344 lines
11 KiB
C
344 lines
11 KiB
C
/*
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* (C) Copyright IBM Corporation 2004
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* on the rights to use, copy, modify, merge, publish, distribute, sub
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* license, and/or sell copies of the Software, and to permit persons to whom
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* the Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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* USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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/**
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* \file glx_texture_compression.c
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* Contains the routines required to implement GLX protocol for
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* ARB_texture_compression and related extensions.
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*
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* \sa http://oss.sgi.com/projects/ogl-sample/registry/ARB/texture_compression.txt
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*
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* \author Ian Romanick <idr@us.ibm.com>
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*/
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#include "packrender.h"
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#include "packsingle.h"
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#include "indirect.h"
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#include <assert.h>
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void
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__indirect_glGetCompressedTexImage(GLenum target, GLint level,
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GLvoid * img)
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{
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__GLX_SINGLE_DECLARE_VARIABLES();
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xGLXGetTexImageReply reply;
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size_t image_bytes;
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__GLX_SINGLE_LOAD_VARIABLES();
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__GLX_SINGLE_BEGIN(X_GLsop_GetCompressedTexImage, 8);
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__GLX_SINGLE_PUT_LONG(0, target);
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__GLX_SINGLE_PUT_LONG(4, level);
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__GLX_SINGLE_READ_XREPLY();
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image_bytes = reply.width;
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assert(image_bytes <= ((4 * reply.length) - 0));
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assert(image_bytes >= ((4 * reply.length) - 3));
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if (image_bytes != 0) {
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_XRead(dpy, (char *) img, image_bytes);
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if (image_bytes < (4 * reply.length)) {
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_XEatData(dpy, (4 * reply.length) - image_bytes);
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}
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}
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__GLX_SINGLE_END();
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}
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/**
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* Internal function used for \c glCompressedTexImage1D and
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* \c glCompressedTexImage2D.
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*/
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static void
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CompressedTexImage1D2D(GLenum target, GLint level,
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GLenum internal_format,
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GLsizei width, GLsizei height,
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GLint border, GLsizei image_size,
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const GLvoid * data, CARD32 rop)
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{
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__GLX_DECLARE_VARIABLES();
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__GLX_LOAD_VARIABLES();
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if (gc->currentDpy == NULL) {
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return;
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}
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if ((target == GL_PROXY_TEXTURE_1D)
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|| (target == GL_PROXY_TEXTURE_2D)
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|| (target == GL_PROXY_TEXTURE_CUBE_MAP)) {
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compsize = 0;
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}
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else {
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compsize = image_size;
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}
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cmdlen = __GLX_PAD(__GLX_COMPRESSED_TEXIMAGE_CMD_HDR_SIZE + compsize);
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if (cmdlen <= gc->maxSmallRenderCommandSize) {
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__GLX_BEGIN_VARIABLE(rop, cmdlen);
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__GLX_PUT_LONG(4, target);
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__GLX_PUT_LONG(8, level);
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__GLX_PUT_LONG(12, internal_format);
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__GLX_PUT_LONG(16, width);
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__GLX_PUT_LONG(20, height);
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__GLX_PUT_LONG(24, border);
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__GLX_PUT_LONG(28, image_size);
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if (compsize != 0) {
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__GLX_PUT_CHAR_ARRAY(__GLX_COMPRESSED_TEXIMAGE_CMD_HDR_SIZE,
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data, image_size);
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}
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__GLX_END(cmdlen);
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}
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else {
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assert(compsize != 0);
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__GLX_BEGIN_VARIABLE_LARGE(rop, cmdlen + 4);
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__GLX_PUT_LONG(8, target);
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__GLX_PUT_LONG(12, level);
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__GLX_PUT_LONG(16, internal_format);
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__GLX_PUT_LONG(20, width);
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__GLX_PUT_LONG(24, height);
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__GLX_PUT_LONG(28, border);
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__GLX_PUT_LONG(32, image_size);
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__glXSendLargeCommand(gc, gc->pc,
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__GLX_COMPRESSED_TEXIMAGE_CMD_HDR_SIZE + 4,
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data, image_size);
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}
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}
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/**
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* Internal function used for \c glCompressedTexSubImage1D and
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* \c glCompressedTexSubImage2D.
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*/
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static void
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CompressedTexSubImage1D2D(GLenum target, GLint level,
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GLsizei xoffset, GLsizei yoffset,
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GLsizei width, GLsizei height,
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GLenum format, GLsizei image_size,
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const GLvoid * data, CARD32 rop)
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{
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__GLX_DECLARE_VARIABLES();
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__GLX_LOAD_VARIABLES();
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if (gc->currentDpy == NULL) {
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return;
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}
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if (target == GL_PROXY_TEXTURE_3D) {
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compsize = 0;
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}
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else {
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compsize = image_size;
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}
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cmdlen = __GLX_PAD(__GLX_COMPRESSED_TEXSUBIMAGE_CMD_HDR_SIZE + compsize);
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if (cmdlen <= gc->maxSmallRenderCommandSize) {
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__GLX_BEGIN_VARIABLE(rop, cmdlen);
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__GLX_PUT_LONG(4, target);
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__GLX_PUT_LONG(8, level);
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__GLX_PUT_LONG(12, xoffset);
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__GLX_PUT_LONG(16, yoffset);
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__GLX_PUT_LONG(20, width);
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__GLX_PUT_LONG(24, height);
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__GLX_PUT_LONG(28, format);
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__GLX_PUT_LONG(32, image_size);
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if (compsize != 0) {
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__GLX_PUT_CHAR_ARRAY(__GLX_COMPRESSED_TEXSUBIMAGE_CMD_HDR_SIZE,
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data, image_size);
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}
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__GLX_END(cmdlen);
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}
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else {
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assert(compsize != 0);
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__GLX_BEGIN_VARIABLE_LARGE(rop, cmdlen + 4);
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__GLX_PUT_LONG(8, target);
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__GLX_PUT_LONG(12, level);
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__GLX_PUT_LONG(16, xoffset);
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__GLX_PUT_LONG(20, yoffset);
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__GLX_PUT_LONG(24, width);
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__GLX_PUT_LONG(28, height);
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__GLX_PUT_LONG(32, format);
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__GLX_PUT_LONG(36, image_size);
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__glXSendLargeCommand(gc, gc->pc,
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__GLX_COMPRESSED_TEXSUBIMAGE_CMD_HDR_SIZE + 4,
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data, image_size);
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}
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}
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void
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__indirect_glCompressedTexImage1D(GLenum target, GLint level,
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GLenum internal_format, GLsizei width,
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GLint border, GLsizei image_size,
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const GLvoid * data)
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{
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CompressedTexImage1D2D(target, level, internal_format, width, 0,
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border, image_size, data,
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X_GLrop_CompressedTexImage1D);
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}
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void
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__indirect_glCompressedTexImage2D(GLenum target, GLint level,
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GLenum internal_format,
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GLsizei width, GLsizei height,
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GLint border, GLsizei image_size,
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const GLvoid * data)
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{
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CompressedTexImage1D2D(target, level, internal_format, width, height,
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border, image_size, data,
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X_GLrop_CompressedTexImage2D);
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}
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void
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__indirect_glCompressedTexImage3D(GLenum target, GLint level,
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GLenum internal_format,
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GLsizei width, GLsizei height,
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GLsizei depth, GLint border,
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GLsizei image_size, const GLvoid * data)
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{
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__GLX_DECLARE_VARIABLES();
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__GLX_LOAD_VARIABLES();
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if (gc->currentDpy == NULL) {
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return;
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}
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cmdlen = __GLX_PAD(__GLX_COMPRESSED_TEXIMAGE_3D_CMD_HDR_SIZE + image_size);
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if (cmdlen <= gc->maxSmallRenderCommandSize) {
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__GLX_BEGIN_VARIABLE(X_GLrop_CompressedTexImage3D, cmdlen);
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__GLX_PUT_LONG(4, target);
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__GLX_PUT_LONG(8, level);
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__GLX_PUT_LONG(12, internal_format);
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__GLX_PUT_LONG(16, width);
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__GLX_PUT_LONG(20, height);
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__GLX_PUT_LONG(24, depth);
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__GLX_PUT_LONG(28, border);
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__GLX_PUT_LONG(32, image_size);
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if (image_size != 0) {
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__GLX_PUT_CHAR_ARRAY(__GLX_COMPRESSED_TEXIMAGE_3D_CMD_HDR_SIZE,
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data, image_size);
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}
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__GLX_END(cmdlen);
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}
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else {
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__GLX_BEGIN_VARIABLE_LARGE(X_GLrop_CompressedTexImage3D, cmdlen + 4);
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__GLX_PUT_LONG(8, target);
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__GLX_PUT_LONG(12, level);
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__GLX_PUT_LONG(16, internal_format);
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__GLX_PUT_LONG(20, width);
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__GLX_PUT_LONG(24, height);
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__GLX_PUT_LONG(28, depth);
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__GLX_PUT_LONG(32, border);
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__GLX_PUT_LONG(36, image_size);
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__glXSendLargeCommand(gc, gc->pc,
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__GLX_COMPRESSED_TEXIMAGE_3D_CMD_HDR_SIZE + 4,
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data, image_size);
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}
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}
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void
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__indirect_glCompressedTexSubImage1D(GLenum target, GLint level,
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GLint xoffset,
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GLsizei width,
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GLenum format, GLsizei image_size,
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const GLvoid * data)
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{
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CompressedTexSubImage1D2D(target, level, xoffset, 0, width, 0,
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format, image_size, data,
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X_GLrop_CompressedTexSubImage1D);
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}
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void
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__indirect_glCompressedTexSubImage2D(GLenum target, GLint level,
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GLint xoffset, GLint yoffset,
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GLsizei width, GLsizei height,
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GLenum format, GLsizei image_size,
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const GLvoid * data)
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{
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CompressedTexSubImage1D2D(target, level, xoffset, yoffset, width, height,
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format, image_size, data,
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X_GLrop_CompressedTexSubImage2D);
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}
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void
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__indirect_glCompressedTexSubImage3D(GLenum target, GLint level,
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GLint xoffset, GLint yoffset,
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GLint zoffset, GLsizei width,
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GLsizei height, GLsizei depth,
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GLenum format, GLsizei image_size,
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const GLvoid * data)
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{
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__GLX_DECLARE_VARIABLES();
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__GLX_LOAD_VARIABLES();
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if (gc->currentDpy == NULL) {
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return;
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}
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cmdlen = __GLX_PAD(__GLX_COMPRESSED_TEXSUBIMAGE_3D_CMD_HDR_SIZE
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+ image_size);
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if (cmdlen <= gc->maxSmallRenderCommandSize) {
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__GLX_BEGIN_VARIABLE(X_GLrop_CompressedTexSubImage3D, cmdlen);
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__GLX_PUT_LONG(4, target);
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__GLX_PUT_LONG(8, level);
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__GLX_PUT_LONG(12, xoffset);
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__GLX_PUT_LONG(16, yoffset);
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__GLX_PUT_LONG(20, zoffset);
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__GLX_PUT_LONG(24, width);
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__GLX_PUT_LONG(28, height);
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__GLX_PUT_LONG(32, depth);
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__GLX_PUT_LONG(36, format);
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__GLX_PUT_LONG(40, image_size);
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if (image_size != 0) {
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__GLX_PUT_CHAR_ARRAY(__GLX_COMPRESSED_TEXSUBIMAGE_3D_CMD_HDR_SIZE,
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data, image_size);
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}
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__GLX_END(cmdlen);
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}
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else {
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__GLX_BEGIN_VARIABLE_LARGE(X_GLrop_CompressedTexSubImage3D, cmdlen + 4);
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__GLX_PUT_LONG(8, target);
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__GLX_PUT_LONG(12, level);
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__GLX_PUT_LONG(16, xoffset);
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__GLX_PUT_LONG(20, yoffset);
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__GLX_PUT_LONG(24, zoffset);
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__GLX_PUT_LONG(28, width);
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__GLX_PUT_LONG(32, height);
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__GLX_PUT_LONG(36, depth);
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__GLX_PUT_LONG(40, format);
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__GLX_PUT_LONG(44, image_size);
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__glXSendLargeCommand(gc, gc->pc,
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__GLX_COMPRESSED_TEXSUBIMAGE_3D_CMD_HDR_SIZE + 4,
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data, image_size);
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}
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}
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