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       return false;
 177    }
 178
 179    intel_miptree_release(&pbo_mt);
 180
 181    DBG("%s: success\n", __FUNCTION__);
 182    return true;
 183 }
 184
 185 static void
 186 intelTexImage(struct gl_context * ctx,
 187               GLuint dims,
 188               struct gl_texture_image *texImage,
 189               GLenum format, GLenum type, const void *pixels,
 190               const struct gl_pixelstore_attrib *unpack)
 191 {
 192    bool ok;
 193
 194    DBG("%s target %s level %d %dx%dx%d\n", __FUNCTION__,
 195        _mesa_lookup_enum_by_nr(texImage->TexObject->Target),
 196        texImage->Level, texImage->Width, texImage->Height, texImage->Depth);
 197
 198    ok = intel_texsubimage_tiled_memcpy(ctx, dims, texImage,
 199                                        0, 0, 0, /*x,y,z offsets*/
 200                                        texImage->Width,
 201                                        texImage->Height,
 202                                        texImage->Depth,
 203                                        format, type, pixels, unpack,
 204                                        true /*for_glTexImage*/);
 205    if (ok)
 206       return;
 207
 208    /* Attempt to use the blitter for PBO image uploads.
 209     */
 210    if (dims <= 2 &&
 211        try_pbo_upload(ctx, texImage, unpack, format, type, pixels)) {
 212       return;
 213    }
 214
 215    DBG("%s: upload image %dx%dx%d pixels %p\n",
 216        __FUNCTION__, texImage->Width, texImage->Height, texImage->Depth,
 217        pixels);
 218
 219    _mesa_store_teximage(ctx, dims, texImage,
 220                         format, type, pixels, unpack);
 221 }
 222
 223
 224 /**
 225  * Binds a region to a texture image, like it was uploaded by glTexImage2D().
 226  *
 227  * Used for GLX_EXT_texture_from_pixmap and EGL image extensions,
 228  */
 229 static void
 230 intel_set_texture_image_region(struct gl_context *ctx,
 231                                struct gl_texture_image *image,
 232                                struct intel_region *region,
 233                                GLenum target,
 234                                GLenum internalFormat,
 235                                gl_format format,
 236                                uint32_t offset,
 237                                GLuint width,
 238                                GLuint height,
 239                                GLuint tile_x,
 240                                GLuint tile_y)
 241 {
 242    struct brw_context *brw = brw_context(ctx);
 243    struct intel_texture_image *intel_image = intel_texture_image(image);
 244    struct gl_texture_object *texobj = image->TexObject;
 245    struct intel_texture_object *intel_texobj = intel_texture_object(texobj);
 246    uint32_t draw_x, draw_y;
 247
 248    _mesa_init_teximage_fields(&brw->ctx, image,
 249                               width, height, 1,
 250                               0, internalFormat, format);
 251
 252    ctx->Driver.FreeTextureImageBuffer(ctx, image);
 253
 254    intel_image->mt = intel_miptree_create_layout(brw, target, image->TexFormat,
 255                                                  0, 0,
 256                                                  width, height, 1,
 257                                                  true, 0 /* num_samples */);
 258    if (intel_image->mt == NULL)
 259        return;
 260    intel_region_reference(&intel_image->mt->region, region);
 261    intel_image->mt->total_width = width;
 262    intel_image->mt->total_height = height;
 263    intel_image->mt->level[0].slice[0].x_offset = tile_x;
 264    intel_image->mt->level[0].slice[0].y_offset = tile_y;
 265
 266    intel_miptree_get_tile_offsets(intel_image->mt, 0, 0, &draw_x, &draw_y);
 267
 268    /* From "OES_EGL_image" error reporting. We report GL_INVALID_OPERATION
 269     * for EGL images from non-tile aligned sufaces in gen4 hw and earlier which has
 270     * trouble resolving back to destination image due to alignment issues.
 271     */
 272    if (!brw->has_surface_tile_offset &&
 273        (draw_x != 0 || draw_y != 0)) {
 274       _mesa_error(ctx, GL_INVALID_OPERATION, __func__);
 275       intel_miptree_release(&intel_image->mt);
 276       return;
 277    }
 278
 279    intel_texobj->needs_validate = true;
 280
 281    intel_image->mt->offset = offset;
 282    assert(region->pitch % region->cpp == 0);
 283    intel_image->base.RowStride = region->pitch / region->cpp;
 284
 285    /* Immediately validate the image to the object. */
 286    intel_miptree_reference(&intel_texobj->mt, intel_image->mt);
 287 }
 288
 289 void
 290 intelSetTexBuffer2(__DRIcontext *pDRICtx, GLint target,
 291                    GLint texture_format,
 292                    __DRIdrawable *dPriv)
 293 {
 294    struct gl_framebuffer *fb = dPriv->driverPrivate;
 295    struct brw_context *brw = pDRICtx->driverPrivate;
 296    struct gl_context *ctx = &brw->ctx;
 297    struct intel_texture_object *intelObj;
 298    struct intel_renderbuffer *rb;
 299    struct gl_texture_object *texObj;
 300    struct gl_texture_image *texImage;
 301    int level = 0, internalFormat = 0;
 302    gl_format texFormat = MESA_FORMAT_NONE;
 303
 304    texObj = _mesa_get_current_tex_object(ctx, target);
 305    intelObj = intel_texture_object(texObj);
 306
 307    if (!intelObj)
 308       return;
 309
 310    if (dPriv->lastStamp != dPriv->dri2.stamp ||
 311        !pDRICtx->driScreenPriv->dri2.useInvalidate)
 312       intel_update_renderbuffers(pDRICtx, dPriv);
 313
 314    rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
 315    /* If the region isn't set, then intel_update_renderbuffers was unable
 316     * to get the buffers for the drawable.
 317     */
 318    if (!rb || !rb->mt)
 319       return;
 320
 321    if (rb->mt->cpp == 4) {
 322       if (texture_format == __DRI_TEXTURE_FORMAT_RGB) {
 323          internalFormat = GL_RGB;
 324          texFormat = MESA_FORMAT_XRGB8888;
 325       }
 326       else {
 327          internalFormat = GL_RGBA;
 328          texFormat = MESA_FORMAT_ARGB8888;
 329       }
 330    } else if (rb->mt->cpp == 2) {
 331       internalFormat = GL_RGB;
 332       texFormat = MESA_FORMAT_RGB565;
 333    }
 334
 335    _mesa_lock_texture(&brw->ctx, texObj);
 336    texImage = _mesa_get_tex_image(ctx, texObj, target, level);
 337    intel_miptree_make_shareable(brw, rb->mt);
 338    intel_set_texture_image_region(ctx, texImage, rb->mt->region, target,
 339                                   internalFormat, texFormat, 0,
 340                                   rb->mt->region->width,
 341                                   rb->mt->region->height,
 342                                   0, 0);
 343    _mesa_unlock_texture(&brw->ctx, texObj);
 344 }
 345
 346 void
 347 intelSetTexBuffer(__DRIcontext *pDRICtx, GLint target, __DRIdrawable *dPriv)
 348 {
 349    /* The old interface didn't have the format argument, so copy our
 350     * implementation's behavior at the time.
 351     */
 352    intelSetTexBuffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv);
 353 }
 354
 355 static void
 356 intel_image_target_texture_2d(struct gl_context *ctx, GLenum target,
 357                               struct gl_texture_object *texObj,
 358                               struct gl_texture_image *texImage,
 359                               GLeglImageOES image_handle)
 360 {
 361    struct brw_context *brw = brw_context(ctx);
 362    __DRIscreen *screen;
 363    __DRIimage *image;
 364
 365    screen = brw->intelScreen->driScrnPriv;
 366    image = screen->dri2.image->lookupEGLImage(screen, image_handle,
 367                                               screen->loaderPrivate);
 368    if (image == NULL)
 369       return;
 370
 371    /**
 372     * Images originating via EGL_EXT_image_dma_buf_import can be used only
 373     * with GL_OES_EGL_image_external only.
 374     */
 375    if (image->dma_buf_imported && target != GL_TEXTURE_EXTERNAL_OES) {
 376       _mesa_error(ctx, GL_INVALID_OPERATION,
 377             "glEGLImageTargetTexture2DOES(dma buffers can be used with "
 378                "GL_OES_EGL_image_external only");
 379       return;
 380    }
 381
 382    /* Disallow depth/stencil textures: we don't have a way to pass the
 383     * separate stencil miptree of a GL_DEPTH_STENCIL texture through.
 384     */
 385    if (image->has_depthstencil) {
 386       _mesa_error(ctx, GL_INVALID_OPERATION, __func__);
 387       return;
 388    }
 389
 390    intel_set_texture_image_region(ctx, texImage, image->region,
 391                                   target, image->internal_format,
 392                                   image->format, image->offset,
 393                                   image->width,  image->height,
 394                                   image->tile_x, image->tile_y);
 395 }
 396
 397 void
 398 intelInitTextureImageFuncs(struct dd_function_table *functions)
 399 {
 400    functions->TexImage = intelTexImage;
 401    functions->EGLImageTargetTexture2D = intel_image_target_texture_2d;
 402 }