GLuint TextureController::_CreateBlankGLTexture(int32 width, int32 height) {
GLuint tex_id;
glGenTextures(1, &tex_id);
if (VideoManager->CheckGLError()) {
IF_PRINT_WARNING(VIDEO_DEBUG) << "an OpenGL error was detected: " << VideoManager->CreateGLErrorString() << endl;
_DeleteTexture(tex_id);
return INVALID_TEXTURE_ID;
}
_BindTexture(tex_id); // NOTE: this call makes another call to VideoManager->CheckGLError()
// If the binding was successful, initialize the texture with glTexImage2D()
if (VideoManager->GetGLError() == GL_NO_ERROR) {
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
}
if (VideoManager->CheckGLError()) {
PRINT_ERROR << "failed to create new texture. OpenGL reported the following error: " << VideoManager->CreateGLErrorString() << endl;
_DeleteTexture(tex_id);
return INVALID_TEXTURE_ID;
}
// Set linear texture interpolation only if we are at a non-natural resolution
GLenum filtering_type = VideoManager->_ShouldSmooth() ? GL_LINEAR : GL_NEAREST;
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filtering_type);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filtering_type);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
return tex_id;
}
GLuint TextureController::_CreateBlankGLTexture(int32_t width, int32_t height)
{
GLuint tex_id;
glGenTextures(1, &tex_id);
if(VideoManager->CheckGLError()) {
IF_PRINT_WARNING(VIDEO_DEBUG) << "an OpenGL error was detected: " << VideoManager->CreateGLErrorString() << std::endl;
_DeleteTexture(tex_id);
return INVALID_TEXTURE_ID;
}
_BindTexture(tex_id);
// If the binding was successful, initialize the texture with glTexImage2D()
if(VideoManager->GetGLError() == GL_NO_ERROR) {
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
}
if(VideoManager->CheckGLError()) {
PRINT_ERROR << "failed to create new texture. OpenGL reported the following error: " << VideoManager->CreateGLErrorString() << std::endl;
_DeleteTexture(tex_id);
return INVALID_TEXTURE_ID;
}
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
return tex_id;
}
bool TextureController::UnloadTextures() {
bool success = true;
// Save temporary textures to disk, in other words textures which were not
// loaded from a file. This way when we recreate the GL context we will
// be able to load them again.
if (_SaveTempTextures() == false) {
IF_PRINT_WARNING(VIDEO_DEBUG) << "call to _SaveTempTextures() failed" << endl;
success = false;
}
// Unload all texture sheets
vector<TexSheet*>::iterator i = _tex_sheets.begin();
while (i != _tex_sheets.end()) {
if (*i != NULL) {
if ((*i)->Unload() == false) {
IF_PRINT_WARNING(VIDEO_DEBUG) << "a TextureSheet::Unload() call failed" << endl;
success = false;
}
}
else {
IF_PRINT_WARNING(VIDEO_DEBUG) << "a NULL TextureSheet was found in the _tex_sheets container" << endl;
success = false;
}
i++;
}
// Delete the light overlay texture
if (VideoManager->_light_overlay != INVALID_TEXTURE_ID) {
_DeleteTexture(VideoManager->_light_overlay);
VideoManager->_light_overlay = INVALID_TEXTURE_ID;
}
// Clear all font caches
map<string, FontProperties*>::iterator j = TextManager->_font_map.begin();
while (j != TextManager->_font_map.end()) {
FontProperties *fp = j->second;
if (fp->glyph_cache) {
for (map<uint16, FontGlyph*>::iterator k = fp->glyph_cache->begin(); k != fp->glyph_cache->end(); k++) {
_DeleteTexture((*k).second->texture);
delete (*k).second;
}
fp->glyph_cache->clear();
}
j++;
}
return success;
} // bool TextureController::UnloadTextures()
r3dTexture* r3dRenderLayer::LoadTexture( const char* TexFile, D3DFORMAT TexFormat, bool bCheckFormat, int DownScale /*= 1*/, int DownScaleMinDim /*= 1*/, int SystemMem /*= 0*/, int gameResourcePool /*= 0*/ )
{
if(!bInited)
return NULL;
r3dCSHolderWithDeviceQueue csholder( g_ResourceCritSection ) ; (void)csholder ;
assert(TexFile);
char szFileName[ MAX_PATH ];
FixFileName( TexFile, szFileName );
r3dTexture* Tex;
// goes thru all textures and see if we already have with that name
for(Tex = FirstTexture; Tex; Tex = Tex->pNext)
{
if((!bCheckFormat || (Tex->GetD3DFormat() == TexFormat) ) && (Tex->IsLoaded()) && (strcmp(Tex->getFileLoc().FileName, szFileName ) == NULL)) {
Tex->Instances++;
return Tex;
}
}
Tex = _CreateTexture();
if( gameResourcePool == PlayerTexMem )
{
Tex->MarkPlayerTexture() ;
}
if(!Tex->Load(szFileName, TexFormat, DownScale, DownScaleMinDim, SystemMem )) {
_DeleteTexture(Tex);
return NULL;
}
//r3dOutToLog("TEXTURE: LoadTexture %s complete\n", szFileName);
// insert to LList.
_InsertTexture(&FirstTexture, Tex);
Tex->Instances++;
return Tex;
}
void r3dRenderLayer::DeleteTexture(r3dTexture *Tex, int bForceDelete)
{
if(!Tex)
return;
r3dCSHolderWithDeviceQueue csholder( g_ResourceCritSection ) ; (void)csholder ;
// if(!Tex->IsValid())
// return;
// if (!Tex->Tex) return;
Tex->Instances--;
if (bForceDelete) Tex->Instances = 0;
if(Tex->Instances > 0)
return;
if (!bForceDelete)
{
if (Tex->bPersistent)
{
Tex->Instances = 1;
return;
}
}
if(Tex->pNext)
Tex->pNext->pPrev = Tex->pPrev;
if(Tex->pPrev)
Tex->pPrev->pNext = Tex->pNext;
if(Tex == FirstTexture)
FirstTexture = Tex->pNext;
_DeleteTexture(Tex);
}
