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burningvideo: regenerateMipMapLevels, allow mipmap upload

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git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6095 dfc29bdd-3216-0410-991c-e03cc46cb475
This commit is contained in:
engineer_apple
2020-02-23 02:23:10 +00:00
parent 0de51c3c3d
commit f5362a658d
3 changed files with 51 additions and 26 deletions
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44
source/Irrlicht/CSoftwareTexture2.cpp
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@ -29,15 +29,17 @@ CSoftwareTexture2::CSoftwareTexture2(IImage* image, const io::path& name, u32 fl
#endif
#ifndef SOFTWARE_DRIVER_2_MIPMAPPING
Flags &= ~GEN_MIPMAP;
Flags &= ~(GEN_MIPMAP| GEN_MIPMAP_AUTO);
#endif
//set baseclass properties
DriverType = EDT_BURNINGSVIDEO;
ColorFormat = BURNINGSHADER_COLOR_FORMAT;
IsRenderTarget = (Flags & IS_RENDERTARGET) != 0;
HasMipMaps = (Flags & GEN_MIPMAP) != 0;
MipMap0_Area[0] = 1;
MipMap0_Area[1] = 1;
LodBIAS = 1.f;
for ( size_t i = 0; i < SOFTWARE_DRIVER_2_MIPMAPPING_MAX; ++i ) MipMap[i] = 0;
if (!image) return;
@ -135,9 +137,9 @@ void CSoftwareTexture2::regenerateMipMapLevels(void* data, u32 layer)
core::dimension2d<u32> newSize;
//deactivated outside mipdata until TA knows how to handle this.
if (HasMipMaps && (0 == data || 1))
if (HasMipMaps && ( (Flags & GEN_MIPMAP_AUTO) || 0 == data ) )
{
//need memory also if autogen mipmap disabled
for (i = 1; i < SOFTWARE_DRIVER_2_MIPMAPPING_MAX; ++i)
{
const core::dimension2du& upperDim = MipMap[i - 1]->getDimension();
@ -158,9 +160,27 @@ void CSoftwareTexture2::regenerateMipMapLevels(void* data, u32 layer)
}
else if (HasMipMaps && data)
{
core::dimension2d<u32> origSize = Size;
//deactivated outside mipdata until TA knows how to handle this.
for (i = 1; i < SOFTWARE_DRIVER_2_MIPMAPPING_MAX; ++i)
//query mipmap dimension
u8* mip_current = (u8*)data;
const u8* mip_end = (u8*)data;
core::dimension2d<u32> origSize = OriginalSize;
i = 1;
do
{
if (origSize.Width > 1) origSize.Width >>= 1;
if (origSize.Height > 1) origSize.Height >>= 1;
mip_end += IImage::getDataSizeFromFormat(OriginalFormat, origSize.Width, origSize.Height);
i += 1;
} while ((origSize.Width != 1 || origSize.Height != 1) && i < SOFTWARE_DRIVER_2_MIPMAPPING_MAX);
//TODO: this is not true
LodBIAS = i*0.75f;
origSize = OriginalSize;
for (i = 1; i < SOFTWARE_DRIVER_2_MIPMAPPING_MAX && mip_current < mip_end; ++i)
{
const core::dimension2du& upperDim = MipMap[i - 1]->getDimension();
//isotropic
@ -169,12 +189,12 @@ void CSoftwareTexture2::regenerateMipMapLevels(void* data, u32 layer)
if (upperDim == newSize)
break;
origSize.Width = core::s32_max(1, origSize.Width >> 1);
origSize.Height = core::s32_max(1, origSize.Height >> 1);
if (origSize.Width > 1) origSize.Width >>= 1;
if (origSize.Height > 1) origSize.Height >>= 1;
if (OriginalFormat != BURNINGSHADER_COLOR_FORMAT)
{
IImage* tmpImage = new CImage(OriginalFormat, origSize, data, true, false);
IImage* tmpImage = new CImage(OriginalFormat, origSize, mip_current, true, false);
MipMap[i] = new CImage(BURNINGSHADER_COLOR_FORMAT, newSize);
if (origSize == newSize)
tmpImage->copyTo(MipMap[i]);
@ -185,16 +205,16 @@ void CSoftwareTexture2::regenerateMipMapLevels(void* data, u32 layer)
else
{
if (origSize == newSize)
MipMap[i] = new CImage(BURNINGSHADER_COLOR_FORMAT, newSize, data, false);
MipMap[i] = new CImage(BURNINGSHADER_COLOR_FORMAT, newSize, mip_current, false);
else
{
MipMap[i] = new CImage(BURNINGSHADER_COLOR_FORMAT, newSize);
IImage* tmpImage = new CImage(BURNINGSHADER_COLOR_FORMAT, origSize, data, true, false);
IImage* tmpImage = new CImage(BURNINGSHADER_COLOR_FORMAT, origSize, mip_current, true, false);
tmpImage->copyToScalingBoxFilter(MipMap[i]);
tmpImage->drop();
}
}
data = (u8*)data + origSize.getArea()*IImage::getBitsPerPixelFromFormat(OriginalFormat) / 8;
mip_current += IImage::getDataSizeFromFormat(OriginalFormat, origSize.Width, origSize.Height);
}
}
@ -212,7 +232,7 @@ void CSoftwareTexture2::regenerateMipMapLevels(void* data, u32 layer)
*/
static u32 color[] = {
0xFFFFFFFF,0xFFFF0000,0xFF00FF00,0xFF0000FF,
0xFF0000FF,0xFF0000FF,0xFF0000FF,0xFF0000FF,
0xFFFFFF00,0xFF00FFFF,0xFFFF00FF,0xFF0000FF,
0xFF0000FF,0xFF0000FF,0xFF0000FF,0xFF0000FF,
0xFF0000FF,0xFF0000FF,0xFF0000FF,0xFFFF00FF
};