void addbitmap(const bitmap& bmp)
{
size_t id = bmp.id();
if (available(id))
return;
glGenTextures(1, &bitmaps[id]);
glBindTexture(GL_TEXTURE_2D, bitmaps[id]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA,
bmp.width(), bmp.height(), 0,
GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, bmp.data());
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
}
pair<imgcontext, size_t> imagecache::createimage(bitmap bmp)
{
size_t id = bmp.id();
if (temp[imgcon][id] || cache[imgcon][id])
{
return make_pair(imgcon, id);
}
else
{
IWICBitmap* wic = 0;
imgfactory->CreateBitmapFromMemory(
bmp.width(), bmp.height(),
GUID_WICPixelFormat32bppBGRA,
4 * bmp.width(),
bmp.length(),
(BYTE*)bmp.data(),
&wic);
if (wic)
{
IWICFormatConverter* spConverter = 0;
int result = imgfactory->CreateFormatConverter(&spConverter);
if (result == 0)
{
spConverter->Initialize(wic,
GUID_WICPixelFormat32bppPBGRA,
WICBitmapDitherTypeNone, NULL, 0.f,
WICBitmapPaletteTypeMedianCut);
imgfactory->CreateBitmapFromSource(spConverter, WICBitmapNoCache, &temp[imgcon][id]);
spConverter->Release();
}
wic->Release();
}
}
return make_pair(imgcon, id);
}
