summaryrefslogtreecommitdiffstats
path: root/src/gallium/drivers/r300/r300_screen_buffer.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/gallium/drivers/r300/r300_screen_buffer.c')
-rw-r--r--src/gallium/drivers/r300/r300_screen_buffer.c314
1 files changed, 314 insertions, 0 deletions
diff --git a/src/gallium/drivers/r300/r300_screen_buffer.c b/src/gallium/drivers/r300/r300_screen_buffer.c
new file mode 100644
index 00000000000..b97d0d76a4a
--- /dev/null
+++ b/src/gallium/drivers/r300/r300_screen_buffer.c
@@ -0,0 +1,314 @@
+/*
+ * 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_format.h"
+#include "util/u_memory.h"
+#include "util/u_upload_mgr.h"
+#include "util/u_math.h"
+
+#include "r300_screen_buffer.h"
+
+#include "r300_winsys.h"
+
+boolean r300_buffer_is_referenced(struct r300_context *r300,
+ struct pipe_buffer *buf)
+{
+ struct r300_buffer *rbuf = r300_buffer(buf);
+ if (r300_buffer_is_user_buffer(buf))
+ return FALSE;
+
+ return r300->rws->is_buffer_referenced(r300->rws, rbuf->buf);
+
+}
+int r300_upload_index_buffer(struct r300_context *r300,
+ struct pipe_buffer **index_buffer,
+ unsigned index_size,
+ unsigned start,
+ unsigned count)
+{
+ struct pipe_buffer *upload_buffer = NULL;
+ unsigned index_offset = start * index_size;
+ int ret = 0;
+
+ if (r300_buffer_is_user_buffer(*index_buffer)) {
+ ret = u_upload_buffer(r300->upload_ib,
+ index_offset,
+ count * index_size,
+ *index_buffer,
+ &index_offset,
+ &upload_buffer);
+ if (ret) {
+ goto done;
+ }
+ *index_buffer = upload_buffer;
+ }
+ done:
+ // if (upload_buffer)
+ // pipe_buffer_reference(&upload_buffer, NULL);
+ return ret;
+}
+
+int r300_upload_user_buffers(struct r300_context *r300)
+{
+ enum pipe_error ret = PIPE_OK;
+ int i, nr;
+
+ nr = r300->vertex_buffer_count;
+
+ for (i = 0; i < nr; i++) {
+
+ if (r300_buffer_is_user_buffer(r300->vertex_buffer[i].buffer)) {
+ struct pipe_buffer *upload_buffer = NULL;
+ unsigned offset = 0; /*r300->vertex_buffer[i].buffer_offset * 4;*/
+ unsigned size = r300->vertex_buffer[i].buffer->size;
+ unsigned upload_offset;
+ ret = u_upload_buffer(r300->upload_vb,
+ offset, size,
+ r300->vertex_buffer[i].buffer,
+ &upload_offset, &upload_buffer);
+ if (ret)
+ return ret;
+
+ pipe_buffer_reference(&r300->vertex_buffer[i].buffer, NULL);
+ r300->vertex_buffer[i].buffer = upload_buffer;
+ r300->vertex_buffer[i].buffer_offset = upload_offset;
+ }
+ }
+ return ret;
+}
+
+static struct r300_winsys_buffer *
+r300_winsys_buffer_create(struct r300_screen *r300screen,
+ unsigned alignment,
+ unsigned usage,
+ unsigned size)
+{
+ struct r300_winsys_screen *rws = r300screen->rws;
+ struct r300_winsys_buffer *buf;
+
+ buf = rws->buffer_create(rws, alignment, usage, size);
+ return buf;
+}
+
+static void r300_winsys_buffer_destroy(struct r300_screen *r300screen,
+ struct r300_buffer *rbuf)
+{
+ struct r300_winsys_screen *rws = r300screen->rws;
+
+ if (rbuf->buf) {
+ rws->buffer_reference(rws, &rbuf->buf, NULL);
+ rbuf->buf = NULL;
+ }
+}
+
+static struct pipe_buffer *r300_buffer_create(struct pipe_screen *screen,
+ unsigned alignment,
+ unsigned usage,
+ unsigned size)
+{
+ struct r300_screen *r300screen = r300_screen(screen);
+ struct r300_buffer *rbuf;
+
+ rbuf = CALLOC_STRUCT(r300_buffer);
+ if (!rbuf)
+ goto error1;
+
+ rbuf->magic = R300_BUFFER_MAGIC;
+
+ pipe_reference_init(&rbuf->base.reference, 1);
+ rbuf->base.screen = screen;
+ rbuf->base.alignment = alignment;
+ rbuf->base.usage = usage;
+ rbuf->base.size = size;
+
+ rbuf->buf = r300_winsys_buffer_create(r300screen,
+ alignment,
+ usage,
+ size);
+
+ if (!rbuf->buf)
+ goto error2;
+
+ return &rbuf->base;
+error2:
+ FREE(rbuf);
+error1:
+ return NULL;
+}
+
+
+static struct pipe_buffer *r300_user_buffer_create(struct pipe_screen *screen,
+ void *ptr,
+ unsigned bytes)
+{
+ struct r300_buffer *rbuf;
+
+ rbuf = CALLOC_STRUCT(r300_buffer);
+ if (!rbuf)
+ goto no_rbuf;
+
+ rbuf->magic = R300_BUFFER_MAGIC;
+
+ pipe_reference_init(&rbuf->base.reference, 1);
+ rbuf->base.screen = screen;
+ rbuf->base.alignment = 1;
+ rbuf->base.usage = 0;
+ rbuf->base.size = bytes;
+
+ rbuf->user_buffer = ptr;
+ return &rbuf->base;
+
+no_rbuf:
+ return NULL;
+}
+
+static void r300_buffer_destroy(struct pipe_buffer *buf)
+{
+ struct r300_screen *r300screen = r300_screen(buf->screen);
+ struct r300_buffer *rbuf = r300_buffer(buf);
+
+ r300_winsys_buffer_destroy(r300screen, rbuf);
+ FREE(rbuf);
+}
+
+static void *
+r300_buffer_map_range(struct pipe_screen *screen,
+ struct pipe_buffer *buf,
+ unsigned offset, unsigned length,
+ unsigned usage )
+{
+ struct r300_screen *r300screen = r300_screen(screen);
+ struct r300_winsys_screen *rws = r300screen->rws;
+ struct r300_buffer *rbuf = r300_buffer(buf);
+ void *map;
+ int flush = 0;
+ int i;
+
+ if (rbuf->user_buffer)
+ return rbuf->user_buffer;
+
+ if (rbuf->base.usage & PIPE_BUFFER_USAGE_CONSTANT)
+ goto just_map;
+
+ /* check if the mapping is to a range we already flushed */
+ if (usage & PIPE_BUFFER_USAGE_DISCARD) {
+ for (i = 0; i < rbuf->num_ranges; i++) {
+
+ 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);
+
+ rbuf->num_ranges = 0;
+ rbuf->map = NULL;
+ rbuf->buf = r300_winsys_buffer_create(r300screen,
+ rbuf->base.alignment,
+ rbuf->base.usage,
+ rbuf->base.size);
+ break;
+ }
+ }
+ }
+just_map:
+ map = rws->buffer_map(rws, rbuf->buf, usage | R300_USAGE_FLAG_DONT_SYNC);
+
+ return map;
+}
+
+static void
+r300_buffer_flush_mapped_range( struct pipe_screen *screen,
+ struct pipe_buffer *buf,
+ unsigned offset,
+ unsigned length )
+{
+ struct r300_buffer *rbuf = r300_buffer(buf);
+ int i;
+
+ if (rbuf->user_buffer)
+ return;
+
+ if (rbuf->base.usage & PIPE_BUFFER_USAGE_CONSTANT)
+ return;
+
+ /* 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)) {
+ rbuf->ranges[i].start = MIN2(rbuf->ranges[i].start, offset);
+ rbuf->ranges[i].end = MAX2(rbuf->ranges[i].end, (offset+length));
+ return;
+ }
+ }
+
+ rbuf->ranges[rbuf->num_ranges].start = offset;
+ rbuf->ranges[rbuf->num_ranges].end = offset+length;
+ rbuf->num_ranges++;
+}
+
+static void *
+r300_buffer_map(struct pipe_screen *screen,
+ struct pipe_buffer *buf,
+ unsigned usage)
+{
+ struct r300_screen *r300screen = r300_screen(screen);
+ struct r300_winsys_screen *rws = r300screen->rws;
+ struct r300_buffer *rbuf = r300_buffer(buf);
+ void *map;
+
+ if (rbuf->user_buffer)
+ return rbuf->user_buffer;
+
+ map = rws->buffer_map(rws, rbuf->buf, usage);
+
+ return map;
+}
+
+static void
+r300_buffer_unmap(struct pipe_screen *screen,
+ struct pipe_buffer *buf)
+{
+ struct r300_screen *r300screen = r300_screen(screen);
+ struct r300_winsys_screen *rws = r300screen->rws;
+ struct r300_buffer *rbuf = r300_buffer(buf);
+
+ if (rbuf->buf) {
+ rws->buffer_unmap(rws, rbuf->buf);
+ }
+}
+
+void r300_screen_init_buffer_functions(struct r300_screen *r300screen)
+{
+ r300screen->screen.buffer_create = r300_buffer_create;
+ r300screen->screen.user_buffer_create = r300_user_buffer_create;
+ r300screen->screen.buffer_map = r300_buffer_map;
+ r300screen->screen.buffer_map_range = r300_buffer_map_range;
+ r300screen->screen.buffer_flush_mapped_range = r300_buffer_flush_mapped_range;
+ r300screen->screen.buffer_unmap = r300_buffer_unmap;
+ r300screen->screen.buffer_destroy = r300_buffer_destroy;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-11 09:29:59 +0000