/*
- * Copyright (c) 2021 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2022 Samsung Electronics Co., Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
Debug::Filter* gLogFilter = Debug::Filter::New(Debug::NoLogging, false, "LOG_LOADER_WBMP");
#endif
+// TODO : We need to determine it in dali-common.h or something else. Currently, we set this value in code level.
+#define DALI_BYTE_ORDER_BIG_ENDIAN 0
+
#define IMG_MAX_SIZE 65536
#define IMG_TOO_BIG(w, h) \
((1ULL << (29)) - 2048))
//extract multiple bytes integer , and saved in *data
-int extractMultiByteInteger(unsigned int* data, void* map, size_t length, size_t* position)
+int extractMultiByteInteger(unsigned int* data, const std::uint8_t* const& map, size_t length, size_t* position)
{
// the header field contains an image type indentifier of multi-byte length(TypeField), an octet of general header info(FixHeaderField)
//, a multi-byte width field(Width) and a multi-byte height field(Height) and so on.
// for general width and height, if(buf & 0x80) == 0, then the next byte does not need to fetch again
// first step, readBufCount = 1 , read int(4 bytes) to buf, if buf & 0x80 !=0, the buf need to continue to fetch
// second step, readBufCount = 2, read next( 4 bytes) to buf, if buf & 0x80 == 0, then assigned the buf to target
- if((readBufCount++) == 4)
+ if(DALI_UNLIKELY((readBufCount++) == 4))
{
return -1;
}
- if(*position > length)
+ if(DALI_UNLIKELY(*position > length))
{
return -1;
}
- buf = reinterpret_cast<unsigned char*>(map)[(*position)++];
+ buf = map[(*position)++];
targetMultiByteInteger = (targetMultiByteInteger << 7) | (buf & 0x7f);
if((buf & 0x80) == 0)
return 0;
}
+// Calculate 4bit integer into 4byte integer
+constexpr std::uint32_t Calculate4BitTo4Byte(const std::uint8_t& input)
+{
+ std::uint32_t output = 0;
+#if DALI_BYTE_ORDER_BIG_ENDIAN
+ output |= static_cast<std::uint32_t>(input & 0x08) << 21;
+ output |= static_cast<std::uint32_t>(input & 0x04) << 14;
+ output |= static_cast<std::uint32_t>(input & 0x02) << 7;
+ output |= static_cast<std::uint32_t>(input & 0x01);
+#else
+ output |= static_cast<std::uint32_t>(input & 0x08) >> 3;
+ output |= static_cast<std::uint32_t>(input & 0x04) << 6;
+ output |= static_cast<std::uint32_t>(input & 0x02) << 15;
+ output |= static_cast<std::uint32_t>(input & 0x01) << 24;
+#endif
+ return output * 0xff;
+}
+
+/**
+ * @brief Calculation result bit-->byte table in compile.
+ * Required memory = 16 * 4byte = 64byte
+ */
+// clang-format off
+constexpr std::uint32_t cachedCalculation4BitTo4ByteTable[16] = {
+ Calculate4BitTo4Byte(0x00), Calculate4BitTo4Byte(0x01), Calculate4BitTo4Byte(0x02), Calculate4BitTo4Byte(0x03),
+ Calculate4BitTo4Byte(0x04), Calculate4BitTo4Byte(0x05), Calculate4BitTo4Byte(0x06), Calculate4BitTo4Byte(0x07),
+ Calculate4BitTo4Byte(0x08), Calculate4BitTo4Byte(0x09), Calculate4BitTo4Byte(0x0a), Calculate4BitTo4Byte(0x0b),
+ Calculate4BitTo4Byte(0x0c), Calculate4BitTo4Byte(0x0d), Calculate4BitTo4Byte(0x0e), Calculate4BitTo4Byte(0x0f)};
+// clang-format on
} // end unnamed namespace
bool LoadBitmapFromWbmp(const Dali::ImageLoader::Input& input, Dali::Devel::PixelBuffer& bitmap)
{
FILE* const fp = input.file;
- if(fp == NULL)
+ if(DALI_UNLIKELY(fp == NULL))
{
DALI_LOG_ERROR("Error loading bitmap\n");
return false;
}
Dali::Vector<unsigned char> map;
- Dali::Vector<unsigned char> surface; //unsigned int
size_t position = 0;
- unsigned int w, h;
- unsigned int type;
- unsigned int line_length;
- unsigned char* line = NULL;
- unsigned int cur = 0, x, y;
+ std::uint32_t w, h;
+ std::uint32_t type;
+ std::uint32_t lineByteLength;
- if(fseek(fp, 0, SEEK_END))
+ if(DALI_UNLIKELY(fseek(fp, 0, SEEK_END)))
{
DALI_LOG_ERROR("Error seeking WBMP data\n");
return false;
fsize = static_cast<unsigned int>(positionIndicator);
}
- if(0u == fsize)
+ if(DALI_UNLIKELY(0u == fsize))
{
DALI_LOG_ERROR("Error: filesize is 0!\n");
return false;
}
- if(fseek(fp, 0, SEEK_SET))
+ if(DALI_UNLIKELY(fseek(fp, 0, SEEK_SET)))
{
DALI_LOG_ERROR("Error seeking WBMP data\n");
return false;
}
- if(fsize <= 4)
+ if(DALI_UNLIKELY(fsize <= 4))
{
DALI_LOG_ERROR("Error: WBMP Raw Data Not Found!\n");
return false;
}
- if(fsize > 4096 * 4096 * 4)
+ if(DALI_UNLIKELY(fsize > 4096 * 4096 * 4))
{
DALI_LOG_ERROR("Error: WBMP size is too large!\n");
return false;
}
map.ResizeUninitialized(fsize);
- if(fread(&map[0], 1, fsize, fp) != fsize)
+ if(DALI_UNLIKELY(fread(&map[0], 1, fsize, fp) != fsize))
{
DALI_LOG_WARNING("image file read opeation error!\n");
return false;
}
- if(extractMultiByteInteger(&type, &map[0], fsize, &position) < 0)
+ const std::uint8_t* const inputBufferPtr = &map[0];
+
+ if(DALI_UNLIKELY(extractMultiByteInteger(&type, inputBufferPtr, fsize, &position) < 0))
{
return false;
}
position++; /* skipping one byte */
- if(extractMultiByteInteger(&w, &map[0], fsize, &position) < 0)
+ if(DALI_UNLIKELY(extractMultiByteInteger(&w, inputBufferPtr, fsize, &position) < 0))
{
return false;
}
- if(extractMultiByteInteger(&h, &map[0], fsize, &position) < 0)
+ if(DALI_UNLIKELY(extractMultiByteInteger(&h, inputBufferPtr, fsize, &position) < 0))
{
return false;
}
- if(type != 0)
+ if(DALI_UNLIKELY(type != 0))
{
DALI_LOG_ERROR("Unknown Format!\n");
return false;
}
- if((w < 1) || (h < 1) || (w > IMG_MAX_SIZE) || (h > IMG_MAX_SIZE))
+ if(DALI_UNLIKELY((w < 1) || (h < 1) || (w > IMG_MAX_SIZE) || (h > IMG_MAX_SIZE)))
{
return false;
}
- surface.ResizeUninitialized(w * h); //(w * h * 4);
- memset(&surface[0], 0, w * h); // w * h * 4
+ lineByteLength = (w + 7) >> 3;
+ // fsize was wrong! Load failed.
+ if(DALI_UNLIKELY(position + h * lineByteLength > fsize))
+ {
+ DALI_LOG_ERROR("Pixel infomation is bigger than file size! (%u + %u * %u > %u)\n", static_cast<std::uint32_t>(position), h, lineByteLength, fsize);
+ return false;
+ }
- line_length = (w + 7) >> 3;
- for(y = 0; y < h; y++)
+ // w >= 1 and h >= 1. So we can assume that outputPixels is not null.
+ auto outputPixels = (bitmap = Dali::Devel::PixelBuffer::New(w, h, Pixel::L8)).GetBuffer();
+
+ /**
+ * @code
+ * std::uint8_t* line = NULL;
+ * std::uint32_t cur = 0, x, y;
+ * for(y = 0; y < h; y++)
+ * {
+ * line = &map[0] + position;
+ * position += lineByteLength;
+ * for(x = 0; x < w; x++)
+ * {
+ * int idx = x >> 3;
+ * int offset = 1 << (0x07 - (x & 0x07));
+ * if(line[idx] & offset)
+ * {
+ * outputPixels[cur] = 0xff; //0xffffffff;
+ * }
+ * else
+ * {
+ * outputPixels[cur] = 0x00; //0xff000000;
+ * }
+ * cur++;
+ * }
+ * }
+ * @endcode
+ */
+
+ const std::uint8_t* inputPixels = inputBufferPtr + position;
+ const std::uint32_t lineByteLengthWithoutPadding = w >> 3;
+ const std::uint8_t linePadding = w & 0x07;
+
+ for(std::uint32_t y = 0; y < h; ++y)
{
- if(position + line_length > fsize)
+ for(std::uint32_t x = 0; x < lineByteLengthWithoutPadding; ++x)
{
- return false;
+ // memset whole 8 bits
+ // outputPixels filled 4 bytes in one operation.
+ // cachedCalculation4BitTo4ByteTable calculated in compile-time.
+ *(reinterpret_cast<std::uint32_t*>(outputPixels + 0)) = cachedCalculation4BitTo4ByteTable[((*inputPixels) >> 4) & 0x0f];
+ *(reinterpret_cast<std::uint32_t*>(outputPixels + 4)) = cachedCalculation4BitTo4ByteTable[(*inputPixels) & 0x0f];
+ outputPixels += 8;
+ ++inputPixels;
}
- line = &map[0] + position;
- position += line_length;
- for(x = 0; x < w; x++)
+ if(linePadding > 0)
{
- int idx = x >> 3;
- int offset = 1 << (0x07 - (x & 0x07));
- if(line[idx] & offset)
+ // memset linePadding bits naive.
+ for(std::uint8_t x = 0; x < linePadding; ++x)
{
- surface[cur] = 0xff; //0xffffffff;
+ const std::uint8_t offset = (0x07 - (x & 0x07));
+ *outputPixels = ((*inputPixels) >> offset) & 1 ? 0xff : 0x00;
+ ++outputPixels;
}
- else
- {
- surface[cur] = 0x00; //0xff000000;
- }
- cur++;
+ ++inputPixels;
}
}
- auto pixels = (bitmap = Dali::Devel::PixelBuffer::New(w, h, Pixel::L8)).GetBuffer();
-
- memcpy(pixels, &surface[0], w * h); //w * h * 4
return true;
}
bool LoadWbmpHeader(const Dali::ImageLoader::Input& input, unsigned int& width, unsigned int& height)
{
FILE* const fp = input.file;
- if(fp == NULL)
+ if(DALI_UNLIKELY(fp == NULL))
{
DALI_LOG_ERROR("Error loading bitmap\n");
return false;
unsigned int w, h;
unsigned int type;
- if(fseek(fp, 0, SEEK_END))
+ if(DALI_UNLIKELY(fseek(fp, 0, SEEK_END)))
{
DALI_LOG_ERROR("Error seeking WBMP data\n");
return false;
fsize = static_cast<unsigned int>(positionIndicator);
}
- if(0u == fsize)
+ if(DALI_UNLIKELY(0u == fsize))
{
return false;
}
- if(fseek(fp, 0, SEEK_SET))
+ if(DALI_UNLIKELY(fseek(fp, 0, SEEK_SET)))
{
DALI_LOG_ERROR("Error seeking WBMP data\n");
return false;
}
- if(fsize <= 4)
+ if(DALI_UNLIKELY(fsize <= 4))
{
DALI_LOG_ERROR("Error: WBMP Raw Data Not Found!\n");
return false;
headerSize = std::min(headerSize, fsize);
map.ResizeUninitialized(headerSize);
- if(fread(&map[0], 1, headerSize, fp) != headerSize)
+ if(DALI_UNLIKELY(fread(&map[0], 1, headerSize, fp) != headerSize))
{
DALI_LOG_WARNING("image file read opeation error!\n");
return false;
}
- if(extractMultiByteInteger(&type, &map[0], headerSize, &position) < 0)
+ const std::uint8_t* const inputBufferPtr = &map[0];
+
+ if(DALI_UNLIKELY(extractMultiByteInteger(&type, inputBufferPtr, headerSize, &position) < 0))
{
DALI_LOG_ERROR("Error: unable to read type!\n");
return false;
}
position++; /* skipping one byte */
- if(type != 0)
+ if(DALI_UNLIKELY(type != 0))
{
DALI_LOG_ERROR("Error: unknown format!\n");
return false;
}
- if(extractMultiByteInteger(&w, &map[0], headerSize, &position) < 0)
+ if(DALI_UNLIKELY(extractMultiByteInteger(&w, inputBufferPtr, headerSize, &position) < 0))
{
DALI_LOG_ERROR("Error: can not read width!\n");
return false;
}
- if(extractMultiByteInteger(&h, &map[0], headerSize, &position) < 0)
+ if(DALI_UNLIKELY(extractMultiByteInteger(&h, inputBufferPtr, headerSize, &position) < 0))
{
DALI_LOG_ERROR("Error: can not read height!\n");
return false;
}
- if((w < 1) || (h < 1) || (w > IMG_MAX_SIZE) || (h > IMG_MAX_SIZE))
+ if(DALI_UNLIKELY((w < 1) || (h < 1) || (w > IMG_MAX_SIZE) || (h > IMG_MAX_SIZE)))
{
DALI_LOG_ERROR("Error: file size is not supported!\n");
return false;
projects / platform / core / uifw / dali-adaptor.git / blobdiff