+static unsigned r600_get_pixel_alignment(struct pipe_screen *screen,
+ enum pipe_format format,
+ unsigned array_mode)
+{
+ struct r600_screen* rscreen = (struct r600_screen *)screen;
+ unsigned pixsize = util_format_get_blocksize(format);
+ int p_align;
+
+ switch(array_mode) {
+ case V_038000_ARRAY_1D_TILED_THIN1:
+ p_align = MAX2(8,
+ ((rscreen->tiling_info->group_bytes / 8 / pixsize)));
+ break;
+ case V_038000_ARRAY_2D_TILED_THIN1:
+ p_align = MAX2(rscreen->tiling_info->num_banks,
+ (((rscreen->tiling_info->group_bytes / 8 / pixsize)) *
+ rscreen->tiling_info->num_banks)) * 8;
+ break;
+ case V_038000_ARRAY_LINEAR_GENERAL:
+ default:
+ p_align = rscreen->tiling_info->group_bytes / pixsize;
+ break;
+ }
+ return p_align;
+}
+
+static unsigned r600_get_height_alignment(struct pipe_screen *screen,
+ unsigned array_mode)
+{
+ struct r600_screen* rscreen = (struct r600_screen *)screen;
+ int h_align;
+
+ switch (array_mode) {
+ case V_038000_ARRAY_2D_TILED_THIN1:
+ h_align = rscreen->tiling_info->num_channels * 8;
+ break;
+ case V_038000_ARRAY_1D_TILED_THIN1:
+ h_align = 8;
+ break;
+ default:
+ h_align = 1;
+ break;
+ }
+ return h_align;
+}
+
+static unsigned r600_get_base_alignment(struct pipe_screen *screen,
+ enum pipe_format format,
+ unsigned array_mode)
+{
+ struct r600_screen* rscreen = (struct r600_screen *)screen;
+ unsigned pixsize = util_format_get_blocksize(format);
+ int p_align = r600_get_pixel_alignment(screen, format, array_mode);
+ int h_align = r600_get_height_alignment(screen, array_mode);
+ int b_align;
+
+ switch (array_mode) {
+ case V_038000_ARRAY_2D_TILED_THIN1:
+ b_align = MAX2(rscreen->tiling_info->num_banks * rscreen->tiling_info->num_channels * 8 * 8 * pixsize,
+ p_align * pixsize * h_align);
+ break;
+ case V_038000_ARRAY_1D_TILED_THIN1:
+ default:
+ b_align = rscreen->tiling_info->group_bytes;
+ break;
+ }
+ return b_align;
+}
+
+static unsigned mip_minify(unsigned size, unsigned level)
+{
+ unsigned val;
+ val = u_minify(size, level);
+ if (level > 0)
+ val = util_next_power_of_two(val);
+ return val;
+}
+
+static unsigned r600_texture_get_stride(struct pipe_screen *screen,
+ struct r600_resource_texture *rtex,
+ unsigned level)
+{
+ struct pipe_resource *ptex = &rtex->resource.base.b;
+ unsigned width, stride, tile_width;
+
+ if (rtex->pitch_override)
+ return rtex->pitch_override;
+
+ width = mip_minify(ptex->width0, level);
+ if (util_format_is_plain(ptex->format)) {
+ tile_width = r600_get_pixel_alignment(screen, ptex->format,
+ rtex->array_mode[level]);
+ width = align(width, tile_width);
+ }
+ stride = util_format_get_stride(ptex->format, width);
+
+ return stride;
+}
+
+static unsigned r600_texture_get_nblocksy(struct pipe_screen *screen,
+ struct r600_resource_texture *rtex,
+ unsigned level)