wineps: Buffer data sent to printer port.

dlls/wineps.drv/escape.c

@@ -38,13 +38,41 @@
 
 WINE_DEFAULT_DEBUG_CHANNEL(psdrv);
 
+BOOL flush_spool( print_ctx *ctx )
+{
+    DWORD written;
+
+    if (ctx->job.data_cnt)
+    {
+        if (!WritePrinter(ctx->job.hprinter, ctx->job.data, ctx->job.data_cnt, &written) ||
+                written != ctx->job.data_cnt)
+            return FALSE;
+    }
+    ctx->job.data_cnt = 0;
+    return TRUE;
+}
+
 DWORD write_spool( print_ctx *ctx, const void *data, DWORD num )
 {
     DWORD written;
 
-    if (!WritePrinter(ctx->job.hprinter, (LPBYTE) data, num, &written) || (written != num))
-        return SP_OUTOFDISK;
+    if (ctx->job.data_cnt + num > ARRAY_SIZE(ctx->job.data))
+    {
+        if (!flush_spool(ctx))
+            return SP_OUTOFDISK;
+    }
 
+    if (ctx->job.data_cnt + num > ARRAY_SIZE(ctx->job.data))
+    {
+        if (!WritePrinter(ctx->job.hprinter, (LPBYTE) data, num, &written) ||
+                written != num)
+            return SP_OUTOFDISK;
+    }
+    else
+    {
+        memcpy(ctx->job.data + ctx->job.data_cnt, data, num);
+        ctx->job.data_cnt += num;
+    }
     return num;
 }
 

dlls/wineps.drv/ps.c

@@ -502,7 +502,7 @@ INT PSDRV_WriteFooter( print_ctx *ctx )
 
     sprintf(buf, psfooter, ctx->job.PageNo);
 
-    if( write_spool( ctx, buf, strlen(buf) ) != strlen(buf) ) {
+    if( write_spool( ctx, buf, strlen(buf) ) != strlen(buf) || !flush_spool(ctx) ) {
         WARN("WriteSpool error\n");
         ret = 0;
     }

dlls/wineps.drv/psdrv.h

@@ -352,6 +352,8 @@ typedef struct {
     INT			PageNo;
     BOOL                quiet;          /* Don't actually output anything */
     enum passthrough    passthrough_state;
+    BYTE                data[4096];
+    int                 data_cnt;
 } JOB;
 
 typedef struct
@@ -519,7 +521,8 @@ extern BOOL PSDRV_WriteSetDownloadFont(print_ctx *ctx, BOOL vertical);
 extern BOOL PSDRV_WriteDownloadGlyphShow(print_ctx *ctx, const WORD *glyphs, UINT count);
 extern BOOL PSDRV_EmptyDownloadList(print_ctx *ctx, BOOL write_undef);
 
-extern DWORD write_spool( print_ctx *ctx, const void *data, DWORD num );
+extern BOOL flush_spool(print_ctx *ctx);
+extern DWORD write_spool(print_ctx *ctx, const void *data, DWORD num);
 
 #define MAX_G_NAME 31 /* max length of PS glyph name */
 extern void get_glyph_name(HDC hdc, WORD index, char *name);