static void r300_setup_miptree(struct r300_screen *screen,
                               struct r300_texture_desc *desc,
                               boolean align_for_cbzb)
{
    struct pipe_resource *base = &desc->b.b;
    unsigned stride, size, layer_size, nblocksy, i;
    boolean rv350_mode = screen->caps.family >= CHIP_FAMILY_R350;
    boolean aligned_for_cbzb;

    desc->size_in_bytes = 0;

    SCREEN_DBG(screen, DBG_TEXALLOC,
        "r300: Making miptree for texture, format %s\n",
        util_format_short_name(base->format));

    for (i = 0; i <= base->last_level; i++) {
        /* Let's see if this miplevel can be macrotiled. */
        desc->macrotile[i] =
            (desc->macrotile[0] == R300_BUFFER_TILED &&
             r300_texture_macro_switch(desc, i, rv350_mode, DIM_WIDTH) &&
             r300_texture_macro_switch(desc, i, rv350_mode, DIM_HEIGHT)) ?
             R300_BUFFER_TILED : R300_BUFFER_LINEAR;

        stride = r300_texture_get_stride(screen, desc, i);

        /* Compute the number of blocks in Y, see if the CBZB clear can be
         * used on the texture. */
        aligned_for_cbzb = FALSE;
        if (align_for_cbzb && desc->cbzb_allowed[i])
            nblocksy = r300_texture_get_nblocksy(desc, i, &aligned_for_cbzb);
        else
            nblocksy = r300_texture_get_nblocksy(desc, i, NULL);

        layer_size = stride * nblocksy;

        if (base->nr_samples) {
            layer_size *= base->nr_samples;
        }

        if (base->target == PIPE_TEXTURE_CUBE)
            size = layer_size * 6;
        else
            size = layer_size * u_minify(base->depth0, i);

        desc->offset_in_bytes[i] = desc->size_in_bytes;
        desc->size_in_bytes = desc->offset_in_bytes[i] + size;
        desc->layer_size_in_bytes[i] = layer_size;
        desc->stride_in_bytes[i] = stride;
        desc->stride_in_pixels[i] = stride_to_width(desc->b.b.format, stride);
        desc->cbzb_allowed[i] = desc->cbzb_allowed[i] && aligned_for_cbzb;

        SCREEN_DBG(screen, DBG_TEXALLOC, "r300: Texture miptree: Level %d "
                "(%dx%dx%d px, pitch %d bytes) %d bytes total, macrotiled %s\n",
                i, u_minify(base->width0, i), u_minify(base->height0, i),
                u_minify(base->depth0, i), stride, desc->size_in_bytes,
                desc->macrotile[i] ? "TRUE" : "FALSE");
    }
}
Esempio n. 2
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static void r300_setup_miptree(struct r300_screen* screen,
                               struct r300_texture* tex)
{
    struct pipe_texture* base = &tex->tex;
    unsigned stride, size, layer_size, nblocksy, i;
    boolean rv350_mode = screen->caps->family >= CHIP_FAMILY_RV350;

    SCREEN_DBG(screen, DBG_TEX, "r300: Making miptree for texture, format %s\n",
               util_format_name(base->format));

    for (i = 0; i <= base->last_level; i++) {
        /* Let's see if this miplevel can be macrotiled. */
        tex->mip_macrotile[i] = (tex->macrotile == R300_BUFFER_TILED &&
                                 r300_texture_macro_switch(tex, i, rv350_mode)) ?
                                R300_BUFFER_TILED : R300_BUFFER_LINEAR;

        stride = r300_texture_get_stride(screen, tex, i);
        nblocksy = r300_texture_get_nblocksy(tex, i);
        layer_size = stride * nblocksy;

        if (base->target == PIPE_TEXTURE_CUBE)
            size = layer_size * 6;
        else
            size = layer_size * u_minify(base->depth0, i);

        tex->offset[i] = tex->size;
        tex->size = tex->offset[i] + size;
        tex->layer_size[i] = layer_size;
        tex->pitch[i] = stride / util_format_get_blocksize(base->format);

        SCREEN_DBG(screen, DBG_TEX, "r300: Texture miptree: Level %d "
                   "(%dx%dx%d px, pitch %d bytes) %d bytes total, macrotiled %s\n",
                   i, u_minify(base->width0, i), u_minify(base->height0, i),
                   u_minify(base->depth0, i), stride, tex->size,
                   tex->mip_macrotile[i] ? "TRUE" : "FALSE");
    }
}