diff options
Diffstat (limited to 'mesalib/src/gallium/auxiliary/util/u_upload_mgr.c')
| -rw-r--r-- | mesalib/src/gallium/auxiliary/util/u_upload_mgr.c | 520 |
1 files changed, 269 insertions, 251 deletions
diff --git a/mesalib/src/gallium/auxiliary/util/u_upload_mgr.c b/mesalib/src/gallium/auxiliary/util/u_upload_mgr.c index e2e7829fb..e50db6d67 100644 --- a/mesalib/src/gallium/auxiliary/util/u_upload_mgr.c +++ b/mesalib/src/gallium/auxiliary/util/u_upload_mgr.c @@ -1,251 +1,269 @@ -/**************************************************************************
- *
- * Copyright 2009 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.
- *
- **************************************************************************/
-
-/* Helper utility for uploading user buffers & other data, and
- * coalescing small buffers into larger ones.
- */
-
-#include "pipe/p_defines.h"
-#include "util/u_inlines.h"
-#include "pipe/p_context.h"
-#include "util/u_memory.h"
-#include "util/u_math.h"
-
-#include "u_upload_mgr.h"
-
-
-struct u_upload_mgr {
- struct pipe_context *pipe;
-
- unsigned default_size; /* Minimum size of the upload buffer, in bytes. */
- unsigned alignment; /* Alignment of each sub-allocation. */
- unsigned bind; /* Bitmask of PIPE_BIND_* flags. */
-
- struct pipe_resource *buffer; /* Upload buffer. */
- struct pipe_transfer *transfer; /* Transfer object for the upload buffer. */
- uint8_t *map; /* Pointer to the mapped upload buffer. */
- unsigned size; /* Actual size of the upload buffer. */
- unsigned offset; /* Aligned offset to the upload buffer, pointing
- * at the first unused byte. */
-};
-
-
-struct u_upload_mgr *u_upload_create( struct pipe_context *pipe,
- unsigned default_size,
- unsigned alignment,
- unsigned bind )
-{
- struct u_upload_mgr *upload = CALLOC_STRUCT( u_upload_mgr );
- if (!upload)
- return NULL;
-
- upload->pipe = pipe;
- upload->default_size = default_size;
- upload->alignment = alignment;
- upload->bind = bind;
- upload->buffer = NULL;
-
- return upload;
-}
-
-/* Release old buffer.
- *
- * This must usually be called prior to firing the command stream
- * which references the upload buffer, as many memory managers will
- * cause subsequent maps of a fired buffer to wait.
- *
- * Can improve this with a change to pipe_buffer_write to use the
- * DONT_WAIT bit, but for now, it's easiest just to grab a new buffer.
- */
-void u_upload_flush( struct u_upload_mgr *upload )
-{
- /* Unmap and unreference the upload buffer. */
- if (upload->transfer) {
- if (upload->offset) {
- pipe_buffer_flush_mapped_range(upload->pipe, upload->transfer,
- 0, upload->offset);
- }
- pipe_transfer_unmap(upload->pipe, upload->transfer);
- pipe_transfer_destroy(upload->pipe, upload->transfer);
- upload->transfer = NULL;
- }
- pipe_resource_reference( &upload->buffer, NULL );
- upload->size = 0;
-}
-
-
-void u_upload_destroy( struct u_upload_mgr *upload )
-{
- u_upload_flush( upload );
- FREE( upload );
-}
-
-
-static enum pipe_error
-u_upload_alloc_buffer( struct u_upload_mgr *upload,
- unsigned min_size )
-{
- unsigned size;
-
- /* Release the old buffer, if present:
- */
- u_upload_flush( upload );
-
- /* Allocate a new one:
- */
- size = align(MAX2(upload->default_size, min_size), 4096);
-
- upload->buffer = pipe_buffer_create( upload->pipe->screen,
- upload->bind,
- PIPE_USAGE_STREAM,
- size );
- if (upload->buffer == NULL)
- goto fail;
-
- /* Map the new buffer. */
- upload->map = pipe_buffer_map_range(upload->pipe, upload->buffer,
- 0, size,
- PIPE_TRANSFER_WRITE |
- PIPE_TRANSFER_FLUSH_EXPLICIT,
- &upload->transfer);
-
- upload->size = size;
-
- upload->offset = 0;
- return 0;
-
-fail:
- if (upload->buffer)
- pipe_resource_reference( &upload->buffer, NULL );
-
- return PIPE_ERROR_OUT_OF_MEMORY;
-}
-
-enum pipe_error u_upload_alloc( struct u_upload_mgr *upload,
- unsigned min_out_offset,
- unsigned size,
- unsigned *out_offset,
- struct pipe_resource **outbuf,
- boolean *flushed,
- void **ptr )
-{
- unsigned alloc_size = align( size, upload->alignment );
- unsigned alloc_offset = align(min_out_offset, upload->alignment);
- unsigned offset;
-
- /* Make sure we have enough space in the upload buffer
- * for the sub-allocation. */
- if (MAX2(upload->offset, alloc_offset) + alloc_size > upload->size) {
- enum pipe_error ret = u_upload_alloc_buffer(upload,
- alloc_offset + alloc_size);
- if (ret)
- return ret;
-
- *flushed = TRUE;
- } else {
- *flushed = FALSE;
- }
-
- offset = MAX2(upload->offset, alloc_offset);
-
- assert(offset < upload->buffer->width0);
- assert(offset + size <= upload->buffer->width0);
- assert(size);
-
- /* Emit the return values: */
- *ptr = upload->map + offset;
- pipe_resource_reference( outbuf, upload->buffer );
- *out_offset = offset;
-
- upload->offset = offset + alloc_size;
- return PIPE_OK;
-}
-
-enum pipe_error u_upload_data( struct u_upload_mgr *upload,
- unsigned min_out_offset,
- unsigned size,
- const void *data,
- unsigned *out_offset,
- struct pipe_resource **outbuf,
- boolean *flushed )
-{
- uint8_t *ptr;
- enum pipe_error ret = u_upload_alloc(upload, min_out_offset, size,
- out_offset, outbuf, flushed,
- (void**)&ptr);
- if (ret)
- return ret;
-
- memcpy(ptr, data, size);
- return PIPE_OK;
-}
-
-
-/* As above, but upload the full contents of a buffer. Useful for
- * uploading user buffers, avoids generating an explosion of GPU
- * buffers if you have an app that does lots of small vertex buffer
- * renders or DrawElements calls.
- */
-enum pipe_error u_upload_buffer( struct u_upload_mgr *upload,
- unsigned min_out_offset,
- unsigned offset,
- unsigned size,
- struct pipe_resource *inbuf,
- unsigned *out_offset,
- struct pipe_resource **outbuf,
- boolean *flushed )
-{
- enum pipe_error ret = PIPE_OK;
- struct pipe_transfer *transfer = NULL;
- const char *map = NULL;
-
- map = (const char *)pipe_buffer_map(upload->pipe,
- inbuf,
- PIPE_TRANSFER_READ,
- &transfer);
-
- if (map == NULL) {
- ret = PIPE_ERROR_OUT_OF_MEMORY;
- goto done;
- }
-
- if (0)
- debug_printf("upload ptr %p ofs %d sz %d\n", map, offset, size);
-
- ret = u_upload_data( upload,
- min_out_offset,
- size,
- map + offset,
- out_offset,
- outbuf, flushed );
-
-done:
- if (map)
- pipe_buffer_unmap( upload->pipe, transfer );
-
- return ret;
-}
+/************************************************************************** + * + * Copyright 2009 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. + * + **************************************************************************/ + +/* Helper utility for uploading user buffers & other data, and + * coalescing small buffers into larger ones. + */ + +#include "pipe/p_defines.h" +#include "util/u_inlines.h" +#include "pipe/p_context.h" +#include "util/u_memory.h" +#include "util/u_math.h" + +#include "u_upload_mgr.h" + + +struct u_upload_mgr { + struct pipe_context *pipe; + + unsigned default_size; /* Minimum size of the upload buffer, in bytes. */ + unsigned alignment; /* Alignment of each sub-allocation. */ + unsigned bind; /* Bitmask of PIPE_BIND_* flags. */ + + struct pipe_resource *buffer; /* Upload buffer. */ + struct pipe_transfer *transfer; /* Transfer object for the upload buffer. */ + uint8_t *map; /* Pointer to the mapped upload buffer. */ + unsigned size; /* Actual size of the upload buffer. */ + unsigned offset; /* Aligned offset to the upload buffer, pointing + * at the first unused byte. */ +}; + + +struct u_upload_mgr *u_upload_create( struct pipe_context *pipe, + unsigned default_size, + unsigned alignment, + unsigned bind ) +{ + struct u_upload_mgr *upload = CALLOC_STRUCT( u_upload_mgr ); + if (!upload) + return NULL; + + upload->pipe = pipe; + upload->default_size = default_size; + upload->alignment = alignment; + upload->bind = bind; + upload->buffer = NULL; + + return upload; +} + +void u_upload_unmap( struct u_upload_mgr *upload ) +{ + if (upload->transfer) { + struct pipe_box *box = &upload->transfer->box; + if (upload->offset > box->x) { + + pipe_buffer_flush_mapped_range(upload->pipe, upload->transfer, + box->x, upload->offset - box->x); + } + pipe_transfer_unmap(upload->pipe, upload->transfer); + pipe_transfer_destroy(upload->pipe, upload->transfer); + upload->transfer = NULL; + upload->map = NULL; + } +} + +/* Release old buffer. + * + * This must usually be called prior to firing the command stream + * which references the upload buffer, as many memory managers will + * cause subsequent maps of a fired buffer to wait. + * + * Can improve this with a change to pipe_buffer_write to use the + * DONT_WAIT bit, but for now, it's easiest just to grab a new buffer. + */ +void u_upload_flush( struct u_upload_mgr *upload ) +{ + /* Unmap and unreference the upload buffer. */ + u_upload_unmap(upload); + pipe_resource_reference( &upload->buffer, NULL ); + upload->size = 0; +} + + +void u_upload_destroy( struct u_upload_mgr *upload ) +{ + u_upload_flush( upload ); + FREE( upload ); +} + + +static enum pipe_error +u_upload_alloc_buffer( struct u_upload_mgr *upload, + unsigned min_size ) +{ + unsigned size; + + /* Release the old buffer, if present: + */ + u_upload_flush( upload ); + + /* Allocate a new one: + */ + size = align(MAX2(upload->default_size, min_size), 4096); + + upload->buffer = pipe_buffer_create( upload->pipe->screen, + upload->bind, + PIPE_USAGE_STREAM, + size ); + if (upload->buffer == NULL) + goto fail; + + /* Map the new buffer. */ + upload->map = pipe_buffer_map_range(upload->pipe, upload->buffer, + 0, size, + PIPE_TRANSFER_WRITE | + PIPE_TRANSFER_FLUSH_EXPLICIT, + &upload->transfer); + + upload->size = size; + + upload->offset = 0; + return 0; + +fail: + if (upload->buffer) + pipe_resource_reference( &upload->buffer, NULL ); + + return PIPE_ERROR_OUT_OF_MEMORY; +} + +enum pipe_error u_upload_alloc( struct u_upload_mgr *upload, + unsigned min_out_offset, + unsigned size, + unsigned *out_offset, + struct pipe_resource **outbuf, + boolean *flushed, + void **ptr ) +{ + unsigned alloc_size = align( size, upload->alignment ); + unsigned alloc_offset = align(min_out_offset, upload->alignment); + unsigned offset; + + /* Make sure we have enough space in the upload buffer + * for the sub-allocation. */ + if (MAX2(upload->offset, alloc_offset) + alloc_size > upload->size) { + enum pipe_error ret = u_upload_alloc_buffer(upload, + alloc_offset + alloc_size); + if (ret) + return ret; + + *flushed = TRUE; + } else { + *flushed = FALSE; + } + + offset = MAX2(upload->offset, alloc_offset); + + if (!upload->map) { + upload->map = pipe_buffer_map_range(upload->pipe, upload->buffer, + offset, upload->size - offset, + PIPE_TRANSFER_WRITE | + PIPE_TRANSFER_FLUSH_EXPLICIT | + PIPE_TRANSFER_UNSYNCHRONIZED, + &upload->transfer); + } + + assert(offset < upload->buffer->width0); + assert(offset + size <= upload->buffer->width0); + assert(size); + + /* Emit the return values: */ + *ptr = upload->map + offset; + pipe_resource_reference( outbuf, upload->buffer ); + *out_offset = offset; + + upload->offset = offset + alloc_size; + return PIPE_OK; +} + +enum pipe_error u_upload_data( struct u_upload_mgr *upload, + unsigned min_out_offset, + unsigned size, + const void *data, + unsigned *out_offset, + struct pipe_resource **outbuf, + boolean *flushed ) +{ + uint8_t *ptr; + enum pipe_error ret = u_upload_alloc(upload, min_out_offset, size, + out_offset, outbuf, flushed, + (void**)&ptr); + if (ret) + return ret; + + memcpy(ptr, data, size); + return PIPE_OK; +} + + +/* As above, but upload the full contents of a buffer. Useful for + * uploading user buffers, avoids generating an explosion of GPU + * buffers if you have an app that does lots of small vertex buffer + * renders or DrawElements calls. + */ +enum pipe_error u_upload_buffer( struct u_upload_mgr *upload, + unsigned min_out_offset, + unsigned offset, + unsigned size, + struct pipe_resource *inbuf, + unsigned *out_offset, + struct pipe_resource **outbuf, + boolean *flushed ) +{ + enum pipe_error ret = PIPE_OK; + struct pipe_transfer *transfer = NULL; + const char *map = NULL; + + map = (const char *)pipe_buffer_map_range(upload->pipe, + inbuf, + offset, size, + PIPE_TRANSFER_READ, + &transfer); + + if (map == NULL) { + ret = PIPE_ERROR_OUT_OF_MEMORY; + goto done; + } + + if (0) + debug_printf("upload ptr %p ofs %d sz %d\n", map, offset, size); + + ret = u_upload_data( upload, + min_out_offset, + size, + map, + out_offset, + outbuf, flushed ); + +done: + if (map) + pipe_buffer_unmap( upload->pipe, transfer ); + + return ret; +} |