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diff --git a/nx-X11/extras/ogl-sample/main/doc/man/mangl/standard/copyteximage2d.gl b/nx-X11/extras/ogl-sample/main/doc/man/mangl/standard/copyteximage2d.gl new file mode 100644 index 000000000..b6bec2812 --- /dev/null +++ b/nx-X11/extras/ogl-sample/main/doc/man/mangl/standard/copyteximage2d.gl @@ -0,0 +1,182 @@ +_C_ License Applicability. Except to the extent portions of this file are +_C_ made subject to an alternative license as permitted in the SGI Free +_C_ Software License B, Version 1.1 (the "License"), the contents of this +_C_ file are subject only to the provisions of the License. You may not use +_C_ this file except in compliance with the License. You may obtain a copy +_C_ of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 +_C_ Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: +_C_ +_C_ http://oss.sgi.com/projects/FreeB +_C_ +_C_ Note that, as provided in the License, the Software is distributed on an +_C_ "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS +_C_ DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND +_C_ CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A +_C_ PARTICULAR PURPOSE, AND NON-INFRINGEMENT. +_C_ +_C_ Original Code. The Original Code is: OpenGL Sample Implementation, +_C_ Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, +_C_ Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. +_C_ Copyright in any portions created by third parties is as indicated +_C_ elsewhere herein. All Rights Reserved. +_C_ +_C_ Additional Notice Provisions: The application programming interfaces +_C_ established by SGI in conjunction with the Original Code are The +_C_ OpenGL(R) Graphics System: A Specification (Version 1.2.1), released +_C_ April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version +_C_ 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X +_C_ Window System(R) (Version 1.3), released October 19, 1998. This software +_C_ was created using the OpenGL(R) version 1.2.1 Sample Implementation +_C_ published by SGI, but has not been independently verified as being +_C_ compliant with the OpenGL(R) version 1.2.1 Specification. +_C_ +_C_ The first character in this file must be an '_'! +_C_ Anything on a line after _C_ is ignored +_define(_filters,eqn)_C_ +_C_ eqn is automatically replaced with neqn for nroff +_header(CopyTexImage2D,copy pixels into a 2D texture image) +_names(CopyTexImage2D) +.EQ +delim $$ +.EN +.SH PARAMETERS +_phead(_param1) +Specifies the target texture. +Must be _const(TEXTURE_2D). +_phead(_param2) +Specifies the level-of-detail number. +Level 0 is the base image level. +Level \f2n\fP is the \f2n\fPth mipmap reduction image. +_phead(_param3) +Specifies the internal format of the texture. +Must be one of the following symbolic constants: +_const(ALPHA), +_const(ALPHA4), +_const(ALPHA8), +_const(ALPHA12), +_const(ALPHA16), +_const(LUMINANCE), +_const(LUMINANCE4), +_const(LUMINANCE8), +_const(LUMINANCE12), +_const(LUMINANCE16), +_const(LUMINANCE_ALPHA), +_const(LUMINANCE4_ALPHA4), +_const(LUMINANCE6_ALPHA2), +_const(LUMINANCE8_ALPHA8), +_const(LUMINANCE12_ALPHA4), +_const(LUMINANCE12_ALPHA12), +_const(LUMINANCE16_ALPHA16), +_const(INTENSITY), +_const(INTENSITY4), +_const(INTENSITY8), +_const(INTENSITY12), +_const(INTENSITY16), +_const(RGB), +_const(R3_G3_B2), +_const(RGB4), +_const(RGB5), +_const(RGB8), +_const(RGB10), +_const(RGB12), +_const(RGB16), +_const(RGBA), +_const(RGBA2), +_const(RGBA4), +_const(RGB5_A1), +_const(RGBA8), +_const(RGB10_A2), +_const(RGBA12), or +_const(RGBA16). +_phead(_param4 _param5) +Specify the window coordinates of the lower left corner +of the rectangular region of pixels to be copied. +_phead(_param6) +Specifies the width of the texture image. +Must be 0 or $2 sup n ~+~ 2*$_param8 for some integer $n$. +_phead(_param7) +Specifies the height of the texture image. +Must be 0 or $2 sup m ~+~ 2*$_param8 for some integer $m$. +_phead(_param8) +Specifies the width of the border. +Must be either 0 or 1. +.SH DESCRIPTION +_cmnd defines a two-dimensional texture image with pixels from the current +_const(READ_BUFFER). +.P +The screen-aligned pixel rectangle with lower left corner at (_param4, +_param5) and with a width of _param6$~+~2~*~$_param8 and a height of +_param7$~+~2~*~$_param8 +defines the texture array +at the mipmap level specified by _param2. +_param3 specifies the internal format of the texture array. +.P +The pixels in the rectangle are processed exactly as if +_cmnd(CopyPixels) had been called, but the process stops just before +final conversion. +At this point all pixel component values are clamped to the range $[0,1]$ +and then converted to the texture's internal format for storage in the texel +array. +.P +Pixel ordering is such that lower $x$ and $y$ screen coordinates correspond to +lower $s$ and $t$ texture coordinates. +.P +If any of the pixels within the specified rectangle of the current +_const(READ_BUFFER) are outside the window associated with the current +rendering context, then the values obtained for those pixels are undefined. +.P +.SH NOTES +_cmnd is available only if the GL version is 1.1 or greater. +.P +Texturing has no effect in color index mode. +.P +1, 2, 3, and 4 are not accepted values for _param3. +.P +An image with height or width of 0 indicates a NULL texture. +.P +When the _arbstring(imaging) extension is supported, the RGBA components +read from the framebuffer may be processed by the imaging pipeline. See +_cmnd(TexImage1D) for specific details. +.SH ERRORS +_const(INVALID_ENUM) is generated if _param1 is not _const(TEXTURE_2D). +.P +_const(INVALID_VALUE) is generated if _param2 is less than 0. +.P +_const(INVALID_VALUE) may be generated if _param2 is greater +than $log sub 2 max$, +where $max$ is the returned value of _const(MAX_TEXTURE_SIZE). +.P +_const(INVALID_VALUE) is generated if _param6 or _param7 is less than 0, +greater than $2~+~$_const(MAX_TEXTURE_SIZE), or if _param6 or _param7 cannot be +represented as $2 sup k ~+~ 2~*~$_param8 for some integer +$k$. +.P +_const(INVALID_VALUE) is generated if _param8 is not 0 or 1. +.P +_const(INVALID_VALUE) is generated if _param3 is not one of the +allowable values. +.P +_const(INVALID_OPERATION) is generated if _cmnd is executed +between the execution of _cmnd(Begin) and the corresponding +execution of _cmnd(End). +.SH ASSOCIATED GETS +_cmnd(GetTexImage) +.br +_cmnd(IsEnabled) with argument _const(TEXTURE_2D) +.SH SEE ALSO +_cmnd(CopyPixels), +_cmnd(CopyTexImage1D), +_cmnd(CopyTexSubImage1D), +_cmnd(CopyTexSubImage2D), +_cmnd(PixelStore), +_cmnd(PixelTransfer), +_cmnd(TexEnv), +_cmnd(TexGen), +_cmnd(TexImage1D), +_cmnd(TexImage2D), +_cmnd(TexSubImage1D), +_cmnd(TexSubImage2D), +.br +_cmnd(TexParameter) + + |