src/mesa/drivers/dri/i965/intel_tex_image.c

   1
   2 #include "main/glheader.h"
   3 #include "main/macros.h"
   4 #include "main/mtypes.h"
   5 #include "main/enums.h"
   6 #include "main/bufferobj.h"
   7 #include "main/context.h"
   8 #include "main/formats.h"
   9 #include "main/image.h"
  10 #include "main/pbo.h"
  11 #include "main/renderbuffer.h"
  12 #include "main/texcompress.h"
  13 #include "main/texgetimage.h"
  14 #include "main/texobj.h"
  15 #include "main/teximage.h"
  16 #include "main/texstore.h"
  17
  18 #include "intel_mipmap_tree.h"
  19 #include "intel_buffer_objects.h"
  20 #include "intel_batchbuffer.h"
  21 #include "intel_tex.h"
  22 #include "intel_blit.h"
  23 #include "intel_fbo.h"
  24
  25 #include "brw_context.h"
  26
  27 #define FILE_DEBUG_FLAG DEBUG_TEXTURE
  28
  29 /* Work back from the specified level of the image to the baselevel and create a
  30  * miptree of that size.
  31  */
  32 struct intel_mipmap_tree *
  33 intel_miptree_create_for_teximage(struct brw_context *brw,
  34                                   struct intel_texture_object *intelObj,
  35                                   struct intel_texture_image *intelImage,
  36                                   bool expect_accelerated_upload)
  37 {
  38    GLuint firstLevel;
  39    GLuint lastLevel;
  40    int width, height, depth;
  41    GLuint i;
  42
  43    intel_miptree_get_dimensions_for_image(&intelImage->base.Base,
  44                                           &width, &height, &depth);
  45
  46    DBG("%s\n", __FUNCTION__);
  47
  48    if (intelImage->base.Base.Level > intelObj->base.BaseLevel &&
  49        (width == 1 ||
  50         (intelObj->base.Target != GL_TEXTURE_1D && height == 1) ||
  51         (intelObj->base.Target == GL_TEXTURE_3D && depth == 1))) {
  52       /* For this combination, we're at some lower mipmap level and
  53        * some important dimension is 1.  We can't extrapolate up to a
  54        * likely base level width/height/depth for a full mipmap stack
  55        * from this info, so just allocate this one level.
  56        */
  57       firstLevel = intelImage->base.Base.Level;
  58       lastLevel = intelImage->base.Base.Level;
  59    } else {
  60       /* If this image disrespects BaseLevel, allocate from level zero.
  61        * Usually BaseLevel == 0, so it's unlikely to happen.
  62        */
  63       if (intelImage->base.Base.Level < intelObj->base.BaseLevel)
  64          firstLevel = 0;
  65       else
  66          firstLevel = intelObj->base.BaseLevel;
  67
  68       /* Figure out image dimensions at start level. */
  69       for (i = intelImage->base.Base.Level; i > firstLevel; i--) {
  70          width <<= 1;
  71          if (height != 1)
  72             height <<= 1;
  73          if (depth != 1)
  74             depth <<= 1;
  75       }
  76
  77       /* Guess a reasonable value for lastLevel.  This is probably going
  78        * to be wrong fairly often and might mean that we have to look at
  79        * resizable buffers, or require that buffers implement lazy
  80        * pagetable arrangements.
  81        */
  82       if ((intelObj->base.Sampler.MinFilter == GL_NEAREST ||
  83            intelObj->base.Sampler.MinFilter == GL_LINEAR) &&
  84           intelImage->base.Base.Level == firstLevel &&
  85           firstLevel == 0) {
  86          lastLevel = firstLevel;
  87       } else {
  88          lastLevel = (firstLevel +
  89                       _mesa_get_tex_max_num_levels(intelObj->base.Target,
  90                                                    width, height, depth) - 1);
  91       }
  92    }
  93
  94    return intel_miptree_create(brw,
  95                                intelObj->base.Target,
  96                                intelImage->base.Base.TexFormat,
  97                                firstLevel,
  98                                lastLevel,
  99                                width,
 100                                height,
 101                                depth,
 102                                expect_accelerated_upload,
 103                                intelImage->base.Base.NumSamples,
 104                                INTEL_MIPTREE_TILING_ANY);
 105 }
 106
 107 /* XXX: Do this for TexSubImage also:
 108  */
 109 static bool
 110 try_pbo_upload(struct gl_context *ctx,
 111                struct gl_texture_image *image,
 112                const struct gl_pixelstore_attrib *unpack,
 113                GLenum format, GLenum type, const void *pixels)
 114 {
 115    struct intel_texture_image *intelImage = intel_texture_image(image);
 116    struct brw_context *brw = brw_context(ctx);
 117    struct intel_buffer_object *pbo = intel_buffer_object(unpack->BufferObj);
 118    GLuint src_offset;
 119    drm_intel_bo *src_buffer;
 120
 121    if (!_mesa_is_bufferobj(unpack->BufferObj))
 122       return false;
 123
 124    DBG("trying pbo upload\n");
 125
 126    if (ctx->_ImageTransferState || unpack->SkipPixels || unpack->SkipRows) {
 127       DBG("%s: image transfer\n", __FUNCTION__);
 128       return false;
 129    }
 130
 131    ctx->Driver.AllocTextureImageBuffer(ctx, image);
 132
 133    if (!intelImage->mt) {
 134       DBG("%s: no miptree\n", __FUNCTION__);
 135       return false;
 136    }
 137
 138    if (!_mesa_format_matches_format_and_type(intelImage->mt->format,
 139                                              format, type, false)) {
 140       DBG("%s: format mismatch (upload to %s with format 0x%x, type 0x%x)\n",
 141           __FUNCTION__, _mesa_get_format_name(intelImage->mt->format),
 142           format, type);
 143       return false;
 144    }
 145
 146    if (image->TexObject->Target == GL_TEXTURE_1D_ARRAY ||
 147        image->TexObject->Target == GL_TEXTURE_2D_ARRAY) {
 148       DBG("%s: no support for array textures\n", __FUNCTION__);
 149       return false;
 150    }
 151
 152    src_buffer = intel_bufferobj_source(brw, pbo, 64, &src_offset);
 153    /* note: potential 64-bit ptr to 32-bit int cast */
 154    src_offset += (GLuint) (unsigned long) pixels;
 155
 156    int src_stride =
 157       _mesa_image_row_stride(unpack, image->Width, format, type);
 158
 159    struct intel_mipmap_tree *pbo_mt =
 160       intel_miptree_create_for_bo(brw,
 161                                   src_buffer,
 162                                   intelImage->mt->format,
 163                                   src_offset,
 164                                   image->Width, image->Height,
 165                                   src_stride, I915_TILING_NONE);
 166    if (!pbo_mt)
 167       return false;
 168
 169    if (!intel_miptree_blit(brw,
 170                            pbo_mt, 0, 0,
 171                            0, 0, false,
 172                            intelImage->mt, image->Level, image->Face,
 173                            0, 0, false,
 174                            image->Width, image->Height, GL_COPY)) {
 175       DBG("%s: blit failed\n", __FUNCTION__);
 176       intel_miptree_release(&pbo_mt);
 177       return false;
 178    }
 179
 180    intel_miptree_release(&pbo_mt);
 181
 182    DBG("%s: success\n", __FUNCTION__);
 183    return true;
 184 }
 185
 186 static void
 187 intelTexImage(struct gl_context * ctx,
 188               GLuint dims,
 189               struct gl_texture_image *texImage,
 190               GLenum format, GLenum type, const void *pixels,
 191               const struct gl_pixelstore_attrib *unpack)
 192 {
 193    bool ok;
 194
 195    DBG("%s target %s level %d %dx%dx%d\n", __FUNCTION__,
 196        _mesa_lookup_enum_by_nr(texImage->TexObject->Target),
 197        texImage->Level, texImage->Width, texImage->Height, texImage->Depth);
 198
 199    ok = intel_texsubimage_tiled_memcpy(ctx, dims, texImage,
 200                                        0, 0, 0, /*x,y,z offsets*/
 201                                        texImage->Width,
 202                                        texImage->Height,
 203                                        texImage->Depth,
 204                                        format, type, pixels, unpack,
 205                                        true /*for_glTexImage*/);
 206    if (ok)
 207       return;
 208
 209    /* Attempt to use the blitter for PBO image uploads.
 210     */
 211    if (dims <= 2 &&
 212        try_pbo_upload(ctx, texImage, unpack, format, type, pixels)) {
 213       return;
 214    }
 215
 216    DBG("%s: upload image %dx%dx%d pixels %p\n",
 217        __FUNCTION__, texImage->Width, texImage->Height, texImage->Depth,
 218        pixels);
 219
 220    _mesa_store_teximage(ctx, dims, texImage,
 221                         format, type, pixels, unpack);
 222 }
 223
 224
 225 /**
 226  * Binds a region to a texture image, like it was uploaded by glTexImage2D().
 227  *
 228  * Used for GLX_EXT_texture_from_pixmap and EGL image extensions,
 229  */
 230 static void
 231 intel_set_texture_image_region(struct gl_context *ctx,
 232                                struct gl_texture_image *image,
 233                                struct intel_region *region,
 234                                GLenum target,
 235                                GLenum internalFormat,
 236                                gl_format format,
 237                                uint32_t offset,
 238                                GLuint width,
 239                                GLuint height,
 240                                GLuint tile_x,
 241                                GLuint tile_y)
 242 {
 243    struct brw_context *brw = brw_context(ctx);
 244    struct intel_texture_image *intel_image = intel_texture_image(image);
 245    struct gl_texture_object *texobj = image->TexObject;
 246    struct intel_texture_object *intel_texobj = intel_texture_object(texobj);
 247    uint32_t draw_x, draw_y;
 248
 249    _mesa_init_teximage_fields(&brw->ctx, image,
 250                               width, height, 1,
 251                               0, internalFormat, format);
 252
 253    ctx->Driver.FreeTextureImageBuffer(ctx, image);
 254
 255    intel_image->mt = intel_miptree_create_layout(brw, target, image->TexFormat,
 256                                                  0, 0,
 257                                                  width, height, 1,
 258                                                  true, 0 /* num_samples */);
 259    if (intel_image->mt == NULL)
 260        return;
 261    intel_region_reference(&intel_image->mt->region, region);
 262    intel_image->mt->total_width = width;
 263    intel_image->mt->total_height = height;
 264    intel_image->mt->level[0].slice[0].x_offset = tile_x;
 265    intel_image->mt->level[0].slice[0].y_offset = tile_y;
 266
 267    intel_miptree_get_tile_offsets(intel_image->mt, 0, 0, &draw_x, &draw_y);
 268
 269    /* From "OES_EGL_image" error reporting. We report GL_INVALID_OPERATION
 270     * for EGL images from non-tile aligned sufaces in gen4 hw and earlier which has
 271     * trouble resolving back to destination image due to alignment issues.
 272     */
 273    if (!brw->has_surface_tile_offset &&
 274        (draw_x != 0 || draw_y != 0)) {
 275       _mesa_error(ctx, GL_INVALID_OPERATION, __func__);
 276       intel_miptree_release(&intel_image->mt);
 277       return;
 278    }
 279
 280    intel_texobj->needs_validate = true;
 281
 282    intel_image->mt->offset = offset;
 283    assert(region->pitch % region->cpp == 0);
 284    intel_image->base.RowStride = region->pitch / region->cpp;
 285
 286    /* Immediately validate the image to the object. */
 287    intel_miptree_reference(&intel_texobj->mt, intel_image->mt);
 288 }
 289
 290 void
 291 intelSetTexBuffer2(__DRIcontext *pDRICtx, GLint target,
 292                    GLint texture_format,
 293                    __DRIdrawable *dPriv)
 294 {
 295    struct gl_framebuffer *fb = dPriv->driverPrivate;
 296    struct brw_context *brw = pDRICtx->driverPrivate;
 297    struct gl_context *ctx = &brw->ctx;
 298    struct intel_texture_object *intelObj;
 299    struct intel_renderbuffer *rb;
 300    struct gl_texture_object *texObj;
 301    struct gl_texture_image *texImage;
 302    int level = 0, internalFormat = 0;
 303    gl_format texFormat = MESA_FORMAT_NONE;
 304
 305    texObj = _mesa_get_current_tex_object(ctx, target);
 306    intelObj = intel_texture_object(texObj);
 307
 308    if (!intelObj)
 309       return;
 310
 311    if (dPriv->lastStamp != dPriv->dri2.stamp ||
 312        !pDRICtx->driScreenPriv->dri2.useInvalidate)
 313       intel_update_renderbuffers(pDRICtx, dPriv);
 314
 315    rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
 316    /* If the region isn't set, then intel_update_renderbuffers was unable
 317     * to get the buffers for the drawable.
 318     */
 319    if (!rb || !rb->mt)
 320       return;
 321
 322    if (rb->mt->cpp == 4) {
 323       if (texture_format == __DRI_TEXTURE_FORMAT_RGB) {
 324          internalFormat = GL_RGB;
 325          texFormat = MESA_FORMAT_XRGB8888;
 326       }
 327       else {
 328          internalFormat = GL_RGBA;
 329          texFormat = MESA_FORMAT_ARGB8888;
 330       }
 331    } else if (rb->mt->cpp == 2) {
 332       internalFormat = GL_RGB;
 333       texFormat = MESA_FORMAT_RGB565;
 334    }
 335
 336    _mesa_lock_texture(&brw->ctx, texObj);
 337    texImage = _mesa_get_tex_image(ctx, texObj, target, level);
 338    intel_miptree_make_shareable(brw, rb->mt);
 339    intel_set_texture_image_region(ctx, texImage, rb->mt->region, target,
 340                                   internalFormat, texFormat, 0,
 341                                   rb->mt->region->width,
 342                                   rb->mt->region->height,
 343                                   0, 0);
 344    _mesa_unlock_texture(&brw->ctx, texObj);
 345 }
 346
 347 void
 348 intelSetTexBuffer(__DRIcontext *pDRICtx, GLint target, __DRIdrawable *dPriv)
 349 {
 350    /* The old interface didn't have the format argument, so copy our
 351     * implementation's behavior at the time.
 352     */
 353    intelSetTexBuffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv);
 354 }
 355
 356 static void
 357 intel_image_target_texture_2d(struct gl_context *ctx, GLenum target,
 358                               struct gl_texture_object *texObj,
 359                               struct gl_texture_image *texImage,
 360                               GLeglImageOES image_handle)
 361 {
 362    struct brw_context *brw = brw_context(ctx);
 363    __DRIscreen *screen;
 364    __DRIimage *image;
 365
 366    screen = brw->intelScreen->driScrnPriv;
 367    image = screen->dri2.image->lookupEGLImage(screen, image_handle,
 368                                               screen->loaderPrivate);
 369    if (image == NULL)
 370       return;
 371
 372    /**
 373     * Images originating via EGL_EXT_image_dma_buf_import can be used only
 374     * with GL_OES_EGL_image_external only.
 375     */
 376    if (image->dma_buf_imported && target != GL_TEXTURE_EXTERNAL_OES) {
 377       _mesa_error(ctx, GL_INVALID_OPERATION,
 378             "glEGLImageTargetTexture2DOES(dma buffers can be used with "
 379                "GL_OES_EGL_image_external only");
 380       return;
 381    }
 382
 383    if (target == GL_TEXTURE_EXTERNAL_OES && !image->dma_buf_imported) {
 384       _mesa_error(ctx, GL_INVALID_OPERATION,
 385             "glEGLImageTargetTexture2DOES(external target is enabled only "
 386                "for images created with EGL_EXT_image_dma_buf_import");
 387       return;
 388    }
 389
 390    /* Disallow depth/stencil textures: we don't have a way to pass the
 391     * separate stencil miptree of a GL_DEPTH_STENCIL texture through.
 392     */
 393    if (image->has_depthstencil) {
 394       _mesa_error(ctx, GL_INVALID_OPERATION, __func__);
 395       return;
 396    }
 397
 398    intel_set_texture_image_region(ctx, texImage, image->region,
 399                                   target, image->internal_format,
 400                                   image->format, image->offset,
 401                                   image->width,  image->height,
 402                                   image->tile_x, image->tile_y);
 403 }
 404
 405 void
 406 intelInitTextureImageFuncs(struct dd_function_table *functions)
 407 {
 408    functions->TexImage = intelTexImage;
 409    functions->EGLImageTargetTexture2D = intel_image_target_texture_2d;
 410 }