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