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 "vblank.h"
  34 #include "xmlpool.h"
  35
  36 #include "dri_screen.h"
  37 #include "dri_context.h"
  38 #include "dri_drawable.h"
  39
  40 #include "pipe/p_screen.h"
  41 #include "pipe/p_format.h"
  42 #include "state_tracker/drm_api.h"
  43 #include "state_tracker/dri1_api.h"
  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    const uint __driNConfigOptions = 3;
  57
  58 static const __DRItexBufferExtension dri2TexBufferExtension = {
  59     { __DRI_TEX_BUFFER, __DRI_TEX_BUFFER_VERSION },
  60    dri2_set_tex_buffer,
  61    dri2_set_tex_buffer2,
  62 };
  63
  64 static void
  65 dri2_flush_drawable(__DRIdrawable *draw)
  66 {
  67 }
  68
  69 static const __DRI2flushExtension dri2FlushExtension = {
  70     { __DRI2_FLUSH, __DRI2_FLUSH_VERSION },
  71     dri2_flush_drawable,
  72     dri2InvalidateDrawable,
  73 };
  74
  75    static const __DRIextension *dri_screen_extensions[] = {
  76       &driReadDrawableExtension,
  77       &driCopySubBufferExtension.base,
  78       &driSwapControlExtension.base,
  79       &driFrameTrackingExtension.base,
  80       &driMediaStreamCounterExtension.base,
  81       &dri2TexBufferExtension.base,
  82       &dri2FlushExtension.base,
  83       NULL
  84    };
  85
  86 struct dri1_api *__dri1_api_hooks = NULL;
  87
  88 static const __DRIconfig **
  89 dri_fill_in_modes(struct dri_screen *screen,
  90                   unsigned pixel_bits)
  91 {
  92    __DRIconfig **configs = NULL;
  93    unsigned num_modes;
  94    uint8_t depth_bits_array[5];
  95    uint8_t stencil_bits_array[5];
  96    uint8_t msaa_samples_array[2];
  97    unsigned depth_buffer_factor;
  98    unsigned back_buffer_factor;
  99    unsigned msaa_samples_factor;
 100    struct pipe_screen *p_screen = screen->pipe_screen;
 101    boolean pf_r5g6b5, pf_a8r8g8b8, pf_x8r8g8b8;
 102    boolean pf_z16, pf_x8z24, pf_z24x8, pf_s8z24, pf_z24s8, pf_z32;
 103
 104    static const GLenum back_buffer_modes[] = {
 105       GLX_NONE, GLX_SWAP_UNDEFINED_OML, GLX_SWAP_COPY_OML
 106    };
 107
 108    depth_bits_array[0] = 0;
 109    stencil_bits_array[0] = 0;
 110    depth_buffer_factor = 1;
 111
 112    pf_x8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_X8Z24_UNORM,
 113                                             PIPE_TEXTURE_2D,
 114                                             PIPE_TEXTURE_USAGE_DEPTH_STENCIL, 0);
 115    pf_z24x8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24X8_UNORM,
 116                                             PIPE_TEXTURE_2D,
 117                                             PIPE_TEXTURE_USAGE_DEPTH_STENCIL, 0);
 118    pf_s8z24 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_S8Z24_UNORM,
 119                                             PIPE_TEXTURE_2D,
 120                                             PIPE_TEXTURE_USAGE_DEPTH_STENCIL, 0);
 121    pf_z24s8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z24S8_UNORM,
 122                                             PIPE_TEXTURE_2D,
 123                                             PIPE_TEXTURE_USAGE_DEPTH_STENCIL, 0);
 124    pf_a8r8g8b8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_A8R8G8B8_UNORM,
 125                                                PIPE_TEXTURE_2D,
 126                                                PIPE_TEXTURE_USAGE_RENDER_TARGET, 0);
 127    pf_x8r8g8b8 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_X8R8G8B8_UNORM,
 128                                                PIPE_TEXTURE_2D,
 129                                                PIPE_TEXTURE_USAGE_RENDER_TARGET, 0);
 130
 131    /* we support buffers with different depths only if we can tell the driver
 132     * the actual depth of each of them. */
 133    if (screen->sPriv->dri2.loader
 134        && (screen->sPriv->dri2.loader->base.version > 2)
 135        && (screen->sPriv->dri2.loader->getBuffersWithFormat != NULL)) {
 136       pf_z16 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z16_UNORM,
 137                                              PIPE_TEXTURE_2D,
 138                                              PIPE_TEXTURE_USAGE_DEPTH_STENCIL, 0);
 139       pf_z32 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_Z32_UNORM,
 140                                              PIPE_TEXTURE_2D,
 141                                              PIPE_TEXTURE_USAGE_DEPTH_STENCIL, 0);
 142       pf_r5g6b5 = p_screen->is_format_supported(p_screen, PIPE_FORMAT_R5G6B5_UNORM,
 143                                                 PIPE_TEXTURE_2D,
 144                                                 PIPE_TEXTURE_USAGE_RENDER_TARGET, 0);
 145    } else {
 146       pf_z16 = FALSE;
 147       pf_z32 = FALSE;
 148       pf_r5g6b5 = FALSE;
 149    }
 150
 151    if (pf_z16) {
 152       depth_bits_array[depth_buffer_factor] = 16;
 153       stencil_bits_array[depth_buffer_factor++] = 0;
 154    }
 155    if (pf_x8z24 || pf_z24x8) {
 156       depth_bits_array[depth_buffer_factor] = 24;
 157       stencil_bits_array[depth_buffer_factor++] = 0;
 158       screen->d_depth_bits_last = pf_x8z24;
 159    }
 160    if (pf_s8z24 || pf_z24s8) {
 161       depth_bits_array[depth_buffer_factor] = 24;
 162       stencil_bits_array[depth_buffer_factor++] = 8;
 163       screen->sd_depth_bits_last = pf_s8z24;
 164    }
 165    if (pf_z32) {
 166       depth_bits_array[depth_buffer_factor] = 32;
 167       stencil_bits_array[depth_buffer_factor++] = 0;
 168    }
 169
 170    msaa_samples_array[0] = 0;
 171    msaa_samples_array[1] = 4;
 172    back_buffer_factor = 3;
 173    msaa_samples_factor = 2;
 174
 175    num_modes =
 176       depth_buffer_factor * back_buffer_factor * msaa_samples_factor * 4;
 177
 178    if (pixel_bits == 16 && pf_r5g6b5) {
 179       configs = driCreateConfigs(GL_RGB, GL_UNSIGNED_SHORT_5_6_5,
 180                                  depth_bits_array, stencil_bits_array,
 181                                  depth_buffer_factor, back_buffer_modes,
 182                                  back_buffer_factor,
 183                                  msaa_samples_array, msaa_samples_factor,
 184                                  GL_TRUE);
 185    } else {
 186       __DRIconfig **configs_a8r8g8b8 = NULL;
 187       __DRIconfig **configs_x8r8g8b8 = NULL;
 188
 189       if (pf_a8r8g8b8)
 190          configs_a8r8g8b8 = driCreateConfigs(GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV,
 191                                              depth_bits_array,
 192                                              stencil_bits_array,
 193                                              depth_buffer_factor,
 194                                              back_buffer_modes,
 195                                              back_buffer_factor,
 196                                              msaa_samples_array,
 197                                              msaa_samples_factor,
 198                                              GL_TRUE);
 199       if (pf_x8r8g8b8)
 200          configs_x8r8g8b8 = driCreateConfigs(GL_BGR, GL_UNSIGNED_INT_8_8_8_8_REV,
 201                                              depth_bits_array,
 202                                              stencil_bits_array,
 203                                              depth_buffer_factor,
 204                                              back_buffer_modes,
 205                                              back_buffer_factor,
 206                                              msaa_samples_array,
 207                                              msaa_samples_factor,
 208                                              GL_TRUE);
 209
 210       if (configs_a8r8g8b8 && configs_x8r8g8b8)
 211          configs = driConcatConfigs(configs_x8r8g8b8, configs_a8r8g8b8);
 212       else if (configs_a8r8g8b8)
 213          configs = configs_a8r8g8b8;
 214       else if (configs_x8r8g8b8)
 215          configs = configs_x8r8g8b8;
 216       else
 217          configs = NULL;
 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  * Get information about previous buffer swaps.
 230  */
 231 static int
 232 dri_get_swap_info(__DRIdrawable * dPriv, __DRIswapInfo * sInfo)
 233 {
 234    if (dPriv == NULL || dPriv->driverPrivate == NULL || sInfo == NULL)
 235       return -1;
 236    else
 237       return 0;
 238 }
 239
 240 static INLINE void
 241 dri_copy_version(struct dri1_api_version *dst,
 242                  const struct __DRIversionRec *src)
 243 {
 244    dst->major = src->major;
 245    dst->minor = src->minor;
 246    dst->patch_level = src->patch;
 247 }
 248
 249 static const __DRIconfig **
 250 dri_init_screen(__DRIscreen * sPriv)
 251 {
 252    struct dri_screen *screen;
 253    const __DRIconfig **configs;
 254    struct dri1_create_screen_arg arg;
 255
 256    screen = CALLOC_STRUCT(dri_screen);
 257    if (!screen)
 258       return NULL;
 259
 260    screen->api = drm_api_create();
 261    screen->sPriv = sPriv;
 262    screen->fd = sPriv->fd;
 263    screen->drmLock = (drmLock *) & sPriv->pSAREA->lock;
 264
 265    sPriv->private = (void *)screen;
 266    sPriv->extensions = dri_screen_extensions;
 267
 268    arg.base.mode = DRM_CREATE_DRI1;
 269    arg.lf = &dri1_lf;
 270    arg.ddx_info = sPriv->pDevPriv;
 271    arg.ddx_info_size = sPriv->devPrivSize;
 272    arg.sarea = sPriv->pSAREA;
 273    dri_copy_version(&arg.ddx_version, &sPriv->ddx_version);
 274    dri_copy_version(&arg.dri_version, &sPriv->dri_version);
 275    dri_copy_version(&arg.drm_version, &sPriv->drm_version);
 276    arg.api = NULL;
 277
 278    screen->pipe_screen = screen->api->create_screen(screen->api, screen->fd, &arg.base);
 279
 280    if (!screen->pipe_screen || !arg.api) {
 281       debug_printf("%s: failed to create dri1 screen\n", __FUNCTION__);
 282       goto out_no_screen;
 283    }
 284
 285    __dri1_api_hooks = arg.api;
 286
 287    screen->pipe_screen->flush_frontbuffer = dri1_flush_frontbuffer;
 288    driParseOptionInfo(&screen->optionCache,
 289                       __driConfigOptions, __driNConfigOptions);
 290
 291    /**
 292     * FIXME: If the driver supports format conversion swapbuffer blits, we might
 293     * want to support other color bit depths than the server is currently
 294     * using.
 295     */
 296
 297    configs = dri_fill_in_modes(screen, sPriv->fbBPP);
 298    if (!configs)
 299       goto out_no_configs;
 300
 301    return configs;
 302  out_no_configs:
 303    screen->pipe_screen->destroy(screen->pipe_screen);
 304  out_no_screen:
 305    FREE(screen);
 306    return NULL;
 307 }
 308
 309 /**
 310  * This is the driver specific part of the createNewScreen entry point.
 311  *
 312  * Returns the __GLcontextModes supported by this driver.
 313  */
 314 static const __DRIconfig **
 315 dri_init_screen2(__DRIscreen * sPriv)
 316 {
 317    struct dri_screen *screen;
 318    struct drm_create_screen_arg arg;
 319    const __DRIdri2LoaderExtension *dri2_ext =
 320      sPriv->dri2.loader;
 321
 322    screen = CALLOC_STRUCT(dri_screen);
 323    if (!screen)
 324       goto fail;
 325
 326    screen->api = drm_api_create();
 327    screen->sPriv = sPriv;
 328    screen->fd = sPriv->fd;
 329    sPriv->private = (void *)screen;
 330    sPriv->extensions = dri_screen_extensions;
 331    arg.mode = DRM_CREATE_NORMAL;
 332
 333    screen->pipe_screen = screen->api->create_screen(screen->api, screen->fd, &arg);
 334    if (!screen->pipe_screen) {
 335       debug_printf("%s: failed to create pipe_screen\n", __FUNCTION__);
 336       goto fail;
 337    }
 338
 339    /* We need to hook in here */
 340    screen->pipe_screen->update_buffer = dri_update_buffer;
 341    screen->pipe_screen->flush_frontbuffer = dri_flush_frontbuffer;
 342
 343    driParseOptionInfo(&screen->optionCache,
 344                       __driConfigOptions, __driNConfigOptions);
 345
 346    screen->auto_fake_front = dri2_ext->base.version >= 3 &&
 347       dri2_ext->getBuffersWithFormat != NULL;
 348
 349    return dri_fill_in_modes(screen, 32);
 350  fail:
 351    return NULL;
 352 }
 353
 354 static void
 355 dri_destroy_screen(__DRIscreen * sPriv)
 356 {
 357    struct dri_screen *screen = dri_screen(sPriv);
 358    int i;
 359
 360    screen->pipe_screen->destroy(screen->pipe_screen);
 361
 362    for (i = 0; i < (1 << screen->optionCache.tableSize); ++i) {
 363       FREE(screen->optionCache.info[i].name);
 364       FREE(screen->optionCache.info[i].ranges);
 365    }
 366
 367    FREE(screen->optionCache.info);
 368    FREE(screen->optionCache.values);
 369
 370    FREE(screen);
 371    sPriv->private = NULL;
 372 }
 373
 374 PUBLIC const struct __DriverAPIRec driDriverAPI = {
 375    .InitScreen = dri_init_screen,
 376    .DestroyScreen = dri_destroy_screen,
 377    .CreateContext = dri_create_context,
 378    .DestroyContext = dri_destroy_context,
 379    .CreateBuffer = dri_create_buffer,
 380    .DestroyBuffer = dri_destroy_buffer,
 381    .SwapBuffers = dri_swap_buffers,
 382    .MakeCurrent = dri_make_current,
 383    .UnbindContext = dri_unbind_context,
 384    .GetSwapInfo = dri_get_swap_info,
 385    .GetDrawableMSC = driDrawableGetMSC32,
 386    .WaitForMSC = driWaitForMSC32,
 387    .CopySubBuffer = dri_copy_sub_buffer,
 388    .InitScreen = dri_init_screen,
 389    .InitScreen2 = dri_init_screen2,
 390 };
 391
 392 /* This is the table of extensions that the loader will dlsym() for. */
 393 PUBLIC const __DRIextension *__driDriverExtensions[] = {
 394     &driCoreExtension.base,
 395     &driLegacyExtension.base,
 396     &driDRI2Extension.base,
 397     NULL
 398 };
 399
 400 /* vim: set sw=3 ts=8 sts=3 expandtab: */