xref: /third_party/skia/src/core/SkConvertPixels.h (revision cb93a386)
1/*
2 * Copyright 2011 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#ifndef SkConvertPixels_DEFINED
9#define SkConvertPixels_DEFINED
10
11#include "include/core/SkImageInfo.h"
12#include "include/private/SkTemplates.h"
13
14class SkColorTable;
15
16bool SK_WARN_UNUSED_RESULT SkConvertPixels(
17        const SkImageInfo& dstInfo,       void* dstPixels, size_t dstRowBytes,
18        const SkImageInfo& srcInfo, const void* srcPixels, size_t srcRowBytes);
19
20static inline void SkRectMemcpy(void* dst, size_t dstRB, const void* src, size_t srcRB,
21                                size_t trimRowBytes, int rowCount) {
22    SkASSERT(trimRowBytes <= dstRB);
23    SkASSERT(trimRowBytes <= srcRB);
24    if (trimRowBytes == dstRB && trimRowBytes == srcRB) {
25        memcpy(dst, src, trimRowBytes * rowCount);
26        return;
27    }
28
29    for (int i = 0; i < rowCount; ++i) {
30        memcpy(dst, src, trimRowBytes);
31        dst = SkTAddOffset<void>(dst, dstRB);
32        src = SkTAddOffset<const void>(src, srcRB);
33    }
34}
35
36#endif
37