| /************************************************************************** |
| * |
| * Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas. |
| * 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 TUNGSTEN GRAPHICS 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 manager using the old texture memory manager. |
| * |
| * \author Jose Fonseca <jrfonseca@tungstengraphics.com> |
| */ |
| |
| |
| #include "pipe/p_defines.h" |
| #include "util/u_debug.h" |
| #include "os/os_thread.h" |
| #include "util/u_memory.h" |
| #include "util/u_double_list.h" |
| #include "util/u_mm.h" |
| #include "pb_buffer.h" |
| #include "pb_bufmgr.h" |
| |
| |
| /** |
| * Convenience macro (type safe). |
| */ |
| #define SUPER(__derived) (&(__derived)->base) |
| |
| |
| struct mm_pb_manager |
| { |
| struct pb_manager base; |
| |
| pipe_mutex mutex; |
| |
| pb_size size; |
| struct mem_block *heap; |
| |
| pb_size align2; |
| |
| struct pb_buffer *buffer; |
| void *map; |
| }; |
| |
| |
| static INLINE struct mm_pb_manager * |
| mm_pb_manager(struct pb_manager *mgr) |
| { |
| assert(mgr); |
| return (struct mm_pb_manager *)mgr; |
| } |
| |
| |
| struct mm_buffer |
| { |
| struct pb_buffer base; |
| |
| struct mm_pb_manager *mgr; |
| |
| struct mem_block *block; |
| }; |
| |
| |
| static INLINE struct mm_buffer * |
| mm_buffer(struct pb_buffer *buf) |
| { |
| assert(buf); |
| return (struct mm_buffer *)buf; |
| } |
| |
| |
| static void |
| mm_buffer_destroy(struct pb_buffer *buf) |
| { |
| struct mm_buffer *mm_buf = mm_buffer(buf); |
| struct mm_pb_manager *mm = mm_buf->mgr; |
| |
| assert(!pipe_is_referenced(&mm_buf->base.reference)); |
| |
| pipe_mutex_lock(mm->mutex); |
| u_mmFreeMem(mm_buf->block); |
| FREE(mm_buf); |
| pipe_mutex_unlock(mm->mutex); |
| } |
| |
| |
| static void * |
| mm_buffer_map(struct pb_buffer *buf, |
| unsigned flags, |
| void *flush_ctx) |
| { |
| struct mm_buffer *mm_buf = mm_buffer(buf); |
| struct mm_pb_manager *mm = mm_buf->mgr; |
| |
| /* XXX: it will be necessary to remap here to propagate flush_ctx */ |
| |
| return (unsigned char *) mm->map + mm_buf->block->ofs; |
| } |
| |
| |
| static void |
| mm_buffer_unmap(struct pb_buffer *buf) |
| { |
| /* No-op */ |
| } |
| |
| |
| static enum pipe_error |
| mm_buffer_validate(struct pb_buffer *buf, |
| struct pb_validate *vl, |
| unsigned flags) |
| { |
| struct mm_buffer *mm_buf = mm_buffer(buf); |
| struct mm_pb_manager *mm = mm_buf->mgr; |
| return pb_validate(mm->buffer, vl, flags); |
| } |
| |
| |
| static void |
| mm_buffer_fence(struct pb_buffer *buf, |
| struct pipe_fence_handle *fence) |
| { |
| struct mm_buffer *mm_buf = mm_buffer(buf); |
| struct mm_pb_manager *mm = mm_buf->mgr; |
| pb_fence(mm->buffer, fence); |
| } |
| |
| |
| static void |
| mm_buffer_get_base_buffer(struct pb_buffer *buf, |
| struct pb_buffer **base_buf, |
| pb_size *offset) |
| { |
| struct mm_buffer *mm_buf = mm_buffer(buf); |
| struct mm_pb_manager *mm = mm_buf->mgr; |
| pb_get_base_buffer(mm->buffer, base_buf, offset); |
| *offset += mm_buf->block->ofs; |
| } |
| |
| |
| static const struct pb_vtbl |
| mm_buffer_vtbl = { |
| mm_buffer_destroy, |
| mm_buffer_map, |
| mm_buffer_unmap, |
| mm_buffer_validate, |
| mm_buffer_fence, |
| mm_buffer_get_base_buffer |
| }; |
| |
| |
| static struct pb_buffer * |
| mm_bufmgr_create_buffer(struct pb_manager *mgr, |
| pb_size size, |
| const struct pb_desc *desc) |
| { |
| struct mm_pb_manager *mm = mm_pb_manager(mgr); |
| struct mm_buffer *mm_buf; |
| |
| /* We don't handle alignments larger then the one initially setup */ |
| assert(pb_check_alignment(desc->alignment, (pb_size)1 << mm->align2)); |
| if(!pb_check_alignment(desc->alignment, (pb_size)1 << mm->align2)) |
| return NULL; |
| |
| pipe_mutex_lock(mm->mutex); |
| |
| mm_buf = CALLOC_STRUCT(mm_buffer); |
| if (!mm_buf) { |
| pipe_mutex_unlock(mm->mutex); |
| return NULL; |
| } |
| |
| pipe_reference_init(&mm_buf->base.reference, 1); |
| mm_buf->base.alignment = desc->alignment; |
| mm_buf->base.usage = desc->usage; |
| mm_buf->base.size = size; |
| |
| mm_buf->base.vtbl = &mm_buffer_vtbl; |
| |
| mm_buf->mgr = mm; |
| |
| mm_buf->block = u_mmAllocMem(mm->heap, (int)size, (int)mm->align2, 0); |
| if(!mm_buf->block) { |
| #if 0 |
| debug_printf("warning: heap full\n"); |
| mmDumpMemInfo(mm->heap); |
| #endif |
| FREE(mm_buf); |
| pipe_mutex_unlock(mm->mutex); |
| return NULL; |
| } |
| |
| /* Some sanity checks */ |
| assert(0 <= (pb_size)mm_buf->block->ofs && (pb_size)mm_buf->block->ofs < mm->size); |
| assert(size <= (pb_size)mm_buf->block->size && (pb_size)mm_buf->block->ofs + (pb_size)mm_buf->block->size <= mm->size); |
| |
| pipe_mutex_unlock(mm->mutex); |
| return SUPER(mm_buf); |
| } |
| |
| |
| static void |
| mm_bufmgr_flush(struct pb_manager *mgr) |
| { |
| /* No-op */ |
| } |
| |
| |
| static void |
| mm_bufmgr_destroy(struct pb_manager *mgr) |
| { |
| struct mm_pb_manager *mm = mm_pb_manager(mgr); |
| |
| pipe_mutex_lock(mm->mutex); |
| |
| u_mmDestroy(mm->heap); |
| |
| pb_unmap(mm->buffer); |
| pb_reference(&mm->buffer, NULL); |
| |
| pipe_mutex_unlock(mm->mutex); |
| |
| FREE(mgr); |
| } |
| |
| |
| struct pb_manager * |
| mm_bufmgr_create_from_buffer(struct pb_buffer *buffer, |
| pb_size size, pb_size align2) |
| { |
| struct mm_pb_manager *mm; |
| |
| if(!buffer) |
| return NULL; |
| |
| mm = CALLOC_STRUCT(mm_pb_manager); |
| if (!mm) |
| return NULL; |
| |
| mm->base.destroy = mm_bufmgr_destroy; |
| mm->base.create_buffer = mm_bufmgr_create_buffer; |
| mm->base.flush = mm_bufmgr_flush; |
| |
| mm->size = size; |
| mm->align2 = align2; /* 64-byte alignment */ |
| |
| pipe_mutex_init(mm->mutex); |
| |
| mm->buffer = buffer; |
| |
| mm->map = pb_map(mm->buffer, |
| PB_USAGE_CPU_READ | |
| PB_USAGE_CPU_WRITE, NULL); |
| if(!mm->map) |
| goto failure; |
| |
| mm->heap = u_mmInit(0, (int)size); |
| if (!mm->heap) |
| goto failure; |
| |
| return SUPER(mm); |
| |
| failure: |
| if(mm->heap) |
| u_mmDestroy(mm->heap); |
| if(mm->map) |
| pb_unmap(mm->buffer); |
| if(mm) |
| FREE(mm); |
| return NULL; |
| } |
| |
| |
| struct pb_manager * |
| mm_bufmgr_create(struct pb_manager *provider, |
| pb_size size, pb_size align2) |
| { |
| struct pb_buffer *buffer; |
| struct pb_manager *mgr; |
| struct pb_desc desc; |
| |
| if(!provider) |
| return NULL; |
| |
| memset(&desc, 0, sizeof(desc)); |
| desc.alignment = 1 << align2; |
| |
| buffer = provider->create_buffer(provider, size, &desc); |
| if (!buffer) |
| return NULL; |
| |
| mgr = mm_bufmgr_create_from_buffer(buffer, size, align2); |
| if (!mgr) { |
| pb_reference(&buffer, NULL); |
| return NULL; |
| } |
| |
| return mgr; |
| } |