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Diffstat (limited to 'src/gallium/drivers/svga/svga_pipe_query.c')
-rw-r--r--src/gallium/drivers/svga/svga_pipe_query.c267
1 files changed, 267 insertions, 0 deletions
diff --git a/src/gallium/drivers/svga/svga_pipe_query.c b/src/gallium/drivers/svga/svga_pipe_query.c
new file mode 100644
index 00000000000..01336b0a2c3
--- /dev/null
+++ b/src/gallium/drivers/svga/svga_pipe_query.c
@@ -0,0 +1,267 @@
+/**********************************************************
+ * Copyright 2008-2009 VMware, Inc. All rights reserved.
+ *
+ * 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 the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, 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 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
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * 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.
+ *
+ **********************************************************/
+
+#include "pipe/p_state.h"
+#include "pipe/p_context.h"
+#include "util/u_memory.h"
+
+#include "svga_cmd.h"
+#include "svga_context.h"
+#include "svga_screen.h"
+#include "svga_screen_buffer.h"
+#include "svga_winsys.h"
+#include "svga_draw.h"
+#include "svga_debug.h"
+
+
+/* Fixme: want a public base class for all pipe structs, even if there
+ * isn't much in them.
+ */
+struct pipe_query {
+ int dummy;
+};
+
+struct svga_query {
+ struct pipe_query base;
+ SVGA3dQueryType type;
+ struct svga_winsys_buffer *hwbuf;
+ volatile SVGA3dQueryResult *queryResult;
+ struct pipe_fence_handle *fence;
+};
+
+/***********************************************************************
+ * Inline conversion functions. These are better-typed than the
+ * macros used previously:
+ */
+static INLINE struct svga_query *
+svga_query( struct pipe_query *q )
+{
+ return (struct svga_query *)q;
+}
+
+static boolean svga_get_query_result(struct pipe_context *pipe,
+ struct pipe_query *q,
+ boolean wait,
+ uint64_t *result);
+
+static struct pipe_query *svga_create_query( struct pipe_context *pipe,
+ unsigned query_type )
+{
+ struct svga_screen *svgascreen = svga_screen(pipe->screen);
+ struct svga_winsys_screen *sws = svgascreen->sws;
+ struct svga_query *sq;
+
+ SVGA_DBG(DEBUG_QUERY, "%s\n", __FUNCTION__);
+
+ sq = CALLOC_STRUCT(svga_query);
+ if (!sq)
+ goto no_sq;
+
+ sq->type = SVGA3D_QUERYTYPE_OCCLUSION;
+
+ sq->hwbuf = svga_winsys_buffer_create(svgascreen,
+ 1,
+ SVGA_BUFFER_USAGE_PINNED,
+ sizeof *sq->queryResult);
+ if(!sq->hwbuf)
+ goto no_hwbuf;
+
+ sq->queryResult = (SVGA3dQueryResult *)sws->buffer_map(sws,
+ sq->hwbuf,
+ PIPE_BUFFER_USAGE_CPU_WRITE);
+ if(!sq->queryResult)
+ goto no_query_result;
+
+ sq->queryResult->totalSize = sizeof *sq->queryResult;
+ sq->queryResult->state = SVGA3D_QUERYSTATE_NEW;
+
+ /*
+ * We request the buffer to be pinned and assume it is always mapped.
+ *
+ * The reason is that we don't want to wait for fences when checking the
+ * query status.
+ */
+ sws->buffer_unmap(sws, sq->hwbuf);
+
+ return &sq->base;
+
+no_query_result:
+ sws->buffer_destroy(sws, sq->hwbuf);
+no_hwbuf:
+ FREE(sq);
+no_sq:
+ return NULL;
+}
+
+static void svga_destroy_query(struct pipe_context *pipe,
+ struct pipe_query *q)
+{
+ struct svga_screen *svgascreen = svga_screen(pipe->screen);
+ struct svga_winsys_screen *sws = svgascreen->sws;
+ struct svga_query *sq = svga_query( q );
+
+ SVGA_DBG(DEBUG_QUERY, "%s\n", __FUNCTION__);
+ sws->buffer_destroy(sws, sq->hwbuf);
+ sws->fence_reference(sws, &sq->fence, NULL);
+ FREE(sq);
+}
+
+static void svga_begin_query(struct pipe_context *pipe,
+ struct pipe_query *q)
+{
+ struct svga_screen *svgascreen = svga_screen(pipe->screen);
+ struct svga_winsys_screen *sws = svgascreen->sws;
+ struct svga_context *svga = svga_context( pipe );
+ struct svga_query *sq = svga_query( q );
+ enum pipe_error ret;
+
+ SVGA_DBG(DEBUG_QUERY, "%s\n", __FUNCTION__);
+
+ assert(!svga->sq);
+
+ /* Need to flush out buffered drawing commands so that they don't
+ * get counted in the query results.
+ */
+ svga_hwtnl_flush_retry(svga);
+
+ if(sq->queryResult->state == SVGA3D_QUERYSTATE_PENDING) {
+ /* The application doesn't care for the pending query result. We cannot
+ * let go the existing buffer and just get a new one because its storage
+ * may be reused for other purposes and clobbered by the host when it
+ * determines the query result. So the only option here is to wait for
+ * the existing query's result -- not a big deal, given that no sane
+ * application would do this.
+ */
+ uint64_t result;
+
+ svga_get_query_result(pipe, q, TRUE, &result);
+
+ assert(sq->queryResult->state != SVGA3D_QUERYSTATE_PENDING);
+ }
+
+ sq->queryResult->state = SVGA3D_QUERYSTATE_NEW;
+ sws->fence_reference(sws, &sq->fence, NULL);
+
+ ret = SVGA3D_BeginQuery(svga->swc, sq->type);
+ if(ret != PIPE_OK) {
+ svga_context_flush(svga, NULL);
+ ret = SVGA3D_BeginQuery(svga->swc, sq->type);
+ assert(ret == PIPE_OK);
+ }
+
+ svga->sq = sq;
+}
+
+static void svga_end_query(struct pipe_context *pipe,
+ struct pipe_query *q)
+{
+ struct svga_context *svga = svga_context( pipe );
+ struct svga_query *sq = svga_query( q );
+ enum pipe_error ret;
+
+ SVGA_DBG(DEBUG_QUERY, "%s\n", __FUNCTION__);
+ assert(svga->sq == sq);
+
+ svga_hwtnl_flush_retry(svga);
+
+ /* Set to PENDING before sending EndQuery. */
+ sq->queryResult->state = SVGA3D_QUERYSTATE_PENDING;
+
+ ret = SVGA3D_EndQuery( svga->swc, sq->type, sq->hwbuf);
+ if(ret != PIPE_OK) {
+ svga_context_flush(svga, NULL);
+ ret = SVGA3D_EndQuery( svga->swc, sq->type, sq->hwbuf);
+ assert(ret == PIPE_OK);
+ }
+
+ /* TODO: Delay flushing. We don't really need to flush here, just ensure
+ * that there is one flush before svga_get_query_result attempts to get the
+ * result */
+ svga_context_flush(svga, NULL);
+
+ svga->sq = NULL;
+}
+
+static boolean svga_get_query_result(struct pipe_context *pipe,
+ struct pipe_query *q,
+ boolean wait,
+ uint64_t *result)
+{
+ struct svga_context *svga = svga_context( pipe );
+ struct svga_screen *svgascreen = svga_screen( pipe->screen );
+ struct svga_winsys_screen *sws = svgascreen->sws;
+ struct svga_query *sq = svga_query( q );
+ SVGA3dQueryState state;
+
+ SVGA_DBG(DEBUG_QUERY, "%s wait: %d\n", __FUNCTION__);
+
+ /* The query status won't be updated by the host unless
+ * SVGA_3D_CMD_WAIT_FOR_QUERY is emitted. Unfortunately this will cause a
+ * synchronous wait on the host */
+ if(!sq->fence) {
+ enum pipe_error ret;
+
+ ret = SVGA3D_WaitForQuery( svga->swc, sq->type, sq->hwbuf);
+ if(ret != PIPE_OK) {
+ svga_context_flush(svga, NULL);
+ ret = SVGA3D_WaitForQuery( svga->swc, sq->type, sq->hwbuf);
+ assert(ret == PIPE_OK);
+ }
+
+ svga_context_flush(svga, &sq->fence);
+
+ assert(sq->fence);
+ }
+
+ state = sq->queryResult->state;
+ if(state == SVGA3D_QUERYSTATE_PENDING) {
+ if(!wait)
+ return FALSE;
+
+ sws->fence_finish(sws, sq->fence, 0);
+
+ state = sq->queryResult->state;
+ }
+
+ assert(state == SVGA3D_QUERYSTATE_SUCCEEDED ||
+ state == SVGA3D_QUERYSTATE_FAILED);
+
+ *result = (uint64_t)sq->queryResult->result32;
+
+ SVGA_DBG(DEBUG_QUERY, "%s result %d\n", __FUNCTION__, (unsigned)*result);
+
+ return TRUE;
+}
+
+
+
+void svga_init_query_functions( struct svga_context *svga )
+{
+ svga->pipe.create_query = svga_create_query;
+ svga->pipe.destroy_query = svga_destroy_query;
+ svga->pipe.begin_query = svga_begin_query;
+ svga->pipe.end_query = svga_end_query;
+ svga->pipe.get_query_result = svga_get_query_result;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-23 11:07:20 +0000