bool Image32::load_pixels_from_file_32(const char *path)
{
// free texture
free_texture();
// generate image
ILuint image_id = 0;
ilGenImages(1, &image_id);
ilBindImage(image_id);
//Load image
bool loaded_image = ilLoadImage( path );
if (loaded_image) {
// convert image
bool converted = ilConvertImage(IL_RGBA, IL_UNSIGNED_BYTE);
if (converted == IL_TRUE)
{
// init dimensions
GLuint image_width = (GLuint)ilGetInteger(IL_IMAGE_WIDTH);
GLuint image_height = (GLuint)ilGetInteger(IL_IMAGE_HEIGHT);
GLuint texture_width = power_of_two(image_width);
GLuint texture_height = power_of_two(image_height);
if (image_width != texture_width || image_height != texture_height)
{
// place image in upper left
iluImageParameter(ILU_PLACEMENT, ILU_UPPER_LEFT);
// resize image
iluEnlargeCanvas((int)texture_width, (int)texture_height, 1);
}
// allocate memory for texture
GLuint size = texture_height*texture_width;
_pixels_32 = new GLuint[size];
_image_width = image_width;
_image_height = image_height;
_texture_width = texture_width;
_texture_height = texture_height;
memcpy(_pixels_32, ilGetData(), size*4);
}
ilDeleteImages(1,&image_id);
} else {
std::cout << "unable to load pixels from file: " << path << std::endl;
return false;
}
_pixel_format = GL_RGBA;
return true;
}
bool LTexture::loadTextureFromFile32( std::string path )
{
//Texture loading success
bool textureLoaded = false;
//Generate and set current image ID
ILuint imgID = 0;
ilGenImages( 1, &imgID );
ilBindImage( imgID );
//Load image
ILboolean success = ilLoadImage( path.c_str() );
//Image loaded successfully
if( success == IL_TRUE )
{
//Convert image to RGBA
success = ilConvertImage( IL_RGBA, IL_UNSIGNED_BYTE );
if( success == IL_TRUE )
{
//Initialize dimensions
GLuint imgWidth = (GLuint)ilGetInteger( IL_IMAGE_WIDTH );
GLuint imgHeight = (GLuint)ilGetInteger( IL_IMAGE_HEIGHT );
//Calculate required texture dimensions
GLuint texWidth = powerOfTwo( imgWidth );
GLuint texHeight = powerOfTwo( imgHeight );
//Texture is the wrong size
if( imgWidth != texWidth || imgHeight != texHeight )
{
//Place image at upper left
iluImageParameter( ILU_PLACEMENT, ILU_UPPER_LEFT );
//Resize image
iluEnlargeCanvas( (int)texWidth, (int)texHeight, 1 );
}
//Create texture from file pixels
textureLoaded = loadTextureFromPixels32( (GLuint*)ilGetData(), imgWidth, imgHeight, texWidth, texHeight );
}
//Delete file from memory
ilDeleteImages( 1, &imgID );
//Set pixel format
mPixelFormat = GL_RGBA;
}
//Report error
if( !textureLoaded )
{
printf( "Unable to load %s\n", path.c_str() );
}
return textureLoaded;
}
bool Image32::load_texture_from_file_32(const char *path)
{
// generate image
ILuint image_id = 0;
ilGenImages(1, &image_id);
ilBindImage(image_id);
//Load image
bool got = ilLoadImage( path );
if (got == IL_TRUE)
{
// convert image
bool converted = ilConvertImage(IL_RGBA, IL_UNSIGNED_BYTE);
if (converted == IL_TRUE)
{
// init dimensions
GLuint image_width = (GLuint)ilGetInteger(IL_IMAGE_WIDTH);
GLuint image_height = (GLuint)ilGetInteger(IL_IMAGE_HEIGHT);
GLuint texture_width = power_of_two(image_width);
GLuint texture_height = power_of_two(image_height);
if (image_width != texture_width || image_height != texture_height)
{
// place image in upper left
iluImageParameter(ILU_PLACEMENT, ILU_UPPER_LEFT);
// resize image
iluEnlargeCanvas((int)texture_width, (int)texture_height, 1);
}
bool loaded = load_texture_from_pixels_32((GLuint*)ilGetData(), image_width, image_height, texture_width, texture_height);
if (!loaded) {
std::cout << "unable to load image: " << path << std::endl;
return false;
}
}
ilDeleteImages(1,&image_id);
}
_pixel_format = GL_RGBA;
return true;
}
std::tr1::shared_ptr<ATexture> ATextureLoader::LoadFile(const std::string& path)
{
// try to retrieve the texture from the cache, if it exists
std::tr1::shared_ptr<ATexture> texture_sp = ATextureCache::GetInstance()->Get(path);
if(texture_sp != nullptr){
return texture_sp;
}
unsigned int width, contentWidth, height, contentHeight;
ILuint imageID = ilGenImage();
ilBindImage(imageID);
if(!ilLoadImage(path.c_str())){
std::string error = "Fail to load file: " + path;
throw std::exception(error.c_str());
return nullptr;
}
// The content in
width = contentWidth = ilGetInteger(IL_IMAGE_WIDTH);
height = contentHeight = ilGetInteger(IL_IMAGE_HEIGHT);
ILint bpp = ilGetInteger(IL_IMAGE_BYTES_PER_PIXEL);
// Actual texture size padded with extra pixels, ensure width and height are power of two.
if(!isPowerOfTwo(contentWidth))
width = nextPowerOfTwo(contentWidth);
if(!isPowerOfTwo(contentHeight))
height = nextPowerOfTwo(contentHeight);
// default background colour will be solid black
ilClearColour(0.0f, 0.0f, 0.0f, 1.0f);
// TODO: there is still some confusion here.......
// flip texture problem is mentioned here: http://www.gamedev.net/topic/308200-devil-textures-upside-down/
// Together with the ilOriginFunc in the graphics_engine.h initialize function, and followed by iLuFlipImage().
// They ensure the image data will be correctly loaded and place on top left corner. And the data will be always stored from top left corner.
iluImageParameter(ILU_PLACEMENT, ILU_UPPER_LEFT);
// bitmap image seems like storing data upside down, its origin is on the lower left.
// jpg, png data seems like using upper left as the origin.
if (ilGetInteger(IL_IMAGE_ORIGIN) == IL_ORIGIN_UPPER_LEFT){
// This is for fixing the loaded image upside down in OpenGL...
iluFlipImage();
}
// set the canvas size.
iluEnlargeCanvas(width, height, bpp);
// Allocate the memory for the image data.
GLubyte* buffer = new GLubyte[width * height * bpp];
// Copy the loaded image data into the texture data depending on how many bytes per pixel
if(bpp == 4){
ilCopyPixels(0, 0, 0, width, height, 1, IL_RGBA, GL_UNSIGNED_BYTE, buffer);
}
else if(bpp == 3){
ilCopyPixels(0, 0, 0, width, height, 1, IL_RGB, GL_UNSIGNED_BYTE, buffer);
}
else{
std::string error = "Loading process, byte per pixel error, bpp: "+bpp;
throw std::exception(error.c_str());
}
// Delete the devIL image data
ilDeleteImage(imageID);
// create a brand new texture to use
// put the texture into the texture cache.
texture_sp = ATextureCache::GetInstance()->Cache(path, new ATexture(buffer, contentWidth, contentHeight, width, height, GL_RGBA, bpp));
// after texture is created, the buffer data will be uploaded to OpenGL, so no long needed.
delete[] buffer;
// This is a pointer to the loaded image data
return texture_sp;
}
bool LTexture::loadPixelsFromFile32( std::string path )
{
//Free texture data if needed
freeTexture();
//Texture loading success
bool pixelsLoaded = false;
//Generate and set current image ID
ILuint imgID = 0;
ilGenImages( 1, &imgID );
ilBindImage( imgID );
//Load image
ILboolean success = ilLoadImage( path.c_str() );
//Image loaded successfully
if( success == IL_TRUE )
{
//Convert image to RGBA
success = ilConvertImage( IL_RGBA, IL_UNSIGNED_BYTE );
if( success == IL_TRUE )
{
//Initialize dimensions
GLuint imgWidth = (GLuint)ilGetInteger( IL_IMAGE_WIDTH );
GLuint imgHeight = (GLuint)ilGetInteger( IL_IMAGE_HEIGHT );
//Calculate required texture dimensions
GLuint texWidth = powerOfTwo( imgWidth );
GLuint texHeight = powerOfTwo( imgHeight );
//Texture is the wrong size
if( imgWidth != texWidth || imgHeight != texHeight )
{
//Place image at upper left
iluImageParameter( ILU_PLACEMENT, ILU_UPPER_LEFT );
//Resize image
iluEnlargeCanvas( (int)texWidth, (int)texHeight, 1 );
}
//Allocate memory for texture data
GLuint size = texWidth * texHeight;
mPixels32 = new GLuint[ size ];
//Get image dimensions
mImageWidth = imgWidth;
mImageHeight = imgHeight;
mTextureWidth = texWidth;
mTextureHeight = texHeight;
//Copy pixels
memcpy( mPixels32, ilGetData(), size * 4 );
pixelsLoaded = true;
}
//Delete file from memory
ilDeleteImages( 1, &imgID );
//Set pixel format
mPixelFormat = GL_RGBA;
}
//Report error
if( !pixelsLoaded )
{
printf( "Unable to load %s\n", path.c_str() );
}
return pixelsLoaded;
}
bool CCLUDrawBase::SaveScreen2BMP(const char *pcFilename)
{
ILuint uImgID;
int iWidth, iHeight;
unsigned char *pImage;
cStr csFilename, csBaseName, csExt;
int iExtPos;
bool bEPSFile = false;
bool bJPS = false;
csBaseName = csFilename = pcFilename;
iExtPos = ('.' < csBaseName);
csExt = csBaseName.Last(csFilename.Len() - iExtPos, 1);
csBaseName |= -1;
if (csExt == "eps")
{
csFilename = csBaseName + ".tmp";
bEPSFile = true;
}
else if (csExt == "jps")
{
csFilename = csBaseName + ".jpg";
bEPSFile = true;
bJPS = true;
}
iWidth = m_iSizeX;
iHeight = m_iSizeY;
ilGenImages(1, &uImgID);
ilBindImage(uImgID);
if (iluEnlargeCanvas(iWidth, iHeight, 1) == IL_FALSE)
{
ilDeleteImages(1, &uImgID);
return false;
}
ilConvertImage(IL_RGB, IL_UNSIGNED_BYTE);
pImage = (unsigned char *) ilGetData();
// Get Pixels
glPixelStorei(GL_PACK_ALIGNMENT,1);
glReadBuffer(GL_FRONT_LEFT);
glReadPixels( 0, 0, iWidth, iHeight, GL_RGB, GL_UNSIGNED_BYTE, pImage );
remove(csFilename.Str());
if (bEPSFile)
{
if (ilSave(IL_JPG, (ILstring) csFilename.Str()) == IL_FALSE)
{
ilDeleteImages(1, &uImgID);
return false;
}
}
else
{
if (ilSaveImage((ILstring) csFilename.Str()) == IL_FALSE)
{
ilDeleteImages(1, &uImgID);
return false;
}
}
ilDeleteImages(1, &uImgID);
if (bEPSFile)
{
csBaseName += ".eps";
if (!ConvertJPEGtoPS(csFilename.Str(), csBaseName.Str()))
return false;
if (!bJPS)
remove(csFilename.Str());
}
return true;
}
//Load----------------------------------------------------------------------
bool TextureItem::Load( GLuint minFilter, GLuint maxFilter, bool forceMipmap, bool resizeIfNeeded )
{
/** NOTE: This is a test of using an archive file. This will need to
be modified to allow direct file access, or archived file access.
*/
ArchiveFile* file = ArchiveManager::GetSingleton().CreateArchiveFile( mImageFileName );
if ( file )
{
UInt32 fileSize = file->Length();
unsigned char* buf = new unsigned char [ fileSize ];
if ( !buf )
{
delete file;
return false;
}
file->Read( buf, fileSize );
// Load the texture:
//****
ilInit();
iluInit();
// Make sure the DevIL version is valid:
if ( ilGetInteger( IL_VERSION_NUM ) < IL_VERSION || iluGetInteger( ILU_VERSION_NUM ) < ILU_VERSION )
{
// Invalid version...
delete file;
delete buf;
return false;
}
// Get the decompressed data
ILuint imageID;
ilGenImages( 1, &imageID );
ilBindImage( imageID );
//if ( ilLoadImage( const_cast< char* >( mImageFileName.c_str() ) ) )
if ( ilLoadL( IL_TYPE_UNKNOWN, buf, fileSize ) )
{
// Convert the image to unsigned bytes:
ilConvertImage( IL_RGBA, IL_UNSIGNED_BYTE );
// Generate the GL texture
glGenTextures( 1, &mTextureID );
glBindTexture( GL_TEXTURE_2D, mTextureID );
mWidth = ilGetInteger( IL_IMAGE_WIDTH );
mHeight = ilGetInteger( IL_IMAGE_HEIGHT );
mOriginalWidth = mWidth;
mOriginalHeight = mHeight;
// OpenGL will work better with textures that have dimensions
// that are a power of 2. If doing a scrolling tile map, then
// this is pretty much a necessity. However, there are times
// when using a mipmap instead is perfectly fine (ie, when NOT
// doing tiles, or in cases where we might be running out of
// video memory...
if ( resizeIfNeeded && !forceMipmap )
{
UInt32 newWidth = mWidth, newHeight = mHeight;
if ( !Math::IsPowerOf2( mWidth ) )
{
// Find the next power of 2:
newWidth = Math::FindNextPowerOf2( mWidth );
}
if ( !Math::IsPowerOf2( mHeight ) )
{
// Find the next power of 2:
newHeight = Math::FindNextPowerOf2( mHeight );
}
if ( newWidth != mWidth || newHeight != mHeight )
{
// Resize the canvas:
ilClearColor( 0, 0, 0, 0 );
iluImageParameter( ILU_PLACEMENT, ILU_UPPER_LEFT );
iluEnlargeCanvas( newWidth, newHeight, ilGetInteger( IL_IMAGE_DEPTH ) );
mWidth = ilGetInteger( IL_IMAGE_WIDTH );
mHeight = ilGetInteger( IL_IMAGE_HEIGHT );
}
}
// If forcing mipmap generation, or if the size is not a power of 2,
// generate as mipmaps
if ( forceMipmap || !Math::IsPowerOf2( mWidth ) || !Math::IsPowerOf2( mHeight ) )
{
gluBuild2DMipmaps( GL_TEXTURE_2D,
ilGetInteger( IL_IMAGE_BPP ),
mWidth,
mHeight,
ilGetInteger( IL_IMAGE_FORMAT ),
GL_UNSIGNED_BYTE,
ilGetData() );
}
else
{
glTexImage2D( GL_TEXTURE_2D,
0,
ilGetInteger( IL_IMAGE_BPP ),
mWidth,
mHeight,
0,
ilGetInteger( IL_IMAGE_FORMAT ),
GL_UNSIGNED_BYTE,
ilGetData() );
}
// Set the minification and magnification filters
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, minFilter );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, maxFilter );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP );
mIsLoaded = true;
}
else
{
ILenum error;
error = ilGetError();
//std::string errString = iluErrorString( error );
}
ilDeleteImages( 1, &imageID );
//***
// Free memory:
delete buf;
delete file;
}
else
return false;
return true;
}
bool Texture::CacheIn()
{
fbyte *im;
if (Bad())
{
return false;
}
if (!IsCachedIn())
{
ILuint image_id;
ILint format;
ilGenImages(1, &image_id);
ilBindImage(image_id);
if(!ilLoadImage((ILstring)m_impl->m_filename.c_str()))
{
ilDeleteImages(1, &image_id);
m_impl->m_bad = true;
cerr << "Failed to load texture file " << m_impl->m_filename << endl;
return false;
}
format=ilGetInteger(IL_DXTC_DATA_FORMAT);
switch(format)
{
case IL_DXT_NO_COMP:
break;
case IL_DXT1:
m_impl->m_dxt_format = TextureImpl::e_dxt1;
break;
case IL_DXT2:
m_impl->m_dxt_format = TextureImpl::e_dxt2;
break;
case IL_DXT3:
m_impl->m_dxt_format = TextureImpl::e_dxt3;
break;
case IL_DXT4:
m_impl->m_dxt_format = TextureImpl::e_dxt4;
break;
case IL_DXT5:
m_impl->m_dxt_format = TextureImpl::e_dxt5;
break;
}
if(m_impl->m_dxt_format!=TextureImpl::e_dxt_none)
{
m_impl->m_width=ilGetInteger(IL_IMAGE_WIDTH);
m_impl->m_height=ilGetInteger(IL_IMAGE_HEIGHT);
m_impl->m_widthP2 = m_impl->m_width;
m_impl->m_heightP2 = m_impl->m_height;
m_impl->m_type = Texture::TYPE_RGBA;
ILint s;
char *data;
s = ilGetDXTCData(NULL,0,format);
m_impl->m_dxt_size = s;
im = new fbyte[s];
ilGetDXTCData(im,s,format);
BindTextureToOpenGL(m_impl, im);
delete [] im;
}
else
{
format=ilGetInteger(IL_IMAGE_FORMAT);
if(format == IL_RGBA || format == IL_BGRA || format == IL_LUMINANCE_ALPHA || m_impl->m_autoGenAlphaMask)
{
ilConvertImage(IL_RGBA,IL_UNSIGNED_BYTE);
m_impl->m_type = Texture::TYPE_RGBA;
}
else
{
ilConvertImage(IL_RGB,IL_UNSIGNED_BYTE);
m_impl->m_type = Texture::TYPE_RGB;
}
m_impl->m_width=ilGetInteger(IL_IMAGE_WIDTH);
m_impl->m_height=ilGetInteger(IL_IMAGE_HEIGHT);
m_impl->m_widthP2 = m_impl->m_width;
m_impl->m_heightP2 = m_impl->m_height;
if((m_impl->m_width & (m_impl->m_width - 1)) != 0 ||
(m_impl->m_height & (m_impl->m_height - 1)) != 0)
{
for(fdword i=2;i<=c_max_texture_size_power;i++)
{
if((m_impl->m_width<<1) > (1UL<<i))
{
m_impl->m_widthP2 = (1UL<<i);
}
if((m_impl->m_height<<1) > (1UL<<i))
{
m_impl->m_heightP2 = (1UL<<i);
}
}
cerr << m_impl->m_filename << " has invalid texture size: " <<
m_impl->m_width << "x" << m_impl->m_height <<
" resizing to " <<
m_impl->m_widthP2 << "x" << m_impl->m_heightP2 << endl;
cerr << " Wasted space due to texture resize: " <<
(((m_impl->m_widthP2 * m_impl->m_heightP2) -
(m_impl->m_width * m_impl->m_height)) /
float(m_impl->m_widthP2 * m_impl->m_heightP2)) * 100.0f <<
"%" << endl;
iluImageParameter(ILU_PLACEMENT, ILU_UPPER_LEFT);
ilClearColour(1.0f,0.2f,0.8f,1.0f);
if(!iluEnlargeCanvas(m_impl->m_widthP2, m_impl->m_heightP2, ilGetInteger(IL_IMAGE_DEPTH)))
{
ilDeleteImages(1, &image_id);
m_impl->m_bad = true;
cerr << "Resize of texture canvas failed" << endl;
return false;
}
}
im = ilGetData();
if(m_impl->m_autoGenAlphaMask)
{
Colour c;
fdword i,j;
for(j=0;j<m_impl->m_height;j++)
{
for(i=0;i<m_impl->m_width;i++)
{
c.FromInteger(((fdword *)im)[j*m_impl->m_widthP2+i],
c_rgba_red_mask, c_rgba_red_shift,
c_rgba_green_mask, c_rgba_green_shift,
c_rgba_blue_mask, c_rgba_blue_shift,
c_rgba_alpha_mask, c_rgba_alpha_shift);
GF1::Colour cd(c - m_impl->m_autoGenAlphaMaskColour);
if(m_impl->m_autoGenAlphaMaskFade && m_impl->m_autoGenAlphaMaskTolerance > 0)
{
c.a = cd.Length() / m_impl->m_autoGenAlphaMaskTolerance;
}
else
{
if(cd.LengthSquared() <= m_impl->m_autoGenAlphaMaskTolerance * m_impl->m_autoGenAlphaMaskTolerance)
{
c.a=0.0f;
}
else
{
c.a=1.0f;
}
}
((fdword *)im)[j*m_impl->m_widthP2+i] = c.ToInteger(255,0,255,8,255,16,255,24);
}
}
}
BindTextureToOpenGL(m_impl, im);
}
ilDeleteImages(1, &image_id);
}
return true;
}
