/************************************************************************** * * Copyright 2011 Marek Olšák * All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sub license, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial portions * of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. * IN NO EVENT SHALL AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * **************************************************************************/ #include "util/u_vbuf.h" #include "util/u_dump.h" #include "util/u_format.h" #include "util/u_inlines.h" #include "util/u_memory.h" #include "util/u_upload_mgr.h" #include "translate/translate.h" #include "translate/translate_cache.h" #include "cso_cache/cso_cache.h" #include "cso_cache/cso_hash.h" struct u_vbuf_elements { unsigned count; struct pipe_vertex_element ve[PIPE_MAX_ATTRIBS]; unsigned src_format_size[PIPE_MAX_ATTRIBS]; /* If (velem[i].src_format != native_format[i]), the vertex buffer * referenced by the vertex element cannot be used for rendering and * its vertex data must be translated to native_format[i]. */ enum pipe_format native_format[PIPE_MAX_ATTRIBS]; unsigned native_format_size[PIPE_MAX_ATTRIBS]; /* This might mean two things: * - src_format != native_format, as discussed above. * - src_offset % 4 != 0 (if the caps don't allow such an offset). */ boolean incompatible_layout; /* Per-element flags. */ boolean incompatible_layout_elem[PIPE_MAX_ATTRIBS]; void *driver_cso; }; enum { VB_VERTEX = 0, VB_INSTANCE = 1, VB_CONST = 2, VB_NUM = 3 }; struct u_vbuf_priv { struct u_vbuf b; struct u_vbuf_caps caps; struct pipe_context *pipe; struct translate_cache *translate_cache; struct cso_cache *cso_cache; /* Vertex buffers for the driver. * There are no user buffers. */ struct pipe_vertex_buffer real_vertex_buffer[PIPE_MAX_ATTRIBS]; int nr_real_vertex_buffers; boolean vertex_buffers_dirty; /* The index buffer. */ struct pipe_index_buffer index_buffer; /* and its associated helper structure for this module. */ struct u_vbuf_elements *ve; /* Vertex elements used for the translate fallback. */ struct pipe_vertex_element fallback_velems[PIPE_MAX_ATTRIBS]; /* If non-NULL, this is a vertex element state used for the translate * fallback and therefore used for rendering too. */ void *fallback_ve; /* The vertex buffer slot index where translated vertices have been * stored in. */ unsigned fallback_vbs[VB_NUM]; /* Whether there is any user buffer. */ boolean any_user_vbs; /* Whether there is a buffer with a non-native layout. */ boolean incompatible_vb_layout; /* Per-buffer flags. */ boolean incompatible_vb[PIPE_MAX_ATTRIBS]; void (*driver_set_index_buffer)(struct pipe_context *pipe, const struct pipe_index_buffer *); void (*driver_set_vertex_buffers)(struct pipe_context *, unsigned num_buffers, const struct pipe_vertex_buffer *); void *(*driver_create_vertex_elements_state)(struct pipe_context *, unsigned num_elements, const struct pipe_vertex_element *); void (*driver_bind_vertex_elements_state)(struct pipe_context *, void *); void (*driver_delete_vertex_elements_state)(struct pipe_context *, void *); void (*driver_draw_vbo)(struct pipe_context *pipe, const struct pipe_draw_info *info); }; void u_vbuf_get_caps(struct pipe_screen *screen, struct u_vbuf_caps *caps) { caps->format_fixed32 = screen->is_format_supported(screen, PIPE_FORMAT_R32_FIXED, PIPE_BUFFER, 0, PIPE_BIND_VERTEX_BUFFER); caps->format_float16 = screen->is_format_supported(screen, PIPE_FORMAT_R16_FLOAT, PIPE_BUFFER, 0, PIPE_BIND_VERTEX_BUFFER); caps->format_float64 = screen->is_format_supported(screen, PIPE_FORMAT_R64_FLOAT, PIPE_BUFFER, 0, PIPE_BIND_VERTEX_BUFFER); caps->format_norm32 = screen->is_format_supported(screen, PIPE_FORMAT_R32_UNORM, PIPE_BUFFER, 0, PIPE_BIND_VERTEX_BUFFER) && screen->is_format_supported(screen, PIPE_FORMAT_R32_SNORM, PIPE_BUFFER, 0, PIPE_BIND_VERTEX_BUFFER); caps->format_scaled32 = screen->is_format_supported(screen, PIPE_FORMAT_R32_USCALED, PIPE_BUFFER, 0, PIPE_BIND_VERTEX_BUFFER) && screen->is_format_supported(screen, PIPE_FORMAT_R32_SSCALED, PIPE_BUFFER, 0, PIPE_BIND_VERTEX_BUFFER); caps->fetch_dword_unaligned = !screen->get_param(screen, PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY) && !screen->get_param(screen, PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY) && !screen->get_param(screen, PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY); caps->user_vertex_buffers = screen->get_param(screen, PIPE_CAP_USER_VERTEX_BUFFERS); } static void u_vbuf_install(struct u_vbuf_priv *mgr); struct u_vbuf * u_vbuf_create(struct pipe_context *pipe, struct u_vbuf_caps *caps, unsigned upload_buffer_size, unsigned upload_buffer_alignment, unsigned upload_buffer_bind) { struct u_vbuf_priv *mgr = CALLOC_STRUCT(u_vbuf_priv); mgr->caps = *caps; mgr->pipe = pipe; mgr->cso_cache = cso_cache_create(); mgr->translate_cache = translate_cache_create(); memset(mgr->fallback_vbs, ~0, sizeof(mgr->fallback_vbs)); mgr->b.uploader = u_upload_create(pipe, upload_buffer_size, upload_buffer_alignment, upload_buffer_bind); u_vbuf_install(mgr); return &mgr->b; } /* XXX I had to fork this off of cso_context. */ static void * u_vbuf_cache_set_vertex_elements(struct u_vbuf_priv *mgr, unsigned count, const struct pipe_vertex_element *states) { unsigned key_size, hash_key; struct cso_hash_iter iter; void *handle; struct cso_velems_state velems_state; /* need to include the count into the stored state data too. */ key_size = sizeof(struct pipe_vertex_element) * count + sizeof(unsigned); velems_state.count = count; memcpy(velems_state.velems, states, sizeof(struct pipe_vertex_element) * count); hash_key = cso_construct_key((void*)&velems_state, key_size); iter = cso_find_state_template(mgr->cso_cache, hash_key, CSO_VELEMENTS, (void*)&velems_state, key_size); if (cso_hash_iter_is_null(iter)) { struct cso_velements *cso = MALLOC_STRUCT(cso_velements); memcpy(&cso->state, &velems_state, key_size); cso->data = mgr->driver_create_vertex_elements_state(mgr->pipe, count, &cso->state.velems[0]); cso->delete_state = (cso_state_callback)mgr->driver_delete_vertex_elements_state; cso->context = mgr->pipe; iter = cso_insert_state(mgr->cso_cache, hash_key, CSO_VELEMENTS, cso); handle = cso->data; } else { handle = ((struct cso_velements *)cso_hash_iter_data(iter))->data; } mgr->driver_bind_vertex_elements_state(mgr->pipe, handle); return handle; } void u_vbuf_destroy(struct u_vbuf *mgrb) { struct u_vbuf_priv *mgr = (struct u_vbuf_priv*)mgrb; unsigned i; assert(mgr->pipe->draw); mgr->pipe->draw = NULL; for (i = 0; i < mgr->b.nr_vertex_buffers; i++) { pipe_resource_reference(&mgr->b.vertex_buffer[i].buffer, NULL); } for (i = 0; i < mgr->nr_real_vertex_buffers; i++) { pipe_resource_reference(&mgr->real_vertex_buffer[i].buffer, NULL); } translate_cache_destroy(mgr->translate_cache); u_upload_destroy(mgr->b.uploader); cso_cache_delete(mgr->cso_cache); FREE(mgr); } static void u_vbuf_translate_buffers(struct u_vbuf_priv *mgr, struct translate_key *key, unsigned vb_mask, unsigned out_vb, int start_vertex, unsigned num_vertices, int start_index, unsigned num_indices, int min_index, bool unroll_indices) { struct translate *tr; struct pipe_transfer *vb_transfer[PIPE_MAX_ATTRIBS] = {0}; struct pipe_resource *out_buffer = NULL; uint8_t *out_map; unsigned i, out_offset; /* Get a translate object. */ tr = translate_cache_find(mgr->translate_cache, key); /* Map buffers we want to translate. */ for (i = 0; i < mgr->b.nr_vertex_buffers; i++) { if (vb_mask & (1 << i)) { struct pipe_vertex_buffer *vb = &mgr->b.vertex_buffer[i]; unsigned offset = vb->buffer_offset + vb->stride * start_vertex; uint8_t *map; if (vb->buffer->user_ptr) { map = vb->buffer->user_ptr + offset; } else { unsigned size = vb->stride ? num_vertices * vb->stride : sizeof(double)*4; if (offset+size > vb->buffer->width0) { size = vb->buffer->width0 - offset; } map = pipe_buffer_map_range(mgr->pipe, vb->buffer, offset, size, PIPE_TRANSFER_READ, &vb_transfer[i]); } /* Subtract min_index so that indexing with the index buffer works. */ if (unroll_indices) { map -= vb->stride * min_index; } tr->set_buffer(tr, i, map, vb->stride, ~0); } } /* Translate. */ if (unroll_indices) { struct pipe_index_buffer *ib = &mgr->index_buffer; struct pipe_transfer *transfer = NULL; unsigned offset = ib->offset + start_index * ib->index_size; uint8_t *map; assert(ib->buffer && ib->index_size); if (ib->buffer->user_ptr) { map = ib->buffer->user_ptr + offset; } else { map = pipe_buffer_map_range(mgr->pipe, ib->buffer, offset, num_indices * ib->index_size, PIPE_TRANSFER_READ, &transfer); } /* Create and map the output buffer. */ u_upload_alloc(mgr->b.uploader, 0, key->output_stride * num_indices, &out_offset, &out_buffer, (void**)&out_map); switch (ib->index_size) { case 4: tr->run_elts(tr, (unsigned*)map, num_indices, 0, out_map); break; case 2: tr->run_elts16(tr, (uint16_t*)map, num_indices, 0, out_map); break; case 1: tr->run_elts8(tr, map, num_indices, 0, out_map); break; } if (transfer) { pipe_buffer_unmap(mgr->pipe, transfer); } } else { /* Create and map the output buffer. */ u_upload_alloc(mgr->b.uploader, key->output_stride * start_vertex, key->output_stride * num_vertices, &out_offset, &out_buffer, (void**)&out_map); out_offset -= key->output_stride * start_vertex; tr->run(tr, 0, num_vertices, 0, out_map); } /* Unmap all buffers. */ for (i = 0; i < mgr->b.nr_vertex_buffers; i++) { if (vb_transfer[i]) { pipe_buffer_unmap(mgr->pipe, vb_transfer[i]); } } /* Setup the new vertex buffer. */ mgr->real_vertex_buffer[out_vb].buffer_offset = out_offset; mgr->real_vertex_buffer[out_vb].stride = key->output_stride; /* Move the buffer reference. */ pipe_resource_reference( &mgr->real_vertex_buffer[out_vb].buffer, NULL); mgr->real_vertex_buffer[out_vb].buffer = out_buffer; } static boolean u_vbuf_translate_find_free_vb_slots(struct u_vbuf_priv *mgr, unsigned mask[VB_NUM]) { unsigned i, type; unsigned nr = mgr->ve->count; boolean used_vb[PIPE_MAX_ATTRIBS] = {0}; unsigned fallback_vbs[VB_NUM]; memset(fallback_vbs, ~0, sizeof(fallback_vbs)); /* Mark used vertex buffers as... used. */ for (i = 0; i < nr; i++) { if (!mgr->ve->incompatible_layout_elem[i]) { unsigned index = mgr->ve->ve[i].vertex_buffer_index; if (!mgr->incompatible_vb[index]) { used_vb[index] = TRUE; } } } /* Find free slots for each type if needed. */ i = 0; for (type = 0; type < VB_NUM; type++) { if (mask[type]) { for (; i < PIPE_MAX_ATTRIBS; i++) { if (!used_vb[i]) { /*printf("found slot=%i for type=%i\n", i, type);*/ fallback_vbs[type] = i; i++; if (i > mgr->nr_real_vertex_buffers) { mgr->nr_real_vertex_buffers = i; } break; } } if (i == PIPE_MAX_ATTRIBS) { /* fail, reset the number to its original value */ mgr->nr_real_vertex_buffers = mgr->b.nr_vertex_buffers; return FALSE; } } } memcpy(mgr->fallback_vbs, fallback_vbs, sizeof(fallback_vbs)); return TRUE; } static boolean u_vbuf_translate_begin(struct u_vbuf_priv *mgr, int start_vertex, unsigned num_vertices, int start_instance, unsigned num_instances, int start_index, unsigned num_indices, int min_index, bool unroll_indices) { unsigned mask[VB_NUM] = {0}; struct translate_key key[VB_NUM]; unsigned elem_index[VB_NUM][PIPE_MAX_ATTRIBS]; /* ... into key.elements */ unsigned i, type; int start[VB_NUM] = { start_vertex, /* VERTEX */ start_instance, /* INSTANCE */ 0 /* CONST */ }; unsigned num[VB_NUM] = { num_vertices, /* VERTEX */ num_instances, /* INSTANCE */ 1 /* CONST */ }; memset(key, 0, sizeof(key)); memset(elem_index, ~0, sizeof(elem_index)); /* See if there are vertex attribs of each type to translate and * which ones. */ for (i = 0; i < mgr->ve->count; i++) { unsigned vb_index = mgr->ve->ve[i].vertex_buffer_index; if (!mgr->b.vertex_buffer[vb_index].stride) { if (!mgr->ve->incompatible_layout_elem[i] && !mgr->incompatible_vb[vb_index]) { continue; } mask[VB_CONST] |= 1 << vb_index; } else if (mgr->ve->ve[i].instance_divisor) { if (!mgr->ve->incompatible_layout_elem[i] && !mgr->incompatible_vb[vb_index]) { continue; } mask[VB_INSTANCE] |= 1 << vb_index; } else { if (!unroll_indices && !mgr->ve->incompatible_layout_elem[i] && !mgr->incompatible_vb[vb_index]) { continue; } mask[VB_VERTEX] |= 1 << vb_index; } } assert(mask[VB_VERTEX] || mask[VB_INSTANCE] || mask[VB_CONST]); /* Find free vertex buffer slots. */ if (!u_vbuf_translate_find_free_vb_slots(mgr, mask)) { return FALSE; } /* Initialize the translate keys. */ for (i = 0; i < mgr->ve->count; i++) { struct translate_key *k; struct translate_element *te; unsigned bit, vb_index = mgr->ve->ve[i].vertex_buffer_index; bit = 1 << vb_index; if (!mgr->ve->incompatible_layout_elem[i] && !mgr->incompatible_vb[vb_index] && (!unroll_indices || !(mask[VB_VERTEX] & bit))) { continue; } /* Set type to what we will translate. * Whether vertex, instance, or constant attribs. */ for (type = 0; type < VB_NUM; type++) { if (mask[type] & bit) { break; } } assert(type < VB_NUM); assert(translate_is_output_format_supported(mgr->ve->native_format[i])); /*printf("velem=%i type=%i\n", i, type);*/ /* Add the vertex element. */ k = &key[type]; elem_index[type][i] = k->nr_elements; te = &k->element[k->nr_elements]; te->type = TRANSLATE_ELEMENT_NORMAL; te->instance_divisor = 0; te->input_buffer = vb_index; te->input_format = mgr->ve->ve[i].src_format; te->input_offset = mgr->ve->ve[i].src_offset; te->output_format = mgr->ve->native_format[i]; te->output_offset = k->output_stride; k->output_stride += mgr->ve->native_format_size[i]; k->nr_elements++; } /* Translate buffers. */ for (type = 0; type < VB_NUM; type++) { if (key[type].nr_elements) { u_vbuf_translate_buffers(mgr, &key[type], mask[type], mgr->fallback_vbs[type], start[type], num[type], start_index, num_indices, min_index, unroll_indices && type == VB_VERTEX); /* Fixup the stride for constant attribs. */ if (type == VB_CONST) { mgr->real_vertex_buffer[mgr->fallback_vbs[VB_CONST]].stride = 0; } } } /* Setup new vertex elements. */ for (i = 0; i < mgr->ve->count; i++) { for (type = 0; type < VB_NUM; type++) { if (elem_index[type][i] < key[type].nr_elements) { struct translate_element *te = &key[type].element[elem_index[type][i]]; mgr->fallback_velems[i].instance_divisor = mgr->ve->ve[i].instance_divisor; mgr->fallback_velems[i].src_format = te->output_format; mgr->fallback_velems[i].src_offset = te->output_offset; mgr->fallback_velems[i].vertex_buffer_index = mgr->fallback_vbs[type]; /* elem_index[type][i] can only be set for one type. */ assert(type > VB_INSTANCE || elem_index[type+1][i] == ~0); assert(type > VB_VERTEX || elem_index[type+2][i] == ~0); break; } } /* No translating, just copy the original vertex element over. */ if (type == VB_NUM) { memcpy(&mgr->fallback_velems[i], &mgr->ve->ve[i], sizeof(struct pipe_vertex_element)); } } mgr->fallback_ve = u_vbuf_cache_set_vertex_elements(mgr, mgr->ve->count, mgr->fallback_velems); return TRUE; } static void u_vbuf_translate_end(struct u_vbuf_priv *mgr) { unsigned i; /* Restore vertex elements. */ mgr->driver_bind_vertex_elements_state(mgr->pipe, mgr->ve->driver_cso); mgr->fallback_ve = NULL; /* Unreference the now-unused VBOs. */ for (i = 0; i < VB_NUM; i++) { unsigned vb = mgr->fallback_vbs[i]; if (vb != ~0) { pipe_resource_reference(&mgr->real_vertex_buffer[vb].buffer, NULL); mgr->fallback_vbs[i] = ~0; } } mgr->nr_real_vertex_buffers = mgr->b.nr_vertex_buffers; } #define FORMAT_REPLACE(what, withwhat) \ case PIPE_FORMAT_##what: format = PIPE_FORMAT_##withwhat; break static void * u_vbuf_create_vertex_elements(struct pipe_context *pipe, unsigned count, const struct pipe_vertex_element *attribs) { struct u_vbuf_priv *mgr = (struct u_vbuf_priv*)pipe->draw; unsigned i; struct pipe_vertex_element native_attribs[PIPE_MAX_ATTRIBS]; struct u_vbuf_elements *ve = CALLOC_STRUCT(u_vbuf_elements); ve->count = count; memcpy(ve->ve, attribs, sizeof(struct pipe_vertex_element) * count); memcpy(native_attribs, attribs, sizeof(struct pipe_vertex_element) * count); /* Set the best native format in case the original format is not * supported. */ for (i = 0; i < count; i++) { enum pipe_format format = ve->ve[i].src_format; ve->src_format_size[i] = util_format_get_blocksize(format); /* Choose a native format. * For now we don't care about the alignment, that's going to * be sorted out later. */ if (!mgr->caps.format_fixed32) { switch (format) { FORMAT_REPLACE(R32_FIXED, R32_FLOAT); FORMAT_REPLACE(R32G32_FIXED, R32G32_FLOAT); FORMAT_REPLACE(R32G32B32_FIXED, R32G32B32_FLOAT); FORMAT_REPLACE(R32G32B32A32_FIXED, R32G32B32A32_FLOAT); default:; } } if (!mgr->caps.format_float16) { switch (format) { FORMAT_REPLACE(R16_FLOAT, R32_FLOAT); FORMAT_REPLACE(R16G16_FLOAT, R32G32_FLOAT); FORMAT_REPLACE(R16G16B16_FLOAT, R32G32B32_FLOAT); FORMAT_REPLACE(R16G16B16A16_FLOAT, R32G32B32A32_FLOAT); default:; } } if (!mgr->caps.format_float64) { switch (format) { FORMAT_REPLACE(R64_FLOAT, R32_FLOAT); FORMAT_REPLACE(R64G64_FLOAT, R32G32_FLOAT); FORMAT_REPLACE(R64G64B64_FLOAT, R32G32B32_FLOAT); FORMAT_REPLACE(R64G64B64A64_FLOAT, R32G32B32A32_FLOAT); default:; } } if (!mgr->caps.format_norm32) { switch (format) { FORMAT_REPLACE(R32_UNORM, R32_FLOAT); FORMAT_REPLACE(R32G32_UNORM, R32G32_FLOAT); FORMAT_REPLACE(R32G32B32_UNORM, R32G32B32_FLOAT); FORMAT_REPLACE(R32G32B32A32_UNORM, R32G32B32A32_FLOAT); FORMAT_REPLACE(R32_SNORM, R32_FLOAT); FORMAT_REPLACE(R32G32_SNORM, R32G32_FLOAT); FORMAT_REPLACE(R32G32B32_SNORM, R32G32B32_FLOAT); FORMAT_REPLACE(R32G32B32A32_SNORM, R32G32B32A32_FLOAT); default:; } } if (!mgr->caps.format_scaled32) { switch (format) { FORMAT_REPLACE(R32_USCALED, R32_FLOAT); FORMAT_REPLACE(R32G32_USCALED, R32G32_FLOAT); FORMAT_REPLACE(R32G32B32_USCALED, R32G32B32_FLOAT); FORMAT_REPLACE(R32G32B32A32_USCALED,R32G32B32A32_FLOAT); FORMAT_REPLACE(R32_SSCALED, R32_FLOAT); FORMAT_REPLACE(R32G32_SSCALED, R32G32_FLOAT); FORMAT_REPLACE(R32G32B32_SSCALED, R32G32B32_FLOAT); FORMAT_REPLACE(R32G32B32A32_SSCALED,R32G32B32A32_FLOAT); default:; } } native_attribs[i].src_format = format; ve->native_format[i] = format; ve->native_format_size[i] = util_format_get_blocksize(ve->native_format[i]); ve->incompatible_layout_elem[i] = ve->ve[i].src_format != ve->native_format[i] || (!mgr->caps.fetch_dword_unaligned && ve->ve[i].src_offset % 4 != 0); ve->incompatible_layout = ve->incompatible_layout || ve->incompatible_layout_elem[i]; } /* Align the formats to the size of DWORD if needed. */ if (!mgr->caps.fetch_dword_unaligned) { for (i = 0; i < count; i++) { ve->native_format_size[i] = align(ve->native_format_size[i], 4); } } ve->driver_cso = mgr->driver_create_vertex_elements_state(pipe, count, native_attribs); return ve; } static void u_vbuf_bind_vertex_elements(struct pipe_context *pipe, void *cso) { struct u_vbuf_priv *mgr = (struct u_vbuf_priv*)pipe->draw; struct u_vbuf_elements *ve = cso; mgr->ve = ve; mgr->b.vertex_elements = ve; mgr->driver_bind_vertex_elements_state(pipe, ve ? ve->driver_cso : NULL); } static void u_vbuf_delete_vertex_elements(struct pipe_context *pipe, void *cso) { struct u_vbuf_priv *mgr = (struct u_vbuf_priv*)pipe->draw; struct u_vbuf_elements *ve = cso; mgr->driver_delete_vertex_elements_state(pipe, ve->driver_cso); FREE(ve); } static void u_vbuf_set_vertex_buffers(struct pipe_context *pipe, unsigned count, const struct pipe_vertex_buffer *bufs) { struct u_vbuf_priv *mgr = (struct u_vbuf_priv*)pipe->draw; unsigned i; mgr->any_user_vbs = FALSE; mgr->incompatible_vb_layout = FALSE; memset(mgr->incompatible_vb, 0, sizeof(mgr->incompatible_vb)); if (!mgr->caps.fetch_dword_unaligned) { /* Check if the strides and offsets are aligned to the size of DWORD. */ for (i = 0; i < count; i++) { if (bufs[i].buffer) { if (bufs[i].stride % 4 != 0 || bufs[i].buffer_offset % 4 != 0) { mgr->incompatible_vb_layout = TRUE; mgr->incompatible_vb[i] = TRUE; } } } } for (i = 0; i < count; i++) { const struct pipe_vertex_buffer *vb = &bufs[i]; pipe_resource_reference(&mgr->b.vertex_buffer[i].buffer, vb->buffer); mgr->real_vertex_buffer[i].buffer_offset = mgr->b.vertex_buffer[i].buffer_offset = vb->buffer_offset; mgr->real_vertex_buffer[i].stride = mgr->b.vertex_buffer[i].stride = vb->stride; if (!vb->buffer || mgr->incompatible_vb[i]) { pipe_resource_reference(&mgr->real_vertex_buffer[i].buffer, NULL); continue; } if (vb->buffer->user_ptr) { pipe_resource_reference(&mgr->real_vertex_buffer[i].buffer, NULL); mgr->any_user_vbs = TRUE; continue; } pipe_resource_reference(&mgr->real_vertex_buffer[i].buffer, vb->buffer); } for (i = count; i < mgr->b.nr_vertex_buffers; i++) { pipe_resource_reference(&mgr->b.vertex_buffer[i].buffer, NULL); } for (i = count; i < mgr->nr_real_vertex_buffers; i++) { pipe_resource_reference(&mgr->real_vertex_buffer[i].buffer, NULL); } mgr->b.nr_vertex_buffers = count; mgr->nr_real_vertex_buffers = count; mgr->vertex_buffers_dirty = TRUE; } static void u_vbuf_set_index_buffer(struct pipe_context *pipe, const struct pipe_index_buffer *ib) { struct u_vbuf_priv *mgr = pipe->draw; if (ib && ib->buffer) { assert(ib->offset % ib->index_size == 0); pipe_resource_reference(&mgr->index_buffer.buffer, ib->buffer); mgr->index_buffer.offset = ib->offset; mgr->index_buffer.index_size = ib->index_size; } else { pipe_resource_reference(&mgr->index_buffer.buffer, NULL); } mgr->driver_set_index_buffer(pipe, ib); } static void u_vbuf_upload_buffers(struct u_vbuf_priv *mgr, int start_vertex, unsigned num_vertices, int start_instance, unsigned num_instances) { unsigned i; unsigned nr_velems = mgr->ve->count; unsigned nr_vbufs = mgr->b.nr_vertex_buffers; struct pipe_vertex_element *velems = mgr->fallback_ve ? mgr->fallback_velems : mgr->ve->ve; unsigned start_offset[PIPE_MAX_ATTRIBS]; unsigned end_offset[PIPE_MAX_ATTRIBS] = {0}; /* Determine how much data needs to be uploaded. */ for (i = 0; i < nr_velems; i++) { struct pipe_vertex_element *velem = &velems[i]; unsigned index = velem->vertex_buffer_index; struct pipe_vertex_buffer *vb = &mgr->b.vertex_buffer[index]; unsigned instance_div, first, size; /* Skip the buffers generated by translate. */ if (index == mgr->fallback_vbs[VB_VERTEX] || index == mgr->fallback_vbs[VB_INSTANCE] || index == mgr->fallback_vbs[VB_CONST]) { continue; } assert(vb->buffer); if (!vb->buffer->user_ptr) { continue; } instance_div = velem->instance_divisor; first = vb->buffer_offset + velem->src_offset; if (!vb->stride) { /* Constant attrib. */ size = mgr->ve->src_format_size[i]; } else if (instance_div) { /* Per-instance attrib. */ unsigned count = (num_instances + instance_div - 1) / instance_div; first += vb->stride * start_instance; size = vb->stride * (count - 1) + mgr->ve->src_format_size[i]; } else { /* Per-vertex attrib. */ first += vb->stride * start_vertex; size = vb->stride * (num_vertices - 1) + mgr->ve->src_format_size[i]; } /* Update offsets. */ if (!end_offset[index]) { start_offset[index] = first; end_offset[index] = first + size; } else { if (first < start_offset[index]) start_offset[index] = first; if (first + size > end_offset[index]) end_offset[index] = first + size; } } /* Upload buffers. */ for (i = 0; i < nr_vbufs; i++) { unsigned start, end = end_offset[i]; struct pipe_vertex_buffer *real_vb; uint8_t *ptr; if (!end) { continue; } start = start_offset[i]; assert(start < end); real_vb = &mgr->real_vertex_buffer[i]; ptr = mgr->b.vertex_buffer[i].buffer->user_ptr; u_upload_data(mgr->b.uploader, start, end - start, ptr + start, &real_vb->buffer_offset, &real_vb->buffer); real_vb->buffer_offset -= start; } } unsigned u_vbuf_draw_max_vertex_count(struct u_vbuf *mgrb) { struct u_vbuf_priv *mgr = (struct u_vbuf_priv*)mgrb; unsigned i, nr = mgr->ve->count; struct pipe_vertex_element *velems = mgr->fallback_ve ? mgr->fallback_velems : mgr->ve->ve; unsigned result = ~0; for (i = 0; i < nr; i++) { struct pipe_vertex_buffer *vb = &mgr->real_vertex_buffer[velems[i].vertex_buffer_index]; unsigned size, max_count, value; /* We're not interested in constant and per-instance attribs. */ if (!vb->buffer || !vb->stride || velems[i].instance_divisor) { continue; } size = vb->buffer->width0; /* Subtract buffer_offset. */ value = vb->buffer_offset; if (value >= size) { return 0; } size -= value; /* Subtract src_offset. */ value = velems[i].src_offset; if (value >= size) { return 0; } size -= value; /* Subtract format_size. */ value = mgr->ve->native_format_size[i]; if (value >= size) { return 0; } size -= value; /* Compute the max count. */ max_count = 1 + size / vb->stride; result = MIN2(result, max_count); } return result; } static boolean u_vbuf_need_minmax_index(struct u_vbuf_priv *mgr) { unsigned i, nr = mgr->ve->count; for (i = 0; i < nr; i++) { struct pipe_vertex_buffer *vb; unsigned index; /* Per-instance attribs don't need min/max_index. */ if (mgr->ve->ve[i].instance_divisor) { continue; } index = mgr->ve->ve[i].vertex_buffer_index; vb = &mgr->b.vertex_buffer[index]; /* Constant attribs don't need min/max_index. */ if (!vb->stride) { continue; } /* Per-vertex attribs need min/max_index. */ if (vb->buffer->user_ptr || mgr->ve->incompatible_layout_elem[i] || mgr->incompatible_vb[index]) { return TRUE; } } return FALSE; } static boolean u_vbuf_mapping_vertex_buffer_blocks(struct u_vbuf_priv *mgr) { unsigned i, nr = mgr->ve->count; for (i = 0; i < nr; i++) { struct pipe_vertex_buffer *vb; unsigned index; /* Per-instance attribs are not per-vertex data. */ if (mgr->ve->ve[i].instance_divisor) { continue; } index = mgr->ve->ve[i].vertex_buffer_index; vb = &mgr->b.vertex_buffer[index]; /* Constant attribs are not per-vertex data. */ if (!vb->stride) { continue; } /* Return true for the hw buffers which don't need to be translated. */ /* XXX we could use some kind of a is-busy query. */ if (!vb->buffer->user_ptr && !mgr->ve->incompatible_layout_elem[i] && !mgr->incompatible_vb[index]) { return TRUE; } } return FALSE; } static void u_vbuf_get_minmax_index(struct pipe_context *pipe, struct pipe_index_buffer *ib, const struct pipe_draw_info *info, int *out_min_index, int *out_max_index) { struct pipe_transfer *transfer = NULL; const void *indices; unsigned i; unsigned restart_index = info->restart_index; if (ib->buffer->user_ptr) { indices = ib->buffer->user_ptr + ib->offset + info->start * ib->index_size; } else { indices = pipe_buffer_map_range(pipe, ib->buffer, ib->offset + info->start * ib->index_size, info->count * ib->index_size, PIPE_TRANSFER_READ, &transfer); } switch (ib->index_size) { case 4: { const unsigned *ui_indices = (const unsigned*)indices; unsigned max_ui = 0; unsigned min_ui = ~0U; if (info->primitive_restart) { for (i = 0; i < info->count; i++) { if (ui_indices[i] != restart_index) { if (ui_indices[i] > max_ui) max_ui = ui_indices[i]; if (ui_indices[i] < min_ui) min_ui = ui_indices[i]; } } } else { for (i = 0; i < info->count; i++) { if (ui_indices[i] > max_ui) max_ui = ui_indices[i]; if (ui_indices[i] < min_ui) min_ui = ui_indices[i]; } } *out_min_index = min_ui; *out_max_index = max_ui; break; } case 2: { const unsigned short *us_indices = (const unsigned short*)indices; unsigned max_us = 0; unsigned min_us = ~0U; if (info->primitive_restart) { for (i = 0; i < info->count; i++) { if (us_indices[i] != restart_index) { if (us_indices[i] > max_us) max_us = us_indices[i]; if (us_indices[i] < min_us) min_us = us_indices[i]; } } } else { for (i = 0; i < info->count; i++) { if (us_indices[i] > max_us) max_us = us_indices[i]; if (us_indices[i] < min_us) min_us = us_indices[i]; } } *out_min_index = min_us; *out_max_index = max_us; break; } case 1: { const unsigned char *ub_indices = (const unsigned char*)indices; unsigned max_ub = 0; unsigned min_ub = ~0U; if (info->primitive_restart) { for (i = 0; i < info->count; i++) { if (ub_indices[i] != restart_index) { if (ub_indices[i] > max_ub) max_ub = ub_indices[i]; if (ub_indices[i] < min_ub) min_ub = ub_indices[i]; } } } else { for (i = 0; i < info->count; i++) { if (ub_indices[i] > max_ub) max_ub = ub_indices[i]; if (ub_indices[i] < min_ub) min_ub = ub_indices[i]; } } *out_min_index = min_ub; *out_max_index = max_ub; break; } default: assert(0); *out_min_index = 0; *out_max_index = 0; } if (transfer) { pipe_buffer_unmap(pipe, transfer); } } static void u_vbuf_draw_vbo(struct pipe_context *pipe, const struct pipe_draw_info *info) { struct u_vbuf_priv *mgr = (struct u_vbuf_priv*)pipe->draw; int start_vertex, min_index; unsigned num_vertices; bool unroll_indices = false; /* Normal draw. No fallback and no user buffers. */ if (!mgr->incompatible_vb_layout && !mgr->ve->incompatible_layout && !mgr->any_user_vbs) { /* Set vertex buffers if needed. */ if (mgr->vertex_buffers_dirty) { mgr->driver_set_vertex_buffers(pipe, mgr->nr_real_vertex_buffers, mgr->real_vertex_buffer); mgr->vertex_buffers_dirty = FALSE; } mgr->driver_draw_vbo(pipe, info); return; } if (info->indexed) { int max_index; bool index_bounds_valid = false; if (info->max_index != ~0) { min_index = info->min_index; max_index = info->max_index; index_bounds_valid = true; } else if (u_vbuf_need_minmax_index(mgr)) { u_vbuf_get_minmax_index(mgr->pipe, &mgr->index_buffer, info, &min_index, &max_index); index_bounds_valid = true; } /* If the index bounds are valid, it means some upload or translation * of per-vertex attribs will be performed. */ if (index_bounds_valid) { assert(min_index <= max_index); start_vertex = min_index + info->index_bias; num_vertices = max_index + 1 - min_index; /* Primitive restart doesn't work when unrolling indices. * We would have to break this drawing operation into several ones. */ /* Use some heuristic to see if unrolling indices improves * performance. */ if (!info->primitive_restart && num_vertices > info->count*2 && num_vertices-info->count > 32 && !u_vbuf_mapping_vertex_buffer_blocks(mgr)) { /*printf("num_vertices=%i count=%i\n", num_vertices, info->count);*/ unroll_indices = true; } } else { /* Nothing to do for per-vertex attribs. */ start_vertex = 0; num_vertices = 0; min_index = 0; } } else { start_vertex = info->start; num_vertices = info->count; min_index = 0; } /* Translate vertices with non-native layouts or formats. */ if (unroll_indices || mgr->incompatible_vb_layout || mgr->ve->incompatible_layout) { /* XXX check the return value */ u_vbuf_translate_begin(mgr, start_vertex, num_vertices, info->start_instance, info->instance_count, info->start, info->count, min_index, unroll_indices); } /* Upload user buffers. */ if (mgr->any_user_vbs) { u_vbuf_upload_buffers(mgr, start_vertex, num_vertices, info->start_instance, info->instance_count); } /* if (unroll_indices) { printf("unrolling indices: start_vertex = %i, num_vertices = %i\n", start_vertex, num_vertices); util_dump_draw_info(stdout, info); printf("\n"); } unsigned i; for (i = 0; i < mgr->b.nr_vertex_buffers; i++) { printf("input %i: ", i); util_dump_vertex_buffer(stdout, mgr->b.vertex_buffer+i); printf("\n"); } for (i = 0; i < mgr->nr_real_vertex_buffers; i++) { printf("real %i: ", i); util_dump_vertex_buffer(stdout, mgr->real_vertex_buffer+i); printf("\n"); } */ mgr->driver_set_vertex_buffers(mgr->pipe, mgr->nr_real_vertex_buffers, mgr->real_vertex_buffer); if (unlikely(unroll_indices)) { struct pipe_draw_info new_info = *info; new_info.indexed = FALSE; new_info.index_bias = 0; new_info.min_index = 0; new_info.max_index = info->count - 1; new_info.start = 0; mgr->driver_draw_vbo(pipe, &new_info); } else { mgr->driver_draw_vbo(pipe, info); } if (mgr->fallback_ve) { u_vbuf_translate_end(mgr); } mgr->vertex_buffers_dirty = TRUE; } static void u_vbuf_install(struct u_vbuf_priv *mgr) { struct pipe_context *pipe = mgr->pipe; assert(!pipe->draw); pipe->draw = mgr; mgr->driver_set_index_buffer = pipe->set_index_buffer; mgr->driver_set_vertex_buffers = pipe->set_vertex_buffers; mgr->driver_create_vertex_elements_state = pipe->create_vertex_elements_state; mgr->driver_bind_vertex_elements_state = pipe->bind_vertex_elements_state; mgr->driver_delete_vertex_elements_state = pipe->delete_vertex_elements_state; mgr->driver_draw_vbo = pipe->draw_vbo; pipe->set_index_buffer = u_vbuf_set_index_buffer; pipe->set_vertex_buffers = u_vbuf_set_vertex_buffers; pipe->create_vertex_elements_state = u_vbuf_create_vertex_elements; pipe->bind_vertex_elements_state = u_vbuf_bind_vertex_elements; pipe->delete_vertex_elements_state = u_vbuf_delete_vertex_elements; pipe->draw_vbo = u_vbuf_draw_vbo; }