Class NVQueryResource
- java.lang.Object
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- org.lwjgl.opengl.NVQueryResource
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public class NVQueryResource extends java.lang.Object
Native bindings to the NV_query_resource extension.OpenGL implementations manage the residence of textures, shaders, and other graphical objects in GPU accessible memory (whether in on-board video memory or addressable system memory is implementation dependent). With more insight into OpenGL's memory usage 1) applications could make educated decisions on better utilizing the limited GPU resources, 2) users could better optimize their workflow when working with multiple tools, and 3) administrators can make better decisions regarding resource allocation and system configurations.
The purpose of this extension is to return a more detailed breakdown of memory usage in terms of the OpenGL objects residing in memory (textures, render buffers, buffer objects, system reserved objects, ...). This extension differs from GL_NVX_gpu_memory_info in that this extension returns detailed memory usage at the object level for video memory while the other extension only reports total vidmem usage.
For the purposes of this specification the term vidmem refers to video memory resident on the graphics card that is directly accessible to the GPU at the highest performance level.
Requires
OpenGL 2.0
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Field Summary
Fields Modifier and Type Field Description static int
GL_QUERY_RESOURCE_BUFFEROBJECT_NV
GL_QUERY_RESOURCE_MEMTYPE_VIDMEM_NV
GL_QUERY_RESOURCE_RENDERBUFFER_NV
GL_QUERY_RESOURCE_SYS_RESERVED_NV
GL_QUERY_RESOURCE_TEXTURE_NVNew enums defined.static int
GL_QUERY_RESOURCE_TYPE_VIDMEM_ALLOC_NV
Accepted by thequeryType
parameter ofQueryResourceNV
.
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static int
glQueryResourceNV(int queryType, int pname, int[] buffer)
Array version of:QueryResourceNV
static int
glQueryResourceNV(int queryType, int pname, java.nio.IntBuffer buffer)
static int
nglQueryResourceNV(int queryType, int pname, int bufSize, long buffer)
Unsafe version of:QueryResourceNV
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Field Detail
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GL_QUERY_RESOURCE_TYPE_VIDMEM_ALLOC_NV
Accepted by thequeryType
parameter ofQueryResourceNV
.
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Method Detail
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nglQueryResourceNV
public static int nglQueryResourceNV(int queryType, int pname, int bufSize, long buffer)
Unsafe version of:QueryResourceNV
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glQueryResourceNV
public static int glQueryResourceNV(int queryType, int pname, java.nio.IntBuffer buffer)
- Parameters:
queryType
- must be:QUERY_RESOURCE_TYPE_VIDMEM_ALLOC_NV
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glQueryResourceNV
public static int glQueryResourceNV(int queryType, int pname, int[] buffer)
Array version of:QueryResourceNV
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