Mesa (master): i915g: add fake occlusion queries.
Stephane Marchesin
marcheu at kemper.freedesktop.org
Sat Jun 25 00:33:17 UTC 2011
Module: Mesa
Branch: master
Commit: 7b44830ef40b6d4644c3f55189ed2457e6822428
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=7b44830ef40b6d4644c3f55189ed2457e6822428
Author: Stéphane Marchesin <marcheu at chromium.org>
Date: Fri Jun 24 17:18:12 2011 -0700
i915g: add fake occlusion queries.
Those always return 0, but at least we don't crash when exposing GL 2.0.
---
src/gallium/drivers/i915/Makefile | 1 +
src/gallium/drivers/i915/SConscript | 1 +
src/gallium/drivers/i915/i915_context.c | 2 +
src/gallium/drivers/i915/i915_query.c | 85 +++++++++++++++++++++++++++++++
src/gallium/drivers/i915/i915_query.h | 36 +++++++++++++
5 files changed, 125 insertions(+), 0 deletions(-)
diff --git a/src/gallium/drivers/i915/Makefile b/src/gallium/drivers/i915/Makefile
index b3f387f..7781247 100644
--- a/src/gallium/drivers/i915/Makefile
+++ b/src/gallium/drivers/i915/Makefile
@@ -21,6 +21,7 @@ C_SOURCES = \
i915_screen.c \
i915_prim_emit.c \
i915_prim_vbuf.c \
+ i915_query.c \
i915_resource.c \
i915_resource_texture.c \
i915_resource_buffer.c \
diff --git a/src/gallium/drivers/i915/SConscript b/src/gallium/drivers/i915/SConscript
index 8f5deed..9837060 100644
--- a/src/gallium/drivers/i915/SConscript
+++ b/src/gallium/drivers/i915/SConscript
@@ -16,6 +16,7 @@ i915 = env.ConvenienceLibrary(
'i915_fpc_translate.c',
'i915_prim_emit.c',
'i915_prim_vbuf.c',
+ 'i915_query.c',
'i915_screen.c',
'i915_state.c',
'i915_state_derived.c',
diff --git a/src/gallium/drivers/i915/i915_context.c b/src/gallium/drivers/i915/i915_context.c
index ab4ea9a..6d2e104 100644
--- a/src/gallium/drivers/i915/i915_context.c
+++ b/src/gallium/drivers/i915/i915_context.c
@@ -29,6 +29,7 @@
#include "i915_state.h"
#include "i915_screen.h"
#include "i915_surface.h"
+#include "i915_query.h"
#include "i915_batch.h"
#include "i915_resource.h"
@@ -172,6 +173,7 @@ i915_create_context(struct pipe_screen *screen, void *priv)
i915_init_state_functions(i915);
i915_init_flush_functions(i915);
i915_init_resource_functions(i915);
+ i915_init_query_functions(i915);
draw_install_aaline_stage(i915->draw, &i915->base);
draw_install_aapoint_stage(i915->draw, &i915->base);
diff --git a/src/gallium/drivers/i915/i915_query.c b/src/gallium/drivers/i915/i915_query.c
new file mode 100644
index 0000000..77ed946
--- /dev/null
+++ b/src/gallium/drivers/i915/i915_query.c
@@ -0,0 +1,85 @@
+/**************************************************************************
+ *
+ * Copyright 2011 The Chromium OS authors.
+ * 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, 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 GOOGLE AND/OR ITS 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.
+ *
+ **************************************************************************/
+
+/* Fake occlusion queries which return 0, it's better than crashing */
+
+#include "pipe/p_compiler.h"
+
+#include "util/u_memory.h"
+
+#include "i915_context.h"
+#include "i915_query.h"
+
+struct i915_query
+{
+ unsigned query;
+};
+
+static struct pipe_query *i915_create_query(struct pipe_context *ctx,
+ unsigned query_type)
+{
+ struct i915_query *query = CALLOC_STRUCT( i915_query );
+
+ return (struct pipe_query *)query;
+}
+
+static void i915_destroy_query(struct pipe_context *ctx,
+ struct pipe_query *query)
+{
+ FREE(query);
+}
+
+static void i915_begin_query(struct pipe_context *ctx,
+ struct pipe_query *query)
+{
+}
+
+static void i915_end_query(struct pipe_context *ctx, struct pipe_query *query)
+{
+}
+
+static boolean i915_get_query_result(struct pipe_context *ctx,
+ struct pipe_query *query,
+ boolean wait,
+ void *vresult)
+{
+ uint64_t *result = (uint64_t*)vresult;
+
+ *result = 0;
+ return TRUE;
+}
+
+void
+i915_init_query_functions(struct i915_context *i915)
+{
+ i915->base.create_query = i915_create_query;
+ i915->base.destroy_query = i915_destroy_query;
+ i915->base.begin_query = i915_begin_query;
+ i915->base.end_query = i915_end_query;
+ i915->base.get_query_result = i915_get_query_result;
+}
+
diff --git a/src/gallium/drivers/i915/i915_query.h b/src/gallium/drivers/i915/i915_query.h
new file mode 100644
index 0000000..2c689ea
--- /dev/null
+++ b/src/gallium/drivers/i915/i915_query.h
@@ -0,0 +1,36 @@
+/**************************************************************************
+ *
+ * Copyright 2011 The Chromium OS authors.
+ * 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, 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 GOOGLE AND/OR ITS 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.
+ *
+ **************************************************************************/
+
+#ifndef I915_QUERY_H
+#define I915_QUERY_H
+
+struct i915_context;
+struct pipe_context;
+
+void i915_init_query_functions( struct i915_context *i915 );
+
+#endif /* I915_QUERY_H */
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