From c08f2083ee0c5d71351fe8eb9f41218a6fed7b10 Mon Sep 17 00:00:00 2001 From: Chris Forbes Date: Sun, 15 Sep 2013 17:58:12 +1200 Subject: i965: Emit a second set of SURFACE_STATE for gather4 from textures. This allows us to use a different surface format for gather4, which is required for R32G32_FLOAT to work on Gen7. V4: - Only emit alternate surface state for shaders which will actually use it. - Pass a simple 'for_gather' flag rather than a function pointer. The callee can decide what w/a to apply. Signed-off-by: Chris Forbes Reviewed-by: Kenneth Graunke --- src/mesa/drivers/dri/i965/brw_context.h | 3 +- src/mesa/drivers/dri/i965/brw_wm_surface_state.c | 38 +++++++++++++++++++---- src/mesa/drivers/dri/i965/gen7_wm_surface_state.c | 6 +++- 3 files changed, 39 insertions(+), 8 deletions(-) diff --git a/src/mesa/drivers/dri/i965/brw_context.h b/src/mesa/drivers/dri/i965/brw_context.h index 0d8c93eed27..c6e66550329 100644 --- a/src/mesa/drivers/dri/i965/brw_context.h +++ b/src/mesa/drivers/dri/i965/brw_context.h @@ -928,7 +928,8 @@ struct brw_context void (*update_texture_surface)(struct gl_context *ctx, unsigned unit, - uint32_t *surf_offset); + uint32_t *surf_offset, + bool for_gather); void (*update_renderbuffer_surface)(struct brw_context *brw, struct gl_renderbuffer *rb, bool layered, diff --git a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c index 4c3eb697167..6e918571710 100644 --- a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c +++ b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c @@ -251,7 +251,8 @@ brw_update_buffer_texture_surface(struct gl_context *ctx, static void brw_update_texture_surface(struct gl_context *ctx, unsigned unit, - uint32_t *surf_offset) + uint32_t *surf_offset, + bool for_gather) { struct brw_context *brw = brw_context(ctx); struct gl_texture_object *tObj = ctx->Texture.Unit[unit]._Current; @@ -268,6 +269,8 @@ brw_update_texture_surface(struct gl_context *ctx, surf = brw_state_batch(brw, AUB_TRACE_SURFACE_STATE, 6 * 4, 32, surf_offset); + (void) for_gather; /* no w/a to apply for this gen */ + surf[0] = (translate_tex_target(tObj->Target) << BRW_SURFACE_TYPE_SHIFT | BRW_SURFACE_MIPMAPLAYOUT_BELOW << BRW_SURFACE_MIPLAYOUT_SHIFT | BRW_SURFACE_CUBEFACE_ENABLES | @@ -712,7 +715,8 @@ const struct brw_tracked_state gen6_renderbuffer_surfaces = { static void update_stage_texture_surfaces(struct brw_context *brw, const struct gl_program *prog, - uint32_t *surf_offset) + uint32_t *surf_offset, + bool for_gather) { if (!prog) return; @@ -729,7 +733,7 @@ update_stage_texture_surfaces(struct brw_context *brw, /* _NEW_TEXTURE */ if (ctx->Texture.Unit[unit]._ReallyEnabled) { - brw->vtbl.update_texture_surface(ctx, unit, surf_offset + s); + brw->vtbl.update_texture_surface(ctx, unit, surf_offset + s, for_gather); } } } @@ -754,13 +758,35 @@ brw_update_texture_surfaces(struct brw_context *brw) /* _NEW_TEXTURE */ update_stage_texture_surfaces(brw, vs, brw->vs.base.surf_offset + - SURF_INDEX_VEC4_TEXTURE(0)); + SURF_INDEX_VEC4_TEXTURE(0), + false); update_stage_texture_surfaces(brw, gs, brw->gs.base.surf_offset + - SURF_INDEX_VEC4_TEXTURE(0)); + SURF_INDEX_VEC4_TEXTURE(0), + false); update_stage_texture_surfaces(brw, fs, brw->wm.base.surf_offset + - SURF_INDEX_TEXTURE(0)); + SURF_INDEX_TEXTURE(0), + false); + + /* emit alternate set of surface state for gather. this + * allows the surface format to be overriden for only the + * gather4 messages. */ + if (vs && vs->UsesGather) + update_stage_texture_surfaces(brw, vs, + brw->vs.base.surf_offset + + SURF_INDEX_VEC4_GATHER_TEXTURE(0), + true); + if (gs && gs->UsesGather) + update_stage_texture_surfaces(brw, gs, + brw->gs.base.surf_offset + + SURF_INDEX_VEC4_GATHER_TEXTURE(0), + true); + if (fs && fs->UsesGather) + update_stage_texture_surfaces(brw, fs, + brw->wm.base.surf_offset + + SURF_INDEX_GATHER_TEXTURE(0), + true); brw->state.dirty.brw |= BRW_NEW_SURFACES; } diff --git a/src/mesa/drivers/dri/i965/gen7_wm_surface_state.c b/src/mesa/drivers/dri/i965/gen7_wm_surface_state.c index 89c0055e16c..7f934f89e83 100644 --- a/src/mesa/drivers/dri/i965/gen7_wm_surface_state.c +++ b/src/mesa/drivers/dri/i965/gen7_wm_surface_state.c @@ -299,7 +299,8 @@ gen7_update_buffer_texture_surface(struct gl_context *ctx, static void gen7_update_texture_surface(struct gl_context *ctx, unsigned unit, - uint32_t *surf_offset) + uint32_t *surf_offset, + bool for_gather) { struct brw_context *brw = brw_context(ctx); struct gl_texture_object *tObj = ctx->Texture.Unit[unit]._Current; @@ -322,6 +323,9 @@ gen7_update_texture_surface(struct gl_context *ctx, tObj->DepthMode, sampler->sRGBDecode); + if (for_gather && tex_format == BRW_SURFACEFORMAT_R32G32_FLOAT) + tex_format = BRW_SURFACEFORMAT_R32G32_FLOAT_LD; + surf[0] = translate_tex_target(tObj->Target) << BRW_SURFACE_TYPE_SHIFT | tex_format << BRW_SURFACE_FORMAT_SHIFT | gen7_surface_tiling_mode(mt->region->tiling) | -- cgit v1.2.3