dri_screen.c revision f501230db3a94c9328b8e769d9c17b2c3792e19c 
1/**************************************************************************
2 *
3 * Copyright 2009, VMware, Inc.
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 VMWARE 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 * Author: Keith Whitwell <keithw@vmware.com>
29 * Author: Jakob Bornecrantz <wallbraker@gmail.com>
30 */
31
32#include "utils.h"
33#ifndef __NOT_HAVE_DRM_H
34#include "vblank.h"
35#endif
36#include "xmlpool.h"
37
38#include "dri_screen.h"
39#include "dri_context.h"
40#include "dri_drawable.h"
41#include "dri1_helper.h"
42#ifndef __NOT_HAVE_DRM_H
43#include "dri2.h"
44#else
45#include "drisw.h"
46#endif
47
48#include "util/u_inlines.h"
49#include "pipe/p_screen.h"
50#include "pipe/p_format.h"
51#include "state_tracker/st_gl_api.h" /* for st_gl_api_create */
52
53#include "util/u_debug.h"
54
55PUBLIC const char __driConfigOptions[] =
56   DRI_CONF_BEGIN DRI_CONF_SECTION_PERFORMANCE
57   DRI_CONF_FTHROTTLE_MODE(DRI_CONF_FTHROTTLE_IRQS)
58   DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_0)
59   DRI_CONF_SECTION_END DRI_CONF_SECTION_QUALITY
60/* DRI_CONF_FORCE_S3TC_ENABLE(false) */
61   DRI_CONF_ALLOW_LARGE_TEXTURES(1)
62   DRI_CONF_SECTION_END DRI_CONF_END;
63
64static const uint __driNConfigOptions = 3;
65
66static const __DRIconfig **
67dri_fill_in_modes(struct dri_screen *screen,
68		  unsigned pixel_bits)
69{
70   __DRIconfig **configs = NULL;
71   __DRIconfig **configs_r5g6b5 = NULL;
72   __DRIconfig **configs_a8r8g8b8 = NULL;
73   __DRIconfig **configs_x8r8g8b8 = NULL;
74   uint8_t depth_bits_array[5];
75   uint8_t stencil_bits_array[5];
76   uint8_t msaa_samples_array[5];
77   unsigned depth_buffer_factor;
78   unsigned back_buffer_factor;
79   unsigned msaa_samples_factor;
80   unsigned i;
81   struct pipe_screen *p_screen = screen->base.screen;
82   boolean pf_r5g6b5, pf_a8r8g8b8, pf_x8r8g8b8;
83   boolean pf_z16, pf_x8z24, pf_z24x8, pf_s8z24, pf_z24s8, pf_z32;
84
85   static const GLenum back_buffer_modes[] = {
86      GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
87   };
88
89   depth_bits_array[0] = 0;
90   stencil_bits_array[0] = 0;
91   depth_buffer_factor = 1;
92
93   pf_x8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24X8_UNORM,
94					    PIPE_TEXTURE_2D, 0,
95					    PIPE_BIND_DEPTH_STENCIL, 0);
96   pf_z24x8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_X8Z24_UNORM,
97					    PIPE_TEXTURE_2D, 0,
98					    PIPE_BIND_DEPTH_STENCIL, 0);
99   pf_s8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24_UNORM_S8_USCALED,
100					    PIPE_TEXTURE_2D, 0,
101					    PIPE_BIND_DEPTH_STENCIL, 0);
102   pf_z24s8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_S8_USCALED_Z24_UNORM,
103					    PIPE_TEXTURE_2D, 0,
104					    PIPE_BIND_DEPTH_STENCIL, 0);
105   pf_a8r8g8b8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8A8_UNORM,
106					       PIPE_TEXTURE_2D, 0,
107					       PIPE_BIND_RENDER_TARGET, 0);
108   pf_x8r8g8b8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8X8_UNORM,
109					       PIPE_TEXTURE_2D, 0,
110					       PIPE_BIND_RENDER_TARGET, 0);
111   pf_r5g6b5 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B5G6R5_UNORM,
112					     PIPE_TEXTURE_2D, 0,
113					     PIPE_BIND_RENDER_TARGET, 0);
114
115   /* We can only get a 16 or 32 bit depth buffer with getBuffersWithFormat */
116   if (dri_with_format(screen->sPriv)) {
117      pf_z16 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z16_UNORM,
118                                             PIPE_TEXTURE_2D, 0,
119                                             PIPE_BIND_DEPTH_STENCIL, 0);
120      pf_z32 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z32_UNORM,
121                                             PIPE_TEXTURE_2D, 0,
122                                             PIPE_BIND_DEPTH_STENCIL, 0);
123   } else {
124      pf_z16 = FALSE;
125      pf_z32 = FALSE;
126   }
127
128   if (pf_z16) {
129      depth_bits_array[depth_buffer_factor] = 16;
130      stencil_bits_array[depth_buffer_factor++] = 0;
131   }
132   if (pf_x8z24 || pf_z24x8) {
133      depth_bits_array[depth_buffer_factor] = 24;
134      stencil_bits_array[depth_buffer_factor++] = 0;
135      screen->d_depth_bits_last = pf_x8z24;
136   }
137   if (pf_s8z24 || pf_z24s8) {
138      depth_bits_array[depth_buffer_factor] = 24;
139      stencil_bits_array[depth_buffer_factor++] = 8;
140      screen->sd_depth_bits_last = pf_s8z24;
141   }
142   if (pf_z32) {
143      depth_bits_array[depth_buffer_factor] = 32;
144      stencil_bits_array[depth_buffer_factor++] = 0;
145   }
146
147   msaa_samples_array[0] = 0;
148   back_buffer_factor = 3;
149
150   /* also test color for msaa 2/4/6/8 - just assume it'll work for all depth buffers */
151   if (pf_r5g6b5) {
152      msaa_samples_factor = 1;
153      for (i = 1; i < 5; i++) {
154         if (p_screen->is_format_supported(p_screen, PIPE_FORMAT_B5G6R5_UNORM,
155						   PIPE_TEXTURE_2D, i*2,
156						   PIPE_BIND_RENDER_TARGET, 0)) {
157            msaa_samples_array[msaa_samples_factor] = i * 2;
158            msaa_samples_factor++;
159         }
160      }
161
162      configs_r5g6b5 = driCreateConfigs(GL_RGB, GL_UNSIGNED_SHORT_5_6_5,
163                                        depth_bits_array, stencil_bits_array,
164                                        depth_buffer_factor, back_buffer_modes,
165                                        back_buffer_factor,
166                                        msaa_samples_array, msaa_samples_factor,
167                                        GL_TRUE);
168   }
169
170   if (pf_a8r8g8b8) {
171      msaa_samples_factor = 1;
172      for (i = 1; i < 5; i++) {
173         if (p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8A8_UNORM,
174						   PIPE_TEXTURE_2D, i*2,
175						   PIPE_BIND_RENDER_TARGET, 0)) {
176            msaa_samples_array[msaa_samples_factor] = i * 2;
177            msaa_samples_factor++;
178         }
179      }
180
181      configs_a8r8g8b8 = driCreateConfigs(GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV,
182                                          depth_bits_array,
183                                          stencil_bits_array,
184                                          depth_buffer_factor,
185                                          back_buffer_modes,
186                                          back_buffer_factor,
187                                          msaa_samples_array,
188                                          msaa_samples_factor,
189                                          GL_TRUE);
190   }
191
192   if (pf_x8r8g8b8) {
193      msaa_samples_factor = 1;
194      for (i = 1; i < 5; i++) {
195         if (p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8X8_UNORM,
196						   PIPE_TEXTURE_2D, i*2,
197						   PIPE_BIND_RENDER_TARGET, 0)) {
198            msaa_samples_array[msaa_samples_factor] = i * 2;
199            msaa_samples_factor++;
200         }
201      }
202
203      configs_x8r8g8b8 = driCreateConfigs(GL_BGR, GL_UNSIGNED_INT_8_8_8_8_REV,
204                                          depth_bits_array,
205                                          stencil_bits_array,
206                                          depth_buffer_factor,
207                                          back_buffer_modes,
208                                          back_buffer_factor,
209                                          msaa_samples_array,
210                                          msaa_samples_factor,
211                                          GL_TRUE);
212   }
213
214   if (pixel_bits == 16) {
215      configs = configs_r5g6b5;
216      if (configs_a8r8g8b8)
217         configs = configs ? driConcatConfigs(configs, configs_a8r8g8b8) : configs_a8r8g8b8;
218      if (configs_x8r8g8b8)
219	 configs = configs ? driConcatConfigs(configs, configs_x8r8g8b8) : configs_x8r8g8b8;
220   } else {
221      configs = configs_a8r8g8b8;
222      if (configs_x8r8g8b8)
223	 configs = configs ? driConcatConfigs(configs, configs_x8r8g8b8) : configs_x8r8g8b8;
224      if (configs_r5g6b5)
225         configs = configs ? driConcatConfigs(configs, configs_r5g6b5) : configs_r5g6b5;
226   }
227
228   if (configs == NULL) {
229      debug_printf("%s: driCreateConfigs failed\n", __FUNCTION__);
230      return NULL;
231   }
232
233   return (const __DRIconfig **)configs;
234}
235
236/**
237 * Roughly the converse of dri_fill_in_modes.
238 */
239void
240dri_fill_st_visual(struct st_visual *stvis, struct dri_screen *screen,
241                   const __GLcontextModes *mode)
242{
243   memset(stvis, 0, sizeof(*stvis));
244
245   stvis->samples = mode->samples;
246   stvis->render_buffer = ST_ATTACHMENT_INVALID;
247
248   if (mode->redBits == 8) {
249      if (mode->alphaBits == 8)
250         stvis->color_format = PIPE_FORMAT_B8G8R8A8_UNORM;
251      else
252         stvis->color_format = PIPE_FORMAT_B8G8R8X8_UNORM;
253   } else {
254      stvis->color_format = PIPE_FORMAT_B5G6R5_UNORM;
255   }
256
257   switch (mode->depthBits) {
258   default:
259   case 0:
260      stvis->depth_stencil_format = PIPE_FORMAT_NONE;
261      break;
262   case 16:
263      stvis->depth_stencil_format = PIPE_FORMAT_Z16_UNORM;
264      break;
265   case 24:
266      if (mode->stencilBits == 0) {
267	 stvis->depth_stencil_format = (screen->d_depth_bits_last) ?
268                                          PIPE_FORMAT_Z24X8_UNORM:
269                                          PIPE_FORMAT_X8Z24_UNORM;
270      } else {
271	 stvis->depth_stencil_format = (screen->sd_depth_bits_last) ?
272                                          PIPE_FORMAT_Z24_UNORM_S8_USCALED:
273                                          PIPE_FORMAT_S8_USCALED_Z24_UNORM;
274      }
275      break;
276   case 32:
277      stvis->depth_stencil_format = PIPE_FORMAT_Z32_UNORM;
278      break;
279   }
280
281   stvis->accum_format = (mode->haveAccumBuffer) ?
282      PIPE_FORMAT_R16G16B16A16_SNORM : PIPE_FORMAT_NONE;
283
284   stvis->buffer_mask |= ST_ATTACHMENT_FRONT_LEFT_MASK;
285   if (mode->doubleBufferMode)
286      stvis->buffer_mask |= ST_ATTACHMENT_BACK_LEFT_MASK;
287   if (mode->stereoMode) {
288      stvis->buffer_mask |= ST_ATTACHMENT_FRONT_RIGHT_MASK;
289      if (mode->doubleBufferMode)
290         stvis->buffer_mask |= ST_ATTACHMENT_BACK_RIGHT_MASK;
291   }
292
293   if (mode->haveDepthBuffer || mode->haveStencilBuffer)
294      stvis->buffer_mask |= ST_ATTACHMENT_DEPTH_STENCIL_MASK;
295   /* let the state tracker allocate the accum buffer */
296}
297
298static boolean
299dri_get_egl_image(struct st_manager *smapi,
300                  struct st_context_iface *stctxi,
301                  void *egl_image,
302                  struct st_egl_image *stimg)
303{
304   struct dri_context *ctx =
305      (struct dri_context *)stctxi->st_manager_private;
306   struct dri_screen *screen = dri_screen(ctx->sPriv);
307   __DRIimage *img = NULL;
308
309   if (screen->lookup_egl_image) {
310      img = screen->lookup_egl_image(ctx, egl_image);
311   }
312
313   if (!img)
314      return FALSE;
315
316   stimg->texture = NULL;
317   pipe_resource_reference(&stimg->texture, img->texture);
318   stimg->face = img->face;
319   stimg->level = img->level;
320   stimg->zslice = img->zslice;
321
322   return TRUE;
323}
324
325static int
326dri_get_param(struct st_manager *smapi,
327              enum st_manager_param param)
328{
329   struct dri_screen *screen = (struct dri_screen *)smapi;
330
331   switch(param) {
332   case ST_MANAGER_BROKEN_INVALIDATE:
333      return screen->broken_invalidate;
334   default:
335      return 0;
336   }
337}
338
339static void
340dri_destroy_option_cache(struct dri_screen * screen)
341{
342   int i;
343
344   if (screen->optionCache.info) {
345      for (i = 0; i < (1 << screen->optionCache.tableSize); ++i) {
346         FREE(screen->optionCache.info[i].name);
347         FREE(screen->optionCache.info[i].ranges);
348      }
349      FREE(screen->optionCache.info);
350   }
351
352   FREE(screen->optionCache.values);
353}
354
355void
356dri_destroy_screen_helper(struct dri_screen * screen)
357{
358   dri1_destroy_pipe_context(screen);
359
360   if (screen->st_api && screen->st_api->destroy)
361      screen->st_api->destroy(screen->st_api);
362
363   if (screen->base.screen)
364      screen->base.screen->destroy(screen->base.screen);
365
366   dri_destroy_option_cache(screen);
367}
368
369static void
370dri_destroy_screen(__DRIscreen * sPriv)
371{
372   struct dri_screen *screen = dri_screen(sPriv);
373
374   dri_destroy_screen_helper(screen);
375
376   FREE(screen);
377   sPriv->private = NULL;
378   sPriv->extensions = NULL;
379}
380
381const __DRIconfig **
382dri_init_screen_helper(struct dri_screen *screen,
383                       struct pipe_screen *pscreen,
384                       unsigned pixel_bits)
385{
386   screen->base.screen = pscreen;
387   if (!screen->base.screen) {
388      debug_printf("%s: failed to create pipe_screen\n", __FUNCTION__);
389      return NULL;
390   }
391
392   screen->base.get_egl_image = dri_get_egl_image;
393   screen->base.get_param = dri_get_param;
394   screen->st_api = st_gl_api_create();
395
396   if (!screen->st_api)
397      return NULL;
398
399   driParseOptionInfo(&screen->optionCache,
400                      __driConfigOptions, __driNConfigOptions);
401
402   return dri_fill_in_modes(screen, pixel_bits);
403}
404
405/**
406 * DRI driver virtual function table.
407 *
408 * DRI versions differ in their implementation of init_screen and swap_buffers.
409 */
410const struct __DriverAPIRec driDriverAPI = {
411   .DestroyScreen = dri_destroy_screen,
412   .CreateContext = dri_create_context,
413   .DestroyContext = dri_destroy_context,
414   .CreateBuffer = dri_create_buffer,
415   .DestroyBuffer = dri_destroy_buffer,
416   .MakeCurrent = dri_make_current,
417   .UnbindContext = dri_unbind_context,
418
419#ifndef __NOT_HAVE_DRM_H
420
421   .GetSwapInfo = NULL,
422   .GetDrawableMSC = NULL,
423   .WaitForMSC = NULL,
424   .InitScreen2 = dri2_init_screen,
425
426   .InitScreen = NULL,
427   .SwapBuffers = NULL,
428   .CopySubBuffer = NULL,
429
430#else
431
432   .InitScreen = drisw_init_screen,
433   .SwapBuffers = drisw_swap_buffers,
434
435#endif
436
437};
438
439/* vim: set sw=3 ts=8 sts=3 expandtab: */
440