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", __func__);
  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          lastLevel = firstLevel;
  85       } else {
  86          lastLevel = (firstLevel +
  87                       _mesa_get_tex_max_num_levels(intelObj->base.Target,
  88                                                    width, height, depth) - 1);
  89       }
  90    }
  91
  92    return intel_miptree_create(intel,
  93                                intelObj->base.Target,
  94                                intelImage->base.Base.TexFormat,
  95                                firstLevel,
  96                                lastLevel,
  97                                width,
  98                                height,
  99                                depth,
 100                                expect_accelerated_upload,
 101                                INTEL_MIPTREE_TILING_ANY);
 102 }
 103
 104 /* XXX: Do this for TexSubImage also:
 105  */
 106 static bool
 107 try_pbo_upload(struct gl_context *ctx,
 108                struct gl_texture_image *image,
 109                const struct gl_pixelstore_attrib *unpack,
 110                GLenum format, GLenum type, const void *pixels)
 111 {
 112    struct intel_texture_image *intelImage = intel_texture_image(image);
 113    struct intel_context *intel = intel_context(ctx);
 114    struct intel_buffer_object *pbo = intel_buffer_object(unpack->BufferObj);
 115    GLuint src_offset;
 116    drm_intel_bo *src_buffer;
 117
 118    if (!_mesa_is_bufferobj(unpack->BufferObj))
 119       return false;
 120
 121    DBG("trying pbo upload\n");
 122
 123    if (intel->ctx._ImageTransferState ||
 124        unpack->SkipPixels || unpack->SkipRows) {
 125       DBG("%s: image transfer\n", __func__);
 126       return false;
 127    }
 128
 129    ctx->Driver.AllocTextureImageBuffer(ctx, image);
 130
 131    if (!intelImage->mt) {
 132       DBG("%s: no miptree\n", __func__);
 133       return false;
 134    }
 135
 136    if (!_mesa_format_matches_format_and_type(intelImage->mt->format,
 137                                              format, type, false)) {
 138       DBG("%s: format mismatch (upload to %s with format 0x%x, type 0x%x)\n",
 139           __func__, _mesa_get_format_name(intelImage->mt->format),
 140           format, type);
 141       return false;
 142    }
 143
 144    if (image->TexObject->Target == GL_TEXTURE_1D_ARRAY ||
 145        image->TexObject->Target == GL_TEXTURE_2D_ARRAY) {
 146       DBG("%s: no support for array textures\n", __func__);
 147       return false;
 148    }
 149
 150    src_buffer = intel_bufferobj_source(intel, pbo, 64, &src_offset);
 151    /* note: potential 64-bit ptr to 32-bit int cast */
 152    src_offset += (GLuint) (unsigned long) pixels;
 153
 154    int src_stride =
 155       _mesa_image_row_stride(unpack, image->Width, format, type);
 156
 157    struct intel_mipmap_tree *pbo_mt =
 158       intel_miptree_create_for_bo(intel,
 159                                   src_buffer,
 160                                   intelImage->mt->format,
 161                                   src_offset,
 162                                   image->Width, image->Height,
 163                                   src_stride, I915_TILING_NONE);
 164    if (!pbo_mt)
 165       return false;
 166
 167    if (!intel_miptree_blit(intel,
 168                            pbo_mt, 0, 0,
 169                            0, 0, false,
 170                            intelImage->mt, image->Level, image->Face,
 171                            0, 0, false,
 172                            image->Width, image->Height, GL_COPY)) {
 173       DBG("%s: blit failed\n", __func__);
 174       intel_miptree_release(&pbo_mt);
 175       return false;
 176    }
 177
 178    intel_miptree_release(&pbo_mt);
 179
 180    DBG("%s: success\n", __func__);
 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    DBG("%s target %s level %d %dx%dx%d\n", __func__,
 192        _mesa_lookup_enum_by_nr(texImage->TexObject->Target),
 193        texImage->Level, texImage->Width, texImage->Height, texImage->Depth);
 194
 195    /* Attempt to use the blitter for PBO image uploads.
 196     */
 197    if (dims <= 2 &&
 198        try_pbo_upload(ctx, texImage, unpack, format, type, pixels)) {
 199       return;
 200    }
 201
 202    DBG("%s: upload image %dx%dx%d pixels %p\n",
 203        __func__, texImage->Width, texImage->Height, texImage->Depth,
 204        pixels);
 205
 206    _mesa_store_teximage(ctx, dims, texImage,
 207                         format, type, pixels, unpack);
 208 }
 209
 210
 211 /**
 212  * Binds a region to a texture image, like it was uploaded by glTexImage2D().
 213  *
 214  * Used for GLX_EXT_texture_from_pixmap and EGL image extensions,
 215  */
 216 static void
 217 intel_set_texture_image_region(struct gl_context *ctx,
 218                                struct gl_texture_image *image,
 219                                struct intel_region *region,
 220                                GLenum target,
 221                                GLenum internalFormat,
 222                                mesa_format format,
 223                                uint32_t offset,
 224                                GLuint width,
 225                                GLuint height,
 226                                GLuint tile_x,
 227                                GLuint tile_y)
 228 {
 229    struct intel_context *intel = intel_context(ctx);
 230    struct intel_texture_image *intel_image = intel_texture_image(image);
 231    struct gl_texture_object *texobj = image->TexObject;
 232    struct intel_texture_object *intel_texobj = intel_texture_object(texobj);
 233    bool has_surface_tile_offset = false;
 234    uint32_t draw_x, draw_y;
 235
 236    _mesa_init_teximage_fields(&intel->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(intel, target, image->TexFormat,
 243                                                  0, 0,
 244                                                  width, height, 1,
 245                                                  true);
 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 (!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 intel_context *intel = pDRICtx->driverPrivate;
 284    struct gl_context *ctx = &intel->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    mesa_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_B8G8R8X8_UNORM;
 313       }
 314       else {
 315          internalFormat = GL_RGBA;
 316          texFormat = MESA_FORMAT_B8G8R8A8_UNORM;
 317       }
 318    } else if (rb->mt->cpp == 2) {
 319       internalFormat = GL_RGB;
 320       texFormat = MESA_FORMAT_B5G6R5_UNORM;
 321    }
 322
 323    _mesa_lock_texture(&intel->ctx, texObj);
 324    texImage = _mesa_get_tex_image(ctx, texObj, target, level);
 325    intel_set_texture_image_region(ctx, texImage, rb->mt->region, target,
 326                                   internalFormat, texFormat, 0,
 327                                   rb->mt->region->width,
 328                                   rb->mt->region->height,
 329                                   0, 0);
 330    _mesa_unlock_texture(&intel->ctx, texObj);
 331 }
 332
 333 void
 334 intelSetTexBuffer(__DRIcontext *pDRICtx, GLint target, __DRIdrawable *dPriv)
 335 {
 336    /* The old interface didn't have the format argument, so copy our
 337     * implementation's behavior at the time.
 338     */
 339    intelSetTexBuffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv);
 340 }
 341
 342 static void
 343 intel_image_target_texture_2d(struct gl_context *ctx, GLenum target,
 344                               struct gl_texture_object *texObj,
 345                               struct gl_texture_image *texImage,
 346                               GLeglImageOES image_handle)
 347 {
 348    struct intel_context *intel = intel_context(ctx);
 349    __DRIscreen *screen;
 350    __DRIimage *image;
 351
 352    screen = intel->intelScreen->driScrnPriv;
 353    image = screen->dri2.image->lookupEGLImage(screen, image_handle,
 354                                               screen->loaderPrivate);
 355    if (image == NULL)
 356       return;
 357
 358    intel_set_texture_image_region(ctx, texImage, image->region,
 359                                   target, image->internal_format,
 360                                   image->format, image->offset,
 361                                   image->width,  image->height,
 362                                   image->tile_x, image->tile_y);
 363 }
 364
 365 void
 366 intelInitTextureImageFuncs(struct dd_function_table *functions)
 367 {
 368    functions->TexImage = intelTexImage;
 369    functions->EGLImageTargetTexture2D = intel_image_target_texture_2d;
 370 }