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CImageLoaderBMP now supports loading 1-bit images with palette data

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The feature everyone has been waiting for!!! Or not...
Anyway it works now :-)

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@6600 dfc29bdd-3216-0410-991c-e03cc46cb475
This commit is contained in:
cutealien 2024-03-13 19:30:48 +00:00
parent b17fe835bc
commit 8f8a4ef5e1
4 changed files with 19 additions and 5 deletions
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1
changes.txt
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@ -1,6 +1,7 @@
--------------------------
Changes in 1.9 (not yet released)
- CImageLoaderBMP now supports loading 1-bit images with palette data
- Hardware meshbuffers are now deleted when they hold the last reference to a meshbuffer
- Variable order inside SMaterial and SMaterialLayer changed for better packing
- line3d::getClosestPoint can now chose between using line or line segment

4
source/Irrlicht/CColorConverter.cpp
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@ -12,7 +12,7 @@ namespace video
{
//! converts a monochrome bitmap to A1R5G5B5 data
void CColorConverter::convert1BitTo16Bit(const u8* in, s16* out, u32 width, u32 height, u32 linepad, bool flip)
void CColorConverter::convert1BitTo16Bit(const u8* in, s16* out, u32 width, u32 height, u32 linepad, bool flip, s16 col0, s16 col1)
{
if (!in || !out)
return;
@ -28,7 +28,7 @@ void CColorConverter::convert1BitTo16Bit(const u8* in, s16* out, u32 width, u32
for (u32 x=0; x<width; ++x)
{
out[x] = *in>>shift & 0x01 ? (s16)0xffff : (s16)0x8000;
out[x] = *in>>shift & 0x01 ? col1 : col0;
if ((--shift)<0) // 8 pixel done
{

4
source/Irrlicht/CColorConverter.h
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@ -18,7 +18,7 @@ class CColorConverter
public:
//! converts a monochrome bitmap to A1R5G5B5
static void convert1BitTo16Bit(const u8* in, s16* out, u32 width, u32 height, u32 linepad=0, bool flip=false);
static void convert1BitTo16Bit(const u8* in, s16* out, u32 width, u32 height, u32 linepad=0, bool flip=false, s16 col0=(s16)0x8000, s16 col1=(s16)0xffff);
//! converts a 4 bit palettized image to A1R5G5B5
static void convert4BitTo16Bit(const u8* in, s16* out, u32 width, u32 height, const s32* palette, u32 linepad=0, bool flip=false);
@ -32,7 +32,7 @@ public:
//! converts a 8 bit palettized or non palettized image (A8) into A8R8G8B8
static void convert8BitTo32Bit(const u8* in, u8* out, u32 width, u32 height, const u8* palette, u32 linepad = 0, bool flip=false);
//! converts R8G8B8 16 bit data to A1R5G5B5 data
//! converts 16bit data to 16bit data (can flip and do endian conversion)
static void convert16BitTo16Bit(const s16* in, s16* out, u32 width, u32 height, u32 linepad=0, bool flip=false);
//! copies R8G8B8 24 bit data to 24 data, and flips and

15
source/Irrlicht/CImageLoaderBMP.cpp
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@ -414,7 +414,20 @@ IImage* CImageLoaderBMP::loadImage(io::IReadFile* file) const
case 1:
image = new CImage(ECF_A1R5G5B5, dim);
if (image)
CColorConverter::convert1BitTo16Bit(bmpData, (s16*)image->getData(), header.Width, header.Height, pitch, true);
{
s16 colors[2] = {(s16)0x8000, (s16)0xffff }; // off: only alpha set, on: all white
if ( paletteSize == 1 )
{
u8 in = 0;
CColorConverter::convert8BitTo16Bit(&in, colors, 1, 1, paletteData);
}
else if ( paletteSize >= 2 )
{
u8 in[2] = { 0, 1 };
CColorConverter::convert8BitTo16Bit(in, colors, 2, 1, paletteData);
}
CColorConverter::convert1BitTo16Bit(bmpData, (s16*)image->getData(), header.Width, header.Height, pitch, true, colors[0], colors[1]);
}
break;
case 4:
image = new CImage(ECF_A1R5G5B5, dim);