bgfx/tools/texturec/texturec.cpp

190 lines
4.3 KiB
C++

/*
* Copyright 2011-2013 Branimir Karadzic. All rights reserved.
* License: http://www.opensource.org/licenses/BSD-2-Clause
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
// Just hacking DDS loading code in here.
#include "bgfx_p.h"
using namespace bgfx;
#include "image.h"
#if 0
# define BX_TRACE(_format, ...) fprintf(stderr, "" _format "\n", ##__VA_ARGS__)
#endif // DEBUG
#include <bx/bx.h>
#include <bx/commandline.h>
#include <bx/uint32_t.h>
namespace bgfx
{
const Memory* alloc(uint32_t _size)
{
Memory* mem = (Memory*)::realloc(NULL, sizeof(Memory) + _size);
mem->size = _size;
mem->data = (uint8_t*)mem + sizeof(Memory);
return mem;
}
void saveTga(const char* _filePath, uint32_t _width, uint32_t _height, uint32_t _srcPitch, const void* _src, bool _grayscale = false, bool _yflip = false)
{
FILE* file = fopen(_filePath, "wb");
if ( NULL != file )
{
uint8_t type = _grayscale ? 3 : 2;
uint8_t bpp = _grayscale ? 8 : 32;
putc(0, file);
putc(0, file);
putc(type, file);
putc(0, file);
putc(0, file);
putc(0, file);
putc(0, file);
putc(0, file);
putc(0, file);
putc(0, file);
putc(0, file);
putc(0, file);
putc(_width&0xff, file);
putc( (_width>>8)&0xff, file);
putc(_height&0xff, file);
putc( (_height>>8)&0xff, file);
putc(bpp, file);
putc(32, file);
uint32_t dstPitch = _width*bpp/8;
if (_yflip)
{
uint8_t* data = (uint8_t*)_src + dstPitch*_height - _srcPitch;
for (uint32_t yy = 0; yy < _height; ++yy)
{
fwrite(data, dstPitch, 1, file);
data -= _srcPitch;
}
}
else
{
uint8_t* data = (uint8_t*)_src;
for (uint32_t yy = 0; yy < _height; ++yy)
{
fwrite(data, dstPitch, 1, file);
data += _srcPitch;
}
}
fclose(file);
}
}
}
int main(int _argc, const char* _argv[])
{
bx::CommandLine cmdLine(_argc, _argv);
const char* inputFileName = cmdLine.findOption('i');
if (NULL == inputFileName)
{
return 0;
}
bx::CrtFileReader reader;
bx::open(&reader, inputFileName);
uint32_t size = (uint32_t)bx::getSize(&reader);
const Memory* mem = alloc(size);
bx::read(&reader, mem->data, mem->size);
bx::close(&reader);
ImageContainer imageContainer;
if (imageParse(imageContainer, mem->data, mem->size) )
{
bool decompress = cmdLine.hasArg('d');
if (decompress
|| 0 == imageContainer.m_format)
{
for (uint8_t side = 0, numSides = imageContainer.m_cubeMap ? 6 : 1; side < numSides; ++side)
{
uint32_t width = imageContainer.m_width;
uint32_t height = imageContainer.m_height;
for (uint32_t lod = 0, num = imageContainer.m_numMips; lod < num; ++lod)
{
width = bx::uint32_max(1, width);
height = bx::uint32_max(1, height);
ImageMip mip;
if (imageGetRawData(imageContainer, side, lod, mem->data, mem->size, mip) )
{
uint32_t dstpitch = width*4;
uint8_t* bits = (uint8_t*)malloc(dstpitch*height);
if (width != mip.m_width
|| height != mip.m_height)
{
uint8_t* temp = (uint8_t*)realloc(NULL, mip.m_width*mip.m_height*4);
imageDecodeToBgra8(temp, mip.m_data, mip.m_width, mip.m_height, mip.m_format);
uint32_t srcpitch = mip.m_width*4;
for (uint32_t yy = 0; yy < height; ++yy)
{
uint8_t* src = &temp[yy*srcpitch];
uint8_t* dst = &bits[yy*dstpitch];
for (uint32_t xx = 0; xx < width; ++xx)
{
memcpy(dst, src, 4);
dst += 4;
src += 4;
}
}
free(temp);
}
else
{
imageDecodeToBgra8(bits, mip.m_data, mip.m_width, mip.m_height, mip.m_format);
}
char filePath[256];
bx::snprintf(filePath, sizeof(filePath), "mip%d_%d.tga", side, lod);
saveTga(filePath, width, height, dstpitch, bits);
free(bits);
}
width >>= 1;
height >>= 1;
}
}
}
else
{
for (uint32_t lod = 0, num = imageContainer.m_numMips; lod < num; ++lod)
{
ImageMip mip;
if (imageGetRawData(imageContainer, 0, lod, mem->data, mem->size, mip) )
{
char filePath[256];
bx::snprintf(filePath, sizeof(filePath), "mip%d.bin", lod);
bx::CrtFileWriter writer;
bx::open(&writer, filePath);
printf("mip%d, size %d\n", lod, mip.m_size);
bx::write(&writer, mip.m_data, mip.m_size);
bx::close(&writer);
}
}
}
}
return EXIT_SUCCESS;
}