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Supermodel/Src/Util/BMPFile.h

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#ifndef INCLUDED_BMPFILE_HPP
#define INCLUDED_BMPFILE_HPP
#include "OSD/Logger.h"
#include <memory>
#include <string>
#include <cstdio>
#include <cstdint>
namespace Util
{
namespace detail
{
#pragma pack(push, 1)
struct BMPHeader
{
uint8_t id[2];
uint32_t file_size;
uint16_t reserved1;
uint16_t reserved2;
uint32_t bitmap_offset;
BMPHeader(uint32_t _file_size, uint32_t _bitmap_offset)
: file_size(_file_size),
reserved1(0),
reserved2(0),
bitmap_offset(_bitmap_offset)
{
id[0] = 'B';
id[1] = 'M';
}
};
// BITMAPV4HEADER
struct BMPInfoHeader
{
uint32_t size;
int32_t width;
int32_t height;
uint16_t num_planes;
uint16_t bits_per_pixel;
uint32_t compression_method;
uint32_t bitmap_size;
int32_t horizontal_resolution;
int32_t vertical_resolution;
uint32_t num_palette_colors;
uint32_t num_important_colors;
uint32_t red_mask;
uint32_t green_mask;
uint32_t blue_mask;
uint32_t alpha_mask;
uint32_t color_space;
uint32_t endpoints_red_x;
uint32_t endpoints_red_y;
uint32_t endpoints_red_z;
uint32_t endpoints_green_x;
uint32_t endpoints_green_y;
uint32_t endpoints_green_z;
uint32_t endpoints_blue_x;
uint32_t endpoints_blue_y;
uint32_t endpoints_blue_z;
uint32_t gamma_red;
uint32_t gamma_green;
uint32_t gamma_blue;
BMPInfoHeader(int32_t _width, int32_t _height)
: size(sizeof(BMPInfoHeader)),
width(_width),
height(_height),
num_planes(1),
bits_per_pixel(32),
compression_method(3), // BI_BITFIELDS
bitmap_size(_width*_height*4),
horizontal_resolution(2835), // 72 dpi
vertical_resolution(2835),
num_palette_colors(0),
num_important_colors(0),
red_mask(0x00ff0000),
green_mask(0x0000ff00),
blue_mask(0x000000ff),
alpha_mask(0xff000000),
color_space(1), // LCS_DEVICE_RGB
endpoints_red_x(0),
endpoints_red_y(0),
endpoints_red_z(0),
endpoints_green_x(0),
endpoints_green_y(0),
endpoints_green_z(0),
endpoints_blue_x(0),
endpoints_blue_y(0),
endpoints_blue_z(0),
gamma_red(0),
gamma_green(0),
gamma_blue(0)
{}
};
struct FileHeader
{
BMPHeader bmp_header;
BMPInfoHeader bmp_info_header;
FileHeader(int32_t width, int32_t height)
: bmp_header(sizeof(FileHeader) + width*height*3, sizeof(FileHeader)),
bmp_info_header(width, height)
{}
};
#pragma pack(pop)
}
struct RGBA8
{
static const unsigned bytes_per_pixel = 4;
static inline uint8_t GetRed(const uint8_t *pixel)
{
return pixel[0];
}
static inline uint8_t GetGreen(const uint8_t *pixel)
{
return pixel[1];
}
static inline uint8_t GetBlue(const uint8_t *pixel)
{
return pixel[2];
}
static inline uint8_t GetAlpha(const uint8_t *pixel)
{
return pixel[3];
}
};
// Texture format 0: TRRR RRGG GGGB BBBB, T = contour bit
template <bool EnableContour>
struct T1RGB5
{
static const unsigned bytes_per_pixel = 2;
static inline uint8_t GetRed(const uint8_t *pixel)
{
return uint8_t((255.0f / 31.0f) * float((*reinterpret_cast<const uint16_t *>(pixel) >> 10) & 0x1f));
}
static inline uint8_t GetGreen(const uint8_t *pixel)
{
return uint8_t((255.0f / 31.0f) * float((*reinterpret_cast<const uint16_t *>(pixel) >> 5) & 0x1f));
}
static inline uint8_t GetBlue(const uint8_t *pixel)
{
return uint8_t((255.0f / 31.0f) * float((*reinterpret_cast<const uint16_t *>(pixel) >> 0) & 0x1f));
}
static inline uint8_t GetAlpha(const uint8_t *pixel)
{
if (EnableContour)
{
bool t = (*reinterpret_cast<const uint16_t*>(pixel) >> 15) & 0x1;
return t ? uint8_t(0x00) : uint8_t(0xff); // T-bit indicates transparency
}
else
{
return 0xff; // force opaque
}
}
};
using T1RGB5ContourEnabled = T1RGB5<true>;
using T1RGB5ContourIgnored = T1RGB5<false>;
// Texture format 1: xxxx xxxx AAAA LLLL
struct A4L4Low
{
static const unsigned bytes_per_pixel = 2;
static inline uint8_t GetRed(const uint8_t* pixel)
{
return uint8_t((255.0f / 15.0f) * float((*reinterpret_cast<const uint16_t*>(pixel) >> 0) & 0xf));
}
static inline uint8_t GetGreen(const uint8_t* pixel)
{
return uint8_t((255.0f / 15.0f) * float((*reinterpret_cast<const uint16_t*>(pixel) >> 0) & 0xf));
}
static inline uint8_t GetBlue(const uint8_t* pixel)
{
return uint8_t((255.0f / 15.0f) * float((*reinterpret_cast<const uint16_t*>(pixel) >> 0) & 0xf));
}
static inline uint8_t GetAlpha(const uint8_t* pixel)
{
return uint8_t((255.0f / 15.0f) * float((*reinterpret_cast<const uint16_t*>(pixel) >> 4) & 0xf));
}
};
// Texture format 2: xxxx xxxx LLLL AAAA
struct L4A4Low
{
static const unsigned bytes_per_pixel = 2;
static inline uint8_t GetRed(const uint8_t* pixel)
{
return uint8_t((255.0f / 15.0f) * float((*reinterpret_cast<const uint16_t*>(pixel) >> 4) & 0xf));
}
static inline uint8_t GetGreen(const uint8_t* pixel)
{
return uint8_t((255.0f / 15.0f) * float((*reinterpret_cast<const uint16_t*>(pixel) >> 4) & 0xf));
}
static inline uint8_t GetBlue(const uint8_t* pixel)
{
return uint8_t((255.0f / 15.0f) * float((*reinterpret_cast<const uint16_t*>(pixel) >> 4) & 0xf));
}
static inline uint8_t GetAlpha(const uint8_t* pixel)
{
return uint8_t((255.0f / 15.0f) * float((*reinterpret_cast<const uint16_t*>(pixel) >> 0) & 0xf));
}
};
// Texture format 3: AAAA LLLL xxxx xxxx
struct A4L4High
{
static const unsigned bytes_per_pixel = 2;
static inline uint8_t GetRed(const uint8_t* pixel)
{
return uint8_t((255.0f / 15.0f) * float((*reinterpret_cast<const uint16_t*>(pixel) >> 8) & 0xf));
}
static inline uint8_t GetGreen(const uint8_t* pixel)
{
return uint8_t((255.0f / 15.0f) * float((*reinterpret_cast<const uint16_t*>(pixel) >> 8) & 0xf));
}
static inline uint8_t GetBlue(const uint8_t* pixel)
{
return uint8_t((255.0f / 15.0f) * float((*reinterpret_cast<const uint16_t*>(pixel) >> 8) & 0xf));
}
static inline uint8_t GetAlpha(const uint8_t* pixel)
{
return uint8_t((255.0f / 15.0f) * float((*reinterpret_cast<const uint16_t*>(pixel) >> 12) & 0xf));
}
};
// Texture format 4: LLLL AAAA xxxx xxxx
struct L4A4High
{
static const unsigned bytes_per_pixel = 2;
static inline uint8_t GetRed(const uint8_t* pixel)
{
return uint8_t((255.0f / 15.0f) * float((*reinterpret_cast<const uint16_t*>(pixel) >> 12) & 0xf));
}
static inline uint8_t GetGreen(const uint8_t* pixel)
{
return uint8_t((255.0f / 15.0f) * float((*reinterpret_cast<const uint16_t*>(pixel) >> 12) & 0xf));
}
static inline uint8_t GetBlue(const uint8_t* pixel)
{
return uint8_t((255.0f / 15.0f) * float((*reinterpret_cast<const uint16_t*>(pixel) >> 12) & 0xf));
}
static inline uint8_t GetAlpha(const uint8_t* pixel)
{
return uint8_t((255.0f / 15.0f) * float((*reinterpret_cast<const uint16_t*>(pixel) >> 8) & 0xf));
}
};
// Texture format 5: xxxx xxxx LLLL LLLL, where L=0xff is transparent and L!=0xff is opaque
struct L8Low
{
static const unsigned bytes_per_pixel = 2;
static inline uint8_t GetRed(const uint8_t* pixel)
{
return uint8_t((*reinterpret_cast<const uint16_t*>(pixel) >> 0) & 0xff);
}
static inline uint8_t GetGreen(const uint8_t* pixel)
{
return uint8_t((*reinterpret_cast<const uint16_t*>(pixel) >> 0) & 0xff);
}
static inline uint8_t GetBlue(const uint8_t* pixel)
{
return uint8_t((*reinterpret_cast<const uint16_t*>(pixel) >> 0) & 0xff);
}
static inline uint8_t GetAlpha(const uint8_t* pixel)
{
uint8_t l = uint8_t((*reinterpret_cast<const uint16_t*>(pixel) >> 0) & 0xff);
return l == 0xff ? 0 : 0xff;
}
};
// Texture format 6: LLLL LLLL xxxx xxxx, where L=0xff is transparent and L!=0xff is opaque
struct L8High
{
static const unsigned bytes_per_pixel = 2;
static inline uint8_t GetRed(const uint8_t* pixel)
{
return uint8_t((*reinterpret_cast<const uint16_t*>(pixel) >> 8) & 0xff);
}
static inline uint8_t GetGreen(const uint8_t* pixel)
{
return uint8_t((*reinterpret_cast<const uint16_t*>(pixel) >> 8) & 0xff);
}
static inline uint8_t GetBlue(const uint8_t* pixel)
{
return uint8_t((*reinterpret_cast<const uint16_t*>(pixel) >> 8) & 0xff);
}
static inline uint8_t GetAlpha(const uint8_t* pixel)
{
uint8_t l = uint8_t((*reinterpret_cast<const uint16_t*>(pixel) >> 8) & 0xff);
return l == 0xff ? 0 : 0xff;
}
};
// Texture format 7: RRRR GGGG BBBB AAAA
struct RGBA4
{
static const unsigned bytes_per_pixel = 2;
static inline uint8_t GetRed(const uint8_t *pixel)
{
return uint8_t((255.0f / 15.0f) * float((*reinterpret_cast<const uint16_t *>(pixel) >> 12) & 0xf));
}
static inline uint8_t GetGreen(const uint8_t *pixel)
{
return uint8_t((255.0f / 15.0f) * float((*reinterpret_cast<const uint16_t *>(pixel) >> 8) & 0xf));
}
static inline uint8_t GetBlue(const uint8_t *pixel)
{
return uint8_t((255.0f / 15.0f) * float((*reinterpret_cast<const uint16_t *>(pixel) >> 4) & 0xf));
}
static inline uint8_t GetAlpha(const uint8_t *pixel)
{
return uint8_t((255.0f / 15.0f) * float((*reinterpret_cast<const uint16_t *>(pixel) >> 0) & 0xf));
}
};
// Texture format 8: xxxx xxxx xxxx LLLL
// Texture format 9: xxxx xxxx LLLL xxxx
// Texture format 10: xxxx LLLL xxxx xxxx
// Texture format 11: LLLL xxxx xxxx xxxx
template <int Channel>
struct L4
{
static const unsigned bytes_per_pixel = 2;
static inline uint8_t GetRed(const uint8_t* pixel)
{
return uint8_t((255.0f / 15.0f) * float((*reinterpret_cast<const uint16_t*>(pixel) >> (Channel * 4)) & 0xf));
}
static inline uint8_t GetGreen(const uint8_t* pixel)
{
return uint8_t((255.0f / 15.0f) * float((*reinterpret_cast<const uint16_t*>(pixel) >> (Channel * 4)) & 0xf));
}
static inline uint8_t GetBlue(const uint8_t* pixel)
{
return uint8_t((255.0f / 15.0f) * float((*reinterpret_cast<const uint16_t*>(pixel) >> (Channel * 4)) & 0xf));
}
static inline uint8_t GetAlpha(const uint8_t* pixel)
{
uint8_t l = (*reinterpret_cast<const uint16_t*>(pixel) >> (Channel * 4)) & 0xf;
return l == 0x0f ? 0x00 : 0xff;
}
};
using L4Channel0 = L4<0>;
using L4Channel1 = L4<1>;
using L4Channel2 = L4<2>;
using L4Channel3 = L4<3>;
template <class SurfaceFormat>
static bool WriteSurfaceToBMP(const std::string &file_name, const uint8_t *pixels, int32_t width, int32_t height, bool flip_vertical)
{
using namespace detail;
size_t file_size = sizeof(FileHeader) + width*height*4;
std::shared_ptr<uint8_t> file(new uint8_t[file_size], std::default_delete<uint8_t[]>());
FileHeader *header = new (file.get()) FileHeader(width, height);
uint8_t *bmp = file.get() + sizeof(*header);
if (!flip_vertical)
{
for (int32_t y = height - 1; y >= 0; y--)
{
const uint8_t *src = &pixels[y * width * SurfaceFormat::bytes_per_pixel];
for (int32_t x = 0; x < width; x++)
{
*bmp++ = SurfaceFormat::GetBlue(src);
*bmp++ = SurfaceFormat::GetGreen(src);
*bmp++ = SurfaceFormat::GetRed(src);
*bmp++ = SurfaceFormat::GetAlpha(src);
src += SurfaceFormat::bytes_per_pixel;
}
}
}
else
{
for (int32_t y = 0; y < height; y++)
{
const uint8_t *src = &pixels[y * width * SurfaceFormat::bytes_per_pixel];
for (int32_t x = 0; x < width; x++)
{
*bmp++ = SurfaceFormat::GetBlue(src);
*bmp++ = SurfaceFormat::GetGreen(src);
*bmp++ = SurfaceFormat::GetRed(src);
*bmp++ = SurfaceFormat::GetAlpha(src);
src += SurfaceFormat::bytes_per_pixel;
}
}
}
FILE *fp = fopen(file_name.c_str(), "wb");
if (fp)
{
fwrite(file.get(), sizeof(uint8_t), file_size, fp);
fclose(fp);
}
else
{
ErrorLog("Unable to open '%s' for writing.", file_name.c_str());
return true;
}
return false;
}
} // Util
#endif // INCLUDED_BMPFILE_HPP
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