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D3D9: Fixed 16-bit texture formats.

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This commit is contained in:
Branimir Karadžić
2016-02-23 18:50:33 -08:00
parent d4d4d41e42
commit 6ef7724d40
3 changed files with 294 additions and 22 deletions
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97
src/image.cpp
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@@ -1252,6 +1252,26 @@ namespace bgfx
_dst[3] = float( ( (packed>>12) & 0xf) ) / 15.0f;
}
// RGBA4
void packBgra4(void* _dst, const float* _src)
{
*( (uint16_t*)_dst) = 0
| uint16_t(toUnorm(_src[0], 15.0f)<< 8)
| uint16_t(toUnorm(_src[1], 15.0f)<< 4)
| uint16_t(toUnorm(_src[2], 15.0f) )
| uint16_t(toUnorm(_src[3], 15.0f)<<12)
;
}
void unpackBgra4(float* _dst, const void* _src)
{
uint16_t packed = *( (const uint16_t*)_src);
_dst[0] = float( ( (packed>> 8) & 0xf) ) / 15.0f;
_dst[1] = float( ( (packed>> 4) & 0xf) ) / 15.0f;
_dst[2] = float( ( (packed ) & 0xf) ) / 15.0f;
_dst[3] = float( ( (packed>>12) & 0xf) ) / 15.0f;
}
// RGB5A1
void packRgb5a1(void* _dst, const float* _src)
{
@@ -1272,6 +1292,26 @@ namespace bgfx
_dst[3] = float( ( (packed>>14) & 0x1) );
}
// BGR5A1
void packBgr5a1(void* _dst, const float* _src)
{
*( (uint16_t*)_dst) = 0
| uint16_t(toUnorm(_src[0], 31.0f)<<10)
| uint16_t(toUnorm(_src[1], 31.0f)<< 5)
| uint16_t(toUnorm(_src[2], 31.0f) )
| uint16_t(toUnorm(_src[3], 1.0f)<<15)
;
}
void unpackBgr5a1(float* _dst, const void* _src)
{
uint16_t packed = *( (const uint16_t*)_src);
_dst[0] = float( ( (packed>>10) & 0x1f) ) / 31.0f;
_dst[1] = float( ( (packed>> 5) & 0x1f) ) / 31.0f;
_dst[2] = float( ( (packed ) & 0x1f) ) / 31.0f;
_dst[3] = float( ( (packed>>14) & 0x1) );
}
// RGB10A2
void packRgb10A2(void* _dst, const float* _src)
{
@@ -1310,9 +1350,6 @@ namespace bgfx
_dst[2] = bx::halfToFloat( (packed>>17) & 0x7fe0);
}
typedef void (*PackFn)(void*, const float*);
typedef void (*UnpackFn)(float*, const void*);
struct PackUnpack
{
PackFn pack;
@@ -1405,6 +1442,40 @@ namespace bgfx
;
}
void imageConvert(void* _dst, uint32_t _bpp, PackFn _pack, const void* _src, UnpackFn _unpack, uint32_t _size)
{
const uint8_t* src = (uint8_t*)_src;
uint8_t* dst = (uint8_t*)_dst;
const uint32_t size = _size * 8 / _bpp;
for (uint32_t ii = 0; ii < size; ++ii)
{
float rgba[4];
_unpack(rgba, &src[ii*_bpp/8]);
_pack(&dst[ii*_bpp/8], rgba);
}
}
void imageConvert(void* _dst, uint32_t _dstBpp, PackFn _pack, const void* _src, uint32_t _srcBpp, UnpackFn _unpack, uint32_t _width, uint32_t _height)
{
const uint8_t* src = (uint8_t*)_src;
uint8_t* dst = (uint8_t*)_dst;
const uint32_t srcPitch = _width * _srcBpp / 8;
const uint32_t dstPitch = _width * _dstBpp / 8;
for (uint32_t yy = 0; yy < _height; ++yy, src += srcPitch, dst += dstPitch)
{
for (uint32_t xx = 0; xx < _width; ++xx)
{
float rgba[4];
_unpack(rgba, &src[xx*_srcBpp/8]);
_pack(&dst[xx*_dstBpp/8], rgba);
}
}
}
bool imageConvert(void* _dst, TextureFormat::Enum _dstFormat, const void* _src, TextureFormat::Enum _srcFormat, uint32_t _width, uint32_t _height)
{
UnpackFn unpack = s_packUnpack[_srcFormat].unpack;
@@ -1415,23 +1486,9 @@ namespace bgfx
return false;
}
const uint8_t* src = (uint8_t*)_src;
uint8_t* dst = (uint8_t*)_dst;
const uint32_t srcBpp = s_imageBlockInfo[_srcFormat].bitsPerPixel;
const uint32_t dstBpp = s_imageBlockInfo[_dstFormat].bitsPerPixel;
const uint32_t srcPitch = _width * srcBpp / 8;
const uint32_t dstPitch = _width * dstBpp / 8;
for (uint32_t yy = 0; yy < _height; ++yy, src += srcPitch, dst += dstPitch)
{
for (uint32_t xx = 0; xx < _width; ++xx)
{
float rgba[4];
unpack(rgba, &src[xx*srcBpp/8]);
pack(&dst[xx*dstBpp/8], rgba);
}
}
const uint32_t srcBpp = s_imageBlockInfo[_srcFormat].bitsPerPixel;
const uint32_t dstBpp = s_imageBlockInfo[_dstFormat].bitsPerPixel;
imageConvert(_dst, dstBpp, pack, _src, srcBpp, unpack, _width, _height);
return true;
}