- uint32_t tile_base, tile_x, tile_y;
- uint32_t pitch = key.pitch * key.cpp;
-
- if (key.tiling == I915_TILING_X) {
- tile_x = key.draw_x % (512 / key.cpp);
- tile_y = key.draw_y % 8;
- tile_base = ((key.draw_y / 8) * (8 * pitch));
- tile_base += (key.draw_x - tile_x) / (512 / key.cpp) * 4096;
- } else {
- /* Y */
- tile_x = key.draw_x % (128 / key.cpp);
- tile_y = key.draw_y % 32;
- tile_base = ((key.draw_y / 32) * (32 * pitch));
- tile_base += (key.draw_x - tile_x) / (128 / key.cpp) * 4096;
- }
- assert(intel->is_g4x || (tile_x == 0 && tile_y == 0));
- assert(tile_x % 4 == 0);
- assert(tile_y % 2 == 0);
- /* Note that the low bits of these fields are missing, so
- * there's the possibility of getting in trouble.
- */
- surf.ss1.base_addr = tile_base;
- surf.ss5.x_offset = tile_x / 4;
- surf.ss5.y_offset = tile_y / 2;
- }
- if (region_bo != NULL)
- surf.ss1.base_addr += region_bo->offset; /* reloc */
-
- surf.ss2.width = key.width - 1;
- surf.ss2.height = key.height - 1;
- brw_set_surface_tiling(&surf, key.tiling);
- surf.ss3.pitch = (key.pitch * key.cpp) - 1;
-
- if (intel->gen < 6) {
- /* _NEW_COLOR */
- surf.ss0.color_blend = key.color_blend;
- surf.ss0.writedisable_red = !key.color_mask[0];
- surf.ss0.writedisable_green = !key.color_mask[1];
- surf.ss0.writedisable_blue = !key.color_mask[2];
- surf.ss0.writedisable_alpha = !key.color_mask[3];