dri_screen.c revision 873ddf547d5aeb68f37a172d73131c6bc51101f6 
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#include "xmlpool.h"
34
35#include "dri_screen.h"
36#include "dri_context.h"
37#include "dri_drawable.h"
38
39#include "util/u_inlines.h"
40#include "pipe/p_screen.h"
41#include "pipe/p_format.h"
42#include "state_tracker/st_gl_api.h" /* for st_gl_api_create */
43
44#include "util/u_debug.h"
45
46PUBLIC const char __driConfigOptions[] =
47   DRI_CONF_BEGIN DRI_CONF_SECTION_PERFORMANCE
48   DRI_CONF_FTHROTTLE_MODE(DRI_CONF_FTHROTTLE_IRQS)
49   DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_0)
50   DRI_CONF_SECTION_END DRI_CONF_SECTION_QUALITY
51/* DRI_CONF_FORCE_S3TC_ENABLE(false) */
52   DRI_CONF_ALLOW_LARGE_TEXTURES(1)
53   DRI_CONF_SECTION_END DRI_CONF_END;
54
55static const uint __driNConfigOptions = 3;
56
57static const __DRIconfig **
58dri_fill_in_modes(struct dri_screen *screen,
59		  unsigned pixel_bits)
60{
61   __DRIconfig **configs = NULL;
62   __DRIconfig **configs_r5g6b5 = NULL;
63   __DRIconfig **configs_a8r8g8b8 = NULL;
64   __DRIconfig **configs_x8r8g8b8 = NULL;
65   uint8_t depth_bits_array[5];
66   uint8_t stencil_bits_array[5];
67   uint8_t msaa_samples_array[5];
68   unsigned depth_buffer_factor;
69   unsigned back_buffer_factor;
70   unsigned msaa_samples_factor;
71   unsigned i;
72   struct pipe_screen *p_screen = screen->base.screen;
73   boolean pf_r5g6b5, pf_a8r8g8b8, pf_x8r8g8b8;
74   boolean pf_z16, pf_x8z24, pf_z24x8, pf_s8z24, pf_z24s8, pf_z32;
75
76   static const GLenum back_buffer_modes[] = {
77      GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
78   };
79
80   depth_bits_array[0] = 0;
81   stencil_bits_array[0] = 0;
82   depth_buffer_factor = 1;
83
84   pf_x8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24X8_UNORM,
85					    PIPE_TEXTURE_2D, 0,
86					    PIPE_BIND_DEPTH_STENCIL, 0);
87   pf_z24x8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_X8Z24_UNORM,
88					    PIPE_TEXTURE_2D, 0,
89					    PIPE_BIND_DEPTH_STENCIL, 0);
90   pf_s8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24_UNORM_S8_USCALED,
91					    PIPE_TEXTURE_2D, 0,
92					    PIPE_BIND_DEPTH_STENCIL, 0);
93   pf_z24s8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_S8_USCALED_Z24_UNORM,
94					    PIPE_TEXTURE_2D, 0,
95					    PIPE_BIND_DEPTH_STENCIL, 0);
96   pf_a8r8g8b8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8A8_UNORM,
97					       PIPE_TEXTURE_2D, 0,
98					       PIPE_BIND_RENDER_TARGET, 0);
99   pf_x8r8g8b8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8X8_UNORM,
100					       PIPE_TEXTURE_2D, 0,
101					       PIPE_BIND_RENDER_TARGET, 0);
102   pf_r5g6b5 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B5G6R5_UNORM,
103					     PIPE_TEXTURE_2D, 0,
104					     PIPE_BIND_RENDER_TARGET, 0);
105
106   /* We can only get a 16 or 32 bit depth buffer with getBuffersWithFormat */
107   if (dri_with_format(screen->sPriv)) {
108      pf_z16 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z16_UNORM,
109                                             PIPE_TEXTURE_2D, 0,
110                                             PIPE_BIND_DEPTH_STENCIL, 0);
111      pf_z32 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z32_UNORM,
112                                             PIPE_TEXTURE_2D, 0,
113                                             PIPE_BIND_DEPTH_STENCIL, 0);
114   } else {
115      pf_z16 = FALSE;
116      pf_z32 = FALSE;
117   }
118
119   if (pf_z16) {
120      depth_bits_array[depth_buffer_factor] = 16;
121      stencil_bits_array[depth_buffer_factor++] = 0;
122   }
123   if (pf_x8z24 || pf_z24x8) {
124      depth_bits_array[depth_buffer_factor] = 24;
125      stencil_bits_array[depth_buffer_factor++] = 0;
126      screen->d_depth_bits_last = pf_x8z24;
127   }
128   if (pf_s8z24 || pf_z24s8) {
129      depth_bits_array[depth_buffer_factor] = 24;
130      stencil_bits_array[depth_buffer_factor++] = 8;
131      screen->sd_depth_bits_last = pf_s8z24;
132   }
133   if (pf_z32) {
134      depth_bits_array[depth_buffer_factor] = 32;
135      stencil_bits_array[depth_buffer_factor++] = 0;
136   }
137
138   msaa_samples_array[0] = 0;
139   back_buffer_factor = 3;
140
141   /* also test color for msaa 2/4/6/8 - just assume it'll work for all depth buffers */
142   if (pf_r5g6b5) {
143      msaa_samples_factor = 1;
144      for (i = 1; i < 5; i++) {
145         if (p_screen->is_format_supported(p_screen, PIPE_FORMAT_B5G6R5_UNORM,
146						   PIPE_TEXTURE_2D, i*2,
147						   PIPE_BIND_RENDER_TARGET, 0)) {
148            msaa_samples_array[msaa_samples_factor] = i * 2;
149            msaa_samples_factor++;
150         }
151      }
152
153      configs_r5g6b5 = driCreateConfigs(GL_RGB, GL_UNSIGNED_SHORT_5_6_5,
154                                        depth_bits_array, stencil_bits_array,
155                                        depth_buffer_factor, back_buffer_modes,
156                                        back_buffer_factor,
157                                        msaa_samples_array, msaa_samples_factor,
158                                        GL_TRUE);
159   }
160
161   if (pf_a8r8g8b8) {
162      msaa_samples_factor = 1;
163      for (i = 1; i < 5; i++) {
164         if (p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8A8_UNORM,
165						   PIPE_TEXTURE_2D, i*2,
166						   PIPE_BIND_RENDER_TARGET, 0)) {
167            msaa_samples_array[msaa_samples_factor] = i * 2;
168            msaa_samples_factor++;
169         }
170      }
171
172      configs_a8r8g8b8 = driCreateConfigs(GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV,
173                                          depth_bits_array,
174                                          stencil_bits_array,
175                                          depth_buffer_factor,
176                                          back_buffer_modes,
177                                          back_buffer_factor,
178                                          msaa_samples_array,
179                                          msaa_samples_factor,
180                                          GL_TRUE);
181   }
182
183   if (pf_x8r8g8b8) {
184      msaa_samples_factor = 1;
185      for (i = 1; i < 5; i++) {
186         if (p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8X8_UNORM,
187						   PIPE_TEXTURE_2D, i*2,
188						   PIPE_BIND_RENDER_TARGET, 0)) {
189            msaa_samples_array[msaa_samples_factor] = i * 2;
190            msaa_samples_factor++;
191         }
192      }
193
194      configs_x8r8g8b8 = driCreateConfigs(GL_BGR, GL_UNSIGNED_INT_8_8_8_8_REV,
195                                          depth_bits_array,
196                                          stencil_bits_array,
197                                          depth_buffer_factor,
198                                          back_buffer_modes,
199                                          back_buffer_factor,
200                                          msaa_samples_array,
201                                          msaa_samples_factor,
202                                          GL_TRUE);
203   }
204
205   if (pixel_bits == 16) {
206      configs = configs_r5g6b5;
207      if (configs_a8r8g8b8)
208         configs = configs ? driConcatConfigs(configs, configs_a8r8g8b8) : configs_a8r8g8b8;
209      if (configs_x8r8g8b8)
210	 configs = configs ? driConcatConfigs(configs, configs_x8r8g8b8) : configs_x8r8g8b8;
211   } else {
212      configs = configs_a8r8g8b8;
213      if (configs_x8r8g8b8)
214	 configs = configs ? driConcatConfigs(configs, configs_x8r8g8b8) : configs_x8r8g8b8;
215      if (configs_r5g6b5)
216         configs = configs ? driConcatConfigs(configs, configs_r5g6b5) : configs_r5g6b5;
217   }
218
219   if (configs == NULL) {
220      debug_printf("%s: driCreateConfigs failed\n", __FUNCTION__);
221      return NULL;
222   }
223
224   return (const __DRIconfig **)configs;
225}
226
227/**
228 * Roughly the converse of dri_fill_in_modes.
229 */
230void
231dri_fill_st_visual(struct st_visual *stvis, struct dri_screen *screen,
232                   const __GLcontextModes *mode)
233{
234   memset(stvis, 0, sizeof(*stvis));
235
236   stvis->samples = mode->samples;
237   stvis->render_buffer = ST_ATTACHMENT_INVALID;
238
239   if (mode->redBits == 8) {
240      if (mode->alphaBits == 8)
241         stvis->color_format = PIPE_FORMAT_B8G8R8A8_UNORM;
242      else
243         stvis->color_format = PIPE_FORMAT_B8G8R8X8_UNORM;
244   } else {
245      stvis->color_format = PIPE_FORMAT_B5G6R5_UNORM;
246   }
247
248   switch (mode->depthBits) {
249   default:
250   case 0:
251      stvis->depth_stencil_format = PIPE_FORMAT_NONE;
252      break;
253   case 16:
254      stvis->depth_stencil_format = PIPE_FORMAT_Z16_UNORM;
255      break;
256   case 24:
257      if (mode->stencilBits == 0) {
258	 stvis->depth_stencil_format = (screen->d_depth_bits_last) ?
259                                          PIPE_FORMAT_Z24X8_UNORM:
260                                          PIPE_FORMAT_X8Z24_UNORM;
261      } else {
262	 stvis->depth_stencil_format = (screen->sd_depth_bits_last) ?
263                                          PIPE_FORMAT_Z24_UNORM_S8_USCALED:
264                                          PIPE_FORMAT_S8_USCALED_Z24_UNORM;
265      }
266      break;
267   case 32:
268      stvis->depth_stencil_format = PIPE_FORMAT_Z32_UNORM;
269      break;
270   }
271
272   stvis->accum_format = (mode->haveAccumBuffer) ?
273      PIPE_FORMAT_R16G16B16A16_SNORM : PIPE_FORMAT_NONE;
274
275   stvis->buffer_mask |= ST_ATTACHMENT_FRONT_LEFT_MASK;
276   if (mode->doubleBufferMode)
277      stvis->buffer_mask |= ST_ATTACHMENT_BACK_LEFT_MASK;
278   if (mode->stereoMode) {
279      stvis->buffer_mask |= ST_ATTACHMENT_FRONT_RIGHT_MASK;
280      if (mode->doubleBufferMode)
281         stvis->buffer_mask |= ST_ATTACHMENT_BACK_RIGHT_MASK;
282   }
283
284   if (mode->haveDepthBuffer || mode->haveStencilBuffer)
285      stvis->buffer_mask |= ST_ATTACHMENT_DEPTH_STENCIL_MASK;
286   /* let the state tracker allocate the accum buffer */
287}
288
289static boolean
290dri_get_egl_image(struct st_manager *smapi,
291                  struct st_context_iface *stctxi,
292                  void *egl_image,
293                  struct st_egl_image *stimg)
294{
295   struct dri_context *ctx =
296      (struct dri_context *)stctxi->st_manager_private;
297   __DRIimage *img = NULL;
298
299   if (ctx->lookup_egl_image) {
300      img = ctx->lookup_egl_image(ctx, egl_image);
301   }
302
303   if (!img)
304      return FALSE;
305
306   stimg->texture = NULL;
307   pipe_resource_reference(&stimg->texture, img->texture);
308   stimg->face = img->face;
309   stimg->level = img->level;
310   stimg->zslice = img->zslice;
311
312   return TRUE;
313}
314
315static int
316dri_get_param(struct st_manager *smapi,
317              enum st_manager_param param)
318{
319   struct dri_screen *screen = (struct dri_screen *)smapi;
320
321   switch(param) {
322   case ST_MANAGER_BROKEN_INVALIDATE:
323      return screen->broken_invalidate;
324   default:
325      return 0;
326   }
327}
328
329static void
330dri_destroy_option_cache(struct dri_screen * screen)
331{
332   int i;
333
334   if (screen->optionCache.info) {
335      for (i = 0; i < (1 << screen->optionCache.tableSize); ++i) {
336         FREE(screen->optionCache.info[i].name);
337         FREE(screen->optionCache.info[i].ranges);
338      }
339      FREE(screen->optionCache.info);
340   }
341
342   FREE(screen->optionCache.values);
343}
344
345void
346dri_destroy_screen_helper(struct dri_screen * screen)
347{
348   if (screen->st_api && screen->st_api->destroy)
349      screen->st_api->destroy(screen->st_api);
350
351   if (screen->base.screen)
352      screen->base.screen->destroy(screen->base.screen);
353
354   dri_destroy_option_cache(screen);
355}
356
357void
358dri_destroy_screen(__DRIscreen * sPriv)
359{
360   struct dri_screen *screen = dri_screen(sPriv);
361
362   dri_destroy_screen_helper(screen);
363
364   FREE(screen);
365   sPriv->private = NULL;
366   sPriv->extensions = NULL;
367}
368
369const __DRIconfig **
370dri_init_screen_helper(struct dri_screen *screen,
371                       struct pipe_screen *pscreen,
372                       unsigned pixel_bits)
373{
374   screen->base.screen = pscreen;
375   if (!screen->base.screen) {
376      debug_printf("%s: failed to create pipe_screen\n", __FUNCTION__);
377      return NULL;
378   }
379
380   screen->base.get_egl_image = dri_get_egl_image;
381   screen->base.get_param = dri_get_param;
382   screen->st_api = st_gl_api_create();
383
384   if (!screen->st_api)
385      return NULL;
386
387   driParseOptionInfo(&screen->optionCache,
388                      __driConfigOptions, __driNConfigOptions);
389
390   return dri_fill_in_modes(screen, pixel_bits);
391}
392
393/* vim: set sw=3 ts=8 sts=3 expandtab: */
394