ANPBitmapInterface.cpp revision a2c606d1d8312a5d063e4a11e5911d9c8e4a3d19 
1/*
2 * Copyright 2009, The Android Open Source Project
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *  * Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 *  * Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26// must include config.h first for webkit to fiddle with new/delete
27#include "config.h"
28#include "SkANP.h"
29#include "SkColorPriv.h"
30
31static bool anp_getPixelPacking(ANPBitmapFormat fmt, ANPPixelPacking* packing) {
32    switch (fmt) {
33        case kRGBA_8888_ANPBitmapFormat:
34            if (packing) {
35                packing->AShift = SK_A32_SHIFT;
36                packing->ABits  = SK_A32_BITS;
37                packing->RShift = SK_R32_SHIFT;
38                packing->RBits  = SK_R32_BITS;
39                packing->GShift = SK_G32_SHIFT;
40                packing->GBits  = SK_G32_BITS;
41                packing->BShift = SK_B32_SHIFT;
42                packing->BBits  = SK_B32_BITS;
43            }
44            return true;
45        case kRGB_565_ANPBitmapFormat:
46            if (packing) {
47                packing->AShift = 0;
48                packing->ABits  = 0;
49                packing->RShift = SK_R16_SHIFT;
50                packing->RBits  = SK_R16_BITS;
51                packing->GShift = SK_G16_SHIFT;
52                packing->GBits  = SK_G16_BITS;
53                packing->BShift = SK_B16_SHIFT;
54                packing->BBits  = SK_B16_BITS;
55            }
56            return true;
57        default:
58            break;
59    }
60    return false;
61}
62
63///////////////////////////////////////////////////////////////////////////////
64
65#define ASSIGN(obj, name)   (obj)->name = anp_##name
66
67void ANPBitmapInterfaceV0_Init(ANPInterface* value) {
68    ANPBitmapInterfaceV0* i = reinterpret_cast<ANPBitmapInterfaceV0*>(value);
69
70    ASSIGN(i, getPixelPacking);
71}
72