dri_screen.c revision f80c2874eca86a12517fbe2f4c15287edfb4dc89 
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
37#include "util/u_inlines.h"
38#include "pipe/p_screen.h"
39#include "pipe/p_format.h"
40#include "state_tracker/st_gl_api.h" /* for st_gl_api_create */
41
42#include "util/u_debug.h"
43
44#define MSAA_VISUAL_MAX_SAMPLES 8
45
46PUBLIC const char __driConfigOptions[] =
47   DRI_CONF_BEGIN
48      DRI_CONF_SECTION_PERFORMANCE
49         DRI_CONF_FTHROTTLE_MODE(DRI_CONF_FTHROTTLE_IRQS)
50         DRI_CONF_VBLANK_MODE(DRI_CONF_VBLANK_DEF_INTERVAL_0)
51      DRI_CONF_SECTION_END
52
53      DRI_CONF_SECTION_QUALITY
54/*       DRI_CONF_FORCE_S3TC_ENABLE(false) */
55         DRI_CONF_ALLOW_LARGE_TEXTURES(1)
56         DRI_CONF_PP_CELSHADE(0)
57         DRI_CONF_PP_NORED(0)
58         DRI_CONF_PP_NOGREEN(0)
59         DRI_CONF_PP_NOBLUE(0)
60         DRI_CONF_PP_JIMENEZMLAA(0, 0, 32)
61         DRI_CONF_PP_JIMENEZMLAA_COLOR(0, 0, 32)
62      DRI_CONF_SECTION_END
63   DRI_CONF_END;
64
65static const uint __driNConfigOptions = 9;
66
67static const __DRIconfig **
68dri_fill_in_modes(struct dri_screen *screen,
69		  unsigned pixel_bits)
70{
71   __DRIconfig **configs = NULL;
72   __DRIconfig **configs_r5g6b5 = NULL;
73   __DRIconfig **configs_a8r8g8b8 = NULL;
74   __DRIconfig **configs_x8r8g8b8 = NULL;
75   uint8_t depth_bits_array[5];
76   uint8_t stencil_bits_array[5];
77   uint8_t msaa_samples_array[MSAA_VISUAL_MAX_SAMPLES];
78   unsigned depth_buffer_factor;
79   unsigned back_buffer_factor;
80   unsigned msaa_samples_factor, msaa_samples_max;
81   unsigned i;
82   struct pipe_screen *p_screen = screen->base.screen;
83   boolean pf_r5g6b5, pf_a8r8g8b8, pf_x8r8g8b8;
84   boolean pf_z16, pf_x8z24, pf_z24x8, pf_s8z24, pf_z24s8, pf_z32;
85
86   static const GLenum back_buffer_modes[] = {
87      GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
88   };
89
90   depth_bits_array[0] = 0;
91   stencil_bits_array[0] = 0;
92   depth_buffer_factor = 1;
93
94   msaa_samples_max = (screen->st_api->feature_mask & ST_API_FEATURE_MS_VISUALS)
95      ? MSAA_VISUAL_MAX_SAMPLES : 1;
96
97   pf_x8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24X8_UNORM,
98					    PIPE_TEXTURE_2D, 0,
99                                            PIPE_BIND_DEPTH_STENCIL);
100   pf_z24x8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_X8Z24_UNORM,
101					    PIPE_TEXTURE_2D, 0,
102                                            PIPE_BIND_DEPTH_STENCIL);
103   pf_s8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24_UNORM_S8_UINT,
104					    PIPE_TEXTURE_2D, 0,
105                                            PIPE_BIND_DEPTH_STENCIL);
106   pf_z24s8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_S8_UINT_Z24_UNORM,
107					    PIPE_TEXTURE_2D, 0,
108                                            PIPE_BIND_DEPTH_STENCIL);
109   pf_a8r8g8b8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8A8_UNORM,
110					       PIPE_TEXTURE_2D, 0,
111                                               PIPE_BIND_RENDER_TARGET);
112   pf_x8r8g8b8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8X8_UNORM,
113					       PIPE_TEXTURE_2D, 0,
114                                               PIPE_BIND_RENDER_TARGET);
115   pf_r5g6b5 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_B5G6R5_UNORM,
116					     PIPE_TEXTURE_2D, 0,
117                                             PIPE_BIND_RENDER_TARGET);
118
119   /* We can only get a 16 or 32 bit depth buffer with getBuffersWithFormat */
120   if (dri_with_format(screen->sPriv)) {
121      pf_z16 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z16_UNORM,
122                                             PIPE_TEXTURE_2D, 0,
123                                             PIPE_BIND_DEPTH_STENCIL);
124      pf_z32 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z32_UNORM,
125                                             PIPE_TEXTURE_2D, 0,
126                                             PIPE_BIND_DEPTH_STENCIL);
127   } else {
128      pf_z16 = FALSE;
129      pf_z32 = FALSE;
130   }
131
132   if (pf_z16) {
133      depth_bits_array[depth_buffer_factor] = 16;
134      stencil_bits_array[depth_buffer_factor++] = 0;
135   }
136   if (pf_x8z24 || pf_z24x8) {
137      depth_bits_array[depth_buffer_factor] = 24;
138      stencil_bits_array[depth_buffer_factor++] = 0;
139      screen->d_depth_bits_last = pf_x8z24;
140   }
141   if (pf_s8z24 || pf_z24s8) {
142      depth_bits_array[depth_buffer_factor] = 24;
143      stencil_bits_array[depth_buffer_factor++] = 8;
144      screen->sd_depth_bits_last = pf_s8z24;
145   }
146   if (pf_z32) {
147      depth_bits_array[depth_buffer_factor] = 32;
148      stencil_bits_array[depth_buffer_factor++] = 0;
149   }
150
151   msaa_samples_array[0] = 0;
152   back_buffer_factor = 3;
153
154   /* Also test for color multisample support - just assume it'll work
155    * for all depth buffers.
156    */
157   if (pf_r5g6b5) {
158      msaa_samples_factor = 1;
159      for (i = 2; i <= msaa_samples_max; i++) {
160         if (p_screen->is_format_supported(p_screen, PIPE_FORMAT_B5G6R5_UNORM,
161						   PIPE_TEXTURE_2D, i,
162                                                   PIPE_BIND_RENDER_TARGET)) {
163            msaa_samples_array[msaa_samples_factor] = i;
164            msaa_samples_factor++;
165         }
166      }
167
168      configs_r5g6b5 = driCreateConfigs(GL_RGB, GL_UNSIGNED_SHORT_5_6_5,
169                                        depth_bits_array, stencil_bits_array,
170                                        depth_buffer_factor, back_buffer_modes,
171                                        back_buffer_factor,
172                                        msaa_samples_array, msaa_samples_factor,
173                                        GL_TRUE);
174   }
175
176   if (pf_a8r8g8b8) {
177      msaa_samples_factor = 1;
178      for (i = 2; i <= msaa_samples_max; i++) {
179         if (p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8A8_UNORM,
180						   PIPE_TEXTURE_2D, i,
181                                                   PIPE_BIND_RENDER_TARGET)) {
182            msaa_samples_array[msaa_samples_factor] = i;
183            msaa_samples_factor++;
184         }
185      }
186
187      configs_a8r8g8b8 = driCreateConfigs(GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV,
188                                          depth_bits_array,
189                                          stencil_bits_array,
190                                          depth_buffer_factor,
191                                          back_buffer_modes,
192                                          back_buffer_factor,
193                                          msaa_samples_array,
194                                          msaa_samples_factor,
195                                          GL_TRUE);
196   }
197
198   if (pf_x8r8g8b8) {
199      msaa_samples_factor = 1;
200      for (i = 2; i <= msaa_samples_max; i++) {
201         if (p_screen->is_format_supported(p_screen, PIPE_FORMAT_B8G8R8X8_UNORM,
202						   PIPE_TEXTURE_2D, i,
203                                                   PIPE_BIND_RENDER_TARGET)) {
204            msaa_samples_array[msaa_samples_factor] = i;
205            msaa_samples_factor++;
206         }
207      }
208
209      configs_x8r8g8b8 = driCreateConfigs(GL_BGR, GL_UNSIGNED_INT_8_8_8_8_REV,
210                                          depth_bits_array,
211                                          stencil_bits_array,
212                                          depth_buffer_factor,
213                                          back_buffer_modes,
214                                          back_buffer_factor,
215                                          msaa_samples_array,
216                                          msaa_samples_factor,
217                                          GL_TRUE);
218   }
219
220   if (pixel_bits == 16) {
221      configs = configs_r5g6b5;
222      if (configs_a8r8g8b8)
223         configs = configs ? driConcatConfigs(configs, configs_a8r8g8b8) : configs_a8r8g8b8;
224      if (configs_x8r8g8b8)
225	 configs = configs ? driConcatConfigs(configs, configs_x8r8g8b8) : configs_x8r8g8b8;
226   } else {
227      configs = configs_a8r8g8b8;
228      if (configs_x8r8g8b8)
229	 configs = configs ? driConcatConfigs(configs, configs_x8r8g8b8) : configs_x8r8g8b8;
230      if (configs_r5g6b5)
231         configs = configs ? driConcatConfigs(configs, configs_r5g6b5) : configs_r5g6b5;
232   }
233
234   if (configs == NULL) {
235      debug_printf("%s: driCreateConfigs failed\n", __FUNCTION__);
236      return NULL;
237   }
238
239   return (const __DRIconfig **)configs;
240}
241
242/**
243 * Roughly the converse of dri_fill_in_modes.
244 */
245void
246dri_fill_st_visual(struct st_visual *stvis, struct dri_screen *screen,
247                   const struct gl_config *mode)
248{
249   memset(stvis, 0, sizeof(*stvis));
250
251   if (!mode)
252      return;
253
254   stvis->samples = mode->samples;
255
256   if (mode->redBits == 8) {
257      if (mode->alphaBits == 8)
258         stvis->color_format = PIPE_FORMAT_B8G8R8A8_UNORM;
259      else
260         stvis->color_format = PIPE_FORMAT_B8G8R8X8_UNORM;
261   } else {
262      stvis->color_format = PIPE_FORMAT_B5G6R5_UNORM;
263   }
264
265   switch (mode->depthBits) {
266   default:
267   case 0:
268      stvis->depth_stencil_format = PIPE_FORMAT_NONE;
269      break;
270   case 16:
271      stvis->depth_stencil_format = PIPE_FORMAT_Z16_UNORM;
272      break;
273   case 24:
274      if (mode->stencilBits == 0) {
275	 stvis->depth_stencil_format = (screen->d_depth_bits_last) ?
276                                          PIPE_FORMAT_Z24X8_UNORM:
277                                          PIPE_FORMAT_X8Z24_UNORM;
278      } else {
279	 stvis->depth_stencil_format = (screen->sd_depth_bits_last) ?
280                                          PIPE_FORMAT_Z24_UNORM_S8_UINT:
281                                          PIPE_FORMAT_S8_UINT_Z24_UNORM;
282      }
283      break;
284   case 32:
285      stvis->depth_stencil_format = PIPE_FORMAT_Z32_UNORM;
286      break;
287   }
288
289   stvis->accum_format = (mode->haveAccumBuffer) ?
290      PIPE_FORMAT_R16G16B16A16_SNORM : PIPE_FORMAT_NONE;
291
292   stvis->buffer_mask |= ST_ATTACHMENT_FRONT_LEFT_MASK;
293   stvis->render_buffer = ST_ATTACHMENT_FRONT_LEFT;
294   if (mode->doubleBufferMode) {
295      stvis->buffer_mask |= ST_ATTACHMENT_BACK_LEFT_MASK;
296      stvis->render_buffer = ST_ATTACHMENT_BACK_LEFT;
297   }
298   if (mode->stereoMode) {
299      stvis->buffer_mask |= ST_ATTACHMENT_FRONT_RIGHT_MASK;
300      if (mode->doubleBufferMode)
301         stvis->buffer_mask |= ST_ATTACHMENT_BACK_RIGHT_MASK;
302   }
303
304   if (mode->haveDepthBuffer || mode->haveStencilBuffer)
305      stvis->buffer_mask |= ST_ATTACHMENT_DEPTH_STENCIL_MASK;
306   /* let the state tracker allocate the accum buffer */
307}
308
309static boolean
310dri_get_egl_image(struct st_manager *smapi,
311                  void *egl_image,
312                  struct st_egl_image *stimg)
313{
314   struct dri_screen *screen = (struct dri_screen *)smapi;
315   __DRIimage *img = NULL;
316
317   if (screen->lookup_egl_image) {
318      img = screen->lookup_egl_image(screen, egl_image);
319   }
320
321   if (!img)
322      return FALSE;
323
324   stimg->texture = NULL;
325   pipe_resource_reference(&stimg->texture, img->texture);
326   stimg->level = img->level;
327   stimg->layer = img->layer;
328
329   return TRUE;
330}
331
332static int
333dri_get_param(struct st_manager *smapi,
334              enum st_manager_param param)
335{
336   struct dri_screen *screen = (struct dri_screen *)smapi;
337
338   switch(param) {
339   case ST_MANAGER_BROKEN_INVALIDATE:
340      return screen->broken_invalidate;
341   default:
342      return 0;
343   }
344}
345
346static void
347dri_destroy_option_cache(struct dri_screen * screen)
348{
349   int i;
350
351   if (screen->optionCache.info) {
352      for (i = 0; i < (1 << screen->optionCache.tableSize); ++i) {
353         FREE(screen->optionCache.info[i].name);
354         FREE(screen->optionCache.info[i].ranges);
355      }
356      FREE(screen->optionCache.info);
357   }
358
359   FREE(screen->optionCache.values);
360}
361
362void
363dri_destroy_screen_helper(struct dri_screen * screen)
364{
365   if (screen->st_api && screen->st_api->destroy)
366      screen->st_api->destroy(screen->st_api);
367
368   if (screen->base.screen)
369      screen->base.screen->destroy(screen->base.screen);
370
371   dri_destroy_option_cache(screen);
372}
373
374void
375dri_destroy_screen(__DRIscreen * sPriv)
376{
377   struct dri_screen *screen = dri_screen(sPriv);
378
379   dri_destroy_screen_helper(screen);
380
381   FREE(screen);
382   sPriv->driverPrivate = NULL;
383   sPriv->extensions = NULL;
384}
385
386const __DRIconfig **
387dri_init_screen_helper(struct dri_screen *screen,
388                       struct pipe_screen *pscreen,
389                       unsigned pixel_bits)
390{
391   screen->base.screen = pscreen;
392   if (!screen->base.screen) {
393      debug_printf("%s: failed to create pipe_screen\n", __FUNCTION__);
394      return NULL;
395   }
396
397   screen->base.get_egl_image = dri_get_egl_image;
398   screen->base.get_param = dri_get_param;
399
400   screen->st_api = st_gl_api_create();
401   if (!screen->st_api)
402      return NULL;
403
404   if(pscreen->get_param(pscreen, PIPE_CAP_NPOT_TEXTURES))
405      screen->target = PIPE_TEXTURE_2D;
406   else
407      screen->target = PIPE_TEXTURE_RECT;
408
409   driParseOptionInfo(&screen->optionCache,
410                      __driConfigOptions, __driNConfigOptions);
411
412   return dri_fill_in_modes(screen, pixel_bits);
413}
414
415/* vim: set sw=3 ts=8 sts=3 expandtab: */
416