From 6eb2a7fbafd49e75b6cbbee57f23dda63eff73ef Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Wed, 7 Jul 2010 15:20:19 +0200 Subject: r300g: implement hyper-z support. (v4) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This implements fast Z clear, Z compression, and HiZ support for r300->r500 GPUs. It also allows cbzb clears when fast Z clears are being used for the ZB. It requires a kernel with hyper-z support. Thanks to Marek Olšák , who started this off, and Alex Deucher at AMD for providing lots of hints. v2: squashed zmask ram size fix] squashed r300g/blitter: fix Z readback when compressed] v3: rebase around texture changes in master - .1 fix more bits v4: migrated to using u_mm in r300_texture to manage hiz/zmask rams consistently disabled HiZ when using OQ flush z-cache before turning hyper-z off update hyper-z state on dsa state change store depthclearvalue across cbzb clears and replace it afterwards. Signed-off-by: Dave Airlie --- src/gallium/auxiliary/util/u_blitter.c | 44 ++++++++++++++++++++++++++++++++++ src/gallium/auxiliary/util/u_blitter.h | 2 ++ 2 files changed, 46 insertions(+) (limited to 'src/gallium/auxiliary/util') diff --git a/src/gallium/auxiliary/util/u_blitter.c b/src/gallium/auxiliary/util/u_blitter.c index 0d94aaae95..b5b86b7214 100644 --- a/src/gallium/auxiliary/util/u_blitter.c +++ b/src/gallium/auxiliary/util/u_blitter.c @@ -87,6 +87,7 @@ struct blitter_context_priv void *dsa_write_depth_keep_stencil; void *dsa_keep_depth_stencil; void *dsa_keep_depth_write_stencil; + void *dsa_flush_depth_stencil; void *velem_state; @@ -156,6 +157,10 @@ struct blitter_context *util_blitter_create(struct pipe_context *pipe) ctx->dsa_keep_depth_stencil = pipe->create_depth_stencil_alpha_state(pipe, &dsa); + dsa.depth.writemask = 1; + ctx->dsa_flush_depth_stencil = + pipe->create_depth_stencil_alpha_state(pipe, &dsa); + dsa.depth.enabled = 1; dsa.depth.writemask = 1; dsa.depth.func = PIPE_FUNC_ALWAYS; @@ -940,3 +945,42 @@ void util_blitter_clear_depth_stencil(struct blitter_context *blitter, UTIL_BLITTER_ATTRIB_NONE, NULL); blitter_restore_CSOs(ctx); } + +/* Clear a region of a depth stencil surface. */ +void util_blitter_flush_depth_stencil(struct blitter_context *blitter, + struct pipe_surface *dstsurf) +{ + struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter; + struct pipe_context *pipe = ctx->base.pipe; + struct pipe_framebuffer_state fb_state; + + assert(dstsurf->texture); + if (!dstsurf->texture) + return; + + /* check the saved state */ + blitter_check_saved_CSOs(ctx); + assert(blitter->saved_fb_state.nr_cbufs != ~0); + + /* bind CSOs */ + pipe->bind_blend_state(pipe, ctx->blend_keep_color); + pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_flush_depth_stencil); + + pipe->bind_rasterizer_state(pipe, ctx->rs_state); + pipe->bind_fs_state(pipe, blitter_get_fs_col(ctx, 0)); + pipe->bind_vs_state(pipe, ctx->vs_col); + pipe->bind_vertex_elements_state(pipe, ctx->velem_state); + + /* set a framebuffer state */ + fb_state.width = dstsurf->width; + fb_state.height = dstsurf->height; + fb_state.nr_cbufs = 0; + fb_state.cbufs[0] = 0; + fb_state.zsbuf = dstsurf; + pipe->set_framebuffer_state(pipe, &fb_state); + + blitter_set_dst_dimensions(ctx, dstsurf->width, dstsurf->height); + blitter->draw_rectangle(blitter, 0, 0, dstsurf->width, dstsurf->height, 0, + UTIL_BLITTER_ATTRIB_NONE, NULL); + blitter_restore_CSOs(ctx); +} diff --git a/src/gallium/auxiliary/util/u_blitter.h b/src/gallium/auxiliary/util/u_blitter.h index ba3f92eca8..f316587dea 100644 --- a/src/gallium/auxiliary/util/u_blitter.h +++ b/src/gallium/auxiliary/util/u_blitter.h @@ -200,6 +200,8 @@ void util_blitter_clear_depth_stencil(struct blitter_context *blitter, unsigned dstx, unsigned dsty, unsigned width, unsigned height); +void util_blitter_flush_depth_stencil(struct blitter_context *blitter, + struct pipe_surface *dstsurf); /* The functions below should be used to save currently bound constant state * objects inside a driver. The objects are automatically restored at the end * of the util_blitter_{clear, copy_region, fill_region} functions and then -- cgit v1.2.3