mesa git update

1 files changed, 204 insertions, 204 deletions

diff --git a/mesalib/docs/MESA_ycbcr_texture.spec b/mesalib/docs/MESA_ycbcr_texture.spec
index 0fa1f7b39..e865039fb 100644
--- a/mesalib/docs/MESA_ycbcr_texture.spec
+++ b/mesalib/docs/MESA_ycbcr_texture.spec
@@ -1,204 +1,204 @@
-Name
-
-    MESA_ycbcr_texture
-
-Name Strings
-
-    GL_MESA_ycbcr_texture
-
-Contact
-
-    Brian Paul, Tungsten Graphics, Inc. (brian.paul 'at' tungstengraphics.com)
-    Keith Whitwell, Tungsten Graphics, Inc.  (keith 'at' tungstengraphics.com)
-
-Status
-
-    Shipping (Mesa 4.0.4 and later)
-
-Version
-
-    1.0
-
-Number
-
-    TBD
-
-Dependencies
-
-    OpenGL 1.0 or later is required
-    This extensions is written against the OpenGL 1.4 Specification.
-    NV_texture_rectangle effects the definition of this extension.
-
-Overview
-
-    This extension supports texture images stored in the YCbCr format.
-    There is no support for converting YCbCr images to RGB or vice versa
-    during pixel transfer.  The texture's YCbCr colors are converted to
-    RGB during texture sampling, after-which, all the usual per-fragment
-    operations take place.  Only 2D texture images are supported (not
-    glDrawPixels, glReadPixels, etc).
-
-    A YCbCr pixel (texel) is a 16-bit unsigned short with two components.
-    The first component is luminance (Y).  For pixels in even-numbered
-    image columns, the second component is Cb.  For pixels in odd-numbered
-    image columns, the second component is Cr.  If one were to convert the
-    data to RGB one would need to examine two pixels from columns N and N+1
-    (where N is even) to deduce the RGB color.
-
-IP Status
-
-    None
-
-Issues
-
-    None
-
-New Procedures and Functions
-
-    None
-
-New Tokens
-
-    Accepted by the <internalFormat> and <format> parameters of
-    TexImage2D and TexSubImage2D:
-
-        YCBCR_MESA                   0x8757
-
-    Accepted by the <type> parameter of TexImage2D and TexSubImage2D:
-
-        UNSIGNED_SHORT_8_8_MESA      0x85BA /* same as Apple's */
-        UNSIGNED_SHORT_8_8_REV_MESA  0x85BB /* same as Apple's */
-
-Additions to Chapter 2 of the OpenGL 1.4 Specification (OpenGL Operation)
-
-    None
-
-Additions to Chapter 3 of the OpenGL 1.4 Specification (Rasterization)
-
-    In section 3.6.4, Rasterization of Pixel Rectangles, on page 101,
-    add the following to Table 3.8 (Packed pixel formats):
-    
-    type Parameter                GL Data   Number of        Matching
-     Token Name                    Type     Components     Pixel Formats
-    --------------                -------   ----------     -------------
-    UNSIGNED_SHORT_8_8_MESA       ushort         2         YCBCR_MESA
-    UNSIGNED_SHORT_8_8_REV_MESA   ushort         2         YCBCR_MESA
-
-
-    In section 3.6.4, Rasterization of Pixel Rectangles, on page 102,
-    add the following to Table 3.10 (UNSIGNED_SHORT formats):
-
-    UNSIGNED_SHORT_8_8_MESA:
-
-      15  14  13  12  11  10  9   8   7   6   5   4   3   2   1   0
-    +-------------------------------+-------------------------------+
-    |              1st              |              2nd              |
-    +-------------------------------+-------------------------------+
-                        
-    UNSIGNED_SHORT_8_8_REV_MESA:
-
-      15  14  13  12  11  10  9   8   7   6   5   4   3   2   1   0
-    +-------------------------------+-------------------------------+
-    |              2nd              |              1st              |
-    +-------------------------------+-------------------------------+
-
-
-    In section 3.6.4, Rasterization of Pixel Rectangles, on page 104,
-    add the following to Table 3.12 (Packed pixel fiedl assignments):
-
-                       First       Second     Third      Fourth
-    Format             Element     Element    Element    Element
-    ------             -------     -------    -------    -------
-    YCBCR_MESA         luminance   chroma
-
-
-    In section 3.8.1, Texture Image Specification, on page 125, add
-    another item to the list of TexImage2D and TexImage3D equivalence
-    exceptions:
-
-    * The value of internalformat and format may be YCBCR_MESA to
-      indicate that the image data is in YCbCr format.  type must
-      be either UNSIGNED_SHORT_8_8_MESA or UNSIGNED_SHORT_8_8_REV_MESA
-      as seen in tables 3.8 and 3.10.  Table 3.12 describes the mapping
-      between Y and Cb/Cr to the components.
-      If NV_texture_rectangle is supported target may also be
-      TEXTURE_RECTANGLE_NV or PROXY_TEXTURE_RECTANGLE_NV.
-      All pixel transfer operations are bypassed.  The texture is stored as
-      YCbCr, not RGB.  Queries of the texture's red, green and blue component
-      sizes will return zero.  The YCbCr colors are converted to RGB during
-      texture sampling using an implementation dependent conversion.
-
-
-    In section 3.8.1, Texture Image Specification, on page 126, add
-    another item to the list of TexImage1D and TexImage2D equivalence
-    exceptions:
-
-    * The value of internalformat and format can not be YCBCR_MESA.
-
-
-    In section 3.8.2, Alternate Texture Image Specification Commands, on
-    page 129, insert this paragraph after the first full paragraph on the
-    page:
-
-         "If the internal storage format of the image being updated by
-    TexSubImage2D is YCBCR_MESA then format must be YCBCR_MESA.
-    The error INVALID_OPERATION will be generated otherwise."
-
-
-Additions to Chapter 4 of the OpenGL 1.4 Specification (Per-Fragment
-Operations and the Frame Buffer)
-
-    None
-
-Additions to Chapter 5 of the OpenGL 1.4 Specification (Special Functions)
-
-    None
-
-Additions to Chapter 6 of the OpenGL 1.4 Specification (State and
-State Requests)
-
-    None
-
-Additions to Appendix A of the OpenGL 1.4 Specification (Invariance)
-
-    None
-
-Additions to the AGL/GLX/WGL Specifications
-
-    None
-
-GLX Protocol
-
-    None
-
-Errors
-
-    INVALID_ENUM is generated by TexImage2D if <internalFormat> is
-    MESA_YCBCR but <format> is not MESA_YCBCR.
-
-    INVALID_ENUM is generated by TexImage2D if <format> is MESA_YCBCR but
-    <internalFormat> is not MESA_YCBCR.
-
-    INVALID_VALUE is generated by TexImage2D if <format> is MESA_YCBCR and
-    <internalFormat> is MESA_YCBCR and <border> is not zero.
-
-    INVALID_OPERATION is generated by TexSubImage2D if the internal image
-    format is YCBCR_MESA and <format> is not YCBCR_MESA.
-
-    INVALID_OPERATION is generated by CopyTexSubImage2D if the internal
-    image is YCBCR_MESA.
-    
-New State
-
-    Edit table 6.16 on page 231: change the type of TEXTURE_INTERNAL_FORMAT
-    from n x Z42 to n x Z43 to indicate that internal format may also be
-    YCBCR_MESA.
-
-Revision History
-
-    20 September 2002 - Initial draft
-    29 April 2003 - minor updates
-     3 September 2003 - further clarify when YCbCr->RGB conversion takes place
-    19 September 2003 - a few more updates prior to submitting to extension
-                        registry.
-     3 April 2004 - fix assorted inaccuracies
+Name

+

+    MESA_ycbcr_texture

+

+Name Strings

+

+    GL_MESA_ycbcr_texture

+

+Contact

+

+    Brian Paul, Tungsten Graphics, Inc. (brian.paul 'at' tungstengraphics.com)

+    Keith Whitwell, Tungsten Graphics, Inc.  (keith 'at' tungstengraphics.com)

+

+Status

+

+    Shipping (Mesa 4.0.4 and later)

+

+Version

+

+    1.0

+

+Number

+

+    TBD

+

+Dependencies

+

+    OpenGL 1.0 or later is required

+    This extension is written against the OpenGL 1.4 Specification.

+    NV_texture_rectangle effects the definition of this extension.

+

+Overview

+

+    This extension supports texture images stored in the YCbCr format.

+    There is no support for converting YCbCr images to RGB or vice versa

+    during pixel transfer.  The texture's YCbCr colors are converted to

+    RGB during texture sampling, after-which, all the usual per-fragment

+    operations take place.  Only 2D texture images are supported (not

+    glDrawPixels, glReadPixels, etc).

+

+    A YCbCr pixel (texel) is a 16-bit unsigned short with two components.

+    The first component is luminance (Y).  For pixels in even-numbered

+    image columns, the second component is Cb.  For pixels in odd-numbered

+    image columns, the second component is Cr.  If one were to convert the

+    data to RGB one would need to examine two pixels from columns N and N+1

+    (where N is even) to deduce the RGB color.

+

+IP Status

+

+    None

+

+Issues

+

+    None

+

+New Procedures and Functions

+

+    None

+

+New Tokens

+

+    Accepted by the <internalFormat> and <format> parameters of

+    TexImage2D and TexSubImage2D:

+

+        YCBCR_MESA                   0x8757

+

+    Accepted by the <type> parameter of TexImage2D and TexSubImage2D:

+

+        UNSIGNED_SHORT_8_8_MESA      0x85BA /* same as Apple's */

+        UNSIGNED_SHORT_8_8_REV_MESA  0x85BB /* same as Apple's */

+

+Additions to Chapter 2 of the OpenGL 1.4 Specification (OpenGL Operation)

+

+    None

+

+Additions to Chapter 3 of the OpenGL 1.4 Specification (Rasterization)

+

+    In section 3.6.4, Rasterization of Pixel Rectangles, on page 101,

+    add the following to Table 3.8 (Packed pixel formats):

+    

+    type Parameter                GL Data   Number of        Matching

+     Token Name                    Type     Components     Pixel Formats

+    --------------                -------   ----------     -------------

+    UNSIGNED_SHORT_8_8_MESA       ushort         2         YCBCR_MESA

+    UNSIGNED_SHORT_8_8_REV_MESA   ushort         2         YCBCR_MESA

+

+

+    In section 3.6.4, Rasterization of Pixel Rectangles, on page 102,

+    add the following to Table 3.10 (UNSIGNED_SHORT formats):

+

+    UNSIGNED_SHORT_8_8_MESA:

+

+      15  14  13  12  11  10  9   8   7   6   5   4   3   2   1   0

+    +-------------------------------+-------------------------------+

+    |              1st              |              2nd              |

+    +-------------------------------+-------------------------------+

+                        

+    UNSIGNED_SHORT_8_8_REV_MESA:

+

+      15  14  13  12  11  10  9   8   7   6   5   4   3   2   1   0

+    +-------------------------------+-------------------------------+

+    |              2nd              |              1st              |

+    +-------------------------------+-------------------------------+

+

+

+    In section 3.6.4, Rasterization of Pixel Rectangles, on page 104,

+    add the following to Table 3.12 (Packed pixel field assignments):

+

+                       First       Second     Third      Fourth

+    Format             Element     Element    Element    Element

+    ------             -------     -------    -------    -------

+    YCBCR_MESA         luminance   chroma

+

+

+    In section 3.8.1, Texture Image Specification, on page 125, add

+    another item to the list of TexImage2D and TexImage3D equivalence

+    exceptions:

+

+    * The value of internalformat and format may be YCBCR_MESA to

+      indicate that the image data is in YCbCr format.  type must

+      be either UNSIGNED_SHORT_8_8_MESA or UNSIGNED_SHORT_8_8_REV_MESA

+      as seen in tables 3.8 and 3.10.  Table 3.12 describes the mapping

+      between Y and Cb/Cr to the components.

+      If NV_texture_rectangle is supported target may also be

+      TEXTURE_RECTANGLE_NV or PROXY_TEXTURE_RECTANGLE_NV.

+      All pixel transfer operations are bypassed.  The texture is stored as

+      YCbCr, not RGB.  Queries of the texture's red, green and blue component

+      sizes will return zero.  The YCbCr colors are converted to RGB during

+      texture sampling using an implementation dependent conversion.

+

+

+    In section 3.8.1, Texture Image Specification, on page 126, add

+    another item to the list of TexImage1D and TexImage2D equivalence

+    exceptions:

+

+    * The value of internalformat and format can not be YCBCR_MESA.

+

+

+    In section 3.8.2, Alternate Texture Image Specification Commands, on

+    page 129, insert this paragraph after the first full paragraph on the

+    page:

+

+         "If the internal storage format of the image being updated by

+    TexSubImage2D is YCBCR_MESA then format must be YCBCR_MESA.

+    The error INVALID_OPERATION will be generated otherwise."

+

+

+Additions to Chapter 4 of the OpenGL 1.4 Specification (Per-Fragment

+Operations and the Frame Buffer)

+

+    None

+

+Additions to Chapter 5 of the OpenGL 1.4 Specification (Special Functions)

+

+    None

+

+Additions to Chapter 6 of the OpenGL 1.4 Specification (State and

+State Requests)

+

+    None

+

+Additions to Appendix A of the OpenGL 1.4 Specification (Invariance)

+

+    None

+

+Additions to the AGL/GLX/WGL Specifications

+

+    None

+

+GLX Protocol

+

+    None

+

+Errors

+

+    INVALID_ENUM is generated by TexImage2D if <internalFormat> is

+    MESA_YCBCR but <format> is not MESA_YCBCR.

+

+    INVALID_ENUM is generated by TexImage2D if <format> is MESA_YCBCR but

+    <internalFormat> is not MESA_YCBCR.

+

+    INVALID_VALUE is generated by TexImage2D if <format> is MESA_YCBCR and

+    <internalFormat> is MESA_YCBCR and <border> is not zero.

+

+    INVALID_OPERATION is generated by TexSubImage2D if the internal image

+    format is YCBCR_MESA and <format> is not YCBCR_MESA.

+

+    INVALID_OPERATION is generated by CopyTexSubImage2D if the internal

+    image is YCBCR_MESA.

+    

+New State

+

+    Edit table 6.16 on page 231: change the type of TEXTURE_INTERNAL_FORMAT

+    from n x Z42 to n x Z43 to indicate that internal format may also be

+    YCBCR_MESA.

+

+Revision History

+

+    20 September 2002 - Initial draft

+    29 April 2003 - minor updates

+     3 September 2003 - further clarify when YCbCr->RGB conversion takes place

+    19 September 2003 - a few more updates prior to submitting to extension

+                        registry.

+     3 April 2004 - fix assorted inaccuracies