From 06286110b4fc0ff80ae21bb3d8ff9909db1f5d47 Mon Sep 17 00:00:00 2001 From: Marek Olšák Date: Mon, 27 Dec 2010 22:32:31 +0100 Subject: u_upload_mgr: new features - Added a parameter to specify a minimum offset that should be returned. r300g needs this to better implement user buffer uploads. This weird requirement comes from the fact that the Radeon DRM doesn't support negative offsets. - Added a parameter to notify a driver that the upload flush occured. A driver may skip buffer validation if there was no flush, resulting in a better performance. - Added a new upload function that returns a pointer to the upload buffer directly, so that the buffer can be filled e.g. by the translate module. --- src/gallium/auxiliary/util/u_upload_mgr.c | 75 +++++++++++++++++++++---------- src/gallium/auxiliary/util/u_upload_mgr.h | 43 ++++++++++++++++-- 2 files changed, 92 insertions(+), 26 deletions(-) (limited to 'src/gallium/auxiliary/util') diff --git a/src/gallium/auxiliary/util/u_upload_mgr.c b/src/gallium/auxiliary/util/u_upload_mgr.c index 4d97bf0377f..80c9b635f0e 100644 --- a/src/gallium/auxiliary/util/u_upload_mgr.c +++ b/src/gallium/auxiliary/util/u_upload_mgr.c @@ -43,7 +43,7 @@ struct u_upload_mgr { unsigned default_size; unsigned alignment; - unsigned usage; + unsigned bind; /* The active buffer: */ @@ -58,7 +58,7 @@ struct u_upload_mgr { struct u_upload_mgr *u_upload_create( struct pipe_context *pipe, unsigned default_size, unsigned alignment, - unsigned usage ) + unsigned bind ) { struct u_upload_mgr *upload = CALLOC_STRUCT( u_upload_mgr ); if (!upload) @@ -67,7 +67,7 @@ struct u_upload_mgr *u_upload_create( struct pipe_context *pipe, upload->pipe = pipe; upload->default_size = default_size; upload->alignment = alignment; - upload->usage = usage; + upload->bind = bind; upload->buffer = NULL; return upload; @@ -115,7 +115,7 @@ u_upload_alloc_buffer( struct u_upload_mgr *upload, size = align(MAX2(upload->default_size, min_size), 4096); upload->buffer = pipe_buffer_create( upload->pipe->screen, - upload->usage, + upload->bind, size ); if (upload->buffer == NULL) goto fail; @@ -135,33 +135,61 @@ fail: return PIPE_ERROR_OUT_OF_MEMORY; } - -enum pipe_error u_upload_data( struct u_upload_mgr *upload, - unsigned size, - const void *data, - unsigned *out_offset, - struct pipe_resource **outbuf ) +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 ); - enum pipe_error ret = PIPE_OK; + unsigned alloc_offset = align(min_out_offset, upload->alignment); + unsigned offset; - if (upload->offset + alloc_size > upload->size) { - ret = u_upload_alloc_buffer( upload, alloc_size ); + 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; } - assert(upload->offset < upload->buffer->width0); - assert(upload->offset + size <= upload->buffer->width0); + offset = MAX2(upload->offset, alloc_offset); + + assert(offset < upload->buffer->width0); + assert(offset + size <= upload->buffer->width0); assert(size); - memcpy(upload->map + upload->offset, data, size); + *ptr = upload->map + offset; /* Emit the return values: */ pipe_resource_reference( outbuf, upload->buffer ); - *out_offset = upload->offset; - upload->offset += alloc_size; + *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; } @@ -172,11 +200,13 @@ enum pipe_error u_upload_data( struct u_upload_mgr *upload, * 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 ) + struct pipe_resource **outbuf, + boolean *flushed ) { enum pipe_error ret = PIPE_OK; struct pipe_transfer *transfer = NULL; @@ -195,13 +225,12 @@ enum pipe_error u_upload_buffer( struct u_upload_mgr *upload, if (0) debug_printf("upload ptr %p ofs %d sz %d\n", map, offset, size); - ret = u_upload_data( upload, + ret = u_upload_data( upload, + min_out_offset, size, map + offset, out_offset, - outbuf ); - if (ret) - goto done; + outbuf, flushed ); done: if (map) diff --git a/src/gallium/auxiliary/util/u_upload_mgr.h b/src/gallium/auxiliary/util/u_upload_mgr.h index de016df02e0..fc8f4d3687a 100644 --- a/src/gallium/auxiliary/util/u_upload_mgr.h +++ b/src/gallium/auxiliary/util/u_upload_mgr.h @@ -32,6 +32,8 @@ #ifndef U_UPLOAD_MGR_H #define U_UPLOAD_MGR_H +#include "pipe/p_compiler.h" + struct pipe_context; struct pipe_resource; @@ -39,7 +41,7 @@ struct pipe_resource; struct u_upload_mgr *u_upload_create( struct pipe_context *pipe, unsigned default_size, unsigned alignment, - unsigned usage ); + unsigned bind ); void u_upload_destroy( struct u_upload_mgr *upload ); @@ -53,20 +55,55 @@ void u_upload_destroy( struct u_upload_mgr *upload ); */ void u_upload_flush( struct u_upload_mgr *upload ); +/** + * Sub-allocate new memory from the upload buffer. + * + * \param upload Upload manager + * \param min_out_offset Minimum offset that should be returned in out_offset. + * \param size Size of the allocation. + * \param out_offset Pointer to where the new buffer offset will be returned. + * \param outbuf Pointer to where the upload buffer will be returned. + * \param flushed Whether the upload buffer was flushed. + * \param ptr Pointer to the allocated memory that is returned. + */ +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 ); + +/** + * Allocate and write data to the upload buffer. + * + * Same as u_upload_alloc, but in addition to that, it copies "data" + * to the pointer returned from u_upload_alloc. + */ 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 ); + struct pipe_resource **outbuf, + boolean *flushed ); +/** + * Allocate and copy an input buffer to the upload buffer. + * + * Same as u_upload_data, except that the input data comes from a buffer + * instead of a user pointer. + */ 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 ); + struct pipe_resource **outbuf, + boolean *flushed ); -- cgit v1.2.3