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Name
ANGLE_copy_texture_3d
Name Strings
GL_ANGLE_copy_texture_3d
Contributors
Brandon Jones, Intel
Contacts
Brandon Jones, Intel (brandon1.jones 'at' intel 'dot' com)
Status
Implemented.
Version
Version 1, 2018-8-8
Dependencies
OpenGL ES 3.0 required.
Overview
This extension adds 3D texture support to the functionality
provided by the CHROMIUM_copy_texture extension. Two new
functions are exported, glCopyTexture3DANGLE and
glCopySubTexture3DANGLE that perform the same copy operations as
glCopyTextureCHROMIUM and glCopySubTextureCHROMIUM, respectively,
on GL_TEXTURE_3D and GL_TEXTURE_2D_ARRAY bound textures.
New Procedures and Functions
void CopyTexture3DANGLE(uint sourceId,
int sourceLevel,
enum destTarget,
uint destId,
int destLevel,
int internalFormat,
enum destType,
boolean unpackFlipY,
boolean unpackPremultiplyAlpha,
boolean unpackUnmultiplyAlpha)
void CopySubTexture3DANGLE(uint sourceId,
int sourceLevel,
enum destTarget,
uint destId,
int destLevel,
int xoffset,
int yoffset,
int zoffset,
int x,
int y,
int z,
sizei width,
sizei height,
sizei depth,
boolean unpackFlipY,
boolean unpackPremultiplyAlpha,
boolean unpackUnmultiplyAlpha)
Additions to the OpenGL ES 3.0 Specification
The command
CopyTexture3DANGLE
All CopyTexture3DANGLE behavior is the same as
CopyTextureCHROMIUM unless otherwise defined below.
When source texture doesn't contain a superset of the component
required by <internalFormat>, fill the components by the
following rules.
source format color components
----------------------------------------
RED (R, 0, 0, 1)
RED_INTEGER (R, 0, 0, 1)
RG (R, G, 0, 1)
RG_INTEGER (R, G, 0, 1)
RGB (R, G, B, 1)
RGB_INTEGER (R, G, B, 1)
RGBA (R, G, B, A)
RGBA_INTEGER (R, G, B, A)
LUMINANCE_ALPHA (L, L, L, A)
LUMINANCE (L, L, L, 1)
ALPHA (0, 0, 0, A)
INVALID_OPERATION is generated if the format of <sourceId> is not
one of formats in Table 1.1.
INVALID_ENUM is generated if <destTarget> is not TEXTURE_3D or
TEXTURE_2D_ARRAY.
INVALID_VALUE is generated if the texture corresponding to
<sourceId> has not been bound as <destTarget>.
INVALID_OPERATION is generated if <internalFormat> is not one of
the sized internal formats in Table 1.0.
The command
CopySubTexture3DANGLE
All CopySubTexture3DANGLE behavior is the same as
CopySubTextureCHROMIUM unless otherwise defined below.
<zoffset> specifies a texel offset in the z direction
respectively within the destination texture.
<z> specifies a texel offset in the z direction respectively
within the source texture.
<depth> specifies the depth of the texture subimage.
INVALID_ENUM is generated if <destTarget> is not TEXTURE_3D or
TEXTURE_2D_ARRAY.
INVALID_VALUE is generated if the texture corresponding to
<sourceId> and <destId> have not been bound as <destTarget>.
INVALID_VALUE is generated if either <sourceId> texture or
<destId> texture is not defined.
INVALID_OPERATION is generated if the format of <sourceId> or
<destId> is not one of formats in Table 1.1.
INVALID_VALUE is generated if zoffset is less than 0.
INVALID_VALUE is generated if z is less than 0.
INVALID_VALUE is generated if depth is less than 0.
INVALID_VALUE is generated if (<z> + <depth>) > srcDepth.
INVALID_VALUE is generated if (<zoffset> + <depth>) > destDepth.
Table 1.0 internal formats for CopyTexture3DANGLE:
<internalFormat>
---------------
RGB
RGBA
LUMINANCE
LUMINANCE_ALPHA
ALPHA
R8
R8_SNORM
R16F
R32F
R8UI
R8I
R16UI
R16I
R32UI
R32I
RG8
RG8_SNORM
RG16F
RG32F
RG8UI
RG8I
RG16UI
RG16I
RG32UI
RG32I
RGB8
SRGB8
RGB565
RGB8_SNORM
R11F_G11F_B10F
RGB9_E5
RGB16F
RGB32F
RGB8UI
RGB8I
RGB16UI
RGB16I
RGB32UI
RGB32I
RGBA8
SRGB8_ALPHA8
RGBA8_SNORM
RGB5_A1
RGBA4
RGB10_A2
RGBA16F
RGBA32F
RGBA8UI
RGBA8I
RGB10_A2UI
RGBA16UI
RGBA16I
RGBA32I
RGBA32UI
Table 1.1 Valid source texture formats for
CopyTexture3DANGLE and source and destination formats for
CopySubTexture3DANGLE:
Format
---------------
RED
RED_INTEGER
RG
RG_INTEGER
RGB
RGB_INTEGER
RGBA
RGBA_INTEGER
LUMINANCE_ALPHA
LUMINANCE
ALPHA
Revision History
Version 1, 2018-8-8 (Brandon Jones)
- Initial implementation.
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