Package org.lwjgl.opengl

Class AMDSparseTexture

java.lang.Object

org.lwjgl.opengl.AMDSparseTexture

public class AMDSparseTexture
extends java.lang.Object

Native bindings to the AMD_sparse_texture extension.

Recent advances in application complexity and a desire for higher resolutions have pushed texture sizes up considerably. Often, the amount of physical memory available to a graphics processor is a limiting factor in the performance of texture-heavy applications. Once the available physical memory is exhausted, paging may occur bringing performance down considerably - or worse, the application may fail. Nevertheless, the amount of address space available to the graphics processor has increased to the point where many gigabytes - or even terabytes of address space may be usable even though that amount of physical memory is not present.

This extension allows the separation of the graphics processor's address space (reservation) from the requirement that all textures must be physically backed (commitment). This exposes a limited form of virtualization for textures. Use cases include sparse (or partially resident) textures, texture paging, on-demand and delayed loading of texture assets and application controlled level of detail.

Requires OpenGL 2.0 or ARB_fragment_shader.

Field Summary

Fields

Modifier and Type	Field and Description
static int	GL_MAX_SPARSE_3D_TEXTURE_SIZE_AMD GL_MAX_SPARSE_ARRAY_TEXTURE_LAYERS GL_MAX_SPARSE_TEXTURE_SIZE_AMD Accepted by the pname parameter to GetIntegerv, GetFloatv, GetDoublev, GetInteger64v, and GetBooleanv.
static int	GL_MIN_LOD_WARNING_AMD Accepted by the pname parameter of TexParameter{if}{v} and GetTexParameter{if}v.
static int	GL_MIN_SPARSE_LEVEL_AMD Accepted by the pname parameter of GetTexParameter{if}v.
static int	GL_TEXTURE_STORAGE_SPARSE_BIT_AMD Accepted by the flags parameter to TexStorageSparseAMD and TextureStorageSparseAMD.
static int	GL_VIRTUAL_PAGE_SIZE_X_AMD GL_VIRTUAL_PAGE_SIZE_Y_AMD GL_VIRTUAL_PAGE_SIZE_Z_AMD Accepted by the pname parameter to GetInternalformativ.

Method Summary

Modifier and Type	Method and Description
static void	glTexStorageSparseAMD(int target, int internalFormat, int width, int height, int depth, int layers, int flags)
static void	glTextureStorageSparseAMD(int texture, int target, int internalFormat, int width, int height, int depth, int layers, int flags)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

GL_TEXTURE_STORAGE_SPARSE_BIT_AMD

Accepted by the flags parameter to TexStorageSparseAMD and TextureStorageSparseAMD.

GL_VIRTUAL_PAGE_SIZE_X_AMD, GL_VIRTUAL_PAGE_SIZE_Y_AMD, GL_VIRTUAL_PAGE_SIZE_Z_AMD

Accepted by the pname parameter to GetInternalformativ.

GL_MAX_SPARSE_TEXTURE_SIZE_AMD, GL_MAX_SPARSE_3D_TEXTURE_SIZE_AMD, GL_MAX_SPARSE_ARRAY_TEXTURE_LAYERS

Accepted by the pname parameter to GetIntegerv, GetFloatv, GetDoublev, GetInteger64v, and GetBooleanv.

GL_MIN_SPARSE_LEVEL_AMD

Accepted by the pname parameter of GetTexParameter{if}v.

GL_MIN_LOD_WARNING_AMD

Accepted by the pname parameter of TexParameter{if}{v} and GetTexParameter{if}v.

Method Detail

glTexStorageSparseAMD

public static void glTexStorageSparseAMD(int target,
                                         int internalFormat,
                                         int width,
                                         int height,
                                         int depth,
                                         int layers,
                                         int flags)

glTextureStorageSparseAMD

public static void glTextureStorageSparseAMD(int texture,
                                             int target,
                                             int internalFormat,
                                             int width,
                                             int height,
                                             int depth,
                                             int layers,
                                             int flags)