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Add support for R16 in DDS headers.

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Cleanup DDS header output code.
Temporary testing code added to nvcompress.
This commit is contained in:
castano
2009-07-28 08:05:23 +00:00
parent 573cc1b371
commit cb62c3c461
3 changed files with 87 additions and 47 deletions
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115
src/nvtt/Context.cpp
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@ -392,13 +392,25 @@ bool Compressor::Private::outputHeader(const InputOptions::Private & inputOption
{
if (compressionOptions.format == Format_RGBA)
{
if (compressionOptions.bitcount == 16)
{
// B5G6R5_UNORM
// B5G5R5A1_UNORM
supported = false;
int bitcount = compressionOptions.bitcount;
if (bitcount == 0) {
bitcount = compressionOptions.rsize + compressionOptions.gsize + compressionOptions.bsize + compressionOptions.asize;
}
else if (compressionOptions.bitcount == 32)
if (bitcount == 16)
{
if (compressionOptions.rsize == 16)
{
header.setDX10Format(56); // R16_UNORM
}
else
{
// B5G6R5_UNORM
// B5G5R5A1_UNORM
supported = false;
}
}
else if (bitcount == 32)
{
// B8G8R8A8_UNORM
// B8G8R8X8_UNORM
@ -443,44 +455,63 @@ bool Compressor::Private::outputHeader(const InputOptions::Private & inputOption
{
if (compressionOptions.format == Format_RGBA)
{
header.setPitch(computePitch(inputOptions.targetWidth, compressionOptions.bitcount));
// Get output bit count.
header.setPitch(computePitch(inputOptions.targetWidth, compressionOptions.getBitCount()));
if (compressionOptions.bitcount != 0)
if (compressionOptions.pixelType == PixelType_Float)
{
header.setPixelFormat(compressionOptions.bitcount, compressionOptions.rmask, compressionOptions.gmask, compressionOptions.bmask, compressionOptions.amask);
}
else
{
if (compressionOptions.pixelType == PixelType_Float)
if (compressionOptions.rsize == 16 && compressionOptions.gsize == 0 && compressionOptions.bsize == 0 && compressionOptions.asize == 0)
{
if (compressionOptions.rsize == 16 && compressionOptions.gsize == 0 && compressionOptions.bsize == 0 && compressionOptions.asize == 0)
{
header.setFormatCode(111); // D3DFMT_R16F
}
else if (compressionOptions.rsize == 16 && compressionOptions.gsize == 16 && compressionOptions.bsize == 0 && compressionOptions.asize == 0)
{
header.setFormatCode(112); // D3DFMT_G16R16F
}
else if (compressionOptions.rsize == 16 && compressionOptions.gsize == 16 && compressionOptions.bsize == 16 && compressionOptions.asize == 16)
{
header.setFormatCode(113); // D3DFMT_A16B16G16R16F
}
else if (compressionOptions.rsize == 32 && compressionOptions.gsize == 0 && compressionOptions.bsize == 0 && compressionOptions.asize == 0)
{
header.setFormatCode(114); // D3DFMT_R32F
}
else if (compressionOptions.rsize == 32 && compressionOptions.gsize == 32 && compressionOptions.bsize == 0 && compressionOptions.asize == 0)
{
header.setFormatCode(115); // D3DFMT_G32R32F
}
else if (compressionOptions.rsize == 32 && compressionOptions.gsize == 32 && compressionOptions.bsize == 32 && compressionOptions.asize == 32)
{
header.setFormatCode(116); // D3DFMT_A32B32G32R32F
}
else
{
supported = false;
}
header.setFormatCode(111); // D3DFMT_R16F
}
else if (compressionOptions.rsize == 16 && compressionOptions.gsize == 16 && compressionOptions.bsize == 0 && compressionOptions.asize == 0)
{
header.setFormatCode(112); // D3DFMT_G16R16F
}
else if (compressionOptions.rsize == 16 && compressionOptions.gsize == 16 && compressionOptions.bsize == 16 && compressionOptions.asize == 16)
{
header.setFormatCode(113); // D3DFMT_A16B16G16R16F
}
else if (compressionOptions.rsize == 32 && compressionOptions.gsize == 0 && compressionOptions.bsize == 0 && compressionOptions.asize == 0)
{
header.setFormatCode(114); // D3DFMT_R32F
}
else if (compressionOptions.rsize == 32 && compressionOptions.gsize == 32 && compressionOptions.bsize == 0 && compressionOptions.asize == 0)
{
header.setFormatCode(115); // D3DFMT_G32R32F
}
else if (compressionOptions.rsize == 32 && compressionOptions.gsize == 32 && compressionOptions.bsize == 32 && compressionOptions.asize == 32)
{
header.setFormatCode(116); // D3DFMT_A32B32G32R32F
}
else
{
supported = false;
}
}
else // Fixed point
{
const uint bitcount = compressionOptions.getBitCount();
if (compressionOptions.bitcount != 0)
{
// Masks already computed.
header.setPixelFormat(compressionOptions.bitcount, compressionOptions.rmask, compressionOptions.gmask, compressionOptions.bmask, compressionOptions.amask);
}
else if (bitcount <= 32)
{
// Compute pixel format masks.
const uint ashift = 0;
const uint bshift = ashift + compressionOptions.asize;
const uint gshift = bshift + compressionOptions.bsize;
const uint rshift = gshift + compressionOptions.gsize;
const uint rmask = ((1 << compressionOptions.rsize) - 1) << rshift;
const uint gmask = ((1 << compressionOptions.gsize) - 1) << gshift;
const uint bmask = ((1 << compressionOptions.bsize) - 1) << bshift;
const uint amask = ((1 << compressionOptions.asize) - 1) << ashift;
header.setPixelFormat(bitcount, rmask, gmask, bmask, amask);
}
else
{
@ -590,7 +621,7 @@ bool Compressor::Private::compressMipmaps(uint f, const InputOptions::Private &
{
if (outputOptions.outputHandler)
{
int size = computeImageSize(w, h, d, compressionOptions.bitcount, compressionOptions.format);
int size = computeImageSize(w, h, d, compressionOptions.getBitCount(), compressionOptions.format);
outputOptions.outputHandler->beginImage(size, w, h, d, f, m);
}