src/mesa/drivers/dri/i915/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_context.h"
  19 #include "intel_mipmap_tree.h"
  20 #include "intel_buffer_objects.h"
  21 #include "intel_batchbuffer.h"
  22 #include "intel_tex.h"
  23 #include "intel_blit.h"
  24 #include "intel_fbo.h"
  25
  26 #define FILE_DEBUG_FLAG DEBUG_TEXTURE
  27
  28 /* Work back from the specified level of the image to the baselevel and create a
  29  * miptree of that size.
  30  */
  31 struct intel_mipmap_tree *
  32 intel_miptree_create_for_teximage(struct intel_context *intel,
  33                                   struct intel_texture_object *intelObj,
  34                                   struct intel_texture_image *intelImage,
  35                                   bool expect_accelerated_upload)
  36 {
  37    GLuint firstLevel;
  38    GLuint lastLevel;
  39    int width, height, depth;
  40    GLuint i;
  41
  42    intel_miptree_get_dimensions_for_image(&intelImage->base.Base,
  43                                           &width, &height, &depth);
  44
  45    DBG("%s\n", __FUNCTION__);
  46
  47    if (intelImage->base.Base.Level > intelObj->base.BaseLevel &&
  48        (width == 1 ||
  49         (intelObj->base.Target != GL_TEXTURE_1D && height == 1) ||
  50         (intelObj->base.Target == GL_TEXTURE_3D && depth == 1))) {
  51       /* For this combination, we're at some lower mipmap level and
  52        * some important dimension is 1.  We can't extrapolate up to a
  53        * likely base level width/height/depth for a full mipmap stack
  54        * from this info, so just allocate this one level.
  55        */
  56       firstLevel = intelImage->base.Base.Level;
  57       lastLevel = intelImage->base.Base.Level;
  58    } else {
  59       /* If this image disrespects BaseLevel, allocate from level zero.
  60        * Usually BaseLevel == 0, so it's unlikely to happen.
  61        */
  62       if (intelImage->base.Base.Level < intelObj->base.BaseLevel)
  63          firstLevel = 0;
  64       else
  65          firstLevel = intelObj->base.BaseLevel;
  66
  67       /* Figure out image dimensions at start level. */
  68       for (i = intelImage->base.Base.Level; i > firstLevel; i--) {
  69          width <<= 1;
  70          if (height != 1)
  71             height <<= 1;
  72          if (depth != 1)
  73             depth <<= 1;
  74       }
  75
  76       /* Guess a reasonable value for lastLevel.  This is probably going
  77        * to be wrong fairly often and might mean that we have to look at
  78        * resizable buffers, or require that buffers implement lazy
  79        * pagetable arrangements.
  80        */
  81       if ((intelObj->base.Sampler.MinFilter == GL_NEAREST ||
  82            intelObj->base.Sampler.MinFilter == GL_LINEAR) &&
  83           intelImage->base.Base.Level == firstLevel &&
  84           (intel->gen < 4 || firstLevel == 0)) {
  85          lastLevel = firstLevel;
  86       } else {
  87          lastLevel = (firstLevel +
  88                       _mesa_get_tex_max_num_levels(intelObj->base.Target,
  89                                                    width, height, depth) - 1);
  90       }
  91    }
  92
  93    return intel_miptree_create(intel,
  94                                intelObj->base.Target,
  95                                intelImage->base.Base.TexFormat,
  96                                firstLevel,
  97                                lastLevel,
  98                                width,
  99                                height,
 100                                depth,
 101                                expect_accelerated_upload,
 102                                INTEL_MIPTREE_TILING_ANY);
 103 }
 104
 105 /* XXX: Do this for TexSubImage also:
 106  */
 107 static bool
 108 try_pbo_upload(struct gl_context *ctx,
 109                struct gl_texture_image *image,
 110                const struct gl_pixelstore_attrib *unpack,
 111                GLenum format, GLenum type, const void *pixels)
 112 {
 113    struct intel_texture_image *intelImage = intel_texture_image(image);
 114    struct intel_context *intel = intel_context(ctx);
 115    struct intel_buffer_object *pbo = intel_buffer_object(unpack->BufferObj);
 116    GLuint src_offset;
 117    drm_intel_bo *src_buffer;
 118
 119    if (!_mesa_is_bufferobj(unpack->BufferObj))
 120       return false;
 121
 122    DBG("trying pbo upload\n");
 123
 124    if (intel->ctx._ImageTransferState ||
 125        unpack->SkipPixels || unpack->SkipRows) {
 126       DBG("%s: image transfer\n", __FUNCTION__);
 127       return false;
 128    }
 129
 130    ctx->Driver.AllocTextureImageBuffer(ctx, image);
 131
 132    if (!intelImage->mt) {
 133       DBG("%s: no miptree\n", __FUNCTION__);
 134       return false;
 135    }
 136
 137    if (!_mesa_format_matches_format_and_type(intelImage->mt->format,
 138                                              format, type, false)) {
 139       DBG("%s: format mismatch (upload to %s with format 0x%x, type 0x%x)\n",
 140           __FUNCTION__, _mesa_get_format_name(intelImage->mt->format),
 141           format, type);
 142       return false;
 143    }
 144
 145    if (image->TexObject->Target == GL_TEXTURE_1D_ARRAY ||
 146        image->TexObject->Target == GL_TEXTURE_2D_ARRAY) {
 147       DBG("%s: no support for array textures\n", __FUNCTION__);
 148       return false;
 149    }
 150
 151    src_buffer = intel_bufferobj_source(intel, pbo, 64, &src_offset);
 152    /* note: potential 64-bit ptr to 32-bit int cast */
 153    src_offset += (GLuint) (unsigned long) pixels;
 154
 155    int src_stride =
 156       _mesa_image_row_stride(unpack, image->Width, format, type);
 157
 158    struct intel_mipmap_tree *pbo_mt =
 159       intel_miptree_create_for_bo(intel,
 160                                   src_buffer,
 161                                   intelImage->mt->format,
 162                                   src_offset,
 163                                   image->Width, image->Height,
 164                                   src_stride, I915_TILING_NONE);
 165    if (!pbo_mt)
 166       return false;
 167
 168    if (!intel_miptree_blit(intel,
 169                            pbo_mt, 0, 0,
 170                            0, 0, false,
 171                            intelImage->mt, image->Level, image->Face,
 172                            0, 0, false,
 173                            image->Width, image->Height, GL_COPY)) {
 174       DBG("%s: blit failed\n", __FUNCTION__);
 175       return false;
 176    }
 177
 178    intel_miptree_release(&pbo_mt);
 179
 180    DBG("%s: success\n", __FUNCTION__);
 181    return true;
 182 }
 183
 184 static void
 185 intelTexImage(struct gl_context * ctx,
 186               GLuint dims,
 187               struct gl_texture_image *texImage,
 188               GLenum format, GLenum type, const void *pixels,
 189               const struct gl_pixelstore_attrib *unpack)
 190 {
 191    bool ok;
 192
 193    DBG("%s target %s level %d %dx%dx%d\n", __FUNCTION__,
 194        _mesa_lookup_enum_by_nr(texImage->TexObject->Target),
 195        texImage->Level, texImage->Width, texImage->Height, texImage->Depth);
 196
 197    ok = intel_texsubimage_tiled_memcpy(ctx, dims, texImage,
 198                                        0, 0, 0, /*x,y,z offsets*/
 199                                        texImage->Width,
 200                                        texImage->Height,
 201                                        texImage->Depth,
 202                                        format, type, pixels, unpack,
 203                                        true /*for_glTexImage*/);
 204    if (ok)
 205       return;
 206
 207    /* Attempt to use the blitter for PBO image uploads.
 208     */
 209    if (dims <= 2 &&
 210        try_pbo_upload(ctx, texImage, unpack, format, type, pixels)) {
 211       return;
 212    }
 213
 214    DBG("%s: upload image %dx%dx%d pixels %p\n",
 215        __FUNCTION__, texImage->Width, texImage->Height, texImage->Depth,
 216        pixels);
 217
 218    _mesa_store_teximage(ctx, dims, texImage,
 219                         format, type, pixels, unpack);
 220 }
 221
 222
 223 /**
 224  * Binds a region to a texture image, like it was uploaded by glTexImage2D().
 225  *
 226  * Used for GLX_EXT_texture_from_pixmap and EGL image extensions,
 227  */
 228 static void
 229 intel_set_texture_image_region(struct gl_context *ctx,
 230                                struct gl_texture_image *image,
 231                                struct intel_region *region,
 232                                GLenum target,
 233                                GLenum internalFormat,
 234                                gl_format format,
 235                                uint32_t offset,
 236                                GLuint width,
 237                                GLuint height,
 238                                GLuint tile_x,
 239                                GLuint tile_y)
 240 {
 241    struct intel_context *intel = intel_context(ctx);
 242    struct intel_texture_image *intel_image = intel_texture_image(image);
 243    struct gl_texture_object *texobj = image->TexObject;
 244    struct intel_texture_object *intel_texobj = intel_texture_object(texobj);
 245    bool has_surface_tile_offset = false;
 246    uint32_t draw_x, draw_y;
 247
 248    _mesa_init_teximage_fields(&intel->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(intel, target, image->TexFormat,
 255                                                  0, 0,
 256                                                  width, height, 1,
 257                                                  true);
 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 (!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 intel_context *intel = pDRICtx->driverPrivate;
 296    struct gl_context *ctx = &intel->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(&intel->ctx, texObj);
 336    texImage = _mesa_get_tex_image(ctx, texObj, target, level);
 337    intel_set_texture_image_region(ctx, texImage, rb->mt->region, target,
 338                                   internalFormat, texFormat, 0,
 339                                   rb->mt->region->width,
 340                                   rb->mt->region->height,
 341                                   0, 0);
 342    _mesa_unlock_texture(&intel->ctx, texObj);
 343 }
 344
 345 void
 346 intelSetTexBuffer(__DRIcontext *pDRICtx, GLint target, __DRIdrawable *dPriv)
 347 {
 348    /* The old interface didn't have the format argument, so copy our
 349     * implementation's behavior at the time.
 350     */
 351    intelSetTexBuffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv);
 352 }
 353
 354 static void
 355 intel_image_target_texture_2d(struct gl_context *ctx, GLenum target,
 356                               struct gl_texture_object *texObj,
 357                               struct gl_texture_image *texImage,
 358                               GLeglImageOES image_handle)
 359 {
 360    struct intel_context *intel = intel_context(ctx);
 361    __DRIscreen *screen;
 362    __DRIimage *image;
 363
 364    screen = intel->intelScreen->driScrnPriv;
 365    image = screen->dri2.image->lookupEGLImage(screen, image_handle,
 366                                               screen->loaderPrivate);
 367    if (image == NULL)
 368       return;
 369
 370    /* Disallow depth/stencil textures: we don't have a way to pass the
 371     * separate stencil miptree of a GL_DEPTH_STENCIL texture through.
 372     */
 373    if (image->has_depthstencil) {
 374       _mesa_error(ctx, GL_INVALID_OPERATION, __func__);
 375       return;
 376    }
 377
 378    intel_set_texture_image_region(ctx, texImage, image->region,
 379                                   target, image->internal_format,
 380                                   image->format, image->offset,
 381                                   image->width,  image->height,
 382                                   image->tile_x, image->tile_y);
 383 }
 384
 385 void
 386 intelInitTextureImageFuncs(struct dd_function_table *functions)
 387 {
 388    functions->TexImage = intelTexImage;
 389    functions->EGLImageTargetTexture2D = intel_image_target_texture_2d;
 390 }