summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorNicolai Hähnle <[email protected]>2016-03-11 20:04:19 -0500
committerNicolai Hähnle <[email protected]>2016-03-14 17:24:40 -0500
commit71a1b54b33d2c1db1a0576943c31ae9adaf8d5e2 (patch)
treee470554a8641a3034f76e2a36a3741e0f3375b78
parent8c497b8fb59fa80abb9be315defe809b982958f4 (diff)
gallium: add access field to pipe_image_view
This allows drivers to make smarter decisions e.g. about whether the image has to be decompressed. Reviewed-by: Ilia Mirkin <[email protected]> Reviewed-by: Marek Olšák <[email protected]>
-rw-r--r--src/gallium/include/pipe/p_defines.h8
-rw-r--r--src/gallium/include/pipe/p_state.h3
2 files changed, 10 insertions, 1 deletions
diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h
index a490b3b98ea..bdd76ab1f81 100644
--- a/src/gallium/include/pipe/p_defines.h
+++ b/src/gallium/include/pipe/p_defines.h
@@ -541,6 +541,14 @@ enum pipe_reset_status
PIPE_HANDLE_USAGE_WRITE)
/**
+ * pipe_image_view access flags.
+ */
+#define PIPE_IMAGE_ACCESS_READ (1 << 0)
+#define PIPE_IMAGE_ACCESS_WRITE (1 << 1)
+#define PIPE_IMAGE_ACCESS_READ_WRITE (PIPE_IMAGE_ACCESS_READ | \
+ PIPE_IMAGE_ACCESS_WRITE)
+
+/**
* Implementation capabilities/limits which are queried through
* pipe_screen::get_param()
*/
diff --git a/src/gallium/include/pipe/p_state.h b/src/gallium/include/pipe/p_state.h
index c568c483940..2e720ce25f3 100644
--- a/src/gallium/include/pipe/p_state.h
+++ b/src/gallium/include/pipe/p_state.h
@@ -393,13 +393,14 @@ struct pipe_sampler_view
/**
- * A description of a writable buffer or texture that can be bound to a shader
+ * A description of a buffer or texture image that can be bound to a shader
* stage.
*/
struct pipe_image_view
{
struct pipe_resource *resource; /**< resource into which this is a view */
enum pipe_format format; /**< typed PIPE_FORMAT_x */
+ unsigned access; /**< PIPE_IMAGE_ACCESS_x */
union {
struct {