Module: Mesa Branch: master Commit: 27d5be0b8fafecefc4f0378ca940cea8c0415715 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=27d5be0b8fafecefc4f0378ca940cea8c0415715
Author: Brian Paul <[email protected]> Date: Thu Dec 10 14:55:33 2015 -0700 svga: avoid emitting redundant SetSamplers() commands This greatly reduces the number of SetSamplers() commands for some applications. Reviewed-by: José Fonseca <[email protected]> Reviewed-by: Charmaine Lee <[email protected]> --- src/gallium/drivers/svga/svga_context.h | 3 +++ src/gallium/drivers/svga/svga_state_sampler.c | 22 +++++++++++++++------- 2 files changed, 18 insertions(+), 7 deletions(-) diff --git a/src/gallium/drivers/svga/svga_context.h b/src/gallium/drivers/svga/svga_context.h index db9491b..78e346a 100644 --- a/src/gallium/drivers/svga/svga_context.h +++ b/src/gallium/drivers/svga/svga_context.h @@ -347,6 +347,9 @@ struct svga_hw_draw_state SVGA3dSurfaceFormat ib_format; unsigned ib_offset; + unsigned num_samplers[PIPE_SHADER_TYPES]; + SVGA3dSamplerId samplers[PIPE_SHADER_TYPES][PIPE_MAX_SAMPLERS]; + /* used for rebinding */ unsigned num_sampler_views[PIPE_SHADER_TYPES]; unsigned default_constbuf_size[PIPE_SHADER_TYPES]; diff --git a/src/gallium/drivers/svga/svga_state_sampler.c b/src/gallium/drivers/svga/svga_state_sampler.c index c5d52bb..b070f65 100644 --- a/src/gallium/drivers/svga/svga_state_sampler.c +++ b/src/gallium/drivers/svga/svga_state_sampler.c @@ -301,13 +301,21 @@ update_samplers(struct svga_context *svga, unsigned dirty ) } if (count > 0) { - ret = SVGA3D_vgpu10_SetSamplers(svga->swc, - count, - 0, /* start */ - svga_shader_type(shader), /* type */ - ids); - if (ret != PIPE_OK) - return ret; + if (count != svga->state.hw_draw.num_samplers[shader] || + memcmp(ids, svga->state.hw_draw.samplers[shader], + count * sizeof(ids[0])) != 0) { + /* HW state is really changing */ + ret = SVGA3D_vgpu10_SetSamplers(svga->swc, + count, + 0, /* start */ + svga_shader_type(shader), /* type */ + ids); + if (ret != PIPE_OK) + return ret; + memcpy(svga->state.hw_draw.samplers[shader], ids, + count * sizeof(ids[0])); + svga->state.hw_draw.num_samplers[shader] = count; + } } } _______________________________________________ mesa-commit mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/mesa-commit
