/* * 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 #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; *index_buffer = NULL; u_upload_data(r300->uploader, 0, count * index_size, 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_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; enum pipe_transfer_usage usage; if (rbuf->b.b.user_ptr) return rbuf->b.b.user_ptr + transfer->box.x; if (rbuf->constant_buffer) return (uint8_t *) rbuf->constant_buffer + transfer->box.x; /* Buffers are never used for write, therefore mapping for read can be * unsynchronized. */ usage = transfer->usage; if (!(usage & PIPE_TRANSFER_WRITE)) { usage |= PIPE_TRANSFER_UNSYNCHRONIZED; } map = rws->buffer_map(rbuf->cs_buf, r300->cs, 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 ) { /* no-op */ } 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 */ NULL /* 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 = *templ; rbuf->b.vtbl = &r300_buffer_vtbl; pipe_reference_init(&rbuf->b.b.reference, 1); rbuf->b.b.screen = screen; rbuf->b.b.user_ptr = NULL; rbuf->domain = RADEON_DOMAIN_GTT; 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; } rbuf->buf = r300screen->rws->buffer_create(r300screen->rws, rbuf->b.b.width0, alignment, rbuf->b.b.bind, rbuf->domain); 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; } 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.reference, 1); rbuf->b.b.screen = screen; rbuf->b.b.target = PIPE_BUFFER; rbuf->b.b.format = PIPE_FORMAT_R8_UNORM; rbuf->b.b.usage = PIPE_USAGE_IMMUTABLE; rbuf->b.b.bind = bind; rbuf->b.b.width0 = ~0; rbuf->b.b.height0 = 1; rbuf->b.b.depth0 = 1; rbuf->b.b.array_size = 1; rbuf->b.b.flags = 0; rbuf->b.b.user_ptr = ptr; rbuf->b.vtbl = &r300_buffer_vtbl; rbuf->domain = RADEON_DOMAIN_GTT; rbuf->buf = NULL; rbuf->constant_buffer = NULL; return &rbuf->b.b; }