wolftousen
Joined: 28 Jan 2008
Posts: 10
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 Posted: Mon Oct 12, 2009 4:22 pm Post subject: Memory leaks with SDL resizing and unloading textures |
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Ok, so i've spent the better part of my day tracking down some memory leaks in my app. I though initially they were caused by Tangos File classes, but finally ruled that out.
Here are the memory leaks:
DerelictSDL:
When i go to resize a window, my mem usage increases by ~150K in the task manager (yeah i know it's not the best...).
When the app takes input i get random increases of ~8k.
//resize code
| Code: | void InitializeSDL()
{
SDL_SetVideoMode(width, height, 24, SDL_OPENGL | SDL_DOUBLEBUF | SDL_RESIZABLE);
glViewport(0, 0, width, height);
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glClearDepth(1.0);
glPushColor(255, 255, 255);
glDepthFunc(GL_LEQUAL);
glEnable(GL_TEXTURE_2D);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glShadeModel(GL_SMOOTH);
// switch to the projection mode matrix
glMatrixMode(GL_PROJECTION);
// load the identity matrix for projection
glLoadIdentity();
// setup a perspective projection matrix
gluOrtho2D(0, width, 0, height);
//gluPerspective(90.0f, cast(float)(400 / 300), 0.1f, 100.0f);
// switch back to the modelview transformation matrix
glMatrixMode(GL_MODELVIEW);
// load the identity matrix for modelview
glLoadIdentity();
glLineWidth(1);
} |
DerelictOpenGL:
When I load textures with glTexImage2D, it should be putting that data on the gfx card memory correct? It is registering in the task manager as my current mem usage goes up ~size of the texture data and doesn't go back down after I delete it on my end.
Every time i reloaded textures it goes farther up in the same increment. | Code: | oImage textureData;
glEnable(GL_TEXTURE_2D);
foreach(texture; m_loadedTextures)
{
textureData = oImage.LoadImage(texture.GetFile());
uint[] dims = textureData.GetDimensions();
//if the image width and height are not a power of 2, scale the image to the closest powers of 2...
glDeleteTextures(1, texture.GetID());
glBindTexture(GL_TEXTURE_2D, *(texture.GetID()));
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
if(dims[2] == 3)
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, dims[0], dims[1], 0, GL_RGB, GL_UNSIGNED_BYTE, cast(void*)textureData.GetPixelData());
else
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, dims[0], dims[1], 0, GL_RGBA, GL_UNSIGNED_BYTE, cast(void*)textureData.GetPixelData());
delete textureData;
} |
I'm on Win XP, using the latest Tango and Derelict packages, can anyone duplicate or know of this issue?
Thanks in advance. |
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