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| /************************************************************************** |
| * |
| * Copyright 2008 VMware, Inc. |
| * 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 VMWARE 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. |
| * |
| **************************************************************************/ |
| |
| /** |
| * @file |
| * Buffer validation. |
| * |
| * @author Jose Fonseca <jfonseca@vmware.com> |
| */ |
| |
| |
| #include "pipe/p_compiler.h" |
| #include "pipe/p_defines.h" |
| #include "util/u_memory.h" |
| #include "util/u_debug.h" |
| |
| #include "pb_buffer.h" |
| #include "pb_validate.h" |
| |
| |
| #define PB_VALIDATE_INITIAL_SIZE 1 /* 512 */ |
| |
| |
| struct pb_validate_entry |
| { |
| struct pb_buffer *buf; |
| unsigned flags; |
| }; |
| |
| |
| struct pb_validate |
| { |
| struct pb_validate_entry *entries; |
| unsigned used; |
| unsigned size; |
| }; |
| |
| |
| enum pipe_error |
| pb_validate_add_buffer(struct pb_validate *vl, |
| struct pb_buffer *buf, |
| unsigned flags) |
| { |
| assert(buf); |
| if(!buf) |
| return PIPE_ERROR; |
| |
| assert(flags & PB_USAGE_GPU_READ_WRITE); |
| assert(!(flags & ~PB_USAGE_GPU_READ_WRITE)); |
| flags &= PB_USAGE_GPU_READ_WRITE; |
| |
| /* We only need to store one reference for each buffer, so avoid storing |
| * consecutive references for the same buffer. It might not be the most |
| * common pattern, but it is easy to implement. |
| */ |
| if(vl->used && vl->entries[vl->used - 1].buf == buf) { |
| vl->entries[vl->used - 1].flags |= flags; |
| return PIPE_OK; |
| } |
| |
| /* Grow the table */ |
| if(vl->used == vl->size) { |
| unsigned new_size; |
| struct pb_validate_entry *new_entries; |
| |
| new_size = vl->size * 2; |
| if(!new_size) |
| return PIPE_ERROR_OUT_OF_MEMORY; |
| |
| new_entries = (struct pb_validate_entry *)REALLOC(vl->entries, |
| vl->size*sizeof(struct pb_validate_entry), |
| new_size*sizeof(struct pb_validate_entry)); |
| if(!new_entries) |
| return PIPE_ERROR_OUT_OF_MEMORY; |
| |
| memset(new_entries + vl->size, 0, (new_size - vl->size)*sizeof(struct pb_validate_entry)); |
| |
| vl->size = new_size; |
| vl->entries = new_entries; |
| } |
| |
| assert(!vl->entries[vl->used].buf); |
| pb_reference(&vl->entries[vl->used].buf, buf); |
| vl->entries[vl->used].flags = flags; |
| ++vl->used; |
| |
| return PIPE_OK; |
| } |
| |
| |
| enum pipe_error |
| pb_validate_foreach(struct pb_validate *vl, |
| enum pipe_error (*callback)(struct pb_buffer *buf, void *data), |
| void *data) |
| { |
| unsigned i; |
| for(i = 0; i < vl->used; ++i) { |
| enum pipe_error ret; |
| ret = callback(vl->entries[i].buf, data); |
| if(ret != PIPE_OK) |
| return ret; |
| } |
| return PIPE_OK; |
| } |
| |
| |
| enum pipe_error |
| pb_validate_validate(struct pb_validate *vl) |
| { |
| unsigned i; |
| |
| for(i = 0; i < vl->used; ++i) { |
| enum pipe_error ret; |
| ret = pb_validate(vl->entries[i].buf, vl, vl->entries[i].flags); |
| if(ret != PIPE_OK) { |
| while(i--) |
| pb_validate(vl->entries[i].buf, NULL, 0); |
| return ret; |
| } |
| } |
| |
| return PIPE_OK; |
| } |
| |
| |
| void |
| pb_validate_fence(struct pb_validate *vl, |
| struct pipe_fence_handle *fence) |
| { |
| unsigned i; |
| for(i = 0; i < vl->used; ++i) { |
| pb_fence(vl->entries[i].buf, fence); |
| pb_reference(&vl->entries[i].buf, NULL); |
| } |
| vl->used = 0; |
| } |
| |
| |
| void |
| pb_validate_destroy(struct pb_validate *vl) |
| { |
| unsigned i; |
| for(i = 0; i < vl->used; ++i) |
| pb_reference(&vl->entries[i].buf, NULL); |
| FREE(vl->entries); |
| FREE(vl); |
| } |
| |
| |
| struct pb_validate * |
| pb_validate_create() |
| { |
| struct pb_validate *vl; |
| |
| vl = CALLOC_STRUCT(pb_validate); |
| if(!vl) |
| return NULL; |
| |
| vl->size = PB_VALIDATE_INITIAL_SIZE; |
| vl->entries = (struct pb_validate_entry *)CALLOC(vl->size, sizeof(struct pb_validate_entry)); |
| if(!vl->entries) { |
| FREE(vl); |
| return NULL; |
| } |
| |
| return vl; |
| } |
| |