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 intel_context *intel = intel_context(ctx);
 117    struct brw_context *brw = brw_context(ctx);
 118    struct intel_buffer_object *pbo = intel_buffer_object(unpack->BufferObj);
 119    GLuint src_offset;
 120    drm_intel_bo *src_buffer;
 121
 122    if (!_mesa_is_bufferobj(unpack->BufferObj))
 123       return false;
 124
 125    DBG("trying pbo upload\n");
 126
 127    if (intel->ctx._ImageTransferState ||
 128        unpack->SkipPixels || unpack->SkipRows) {
 129       DBG("%s: image transfer\n", __FUNCTION__);
 130       return false;
 131    }
 132
 133    ctx->Driver.AllocTextureImageBuffer(ctx, image);
 134
 135    if (!intelImage->mt) {
 136       DBG("%s: no miptree\n", __FUNCTION__);
 137       return false;
 138    }
 139
 140    if (!_mesa_format_matches_format_and_type(intelImage->mt->format,
 141                                              format, type, false)) {
 142       DBG("%s: format mismatch (upload to %s with format 0x%x, type 0x%x)\n",
 143           __FUNCTION__, _mesa_get_format_name(intelImage->mt->format),
 144           format, type);
 145       return false;
 146    }
 147
 148    if (image->TexObject->Target == GL_TEXTURE_1D_ARRAY ||
 149        image->TexObject->Target == GL_TEXTURE_2D_ARRAY) {
 150       DBG("%s: no support for array textures\n", __FUNCTION__);
 151       return false;
 152    }
 153
 154    src_buffer = intel_bufferobj_source(brw, pbo, 64, &src_offset);
 155    /* note: potential 64-bit ptr to 32-bit int cast */
 156    src_offset += (GLuint) (unsigned long) pixels;
 157
 158    int src_stride =
 159       _mesa_image_row_stride(unpack, image->Width, format, type);
 160
 161    struct intel_mipmap_tree *pbo_mt =
 162       intel_miptree_create_for_bo(brw,
 163                                   src_buffer,
 164                                   intelImage->mt->format,
 165                                   src_offset,
 166                                   image->Width, image->Height,
 167                                   src_stride, I915_TILING_NONE);
 168    if (!pbo_mt)
 169       return false;
 170
 171    if (!intel_miptree_blit(brw,
 172                            pbo_mt, 0, 0,
 173                            0, 0, false,
 174                            intelImage->mt, image->Level, image->Face,
 175                            0, 0, false,
 176                            image->Width, image->Height, GL_COPY)) {
 177       DBG("%s: blit failed\n", __FUNCTION__);
 178       return false;
 179    }
 180
 181    intel_miptree_release(&pbo_mt);
 182
 183    DBG("%s: success\n", __FUNCTION__);
 184    return true;
 185 }
 186
 187 static void
 188 intelTexImage(struct gl_context * ctx,
 189               GLuint dims,
 190               struct gl_texture_image *texImage,
 191               GLenum format, GLenum type, const void *pixels,
 192               const struct gl_pixelstore_attrib *unpack)
 193 {
 194    bool ok;
 195
 196    DBG("%s target %s level %d %dx%dx%d\n", __FUNCTION__,
 197        _mesa_lookup_enum_by_nr(texImage->TexObject->Target),
 198        texImage->Level, texImage->Width, texImage->Height, texImage->Depth);
 199
 200    ok = intel_texsubimage_tiled_memcpy(ctx, dims, texImage,
 201                                        0, 0, 0, /*x,y,z offsets*/
 202                                        texImage->Width,
 203                                        texImage->Height,
 204                                        texImage->Depth,
 205                                        format, type, pixels, unpack,
 206                                        true /*for_glTexImage*/);
 207    if (ok)
 208       return;
 209
 210    /* Attempt to use the blitter for PBO image uploads.
 211     */
 212    if (dims <= 2 &&
 213        try_pbo_upload(ctx, texImage, unpack, format, type, pixels)) {
 214       return;
 215    }
 216
 217    DBG("%s: upload image %dx%dx%d pixels %p\n",
 218        __FUNCTION__, texImage->Width, texImage->Height, texImage->Depth,
 219        pixels);
 220
 221    _mesa_store_teximage(ctx, dims, texImage,
 222                         format, type, pixels, unpack);
 223 }
 224
 225
 226 /**
 227  * Binds a region to a texture image, like it was uploaded by glTexImage2D().
 228  *
 229  * Used for GLX_EXT_texture_from_pixmap and EGL image extensions,
 230  */
 231 static void
 232 intel_set_texture_image_region(struct gl_context *ctx,
 233                                struct gl_texture_image *image,
 234                                struct intel_region *region,
 235                                GLenum target,
 236                                GLenum internalFormat,
 237                                gl_format format,
 238                                uint32_t offset,
 239                                GLuint width,
 240                                GLuint height,
 241                                GLuint tile_x,
 242                                GLuint tile_y)
 243 {
 244    struct intel_context *intel = intel_context(ctx);
 245    struct brw_context *brw = brw_context(ctx);
 246    struct intel_texture_image *intel_image = intel_texture_image(image);
 247    struct gl_texture_object *texobj = image->TexObject;
 248    struct intel_texture_object *intel_texobj = intel_texture_object(texobj);
 249    uint32_t draw_x, draw_y;
 250
 251    _mesa_init_teximage_fields(&intel->ctx, image,
 252                               width, height, 1,
 253                               0, internalFormat, format);
 254
 255    ctx->Driver.FreeTextureImageBuffer(ctx, image);
 256
 257    intel_image->mt = intel_miptree_create_layout(brw, target, image->TexFormat,
 258                                                  0, 0,
 259                                                  width, height, 1,
 260                                                  true, 0 /* num_samples */);
 261    if (intel_image->mt == NULL)
 262        return;
 263    intel_region_reference(&intel_image->mt->region, region);
 264    intel_image->mt->total_width = width;
 265    intel_image->mt->total_height = height;
 266    intel_image->mt->level[0].slice[0].x_offset = tile_x;
 267    intel_image->mt->level[0].slice[0].y_offset = tile_y;
 268
 269    intel_miptree_get_tile_offsets(intel_image->mt, 0, 0, &draw_x, &draw_y);
 270
 271    /* From "OES_EGL_image" error reporting. We report GL_INVALID_OPERATION
 272     * for EGL images from non-tile aligned sufaces in gen4 hw and earlier which has
 273     * trouble resolving back to destination image due to alignment issues.
 274     */
 275    if (!brw->has_surface_tile_offset &&
 276        (draw_x != 0 || draw_y != 0)) {
 277       _mesa_error(ctx, GL_INVALID_OPERATION, __func__);
 278       intel_miptree_release(&intel_image->mt);
 279       return;
 280    }
 281
 282    intel_texobj->needs_validate = true;
 283
 284    intel_image->mt->offset = offset;
 285    assert(region->pitch % region->cpp == 0);
 286    intel_image->base.RowStride = region->pitch / region->cpp;
 287
 288    /* Immediately validate the image to the object. */
 289    intel_miptree_reference(&intel_texobj->mt, intel_image->mt);
 290 }
 291
 292 void
 293 intelSetTexBuffer2(__DRIcontext *pDRICtx, GLint target,
 294                    GLint texture_format,
 295                    __DRIdrawable *dPriv)
 296 {
 297    struct gl_framebuffer *fb = dPriv->driverPrivate;
 298    struct brw_context *brw = pDRICtx->driverPrivate;
 299    struct intel_context *intel = &brw->intel;
 300    struct gl_context *ctx = &intel->ctx;
 301    struct intel_texture_object *intelObj;
 302    struct intel_renderbuffer *rb;
 303    struct gl_texture_object *texObj;
 304    struct gl_texture_image *texImage;
 305    int level = 0, internalFormat = 0;
 306    gl_format texFormat = MESA_FORMAT_NONE;
 307
 308    texObj = _mesa_get_current_tex_object(ctx, target);
 309    intelObj = intel_texture_object(texObj);
 310
 311    if (!intelObj)
 312       return;
 313
 314    if (dPriv->lastStamp != dPriv->dri2.stamp)
 315       intel_update_renderbuffers(pDRICtx, dPriv);
 316
 317    rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
 318    /* If the region isn't set, then intel_update_renderbuffers was unable
 319     * to get the buffers for the drawable.
 320     */
 321    if (!rb || !rb->mt)
 322       return;
 323
 324    if (rb->mt->cpp == 4) {
 325       if (texture_format == __DRI_TEXTURE_FORMAT_RGB) {
 326          internalFormat = GL_RGB;
 327          texFormat = MESA_FORMAT_XRGB8888;
 328       }
 329       else {
 330          internalFormat = GL_RGBA;
 331          texFormat = MESA_FORMAT_ARGB8888;
 332       }
 333    } else if (rb->mt->cpp == 2) {
 334       internalFormat = GL_RGB;
 335       texFormat = MESA_FORMAT_RGB565;
 336    }
 337
 338    _mesa_lock_texture(&intel->ctx, texObj);
 339    texImage = _mesa_get_tex_image(ctx, texObj, target, level);
 340    intel_miptree_make_shareable(brw, rb->mt);
 341    intel_set_texture_image_region(ctx, texImage, rb->mt->region, target,
 342                                   internalFormat, texFormat, 0,
 343                                   rb->mt->region->width,
 344                                   rb->mt->region->height,
 345                                   0, 0);
 346    _mesa_unlock_texture(&intel->ctx, texObj);
 347 }
 348
 349 void
 350 intelSetTexBuffer(__DRIcontext *pDRICtx, GLint target, __DRIdrawable *dPriv)
 351 {
 352    /* The old interface didn't have the format argument, so copy our
 353     * implementation's behavior at the time.
 354     */
 355    intelSetTexBuffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv);
 356 }
 357
 358 static void
 359 intel_image_target_texture_2d(struct gl_context *ctx, GLenum target,
 360                               struct gl_texture_object *texObj,
 361                               struct gl_texture_image *texImage,
 362                               GLeglImageOES image_handle)
 363 {
 364    struct brw_context *brw = brw_context(ctx);
 365    __DRIscreen *screen;
 366    __DRIimage *image;
 367
 368    screen = brw->intelScreen->driScrnPriv;
 369    image = screen->dri2.image->lookupEGLImage(screen, image_handle,
 370                                               screen->loaderPrivate);
 371    if (image == NULL)
 372       return;
 373
 374    /* Disallow depth/stencil textures: we don't have a way to pass the
 375     * separate stencil miptree of a GL_DEPTH_STENCIL texture through.
 376     */
 377    if (image->has_depthstencil) {
 378       _mesa_error(ctx, GL_INVALID_OPERATION, __func__);
 379       return;
 380    }
 381
 382    intel_set_texture_image_region(ctx, texImage, image->region,
 383                                   target, image->internal_format,
 384                                   image->format, image->offset,
 385                                   image->width,  image->height,
 386                                   image->tile_x, image->tile_y);
 387 }
 388
 389 void
 390 intelInitTextureImageFuncs(struct dd_function_table *functions)
 391 {
 392    functions->TexImage = intelTexImage;
 393    functions->EGLImageTargetTexture2D = intel_image_target_texture_2d;
 394 }