| /* |
| * Copyright 2010 Red Hat Inc. |
| * |
| * 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 |
| * on 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 |
| * THE AUTHOR(S) AND/OR THEIR 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. |
| * |
| * Authors: Dave Airlie |
| */ |
| |
| #include <stdio.h> |
| |
| #include "util/u_inlines.h" |
| #include "util/u_memory.h" |
| #include "util/u_upload_mgr.h" |
| #include "util/u_math.h" |
| |
| #include "r300_screen_buffer.h" |
| |
| void r300_upload_index_buffer(struct r300_context *r300, |
| struct pipe_resource **index_buffer, |
| unsigned index_size, unsigned *start, |
| unsigned count, uint8_t *ptr) |
| { |
| unsigned index_offset; |
| boolean flushed; |
| |
| *index_buffer = NULL; |
| |
| u_upload_data(r300->vbuf_mgr->uploader, |
| 0, count * index_size, |
| ptr + (*start * index_size), |
| &index_offset, |
| index_buffer, &flushed); |
| |
| *start = index_offset / index_size; |
| } |
| |
| static void r300_buffer_destroy(struct pipe_screen *screen, |
| struct pipe_resource *buf) |
| { |
| struct r300_screen *r300screen = r300_screen(screen); |
| struct r300_resource *rbuf = r300_resource(buf); |
| |
| if (rbuf->constant_buffer) |
| FREE(rbuf->constant_buffer); |
| |
| if (rbuf->buf) |
| pb_reference(&rbuf->buf, NULL); |
| |
| util_slab_free(&r300screen->pool_buffers, rbuf); |
| } |
| |
| static struct pipe_transfer* |
| r300_buffer_get_transfer(struct pipe_context *context, |
| struct pipe_resource *resource, |
| unsigned level, |
| unsigned usage, |
| const struct pipe_box *box) |
| { |
| struct r300_context *r300 = r300_context(context); |
| struct pipe_transfer *transfer = |
| util_slab_alloc(&r300->pool_transfers); |
| |
| transfer->resource = resource; |
| transfer->level = level; |
| transfer->usage = usage; |
| transfer->box = *box; |
| transfer->stride = 0; |
| transfer->layer_stride = 0; |
| transfer->data = NULL; |
| |
| /* Note strides are zero, this is ok for buffers, but not for |
| * textures 2d & higher at least. |
| */ |
| return transfer; |
| } |
| |
| static void r300_buffer_transfer_destroy(struct pipe_context *pipe, |
| struct pipe_transfer *transfer) |
| { |
| struct r300_context *r300 = r300_context(pipe); |
| util_slab_free(&r300->pool_transfers, transfer); |
| } |
| |
| static void * |
| r300_buffer_transfer_map( struct pipe_context *pipe, |
| struct pipe_transfer *transfer ) |
| { |
| struct r300_context *r300 = r300_context(pipe); |
| struct r300_screen *r300screen = r300_screen(pipe->screen); |
| struct radeon_winsys *rws = r300screen->rws; |
| struct r300_resource *rbuf = r300_resource(transfer->resource); |
| uint8_t *map; |
| |
| if (rbuf->b.user_ptr) |
| return (uint8_t *) rbuf->b.user_ptr + transfer->box.x; |
| if (rbuf->constant_buffer) |
| return (uint8_t *) rbuf->constant_buffer + transfer->box.x; |
| |
| map = rws->buffer_map(rbuf->buf, r300->cs, transfer->usage); |
| |
| if (map == NULL) |
| return NULL; |
| |
| return map + transfer->box.x; |
| } |
| |
| static void r300_buffer_transfer_unmap( struct pipe_context *pipe, |
| struct pipe_transfer *transfer ) |
| { |
| struct r300_screen *r300screen = r300_screen(pipe->screen); |
| struct radeon_winsys *rws = r300screen->rws; |
| struct r300_resource *rbuf = r300_resource(transfer->resource); |
| |
| if (rbuf->buf) { |
| rws->buffer_unmap(rbuf->buf); |
| } |
| } |
| |
| static void r300_buffer_transfer_inline_write(struct pipe_context *pipe, |
| struct pipe_resource *resource, |
| unsigned level, |
| unsigned usage, |
| const struct pipe_box *box, |
| const void *data, |
| unsigned stride, |
| unsigned layer_stride) |
| { |
| struct r300_context *r300 = r300_context(pipe); |
| struct radeon_winsys *rws = r300->screen->rws; |
| struct r300_resource *rbuf = r300_resource(resource); |
| uint8_t *map = NULL; |
| |
| if (rbuf->constant_buffer) { |
| memcpy(rbuf->constant_buffer + box->x, data, box->width); |
| return; |
| } |
| assert(rbuf->b.user_ptr == NULL); |
| |
| map = rws->buffer_map(rbuf->buf, r300->cs, |
| PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD | usage); |
| |
| memcpy(map + box->x, data, box->width); |
| |
| rws->buffer_unmap(rbuf->buf); |
| } |
| |
| static const struct u_resource_vtbl r300_buffer_vtbl = |
| { |
| NULL, /* get_handle */ |
| r300_buffer_destroy, /* resource_destroy */ |
| r300_buffer_get_transfer, /* get_transfer */ |
| r300_buffer_transfer_destroy, /* transfer_destroy */ |
| r300_buffer_transfer_map, /* transfer_map */ |
| NULL, /* transfer_flush_region */ |
| r300_buffer_transfer_unmap, /* transfer_unmap */ |
| r300_buffer_transfer_inline_write /* transfer_inline_write */ |
| }; |
| |
| struct pipe_resource *r300_buffer_create(struct pipe_screen *screen, |
| const struct pipe_resource *templ) |
| { |
| struct r300_screen *r300screen = r300_screen(screen); |
| struct r300_resource *rbuf; |
| unsigned alignment = 16; |
| |
| rbuf = util_slab_alloc(&r300screen->pool_buffers); |
| |
| rbuf->b.b.b = *templ; |
| rbuf->b.b.vtbl = &r300_buffer_vtbl; |
| pipe_reference_init(&rbuf->b.b.b.reference, 1); |
| rbuf->b.b.b.screen = screen; |
| rbuf->b.user_ptr = NULL; |
| rbuf->buf = NULL; |
| rbuf->constant_buffer = NULL; |
| |
| /* Alloc constant buffers in RAM. */ |
| if (templ->bind & PIPE_BIND_CONSTANT_BUFFER) { |
| rbuf->constant_buffer = MALLOC(templ->width0); |
| return &rbuf->b.b.b; |
| } |
| |
| rbuf->buf = |
| r300screen->rws->buffer_create(r300screen->rws, |
| rbuf->b.b.b.width0, alignment, |
| rbuf->b.b.b.bind, rbuf->b.b.b.usage); |
| if (!rbuf->buf) { |
| util_slab_free(&r300screen->pool_buffers, rbuf); |
| return NULL; |
| } |
| |
| rbuf->cs_buf = |
| r300screen->rws->buffer_get_cs_handle(rbuf->buf); |
| |
| return &rbuf->b.b.b; |
| } |
| |
| struct pipe_resource *r300_user_buffer_create(struct pipe_screen *screen, |
| void *ptr, unsigned size, |
| unsigned bind) |
| { |
| struct r300_screen *r300screen = r300_screen(screen); |
| struct r300_resource *rbuf; |
| |
| rbuf = util_slab_alloc(&r300screen->pool_buffers); |
| |
| pipe_reference_init(&rbuf->b.b.b.reference, 1); |
| rbuf->b.b.b.screen = screen; |
| rbuf->b.b.b.target = PIPE_BUFFER; |
| rbuf->b.b.b.format = PIPE_FORMAT_R8_UNORM; |
| rbuf->b.b.b.usage = PIPE_USAGE_IMMUTABLE; |
| rbuf->b.b.b.bind = bind; |
| rbuf->b.b.b.width0 = ~0; |
| rbuf->b.b.b.height0 = 1; |
| rbuf->b.b.b.depth0 = 1; |
| rbuf->b.b.b.array_size = 1; |
| rbuf->b.b.b.flags = 0; |
| rbuf->b.b.vtbl = &r300_buffer_vtbl; |
| rbuf->b.user_ptr = ptr; |
| rbuf->buf = NULL; |
| rbuf->constant_buffer = NULL; |
| return &rbuf->b.b.b; |
| } |