diff options
| author | José Fonseca <[email protected]> | 2012-12-09 10:08:13 +0000 |
|---|---|---|
| committer | José Fonseca <[email protected]> | 2012-12-20 16:33:49 +0000 |
| commit | 3160b0b9fc2b49b0e9fe684b955eebf3691024ff (patch) | |
| tree | 8125293ed921fa635998dbaefe99d639af7cb609 /src/mesa/state_tracker/st_extensions.c | |
| parent | 9976216bf699be092e14b66ba3a3ecfa3859e87f (diff) | |
mesa/st: Implement GL_TIME_ELAPSED w/ PIPE_QUERY_TIMESTAMP.
ARB/EXT_timer_query's definition of GL_TIME_ELAPSED match precisely the
subtraction of two GL_TIMESTAMP queries.
And for a lot of drivers, that's precisely how they have to implement
internally -- by emitting two hardware timestamp queries.
So, to simplify driver implementation, simply allow doing so in the state
tracker.
Eventually if no driver implements PIPE_QUERY_TIME_ELAPSED then we could
retire it.
Reviewed-by: Dave Airlie <[email protected]>
Reviewed-by: Marek Olšák <[email protected]>
Reviewed-by: Brian Paul <[email protected]>
Diffstat (limited to 'src/mesa/state_tracker/st_extensions.c')
| -rw-r--r-- | src/mesa/state_tracker/st_extensions.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c index f7deb9c6083..e7cf4f3bb8c 100644 --- a/src/mesa/state_tracker/st_extensions.c +++ b/src/mesa/state_tracker/st_extensions.c @@ -371,6 +371,7 @@ void st_init_extensions(struct st_context *st) { o(ARB_shader_texture_lod), PIPE_CAP_SM3 }, { o(ARB_shadow), PIPE_CAP_TEXTURE_SHADOW_MAP }, { o(ARB_texture_non_power_of_two), PIPE_CAP_NPOT_TEXTURES }, + { o(ARB_timer_query), PIPE_CAP_QUERY_TIMESTAMP }, { o(ARB_transform_feedback2), PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME }, { o(ARB_transform_feedback3), PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME }, @@ -382,7 +383,6 @@ void st_init_extensions(struct st_context *st) { o(EXT_texture_filter_anisotropic), PIPE_CAP_ANISOTROPIC_FILTER }, { o(EXT_texture_mirror_clamp), PIPE_CAP_TEXTURE_MIRROR_CLAMP }, { o(EXT_texture_swizzle), PIPE_CAP_TEXTURE_SWIZZLE }, - { o(EXT_timer_query), PIPE_CAP_QUERY_TIME_ELAPSED }, { o(EXT_transform_feedback), PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS }, { o(AMD_seamless_cubemap_per_texture), PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE }, @@ -652,9 +652,12 @@ void st_init_extensions(struct st_context *st) if (ctx->Const.MaxDualSourceDrawBuffers > 0) ctx->Extensions.ARB_blend_func_extended = GL_TRUE; - if (screen->get_param(screen, PIPE_CAP_QUERY_TIME_ELAPSED) && - screen->get_param(screen, PIPE_CAP_QUERY_TIMESTAMP)) { - ctx->Extensions.ARB_timer_query = GL_TRUE; + st->has_time_elapsed = + screen->get_param(screen, PIPE_CAP_QUERY_TIME_ELAPSED); + + if (st->has_time_elapsed || + ctx->Extensions.ARB_timer_query) { + ctx->Extensions.EXT_timer_query = GL_TRUE; } if (ctx->Extensions.ARB_transform_feedback2 && |