void ofxTexture::Clear()
{
if(m_Locked) return;
ilBindImage(m_ImageId);
ilClearColour(0.0f, 0.0f, 0.0f, 0.0f);
ilClearImage();
}
ILboolean ilImage::Clear()
{
if (this->Id) {
this->Bind();
return ilClearImage();
}
return IL_FALSE;
}
/* ----------------------------------
texture operation
---------------------------------- */
void ofxTexture::Allocate(unsigned int width, unsigned int height)
{
ilBindImage(m_ImageId);
ilTexImage(width, height, 0, 4, IL_RGBA , IL_UNSIGNED_BYTE, NULL);
ilClearColour(0.0f, 0.0f, 0.0f, 0.0f);
ilClearImage();
m_Width = width;
m_Height = height;
m_Locked = false;
}
void ofxTexture::Fill(ofFloatColor color, ofRectangle dest_rect)
{
if(m_Locked) return;
ILuint dummy = ilGenImage();
ilBindImage(dummy);
ilTexImage(dest_rect.width, dest_rect.height, 0, 4, IL_RGBA , IL_UNSIGNED_BYTE, NULL);
ilClearColour(color.r, color.g, color.b, color.a);
ilClearImage();
ilBindImage(m_ImageId);
ilDisable(IL_BLIT_BLEND);
ilBlit(dummy, dest_rect.x, dest_rect.y, 0, 0, 0, 0, dest_rect.width, dest_rect.height, 1);
ilEnable(IL_BLIT_BLEND);
ilDeleteImage(dummy);
}
bool TextureAtlas::Generate(int textureSize, bool mipmap)
{
// TODO mipmap pas encore 100% parfait...
assert(!mipmap);
if (!IsPowerOfTwo(textureSize))
return false;
// Initialize Devil only once:
static bool alreadyInitialized = false;
if (!alreadyInitialized)
{
ilInit();
iluInit();
alreadyInitialized = true;
}
for (TextureList::iterator it = m_textureList.begin(); it != m_textureList.end(); ++it)
{
ILuint texid = it->second.texId;
if (texid == (ILuint)-1)
{
std::cout << "Loading " << it->first << " (id=" << it->second.texIdx << ")..." << std::endl;
ilGenImages(1, &texid);
ilBindImage(texid);
ilOriginFunc(IL_ORIGIN_LOWER_LEFT);
ilEnable(IL_ORIGIN_SET);
if (!ilLoadImage((const ILstring)it->first.c_str()))
return false;
if (!ilConvertImage(IL_RGBA, IL_UNSIGNED_BYTE))
return false;
iluScale(textureSize, textureSize, 1);
it->second.texId = texid;
}
}
//std::cout << ilGetInteger(IL_IMAGE_BPP) << std::endl;
//std::cout << ilGetInteger(IL_IMAGE_FORMAT) << std::endl;
//std::cout << ilGetInteger(IL_IMAGE_DEPTH) << std::endl;
//std::cout << ilGetInteger(IL_IMAGE_TYPE) << std::endl;
//std::cout << ilGetInteger(IL_IMAGE_WIDTH) << std::endl;
//std::cout << ilGetInteger(IL_IMAGE_HEIGHT) << std::endl;
glGenTextures(1, &m_textureId);
glBindTexture(GL_TEXTURE_2D, m_textureId);
if (mipmap)
{
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
}
else
{
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
}
int level = textureSize;
int oglLevel = 0;
int mipmapSize = textureSize * m_nbTexturePerSide;
while (mipmapSize != 0)
{
ILuint atlasTex;
ilGenImages(1, &atlasTex);
ilBindImage(atlasTex);
ilTexImage(mipmapSize, mipmapSize, 1, 4, IL_RGBA, IL_UNSIGNED_BYTE, 0);
ilClearColour(1, 0, 0, 1);
ilClearImage();
for (TextureList::iterator it = m_textureList.begin(); it != m_textureList.end(); ++it)
{
ILuint tmpImg;
ilGenImages(1, &tmpImg);
ilBindImage(tmpImg);
ilCopyImage(it->second.texId);
iluImageParameter(ILU_FILTER, ILU_NEAREST);
//iluImageParameter(ILU_FILTER, ILU_BILINEAR);
if (level != textureSize)
iluScale(level, level, 1);
char* data = new char[level * level * 4];
ilCopyPixels(0, 0, 0, level, level, 1, IL_RGBA, IL_UNSIGNED_BYTE, data);
int imgIdx = it->second.texIdx;
int x = imgIdx % m_nbTexturePerSide;
int y = m_nbTexturePerSide - 1 - imgIdx / m_nbTexturePerSide;
ilBindImage(atlasTex);
ilSetPixels(x * level, y * level, 0, level, level, 1, IL_RGBA, IL_UNSIGNED_BYTE, data);
//ilOverlayImage(tmpImg, x * level, y * level, 0);
delete[] data;
ilDeleteImages(1, &tmpImg);
}
// TODO
//if(level == textureSize)
//{
//ilEnable(IL_FILE_OVERWRITE);
//ilSaveImage("textureatlas.png");
//}
//std::cout << oglLevel << ":" << level << ":" << mipmapSize << std::endl;
glTexImage2D(GL_TEXTURE_2D, oglLevel++, GL_RGBA, ilGetInteger(IL_IMAGE_WIDTH), ilGetInteger(IL_IMAGE_HEIGHT), 0, GL_RGBA, GL_UNSIGNED_BYTE, ilGetData());
//glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_R, GL_CLAMP_TO_EDGE);
//glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
//glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
//glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_R, GL_CLAMP);
//glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
//glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
CHECK_GL_ERROR();
ilDeleteImages(1, &atlasTex);
if (!mipmap)
break;
level /= 2;
mipmapSize /= 2;
}
m_isValid = true;
return true;
}
void ilFClearImage_(int *RetVal)
{
*RetVal = ilClearImage();
return;
}
