src/gallium/state_trackers/dri/common/dri_screen.c

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