void Texture2D::init(int w, int h, TextureInternalFormat tf, TextureFormat f, PixelType t,
const Parameters ¶ms, const Buffer::Parameters &s, const Buffer &pixels)
{
Texture::init(tf, params);
this->w = w;
this->h = h;
pixels.bind(GL_PIXEL_UNPACK_BUFFER);
if (isCompressed() && s.compressedSize() > 0) {
glCompressedTexImage2D(textureTarget, 0, getTextureInternalFormat(internalFormat), w, h, 0, s.compressedSize(), pixels.data(0));
} else {
s.set();
glTexImage2D(textureTarget, 0, getTextureInternalFormat(internalFormat), w, h, 0, getTextureFormat(f), getPixelType(t), pixels.data(0));
s.unset();
}
pixels.unbind(GL_PIXEL_UNPACK_BUFFER);
generateMipMap();
if (FrameBuffer::getError() != 0) {
throw exception();
}
}
Texture2DResource(ptr<ResourceManager> manager, const string &name, ptr<ResourceDescriptor> desc, const TiXmlElement *e = NULL) :
ResourceTemplate<0, Texture2D>(manager, name, desc)
{
e = e == NULL ? desc->descriptor : e;
TextureInternalFormat tf;
TextureFormat f;
PixelType t;
Texture::Parameters params;
Buffer::Parameters s;
int w;
int h;
try {
checkParameters(desc, e, "name,source,internalformat,format,type,min,mag,wraps,wrapt,minLod,maxLod,compare,borderType,borderr,borderg,borderb,bordera,maxAniso,width,height,");
getIntParameter(desc, e, "width", &w);
getIntParameter(desc, e, "height", &h);
getParameters(desc, e, tf, f, t);
getParameters(desc, e, params);
s.compressedSize(desc->getSize());
init(w, h, tf, f, t, params, s, CPUBuffer(desc->getData()));
desc->clearData();
} catch (...) {
desc->clearData();
throw exception();
}
}
Texture3DResource(ptr<ResourceManager> manager, const string &name, ptr<ResourceDescriptor> desc, const TiXmlElement *e = NULL) :
ResourceTemplate<0, Texture3D>(manager, name, desc)
{
e = e == NULL ? desc->descriptor : e;
TextureInternalFormat tf;
TextureFormat f;
PixelType t;
Texture::Parameters params;
Buffer::Parameters s;
int w;
int h;
int d;
try {
checkParameters(desc, e, "name,source,internalformat,format,type,min,mag,wraps,wrapt,wrapr,minLod,maxLod,width,height,depth,");
getIntParameter(desc, e, "width", &w);
getIntParameter(desc, e, "height", &h);
getIntParameter(desc, e, "depth", &d);
if (h % d != 0) {
if (Logger::ERROR_LOGGER != NULL) {
log(Logger::ERROR_LOGGER, desc, e, "Inconsistent 'height' and 'depth' attributes");
}
throw exception();
}
getParameters(desc, e, tf, f, t);
getParameters(desc, e, params);
s.compressedSize(desc->getSize());
init(w, h / d, d, tf, f, t, params, s, CPUBuffer(desc->getData()));
desc->clearData();
} catch (...) {
desc->clearData();
throw exception();
}
}
void TextureRectangle::init(int w, int h, TextureInternalFormat tf, TextureFormat f, PixelType t,
const Parameters ¶ms, const Buffer::Parameters &s, const Buffer &pixels)
{
Texture::init(tf, params);
this->w = w;
this->h = h;
pixels.bind(GL_PIXEL_UNPACK_BUFFER);
bool needToGenerateMipmaps = true;
if (isCompressed() && s.compressedSize() > 0) {
glCompressedTexImage2D(textureTarget, 0, getTextureInternalFormat(internalFormat), w, h, 0, s.compressedSize(), pixels.data(0));
} else {
s.set();
glTexImage2D(textureTarget, 0, getTextureInternalFormat(internalFormat), w, h, 0, getTextureFormat(f), getPixelType(t), pixels.data(0));
s.unset();
GLsizei size = s.compressedSize(); // should work because size is retrieved from file descriptor.
int pixelSize = getFormatSize(f, t);
if (size > w * h * pixelSize) {
// get the other levels from the same buffer
int offset = w * h * pixelSize;
int level = 0;
int wl = w;
int hl = h;
while (wl % 2 == 0 && hl % 2 == 0 && size - offset >= (wl * hl / 4) * pixelSize) {
level += 1;
wl = wl / 2;
hl = hl / 2;
glTexImage2D(textureTarget, level, getTextureInternalFormat(internalFormat), wl, hl, 0, getTextureFormat(f), getPixelType(t), pixels.data(offset));
offset += wl * hl * pixelSize;
needToGenerateMipmaps = false;
}
this->params.lodMax(clamp(params.lodMax(), GLfloat(0.0f), GLfloat(level)));
}
}
pixels.unbind(GL_PIXEL_UNPACK_BUFFER);
if (needToGenerateMipmaps) {
generateMipMap();
}
if (FrameBuffer::getError() != 0) {
throw exception();
}
}
Texture2DArrayResource(ptr<ResourceManager> manager, const string &name, ptr<ResourceDescriptor> desc, const TiXmlElement *e = NULL) :
ResourceTemplate<0, Texture2DArray>(manager, name, desc)
{
e = e == NULL ? desc->descriptor : e;
TextureInternalFormat tf;
TextureFormat f;
PixelType t;
Texture::Parameters params;
Buffer::Parameters s;
int w;
int h;
int l;
try {
checkParameters(desc, e, "name,source,internalformat,format,type,min,mag,wraps,wrapt,minLod,maxLod,compare,borderType,borderr,borderg,borderb,bordera,maxAniso,width,height,depth,layers,");
getIntParameter(desc, e, "width", &w);
getIntParameter(desc, e, "height", &h);
if (e->Attribute("depth") != NULL) {
getIntParameter(desc, e, "depth", &l);
} else {
getIntParameter(desc, e, "layers", &l);
}
if (h % l != 0) {
if (Logger::ERROR_LOGGER != NULL) {
log(Logger::ERROR_LOGGER, desc, e, "Inconsistent 'height' and 'layers' attributes");
}
throw exception();
}
getParameters(desc, e, tf, f, t);
getParameters(desc, e, params);
s.compressedSize(desc->getSize());
init(w, h / l, l, tf, f, t, params, s, CPUBuffer(desc->getData()));
desc->clearData();
} catch (...) {
desc->clearData();
throw exception();
}
}