+ /* Do depth formats first. */
+ if (util_format_is_depth_or_stencil(format)) {
+ switch (format) {
+ case PIPE_FORMAT_Z16_UNORM:
+ return util_pack_z(PIPE_FORMAT_Z16_UNORM, border[0]);
+ case PIPE_FORMAT_X8Z24_UNORM:
+ case PIPE_FORMAT_S8_UINT_Z24_UNORM:
+ if (is_r500) {
+ return util_pack_z(PIPE_FORMAT_X8Z24_UNORM, border[0]);
+ } else {
+ return util_pack_z(PIPE_FORMAT_Z16_UNORM, border[0]) << 16;
+ }
+ default:
+ assert(0);
+ return 0;
+ }
+ }
+
+ /* Apply inverse swizzle of the format. */
+ util_format_unswizzle_4f(border_swizzled, border, desc->swizzle);
+
+ /* Compressed formats. */
+ if (util_format_is_compressed(format)) {
+ switch (format) {
+ case PIPE_FORMAT_RGTC1_SNORM:
+ case PIPE_FORMAT_LATC1_SNORM:
+ border_swizzled[0] = border_swizzled[0] < 0 ?
+ border_swizzled[0]*0.5+1 :
+ border_swizzled[0]*0.5;
+ /* Pass through. */
+
+ case PIPE_FORMAT_RGTC1_UNORM:
+ case PIPE_FORMAT_LATC1_UNORM:
+ /* Add 1/32 to round the border color instead of truncating. */
+ /* The Y component is used for the border color. */
+ border_swizzled[1] = border_swizzled[0] + 1.0f/32;
+ util_pack_color(border_swizzled, PIPE_FORMAT_B4G4R4A4_UNORM, &uc);
+ return uc.ui;
+ case PIPE_FORMAT_RGTC2_SNORM:
+ case PIPE_FORMAT_LATC2_SNORM:
+ util_pack_color(border_swizzled, PIPE_FORMAT_R8G8B8A8_SNORM, &uc);
+ return uc.ui;
+ case PIPE_FORMAT_RGTC2_UNORM:
+ case PIPE_FORMAT_LATC2_UNORM:
+ util_pack_color(border_swizzled, PIPE_FORMAT_R8G8B8A8_UNORM, &uc);
+ return uc.ui;
+ case PIPE_FORMAT_DXT1_SRGB:
+ case PIPE_FORMAT_DXT1_SRGBA:
+ case PIPE_FORMAT_DXT3_SRGBA:
+ case PIPE_FORMAT_DXT5_SRGBA:
+ util_pack_color(border_swizzled, PIPE_FORMAT_B8G8R8A8_SRGB, &uc);
+ return uc.ui;
+ default:
+ util_pack_color(border_swizzled, PIPE_FORMAT_B8G8R8A8_UNORM, &uc);
+ return uc.ui;
+ }
+ }
+