diff options
Diffstat (limited to 'src/gallium/drivers')
-rw-r--r-- | src/gallium/drivers/r300/r300_screen_buffer.c | 120 |
1 files changed, 36 insertions, 84 deletions
diff --git a/src/gallium/drivers/r300/r300_screen_buffer.c b/src/gallium/drivers/r300/r300_screen_buffer.c index b7b7a6eff27..28f10e0c541 100644 --- a/src/gallium/drivers/r300/r300_screen_buffer.c +++ b/src/gallium/drivers/r300/r300_screen_buffer.c @@ -147,33 +147,30 @@ static void r300_buffer_destroy(struct pipe_screen *screen, } static void * -r300_buffer_map_range(struct pipe_screen *screen, - struct pipe_resource *buf, - unsigned offset, unsigned length, - unsigned usage ) +r300_buffer_transfer_map( struct pipe_context *pipe, + struct pipe_transfer *transfer ) { - struct r300_screen *r300screen = r300_screen(screen); + struct r300_screen *r300screen = r300_screen(pipe->screen); struct r300_winsys_screen *rws = r300screen->rws; - struct r300_buffer *rbuf = r300_buffer(buf); - void *map; - int flush = 0; - int i; + struct r300_buffer *rbuf = r300_buffer(transfer->resource); + uint8_t *map; + boolean flush = FALSE; + unsigned i; if (rbuf->user_buffer) - return rbuf->user_buffer; + return rbuf->user_buffer + transfer->box.x; if (rbuf->b.b.bind & PIPE_BIND_CONSTANT_BUFFER) { goto just_map; } /* check if the mapping is to a range we already flushed */ - if (usage & PIPE_TRANSFER_DISCARD) { + if (transfer->usage & PIPE_TRANSFER_DISCARD) { for (i = 0; i < rbuf->num_ranges; i++) { + if ((transfer->box.x >= rbuf->ranges[i].start) && + (transfer->box.x < rbuf->ranges[i].end)) + flush = TRUE; - if ((offset >= rbuf->ranges[i].start) && - (offset < rbuf->ranges[i].end)) - flush = 1; - if (flush) { /* unreference this hw buffer and allocate a new one */ rws->buffer_reference(rws, &rbuf->buf, NULL); @@ -189,19 +186,28 @@ r300_buffer_map_range(struct pipe_screen *screen, } } just_map: - map = rws->buffer_map(rws, rbuf->buf, usage); - - return map; + map = rws->buffer_map(rws, rbuf->buf, transfer->usage); + + if (map == NULL) + return NULL; + + /* map_buffer() returned a pointer to the beginning of the buffer, + * but transfers are expected to return a pointer to just the + * region specified in the box. + */ + return map + transfer->box.x; } -static void -r300_buffer_flush_mapped_range( struct pipe_screen *screen, - struct pipe_resource *buf, - unsigned offset, - unsigned length ) +static void r300_buffer_transfer_flush_region( struct pipe_context *pipe, + struct pipe_transfer *transfer, + const struct pipe_box *box) { - struct r300_buffer *rbuf = r300_buffer(buf); - int i; + struct r300_buffer *rbuf = r300_buffer(transfer->resource); + unsigned i; + unsigned offset = transfer->box.x + box->x; + unsigned length = box->width; + + assert(box->x + box->width <= transfer->box.width); if (rbuf->user_buffer) return; @@ -211,7 +217,7 @@ r300_buffer_flush_mapped_range( struct pipe_screen *screen, /* mark the range as used */ for(i = 0; i < rbuf->num_ranges; ++i) { - if(offset <= rbuf->ranges[i].end && rbuf->ranges[i].start <= (offset+length)) { + if(offset <= rbuf->ranges[i].end && rbuf->ranges[i].start <= (offset+box->width)) { rbuf->ranges[i].start = MIN2(rbuf->ranges[i].start, offset); rbuf->ranges[i].end = MAX2(rbuf->ranges[i].end, (offset+length)); return; @@ -223,72 +229,18 @@ r300_buffer_flush_mapped_range( struct pipe_screen *screen, rbuf->num_ranges++; } - -static void -r300_buffer_unmap(struct pipe_screen *screen, - struct pipe_resource *buf) +static void r300_buffer_transfer_unmap( struct pipe_context *pipe, + struct pipe_transfer *transfer ) { - struct r300_screen *r300screen = r300_screen(screen); + struct r300_screen *r300screen = r300_screen(pipe->screen); struct r300_winsys_screen *rws = r300screen->rws; - struct r300_buffer *rbuf = r300_buffer(buf); + struct r300_buffer *rbuf = r300_buffer(transfer->resource); if (rbuf->buf) { rws->buffer_unmap(rws, rbuf->buf); } } - - - -/* As a first step, keep the original code intact, implement buffer - * transfers in terms of the old map/unmap functions. - * - * Utility functions for transfer create/destroy are hooked in and - * just record the arguments to those functions. - */ -static void * -r300_buffer_transfer_map( struct pipe_context *pipe, - struct pipe_transfer *transfer ) -{ - uint8_t *map = r300_buffer_map_range( pipe->screen, - transfer->resource, - transfer->box.x, - transfer->box.width, - transfer->usage ); - if (map == NULL) - return NULL; - - /* map_buffer() returned a pointer to the beginning of the buffer, - * but transfers are expected to return a pointer to just the - * region specified in the box. - */ - return map + transfer->box.x; -} - - - -static void r300_buffer_transfer_flush_region( struct pipe_context *pipe, - struct pipe_transfer *transfer, - const struct pipe_box *box) -{ - assert(box->x + box->width <= transfer->box.width); - - r300_buffer_flush_mapped_range(pipe->screen, - transfer->resource, - transfer->box.x + box->x, - box->width); -} - -static void r300_buffer_transfer_unmap( struct pipe_context *pipe, - struct pipe_transfer *transfer ) -{ - r300_buffer_unmap(pipe->screen, - transfer->resource); -} - - - - struct u_resource_vtbl r300_buffer_vtbl = { u_default_resource_get_handle, /* get_handle */ |