This is the preferred interface for loading shaders for the TextNode system. More...
Static Public Member Functions | |
static | addShader (Filename const filename, Shader shader) |
Adds the indicated already-loaded shader to the pool. | |
static int | garbageCollect () |
Releases only those shaders in the pool that have a reference count of exactly 1; i.e. | |
static bool | hasShader (Filename const filename) |
Returns true if the shader has ever been loaded, false otherwise. | |
static | listContents (ostream out) |
Lists the contents of the shader pool to the indicated output stream. | |
static Shader const | loadShader (Filename const filename) |
Loads the given filename up into a shader, if it has not already been loaded, and returns the new shader. | |
static | releaseAllShaders () |
Releases all shaders in the pool and restores the pool to the empty state. | |
static | releaseShader (Filename const filename) |
Removes the indicated shader from the pool, indicating it will never be loaded again; the shader may then be freed. | |
static bool | verifyShader (Filename const filename) |
Loads the given filename up into a shader, if it has not already been loaded, and returns true to indicate success, or false to indicate failure. | |
static | write (ostream out) |
Lists the contents of the shader pool to the indicated output stream. |
This is the preferred interface for loading shaders for the TextNode system.
It is similar to ModelPool and TexturePool in that it unifies references to the same filename.
Adds the indicated already-loaded shader to the pool.
The shader will always replace any previously-loaded shader in the pool that had the same filename.
static int garbageCollect | ( | ) | [static] |
Releases only those shaders in the pool that have a reference count of exactly 1; i.e.
only those shaders that are not being used outside of the pool. Returns the number of shaders released.
Returns true if the shader has ever been loaded, false otherwise.
static listContents | ( | ostream | out | ) | [static] |
Lists the contents of the shader pool to the indicated output stream.
static Shader const loadShader | ( | Filename const | filename | ) | [static] |
Loads the given filename up into a shader, if it has not already been loaded, and returns the new shader.
If a shader with the same filename was previously loaded, returns that one instead. If the shader file cannot be found, returns NULL.
static releaseAllShaders | ( | ) | [static] |
Releases all shaders in the pool and restores the pool to the empty state.
static releaseShader | ( | Filename const | filename | ) | [static] |
Removes the indicated shader from the pool, indicating it will never be loaded again; the shader may then be freed.
If this function is never called, a reference count will be maintained on every shader every loaded, and shaders will never be freed.
static bool verifyShader | ( | Filename const | filename | ) | [static] |
Loads the given filename up into a shader, if it has not already been loaded, and returns true to indicate success, or false to indicate failure.
If this returns true, it is guaranteed that a subsequent call to load_shader() with the same shader name will return a valid Shader pointer.