[Mesa-dev] [v2 12/19] i965: Add a few assertions on lossless compression
Topi Pohjolainen
topi.pohjolainen at intel.com
Thu Feb 11 18:34:05 UTC 2016
v2 (Ben): Use combination of msaa_layout and number of samples
instead of introducing explicit type for lossless
compression (intel_miptree_is_lossless_compressed()).
Signed-off-by: Topi Pohjolainen <topi.pohjolainen at intel.com>
---
src/mesa/drivers/dri/i965/brw_blorp_blit.cpp | 5 +++++
src/mesa/drivers/dri/i965/brw_context.c | 4 ++++
2 files changed, 9 insertions(+)
diff --git a/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp b/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp
index e8c5e95..05fff91 100644
--- a/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp
+++ b/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp
@@ -70,7 +70,12 @@ brw_blorp_blit_miptrees(struct brw_context *brw,
* the destination buffer because we use the standard render path to render
* to destination color buffers, and the standard render path is
* fast-color-aware.
+ * Lossless compression is only introduced for gen9 onwards whereas
+ * blorp is not supported even for gen8. Therefore it should be impossible
+ * to end up here with single sampled compressed surfaces.
*/
+ assert(!intel_miptree_is_lossless_compressed(brw, src_mt));
+ assert(!intel_miptree_is_lossless_compressed(brw, dst_mt));
intel_miptree_resolve_color(brw, src_mt, 0);
intel_miptree_slice_resolve_depth(brw, src_mt, src_level, src_layer);
intel_miptree_slice_resolve_depth(brw, dst_mt, dst_level, dst_layer);
diff --git a/src/mesa/drivers/dri/i965/brw_context.c b/src/mesa/drivers/dri/i965/brw_context.c
index b61036e..60acbba 100644
--- a/src/mesa/drivers/dri/i965/brw_context.c
+++ b/src/mesa/drivers/dri/i965/brw_context.c
@@ -262,6 +262,10 @@ intel_update_state(struct gl_context * ctx, GLuint new_state)
_mesa_get_srgb_format_linear(mt->format) == mt->format)
continue;
+ /* Lossless compression is not supported for SRGB formats, it
+ * should be impossible to get here with such surfaces.
+ */
+ assert(!intel_miptree_is_lossless_compressed(brw, mt));
intel_miptree_resolve_color(brw, mt, 0);
brw_render_cache_set_check_flush(brw, mt->bo);
}
--
2.5.0
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