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| /************************************************************************** |
| * |
| * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. |
| * 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 TUNGSTEN GRAPHICS 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. |
| * |
| **************************************************************************/ |
| |
| |
| /** |
| * glBegin/EndQuery interface to pipe |
| * |
| * \author Brian Paul |
| */ |
| |
| |
| #include "main/imports.h" |
| #include "main/context.h" |
| |
| #include "pipe/p_context.h" |
| #include "pipe/p_defines.h" |
| #include "pipe/p_screen.h" |
| #include "st_context.h" |
| #include "st_cb_queryobj.h" |
| #include "st_cb_bitmap.h" |
| |
| |
| static struct gl_query_object * |
| st_NewQueryObject(struct gl_context *ctx, GLuint id) |
| { |
| struct st_query_object *stq = ST_CALLOC_STRUCT(st_query_object); |
| if (stq) { |
| stq->base.Id = id; |
| stq->base.Ready = GL_TRUE; |
| stq->pq = NULL; |
| stq->type = PIPE_QUERY_TYPES; /* an invalid value */ |
| return &stq->base; |
| } |
| return NULL; |
| } |
| |
| |
| |
| static void |
| st_DeleteQuery(struct gl_context *ctx, struct gl_query_object *q) |
| { |
| struct pipe_context *pipe = st_context(ctx)->pipe; |
| struct st_query_object *stq = st_query_object(q); |
| |
| if (stq->pq) { |
| pipe->destroy_query(pipe, stq->pq); |
| stq->pq = NULL; |
| } |
| |
| if (stq->pq_begin) { |
| pipe->destroy_query(pipe, stq->pq_begin); |
| stq->pq_begin = NULL; |
| } |
| |
| free(stq); |
| } |
| |
| |
| static void |
| st_BeginQuery(struct gl_context *ctx, struct gl_query_object *q) |
| { |
| struct st_context *st = st_context(ctx); |
| struct pipe_context *pipe = st->pipe; |
| struct st_query_object *stq = st_query_object(q); |
| unsigned type; |
| |
| st_flush_bitmap_cache(st_context(ctx)); |
| |
| /* convert GL query type to Gallium query type */ |
| switch (q->Target) { |
| case GL_ANY_SAMPLES_PASSED: |
| case GL_ANY_SAMPLES_PASSED_CONSERVATIVE: |
| /* fall-through */ |
| case GL_SAMPLES_PASSED_ARB: |
| type = PIPE_QUERY_OCCLUSION_COUNTER; |
| break; |
| case GL_PRIMITIVES_GENERATED: |
| type = PIPE_QUERY_PRIMITIVES_GENERATED; |
| break; |
| case GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN: |
| type = PIPE_QUERY_PRIMITIVES_EMITTED; |
| break; |
| case GL_TIME_ELAPSED: |
| if (st->has_time_elapsed) |
| type = PIPE_QUERY_TIME_ELAPSED; |
| else |
| type = PIPE_QUERY_TIMESTAMP; |
| break; |
| default: |
| assert(0 && "unexpected query target in st_BeginQuery()"); |
| return; |
| } |
| |
| if (stq->type != type) { |
| /* free old query of different type */ |
| if (stq->pq) { |
| pipe->destroy_query(pipe, stq->pq); |
| stq->pq = NULL; |
| } |
| if (stq->pq_begin) { |
| pipe->destroy_query(pipe, stq->pq_begin); |
| stq->pq_begin = NULL; |
| } |
| stq->type = PIPE_QUERY_TYPES; /* an invalid value */ |
| } |
| |
| if (q->Target == GL_TIME_ELAPSED && |
| type == PIPE_QUERY_TIMESTAMP) { |
| /* Determine time elapsed by emitting two timestamp queries. */ |
| if (!stq->pq_begin) { |
| stq->pq_begin = pipe->create_query(pipe, type); |
| stq->type = type; |
| } |
| pipe->end_query(pipe, stq->pq_begin); |
| } else { |
| if (!stq->pq) { |
| stq->pq = pipe->create_query(pipe, type); |
| stq->type = type; |
| } |
| pipe->begin_query(pipe, stq->pq); |
| } |
| assert(stq->type == type); |
| } |
| |
| |
| static void |
| st_EndQuery(struct gl_context *ctx, struct gl_query_object *q) |
| { |
| struct pipe_context *pipe = st_context(ctx)->pipe; |
| struct st_query_object *stq = st_query_object(q); |
| |
| st_flush_bitmap_cache(st_context(ctx)); |
| |
| if ((q->Target == GL_TIMESTAMP || |
| q->Target == GL_TIME_ELAPSED) && |
| !stq->pq) { |
| stq->pq = pipe->create_query(pipe, PIPE_QUERY_TIMESTAMP); |
| stq->type = PIPE_QUERY_TIMESTAMP; |
| } |
| |
| pipe->end_query(pipe, stq->pq); |
| } |
| |
| |
| static boolean |
| get_query_result(struct pipe_context *pipe, |
| struct st_query_object *stq, |
| boolean wait) |
| { |
| if (!pipe->get_query_result(pipe, |
| stq->pq, |
| wait, |
| (void *)&stq->base.Result)) { |
| return FALSE; |
| } |
| |
| if (stq->base.Target == GL_TIME_ELAPSED && |
| stq->type == PIPE_QUERY_TIMESTAMP) { |
| /* Calculate the elapsed time from the two timestamp queries */ |
| GLuint64EXT Result0 = 0; |
| assert(stq->pq_begin); |
| pipe->get_query_result(pipe, stq->pq_begin, TRUE, (void *)&Result0); |
| stq->base.Result -= Result0; |
| } else { |
| assert(!stq->pq_begin); |
| } |
| |
| return TRUE; |
| } |
| |
| |
| static void |
| st_WaitQuery(struct gl_context *ctx, struct gl_query_object *q) |
| { |
| struct pipe_context *pipe = st_context(ctx)->pipe; |
| struct st_query_object *stq = st_query_object(q); |
| |
| /* this function should only be called if we don't have a ready result */ |
| assert(!stq->base.Ready); |
| |
| while (!stq->base.Ready && |
| !get_query_result(pipe, stq, TRUE)) |
| { |
| /* nothing */ |
| } |
| |
| q->Ready = GL_TRUE; |
| } |
| |
| |
| static void |
| st_CheckQuery(struct gl_context *ctx, struct gl_query_object *q) |
| { |
| struct pipe_context *pipe = st_context(ctx)->pipe; |
| struct st_query_object *stq = st_query_object(q); |
| assert(!q->Ready); /* we should not get called if Ready is TRUE */ |
| q->Ready = get_query_result(pipe, stq, FALSE); |
| } |
| |
| |
| static uint64_t |
| st_GetTimestamp(struct gl_context *ctx) |
| { |
| struct pipe_screen *screen = st_context(ctx)->pipe->screen; |
| |
| return screen->get_timestamp(screen); |
| } |
| |
| |
| void st_init_query_functions(struct dd_function_table *functions) |
| { |
| functions->NewQueryObject = st_NewQueryObject; |
| functions->DeleteQuery = st_DeleteQuery; |
| functions->BeginQuery = st_BeginQuery; |
| functions->EndQuery = st_EndQuery; |
| functions->WaitQuery = st_WaitQuery; |
| functions->CheckQuery = st_CheckQuery; |
| functions->GetTimestamp = st_GetTimestamp; |
| } |