xserver/Xext/glx/indirect_texture_compression.c
Enrico Weigelt, metux IT consult 1fced9e85f glx: use rpcbuf reply path in GetCompressedTexImage / GetProgramString
Convert the GetCompressedTexImage (indirect_texture_compression.c) and
GetProgramString (indirect_program.c) handlers, including their swapped
variants, to the rpcbuf reply path. The image/string payload is a raw byte
stream (x_rpcbuf_write_binary_pad()); X_SEND_REPLY_WITH_RPCBUF() derives the
length and swaps the header, and the width field is swapped via
X_REPLY_FIELD_CARD32() (keyed on client->swapped). This removes the
__GLX_BEGIN_REPLY/__GLX_SEND_HEADER/__GLX_SEND_VOID_ARRAY macros and the
explicit do_swap handling of the reply.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
2026-06-26 19:34:14 +02:00

120 lines
4.2 KiB
C

/*
* (C) Copyright IBM Corporation 2005, 2006
* 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
* 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
* IBM,
* 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.
*/
#include <dix-config.h>
#include "dix/request_priv.h"
#include "include/misc.h"
#include "glxserver.h"
#include "glxext.h"
#include "singlesize.h"
#include "unpack.h"
#include "indirect_size_get.h"
#include "indirect_dispatch.h"
int
__glXDisp_GetCompressedTexImage(struct __GLXclientStateRec *cl, GLbyte * pc)
{
xGLXSingleReq *const req = (xGLXSingleReq *) pc;
int error;
__GLXcontext *const cx = __glXForceCurrent(cl, req->contextTag, &error);
ClientPtr client = cl->client;
REQUEST_FIXED_SIZE(xGLXSingleReq, 8);
pc += __GLX_SINGLE_HDR_SIZE;
if (cx != NULL) {
const GLenum target = *(GLenum *) (pc + 0);
const GLint level = *(GLint *) (pc + 4);
GLint compsize = 0;
char *answer = NULL, answerBuffer[200];
xGLXGetTexImageReply reply = { 0 };
glGetTexLevelParameteriv(target, level, GL_TEXTURE_COMPRESSED_IMAGE_SIZE,
&compsize);
if (compsize != 0) {
PFNGLGETCOMPRESSEDTEXIMAGEARBPROC GetCompressedTexImageARB =
__glGetProcAddress("glGetCompressedTexImageARB");
__GLX_GET_ANSWER_BUFFER(answer, cl, compsize, 1);
__glXClearErrorOccured();
GetCompressedTexImageARB(target, level, answer);
}
x_rpcbuf_t rpcbuf = { .swapped = client->swapped, .err_clear = TRUE };
if (!__glXErrorOccured()) {
reply.width = compsize;
X_REPLY_FIELD_CARD32(width);
x_rpcbuf_write_binary_pad(&rpcbuf, answer, compsize);
}
error = X_SEND_REPLY_WITH_RPCBUF(client, reply, rpcbuf);
}
return error;
}
int
__glXDispSwap_GetCompressedTexImage(struct __GLXclientStateRec *cl, GLbyte * pc)
{
xGLXSingleReq *const req = (xGLXSingleReq *) pc;
int error;
__GLXcontext *const cx =
__glXForceCurrent(cl, bswap_32(req->contextTag), &error);
ClientPtr client = cl->client;
REQUEST_FIXED_SIZE(xGLXSingleReq, 8);
pc += __GLX_SINGLE_HDR_SIZE;
if (cx != NULL) {
const GLenum target = (GLenum) bswap_32(*(int *) (pc + 0));
const GLint level = (GLint) bswap_32(*(int *) (pc + 4));
GLint compsize = 0;
char *answer = NULL, answerBuffer[200];
xGLXGetTexImageReply reply = { 0 };
glGetTexLevelParameteriv(target, level, GL_TEXTURE_COMPRESSED_IMAGE_SIZE,
&compsize);
if (compsize != 0) {
PFNGLGETCOMPRESSEDTEXIMAGEARBPROC GetCompressedTexImageARB =
__glGetProcAddress("glGetCompressedTexImageARB");
__GLX_GET_ANSWER_BUFFER(answer, cl, compsize, 1);
__glXClearErrorOccured();
GetCompressedTexImageARB(target, level, answer);
}
x_rpcbuf_t rpcbuf = { .swapped = client->swapped, .err_clear = TRUE };
if (!__glXErrorOccured()) {
reply.width = compsize;
X_REPLY_FIELD_CARD32(width);
x_rpcbuf_write_binary_pad(&rpcbuf, answer, compsize);
}
error = X_SEND_REPLY_WITH_RPCBUF(client, reply, rpcbuf);
}
return error;
}