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/*
* (C) Copyright IBM Corporation 2004
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, and/or sell copies of the Software, and to permit persons to whom
* the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/**
* \file glx_texture_compression.c
* Contains the routines required to implement GLX protocol for
* ARB_texture_compression and related extensions.
*
* \sa http://oss.sgi.com/projects/ogl-sample/registry/ARB/texture_compression.txt
*
* \author Ian Romanick <idr@us.ibm.com>
*/
#include "packrender.h"
#include "packsingle.h"
#include "indirect.h"
#include <assert.h>
void
__indirect_glGetCompressedTexImageARB( GLenum target, GLint level,
GLvoid * img )
{
__GLX_SINGLE_DECLARE_VARIABLES();
xGLXGetTexImageReply reply;
size_t image_bytes;
__GLX_SINGLE_LOAD_VARIABLES();
__GLX_SINGLE_BEGIN( X_GLsop_GetCompressedTexImage, 8 );
__GLX_SINGLE_PUT_LONG( 0, target );
__GLX_SINGLE_PUT_LONG( 4, level );
__GLX_SINGLE_READ_XREPLY();
image_bytes = reply.width;
assert( image_bytes <= ((4 * reply.length) - 0) );
assert( image_bytes >= ((4 * reply.length) - 3) );
if ( image_bytes != 0 ) {
_XRead( dpy, (char *) img, image_bytes );
if ( image_bytes < (4 * reply.length) ) {
_XEatData( dpy, (4 * reply.length) - image_bytes );
}
}
__GLX_SINGLE_END();
}
/**
* Internal function used for \c glCompressedTexImage1D and
* \c glCompressedTexImage2D.
*/
static void
CompressedTexImage1D2D( GLenum target, GLint level,
GLenum internal_format,
GLsizei width, GLsizei height,
GLint border, GLsizei image_size,
const GLvoid *data, CARD32 rop )
{
__GLX_DECLARE_VARIABLES();
__GLX_LOAD_VARIABLES();
if ( gc->currentDpy == NULL ) {
return;
}
if ( (target == GL_PROXY_TEXTURE_1D)
|| (target == GL_PROXY_TEXTURE_2D)
|| (target == GL_PROXY_TEXTURE_CUBE_MAP) ) {
compsize = 0;
}
else {
compsize = image_size;
}
cmdlen = __GLX_PAD( __GLX_COMPRESSED_TEXIMAGE_CMD_HDR_SIZE
+ compsize );
if ( cmdlen <= gc->maxSmallRenderCommandSize ) {
__GLX_BEGIN_VARIABLE( rop, cmdlen );
__GLX_PUT_LONG( 4, target );
__GLX_PUT_LONG( 8, level );
__GLX_PUT_LONG( 12, internal_format );
__GLX_PUT_LONG( 16, width );
__GLX_PUT_LONG( 20, height );
__GLX_PUT_LONG( 24, border );
__GLX_PUT_LONG( 28, image_size );
if ( compsize != 0 ) {
__GLX_PUT_CHAR_ARRAY( __GLX_COMPRESSED_TEXIMAGE_CMD_HDR_SIZE,
data, image_size );
}
__GLX_END( cmdlen );
}
else {
assert( compsize != 0 );
__GLX_BEGIN_VARIABLE_LARGE( rop, cmdlen + 4 );
__GLX_PUT_LONG( 8, target );
__GLX_PUT_LONG( 12, level );
__GLX_PUT_LONG( 16, internal_format );
__GLX_PUT_LONG( 20, width );
__GLX_PUT_LONG( 24, height );
__GLX_PUT_LONG( 28, border );
__GLX_PUT_LONG( 32, image_size );
__glXSendLargeCommand( gc, gc->pc,
__GLX_COMPRESSED_TEXIMAGE_CMD_HDR_SIZE + 4,
data, image_size );
}
}
/**
* Internal function used for \c glCompressedTexSubImage1D and
* \c glCompressedTexSubImage2D.
*/
static void
CompressedTexSubImage1D2D( GLenum target, GLint level,
GLsizei xoffset, GLsizei yoffset,
GLsizei width, GLsizei height,
GLenum format, GLsizei image_size,
const GLvoid *data, CARD32 rop )
{
__GLX_DECLARE_VARIABLES();
__GLX_LOAD_VARIABLES();
if ( gc->currentDpy == NULL ) {
return;
}
if ( target == GL_PROXY_TEXTURE_3D ) {
compsize = 0;
}
else {
compsize = image_size;
}
cmdlen = __GLX_PAD( __GLX_COMPRESSED_TEXSUBIMAGE_CMD_HDR_SIZE
+ compsize );
if ( cmdlen <= gc->maxSmallRenderCommandSize ) {
__GLX_BEGIN_VARIABLE( rop, cmdlen );
__GLX_PUT_LONG( 4, target );
__GLX_PUT_LONG( 8, level );
__GLX_PUT_LONG( 12, xoffset );
__GLX_PUT_LONG( 16, yoffset );
__GLX_PUT_LONG( 20, width );
__GLX_PUT_LONG( 24, height );
__GLX_PUT_LONG( 28, format );
__GLX_PUT_LONG( 32, image_size );
if ( compsize != 0 ) {
__GLX_PUT_CHAR_ARRAY( __GLX_COMPRESSED_TEXSUBIMAGE_CMD_HDR_SIZE,
data, image_size );
}
__GLX_END( cmdlen );
}
else {
assert( compsize != 0 );
__GLX_BEGIN_VARIABLE_LARGE( rop, cmdlen + 4 );
__GLX_PUT_LONG( 8, target );
__GLX_PUT_LONG( 12, level );
__GLX_PUT_LONG( 16, xoffset );
__GLX_PUT_LONG( 20, yoffset );
__GLX_PUT_LONG( 24, width );
__GLX_PUT_LONG( 28, height );
__GLX_PUT_LONG( 32, format );
__GLX_PUT_LONG( 36, image_size );
__glXSendLargeCommand( gc, gc->pc,
__GLX_COMPRESSED_TEXSUBIMAGE_CMD_HDR_SIZE + 4,
data, image_size );
}
}
void
__indirect_glCompressedTexImage1DARB( GLenum target, GLint level,
GLenum internal_format, GLsizei width,
GLint border, GLsizei image_size,
const GLvoid *data )
{
CompressedTexImage1D2D( target, level, internal_format, width, 0,
border, image_size, data,
X_GLrop_CompressedTexImage1D );
}
void
__indirect_glCompressedTexImage2DARB( GLenum target, GLint level,
GLenum internal_format,
GLsizei width, GLsizei height,
GLint border, GLsizei image_size,
const GLvoid *data )
{
CompressedTexImage1D2D( target, level, internal_format, width, height,
border, image_size, data,
X_GLrop_CompressedTexImage2D );
}
void
__indirect_glCompressedTexImage3DARB( GLenum target, GLint level,
GLenum internal_format,
GLsizei width, GLsizei height, GLsizei depth,
GLint border, GLsizei image_size,
const GLvoid *data )
{
__GLX_DECLARE_VARIABLES();
__GLX_LOAD_VARIABLES();
if ( gc->currentDpy == NULL ) {
return;
}
cmdlen = __GLX_PAD( __GLX_COMPRESSED_TEXIMAGE_3D_CMD_HDR_SIZE
+ image_size );
if ( cmdlen <= gc->maxSmallRenderCommandSize ) {
__GLX_BEGIN_VARIABLE( X_GLrop_CompressedTexImage3D, cmdlen );
__GLX_PUT_LONG( 4, target );
__GLX_PUT_LONG( 8, level );
__GLX_PUT_LONG( 12, internal_format );
__GLX_PUT_LONG( 16, width );
__GLX_PUT_LONG( 20, height );
__GLX_PUT_LONG( 24, depth );
__GLX_PUT_LONG( 28, border );
__GLX_PUT_LONG( 32, image_size );
if ( image_size != 0 ) {
__GLX_PUT_CHAR_ARRAY( __GLX_COMPRESSED_TEXIMAGE_3D_CMD_HDR_SIZE,
data, image_size );
}
__GLX_END( cmdlen );
}
else {
__GLX_BEGIN_VARIABLE_LARGE( X_GLrop_CompressedTexImage3D,
cmdlen + 4 );
__GLX_PUT_LONG( 8, target );
__GLX_PUT_LONG( 12, level );
__GLX_PUT_LONG( 16, internal_format );
__GLX_PUT_LONG( 20, width );
__GLX_PUT_LONG( 24, height );
__GLX_PUT_LONG( 28, depth );
__GLX_PUT_LONG( 32, border );
__GLX_PUT_LONG( 36, image_size );
__glXSendLargeCommand( gc, gc->pc,
__GLX_COMPRESSED_TEXIMAGE_3D_CMD_HDR_SIZE + 4,
data, image_size );
}
}
void
__indirect_glCompressedTexSubImage1DARB( GLenum target, GLint level,
GLint xoffset,
GLsizei width,
GLenum format, GLsizei image_size,
const GLvoid *data )
{
CompressedTexSubImage1D2D( target, level, xoffset, 0, width, 0,
format, image_size, data,
X_GLrop_CompressedTexSubImage1D );
}
void
__indirect_glCompressedTexSubImage2DARB( GLenum target, GLint level,
GLint xoffset, GLint yoffset,
GLsizei width, GLsizei height,
GLenum format, GLsizei image_size,
const GLvoid *data )
{
CompressedTexSubImage1D2D( target, level, xoffset, yoffset, width, height,
format, image_size, data,
X_GLrop_CompressedTexSubImage2D );
}
void
__indirect_glCompressedTexSubImage3DARB( GLenum target, GLint level,
GLint xoffset, GLint yoffset, GLint zoffset,
GLsizei width, GLsizei height, GLsizei depth,
GLenum format, GLsizei image_size,
const GLvoid *data )
{
__GLX_DECLARE_VARIABLES();
__GLX_LOAD_VARIABLES();
if ( gc->currentDpy == NULL ) {
return;
}
cmdlen = __GLX_PAD( __GLX_COMPRESSED_TEXSUBIMAGE_3D_CMD_HDR_SIZE
+ image_size );
if ( cmdlen <= gc->maxSmallRenderCommandSize ) {
__GLX_BEGIN_VARIABLE( X_GLrop_CompressedTexSubImage3D, cmdlen );
__GLX_PUT_LONG( 4, target );
__GLX_PUT_LONG( 8, level );
__GLX_PUT_LONG( 12, xoffset );
__GLX_PUT_LONG( 16, yoffset );
__GLX_PUT_LONG( 20, zoffset );
__GLX_PUT_LONG( 24, width );
__GLX_PUT_LONG( 28, height );
__GLX_PUT_LONG( 32, depth );
__GLX_PUT_LONG( 36, format );
__GLX_PUT_LONG( 40, image_size );
if ( image_size != 0 ) {
__GLX_PUT_CHAR_ARRAY( __GLX_COMPRESSED_TEXSUBIMAGE_3D_CMD_HDR_SIZE,
data, image_size );
}
__GLX_END( cmdlen );
}
else {
__GLX_BEGIN_VARIABLE_LARGE( X_GLrop_CompressedTexSubImage3D,
cmdlen + 4 );
__GLX_PUT_LONG( 8, target );
__GLX_PUT_LONG( 12, level );
__GLX_PUT_LONG( 16, xoffset );
__GLX_PUT_LONG( 20, yoffset );
__GLX_PUT_LONG( 24, zoffset );
__GLX_PUT_LONG( 28, width );
__GLX_PUT_LONG( 32, height );
__GLX_PUT_LONG( 36, depth );
__GLX_PUT_LONG( 40, format );
__GLX_PUT_LONG( 44, image_size );
__glXSendLargeCommand( gc, gc->pc,
__GLX_COMPRESSED_TEXSUBIMAGE_3D_CMD_HDR_SIZE + 4,
data, image_size );
}
}
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