+static INLINE uint32_t r600_translate_vertex_data_type(enum pipe_format format)
+{
+ uint32_t result = 0;
+ const struct util_format_description *desc;
+ unsigned i;
+
+ desc = util_format_description(format);
+ if (desc->layout != UTIL_FORMAT_LAYOUT_PLAIN) {
+ goto out_unknown;
+ }
+
+ /* Find the first non-VOID channel. */
+ for (i = 0; i < 4; i++) {
+ if (desc->channel[i].type != UTIL_FORMAT_TYPE_VOID) {
+ break;
+ }
+ }
+
+ switch (desc->channel[i].type) {
+ /* Half-floats, floats, doubles */
+ case UTIL_FORMAT_TYPE_FLOAT:
+ switch (desc->channel[i].size) {
+ case 16:
+ switch (desc->nr_channels) {
+ case 1:
+ result = FMT_16_FLOAT;
+ break;
+ case 2:
+ result = FMT_16_16_FLOAT;
+ break;
+ case 3:
+ result = FMT_16_16_16_FLOAT;
+ break;
+ case 4:
+ result = FMT_16_16_16_16_FLOAT;
+ break;
+ }
+ break;
+ case 32:
+ switch (desc->nr_channels) {
+ case 1:
+ result = FMT_32_FLOAT;
+ break;
+ case 2:
+ result = FMT_32_32_FLOAT;
+ break;
+ case 3:
+ result = FMT_32_32_32_FLOAT;
+ break;
+ case 4:
+ result = FMT_32_32_32_32_FLOAT;
+ break;
+ }
+ break;
+ default:
+ goto out_unknown;
+ }
+ break;
+ /* Unsigned ints */
+ case UTIL_FORMAT_TYPE_UNSIGNED:
+ /* Signed ints */
+ case UTIL_FORMAT_TYPE_SIGNED:
+ switch (desc->channel[i].size) {
+ case 8:
+ switch (desc->nr_channels) {
+ case 1:
+ result = FMT_8;
+ break;
+ case 2:
+ result = FMT_8_8;
+ break;
+ case 3:
+ // result = FMT_8_8_8; /* fails piglit draw-vertices test */
+ // break;
+ case 4:
+ result = FMT_8_8_8_8;
+ break;
+ }
+ break;
+ case 16:
+ switch (desc->nr_channels) {
+ case 1:
+ result = FMT_16;
+ break;
+ case 2:
+ result = FMT_16_16;
+ break;
+ case 3:
+ // result = FMT_16_16_16; /* fails piglit draw-vertices test */
+ // break;
+ case 4:
+ result = FMT_16_16_16_16;
+ break;
+ }
+ break;
+ case 32:
+ switch (desc->nr_channels) {
+ case 1:
+ result = FMT_32;
+ break;
+ case 2:
+ result = FMT_32_32;
+ break;
+ case 3:
+ result = FMT_32_32_32;
+ break;
+ case 4:
+ result = FMT_32_32_32_32;
+ break;
+ }
+ break;
+ default:
+ goto out_unknown;
+ }
+ break;
+ default:
+ goto out_unknown;
+ }
+
+ result = S_038008_DATA_FORMAT(result);
+
+ if (desc->channel[i].type == UTIL_FORMAT_TYPE_SIGNED) {
+ result |= S_038008_FORMAT_COMP_ALL(1);
+ }
+ if (desc->channel[i].normalized) {
+ result |= S_038008_NUM_FORMAT_ALL(0);
+ } else {
+ result |= S_038008_NUM_FORMAT_ALL(2);
+ }
+ return result;
+out_unknown:
+ R600_ERR("unsupported vertex format %s\n", util_format_name(format));
+ return ~0;
+}
+