gecko-dev/dom/plugins/base/android/ANPBitmap.cpp

86 строки
2.4 KiB
C++

/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "assert.h"
#include "ANPBase.h"
#include <android/log.h>
#define LOG(args...) __android_log_print(ANDROID_LOG_INFO, "GeckoPlugins" , ## args)
#define ASSIGN(obj, name) (obj)->name = anp_bitmap_##name
#define SK_A32_BITS 8
#define SK_R32_BITS 8
#define SK_G32_BITS 8
#define SK_B32_BITS 8
#ifdef IS_BIG_ENDIAN
#define SK_R32_SHIFT 24
#define SK_G32_SHIFT 16
#define SK_B32_SHIFT 8
#define SK_A32_SHIFT 0
#else
#define SK_R32_SHIFT 0
#define SK_G32_SHIFT 8
#define SK_B32_SHIFT 16
#define SK_A32_SHIFT 24
#endif
#define SK_A32_MASK ((1 << SK_A32_BITS) - 1)
#define SK_R32_MASK ((1 << SK_R32_BITS) - 1)
#define SK_G32_MASK ((1 << SK_G32_BITS) - 1)
#define SK_B32_MASK ((1 << SK_B32_BITS) - 1)
#define SK_R16_BITS 5
#define SK_G16_BITS 6
#define SK_B16_BITS 5
#define SK_R16_SHIFT (SK_B16_BITS + SK_G16_BITS)
#define SK_G16_SHIFT (SK_B16_BITS)
#define SK_B16_SHIFT 0
#define SK_R16_MASK ((1 << SK_R16_BITS) - 1)
#define SK_G16_MASK ((1 << SK_G16_BITS) - 1)
#define SK_B16_MASK ((1 << SK_B16_BITS) - 1)
bool
anp_bitmap_getPixelPacking(ANPBitmapFormat fmt, ANPPixelPacking* packing) {
LOG("%s", __PRETTY_FUNCTION__);
switch (fmt) {
case kRGBA_8888_ANPBitmapFormat:
if (packing) {
packing->AShift = SK_A32_SHIFT;
packing->ABits = SK_A32_BITS;
packing->RShift = SK_R32_SHIFT;
packing->RBits = SK_R32_BITS;
packing->GShift = SK_G32_SHIFT;
packing->GBits = SK_G32_BITS;
packing->BShift = SK_B32_SHIFT;
packing->BBits = SK_B32_BITS;
}
return true;
case kRGB_565_ANPBitmapFormat:
if (packing) {
packing->AShift = 0;
packing->ABits = 0;
packing->RShift = SK_R16_SHIFT;
packing->RBits = SK_R16_BITS;
packing->GShift = SK_G16_SHIFT;
packing->GBits = SK_G16_BITS;
packing->BShift = SK_B16_SHIFT;
packing->BBits = SK_B16_BITS;
}
return true;
default:
break;
}
return false;
}
void InitBitmapInterface(ANPBitmapInterfaceV0 *i) {
_assert(i->inSize == sizeof(*i));
ASSIGN(i, getPixelPacking);
}