sk_tool_utils.cpp revision 2010891425f10257363ae6eb0da70453746dc087 
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 "sk_tool_utils.h"
9
10#include "SkBitmap.h"
11#include "SkCanvas.h"
12
13namespace sk_tool_utils {
14
15const char* colortype_name(SkColorType ct) {
16    switch (ct) {
17        case kUnknown_SkColorType:      return "Unknown";
18        case kAlpha_8_SkColorType:      return "Alpha_8";
19        case kIndex_8_SkColorType:      return "Index_8";
20        case kARGB_4444_SkColorType:    return "ARGB_4444";
21        case kRGB_565_SkColorType:      return "RGB_565";
22        case kRGBA_8888_SkColorType:    return "RGBA_8888";
23        case kBGRA_8888_SkColorType:    return "BGRA_8888";
24        default:
25            SkASSERT(false);
26            return "unexpected colortype";
27    }
28}
29
30void write_pixels(SkCanvas* canvas, const SkBitmap& bitmap, int x, int y,
31                  SkColorType colorType, SkAlphaType alphaType) {
32    SkBitmap tmp(bitmap);
33    tmp.lockPixels();
34
35    SkImageInfo info = tmp.info();
36    info.fColorType = colorType;
37    info.fAlphaType = alphaType;
38
39    canvas->writePixels(info, tmp.getPixels(), tmp.rowBytes(), x, y);
40}
41
42}  // namespace sk_tool_utils
43