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texturec: Added *.exr output.

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This commit is contained in:
Branimir Karadžić
2018-04-18 16:34:29 -07:00
parent 5d79703929
commit f61ae45032
3 changed files with 164 additions and 2 deletions
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124
src/image.cpp
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@@ -3495,6 +3495,130 @@ namespace bimg
return total;
}
int32_t imageWriteExr(bx::WriterI* _writer, uint32_t _width, uint32_t _height, uint32_t _srcPitch, const void* _src, TextureFormat::Enum _format, bool _yflip, bx::Error* _err)
{
BX_ERROR_SCOPE(_err);
switch (_format)
{
case TextureFormat::RGBA16F:
break;
default:
BX_ERROR_SET(_err, BIMG_ERROR, "EXR: Unsupported texture format.");
return 0;
}
int32_t total = 0;
total += bx::write(_writer, "v/1\x01", _err);
total += bx::writeLE(_writer, uint32_t(2), _err);
total += bx::write(_writer, "channels", _err);
total += bx::write(_writer, '\0', _err);
total += bx::write(_writer, "chlist", _err);
total += bx::write(_writer, '\0', _err);
total += bx::writeLE(_writer, uint32_t(55), _err);
const uint8_t cdata[] = { 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0 };
total += bx::write(_writer, 'B', _err);
total += bx::write(_writer, cdata, BX_COUNTOF(cdata), _err);
total += bx::write(_writer, 'G', _err);
total += bx::write(_writer, cdata, BX_COUNTOF(cdata), _err);
total += bx::write(_writer, 'R', _err);
total += bx::write(_writer, cdata, BX_COUNTOF(cdata), _err);
total += bx::write(_writer, '\0', _err);
total += bx::write(_writer, "compression", _err);
total += bx::write(_writer, '\0', _err);
total += bx::write(_writer, "compression", _err);
total += bx::write(_writer, '\0', _err);
total += bx::writeLE(_writer, uint32_t(1), _err);
total += bx::write(_writer, '\0', _err); // no compression
total += bx::write(_writer, "dataWindow", _err);
total += bx::write(_writer, '\0', _err);
total += bx::write(_writer, "box2i", _err);
total += bx::write(_writer, '\0', _err);
total += bx::writeLE(_writer, uint32_t(16), _err);
total += bx::writeRep(_writer, '\0', 8, _err);
total += bx::writeLE(_writer, _width-1, _err);
total += bx::writeLE(_writer, _height-1, _err);
total += bx::write(_writer, "displayWindow", _err);
total += bx::write(_writer, '\0', _err);
total += bx::write(_writer, "box2i", _err);
total += bx::write(_writer, '\0', _err);
total += bx::writeLE(_writer, uint32_t(16), _err);
total += bx::writeRep(_writer, '\0', 8, _err);
total += bx::writeLE(_writer, _width-1, _err);
total += bx::writeLE(_writer, _height-1, _err);
total += bx::write(_writer, "lineOrder", _err);
total += bx::write(_writer, '\0', _err);
total += bx::write(_writer, "lineOrder", _err);
total += bx::write(_writer, '\0', _err);
total += bx::writeLE(_writer, uint32_t(1), _err);
total += bx::write(_writer, _yflip, _err);
total += bx::write(_writer, "pixelAspectRatio", _err);
total += bx::write(_writer, '\0', _err);
total += bx::write(_writer, "float", _err);
total += bx::write(_writer, '\0', _err);
total += bx::writeLE(_writer, uint32_t(4), _err);
total += bx::writeLE(_writer, 1.0f, _err);
total += bx::write(_writer, "screenWindowCenter", _err);
total += bx::write(_writer, '\0', _err);
total += bx::write(_writer, "v2f", _err);
total += bx::write(_writer, '\0', _err);
total += bx::writeLE(_writer, uint32_t(8), _err);
total += bx::writeRep(_writer, '\0', 8, _err);
total += bx::write(_writer, "screenWindowWidth", _err);
total += bx::write(_writer, '\0', _err);
total += bx::write(_writer, "float", _err);
total += bx::write(_writer, '\0', _err);
total += bx::writeLE(_writer, uint32_t(4), _err);
total += bx::writeLE(_writer, 1.0f, _err);
total += bx::write(_writer, '\0', _err);
const uint32_t exrStride = _width*6 /* sizeof(RGB16F) */;
uint64_t offset = 0;
for (uint32_t yy = 0; yy < _height && _err->isOk(); ++yy)
{
total += bx::writeLE(_writer, (offset), _err);
offset += exrStride + 8 /* offset */;
}
const uint8_t* data = (const uint8_t*)_src;
for (uint32_t yy = 0; yy < _height && _err->isOk(); ++yy)
{
total += bx::writeLE(_writer, yy, _err);
total += bx::writeLE(_writer, exrStride, _err);
for (uint32_t xx = 0; xx < _width && _err->isOk(); ++xx)
{
total += bx::write(_writer, &data[xx*8+4], 2, _err);
}
for (uint32_t xx = 0; xx < _width && _err->isOk(); ++xx)
{
total += bx::write(_writer, &data[xx*8+2], 2, _err);
}
for (uint32_t xx = 0; xx < _width && _err->isOk(); ++xx)
{
total += bx::write(_writer, &data[xx*8+0], 2, _err);
}
data += _srcPitch;
}
return total;
}
static int32_t imageWriteDdsHeader(bx::WriterI* _writer, TextureFormat::Enum _format, bool _cubeMap, uint32_t _width, uint32_t _height, uint32_t _depth, uint8_t _numMips, bx::Error* _err)
{
BX_ERROR_SCOPE(_err);