src/gallium/state_trackers/dri/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
  37 #include "util/u_inlines.h"
  38 #include "pipe/p_screen.h"
  39 #include "pipe/p_format.h"
  40 #include "pipe-loader/pipe_loader.h"
  41 #include "state_tracker/st_gl_api.h" /* for st_gl_api_create */
  42 #include "state_tracker/drm_driver.h"
  43
  44 #include "util/u_debug.h"
  45 #include "util/u_format_s3tc.h"
  46
  47 #define MSAA_VISUAL_MAX_SAMPLES 32
  48
  49 #undef false
  50
  51 const __DRIconfigOptionsExtension gallium_config_options = {
  52    .base = { __DRI_CONFIG_OPTIONS, 1 },
  53    .xml =
  54
  55    DRI_CONF_BEGIN
  56       DRI_CONF_SECTION_QUALITY
  57          DRI_CONF_FORCE_S3TC_ENABLE("false")
  58          DRI_CONF_PP_CELSHADE(0)
  59          DRI_CONF_PP_NORED(0)
  60          DRI_CONF_PP_NOGREEN(0)
  61          DRI_CONF_PP_NOBLUE(0)
  62          DRI_CONF_PP_JIMENEZMLAA(0, 0, 32)
  63          DRI_CONF_PP_JIMENEZMLAA_COLOR(0, 0, 32)
  64       DRI_CONF_SECTION_END
  65
  66       DRI_CONF_SECTION_DEBUG
  67          DRI_CONF_FORCE_GLSL_EXTENSIONS_WARN("false")
  68          DRI_CONF_DISABLE_GLSL_LINE_CONTINUATIONS("false")
  69          DRI_CONF_DISABLE_BLEND_FUNC_EXTENDED("false")
  70          DRI_CONF_DISABLE_SHADER_BIT_ENCODING("false")
  71          DRI_CONF_FORCE_GLSL_VERSION(0)
  72          DRI_CONF_ALLOW_GLSL_EXTENSION_DIRECTIVE_MIDSHADER("false")
  73       DRI_CONF_SECTION_END
  74
  75       DRI_CONF_SECTION_MISCELLANEOUS
  76          DRI_CONF_ALWAYS_HAVE_DEPTH_BUFFER("false")
  77          DRI_CONF_GLSL_ZERO_INIT("false")
  78       DRI_CONF_SECTION_END
  79    DRI_CONF_END
  80 };
  81
  82 #define false 0
  83
  84 static void
  85 dri_fill_st_options(struct st_config_options *options,
  86                     const struct driOptionCache * optionCache)
  87 {
  88    options->disable_blend_func_extended =
  89       driQueryOptionb(optionCache, "disable_blend_func_extended");
  90    options->disable_glsl_line_continuations =
  91       driQueryOptionb(optionCache, "disable_glsl_line_continuations");
  92    options->disable_shader_bit_encoding =
  93       driQueryOptionb(optionCache, "disable_shader_bit_encoding");
  94    options->force_glsl_extensions_warn =
  95       driQueryOptionb(optionCache, "force_glsl_extensions_warn");
  96    options->force_glsl_version =
  97       driQueryOptioni(optionCache, "force_glsl_version");
  98    options->force_s3tc_enable =
  99       driQueryOptionb(optionCache, "force_s3tc_enable");
 100    options->allow_glsl_extension_directive_midshader =
 101       driQueryOptionb(optionCache, "allow_glsl_extension_directive_midshader");
 102    options->glsl_zero_init = driQueryOptionb(optionCache, "glsl_zero_init");
 103 }
 104
 105 static const __DRIconfig **
 106 dri_fill_in_modes(struct dri_screen *screen)
 107 {
 108    static const mesa_format mesa_formats[] = {
 109       MESA_FORMAT_B8G8R8A8_UNORM,
 110       MESA_FORMAT_B8G8R8X8_UNORM,
 111       MESA_FORMAT_B8G8R8A8_SRGB,
 112       MESA_FORMAT_B8G8R8X8_SRGB,
 113       MESA_FORMAT_B5G6R5_UNORM,
 114    };
 115    static const enum pipe_format pipe_formats[] = {
 116       PIPE_FORMAT_BGRA8888_UNORM,
 117       PIPE_FORMAT_BGRX8888_UNORM,
 118       PIPE_FORMAT_BGRA8888_SRGB,
 119       PIPE_FORMAT_BGRX8888_SRGB,
 120       PIPE_FORMAT_B5G6R5_UNORM,
 121    };
 122    mesa_format format;
 123    __DRIconfig **configs = NULL;
 124    uint8_t depth_bits_array[5];
 125    uint8_t stencil_bits_array[5];
 126    unsigned depth_buffer_factor;
 127    unsigned msaa_samples_max;
 128    unsigned i;
 129    struct pipe_screen *p_screen = screen->base.screen;
 130    boolean pf_z16, pf_x8z24, pf_z24x8, pf_s8z24, pf_z24s8, pf_z32;
 131    boolean mixed_color_depth;
 132
 133    static const GLenum back_buffer_modes[] = {
 134       GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
 135    };
 136
 137    if (driQueryOptionb(&screen->optionCache, "always_have_depth_buffer")) {
 138       /* all visuals will have a depth buffer */
 139       depth_buffer_factor = 0;
 140    }
 141    else {
 142       depth_bits_array[0] = 0;
 143       stencil_bits_array[0] = 0;
 144       depth_buffer_factor = 1;
 145    }
 146
 147    msaa_samples_max = (screen->st_api->feature_mask & ST_API_FEATURE_MS_VISUALS_MASK)
 148       ? MSAA_VISUAL_MAX_SAMPLES : 1;
 149
 150    pf_x8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24X8_UNORM,
 151                                             PIPE_TEXTURE_2D, 0,
 152                                             PIPE_BIND_DEPTH_STENCIL);
 153    pf_z24x8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_X8Z24_UNORM,
 154                                             PIPE_TEXTURE_2D, 0,
 155                                             PIPE_BIND_DEPTH_STENCIL);
 156    pf_s8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24_UNORM_S8_UINT,
 157                                             PIPE_TEXTURE_2D, 0,
 158                                             PIPE_BIND_DEPTH_STENCIL);
 159    pf_z24s8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_S8_UINT_Z24_UNORM,
 160                                             PIPE_TEXTURE_2D, 0,
 161                                             PIPE_BIND_DEPTH_STENCIL);
 162    pf_z16 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z16_UNORM,
 163                                           PIPE_TEXTURE_2D, 0,
 164                                           PIPE_BIND_DEPTH_STENCIL);
 165    pf_z32 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z32_UNORM,
 166                                           PIPE_TEXTURE_2D, 0,
 167                                           PIPE_BIND_DEPTH_STENCIL);
 168
 169    if (pf_z16) {
 170       depth_bits_array[depth_buffer_factor] = 16;
 171       stencil_bits_array[depth_buffer_factor++] = 0;
 172    }
 173    if (pf_x8z24 || pf_z24x8) {
 174       depth_bits_array[depth_buffer_factor] = 24;
 175       stencil_bits_array[depth_buffer_factor++] = 0;
 176       screen->d_depth_bits_last = pf_x8z24;
 177    }
 178    if (pf_s8z24 || pf_z24s8) {
 179       depth_bits_array[depth_buffer_factor] = 24;
 180       stencil_bits_array[depth_buffer_factor++] = 8;
 181       screen->sd_depth_bits_last = pf_s8z24;
 182    }
 183    if (pf_z32) {
 184       depth_bits_array[depth_buffer_factor] = 32;
 185       stencil_bits_array[depth_buffer_factor++] = 0;
 186    }
 187
 188    mixed_color_depth =
 189       p_screen->get_param(p_screen, PIPE_CAP_MIXED_COLOR_DEPTH_BITS);
 190
 191    assert(ARRAY_SIZE(mesa_formats) == ARRAY_SIZE(pipe_formats));
 192
 193    /* Add configs. */
 194    for (format = 0; format < ARRAY_SIZE(mesa_formats); format++) {
 195       __DRIconfig **new_configs = NULL;
 196       unsigned num_msaa_modes = 0; /* includes a single-sample mode */
 197       uint8_t msaa_modes[MSAA_VISUAL_MAX_SAMPLES];
 198
 199       if (!p_screen->is_format_supported(p_screen, pipe_formats[format],
 200                                          PIPE_TEXTURE_2D, 0,
 201                                          PIPE_BIND_RENDER_TARGET))
 202          continue;
 203
 204       for (i = 1; i <= msaa_samples_max; i++) {
 205          int samples = i > 1 ? i : 0;
 206
 207          if (p_screen->is_format_supported(p_screen, pipe_formats[format],
 208                                            PIPE_TEXTURE_2D, samples,
 209                                            PIPE_BIND_RENDER_TARGET)) {
 210             msaa_modes[num_msaa_modes++] = samples;
 211          }
 212       }
 213
 214       if (num_msaa_modes) {
 215          /* Single-sample configs with an accumulation buffer. */
 216          new_configs = driCreateConfigs(mesa_formats[format],
 217                                         depth_bits_array, stencil_bits_array,
 218                                         depth_buffer_factor, back_buffer_modes,
 219                                         ARRAY_SIZE(back_buffer_modes),
 220                                         msaa_modes, 1,
 221                                         GL_TRUE, !mixed_color_depth);
 222          configs = driConcatConfigs(configs, new_configs);
 223
 224          /* Multi-sample configs without an accumulation buffer. */
 225          if (num_msaa_modes > 1) {
 226             new_configs = driCreateConfigs(mesa_formats[format],
 227                                            depth_bits_array, stencil_bits_array,
 228                                            depth_buffer_factor, back_buffer_modes,
 229                                            ARRAY_SIZE(back_buffer_modes),
 230                                            msaa_modes+1, num_msaa_modes-1,
 231                                            GL_FALSE, !mixed_color_depth);
 232             configs = driConcatConfigs(configs, new_configs);
 233          }
 234       }
 235    }
 236
 237    if (configs == NULL) {
 238       debug_printf("%s: driCreateConfigs failed\n", __FUNCTION__);
 239       return NULL;
 240    }
 241
 242    return (const __DRIconfig **)configs;
 243 }
 244
 245 /**
 246  * Roughly the converse of dri_fill_in_modes.
 247  */
 248 void
 249 dri_fill_st_visual(struct st_visual *stvis, struct dri_screen *screen,
 250                    const struct gl_config *mode)
 251 {
 252    memset(stvis, 0, sizeof(*stvis));
 253
 254    if (!mode)
 255       return;
 256
 257    if (mode->redBits == 8) {
 258       if (mode->alphaBits == 8)
 259          if (mode->sRGBCapable)
 260             stvis->color_format = PIPE_FORMAT_BGRA8888_SRGB;
 261          else
 262             stvis->color_format = PIPE_FORMAT_BGRA8888_UNORM;
 263       else
 264          if (mode->sRGBCapable)
 265             stvis->color_format = PIPE_FORMAT_BGRX8888_SRGB;
 266          else
 267             stvis->color_format = PIPE_FORMAT_BGRX8888_UNORM;
 268    } else {
 269       stvis->color_format = PIPE_FORMAT_B5G6R5_UNORM;
 270    }
 271
 272    if (mode->sampleBuffers) {
 273       stvis->samples = mode->samples;
 274    }
 275
 276    switch (mode->depthBits) {
 277    default:
 278    case 0:
 279       stvis->depth_stencil_format = PIPE_FORMAT_NONE;
 280       break;
 281    case 16:
 282       stvis->depth_stencil_format = PIPE_FORMAT_Z16_UNORM;
 283       break;
 284    case 24:
 285       if (mode->stencilBits == 0) {
 286          stvis->depth_stencil_format = (screen->d_depth_bits_last) ?
 287                                           PIPE_FORMAT_Z24X8_UNORM:
 288                                           PIPE_FORMAT_X8Z24_UNORM;
 289       } else {
 290          stvis->depth_stencil_format = (screen->sd_depth_bits_last) ?
 291                                           PIPE_FORMAT_Z24_UNORM_S8_UINT:
 292                                           PIPE_FORMAT_S8_UINT_Z24_UNORM;
 293       }
 294       break;
 295    case 32:
 296       stvis->depth_stencil_format = PIPE_FORMAT_Z32_UNORM;
 297       break;
 298    }
 299
 300    stvis->accum_format = (mode->haveAccumBuffer) ?
 301       PIPE_FORMAT_R16G16B16A16_SNORM : PIPE_FORMAT_NONE;
 302
 303    stvis->buffer_mask |= ST_ATTACHMENT_FRONT_LEFT_MASK;
 304    stvis->render_buffer = ST_ATTACHMENT_FRONT_LEFT;
 305    if (mode->doubleBufferMode) {
 306       stvis->buffer_mask |= ST_ATTACHMENT_BACK_LEFT_MASK;
 307       stvis->render_buffer = ST_ATTACHMENT_BACK_LEFT;
 308    }
 309    if (mode->stereoMode) {
 310       stvis->buffer_mask |= ST_ATTACHMENT_FRONT_RIGHT_MASK;
 311       if (mode->doubleBufferMode)
 312          stvis->buffer_mask |= ST_ATTACHMENT_BACK_RIGHT_MASK;
 313    }
 314
 315    if (mode->haveDepthBuffer || mode->haveStencilBuffer)
 316       stvis->buffer_mask |= ST_ATTACHMENT_DEPTH_STENCIL_MASK;
 317    /* let the state tracker allocate the accum buffer */
 318 }
 319
 320 static boolean
 321 dri_get_egl_image(struct st_manager *smapi,
 322                   void *egl_image,
 323                   struct st_egl_image *stimg)
 324 {
 325    struct dri_screen *screen = (struct dri_screen *)smapi;
 326    __DRIimage *img = NULL;
 327
 328    if (screen->lookup_egl_image) {
 329       img = screen->lookup_egl_image(screen, egl_image);
 330    }
 331
 332    if (!img)
 333       return FALSE;
 334
 335    stimg->texture = NULL;
 336    pipe_resource_reference(&stimg->texture, img->texture);
 337    switch (img->dri_components) {
 338    case __DRI_IMAGE_COMPONENTS_Y_U_V:
 339       stimg->format = PIPE_FORMAT_IYUV;
 340       break;
 341    case __DRI_IMAGE_COMPONENTS_Y_UV:
 342       stimg->format = PIPE_FORMAT_NV12;
 343       break;
 344    default:
 345       stimg->format = img->texture->format;
 346       break;
 347    }
 348    stimg->level = img->level;
 349    stimg->layer = img->layer;
 350
 351    return TRUE;
 352 }
 353
 354 static int
 355 dri_get_param(struct st_manager *smapi,
 356               enum st_manager_param param)
 357 {
 358    struct dri_screen *screen = (struct dri_screen *)smapi;
 359
 360    switch(param) {
 361    case ST_MANAGER_BROKEN_INVALIDATE:
 362       return screen->broken_invalidate;
 363    default:
 364       return 0;
 365    }
 366 }
 367
 368 static void
 369 dri_destroy_option_cache(struct dri_screen * screen)
 370 {
 371    int i;
 372
 373    if (screen->optionCache.info) {
 374       for (i = 0; i < (1 << screen->optionCache.tableSize); ++i) {
 375          free(screen->optionCache.info[i].name);
 376          free(screen->optionCache.info[i].ranges);
 377       }
 378       free(screen->optionCache.info);
 379    }
 380
 381    free(screen->optionCache.values);
 382
 383    /* Default values are copied to screen->optionCache->values in
 384     * initOptionCache. The info field, however, is a pointer copy, so don't free
 385     * that twice.
 386     */
 387    free(screen->optionCacheDefaults.values);
 388 }
 389
 390 void
 391 dri_destroy_screen_helper(struct dri_screen * screen)
 392 {
 393    if (screen->st_api && screen->st_api->destroy)
 394       screen->st_api->destroy(screen->st_api);
 395
 396    if (screen->base.screen)
 397       screen->base.screen->destroy(screen->base.screen);
 398
 399    dri_destroy_option_cache(screen);
 400    pipe_mutex_destroy(screen->opencl_func_mutex);
 401 }
 402
 403 void
 404 dri_destroy_screen(__DRIscreen * sPriv)
 405 {
 406    struct dri_screen *screen = dri_screen(sPriv);
 407
 408    dri_destroy_screen_helper(screen);
 409
 410    pipe_loader_release(&screen->dev, 1);
 411
 412    free(screen);
 413    sPriv->driverPrivate = NULL;
 414    sPriv->extensions = NULL;
 415 }
 416
 417 static void
 418 dri_postprocessing_init(struct dri_screen *screen)
 419 {
 420    unsigned i;
 421
 422    for (i = 0; i < PP_FILTERS; i++) {
 423       screen->pp_enabled[i] = driQueryOptioni(&screen->optionCache,
 424                                               pp_filters[i].name);
 425    }
 426 }
 427
 428 const __DRIconfig **
 429 dri_init_screen_helper(struct dri_screen *screen,
 430                        struct pipe_screen *pscreen,
 431                        const char* driver_name)
 432 {
 433    screen->base.screen = pscreen;
 434    screen->base.get_egl_image = dri_get_egl_image;
 435    screen->base.get_param = dri_get_param;
 436
 437    screen->st_api = st_gl_api_create();
 438    if (!screen->st_api)
 439       return NULL;
 440
 441    if(pscreen->get_param(pscreen, PIPE_CAP_NPOT_TEXTURES))
 442       screen->target = PIPE_TEXTURE_2D;
 443    else
 444       screen->target = PIPE_TEXTURE_RECT;
 445
 446    driParseOptionInfo(&screen->optionCacheDefaults, gallium_config_options.xml);
 447
 448    driParseConfigFiles(&screen->optionCache,
 449                        &screen->optionCacheDefaults,
 450                        screen->sPriv->myNum,
 451                        driver_name);
 452
 453    dri_fill_st_options(&screen->options, &screen->optionCache);
 454
 455    /* Handle force_s3tc_enable. */
 456    if (!util_format_s3tc_enabled && screen->options.force_s3tc_enable) {
 457       /* Ensure libtxc_dxtn has been loaded if available.
 458        * Forcing S3TC on before calling this would prevent loading
 459        * the library.
 460        * This is just a precaution, the driver should have called it
 461        * already.
 462        */
 463       util_format_s3tc_init();
 464
 465       util_format_s3tc_enabled = TRUE;
 466    }
 467
 468    dri_postprocessing_init(screen);
 469
 470    screen->st_api->query_versions(screen->st_api, &screen->base,
 471                                   &screen->options,
 472                                   &screen->sPriv->max_gl_core_version,
 473                                   &screen->sPriv->max_gl_compat_version,
 474                                   &screen->sPriv->max_gl_es1_version,
 475                                   &screen->sPriv->max_gl_es2_version);
 476
 477    return dri_fill_in_modes(screen);
 478 }
 479
 480 /* vim: set sw=3 ts=8 sts=3 expandtab: */