GLint
__glGetBooleanv_variable_size( GLenum e )
{
if ( e == GL_COMPRESSED_TEXTURE_FORMATS ) {
GLint temp;
CALL_GetIntegerv( GET_DISPATCH(),
(GL_NUM_COMPRESSED_TEXTURE_FORMATS, & temp) );
return temp;
}
else {
return 0;
}
}
int __glXDisp_UseXFont(__GLXclientState *cl, GLbyte *pc)
{
ClientPtr client = cl->client;
xGLXUseXFontReq *req;
FontPtr pFont;
GC *pGC;
GLuint currentListIndex;
__GLXcontext *cx;
int error;
req = (xGLXUseXFontReq *) pc;
cx = __glXForceCurrent(cl, req->contextTag, &error);
if (!cx) {
return error;
}
CALL_GetIntegerv( GET_DISPATCH(), (GL_LIST_INDEX, (GLint*) ¤tListIndex) );
if (currentListIndex != 0) {
/*
** A display list is currently being made. It is an error
** to try to make a font during another lists construction.
*/
client->errorValue = cx->id;
return __glXError(GLXBadContextState);
}
/*
** Font can actually be either the ID of a font or the ID of a GC
** containing a font.
*/
error = dixLookupResourceByType((pointer *)&pFont,
req->font, RT_FONT,
client, DixReadAccess);
if (error != Success) {
error = dixLookupResourceByType((pointer *)&pGC,
req->font, RT_GC,
client, DixReadAccess);
if (error != Success) {
client->errorValue = req->font;
return error == BadGC ? BadFont : error;
}
pFont = pGC->font;
}
return MakeBitmapsFromFont(pFont, req->first, req->count,
req->listBase);
}
int __glXUseXFont(__GLXclientState *cl, GLbyte *pc)
{
ClientPtr client = cl->client;
xGLXUseXFontReq *req;
FontPtr pFont;
GC *pGC;
GLuint currentListIndex;
__GLXcontext *cx;
int error;
req = (xGLXUseXFontReq *) pc;
cx = __glXForceCurrent(cl, req->contextTag, &error);
if (!cx) {
return error;
}
CALL_GetIntegerv( GET_DISPATCH(), (GL_LIST_INDEX, (GLint*) ¤tListIndex) );
if (currentListIndex != 0) {
/*
** A display list is currently being made. It is an error
** to try to make a font during another lists construction.
*/
client->errorValue = cx->id;
return __glXBadContextState;
}
/*
** Font can actually be either the ID of a font or the ID of a GC
** containing a font.
*/
pFont = (FontPtr)LookupIDByType(req->font, RT_FONT);
if (!pFont) {
pGC = (GC *)LookupIDByType(req->font, RT_GC);
if (!pGC) {
client->errorValue = req->font;
return BadFont;
}
pFont = pGC->font;
}
return MakeBitmapsFromFont(pFont, req->first, req->count,
req->listBase);
}
int __glXDisp_RenderMode(__GLXclientState *cl, GLbyte *pc)
{
ClientPtr client;
xGLXRenderModeReply reply;
__GLXcontext *cx;
GLint nitems=0, retBytes=0, retval, newModeCheck;
GLubyte *retBuffer = NULL;
GLenum newMode;
int error;
cx = __glXForceCurrent(cl, __GLX_GET_SINGLE_CONTEXT_TAG(pc), &error);
if (!cx) {
return error;
}
pc += __GLX_SINGLE_HDR_SIZE;
newMode = *(GLenum*) pc;
retval = CALL_RenderMode( GET_DISPATCH(), (newMode) );
/* Check that render mode worked */
CALL_GetIntegerv( GET_DISPATCH(), (GL_RENDER_MODE, &newModeCheck) );
if (newModeCheck != newMode) {
/* Render mode change failed. Bail */
newMode = newModeCheck;
goto noChangeAllowed;
}
/*
** Render mode might have still failed if we get here. But in this
** case we can't really tell, nor does it matter. If it did fail, it
** will return 0, and thus we won't send any data across the wire.
*/
switch (cx->renderMode) {
case GL_RENDER:
cx->renderMode = newMode;
break;
case GL_FEEDBACK:
if (retval < 0) {
/* Overflow happened. Copy the entire buffer */
nitems = cx->feedbackBufSize;
} else {
nitems = retval;
}
retBytes = nitems * __GLX_SIZE_FLOAT32;
retBuffer = (GLubyte*) cx->feedbackBuf;
cx->renderMode = newMode;
break;
case GL_SELECT:
if (retval < 0) {
/* Overflow happened. Copy the entire buffer */
nitems = cx->selectBufSize;
} else {
GLuint *bp = cx->selectBuf;
GLint i;
/*
** Figure out how many bytes of data need to be sent. Parse
** the selection buffer to determine this fact as the
** return value is the number of hits, not the number of
** items in the buffer.
*/
nitems = 0;
i = retval;
while (--i >= 0) {
GLuint n;
/* Parse select data for this hit */
n = *bp;
bp += 3 + n;
}
nitems = bp - cx->selectBuf;
}
retBytes = nitems * __GLX_SIZE_CARD32;
retBuffer = (GLubyte*) cx->selectBuf;
cx->renderMode = newMode;
break;
}
/*
** First reply is the number of elements returned in the feedback or
** selection array, as per the API for glRenderMode itself.
*/
noChangeAllowed:;
client = cl->client;
reply.length = nitems;
reply.type = X_Reply;
reply.sequenceNumber = client->sequence;
reply.retval = retval;
reply.size = nitems;
reply.newMode = newMode;
WriteToClient(client, sz_xGLXRenderModeReply, (char *)&reply);
if (retBytes) {
WriteToClient(client, retBytes, (char *)retBuffer);
}
return Success;
}
