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xserver/glx/singlepixswap.c

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/*
* SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
* Copyright (C) 1991-2000 Silicon Graphics, Inc. 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, sublicense,
* 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 including the dates of first publication and
* either this permission notice or a reference to
* http://oss.sgi.com/projects/FreeB/
* 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 NONINFRINGEMENT. IN NO EVENT SHALL
* SILICON GRAPHICS, INC. 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.
*
* Except as contained in this notice, the name of Silicon Graphics, Inc.
* shall not be used in advertising or otherwise to promote the sale, use or
* other dealings in this Software without prior written authorization from
* Silicon Graphics, Inc.
*/
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include "glxserver.h"
#include "glxext.h"
#include "singlesize.h"
#include "unpack.h"
#include "indirect_dispatch.h"
#include "indirect_size_get.h"
#include "glapitable.h"
#include "glapi.h"
#include "glthread.h"
#include "dispatch.h"
int __glXDispSwap_ReadPixels(__GLXclientState *cl, GLbyte *pc)
{
GLsizei width, height;
GLenum format, type;
GLboolean swapBytes, lsbFirst;
GLint compsize;
__GLX_DECLARE_SWAP_VARIABLES;
__GLXcontext *cx;
ClientPtr client = cl->client;
int error;
char *answer, answerBuffer[200];
__GLX_SWAP_INT(&((xGLXSingleReq *)pc)->contextTag);
cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error);
if (!cx) {
return error;
}
pc += __GLX_SINGLE_HDR_SIZE;
__GLX_SWAP_INT(pc+0);
__GLX_SWAP_INT(pc+4);
__GLX_SWAP_INT(pc+8);
__GLX_SWAP_INT(pc+12);
__GLX_SWAP_INT(pc+16);
__GLX_SWAP_INT(pc+20);
width = *(GLsizei *)(pc + 8);
height = *(GLsizei *)(pc + 12);
format = *(GLenum *)(pc + 16);
type = *(GLenum *)(pc + 20);
swapBytes = *(GLboolean *)(pc + 24);
lsbFirst = *(GLboolean *)(pc + 25);
compsize = __glReadPixels_size(format,type,width,height);
if (compsize < 0) compsize = 0;
CALL_PixelStorei( GET_DISPATCH(), (GL_PACK_SWAP_BYTES, !swapBytes) );
CALL_PixelStorei( GET_DISPATCH(), (GL_PACK_LSB_FIRST, lsbFirst) );
__GLX_GET_ANSWER_BUFFER(answer,cl,compsize,1);
__glXClearErrorOccured();
CALL_ReadPixels( GET_DISPATCH(),
(*(GLint *)(pc + 0),
*(GLint *)(pc + 4),
*(GLsizei *)(pc + 8),
*(GLsizei *)(pc + 12),
*(GLenum *)(pc + 16),
*(GLenum *)(pc + 20),
answer)
);
if (__glXErrorOccured()) {
__GLX_BEGIN_REPLY(0);
__GLX_SWAP_REPLY_HEADER();
__GLX_SEND_HEADER();
} else {
__GLX_BEGIN_REPLY(compsize);
__GLX_SWAP_REPLY_HEADER();
__GLX_SEND_HEADER();
__GLX_SEND_VOID_ARRAY(compsize);
}
return Success;
}
int __glXDispSwap_GetTexImage(__GLXclientState *cl, GLbyte *pc)
{
GLint level, compsize;
GLenum format, type, target;
GLboolean swapBytes;
__GLX_DECLARE_SWAP_VARIABLES;
__GLXcontext *cx;
ClientPtr client = cl->client;
int error;
char *answer, answerBuffer[200];
GLint width=0, height=0, depth=1;
__GLX_SWAP_INT(&((xGLXSingleReq *)pc)->contextTag);
cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error);
if (!cx) {
return error;
}
pc += __GLX_SINGLE_HDR_SIZE;
__GLX_SWAP_INT(pc+0);
__GLX_SWAP_INT(pc+4);
__GLX_SWAP_INT(pc+8);
__GLX_SWAP_INT(pc+12);
level = *(GLint *)(pc + 4);
format = *(GLenum *)(pc + 8);
type = *(GLenum *)(pc + 12);
target = *(GLenum *)(pc + 0);
swapBytes = *(GLboolean *)(pc + 16);
CALL_GetTexLevelParameteriv( GET_DISPATCH(), (target, level, GL_TEXTURE_WIDTH, &width) );
CALL_GetTexLevelParameteriv( GET_DISPATCH(), (target, level, GL_TEXTURE_HEIGHT, &height) );
if ( target == GL_TEXTURE_3D) {
CALL_GetTexLevelParameteriv( GET_DISPATCH(), (target, level, GL_TEXTURE_DEPTH, &depth) );
}
/*
* The three queries above might fail if we're in a state where queries
* are illegal, but then width, height, and depth would still be zero anyway.
*/
compsize = __glGetTexImage_size(target,level,format,type,width,height,depth);
if (compsize < 0) compsize = 0;
CALL_PixelStorei( GET_DISPATCH(), (GL_PACK_SWAP_BYTES, !swapBytes) );
__GLX_GET_ANSWER_BUFFER(answer,cl,compsize,1);
__glXClearErrorOccured();
CALL_GetTexImage( GET_DISPATCH(), (
*(GLenum *)(pc + 0),
*(GLint *)(pc + 4),
*(GLenum *)(pc + 8),
*(GLenum *)(pc + 12),
answer
) );
if (__glXErrorOccured()) {
__GLX_BEGIN_REPLY(0);
__GLX_SWAP_REPLY_HEADER();
__GLX_SEND_HEADER();
} else {
__GLX_BEGIN_REPLY(compsize);
__GLX_SWAP_REPLY_HEADER();
__GLX_SWAP_INT(&width);
__GLX_SWAP_INT(&height);
__GLX_SWAP_INT(&depth);
((xGLXGetTexImageReply *)&__glXReply)->width = width;
((xGLXGetTexImageReply *)&__glXReply)->height = height;
((xGLXGetTexImageReply *)&__glXReply)->depth = depth;
__GLX_SEND_HEADER();
__GLX_SEND_VOID_ARRAY(compsize);
}
return Success;
}
int __glXDispSwap_GetPolygonStipple(__GLXclientState *cl, GLbyte *pc)
{
GLboolean lsbFirst;
__GLXcontext *cx;
ClientPtr client = cl->client;
int error;
GLubyte answerBuffer[200];
char *answer;
__GLX_DECLARE_SWAP_VARIABLES;
__GLX_SWAP_INT(&((xGLXSingleReq *)pc)->contextTag);
cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error);
if (!cx) {
return error;
}
pc += __GLX_SINGLE_HDR_SIZE;
lsbFirst = *(GLboolean *)(pc + 0);
CALL_PixelStorei( GET_DISPATCH(), (GL_PACK_LSB_FIRST, lsbFirst) );
__GLX_GET_ANSWER_BUFFER(answer,cl,128,1);
__glXClearErrorOccured();
CALL_GetPolygonStipple( GET_DISPATCH(), ((GLubyte *) answer) );
if (__glXErrorOccured()) {
__GLX_BEGIN_REPLY(0);
__GLX_SWAP_REPLY_HEADER();
__GLX_SEND_HEADER();
} else {
__GLX_BEGIN_REPLY(128);
__GLX_SWAP_REPLY_HEADER();
__GLX_SEND_HEADER();
__GLX_SEND_BYTE_ARRAY(128);
}
return Success;
}
static int GetSeparableFilter(__GLXclientState *cl, GLbyte *pc, GLXContextTag tag)
{
GLint compsize, compsize2;
GLenum format, type, target;
GLboolean swapBytes;
__GLXcontext *cx;
ClientPtr client = cl->client;
int error;
__GLX_DECLARE_SWAP_VARIABLES;
char *answer, answerBuffer[200];
GLint width=0, height=0;
cx = __glXForceCurrent(cl, tag, &error);
if (!cx) {
return error;
}
__GLX_SWAP_INT(pc+0);
__GLX_SWAP_INT(pc+4);
__GLX_SWAP_INT(pc+8);
format = *(GLenum *)(pc + 4);
type = *(GLenum *)(pc + 8);
target = *(GLenum *)(pc + 0);
swapBytes = *(GLboolean *)(pc + 12);
/* target must be SEPARABLE_2D, however I guess we can let the GL
barf on this one.... */
CALL_GetConvolutionParameteriv( GET_DISPATCH(), (target, GL_CONVOLUTION_WIDTH, &width) );
CALL_GetConvolutionParameteriv( GET_DISPATCH(), (target, GL_CONVOLUTION_HEIGHT, &height) );
/*
* The two queries above might fail if we're in a state where queries
* are illegal, but then width and height would still be zero anyway.
*/
compsize = __glGetTexImage_size(target,1,format,type,width,1,1);
compsize2 = __glGetTexImage_size(target,1,format,type,height,1,1);
if (compsize < 0) compsize = 0;
if (compsize2 < 0) compsize2 = 0;
compsize = __GLX_PAD(compsize);
compsize2 = __GLX_PAD(compsize2);
CALL_PixelStorei( GET_DISPATCH(), (GL_PACK_SWAP_BYTES, !swapBytes) );
__GLX_GET_ANSWER_BUFFER(answer,cl,compsize + compsize2,1);
__glXClearErrorOccured();
CALL_GetSeparableFilter( GET_DISPATCH(), (
*(GLenum *)(pc + 0),
*(GLenum *)(pc + 4),
*(GLenum *)(pc + 8),
answer,
answer + compsize,
NULL
) );
if (__glXErrorOccured()) {
__GLX_BEGIN_REPLY(0);
__GLX_SWAP_REPLY_HEADER();
} else {
__GLX_BEGIN_REPLY(compsize + compsize2);
__GLX_SWAP_REPLY_HEADER();
__GLX_SWAP_INT(&width);
__GLX_SWAP_INT(&height);
((xGLXGetSeparableFilterReply *)&__glXReply)->width = width;
((xGLXGetSeparableFilterReply *)&__glXReply)->height = height;
__GLX_SEND_VOID_ARRAY(compsize + compsize2);
}
return Success;
}
int __glXDispSwap_GetSeparableFilter(__GLXclientState *cl, GLbyte *pc)
{
const GLXContextTag tag = __GLX_GET_SINGLE_CONTEXT_TAG(pc);
return GetSeparableFilter(cl, pc + __GLX_SINGLE_HDR_SIZE, tag);
}
int __glXDispSwap_GetSeparableFilterEXT(__GLXclientState *cl, GLbyte *pc)
{
const GLXContextTag tag = __GLX_GET_VENDPRIV_CONTEXT_TAG(pc);
return GetSeparableFilter(cl, pc + __GLX_VENDPRIV_HDR_SIZE, tag);
}
static int GetConvolutionFilter(__GLXclientState *cl, GLbyte *pc, GLXContextTag tag)
{
GLint compsize;
GLenum format, type, target;
GLboolean swapBytes;
__GLXcontext *cx;
ClientPtr client = cl->client;
int error;
__GLX_DECLARE_SWAP_VARIABLES;
char *answer, answerBuffer[200];
GLint width=0, height=0;
cx = __glXForceCurrent(cl, tag, &error);
if (!cx) {
return error;
}
__GLX_SWAP_INT(pc+0);
__GLX_SWAP_INT(pc+4);
__GLX_SWAP_INT(pc+8);
format = *(GLenum *)(pc + 4);
type = *(GLenum *)(pc + 8);
target = *(GLenum *)(pc + 0);
swapBytes = *(GLboolean *)(pc + 12);
CALL_GetConvolutionParameteriv( GET_DISPATCH(), (target, GL_CONVOLUTION_WIDTH, &width) );
if (target == GL_CONVOLUTION_2D) {
height = 1;
} else {
CALL_GetConvolutionParameteriv( GET_DISPATCH(), (target, GL_CONVOLUTION_HEIGHT, &height) );
}
/*
* The two queries above might fail if we're in a state where queries
* are illegal, but then width and height would still be zero anyway.
*/
compsize = __glGetTexImage_size(target,1,format,type,width,height,1);
if (compsize < 0) compsize = 0;
CALL_PixelStorei( GET_DISPATCH(), (GL_PACK_SWAP_BYTES, !swapBytes) );
__GLX_GET_ANSWER_BUFFER(answer,cl,compsize,1);
__glXClearErrorOccured();
CALL_GetConvolutionFilter( GET_DISPATCH(), (
*(GLenum *)(pc + 0),
*(GLenum *)(pc + 4),
*(GLenum *)(pc + 8),
answer
) );
if (__glXErrorOccured()) {
__GLX_BEGIN_REPLY(0);
__GLX_SWAP_REPLY_HEADER();
} else {
__GLX_BEGIN_REPLY(compsize);
__GLX_SWAP_REPLY_HEADER();
__GLX_SWAP_INT(&width);
__GLX_SWAP_INT(&height);
((xGLXGetConvolutionFilterReply *)&__glXReply)->width = width;
((xGLXGetConvolutionFilterReply *)&__glXReply)->height = height;
__GLX_SEND_VOID_ARRAY(compsize);
}
return Success;
}
int __glXDispSwap_GetConvolutionFilter(__GLXclientState *cl, GLbyte *pc)
{
const GLXContextTag tag = __GLX_GET_SINGLE_CONTEXT_TAG(pc);
return GetConvolutionFilter(cl, pc + __GLX_SINGLE_HDR_SIZE, tag);
}
int __glXDispSwap_GetConvolutionFilterEXT(__GLXclientState *cl, GLbyte *pc)
{
const GLXContextTag tag = __GLX_GET_VENDPRIV_CONTEXT_TAG(pc);
return GetConvolutionFilter(cl, pc + __GLX_VENDPRIV_HDR_SIZE, tag);
}
static int GetHistogram(__GLXclientState *cl, GLbyte *pc, GLXContextTag tag)
{
GLint compsize;
GLenum format, type, target;
GLboolean swapBytes, reset;
__GLXcontext *cx;
ClientPtr client = cl->client;
int error;
__GLX_DECLARE_SWAP_VARIABLES;
char *answer, answerBuffer[200];
GLint width=0;
cx = __glXForceCurrent(cl, tag, &error);
if (!cx) {
return error;
}
__GLX_SWAP_INT(pc+0);
__GLX_SWAP_INT(pc+4);
__GLX_SWAP_INT(pc+8);
format = *(GLenum *)(pc + 4);
type = *(GLenum *)(pc + 8);
target = *(GLenum *)(pc + 0);
swapBytes = *(GLboolean *)(pc + 12);
reset = *(GLboolean *)(pc + 13);
CALL_GetHistogramParameteriv( GET_DISPATCH(), (target, GL_HISTOGRAM_WIDTH, &width) );
/*
* The one query above might fail if we're in a state where queries
* are illegal, but then width would still be zero anyway.
*/
compsize = __glGetTexImage_size(target,1,format,type,width,1,1);
if (compsize < 0) compsize = 0;
CALL_PixelStorei( GET_DISPATCH(), (GL_PACK_SWAP_BYTES, !swapBytes) );
__GLX_GET_ANSWER_BUFFER(answer,cl,compsize,1);
__glXClearErrorOccured();
CALL_GetHistogram( GET_DISPATCH(), (target, reset, format, type, answer) );
if (__glXErrorOccured()) {
__GLX_BEGIN_REPLY(0);
__GLX_SWAP_REPLY_HEADER();
} else {
__GLX_BEGIN_REPLY(compsize);
__GLX_SWAP_REPLY_HEADER();
__GLX_SWAP_INT(&width);
((xGLXGetHistogramReply *)&__glXReply)->width = width;
__GLX_SEND_VOID_ARRAY(compsize);
}
return Success;
}
int __glXDispSwap_GetHistogram(__GLXclientState *cl, GLbyte *pc)
{
const GLXContextTag tag = __GLX_GET_SINGLE_CONTEXT_TAG(pc);
return GetHistogram(cl, pc + __GLX_SINGLE_HDR_SIZE, tag);
}
int __glXDispSwap_GetHistogramEXT(__GLXclientState *cl, GLbyte *pc)
{
const GLXContextTag tag = __GLX_GET_VENDPRIV_CONTEXT_TAG(pc);
return GetHistogram(cl, pc + __GLX_VENDPRIV_HDR_SIZE, tag);
}
static int GetMinmax(__GLXclientState *cl, GLbyte *pc, GLXContextTag tag)
{
GLint compsize;
GLenum format, type, target;
GLboolean swapBytes, reset;
__GLXcontext *cx;
ClientPtr client = cl->client;
int error;
__GLX_DECLARE_SWAP_VARIABLES;
char *answer, answerBuffer[200];
cx = __glXForceCurrent(cl, tag, &error);
if (!cx) {
return error;
}
__GLX_SWAP_INT(pc+0);
__GLX_SWAP_INT(pc+4);
__GLX_SWAP_INT(pc+8);
format = *(GLenum *)(pc + 4);
type = *(GLenum *)(pc + 8);
target = *(GLenum *)(pc + 0);
swapBytes = *(GLboolean *)(pc + 12);
reset = *(GLboolean *)(pc + 13);
compsize = __glGetTexImage_size(target,1,format,type,2,1,1);
if (compsize < 0) compsize = 0;
CALL_PixelStorei( GET_DISPATCH(), (GL_PACK_SWAP_BYTES, !swapBytes) );
__GLX_GET_ANSWER_BUFFER(answer,cl,compsize,1);
__glXClearErrorOccured();
CALL_GetMinmax( GET_DISPATCH(), (target, reset, format, type, answer) );
if (__glXErrorOccured()) {
__GLX_BEGIN_REPLY(0);
__GLX_SWAP_REPLY_HEADER();
} else {
__GLX_BEGIN_REPLY(compsize);
__GLX_SWAP_REPLY_HEADER();
__GLX_SEND_VOID_ARRAY(compsize);
}
return Success;
}
int __glXDispSwap_GetMinmax(__GLXclientState *cl, GLbyte *pc)
{
const GLXContextTag tag = __GLX_GET_SINGLE_CONTEXT_TAG(pc);
return GetMinmax(cl, pc + __GLX_SINGLE_HDR_SIZE, tag);
}
int __glXDispSwap_GetMinmaxEXT(__GLXclientState *cl, GLbyte *pc)
{
const GLXContextTag tag = __GLX_GET_VENDPRIV_CONTEXT_TAG(pc);
return GetMinmax(cl, pc + __GLX_VENDPRIV_HDR_SIZE, tag);
}
static int GetColorTable(__GLXclientState *cl, GLbyte *pc, GLXContextTag tag)
{
GLint compsize;
GLenum format, type, target;
GLboolean swapBytes;
__GLXcontext *cx;
ClientPtr client = cl->client;
int error;
__GLX_DECLARE_SWAP_VARIABLES;
char *answer, answerBuffer[200];
GLint width=0;
cx = __glXForceCurrent(cl, tag, &error);
if (!cx) {
return error;
}
__GLX_SWAP_INT(pc+0);
__GLX_SWAP_INT(pc+4);
__GLX_SWAP_INT(pc+8);
format = *(GLenum *)(pc + 4);
type = *(GLenum *)(pc + 8);
target = *(GLenum *)(pc + 0);
swapBytes = *(GLboolean *)(pc + 12);
CALL_GetColorTableParameteriv( GET_DISPATCH(), (target, GL_COLOR_TABLE_WIDTH, &width) );
/*
* The one query above might fail if we're in a state where queries
* are illegal, but then width would still be zero anyway.
*/
compsize = __glGetTexImage_size(target,1,format,type,width,1,1);
if (compsize < 0) compsize = 0;
CALL_PixelStorei( GET_DISPATCH(), (GL_PACK_SWAP_BYTES, !swapBytes) );
__GLX_GET_ANSWER_BUFFER(answer,cl,compsize,1);
__glXClearErrorOccured();
CALL_GetColorTable( GET_DISPATCH(), (
*(GLenum *)(pc + 0),
*(GLenum *)(pc + 4),
*(GLenum *)(pc + 8),
answer
) );
if (__glXErrorOccured()) {
__GLX_BEGIN_REPLY(0);
__GLX_SWAP_REPLY_HEADER();
} else {
__GLX_BEGIN_REPLY(compsize);
__GLX_SWAP_REPLY_HEADER();
__GLX_SWAP_INT(&width);
((xGLXGetColorTableReply *)&__glXReply)->width = width;
__GLX_SEND_VOID_ARRAY(compsize);
}
return Success;
}
int __glXDispSwap_GetColorTable(__GLXclientState *cl, GLbyte *pc)
{
const GLXContextTag tag = __GLX_GET_SINGLE_CONTEXT_TAG(pc);
return GetColorTable(cl, pc + __GLX_SINGLE_HDR_SIZE, tag);
}
int __glXDispSwap_GetColorTableSGI(__GLXclientState *cl, GLbyte *pc)
{
const GLXContextTag tag = __GLX_GET_VENDPRIV_CONTEXT_TAG(pc);
return GetColorTable(cl, pc + __GLX_VENDPRIV_HDR_SIZE, tag);
}
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