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//bugs.freedesktop.org/show_bug.cgi?id=3001) attachment #2404 

(https://bugs.freedesktop.org/attachment.cgi?id=2404) Improve rendering
    performance when glXSwapBuffers()| or |XPutImage()| are called for the
    PostScript DDX via optimizing the codepath around
    |PsOut_OutImageBytes()|. Patch by Simon Toedt <simon.toedt@gmail.com>
    and Roland Mainz <roland.mainz@nrubsig.org>.
This commit is contained in:
Roland Mainz 2005-04-13 00:05:37 +00:00
parent f45208a7e9
commit ddfa6f00da
1 changed files with 56 additions and 19 deletions
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75
Xprint/ps/psout.c
View File

@ -309,16 +309,23 @@ static char *S_SetupDefs = "\
void
S_Flush(PsOutPtr self)
{
if( self->Buf[0] )
int len;
if( self->Buf[0] == '\0' )
return;
len = strlen(self->Buf);
/* Append a newline char ('\n') if there isn't one there already */
if( self->Buf[len-1] != '\n' )
{
if( self->Buf[strlen(self->Buf)-1]!='\n' ) strcat(self->Buf, "\n");
if (!ferror(self->Fp)) {
(void) fputs(self->Buf, self->Fp);
}
self->Buf[0] = '\0';
self->Buf[len++] = '\n';
self->Buf[len] = '\0';
}
(void)fwrite(self->Buf, len, 1, self->Fp);
self->Buf[0] = '\0';
}
static void
@ -356,12 +363,23 @@ S_OutNum(PsOutPtr self, float num)
{
int i;
char buf[64];
int len;
sprintf(buf, "%.3f", num);
/* Remove any zeros at the end */
for( i=strlen(buf)-1 ; buf[i]=='0' ; i-- ); buf[i+1] = '\0';
if( buf[strlen(buf)-1]=='.' ) buf[strlen(buf)-1] = '\0';
if( self->Buf[0] ) strcat(self->Buf, " ");
strcat(self->Buf, buf);
if( strlen(self->Buf)>70 ) S_Flush(self);
/* Remove '.' if it is the last character */
i = strlen(buf)-1; if( buf[i]=='.' ) buf[i] = '\0';
len = strlen(self->Buf);
if( len > 0 )
{
self->Buf[len++] = ' ';
self->Buf[len] = '\0';
}
strcpy(&self->Buf[len], buf);
if( (len+i)>70 ) S_Flush(self);
}
static void
@ -416,8 +434,13 @@ S_OutStr16(PsOutPtr self, unsigned short *txt, int txtl)
void
S_OutTok(PsOutPtr self, char *tok, int cr)
{
if( self->Buf[0] ) strcat(self->Buf, " ");
strcat(self->Buf, tok);
int len = strlen(self->Buf);
if( len > 0 )
{
self->Buf[len++] = ' ';
self->Buf[len] = '\0';
}
strcpy(&self->Buf[len], tok);
if( cr ) S_Flush(self);
}
@ -1475,15 +1498,29 @@ void
PsOut_OutImageBytes(PsOutPtr self, int nBytes, char *bytes)
{
int i;
char buf[5];
int b;
int len;
const char hex[] = { '0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
if( (!self->ImageFormat) || self->ImgSkip ) return;
len = strlen(self->Buf);
for( i=0 ; i<nBytes ; i++ )
{
if( self->RevImage ) sprintf(buf, "%02x", (int)(bytes[i]^0xFF)&0xFF);
else sprintf(buf, "%02x", (int)bytes[i]&0xFF);
strcat(self->Buf, buf);
if( strlen(self->Buf)>70 ) S_Flush(self);
if( self->RevImage ) b = (int)((bytes[i]^0xFF)&0xFF);
else b = (int)(bytes[i]&0xFF);
self->Buf[len++] = hex[(b&0xF0) >> 4];
self->Buf[len++] = hex[(b&0x0F)];
self->Buf[len] = '\0';
if( len>70 )
{
S_Flush(self);
len = 0;
}
}
}