gallium/u_vbuf: split u_vbuf_get_minmax_index function (v2)
This will be used by indirect multidraws. v2: clean up the function further, change return types to unsigned Reviewed-by: Eric Anholt <eric@anholt.net> (v1)
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@ -1022,13 +1022,84 @@ static boolean u_vbuf_mapping_vertex_buffer_blocks(const struct u_vbuf *mgr)
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mgr->nonzero_stride_vb_mask)) != 0;
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}
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static void u_vbuf_get_minmax_index(struct pipe_context *pipe,
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static void
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u_vbuf_get_minmax_index_mapped(const struct pipe_draw_info *info,
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const void *indices, unsigned *out_min_index,
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unsigned *out_max_index)
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{
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unsigned max = 0;
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unsigned min = ~0u;
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switch (info->index_size) {
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case 4: {
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const unsigned *ui_indices = (const unsigned*)indices;
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if (info->primitive_restart) {
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for (unsigned i = 0; i < info->count; i++) {
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if (ui_indices[i] != info->restart_index) {
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if (ui_indices[i] > max) max = ui_indices[i];
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if (ui_indices[i] < min) min = ui_indices[i];
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}
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}
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}
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else {
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for (unsigned i = 0; i < info->count; i++) {
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if (ui_indices[i] > max) max = ui_indices[i];
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if (ui_indices[i] < min) min = ui_indices[i];
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}
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}
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break;
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}
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case 2: {
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const unsigned short *us_indices = (const unsigned short*)indices;
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if (info->primitive_restart) {
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for (unsigned i = 0; i < info->count; i++) {
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if (us_indices[i] != info->restart_index) {
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if (us_indices[i] > max) max = us_indices[i];
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if (us_indices[i] < min) min = us_indices[i];
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}
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}
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}
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else {
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for (unsigned i = 0; i < info->count; i++) {
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if (us_indices[i] > max) max = us_indices[i];
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if (us_indices[i] < min) min = us_indices[i];
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}
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}
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break;
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}
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case 1: {
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const unsigned char *ub_indices = (const unsigned char*)indices;
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if (info->primitive_restart) {
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for (unsigned i = 0; i < info->count; i++) {
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if (ub_indices[i] != info->restart_index) {
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if (ub_indices[i] > max) max = ub_indices[i];
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if (ub_indices[i] < min) min = ub_indices[i];
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}
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}
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}
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else {
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for (unsigned i = 0; i < info->count; i++) {
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if (ub_indices[i] > max) max = ub_indices[i];
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if (ub_indices[i] < min) min = ub_indices[i];
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}
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}
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break;
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}
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default:
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assert(0);
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}
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*out_min_index = min;
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*out_max_index = max;
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}
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static void
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u_vbuf_get_minmax_index(struct pipe_context *pipe,
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const struct pipe_draw_info *info,
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int *out_min_index, int *out_max_index)
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unsigned *out_min_index, unsigned *out_max_index)
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{
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struct pipe_transfer *transfer = NULL;
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const void *indices;
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unsigned i;
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if (info->has_user_indices) {
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indices = (uint8_t*)info->index.user +
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@ -1040,78 +1111,7 @@ static void u_vbuf_get_minmax_index(struct pipe_context *pipe,
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PIPE_TRANSFER_READ, &transfer);
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}
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switch (info->index_size) {
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case 4: {
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const unsigned *ui_indices = (const unsigned*)indices;
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unsigned max_ui = 0;
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unsigned min_ui = ~0U;
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if (info->primitive_restart) {
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for (i = 0; i < info->count; i++) {
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if (ui_indices[i] != info->restart_index) {
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if (ui_indices[i] > max_ui) max_ui = ui_indices[i];
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if (ui_indices[i] < min_ui) min_ui = ui_indices[i];
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}
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}
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}
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else {
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for (i = 0; i < info->count; i++) {
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if (ui_indices[i] > max_ui) max_ui = ui_indices[i];
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if (ui_indices[i] < min_ui) min_ui = ui_indices[i];
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}
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}
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*out_min_index = min_ui;
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*out_max_index = max_ui;
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break;
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}
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case 2: {
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const unsigned short *us_indices = (const unsigned short*)indices;
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unsigned max_us = 0;
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unsigned min_us = ~0U;
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if (info->primitive_restart) {
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for (i = 0; i < info->count; i++) {
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if (us_indices[i] != info->restart_index) {
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if (us_indices[i] > max_us) max_us = us_indices[i];
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if (us_indices[i] < min_us) min_us = us_indices[i];
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}
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}
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}
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else {
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for (i = 0; i < info->count; i++) {
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if (us_indices[i] > max_us) max_us = us_indices[i];
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if (us_indices[i] < min_us) min_us = us_indices[i];
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}
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}
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*out_min_index = min_us;
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*out_max_index = max_us;
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break;
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}
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case 1: {
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const unsigned char *ub_indices = (const unsigned char*)indices;
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unsigned max_ub = 0;
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unsigned min_ub = ~0U;
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if (info->primitive_restart) {
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for (i = 0; i < info->count; i++) {
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if (ub_indices[i] != info->restart_index) {
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if (ub_indices[i] > max_ub) max_ub = ub_indices[i];
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if (ub_indices[i] < min_ub) min_ub = ub_indices[i];
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}
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}
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}
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else {
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for (i = 0; i < info->count; i++) {
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if (ub_indices[i] > max_ub) max_ub = ub_indices[i];
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if (ub_indices[i] < min_ub) min_ub = ub_indices[i];
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}
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}
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*out_min_index = min_ub;
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*out_max_index = max_ub;
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break;
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}
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default:
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assert(0);
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*out_min_index = 0;
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*out_max_index = 0;
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}
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u_vbuf_get_minmax_index_mapped(info, indices, out_min_index, out_max_index);
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if (transfer) {
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pipe_buffer_unmap(pipe, transfer);
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@ -1134,7 +1134,8 @@ static void u_vbuf_set_driver_vertex_buffers(struct u_vbuf *mgr)
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void u_vbuf_draw_vbo(struct u_vbuf *mgr, const struct pipe_draw_info *info)
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{
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struct pipe_context *pipe = mgr->pipe;
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int start_vertex, min_index;
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int start_vertex;
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unsigned min_index;
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unsigned num_vertices;
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boolean unroll_indices = FALSE;
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const uint32_t used_vb_mask = mgr->ve->used_vb_mask;
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@ -1191,7 +1192,7 @@ void u_vbuf_draw_vbo(struct u_vbuf *mgr, const struct pipe_draw_info *info)
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if (new_info.index_size) {
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/* See if anything needs to be done for per-vertex attribs. */
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if (u_vbuf_need_minmax_index(mgr)) {
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int max_index;
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unsigned max_index;
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if (new_info.max_index != ~0u) {
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min_index = new_info.min_index;
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