dri_screen.c revision 8e3b658b7fdc1c2a2b9b6bd942a811adbf1ac4ab 
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
38#include "util/u_inlines.h"
39#include "pipe/p_screen.h"
40#include "pipe/p_format.h"
41#include "state_tracker/st_gl_api.h" /* for st_gl_api_create */
42
43#include "util/u_debug.h"
44
45PUBLIC const char __driConfigOptions[] =
46   DRI_CONF_BEGIN DRI_CONF_SECTION_PERFORMANCE
47   DRI_CONF_FTHROTTLE_MODE(DRI_CONF_FTHROTTLE_IRQS)
48   DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_0)
49   DRI_CONF_SECTION_END DRI_CONF_SECTION_QUALITY
50/* DRI_CONF_FORCE_S3TC_ENABLE(false) */
51   DRI_CONF_ALLOW_LARGE_TEXTURES(1)
52   DRI_CONF_SECTION_END DRI_CONF_END;
53
54static const uint __driNConfigOptions = 3;
55
56static const __DRIconfig **
57dri_fill_in_modes(struct dri_screen *screen,
58		  unsigned pixel_bits)
59{
60   __DRIconfig **configs = NULL;
61   __DRIconfig **configs_r5g6b5 = NULL;
62   __DRIconfig **configs_a8r8g8b8 = NULL;
63   __DRIconfig **configs_x8r8g8b8 = NULL;
64   uint8_t depth_bits_array[5];
65   uint8_t stencil_bits_array[5];
66   uint8_t msaa_samples_array[5];
67   unsigned depth_buffer_factor;
68   unsigned back_buffer_factor;
69   unsigned msaa_samples_factor;
70   unsigned i;
71   struct pipe_screen *p_screen = screen->base.screen;
72   boolean pf_r5g6b5, pf_a8r8g8b8, pf_x8r8g8b8;
73   boolean pf_z16, pf_x8z24, pf_z24x8, pf_s8z24, pf_z24s8, pf_z32;
74
75   static const GLenum back_buffer_modes[] = {
76      GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
77   };
78
79   depth_bits_array[0] = 0;
80   stencil_bits_array[0] = 0;
81   depth_buffer_factor = 1;
82
83   pf_x8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24X8_UNORM,
84					    PIPE_TEXTURE_2D, 0,
85					    PIPE_BIND_DEPTH_STENCIL, 0);
86   pf_z24x8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_X8Z24_UNORM,
87					    PIPE_TEXTURE_2D, 0,
88					    PIPE_BIND_DEPTH_STENCIL, 0);
89   pf_s8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24_UNORM_S8_USCALED,
90					    PIPE_TEXTURE_2D, 0,
91					    PIPE_BIND_DEPTH_STENCIL, 0);
92   pf_z24s8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_S8_USCALED_Z24_UNORM,
93					    PIPE_TEXTURE_2D, 0,
94					    PIPE_BIND_DEPTH_STENCIL, 0);
95   pf_a8r8g8b8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8A8_UNORM,
96					       PIPE_TEXTURE_2D, 0,
97					       PIPE_BIND_RENDER_TARGET, 0);
98   pf_x8r8g8b8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8X8_UNORM,
99					       PIPE_TEXTURE_2D, 0,
100					       PIPE_BIND_RENDER_TARGET, 0);
101   pf_r5g6b5 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B5G6R5_UNORM,
102					     PIPE_TEXTURE_2D, 0,
103					     PIPE_BIND_RENDER_TARGET, 0);
104
105   /* We can only get a 16 or 32 bit depth buffer with getBuffersWithFormat */
106   if (dri_with_format(screen->sPriv)) {
107      pf_z16 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z16_UNORM,
108                                             PIPE_TEXTURE_2D, 0,
109                                             PIPE_BIND_DEPTH_STENCIL, 0);
110      pf_z32 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z32_UNORM,
111                                             PIPE_TEXTURE_2D, 0,
112                                             PIPE_BIND_DEPTH_STENCIL, 0);
113   } else {
114      pf_z16 = FALSE;
115      pf_z32 = FALSE;
116   }
117
118   if (pf_z16) {
119      depth_bits_array[depth_buffer_factor] = 16;
120      stencil_bits_array[depth_buffer_factor++] = 0;
121   }
122   if (pf_x8z24 || pf_z24x8) {
123      depth_bits_array[depth_buffer_factor] = 24;
124      stencil_bits_array[depth_buffer_factor++] = 0;
125      screen->d_depth_bits_last = pf_x8z24;
126   }
127   if (pf_s8z24 || pf_z24s8) {
128      depth_bits_array[depth_buffer_factor] = 24;
129      stencil_bits_array[depth_buffer_factor++] = 8;
130      screen->sd_depth_bits_last = pf_s8z24;
131   }
132   if (pf_z32) {
133      depth_bits_array[depth_buffer_factor] = 32;
134      stencil_bits_array[depth_buffer_factor++] = 0;
135   }
136
137   msaa_samples_array[0] = 0;
138   back_buffer_factor = 3;
139
140   /* also test color for msaa 2/4/6/8 - just assume it'll work for all depth buffers */
141   if (pf_r5g6b5) {
142      msaa_samples_factor = 1;
143      for (i = 1; i < 5; i++) {
144         if (p_screen->is_format_supported(p_screen, PIPE_FORMAT_B5G6R5_UNORM,
145						   PIPE_TEXTURE_2D, i*2,
146						   PIPE_BIND_RENDER_TARGET, 0)) {
147            msaa_samples_array[msaa_samples_factor] = i * 2;
148            msaa_samples_factor++;
149         }
150      }
151
152      configs_r5g6b5 = driCreateConfigs(GL_RGB, GL_UNSIGNED_SHORT_5_6_5,
153                                        depth_bits_array, stencil_bits_array,
154                                        depth_buffer_factor, back_buffer_modes,
155                                        back_buffer_factor,
156                                        msaa_samples_array, msaa_samples_factor,
157                                        GL_TRUE);
158   }
159
160   if (pf_a8r8g8b8) {
161      msaa_samples_factor = 1;
162      for (i = 1; i < 5; i++) {
163         if (p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8A8_UNORM,
164						   PIPE_TEXTURE_2D, i*2,
165						   PIPE_BIND_RENDER_TARGET, 0)) {
166            msaa_samples_array[msaa_samples_factor] = i * 2;
167            msaa_samples_factor++;
168         }
169      }
170
171      configs_a8r8g8b8 = driCreateConfigs(GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV,
172                                          depth_bits_array,
173                                          stencil_bits_array,
174                                          depth_buffer_factor,
175                                          back_buffer_modes,
176                                          back_buffer_factor,
177                                          msaa_samples_array,
178                                          msaa_samples_factor,
179                                          GL_TRUE);
180   }
181
182   if (pf_x8r8g8b8) {
183      msaa_samples_factor = 1;
184      for (i = 1; i < 5; i++) {
185         if (p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8X8_UNORM,
186						   PIPE_TEXTURE_2D, i*2,
187						   PIPE_BIND_RENDER_TARGET, 0)) {
188            msaa_samples_array[msaa_samples_factor] = i * 2;
189            msaa_samples_factor++;
190         }
191      }
192
193      configs_x8r8g8b8 = driCreateConfigs(GL_BGR, GL_UNSIGNED_INT_8_8_8_8_REV,
194                                          depth_bits_array,
195                                          stencil_bits_array,
196                                          depth_buffer_factor,
197                                          back_buffer_modes,
198                                          back_buffer_factor,
199                                          msaa_samples_array,
200                                          msaa_samples_factor,
201                                          GL_TRUE);
202   }
203
204   if (pixel_bits == 16) {
205      configs = configs_r5g6b5;
206      if (configs_a8r8g8b8)
207         configs = configs ? driConcatConfigs(configs, configs_a8r8g8b8) : configs_a8r8g8b8;
208      if (configs_x8r8g8b8)
209	 configs = configs ? driConcatConfigs(configs, configs_x8r8g8b8) : configs_x8r8g8b8;
210   } else {
211      configs = configs_a8r8g8b8;
212      if (configs_x8r8g8b8)
213	 configs = configs ? driConcatConfigs(configs, configs_x8r8g8b8) : configs_x8r8g8b8;
214      if (configs_r5g6b5)
215         configs = configs ? driConcatConfigs(configs, configs_r5g6b5) : configs_r5g6b5;
216   }
217
218   if (configs == NULL) {
219      debug_printf("%s: driCreateConfigs failed\n", __FUNCTION__);
220      return NULL;
221   }
222
223   return (const __DRIconfig **)configs;
224}
225
226/**
227 * Roughly the converse of dri_fill_in_modes.
228 */
229void
230dri_fill_st_visual(struct st_visual *stvis, struct dri_screen *screen,
231                   const __GLcontextModes *mode)
232{
233   memset(stvis, 0, sizeof(*stvis));
234
235   stvis->samples = mode->samples;
236   stvis->render_buffer = ST_ATTACHMENT_INVALID;
237
238   if (mode->redBits == 8) {
239      if (mode->alphaBits == 8)
240         stvis->color_format = PIPE_FORMAT_B8G8R8A8_UNORM;
241      else
242         stvis->color_format = PIPE_FORMAT_B8G8R8X8_UNORM;
243   } else {
244      stvis->color_format = PIPE_FORMAT_B5G6R5_UNORM;
245   }
246
247   switch (mode->depthBits) {
248   default:
249   case 0:
250      stvis->depth_stencil_format = PIPE_FORMAT_NONE;
251      break;
252   case 16:
253      stvis->depth_stencil_format = PIPE_FORMAT_Z16_UNORM;
254      break;
255   case 24:
256      if (mode->stencilBits == 0) {
257	 stvis->depth_stencil_format = (screen->d_depth_bits_last) ?
258                                          PIPE_FORMAT_Z24X8_UNORM:
259                                          PIPE_FORMAT_X8Z24_UNORM;
260      } else {
261	 stvis->depth_stencil_format = (screen->sd_depth_bits_last) ?
262                                          PIPE_FORMAT_Z24_UNORM_S8_USCALED:
263                                          PIPE_FORMAT_S8_USCALED_Z24_UNORM;
264      }
265      break;
266   case 32:
267      stvis->depth_stencil_format = PIPE_FORMAT_Z32_UNORM;
268      break;
269   }
270
271   stvis->accum_format = (mode->haveAccumBuffer) ?
272      PIPE_FORMAT_R16G16B16A16_SNORM : PIPE_FORMAT_NONE;
273
274   stvis->buffer_mask |= ST_ATTACHMENT_FRONT_LEFT_MASK;
275   if (mode->doubleBufferMode)
276      stvis->buffer_mask |= ST_ATTACHMENT_BACK_LEFT_MASK;
277   if (mode->stereoMode) {
278      stvis->buffer_mask |= ST_ATTACHMENT_FRONT_RIGHT_MASK;
279      if (mode->doubleBufferMode)
280         stvis->buffer_mask |= ST_ATTACHMENT_BACK_RIGHT_MASK;
281   }
282
283   if (mode->haveDepthBuffer || mode->haveStencilBuffer)
284      stvis->buffer_mask |= ST_ATTACHMENT_DEPTH_STENCIL_MASK;
285   /* let the state tracker allocate the accum buffer */
286}
287
288static boolean
289dri_get_egl_image(struct st_manager *smapi,
290                  struct st_context_iface *stctxi,
291                  void *egl_image,
292                  struct st_egl_image *stimg)
293{
294   struct dri_context *ctx =
295      (struct dri_context *)stctxi->st_manager_private;
296   __DRIimage *img = NULL;
297
298   if (ctx->lookup_egl_image) {
299      img = ctx->lookup_egl_image(ctx, egl_image);
300   }
301
302   if (!img)
303      return FALSE;
304
305   stimg->texture = NULL;
306   pipe_resource_reference(&stimg->texture, img->texture);
307   stimg->face = img->face;
308   stimg->level = img->level;
309   stimg->zslice = img->zslice;
310
311   return TRUE;
312}
313
314static int
315dri_get_param(struct st_manager *smapi,
316              enum st_manager_param param)
317{
318   struct dri_screen *screen = (struct dri_screen *)smapi;
319
320   switch(param) {
321   case ST_MANAGER_BROKEN_INVALIDATE:
322      return screen->broken_invalidate;
323   default:
324      return 0;
325   }
326}
327
328static void
329dri_destroy_option_cache(struct dri_screen * screen)
330{
331   int i;
332
333   if (screen->optionCache.info) {
334      for (i = 0; i < (1 << screen->optionCache.tableSize); ++i) {
335         FREE(screen->optionCache.info[i].name);
336         FREE(screen->optionCache.info[i].ranges);
337      }
338      FREE(screen->optionCache.info);
339   }
340
341   FREE(screen->optionCache.values);
342}
343
344void
345dri_destroy_screen_helper(struct dri_screen * screen)
346{
347   gl_api api;
348   for (api = API_OPENGL; api <= API_OPENGLES2; ++api)
349      if (screen->st_api[api] && screen->st_api[api]->destroy)
350         screen->st_api[api]->destroy(screen->st_api[api]);
351
352   if (screen->base.screen)
353      screen->base.screen->destroy(screen->base.screen);
354
355   dri_destroy_option_cache(screen);
356}
357
358void
359dri_destroy_screen(__DRIscreen * sPriv)
360{
361   struct dri_screen *screen = dri_screen(sPriv);
362
363   dri_destroy_screen_helper(screen);
364
365   FREE(screen);
366   sPriv->private = NULL;
367   sPriv->extensions = NULL;
368}
369
370const __DRIconfig **
371dri_init_screen_helper(struct dri_screen *screen,
372                       struct pipe_screen *pscreen,
373                       unsigned pixel_bits)
374{
375   screen->base.screen = pscreen;
376   if (!screen->base.screen) {
377      debug_printf("%s: failed to create pipe_screen\n", __FUNCTION__);
378      return NULL;
379   }
380
381   screen->base.get_egl_image = dri_get_egl_image;
382   screen->base.get_param = dri_get_param;
383
384   screen->st_api[API_OPENGL] = st_gl_api_create();
385   screen->st_api[API_OPENGLES1] = st_gl_api_create_es1();
386   screen->st_api[API_OPENGLES2] = st_gl_api_create_es2();
387
388   if (!screen->st_api[API_OPENGL] &&
389       !screen->st_api[API_OPENGLES1] &&
390       !screen->st_api[API_OPENGLES2])
391      return NULL;
392
393   if(pscreen->get_param(pscreen, PIPE_CAP_NPOT_TEXTURES))
394      screen->target = PIPE_TEXTURE_2D;
395   else
396      screen->target = PIPE_TEXTURE_RECT;
397
398   driParseOptionInfo(&screen->optionCache,
399                      __driConfigOptions, __driNConfigOptions);
400
401   return dri_fill_in_modes(screen, pixel_bits);
402}
403
404/* vim: set sw=3 ts=8 sts=3 expandtab: */
405