intel_screen.c revision 3566bc7584475daa852f4d5735a81a28c032297d 
1/**************************************************************************
2 *
3 * Copyright 2003 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 "main/glheader.h"
29#include "main/context.h"
30#include "main/framebuffer.h"
31#include "main/renderbuffer.h"
32
33#include "utils.h"
34#include "vblank.h"
35#include "xmlpool.h"
36
37#include "intel_batchbuffer.h"
38#include "intel_buffers.h"
39#include "intel_bufmgr.h"
40#include "intel_chipset.h"
41#include "intel_extensions.h"
42#include "intel_fbo.h"
43#include "intel_regions.h"
44#include "intel_swapbuffers.h"
45#include "intel_screen.h"
46#include "intel_span.h"
47#include "intel_tex.h"
48
49#include "i915_drm.h"
50#include "i830_dri.h"
51
52#define DRI_CONF_TEXTURE_TILING(def) \
53	DRI_CONF_OPT_BEGIN(texture_tiling, bool, def)		\
54		DRI_CONF_DESC(en, "Enable texture tiling")	\
55	DRI_CONF_OPT_END					\
56
57PUBLIC const char __driConfigOptions[] =
58   DRI_CONF_BEGIN
59   DRI_CONF_SECTION_PERFORMANCE
60      DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_ALWAYS_SYNC)
61      /* Options correspond to DRI_CONF_BO_REUSE_DISABLED,
62       * DRI_CONF_BO_REUSE_ALL
63       */
64      DRI_CONF_OPT_BEGIN_V(bo_reuse, enum, 1, "0:1")
65	 DRI_CONF_DESC_BEGIN(en, "Buffer object reuse")
66	    DRI_CONF_ENUM(0, "Disable buffer object reuse")
67	    DRI_CONF_ENUM(1, "Enable reuse of all sizes of buffer objects")
68	 DRI_CONF_DESC_END
69      DRI_CONF_OPT_END
70
71#ifdef I915
72     DRI_CONF_TEXTURE_TILING(false)
73#else
74     DRI_CONF_TEXTURE_TILING(true)
75#endif
76
77      DRI_CONF_OPT_BEGIN(early_z, bool, false)
78	 DRI_CONF_DESC(en, "Enable early Z in classic mode (unstable, 945-only).")
79      DRI_CONF_OPT_END
80
81      DRI_CONF_OPT_BEGIN(fragment_shader, bool, false)
82	 DRI_CONF_DESC(en, "Enable limited ARB_fragment_shader support on 915/945.")
83      DRI_CONF_OPT_END
84
85   DRI_CONF_SECTION_END
86   DRI_CONF_SECTION_QUALITY
87      DRI_CONF_FORCE_S3TC_ENABLE(false)
88      DRI_CONF_ALLOW_LARGE_TEXTURES(2)
89   DRI_CONF_SECTION_END
90   DRI_CONF_SECTION_DEBUG
91     DRI_CONF_NO_RAST(false)
92     DRI_CONF_ALWAYS_FLUSH_BATCH(false)
93     DRI_CONF_ALWAYS_FLUSH_CACHE(false)
94
95      DRI_CONF_OPT_BEGIN(stub_occlusion_query, bool, false)
96	 DRI_CONF_DESC(en, "Enable stub ARB_occlusion_query support on 915/945.")
97      DRI_CONF_OPT_END
98   DRI_CONF_SECTION_END
99DRI_CONF_END;
100
101const GLuint __driNConfigOptions = 11;
102
103#ifdef USE_NEW_INTERFACE
104static PFNGLXCREATECONTEXTMODES create_context_modes = NULL;
105#endif /*USE_NEW_INTERFACE */
106
107/**
108 * Map all the memory regions described by the screen.
109 * \return GL_TRUE if success, GL_FALSE if error.
110 */
111GLboolean
112intelMapScreenRegions(__DRIscreen * sPriv)
113{
114   intelScreenPrivate *intelScreen = (intelScreenPrivate *) sPriv->private;
115
116   if (0)
117      _mesa_printf("TEX 0x%08x ", intelScreen->tex.handle);
118   if (intelScreen->tex.size != 0) {
119      if (drmMap(sPriv->fd,
120		 intelScreen->tex.handle,
121		 intelScreen->tex.size,
122		 (drmAddress *) & intelScreen->tex.map) != 0) {
123	 intelUnmapScreenRegions(intelScreen);
124	 return GL_FALSE;
125      }
126   }
127
128   return GL_TRUE;
129}
130
131void
132intelUnmapScreenRegions(intelScreenPrivate * intelScreen)
133{
134   if (intelScreen->tex.map) {
135      drmUnmap(intelScreen->tex.map, intelScreen->tex.size);
136      intelScreen->tex.map = NULL;
137   }
138}
139
140
141static void
142intelPrintDRIInfo(intelScreenPrivate * intelScreen,
143                  __DRIscreen * sPriv, I830DRIPtr gDRIPriv)
144{
145   fprintf(stderr, "*** Front size:   0x%x  offset: 0x%x  pitch: %d\n",
146           intelScreen->front.size, intelScreen->front.offset,
147           intelScreen->pitch);
148   fprintf(stderr, "*** Back size:    0x%x  offset: 0x%x  pitch: %d\n",
149           intelScreen->back.size, intelScreen->back.offset,
150           intelScreen->pitch);
151   fprintf(stderr, "*** Depth size:   0x%x  offset: 0x%x  pitch: %d\n",
152           intelScreen->depth.size, intelScreen->depth.offset,
153           intelScreen->pitch);
154   fprintf(stderr, "*** Texture size: 0x%x  offset: 0x%x\n",
155           intelScreen->tex.size, intelScreen->tex.offset);
156   fprintf(stderr, "*** Memory : 0x%x\n", gDRIPriv->mem);
157}
158
159
160static void
161intelPrintSAREA(const drm_i915_sarea_t * sarea)
162{
163   fprintf(stderr, "SAREA: sarea width %d  height %d\n", sarea->width,
164           sarea->height);
165   fprintf(stderr, "SAREA: pitch: %d\n", sarea->pitch);
166   fprintf(stderr,
167           "SAREA: front offset: 0x%08x  size: 0x%x  handle: 0x%x tiled: %d\n",
168           sarea->front_offset, sarea->front_size,
169           (unsigned) sarea->front_handle, sarea->front_tiled);
170   fprintf(stderr,
171           "SAREA: back  offset: 0x%08x  size: 0x%x  handle: 0x%x tiled: %d\n",
172           sarea->back_offset, sarea->back_size,
173           (unsigned) sarea->back_handle, sarea->back_tiled);
174   fprintf(stderr, "SAREA: depth offset: 0x%08x  size: 0x%x  handle: 0x%x tiled: %d\n",
175           sarea->depth_offset, sarea->depth_size,
176           (unsigned) sarea->depth_handle, sarea->depth_tiled);
177   fprintf(stderr, "SAREA: tex   offset: 0x%08x  size: 0x%x  handle: 0x%x\n",
178           sarea->tex_offset, sarea->tex_size, (unsigned) sarea->tex_handle);
179}
180
181
182/**
183 * A number of the screen parameters are obtained/computed from
184 * information in the SAREA.  This function updates those parameters.
185 */
186static void
187intelUpdateScreenFromSAREA(intelScreenPrivate * intelScreen,
188                           drm_i915_sarea_t * sarea)
189{
190   intelScreen->width = sarea->width;
191   intelScreen->height = sarea->height;
192   intelScreen->pitch = sarea->pitch;
193
194   intelScreen->front.offset = sarea->front_offset;
195   intelScreen->front.handle = sarea->front_handle;
196   intelScreen->front.size = sarea->front_size;
197   intelScreen->front.tiled = sarea->front_tiled;
198
199   intelScreen->back.offset = sarea->back_offset;
200   intelScreen->back.handle = sarea->back_handle;
201   intelScreen->back.size = sarea->back_size;
202   intelScreen->back.tiled = sarea->back_tiled;
203
204   intelScreen->depth.offset = sarea->depth_offset;
205   intelScreen->depth.handle = sarea->depth_handle;
206   intelScreen->depth.size = sarea->depth_size;
207   intelScreen->depth.tiled = sarea->depth_tiled;
208
209   if (intelScreen->driScrnPriv->ddx_version.minor >= 9) {
210      intelScreen->front.bo_handle = sarea->front_bo_handle;
211      intelScreen->back.bo_handle = sarea->back_bo_handle;
212      intelScreen->depth.bo_handle = sarea->depth_bo_handle;
213   } else {
214      intelScreen->front.bo_handle = -1;
215      intelScreen->back.bo_handle = -1;
216      intelScreen->depth.bo_handle = -1;
217   }
218
219   intelScreen->tex.offset = sarea->tex_offset;
220   intelScreen->logTextureGranularity = sarea->log_tex_granularity;
221   intelScreen->tex.handle = sarea->tex_handle;
222   intelScreen->tex.size = sarea->tex_size;
223
224   if (0)
225      intelPrintSAREA(sarea);
226}
227
228static const __DRItexOffsetExtension intelTexOffsetExtension = {
229   { __DRI_TEX_OFFSET },
230   intelSetTexOffset,
231};
232
233static const __DRItexBufferExtension intelTexBufferExtension = {
234    { __DRI_TEX_BUFFER, __DRI_TEX_BUFFER_VERSION },
235   intelSetTexBuffer,
236   intelSetTexBuffer2,
237};
238
239static const __DRIextension *intelScreenExtensions[] = {
240    &driReadDrawableExtension,
241    &driSwapControlExtension.base,
242    &driFrameTrackingExtension.base,
243    &driMediaStreamCounterExtension.base,
244    &intelTexOffsetExtension.base,
245    &intelTexBufferExtension.base,
246    NULL
247};
248
249static GLboolean
250intel_get_param(__DRIscreen *psp, int param, int *value)
251{
252   int ret;
253   struct drm_i915_getparam gp;
254
255   gp.param = param;
256   gp.value = value;
257
258   ret = drmCommandWriteRead(psp->fd, DRM_I915_GETPARAM, &gp, sizeof(gp));
259   if (ret) {
260      _mesa_warning(NULL, "drm_i915_getparam: %d", ret);
261      return GL_FALSE;
262   }
263
264   return GL_TRUE;
265}
266
267static GLboolean intelInitDriver(__DRIscreen *sPriv)
268{
269   intelScreenPrivate *intelScreen;
270   I830DRIPtr gDRIPriv = (I830DRIPtr) sPriv->pDevPriv;
271   drm_i915_sarea_t *sarea;
272
273   if (sPriv->devPrivSize != sizeof(I830DRIRec)) {
274      fprintf(stderr,
275              "\nERROR!  sizeof(I830DRIRec) does not match passed size from device driver\n");
276      return GL_FALSE;
277   }
278
279   /* Allocate the private area */
280   intelScreen = (intelScreenPrivate *) CALLOC(sizeof(intelScreenPrivate));
281   if (!intelScreen) {
282      fprintf(stderr, "\nERROR!  Allocating private area failed\n");
283      return GL_FALSE;
284   }
285   /* parse information in __driConfigOptions */
286   driParseOptionInfo(&intelScreen->optionCache,
287                      __driConfigOptions, __driNConfigOptions);
288
289   intelScreen->driScrnPriv = sPriv;
290   sPriv->private = (void *) intelScreen;
291   sarea = (drm_i915_sarea_t *)
292      (((GLubyte *) sPriv->pSAREA) + gDRIPriv->sarea_priv_offset);
293   intelScreen->sarea = sarea;
294
295   intelScreen->deviceID = gDRIPriv->deviceID;
296
297   intelUpdateScreenFromSAREA(intelScreen, sarea);
298
299   if (!intelMapScreenRegions(sPriv)) {
300      fprintf(stderr, "\nERROR!  mapping regions\n");
301      _mesa_free(intelScreen);
302      sPriv->private = NULL;
303      return GL_FALSE;
304   }
305
306   if (0)
307      intelPrintDRIInfo(intelScreen, sPriv, gDRIPriv);
308
309   intelScreen->drmMinor = sPriv->drm_version.minor;
310
311   /* Determine if IRQs are active? */
312   if (!intel_get_param(sPriv, I915_PARAM_IRQ_ACTIVE,
313			&intelScreen->irq_active))
314      return GL_FALSE;
315
316   sPriv->extensions = intelScreenExtensions;
317
318   return GL_TRUE;
319}
320
321
322static void
323intelDestroyScreen(__DRIscreen * sPriv)
324{
325   intelScreenPrivate *intelScreen = (intelScreenPrivate *) sPriv->private;
326
327   dri_bufmgr_destroy(intelScreen->bufmgr);
328   intelUnmapScreenRegions(intelScreen);
329   driDestroyOptionInfo(&intelScreen->optionCache);
330
331   FREE(intelScreen);
332   sPriv->private = NULL;
333}
334
335
336/**
337 * This is called when we need to set up GL rendering to a new X window.
338 */
339static GLboolean
340intelCreateBuffer(__DRIscreen * driScrnPriv,
341                  __DRIdrawable * driDrawPriv,
342                  const __GLcontextModes * mesaVis, GLboolean isPixmap)
343{
344   if (isPixmap) {
345      return GL_FALSE;          /* not implemented */
346   }
347   else {
348      GLboolean swStencil = (mesaVis->stencilBits > 0 &&
349                             mesaVis->depthBits != 24);
350      gl_format rgbFormat;
351
352      struct intel_framebuffer *intel_fb = CALLOC_STRUCT(intel_framebuffer);
353
354      if (!intel_fb)
355	 return GL_FALSE;
356
357      _mesa_initialize_framebuffer(&intel_fb->Base, mesaVis);
358
359      if (mesaVis->redBits == 5)
360	 rgbFormat = MESA_FORMAT_RGB565;
361      else if (mesaVis->alphaBits == 0)
362	 rgbFormat = MESA_FORMAT_XRGB8888;
363      else
364	 rgbFormat = MESA_FORMAT_ARGB8888;
365
366      /* setup the hardware-based renderbuffers */
367      intel_fb->color_rb[0] = intel_create_renderbuffer(rgbFormat);
368      _mesa_add_renderbuffer(&intel_fb->Base, BUFFER_FRONT_LEFT,
369			     &intel_fb->color_rb[0]->Base);
370
371      if (mesaVis->doubleBufferMode) {
372	 intel_fb->color_rb[1] = intel_create_renderbuffer(rgbFormat);
373
374         _mesa_add_renderbuffer(&intel_fb->Base, BUFFER_BACK_LEFT,
375				&intel_fb->color_rb[1]->Base);
376
377      }
378
379      if (mesaVis->depthBits == 24) {
380	 if (mesaVis->stencilBits == 8) {
381	    /* combined depth/stencil buffer */
382	    struct intel_renderbuffer *depthStencilRb
383	       = intel_create_renderbuffer(MESA_FORMAT_S8_Z24);
384	    /* note: bind RB to two attachment points */
385	    _mesa_add_renderbuffer(&intel_fb->Base, BUFFER_DEPTH,
386				   &depthStencilRb->Base);
387	    _mesa_add_renderbuffer(&intel_fb->Base, BUFFER_STENCIL,
388				   &depthStencilRb->Base);
389	 } else {
390	    struct intel_renderbuffer *depthRb
391	       = intel_create_renderbuffer(MESA_FORMAT_X8_Z24);
392	    _mesa_add_renderbuffer(&intel_fb->Base, BUFFER_DEPTH,
393				   &depthRb->Base);
394	 }
395      }
396      else if (mesaVis->depthBits == 16) {
397         /* just 16-bit depth buffer, no hw stencil */
398         struct intel_renderbuffer *depthRb
399	    = intel_create_renderbuffer(MESA_FORMAT_Z16);
400         _mesa_add_renderbuffer(&intel_fb->Base, BUFFER_DEPTH, &depthRb->Base);
401      }
402
403      /* now add any/all software-based renderbuffers we may need */
404      _mesa_add_soft_renderbuffers(&intel_fb->Base,
405                                   GL_FALSE, /* never sw color */
406                                   GL_FALSE, /* never sw depth */
407                                   swStencil, mesaVis->accumRedBits > 0,
408                                   GL_FALSE, /* never sw alpha */
409                                   GL_FALSE  /* never sw aux */ );
410      driDrawPriv->driverPrivate = (void *) intel_fb;
411
412      return GL_TRUE;
413   }
414}
415
416static void
417intelDestroyBuffer(__DRIdrawable * driDrawPriv)
418{
419   struct intel_framebuffer *intel_fb = driDrawPriv->driverPrivate;
420   struct intel_renderbuffer *depth_rb;
421   struct intel_renderbuffer *stencil_rb;
422
423   if (intel_fb) {
424      if (intel_fb->color_rb[0]) {
425         intel_renderbuffer_set_region(intel_fb->color_rb[0], NULL);
426      }
427
428      if (intel_fb->color_rb[1]) {
429         intel_renderbuffer_set_region(intel_fb->color_rb[1], NULL);
430      }
431
432      depth_rb = intel_get_renderbuffer(&intel_fb->Base, BUFFER_DEPTH);
433      if (depth_rb) {
434         intel_renderbuffer_set_region(depth_rb, NULL);
435      }
436
437      stencil_rb = intel_get_renderbuffer(&intel_fb->Base, BUFFER_STENCIL);
438      if (stencil_rb) {
439         intel_renderbuffer_set_region(stencil_rb, NULL);
440      }
441   }
442
443   _mesa_reference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)), NULL);
444}
445
446
447/**
448 * Get information about previous buffer swaps.
449 */
450static int
451intelGetSwapInfo(__DRIdrawable * dPriv, __DRIswapInfo * sInfo)
452{
453   struct intel_framebuffer *intel_fb;
454
455   if ((dPriv == NULL) || (dPriv->driverPrivate == NULL)
456       || (sInfo == NULL)) {
457      return -1;
458   }
459
460   intel_fb = dPriv->driverPrivate;
461   sInfo->swap_count = intel_fb->swap_count;
462   sInfo->swap_ust = intel_fb->swap_ust;
463   sInfo->swap_missed_count = intel_fb->swap_missed_count;
464
465   sInfo->swap_missed_usage = (sInfo->swap_missed_count != 0)
466      ? driCalculateSwapUsage(dPriv, 0, intel_fb->swap_missed_ust)
467      : 0.0;
468
469   return 0;
470}
471
472
473/* There are probably better ways to do this, such as an
474 * init-designated function to register chipids and createcontext
475 * functions.
476 */
477extern GLboolean i830CreateContext(const __GLcontextModes * mesaVis,
478                                   __DRIcontext * driContextPriv,
479                                   void *sharedContextPrivate);
480
481extern GLboolean i915CreateContext(const __GLcontextModes * mesaVis,
482                                   __DRIcontext * driContextPriv,
483                                   void *sharedContextPrivate);
484extern GLboolean brwCreateContext(const __GLcontextModes * mesaVis,
485				  __DRIcontext * driContextPriv,
486				  void *sharedContextPrivate);
487
488static GLboolean
489intelCreateContext(const __GLcontextModes * mesaVis,
490                   __DRIcontext * driContextPriv,
491                   void *sharedContextPrivate)
492{
493   __DRIscreen *sPriv = driContextPriv->driScreenPriv;
494   intelScreenPrivate *intelScreen = (intelScreenPrivate *) sPriv->private;
495
496#ifdef I915
497   if (IS_9XX(intelScreen->deviceID)) {
498      if (!IS_965(intelScreen->deviceID)) {
499	 return i915CreateContext(mesaVis, driContextPriv,
500				  sharedContextPrivate);
501      }
502   } else {
503      intelScreen->no_vbo = GL_TRUE;
504      return i830CreateContext(mesaVis, driContextPriv, sharedContextPrivate);
505   }
506#else
507   if (IS_965(intelScreen->deviceID))
508      return brwCreateContext(mesaVis, driContextPriv, sharedContextPrivate);
509#endif
510   fprintf(stderr, "Unrecognized deviceID %x\n", intelScreen->deviceID);
511   return GL_FALSE;
512}
513
514static GLboolean
515intel_init_bufmgr(intelScreenPrivate *intelScreen)
516{
517   int gem_kernel = 0;
518   struct drm_i915_getparam gp;
519   __DRIscreen *spriv = intelScreen->driScrnPriv;
520   int num_fences = 0;
521
522   intelScreen->no_hw = getenv("INTEL_NO_HW") != NULL;
523
524   gp.param = I915_PARAM_HAS_GEM;
525   gp.value = &gem_kernel;
526
527   (void) drmCommandWriteRead(spriv->fd, DRM_I915_GETPARAM, &gp, sizeof(gp));
528
529   /* If we've got a new enough DDX that's initializing GEM and giving us
530    * object handles for the shared buffers, use that.
531    */
532   if (!intelScreen->driScrnPriv->dri2.enabled &&
533       intelScreen->driScrnPriv->ddx_version.minor < 9) {
534      fprintf(stderr, "[%s:%u] Error initializing GEM.\n",
535	      __func__, __LINE__);
536      return GL_FALSE;
537   }
538
539   intelScreen->bufmgr = intel_bufmgr_gem_init(spriv->fd, BATCH_SZ);
540   /* Otherwise, use the classic buffer manager. */
541   if (intelScreen->bufmgr == NULL) {
542      fprintf(stderr, "[%s:%u] Error initializing buffer manager.\n",
543	      __func__, __LINE__);
544      return GL_FALSE;
545   }
546
547   if (intel_get_param(spriv, I915_PARAM_NUM_FENCES_AVAIL, &num_fences))
548      intelScreen->kernel_exec_fencing = !!num_fences;
549   else
550      intelScreen->kernel_exec_fencing = GL_FALSE;
551
552   return GL_TRUE;
553}
554
555struct intel_context *intelScreenContext(intelScreenPrivate *intelScreen)
556{
557  /*
558   * This should probably change to have the screen allocate a dummy
559   * context at screen creation. For now just use the current context.
560   */
561
562  GET_CURRENT_CONTEXT(ctx);
563  if (ctx == NULL) {
564     _mesa_problem(NULL, "No current context in intelScreenContext\n");
565     return NULL;
566  }
567  return intel_context(ctx);
568}
569
570/**
571 * This is the driver specific part of the createNewScreen entry point.
572 * Called when using DRI2.
573 *
574 * \return the __GLcontextModes supported by this driver
575 */
576static const
577__DRIconfig **intelInitScreen2(__DRIscreen *psp)
578{
579   intelScreenPrivate *intelScreen;
580   GLenum fb_format[3];
581   GLenum fb_type[3];
582   /* GLX_SWAP_COPY_OML is only supported because the Intel driver doesn't
583    * support pageflipping at all.
584    */
585   static const GLenum back_buffer_modes[] = {
586      GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
587   };
588   uint8_t depth_bits[4], stencil_bits[4], msaa_samples_array[1];
589   int color;
590   __DRIconfig **configs = NULL;
591
592   /* Allocate the private area */
593   intelScreen = (intelScreenPrivate *) CALLOC(sizeof(intelScreenPrivate));
594   if (!intelScreen) {
595      fprintf(stderr, "\nERROR!  Allocating private area failed\n");
596      return GL_FALSE;
597   }
598   /* parse information in __driConfigOptions */
599   driParseOptionInfo(&intelScreen->optionCache,
600                      __driConfigOptions, __driNConfigOptions);
601
602   intelScreen->driScrnPriv = psp;
603   psp->private = (void *) intelScreen;
604
605   intelScreen->drmMinor = psp->drm_version.minor;
606
607   /* Determine chipset ID */
608   if (!intel_get_param(psp, I915_PARAM_CHIPSET_ID,
609			&intelScreen->deviceID))
610      return GL_FALSE;
611
612   if (!intel_init_bufmgr(intelScreen))
613       return GL_FALSE;
614
615   intelScreen->irq_active = 1;
616   psp->extensions = intelScreenExtensions;
617
618   depth_bits[0] = 0;
619   stencil_bits[0] = 0;
620   depth_bits[1] = 16;
621   stencil_bits[1] = 0;
622   depth_bits[2] = 24;
623   stencil_bits[2] = 0;
624   depth_bits[3] = 24;
625   stencil_bits[3] = 8;
626
627   msaa_samples_array[0] = 0;
628
629   fb_format[0] = GL_RGB;
630   fb_type[0] = GL_UNSIGNED_SHORT_5_6_5;
631
632   fb_format[1] = GL_BGR;
633   fb_type[1] = GL_UNSIGNED_INT_8_8_8_8_REV;
634
635   fb_format[2] = GL_BGRA;
636   fb_type[2] = GL_UNSIGNED_INT_8_8_8_8_REV;
637
638   depth_bits[0] = 0;
639   stencil_bits[0] = 0;
640
641   for (color = 0; color < ARRAY_SIZE(fb_format); color++) {
642      __DRIconfig **new_configs;
643      int depth_factor;
644
645      /* With DRI2 right now, GetBuffers always returns a depth/stencil buffer
646       * with the same cpp as the drawable.  So we can't support depth cpp !=
647       * color cpp currently.
648       */
649      if (fb_type[color] == GL_UNSIGNED_SHORT_5_6_5) {
650	 depth_bits[1] = 16;
651	 stencil_bits[1] = 0;
652
653	 depth_factor = 2;
654      } else {
655	 depth_bits[1] = 24;
656	 stencil_bits[1] = 0;
657	 depth_bits[2] = 24;
658	 stencil_bits[2] = 8;
659
660	 depth_factor = 3;
661      }
662      new_configs = driCreateConfigs(fb_format[color], fb_type[color],
663				     depth_bits,
664				     stencil_bits,
665				     depth_factor,
666				     back_buffer_modes,
667				     ARRAY_SIZE(back_buffer_modes),
668				     msaa_samples_array,
669				     ARRAY_SIZE(msaa_samples_array));
670      if (configs == NULL)
671	 configs = new_configs;
672      else
673	 configs = driConcatConfigs(configs, new_configs);
674   }
675
676   if (configs == NULL) {
677      fprintf(stderr, "[%s:%u] Error creating FBConfig!\n", __func__,
678              __LINE__);
679      return NULL;
680   }
681
682   return (const __DRIconfig **)configs;
683}
684
685const struct __DriverAPIRec driDriverAPI = {
686   .DestroyScreen	 = intelDestroyScreen,
687   .CreateContext	 = intelCreateContext,
688   .DestroyContext	 = intelDestroyContext,
689   .CreateBuffer	 = intelCreateBuffer,
690   .DestroyBuffer	 = intelDestroyBuffer,
691   .MakeCurrent		 = intelMakeCurrent,
692   .UnbindContext	 = intelUnbindContext,
693   .GetSwapInfo		 = intelGetSwapInfo,
694   .GetDrawableMSC	 = driDrawableGetMSC32,
695   .WaitForMSC		 = driWaitForMSC32,
696
697   .InitScreen2		 = intelInitScreen2,
698};
699
700/* This is the table of extensions that the loader will dlsym() for. */
701PUBLIC const __DRIextension *__driDriverExtensions[] = {
702    &driCoreExtension.base,
703    &driDRI2Extension.base,
704    NULL
705};
706