diff options
Diffstat (limited to 'pxl')
-rw-r--r-- | pxl/pxgstate.c | 97 |
1 files changed, 95 insertions, 2 deletions
diff --git a/pxl/pxgstate.c b/pxl/pxgstate.c index 309cac4d7..644fe7bb0 100644 --- a/pxl/pxgstate.c +++ b/pxl/pxgstate.c @@ -22,6 +22,7 @@ #include "gsstruct.h" #include "pxoper.h" #include "pxstate.h" +#include "pxparse.h" #include "gdebug.h" #include "gsstate.h" #include "gscoord.h" @@ -410,12 +411,104 @@ pxPushGS(px_args_t *par, px_state_t *pxs) return code; } +/* To restore the interpreters to default state we assemble the + following pxl commands and execute them as a stream. + +ubyte 2 ColorSpace +SetColorSpace + +ubyte_array [ uint16 3 +0000 00 00 00 ... +] RGBColor +SetBrushSource + +uint16 0 CharAngle +SetCharAngle + +SetPageDefaultCTM +ubyte_array [ uint16 3 +0000 00 00 00 ... + +] RGBColor +SetPenSource + +ubyte 1 PenWidth +SetPenWidth + +ubyte 0 TxMode +SetSourceTxMode + +ubyte 0 TxMode +SetPatternTxMode + +ubyte 252 ROP3 +SetROP + +ubyte 0 LineCapStyle +SetLineCap + +ubyte 0 SolidLine +SetLineDash + +ubyte 0 LineJoinStyle +SetLineJoin + +uint16 10 MiterLength +SetMiterLimit + +real32_xy 0.000000 0.000000 CharScale +SetCharScale + +real32_xy 0.000000 0.000000 CharShear +SetCharShear + +ubyte 0 DeviceMatrix +SetHalftoneMethod + +ubyte 0 ClipMode +SetClipMode + +SetClipToPage + +NewPath + +ubyte 0 FillMode +SetFillMode + +*/ + +/* assembled (little endian) stream */ +static byte pxSetDefaultGSstr[] = { + 192,2,248,3,106,200,193,3,0,0,0,0,248,11,99,193, + 0,0,248,161,100,116,200,193,3,0,0,0,0,248,11,121,192,1,248,75,122,192, + 0,248,45,124,192,0,248,45,120,192,252,248,44,123,192,0,248,71,113,192, + 0,248,78,112,192,0,248,72,114,193,10,0,248,73,115,213,0,0,0,0,0,0,0,0, + 248,164,101,213,0,0,0,0,0,0,0,0,248,165,102,192,0,248,33,109,192,0,248, + 84,127,105,133,192,0,248,70,110 +}; + + const byte apxSetDefaultGS[] = {0, 0}; int pxSetDefaultGS(px_args_t *par, px_state_t *pxs) { - px_gstate_reset(pxs->pxgs); - return 0; + px_parser_state_t *pst = par->parser; + px_parser_state_t st; + stream_cursor_read r; + int code; + + st.memory = pxs->memory; + px_process_init(&st, false /* big_endian */); + + st.macro_state = pst->macro_state | ptsExecStream; + r.ptr = pxSetDefaultGSstr - 1; + r.limit = r.ptr + sizeof(pxSetDefaultGSstr); + + /* we don't expect this to fail */ + code = px_process(&st, pxs, &r); + + pst->macro_state = st.macro_state & ~ptsExecStream; + return code; } const byte apxSetClipReplace[] = { |