#include "main/objectlabel.h"
#include "main/objectpurge.h"
#include "main/performance_monitor.h"
+#include "main/performance_query.h"
#include "main/pipelineobj.h"
#include "main/pixel.h"
#include "main/pixelstore.h"
main/pbo.h \
main/performance_monitor.c \
main/performance_monitor.h \
+ main/performance_query.c \
+ main/performance_query.h \
main/pipelineobj.c \
main/pipelineobj.h \
main/pixel.c \
#include "matrix.h"
#include "multisample.h"
#include "performance_monitor.h"
+#include "performance_query.h"
#include "pipelineobj.h"
#include "pixel.h"
#include "pixelstore.h"
_mesa_init_matrix( ctx );
_mesa_init_multisample( ctx );
_mesa_init_performance_monitors( ctx );
+ _mesa_init_performance_queries( ctx );
_mesa_init_pipeline( ctx );
_mesa_init_pixel( ctx );
_mesa_init_pixelstore( ctx );
_mesa_free_varray_data(ctx);
_mesa_free_transform_feedback(ctx);
_mesa_free_performance_monitors(ctx);
+ _mesa_free_performance_queries(ctx);
_mesa_reference_buffer_object(ctx, &ctx->Pack.BufferObj, NULL);
_mesa_reference_buffer_object(ctx, &ctx->Unpack.BufferObj, NULL);
};
+/**
+ * Context state for INTEL_performance_query.
+ */
+struct gl_perf_query_state
+{
+ /** Array of performance monitor groups (indexed by group ID) */
+ const struct gl_perf_monitor_group *Groups;
+ GLuint NumGroups;
+
+ /** The table of all performance query objects. */
+ struct _mesa_HashTable *Objects;
+};
+
+
/**
* Names of the various vertex/fragment program register files, etc.
*
struct gl_transform_feedback_state TransformFeedback;
struct gl_perf_monitor_state PerfMonitor;
+ struct gl_perf_query_state PerfQuery;
struct gl_buffer_object *DrawIndirectBuffer; /** < GL_ARB_draw_indirect */
struct gl_buffer_object *ParameterBuffer; /** < GL_ARB_indirect_parameters */
return 0;
}
}
-
-extern void GLAPIENTRY
-_mesa_GetFirstPerfQueryIdINTEL(GLuint *queryId)
-{
- GET_CURRENT_CONTEXT(ctx);
- unsigned numGroups;
-
- init_groups(ctx);
-
- /* The GL_INTEL_performance_query spec says:
- *
- * "If queryId pointer is equal to 0, INVALID_VALUE error is generated."
- */
- if (!queryId) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glGetFirstPerfQueryIdINTEL(queryId == NULL)");
- return;
- }
-
- numGroups = ctx->PerfMonitor.NumGroups;
-
- /* The GL_INTEL_performance_query spec says:
- *
- * "If the given hardware platform doesn't support any performance
- * queries, then the value of 0 is returned and INVALID_OPERATION error
- * is raised."
- */
- if (numGroups == 0) {
- *queryId = 0;
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glGetFirstPerfQueryIdINTEL(no queries supported)");
- return;
- }
-
- *queryId = index_to_queryid(0);
-}
-
-extern void GLAPIENTRY
-_mesa_GetNextPerfQueryIdINTEL(GLuint queryId, GLuint *nextQueryId)
-{
- GET_CURRENT_CONTEXT(ctx);
- init_groups(ctx);
-
- /* The GL_INTEL_performance_query spec says:
- *
- * "The result is passed in location pointed by nextQueryId. If query
- * identified by queryId is the last query available the value of 0 is
- * returned. If the specified performance query identifier is invalid
- * then INVALID_VALUE error is generated. If nextQueryId pointer is
- * equal to 0, an INVALID_VALUE error is generated. Whenever error is
- * generated, the value of 0 is returned."
- */
-
- if (!nextQueryId) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glGetNextPerfQueryIdINTEL(nextQueryId == NULL)");
- return;
- }
-
- if (!queryid_valid(ctx, queryId)) {
- *nextQueryId = 0;
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glGetNextPerfQueryIdINTEL(invalid query)");
- return;
- }
-
- ++queryId;
-
- if (!queryid_valid(ctx, queryId)) {
- *nextQueryId = 0;
- } else {
- *nextQueryId = queryId;
- }
-}
-
-extern void GLAPIENTRY
-_mesa_GetPerfQueryIdByNameINTEL(char *queryName, GLuint *queryId)
-{
- GET_CURRENT_CONTEXT(ctx);
- unsigned i;
-
- init_groups(ctx);
-
- /* The GL_INTEL_performance_query spec says:
- *
- * "If queryName does not reference a valid query name, an INVALID_VALUE
- * error is generated."
- */
- if (!queryName) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glGetPerfQueryIdByNameINTEL(queryName == NULL)");
- return;
- }
-
- /* The specification does not state that this produces an error. */
- if (!queryId) {
- _mesa_warning(ctx, "glGetPerfQueryIdByNameINTEL(queryId == NULL)");
- return;
- }
-
- for (i = 0; i < ctx->PerfMonitor.NumGroups; ++i) {
- const struct gl_perf_monitor_group *group_obj = get_group(ctx, i);
- if (strcmp(group_obj->Name, queryName) == 0) {
- *queryId = index_to_queryid(i);
- return;
- }
- }
-
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glGetPerfQueryIdByNameINTEL(invalid query name)");
-}
-
-extern void GLAPIENTRY
-_mesa_GetPerfQueryInfoINTEL(GLuint queryId,
- GLuint queryNameLength, char *queryName,
- GLuint *dataSize, GLuint *noCounters,
- GLuint *noActiveInstances,
- GLuint *capsMask)
-{
- GET_CURRENT_CONTEXT(ctx);
- unsigned i;
-
- const struct gl_perf_monitor_group *group_obj;
-
- init_groups(ctx);
-
- group_obj = get_group(ctx, queryid_to_index(queryId));
- if (group_obj == NULL) {
- /* The GL_INTEL_performance_query spec says:
- *
- * "If queryId does not reference a valid query type, an
- * INVALID_VALUE error is generated."
- */
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glGetPerfQueryInfoINTEL(invalid query)");
- return;
- }
-
- if (queryName) {
- strncpy(queryName, group_obj->Name, queryNameLength);
-
- /* No specification given about whether the string needs to be
- * zero-terminated. Zero-terminate the string always as we don't
- * otherwise communicate the length of the returned string.
- */
- if (queryNameLength > 0) {
- queryName[queryNameLength - 1] = '\0';
- }
- }
-
- if (dataSize) {
- unsigned size = 0;
- for (i = 0; i < group_obj->NumCounters; ++i) {
- /* What we get from the driver is group id (uint32_t) + counter id
- * (uint32_t) + value.
- */
- size += 2 * sizeof(uint32_t) + _mesa_perf_monitor_counter_size(&group_obj->Counters[i]);
- }
- *dataSize = size;
- }
-
- if (noCounters) {
- *noCounters = group_obj->NumCounters;
- }
-
- /* The GL_INTEL_performance_query spec says:
- *
- * "-- the actual number of already created query instances in
- * maxInstances location"
- *
- * 1) Typo in the specification, should be noActiveInstances.
- * 2) Another typo in the specification, maxInstances parameter is not listed
- * in the declaration of this function in the list of new functions.
- */
- if (noActiveInstances) {
- *noActiveInstances = _mesa_HashNumEntries(ctx->PerfMonitor.Monitors);
- }
-
- if (capsMask) {
- /* TODO: This information not yet available in the monitor structs. For
- * now, we hardcode SINGLE_CONTEXT, since that's what the implementation
- * currently tries very hard to do.
- */
- *capsMask = GL_PERFQUERY_SINGLE_CONTEXT_INTEL;
- }
-}
-
-extern void GLAPIENTRY
-_mesa_GetPerfCounterInfoINTEL(GLuint queryId, GLuint counterId,
- GLuint counterNameLength, char *counterName,
- GLuint counterDescLength, char *counterDesc,
- GLuint *counterOffset, GLuint *counterDataSize, GLuint *counterTypeEnum,
- GLuint *counterDataTypeEnum, GLuint64 *rawCounterMaxValue)
-{
- GET_CURRENT_CONTEXT(ctx);
-
- const struct gl_perf_monitor_group *group_obj;
- const struct gl_perf_monitor_counter *counter_obj;
- unsigned counterIndex;
- unsigned i;
-
- init_groups(ctx);
-
- group_obj = get_group(ctx, queryid_to_index(queryId));
-
- /* The GL_INTEL_performance_query spec says:
- *
- * "If the pair of queryId and counterId does not reference a valid
- * counter, an INVALID_VALUE error is generated."
- */
- if (group_obj == NULL) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glGetPerfCounterInfoINTEL(invalid queryId)");
- return;
- }
-
- counterIndex = counterid_to_index(counterId);
- counter_obj = get_counter(group_obj, counterIndex);
-
- if (counter_obj == NULL) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glGetPerfCounterInfoINTEL(invalid counterId)");
- return;
- }
-
- if (counterName) {
- strncpy(counterName, counter_obj->Name, counterNameLength);
-
- /* No specification given about whether the string needs to be
- * zero-terminated. Zero-terminate the string always as we don't
- * otherwise communicate the length of the returned string.
- */
- if (counterNameLength > 0) {
- counterName[counterNameLength - 1] = '\0';
- }
- }
-
- if (counterDesc) {
- /* TODO: No separate description text at the moment. We pass the name
- * again for the moment.
- */
- strncpy(counterDesc, counter_obj->Name, counterDescLength);
-
- /* No specification given about whether the string needs to be
- * zero-terminated. Zero-terminate the string always as we don't
- * otherwise communicate the length of the returned string.
- */
- if (counterDescLength > 0) {
- counterDesc[counterDescLength - 1] = '\0';
- }
- }
-
- if (counterOffset) {
- unsigned offset = 0;
- for (i = 0; i < counterIndex; ++i) {
- /* What we get from the driver is group id (uint32_t) + counter id
- * (uint32_t) + value.
- */
- offset += 2 * sizeof(uint32_t) + _mesa_perf_monitor_counter_size(&group_obj->Counters[i]);
- }
- *counterOffset = 2 * sizeof(uint32_t) + offset;
- }
-
- if (counterDataSize) {
- *counterDataSize = _mesa_perf_monitor_counter_size(counter_obj);
- }
-
- if (counterTypeEnum) {
- /* TODO: Different counter types (semantic type, not data type) not
- * supported as of yet.
- */
- *counterTypeEnum = GL_PERFQUERY_COUNTER_RAW_INTEL;
- }
-
- if (counterDataTypeEnum) {
- switch (counter_obj->Type) {
- case GL_FLOAT:
- case GL_PERCENTAGE_AMD:
- *counterDataTypeEnum = GL_PERFQUERY_COUNTER_DATA_FLOAT_INTEL;
- break;
- case GL_UNSIGNED_INT:
- *counterDataTypeEnum = GL_PERFQUERY_COUNTER_DATA_UINT32_INTEL;
- break;
- case GL_UNSIGNED_INT64_AMD:
- *counterDataTypeEnum = GL_PERFQUERY_COUNTER_DATA_UINT64_INTEL;
- break;
- default:
- assert(!"Should not get here: invalid counter type");
- return;
- }
- }
-
- if (rawCounterMaxValue) {
- /* This value is (implicitly) specified to be used only with
- * GL_PERFQUERY_COUNTER_RAW_INTEL counters. When semantic types for
- * counters are added, that needs to be checked.
- */
-
- /* The GL_INTEL_performance_query spec says:
- *
- * "for some raw counters for which the maximal value is
- * deterministic, the maximal value of the counter in 1 second is
- * returned in the location pointed by rawCounterMaxValue, otherwise,
- * the location is written with the value of 0."
- *
- * The maximum value reported by the driver at the moment is not with
- * these semantics, so write 0 always to be safe.
- */
- *rawCounterMaxValue = 0;
- }
-}
-
-extern void GLAPIENTRY
-_mesa_CreatePerfQueryINTEL(GLuint queryId, GLuint *queryHandle)
-{
- GET_CURRENT_CONTEXT(ctx);
- GLuint first;
- GLuint group;
- const struct gl_perf_monitor_group *group_obj;
- struct gl_perf_monitor_object *m;
- unsigned i;
-
- init_groups(ctx);
-
- /* This is not specified in the extension, but is the only sane thing to
- * do.
- */
- if (queryHandle == NULL) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glCreatePerfQueryINTEL(queryHandle == NULL)");
- return;
- }
-
- group = queryid_to_index(queryId);
- group_obj = get_group(ctx, group);
-
- /* The GL_INTEL_performance_query spec says:
- *
- * "If queryId does not reference a valid query type, an INVALID_VALUE
- * error is generated."
- */
- if (group_obj == NULL) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glCreatePerfQueryINTEL(invalid queryId)");
- return;
- }
-
- /* The query object created here is the counterpart of a `monitor' in
- * AMD_performance_monitor. This call is equivalent to calling
- * GenPerfMonitorsAMD and SelectPerfMonitorCountersAMD with a list of all
- * counters in a group.
- */
-
- /* We keep the monitor ids contiguous */
- first = _mesa_HashFindFreeKeyBlock(ctx->PerfMonitor.Monitors, 1);
- if (!first) {
- /* The GL_INTEL_performance_query spec says:
- *
- * "If the query instance cannot be created due to exceeding the
- * number of allowed instances or driver fails query creation due to
- * an insufficient memory reason, an OUT_OF_MEMORY error is
- * generated, and the location pointed by queryHandle returns NULL."
- */
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCreatePerfQueryINTEL");
- return;
- }
-
- m = new_performance_monitor(ctx, first);
- if (m == NULL) {
- _mesa_error_no_memory(__func__);
- return;
- }
-
- _mesa_HashInsert(ctx->PerfMonitor.Monitors, first, m);
- *queryHandle = first;
-
- ctx->Driver.ResetPerfMonitor(ctx, m);
-
- for (i = 0; i < group_obj->NumCounters; ++i) {
- ++m->ActiveGroups[group];
- /* Counters are a continuous range of integers, 0 to NumCounters (excl),
- * so i is the counter value to use here.
- */
- BITSET_SET(m->ActiveCounters[group], i);
- }
-}
-
-extern void GLAPIENTRY
-_mesa_DeletePerfQueryINTEL(GLuint queryHandle)
-{
- GET_CURRENT_CONTEXT(ctx);
- struct gl_perf_monitor_object *m;
-
- /* The queryHandle is the counterpart to AMD_performance_monitor's monitor
- * id.
- */
- m = lookup_monitor(ctx, queryHandle);
-
- /* The GL_INTEL_performance_query spec says:
- *
- * "If a query handle doesn't reference a previously created performance
- * query instance, an INVALID_VALUE error is generated."
- */
- if (m == NULL) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glDeletePerfQueryINTEL(invalid queryHandle)");
- return;
- }
-
- /* Let the driver stop the monitor if it's active. */
- if (m->Active) {
- ctx->Driver.ResetPerfMonitor(ctx, m);
- m->Ended = false;
- }
-
- _mesa_HashRemove(ctx->PerfMonitor.Monitors, queryHandle);
- ralloc_free(m->ActiveGroups);
- ralloc_free(m->ActiveCounters);
- ctx->Driver.DeletePerfMonitor(ctx, m);
-}
-
-extern void GLAPIENTRY
-_mesa_BeginPerfQueryINTEL(GLuint queryHandle)
-{
- GET_CURRENT_CONTEXT(ctx);
- struct gl_perf_monitor_object *m;
-
- /* The queryHandle is the counterpart to AMD_performance_monitor's monitor
- * id.
- */
-
- m = lookup_monitor(ctx, queryHandle);
-
- /* The GL_INTEL_performance_query spec says:
- *
- * "If a query handle doesn't reference a previously created performance
- * query instance, an INVALID_VALUE error is generated."
- */
- if (m == NULL) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glBeginPerfQueryINTEL(invalid queryHandle)");
- return;
- }
-
- /* The GL_INTEL_performance_query spec says:
- *
- * "Note that some query types, they cannot be collected in the same
- * time. Therefore calls of BeginPerfQueryINTEL() cannot be nested if
- * they refer to queries of such different types. In such case
- * INVALID_OPERATION error is generated."
- *
- * We also generate an INVALID_OPERATION error if the driver can't begin
- * monitoring for its own reasons, and for nesting the same query.
- */
- if (m->Active) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glBeginPerfQueryINTEL(already active)");
- return;
- }
-
- if (ctx->Driver.BeginPerfMonitor(ctx, m)) {
- m->Active = true;
- m->Ended = false;
- } else {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glBeginPerfQueryINTEL(driver unable to begin monitoring)");
- }
-}
-
-extern void GLAPIENTRY
-_mesa_EndPerfQueryINTEL(GLuint queryHandle)
-{
- GET_CURRENT_CONTEXT(ctx);
- struct gl_perf_monitor_object *m;
-
- /* The queryHandle is the counterpart to AMD_performance_monitor's monitor
- * id.
- */
-
- m = lookup_monitor(ctx, queryHandle);
-
- /* The GL_INTEL_performance_query spec says:
- *
- * "If a performance query is not currently started, an
- * INVALID_OPERATION error will be generated."
- *
- * The specification doesn't state that an invalid handle would be an
- * INVALID_VALUE error. Regardless, query for such a handle will not be
- * started, so we generate an INVALID_OPERATION in that case too.
- */
- if (m == NULL) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glEndPerfQueryINTEL(invalid queryHandle)");
- return;
- }
-
- if (!m->Active) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glEndPerfQueryINTEL(not active)");
- return;
- }
-
- ctx->Driver.EndPerfMonitor(ctx, m);
-
- m->Active = false;
- m->Ended = true;
-}
-
-extern void GLAPIENTRY
-_mesa_GetPerfQueryDataINTEL(GLuint queryHandle, GLuint flags,
- GLsizei dataSize, void *data, GLuint *bytesWritten)
-{
- GET_CURRENT_CONTEXT(ctx);
- struct gl_perf_monitor_object *m;
- bool result_available;
-
- /* The GL_INTEL_performance_query spec says:
- *
- * "If bytesWritten or data pointers are NULL then an INVALID_VALUE
- * error is generated."
- */
- if (!bytesWritten || !data) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glGetPerfQueryDataINTEL(bytesWritten or data is NULL)");
- return;
- }
-
- /* The queryHandle is the counterpart to AMD_performance_monitor's monitor
- * id.
- */
-
- m = lookup_monitor(ctx, queryHandle);
-
- /* The specification doesn't state that an invalid handle generates an
- * error. We could interpret that to mean the case should be handled as
- * "measurement not ready for this query", but what should be done if
- * `flags' equals PERFQUERY_WAIT_INTEL?
- *
- * To resolve this, we just generate an INVALID_VALUE from an invalid query
- * handle.
- */
- if (m == NULL) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glGetPerfQueryDataINTEL(invalid queryHandle)");
- return;
- }
-
- /* We need at least enough room for a single value. */
- if (dataSize < sizeof(GLuint)) {
- *bytesWritten = 0;
- return;
- }
-
- /* The GL_INTEL_performance_query spec says:
- *
- * "The call may end without returning any data if they are not ready
- * for reading as the measurement session is still pending (the
- * EndPerfQueryINTEL() command processing is not finished by
- * hardware). In this case location pointed by the bytesWritten
- * parameter will be set to 0."
- *
- * If EndPerfQueryINTEL() is not called at all, we follow this.
- */
- if (!m->Ended) {
- *bytesWritten = 0;
- return;
- }
-
- result_available = ctx->Driver.IsPerfMonitorResultAvailable(ctx, m);
-
- if (!result_available) {
- if (flags == GL_PERFQUERY_FLUSH_INTEL) {
- ctx->Driver.Flush(ctx);
- } else if (flags == GL_PERFQUERY_WAIT_INTEL) {
- /* Assume Finish() is both enough and not too much to wait for
- * results. If results are still not available after Finish(), the
- * later code automatically bails out with 0 for bytesWritten.
- */
- ctx->Driver.Finish(ctx);
- result_available =
- ctx->Driver.IsPerfMonitorResultAvailable(ctx, m);
- }
- }
-
- if (result_available) {
- ctx->Driver.GetPerfMonitorResult(ctx, m, dataSize, data, (GLint*)bytesWritten);
- } else {
- *bytesWritten = 0;
- }
-}
_mesa_perf_monitor_counter_size(const struct gl_perf_monitor_counter *);
-extern void GLAPIENTRY
-_mesa_GetFirstPerfQueryIdINTEL(GLuint *queryId);
-
-extern void GLAPIENTRY
-_mesa_GetNextPerfQueryIdINTEL(GLuint queryId, GLuint *nextQueryId);
-
-extern void GLAPIENTRY
-_mesa_GetPerfQueryIdByNameINTEL(char *queryName, GLuint *queryId);
-
-extern void GLAPIENTRY
-_mesa_GetPerfQueryInfoINTEL(GLuint queryId,
- GLuint queryNameLength, char *queryName,
- GLuint *dataSize, GLuint *noCounters,
- GLuint *noActiveInstances,
- GLuint *capsMask);
-
-extern void GLAPIENTRY
-_mesa_GetPerfCounterInfoINTEL(GLuint queryId, GLuint counterId,
- GLuint counterNameLength, char *counterName,
- GLuint counterDescLength, char *counterDesc,
- GLuint *counterOffset, GLuint *counterDataSize, GLuint *counterTypeEnum,
- GLuint *counterDataTypeEnum, GLuint64 *rawCounterMaxValue);
-
-extern void GLAPIENTRY
-_mesa_CreatePerfQueryINTEL(GLuint queryId, GLuint *queryHandle);
-
-extern void GLAPIENTRY
-_mesa_DeletePerfQueryINTEL(GLuint queryHandle);
-
-extern void GLAPIENTRY
-_mesa_BeginPerfQueryINTEL(GLuint queryHandle);
-
-extern void GLAPIENTRY
-_mesa_EndPerfQueryINTEL(GLuint queryHandle);
-
-extern void GLAPIENTRY
-_mesa_GetPerfQueryDataINTEL(GLuint queryHandle, GLuint flags,
- GLsizei dataSize, void *data, GLuint *bytesWritten);
-
#endif
--- /dev/null
+/*
+ * Copyright © 2012 Intel Corporation
+ *
+ * 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 (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 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.
+ */
+
+/**
+ * \file performance_query.c
+ * Core Mesa support for the INTEL_performance_query extension.
+ *
+ * In order to implement this extension, start by defining two enums:
+ * one for Groups, and one for Counters. These will be used as indexes into
+ * arrays, so they should start at 0 and increment from there.
+ *
+ * Counter IDs need to be globally unique. That is, you can't have counter 7
+ * in group A and counter 7 in group B. A global enum of all available
+ * counters is a convenient way to guarantee this.
+ */
+
+#include <stdbool.h>
+#include "glheader.h"
+#include "context.h"
+#include "enums.h"
+#include "hash.h"
+#include "macros.h"
+#include "mtypes.h"
+#include "performance_query.h"
+#include "util/bitset.h"
+#include "util/ralloc.h"
+
+void
+_mesa_init_performance_queries(struct gl_context *ctx)
+{
+ ctx->PerfQuery.Objects = _mesa_NewHashTable();
+ ctx->PerfQuery.NumGroups = 0;
+ ctx->PerfQuery.Groups = NULL;
+}
+
+static inline void
+init_groups(struct gl_context *ctx)
+{
+ if (unlikely(!ctx->PerfMonitor.Groups))
+ ctx->Driver.InitPerfMonitorGroups(ctx);
+}
+
+static struct gl_perf_monitor_object *
+new_performance_query(struct gl_context *ctx, GLuint index)
+{
+ unsigned i;
+ struct gl_perf_monitor_object *m = ctx->Driver.NewPerfMonitor(ctx);
+
+ if (m == NULL)
+ return NULL;
+
+ m->Name = index;
+
+ m->Active = false;
+
+ m->ActiveGroups =
+ rzalloc_array(NULL, unsigned, ctx->PerfQuery.NumGroups);
+
+ m->ActiveCounters =
+ ralloc_array(NULL, BITSET_WORD *, ctx->PerfQuery.NumGroups);
+
+ if (m->ActiveGroups == NULL || m->ActiveCounters == NULL)
+ goto fail;
+
+ for (i = 0; i < ctx->PerfQuery.NumGroups; i++) {
+ const struct gl_perf_monitor_group *g = &ctx->PerfQuery.Groups[i];
+
+ m->ActiveCounters[i] = rzalloc_array(m->ActiveCounters, BITSET_WORD,
+ BITSET_WORDS(g->NumCounters));
+ if (m->ActiveCounters[i] == NULL)
+ goto fail;
+ }
+
+ return m;
+
+fail:
+ ralloc_free(m->ActiveGroups);
+ ralloc_free(m->ActiveCounters);
+ ctx->Driver.DeletePerfMonitor(ctx, m);
+ return NULL;
+}
+
+static void
+free_performance_query(GLuint key, void *data, void *user)
+{
+ struct gl_perf_monitor_object *m = data;
+ struct gl_context *ctx = user;
+
+ ralloc_free(m->ActiveGroups);
+ ralloc_free(m->ActiveCounters);
+ ctx->Driver.DeletePerfMonitor(ctx, m);
+}
+
+void
+_mesa_free_performance_queries(struct gl_context *ctx)
+{
+ _mesa_HashDeleteAll(ctx->PerfQuery.Objects,
+ free_performance_query, ctx);
+ _mesa_DeleteHashTable(ctx->PerfQuery.Objects);
+}
+
+static inline struct gl_perf_monitor_object *
+lookup_query(struct gl_context *ctx, GLuint id)
+{
+ return (struct gl_perf_monitor_object *)
+ _mesa_HashLookup(ctx->PerfQuery.Objects, id);
+}
+
+static inline const struct gl_perf_monitor_group *
+get_group(const struct gl_context *ctx, GLuint id)
+{
+ if (id >= ctx->PerfQuery.NumGroups)
+ return NULL;
+
+ return &ctx->PerfQuery.Groups[id];
+}
+
+static inline const struct gl_perf_monitor_counter *
+get_counter(const struct gl_perf_monitor_group *group_obj, GLuint id)
+{
+ if (id >= group_obj->NumCounters)
+ return NULL;
+
+ return &group_obj->Counters[id];
+}
+
+/* For INTEL_performance_query, query id 0 is reserved to be invalid. We use
+ * index to Groups array + 1 as the query id. Same applies to counter id.
+ */
+static inline GLuint
+queryid_to_index(GLuint queryid)
+{
+ return queryid - 1;
+}
+
+static inline GLuint
+index_to_queryid(GLuint index)
+{
+ return index + 1;
+}
+
+static inline bool
+queryid_valid(const struct gl_context *ctx, GLuint queryid)
+{
+ return get_group(ctx, queryid_to_index(queryid)) != NULL;
+}
+
+static inline GLuint
+counterid_to_index(GLuint counterid)
+{
+ return counterid - 1;
+}
+
+/*****************************************************************************/
+
+/**
+ * Returns how many bytes a counter's value takes up.
+ */
+unsigned
+_mesa_perf_query_counter_size(const struct gl_perf_monitor_counter *c)
+{
+ switch (c->Type) {
+ case GL_FLOAT:
+ case GL_PERCENTAGE_AMD:
+ return sizeof(GLfloat);
+ case GL_UNSIGNED_INT:
+ return sizeof(GLuint);
+ case GL_UNSIGNED_INT64_AMD:
+ return sizeof(uint64_t);
+ default:
+ assert(!"Should not get here: invalid counter type");
+ return 0;
+ }
+}
+
+extern void GLAPIENTRY
+_mesa_GetFirstPerfQueryIdINTEL(GLuint *queryId)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ unsigned numGroups;
+
+ init_groups(ctx);
+
+ /* The GL_INTEL_performance_query spec says:
+ *
+ * "If queryId pointer is equal to 0, INVALID_VALUE error is generated."
+ */
+ if (!queryId) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glGetFirstPerfQueryIdINTEL(queryId == NULL)");
+ return;
+ }
+
+ numGroups = ctx->PerfQuery.NumGroups;
+
+ /* The GL_INTEL_performance_query spec says:
+ *
+ * "If the given hardware platform doesn't support any performance
+ * queries, then the value of 0 is returned and INVALID_OPERATION error
+ * is raised."
+ */
+ if (numGroups == 0) {
+ *queryId = 0;
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glGetFirstPerfQueryIdINTEL(no queries supported)");
+ return;
+ }
+
+ *queryId = index_to_queryid(0);
+}
+
+extern void GLAPIENTRY
+_mesa_GetNextPerfQueryIdINTEL(GLuint queryId, GLuint *nextQueryId)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ init_groups(ctx);
+
+ /* The GL_INTEL_performance_query spec says:
+ *
+ * "The result is passed in location pointed by nextQueryId. If query
+ * identified by queryId is the last query available the value of 0 is
+ * returned. If the specified performance query identifier is invalid
+ * then INVALID_VALUE error is generated. If nextQueryId pointer is
+ * equal to 0, an INVALID_VALUE error is generated. Whenever error is
+ * generated, the value of 0 is returned."
+ */
+
+ if (!nextQueryId) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glGetNextPerfQueryIdINTEL(nextQueryId == NULL)");
+ return;
+ }
+
+ if (!queryid_valid(ctx, queryId)) {
+ *nextQueryId = 0;
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glGetNextPerfQueryIdINTEL(invalid query)");
+ return;
+ }
+
+ ++queryId;
+
+ if (!queryid_valid(ctx, queryId)) {
+ *nextQueryId = 0;
+ } else {
+ *nextQueryId = queryId;
+ }
+}
+
+extern void GLAPIENTRY
+_mesa_GetPerfQueryIdByNameINTEL(char *queryName, GLuint *queryId)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ unsigned i;
+
+ init_groups(ctx);
+
+ /* The GL_INTEL_performance_query spec says:
+ *
+ * "If queryName does not reference a valid query name, an INVALID_VALUE
+ * error is generated."
+ */
+ if (!queryName) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glGetPerfQueryIdByNameINTEL(queryName == NULL)");
+ return;
+ }
+
+ /* The specification does not state that this produces an error. */
+ if (!queryId) {
+ _mesa_warning(ctx, "glGetPerfQueryIdByNameINTEL(queryId == NULL)");
+ return;
+ }
+
+ for (i = 0; i < ctx->PerfQuery.NumGroups; ++i) {
+ const struct gl_perf_monitor_group *group_obj = get_group(ctx, i);
+ if (strcmp(group_obj->Name, queryName) == 0) {
+ *queryId = index_to_queryid(i);
+ return;
+ }
+ }
+
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glGetPerfQueryIdByNameINTEL(invalid query name)");
+}
+
+extern void GLAPIENTRY
+_mesa_GetPerfQueryInfoINTEL(GLuint queryId,
+ GLuint queryNameLength, char *queryName,
+ GLuint *dataSize, GLuint *noCounters,
+ GLuint *noActiveInstances,
+ GLuint *capsMask)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ unsigned i;
+
+ const struct gl_perf_monitor_group *group_obj;
+
+ init_groups(ctx);
+
+ group_obj = get_group(ctx, queryid_to_index(queryId));
+ if (group_obj == NULL) {
+ /* The GL_INTEL_performance_query spec says:
+ *
+ * "If queryId does not reference a valid query type, an
+ * INVALID_VALUE error is generated."
+ */
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glGetPerfQueryInfoINTEL(invalid query)");
+ return;
+ }
+
+ if (queryName) {
+ strncpy(queryName, group_obj->Name, queryNameLength);
+
+ /* No specification given about whether the string needs to be
+ * zero-terminated. Zero-terminate the string always as we don't
+ * otherwise communicate the length of the returned string.
+ */
+ if (queryNameLength > 0) {
+ queryName[queryNameLength - 1] = '\0';
+ }
+ }
+
+ if (dataSize) {
+ unsigned size = 0;
+ for (i = 0; i < group_obj->NumCounters; ++i) {
+ /* What we get from the driver is group id (uint32_t) + counter id
+ * (uint32_t) + value.
+ */
+ size += 2 * sizeof(uint32_t) + _mesa_perf_query_counter_size(&group_obj->Counters[i]);
+ }
+ *dataSize = size;
+ }
+
+ if (noCounters) {
+ *noCounters = group_obj->NumCounters;
+ }
+
+ /* The GL_INTEL_performance_query spec says:
+ *
+ * "-- the actual number of already created query instances in
+ * maxInstances location"
+ *
+ * 1) Typo in the specification, should be noActiveInstances.
+ * 2) Another typo in the specification, maxInstances parameter is not listed
+ * in the declaration of this function in the list of new functions.
+ */
+ if (noActiveInstances) {
+ *noActiveInstances = _mesa_HashNumEntries(ctx->PerfQuery.Objects);
+ }
+
+ if (capsMask) {
+ /* TODO: This information not yet available in the monitor structs. For
+ * now, we hardcode SINGLE_CONTEXT, since that's what the implementation
+ * currently tries very hard to do.
+ */
+ *capsMask = GL_PERFQUERY_SINGLE_CONTEXT_INTEL;
+ }
+}
+
+extern void GLAPIENTRY
+_mesa_GetPerfCounterInfoINTEL(GLuint queryId, GLuint counterId,
+ GLuint counterNameLength, char *counterName,
+ GLuint counterDescLength, char *counterDesc,
+ GLuint *counterOffset, GLuint *counterDataSize, GLuint *counterTypeEnum,
+ GLuint *counterDataTypeEnum, GLuint64 *rawCounterMaxValue)
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ const struct gl_perf_monitor_group *group_obj;
+ const struct gl_perf_monitor_counter *counter_obj;
+ unsigned counterIndex;
+ unsigned i;
+
+ init_groups(ctx);
+
+ group_obj = get_group(ctx, queryid_to_index(queryId));
+
+ /* The GL_INTEL_performance_query spec says:
+ *
+ * "If the pair of queryId and counterId does not reference a valid
+ * counter, an INVALID_VALUE error is generated."
+ */
+ if (group_obj == NULL) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glGetPerfCounterInfoINTEL(invalid queryId)");
+ return;
+ }
+
+ counterIndex = counterid_to_index(counterId);
+ counter_obj = get_counter(group_obj, counterIndex);
+
+ if (counter_obj == NULL) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glGetPerfCounterInfoINTEL(invalid counterId)");
+ return;
+ }
+
+ if (counterName) {
+ strncpy(counterName, counter_obj->Name, counterNameLength);
+
+ /* No specification given about whether the string needs to be
+ * zero-terminated. Zero-terminate the string always as we don't
+ * otherwise communicate the length of the returned string.
+ */
+ if (counterNameLength > 0) {
+ counterName[counterNameLength - 1] = '\0';
+ }
+ }
+
+ if (counterDesc) {
+ /* TODO: No separate description text at the moment. We pass the name
+ * again for the moment.
+ */
+ strncpy(counterDesc, counter_obj->Name, counterDescLength);
+
+ /* No specification given about whether the string needs to be
+ * zero-terminated. Zero-terminate the string always as we don't
+ * otherwise communicate the length of the returned string.
+ */
+ if (counterDescLength > 0) {
+ counterDesc[counterDescLength - 1] = '\0';
+ }
+ }
+
+ if (counterOffset) {
+ unsigned offset = 0;
+ for (i = 0; i < counterIndex; ++i) {
+ /* What we get from the driver is group id (uint32_t) + counter id
+ * (uint32_t) + value.
+ */
+ offset += 2 * sizeof(uint32_t) + _mesa_perf_query_counter_size(&group_obj->Counters[i]);
+ }
+ *counterOffset = 2 * sizeof(uint32_t) + offset;
+ }
+
+ if (counterDataSize) {
+ *counterDataSize = _mesa_perf_query_counter_size(counter_obj);
+ }
+
+ if (counterTypeEnum) {
+ /* TODO: Different counter types (semantic type, not data type) not
+ * supported as of yet.
+ */
+ *counterTypeEnum = GL_PERFQUERY_COUNTER_RAW_INTEL;
+ }
+
+ if (counterDataTypeEnum) {
+ switch (counter_obj->Type) {
+ case GL_FLOAT:
+ case GL_PERCENTAGE_AMD:
+ *counterDataTypeEnum = GL_PERFQUERY_COUNTER_DATA_FLOAT_INTEL;
+ break;
+ case GL_UNSIGNED_INT:
+ *counterDataTypeEnum = GL_PERFQUERY_COUNTER_DATA_UINT32_INTEL;
+ break;
+ case GL_UNSIGNED_INT64_AMD:
+ *counterDataTypeEnum = GL_PERFQUERY_COUNTER_DATA_UINT64_INTEL;
+ break;
+ default:
+ assert(!"Should not get here: invalid counter type");
+ return;
+ }
+ }
+
+ if (rawCounterMaxValue) {
+ /* This value is (implicitly) specified to be used only with
+ * GL_PERFQUERY_COUNTER_RAW_INTEL counters. When semantic types for
+ * counters are added, that needs to be checked.
+ */
+
+ /* The GL_INTEL_performance_query spec says:
+ *
+ * "for some raw counters for which the maximal value is
+ * deterministic, the maximal value of the counter in 1 second is
+ * returned in the location pointed by rawCounterMaxValue, otherwise,
+ * the location is written with the value of 0."
+ *
+ * The maximum value reported by the driver at the moment is not with
+ * these semantics, so write 0 always to be safe.
+ */
+ *rawCounterMaxValue = 0;
+ }
+}
+
+extern void GLAPIENTRY
+_mesa_CreatePerfQueryINTEL(GLuint queryId, GLuint *queryHandle)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ GLuint first;
+ GLuint group;
+ const struct gl_perf_monitor_group *group_obj;
+ struct gl_perf_monitor_object *m;
+ unsigned i;
+
+ init_groups(ctx);
+
+ /* This is not specified in the extension, but is the only sane thing to
+ * do.
+ */
+ if (queryHandle == NULL) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCreatePerfQueryINTEL(queryHandle == NULL)");
+ return;
+ }
+
+ group = queryid_to_index(queryId);
+ group_obj = get_group(ctx, group);
+
+ /* The GL_INTEL_performance_query spec says:
+ *
+ * "If queryId does not reference a valid query type, an INVALID_VALUE
+ * error is generated."
+ */
+ if (group_obj == NULL) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glCreatePerfQueryINTEL(invalid queryId)");
+ return;
+ }
+
+ /* The query object created here is the counterpart of a `monitor' in
+ * AMD_performance_monitor. This call is equivalent to calling
+ * GenPerfMonitorsAMD and SelectPerfMonitorCountersAMD with a list of all
+ * counters in a group.
+ */
+
+ /* We keep the query ids contiguous */
+ first = _mesa_HashFindFreeKeyBlock(ctx->PerfQuery.Objects, 1);
+ if (!first) {
+ /* The GL_INTEL_performance_query spec says:
+ *
+ * "If the query instance cannot be created due to exceeding the
+ * number of allowed instances or driver fails query creation due to
+ * an insufficient memory reason, an OUT_OF_MEMORY error is
+ * generated, and the location pointed by queryHandle returns NULL."
+ */
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCreatePerfQueryINTEL");
+ return;
+ }
+
+ m = new_performance_query(ctx, first);
+ if (m == NULL) {
+ _mesa_error_no_memory(__func__);
+ return;
+ }
+
+ _mesa_HashInsert(ctx->PerfQuery.Objects, first, m);
+ *queryHandle = first;
+
+ ctx->Driver.ResetPerfMonitor(ctx, m);
+
+ for (i = 0; i < group_obj->NumCounters; ++i) {
+ ++m->ActiveGroups[group];
+ /* Counters are a continuous range of integers, 0 to NumCounters (excl),
+ * so i is the counter value to use here.
+ */
+ BITSET_SET(m->ActiveCounters[group], i);
+ }
+}
+
+extern void GLAPIENTRY
+_mesa_DeletePerfQueryINTEL(GLuint queryHandle)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ struct gl_perf_monitor_object *m;
+
+ /* The queryHandle is the counterpart to AMD_performance_monitor's monitor
+ * id.
+ */
+ m = lookup_query(ctx, queryHandle);
+
+ /* The GL_INTEL_performance_query spec says:
+ *
+ * "If a query handle doesn't reference a previously created performance
+ * query instance, an INVALID_VALUE error is generated."
+ */
+ if (m == NULL) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glDeletePerfQueryINTEL(invalid queryHandle)");
+ return;
+ }
+
+ /* Let the driver stop the query if it's active. */
+ if (m->Active) {
+ ctx->Driver.ResetPerfMonitor(ctx, m);
+ m->Ended = false;
+ }
+
+ _mesa_HashRemove(ctx->PerfQuery.Objects, queryHandle);
+ ralloc_free(m->ActiveGroups);
+ ralloc_free(m->ActiveCounters);
+ ctx->Driver.DeletePerfMonitor(ctx, m);
+}
+
+extern void GLAPIENTRY
+_mesa_BeginPerfQueryINTEL(GLuint queryHandle)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ struct gl_perf_monitor_object *m;
+
+ /* The queryHandle is the counterpart to AMD_performance_monitor's monitor
+ * id.
+ */
+
+ m = lookup_query(ctx, queryHandle);
+
+ /* The GL_INTEL_performance_query spec says:
+ *
+ * "If a query handle doesn't reference a previously created performance
+ * query instance, an INVALID_VALUE error is generated."
+ */
+ if (m == NULL) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glBeginPerfQueryINTEL(invalid queryHandle)");
+ return;
+ }
+
+ /* The GL_INTEL_performance_query spec says:
+ *
+ * "Note that some query types, they cannot be collected in the same
+ * time. Therefore calls of BeginPerfQueryINTEL() cannot be nested if
+ * they refer to queries of such different types. In such case
+ * INVALID_OPERATION error is generated."
+ *
+ * We also generate an INVALID_OPERATION error if the driver can't begin
+ * a query for its own reasons, and for nesting the same query.
+ */
+ if (m->Active) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glBeginPerfQueryINTEL(already active)");
+ return;
+ }
+
+ if (ctx->Driver.BeginPerfMonitor(ctx, m)) {
+ m->Active = true;
+ m->Ended = false;
+ } else {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glBeginPerfQueryINTEL(driver unable to begin query)");
+ }
+}
+
+extern void GLAPIENTRY
+_mesa_EndPerfQueryINTEL(GLuint queryHandle)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ struct gl_perf_monitor_object *m;
+
+ /* The queryHandle is the counterpart to AMD_performance_monitor's monitor
+ * id.
+ */
+
+ m = lookup_query(ctx, queryHandle);
+
+ /* The GL_INTEL_performance_query spec says:
+ *
+ * "If a performance query is not currently started, an
+ * INVALID_OPERATION error will be generated."
+ *
+ * The specification doesn't state that an invalid handle would be an
+ * INVALID_VALUE error. Regardless, query for such a handle will not be
+ * started, so we generate an INVALID_OPERATION in that case too.
+ */
+ if (m == NULL) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glEndPerfQueryINTEL(invalid queryHandle)");
+ return;
+ }
+
+ if (!m->Active) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glEndPerfQueryINTEL(not active)");
+ return;
+ }
+
+ ctx->Driver.EndPerfMonitor(ctx, m);
+
+ m->Active = false;
+ m->Ended = true;
+}
+
+extern void GLAPIENTRY
+_mesa_GetPerfQueryDataINTEL(GLuint queryHandle, GLuint flags,
+ GLsizei dataSize, void *data, GLuint *bytesWritten)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ struct gl_perf_monitor_object *m;
+ bool result_available;
+
+ /* The GL_INTEL_performance_query spec says:
+ *
+ * "If bytesWritten or data pointers are NULL then an INVALID_VALUE
+ * error is generated."
+ */
+ if (!bytesWritten || !data) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glGetPerfQueryDataINTEL(bytesWritten or data is NULL)");
+ return;
+ }
+
+ /* The queryHandle is the counterpart to AMD_performance_monitor's monitor
+ * id.
+ */
+
+ m = lookup_query(ctx, queryHandle);
+
+ /* The specification doesn't state that an invalid handle generates an
+ * error. We could interpret that to mean the case should be handled as
+ * "measurement not ready for this query", but what should be done if
+ * `flags' equals PERFQUERY_WAIT_INTEL?
+ *
+ * To resolve this, we just generate an INVALID_VALUE from an invalid query
+ * handle.
+ */
+ if (m == NULL) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "glGetPerfQueryDataINTEL(invalid queryHandle)");
+ return;
+ }
+
+ /* We need at least enough room for a single value. */
+ if (dataSize < sizeof(GLuint)) {
+ *bytesWritten = 0;
+ return;
+ }
+
+ /* The GL_INTEL_performance_query spec says:
+ *
+ * "The call may end without returning any data if they are not ready
+ * for reading as the measurement session is still pending (the
+ * EndPerfQueryINTEL() command processing is not finished by
+ * hardware). In this case location pointed by the bytesWritten
+ * parameter will be set to 0."
+ *
+ * If EndPerfQueryINTEL() is not called at all, we follow this.
+ */
+ if (!m->Ended) {
+ *bytesWritten = 0;
+ return;
+ }
+
+ result_available = ctx->Driver.IsPerfMonitorResultAvailable(ctx, m);
+
+ if (!result_available) {
+ if (flags == GL_PERFQUERY_FLUSH_INTEL) {
+ ctx->Driver.Flush(ctx);
+ } else if (flags == GL_PERFQUERY_WAIT_INTEL) {
+ /* Assume Finish() is both enough and not too much to wait for
+ * results. If results are still not available after Finish(), the
+ * later code automatically bails out with 0 for bytesWritten.
+ */
+ ctx->Driver.Finish(ctx);
+ result_available =
+ ctx->Driver.IsPerfMonitorResultAvailable(ctx, m);
+ }
+ }
+
+ if (result_available) {
+ ctx->Driver.GetPerfMonitorResult(ctx, m, dataSize, data, (GLint*)bytesWritten);
+ } else {
+ *bytesWritten = 0;
+ }
+}
--- /dev/null
+/*
+ * Copyright © 2012 Intel Corporation
+ *
+ * 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 (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 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.
+ */
+
+/**
+ * \file performance_query.h
+ * Core Mesa support for the INTEL_performance_query extension
+ */
+
+#pragma once
+#ifndef PERFORMANCE_QUERY_H
+#define PERFORMANCE_QUERY_H
+
+#include "glheader.h"
+
+extern void
+_mesa_init_performance_queries(struct gl_context *ctx);
+
+extern void
+_mesa_free_performance_queries(struct gl_context *ctx);
+
+unsigned
+_mesa_perf_query_counter_size(const struct gl_perf_monitor_counter *);
+
+
+extern void GLAPIENTRY
+_mesa_GetFirstPerfQueryIdINTEL(GLuint *queryId);
+
+extern void GLAPIENTRY
+_mesa_GetNextPerfQueryIdINTEL(GLuint queryId, GLuint *nextQueryId);
+
+extern void GLAPIENTRY
+_mesa_GetPerfQueryIdByNameINTEL(char *queryName, GLuint *queryId);
+
+extern void GLAPIENTRY
+_mesa_GetPerfQueryInfoINTEL(GLuint queryId,
+ GLuint queryNameLength, char *queryName,
+ GLuint *dataSize, GLuint *noCounters,
+ GLuint *noActiveInstances,
+ GLuint *capsMask);
+
+extern void GLAPIENTRY
+_mesa_GetPerfCounterInfoINTEL(GLuint queryId, GLuint counterId,
+ GLuint counterNameLength, char *counterName,
+ GLuint counterDescLength, char *counterDesc,
+ GLuint *counterOffset, GLuint *counterDataSize, GLuint *counterTypeEnum,
+ GLuint *counterDataTypeEnum, GLuint64 *rawCounterMaxValue);
+
+extern void GLAPIENTRY
+_mesa_CreatePerfQueryINTEL(GLuint queryId, GLuint *queryHandle);
+
+extern void GLAPIENTRY
+_mesa_DeletePerfQueryINTEL(GLuint queryHandle);
+
+extern void GLAPIENTRY
+_mesa_BeginPerfQueryINTEL(GLuint queryHandle);
+
+extern void GLAPIENTRY
+_mesa_EndPerfQueryINTEL(GLuint queryHandle);
+
+extern void GLAPIENTRY
+_mesa_GetPerfQueryDataINTEL(GLuint queryHandle, GLuint flags,
+ GLsizei dataSize, void *data, GLuint *bytesWritten);
+
+#endif
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