stw_context.c revision 7f41f5447c8f9113c8956901e1c5fff6081ecd94 
1/**************************************************************************
2 *
3 * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28#include <windows.h>
29
30#include "main/mtypes.h"
31#include "main/context.h"
32#include "pipe/p_compiler.h"
33#include "pipe/p_context.h"
34#include "state_tracker/st_context.h"
35#include "state_tracker/st_public.h"
36
37#include "stw_icd.h"
38#include "stw_device.h"
39#include "stw_winsys.h"
40#include "stw_framebuffer.h"
41#include "stw_pixelformat.h"
42#include "stw_context.h"
43#include "stw_tls.h"
44
45
46static INLINE struct stw_context *
47stw_context(GLcontext *glctx)
48{
49   if(!glctx)
50      return NULL;
51   assert(glctx->DriverCtx);
52   return (struct stw_context *)glctx->DriverCtx;
53}
54
55static INLINE struct stw_context *
56stw_current_context(void)
57{
58   /* We must check if multiple threads are being used or GET_CURRENT_CONTEXT
59    * might return the current context of the thread first seen. */
60   _glapi_check_multithread();
61
62   {
63      GET_CURRENT_CONTEXT( glctx );
64      return stw_context(glctx);
65   }
66}
67
68BOOL APIENTRY
69DrvCopyContext(
70   DHGLRC dhrcSource,
71   DHGLRC dhrcDest,
72   UINT fuMask )
73{
74   struct stw_context *src;
75   struct stw_context *dst;
76   BOOL ret = FALSE;
77
78   pipe_mutex_lock( stw_dev->ctx_mutex );
79
80   src = stw_lookup_context_locked( dhrcSource );
81   dst = stw_lookup_context_locked( dhrcDest );
82
83   if (src && dst) {
84      /* FIXME */
85      assert(0);
86      (void) src;
87      (void) dst;
88      (void) fuMask;
89   }
90
91   pipe_mutex_unlock( stw_dev->ctx_mutex );
92
93   return ret;
94}
95
96BOOL APIENTRY
97DrvShareLists(
98   DHGLRC dhglrc1,
99   DHGLRC dhglrc2 )
100{
101   struct stw_context *ctx1;
102   struct stw_context *ctx2;
103   BOOL ret = FALSE;
104
105   pipe_mutex_lock( stw_dev->ctx_mutex );
106
107   ctx1 = stw_lookup_context_locked( dhglrc1 );
108   ctx2 = stw_lookup_context_locked( dhglrc2 );
109
110   if (ctx1 && ctx2 &&
111       ctx1->iPixelFormat == ctx2->iPixelFormat) {
112      ret = _mesa_share_state(ctx2->st->ctx, ctx1->st->ctx);
113   }
114
115   pipe_mutex_unlock( stw_dev->ctx_mutex );
116
117   return ret;
118}
119
120static void
121stw_viewport(GLcontext * glctx, GLint x, GLint y,
122             GLsizei width, GLsizei height)
123{
124   struct stw_context *ctx = (struct stw_context *)glctx->DriverCtx;
125   struct stw_framebuffer *fb;
126
127   fb = stw_framebuffer_from_hdc( ctx->hdc );
128   if(fb) {
129      stw_framebuffer_update(fb);
130      stw_framebuffer_release(fb);
131   }
132}
133
134DHGLRC APIENTRY
135DrvCreateContext(
136   HDC hdc )
137{
138   return DrvCreateLayerContext( hdc, 0 );
139}
140
141DHGLRC APIENTRY
142DrvCreateLayerContext(
143   HDC hdc,
144   INT iLayerPlane )
145{
146   int iPixelFormat;
147   const struct stw_pixelformat_info *pfi;
148   GLvisual visual;
149   struct stw_context *ctx = NULL;
150   struct pipe_context *pipe = NULL;
151
152   if(!stw_dev)
153      return 0;
154
155   if (iLayerPlane != 0)
156      return 0;
157
158   iPixelFormat = GetPixelFormat(hdc);
159   if(!iPixelFormat)
160      return 0;
161
162   pfi = stw_pixelformat_get_info( iPixelFormat - 1 );
163   stw_pixelformat_visual(&visual, pfi);
164
165   ctx = CALLOC_STRUCT( stw_context );
166   if (ctx == NULL)
167      goto no_ctx;
168
169   ctx->hdc = hdc;
170   ctx->iPixelFormat = iPixelFormat;
171
172   /* priv == hdc, pass to stw_flush_frontbuffer as context_private
173    */
174   pipe = stw_dev->screen->context_create( stw_dev->screen, hdc );
175   if (pipe == NULL)
176      goto no_pipe;
177
178   ctx->st = st_create_context( pipe, &visual, NULL );
179   if (ctx->st == NULL)
180      goto no_st_ctx;
181
182   ctx->st->ctx->DriverCtx = ctx;
183   ctx->st->ctx->Driver.Viewport = stw_viewport;
184
185   pipe_mutex_lock( stw_dev->ctx_mutex );
186   ctx->dhglrc = handle_table_add(stw_dev->ctx_table, ctx);
187   pipe_mutex_unlock( stw_dev->ctx_mutex );
188   if (!ctx->dhglrc)
189      goto no_hglrc;
190
191   return ctx->dhglrc;
192
193no_hglrc:
194   st_destroy_context(ctx->st);
195   goto no_pipe; /* st_context_destroy already destroys pipe */
196no_st_ctx:
197   pipe->destroy( pipe );
198no_pipe:
199   FREE(ctx);
200no_ctx:
201   return 0;
202}
203
204BOOL APIENTRY
205DrvDeleteContext(
206   DHGLRC dhglrc )
207{
208   struct stw_context *ctx ;
209   BOOL ret = FALSE;
210
211   if (!stw_dev)
212      return FALSE;
213
214   pipe_mutex_lock( stw_dev->ctx_mutex );
215   ctx = stw_lookup_context_locked(dhglrc);
216   handle_table_remove(stw_dev->ctx_table, dhglrc);
217   pipe_mutex_unlock( stw_dev->ctx_mutex );
218
219   if (ctx) {
220      struct stw_context *curctx = stw_current_context();
221
222      /* Unbind current if deleting current context. */
223      if (curctx == ctx)
224         st_make_current( NULL, NULL, NULL );
225
226      st_destroy_context(ctx->st);
227      FREE(ctx);
228
229      ret = TRUE;
230   }
231
232   return ret;
233}
234
235BOOL APIENTRY
236DrvReleaseContext(
237   DHGLRC dhglrc )
238{
239   struct stw_context *ctx;
240
241   if (!stw_dev)
242      return FALSE;
243
244   pipe_mutex_lock( stw_dev->ctx_mutex );
245   ctx = stw_lookup_context_locked( dhglrc );
246   pipe_mutex_unlock( stw_dev->ctx_mutex );
247
248   if (!ctx)
249      return FALSE;
250
251   /* The expectation is that ctx is the same context which is
252    * current for this thread.  We should check that and return False
253    * if not the case.
254    */
255   if (ctx != stw_current_context())
256      return FALSE;
257
258   if (stw_make_current( NULL, 0 ) == FALSE)
259      return FALSE;
260
261   return TRUE;
262}
263
264
265DHGLRC
266stw_get_current_context( void )
267{
268   struct stw_context *ctx;
269
270   ctx = stw_current_context();
271   if(!ctx)
272      return 0;
273
274   return ctx->dhglrc;
275}
276
277HDC
278stw_get_current_dc( void )
279{
280   struct stw_context *ctx;
281
282   ctx = stw_current_context();
283   if(!ctx)
284      return NULL;
285
286   return ctx->hdc;
287}
288
289BOOL
290stw_make_current(
291   HDC hdc,
292   DHGLRC dhglrc )
293{
294   struct stw_context *curctx = NULL;
295   struct stw_context *ctx = NULL;
296   struct stw_framebuffer *fb = NULL;
297
298   if (!stw_dev)
299      goto fail;
300
301   curctx = stw_current_context();
302   if (curctx != NULL) {
303      if (curctx->dhglrc != dhglrc)
304	 st_flush(curctx->st, PIPE_FLUSH_RENDER_CACHE, NULL);
305
306      /* Return if already current. */
307      if (curctx->dhglrc == dhglrc && curctx->hdc == hdc) {
308         ctx = curctx;
309         fb = stw_framebuffer_from_hdc( hdc );
310         goto success;
311      }
312   }
313
314   if (hdc == NULL || dhglrc == 0) {
315      return st_make_current( NULL, NULL, NULL );
316   }
317
318   pipe_mutex_lock( stw_dev->ctx_mutex );
319   ctx = stw_lookup_context_locked( dhglrc );
320   pipe_mutex_unlock( stw_dev->ctx_mutex );
321   if(!ctx)
322      goto fail;
323
324   fb = stw_framebuffer_from_hdc( hdc );
325   if(!fb) {
326      /* Applications should call SetPixelFormat before creating a context,
327       * but not all do, and the opengl32 runtime seems to use a default pixel
328       * format in some cases, so we must create a framebuffer for those here
329       */
330      int iPixelFormat = GetPixelFormat(hdc);
331      if(iPixelFormat)
332         fb = stw_framebuffer_create( hdc, iPixelFormat );
333      if(!fb)
334         goto fail;
335   }
336
337   if(fb->iPixelFormat != ctx->iPixelFormat)
338      goto fail;
339
340   /* Lazy allocation of the frame buffer */
341   if(!stw_framebuffer_allocate(fb))
342      goto fail;
343
344   /* Bind the new framebuffer */
345   ctx->hdc = hdc;
346
347   /* pass to stw_flush_frontbuffer as context_private */
348   ctx->st->pipe->priv = hdc;
349
350   if(!st_make_current( ctx->st, fb->stfb, fb->stfb ))
351      goto fail;
352
353success:
354   assert(fb);
355   if(fb) {
356      stw_framebuffer_update(fb);
357      stw_framebuffer_release(fb);
358   }
359
360   return TRUE;
361
362fail:
363   if(fb)
364      stw_framebuffer_release(fb);
365   st_make_current( NULL, NULL, NULL );
366   return FALSE;
367}
368
369/**
370 * Although WGL allows different dispatch entrypoints per context
371 */
372static const GLCLTPROCTABLE cpt =
373{
374   OPENGL_VERSION_110_ENTRIES,
375   {
376      &glNewList,
377      &glEndList,
378      &glCallList,
379      &glCallLists,
380      &glDeleteLists,
381      &glGenLists,
382      &glListBase,
383      &glBegin,
384      &glBitmap,
385      &glColor3b,
386      &glColor3bv,
387      &glColor3d,
388      &glColor3dv,
389      &glColor3f,
390      &glColor3fv,
391      &glColor3i,
392      &glColor3iv,
393      &glColor3s,
394      &glColor3sv,
395      &glColor3ub,
396      &glColor3ubv,
397      &glColor3ui,
398      &glColor3uiv,
399      &glColor3us,
400      &glColor3usv,
401      &glColor4b,
402      &glColor4bv,
403      &glColor4d,
404      &glColor4dv,
405      &glColor4f,
406      &glColor4fv,
407      &glColor4i,
408      &glColor4iv,
409      &glColor4s,
410      &glColor4sv,
411      &glColor4ub,
412      &glColor4ubv,
413      &glColor4ui,
414      &glColor4uiv,
415      &glColor4us,
416      &glColor4usv,
417      &glEdgeFlag,
418      &glEdgeFlagv,
419      &glEnd,
420      &glIndexd,
421      &glIndexdv,
422      &glIndexf,
423      &glIndexfv,
424      &glIndexi,
425      &glIndexiv,
426      &glIndexs,
427      &glIndexsv,
428      &glNormal3b,
429      &glNormal3bv,
430      &glNormal3d,
431      &glNormal3dv,
432      &glNormal3f,
433      &glNormal3fv,
434      &glNormal3i,
435      &glNormal3iv,
436      &glNormal3s,
437      &glNormal3sv,
438      &glRasterPos2d,
439      &glRasterPos2dv,
440      &glRasterPos2f,
441      &glRasterPos2fv,
442      &glRasterPos2i,
443      &glRasterPos2iv,
444      &glRasterPos2s,
445      &glRasterPos2sv,
446      &glRasterPos3d,
447      &glRasterPos3dv,
448      &glRasterPos3f,
449      &glRasterPos3fv,
450      &glRasterPos3i,
451      &glRasterPos3iv,
452      &glRasterPos3s,
453      &glRasterPos3sv,
454      &glRasterPos4d,
455      &glRasterPos4dv,
456      &glRasterPos4f,
457      &glRasterPos4fv,
458      &glRasterPos4i,
459      &glRasterPos4iv,
460      &glRasterPos4s,
461      &glRasterPos4sv,
462      &glRectd,
463      &glRectdv,
464      &glRectf,
465      &glRectfv,
466      &glRecti,
467      &glRectiv,
468      &glRects,
469      &glRectsv,
470      &glTexCoord1d,
471      &glTexCoord1dv,
472      &glTexCoord1f,
473      &glTexCoord1fv,
474      &glTexCoord1i,
475      &glTexCoord1iv,
476      &glTexCoord1s,
477      &glTexCoord1sv,
478      &glTexCoord2d,
479      &glTexCoord2dv,
480      &glTexCoord2f,
481      &glTexCoord2fv,
482      &glTexCoord2i,
483      &glTexCoord2iv,
484      &glTexCoord2s,
485      &glTexCoord2sv,
486      &glTexCoord3d,
487      &glTexCoord3dv,
488      &glTexCoord3f,
489      &glTexCoord3fv,
490      &glTexCoord3i,
491      &glTexCoord3iv,
492      &glTexCoord3s,
493      &glTexCoord3sv,
494      &glTexCoord4d,
495      &glTexCoord4dv,
496      &glTexCoord4f,
497      &glTexCoord4fv,
498      &glTexCoord4i,
499      &glTexCoord4iv,
500      &glTexCoord4s,
501      &glTexCoord4sv,
502      &glVertex2d,
503      &glVertex2dv,
504      &glVertex2f,
505      &glVertex2fv,
506      &glVertex2i,
507      &glVertex2iv,
508      &glVertex2s,
509      &glVertex2sv,
510      &glVertex3d,
511      &glVertex3dv,
512      &glVertex3f,
513      &glVertex3fv,
514      &glVertex3i,
515      &glVertex3iv,
516      &glVertex3s,
517      &glVertex3sv,
518      &glVertex4d,
519      &glVertex4dv,
520      &glVertex4f,
521      &glVertex4fv,
522      &glVertex4i,
523      &glVertex4iv,
524      &glVertex4s,
525      &glVertex4sv,
526      &glClipPlane,
527      &glColorMaterial,
528      &glCullFace,
529      &glFogf,
530      &glFogfv,
531      &glFogi,
532      &glFogiv,
533      &glFrontFace,
534      &glHint,
535      &glLightf,
536      &glLightfv,
537      &glLighti,
538      &glLightiv,
539      &glLightModelf,
540      &glLightModelfv,
541      &glLightModeli,
542      &glLightModeliv,
543      &glLineStipple,
544      &glLineWidth,
545      &glMaterialf,
546      &glMaterialfv,
547      &glMateriali,
548      &glMaterialiv,
549      &glPointSize,
550      &glPolygonMode,
551      &glPolygonStipple,
552      &glScissor,
553      &glShadeModel,
554      &glTexParameterf,
555      &glTexParameterfv,
556      &glTexParameteri,
557      &glTexParameteriv,
558      &glTexImage1D,
559      &glTexImage2D,
560      &glTexEnvf,
561      &glTexEnvfv,
562      &glTexEnvi,
563      &glTexEnviv,
564      &glTexGend,
565      &glTexGendv,
566      &glTexGenf,
567      &glTexGenfv,
568      &glTexGeni,
569      &glTexGeniv,
570      &glFeedbackBuffer,
571      &glSelectBuffer,
572      &glRenderMode,
573      &glInitNames,
574      &glLoadName,
575      &glPassThrough,
576      &glPopName,
577      &glPushName,
578      &glDrawBuffer,
579      &glClear,
580      &glClearAccum,
581      &glClearIndex,
582      &glClearColor,
583      &glClearStencil,
584      &glClearDepth,
585      &glStencilMask,
586      &glColorMask,
587      &glDepthMask,
588      &glIndexMask,
589      &glAccum,
590      &glDisable,
591      &glEnable,
592      &glFinish,
593      &glFlush,
594      &glPopAttrib,
595      &glPushAttrib,
596      &glMap1d,
597      &glMap1f,
598      &glMap2d,
599      &glMap2f,
600      &glMapGrid1d,
601      &glMapGrid1f,
602      &glMapGrid2d,
603      &glMapGrid2f,
604      &glEvalCoord1d,
605      &glEvalCoord1dv,
606      &glEvalCoord1f,
607      &glEvalCoord1fv,
608      &glEvalCoord2d,
609      &glEvalCoord2dv,
610      &glEvalCoord2f,
611      &glEvalCoord2fv,
612      &glEvalMesh1,
613      &glEvalPoint1,
614      &glEvalMesh2,
615      &glEvalPoint2,
616      &glAlphaFunc,
617      &glBlendFunc,
618      &glLogicOp,
619      &glStencilFunc,
620      &glStencilOp,
621      &glDepthFunc,
622      &glPixelZoom,
623      &glPixelTransferf,
624      &glPixelTransferi,
625      &glPixelStoref,
626      &glPixelStorei,
627      &glPixelMapfv,
628      &glPixelMapuiv,
629      &glPixelMapusv,
630      &glReadBuffer,
631      &glCopyPixels,
632      &glReadPixels,
633      &glDrawPixels,
634      &glGetBooleanv,
635      &glGetClipPlane,
636      &glGetDoublev,
637      &glGetError,
638      &glGetFloatv,
639      &glGetIntegerv,
640      &glGetLightfv,
641      &glGetLightiv,
642      &glGetMapdv,
643      &glGetMapfv,
644      &glGetMapiv,
645      &glGetMaterialfv,
646      &glGetMaterialiv,
647      &glGetPixelMapfv,
648      &glGetPixelMapuiv,
649      &glGetPixelMapusv,
650      &glGetPolygonStipple,
651      &glGetString,
652      &glGetTexEnvfv,
653      &glGetTexEnviv,
654      &glGetTexGendv,
655      &glGetTexGenfv,
656      &glGetTexGeniv,
657      &glGetTexImage,
658      &glGetTexParameterfv,
659      &glGetTexParameteriv,
660      &glGetTexLevelParameterfv,
661      &glGetTexLevelParameteriv,
662      &glIsEnabled,
663      &glIsList,
664      &glDepthRange,
665      &glFrustum,
666      &glLoadIdentity,
667      &glLoadMatrixf,
668      &glLoadMatrixd,
669      &glMatrixMode,
670      &glMultMatrixf,
671      &glMultMatrixd,
672      &glOrtho,
673      &glPopMatrix,
674      &glPushMatrix,
675      &glRotated,
676      &glRotatef,
677      &glScaled,
678      &glScalef,
679      &glTranslated,
680      &glTranslatef,
681      &glViewport,
682      &glArrayElement,
683      &glBindTexture,
684      &glColorPointer,
685      &glDisableClientState,
686      &glDrawArrays,
687      &glDrawElements,
688      &glEdgeFlagPointer,
689      &glEnableClientState,
690      &glIndexPointer,
691      &glIndexub,
692      &glIndexubv,
693      &glInterleavedArrays,
694      &glNormalPointer,
695      &glPolygonOffset,
696      &glTexCoordPointer,
697      &glVertexPointer,
698      &glAreTexturesResident,
699      &glCopyTexImage1D,
700      &glCopyTexImage2D,
701      &glCopyTexSubImage1D,
702      &glCopyTexSubImage2D,
703      &glDeleteTextures,
704      &glGenTextures,
705      &glGetPointerv,
706      &glIsTexture,
707      &glPrioritizeTextures,
708      &glTexSubImage1D,
709      &glTexSubImage2D,
710      &glPopClientAttrib,
711      &glPushClientAttrib
712   }
713};
714
715PGLCLTPROCTABLE APIENTRY
716DrvSetContext(
717   HDC hdc,
718   DHGLRC dhglrc,
719   PFN_SETPROCTABLE pfnSetProcTable )
720{
721   PGLCLTPROCTABLE r = (PGLCLTPROCTABLE)&cpt;
722
723   if (!stw_make_current( hdc, dhglrc ))
724      r = NULL;
725
726   return r;
727}
728