xenocara/xserver/glx/singlepixswap.c

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2006-11-26 11:13:41 -07:00
/*
* 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.
*/
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#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"
int
__glXDispSwap_ReadPixels(__GLXclientState * cl, GLbyte * pc)
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{
GLsizei width, height;
GLenum format, type;
GLboolean swapBytes, lsbFirst;
GLint compsize;
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__GLX_DECLARE_SWAP_VARIABLES;
__GLXcontext *cx;
ClientPtr client = cl->client;
int error;
char *answer, answerBuffer[200];
REQUEST_FIXED_SIZE(xGLXSingleReq, 28);
__GLX_SWAP_INT(&((xGLXSingleReq *) pc)->contextTag);
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cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error);
if (!cx) {
return error;
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}
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)
return BadLength;
glPixelStorei(GL_PACK_SWAP_BYTES, !swapBytes);
glPixelStorei(GL_PACK_LSB_FIRST, lsbFirst);
__GLX_GET_ANSWER_BUFFER(answer, cl, compsize, 1);
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__glXClearErrorOccured();
glReadPixels(*(GLint *) (pc + 0), *(GLint *) (pc + 4),
*(GLsizei *) (pc + 8), *(GLsizei *) (pc + 12),
*(GLenum *) (pc + 16), *(GLenum *) (pc + 20), answer);
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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);
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}
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cx->hasUnflushedCommands = GL_FALSE;
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return Success;
}
int
__glXDispSwap_GetTexImage(__GLXclientState * cl, GLbyte * pc)
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{
GLint level, compsize;
GLenum format, type, target;
GLboolean swapBytes;
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__GLX_DECLARE_SWAP_VARIABLES;
__GLXcontext *cx;
ClientPtr client = cl->client;
int error;
char *answer, answerBuffer[200];
GLint width = 0, height = 0, depth = 1;
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REQUEST_FIXED_SIZE(xGLXSingleReq, 20);
__GLX_SWAP_INT(&((xGLXSingleReq *) pc)->contextTag);
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cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error);
if (!cx) {
return error;
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}
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);
glGetTexLevelParameteriv(target, level, GL_TEXTURE_WIDTH, &width);
glGetTexLevelParameteriv(target, level, GL_TEXTURE_HEIGHT, &height);
if (target == GL_TEXTURE_3D) {
glGetTexLevelParameteriv(target, level, GL_TEXTURE_DEPTH, &depth);
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}
/*
* 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)
return BadLength;
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glPixelStorei(GL_PACK_SWAP_BYTES, !swapBytes);
__GLX_GET_ANSWER_BUFFER(answer, cl, compsize, 1);
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__glXClearErrorOccured();
glGetTexImage(*(GLenum *) (pc + 0), *(GLint *) (pc + 4),
*(GLenum *) (pc + 8), *(GLenum *) (pc + 12), answer);
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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);
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}
return Success;
}
int
__glXDispSwap_GetPolygonStipple(__GLXclientState * cl, GLbyte * pc)
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{
GLboolean lsbFirst;
__GLXcontext *cx;
ClientPtr client = cl->client;
int error;
GLubyte answerBuffer[200];
char *answer;
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__GLX_DECLARE_SWAP_VARIABLES;
REQUEST_FIXED_SIZE(xGLXSingleReq, 4);
__GLX_SWAP_INT(&((xGLXSingleReq *) pc)->contextTag);
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cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error);
if (!cx) {
return error;
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}
pc += __GLX_SINGLE_HDR_SIZE;
lsbFirst = *(GLboolean *) (pc + 0);
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glPixelStorei(GL_PACK_LSB_FIRST, lsbFirst);
__GLX_GET_ANSWER_BUFFER(answer, cl, 128, 1);
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__glXClearErrorOccured();
glGetPolygonStipple((GLubyte *) answer);
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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);
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}
return Success;
}
static int
GetSeparableFilter(__GLXclientState * cl, GLbyte * pc, GLXContextTag tag)
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{
GLint compsize, compsize2;
GLenum format, type, target;
GLboolean swapBytes;
__GLXcontext *cx;
ClientPtr client = cl->client;
int error;
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__GLX_DECLARE_SWAP_VARIABLES;
char *answer, answerBuffer[200];
GLint width = 0, height = 0;
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cx = __glXForceCurrent(cl, tag, &error);
if (!cx) {
return error;
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}
__GLX_SWAP_INT(pc + 0);
__GLX_SWAP_INT(pc + 4);
__GLX_SWAP_INT(pc + 8);
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format = *(GLenum *) (pc + 4);
type = *(GLenum *) (pc + 8);
target = *(GLenum *) (pc + 0);
swapBytes = *(GLboolean *) (pc + 12);
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/* target must be SEPARABLE_2D, however I guess we can let the GL
barf on this one.... */
glGetConvolutionParameteriv(target, GL_CONVOLUTION_WIDTH, &width);
glGetConvolutionParameteriv(target, GL_CONVOLUTION_HEIGHT, &height);
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/*
* 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);
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if ((compsize = safe_pad(compsize)) < 0)
return BadLength;
if ((compsize2 = safe_pad(compsize2)) < 0)
return BadLength;
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glPixelStorei(GL_PACK_SWAP_BYTES, !swapBytes);
__GLX_GET_ANSWER_BUFFER(answer, cl, safe_add(compsize, compsize2), 1);
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__glXClearErrorOccured();
glGetSeparableFilter(*(GLenum *) (pc + 0), *(GLenum *) (pc + 4),
*(GLenum *) (pc + 8), answer, answer + compsize, NULL);
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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);
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}
return Success;
}
int
__glXDispSwap_GetSeparableFilter(__GLXclientState * cl, GLbyte * pc)
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{
const GLXContextTag tag = __GLX_GET_SINGLE_CONTEXT_TAG(pc);
ClientPtr client = cl->client;
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REQUEST_FIXED_SIZE(xGLXSingleReq, 16);
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return GetSeparableFilter(cl, pc + __GLX_SINGLE_HDR_SIZE, tag);
}
int
__glXDispSwap_GetSeparableFilterEXT(__GLXclientState * cl, GLbyte * pc)
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{
const GLXContextTag tag = __GLX_GET_VENDPRIV_CONTEXT_TAG(pc);
ClientPtr client = cl->client;
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REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 16);
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return GetSeparableFilter(cl, pc + __GLX_VENDPRIV_HDR_SIZE, tag);
}
static int
GetConvolutionFilter(__GLXclientState * cl, GLbyte * pc, GLXContextTag tag)
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{
GLint compsize;
GLenum format, type, target;
GLboolean swapBytes;
__GLXcontext *cx;
ClientPtr client = cl->client;
int error;
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__GLX_DECLARE_SWAP_VARIABLES;
char *answer, answerBuffer[200];
GLint width = 0, height = 0;
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cx = __glXForceCurrent(cl, tag, &error);
if (!cx) {
return error;
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}
__GLX_SWAP_INT(pc + 0);
__GLX_SWAP_INT(pc + 4);
__GLX_SWAP_INT(pc + 8);
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format = *(GLenum *) (pc + 4);
type = *(GLenum *) (pc + 8);
target = *(GLenum *) (pc + 0);
swapBytes = *(GLboolean *) (pc + 12);
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glGetConvolutionParameteriv(target, GL_CONVOLUTION_WIDTH, &width);
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if (target == GL_CONVOLUTION_2D) {
height = 1;
}
else {
glGetConvolutionParameteriv(target, GL_CONVOLUTION_HEIGHT, &height);
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}
/*
* 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)
return BadLength;
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glPixelStorei(GL_PACK_SWAP_BYTES, !swapBytes);
__GLX_GET_ANSWER_BUFFER(answer, cl, compsize, 1);
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__glXClearErrorOccured();
glGetConvolutionFilter(*(GLenum *) (pc + 0), *(GLenum *) (pc + 4),
*(GLenum *) (pc + 8), answer);
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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);
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}
return Success;
}
int
__glXDispSwap_GetConvolutionFilter(__GLXclientState * cl, GLbyte * pc)
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{
const GLXContextTag tag = __GLX_GET_SINGLE_CONTEXT_TAG(pc);
ClientPtr client = cl->client;
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REQUEST_FIXED_SIZE(xGLXSingleReq, 16);
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return GetConvolutionFilter(cl, pc + __GLX_SINGLE_HDR_SIZE, tag);
}
int
__glXDispSwap_GetConvolutionFilterEXT(__GLXclientState * cl, GLbyte * pc)
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{
const GLXContextTag tag = __GLX_GET_VENDPRIV_CONTEXT_TAG(pc);
ClientPtr client = cl->client;
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REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 16);
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return GetConvolutionFilter(cl, pc + __GLX_VENDPRIV_HDR_SIZE, tag);
}
static int
GetHistogram(__GLXclientState * cl, GLbyte * pc, GLXContextTag tag)
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{
GLint compsize;
GLenum format, type, target;
GLboolean swapBytes, reset;
__GLXcontext *cx;
ClientPtr client = cl->client;
int error;
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__GLX_DECLARE_SWAP_VARIABLES;
char *answer, answerBuffer[200];
GLint width = 0;
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cx = __glXForceCurrent(cl, tag, &error);
if (!cx) {
return error;
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}
__GLX_SWAP_INT(pc + 0);
__GLX_SWAP_INT(pc + 4);
__GLX_SWAP_INT(pc + 8);
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format = *(GLenum *) (pc + 4);
type = *(GLenum *) (pc + 8);
target = *(GLenum *) (pc + 0);
swapBytes = *(GLboolean *) (pc + 12);
reset = *(GLboolean *) (pc + 13);
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glGetHistogramParameteriv(target, GL_HISTOGRAM_WIDTH, &width);
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/*
* 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)
return BadLength;
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glPixelStorei(GL_PACK_SWAP_BYTES, !swapBytes);
__GLX_GET_ANSWER_BUFFER(answer, cl, compsize, 1);
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__glXClearErrorOccured();
glGetHistogram(target, reset, format, type, answer);
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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);
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}
return Success;
}
int
__glXDispSwap_GetHistogram(__GLXclientState * cl, GLbyte * pc)
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{
const GLXContextTag tag = __GLX_GET_SINGLE_CONTEXT_TAG(pc);
ClientPtr client = cl->client;
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REQUEST_FIXED_SIZE(xGLXSingleReq, 16);
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return GetHistogram(cl, pc + __GLX_SINGLE_HDR_SIZE, tag);
}
int
__glXDispSwap_GetHistogramEXT(__GLXclientState * cl, GLbyte * pc)
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{
const GLXContextTag tag = __GLX_GET_VENDPRIV_CONTEXT_TAG(pc);
ClientPtr client = cl->client;
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REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 16);
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return GetHistogram(cl, pc + __GLX_VENDPRIV_HDR_SIZE, tag);
}
static int
GetMinmax(__GLXclientState * cl, GLbyte * pc, GLXContextTag tag)
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{
GLint compsize;
GLenum format, type, target;
GLboolean swapBytes, reset;
__GLXcontext *cx;
ClientPtr client = cl->client;
int error;
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__GLX_DECLARE_SWAP_VARIABLES;
char *answer, answerBuffer[200];
cx = __glXForceCurrent(cl, tag, &error);
if (!cx) {
return error;
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}
__GLX_SWAP_INT(pc + 0);
__GLX_SWAP_INT(pc + 4);
__GLX_SWAP_INT(pc + 8);
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format = *(GLenum *) (pc + 4);
type = *(GLenum *) (pc + 8);
target = *(GLenum *) (pc + 0);
swapBytes = *(GLboolean *) (pc + 12);
reset = *(GLboolean *) (pc + 13);
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compsize = __glGetTexImage_size(target, 1, format, type, 2, 1, 1);
if (compsize < 0)
return BadLength;
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glPixelStorei(GL_PACK_SWAP_BYTES, !swapBytes);
__GLX_GET_ANSWER_BUFFER(answer, cl, compsize, 1);
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__glXClearErrorOccured();
glGetMinmax(target, reset, format, type, answer);
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if (__glXErrorOccured()) {
__GLX_BEGIN_REPLY(0);
__GLX_SWAP_REPLY_HEADER();
}
else {
__GLX_BEGIN_REPLY(compsize);
__GLX_SWAP_REPLY_HEADER();
__GLX_SEND_VOID_ARRAY(compsize);
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}
return Success;
}
int
__glXDispSwap_GetMinmax(__GLXclientState * cl, GLbyte * pc)
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{
const GLXContextTag tag = __GLX_GET_SINGLE_CONTEXT_TAG(pc);
ClientPtr client = cl->client;
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REQUEST_FIXED_SIZE(xGLXSingleReq, 16);
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return GetMinmax(cl, pc + __GLX_SINGLE_HDR_SIZE, tag);
}
int
__glXDispSwap_GetMinmaxEXT(__GLXclientState * cl, GLbyte * pc)
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{
const GLXContextTag tag = __GLX_GET_VENDPRIV_CONTEXT_TAG(pc);
ClientPtr client = cl->client;
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REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 16);
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return GetMinmax(cl, pc + __GLX_VENDPRIV_HDR_SIZE, tag);
}
static int
GetColorTable(__GLXclientState * cl, GLbyte * pc, GLXContextTag tag)
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{
GLint compsize;
GLenum format, type, target;
GLboolean swapBytes;
__GLXcontext *cx;
ClientPtr client = cl->client;
int error;
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__GLX_DECLARE_SWAP_VARIABLES;
char *answer, answerBuffer[200];
GLint width = 0;
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cx = __glXForceCurrent(cl, tag, &error);
if (!cx) {
return error;
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}
__GLX_SWAP_INT(pc + 0);
__GLX_SWAP_INT(pc + 4);
__GLX_SWAP_INT(pc + 8);
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format = *(GLenum *) (pc + 4);
type = *(GLenum *) (pc + 8);
target = *(GLenum *) (pc + 0);
swapBytes = *(GLboolean *) (pc + 12);
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glGetColorTableParameteriv(target, GL_COLOR_TABLE_WIDTH, &width);
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/*
* 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)
return BadLength;
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glPixelStorei(GL_PACK_SWAP_BYTES, !swapBytes);
__GLX_GET_ANSWER_BUFFER(answer, cl, compsize, 1);
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__glXClearErrorOccured();
glGetColorTable(*(GLenum *) (pc + 0), *(GLenum *) (pc + 4),
*(GLenum *) (pc + 8), answer);
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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);
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}
return Success;
}
int
__glXDispSwap_GetColorTable(__GLXclientState * cl, GLbyte * pc)
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{
const GLXContextTag tag = __GLX_GET_SINGLE_CONTEXT_TAG(pc);
ClientPtr client = cl->client;
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REQUEST_FIXED_SIZE(xGLXSingleReq, 16);
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return GetColorTable(cl, pc + __GLX_SINGLE_HDR_SIZE, tag);
}
int
__glXDispSwap_GetColorTableSGI(__GLXclientState * cl, GLbyte * pc)
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{
const GLXContextTag tag = __GLX_GET_VENDPRIV_CONTEXT_TAG(pc);
ClientPtr client = cl->client;
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REQUEST_FIXED_SIZE(xGLXVendorPrivateReq, 16);
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return GetColorTable(cl, pc + __GLX_VENDPRIV_HDR_SIZE, tag);
}