diff options
| -rw-r--r-- | src/mesa/drivers/dri/intel/intel_mipmap_tree.c | 34 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/intel/intel_mipmap_tree.h | 4 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/intel/intel_screen.c | 3 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/intel/intel_tex_image.c | 1 |
4 files changed, 42 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/intel/intel_mipmap_tree.c b/src/mesa/drivers/dri/intel/intel_mipmap_tree.c index 4c98e90..5b767df 100644 --- a/src/mesa/drivers/dri/intel/intel_mipmap_tree.c +++ b/src/mesa/drivers/dri/intel/intel_mipmap_tree.c @@ -1475,6 +1475,40 @@ intel_miptree_resolve_color(struct intel_context *intel, /** + * Make it possible to share the region backing the given miptree with another + * process or another miptree. + * + * Fast color clears are unsafe with shared buffers, so we need to resolve and + * then discard the MCS buffer, if present. We also set the mcs_state to + * INTEL_MCS_STATE_NONE to ensure that no MCS buffer gets allocated in the + * future. + */ +void +intel_miptree_make_shareable(struct intel_context *intel, + struct intel_mipmap_tree *mt) +{ +#ifdef I915 + /* Nothing needs to be done for I915 */ + (void) intel; + (void) mt; +#else + /* MCS buffers are also used for multisample buffers, but we can't resolve + * away a multisample MCS buffer because it's an integral part of how the + * pixel data is stored. Fortunately this code path should never be + * reached for multisample buffers. + */ + assert(mt->msaa_layout == INTEL_MSAA_LAYOUT_NONE); + + if (mt->mcs_mt) { + intel_miptree_resolve_color(intel, mt); + intel_miptree_release(&mt->mcs_mt); + mt->mcs_state = INTEL_MCS_STATE_NONE; + } +#endif +} + + +/** * \brief Get pointer offset into stencil buffer. * * The stencil buffer is W tiled. Since the GTT is incapable of W fencing, we diff --git a/src/mesa/drivers/dri/intel/intel_mipmap_tree.h b/src/mesa/drivers/dri/intel/intel_mipmap_tree.h index 8ea1bef..6dab092 100644 --- a/src/mesa/drivers/dri/intel/intel_mipmap_tree.h +++ b/src/mesa/drivers/dri/intel/intel_mipmap_tree.h @@ -723,6 +723,10 @@ intel_miptree_resolve_color(struct intel_context *intel, struct intel_mipmap_tree *mt); void +intel_miptree_make_shareable(struct intel_context *intel, + struct intel_mipmap_tree *mt); + +void intel_miptree_downsample(struct intel_context *intel, struct intel_mipmap_tree *mt); diff --git a/src/mesa/drivers/dri/intel/intel_screen.c b/src/mesa/drivers/dri/intel/intel_screen.c index b4758f9..60a69a6 100644 --- a/src/mesa/drivers/dri/intel/intel_screen.c +++ b/src/mesa/drivers/dri/intel/intel_screen.c @@ -300,6 +300,8 @@ intel_setup_image_from_mipmap_tree(struct intel_context *intel, __DRIimage *imag unsigned int draw_x, draw_y; uint32_t mask_x, mask_y; + intel_miptree_make_shareable(intel, mt); + intel_miptree_check_level_layer(mt, level, zoffset); intel_region_get_tile_masks(mt->region, &mask_x, &mask_y, false); @@ -396,6 +398,7 @@ intel_create_image_from_renderbuffer(__DRIcontext *context, } irb = intel_renderbuffer(rb); + intel_miptree_make_shareable(intel, irb->mt); image = calloc(1, sizeof *image); if (image == NULL) return NULL; diff --git a/src/mesa/drivers/dri/intel/intel_tex_image.c b/src/mesa/drivers/dri/intel/intel_tex_image.c index fba02c2..b91b2b5 100644 --- a/src/mesa/drivers/dri/intel/intel_tex_image.c +++ b/src/mesa/drivers/dri/intel/intel_tex_image.c @@ -342,6 +342,7 @@ intelSetTexBuffer2(__DRIcontext *pDRICtx, GLint target, _mesa_lock_texture(&intel->ctx, texObj); texImage = _mesa_get_tex_image(ctx, texObj, target, level); + intel_miptree_make_shareable(intel, rb->mt); intel_set_texture_image_region(ctx, texImage, rb->mt->region, target, internalFormat, texFormat, 0, rb->mt->region->width, |