From aa4117a9e45928289ba193506b377d06d1e09584 Mon Sep 17 00:00:00 2001 From: Jason Ekstrand Date: Wed, 22 Jun 2016 16:46:20 -0700 Subject: [PATCH] i965/blorp: Get rid of brw_blorp_surface_info::map_stencil_as_y_tiled Now that we're carrying around the isl_surf, we can just modify it directly instead of passing an extra bit around. Reviewed-by: Topi Pohjolainen --- src/mesa/drivers/dri/i965/brw_blorp.c | 12 ++------- src/mesa/drivers/dri/i965/brw_blorp.h | 15 ----------- src/mesa/drivers/dri/i965/brw_blorp_blit.cpp | 38 ++++++++++++++++++---------- 3 files changed, 26 insertions(+), 39 deletions(-) diff --git a/src/mesa/drivers/dri/i965/brw_blorp.c b/src/mesa/drivers/dri/i965/brw_blorp.c index 220be83..7a4b94b 100644 --- a/src/mesa/drivers/dri/i965/brw_blorp.c +++ b/src/mesa/drivers/dri/i965/brw_blorp.c @@ -71,7 +71,6 @@ brw_blorp_surface_info_init(struct brw_context *brw, info->num_samples = mt->num_samples; info->array_layout = mt->array_layout; - info->map_stencil_as_y_tiled = false; info->msaa_layout = mt->msaa_layout; info->swizzle = SWIZZLE_XYZW; @@ -80,11 +79,8 @@ brw_blorp_surface_info_init(struct brw_context *brw, switch (format) { case MESA_FORMAT_S_UINT8: - /* The miptree is a W-tiled stencil buffer. Surface states can't be set - * up for W tiling, so we'll need to use Y tiling and have the WM - * program swizzle the coordinates. - */ - info->map_stencil_as_y_tiled = true; + assert(info->surf.tiling == ISL_TILING_W); + /* Prior to Broadwell, we can't render to R8_UINT */ info->brw_surfaceformat = brw->gen >= 8 ? BRW_SURFACEFORMAT_R8_UINT : BRW_SURFACEFORMAT_R8_UNORM; break; @@ -290,10 +286,6 @@ brw_blorp_emit_surface_state(struct brw_context *brw, surf.image_alignment_el = isl_extent3d(4, 2, 1); } - /* We need to fake W-tiling with Y-tiling */ - if (surface->map_stencil_as_y_tiled) - surf.tiling = ISL_TILING_Y0; - union isl_color_value clear_color = { .u32 = { 0, 0, 0, 0 } }; const struct isl_surf *aux_surf = NULL; diff --git a/src/mesa/drivers/dri/i965/brw_blorp.h b/src/mesa/drivers/dri/i965/brw_blorp.h index 0694181..010b760 100644 --- a/src/mesa/drivers/dri/i965/brw_blorp.h +++ b/src/mesa/drivers/dri/i965/brw_blorp.h @@ -118,21 +118,6 @@ struct brw_blorp_surface_info */ uint32_t y_offset; - /* Setting this flag indicates that the buffer's contents are W-tiled - * stencil data, but the surface state should be set up for Y tiled - * MESA_FORMAT_R_UNORM8 data (this is necessary because surface states don't - * support W tiling). - * - * Since W tiles are 64 pixels wide by 64 pixels high, whereas Y tiles of - * MESA_FORMAT_R_UNORM8 data are 128 pixels wide by 32 pixels high, the width and - * pitch stored in the surface state will be multiplied by 2, and the - * height will be halved. Also, since W and Y tiles store their data in a - * different order, the width and height will be rounded up to a multiple - * of the tile size, to ensure that the WM program can access the full - * width and height of the buffer. - */ - bool map_stencil_as_y_tiled; - unsigned num_samples; /** diff --git a/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp b/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp index f7f685b..d984825 100644 --- a/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp +++ b/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp @@ -1716,16 +1716,6 @@ brw_blorp_blit_miptrees(struct brw_context *brw, params.dst.num_samples = 0; } - if (params.dst.map_stencil_as_y_tiled && params.dst.num_samples > 1) { - /* If the destination surface is a W-tiled multisampled stencil buffer - * that we're mapping as Y tiled, then we need to arrange for the WM - * program to run once per sample rather than once per pixel, because - * the memory layout of related samples doesn't match between W and Y - * tiling. - */ - wm_prog_key.persample_msaa_dispatch = true; - } - if (params.src.num_samples > 0 && params.dst.num_samples > 1) { /* We are blitting from a multisample buffer to a multisample buffer, so * we must preserve samples within a pixel. This means we have to @@ -1809,8 +1799,6 @@ brw_blorp_blit_miptrees(struct brw_context *brw, dst_mt->msaa_layout == INTEL_MSAA_LAYOUT_CMS) wm_prog_key.dst_layout = INTEL_MSAA_LAYOUT_NONE; - wm_prog_key.src_tiled_w = params.src.map_stencil_as_y_tiled; - wm_prog_key.dst_tiled_w = params.dst.map_stencil_as_y_tiled; /* Round floating point values to nearest integer to avoid "off by one texel" * kind of errors when blitting. */ @@ -1884,7 +1872,22 @@ brw_blorp_blit_miptrees(struct brw_context *brw, wm_prog_key.use_kill = true; } - if (params.dst.map_stencil_as_y_tiled) { + if (params.dst.surf.tiling == ISL_TILING_W) { + /* We need to fake W-tiling with Y-tiling */ + params.dst.surf.tiling = ISL_TILING_Y0; + + wm_prog_key.dst_tiled_w = true; + + if (params.dst.num_samples > 1) { + /* If the destination surface is a W-tiled multisampled stencil + * buffer that we're mapping as Y tiled, then we need to arrange for + * the WM program to run once per sample rather than once per pixel, + * because the memory layout of related samples doesn't match between + * W and Y tiling. + */ + wm_prog_key.persample_msaa_dispatch = true; + } + /* We must modify the rectangle we send through the rendering pipeline * (and the size and x/y offset of the destination surface), to account * for the fact that we are mapping it as Y-tiled when it is in fact @@ -1943,7 +1946,14 @@ brw_blorp_blit_miptrees(struct brw_context *brw, wm_prog_key.use_kill = true; } - if (params.src.map_stencil_as_y_tiled) { + if (brw->gen < 8 && params.src.surf.tiling == ISL_TILING_W) { + /* On Haswell and earlier, we have to fake W-tiled sources as Y-tiled. + * Broadwell adds support for sampling from stencil. + */ + params.src.surf.tiling = ISL_TILING_Y0; + + wm_prog_key.src_tiled_w = true; + /* We must modify the size and x/y offset of the source surface to * account for the fact that we are mapping it as Y-tiled when it is in * fact W tiled. -- 2.7.4