/************************************************************************** * * 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" 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]; }; enum { VB_VERTEX = 0, VB_INSTANCE = 1, VB_CONST = 2, VB_NUM = 3 }; struct u_vbuf_priv { struct u_vbuf b; struct pipe_context *pipe; struct translate_cache *translate_cache; /* Vertex element state bound by the state tracker. */ void *saved_ve; /* 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]; /* When binding the fallback vertex element state, we don't want to * change saved_ve and ve. This is set to TRUE in such cases. */ boolean ve_binding_lock; /* 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]; }; static void u_vbuf_init_format_caps(struct u_vbuf_priv *mgr) { struct pipe_screen *screen = mgr->pipe->screen; mgr->b.caps.format_fixed32 = screen->is_format_supported(screen, PIPE_FORMAT_R32_FIXED, PIPE_BUFFER, 0, PIPE_BIND_VERTEX_BUFFER); mgr->b.caps.format_float16 = screen->is_format_supported(screen, PIPE_FORMAT_R16_FLOAT, PIPE_BUFFER, 0, PIPE_BIND_VERTEX_BUFFER); mgr->b.caps.format_float64 = screen->is_format_supported(screen, PIPE_FORMAT_R64_FLOAT, PIPE_BUFFER, 0, PIPE_BIND_VERTEX_BUFFER); mgr->b.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); mgr->b.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); } struct u_vbuf * u_vbuf_create(struct pipe_context *pipe, unsigned upload_buffer_size, unsigned upload_buffer_alignment, unsigned upload_buffer_bind, enum u_fetch_alignment fetch_alignment) { struct u_vbuf_priv *mgr = CALLOC_STRUCT(u_vbuf_priv); mgr->pipe = pipe; 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); mgr->b.caps.fetch_dword_unaligned = fetch_alignment == U_VERTEX_FETCH_BYTE_ALIGNED; u_vbuf_init_format_caps(mgr); return &mgr->b; } void u_vbuf_destroy(struct u_vbuf *mgrb) { struct u_vbuf_priv *mgr = (struct u_vbuf_priv*)mgrb; unsigned i; 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->b.nr_real_vertex_buffers; i++) { pipe_resource_reference(&mgr->b.real_vertex_buffer[i].buffer, NULL); } translate_cache_destroy(mgr->translate_cache); u_upload_destroy(mgr->b.uploader); 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, unsigned count) { 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; uint8_t *map; if (u_vbuf_resource(vb->buffer)->user_ptr) { map = u_vbuf_resource(vb->buffer)->user_ptr + offset; } else { unsigned size = vb->stride ? count * 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]); } tr->set_buffer(tr, i, map, vb->stride, ~0); } } /* Create and map the output buffer. */ u_upload_alloc(mgr->b.uploader, key->output_stride * start, key->output_stride * count, &out_offset, &out_buffer, (void**)&out_map); out_offset -= key->output_stride * start; /* Translate. */ tr->run(tr, 0, count, 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->b.real_vertex_buffer[out_vb].buffer_offset = out_offset; mgr->b.real_vertex_buffer[out_vb].stride = key->output_stride; /* Move the buffer reference. */ pipe_resource_reference( &mgr->b.real_vertex_buffer[out_vb].buffer, NULL); mgr->b.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->b.nr_real_vertex_buffers) { mgr->b.nr_real_vertex_buffers = i; } break; } } if (i == PIPE_MAX_ATTRIBS) { /* fail, reset the number to its original value */ mgr->b.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) { 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 count[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->ve->incompatible_layout_elem[i] && !mgr->incompatible_vb[vb_index]) { continue; } if (!mgr->b.vertex_buffer[vb_index].stride) { mask[VB_CONST] |= 1 << vb_index; } else if (mgr->ve->ve[i].instance_divisor) { mask[VB_INSTANCE] |= 1 << vb_index; } else { 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; if (!mgr->ve->incompatible_layout_elem[i] && !mgr->incompatible_vb[vb_index]) { continue; } /* Set type to what we will translate. * Whether vertex, instance, or constant attribs. */ bit = 1 << vb_index; 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], count[type]); /* Fixup the stride for constant attribs. */ if (type == VB_CONST) { mgr->b.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 = mgr->pipe->create_vertex_elements_state(mgr->pipe, mgr->ve->count, mgr->fallback_velems); /* Preserve saved_ve. */ mgr->ve_binding_lock = TRUE; mgr->pipe->bind_vertex_elements_state(mgr->pipe, mgr->fallback_ve); mgr->ve_binding_lock = FALSE; return TRUE; } static void u_vbuf_translate_end(struct u_vbuf_priv *mgr) { unsigned i; if (mgr->fallback_ve == NULL) { return; } /* Restore vertex elements. */ /* Note that saved_ve will be overwritten in bind_vertex_elements_state. */ mgr->pipe->bind_vertex_elements_state(mgr->pipe, mgr->saved_ve); mgr->pipe->delete_vertex_elements_state(mgr->pipe, mgr->fallback_ve); 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->b.real_vertex_buffer[vb].buffer, NULL); mgr->fallback_vbs[i] = ~0; } } mgr->b.nr_real_vertex_buffers = mgr->b.nr_vertex_buffers; } #define FORMAT_REPLACE(what, withwhat) \ case PIPE_FORMAT_##what: format = PIPE_FORMAT_##withwhat; break struct u_vbuf_elements * u_vbuf_create_vertex_elements(struct u_vbuf *mgrb, unsigned count, const struct pipe_vertex_element *attribs, struct pipe_vertex_element *native_attribs) { struct u_vbuf_priv *mgr = (struct u_vbuf_priv*)mgrb; unsigned i; struct u_vbuf_elements *ve = CALLOC_STRUCT(u_vbuf_elements); ve->count = count; if (!count) { return ve; } 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->b.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->b.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->b.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->b.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->b.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->b.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->b.caps.fetch_dword_unaligned) { for (i = 0; i < count; i++) { ve->native_format_size[i] = align(ve->native_format_size[i], 4); } } return ve; } void u_vbuf_bind_vertex_elements(struct u_vbuf *mgrb, void *cso, struct u_vbuf_elements *ve) { struct u_vbuf_priv *mgr = (struct u_vbuf_priv*)mgrb; if (!cso) { return; } if (!mgr->ve_binding_lock) { mgr->saved_ve = cso; mgr->ve = ve; } } void u_vbuf_destroy_vertex_elements(struct u_vbuf *mgr, struct u_vbuf_elements *ve) { FREE(ve); } void u_vbuf_set_vertex_buffers(struct u_vbuf *mgrb, unsigned count, const struct pipe_vertex_buffer *bufs) { struct u_vbuf_priv *mgr = (struct u_vbuf_priv*)mgrb; unsigned i; mgr->any_user_vbs = FALSE; mgr->incompatible_vb_layout = FALSE; memset(mgr->incompatible_vb, 0, sizeof(mgr->incompatible_vb)); if (!mgr->b.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->b.real_vertex_buffer[i].buffer_offset = mgr->b.vertex_buffer[i].buffer_offset = vb->buffer_offset; mgr->b.real_vertex_buffer[i].stride = mgr->b.vertex_buffer[i].stride = vb->stride; if (!vb->buffer || mgr->incompatible_vb[i]) { pipe_resource_reference(&mgr->b.real_vertex_buffer[i].buffer, NULL); continue; } if (u_vbuf_resource(vb->buffer)->user_ptr) { pipe_resource_reference(&mgr->b.real_vertex_buffer[i].buffer, NULL); mgr->any_user_vbs = TRUE; continue; } pipe_resource_reference(&mgr->b.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->b.nr_real_vertex_buffers; i++) { pipe_resource_reference(&mgr->b.real_vertex_buffer[i].buffer, NULL); } mgr->b.nr_vertex_buffers = count; mgr->b.nr_real_vertex_buffers = count; } void u_vbuf_set_index_buffer(struct u_vbuf *mgr, const struct pipe_index_buffer *ib) { 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); } } 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 (!u_vbuf_resource(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->b.real_vertex_buffer[i]; ptr = u_vbuf_resource(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->b.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 (u_vbuf_resource(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 (u_vbuf_resource(ib->buffer)->user_ptr) { indices = u_vbuf_resource(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); } } enum u_vbuf_return_flags u_vbuf_draw_begin(struct u_vbuf *mgrb, const struct pipe_draw_info *info) { struct u_vbuf_priv *mgr = (struct u_vbuf_priv*)mgrb; int start, count; if (!mgr->incompatible_vb_layout && !mgr->ve->incompatible_layout && !mgr->any_user_vbs) { return 0; } if (info->indexed) { int min_index, max_index; if (info->max_index != ~0) { min_index = info->min_index + info->index_bias; max_index = info->max_index + info->index_bias; } else if (u_vbuf_need_minmax_index(mgr)) { u_vbuf_get_minmax_index(mgr->pipe, &mgr->b.index_buffer, info, &min_index, &max_index); min_index += info->index_bias; max_index += info->index_bias; } else { min_index = 0; max_index = 0; } assert(min_index <= max_index); start = min_index; count = max_index + 1 - min_index; } else { start = info->start; count = info->count; } assert(count > 0); /* Translate vertices with non-native layouts or formats. */ if (mgr->incompatible_vb_layout || mgr->ve->incompatible_layout) { /* XXX check the return value */ u_vbuf_translate_begin(mgr, start, count, info->start_instance, info->instance_count); } /* Upload user buffers. */ if (mgr->any_user_vbs) { u_vbuf_upload_buffers(mgr, start, count, info->start_instance, info->instance_count); } /*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->b.nr_real_vertex_buffers; i++) { printf("real %i: ", i); util_dump_vertex_buffer(stdout, mgr->b.real_vertex_buffer+i); printf("\n"); }*/ return U_VBUF_BUFFERS_UPDATED; } void u_vbuf_draw_end(struct u_vbuf *mgrb) { struct u_vbuf_priv *mgr = (struct u_vbuf_priv*)mgrb; if (mgr->fallback_ve) { u_vbuf_translate_end(mgr); } }