SkImageInfo* info) {
12 SkImageInfo dummy;
13 if (NULL == info) {
14 info = &dummy;
15 }
16 return this->onGetInfo(info);
17 }
18
getPixels(const SkImageInfo & info,void * pixels,size_t rowBytes,SkPMColor ctable[],int * ctableCount)19 bool 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
getPixels(const SkImageInfo & info,void * pixels,size_t rowBytes)51 bool 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
onRefEncodedData()62 SkData* SkImageGenerator::onRefEncodedData() {
63 return NULL;
64 }
65
onGetInfo(SkImageInfo *)66 bool SkImageGenerator::onGetInfo(SkImageInfo*) {
67 return false;
68 }
69
onGetPixels(const SkImageInfo &,void *,size_t,SkPMColor *,int *)70 bool SkImageGenerator::onGetPixels(const SkImageInfo&, void*, size_t, SkPMColor*, int*) {
71 return false;
72 }
73