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