Package org.lwjgl.opengl

Class ARBTextureCompression

java.lang.Object

org.lwjgl.opengl.ARBTextureCompression

public class ARBTextureCompression
extends java.lang.Object

Native bindings to the ARB_texture_compression extension.

Compressing texture images can reduce texture memory utilization and improve performance when rendering textured primitives. This extension allows OpenGL applications to use compressed texture images by providing:

1. A framework upon which extensions providing specific compressed image formats can be built.
2. A set of generic compressed internal formats that allow applications to specify that texture images should be stored in compressed form without needing to code for specific compression formats.

An application can define compressed texture images by providing a texture image stored in a specific compressed image format. This extension does not define any specific compressed image formats, but it does provide the mechanisms necessary to enable other extensions that do.

An application can also define compressed texture images by providing an uncompressed texture image but specifying a compressed internal format. In this case, the GL will automatically compress the texture image using the appropriate image format. Compressed internal formats can either be specific (as above) or generic. Generic compressed internal formats are not actual image formats, but are instead mapped into one of the specific compressed formats provided by the GL (or to an uncompressed base internal format if no appropriate compressed format is available). Generic compressed internal formats allow applications to use texture compression without needing to code to any particular compression algorithm. Generic compressed formats allow the use of texture compression across a wide range of platforms with differing compression algorithms and also allow future GL implementations to substitute improved compression methods transparently.

Promoted to core in OpenGL 1.3.

Field Summary

Fields

Modifier and Type	Field and Description
static int	GL_COMPRESSED_ALPHA_ARB GL_COMPRESSED_INTENSITY_ARB GL_COMPRESSED_LUMINANCE_ALPHA_ARB GL_COMPRESSED_LUMINANCE_ARB GL_COMPRESSED_RGB_ARB GL_COMPRESSED_RGBA_ARB Accepted by the internalformat parameter of TexImage1D, TexImage2D, TexImage3D, CopyTexImage1D, and CopyTexImage2D.
static int	GL_COMPRESSED_TEXTURE_FORMATS_ARB GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB Accepted by the value parameter of GetIntegerv, GetBooleanv, GetFloatv, and GetDoublev.
static int	GL_TEXTURE_COMPRESSED_ARB GL_TEXTURE_COMPRESSED_IMAGE_SIZE_ARB Accepted by the value parameter of GetTexLevelParameter.
static int	GL_TEXTURE_COMPRESSION_HINT_ARB Accepted by the target parameter of Hint and the value parameter of GetIntegerv, GetBooleanv, GetFloatv, and GetDoublev.

Method Summary

Modifier and Type	Method and Description
static void	glCompressedTexImage1DARB(int target, int level, int internalformat, int width, java.nio.ByteBuffer data) Specifies a one-dimensional texture image in a compressed format.
static void	glCompressedTexImage1DARB(int target, int level, int internalformat, int width, int border, int imageSize, long data) Specifies a one-dimensional texture image in a compressed format.
static void	glCompressedTexImage2DARB(int target, int level, int internalformat, int width, int height, java.nio.ByteBuffer data) Specifies a two-dimensional texture image in a compressed format.
static void	glCompressedTexImage2DARB(int target, int level, int internalformat, int width, int height, int border, int imageSize, long data) Specifies a two-dimensional texture image in a compressed format.
static void	glCompressedTexImage3DARB(int target, int level, int internalformat, int width, int height, int depth, java.nio.ByteBuffer data) Specifies a three-dimensional texture image in a compressed format.
static void	glCompressedTexImage3DARB(int target, int level, int internalformat, int width, int height, int depth, int border, int imageSize, long data) Specifies a three-dimensional texture image in a compressed format.
static void	glCompressedTexSubImage1DARB(int target, int level, int xoffset, int width, int format, java.nio.ByteBuffer data) Respecifies only a subregion of an existing 1D texel array, with incoming data stored in a specific compressed image format.
static void	glCompressedTexSubImage1DARB(int target, int level, int xoffset, int width, int format, int imageSize, long data) Respecifies only a subregion of an existing 1D texel array, with incoming data stored in a specific compressed image format.
static void	glCompressedTexSubImage2DARB(int target, int level, int xoffset, int yoffset, int width, int height, int format, java.nio.ByteBuffer data) Respecifies only a rectangular subregion of an existing 2D texel array, with incoming data stored in a specific compressed image format.
static void	glCompressedTexSubImage2DARB(int target, int level, int xoffset, int yoffset, int width, int height, int format, int imageSize, long data) Respecifies only a rectangular subregion of an existing 2D texel array, with incoming data stored in a specific compressed image format.
static void	glCompressedTexSubImage3DARB(int target, int level, int xoffset, int yoffset, int zoffset, int width, int height, int depth, int format, java.nio.ByteBuffer data) Respecifies only a cubic subregion of an existing 3D texel array, with incoming data stored in a specific compressed image format.
static void	glCompressedTexSubImage3DARB(int target, int level, int xoffset, int yoffset, int zoffset, int width, int height, int depth, int format, int imageSize, long data) Respecifies only a cubic subregion of an existing 3D texel array, with incoming data stored in a specific compressed image format.
static void	glGetCompressedTexImageARB(int target, int level, java.nio.ByteBuffer pixels) Returns a compressed texture image.
static void	glGetCompressedTexImageARB(int target, int level, long pixels) Returns a compressed texture image.

Methods inherited from class java.lang.Object

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

Field Detail

GL_COMPRESSED_ALPHA_ARB, GL_COMPRESSED_LUMINANCE_ARB, GL_COMPRESSED_LUMINANCE_ALPHA_ARB, GL_COMPRESSED_INTENSITY_ARB, GL_COMPRESSED_RGB_ARB, GL_COMPRESSED_RGBA_ARB

Accepted by the internalformat parameter of TexImage1D, TexImage2D, TexImage3D, CopyTexImage1D, and CopyTexImage2D.

GL_TEXTURE_COMPRESSION_HINT_ARB

Accepted by the target parameter of Hint and the value parameter of GetIntegerv, GetBooleanv, GetFloatv, and GetDoublev.

GL_TEXTURE_COMPRESSED_IMAGE_SIZE_ARB, GL_TEXTURE_COMPRESSED_ARB

Accepted by the value parameter of GetTexLevelParameter.

GL_NUM_COMPRESSED_TEXTURE_FORMATS_ARB, GL_COMPRESSED_TEXTURE_FORMATS_ARB

Accepted by the value parameter of GetIntegerv, GetBooleanv, GetFloatv, and GetDoublev.

Method Detail

glCompressedTexImage3DARB

public static void glCompressedTexImage3DARB(int target,
                                             int level,
                                             int internalformat,
                                             int width,
                                             int height,
                                             int depth,
                                             int border,
                                             int imageSize,
                                             long data)

Specifies a three-dimensional texture image in a compressed format.

Parameters:

target - the target texture. One of:

TEXTURE_3D	TEXTURE_2D_ARRAY	TEXTURE_CUBE_MAP_ARRAY	PROXY_TEXTURE_3D
PROXY_TEXTURE_2D_ARRAY	PROXY_TEXTURE_CUBE_MAP_ARRAY

level - the level-of-detail number. Level 0 is the base image level. Level n is the nth mipmap reduction image.

internalformat - the format of the compressed image data. One of:

COMPRESSED_RED_RGTC1	COMPRESSED_SIGNED_RED_RGTC1
COMPRESSED_RG_RGTC2	COMPRESSED_SIGNED_RG_RGTC2
COMPRESSED_RGBA_BPTC_UNORM	COMPRESSED_SRGB_ALPHA_BPTC_UNORM
COMPRESSED_RGB_BPTC_SIGNED_FLOAT	COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT
COMPRESSED_RGB8_ETC2	COMPRESSED_SRGB8_ETC2
COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2	COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2
COMPRESSED_RGBA8_ETC2_EAC	COMPRESSED_SRGB8_ALPHA8_ETC2_EAC
COMPRESSED_R11_EAC	COMPRESSED_SIGNED_R11_EAC
COMPRESSED_RG11_EAC	COMPRESSED_SIGNED_RG11_EAC
see EXTTextureCompressionS3TC	see EXTTextureCompressionLATC
see ATITextureCompression3DC	see KHRTextureCompressionASTCLDR

width - the width of the texture image

height - the height of the texture image

depth - the depth of the texture image

border - must be 0

imageSize - the number of unsigned bytes of image data starting at the address specified by data

data - a pointer to the compressed image data

glCompressedTexImage3DARB

public static void glCompressedTexImage3DARB(int target,
                                             int level,
                                             int internalformat,
                                             int width,
                                             int height,
                                             int depth,
                                             java.nio.ByteBuffer data)

Specifies a three-dimensional texture image in a compressed format.

Parameters:

target - the target texture. One of:

TEXTURE_3D	TEXTURE_2D_ARRAY	TEXTURE_CUBE_MAP_ARRAY	PROXY_TEXTURE_3D
PROXY_TEXTURE_2D_ARRAY	PROXY_TEXTURE_CUBE_MAP_ARRAY

level - the level-of-detail number. Level 0 is the base image level. Level n is the nth mipmap reduction image.

internalformat - the format of the compressed image data. One of:

COMPRESSED_RED_RGTC1	COMPRESSED_SIGNED_RED_RGTC1
COMPRESSED_RG_RGTC2	COMPRESSED_SIGNED_RG_RGTC2
COMPRESSED_RGBA_BPTC_UNORM	COMPRESSED_SRGB_ALPHA_BPTC_UNORM
COMPRESSED_RGB_BPTC_SIGNED_FLOAT	COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT
COMPRESSED_RGB8_ETC2	COMPRESSED_SRGB8_ETC2
COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2	COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2
COMPRESSED_RGBA8_ETC2_EAC	COMPRESSED_SRGB8_ALPHA8_ETC2_EAC
COMPRESSED_R11_EAC	COMPRESSED_SIGNED_R11_EAC
COMPRESSED_RG11_EAC	COMPRESSED_SIGNED_RG11_EAC
see EXTTextureCompressionS3TC	see EXTTextureCompressionLATC
see ATITextureCompression3DC	see KHRTextureCompressionASTCLDR

width - the width of the texture image

height - the height of the texture image

depth - the depth of the texture image

data - a pointer to the compressed image data

glCompressedTexImage2DARB

public static void glCompressedTexImage2DARB(int target,
                                             int level,
                                             int internalformat,
                                             int width,
                                             int height,
                                             int border,
                                             int imageSize,
                                             long data)

Specifies a two-dimensional texture image in a compressed format.

Parameters:

target - the target texture. One of:

TEXTURE_2D	TEXTURE_1D_ARRAY	TEXTURE_RECTANGLE	TEXTURE_CUBE_MAP
PROXY_TEXTURE_2D	PROXY_TEXTURE_1D_ARRAY	PROXY_TEXTURE_RECTANGLE	PROXY_TEXTURE_CUBE_MAP

level - the level-of-detail number. Level 0 is the base image level. Level n is the nth mipmap reduction image.

internalformat - the format of the compressed image data. One of:

COMPRESSED_RED_RGTC1	COMPRESSED_SIGNED_RED_RGTC1
COMPRESSED_RG_RGTC2	COMPRESSED_SIGNED_RG_RGTC2
COMPRESSED_RGBA_BPTC_UNORM	COMPRESSED_SRGB_ALPHA_BPTC_UNORM
COMPRESSED_RGB_BPTC_SIGNED_FLOAT	COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT
COMPRESSED_RGB8_ETC2	COMPRESSED_SRGB8_ETC2
COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2	COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2
COMPRESSED_RGBA8_ETC2_EAC	COMPRESSED_SRGB8_ALPHA8_ETC2_EAC
COMPRESSED_R11_EAC	COMPRESSED_SIGNED_R11_EAC
COMPRESSED_RG11_EAC	COMPRESSED_SIGNED_RG11_EAC
see EXTTextureCompressionS3TC	see EXTTextureCompressionLATC
see ATITextureCompression3DC	see KHRTextureCompressionASTCLDR

width - the width of the texture image

height - the height of the texture image

border - must be 0

imageSize - the number of unsigned bytes of image data starting at the address specified by data

data - a pointer to the compressed image data

glCompressedTexImage2DARB

public static void glCompressedTexImage2DARB(int target,
                                             int level,
                                             int internalformat,
                                             int width,
                                             int height,
                                             java.nio.ByteBuffer data)

Specifies a two-dimensional texture image in a compressed format.

Parameters:

target - the target texture. One of:

TEXTURE_2D	TEXTURE_1D_ARRAY	TEXTURE_RECTANGLE	TEXTURE_CUBE_MAP
PROXY_TEXTURE_2D	PROXY_TEXTURE_1D_ARRAY	PROXY_TEXTURE_RECTANGLE	PROXY_TEXTURE_CUBE_MAP

level - the level-of-detail number. Level 0 is the base image level. Level n is the nth mipmap reduction image.

internalformat - the format of the compressed image data. One of:

COMPRESSED_RED_RGTC1	COMPRESSED_SIGNED_RED_RGTC1
COMPRESSED_RG_RGTC2	COMPRESSED_SIGNED_RG_RGTC2
COMPRESSED_RGBA_BPTC_UNORM	COMPRESSED_SRGB_ALPHA_BPTC_UNORM
COMPRESSED_RGB_BPTC_SIGNED_FLOAT	COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT
COMPRESSED_RGB8_ETC2	COMPRESSED_SRGB8_ETC2
COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2	COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2
COMPRESSED_RGBA8_ETC2_EAC	COMPRESSED_SRGB8_ALPHA8_ETC2_EAC
COMPRESSED_R11_EAC	COMPRESSED_SIGNED_R11_EAC
COMPRESSED_RG11_EAC	COMPRESSED_SIGNED_RG11_EAC
see EXTTextureCompressionS3TC	see EXTTextureCompressionLATC
see ATITextureCompression3DC	see KHRTextureCompressionASTCLDR

width - the width of the texture image

height - the height of the texture image

data - a pointer to the compressed image data

glCompressedTexImage1DARB

public static void glCompressedTexImage1DARB(int target,
                                             int level,
                                             int internalformat,
                                             int width,
                                             int border,
                                             int imageSize,
                                             long data)

Specifies a one-dimensional texture image in a compressed format.

Parameters:

target - the target texture. One of:

TEXTURE_1D

PROXY_TEXTURE_1D

level - the level-of-detail number. Level 0 is the base image level. Level n is the nth mipmap reduction image.

internalformat - the format of the compressed image data. One of:

COMPRESSED_RED_RGTC1	COMPRESSED_SIGNED_RED_RGTC1
COMPRESSED_RG_RGTC2	COMPRESSED_SIGNED_RG_RGTC2
COMPRESSED_RGBA_BPTC_UNORM	COMPRESSED_SRGB_ALPHA_BPTC_UNORM
COMPRESSED_RGB_BPTC_SIGNED_FLOAT	COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT
COMPRESSED_RGB8_ETC2	COMPRESSED_SRGB8_ETC2
COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2	COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2
COMPRESSED_RGBA8_ETC2_EAC	COMPRESSED_SRGB8_ALPHA8_ETC2_EAC
COMPRESSED_R11_EAC	COMPRESSED_SIGNED_R11_EAC
COMPRESSED_RG11_EAC	COMPRESSED_SIGNED_RG11_EAC
see EXTTextureCompressionS3TC	see EXTTextureCompressionLATC
see ATITextureCompression3DC	see KHRTextureCompressionASTCLDR

width - the width of the texture image

border - must be 0

imageSize - the number of unsigned bytes of image data starting at the address specified by data

data - a pointer to the compressed image data

glCompressedTexImage1DARB

public static void glCompressedTexImage1DARB(int target,
                                             int level,
                                             int internalformat,
                                             int width,
                                             java.nio.ByteBuffer data)

Specifies a one-dimensional texture image in a compressed format.

Parameters:

target - the target texture. One of:

TEXTURE_1D

PROXY_TEXTURE_1D

level - the level-of-detail number. Level 0 is the base image level. Level n is the nth mipmap reduction image.

internalformat - the format of the compressed image data. One of:

COMPRESSED_RED_RGTC1	COMPRESSED_SIGNED_RED_RGTC1
COMPRESSED_RG_RGTC2	COMPRESSED_SIGNED_RG_RGTC2
COMPRESSED_RGBA_BPTC_UNORM	COMPRESSED_SRGB_ALPHA_BPTC_UNORM
COMPRESSED_RGB_BPTC_SIGNED_FLOAT	COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT
COMPRESSED_RGB8_ETC2	COMPRESSED_SRGB8_ETC2
COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2	COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2
COMPRESSED_RGBA8_ETC2_EAC	COMPRESSED_SRGB8_ALPHA8_ETC2_EAC
COMPRESSED_R11_EAC	COMPRESSED_SIGNED_R11_EAC
COMPRESSED_RG11_EAC	COMPRESSED_SIGNED_RG11_EAC
see EXTTextureCompressionS3TC	see EXTTextureCompressionLATC
see ATITextureCompression3DC	see KHRTextureCompressionASTCLDR

width - the width of the texture image

data - a pointer to the compressed image data

glCompressedTexSubImage3DARB

public static void glCompressedTexSubImage3DARB(int target,
                                                int level,
                                                int xoffset,
                                                int yoffset,
                                                int zoffset,
                                                int width,
                                                int height,
                                                int depth,
                                                int format,
                                                int imageSize,
                                                long data)

Respecifies only a cubic subregion of an existing 3D texel array, with incoming data stored in a specific compressed image format.

Parameters:

target - the target texture. One of:

TEXTURE_3D

TEXTURE_2D_ARRAY

TEXTURE_CUBE_MAP_ARRAY

level - the level-of-detail number. Level 0 is the base image level. Level n is the nth mipmap reduction image.

xoffset - a texel offset in the x direction within the texture array

yoffset - a texel offset in the y direction within the texture array

zoffset - a texel offset in the z direction within the texture array

width - the width of the texture subimage

height - the height of the texture subimage

depth - the depth of the texture subimage

format - the format of the compressed image data stored at address data. One of:

COMPRESSED_RED_RGTC1	COMPRESSED_SIGNED_RED_RGTC1
COMPRESSED_RG_RGTC2	COMPRESSED_SIGNED_RG_RGTC2
COMPRESSED_RGBA_BPTC_UNORM	COMPRESSED_SRGB_ALPHA_BPTC_UNORM
COMPRESSED_RGB_BPTC_SIGNED_FLOAT	COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT
COMPRESSED_RGB8_ETC2	COMPRESSED_SRGB8_ETC2
COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2	COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2
COMPRESSED_RGBA8_ETC2_EAC	COMPRESSED_SRGB8_ALPHA8_ETC2_EAC
COMPRESSED_R11_EAC	COMPRESSED_SIGNED_R11_EAC
COMPRESSED_RG11_EAC	COMPRESSED_SIGNED_RG11_EAC
see EXTTextureCompressionS3TC	see EXTTextureCompressionLATC
see ATITextureCompression3DC	see KHRTextureCompressionASTCLDR

imageSize - the number of unsigned bytes of image data starting at the address specified by data

data - a pointer to the compressed image data

glCompressedTexSubImage3DARB

public static void glCompressedTexSubImage3DARB(int target,
                                                int level,
                                                int xoffset,
                                                int yoffset,
                                                int zoffset,
                                                int width,
                                                int height,
                                                int depth,
                                                int format,
                                                java.nio.ByteBuffer data)

Respecifies only a cubic subregion of an existing 3D texel array, with incoming data stored in a specific compressed image format.

Parameters:

target - the target texture. One of:

TEXTURE_3D

TEXTURE_2D_ARRAY

TEXTURE_CUBE_MAP_ARRAY

level - the level-of-detail number. Level 0 is the base image level. Level n is the nth mipmap reduction image.

xoffset - a texel offset in the x direction within the texture array

yoffset - a texel offset in the y direction within the texture array

zoffset - a texel offset in the z direction within the texture array

width - the width of the texture subimage

height - the height of the texture subimage

depth - the depth of the texture subimage

format - the format of the compressed image data stored at address data. One of:

COMPRESSED_RED_RGTC1	COMPRESSED_SIGNED_RED_RGTC1
COMPRESSED_RG_RGTC2	COMPRESSED_SIGNED_RG_RGTC2
COMPRESSED_RGBA_BPTC_UNORM	COMPRESSED_SRGB_ALPHA_BPTC_UNORM
COMPRESSED_RGB_BPTC_SIGNED_FLOAT	COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT
COMPRESSED_RGB8_ETC2	COMPRESSED_SRGB8_ETC2
COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2	COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2
COMPRESSED_RGBA8_ETC2_EAC	COMPRESSED_SRGB8_ALPHA8_ETC2_EAC
COMPRESSED_R11_EAC	COMPRESSED_SIGNED_R11_EAC
COMPRESSED_RG11_EAC	COMPRESSED_SIGNED_RG11_EAC
see EXTTextureCompressionS3TC	see EXTTextureCompressionLATC
see ATITextureCompression3DC	see KHRTextureCompressionASTCLDR

data - a pointer to the compressed image data

glCompressedTexSubImage2DARB

public static void glCompressedTexSubImage2DARB(int target,
                                                int level,
                                                int xoffset,
                                                int yoffset,
                                                int width,
                                                int height,
                                                int format,
                                                int imageSize,
                                                long data)

Respecifies only a rectangular subregion of an existing 2D texel array, with incoming data stored in a specific compressed image format.

Parameters:

target - the target texture. One of:

TEXTURE_2D

TEXTURE_1D_ARRAY

TEXTURE_RECTANGLE

TEXTURE_CUBE_MAP

level - the level-of-detail number. Level 0 is the base image level. Level n is the nth mipmap reduction image.

xoffset - a texel offset in the x direction within the texture array

yoffset - a texel offset in the y direction within the texture array

width - the width of the texture subimage

height - the height of the texture subimage

format - the format of the compressed image data stored at address data. One of:

COMPRESSED_RED_RGTC1	COMPRESSED_SIGNED_RED_RGTC1
COMPRESSED_RG_RGTC2	COMPRESSED_SIGNED_RG_RGTC2
COMPRESSED_RGBA_BPTC_UNORM	COMPRESSED_SRGB_ALPHA_BPTC_UNORM
COMPRESSED_RGB_BPTC_SIGNED_FLOAT	COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT
COMPRESSED_RGB8_ETC2	COMPRESSED_SRGB8_ETC2
COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2	COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2
COMPRESSED_RGBA8_ETC2_EAC	COMPRESSED_SRGB8_ALPHA8_ETC2_EAC
COMPRESSED_R11_EAC	COMPRESSED_SIGNED_R11_EAC
COMPRESSED_RG11_EAC	COMPRESSED_SIGNED_RG11_EAC
see EXTTextureCompressionS3TC	see EXTTextureCompressionLATC
see ATITextureCompression3DC	see KHRTextureCompressionASTCLDR

imageSize - the number of unsigned bytes of image data starting at the address specified by data

data - a pointer to the compressed image data

glCompressedTexSubImage2DARB

public static void glCompressedTexSubImage2DARB(int target,
                                                int level,
                                                int xoffset,
                                                int yoffset,
                                                int width,
                                                int height,
                                                int format,
                                                java.nio.ByteBuffer data)

Respecifies only a rectangular subregion of an existing 2D texel array, with incoming data stored in a specific compressed image format.

Parameters:

target - the target texture. One of:

TEXTURE_2D

TEXTURE_1D_ARRAY

TEXTURE_RECTANGLE

TEXTURE_CUBE_MAP

level - the level-of-detail number. Level 0 is the base image level. Level n is the nth mipmap reduction image.

xoffset - a texel offset in the x direction within the texture array

yoffset - a texel offset in the y direction within the texture array

width - the width of the texture subimage

height - the height of the texture subimage

format - the format of the compressed image data stored at address data. One of:

COMPRESSED_RED_RGTC1	COMPRESSED_SIGNED_RED_RGTC1
COMPRESSED_RG_RGTC2	COMPRESSED_SIGNED_RG_RGTC2
COMPRESSED_RGBA_BPTC_UNORM	COMPRESSED_SRGB_ALPHA_BPTC_UNORM
COMPRESSED_RGB_BPTC_SIGNED_FLOAT	COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT
COMPRESSED_RGB8_ETC2	COMPRESSED_SRGB8_ETC2
COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2	COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2
COMPRESSED_RGBA8_ETC2_EAC	COMPRESSED_SRGB8_ALPHA8_ETC2_EAC
COMPRESSED_R11_EAC	COMPRESSED_SIGNED_R11_EAC
COMPRESSED_RG11_EAC	COMPRESSED_SIGNED_RG11_EAC
see EXTTextureCompressionS3TC	see EXTTextureCompressionLATC
see ATITextureCompression3DC	see KHRTextureCompressionASTCLDR

data - a pointer to the compressed image data

glCompressedTexSubImage1DARB

public static void glCompressedTexSubImage1DARB(int target,
                                                int level,
                                                int xoffset,
                                                int width,
                                                int format,
                                                int imageSize,
                                                long data)

Respecifies only a subregion of an existing 1D texel array, with incoming data stored in a specific compressed image format.

Parameters:

target - the target texture. Must be:

TEXTURE_1D

level - the level-of-detail number. Level 0 is the base image level. Level n is the nth mipmap reduction image.

xoffset - a texel offset in the x direction within the texture array

width - the width of the texture subimage

format - the format of the compressed image data stored at address data. One of:

COMPRESSED_RED_RGTC1	COMPRESSED_SIGNED_RED_RGTC1
COMPRESSED_RG_RGTC2	COMPRESSED_SIGNED_RG_RGTC2
COMPRESSED_RGBA_BPTC_UNORM	COMPRESSED_SRGB_ALPHA_BPTC_UNORM
COMPRESSED_RGB_BPTC_SIGNED_FLOAT	COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT
COMPRESSED_RGB8_ETC2	COMPRESSED_SRGB8_ETC2
COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2	COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2
COMPRESSED_RGBA8_ETC2_EAC	COMPRESSED_SRGB8_ALPHA8_ETC2_EAC
COMPRESSED_R11_EAC	COMPRESSED_SIGNED_R11_EAC
COMPRESSED_RG11_EAC	COMPRESSED_SIGNED_RG11_EAC
see EXTTextureCompressionS3TC	see EXTTextureCompressionLATC
see ATITextureCompression3DC	see KHRTextureCompressionASTCLDR

imageSize - the number of unsigned bytes of image data starting at the address specified by data

data - a pointer to the compressed image data

glCompressedTexSubImage1DARB

public static void glCompressedTexSubImage1DARB(int target,
                                                int level,
                                                int xoffset,
                                                int width,
                                                int format,
                                                java.nio.ByteBuffer data)

Respecifies only a subregion of an existing 1D texel array, with incoming data stored in a specific compressed image format.

Parameters:

target - the target texture. Must be:

TEXTURE_1D

level - the level-of-detail number. Level 0 is the base image level. Level n is the nth mipmap reduction image.

xoffset - a texel offset in the x direction within the texture array

width - the width of the texture subimage

format - the format of the compressed image data stored at address data. One of:

COMPRESSED_RED_RGTC1	COMPRESSED_SIGNED_RED_RGTC1
COMPRESSED_RG_RGTC2	COMPRESSED_SIGNED_RG_RGTC2
COMPRESSED_RGBA_BPTC_UNORM	COMPRESSED_SRGB_ALPHA_BPTC_UNORM
COMPRESSED_RGB_BPTC_SIGNED_FLOAT	COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT
COMPRESSED_RGB8_ETC2	COMPRESSED_SRGB8_ETC2
COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2	COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2
COMPRESSED_RGBA8_ETC2_EAC	COMPRESSED_SRGB8_ALPHA8_ETC2_EAC
COMPRESSED_R11_EAC	COMPRESSED_SIGNED_R11_EAC
COMPRESSED_RG11_EAC	COMPRESSED_SIGNED_RG11_EAC
see EXTTextureCompressionS3TC	see EXTTextureCompressionLATC
see ATITextureCompression3DC	see KHRTextureCompressionASTCLDR

data - a pointer to the compressed image data

glGetCompressedTexImageARB

public static void glGetCompressedTexImageARB(int target,
                                              int level,
                                              java.nio.ByteBuffer pixels)

public static void glGetCompressedTexImageARB(int target,
                                              int level,
                                              long pixels)

Returns a compressed texture image.

Parameters:

target - the target texture. One of:

TEXTURE_1D	TEXTURE_2D	TEXTURE_1D_ARRAY
TEXTURE_CUBE_MAP_POSITIVE_X	TEXTURE_CUBE_MAP_NEGATIVE_X	TEXTURE_CUBE_MAP_POSITIVE_Y
TEXTURE_CUBE_MAP_NEGATIVE_Y	TEXTURE_CUBE_MAP_POSITIVE_Z	TEXTURE_CUBE_MAP_NEGATIVE_Z
TEXTURE_3D	TEXTURE_2D_ARRAY	TEXTURE_CUBE_MAP_ARRAY

level - the level-of-detail number. Level 0 is the base image level. Level n is the nth mipmap reduction image.

pixels - a buffer in which to return the compressed texture image