* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE. */
-/**
- * The functions below translate vertex buffers to the layout compatible
- * with the hardware, so that all vertex fetches are be DWORD-aligned and all
- * used vertex formats are supported.
- */
-
#include "r300_context.h"
-#include "translate/translate.h"
-
-void r300_begin_vertex_translate(struct r300_context *r300)
-{
- struct pipe_context *pipe = &r300->context;
- struct translate_key key = {0};
- struct translate_element *te;
- unsigned tr_elem_index[PIPE_MAX_ATTRIBS] = {0};
- struct translate *tr;
- struct r300_vertex_element_state *ve = r300->velems;
- boolean vb_translated[PIPE_MAX_ATTRIBS] = {0};
- void *vb_map[PIPE_MAX_ATTRIBS] = {0}, *out_map;
- struct pipe_transfer *vb_transfer[PIPE_MAX_ATTRIBS] = {0}, *out_transfer;
- struct pipe_resource *out_buffer;
- unsigned i, num_verts;
-
- /* Initialize the translate key, i.e. the recipe how vertices should be
- * translated. */
- for (i = 0; i < ve->count; i++) {
- struct pipe_vertex_buffer *vb =
- &r300->vertex_buffer[ve->velem[i].vertex_buffer_index];
-
- /* Check for support. */
- if (ve->velem[i].src_format == ve->hw_format[i] &&
- (vb->buffer_offset + ve->velem[i].src_offset) % 4 == 0 &&
- vb->stride % 4 == 0) {
- continue;
- }
-
- /* Add this vertex element. */
- te = &key.element[key.nr_elements];
- /*te->type;
- te->instance_divisor;*/
- te->input_buffer = ve->velem[i].vertex_buffer_index;
- te->input_format = ve->velem[i].src_format;
- te->input_offset = vb->buffer_offset + ve->velem[i].src_offset;
- te->output_format = ve->hw_format[i];
- te->output_offset = key.output_stride;
-
- key.output_stride += ve->hw_format_size[i];
- vb_translated[ve->velem[i].vertex_buffer_index] = TRUE;
- tr_elem_index[i] = key.nr_elements;
- key.nr_elements++;
- }
-
- /* Get a translate object. */
- tr = translate_cache_find(r300->tran.translate_cache, &key);
-
- /* Map buffers we want to translate. */
- for (i = 0; i < r300->vertex_buffer_count; i++) {
- if (vb_translated[i]) {
- struct pipe_vertex_buffer *vb = &r300->vertex_buffer[i];
-
- vb_map[i] = pipe_buffer_map(pipe, vb->buffer,
- PIPE_TRANSFER_READ, &vb_transfer[i]);
-
- tr->set_buffer(tr, i, vb_map[i], vb->stride, vb->max_index);
- }
- }
-
- /* Create and map the output buffer. */
- num_verts = r300->vertex_buffer_max_index + 1;
+#include "util/u_index_modify.h"
+#include "util/u_upload_mgr.h"
- out_buffer = pipe_buffer_create(&r300->screen->screen,
- PIPE_BIND_VERTEX_BUFFER,
- key.output_stride * num_verts);
- out_map = pipe_buffer_map(pipe, out_buffer, PIPE_TRANSFER_WRITE,
- &out_transfer);
-
- /* Translate. */
- tr->run(tr, 0, num_verts, 0, out_map);
-
- /* Unmap all buffers. */
- for (i = 0; i < r300->vertex_buffer_count; i++) {
- if (vb_translated[i]) {
- pipe_buffer_unmap(pipe, r300->vertex_buffer[i].buffer,
- vb_transfer[i]);
- }
- }
-
- pipe_buffer_unmap(pipe, out_buffer, out_transfer);
-
- /* Setup the new vertex buffer in the first free slot. */
- for (i = 0; i < PIPE_MAX_ATTRIBS; i++) {
- struct pipe_vertex_buffer *vb = &r300->vertex_buffer[i];
-
- if (!vb->buffer) {
- pipe_resource_reference(&vb->buffer, out_buffer);
- vb->buffer_offset = 0;
- vb->max_index = num_verts - 1;
- vb->stride = key.output_stride;
- r300->tran.vb_slot = i;
- break;
+void r300_translate_index_buffer(struct r300_context *r300,
+ const struct pipe_draw_info *info,
+ struct pipe_resource **out_buffer,
+ unsigned *index_size, unsigned index_offset,
+ unsigned *start, unsigned count)
+{
+ unsigned out_offset;
+ void *ptr;
+
+ switch (*index_size) {
+ case 1:
+ *out_buffer = NULL;
+ u_upload_alloc(r300->uploader, 0, count * 2, 4,
+ &out_offset, out_buffer, &ptr);
+
+ util_shorten_ubyte_elts_to_userptr(
+ &r300->context, info, PIPE_TRANSFER_UNSYNCHRONIZED, index_offset,
+ *start, count, ptr);
+
+ *index_size = 2;
+ *start = out_offset / 2;
+ break;
+
+ case 2:
+ if (index_offset) {
+ *out_buffer = NULL;
+ u_upload_alloc(r300->uploader, 0, count * 2, 4,
+ &out_offset, out_buffer, &ptr);
+
+ util_rebuild_ushort_elts_to_userptr(&r300->context, info,
+ PIPE_TRANSFER_UNSYNCHRONIZED,
+ index_offset, *start,
+ count, ptr);
+
+ *start = out_offset / 2;
}
- }
+ break;
- /* Save and replace vertex elements. */
- {
- struct pipe_vertex_element new_velems[PIPE_MAX_ATTRIBS];
+ case 4:
+ if (index_offset) {
+ *out_buffer = NULL;
+ u_upload_alloc(r300->uploader, 0, count * 4, 4,
+ &out_offset, out_buffer, &ptr);
- r300->tran.saved_velems = r300->velems;
+ util_rebuild_uint_elts_to_userptr(&r300->context, info,
+ PIPE_TRANSFER_UNSYNCHRONIZED,
+ index_offset, *start,
+ count, ptr);
- for (i = 0; i < ve->count; i++) {
- if (vb_translated[ve->velem[i].vertex_buffer_index]) {
- te = &key.element[tr_elem_index[i]];
- new_velems[i].instance_divisor = ve->velem[i].instance_divisor;
- new_velems[i].src_format = te->output_format;
- new_velems[i].src_offset = te->output_offset;
- new_velems[i].vertex_buffer_index = r300->tran.vb_slot;
- } else {
- memcpy(&new_velems[i], &ve->velem[i],
- sizeof(struct pipe_vertex_element));
- }
+ *start = out_offset / 4;
}
-
- r300->tran.new_velems =
- pipe->create_vertex_elements_state(pipe, ve->count, new_velems);
- pipe->bind_vertex_elements_state(pipe, r300->tran.new_velems);
+ break;
}
-
- pipe_resource_reference(&out_buffer, NULL);
-}
-
-void r300_end_vertex_translate(struct r300_context *r300)
-{
- struct pipe_context *pipe = &r300->context;
-
- /* Restore vertex elements. */
- pipe->bind_vertex_elements_state(pipe, r300->tran.saved_velems);
- pipe->delete_vertex_elements_state(pipe, r300->tran.new_velems);
-
- /* Delete the now-unused VBO. */
- pipe_resource_reference(&r300->vertex_buffer[r300->tran.vb_slot].buffer,
- NULL);
}
projects / mesa.git / blobdiff