| /* |
| * 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, const uint8_t *ptr) |
| { |
| unsigned index_offset; |
| |
| *index_buffer = NULL; |
| |
| u_upload_data(r300->uploader, |
| 0, count * index_size, 4, |
| ptr + (*start * index_size), |
| &index_offset, |
| index_buffer); |
| |
| *start = index_offset / index_size; |
| } |
| |
| static void r300_buffer_destroy(struct pipe_screen *screen, |
| struct pipe_resource *buf) |
| { |
| struct r300_resource *rbuf = r300_resource(buf); |
| |
| align_free(rbuf->malloced_buffer); |
| |
| if (rbuf->buf) |
| pb_reference(&rbuf->buf, NULL); |
| |
| FREE(rbuf); |
| } |
| |
| static void * |
| r300_buffer_transfer_map( struct pipe_context *context, |
| struct pipe_resource *resource, |
| unsigned level, |
| unsigned usage, |
| const struct pipe_box *box, |
| struct pipe_transfer **ptransfer ) |
| { |
| struct r300_context *r300 = r300_context(context); |
| struct radeon_winsys *rws = r300->screen->rws; |
| struct r300_resource *rbuf = r300_resource(resource); |
| struct pipe_transfer *transfer; |
| uint8_t *map; |
| |
| transfer = slab_alloc(&r300->pool_transfers); |
| transfer->resource = resource; |
| transfer->level = level; |
| transfer->usage = usage; |
| transfer->box = *box; |
| transfer->stride = 0; |
| transfer->layer_stride = 0; |
| |
| if (rbuf->malloced_buffer) { |
| *ptransfer = transfer; |
| return rbuf->malloced_buffer + box->x; |
| } |
| |
| if (usage & PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE && |
| !(usage & PIPE_TRANSFER_UNSYNCHRONIZED)) { |
| assert(usage & PIPE_TRANSFER_WRITE); |
| |
| /* Check if mapping this buffer would cause waiting for the GPU. */ |
| if (r300->rws->cs_is_buffer_referenced(r300->cs, rbuf->buf, RADEON_USAGE_READWRITE) || |
| !r300->rws->buffer_wait(rbuf->buf, 0, RADEON_USAGE_READWRITE)) { |
| unsigned i; |
| struct pb_buffer *new_buf; |
| |
| /* Create a new one in the same pipe_resource. */ |
| new_buf = r300->rws->buffer_create(r300->rws, rbuf->b.b.width0, |
| R300_BUFFER_ALIGNMENT, |
| rbuf->domain, 0); |
| if (new_buf) { |
| /* Discard the old buffer. */ |
| pb_reference(&rbuf->buf, NULL); |
| rbuf->buf = new_buf; |
| |
| /* We changed the buffer, now we need to bind it where the old one was bound. */ |
| for (i = 0; i < r300->nr_vertex_buffers; i++) { |
| if (r300->vertex_buffer[i].buffer.resource == &rbuf->b.b) { |
| r300->vertex_arrays_dirty = TRUE; |
| break; |
| } |
| } |
| } |
| } |
| } |
| |
| /* Buffers are never used for write, therefore mapping for read can be |
| * unsynchronized. */ |
| if (!(usage & PIPE_TRANSFER_WRITE)) { |
| usage |= PIPE_TRANSFER_UNSYNCHRONIZED; |
| } |
| |
| map = rws->buffer_map(rbuf->buf, r300->cs, usage); |
| |
| if (!map) { |
| slab_free(&r300->pool_transfers, transfer); |
| return NULL; |
| } |
| |
| *ptransfer = transfer; |
| return map + box->x; |
| } |
| |
| static void r300_buffer_transfer_unmap( struct pipe_context *pipe, |
| struct pipe_transfer *transfer ) |
| { |
| struct r300_context *r300 = r300_context(pipe); |
| |
| slab_free(&r300->pool_transfers, transfer); |
| } |
| |
| static const struct u_resource_vtbl r300_buffer_vtbl = |
| { |
| NULL, /* get_handle */ |
| r300_buffer_destroy, /* resource_destroy */ |
| r300_buffer_transfer_map, /* transfer_map */ |
| NULL, /* transfer_flush_region */ |
| r300_buffer_transfer_unmap, /* transfer_unmap */ |
| }; |
| |
| 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; |
| |
| rbuf = MALLOC_STRUCT(r300_resource); |
| |
| rbuf->b.b = *templ; |
| rbuf->b.vtbl = &r300_buffer_vtbl; |
| pipe_reference_init(&rbuf->b.b.reference, 1); |
| rbuf->b.b.screen = screen; |
| rbuf->domain = RADEON_DOMAIN_GTT; |
| rbuf->buf = NULL; |
| rbuf->malloced_buffer = NULL; |
| |
| /* Allocate constant buffers and SWTCL vertex and index buffers in RAM. |
| * Note that uploaded index buffers use the flag PIPE_BIND_CUSTOM, so that |
| * we can distinguish them from user-created buffers. |
| */ |
| if (templ->bind & PIPE_BIND_CONSTANT_BUFFER || |
| (!r300screen->caps.has_tcl && !(templ->bind & PIPE_BIND_CUSTOM))) { |
| rbuf->malloced_buffer = align_malloc(templ->width0, 64); |
| return &rbuf->b.b; |
| } |
| |
| rbuf->buf = |
| r300screen->rws->buffer_create(r300screen->rws, rbuf->b.b.width0, |
| R300_BUFFER_ALIGNMENT, |
| rbuf->domain, 0); |
| if (!rbuf->buf) { |
| FREE(rbuf); |
| return NULL; |
| } |
| return &rbuf->b.b; |
| } |